src/transport/test_transport_testing.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 transport/test_transport_api.c
  22  * @brief base test case for transport implementations
  23  *
  24  * This test case serves as a base for tcp, udp, and udp-nat
  25  * transport test cases.  Based on the executable being run
  26  * the correct test case will be performed.  Conservation of
  27  * C code apparently.
  28  */
  29 #include "platform.h"
  30 #include "gnunet_common.h"
  31 #include "gnunet_hello_lib.h"
  32 #include "gnunet_getopt_lib.h"
  33 #include "gnunet_os_lib.h"
  34 #include "gnunet_program_lib.h"
  35 #include "gnunet_scheduler_lib.h"
  36 #include "gnunet_transport_service.h"
  37 #include "transport.h"
  38 #include "transport-testing.h"
  39
  40 #define VERBOSE GNUNET_NO
  41
  42 #define VERBOSE_ARM GNUNET_NO
  43
  44 #define START_ARM GNUNET_YES
  45
  46 /**
  47  * How long until we give up on transmitting the message?
  48  */
  49 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
  50
  51 /**
  52  * How long until we give up on transmitting the message?
  53  */
  54 #define TIMEOUT_TRANSMIT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
  55
  56 #define MTYPE 12345
  57
  58 static struct PeerContext p1;
  59
  60 static struct PeerContext p2;
  61
  62 static int ok;
  63
  64 static int is_tcp;
  65
  66 static  GNUNET_SCHEDULER_TaskIdentifier die_task;
  67
  68 static  GNUNET_SCHEDULER_TaskIdentifier tct;
  69
  70
  71 #if VERBOSE
  72 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
  73 #else
  74 #define OKPP do { ok++; } while (0)
  75 #endif
  76
  77
  78
  79 static void
  80 stop_arm (struct PeerContext *p)
  81 {
  82 #if START_ARM
  83   if (NULL != p->arm_proc)
  84     {
  85       if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
  86         GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
  87       GNUNET_OS_process_wait (p->arm_proc);
  88       GNUNET_OS_process_close (p->arm_proc);
  89       p->arm_proc = NULL;
  90     }
  91 #endif
  92   GNUNET_CONFIGURATION_destroy (p->cfg);
  93 }
  94
  95
  96
  97
  98 static void
  99 exchange_hello_last (void *cls,
 100                      const struct GNUNET_MessageHeader *message)
 101 {
 102   struct PeerContext *me = cls;
 103
 104   GNUNET_assert (message != NULL);
 105   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 106               "Exchanging HELLO of size %d with peer (%s)!\n",
 107               (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
 108               GNUNET_i2s (&me->id));
 109   GNUNET_assert (GNUNET_OK ==
 110                  GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
 111                                       message, &me->id));
 112   GNUNET_TRANSPORT_offer_hello (p1.th, message, NULL, NULL);
 113 }
 114
 115
 116 static void
 117 exchange_hello (void *cls,
 118                 const struct GNUNET_MessageHeader *message)
 119 {
 120   struct PeerContext *me = cls;
 121
 122   GNUNET_assert (message != NULL);
 123   GNUNET_assert (GNUNET_OK ==
 124                  GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
 125                                       message, &me->id));
 126   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 127               "Exchanging HELLO of size %d from peer %s!\n",
 128               (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
 129               GNUNET_i2s (&me->id));
 130   GNUNET_TRANSPORT_offer_hello (p2.th, message, NULL, NULL);
 131 }
 132
 133
 134 static void
 135 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 136 {
 137   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Disconnecting from transports!\n");
 138   GNUNET_break (0);
 139   die_task = GNUNET_SCHEDULER_NO_TASK;
 140   GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_last, &p2);
 141   GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, &p1);
 142   GNUNET_TRANSPORT_disconnect (p1.th);
 143   GNUNET_TRANSPORT_disconnect (p2.th);
 144   if (GNUNET_SCHEDULER_NO_TASK != tct)
 145     {
 146       GNUNET_SCHEDULER_cancel (tct);
 147       tct = GNUNET_SCHEDULER_NO_TASK;
 148     }
 149   ok = 1;
 150 }
 151
 152 static void
 153 end_normally (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 154 {
 155   ok = 60;
 156   die_task = GNUNET_SCHEDULER_NO_TASK;
 157   GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_last, &p2);
 158   GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, &p1);
 159   GNUNET_TRANSPORT_disconnect (p1.th);
 160   GNUNET_TRANSPORT_disconnect (p2.th);
 161   if (GNUNET_SCHEDULER_NO_TASK != tct)
 162     {
 163       GNUNET_SCHEDULER_cancel (tct);
 164       tct = GNUNET_SCHEDULER_NO_TASK;
 165     }
 166   ok = 0;
 167 }
 168
 169 static void
 170 notify_connect (void *cls,
 171                 const struct GNUNET_PeerIdentity *peer,
 172                 const struct GNUNET_TRANSPORT_ATS_Information *ats,
 173                 uint32_t ats_count)
 174 {
 175   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 176               "Peer `%4s' connected to us (%p)!\n",
 177               GNUNET_i2s (peer),
 178               cls);
 179   if (cls == &p1)
 180     {
 181       GNUNET_assert (ok >= 2);
 182       OKPP;
 183       OKPP;
 184       if (GNUNET_SCHEDULER_NO_TASK != die_task)
 185         GNUNET_SCHEDULER_cancel (die_task);
 186       if (GNUNET_SCHEDULER_NO_TASK != tct)
 187         GNUNET_SCHEDULER_cancel (tct);
 188       tct = GNUNET_SCHEDULER_NO_TASK;
 189       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT_TRANSMIT,
 190                                                &end_normally, NULL);
 191     }
 192 }
 193
 194
 195 static void
 196 notify_disconnect (void *cls,
 197                    const struct GNUNET_PeerIdentity *peer)
 198 {
 199    if ( (ok != 60) &&
 200          (GNUNET_SCHEDULER_NO_TASK != die_task) )
 201      {
 202        GNUNET_SCHEDULER_cancel (die_task);
 203        die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
 204      }
 205   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 206               "Peer `%4s' disconnected (%p)!\n",
 207               GNUNET_i2s (peer), cls);
 208 }
 209
 210
 211 static void
 212 setup_peer (struct PeerContext *p,
 213             const char *cfgname)
 214 {
 215   p->cfg = GNUNET_CONFIGURATION_create ();
 216
 217   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 218   if (GNUNET_CONFIGURATION_have_value (p->cfg,"PATHS", "SERVICEHOME"))
 219     {
 220       GNUNET_assert (GNUNET_OK ==
 221                      GNUNET_CONFIGURATION_get_value_string (p->cfg,
 222                                                             "PATHS", "SERVICEHOME",
 223                                                             &p->servicehome));
 224       GNUNET_DISK_directory_remove (p->servicehome);
 225     }
 226
 227 #if START_ARM
 228   p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
 229                                         "gnunet-service-arm",
 230 #if VERBOSE_ARM
 231                                         "-L", "DEBUG",
 232 #endif
 233                                         "-c", cfgname, NULL);
 234 #endif
 235   p->th = GNUNET_TRANSPORT_connect (p->cfg,
 236                                     NULL, p,
 237                                     NULL,
 238                                     &notify_connect, &notify_disconnect);
 239   GNUNET_assert (p->th != NULL);
 240 }
 241
 242
 243 static void
 244 try_connect (void *cls,
 245              const struct GNUNET_SCHEDULER_TaskContext *tc)
 246 {
 247   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 248               "Asking peers to connect...\n");
 249   /* FIXME: 'pX.id' may still be all-zeros here... */
 250   GNUNET_TRANSPORT_try_connect (p2.th,
 251                                 &p1.id);
 252   GNUNET_TRANSPORT_try_connect (p1.th,
 253                                 &p2.id);
 254   tct = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 255                                       &try_connect,
 256                                       NULL);
 257 }
 258
 259
 260 static void
 261 run (void *cls,
 262      char *const *args,
 263      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 264 {
 265   GNUNET_assert (ok == 1);
 266   OKPP;
 267   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
 268                                            &end_badly, NULL);
 269   if (is_tcp)
 270     {
 271       setup_peer (&p1, "test_transport_api_multiaddress_tcp_peer1.conf");
 272       setup_peer (&p2, "test_transport_api_multiaddress_tcp_peer2.conf");
 273     }
 274   GNUNET_assert(p1.th != NULL);
 275   GNUNET_assert(p2.th != NULL);
 276
 277   GNUNET_TRANSPORT_get_hello (p1.th, &exchange_hello, &p1);
 278   GNUNET_TRANSPORT_get_hello (p2.th, &exchange_hello_last, &p2);
 279   tct = GNUNET_SCHEDULER_add_now (&try_connect, NULL);
 280 }
 281
 282 static int
 283 check ()
 284 {
 285   static char *const argv[] = { "test-transport-api",
 286     "-c",
 287     "test_transport_api_data.conf",
 288 #if VERBOSE
 289     "-L", "DEBUG",
 290 #endif
 291     NULL
 292   };
 293   static struct GNUNET_GETOPT_CommandLineOption options[] = {
 294     GNUNET_GETOPT_OPTION_END
 295   };
 296
 297 #if WRITECONFIG
 298   setTransportOptions("test_transport_api_data.conf");
 299 #endif
 300   ok = 1;
 301   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 302                       argv, "test-transport-api", "nohelp",
 303                       options, &run, &ok);
 304   stop_arm (&p1);
 305   stop_arm (&p2);
 306
 307   if (p1.servicehome != NULL)
 308     {
 309       GNUNET_DISK_directory_remove (p1.servicehome);
 310       GNUNET_free(p1.servicehome);
 311     }
 312   if (p2.servicehome != NULL)
 313     {
 314       GNUNET_DISK_directory_remove (p2.servicehome);
 315       GNUNET_free(p2.servicehome);
 316     }
 317   return ok;
 318 }
 319
 320
 321 int
 322 main (int argc, char *argv[])
 323 {
 324   int ret;
 325
 326   GNUNET_log_setup ("test-transport-api",
 327 #if VERBOSE
 328                     "DEBUG",
 329 #else
 330                     "WARNING",
 331 #endif
 332                     NULL);
 333
 334   if (strstr(argv[0], "tcp") != NULL)
 335     {
 336       is_tcp = GNUNET_YES;
 337     }
 338
 339   ret = check ();
 340
 341   return ret;
 342 }
 343
 344 /* end of test_transport_api.c */