2 This file is part of GNUnet.
3 (C) 2012,2013 Christian Grothoff (and other contributing authors)
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.
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.
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.
22 * @file experimentation/gnunet-daemon-experimentation_experiments.c
23 * @brief experimentation daemon: experiment management
24 * @author Christian Grothoff
25 * @author Matthias Wachs
28 #include "gnunet_util_lib.h"
29 #include "gnunet_core_service.h"
30 #include "gnunet_statistics_service.h"
31 #include "gnunet-daemon-experimentation.h"
35 * Hashmap containing valid experiment issuers.
37 struct GNUNET_CONTAINER_MultiHashMap *valid_issuers;
40 * Hashmap containing valid experiments
42 static struct GNUNET_CONTAINER_MultiHashMap *experiments;
46 * Verify experiment signature
50 * @return #GNUNET_OK or #GNUNET_SYSERR
53 experiment_verify (struct Issuer *i, struct Experiment *e)
55 GNUNET_assert (NULL != i);
56 GNUNET_assert (NULL != e);
58 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
59 "Verification: to be implemented\n");
65 free_experiment (void *cls,
66 const struct GNUNET_HashCode * key,
69 struct Experiment *e = value;
71 GNUNET_break (0 == GNUNET_CONTAINER_multihashmap_remove (experiments, key, value));
72 GNUNET_free_non_null (e->description);
73 GNUNET_free_non_null (e->name);
84 * @param value the issuer element to free
85 * @return GNUNET_OK to continue
88 free_issuer (void *cls,
89 const struct GNUNET_HashCode * key,
92 struct Issuer *i = value;
94 GNUNET_break (0 == GNUNET_CONTAINER_multihashmap_remove (valid_issuers,
103 * Is peer a valid issuer
105 * @return #GNUNET_YES or #GNUNET_NO
108 GED_experiments_issuer_accepted (struct GNUNET_PeerIdentity *issuer_id)
110 struct GNUNET_HashCode hash;
112 GNUNET_CRYPTO_hash (issuer_id, sizeof (struct GNUNET_PeerIdentity), &hash);
113 if (GNUNET_CONTAINER_multihashmap_contains (valid_issuers, &hash))
120 * Get the key under which the given experiment is stored in the
124 get_experment_key (const struct GNUNET_PeerIdentity *issuer,
126 const struct GNUNET_TIME_Absolute version,
127 struct GNUNET_HashCode *key)
129 GNUNET_assert (GNUNET_YES ==
130 GNUNET_CRYPTO_kdf (key, sizeof (struct GNUNET_HashCode),
131 issuer, sizeof (struct GNUNET_PeerIdentity),
133 &version, sizeof (version),
139 * Find an experiment based on issuer name and version
141 * @param issuer the issuer
142 * @param name experiment name
143 * @param version experiment version
144 * @return the experiment or NULL if not found
147 GED_experiments_find (const struct GNUNET_PeerIdentity *issuer,
149 const struct GNUNET_TIME_Absolute version)
151 struct GNUENT_HashCode hc;
153 get_experiment_key (issuer,
157 return GNUNET_CONTAINER_multihashmap_get (experiments,
166 GNUNET_EXPERIMENTATION_experiments_get_cb get_cb;
168 struct GNUNET_CRYPTO_EccPublicSignKey *issuer;
174 const struct GNUNET_HashCode *key,
177 struct GetCtx *get_ctx = cls;
178 struct Experiment *e = value;
180 if (0 == memcmp (e->issuer,
182 sizeof (struct GNUNET_CRYPTO_EccPublicSignKey))
183 get_ctx->get_cb (get_ctx->n, e);
189 GED_experiments_get (struct Node *n,
190 struct GNUNET_CRYPTO_EccPublicSignKey *issuer,
191 GNUNET_EXPERIMENTATION_experiments_get_cb get_cb)
193 struct GetCtx get_ctx;
195 GNUNET_assert (NULL != n);
196 GNUNET_assert (NULL != experiments);
197 GNUNET_assert (NULL != get_cb);
199 get_ctx.get_cb = get_cb;
200 get_ctx.issuer = issuer;
201 GNUNET_CONTAINER_multihashmap_iterate (experiments,
203 get_cb (n, NULL); // FIXME: ugly, end is easily signalled as we return: synchronous API!
208 * Add a new experiment
211 GNUNET_EXPERIMENTATION_experiments_add (struct Issuer *i,
213 const struct GNUNET_CRYPTO_EccPublicKey *issuer_id,
214 struct GNUNET_TIME_Absolute version,
216 uint32_t required_capabilities,
217 struct GNUNET_TIME_Absolute start,
218 struct GNUNET_TIME_Relative frequency,
219 struct GNUNET_TIME_Relative duration,
220 struct GNUNET_TIME_Absolute stop)
222 struct Experiment *e;
224 e = GNUNET_new (struct Experiment);
225 e->name = GNUNET_strdup (name);
226 e->issuer = issuer_id;
227 e->version = version;
228 if (NULL != description)
229 e->description = GNUNET_strdup (description);
230 e->required_capabilities = required_capabilities;
232 e->frequency = frequency;
233 e->duration = duration;
236 /* verify experiment */
237 if (GNUNET_SYSERR == experiment_verify (i, e))
239 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
240 _("Experiment `%s': Experiment signature is invalid\n"),
243 GNUNET_free_non_null (e->name);
244 GNUNET_free_non_null (e->description);
245 return GNUNET_SYSERR;
248 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
249 _("Adding experiment `%s' running from `%s' to `%s' every %llu sec. for %llu sec. \n"),
251 GNUNET_STRINGS_absolute_time_to_string (start),
252 GNUNET_STRINGS_absolute_time_to_string (stop),
253 (long long unsigned int) frequency.rel_value_us / 1000000LL,
254 (long long unsigned int) duration.rel_value_us / 1000000LL);
255 GNUNET_CONTAINER_multihashmap_put (experiments,
256 &e->issuer.hashPubKey,
258 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
259 GNUNET_STATISTICS_set (GED_stats,
261 GNUNET_CONTAINER_multihashmap_size (experiments), GNUNET_NO);
268 * Parse a configuration section containing experiments
270 * @param cls configuration handle
271 * @param name section name
274 exp_file_iterator (void *cls,
277 struct GNUNET_CONFIGURATION_Handle *exp = cls;
280 unsigned long long number;
281 /* Experiment values */
282 struct GNUNET_PeerIdentity issuer;
283 struct GNUNET_TIME_Absolute version;
285 uint32_t required_capabilities;
286 struct GNUNET_TIME_Absolute start ;
287 struct GNUNET_TIME_Absolute stop;
288 struct GNUNET_TIME_Relative frequency;
289 struct GNUNET_TIME_Relative duration;
291 /* Mandatory fields */
294 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_string (exp, name, "ISSUER", &val))
296 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
297 _("Experiment `%s': Issuer missing\n"), name);
300 if (GNUNET_SYSERR == GNUNET_CRYPTO_hash_from_string (val, &issuer.hashPubKey))
302 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
303 _("Experiment `%s': Issuer invalid\n"), name);
307 if (NULL == (i = GNUNET_CONTAINER_multihashmap_get (valid_issuers, &issuer.hashPubKey)))
309 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
310 _("Experiment `%s': Issuer not accepted!\n"), name);
317 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (exp, name, "VERSION", &number))
319 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
320 _("Experiment `%s': Version missing or invalid \n"), name);
323 version.abs_value_us = number; // FIXME: what is this supposed to be? Version != TIME!???
325 /* Required capabilities */
326 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (exp, name, "CAPABILITIES", &number))
328 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
329 _("Experiment `%s': Required capabilities missing \n"), name);
332 if (number > UINT32_MAX)
334 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
335 _("Experiment `%s': Required capabilities invalid \n"), name);
338 required_capabilities = number;
340 /* Optional fields */
343 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_string (exp, name, "DESCRIPTION", &description))
346 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (exp, name, "START", (long long unsigned int *) &start.abs_value_us))
347 start = GNUNET_TIME_UNIT_ZERO_ABS;
349 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_time (exp, name, "FREQUENCY", &frequency))
350 frequency = EXP_DEFAULT_EXP_FREQ;
351 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_time (exp, name, "DURATION", &duration))
352 duration = EXP_DEFAULT_EXP_DUR;
353 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (exp, name, "STOP", (long long unsigned int *)&stop.abs_value_us))
354 stop = GNUNET_TIME_UNIT_FOREVER_ABS;
356 GNUNET_EXPERIMENTATION_experiments_add (i, name, issuer, version,
357 description, required_capabilities,
358 start, frequency, duration, stop);
359 GNUNET_free_non_null (description);
364 * Load experiments from file
366 * @param file source file
369 load_file (const char * file)
371 struct GNUNET_CONFIGURATION_Handle *exp = GNUNET_CONFIGURATION_create();
376 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_parse (exp, file))
378 GNUNET_CONFIGURATION_destroy (exp);
379 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
380 _("Failed to parse file `%s'\n"),
384 GNUNET_CONFIGURATION_iterate_sections (exp, &exp_file_iterator, exp);
385 GNUNET_CONFIGURATION_destroy (exp);
390 * Start experiments management
393 GED_experiments_start ()
400 struct GNUNET_PeerIdentity issuer_ID;
401 struct GNUNET_CRYPTO_EccPublicSignKey pub;
402 struct GNUNET_HashCode hash;
404 /* Load valid issuer */
406 GNUNET_CONFIGURATION_get_value_string (GED_cfg,
411 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
412 _("No valid experiment issuers configured! Set value to public keys of issuers! Exiting.\n"));
413 GED_experiments_stop ();
414 return GNUNET_SYSERR;
417 valid_issuers = GNUNET_CONTAINER_multihashmap_create (10, GNUNET_NO);
418 for (pos = strtok (issuers, " "); pos != NULL; pos = strtok (NULL, " "))
420 if (GNUNET_SYSERR == GNUNET_CRYPTO_ecc_public_sign_key_from_string (pos,
424 GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
427 _("Invalid value for public key\n"));
428 GED_experiments_stop ();
429 return GNUNET_SYSERR;
431 i = GNUNET_new (struct Issuer);
432 i->pubkey = issuer_ID;
433 GNUNET_CRYPTO_hash( &issuer_ID, sizeof (issuer_ID), &hash);
434 GNUNET_CONTAINER_multihashmap_put (valid_issuers,
437 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
439 GNUNET_free (issuers);
440 if (0 == GNUNET_CONTAINER_multihashmap_size (valid_issuers))
442 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
443 _("No valid experiment issuers configured! Set value to public keys of issuers! Exiting.\n"));
444 GED_experiments_stop ();
445 return GNUNET_SYSERR;
447 GNUNET_STATISTICS_set (GED_stats,
449 GNUNET_CONTAINER_multihashmap_size (valid_issuers),
452 experiments = GNUNET_CONTAINER_multihashmap_create (10, GNUNET_NO);
453 /* Load experiments from file */
455 GNUNET_CONFIGURATION_get_value_string (GED_cfg,
461 if (GNUNET_YES != GNUNET_DISK_file_test (file))
463 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
464 _("Cannot read experiments file `%s'\n"), file);
475 * Stop experiments management
478 GED_experiments_stop ()
480 if (NULL != valid_issuers)
482 GNUNET_CONTAINER_multihashmap_iterate (valid_issuers, &free_issuer, NULL);
483 GNUNET_CONTAINER_multihashmap_destroy (valid_issuers);
485 valid_issuers = NULL;
486 if (NULL != experiments)
488 GNUNET_CONTAINER_multihashmap_iterate (experiments, &free_experiment, NULL);
489 GNUNET_CONTAINER_multihashmap_destroy (experiments);
494 /* end of gnunet-daemon-experimentation_experiments.c */