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
 121 int notify (void *cls,
 122             size_t *data_size,
 123             void *data)
 124 {
 125
 126   char text[] = "ping";
 127   *data_size = strlen(text)+1;
 128   GNUNET_memcpy(data, text, *data_size);
 129
 130   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 131               "Member sents message to origin: %s\n", text);
 132
 133   return GNUNET_YES;
 134 }
 135
 136
 137 static void
 138 member_join_decision (void *cls,
 139                       int is_admitted,
 140                       const struct GNUNET_PeerIdentity *peer,
 141                       uint16_t relay_count,
 142                       const struct GNUNET_PeerIdentity *relays,
 143                       const struct GNUNET_MessageHeader *join_msg)
 144 {
 145   struct GNUNET_MULTICAST_MemberTransmitHandle *req;
 146
 147   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 148               "Member received a decision from origin: %s\n", (GNUNET_YES == is_admitted)?"accepted":"rejected");
 149
 150   if (GNUNET_YES == is_admitted)
 151   {
 152     req = GNUNET_MULTICAST_member_to_origin (member,
 153                                              0,
 154                                              notify,
 155                                              NULL);
 156   }
 157 }
 158
 159
 160 static void
 161 member_message (void *cls,
 162                 const struct GNUNET_MULTICAST_MessageHeader *msg)
 163 {
 164   if (0 != strncmp ("pong", (char *)&msg[1], 4))
 165   {
 166     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "member did not receive pong\n");
 167     result = GNUNET_SYSERR;
 168     GNUNET_SCHEDULER_shutdown ();
 169   }
 170
 171   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 172               "member receives: %s\n", (char *)&msg[1]);
 173
 174   // Testcase ends here.
 175   result = GNUNET_YES;
 176   GNUNET_SCHEDULER_shutdown ();
 177 }
 178
 179
 180 static void
 181 origin_join_request (void *cls,
 182                  const struct GNUNET_CRYPTO_EcdsaPublicKey *member_pub_key,
 183                  const struct GNUNET_MessageHeader *join_msg,
 184                  struct GNUNET_MULTICAST_JoinHandle *jh)
 185 {
 186   struct GNUNET_MessageHeader *join_resp;
 187
 188   uint8_t data_size = ntohs (join_msg->size);
 189
 190   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 191               "origin got a join request...\n");
 192   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 193               "origin receives: '%s'\n", (char *)&join_msg[1]);
 194
 195   char data[] = "Come in!";
 196   data_size = strlen (data) + 1;
 197   join_resp = GNUNET_malloc (sizeof (join_resp) + data_size);
 198   join_resp->size = htons (sizeof (join_resp) + data_size);
 199   join_resp->type = htons (123);
 200   GNUNET_memcpy (&join_resp[1], data, data_size);
 201
 202   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 203               "origin sends: '%s'\n", data);
 204
 205   GNUNET_MULTICAST_join_decision (jh,
 206                                   GNUNET_YES,
 207                                   0,
 208                                   NULL,
 209                                   join_resp);
 210
 211   result = GNUNET_OK;
 212 }
 213
 214
 215 int
 216 origin_notify (void *cls,
 217                size_t *data_size,
 218                void *data)
 219 {
 220   char text[] = "pong";
 221   *data_size = strlen(text)+1;
 222   memcpy(data, text, *data_size);
 223
 224   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin sends (to all): %s\n", text);
 225
 226   return GNUNET_YES;
 227 }
 228
 229
 230 static void
 231 origin_request (void *cls,
 232                 const struct GNUNET_MULTICAST_RequestHeader *req)
 233 {
 234   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin receives: %s\n", (char *)&req[1]);
 235
 236   if (0 != strncmp ("ping", (char *)&req[1], 4))
 237     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "origin didn't reveice a correct request");
 238
 239   GNUNET_MULTICAST_origin_to_all (origin,
 240                                   0,
 241                                   0,
 242                                   origin_notify,
 243                                   NULL);
 244 }
 245
 246
 247 static void
 248 origin_message (void *cls,
 249                 const struct GNUNET_MULTICAST_MessageHeader *msg)
 250 {
 251   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin message msg\n");
 252 }
 253
 254
 255 static void
 256 service_connect1 (void *cls,
 257                   struct GNUNET_TESTBED_Operation *op,
 258                   void *ca_result,
 259                   const char *emsg)
 260 {
 261   member = ca_result;
 262
 263   if (NULL == member)
 264   {
 265     result = GNUNET_SYSERR;
 266     GNUNET_SCHEDULER_shutdown ();
 267   }
 268   else
 269   {
 270     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Connected to multicast service of member\n");
 271   }
 272 }
 273
 274
 275 static void
 276 multicast_da1 (void *cls,
 277                void * op_result)
 278 {
 279   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 280               "Member parting from multicast group\n");
 281
 282   GNUNET_MULTICAST_member_part (member, NULL, NULL);
 283 }
 284
 285
 286 static void *
 287 multicast_ca1 (void *cls,
 288                const struct GNUNET_CONFIGURATION_Handle *cfg)
 289 {
 290   struct GNUNET_MessageHeader *join_msg;
 291
 292   // Get members keys
 293   member_key = GNUNET_CRYPTO_ecdsa_key_create ();
 294   GNUNET_CRYPTO_ecdsa_key_get_public (member_key, &member_pub_key);
 295
 296   char data[] = "Hi, can I enter?";
 297   uint8_t data_size = strlen (data) + 1;
 298   join_msg = GNUNET_malloc (sizeof (join_msg) + data_size);
 299   join_msg->size = htons (sizeof (join_msg) + data_size);
 300   join_msg->type = htons (123);
 301   GNUNET_memcpy (&join_msg[1], data, data_size);
 302
 303   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 304               "Members tries to join multicast group\n");
 305
 306   return GNUNET_MULTICAST_member_join (cfg,
 307                                        &group_pub_key,
 308                                        member_key,
 309                                        peer_id[0],
 310                                        0,
 311                                        NULL,
 312                                        join_msg, /* join message */
 313                                        member_join_request,
 314                                        member_join_decision,
 315                                        NULL, /* no test for member_replay_frag */
 316                                        NULL, /* no test for member_replay_msg */
 317                                        member_message,
 318                                        NULL);
 319 }
 320
 321
 322 static void
 323 peer_information_cb (void *cls,
 324                      struct GNUNET_TESTBED_Operation *op,
 325                      const struct GNUNET_TESTBED_PeerInformation *pinfo,
 326                      const char *emsg)
 327 {
 328   int i = (int) (long) cls;
 329
 330   if (NULL == pinfo)
 331   {
 332     result = GNUNET_SYSERR;
 333     GNUNET_SCHEDULER_shutdown ();
 334   }
 335
 336   peer_id[i] = pinfo->result.id;
 337
 338   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 339               "Got peer information of %s (%s)\n", (0==i)?"origin":"member" ,GNUNET_i2s(pinfo->result.id));
 340
 341   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 342               "Create member peer\n");
 343
 344   if (0 == i)
 345   {
 346     /* connect to multicast service of member */
 347     op1 = GNUNET_TESTBED_service_connect (NULL,                    /* Closure for operation */
 348                                           peers[1],                /* The peer whose service to connect to */
 349                                           "multicast",             /* The name of the service */
 350                                           service_connect1,   /* callback to call after a handle to service
 351                                                                  is opened */
 352                                           NULL,                    /* closure for the above callback */
 353                                           multicast_ca1,      /* callback to call with peer's configuration;
 354                                                                  this should open the needed service connection */
 355                                           multicast_da1,     /* callback to be called when closing the
 356                                                                 opened service connection */
 357                                           NULL);                   /* closure for the above two callbacks */
 358   }
 359 }
 360
 361
 362 /**
 363  * Test logic of peer "0" being origin starts here.
 364  *
 365  * @param cls closure, for the example: NULL
 366  * @param op should be equal to "dht_op"
 367  * @param ca_result result of the connect operation, the
 368  *        connection to the DHT service
 369  * @param emsg error message, if testbed somehow failed to
 370  *        connect to the DHT.
 371  */
 372 static void
 373 service_connect0 (void *cls,
 374                   struct GNUNET_TESTBED_Operation *op,
 375                   void *ca_result,
 376                   const char *emsg)
 377 {
 378   origin = ca_result;
 379
 380   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 381               "Connected to multicast service of origin\n");
 382
 383   // Get GNUnet identity of origin
 384   pi_op0 = GNUNET_TESTBED_peer_get_information (peers[0],
 385                                                GNUNET_TESTBED_PIT_IDENTITY,
 386                                                peer_information_cb,
 387                                                (void *) 0);
 388   // Get GNUnet identity of member
 389   pi_op1 = GNUNET_TESTBED_peer_get_information (peers[1],
 390                                                GNUNET_TESTBED_PIT_IDENTITY,
 391                                                peer_information_cb,
 392                                                (void *) 1);
 393
 394   /* Connection to service successful. Here we'd usually do something with
 395    * the service. */
 396   result = GNUNET_OK;
 397   //GNUNET_SCHEDULER_shutdown (); /* Also kills the testbed */
 398 }
 399
 400
 401
 402 /**
 403  * Function run when service multicast has started and is providing us
 404  * with a configuration file.
 405  */
 406 static void *
 407 multicast_ca0 (void *cls,
 408                const struct GNUNET_CONFIGURATION_Handle *cfg)
 409 {
 410   group_key = GNUNET_CRYPTO_eddsa_key_create ();
 411   GNUNET_CRYPTO_eddsa_key_get_public (group_key, &group_pub_key);
 412
 413   return GNUNET_MULTICAST_origin_start (cfg,
 414                                         group_key,
 415                                         0,
 416                                         origin_join_request,
 417                                         NULL, /* no test for origin_replay_frag */
 418                                         NULL, /* no test for origin_replay_msg */
 419                                         origin_request,
 420                                         origin_message,
 421                                         NULL);
 422 }
 423
 424 static void
 425 multicast_da0 (void *cls,
 426                void *op_result)
 427 {
 428   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 429               "Origin closes multicast group\n");
 430
 431   GNUNET_MULTICAST_origin_stop (origin, NULL, NULL);
 432 }
 433
 434
 435 /**
 436  * Main function inovked from TESTBED once all of the
 437  * peers are up and running.  This one then connects
 438  * just to the multicast service of peer 0 and 1.
 439  * Peer 0 is going to be origin.
 440  * Peer 1 is going to be one member.
 441  * Origin will start a multicast group and the member will try to join it.
 442  * After that we execute some multicast test.
 443  *
 444  * @param cls closure
 445  * @param h the run handle
 446  * @param peers started peers for the test
 447  * @param num_peers size of the 'peers' array
 448  * @param links_succeeded number of links between peers that were created
 449  * @param links_failed number of links testbed was unable to establish
 450  */
 451 static void
 452 testbed_master (void *cls,
 453      struct GNUNET_TESTBED_RunHandle *h,
 454      unsigned int num_peers,
 455      struct GNUNET_TESTBED_Peer **p,
 456      unsigned int links_succeeded,
 457      unsigned int links_failed)
 458 {
 459   /* Testbed is ready with peers running and connected in a pre-defined overlay
 460      topology (FIXME)  */
 461   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 462               "Connected to testbed_master()\n");
 463
 464   peers = p;
 465
 466   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 467               "Create origin peer\n");
 468   op0 = GNUNET_TESTBED_service_connect (NULL,                    /* Closure for operation */
 469                                         peers[0],                /* The peer whose service to connect to */
 470                                         "multicast",             /* The name of the service */
 471                                         service_connect0,   /* callback to call after a handle to service
 472                                                                is opened */
 473                                         NULL,                    /* closure for the above callback */
 474                                         multicast_ca0,      /* callback to call with peer's configuration;
 475                                                                this should open the needed service connection */
 476                                         multicast_da0,     /* callback to be called when closing the
 477                                                               opened service connection */
 478                                         NULL);                   /* closure for the above two callbacks */
 479
 480   GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); /* Schedule a new task on shutdown */
 481
 482   /* Schedule the shutdown task with a delay of a few Seconds */
 483   timeout_tid = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 50),
 484                                               &timeout_task, NULL);
 485 }
 486
 487
 488 int
 489 main (int argc, char *argv[])
 490 {
 491   int ret;
 492
 493   result = GNUNET_SYSERR;
 494   ret = GNUNET_TESTBED_test_run
 495       ("test-multicast-2peers",  /* test case name */
 496        "test_multicast.conf", /* template configuration */
 497        NUM_PEERS,       /* number of peers to start */
 498        0LL, /* Event mask - set to 0 for no event notifications */
 499        NULL, /* Controller event callback */
 500        NULL, /* Closure for controller event callback */
 501        testbed_master, /* continuation callback to be called when testbed setup is complete */
 502        NULL); /* Closure for the test_master callback */
 503   if ( (GNUNET_OK != ret) || (GNUNET_OK != result) )
 504     return 1;
 505   return 0;
 506 }
 507
 508
 509 /* end of test_multicast_2peers.c */