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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_INVALID_RESPONSE:
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_DISCONNECTED:
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)))
146 LOG_GCRY (GNUNET_ERROR_TYPE_ERROR,
150 case GNUNET_SCALARPRODUCT_STATUS_INVALID_RESPONSE:
151 LOG (GNUNET_ERROR_TYPE_ERROR,
152 "Session %s with peer %s failed: invalid response received\n",
153 GNUNET_h2s (&session_key),
154 GNUNET_i2s (&peer_id));
156 case GNUNET_SCALARPRODUCT_STATUS_FAILURE:
157 LOG (GNUNET_ERROR_TYPE_ERROR,
158 "Session %s with peer %s failed: API failure\n",
159 GNUNET_h2s (&session_key),
160 GNUNET_i2s (&peer_id));
162 case GNUNET_SCALARPRODUCT_STATUS_DISCONNECTED:
163 LOG (GNUNET_ERROR_TYPE_ERROR,
164 "Session %s with peer %s was disconnected from service.\n",
165 GNUNET_h2s (&session_key),
166 GNUNET_i2s (&peer_id));
169 LOG (GNUNET_ERROR_TYPE_ERROR,
170 "Session %s with peer %s failed: return code %d\n",
171 GNUNET_h2s (&session_key),
172 GNUNET_i2s (&peer_id),
176 GNUNET_SCHEDULER_shutdown ();
181 * Task run during shutdown.
187 shutdown_task (void *cls)
189 if (NULL != computation)
191 GNUNET_SCALARPRODUCT_cancel (computation);
192 ret = 1; /* aborted */
198 * Main function that will be run by the scheduler.
201 * @param args remaining command-line arguments
202 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
203 * @param cfg configuration
209 const struct GNUNET_CONFIGURATION_Handle *cfg)
211 char *begin = input_elements;
214 struct GNUNET_SCALARPRODUCT_Element *elements;
215 uint32_t element_count = 0;
217 if (NULL == input_elements)
219 LOG (GNUNET_ERROR_TYPE_ERROR,
220 _("You must specify at least one message ID to check!\n"));
223 if ( (NULL == input_session_key) ||
224 (0 == strlen (input_session_key)) )
226 LOG (GNUNET_ERROR_TYPE_ERROR,
227 _("This program needs a session identifier for comparing vectors.\n"));
230 GNUNET_CRYPTO_hash (input_session_key,
231 strlen (input_session_key),
233 if ( (NULL != input_peer_id) &&
235 GNUNET_CRYPTO_eddsa_public_key_from_string (input_peer_id,
236 strlen (input_peer_id),
237 &peer_id.public_key)) )
239 LOG (GNUNET_ERROR_TYPE_ERROR,
240 _("Tried to set initiator mode, as peer ID was given. "
241 "However, `%s' is not a valid peer identifier.\n"),
245 if ( ('\'' == *begin) &&
246 ('\'' == begin[strlen(begin)-1]) )
248 begin[strlen(begin)-1] = '\0';
249 if (strlen (begin) > 0)
252 for (end = begin; 0 != *end; end++)
255 if (0 == element_count)
257 LOG (GNUNET_ERROR_TYPE_ERROR,
258 _("Need elements to compute the scalarproduct, got none.\n"));
262 elements = GNUNET_malloc (sizeof(struct GNUNET_SCALARPRODUCT_Element) * element_count);
264 for (i = 0; i < element_count;i++)
266 struct GNUNET_SCALARPRODUCT_Element element;
267 char* separator = NULL;
269 /* get the length of the current key,value; tupel */
270 for (end = begin; *end != ';'; end++)
275 if ( (NULL == separator) ||
276 (begin == separator) ||
277 (separator == end - 1) )
279 LOG (GNUNET_ERROR_TYPE_ERROR,
280 _("Malformed input, could not parse `%s'\n"),
282 GNUNET_free (elements);
286 /* read the element's key */
287 GNUNET_CRYPTO_hash (begin,
291 /* read the element's value */
293 sscanf (separator + 1,
297 LOG (GNUNET_ERROR_TYPE_ERROR,
298 _("Could not convert `%s' to int64_t.\n"),
300 GNUNET_free (elements);
303 element.value = GNUNET_htonll (element.value);
304 elements[i] = element;
308 if ( ( (NULL != input_peer_id) &&
309 (NULL == (computation
310 = GNUNET_SCALARPRODUCT_start_computation (cfg,
313 elements, element_count,
316 ( (NULL == input_peer_id) &&
317 (NULL == (computation
318 = GNUNET_SCALARPRODUCT_accept_computation (cfg,
320 elements, element_count,
325 _("Failed to initiate computation, were all keys unique?\n"));
326 GNUNET_free (elements);
329 GNUNET_free (elements);
330 GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
337 * The main function to the scalarproduct client.
339 * @param argc number of arguments from the command line
340 * @param argv command line arguments
341 * @return 0 ok, 1 on error
344 main (int argc, char *const *argv)
346 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
347 {'e', "elements", "\"key1,val1;key2,val2;...,keyn,valn;\"",
348 gettext_noop ("A comma separated list of elements to compare as vector with our remote peer."),
349 1, &GNUNET_GETOPT_set_string, &input_elements},
350 {'p', "peer", "PEERID",
351 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."),
352 1, &GNUNET_GETOPT_set_string, &input_peer_id},
353 {'k', "key", "TRANSACTION_ID",
354 gettext_noop ("Transaction ID shared with peer."),
355 1, &GNUNET_GETOPT_set_string, &input_session_key},
356 GNUNET_GETOPT_OPTION_END
360 GNUNET_PROGRAM_run (argc,
362 "gnunet-scalarproduct",
363 gettext_noop ("Calculate the Vectorproduct with a GNUnet peer."),
364 options, &run, NULL)) ? ret : 1;
367 /* end of gnunet-scalarproduct.c */