GNUnet  0.11.x
transport-testing2.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"
31 #include "transport-testing2.h"
33 #include "gnunet_hello_lib.h"
34 #include "gnunet_signatures.h"
35 #include "transport.h"
36 
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 {
71 
76 
81 
85  char *cfg_filename;
86 
91 
97 
98 
103 
108 
113 
118 
123 
127  char *c_address;
128 
133 
138 
139  /* Callbacks + Closures */
145 
150 
155 
160 
165 
170 
175 
179  void *cb_cls;
180 
185 };
186 
187 
192 {
197 
206 
211 
215  uint32_t qid;
216 
220  uint64_t mid;
221 
225  uint32_t nt;
226 
230  uint32_t mtu;
231 
235  uint32_t cs;
236 
241 
246 };
247 
248 
253 {
254 };
255 
256 
266 static int
268  void *cls,
269  const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
270 {
271  uint16_t size;
272 
273  size = ntohs (msg->header.size) - sizeof(*msg);
274  if (0 == size)
275  return GNUNET_OK; /* receive-only communicator */
277  return GNUNET_OK;
278 }
279 
280 
289 static void
291  void *cls,
292  const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
293 {
294  struct MyClient *client = cls;
296  client->tc;
297  uint16_t size;
298  tc_h->c_mq = client->c_mq;
299 
300  size = ntohs (msg->header.size) - sizeof(*msg);
301  if (0 == size)
302  {
304  return; /* receive-only communicator */
305  }
306  tc_h->c_characteristics = ntohl (msg->cc);
307  tc_h->c_addr_prefix = GNUNET_strdup ((const char *) &msg[1]);
308  if (NULL != tc_h->communicator_available_cb)
309  {
310  LOG (GNUNET_ERROR_TYPE_DEBUG, "calling communicator_available_cb()\n");
311  tc_h->communicator_available_cb (tc_h->cb_cls,
312  tc_h,
313  tc_h->c_characteristics,
314  tc_h->c_addr_prefix);
315  }
317  LOG (GNUNET_ERROR_TYPE_DEBUG, "finished communicator_available_cb()\n");
318 
319 }
320 
321 
329 static int
331  const struct
332  GNUNET_TRANSPORT_CommunicatorBackchannel *msg)
333 {
334  // struct TransportClient *tc = cls;
335 
336  // if (CT_COMMUNICATOR != tc->type)
337  // {
338  // GNUNET_break (0);
339  // return GNUNET_SYSERR;
340  // }
341  // GNUNET_MQ_check_boxed_message (msg);
342  return GNUNET_OK;
343 }
344 
345 
354 static void
356  const struct
357  GNUNET_TRANSPORT_CommunicatorBackchannel *
358  bc_msg)
359 {
360  struct MyClient *client = cls;
362  client->tc;
364  struct GNUNET_MessageHeader *msg;
365  msg = (struct GNUNET_MessageHeader *) &bc_msg[1];
366  uint16_t isize = ntohs (msg->size);
367  const char *target_communicator = ((const char *) msg) + isize;
368  struct GNUNET_TRANSPORT_CommunicatorBackchannelIncoming *cbi;
369  struct GNUNET_MQ_Envelope *env;
370 
371 
372  if (tc_h->bc_enabled != GNUNET_YES)
373  {
375  return;
376  }
377  /* Find client providing this communicator */
378  /* Finally, deliver backchannel message to communicator */
380  "Delivering backchannel message of type %u to %s\n",
381  ntohs (msg->type),
382  target_communicator);
383  other_tc_h = tc_h->bc_cb (tc_h, msg, (struct
384  GNUNET_PeerIdentity*) &bc_msg->pid);
385  env = GNUNET_MQ_msg_extra (
386  cbi,
387  isize,
389  cbi->pid = bc_msg->pid;
390  memcpy (&cbi[1], msg, isize);
391 
392 
393  GNUNET_MQ_send (other_tc_h->c_mq, env);
395 }
396 
397 
405 static int
406 check_add_address (void *cls,
407  const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
408 {
409  // if (CT_COMMUNICATOR != tc->type)
410  // {
411  // GNUNET_break (0);
412  // return GNUNET_SYSERR;
413  // }
415  return GNUNET_OK;
416 }
417 
418 
427 static void
429  const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
430 {
431  struct MyClient *client = cls;
433  client->tc;
434  uint16_t size;
435  size = ntohs (msg->header.size) - sizeof(*msg);
436  if (0 == size)
437  return; /* receive-only communicator */
438  LOG (GNUNET_ERROR_TYPE_DEBUG, "received add address cb %u\n", size);
439  tc_h->c_address = GNUNET_strdup ((const char *) &msg[1]);
440  if (NULL != tc_h->add_address_cb)
441  {
442  LOG (GNUNET_ERROR_TYPE_DEBUG, "calling add_address_cb()\n");
443  tc_h->add_address_cb (tc_h->cb_cls,
444  tc_h,
445  tc_h->c_address,
446  GNUNET_TIME_relative_ntoh (msg->expiration),
447  msg->aid,
448  ntohl (msg->nt));
449  }
451 }
452 
453 
461 static int
463  const struct GNUNET_TRANSPORT_IncomingMessage *msg)
464 {
465  // struct TransportClient *tc = cls;
466 
467  // if (CT_COMMUNICATOR != tc->type)
468  // {
469  // GNUNET_break (0);
470  // return GNUNET_SYSERR;
471  // }
473  return GNUNET_OK;
474 }
475 
476 
485 static void
487  const struct GNUNET_TRANSPORT_IncomingMessage *inc_msg)
488 {
489  struct MyClient *client = cls;
491  client->tc;
492  struct GNUNET_MessageHeader *msg;
493  msg = (struct GNUNET_MessageHeader *) &inc_msg[1];
494  size_t payload_len = ntohs (msg->size) - sizeof (struct
497  "Incoming message from communicator!\n");
498 
499  if (NULL != tc_h->incoming_msg_cb)
500  {
501  tc_h->incoming_msg_cb (tc_h->cb_cls,
502  tc_h,
503  (char*) &msg[1],
504  payload_len);
505  }
506  else
507  {
509  "Incoming message from communicator but no handler!\n");
510  }
511  if (GNUNET_YES == ntohl (inc_msg->fc_on))
512  {
513  /* send ACK when done to communicator for flow control! */
514  struct GNUNET_MQ_Envelope *env;
515  struct GNUNET_TRANSPORT_IncomingMessageAck *ack;
516 
518  ack->reserved = htonl (0);
519  ack->fc_id = inc_msg->fc_id;
520  ack->sender = inc_msg->sender;
521  GNUNET_MQ_send (tc_h->c_mq, env);
522  }
523 
525 }
526 
527 
534 static void
536  const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
537 {
538  struct MyClient *client = cls;
540  client->tc;
541 
542  if (NULL != tc_h->queue_create_reply_cb)
543  {
544  tc_h->queue_create_reply_cb (tc_h->cb_cls, tc_h, GNUNET_YES);
545  }
547 }
548 
549 
559 static void
561  void *cls,
562  const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
563 {
564  struct MyClient *client = cls;
566  client->tc;
567 
568  if (NULL != tc_h->queue_create_reply_cb)
569  {
570  tc_h->queue_create_reply_cb (tc_h->cb_cls, tc_h, GNUNET_NO);
571  }
573 }
574 
575 
582 static int
584  const struct GNUNET_TRANSPORT_AddQueueMessage *aqm)
585 {
587  return GNUNET_OK;
588 }
589 
590 
599 static void
601  const struct GNUNET_TRANSPORT_AddQueueMessage *msg)
602 {
603  struct MyClient *client = cls;
605  client->tc;
607 
608  tc_queue = tc_h->queue_head;
609  if (NULL != tc_queue)
610  {
611  while (tc_queue->qid != msg->qid)
612  {
613  tc_queue = tc_queue->next;
614  }
615  }
616  else
617  {
618  tc_queue =
620  tc_queue->tc_h = tc_h;
621  tc_queue->qid = msg->qid;
622  tc_queue->peer_id = msg->receiver;
623  GNUNET_CONTAINER_DLL_insert (tc_h->queue_head, tc_h->queue_tail, tc_queue);
624  }
625  GNUNET_assert (tc_queue->qid == msg->qid);
626  GNUNET_assert (0 == GNUNET_memcmp (&tc_queue->peer_id, &msg->receiver));
627  tc_queue->nt = msg->nt;
628  tc_queue->mtu = msg->mtu;
629  tc_queue->cs = msg->cs;
630  if (NULL != tc_h->add_queue_cb)
631  {
632  tc_h->add_queue_cb (tc_h->cb_cls, tc_h, tc_queue);
633  }
635 }
636 
637 
643 static void
644 shutdown_service (void *cls)
645 {
646  struct GNUNET_SERVICE_Handle *h = cls;
647 
649 }
650 
651 
661 static void *
662 connect_cb (void *cls,
664  struct GNUNET_MQ_Handle *mq)
665 {
667  struct MyClient *new_c;
668 
669  LOG (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected to %p.\n",
670  client, tc_h);
671  new_c = GNUNET_new (struct MyClient);
672  new_c->client = client;
673  new_c->c_mq = mq;
674  new_c->tc = tc_h;
676  tc_h->client_tail,
677  new_c);
678 
679  if (NULL == tc_h->queue_head)
680  return new_c;
681  /* Iterate over queues. They are yet to be opened. Request opening. */
682  for (struct
684  tc_h->queue_head;
685  NULL != tc_queue_iter;
686  tc_queue_iter = tc_queue_iter->next)
687  {
688  if (NULL == tc_queue_iter->open_queue_env)
689  continue;
690  /* Send the previously created mq envelope to request the creation of the
691  * queue. */
692  GNUNET_MQ_send (tc_h->c_mq,
693  tc_queue_iter->open_queue_env);
694  tc_queue_iter->open_queue_env = NULL;
695  }
696  return new_c;
697 }
698 
699 
707 static void
708 disconnect_cb (void *cls,
710  void *internal_cls)
711 {
712  struct MyClient *cl = cls;
714 
715  for (cl = tc_h->client_head; NULL != cl; cl = cl->next)
716  {
717  if (cl->client != client)
718  continue;
720  tc_h->client_tail,
721  cl);
722  GNUNET_free (cl);
723  break;
724  }
725  LOG (GNUNET_ERROR_TYPE_DEBUG, "Client disconnected.\n");
726 }
727 
728 
735 static void
737  const struct GNUNET_TRANSPORT_SendMessageToAck *sma)
738 {
739  struct MyClient *client = cls;
741  // NOP
742 }
743 
744 
752 static void
755 {
756  struct GNUNET_MQ_MessageHandler mh[] = {
757  GNUNET_MQ_hd_var_size (communicator_available,
759  struct GNUNET_TRANSPORT_CommunicatorAvailableMessage,
760  tc_h),
761  GNUNET_MQ_hd_var_size (communicator_backchannel,
763  struct GNUNET_TRANSPORT_CommunicatorBackchannel,
764  tc_h),
765  GNUNET_MQ_hd_var_size (add_address,
767  struct GNUNET_TRANSPORT_AddAddressMessage,
768  tc_h),
769  // GNUNET_MQ_hd_fixed_size (del_address,
770  // GNUNET_MESSAGE_TYPE_TRANSPORT_DEL_ADDRESS,
771  // struct GNUNET_TRANSPORT_DelAddressMessage,
772  // NULL),
773  GNUNET_MQ_hd_var_size (incoming_msg,
775  struct GNUNET_TRANSPORT_IncomingMessage,
776  tc_h),
777  GNUNET_MQ_hd_fixed_size (queue_create_ok,
779  struct GNUNET_TRANSPORT_CreateQueueResponse,
780  tc_h),
781  GNUNET_MQ_hd_fixed_size (queue_create_fail,
783  struct GNUNET_TRANSPORT_CreateQueueResponse,
784  tc_h),
785  GNUNET_MQ_hd_var_size (add_queue_message,
787  struct GNUNET_TRANSPORT_AddQueueMessage,
788  tc_h),
789  // GNUNET_MQ_hd_fixed_size (del_queue_message,
790  // GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_TEARDOWN,
791  // struct GNUNET_TRANSPORT_DelQueueMessage,
792  // NULL),
793  GNUNET_MQ_hd_fixed_size (send_message_ack,
795  struct GNUNET_TRANSPORT_SendMessageToAck,
796  tc_h),
798  };
799 
800 
801  tc_h->sh = GNUNET_SERVICE_start ("transport",
802  tc_h->cfg,
803  &connect_cb,
804  &disconnect_cb,
805  tc_h,
806  mh);
807  GNUNET_assert (NULL != tc_h->sh);
808 }
809 
810 
816 static void
818 {
819  if (0 != GNUNET_OS_process_kill (proc, SIGTERM))
820  {
822  "Error shutting down communicator with SIGERM, trying SIGKILL\n");
823  if (0 != GNUNET_OS_process_kill (proc, SIGKILL))
824  {
826  "Error shutting down communicator with SIGERM and SIGKILL\n");
827  }
828  }
830 }
831 
832 
833 static void
835 {
836  struct GNUNET_OS_Process *proc = cls;
837  shutdown_process (proc);
838 }
839 
840 
846 static void
849  const char *binary_name)
850 {
851  char *binary;
852 
853  LOG (GNUNET_ERROR_TYPE_DEBUG, "communicator_start\n");
854  binary = GNUNET_OS_get_libexec_binary_path (binary_name);
857  NULL,
858  NULL,
859  NULL,
860  binary,
861  binary_name,
862  "-c",
863  tc_h->cfg_filename,
864  NULL);
865  if (NULL == tc_h->c_proc)
866  {
867  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start communicator!");
868  return;
869  }
870  LOG (GNUNET_ERROR_TYPE_INFO, "started communicator\n");
871  GNUNET_free (binary);
872 }
873 
874 
880 static void
881 shutdown_nat (void *cls)
882 {
883  struct GNUNET_OS_Process *proc = cls;
884  shutdown_process (proc);
885 }
886 
887 
892 static void
895 {
896  char *binary;
897 
898  LOG (GNUNET_ERROR_TYPE_DEBUG, "nat_start\n");
899  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-nat");
902  NULL,
903  NULL,
904  NULL,
905  binary,
906  "gnunet-service-nat",
907  "-c",
908  tc_h->cfg_filename,
909  NULL);
910  if (NULL == tc_h->nat_proc)
911  {
912  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start NAT!");
913  return;
914  }
915  LOG (GNUNET_ERROR_TYPE_INFO, "started NAT\n");
916  GNUNET_free (binary);
917 }
918 
919 
934  const char *service_name,
935  const char *binary_name,
936  const char *cfg_filename,
944  void *cb_cls)
945 {
947 
949  "Starting new transport/communicator combo with config %s\n",
950  cfg_filename);
951  tc_h =
953  tc_h->cfg_filename = GNUNET_strdup (cfg_filename);
954  tc_h->cfg = GNUNET_CONFIGURATION_create ();
955  if ((GNUNET_SYSERR == GNUNET_CONFIGURATION_load (tc_h->cfg, cfg_filename)))
956  {
958  _ ("Malformed configuration file `%s', exit ...\n"),
959  cfg_filename);
960  GNUNET_free (tc_h->cfg_filename);
962  GNUNET_free (tc_h);
963  return NULL;
964  }
966  "communicator-test",
967  "BACKCHANNEL_ENABLED");
971  tc_h->add_queue_cb = add_queue_cb;
972  tc_h->incoming_msg_cb = incoming_message_cb;
973  tc_h->bc_cb = bc_cb;
974  tc_h->cb_cls = cb_cls;
975 
976  /* Start communicator part of service */
978  /* Start NAT */
979  nat_start (tc_h);
980  /* Schedule start communicator */
981  communicator_start (tc_h,
982  binary_name);
983  return tc_h;
984 }
985 
986 
987 void
990 {
992  shutdown_service (tc_h->sh);
993  shutdown_nat (tc_h->nat_proc);
995  GNUNET_free (tc_h);
996 }
997 
998 
1006 void
1009  const struct GNUNET_PeerIdentity *peer_id,
1010  const char *address)
1011 {
1013  static uint32_t idgen;
1014  char *prefix;
1015  struct GNUNET_TRANSPORT_CreateQueue *msg;
1016  struct GNUNET_MQ_Envelope *env;
1017  size_t alen;
1018 
1019  tc_queue =
1021  tc_queue->tc_h = tc_h;
1022  prefix = GNUNET_HELLO_address_to_prefix (address);
1023  if (NULL == prefix)
1024  {
1025  GNUNET_break (0); /* We got an invalid address!? */
1026  GNUNET_free (tc_queue);
1027  return;
1028  }
1029  GNUNET_free (prefix);
1030  alen = strlen (address) + 1;
1031  env =
1033  msg->request_id = htonl (idgen++);
1034  tc_queue->qid = msg->request_id;
1035  msg->receiver = *peer_id;
1036  tc_queue->peer_id = *peer_id;
1037  memcpy (&msg[1], address, alen);
1038  if (NULL != tc_h->c_mq)
1039  {
1040  GNUNET_MQ_send (tc_h->c_mq, env);
1041  }
1042  else
1043  {
1044  tc_queue->open_queue_env = env;
1045  }
1046  GNUNET_CONTAINER_DLL_insert (tc_h->queue_head, tc_h->queue_tail, tc_queue);
1047 }
1048 
1049 
1059 void
1063  void *cont_cls,
1064  const void *payload,
1065  size_t payload_size)
1066 {
1067  struct GNUNET_MessageHeader *mh;
1068  struct GNUNET_TRANSPORT_SendMessageTo *msg;
1069  struct GNUNET_MQ_Envelope *env;
1070  size_t inbox_size;
1071 
1072  inbox_size = sizeof (struct GNUNET_MessageHeader) + payload_size;
1073  env = GNUNET_MQ_msg_extra (msg,
1074  inbox_size,
1076  msg->qid = htonl (tc_queue->qid);
1077  msg->mid = tc_queue->mid++;
1078  msg->receiver = tc_queue->peer_id;
1079  mh = (struct GNUNET_MessageHeader *) &msg[1];
1080  mh->size = htons (inbox_size);
1082  memcpy (&mh[1],
1083  payload,
1084  payload_size);
1085  if (NULL != cont)
1086  GNUNET_MQ_notify_sent (env,
1087  cont,
1088  cont_cls);
1089  GNUNET_MQ_send (tc_queue->tc_h->c_mq,
1090  env);
1091 }
GNUNET_TRANSPORT_CommunicatorCharacteristics
What characteristics does this communicator have?
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
functions and structures related to testing-tng
void GNUNET_TRANSPORT_TESTING_transport_communicator_service_stop(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * next
Next element inside a DLL.
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.
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.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_MSG
transport tells communicator it wants to transmit
static void handle_queue_create_fail(void *cls, const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
Communicator informs that it wont try establishing requested queue.
struct GNUNET_MessageHeader * msg
Definition: 005.c:2
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE
transport tells communicator it wants a queue
static void nat_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start NAT.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * tc
The TCH.
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
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.
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
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_CREATE_OK
Response from communicator: will try to create queue.
char * cfg_filename
File name of configuration file.
static void handle_communicator_available(void *cls, const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
Handle new communicator.
void(* GNUNET_TRANSPORT_TESTING_AddQueueCallback)(void *cls, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue)
Handle opening of queue.
struct GNUNET_SCHEDULER_Task * ts_shutdown_task
Task that will be run on shutdown to stop and clean transport service.
static void shutdown_communicator(void *cls)
#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
struct GNUNET_OS_Process * GNUNET_OS_start_process(int pipe_control, 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:687
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.
static void handle_incoming_msg(void *cls, const struct GNUNET_TRANSPORT_IncomingMessage *inc_msg)
Receive an incoming message.
#define GNUNET_MESSAGE_TYPE_DUMMY
Dummy messages for testing / benchmarking.
#define GNUNET_MQ_hd_fixed_size(name, code, str, ctx)
#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
#define GNUNET_NO
Definition: gnunet_common.h:86
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:83
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * GNUNET_TRANSPORT_TESTING_transport_communicator_service_start(const char *service_name, const char *binary_name, const char *cfg_filename, 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.
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.
static void shutdown_nat(void *cls)
Task run at shutdown to kill communicator and clean up.
#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...
struct GNUNET_SERVICE_Handle * sh
Our service handle.
#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.
struct GNUNET_OS_Process * nat_proc
NAT process.
int GNUNET_CONFIGURATION_load(struct GNUNET_CONFIGURATION_Handle *cfg, const char *filename)
Load configuration.
#define _(String)
GNU gettext support macro.
Definition: platform.h:180
Handle to a client that is connected to a service.
Definition: service.c:250
char * c_addr_prefix
Specifies supported addresses.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG
inform transport about an incoming message
uint32_t cs
An enum GNUNET_TRANSPORT_ConnectionStatus in NBO.
static void handle_add_address(void *cls, const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
The communicator informs about an address.
#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.
static int check_add_queue_message(void *cls, const struct GNUNET_TRANSPORT_AddQueueMessage *aqm)
New queue became available.
#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.
static int check_communicator_available(void *cls, const struct GNUNET_TRANSPORT_CommunicatorAvailableMessage *msg)
Check whether incoming msg indicating available communicator is correct.
static int check_add_address(void *cls, const struct GNUNET_TRANSPORT_AddAddressMessage *msg)
Address of our peer added.
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:781
#define GNUNET_MQ_hd_var_size(name, code, str, ctx)
#define GNUNET_MESSAGE_TYPE_TRANSPORT_INCOMING_MSG_ACK
transport acknowledges processing an incoming message
#define GNUNET_MESSAGE_TYPE_TRANSPORT_QUEUE_SETUP
inform transport that a queue was setup to talk to some peer
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 shutdown_process(struct GNUNET_OS_Process *proc)
Task run at shutdown to kill communicator and clean up.
#define GNUNET_MESSAGE_TYPE_TRANSPORT_COMMUNICATOR_BACKCHANNEL
Tell transport that it should assist with exchanging a message between communicators.
static char * service_name
Option -s: service name (hash to get service descriptor)
Definition: gnunet-vpn.c:51
struct GNUNET_SERVICE_Client * client
Handle to the client.
void GNUNET_CONFIGURATION_destroy(struct GNUNET_CONFIGURATION_Handle *cfg)
Destroy configuration object.
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
static void handle_queue_create_ok(void *cls, const struct GNUNET_TRANSPORT_CreateQueueResponse *msg)
Communicator informs that it tries to establish requested queue.
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
Message handler for a specific message type.
When these flags are set, the child process will inherit stdout and stderr of the parent...
Definition: gnunet_os_lib.h:97
static int check_incoming_msg(void *cls, const struct GNUNET_TRANSPORT_IncomingMessage *msg)
Incoming message.
static int check_communicator_backchannel(void *cls, const struct GNUNET_TRANSPORT_CommunicatorBackchannel *msg)
Incoming message.
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.
struct GNUNET_CONFIGURATION_Handle * cfg
Handle to the configuration.
#define GNUNET_SYSERR
Definition: gnunet_common.h:84
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:191
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * prev
Previous element inside a DLL.
static void handle_send_message_ack(void *cls, const struct GNUNET_TRANSPORT_SendMessageToAck *sma)
Message was transmitted.
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
GNUNET_TRANSPORT_TESTING_IncomingMessageCallback incoming_msg_cb
Callback called when a new communicator connects.
static void communicator_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h, const char *binary_name)
Start the communicator.
static unsigned long long payload
How much data are we currently storing in the database?
uint32_t nt
An enum GNUNET_NetworkType in NBO.
#define GNUNET_memcmp(a, b)
Compare memory in a and b, where both must be of the same pointer type.
struct MyClient * prev
struct GNUNET_SERVICE_Handle * tsh
Handle to the transport service.
Handle to a message queue.
Definition: mq.c:85
uint32_t mtu
Maximum transmission unit, in NBO.
static void handle_communicator_backchannel(void *cls, const struct GNUNET_TRANSPORT_CommunicatorBackchannel *bc_msg)
Receive an incoming message.
The identity of the host (wraps the signing key of the peer).
void GNUNET_TRANSPORT_TESTING_transport_communicator_send(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue *tc_queue, GNUNET_SCHEDULER_TaskCallback cont, void *cont_cls, const void *payload, size_t payload_size)
Instruct communicator to send data.
static void handle_add_queue_message(void *cls, const struct GNUNET_TRANSPORT_AddQueueMessage *msg)
Handle new queue.
configuration data
Definition: configuration.c:84
#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
#define GNUNET_log(kind,...)
Entry in list of pending tasks.
Definition: scheduler.c:134
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 ...
static void disconnect_cb(void *cls, struct GNUNET_SERVICE_Client *client, void *internal_cls)
Callback called when Client disconnects.
#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.
Header for all communications.
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.
GNUNET_TRANSPORT_TESTING_AddQueueCallback add_queue_cb
Callback called when a new communicator connects.
#define GNUNET_YES
Definition: gnunet_common.h:85
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:353
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorQueue * queue_head
Head of the DLL of queues associated with this communicator.
struct GNUNET_SCHEDULER_Task * c_shutdown_task
Task that will be run on shutdown to stop and clean communicator.
GNUNET_TRANSPORT_TESTING_BackchannelCallback bc_cb
Backchannel callback.
static void shutdown_service(void *cls)
Shut down the service.
static void transport_communicator_start(struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle *tc_h)
Start the communicator part of the transport service.
int 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".
static char * address
GNS address for this phone.
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2240
#define LOG(kind,...)
#define GNUNET_MQ_handler_end()
End-marker for the handlers array.
struct GNUNET_TRANSPORT_TESTING_TransportCommunicatorHandle * tc_h
Handle to the TransportCommunicator.
char * c_address
Specifies supported addresses.
#define GNUNET_free(ptr)
Wrapper around free.
Queue of a communicator and some context.
int GNUNET_OS_process_kill(struct GNUNET_OS_Process *proc, int sig)
Sends a signal to the process.
Definition: os_priority.c:225
static void * connect_cb(void *cls, struct GNUNET_SERVICE_Client *client, struct GNUNET_MQ_Handle *mq)
Callback called when new Client (Communicator) connects.
Bandwidth allocation API for the transport service.