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 static int
 122 notify (void *cls,
 123         size_t *data_size,
 124         void *data)
 125 {
 126
 127   char text[] = "ping";
 128   *data_size = strlen(text)+1;
 129   GNUNET_memcpy(data, text, *data_size);
 130
 131   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 132               "Member sents message to origin: %s\n", text);
 133
 134   return GNUNET_YES;
 135 }
 136
 137
 138 static void
 139 member_join_decision (void *cls,
 140                       int is_admitted,
 141                       const struct GNUNET_PeerIdentity *peer,
 142                       uint16_t relay_count,
 143                       const struct GNUNET_PeerIdentity *relays,
 144                       const struct GNUNET_MessageHeader *join_msg)
 145 {
 146   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 147               "Member received a decision from origin: %s\n",
 148               (GNUNET_YES == is_admitted)
 149               ? "accepted"
 150               : "rejected");
 151
 152   if (GNUNET_YES == is_admitted)
 153   {
 154     struct GNUNET_MULTICAST_MemberTransmitHandle *req;
 155
 156     // FIXME: move to MQ-style API!
 157     req = GNUNET_MULTICAST_member_to_origin (member,
 158                                              0,
 159                                              &notify,
 160                                              NULL);
 161   }
 162 }
 163
 164
 165 static void
 166 member_message (void *cls,
 167                 const struct GNUNET_MULTICAST_MessageHeader *msg)
 168 {
 169   if (0 != strncmp ("pong", (char *)&msg[1], 4))
 170   {
 171     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "member did not receive pong\n");
 172     result = GNUNET_SYSERR;
 173     GNUNET_SCHEDULER_shutdown ();
 174   }
 175
 176   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 177               "member receives: %s\n", (char *)&msg[1]);
 178
 179   // Testcase ends here.
 180   result = GNUNET_YES;
 181   GNUNET_SCHEDULER_shutdown ();
 182 }
 183
 184 static void
 185 origin_join_request (void *cls,
 186                  const struct GNUNET_CRYPTO_EcdsaPublicKey *member_pub_key,
 187                  const struct GNUNET_MessageHeader *join_msg,
 188                  struct GNUNET_MULTICAST_JoinHandle *jh)
 189 {
 190   struct GNUNET_MessageHeader *join_resp;
 191
 192   uint8_t data_size = ntohs (join_msg->size);
 193
 194   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 195               "origin got a join request...\n");
 196   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 197               "origin receives: '%s'\n", (char *)&join_msg[1]);
 198
 199   const char data[] = "Come in!";
 200   data_size = strlen (data) + 1;
 201   join_resp = GNUNET_malloc (sizeof (join_resp) + data_size);
 202   join_resp->size = htons (sizeof (join_resp) + data_size);
 203   join_resp->type = htons (123);
 204   GNUNET_memcpy (&join_resp[1], data, data_size);
 205
 206   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 207               "origin sends: '%s'\n", data);
 208
 209   GNUNET_MULTICAST_join_decision (jh,
 210                                   GNUNET_YES,
 211                                   0,
 212                                   NULL,
 213                                   join_resp);
 214   GNUNET_free (join_resp);
 215   result = GNUNET_OK;
 216 }
 217
 218 int
 219 origin_notify (void *cls,
 220                size_t *data_size,
 221                void *data)
 222 {
 223   char text[] = "pong";
 224   *data_size = strlen(text)+1;
 225   memcpy(data, text, *data_size);
 226
 227   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin sends (to all): %s\n", text);
 228
 229   return GNUNET_YES;
 230 }
 231
 232
 233 static void
 234 origin_request (void *cls,
 235                 const struct GNUNET_MULTICAST_RequestHeader *req)
 236 {
 237   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin receives: %s\n", (char *)&req[1]);
 238
 239   if (0 != strncmp ("ping", (char *)&req[1], 4))
 240     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "origin didn't reveice a correct request");
 241
 242   GNUNET_MULTICAST_origin_to_all (origin,
 243                                   0,
 244                                   0,
 245                                   origin_notify,
 246                                   NULL);
 247 }
 248
 249 static void
 250 origin_message (void *cls,
 251                 const struct GNUNET_MULTICAST_MessageHeader *msg)
 252 {
 253   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "origin message msg\n");
 254 }
 255
 256
 257 static void
 258 service_connect1 (void *cls,
 259                   struct GNUNET_TESTBED_Operation *op,
 260                   void *ca_result,
 261                   const char *emsg)
 262 {
 263   member = ca_result;
 264
 265   if (NULL != member)
 266   {
 267     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Connected to multicast service of member\n");
 268   }
 269   else
 270   {
 271     result = GNUNET_SYSERR;
 272     GNUNET_SCHEDULER_shutdown ();
 273   }
 274 }
 275
 276 static void
 277 multicast_da1 (void *cls,
 278                void * op_result)
 279 {
 280   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 281               "Member parting from multicast group\n");
 282
 283   GNUNET_MULTICAST_member_part (member, NULL, NULL);
 284 }
 285
 286
 287 static void *
 288 multicast_ca1 (void *cls,
 289                const struct GNUNET_CONFIGURATION_Handle *cfg)
 290 {
 291   struct GNUNET_MessageHeader *join_msg;
 292   void *ret;
 293
 294   // Get members keys
 295   member_key = GNUNET_CRYPTO_ecdsa_key_create ();
 296   GNUNET_CRYPTO_ecdsa_key_get_public (member_key, &member_pub_key);
 297
 298   char data[] = "Hi, can I enter?";
 299   uint8_t data_size = strlen (data) + 1;
 300   join_msg = GNUNET_malloc (sizeof (join_msg) + data_size);
 301   join_msg->size = htons (sizeof (join_msg) + data_size);
 302   join_msg->type = htons (123);
 303   GNUNET_memcpy (&join_msg[1], data, data_size);
 304
 305   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 306               "Members tries to join multicast group\n");
 307
 308   ret = GNUNET_MULTICAST_member_join (cfg,
 309                                        &group_pub_key,
 310                                        member_key,
 311                                        peer_id[0],
 312                                        0,
 313                                        NULL,
 314                                        join_msg, /* join message */
 315                                        member_join_request,
 316                                        member_join_decision,
 317                                        NULL, /* no test for member_replay_frag */
 318                                        NULL, /* no test for member_replay_msg */
 319                                        member_message,
 320                                        NULL);
 321   GNUNET_free (join_msg);
 322   return ret;
 323 }
 324
 325
 326 static void
 327 peer_information_cb (void *cls,
 328                      struct GNUNET_TESTBED_Operation *op,
 329                      const struct GNUNET_TESTBED_PeerInformation *pinfo,
 330                      const char *emsg)
 331 {
 332   int i = (int) (long) cls;
 333
 334   if (NULL == pinfo)
 335   {
 336     result = GNUNET_SYSERR;
 337     GNUNET_SCHEDULER_shutdown ();
 338   }
 339
 340   peer_id[i] = pinfo->result.id;
 341
 342   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 343               "Got peer information of %s (%s)\n", (0==i)?"origin":"member" ,GNUNET_i2s(pinfo->result.id));
 344
 345   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 346               "Create member peer\n");
 347
 348   if (0 == i)
 349   {
 350     /* connect to multicast service of member */
 351     op1 = GNUNET_TESTBED_service_connect (NULL,                    /* Closure for operation */
 352                                           peers[1],                /* The peer whose service to connect to */
 353                                           "multicast",             /* The name of the service */
 354                                           service_connect1,   /* callback to call after a handle to service
 355                                                                  is opened */
 356                                           NULL,                    /* closure for the above callback */
 357                                           multicast_ca1,      /* callback to call with peer's configuration;
 358                                                                  this should open the needed service connection */
 359                                           multicast_da1,     /* callback to be called when closing the
 360                                                                 opened service connection */
 361                                           NULL);                   /* closure for the above two callbacks */
 362     }
 363 }
 364
 365 /**
 366  * Test logic of peer "0" being origin starts here.
 367  *
 368  * @param cls closure, for the example: NULL
 369  * @param op should be equal to "dht_op"
 370  * @param ca_result result of the connect operation, the
 371  *        connection to the DHT service
 372  * @param emsg error message, if testbed somehow failed to
 373  *        connect to the DHT.
 374  */
 375 static void
 376 service_connect0 (void *cls,
 377                   struct GNUNET_TESTBED_Operation *op,
 378                   void *ca_result,
 379                   const char *emsg)
 380 {
 381   origin = ca_result;
 382
 383   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 384               "Connected to multicast service of origin\n");
 385
 386   // Get GNUnet identity of origin
 387   pi_op0 = GNUNET_TESTBED_peer_get_information (peers[0],
 388                                                GNUNET_TESTBED_PIT_IDENTITY,
 389                                                peer_information_cb,
 390                                                (void *) 0);
 391   // Get GNUnet identity of member
 392   pi_op1 = GNUNET_TESTBED_peer_get_information (peers[1],
 393                                                GNUNET_TESTBED_PIT_IDENTITY,
 394                                                peer_information_cb,
 395                                                (void *) 1);
 396
 397   /* Connection to service successful. Here we'd usually do something with
 398    * the service. */
 399   result = GNUNET_OK;
 400   //GNUNET_SCHEDULER_shutdown (); /* Also kills the testbed */
 401 }
 402
 403
 404
 405 /**
 406  * Function run when service multicast has started and is providing us
 407  * with a configuration file.
 408  */
 409 static void *
 410 multicast_ca0 (void *cls,
 411                const struct GNUNET_CONFIGURATION_Handle *cfg)
 412 {
 413   group_key = GNUNET_CRYPTO_eddsa_key_create ();
 414   GNUNET_CRYPTO_eddsa_key_get_public (group_key, &group_pub_key);
 415
 416   return GNUNET_MULTICAST_origin_start (cfg,
 417                                         group_key,
 418                                         0,
 419                                         origin_join_request,
 420                                         NULL, /* no test for origin_replay_frag */
 421                                         NULL, /* no test for origin_replay_msg */
 422                                         origin_request,
 423                                         origin_message,
 424                                         NULL);
 425 }
 426
 427 static void
 428 multicast_da0 (void *cls,
 429                void *op_result)
 430 {
 431   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 432               "Origin closes multicast group\n");
 433
 434   GNUNET_MULTICAST_origin_stop (origin, NULL, NULL);
 435 }
 436
 437
 438 /**
 439  * Main function inovked from TESTBED once all of the
 440  * peers are up and running.  This one then connects
 441  * just to the multicast service of peer 0 and 1.
 442  * Peer 0 is going to be origin.
 443  * Peer 1 is going to be one member.
 444  * Origin will start a multicast group and the member will try to join it.
 445  * After that we execute some multicast test.
 446  *
 447  * @param cls closure
 448  * @param h the run handle
 449  * @param peers started peers for the test
 450  * @param num_peers size of the 'peers' array
 451  * @param links_succeeded number of links between peers that were created
 452  * @param links_failed number of links testbed was unable to establish
 453  */
 454 static void
 455 testbed_master (void *cls,
 456      struct GNUNET_TESTBED_RunHandle *h,
 457      unsigned int num_peers,
 458      struct GNUNET_TESTBED_Peer **p,
 459      unsigned int links_succeeded,
 460      unsigned int links_failed)
 461 {
 462   /* Testbed is ready with peers running and connected in a pre-defined overlay
 463      topology (FIXME)  */
 464   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 465               "Connected to testbed_master()\n");
 466
 467   peers = p;
 468
 469   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 470               "Create origin peer\n");
 471   op0 = GNUNET_TESTBED_service_connect (NULL,                    /* Closure for operation */
 472                                         peers[0],                /* The peer whose service to connect to */
 473                                         "multicast",             /* The name of the service */
 474                                         service_connect0,   /* callback to call after a handle to service
 475                                                                is opened */
 476                                         NULL,                    /* closure for the above callback */
 477                                         multicast_ca0,      /* callback to call with peer's configuration;
 478                                                                this should open the needed service connection */
 479                                         multicast_da0,     /* callback to be called when closing the
 480                                                               opened service connection */
 481                                         NULL);                   /* closure for the above two callbacks */
 482
 483   GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); /* Schedule a new task on shutdown */
 484
 485   /* Schedule the shutdown task with a delay of a few Seconds */
 486   timeout_tid = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 50),
 487                                               &timeout_task, NULL);
 488 }
 489
 490
 491 int
 492 main (int argc, char *argv[])
 493 {
 494   int ret;
 495
 496   result = GNUNET_SYSERR;
 497   ret = GNUNET_TESTBED_test_run
 498       ("test-multicast-multipeer",  /* test case name */
 499        "test_multicast.conf", /* template configuration */
 500        NUM_PEERS,       /* number of peers to start */
 501        0LL, /* Event mask - set to 0 for no event notifications */
 502        NULL, /* Controller event callback */
 503        NULL, /* Closure for controller event callback */
 504        testbed_master, /* continuation callback to be called when testbed setup is complete */
 505        NULL); /* Closure for the test_master callback */
 506   if ( (GNUNET_OK != ret) || (GNUNET_OK != result) )
 507     return 1;
 508   return 0;
 509 }
 510
 511 /* end of test_multicast_multipeer.c */