src/core/test_core_api_preferences.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
   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., 59 Temple Place - Suite 330,
  18      Boston, MA 02111-1307, USA.
  19 */
  20 /**
  21  * @file core/test_core_api_preferences.c
  22  * @brief testcase for core_api.c's GNUNET_CORE_change_preference
  23  */
  24 #include "platform.h"
  25 #include "gnunet_common.h"
  26 #include "gnunet_arm_service.h"
  27 #include "gnunet_core_service.h"
  28 #include "gnunet_getopt_lib.h"
  29 #include "gnunet_os_lib.h"
  30 #include "gnunet_program_lib.h"
  31 #include "gnunet_scheduler_lib.h"
  32 #include "gnunet_transport_service.h"
  33
  34 #define VERBOSE GNUNET_NO
  35
  36 #define START_ARM GNUNET_YES
  37
  38 #define MTYPE 12345
  39
  40 struct PeerContext
  41 {
  42   struct GNUNET_CONFIGURATION_Handle *cfg;
  43   struct GNUNET_CORE_Handle *ch;
  44   struct GNUNET_PeerIdentity id;
  45   struct GNUNET_TRANSPORT_Handle *th;
  46   struct GNUNET_MessageHeader *hello;
  47   int connect_status;
  48 #if START_ARM
  49   struct GNUNET_OS_Process *arm_proc;
  50 #endif
  51 };
  52
  53 static struct PeerContext p1;
  54
  55 static struct PeerContext p2;
  56
  57 static GNUNET_SCHEDULER_TaskIdentifier err_task;
  58
  59 static int ok;
  60
  61 #if VERBOSE
  62 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
  63 #else
  64 #define OKPP do { ok++; } while (0)
  65 #endif
  66
  67 static struct GNUNET_CORE_InformationRequestContext *irc;
  68
  69 static struct GNUNET_CORE_TransmitHandle *th;
  70
  71 static GNUNET_SCHEDULER_TaskIdentifier irc_task;
  72
  73 static GNUNET_SCHEDULER_TaskIdentifier ask_task;
  74
  75 static unsigned int total_reserve = 5;
  76
  77
  78
  79 static void
  80 terminate_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  81 {
  82 #if VERBOSE
  83   fprintf(stderr, "Regular shutdown\n");
  84 #endif
  85   GNUNET_assert (ok == 6);
  86   GNUNET_assert (NULL == irc);
  87   GNUNET_CORE_disconnect (p1.ch);
  88   GNUNET_CORE_disconnect (p2.ch);
  89   GNUNET_TRANSPORT_disconnect (p1.th);
  90   GNUNET_TRANSPORT_disconnect (p2.th);
  91   ok = 0;
  92 }
  93
  94
  95 static void
  96 terminate_task_error (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  97 {
  98   err_task = GNUNET_SCHEDULER_NO_TASK;
  99 #if VERBOSE
 100   fprintf(stderr, "ENDING ANGRILY %u\n", ok);
 101 #endif
 102   GNUNET_break (0);
 103   if (NULL != irc)
 104     {
 105       GNUNET_CORE_peer_change_preference_cancel (irc);
 106       irc = NULL;
 107     }
 108   if (GNUNET_SCHEDULER_NO_TASK != irc_task)
 109     {
 110       GNUNET_SCHEDULER_cancel (irc_task);
 111       irc_task = GNUNET_SCHEDULER_NO_TASK;
 112     }
 113   if (GNUNET_SCHEDULER_NO_TASK != ask_task)
 114     {
 115       GNUNET_SCHEDULER_cancel (ask_task);
 116       ask_task = GNUNET_SCHEDULER_NO_TASK;
 117     }
 118   GNUNET_CORE_disconnect (p1.ch);
 119   GNUNET_CORE_disconnect (p2.ch);
 120   GNUNET_TRANSPORT_disconnect (p1.th);
 121   GNUNET_TRANSPORT_disconnect (p2.th);
 122   ok = 42;
 123 }
 124
 125
 126 static size_t
 127 transmit_ready (void *cls, size_t size, void *buf)
 128 {
 129   struct PeerContext *p = cls;
 130   struct GNUNET_MessageHeader *m;
 131
 132   th = NULL;
 133   GNUNET_assert (ok == 4);
 134   OKPP;
 135   GNUNET_assert (p == &p1);
 136   GNUNET_assert (buf != NULL);
 137   m = (struct GNUNET_MessageHeader *) buf;
 138   m->type = htons (MTYPE);
 139   m->size = htons (sizeof (struct GNUNET_MessageHeader));
 140   err_task =
 141     GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 120),
 142                                   &terminate_task_error, NULL);
 143
 144   return sizeof (struct GNUNET_MessageHeader);
 145 }
 146
 147 static void
 148 preference_cb (void *cls,
 149                const struct
 150                GNUNET_PeerIdentity *peer,
 151                struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
 152                int32_t amount,
 153                struct GNUNET_TIME_Relative res_delay,
 154                uint64_t preference);
 155
 156 static void
 157 do_reserve (void *cls,
 158             const struct GNUNET_SCHEDULER_TaskContext *tc)
 159 {
 160   struct PeerContext *pc = cls;
 161
 162   irc_task = GNUNET_SCHEDULER_NO_TASK;
 163   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
 164     {
 165       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 166                   "Aborted during attempt to request reservation\n");
 167       return;
 168     }
 169   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 170               "Requesting reservatin of 32k from core in 1s!\n");
 171   irc = GNUNET_CORE_peer_change_preference (p1.ch,
 172                                             &p2.id,
 173                                             GNUNET_TIME_UNIT_SECONDS,
 174                                             GNUNET_BANDWIDTH_VALUE_MAX,
 175                                             1000000 /* bandwidth for 1s */,
 176                                             0,
 177                                             &preference_cb,
 178                                             pc);
 179 }
 180
 181 static void
 182 preference_cb (void *cls,
 183                const struct
 184                GNUNET_PeerIdentity *peer,
 185                struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
 186                int32_t amount,
 187                struct GNUNET_TIME_Relative res_delay,
 188                uint64_t preference)
 189 {
 190   struct PeerContext *pc = cls;
 191
 192   irc = NULL;
 193   if (0 == amount)
 194     {
 195       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 196                   "Delaying reservation request by %llu ms!\n",
 197                   (unsigned long long) res_delay.rel_value);
 198       irc_task = GNUNET_SCHEDULER_add_delayed (res_delay,
 199                                                &do_reserve, pc);
 200       return;
 201     }
 202   total_reserve--;
 203   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 204               "Reservation done!\n");
 205   if (total_reserve > 0)
 206     {
 207       irc_task = GNUNET_SCHEDULER_add_now (&do_reserve, pc);
 208       return;
 209     }
 210   GNUNET_SCHEDULER_cancel (err_task);
 211   err_task = GNUNET_SCHEDULER_NO_TASK;
 212   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 213               "Asking core (1) for transmission to peer `%4s'\n",
 214               GNUNET_i2s (&p2.id));
 215   if (NULL == (th = GNUNET_CORE_notify_transmit_ready (p1.ch,
 216                                                        GNUNET_YES,
 217                                                        0,
 218                                                        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 45),
 219                                                        &p2.id,
 220                                                        sizeof (struct GNUNET_MessageHeader),
 221                                                        &transmit_ready, &p1)))
 222     {
 223       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 224                   "RECEIVED NULL when asking core (1) for transmission to peer `%4s'\n",
 225                   GNUNET_i2s (&p2.id));
 226     }
 227 }
 228
 229
 230 static void
 231 connect_notify (void *cls,
 232                 const struct GNUNET_PeerIdentity *peer,
 233                 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 234 {
 235   struct PeerContext *pc = cls;
 236
 237   if (0 == memcmp (&pc->id,
 238                    peer,
 239                    sizeof (struct GNUNET_PeerIdentity)))
 240     return;
 241   GNUNET_assert (pc->connect_status == 0);
 242   pc->connect_status = 1;
 243   if (pc == &p1)
 244     {
 245       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 246                   "Encrypted connection established to peer `%4s'\n",
 247                   GNUNET_i2s (peer));
 248       if (GNUNET_SCHEDULER_NO_TASK != ask_task)
 249         {
 250           GNUNET_SCHEDULER_cancel (ask_task);
 251           ask_task = GNUNET_SCHEDULER_NO_TASK;
 252         }
 253       GNUNET_SCHEDULER_cancel (err_task);
 254       err_task =
 255         GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 120),
 256                                       &terminate_task_error, NULL);
 257       irc_task = GNUNET_SCHEDULER_add_now (&do_reserve, pc);
 258     }
 259 }
 260
 261
 262 static void
 263 disconnect_notify (void *cls,
 264                    const struct GNUNET_PeerIdentity *peer)
 265 {
 266   struct PeerContext *pc = cls;
 267
 268   if (0 == memcmp (&pc->id,
 269                    peer,
 270                    sizeof (struct GNUNET_PeerIdentity)))
 271     return;
 272   pc->connect_status = 0;
 273   if (GNUNET_SCHEDULER_NO_TASK != irc_task)
 274     {
 275       GNUNET_SCHEDULER_cancel (irc_task);
 276       irc_task = GNUNET_SCHEDULER_NO_TASK;
 277     }
 278   if (0 == memcmp (peer, &p1.id, sizeof (struct GNUNET_PeerIdentity)))
 279     {
 280       if (irc != NULL)
 281         {
 282           GNUNET_CORE_peer_change_preference_cancel (irc);
 283           irc = NULL;
 284         }
 285       if (th != NULL)
 286         {
 287           GNUNET_CORE_notify_transmit_ready_cancel (th);
 288           th = NULL;
 289         }
 290     }
 291   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 292               "Encrypted connection to `%4s' cut\n",
 293               GNUNET_i2s (peer));
 294 }
 295
 296
 297 static int
 298 inbound_notify (void *cls,
 299                 const struct GNUNET_PeerIdentity *other,
 300                 const struct GNUNET_MessageHeader *message,
 301                 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 302 {
 303   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 304               "Core provides inbound data from `%4s'.\n", GNUNET_i2s (other));
 305   return GNUNET_OK;
 306 }
 307
 308
 309 static int
 310 outbound_notify (void *cls,
 311                  const struct GNUNET_PeerIdentity *other,
 312                  const struct GNUNET_MessageHeader *message,
 313                  const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 314 {
 315   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 316               "Core notifies about outbound data for `%4s'.\n",
 317               GNUNET_i2s (other));
 318   return GNUNET_OK;
 319 }
 320
 321
 322
 323 static int
 324 process_mtype (void *cls,
 325                const struct GNUNET_PeerIdentity *peer,
 326                const struct GNUNET_MessageHeader *message,
 327                const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 328 {
 329   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 330               "Receiving message from `%4s'.\n", GNUNET_i2s (peer));
 331   GNUNET_assert (ok == 5);
 332   OKPP;
 333   GNUNET_SCHEDULER_cancel (err_task);
 334   err_task = GNUNET_SCHEDULER_NO_TASK;
 335   GNUNET_SCHEDULER_add_now (&terminate_task, NULL);
 336   return GNUNET_OK;
 337 }
 338
 339
 340 static struct GNUNET_CORE_MessageHandler handlers[] = {
 341   {&process_mtype, MTYPE, sizeof (struct GNUNET_MessageHeader)},
 342   {NULL, 0, 0}
 343 };
 344
 345
 346
 347 static void
 348 ask_connect_task (void *cls,
 349                   const struct GNUNET_SCHEDULER_TaskContext *tc)
 350 {
 351   ask_task =
 352     GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 353                                   &ask_connect_task, NULL);
 354   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 355               "Asking core (1) AGAIN to connect to peer `%4s'\n",
 356               GNUNET_i2s (&p2.id));
 357   GNUNET_CORE_peer_request_connect (p1.ch,
 358                                     &p2.id,
 359                                     NULL, NULL);
 360 }
 361
 362
 363 static void
 364 init_notify (void *cls,
 365              struct GNUNET_CORE_Handle *server,
 366              const struct GNUNET_PeerIdentity *my_identity,
 367              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
 368 {
 369   struct PeerContext *p = cls;
 370
 371   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 372               "Core connection to `%4s' established\n",
 373               GNUNET_i2s (my_identity));
 374   GNUNET_assert (server != NULL);
 375   p->id = *my_identity;
 376   p->ch = server;
 377   if (cls == &p1)
 378     {
 379       GNUNET_assert (ok == 2);
 380       OKPP;
 381       /* connect p2 */
 382       GNUNET_CORE_connect (p2.cfg, 1,
 383                            &p2,
 384                            &init_notify,
 385                            &connect_notify,
 386                            &disconnect_notify,
 387                            NULL,
 388                            &inbound_notify,
 389                            GNUNET_YES,
 390                            &outbound_notify, GNUNET_YES, handlers);
 391     }
 392   else
 393     {
 394       GNUNET_assert (ok == 3);
 395       OKPP;
 396       GNUNET_assert (cls == &p2);
 397       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 398                   "Asking core (1) to connect to peer `%4s'\n",
 399                   GNUNET_i2s (&p2.id));
 400       err_task =
 401         GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60),
 402                                       &terminate_task_error, NULL);
 403       if (GNUNET_SCHEDULER_NO_TASK != ask_task)
 404         GNUNET_SCHEDULER_cancel (ask_task);
 405       ask_task =
 406         GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 407                                       &ask_connect_task, NULL);
 408       GNUNET_CORE_peer_request_connect (p1.ch,
 409                                         &p2.id,
 410                                         NULL, NULL);
 411     }
 412 }
 413
 414
 415 static void
 416 process_hello (void *cls,
 417                const struct GNUNET_MessageHeader *message)
 418 {
 419   struct PeerContext *p = cls;
 420
 421   GNUNET_TRANSPORT_get_hello_cancel (p->th, &process_hello, p);
 422   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 423               "Received (my) `%s' from transport service\n",
 424               "HELLO");
 425   GNUNET_assert (message != NULL);
 426   p->hello = GNUNET_malloc (ntohs (message->size));
 427   memcpy (p->hello, message, ntohs (message->size));
 428   if ((p == &p1) && (p2.th != NULL))
 429     GNUNET_TRANSPORT_offer_hello (p2.th, message, NULL, NULL);
 430   if ((p == &p2) && (p1.th != NULL))
 431     GNUNET_TRANSPORT_offer_hello (p1.th, message, NULL, NULL);
 432
 433   if ((p == &p1) && (p2.hello != NULL))
 434     GNUNET_TRANSPORT_offer_hello (p1.th, p2.hello, NULL, NULL);
 435   if ((p == &p2) && (p1.hello != NULL))
 436     GNUNET_TRANSPORT_offer_hello (p2.th, p1.hello, NULL, NULL);
 437 }
 438
 439
 440
 441 static void
 442 setup_peer (struct PeerContext *p, const char *cfgname)
 443 {
 444   p->cfg = GNUNET_CONFIGURATION_create ();
 445 #if START_ARM
 446   p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
 447                                         "gnunet-service-arm",
 448 #if VERBOSE
 449                                         "-L", "DEBUG",
 450 #endif
 451                                         "-c", cfgname, NULL);
 452 #endif
 453   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 454   p->th = GNUNET_TRANSPORT_connect (p->cfg, NULL, p, NULL, NULL, NULL);
 455   GNUNET_assert (p->th != NULL);
 456   GNUNET_TRANSPORT_get_hello (p->th, &process_hello, p);
 457 }
 458
 459
 460 static void
 461 run (void *cls,
 462      char *const *args,
 463      const char *cfgfile,
 464      const struct GNUNET_CONFIGURATION_Handle *cfg)
 465 {
 466   GNUNET_assert (ok == 1);
 467   OKPP;
 468   setup_peer (&p1, "test_core_quota_asymmetric_recv_limited_peer1.conf");
 469   setup_peer (&p2, "test_core_quota_asymmetric_recv_limited_peer2.conf");
 470   GNUNET_CORE_connect (p1.cfg, 1,
 471                        &p1,
 472                        &init_notify,
 473                        &connect_notify,
 474                        &disconnect_notify,
 475                        NULL,
 476                        &inbound_notify,
 477                        GNUNET_YES, &outbound_notify, GNUNET_YES, handlers);
 478 }
 479
 480 static void
 481 stop_arm (struct PeerContext *p)
 482 {
 483 #if START_ARM
 484   if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
 485     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
 486   if (GNUNET_OS_process_wait(p->arm_proc) != GNUNET_OK)
 487     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
 488   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 489               "ARM process %u stopped\n", GNUNET_OS_process_get_pid (p->arm_proc));
 490   GNUNET_OS_process_close (p->arm_proc);
 491   p->arm_proc = NULL;
 492 #endif
 493   GNUNET_CONFIGURATION_destroy (p->cfg);
 494 }
 495
 496 static int
 497 check ()
 498 {
 499   char *const argv[] = { "test-core-api-preferences",
 500     "-c",
 501     "test_core_api_data.conf",
 502 #if VERBOSE
 503     "-L", "DEBUG",
 504 #endif
 505     NULL
 506   };
 507   struct GNUNET_GETOPT_CommandLineOption options[] = {
 508     GNUNET_GETOPT_OPTION_END
 509   };
 510   ok = 1;
 511   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 512                       argv, "test-core-api-preferences", "nohelp", options, &run, &ok);
 513   stop_arm (&p1);
 514   stop_arm (&p2);
 515   return ok;
 516 }
 517
 518 int
 519 main (int argc, char *argv[])
 520 {
 521   int ret;
 522
 523   GNUNET_log_setup ("test-core-api",
 524 #if VERBOSE
 525                     "DEBUG",
 526 #else
 527                     "WARNING",
 528 #endif
 529                     NULL);
 530   ret = check ();
 531   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-1");
 532   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-2");
 533
 534   return ret;
 535 }
 536
 537 /* end of test_core_api_preferences.c */