src/transport/test_transport_api_manipulation_recv_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_recv_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 receive delay of 1 second will
  26  * be configured and 2 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, 120)
  38
  39
  40 static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc;
  41
  42 static int messages_recv;
  43
  44 static struct GNUNET_TIME_Absolute start_normal;
  45
  46 static struct GNUNET_TIME_Relative dur_normal;
  47
  48 static struct GNUNET_TIME_Absolute start_delayed;
  49
  50 static struct GNUNET_TIME_Relative dur_delayed;
  51
  52
  53 static void
  54 do_free (void *cls)
  55 {
  56   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
  57
  58   GNUNET_free (sc);
  59 }
  60
  61
  62 static void
  63 delayed_transmit (void *cls)
  64 {
  65   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
  66
  67   start_delayed = GNUNET_TIME_absolute_get ();
  68   GNUNET_TRANSPORT_TESTING_large_send (sc);
  69 }
  70
  71
  72 static void
  73 sendtask (void *cls)
  74 {
  75   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc;
  76   struct GNUNET_ATS_Properties prop;
  77   struct GNUNET_TIME_Relative delay;
  78
  79   sc = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_SendClosure);
  80   sc->num_messages = 1;
  81   sc->ccc = ccc;
  82   sc->cont = &do_free;
  83   sc->cont_cls = sc;
  84   if (0 == messages_recv)
  85   {
  86     start_normal = GNUNET_TIME_absolute_get();
  87   }
  88   if (0 < messages_recv)
  89   {
  90     memset (&prop,
  91             0,
  92             sizeof (prop));
  93     delay = GNUNET_TIME_UNIT_SECONDS;
  94     GNUNET_TRANSPORT_manipulation_set (ccc->p[1]->tmh,
  95                                        &ccc->p[0]->id,
  96                                        &prop,
  97                                        delay,
  98                                        GNUNET_TIME_UNIT_ZERO);
  99     /* wait 1s to allow manipulation to go into effect */
 100     if (1 == messages_recv)
 101     {
 102       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 103                                     &delayed_transmit,
 104                                     sc);
 105       return;
 106     }
 107   }
 108   GNUNET_TRANSPORT_TESTING_large_send (sc);
 109 }
 110
 111
 112 static void
 113 notify_receive (void *cls,
 114                 struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
 115                 const struct GNUNET_PeerIdentity *sender,
 116                 const struct GNUNET_TRANSPORT_TESTING_TestMessage *message)
 117 {
 118   {
 119     char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id));
 120
 121     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 122                 "Peer %u (`%s') received message of type %d and size %u size from peer %s)!\n",
 123                 receiver->no,
 124                 ps,
 125                 ntohs (message->header.type),
 126                 ntohs (message->header.size),
 127                 GNUNET_i2s (sender));
 128     GNUNET_free (ps);
 129   }
 130   if ( (GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE != ntohs (message->header.type)) ||
 131        (GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE != ntohs (message->header.size)) )
 132   {
 133     GNUNET_break (0);
 134     ccc->global_ret = GNUNET_SYSERR;
 135     GNUNET_SCHEDULER_shutdown ();
 136     return;
 137   }
 138
 139   if (messages_recv <= 2)
 140   {
 141     /* Received non-delayed message */
 142     dur_normal = GNUNET_TIME_absolute_get_duration (start_normal);
 143     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 144                 "Received non-delayed message %u after %s\n",
 145                 messages_recv,
 146                 GNUNET_STRINGS_relative_time_to_string (dur_normal,
 147                                                         GNUNET_YES));
 148     GNUNET_SCHEDULER_add_now (&sendtask,
 149                               NULL);
 150     messages_recv++;
 151     return;
 152   }
 153   /* Received manipulated message */
 154   dur_delayed = GNUNET_TIME_absolute_get_duration(start_delayed);
 155   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 156               "Received delayed message %u after %s\n",
 157               messages_recv,
 158               GNUNET_STRINGS_relative_time_to_string (dur_delayed,
 159                                                       GNUNET_YES));
 160   if (dur_delayed.rel_value_us < GNUNET_TIME_UNIT_SECONDS.rel_value_us)
 161   {
 162     GNUNET_break (0);
 163     ccc->global_ret = GNUNET_SYSERR;
 164     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 165                 "Delayed message was not delayed correctly: took only %s\n",
 166                 GNUNET_STRINGS_relative_time_to_string (dur_delayed,
 167                                                         GNUNET_YES));
 168   }
 169   else
 170   {
 171     ccc->global_ret = GNUNET_OK;
 172   }
 173   /* shutdown */
 174   GNUNET_SCHEDULER_shutdown ();
 175 }
 176
 177
 178 int
 179 main (int argc,
 180       char *argv[])
 181 {
 182   struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = {
 183     .connect_continuation = &sendtask,
 184     .config_file = "test_transport_api_data.conf",
 185     .rec = &notify_receive,
 186     .nc = &GNUNET_TRANSPORT_TESTING_log_connect,
 187     .nd = &GNUNET_TRANSPORT_TESTING_log_disconnect,
 188     .timeout = TIMEOUT,
 189     .global_ret = GNUNET_NO
 190   };
 191
 192   ccc = &my_ccc;
 193   if (GNUNET_OK !=
 194       GNUNET_TRANSPORT_TESTING_main (2,
 195                                      &GNUNET_TRANSPORT_TESTING_connect_check,
 196                                      ccc))
 197     return 1;
 198   return 0;
 199 }
 200
 201 /* end of test_transport_api_manipulation_recv_tcp.c */