src/multicast/test_multicast_2peers.c

   1 /*
   2  * This file is part of GNUnet
   3  * Copyright (C) 2013 GNUnet e.V.
   4  *
   5  * GNUnet is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published
   7  * by the Free Software Foundation; either version 3, or (at your
   8  * 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  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with GNUnet; see the file COPYING.  If not, write to the
  17  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 /**
  22  * @file multicast/test_multicast_2peers.c
  23  * @brief Tests for the Multicast API with two peers doing the ping
  24  *        pong test.
  25  * @author xrs
  26  */
  27
  28 #include <inttypes.h>
  29
  30 #include "platform.h"
  31 #include "gnunet_crypto_lib.h"
  32 #include "gnunet_common.h"
  33 #include "gnunet_util_lib.h"
  34 #include "gnunet_testbed_service.h"
  35 #include "gnunet_multicast_service.h"
  36
  37 #define NUM_PEERS 2
  38
  39 static struct GNUNET_TESTBED_Operation *op0;
  40 static struct GNUNET_TESTBED_Operation *op1;
  41 static struct GNUNET_TESTBED_Operation *pi_op0;
  42 static struct GNUNET_TESTBED_Operation *pi_op1;
  43
  44 static struct GNUNET_TESTBED_Peer **peers;
  45 const struct GNUNET_PeerIdentity *peer_id[2];
  46
  47 static struct GNUNET_SCHEDULER_Task *timeout_tid;
  48
  49 static struct GNUNET_MULTICAST_Origin *origin;
  50 static struct GNUNET_MULTICAST_Member *member;
  51
  52 struct GNUNET_CRYPTO_EddsaPrivateKey *group_key;
  53 struct GNUNET_CRYPTO_EddsaPublicKey group_pub_key;
  54
  55 struct GNUNET_CRYPTO_EcdsaPrivateKey *member_key;
  56 struct GNUNET_CRYPTO_EcdsaPublicKey member_pub_key;
  57
  58 /**
  59  * Global result for testcase.
  60  */
  61 static int result;
  62
  63
  64 /**
  65  * Function run on CTRL-C or shutdown (i.e. success/timeout/etc.).
  66  * Cleans up.
  67  */
  68 static void
  69 shutdown_task (void *cls)
  70 {
  71   if (NULL != op0)
  72   {
  73     GNUNET_TESTBED_operation_done (op0);
  74     op0 = NULL;
  75   }
  76   if (NULL != op1)
  77   {
  78     GNUNET_TESTBED_operation_done (op1);
  79     op1 = NULL;
  80   }
  81   if (NULL != pi_op0)
  82   {
  83     GNUNET_TESTBED_operation_done (pi_op0);
  84     pi_op0 = NULL;
  85   }
  86   if (NULL != pi_op1)
  87   {
  88     GNUNET_TESTBED_operation_done (pi_op1);
  89     pi_op1 = NULL;
  90   }
  91   if (NULL != timeout_tid)
  92     {
  93       GNUNET_SCHEDULER_cancel (timeout_tid);
  94       timeout_tid = NULL;
  95     }
  96 }
  97
  98
  99 static void
 100 timeout_task (void *cls)
 101 {
 102   GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 103               "Timeout!\n");
 104   result = GNUNET_SYSERR;
 105   GNUNET_SCHEDULER_shutdown ();
 106 }
 107
 108
 109 static void
 110 member_join_request (void *cls,
 111                      const struct GNUNET_CRYPTO_EcdsaPublicKey *member_pub_key,
 112                      const struct GNUNET_MessageHeader *join_msg,
 113                      struct GNUNET_MULTICAST_JoinHandle *jh)
 114 {
 115   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 116               "Member sent a join request.\n");
 117
 118 }
 119
 120 int notify (void *cls,
 121             size_t *data_size,
 122             void *data)
 123 {
 124
 125   char text[] = "ping";
 126   *data_size = strlen(text)+1;
 127   GNUNET_memcpy(data, text, *data_size);
 128
 129   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 130               "Member sents message to origin: %s\n", text);
 131
 132   return GNUNET_YES;
 133 }
 134
 135
 136 static void
 137 member_join_decision (void *cls,
 138                       int is_admitted,
 139                       const struct GNUNET_PeerIdentity *peer,
 140                       uint16_t relay_count,
 141                       const struct GNUNET_PeerIdentity *relays,
 142                       const struct GNUNET_MessageHeader *join_msg)
 143 {
 144   struct GNUNET_MULTICAST_MemberTransmitHandle *req;
 145
 146   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 147               "Member received a decision from origin: %s\n", (GNUNET_YES == is_admitted)?"accepted":"rejected");
 148
 149   if (GNUNET_YES == is_admitted)
 150   {
 151     req = GNUNET_MULTICAST_member_to_origin (member,
 152                                              0,
 153                                              notify,
 154                                              NULL);
 155   }
 156 }
 157
 158 static void
 159 member_message (void *cls,
 160                 const struct GNUNET_MULTICAST_MessageHeader *msg)
 161 {
 162   if (0 != strncmp ("pong", (char *)&msg[1], 4))
 163   {
 164     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "member did not receive pong\n");
 165     result = GNUNET_SYSERR;
 166     GNUNET_SCHEDULER_shutdown ();
 167   }
 168
 169   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 170               "member receives: %s\n", (char *)&msg[1]);
 171
 172   // Testcase ends here.
 173   result = GNUNET_YES;
 174   GNUNET_SCHEDULER_shutdown ();
 175 }
 176
 177 static void
 178 origin_join_request (void *cls,
 179                  const struct GNUNET_CRYPTO_EcdsaPublicKey *member_pub_key,
 180                  const struct GNUNET_MessageHeader *join_msg,
 181                  struct GNUNET_MULTICAST_JoinHandle *jh)
 182 {
 183   struct GNUNET_MessageHeader *join_resp;
 184
 185   uint8_t data_size = ntohs (join_msg->size);
 186
 187   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 188               "origin got a join request...\n");
 189   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 190               "origin receives: '%s'\n", (char *)&join_msg[1]);
 191
 192   char data[] = "Come in!";
 193   data_size = strlen (data) + 1;
 194   join_resp = GNUNET_malloc (sizeof (join_resp) + data_size);
 195   join_resp->size = htons (sizeof (join_resp) + data_size);
 196   join_resp->type = htons (123);
 197   GNUNET_memcpy (&join_resp[1], data, data_size);
 198
 199   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 200               "origin sends: '%s'\n", data);
 201
 202   GNUNET_MULTICAST_join_decision (jh,
 203                                   GNUNET_YES,
 204                                   0,
 205                                   NULL,
 206                                   join_resp);
 207
 208   result = GNUNET_OK;
 209 }
 210
 211 int
 212 origin_notify (void *cls,
 213                size_t *data_size,
 214                void *data)
 215 {
 216   char text[] = "pong";
 217   *data_size = strlen(text)+1;
 218   memcpy(data, text, *data_size);
 219
 220   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin sends (to all): %s\n", text);
 221
 222   return GNUNET_YES;
 223 }
 224
 225
 226 static void
 227 origin_request (void *cls,
 228                 const struct GNUNET_MULTICAST_RequestHeader *req)
 229 {
 230   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin receives: %s\n", (char *)&req[1]);
 231
 232   if (0 != strncmp ("ping", (char *)&req[1], 4))
 233     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "origin didn't reveice a correct request");
 234
 235   GNUNET_MULTICAST_origin_to_all (origin,
 236                                   0,
 237                                   0,
 238                                   origin_notify,
 239                                   NULL);
 240 }
 241
 242 static void
 243 origin_message (void *cls,
 244                 const struct GNUNET_MULTICAST_MessageHeader *msg)
 245 {
 246   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin message msg\n");
 247 }
 248
 249
 250 static void
 251 service_connect1 (void *cls,
 252                   struct GNUNET_TESTBED_Operation *op,
 253                   void *ca_result,
 254                   const char *emsg)
 255 {
 256   member = ca_result;
 257
 258   if (NULL != member)
 259   {
 260     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Connected to multicast service of member\n");
 261   }
 262   else
 263   {
 264     result = GNUNET_SYSERR;
 265     GNUNET_SCHEDULER_shutdown ();
 266   }
 267 }
 268
 269 static void
 270 multicast_da1 (void *cls,
 271                void * op_result)
 272 {
 273   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 274               "Member parting from multicast group\n");
 275
 276   GNUNET_MULTICAST_member_part (member, NULL, NULL);
 277 }
 278
 279
 280 static void *
 281 multicast_ca1 (void *cls,
 282                const struct GNUNET_CONFIGURATION_Handle *cfg)
 283 {
 284   struct GNUNET_MessageHeader *join_msg;
 285
 286   // Get members keys
 287   member_key = GNUNET_CRYPTO_ecdsa_key_create ();
 288   GNUNET_CRYPTO_ecdsa_key_get_public (member_key, &member_pub_key);
 289
 290   char data[] = "Hi, can I enter?";
 291   uint8_t data_size = strlen (data) + 1;
 292   join_msg = GNUNET_malloc (sizeof (join_msg) + data_size);
 293   join_msg->size = htons (sizeof (join_msg) + data_size);
 294   join_msg->type = htons (123);
 295   GNUNET_memcpy (&join_msg[1], data, data_size);
 296
 297   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 298               "Members tries to join multicast group\n");
 299
 300   return GNUNET_MULTICAST_member_join (cfg,
 301                                        &group_pub_key,
 302                                        member_key,
 303                                        peer_id[0],
 304                                        0,
 305                                        NULL,
 306                                        join_msg, /* join message */
 307                                        member_join_request,
 308                                        member_join_decision,
 309                                        NULL, /* no test for member_replay_frag */
 310                                        NULL, /* no test for member_replay_msg */
 311                                        member_message,
 312                                        NULL);
 313 }
 314
 315
 316 static void
 317 peer_information_cb (void *cls,
 318                      struct GNUNET_TESTBED_Operation *op,
 319                      const struct GNUNET_TESTBED_PeerInformation *pinfo,
 320                      const char *emsg)
 321 {
 322   int i = (int) (long) cls;
 323
 324   if (NULL == pinfo)
 325   {
 326     result = GNUNET_SYSERR;
 327     GNUNET_SCHEDULER_shutdown ();
 328   }
 329
 330   peer_id[i] = pinfo->result.id;
 331
 332   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 333               "Got peer information of %s (%s)\n", (0==i)?"origin":"member" ,GNUNET_i2s(pinfo->result.id));
 334
 335   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 336               "Create member peer\n");
 337
 338   if (0 == i)
 339   {
 340     /* connect to multicast service of member */
 341     op1 = GNUNET_TESTBED_service_connect (NULL,                    /* Closure for operation */
 342                                           peers[1],                /* The peer whose service to connect to */
 343                                           "multicast",             /* The name of the service */
 344                                           service_connect1,   /* callback to call after a handle to service
 345                                                                  is opened */
 346                                           NULL,                    /* closure for the above callback */
 347                                           multicast_ca1,      /* callback to call with peer's configuration;
 348                                                                  this should open the needed service connection */
 349                                           multicast_da1,     /* callback to be called when closing the
 350                                                                 opened service connection */
 351                                           NULL);                   /* closure for the above two callbacks */
 352     }
 353 }
 354
 355 /**
 356  * Test logic of peer "0" being origin starts here.
 357  *
 358  * @param cls closure, for the example: NULL
 359  * @param op should be equal to "dht_op"
 360  * @param ca_result result of the connect operation, the
 361  *        connection to the DHT service
 362  * @param emsg error message, if testbed somehow failed to
 363  *        connect to the DHT.
 364  */
 365 static void
 366 service_connect0 (void *cls,
 367                   struct GNUNET_TESTBED_Operation *op,
 368                   void *ca_result,
 369                   const char *emsg)
 370 {
 371   origin = ca_result;
 372
 373   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 374               "Connected to multicast service of origin\n");
 375
 376   // Get GNUnet identity of origin
 377   pi_op0 = GNUNET_TESTBED_peer_get_information (peers[0],
 378                                                GNUNET_TESTBED_PIT_IDENTITY,
 379                                                peer_information_cb,
 380                                                (void *) 0);
 381   // Get GNUnet identity of member
 382   pi_op1 = GNUNET_TESTBED_peer_get_information (peers[1],
 383                                                GNUNET_TESTBED_PIT_IDENTITY,
 384                                                peer_information_cb,
 385                                                (void *) 1);
 386
 387   /* Connection to service successful. Here we'd usually do something with
 388    * the service. */
 389   result = GNUNET_OK;
 390   //GNUNET_SCHEDULER_shutdown (); /* Also kills the testbed */
 391 }
 392
 393
 394
 395 /**
 396  * Function run when service multicast has started and is providing us
 397  * with a configuration file.
 398  */
 399 static void *
 400 multicast_ca0 (void *cls,
 401                const struct GNUNET_CONFIGURATION_Handle *cfg)
 402 {
 403   group_key = GNUNET_CRYPTO_eddsa_key_create ();
 404   GNUNET_CRYPTO_eddsa_key_get_public (group_key, &group_pub_key);
 405
 406   return GNUNET_MULTICAST_origin_start (cfg,
 407                                         group_key,
 408                                         0,
 409                                         origin_join_request,
 410                                         NULL, /* no test for origin_replay_frag */
 411                                         NULL, /* no test for origin_replay_msg */
 412                                         origin_request,
 413                                         origin_message,
 414                                         NULL);
 415 }
 416
 417 static void
 418 multicast_da0 (void *cls,
 419                void *op_result)
 420 {
 421   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 422               "Origin closes multicast group\n");
 423
 424   GNUNET_MULTICAST_origin_stop (origin, NULL, NULL);
 425 }
 426
 427
 428 /**
 429  * Main function inovked from TESTBED once all of the
 430  * peers are up and running.  This one then connects
 431  * just to the multicast service of peer 0 and 1.
 432  * Peer 0 is going to be origin.
 433  * Peer 1 is going to be one member.
 434  * Origin will start a multicast group and the member will try to join it.
 435  * After that we execute some multicast test.
 436  *
 437  * @param cls closure
 438  * @param h the run handle
 439  * @param peers started peers for the test
 440  * @param num_peers size of the 'peers' array
 441  * @param links_succeeded number of links between peers that were created
 442  * @param links_failed number of links testbed was unable to establish
 443  */
 444 static void
 445 testbed_master (void *cls,
 446      struct GNUNET_TESTBED_RunHandle *h,
 447      unsigned int num_peers,
 448      struct GNUNET_TESTBED_Peer **p,
 449      unsigned int links_succeeded,
 450      unsigned int links_failed)
 451 {
 452   /* Testbed is ready with peers running and connected in a pre-defined overlay
 453      topology (FIXME)  */
 454   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 455               "Connected to testbed_master()\n");
 456
 457   peers = p;
 458
 459   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 460               "Create origin peer\n");
 461   op0 = GNUNET_TESTBED_service_connect (NULL,                    /* Closure for operation */
 462                                         peers[0],                /* The peer whose service to connect to */
 463                                         "multicast",             /* The name of the service */
 464                                         service_connect0,   /* callback to call after a handle to service
 465                                                                is opened */
 466                                         NULL,                    /* closure for the above callback */
 467                                         multicast_ca0,      /* callback to call with peer's configuration;
 468                                                                this should open the needed service connection */
 469                                         multicast_da0,     /* callback to be called when closing the
 470                                                               opened service connection */
 471                                         NULL);                   /* closure for the above two callbacks */
 472
 473   GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); /* Schedule a new task on shutdown */
 474
 475   /* Schedule the shutdown task with a delay of a few Seconds */
 476   timeout_tid = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 50),
 477                                               &timeout_task, NULL);
 478 }
 479
 480
 481 int
 482 main (int argc, char *argv[])
 483 {
 484   int ret;
 485
 486   result = GNUNET_SYSERR;
 487   ret = GNUNET_TESTBED_test_run
 488       ("test-multicast-multipeer",  /* test case name */
 489        "test_multicast.conf", /* template configuration */
 490        NUM_PEERS,       /* number of peers to start */
 491        0LL, /* Event mask - set to 0 for no event notifications */
 492        NULL, /* Controller event callback */
 493        NULL, /* Closure for controller event callback */
 494        testbed_master, /* continuation callback to be called when testbed setup is complete */
 495        NULL); /* Closure for the test_master callback */
 496   if ( (GNUNET_OK != ret) || (GNUNET_OK != result) )
 497     return 1;
 498   return 0;
 499 }
 500
 501 /* end of test_multicast_multipeer.c */