src/experimentation/gnunet-daemon-experimentation_capabilities.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 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 /**
  22  * @file experimentation/gnunet-daemon-experimentation_capabilities.c
  23  * @brief experimentation daemon: capabilities management
  24  * @author Christian Grothoff
  25  * @author Matthias Wachs
  26  */
  27 #include "platform.h"
  28 #include "gnunet_getopt_lib.h"
  29 #include "gnunet_util_lib.h"
  30 #include "gnunet_core_service.h"
  31 #include "gnunet_statistics_service.h"
  32 #include "gnunet-daemon-experimentation.h"
  33
  34 uint32_t GSE_node_capabilities;
  35
  36
  37 #define GNUNET_EXPERIMENTATION_capabilities_count 11;
  38
  39 /**
  40  * Capabilities a node has or an experiment requires string
  41  */
  42 #define GNUNET_EXPERIMENTATION_capabilities_string {"NONE", "PLUGIN_TCP", "PLUGIN_UDP", "PLUGIN_UNIX", "PLUGIN_HTTP_CLIENT", "PLUGIN_HTTP_SERVER", "PLUGIN_HTTPS_CLIENT", "PLUGIN_HTTPS_SERVER", "PLUGIN_WLAN", "HAVE_IPV6", "BEHIND_NAT"}
  43
  44
  45 /**
  46  * Print a single capability value
  47  *
  48  * @param cap capability value
  49  * @return the string to print
  50  */
  51 const char *
  52 GNUNET_EXPERIMENTATION_capability_to_str (uint32_t cap)
  53 {
  54         char * capstr[] = GNUNET_EXPERIMENTATION_capabilities_string;
  55         unsigned index = 0;
  56         uint32_t test = 0;
  57
  58         if (0 == cap)
  59                 return capstr[0];
  60
  61         index = (log(cap) / log (2)) + 1;
  62
  63         test = 1 << (index - 1);
  64         if (test != cap)
  65                 return "UNDEFINED";
  66
  67         if (index <= 11)
  68                 return capstr[index];
  69         else
  70          return "UNDEFINED";
  71
  72
  73 }
  74
  75
  76 /**
  77  * Are the capabilities provided?
  78  *
  79  * @param have bitstring containing the provided capabilities
  80  * @param desired bitstring containing the desired capabilities\
  81  * @return GNUNET_YES or GNUNET_NO
  82  */
  83 int
  84 GNUNET_EXPERIMENTATION_capabilities_have (uint32_t have, uint32_t desired)
  85 {
  86         if (desired == (desired & have))
  87                 return GNUNET_YES;
  88         else
  89                 return GNUNET_NO;
  90 }
  91
  92
  93 /**
  94  * Start the detecting capabilities
  95  */
  96 void
  97 GNUNET_EXPERIMENTATION_capabilities_start ()
  98 {
  99         char *plugins;
 100   char *pos;
 101   unsigned int c1;
 102   uint32_t index;
 103   GSE_node_capabilities = NONE;
 104
 105         /* Plugins configured */
 106
 107   if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (GSE_cfg,
 108                         "TRANSPORT", "PLUGINS", &plugins))
 109   {
 110           for (pos = strtok (plugins, " "); pos != NULL; pos = strtok (NULL, " "))
 111           {
 112               if (0 == strcmp (pos, "tcp"))
 113                 GSE_node_capabilities |= PLUGIN_TCP;
 114               else if (0 == strcmp (pos, "udp"))
 115                 GSE_node_capabilities |= PLUGIN_UDP;
 116                                         else if (0 == strcmp (pos, "unix"))
 117                                                 GSE_node_capabilities |= PLUGIN_UNIX;
 118                                         else if (0 == strcmp (pos, "http_client"))
 119                                                 GSE_node_capabilities |= PLUGIN_HTTP_CLIENT;
 120                                         else if (0 == strcmp (pos, "http_server"))
 121                                                 GSE_node_capabilities |= PLUGIN_HTTP_SERVER;
 122                                         else if (0 == strcmp (pos, "https_client"))
 123                                                 GSE_node_capabilities |= PLUGIN_HTTP_CLIENT;
 124                                         else if (0 == strcmp (pos, "https_server"))
 125                                                 GSE_node_capabilities |= PLUGIN_HTTPS_SERVER;
 126                                         else if (0 == strcmp (pos, "wlan"))
 127                                                 GSE_node_capabilities |= PLUGIN_WLAN;
 128           }
 129           GNUNET_free (plugins);
 130   }
 131
 132         /* IPv6 enabled
 133          * FIXE: just having it not enabled is not really sufficient */
 134   if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_yesno (GSE_cfg,
 135                         "NAT", "DISABLEV6"))
 136         GSE_node_capabilities |= HAVE_IPV6;
 137
 138   /* Behind NAT */
 139   if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (GSE_cfg,
 140                         "NAT", "BEHIND_NAT"))
 141         GSE_node_capabilities |= BEHIND_NAT;
 142
 143   for (c1 = 0 ; c1 < 32; c1++)
 144   {
 145                 index = 1;
 146                 index = index << c1;
 147                 if (GNUNET_YES == GNUNET_EXPERIMENTATION_capabilities_have (GSE_node_capabilities, index))
 148                 {
 149                         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "We have `%s'\n",
 150                                         GNUNET_EXPERIMENTATION_capability_to_str(index));
 151                 }
 152   }
 153 }
 154
 155 /**
 156  * Stop the detecting capabilities
 157  */
 158 void
 159 GNUNET_EXPERIMENTATION_capabilities_stop ()
 160 {
 161
 162 }
 163
 164 /* end of gnunet-daemon-experimentation_capabilities.c */