2 This file is part of GNUnet.
3 (C) 2013, 2014 Christian Grothoff (and other contributing authors)
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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
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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.
15 You should have received a copy of the GNU General Public License
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17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 * @file scalarproduct/gnunet-scalarproduct.c
23 * @brief scalarproduct client
24 * @author Christian M. Fuchs
26 #define GCRYPT_NO_DEPRECATED
31 #include "gnunet_util_lib.h"
32 #include "gnunet_scalarproduct_service.h"
33 #include "gnunet_protocols.h"
34 #include "scalarproduct.h"
36 #define LOG(kind,...) GNUNET_log_from (kind, "gnunet-scalarproduct",__VA_ARGS__)
40 * the session key identifying this computation
42 static struct GNUNET_HashCode session_key;
45 * PeerID we want to compute a scalar product with
47 static struct GNUNET_PeerIdentity peer_id;
50 * Option -p: destination peer identity for checking message-ids with
52 static char *input_peer_id;
55 * Option -p: destination peer identity for checking message-ids with
57 static char *input_session_key;
60 * Option -e: vector to calculate a scalarproduct with
62 static char *input_elements;
70 * our Scalarproduct Computation handle
72 static struct GNUNET_SCALARPRODUCT_ComputationHandle *computation;
76 * Callback called if we are initiating a new computation session
79 * @param status if our job was successfully processed
82 responder_callback (void *cls,
83 enum GNUNET_SCALARPRODUCT_ResponseStatus status)
87 case GNUNET_SCALARPRODUCT_Status_Success:
89 LOG (GNUNET_ERROR_TYPE_INFO,
90 "Session %s concluded.\n",
91 GNUNET_h2s (&session_key));
93 case GNUNET_SCALARPRODUCT_Status_InvalidResponse:
94 LOG (GNUNET_ERROR_TYPE_ERROR,
95 "Session %s failed: invalid response\n",
96 GNUNET_h2s (&session_key));
98 case GNUNET_SCALARPRODUCT_Status_Failure:
99 LOG (GNUNET_ERROR_TYPE_ERROR,
100 "Session %s failed: service failure\n",
101 GNUNET_h2s (&session_key));
103 case GNUNET_SCALARPRODUCT_Status_ServiceDisconnected:
104 LOG (GNUNET_ERROR_TYPE_ERROR,
105 "Session %s failed: service disconnect!\n",
106 GNUNET_h2s (&session_key));
109 LOG (GNUNET_ERROR_TYPE_ERROR,
110 "Session %s failed: return code %d\n",
111 GNUNET_h2s (&session_key),
115 GNUNET_SCHEDULER_shutdown ();
120 * Callback called if we are initiating a new computation session
123 * @param status if our job was successfully processed
124 * @param result the result in gnu/gcry MPI format
127 requester_callback (void *cls,
128 enum GNUNET_SCALARPRODUCT_ResponseStatus status,
136 case GNUNET_SCALARPRODUCT_Status_Success:
137 if (0 == (rc = gcry_mpi_aprint (GCRYMPI_FMT_HEX, &buf, NULL, result)))
143 LOG_GCRY (GNUNET_ERROR_TYPE_ERROR,
147 case GNUNET_SCALARPRODUCT_Status_InvalidResponse:
148 LOG (GNUNET_ERROR_TYPE_ERROR,
149 "Session %s with peer %s failed: invalid response received\n",
150 GNUNET_h2s (&session_key),
151 GNUNET_i2s (&peer_id));
153 case GNUNET_SCALARPRODUCT_Status_Failure:
154 LOG (GNUNET_ERROR_TYPE_ERROR,
155 "Session %s with peer %s failed: API failure\n",
156 GNUNET_h2s (&session_key),
157 GNUNET_i2s (&peer_id));
159 case GNUNET_SCALARPRODUCT_Status_ServiceDisconnected:
160 LOG (GNUNET_ERROR_TYPE_ERROR,
161 "Session %s with peer %s was disconnected from service.\n",
162 GNUNET_h2s (&session_key),
163 GNUNET_i2s (&peer_id));
166 LOG (GNUNET_ERROR_TYPE_ERROR,
167 "Session %s with peer %s failed: return code %d\n",
168 GNUNET_h2s (&session_key),
169 GNUNET_i2s (&peer_id),
173 GNUNET_SCHEDULER_shutdown ();
178 * Task run during shutdown.
184 shutdown_task (void *cls,
185 const struct GNUNET_SCHEDULER_TaskContext *tc)
187 if (NULL != computation)
189 GNUNET_SCALARPRODUCT_cancel (computation);
190 ret = 1; /* aborted */
196 * Main function that will be run by the scheduler.
199 * @param args remaining command-line arguments
200 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
201 * @param cfg configuration
207 const struct GNUNET_CONFIGURATION_Handle *cfg)
209 char *begin = input_elements;
212 struct GNUNET_SCALARPRODUCT_Element *elements;
213 uint32_t element_count = 0;
215 if (NULL == input_elements)
217 LOG (GNUNET_ERROR_TYPE_ERROR,
218 _("You must specify at least one message ID to check!\n"));
221 if ( (NULL == input_session_key) ||
222 (0 == strlen (input_session_key)) )
224 LOG (GNUNET_ERROR_TYPE_ERROR,
225 _("This program needs a session identifier for comparing vectors.\n"));
228 GNUNET_CRYPTO_hash (input_session_key,
229 strlen (input_session_key),
231 if ( (NULL != input_peer_id) &&
233 GNUNET_CRYPTO_eddsa_public_key_from_string (input_peer_id,
234 strlen (input_peer_id),
235 &peer_id.public_key)) )
237 LOG (GNUNET_ERROR_TYPE_ERROR,
238 _("Tried to set initiator mode, as peer ID was given. "
239 "However, `%s' is not a valid peer identifier.\n"),
244 for (end = begin; 0 != *end; end++)
247 if (0 == element_count) {
248 LOG (GNUNET_ERROR_TYPE_ERROR,
249 _("Need elements to compute the vectorproduct, got none.\n"));
253 elements = GNUNET_malloc (sizeof(struct GNUNET_SCALARPRODUCT_Element) * element_count);
255 for (i = 0; i < element_count;i++)
257 struct GNUNET_SCALARPRODUCT_Element element;
258 char* separator = NULL;
260 /* get the length of the current key,value; tupel */
261 for (end = begin; *end != ';'; end++)
266 if ( (NULL == separator) ||
267 (begin == separator) ||
268 (separator == end - 1) )
270 LOG (GNUNET_ERROR_TYPE_ERROR,
271 _("Malformed input, could not parse `%s'\n"),
273 GNUNET_free (elements);
277 /* read the element's key */
279 GNUNET_CRYPTO_hash (begin,
283 /* read the element's value */
285 sscanf (separator + 1,
289 LOG (GNUNET_ERROR_TYPE_ERROR,
290 _("Could not convert `%s' to int64_t.\n"),
292 GNUNET_free(elements);
295 elements[i] = element;
299 if ( ( (NULL != input_peer_id) &&
300 (NULL == (computation
301 = GNUNET_SCALARPRODUCT_start_computation (cfg,
304 elements, element_count,
307 ( (NULL == input_peer_id) &&
308 (NULL == (computation
309 = GNUNET_SCALARPRODUCT_accept_computation (cfg,
311 elements, element_count,
316 GNUNET_free (elements);
319 GNUNET_free (elements);
320 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
328 * The main function to the scalarproduct client.
330 * @param argc number of arguments from the command line
331 * @param argv command line arguments
332 * @return 0 ok, 1 on error
335 main (int argc, char *const *argv)
337 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
338 {'e', "elements", "\"key1,val1;key2,val2;...,keyn,valn;\"",
339 gettext_noop ("A comma separated list of elements to compare as vector with our remote peer."),
340 1, &GNUNET_GETOPT_set_string, &input_elements},
341 {'p', "peer", "PEERID",
342 gettext_noop ("[Optional] peer to calculate our scalarproduct with. If this parameter is not given, the service will wait for a remote peer to compute the request."),
343 1, &GNUNET_GETOPT_set_string, &input_peer_id},
344 {'k', "key", "TRANSACTION_ID",
345 gettext_noop ("Transaction ID shared with peer."),
346 1, &GNUNET_GETOPT_set_string, &input_session_key},
347 GNUNET_GETOPT_OPTION_END
351 GNUNET_PROGRAM_run (argc,
353 "gnunet-scalarproduct",
354 gettext_noop ("Calculate the Vectorproduct with a GNUnet peer."),
355 options, &run, NULL)) ? ret : 1;
358 /* end of gnunet-scalarproduct.c */