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