This file is part of GNUnet.
Copyright (C)
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
#define LOG(kind, ...) GNUNET_log_from(kind,"rps-sampler_elem",__VA_ARGS__)
-// TODO check for overflows
-
/***********************************************************************
* WARNING: This section needs to be reviewed regarding the use of
* functions providing (pseudo)randomness!
***********************************************************************/
-// TODO care about invalid input of the caller (size 0 or less...)
-
/**
* Reinitialise a previously initialised sampler element.
*
- * @param sampler pointer to the memory that keeps the value.
+ * @param sampler_el The sampler element to (re-) initialise
*/
void
-RPS_sampler_elem_reinit (struct RPS_SamplerElement *sampler_el)
+RPS_sampler_elem_reinit (struct RPS_SamplerElement *sampler_elem)
{
- sampler_el->is_empty = EMPTY;
+ sampler_elem->is_empty = EMPTY;
// I guess I don't need to call GNUNET_CRYPTO_hmac_derive_key()...
GNUNET_CRYPTO_random_block(GNUNET_CRYPTO_QUALITY_STRONG,
- &(sampler_el->auth_key.key),
+ &(sampler_elem->auth_key.key),
GNUNET_CRYPTO_HASH_LENGTH);
- #ifdef TO_FILE
- /* Create a file(-name) to store internals to */
- char *name_buf;
- name_buf = auth_key_to_string (sampler_el->auth_key);
-
- sampler_el->file_name = create_file (name_buf);
- GNUNET_free (name_buf);
- #endif /* TO_FILE */
-
- sampler_el->last_client_request = GNUNET_TIME_UNIT_FOREVER_ABS;
+ sampler_elem->last_client_request = GNUNET_TIME_UNIT_FOREVER_ABS;
- sampler_el->birth = GNUNET_TIME_absolute_get ();
- sampler_el->num_peers = 0;
- sampler_el->num_change = 0;
+ sampler_elem->birth = GNUNET_TIME_absolute_get ();
+ sampler_elem->num_peers = 0;
+ sampler_elem->num_change = 0;
}
/**
- * Input an PeerID into the given sampler element.
+ * Destroy a sampler element.
*
- * @param sampler the sampler the @a s_elem belongs to.
- * Needed to know the
+ * @param sampler_elem the element to destroy
*/
void
-RPS_sampler_elem_next (struct RPS_SamplerElement *s_elem,
- const struct GNUNET_PeerIdentity *other)
+RPS_sampler_elem_destroy (struct RPS_SamplerElement *sampler_elem)
{
- struct GNUNET_HashCode other_hash;
+ GNUNET_free (sampler_elem);
+}
- s_elem->num_peers++;
- to_file (s_elem->file_name,
- "Got id %s",
- GNUNET_i2s_full (other));
+/**
+ * Update a sampler element with a PeerID
+ *
+ * @param sampler_elem The sampler element to update
+ * @param new_ID The PeerID to update with
+ */
+void
+RPS_sampler_elem_next (struct RPS_SamplerElement *sampler_elem,
+ const struct GNUNET_PeerIdentity *new_ID)
+{
+ struct GNUNET_HashCode other_hash;
+
+ sampler_elem->num_peers++;
- if (0 == GNUNET_CRYPTO_cmp_peer_identity (other, &(s_elem->peer_id)))
+ if (0 == GNUNET_memcmp (new_ID, &(sampler_elem->peer_id)))
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Have already PeerID %s\n",
- GNUNET_i2s (&(s_elem->peer_id)));
+ GNUNET_i2s (&(sampler_elem->peer_id)));
}
else
{
- GNUNET_CRYPTO_hmac(&s_elem->auth_key,
- other,
+ GNUNET_CRYPTO_hmac(&sampler_elem->auth_key,
+ new_ID,
sizeof(struct GNUNET_PeerIdentity),
&other_hash);
- if (EMPTY == s_elem->is_empty)
+ if (EMPTY == sampler_elem->is_empty)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Got PeerID %s; Simply accepting (was empty previously).\n",
- GNUNET_i2s(other));
- s_elem->peer_id = *other;
- s_elem->peer_id_hash = other_hash;
+ GNUNET_i2s(new_ID));
+ sampler_elem->peer_id = *new_ID;
+ sampler_elem->peer_id_hash = other_hash;
- s_elem->num_change++;
+ sampler_elem->num_change++;
}
- else if (0 > GNUNET_CRYPTO_hash_cmp (&other_hash, &s_elem->peer_id_hash))
+ else if (0 > GNUNET_CRYPTO_hash_cmp (&other_hash, &sampler_elem->peer_id_hash))
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Discarding old PeerID %s\n",
- GNUNET_i2s (&s_elem->peer_id));
- s_elem->peer_id = *other;
- s_elem->peer_id_hash = other_hash;
+ GNUNET_i2s (&sampler_elem->peer_id));
+ sampler_elem->peer_id = *new_ID;
+ sampler_elem->peer_id_hash = other_hash;
- s_elem->num_change++;
+ sampler_elem->num_change++;
}
else
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Keeping old PeerID %s\n",
- GNUNET_i2s (&s_elem->peer_id));
+ GNUNET_i2s (&sampler_elem->peer_id));
}
}
- s_elem->is_empty = NOT_EMPTY;
-
- to_file (s_elem->file_name,
- "Now holding %s",
- GNUNET_i2s_full (&s_elem->peer_id));
+ sampler_elem->is_empty = NOT_EMPTY;
}
/**
- * Initialise the min-wise independent function of the given sampler element.
+ * Set the min-wise independent function of the given sampler element.
*
- * @param s_elem the sampler element
+ * @param sampler_elem the sampler element
* @param auth_key the key to use
*/
void
-RPS_sampler_elem_set (struct RPS_SamplerElement *s_elem,
+RPS_sampler_elem_set (struct RPS_SamplerElement *sampler_elem,
struct GNUNET_CRYPTO_AuthKey auth_key)
{
- s_elem->auth_key = auth_key;
-
- #ifdef TO_FILE
- /* Create a file(-name) to store internals to */
- char *name_buf;
- name_buf = auth_key_to_string (s_elem->auth_key);
-
- s_elem->file_name = create_file (name_buf);
- GNUNET_free (name_buf);
- #endif /* TO_FILE */
+ sampler_elem->auth_key = auth_key;
}
/* end of gnunet-service-rps.c */
projects / oweals / gnunet.git / blobdiff