src/transport/test_transport_api_manipulation_send_tcp.c

   1 /*
   2      This file is part of GNUnet.
   3      Copyright (C) 2009, 2010, 2016 GNUnet e.V.
   4
   5      GNUnet is free software: you can redistribute it and/or modify it
   6      under the terms of the GNU Affero General Public License as published
   7      by the Free Software Foundation, either version 3 of the License,
   8      or (at your 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      Affero General Public License for more details.
  14
  15      You should have received a copy of the GNU Affero General Public License
  16      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18      SPDX-License-Identifier: AGPL3.0-or-later
  19 */
  20 /**
  21  * @file transport/test_transport_api_manipulation_send_tcp.c
  22  * @brief base test case for transport traffic manipulation implementation
  23  *
  24  * This test case will setup 2 peers and connect them, the first message
  25  * will be sent without manipulation, then a send delay of 1 second will
  26  * be configured and 1 more message will be sent. Time will be measured.
  27  *
  28  * In addition the distance on receiver side will be manipulated to be 10
  29  */
  30 #include "platform.h"
  31 #include "gnunet_transport_service.h"
  32 #include "transport-testing.h"
  33
  34 /**
  35  * How long until we give up on transmitting the message?
  36  */
  37 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
  38
  39 static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc;
  40
  41 static int messages_recv;
  42
  43 static struct GNUNET_TIME_Absolute start_normal;
  44
  45 static struct GNUNET_TIME_Relative dur_normal;
  46
  47 static struct GNUNET_TIME_Absolute start_delayed;
  48
  49 static struct GNUNET_TIME_Relative dur_delayed;
  50
  51
  52 static void
  53 do_free (void *cls)
  54 {
  55   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
  56
  57   GNUNET_free (sc);
  58 }
  59
  60
  61 static void
  62 delayed_transmit (void *cls)
  63 {
  64   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
  65
  66   start_delayed = GNUNET_TIME_absolute_get ();
  67   GNUNET_TRANSPORT_TESTING_large_send (sc);
  68 }
  69
  70
  71 static void
  72 sendtask (void *cls)
  73 {
  74   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc;
  75   struct GNUNET_TIME_Relative delay;
  76   struct GNUNET_ATS_Properties prop;
  77
  78   sc = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_SendClosure);
  79   sc->num_messages = 1;
  80   sc->ccc = ccc;
  81   sc->cont = &do_free;
  82   sc->cont_cls = sc;
  83   if (0 == messages_recv)
  84   {
  85     start_normal = GNUNET_TIME_absolute_get ();
  86   }
  87   if (1 == messages_recv)
  88   {
  89     memset (&prop,
  90             0,
  91             sizeof (prop));
  92     delay = GNUNET_TIME_UNIT_SECONDS;
  93     GNUNET_TRANSPORT_manipulation_set (ccc->p[0]->tmh,
  94                                        &ccc->p[1]->id,
  95                                        &prop,
  96                                        GNUNET_TIME_UNIT_ZERO,
  97                                        delay);
  98     /* wait 1s to allow manipulation to go into effect */
  99     GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 100                                   &delayed_transmit,
 101                                   sc);
 102     return;
 103   }
 104   GNUNET_TRANSPORT_TESTING_large_send (sc);
 105 }
 106
 107
 108 static void
 109 notify_receive (void *cls,
 110                 struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
 111                 const struct GNUNET_PeerIdentity *sender,
 112                 const struct GNUNET_TRANSPORT_TESTING_TestMessage *message)
 113 {
 114   {
 115     char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id));
 116
 117     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 118                 "Peer %u (`%s') received message of type %d and size %u size from peer %s)!\n",
 119                 receiver->no,
 120                 ps,
 121                 ntohs (message->header.type),
 122                 ntohs (message->header.size),
 123                 GNUNET_i2s (sender));
 124     GNUNET_free (ps);
 125   }
 126
 127   if ( (GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE != ntohs (message->header.type)) ||
 128        (GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE != ntohs (message->header.size)) )
 129   {
 130     GNUNET_break (0);
 131     ccc->global_ret = GNUNET_SYSERR;
 132     GNUNET_SCHEDULER_shutdown ();
 133     return;
 134   }
 135
 136   if (0 == messages_recv)
 137   {
 138     /* Received non-delayed message */
 139     dur_normal = GNUNET_TIME_absolute_get_duration (start_normal);
 140     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 141                 "Received non-delayed message %u after %s\n",
 142                 messages_recv,
 143                 GNUNET_STRINGS_relative_time_to_string (dur_normal,
 144                                                         GNUNET_YES));
 145     GNUNET_SCHEDULER_add_now (&sendtask,
 146                               NULL);
 147     messages_recv++;
 148     return;
 149   }
 150   /* Received manipulated message */
 151   dur_delayed = GNUNET_TIME_absolute_get_duration(start_delayed);
 152   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 153               "Received delayed message %u after %s\n",
 154               messages_recv,
 155               GNUNET_STRINGS_relative_time_to_string (dur_delayed,
 156                                                       GNUNET_YES));
 157   if (dur_delayed.rel_value_us < GNUNET_TIME_UNIT_SECONDS.rel_value_us)
 158   {
 159     GNUNET_break (0);
 160     ccc->global_ret = GNUNET_SYSERR;
 161     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 162                 "Delayed message was not delayed correctly: took only %s\n",
 163                 GNUNET_STRINGS_relative_time_to_string (dur_delayed,
 164                                                         GNUNET_YES));
 165   }
 166   else
 167   {
 168     ccc->global_ret = GNUNET_OK;
 169   }
 170   GNUNET_SCHEDULER_shutdown ();
 171 }
 172
 173
 174 int
 175 main (int argc,
 176       char *argv[])
 177 {
 178   struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = {
 179     .connect_continuation = &sendtask,
 180     .config_file = "test_transport_api_data.conf",
 181     .rec = &notify_receive,
 182     .nc = &GNUNET_TRANSPORT_TESTING_log_connect,
 183     .nd = &GNUNET_TRANSPORT_TESTING_log_disconnect,
 184     .timeout = TIMEOUT,
 185     .global_ret = GNUNET_NO
 186   };
 187
 188   ccc = &my_ccc;
 189   if (GNUNET_OK !=
 190       GNUNET_TRANSPORT_TESTING_main (2,
 191                                      &GNUNET_TRANSPORT_TESTING_connect_check,
 192                                      ccc))
 193     return 1;
 194   return 0;
 195 }
 196
 197 /* end of test_transport_api_manipulation_send_tcp.c */