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