GNUnet  0.11.x
transport-testing-communicator.c
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1 /*
2  This file is part of GNUnet.
3  Copyright (C) 2019 GNUnet e.V.
4 
5  GNUnet is free software: you can redistribute it and/or modify it
6  under the terms of the GNU Affero General Public License as published
7  by the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  GNUnet is distributed in the hope that it will be useful, but
11  WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  Affero General Public License for more details.
14 
15  You should have received a copy of the GNU Affero General Public License
16  along with this program. If not, see <http://www.gnu.org/licenses/>.
17 
18  SPDX-License-Identifier: AGPL3.0-or-later
19  */
20 
27 #include "platform.h"
28 #include "gnunet_util_lib.h"
29 #include "gnunet_protocols.h"
30 #include "gnunet_constants.h"
33 #include "gnunet_hello_lib.h"
34 #include "gnunet_signatures.h"
35 #include "transport.h"
36 #include <inttypes.h>
37 
38 #define LOG(kind, ...) GNUNET_log_from (kind, "transport-testing2", __VA_ARGS__)
39 
40 struct MyClient
41 {
42  struct MyClient *prev;
43  struct MyClient *next;
48 
53 
58 
59 };
60 
65 {
70 
79 
84 
88  uint32_t qid;
89 
93  uint64_t mid;
94 
98  uint32_t nt;
99 
103  uint32_t mtu;
104 
108  uint64_t q_len;
109 
113  uint32_t priority;
114 
118  uint32_t cs;
119 
124 
129 };
130 
131 
136 {
137 };
138 
139 
149 static int
151  void *cls,
152  const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
153 {
154  uint16_t size;
155 
156  size = ntohs (msg->header.size) - sizeof(*msg);
157  if (0 == size)
158  return GNUNET_OK; /* receive-only communicator */
160  return GNUNET_OK;
161 }
162 
163 
172 static void
174  void *cls,
175  const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
176 {
177  struct MyClient *client = cls;
179  client->tc;
180  uint16_t size;
181  tc_h->c_mq = client->c_mq;
182 
183  size = ntohs (msg->header.size) - sizeof(*msg);
184  if (0 == size)
185  {
187  return; /* receive-only communicator */
188  }
189  tc_h->c_characteristics = ntohl (msg->cc);
190  tc_h->c_addr_prefix = GNUNET_strdup ((const char *) &msg[1]);
191  if (NULL != tc_h->communicator_available_cb)
192  {
193  LOG (GNUNET_ERROR_TYPE_DEBUG, "calling communicator_available_cb()\n");
194  tc_h->communicator_available_cb (tc_h->cb_cls,
195  tc_h,
196  tc_h->c_characteristics,
197  tc_h->c_addr_prefix);
198  }
200  LOG (GNUNET_ERROR_TYPE_DEBUG, "finished communicator_available_cb()\n");
201 
202 }
203 
204 
212 static int
214  const struct
215  GNUNET_TRANSPORT_CommunicatorBackchannel *msg)
216 {
217  // struct TransportClient *tc = cls;
218 
219  // if (CT_COMMUNICATOR != tc->type)
220  // {
221  // GNUNET_break (0);
222  // return GNUNET_SYSERR;
223  // }
224  // GNUNET_MQ_check_boxed_message (msg);
225  return GNUNET_OK;
226 }
227 
228 
237 static void
239  const struct
240  GNUNET_TRANSPORT_CommunicatorBackchannel *
241  bc_msg)
242 {
243  struct MyClient *client = cls;
245  client->tc;
247  struct GNUNET_MessageHeader *msg;
248  msg = (struct GNUNET_MessageHeader *) &bc_msg[1];
249  uint16_t isize = ntohs (msg->size);
250  const char *target_communicator = ((const char *) msg) + isize;
251  struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming *cbi;
252  struct GNUNET_MQ_Envelope *env;
253 
255  "Received backchannel message\n");
256  if (tc_h->bc_enabled != GNUNET_YES)
257  {
259  return;
260  }
261  /* Find client providing this communicator */
262  /* Finally, deliver backchannel message to communicator */
264  "Delivering backchannel message of type %u to %s\n",
265  ntohs (msg->type),
266  target_communicator);
267  other_tc_h = tc_h->bc_cb (tc_h, msg, (struct
268  GNUNET_PeerIdentity*) &bc_msg->pid);
269  env = GNUNET_MQ_msg_extra (
270  cbi,
271  isize,
273  cbi->pid = tc_h->peer_id;
274  memcpy (&cbi[1], msg, isize);
275 
276 
277  GNUNET_MQ_send (other_tc_h->c_mq, env);
279 }
280 
281 
289 static int
290 check_add_address (void *cls,
291  const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
292 {
293  // if (CT_COMMUNICATOR != tc->type)
294  // {
295  // GNUNET_break (0);
296  // return GNUNET_SYSERR;
297  // }
299  return GNUNET_OK;
300 }
301 
302 
311 static void
313  const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
314 {
315  struct MyClient *client = cls;
317  client->tc;
318  uint16_t size;
319  size = ntohs (msg->header.size) - sizeof(*msg);
320  LOG (GNUNET_ERROR_TYPE_DEBUG, "received add address cb %u\n", size);
321  if (0 == size)
322  return; /* receive-only communicator */
323  LOG (GNUNET_ERROR_TYPE_DEBUG, "received add address cb %u\n", size);
324  tc_h->c_address = GNUNET_strdup ((const char *) &msg[1]);
325  if (NULL != tc_h->add_address_cb)
326  {
327  LOG (GNUNET_ERROR_TYPE_DEBUG, "calling add_address_cb()\n");
328  tc_h->add_address_cb (tc_h->cb_cls,
329  tc_h,
330  tc_h->c_address,
331  GNUNET_TIME_relative_ntoh (msg->expiration),
332  msg->aid,
333  ntohl (msg->nt));
334  }
336 }
337 
338 
346 static int
348  const struct GNUNET_TRANSPORT_IncomingMessage *msg)
349 {
350  // struct TransportClient *tc = cls;
351 
352  // if (CT_COMMUNICATOR != tc->type)
353  // {
354  // GNUNET_break (0);
355  // return GNUNET_SYSERR;
356  // }
358  return GNUNET_OK;
359 }
360 
361 
370 static void
372  const struct GNUNET_TRANSPORT_IncomingMessage *inc_msg)
373 {
374  struct MyClient *client = cls;
376  client->tc;
377  struct GNUNET_MessageHeader *msg;
378  msg = (struct GNUNET_MessageHeader *) &inc_msg[1];
379  size_t payload_len = ntohs (msg->size) - sizeof (struct
381  if (NULL != tc_h->incoming_msg_cb)
382  {
383  tc_h->incoming_msg_cb (tc_h->cb_cls,
384  tc_h,
385  (char*) &msg[1],
386  payload_len);
387  }
388  else
389  {
391  "Incoming message from communicator but no handler!\n");
392  }
393  if (GNUNET_YES == ntohl (inc_msg->fc_on))
394  {
395  /* send ACK when done to communicator for flow control! */
396  struct GNUNET_MQ_Envelope *env;
397  struct GNUNET_TRANSPORT_IncomingMessageAck *ack;
398 
400  GNUNET_assert (NULL != env);
401  ack->reserved = htonl (0);
402  ack->fc_id = inc_msg->fc_id;
403  ack->sender = inc_msg->sender;
404  GNUNET_MQ_send (tc_h->c_mq, env);
405  }
406 
408 }
409 
410 
417 static void
419  const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
420 {
421  struct MyClient *client = cls;
423  client->tc;
424 
425  if (NULL != tc_h->queue_create_reply_cb)
426  {
427  tc_h->queue_create_reply_cb (tc_h->cb_cls, tc_h, GNUNET_YES);
428  }
430 }
431 
432 
442 static void
444  void *cls,
445  const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
446 {
447  struct MyClient *client = cls;
449  client->tc;
450 
451  if (NULL != tc_h->queue_create_reply_cb)
452  {
453  tc_h->queue_create_reply_cb (tc_h->cb_cls, tc_h, GNUNET_NO);
454  }
456 }
457 
458 
465 static int
467  const struct GNUNET_TRANSPORT_AddQueueMessage *aqm)
468 {
470  return GNUNET_OK;
471 }
472 
473 
482 static void
484  const struct GNUNET_TRANSPORT_AddQueueMessage *msg)
485 {
486  struct MyClient *client = cls;
488  client->tc;
490 
492  "Got queue with ID %u\n", msg->qid);
493  for (tc_queue = tc_h->queue_head; NULL != tc_queue; tc_queue = tc_queue->next)
494  {
495  if (tc_queue->qid == msg->qid)
496  break;
497  }
498  if (NULL == tc_queue)
499  {
500  tc_queue =
502  tc_queue->tc_h = tc_h;
503  tc_queue->qid = msg->qid;
504  tc_queue->peer_id = msg->receiver;
505  GNUNET_CONTAINER_DLL_insert (tc_h->queue_head, tc_h->queue_tail, tc_queue);
506  }
507  GNUNET_assert (tc_queue->qid == msg->qid);
508  GNUNET_assert (0 == GNUNET_memcmp (&tc_queue->peer_id, &msg->receiver));
509  tc_queue->nt = msg->nt;
510  tc_queue->mtu = ntohl (msg->mtu);
511  tc_queue->cs = msg->cs;
512  tc_queue->priority = ntohl (msg->priority);
513  tc_queue->q_len = GNUNET_ntohll (msg->q_len);
514  if (NULL != tc_h->add_queue_cb)
515  {
516  tc_h->add_queue_cb (tc_h->cb_cls, tc_h, tc_queue, tc_queue->mtu);
517  }
519 }
520 
521 
530 static void
532  const struct
533  GNUNET_TRANSPORT_UpdateQueueMessage *msg)
534 {
535  struct MyClient *client = cls;
537  client->tc;
539 
541  "Received queue update message for %u with q_len %" PRIu64 "\n",
542  msg->qid, GNUNET_ntohll (msg->q_len));
543  tc_queue = tc_h->queue_head;
544  if (NULL != tc_queue)
545  {
546  while (tc_queue->qid != msg->qid)
547  {
548  tc_queue = tc_queue->next;
549  }
550  }
551  GNUNET_assert (tc_queue->qid == msg->qid);
552  GNUNET_assert (0 == GNUNET_memcmp (&tc_queue->peer_id, &msg->receiver));
553  tc_queue->nt = msg->nt;
554  tc_queue->mtu = ntohl (msg->mtu);
555  tc_queue->cs = msg->cs;
556  tc_queue->priority = ntohl (msg->priority);
557  // Uncomment this for alternativ 1 of backchannel functionality
558  tc_queue->q_len += GNUNET_ntohll (msg->q_len);
559  // Until here for alternativ 1
560  // Uncomment this for alternativ 2 of backchannel functionality
561  // tc_queue->q_len = GNUNET_ntohll (msg->q_len);
562  // Until here for alternativ 2
564 }
565 
566 
572 static void
573 shutdown_service (void *cls)
574 {
575  struct GNUNET_SERVICE_Handle *h = cls;
576 
578  "Shutting down service!\n");
579 
581 }
582 
583 
593 static void *
594 connect_cb (void *cls,
596  struct GNUNET_MQ_Handle *mq)
597 {
599  struct MyClient *new_c;
600 
601  LOG (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected to %p.\n",
602  client, tc_h);
603  new_c = GNUNET_new (struct MyClient);
604  new_c->client = client;
605  new_c->c_mq = mq;
606  new_c->tc = tc_h;
608  tc_h->client_tail,
609  new_c);
610 
611  if (NULL == tc_h->queue_head)
612  return new_c;
613  /* Iterate over queues. They are yet to be opened. Request opening. */
614  for (struct
616  tc_h->queue_head;
617  NULL != tc_queue_iter;
618  tc_queue_iter = tc_queue_iter->next)
619  {
620  if (NULL == tc_queue_iter->open_queue_env)
621  continue;
622  /* Send the previously created mq envelope to request the creation of the
623  * queue. */
624  GNUNET_MQ_send (tc_h->c_mq,
625  tc_queue_iter->open_queue_env);
626  tc_queue_iter->open_queue_env = NULL;
627  }
628  return new_c;
629 }
630 
631 
639 static void
640 disconnect_cb (void *cls,
642  void *internal_cls)
643 {
644  struct MyClient *cl = cls;
646 
647  for (cl = tc_h->client_head; NULL != cl; cl = cl->next)
648  {
649  if (cl->client != client)
650  continue;
652  tc_h->client_tail,
653  cl);
654  if (cl->c_mq == tc_h->c_mq)
655  tc_h->c_mq = NULL;
656  GNUNET_free (cl);
657  break;
658  }
659  LOG (GNUNET_ERROR_TYPE_DEBUG, "Client disconnected.\n");
660 }
661 
662 
669 static void
671  const struct GNUNET_TRANSPORT_SendMessageToAck *sma)
672 {
673  struct MyClient *client = cls;
675  // NOP
676 }
677 
678 
686 static void
689 {
690  struct GNUNET_MQ_MessageHandler mh[] = {
691  GNUNET_MQ_hd_var_size (communicator_available,
693  struct GNUNET_TRANSPORT_CommunicatorAvailableMessage,
694  tc_h),
695  GNUNET_MQ_hd_var_size (communicator_backchannel,
697  struct GNUNET_TRANSPORT_CommunicatorBackchannel,
698  tc_h),
699  GNUNET_MQ_hd_var_size (add_address,
701  struct GNUNET_TRANSPORT_AddAddressMessage,
702  tc_h),
703  // GNUNET_MQ_hd_fixed_size (del_address,
704  // GNUNET_MESSAGE_TYPE_TRANSPORT_DEL_ADDRESS,
705  // struct GNUNET_TRANSPORT_DelAddressMessage,
706  // NULL),
707  GNUNET_MQ_hd_var_size (incoming_msg,
709  struct GNUNET_TRANSPORT_IncomingMessage,
710  tc_h),
711  GNUNET_MQ_hd_fixed_size (queue_create_ok,
713  struct GNUNET_TRANSPORT_CreateQueueResponse,
714  tc_h),
715  GNUNET_MQ_hd_fixed_size (queue_create_fail,
717  struct GNUNET_TRANSPORT_CreateQueueResponse,
718  tc_h),
719  GNUNET_MQ_hd_var_size (add_queue_message,
721  struct GNUNET_TRANSPORT_AddQueueMessage,
722  tc_h),
723  GNUNET_MQ_hd_fixed_size (update_queue_message,
725  struct GNUNET_TRANSPORT_UpdateQueueMessage,
726  tc_h),
727  // GNUNET_MQ_hd_fixed_size (del_queue_message,
728  // GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_TEARDOWN,
729  // struct GNUNET_TRANSPORT_DelQueueMessage,
730  // NULL),
731  GNUNET_MQ_hd_fixed_size (send_message_ack,
733  struct GNUNET_TRANSPORT_SendMessageToAck,
734  tc_h),
736  };
737 
738 
739  tc_h->sh = GNUNET_SERVICE_start ("transport",
740  tc_h->cfg,
741  &connect_cb,
742  &disconnect_cb,
743  tc_h,
744  mh);
745  GNUNET_assert (NULL != tc_h->sh);
746 }
747 
748 
754 static void
756 {
757  if (0 != GNUNET_OS_process_kill (proc, SIGTERM))
758  {
760  "Error shutting down process with SIGERM, trying SIGKILL\n");
761  if (0 != GNUNET_OS_process_kill (proc, SIGKILL))
762  {
764  "Error shutting down process with SIGERM and SIGKILL\n");
765  }
766  }
768 }
769 
775 static void
777 {
778  struct GNUNET_OS_Process *proc = cls;
779  shutdown_process (proc);
780 }
781 
787 static void
789 {
790  struct GNUNET_OS_Process *proc = cls;
791  shutdown_process (proc);
792 }
793 
799 static void
801 {
802  struct GNUNET_OS_Process *proc = cls;
803  shutdown_process (proc);
804 }
805 
806 
812 static void
815  const char *binary_name)
816 {
817  char *binary;
818  char *loprefix;
819  char *section_name;
820 
821  LOG (GNUNET_ERROR_TYPE_DEBUG, "communicator_start\n");
822 
823  section_name = strchr (binary_name, '-');
824  section_name++;
825 
827  section_name,
828  "PREFIX",
829  &loprefix))
830  loprefix = GNUNET_strdup ("");
831 
832 
833  binary = GNUNET_OS_get_libexec_binary_path (binary_name);
835  NULL,
836  loprefix,
837  binary,
838  binary_name,
839  "-c",
840  tc_h->cfg_filename,
841  NULL);
842  if (NULL == tc_h->c_proc)
843  {
844  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start communicator!");
845  return;
846  }
847  LOG (GNUNET_ERROR_TYPE_INFO, "started communicator\n");
848  GNUNET_free (binary);
849 }
850 
851 
857 static void
858 shutdown_nat (void *cls)
859 {
860  struct GNUNET_OS_Process *proc = cls;
861  shutdown_process (proc);
862 }
863 
864 
870 static void
871 shutdown_resolver (void *cls)
872 {
873  struct GNUNET_OS_Process *proc = cls;
874  shutdown_process (proc);
875 }
876 
877 
882 static void
885 {
886  char *binary;
887 
888  LOG (GNUNET_ERROR_TYPE_DEBUG, "resolver_start\n");
889  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-resolver");
893  NULL,
894  NULL,
895  NULL,
896  binary,
897  "gnunet-service-resolver",
898  "-c",
899  tc_h->cfg_filename,
900  NULL);
901  if (NULL == tc_h->resolver_proc)
902  {
903  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start resolver service!");
904  return;
905  }
906  LOG (GNUNET_ERROR_TYPE_INFO, "started resolver service\n");
907  GNUNET_free (binary);
908 
909 }
910 
915 static void
918 {
919  char *binary;
920 
921  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-statistics");
923  NULL,
924  NULL,
925  NULL,
926  binary,
927  "gnunet-service-statistics",
928  "-c",
929  tc_h->cfg_filename,
930  NULL);
931  if (NULL == tc_h->stat_proc)
932  {
933  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start Statistics!");
934  return;
935  }
936  LOG (GNUNET_ERROR_TYPE_INFO, "started Statistics\n");
937  GNUNET_free (binary);
938 }
939 
944 static void
947 {
948  char *binary;
949 
950  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-peerstore");
952  NULL,
953  NULL,
954  NULL,
955  binary,
956  "gnunet-service-peerstore",
957  "-c",
958  tc_h->cfg_filename,
959  NULL);
960  if (NULL == tc_h->ps_proc)
961  {
962  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start Peerstore!");
963  return;
964  }
965  LOG (GNUNET_ERROR_TYPE_INFO, "started Peerstore\n");
966  GNUNET_free (binary);
967 }
968 
973 static void
976 {
977  char *binary;
978 
979  LOG (GNUNET_ERROR_TYPE_DEBUG, "nat_start\n");
980  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-nat");
983  NULL,
984  NULL,
985  NULL,
986  binary,
987  "gnunet-service-nat",
988  "-c",
989  tc_h->cfg_filename,
990  NULL);
991  if (NULL == tc_h->nat_proc)
992  {
993  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start NAT!");
994  return;
995  }
996  LOG (GNUNET_ERROR_TYPE_INFO, "started NAT\n");
997  GNUNET_free (binary);
998 }
999 
1000 
1015  const char *service_name,
1016  const char *binary_name,
1017  const char *cfg_filename,
1018  const struct GNUNET_PeerIdentity *peer_id,
1026  void *cb_cls)
1027 {
1029 
1031  "Starting new transport/communicator combo with config %s\n",
1032  cfg_filename);
1033  tc_h =
1035  tc_h->cfg_filename = GNUNET_strdup (cfg_filename);
1036  tc_h->cfg = GNUNET_CONFIGURATION_create ();
1037  if ((GNUNET_SYSERR == GNUNET_CONFIGURATION_load (tc_h->cfg, cfg_filename)))
1038  {
1040  _ ("Malformed configuration file `%s', exit ...\n"),
1041  cfg_filename);
1042  GNUNET_free (tc_h->cfg_filename);
1044  GNUNET_free (tc_h);
1045  return NULL;
1046  }
1048  "communicator-test",
1049  "BACKCHANNEL_ENABLED");
1053  tc_h->add_queue_cb = add_queue_cb;
1054  tc_h->incoming_msg_cb = incoming_message_cb;
1055  tc_h->bc_cb = bc_cb;
1056  tc_h->peer_id = *peer_id;
1057  tc_h->cb_cls = cb_cls;
1058 
1059  /* Start communicator part of service */
1061  /* Start NAT */
1062  nat_start (tc_h);
1063  /* Start resolver service */
1064  resolver_start (tc_h);
1065  /* Start peerstore service */
1066  peerstore_start (tc_h);
1067  /* Start statistic service */
1068  statistics_start (tc_h);
1069  /* Schedule start communicator */
1070  communicator_start (tc_h,
1071  binary_name);
1072  return tc_h;
1073 }
1074 
1075 
1076 void
1079 {
1080  shutdown_communicator (tc_h->c_proc);
1081  shutdown_service (tc_h->sh);
1082  shutdown_nat (tc_h->nat_proc);
1084  shutdown_peerstore (tc_h->ps_proc);
1087  GNUNET_free (tc_h);
1088 }
1089 
1090 
1098 void
1101  const struct GNUNET_PeerIdentity *peer_id,
1102  const char *address)
1103 {
1105  static uint32_t idgen;
1106  char *prefix;
1107  struct GNUNET_TRANSPORT_CreateQueue *msg;
1108  struct GNUNET_MQ_Envelope *env;
1109  size_t alen;
1110 
1111  tc_queue =
1113  tc_queue->tc_h = tc_h;
1114  prefix = GNUNET_HELLO_address_to_prefix (address);
1115  if (NULL == prefix)
1116  {
1117  GNUNET_break (0); /* We got an invalid address!? */
1118  GNUNET_free (tc_queue);
1119  return;
1120  }
1121  GNUNET_free (prefix);
1122  alen = strlen (address) + 1;
1123  env =
1125  msg->request_id = htonl (idgen++);
1126  tc_queue->qid = msg->request_id;
1127  msg->receiver = *peer_id;
1128  tc_queue->peer_id = *peer_id;
1129  memcpy (&msg[1], address, alen);
1130  if (NULL != tc_h->c_mq)
1131  {
1133  "Sending queue create immediately\n");
1134  GNUNET_MQ_send (tc_h->c_mq, env);
1135  }
1136  else
1137  {
1138  tc_queue->open_queue_env = env;
1139  }
1140  GNUNET_CONTAINER_DLL_insert (tc_h->queue_head, tc_h->queue_tail, tc_queue);
1141 }
1142 
1143 
1153 void
1157  void *cont_cls,
1158  const void *payload,
1159  size_t payload_size)
1160 {
1161  struct GNUNET_MessageHeader *mh;
1162  struct GNUNET_TRANSPORT_SendMessageTo *msg;
1163  struct GNUNET_MQ_Envelope *env;
1164  size_t inbox_size;
1167 
1168  tc_queue = NULL;
1169  for (tc_queue_tmp = tc_h->queue_head;
1170  NULL != tc_queue_tmp;
1171  tc_queue_tmp = tc_queue_tmp->next)
1172  {
1173  if (tc_queue_tmp->q_len <= 0)
1174  continue;
1175  if (NULL == tc_queue)
1176  {
1178  "Selecting queue with prio %u, len %" PRIu64 " and MTU %u\n",
1179  tc_queue_tmp->priority,
1180  tc_queue_tmp->q_len,
1181  tc_queue_tmp->mtu);
1182  tc_queue = tc_queue_tmp;
1183  continue;
1184  }
1185  if (tc_queue->priority < tc_queue_tmp->priority)
1186  {
1188  "Selecting queue with prio %u, len %" PRIu64 " and MTU %u\n",
1189  tc_queue_tmp->priority,
1190  tc_queue_tmp->q_len,
1191  tc_queue_tmp->mtu);
1192  tc_queue = tc_queue_tmp;
1193  }
1194  }
1195  GNUNET_assert (NULL != tc_queue);
1196  // Uncomment this for alternativ 1 of backchannel functionality
1198  tc_queue->q_len--;
1199  // Until here for alternativ 1
1201  "Sending message\n");
1202  inbox_size = sizeof (struct GNUNET_MessageHeader) + payload_size;
1203  env = GNUNET_MQ_msg_extra (msg,
1204  inbox_size,
1206  GNUNET_assert (NULL != env);
1207  msg->qid = htonl (tc_queue->qid);
1208  msg->mid = tc_queue->mid++;
1209  msg->receiver = tc_queue->peer_id;
1210  mh = (struct GNUNET_MessageHeader *) &msg[1];
1211  mh->size = htons (inbox_size);
1213  memcpy (&mh[1],
1214  payload,
1215  payload_size);
1216  if (NULL != cont)
1217  GNUNET_MQ_notify_sent (env,
1218  cont,
1219  cont_cls);
1220  GNUNET_MQ_send (tc_queue->tc_h->c_mq,
1221  env);
1222 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
static void shutdown_process(struct GNUNET_OS_Process *proc)
Task run at shutdown to kill communicator and clean up.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * next
Next element inside a DLL.
void(* GNUNET_TRANSPORT_TESTING_AddAddressCallback)(void *cls, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, const char *address, struct GNUNET_TIME_Relative expiration, uint32_t aid, enum GNUNET_NetworkType nt)
Receive information about the address of a communicator.
struct GNUNET_PeerIdentity peer_id
Peer ID of the peer on the other side of the queue.
static char * cfg_filename
Name of the configuration file.
struct GNUNET_OS_Process * GNUNET_OS_start_process_s(enum GNUNET_OS_InheritStdioFlags std_inheritance, const int *lsocks, const char *filename,...)
Start a process.
Definition: os_priority.c:747
#define GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG
transport tells communicator it wants to transmit
struct GNUNET_MessageHeader * msg
Definition: 005.c:2
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE
transport tells communicator it wants a queue
struct GNUNET_OS_Process * GNUNET_OS_start_process(enum GNUNET_OS_InheritStdioFlags std_inheritance, struct GNUNET_DISK_PipeHandle *pipe_stdin, struct GNUNET_DISK_PipeHandle *pipe_stdout, struct GNUNET_DISK_PipeHandle *pipe_stderr, const char *filename,...)
Start a process.
Definition: os_priority.c:678
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * tc
The TCH.
static void handle_send_message_ack(void *cls, const struct GNUNET_TRANSPORT_SendMessageToAck *sma)
Message was transmitted.
void(* GNUNET_TRANSPORT_TESTING_AddQueueCallback)(void *cls, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue, size_t mtu)
Handle opening of queue.
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
void GNUNET_TRANSPORT_TESTING_transport_communicator_service_stop(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_load(struct GNUNET_CONFIGURATION_Handle *cfg, const char *filename)
Load configuration.
common internal definitions for transport service
void GNUNET_OS_process_destroy(struct GNUNET_OS_Process *proc)
Cleans up process structure contents (OS-dependent) and deallocates it.
Definition: os_priority.c:287
Handle to a service.
Definition: service.c:116
struct MyClient * next
struct GNUNET_OS_Process * stat_proc
statistics service process
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_OK
Response from communicator: will try to create queue.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *(* GNUNET_TRANSPORT_TESTING_BackchannelCallback)(void *cls, struct GNUNET_MessageHeader *msg, struct GNUNET_PeerIdentity *pid)
Function signature for callbacks that are called when new backchannel message arrived.
static void disconnect_cb(void *cls, struct GNUNET_SERVICE_Client *client, void *internal_cls)
Callback called when Client disconnects.
static void peerstore_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start Peerstore.
#define LOG(kind,...)
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
static struct GNUNET_CADET_Handle * mh
Cadet handle.
Definition: gnunet-cadet.c:92
static int check_add_address(void *cls, const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
Address of our peer added.
#define GNUNET_MESSAGE_TYPE_DUMMY
Dummy messages for testing / benchmarking.
#define GNUNET_MQ_hd_fixed_size(name, code, str, ctx)
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_UPDATE
inform transport that a queue was updated
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
Definition: gnunet_mq_lib.h:67
struct GNUNET_SERVICE_Handle * GNUNET_SERVICE_start(const char *service_name, const struct GNUNET_CONFIGURATION_Handle *cfg, GNUNET_SERVICE_ConnectHandler connect_cb, GNUNET_SERVICE_DisconnectHandler disconnect_cb, void *cls, const struct GNUNET_MQ_MessageHandler *handlers)
Low-level function to start a service if the scheduler is already running.
Definition: service.c:1875
static char * peer_id
Option –peer.
Definition: gnunet-cadet.c:42
struct GNUNET_MQ_Handle * c_mq
Handle to the client.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_CONFIGURATION_Handle * GNUNET_CONFIGURATION_create(void)
Create a new configuration object.
enum GNUNET_TRANSPORT_CommunicatorCharacteristics c_characteristics
Characteristics of the communicator.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL_INCOMING
Transport signalling incoming backchannel message to a communicator.
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
static void handle_add_queue_message(void *cls, const struct GNUNET_TRANSPORT_AddQueueMessage *msg)
Handle new queue.
struct GNUNET_SERVICE_Handle * sh
Our service handle.
void(* GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback)(void *cls, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc, char *address_prefix)
Function signature for callbacks that are called when new communicators become available.
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_string(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, char **value)
Get a configuration value that should be a string.
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
#define GNUNET_MQ_check_boxed_message(m)
Insert code for a "check_" function that verifies that a given variable-length message received over ...
static struct GNUNET_ARM_Handle * h
Connection with ARM.
Definition: gnunet-arm.c:99
void(* GNUNET_SCHEDULER_TaskCallback)(void *cls)
Signature of the main function of a task.
GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback communicator_available_cb
Callback called when a new communicator connects.
#define _(String)
GNU gettext support macro.
Definition: platform.h:184
static void shutdown_resolver(void *cls)
Task run at shutdown to kill the resolver process.
Handle to a client that is connected to a service.
Definition: service.c:250
#define GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG
inform transport about an incoming message
void GNUNET_TRANSPORT_TESTING_transport_communicator_open_queue(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, const struct GNUNET_PeerIdentity *peer_id, const char *address)
Instruct communicator to open a queue.
uint32_t cs
An enum GNUNET_TRANSPORT_ConnectionStatus in NBO.
struct GNUNET_OS_Process * ps_proc
peerstore service process
#define GNUNET_MQ_msg_extra(mvar, esize, type)
Allocate an envelope, with extra space allocated after the space needed by the message struct...
Definition: gnunet_mq_lib.h:52
uint16_t type
The type of the message (GNUNET_MESSAGE_TYPE_XXXX), in big-endian format.
void GNUNET_TRANSPORT_TESTING_transport_communicator_send(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, GNUNET_SCHEDULER_TaskCallback cont, void *cont_cls, const void *payload, size_t payload_size)
Instruct communicator to send data.
#define GNUNET_MQ_check_zero_termination(m)
Insert code for a "check_" function that verifies that a given variable-length message received over ...
void * cls
Closure for mv and cb.
void GNUNET_MQ_notify_sent(struct GNUNET_MQ_Envelope *ev, GNUNET_SCHEDULER_TaskCallback cb, void *cb_cls)
Call a callback once the envelope has been sent, that is, sending it can not be canceled anymore...
Definition: mq.c:787
#define GNUNET_MQ_hd_var_size(name, code, str, ctx)
#define GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG_ACK
transport acknowledges processing an incoming message
static void resolver_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start Resolver.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * GNUNET_TRANSPORT_TESTING_transport_communicator_service_start(const char *service_name, const char *binary_name, const char *cfg_filename, const struct GNUNET_PeerIdentity *peer_id, GNUNET_TRANSPORT_TESTING_CommunicatorAvailableCallback communicator_available_cb, GNUNET_TRANSPORT_TESTING_AddAddressCallback add_address_cb, GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback queue_create_reply_cb, GNUNET_TRANSPORT_TESTING_AddQueueCallback add_queue_cb, GNUNET_TRANSPORT_TESTING_IncomingMessageCallback incoming_message_cb, GNUNET_TRANSPORT_TESTING_BackchannelCallback bc_cb, void *cb_cls)
Start communicator part of transport service and communicator.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP
inform transport that a queue was setup to talk to some peer
static void handle_queue_create_ok(void *cls, const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
Communicator informs that it tries to establish requested queue.
static void handle_queue_create_fail(void *cls, const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
Communicator informs that it wont try establishing requested queue.
functions and structures related to testing-tng
#define GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL
Tell transport that it should assist with exchanging a message between communicators.
struct GNUNET_OS_Process * resolver_proc
resolver service process
static void shutdown_statistics(void *cls)
Task run at shutdown to kill the statistics process.
static char * service_name
Option -s: service name (hash to get service descriptor)
Definition: gnunet-vpn.c:51
static void handle_incoming_msg(void *cls, const struct GNUNET_TRANSPORT_IncomingMessage *inc_msg)
Receive an incoming message.
struct GNUNET_SERVICE_Client * client
Handle to the client.
void GNUNET_CONFIGURATION_destroy(struct GNUNET_CONFIGURATION_Handle *cfg)
Destroy configuration object.
static int check_communicator_backchannel(void *cls, const struct GNUNET_TRANSPORT_CommunicatorBackchannel *msg)
Incoming message.
static void shutdown_communicator(void *cls)
Task run at shutdown to kill a communicator process.
void(* GNUNET_TRANSPORT_TESTING_IncomingMessageCallback)(void *cls, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, const char *payload, size_t payload_len)
Handle an incoming message.
GNUNET_TRANSPORT_TESTING_AddAddressCallback add_address_cb
Callback called when a new communicator connects.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG_ACK
communicator tells transports that message was sent
void GNUNET_SERVICE_stop(struct GNUNET_SERVICE_Handle *srv)
Stops a service that was started with GNUNET_SERVICE_start().
Definition: service.c:1908
struct GNUNET_TIME_Relative GNUNET_TIME_relative_ntoh(struct GNUNET_TIME_RelativeNBO a)
Convert relative time from network byte order.
Definition: time.c:641
static void transport_communicator_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start the communicator part of the transport service.
Message handler for a specific message type.
static void * connect_cb(void *cls, struct GNUNET_SERVICE_Client *client, struct GNUNET_MQ_Handle *mq)
Callback called when new Client (Communicator) connects.
When these flags are set, the child process will inherit stdout and stderr of the parent...
Definition: gnunet_os_lib.h:97
static void handle_communicator_backchannel(void *cls, const struct GNUNET_TRANSPORT_CommunicatorBackchannel *bc_msg)
Receive an incoming message.
struct GNUNET_CONFIGURATION_Handle * cfg
Handle to the configuration.
static void shutdown_peerstore(void *cls)
Task run at shutdown to kill the peerstore process.
struct GNUNET_MQ_Handle * c_mq
Handle to the client.
static unsigned int size
Size of the "table".
Definition: peer.c:67
char * GNUNET_HELLO_address_to_prefix(const char *address)
Given an address as a string, extract the prefix that identifies the communicator offering transmissi...
Definition: hello-ng.c:190
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * prev
Previous element inside a DLL.
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
GNUNET_TRANSPORT_TESTING_IncomingMessageCallback incoming_msg_cb
Callback called when a new communicator connects.
static int check_incoming_msg(void *cls, const struct GNUNET_TRANSPORT_IncomingMessage *msg)
Incoming message.
static void handle_update_queue_message(void *cls, const struct GNUNET_TRANSPORT_UpdateQueueMessage *msg)
Handle new queue.
static unsigned long long payload
How much data are we currently storing in the database?
#define GNUNET_memcmp(a, b)
Compare memory in a and b, where both must be of the same pointer type.
struct MyClient * prev
static void handle_communicator_available(void *cls, const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
Handle new communicator.
Handle to a message queue.
Definition: mq.c:85
static void statistics_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start Statistics.
The identity of the host (wraps the signing key of the peer).
#define GNUNET_TRANSPORT_QUEUE_LENGTH_UNLIMITED
Queue length.
static int check_add_queue_message(void *cls, const struct GNUNET_TRANSPORT_AddQueueMessage *aqm)
New queue became available.
static char * section_name
Name of section in configuration file to use for additional options.
Definition: gnunet-nat.c:40
#define GNUNET_MESSAGE_TYPE_TRANSPORT_NEW_COMMUNICATOR
Message sent to indicate to the transport which address prefix is supported by a communicator.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_FAIL
Response from communicator: address bogus, will not try to create queue.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * queue_tail
Tail of the DLL of queues associated with this communicator.
struct GNUNET_MQ_Handle * mq
Definition: 003.c:5
static void communicator_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, const char *binary_name)
Start the communicator.
#define GNUNET_log(kind,...)
static void nat_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start NAT.
char * GNUNET_OS_get_libexec_binary_path(const char *progname)
Given the name of a gnunet-helper, gnunet-service or gnunet-daemon binary, try to prefix it with the ...
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_yesno(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option)
Get a configuration value that should be in a set of "YES" or "NO".
#define GNUNET_MESSAGE_TYPE_TRANSPORT_ADD_ADDRESS
inform transport to add an address of this peer
struct GNUNET_MQ_Envelope * open_queue_env
Envelope to a message that requests the opening of the queue.
struct GNUNET_OS_Process * c_proc
Process of the communicator.
static void shutdown_service(void *cls)
Shut down the service.
Header for all communications.
GNUNET_TRANSPORT_TESTING_AddQueueCallback add_queue_cb
Callback called when a new communicator connects.
GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback queue_create_reply_cb
Callback called when a new communicator connects.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
Definition: mq.c:355
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * queue_head
Head of the DLL of queues associated with this communicator.
void(* GNUNET_TRANSPORT_TESTING_QueueCreateReplyCallback)(void *cls, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, int will_try)
Get informed about the success of a queue request.
GNUNET_TRANSPORT_TESTING_BackchannelCallback bc_cb
Backchannel callback.
static void handle_add_address(void *cls, const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
The communicator informs about an address.
static char * address
GNS address for this phone.
static void shutdown_nat(void *cls)
Task run at shutdown to kill communicator and clean up.
Should a pipe be used to send signals to the child?
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
#define GNUNET_MQ_handler_end()
End-marker for the handlers array.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * tc_h
Handle to the TransportCommunicator.
uint64_t GNUNET_ntohll(uint64_t n)
Convert unsigned 64-bit integer to host byte order.
Definition: common_endian.c:53
#define GNUNET_free(ptr)
Wrapper around free.
int GNUNET_OS_process_kill(struct GNUNET_OS_Process *proc, int sig)
Sends a signal to the process.
Definition: os_priority.c:225
Bandwidth allocation API for the transport service.
static int check_communicator_available(void *cls, const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
Check whether incoming msg indicating available communicator is correct.