src/core/test_core_api.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2009 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 2, 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
  42 /**
  43  * How long until we give up on transmitting the message?
  44  */
  45 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
  46
  47 #define MTYPE 12345
  48
  49 struct PeerContext
  50 {
  51   struct GNUNET_CONFIGURATION_Handle *cfg;
  52   struct GNUNET_CORE_Handle *ch;
  53   struct GNUNET_PeerIdentity id;
  54   struct GNUNET_TRANSPORT_Handle *th;
  55   struct GNUNET_MessageHeader *hello;
  56 #if START_ARM
  57   pid_t arm_pid;
  58 #endif
  59 };
  60
  61 static struct PeerContext p1;
  62
  63 static struct PeerContext p2;
  64
  65 static struct GNUNET_SCHEDULER_Handle *sched;
  66
  67 static int ok;
  68
  69 #if VERBOSE
  70 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
  71 #else
  72 #define OKPP do { ok++; } while (0)
  73 #endif
  74
  75
  76
  77 static void
  78 terminate_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  79 {
  80   GNUNET_assert (ok == 6);
  81   GNUNET_CORE_disconnect (p1.ch);
  82   GNUNET_CORE_disconnect (p2.ch);
  83   GNUNET_TRANSPORT_disconnect (p1.th);
  84   GNUNET_TRANSPORT_disconnect (p2.th);
  85   GNUNET_ARM_stop_services (p1.cfg, sched, "core", NULL);
  86   GNUNET_ARM_stop_services (p2.cfg, sched, "core", NULL);
  87   ok = 0;
  88 }
  89
  90
  91 static void
  92 terminate_task_error (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  93 {
  94   GNUNET_break (0);
  95   GNUNET_CORE_disconnect (p1.ch);
  96   GNUNET_CORE_disconnect (p2.ch);
  97   GNUNET_TRANSPORT_disconnect (p1.th);
  98   GNUNET_TRANSPORT_disconnect (p2.th);
  99   GNUNET_ARM_stop_services (p1.cfg, sched, "core", NULL);
 100   GNUNET_ARM_stop_services (p2.cfg, sched, "core", NULL);
 101   ok = 42;
 102 }
 103
 104
 105 static void
 106 connect_notify (void *cls,
 107                 const struct GNUNET_PeerIdentity *peer)
 108 {
 109   GNUNET_assert ((ok == 5) || (ok == 6));
 110   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 111               "Encrypted connection established to peer `%4s'\n",
 112               GNUNET_i2s (peer));
 113 }
 114
 115
 116 static void
 117 disconnect_notify (void *cls,
 118                    const struct GNUNET_PeerIdentity *peer)
 119 {
 120   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 121               "Encrypted connection to `%4s' cut\n", GNUNET_i2s (peer));
 122 }
 123
 124
 125 static unsigned int
 126 bfc_callback (void *cls,
 127               const struct GNUNET_PeerIdentity *receiver,
 128               void *position,
 129               size_t padding)
 130 {
 131   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 132               "Core requests data for `%4s', I have none.\n",
 133               GNUNET_i2s (receiver));
 134   return 0;
 135 }
 136
 137
 138 static int
 139 inbound_notify (void *cls,
 140                 const struct GNUNET_PeerIdentity *other,
 141                 const struct GNUNET_MessageHeader *message)
 142 {
 143   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 144               "Core provides inbound data from `%4s'.\n", GNUNET_i2s (other));
 145   return GNUNET_OK;
 146 }
 147
 148
 149 static int
 150 outbound_notify (void *cls,
 151                  const struct GNUNET_PeerIdentity *other,
 152                  const struct GNUNET_MessageHeader *message)
 153 {
 154   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 155               "Core notifies about outbound data for `%4s'.\n",
 156               GNUNET_i2s (other));
 157   return GNUNET_OK;
 158 }
 159
 160
 161 static GNUNET_SCHEDULER_TaskIdentifier err_task;
 162
 163
 164 static int
 165 process_mtype (void *cls,
 166                const struct GNUNET_PeerIdentity *peer,
 167                const struct GNUNET_MessageHeader *message)
 168 {
 169   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 170               "Receiving message from `%4s'.\n", GNUNET_i2s (peer));
 171   GNUNET_assert (ok == 5);
 172   OKPP;
 173   GNUNET_SCHEDULER_cancel (sched, err_task);
 174   GNUNET_SCHEDULER_add_delayed (sched,
 175                                 GNUNET_NO,
 176                                 GNUNET_SCHEDULER_PRIORITY_KEEP,
 177                                 GNUNET_SCHEDULER_NO_TASK,
 178                                 GNUNET_TIME_UNIT_ZERO, &terminate_task, NULL);
 179   return GNUNET_OK;
 180 }
 181
 182
 183 static struct GNUNET_CORE_MessageHandler handlers[] = {
 184   {&process_mtype, MTYPE, sizeof (struct GNUNET_MessageHeader)},
 185   {NULL, 0, 0}
 186 };
 187
 188
 189 static size_t
 190 transmit_ready (void *cls, size_t size, void *buf)
 191 {
 192   struct PeerContext *p = cls;
 193   struct GNUNET_MessageHeader *m;
 194
 195   GNUNET_assert (ok == 4);
 196   OKPP;
 197   GNUNET_assert (p == &p1);
 198   GNUNET_assert (buf != NULL);
 199   m = (struct GNUNET_MessageHeader *) buf;
 200   m->type = htons (MTYPE);
 201   m->size = htons (sizeof (struct GNUNET_MessageHeader));
 202   err_task =
 203     GNUNET_SCHEDULER_add_delayed (sched,
 204                                   GNUNET_NO,
 205                                   GNUNET_SCHEDULER_PRIORITY_KEEP,
 206                                   GNUNET_SCHEDULER_NO_TASK,
 207                                   GNUNET_TIME_UNIT_MINUTES, &terminate_task_error, NULL);
 208
 209   return sizeof (struct GNUNET_MessageHeader);
 210 }
 211
 212
 213
 214 static void
 215 init_notify (void *cls,
 216              struct GNUNET_CORE_Handle *server,
 217              const struct GNUNET_PeerIdentity *my_identity,
 218              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
 219 {
 220   struct PeerContext *p = cls;
 221
 222   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 223               "Core connection to `%4s' established\n",
 224               GNUNET_i2s (my_identity));
 225   GNUNET_assert (server != NULL);
 226   p->id = *my_identity;
 227   p->ch = server;
 228   if (cls == &p1)
 229     {
 230       GNUNET_assert (ok == 2);
 231       OKPP;
 232       /* connect p2 */
 233       GNUNET_CORE_connect (sched,
 234                            p2.cfg,
 235                            TIMEOUT,
 236                            &p2,
 237                            &init_notify,
 238                            &connect_notify,
 239                            &disconnect_notify,
 240                            &bfc_callback,
 241                            &inbound_notify,
 242                            GNUNET_YES,
 243                            &outbound_notify, GNUNET_YES, handlers);
 244     }
 245   else
 246     {
 247       GNUNET_assert (ok == 3);
 248       OKPP;
 249       GNUNET_assert (cls == &p2);
 250       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 251                   "Asking core (1) for transmission to peer `%4s'\n",
 252                   GNUNET_i2s (&p2.id));
 253       GNUNET_CORE_notify_transmit_ready (p1.ch,
 254                                          0,
 255                                          TIMEOUT,
 256                                          &p2.id,
 257                                          sizeof (struct GNUNET_MessageHeader),
 258                                          &transmit_ready, &p1);
 259
 260     }
 261 }
 262
 263
 264 static void
 265 process_hello (void *cls,
 266                struct GNUNET_TIME_Relative latency,
 267                const struct GNUNET_PeerIdentity *peer,
 268                const struct GNUNET_MessageHeader *message)
 269 {
 270   struct PeerContext *p = cls;
 271
 272   GNUNET_assert (peer != NULL);
 273   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 274               "Received (my) `%s' from transport service of `%4s'\n",
 275               "HELLO", GNUNET_i2s (peer));
 276   GNUNET_assert (message != NULL);
 277   p->hello = GNUNET_malloc (ntohs (message->size));
 278   memcpy (p->hello, message, ntohs (message->size));
 279   if ((p == &p1) && (p2.th != NULL))
 280     GNUNET_TRANSPORT_offer_hello (p2.th, message);
 281   if ((p == &p2) && (p1.th != NULL))
 282     GNUNET_TRANSPORT_offer_hello (p1.th, message);
 283
 284   if ((p == &p1) && (p2.hello != NULL))
 285     GNUNET_TRANSPORT_offer_hello (p1.th, p2.hello);
 286   if ((p == &p2) && (p1.hello != NULL))
 287     GNUNET_TRANSPORT_offer_hello (p2.th, p1.hello);
 288 }
 289
 290
 291
 292 static void
 293 setup_peer (struct PeerContext *p, const char *cfgname)
 294 {
 295   p->cfg = GNUNET_CONFIGURATION_create ();
 296 #if START_ARM
 297   p->arm_pid = GNUNET_OS_start_process ("gnunet-service-arm",
 298                                         "gnunet-service-arm",
 299 #if VERBOSE
 300                                         "-L", "DEBUG",
 301 #endif
 302                                         "-c", cfgname, NULL);
 303   sleep (1);                    /* allow ARM to start */
 304 #endif
 305   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 306   GNUNET_ARM_start_services (p->cfg, sched, "core", NULL);
 307   p->th = GNUNET_TRANSPORT_connect (sched, p->cfg, p, NULL, NULL, NULL);
 308   GNUNET_assert (p->th != NULL);
 309   GNUNET_TRANSPORT_get_hello (p->th, TIMEOUT, &process_hello, p);
 310 }
 311
 312
 313 static void
 314 run (void *cls,
 315      struct GNUNET_SCHEDULER_Handle *s,
 316      char *const *args,
 317      const char *cfgfile,
 318      const struct GNUNET_CONFIGURATION_Handle *cfg)
 319 {
 320   GNUNET_assert (ok == 1);
 321   OKPP;
 322   sched = s;
 323   setup_peer (&p1, "test_core_api_peer1.conf");
 324   setup_peer (&p2, "test_core_api_peer2.conf");
 325   GNUNET_CORE_connect (sched,
 326                        p1.cfg,
 327                        TIMEOUT,
 328                        &p1,
 329                        &init_notify,
 330                        &connect_notify,
 331                        &disconnect_notify,
 332                        &bfc_callback,
 333                        &inbound_notify,
 334                        GNUNET_YES, &outbound_notify, GNUNET_YES, handlers);
 335 }
 336
 337
 338 static void
 339 stop_arm (struct PeerContext *p)
 340 {
 341 #if START_ARM
 342   if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
 343     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
 344   if (GNUNET_OS_process_wait(p->arm_pid) != GNUNET_OK)
 345     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
 346   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 347               "ARM process %u stopped\n", p->arm_pid);
 348 #endif
 349   GNUNET_CONFIGURATION_destroy (p->cfg);
 350 }
 351
 352 static int
 353 check ()
 354 {
 355   char *const argv[] = { "test-core-api",
 356     "-c",
 357     "test_core_api_data.conf",
 358 #if VERBOSE
 359     "-L", "DEBUG",
 360 #endif
 361     NULL
 362   };
 363   struct GNUNET_GETOPT_CommandLineOption options[] = {
 364     GNUNET_GETOPT_OPTION_END
 365   };
 366   ok = 1;
 367   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 368                       argv, "test-core-api", "nohelp", options, &run, &ok);
 369   stop_arm (&p1);
 370   stop_arm (&p2);
 371   return ok;
 372 }
 373
 374 int
 375 main (int argc, char *argv[])
 376 {
 377   int ret;
 378
 379   GNUNET_log_setup ("test-core-api",
 380 #if VERBOSE
 381                     "DEBUG",
 382 #else
 383                     "WARNING",
 384 #endif
 385                     NULL);
 386   ret = check ();
 387   GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-core-peer-1");
 388   GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-core-peer-2");
 389
 390   return ret;
 391 }
 392
 393 /* end of test_core_api.c */