src/core/test_core_api.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2009, 2010 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.c
  22  * @brief testcase for core_api.c
  23  *
  24  * FIXME:
  25  * - make sure connect callback is invoked properly as well!
  26  */
  27 #include "platform.h"
  28 #include "gnunet_common.h"
  29 #include "gnunet_arm_service.h"
  30 #include "gnunet_core_service.h"
  31 #include "gnunet_getopt_lib.h"
  32 #include "gnunet_os_lib.h"
  33 #include "gnunet_program_lib.h"
  34 #include "gnunet_scheduler_lib.h"
  35 #include "gnunet_transport_service.h"
  36
  37 #define VERBOSE GNUNET_NO
  38
  39 #define START_ARM GNUNET_YES
  40
  41 #define MTYPE 12345
  42
  43 struct PeerContext
  44 {
  45   struct GNUNET_CONFIGURATION_Handle *cfg;
  46   struct GNUNET_CORE_Handle *ch;
  47   struct GNUNET_PeerIdentity id;
  48   struct GNUNET_TRANSPORT_Handle *th;
  49   struct GNUNET_MessageHeader *hello;
  50   int connect_status;
  51 #if START_ARM
  52   struct GNUNET_OS_Process *arm_proc;
  53 #endif
  54 };
  55
  56 static struct PeerContext p1;
  57
  58 static struct PeerContext p2;
  59
  60 static GNUNET_SCHEDULER_TaskIdentifier err_task;
  61
  62 static GNUNET_SCHEDULER_TaskIdentifier con_task;
  63
  64 static int ok;
  65
  66 #if VERBOSE
  67 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
  68 #else
  69 #define OKPP do { ok++; } while (0)
  70 #endif
  71
  72
  73 static void
  74 process_hello (void *cls,
  75                const struct GNUNET_MessageHeader *message)
  76 {
  77   struct PeerContext *p = cls;
  78
  79   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  80               "Received (my) `%s' from transport service\n",
  81               "HELLO");
  82   GNUNET_assert (message != NULL);
  83   if ((p == &p1) && (p2.th != NULL))
  84     GNUNET_TRANSPORT_offer_hello (p2.th, message, NULL, NULL);
  85   if ((p == &p2) && (p1.th != NULL))
  86     GNUNET_TRANSPORT_offer_hello (p1.th, message, NULL, NULL);
  87 }
  88
  89
  90 static void
  91 terminate_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  92 {
  93   GNUNET_assert (ok == 6);
  94   GNUNET_CORE_disconnect (p1.ch);
  95   GNUNET_CORE_disconnect (p2.ch);
  96   GNUNET_TRANSPORT_get_hello_cancel (p1.th, &process_hello, &p1);
  97   GNUNET_TRANSPORT_get_hello_cancel (p2.th, &process_hello, &p2);
  98   GNUNET_TRANSPORT_disconnect (p1.th);
  99   GNUNET_TRANSPORT_disconnect (p2.th);
 100   ok = 0;
 101 }
 102
 103
 104 static void
 105 terminate_task_error (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 106 {
 107 #if VERBOSE
 108   fprintf(stderr, "ENDING ANGRILY %u\n", ok);
 109 #endif
 110   GNUNET_break (0);
 111   if (NULL != p1.ch)
 112     {
 113       GNUNET_CORE_disconnect (p1.ch);
 114       p1.ch = NULL;
 115     }
 116   if (NULL != p2.ch)
 117     {
 118       GNUNET_CORE_disconnect (p2.ch);
 119       p2.ch = NULL;
 120     }
 121   if (p1.th != NULL)
 122     {
 123       GNUNET_TRANSPORT_get_hello_cancel (p1.th, &process_hello, &p1);
 124       GNUNET_TRANSPORT_disconnect (p1.th);
 125       p1.th = NULL;
 126     }
 127   if (p2.th != NULL)
 128     {
 129       GNUNET_TRANSPORT_get_hello_cancel (p2.th, &process_hello, &p2);
 130       GNUNET_TRANSPORT_disconnect (p2.th);
 131       p2.th = NULL;
 132     }
 133   ok = 42;
 134 }
 135
 136
 137 static size_t
 138 transmit_ready (void *cls, size_t size, void *buf)
 139 {
 140   struct PeerContext *p = cls;
 141   struct GNUNET_MessageHeader *m;
 142
 143   GNUNET_assert (ok == 4);
 144   OKPP;
 145   GNUNET_assert (p == &p1);
 146   GNUNET_assert (buf != NULL);
 147   m = (struct GNUNET_MessageHeader *) buf;
 148   m->type = htons (MTYPE);
 149   m->size = htons (sizeof (struct GNUNET_MessageHeader));
 150   return sizeof (struct GNUNET_MessageHeader);
 151 }
 152
 153
 154 static void
 155 connect_notify (void *cls,
 156                 const struct GNUNET_PeerIdentity *peer,
 157                 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 158 {
 159   struct PeerContext *pc = cls;
 160
 161   if (0 == memcmp (&pc->id,
 162                    peer,
 163                    sizeof (struct GNUNET_PeerIdentity)))
 164     return;
 165   GNUNET_assert (pc->connect_status == 0);
 166   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 167               "Encrypted connection established to peer `%4s'\n",
 168               GNUNET_i2s (peer));
 169   if (GNUNET_SCHEDULER_NO_TASK != con_task)
 170     {
 171       GNUNET_SCHEDULER_cancel (con_task);
 172       con_task = GNUNET_SCHEDULER_NO_TASK;
 173     }
 174   pc->connect_status = 1;
 175   if (pc == &p1)
 176     {
 177       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 178                   "Asking core (1) for transmission to peer `%4s'\n",
 179                   GNUNET_i2s (&p2.id));
 180       if (NULL == GNUNET_CORE_notify_transmit_ready (p1.ch,
 181                                                      GNUNET_YES,
 182                                                      0,
 183                                                      GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 45),
 184                                                      &p2.id,
 185                                                      sizeof (struct GNUNET_MessageHeader),
 186                                                      &transmit_ready, &p1))
 187         {
 188           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 189                       "RECEIVED NULL when asking core (1) for transmission to peer `%4s'\n",
 190                       GNUNET_i2s (&p2.id));
 191         }
 192     }
 193 }
 194
 195
 196 static void
 197 disconnect_notify (void *cls,
 198                    const struct GNUNET_PeerIdentity *peer)
 199 {
 200   struct PeerContext *pc = cls;
 201
 202   if (0 == memcmp (&pc->id,
 203                    peer,
 204                    sizeof (struct GNUNET_PeerIdentity)))
 205     return;
 206   pc->connect_status = 0;
 207   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 208               "Encrypted connection to `%4s' cut\n", GNUNET_i2s (peer));
 209 }
 210
 211
 212 static int
 213 inbound_notify (void *cls,
 214                 const struct GNUNET_PeerIdentity *other,
 215                 const struct GNUNET_MessageHeader *message,
 216                 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 217 {
 218   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 219               "Core provides inbound data from `%4s'.\n", GNUNET_i2s (other));
 220   return GNUNET_OK;
 221 }
 222
 223
 224 static int
 225 outbound_notify (void *cls,
 226                  const struct GNUNET_PeerIdentity *other,
 227                  const struct GNUNET_MessageHeader *message,
 228                  const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 229 {
 230   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 231               "Core notifies about outbound data for `%4s'.\n",
 232               GNUNET_i2s (other));
 233   return GNUNET_OK;
 234 }
 235
 236
 237
 238 static int
 239 process_mtype (void *cls,
 240                const struct GNUNET_PeerIdentity *peer,
 241                const struct GNUNET_MessageHeader *message,
 242                const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 243 {
 244   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 245               "Receiving message from `%4s'.\n", GNUNET_i2s (peer));
 246   GNUNET_assert (ok == 5);
 247   OKPP;
 248   GNUNET_SCHEDULER_cancel (err_task);
 249   err_task = GNUNET_SCHEDULER_add_now (&terminate_task, NULL);
 250   return GNUNET_OK;
 251 }
 252
 253
 254 static struct GNUNET_CORE_MessageHandler handlers[] = {
 255   {&process_mtype, MTYPE, sizeof (struct GNUNET_MessageHeader)},
 256   {NULL, 0, 0}
 257 };
 258
 259
 260 static void
 261 connect_task (void *cls,
 262               const struct GNUNET_SCHEDULER_TaskContext *tc)
 263 {
 264   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
 265     {
 266       con_task = GNUNET_SCHEDULER_NO_TASK;
 267       return;
 268     }
 269   con_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 270                                            &connect_task,
 271                                            NULL);
 272   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 273               "Asking core (1) to connect to peer `%4s'\n",
 274               GNUNET_i2s (&p2.id));
 275   GNUNET_CORE_peer_request_connect (p1.ch,
 276                                     &p2.id,
 277                                     NULL, NULL);
 278 }
 279
 280 static void
 281 init_notify (void *cls,
 282              struct GNUNET_CORE_Handle *server,
 283              const struct GNUNET_PeerIdentity *my_identity,
 284              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
 285 {
 286   struct PeerContext *p = cls;
 287
 288   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 289               "Core connection to `%4s' established\n",
 290               GNUNET_i2s (my_identity));
 291   GNUNET_assert (server != NULL);
 292   p->id = *my_identity;
 293   p->ch = server;
 294   if (cls == &p1)
 295     {
 296       GNUNET_assert (ok == 2);
 297       OKPP;
 298       /* connect p2 */
 299       p2.ch = GNUNET_CORE_connect (p2.cfg, 1,
 300                                    &p2,
 301                                    &init_notify,
 302                                    &connect_notify,
 303                                    &disconnect_notify,
 304                                    NULL,
 305                                    &inbound_notify,
 306                                    GNUNET_YES,
 307                                    &outbound_notify, GNUNET_YES, handlers);
 308     }
 309   else
 310     {
 311       GNUNET_assert (ok == 3);
 312       OKPP;
 313       GNUNET_assert (cls == &p2);
 314       con_task = GNUNET_SCHEDULER_add_now (&connect_task,
 315                                            NULL);
 316     }
 317 }
 318
 319
 320 static void
 321 setup_peer (struct PeerContext *p, const char *cfgname)
 322 {
 323   p->cfg = GNUNET_CONFIGURATION_create ();
 324 #if START_ARM
 325   p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
 326                                         "gnunet-service-arm",
 327 #if VERBOSE
 328                                         "-L", "DEBUG",
 329 #endif
 330                                         "-c", cfgname, NULL);
 331 #endif
 332   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 333   p->th = GNUNET_TRANSPORT_connect (p->cfg, NULL, p, NULL, NULL, NULL);
 334   GNUNET_assert (p->th != NULL);
 335   GNUNET_TRANSPORT_get_hello (p->th, &process_hello, p);
 336 }
 337
 338
 339 static void
 340 run (void *cls,
 341      char *const *args,
 342      const char *cfgfile,
 343      const struct GNUNET_CONFIGURATION_Handle *cfg)
 344 {
 345   GNUNET_assert (ok == 1);
 346   OKPP;
 347   setup_peer (&p1, "test_core_api_peer1.conf");
 348   setup_peer (&p2, "test_core_api_peer2.conf");
 349   err_task =
 350     GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 120),
 351                                   &terminate_task_error, NULL);
 352   p1.ch = GNUNET_CORE_connect (p1.cfg, 1,
 353                                &p1,
 354                                &init_notify,
 355                                &connect_notify,
 356                                &disconnect_notify,
 357                                NULL,
 358                                &inbound_notify,
 359                                GNUNET_YES, &outbound_notify, GNUNET_YES, handlers);
 360 }
 361
 362 static void
 363 stop_arm (struct PeerContext *p)
 364 {
 365 #if START_ARM
 366   if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
 367     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
 368   if (GNUNET_OS_process_wait(p->arm_proc) != GNUNET_OK)
 369     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
 370   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 371               "ARM process %u stopped\n", GNUNET_OS_process_get_pid (p->arm_proc));
 372   GNUNET_OS_process_close (p->arm_proc);
 373   p->arm_proc = NULL;
 374 #endif
 375   GNUNET_CONFIGURATION_destroy (p->cfg);
 376 }
 377
 378 static int
 379 check ()
 380 {
 381   char *const argv[] = { "test-core-api",
 382     "-c",
 383     "test_core_api_data.conf",
 384 #if VERBOSE
 385     "-L", "DEBUG",
 386 #endif
 387     NULL
 388   };
 389   struct GNUNET_GETOPT_CommandLineOption options[] = {
 390     GNUNET_GETOPT_OPTION_END
 391   };
 392   ok = 1;
 393   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 394                       argv, "test-core-api", "nohelp", options, &run, &ok);
 395   stop_arm (&p1);
 396   stop_arm (&p2);
 397   return ok;
 398 }
 399
 400 int
 401 main (int argc, char *argv[])
 402 {
 403   int ret;
 404
 405   GNUNET_log_setup ("test-core-api",
 406 #if VERBOSE
 407                     "DEBUG",
 408 #else
 409                     "WARNING",
 410 #endif
 411                     NULL);
 412   ret = check ();
 413   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-1");
 414   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-2");
 415
 416   return ret;
 417 }
 418
 419 /* end of test_core_api.c */