2 This file is part of GNUnet.
3 (C) 2009 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 namestore/gnunet-service-namestore.c
23 * @brief namestore for the GNUnet naming system
24 * @author Matthias Wachs
27 #include "gnunet_getopt_lib.h"
28 #include "gnunet_service_lib.h"
29 #include "gnunet_namestore_service.h"
30 #include "gnunet_namestore_plugin.h"
31 #include "gnunet_signatures.h"
32 #include "namestore.h"
37 * A namestore operation.
39 struct GNUNET_NAMESTORE_ZoneIteration
41 struct GNUNET_NAMESTORE_ZoneIteration *next;
42 struct GNUNET_NAMESTORE_ZoneIteration *prev;
44 struct GNUNET_NAMESTORE_Client * client;
57 struct GNUNET_NAMESTORE_Client
59 struct GNUNET_NAMESTORE_Client *next;
60 struct GNUNET_NAMESTORE_Client *prev;
62 struct GNUNET_SERVER_Client * client;
64 struct GNUNET_NAMESTORE_ZoneIteration *op_head;
65 struct GNUNET_NAMESTORE_ZoneIteration *op_tail;
71 * Configuration handle.
73 const struct GNUNET_CONFIGURATION_Handle *GSN_cfg;
75 static struct GNUNET_NAMESTORE_PluginFunctions *GSN_database;
78 * Our notification context.
80 static struct GNUNET_SERVER_NotificationContext *snc;
82 static char *db_lib_name;
84 static struct GNUNET_NAMESTORE_Client *client_head;
85 static struct GNUNET_NAMESTORE_Client *client_tail;
89 * Task run during shutdown.
95 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
97 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping namestore service\n");
99 struct GNUNET_NAMESTORE_ZoneIteration * no;
100 struct GNUNET_NAMESTORE_ZoneIteration * tmp;
101 struct GNUNET_NAMESTORE_Client * nc;
102 struct GNUNET_NAMESTORE_Client * next;
104 GNUNET_SERVER_notification_context_destroy (snc);
107 for (nc = client_head; nc != NULL; nc = next)
110 for (no = nc->op_head; no != NULL; no = tmp)
113 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, no);
117 GNUNET_SERVER_client_drop(nc->client);
118 GNUNET_CONTAINER_DLL_remove (client_head, client_tail, nc);
122 GNUNET_break (NULL == GNUNET_PLUGIN_unload (db_lib_name, GSN_database));
123 GNUNET_free (db_lib_name);
126 static struct GNUNET_NAMESTORE_Client *
127 client_lookup (struct GNUNET_SERVER_Client *client)
129 struct GNUNET_NAMESTORE_Client * nc;
131 GNUNET_assert (NULL != client);
133 for (nc = client_head; nc != NULL; nc = nc->next)
135 if (client == nc->client)
142 * Called whenever a client is disconnected. Frees our
143 * resources associated with that client.
146 * @param client identification of the client
149 client_disconnect_notification (void *cls, struct GNUNET_SERVER_Client *client)
151 struct GNUNET_NAMESTORE_ZoneIteration * no;
152 struct GNUNET_NAMESTORE_Client * nc;
156 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p disconnected \n", client);
158 nc = client_lookup (client);
160 if ((NULL == client) || (NULL == nc))
163 for (no = nc->op_head; no != NULL; no = no->next)
165 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, no);
169 GNUNET_SERVER_client_drop(nc->client);
170 GNUNET_CONTAINER_DLL_remove (client_head, client_tail, nc);
176 static void handle_start (void *cls,
177 struct GNUNET_SERVER_Client * client,
178 const struct GNUNET_MessageHeader * message)
180 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected\n", client);
182 struct GNUNET_NAMESTORE_Client * nc = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_Client));
184 GNUNET_SERVER_notification_context_add (snc, client);
185 GNUNET_CONTAINER_DLL_insert(client_head, client_tail, nc);
186 GNUNET_SERVER_client_keep (client);
187 GNUNET_SERVER_receive_done (client, GNUNET_OK);
190 struct LookupNameContext
192 struct GNUNET_NAMESTORE_Client *nc;
194 uint32_t record_type;
195 GNUNET_HashCode *zone;
199 void drop_iterator (void *cls,
200 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
201 struct GNUNET_TIME_Absolute expire,
204 const struct GNUNET_NAMESTORE_RecordData *rd,
205 const struct GNUNET_CRYPTO_RsaSignature *signature)
207 GNUNET_HashCode zone_hash;
209 if (NULL != zone_key)
211 GNUNET_CRYPTO_hash(zone_key, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &zone_hash);
212 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Deleting zone `%s'\n", GNUNET_h2s (&zone_hash));
213 GSN_database->delete_zone (GSN_database->cls, &zone_hash);
217 (*stop) = GNUNET_YES;
223 handle_lookup_name_it (void *cls,
224 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
225 struct GNUNET_TIME_Absolute expire,
227 unsigned int rd_count,
228 const struct GNUNET_NAMESTORE_RecordData *rd,
229 const struct GNUNET_CRYPTO_RsaSignature *signature)
232 struct LookupNameContext *lnc = cls;
233 struct LookupNameResponseMessage *lnr_msg;
234 struct GNUNET_NAMESTORE_RecordData *rd_selected = NULL;
241 int copied_elements = 0;
242 int contains_signature = 0;
246 name_len = strlen(name) + 1;
248 /* count records to copy */
251 if (lnc->record_type != 0)
253 /* special record type needed */
254 for (c = 0; c < rd_count; c ++)
255 if (rd[c].record_type == lnc->record_type)
256 copied_elements++; /* found matching record */
257 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u records with type %u for name `%s' in zone `%s'\n",
258 copied_elements, lnc->record_type, lnc->name, GNUNET_h2s(lnc->zone));
259 rd_selected = GNUNET_malloc (copied_elements * sizeof (struct GNUNET_NAMESTORE_RecordData));
261 for (c = 0; c < rd_count; c ++)
263 if (rd[c].record_type == lnc->record_type)
265 /* found matching record */
266 memcpy (&rd_selected[copied_elements], &rd[c], sizeof (struct GNUNET_NAMESTORE_RecordData));
273 copied_elements = rd_count;
274 rd_selected = (struct GNUNET_NAMESTORE_RecordData *) rd;
282 expire = GNUNET_TIME_UNIT_ZERO_ABS;
285 rd_ser_len = GNUNET_NAMESTORE_records_get_size(copied_elements, rd_selected);
286 char rd_ser[rd_ser_len];
287 GNUNET_NAMESTORE_records_serialize(copied_elements, rd_selected, rd_ser_len, rd_ser);
289 if (rd_selected != rd)
290 GNUNET_free (rd_selected);
292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u records for name `%s' in zone `%s'\n",
293 copied_elements, lnc->name, GNUNET_h2s(lnc->zone));
295 if ((copied_elements == rd_count) && (NULL != signature))
296 contains_signature = GNUNET_YES;
298 contains_signature = GNUNET_NO;
300 r_size = sizeof (struct LookupNameResponseMessage) +
301 sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) +
305 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "NAMESTORE_LOOKUP_NAME_RESPONSE");
306 lnr_msg = GNUNET_malloc (r_size);
307 lnr_msg->gns_header.header.type = ntohs (GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME_RESPONSE);
308 lnr_msg->gns_header.header.size = ntohs (r_size);
309 lnr_msg->gns_header.r_id = htonl (lnc->request_id);
310 lnr_msg->rd_count = htons (copied_elements);
311 lnr_msg->rd_len = htons (rd_ser_len);
312 lnr_msg->name_len = htons (name_len);
313 lnr_msg->contains_sig = htons (contains_signature);
314 lnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
316 if (zone_key != NULL)
317 lnr_msg->public_key = (*zone_key);
319 memset(&lnr_msg->public_key, '\0', sizeof (lnr_msg->public_key));
320 if (GNUNET_YES == contains_signature)
321 lnr_msg->signature = *signature;
323 memset (&lnr_msg->signature, '\0', sizeof (lnr_msg->signature));
325 name_tmp = (char *) &lnr_msg[1];
326 rd_tmp = &name_tmp[name_len];
328 memcpy (name_tmp, name, name_len);
329 memcpy (rd_tmp, rd_ser, rd_ser_len);
331 GNUNET_SERVER_notification_context_unicast (snc, lnc->nc->client, (const struct GNUNET_MessageHeader *) lnr_msg, GNUNET_NO);
333 GNUNET_free (lnr_msg);
336 static void handle_lookup_name (void *cls,
337 struct GNUNET_SERVER_Client * client,
338 const struct GNUNET_MessageHeader * message)
340 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_LOOKUP_NAME");
341 struct LookupNameContext lnc;
342 struct GNUNET_NAMESTORE_Client *nc;
348 if (ntohs (message->size) < sizeof (struct LookupNameMessage))
351 GNUNET_SERVER_receive_done (client, GNUNET_OK);
355 nc = client_lookup(client);
359 GNUNET_SERVER_receive_done (client, GNUNET_OK);
363 struct LookupNameMessage * ln_msg = (struct LookupNameMessage *) message;
364 rid = ntohl (ln_msg->gns_header.r_id);
365 name_len = ntohl (ln_msg->name_len);
366 type = ntohl (ln_msg->record_type);
368 if ((name_len == 0) || (name_len > 256))
371 GNUNET_SERVER_receive_done (client, GNUNET_OK);
375 name = (char *) &ln_msg[1];
376 if (name[name_len -1] != '\0')
379 GNUNET_SERVER_receive_done (client, GNUNET_OK);
384 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up all records for name `%s' in zone `%s'\n", name, GNUNET_h2s(&ln_msg->zone));
386 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up records with type %u for name `%s' in zone `%s'\n", type, name, GNUNET_h2s(&ln_msg->zone));
388 /* do the actual lookup */
389 lnc.request_id = rid;
391 lnc.record_type = type;
393 lnc.zone = &ln_msg->zone;
394 GSN_database->iterate_records(GSN_database->cls, &ln_msg->zone, name, 0, &handle_lookup_name_it, &lnc);
396 GNUNET_SERVER_receive_done (client, GNUNET_OK);
399 static void handle_record_put (void *cls,
400 struct GNUNET_SERVER_Client * client,
401 const struct GNUNET_MessageHeader * message)
403 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_PUT");
404 struct GNUNET_NAMESTORE_Client *nc;
405 struct GNUNET_TIME_Absolute expire;
406 struct GNUNET_CRYPTO_RsaSignature *signature;
407 struct RecordPutResponseMessage rpr_msg;
416 int res = GNUNET_SYSERR;
418 if (ntohs (message->size) < sizeof (struct RecordPutMessage))
421 GNUNET_SERVER_receive_done (client, GNUNET_OK);
425 nc = client_lookup (client);
429 GNUNET_SERVER_receive_done (client, GNUNET_OK);
433 struct RecordPutMessage * rp_msg = (struct RecordPutMessage *) message;
435 rid = ntohl (rp_msg->gns_header.r_id);
436 msg_size = ntohs (rp_msg->gns_header.header.size);
437 name_len = ntohs (rp_msg->name_len);
438 rd_count = ntohs (rp_msg->rd_count);
439 rd_ser_len = ntohs(rp_msg->rd_len);
441 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
444 GNUNET_SERVER_receive_done (client, GNUNET_OK);
448 if ((rd_count < 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
451 GNUNET_SERVER_receive_done (client, GNUNET_OK);
455 msg_size_exp = sizeof (struct RecordPutMessage) + name_len + rd_ser_len;
456 if (msg_size != msg_size_exp)
458 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
460 GNUNET_SERVER_receive_done (client, GNUNET_OK);
463 if ((name_len == 0) || (name_len > 256))
466 GNUNET_SERVER_receive_done (client, GNUNET_OK);
470 name = (char *) &rp_msg[1];
472 if (name[name_len -1] != '\0')
475 GNUNET_SERVER_receive_done (client, GNUNET_OK);
479 expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
480 signature = (struct GNUNET_CRYPTO_RsaSignature *) &rp_msg->signature;
482 rd_ser = &name[name_len];
483 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
484 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
485 if (res != GNUNET_OK)
491 GNUNET_HashCode zone_hash;
492 GNUNET_CRYPTO_hash (&rp_msg->public_key, sizeof (rp_msg->public_key), &zone_hash);
494 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting %u record for name `%s' in zone `%s'\n", rd_count, name, GNUNET_h2s(&zone_hash));
496 /* Database operation */
497 res = GSN_database->put_records(GSN_database->cls,
504 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting record for name `%s': %s\n",
505 name, (res == GNUNET_OK) ? "OK" : "FAIL");
509 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_PUT_RESPONSE");
510 rpr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT_RESPONSE);
511 rpr_msg.gns_header.header.size = htons (sizeof (struct RecordPutResponseMessage));
512 rpr_msg.gns_header.r_id = htonl (rid);
513 rpr_msg.op_result = htonl (res);
514 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rpr_msg, GNUNET_NO);
516 GNUNET_SERVER_receive_done (client, GNUNET_OK);
519 struct CreateRecordContext
521 struct GNUNET_NAMESTORE_RecordData *rd;
522 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
523 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey;
524 struct GNUNET_TIME_Absolute expire;
531 handle_create_record_it (void *cls,
532 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey,
533 struct GNUNET_TIME_Absolute expire,
535 unsigned int rd_count,
536 const struct GNUNET_NAMESTORE_RecordData *rd,
537 const struct GNUNET_CRYPTO_RsaSignature *signature)
539 struct CreateRecordContext * crc = cls;
540 struct GNUNET_CRYPTO_RsaSignature *signature_new = NULL;
541 struct GNUNET_NAMESTORE_RecordData *rd_new = NULL;
543 int exist = GNUNET_SYSERR;
544 int update = GNUNET_NO;
546 int rd_count_new = 0;
548 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u existing records for `%s'\n", rd_count, crc->name);
550 for (c = 0; c < rd_count; c++)
553 if ((crc->rd->record_type == rd[c].record_type) &&
554 (crc->rd->data_size == rd[c].data_size) &&
555 (0 == memcmp (crc->rd->data, rd[c].data, rd[c].data_size)))
557 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found existing records for `%s' to update expiration date!\n", crc->name);
559 if (crc->rd->expiration.abs_value != rd[c].expiration.abs_value)
565 if (exist == GNUNET_SYSERR)
566 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "NO existing records for `%s' to update!\n", crc->name);
568 if (exist == GNUNET_SYSERR)
570 rd_new = GNUNET_malloc ((rd_count+1) * sizeof (struct GNUNET_NAMESTORE_RecordData));
571 memcpy (rd_new, rd, rd_count * sizeof (struct GNUNET_NAMESTORE_RecordData));
572 rd_count_new = rd_count + 1;
573 rd_new[rd_count] = *(crc->rd);
574 signature_new = GNUNET_NAMESTORE_create_signature (crc->pkey, crc->name, rd_new, rd_count+1);
576 if (NULL == signature_new)
583 else if (update == GNUNET_NO)
585 /* Exact same record already exists */
586 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No update for %s' record required!\n", crc->name);
590 else if (update == GNUNET_YES)
593 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating existing records for `%s'!\n", crc->name);
594 rd_new = GNUNET_malloc ((rd_count) * sizeof (struct GNUNET_NAMESTORE_RecordData));
595 memcpy (rd_new, rd, rd_count * sizeof (struct GNUNET_NAMESTORE_RecordData));
596 rd_count_new = rd_count;
597 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating expiration from %llu to %llu!\n", rd_new[exist].expiration.abs_value, crc->rd->expiration.abs_value);
598 rd_new[exist].expiration = crc->rd->expiration;
599 signature_new = GNUNET_NAMESTORE_create_signature (crc->pkey, crc->name, rd_new, rd_count_new);
600 if (NULL == signature_new)
608 /* Database operation */
609 GNUNET_assert ((rd_new != NULL) && (rd_count_new > 0));
610 res = GSN_database->put_records(GSN_database->cls,
611 (const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) crc->pubkey,
614 rd_count_new, rd_new,
616 GNUNET_break (GNUNET_OK == res);
617 if (res == GNUNET_OK)
618 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully put record for `%s' in database \n", crc->name);
620 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to put record for `%s' in database \n", crc->name);
624 GNUNET_free_non_null (rd_new);
625 GNUNET_free_non_null (signature_new);
629 /* failed to create the record */
630 crc->res = GNUNET_SYSERR;
633 /* database operations OK */
634 if (GNUNET_YES == update)
635 /* we updated an existing record */
636 crc->res = GNUNET_NO;
638 /* we created a new record */
639 crc->res = GNUNET_YES;
642 /* identical entry existed, so we did nothing */
643 crc->res = GNUNET_NO;
649 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Update result for name `%s' %u\n", crc->name, res);
653 static void handle_record_create (void *cls,
654 struct GNUNET_SERVER_Client * client,
655 const struct GNUNET_MessageHeader * message)
657 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_CREATE");
658 struct GNUNET_NAMESTORE_Client *nc;
659 struct CreateRecordContext crc;
660 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
661 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
662 struct RecordCreateResponseMessage rcr_msg;
663 GNUNET_HashCode pubkey_hash;
675 int res = GNUNET_SYSERR;
677 if (ntohs (message->size) < sizeof (struct RecordCreateMessage))
680 GNUNET_SERVER_receive_done (client, GNUNET_OK);
684 nc = client_lookup(client);
688 GNUNET_SERVER_receive_done (client, GNUNET_OK);
692 struct RecordCreateMessage * rp_msg = (struct RecordCreateMessage *) message;
693 rid = ntohl (rp_msg->gns_header.r_id);
694 name_len = ntohs (rp_msg->name_len);
695 msg_size = ntohs (message->size);
696 rd_count = ntohs (rp_msg->rd_count);
697 rd_ser_len = ntohs (rp_msg->rd_len);
698 key_len = ntohs (rp_msg->pkey_len);
699 msg_size_exp = sizeof (struct RecordCreateMessage) + key_len + name_len + rd_ser_len;
701 if (msg_size != msg_size_exp)
703 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
705 GNUNET_SERVER_receive_done (client, GNUNET_OK);
709 if ((name_len == 0) || (name_len > 256))
712 GNUNET_SERVER_receive_done (client, GNUNET_OK);
716 pkey_tmp = (char *) &rp_msg[1];
717 name_tmp = &pkey_tmp[key_len];
718 rd_ser = &name_tmp[name_len];
720 if (name_tmp[name_len -1] != '\0')
723 GNUNET_SERVER_receive_done (client, GNUNET_OK);
727 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
728 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
729 if ((res != GNUNET_OK) || (rd_count != 1))
735 /* Extracting and converting private key */
736 pkey = GNUNET_CRYPTO_rsa_decode_key((char *) pkey_tmp, key_len);
737 GNUNET_assert (pkey != NULL);
738 GNUNET_CRYPTO_rsa_key_get_public(pkey, &pub);
739 GNUNET_CRYPTO_hash (&pub, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &pubkey_hash);
746 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating record for name `%s' in zone `%s'\n", name_tmp, GNUNET_h2s(&pubkey_hash));
748 /* Get existing records for name */
749 res = GSN_database->iterate_records(GSN_database->cls, &pubkey_hash, name_tmp, 0, &handle_create_record_it, &crc);
750 if (res != GNUNET_SYSERR)
752 GNUNET_CRYPTO_rsa_key_free(pkey);
756 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_CREATE_RESPONSE");
757 rcr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE_RESPONSE);
758 rcr_msg.gns_header.header.size = htons (sizeof (struct RecordCreateResponseMessage));
759 rcr_msg.gns_header.r_id = htonl (rid);
760 if ((GNUNET_OK == res) && (crc.res == GNUNET_YES))
761 rcr_msg.op_result = htonl (GNUNET_YES);
762 else if ((GNUNET_OK == res) && (crc.res == GNUNET_NO))
763 rcr_msg.op_result = htonl (GNUNET_NO);
765 rcr_msg.op_result = htonl (GNUNET_SYSERR);
766 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rcr_msg, GNUNET_NO);
768 GNUNET_SERVER_receive_done (client, GNUNET_OK);
772 struct RemoveRecordContext
774 struct GNUNET_NAMESTORE_RecordData *rd;
775 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
780 handle_record_remove_it (void *cls,
781 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
782 struct GNUNET_TIME_Absolute expire,
784 unsigned int rd_count,
785 const struct GNUNET_NAMESTORE_RecordData *rd,
786 const struct GNUNET_CRYPTO_RsaSignature *signature)
788 struct RemoveRecordContext *rrc = cls;
789 unsigned int rd_count_new = rd_count -1;
790 struct GNUNET_NAMESTORE_RecordData rd_new[rd_count_new];
793 int found = GNUNET_NO;
795 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name `%s 'currently has %u records\n", name, rd_count);
799 /* Could not find record to remove */
804 /* Find record to remove */
806 for (c = 0; c < rd_count; c++)
808 if ((rd[c].expiration.abs_value == rrc->rd->expiration.abs_value) &&
809 (rd[c].flags == rrc->rd->flags) &&
810 (rd[c].record_type == rrc->rd->record_type) &&
811 (rd[c].data_size == rrc->rd->data_size) &&
812 (0 == memcmp (rd[c].data, rrc->rd->data, rrc->rd->data_size)))
814 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found record to remove!\n", rd_count);
824 if ((c2 != rd_count_new) || (found == GNUNET_NO))
826 /* Could not find record to remove */
830 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name `%s' now has %u records\n", name, rd_count_new);
832 /* Create new signature */
833 struct GNUNET_CRYPTO_RsaSignature * new_signature;
834 new_signature = GNUNET_NAMESTORE_create_signature (rrc->pkey, name, rd_new, rd_count_new);
836 if (new_signature == NULL)
838 /* Signature failed */
844 res = GSN_database->put_records(GSN_database->cls,
848 rd_count_new, rd_new,
850 GNUNET_free (new_signature);
852 if (GNUNET_OK != res)
854 /* Could put records into database */
862 static void handle_record_remove (void *cls,
863 struct GNUNET_SERVER_Client * client,
864 const struct GNUNET_MessageHeader * message)
866 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_REMOVE");
867 struct GNUNET_NAMESTORE_Client *nc;
868 struct RecordRemoveResponseMessage rrr_msg;
869 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
870 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
871 GNUNET_HashCode pubkey_hash;
872 char * pkey_tmp = NULL;
873 char * name_tmp = NULL;
874 char * rd_ser = NULL;
877 size_t rd_ser_len = 0;
879 size_t msg_size_exp = 0;
883 int res = GNUNET_SYSERR;
885 if (ntohs (message->size) < sizeof (struct RecordRemoveMessage))
888 GNUNET_SERVER_receive_done (client, GNUNET_OK);
892 nc = client_lookup(client);
896 GNUNET_SERVER_receive_done (client, GNUNET_OK);
900 struct RecordRemoveMessage * rr_msg = (struct RecordRemoveMessage *) message;
901 rid = ntohl (rr_msg->gns_header.r_id);
902 name_len = ntohs (rr_msg->name_len);
903 rd_ser_len = ntohs (rr_msg->rd_len);
904 rd_count = ntohs (rr_msg->rd_count);
905 key_len = ntohs (rr_msg->pkey_len);
906 msg_size = ntohs (message->size);
908 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
911 GNUNET_SERVER_receive_done (client, GNUNET_OK);
915 if ((rd_count != 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
918 GNUNET_SERVER_receive_done (client, GNUNET_OK);
922 msg_size_exp = sizeof (struct RecordRemoveMessage) + key_len + name_len + rd_ser_len;
923 if (msg_size != msg_size_exp)
925 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
927 GNUNET_SERVER_receive_done (client, GNUNET_OK);
931 if ((rd_count != 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
934 GNUNET_SERVER_receive_done (client, GNUNET_OK);
938 pkey_tmp = (char *) &rr_msg[1];
939 name_tmp = &pkey_tmp[key_len];
940 rd_ser = &name_tmp[name_len];
943 if ((name_len == 0) || (name_len > 256))
946 GNUNET_SERVER_receive_done (client, GNUNET_OK);
950 if (name_tmp[name_len -1] != '\0')
953 GNUNET_SERVER_receive_done (client, GNUNET_OK);
957 /* Extracting and converting private key */
958 pkey = GNUNET_CRYPTO_rsa_decode_key((char *) pkey_tmp, key_len);
959 GNUNET_assert (pkey != NULL);
960 GNUNET_CRYPTO_rsa_key_get_public(pkey, &pub);
961 GNUNET_CRYPTO_hash (&pub, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &pubkey_hash);
963 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
964 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
965 if ((res != GNUNET_OK) || (rd_count != 1))
971 struct RemoveRecordContext rrc;
975 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing record for name `%s' in zone `%s'\n", name_tmp, GNUNET_h2s(&pubkey_hash));
977 /* Database operation */
978 res = GSN_database->iterate_records (GSN_database->cls,
982 handle_record_remove_it, &rrc);
984 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing record for name `%s': %s\n",
985 name_tmp, (rrc.op_res == 0) ? "OK" : "FAIL");
990 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_REMOVE_RESPONSE");
991 rrr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE_RESPONSE);
992 rrr_msg.gns_header.header.size = htons (sizeof (struct RecordRemoveResponseMessage));
993 rrr_msg.gns_header.r_id = htonl (rid);
994 rrr_msg.op_result = htonl (res);
995 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rrr_msg, GNUNET_NO);
997 GNUNET_CRYPTO_rsa_key_free (pkey);
999 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1003 struct ZoneToNameCtx
1005 struct GNUNET_NAMESTORE_Client *nc;
1010 handle_zone_to_name_it (void *cls,
1011 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
1012 struct GNUNET_TIME_Absolute expire,
1014 unsigned int rd_count,
1015 const struct GNUNET_NAMESTORE_RecordData *rd,
1016 const struct GNUNET_CRYPTO_RsaSignature *signature)
1018 struct ZoneToNameCtx * ztn_ctx = cls;
1019 struct ZoneToNameResponseMessage *ztnr_msg;
1020 int16_t res = GNUNET_SYSERR;
1021 uint16_t name_len = 0;
1022 uint16_t rd_ser_len = 0 ;
1023 int32_t contains_sig = 0;
1024 size_t msg_size = 0;
1026 char *rd_ser = NULL;
1031 if ((zone_key != NULL) && (name != NULL))
1034 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found results: name is `%s', has %u records\n", name, rd_count);
1036 name_len = strlen (name);
1040 /* no result found */
1041 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found no results\n");
1048 rd_ser_len = GNUNET_NAMESTORE_records_get_size (rd_count, rd);
1049 rd_ser = GNUNET_malloc (rd_ser_len);
1050 GNUNET_NAMESTORE_records_serialize(rd_count, rd, rd_ser_len, rd_ser);
1055 if (signature != NULL)
1056 contains_sig = GNUNET_YES;
1058 contains_sig = GNUNET_NO;
1062 msg_size = sizeof (struct ZoneToNameResponseMessage) + name_len + rd_ser_len + contains_sig * sizeof (struct GNUNET_CRYPTO_RsaSignature);
1063 ztnr_msg = GNUNET_malloc (msg_size);
1065 name_tmp = (char *) &ztnr_msg[1];
1066 rd_tmp = &name_tmp[name_len];
1067 sig_tmp = &rd_tmp[rd_ser_len];
1069 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "ZONE_TO_NAME_RESPONSE");
1070 ztnr_msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME_RESPONSE);
1071 ztnr_msg->gns_header.header.size = htons (msg_size);
1072 ztnr_msg->gns_header.r_id = htonl (ztn_ctx->rid);
1073 ztnr_msg->res = htons (res);
1074 ztnr_msg->rd_len = htons (rd_ser_len);
1075 ztnr_msg->rd_count = htons (rd_count);
1076 ztnr_msg->name_len = htons (name_len);
1077 ztnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
1078 if (zone_key != NULL)
1079 ztnr_msg->zone_key = *zone_key;
1081 memset (&ztnr_msg->zone_key, '\0', sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
1083 memcpy (name_tmp, name, name_len);
1085 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name is `%s', has %u records, rd ser len %u msg_size %u\n", name, rd_count, rd_ser_len, msg_size);
1086 memcpy (rd_tmp, rd_ser, rd_ser_len);
1087 memcpy (sig_tmp, signature, contains_sig * sizeof (struct GNUNET_CRYPTO_RsaSignature));
1089 GNUNET_SERVER_notification_context_unicast (snc, ztn_ctx->nc->client, (const struct GNUNET_MessageHeader *) ztnr_msg, GNUNET_NO);
1090 GNUNET_free (ztnr_msg);
1091 GNUNET_free_non_null (rd_ser);
1095 static void handle_zone_to_name (void *cls,
1096 struct GNUNET_SERVER_Client * client,
1097 const struct GNUNET_MessageHeader * message)
1099 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_TO_NAME");
1100 struct GNUNET_NAMESTORE_Client *nc;
1101 struct ZoneToNameCtx ztn_ctx;
1102 size_t msg_size = 0;
1105 if (ntohs (message->size) != sizeof (struct ZoneToNameMessage))
1107 GNUNET_break_op (0);
1108 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1112 nc = client_lookup(client);
1115 GNUNET_break_op (0);
1116 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1120 struct ZoneToNameMessage *ztn_msg = (struct ZoneToNameMessage *) message;
1122 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
1124 GNUNET_break_op (0);
1125 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1129 rid = ntohl (ztn_msg->gns_header.r_id);
1134 char * z_tmp = strdup (GNUNET_h2s (&ztn_msg->zone));
1135 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up name for zone `%s' in zone `%s'\n",
1137 GNUNET_h2s (&ztn_msg->value_zone));
1138 GNUNET_free (z_tmp);
1140 GSN_database->zone_to_name (GSN_database->cls, &ztn_msg->zone, &ztn_msg->value_zone, &handle_zone_to_name_it, &ztn_ctx);
1142 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1145 struct ZoneIterationProcResult
1148 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded zone_key;
1151 struct GNUNET_CRYPTO_RsaSignature signature;
1152 struct GNUNET_TIME_Absolute expire;
1162 void zone_iteration_proc (void *cls,
1163 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
1164 struct GNUNET_TIME_Absolute expire,
1166 unsigned int rd_count,
1167 const struct GNUNET_NAMESTORE_RecordData *rd,
1168 const struct GNUNET_CRYPTO_RsaSignature *signature)
1170 struct GNUNET_NAMESTORE_ZoneIteration *zi = cls;
1171 struct GNUNET_NAMESTORE_Client *nc = zi->client;
1174 if ((zone_key == NULL) && (name == NULL))
1176 struct ZoneIterationResponseMessage zir_msg;
1177 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No more results for zone `%s'\n", GNUNET_h2s(&zi->zone));
1178 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending empty `%s' message\n", "ZONE_ITERATION_RESPONSE");
1179 zir_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
1180 zir_msg.gns_header.header.size = htons (sizeof (struct ZoneIterationResponseMessage));
1181 zir_msg.gns_header.r_id = htonl(zi->request_id);
1182 zir_msg.expire = GNUNET_TIME_absolute_hton(GNUNET_TIME_absolute_get_zero());
1183 zir_msg.name_len = htons (0);
1184 zir_msg.reserved = htons (0);
1185 zir_msg.rd_count = htons (0);
1186 zir_msg.rd_len = htons (0);
1187 memset (&zir_msg.public_key, '\0', sizeof (zir_msg.public_key));
1188 memset (&zir_msg.signature, '\0', sizeof (zir_msg.signature));
1189 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &zir_msg, GNUNET_NO);
1191 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing zone iterator\n");
1192 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, zi);
1198 struct ZoneIterationResponseMessage *zir_msg;
1199 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending name `%s' for iterating zone `%s'\n", name, GNUNET_h2s(&zi->zone));
1205 name_len = strlen (name) +1;
1207 rd_ser_len = GNUNET_NAMESTORE_records_get_size(rd_count, rd);
1208 char rd_ser[rd_ser_len];
1209 GNUNET_NAMESTORE_records_serialize(rd_count, rd, rd_ser_len, rd_ser);
1210 msg_size = sizeof (struct ZoneIterationResponseMessage) + name_len + rd_ser_len;
1211 zir_msg = GNUNET_malloc(msg_size);
1213 name_tmp = (char *) &zir_msg[1];
1214 rd_tmp = &name_tmp[name_len];
1216 zir_msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
1217 zir_msg->gns_header.header.size = htons (msg_size);
1218 zir_msg->gns_header.r_id = htonl(zi->request_id);
1219 zir_msg->expire = GNUNET_TIME_absolute_hton(expire);
1220 zir_msg->reserved = htons (0);
1221 zir_msg->name_len = htons (name_len);
1222 zir_msg->rd_count = htons (rd_count);
1223 zir_msg->rd_len = htons (rd_ser_len);
1224 zir_msg->signature = *signature;
1225 zir_msg->public_key = *zone_key;
1226 memcpy (name_tmp, name, name_len);
1227 memcpy (rd_tmp, rd_ser, rd_ser_len);
1229 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending empty `%s' message with size %u\n", "ZONE_ITERATION_RESPONSE", msg_size);
1230 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) zir_msg, GNUNET_NO);
1231 GNUNET_free (zir_msg);
1235 static void handle_iteration_start (void *cls,
1236 struct GNUNET_SERVER_Client * client,
1237 const struct GNUNET_MessageHeader * message)
1239 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_START");
1241 struct ZoneIterationStartMessage * zis_msg = (struct ZoneIterationStartMessage *) message;
1242 struct GNUNET_NAMESTORE_Client *nc;
1243 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1246 nc = client_lookup(client);
1249 GNUNET_break_op (0);
1250 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1254 zi = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_ZoneIteration));
1255 zi->request_id = ntohl (zis_msg->gns_header.r_id);
1258 zi->zone = zis_msg->zone;
1260 GNUNET_HashCode dummy;
1261 GNUNET_HashCode *zone_tmp;
1262 memset (&dummy, '\0', sizeof (dummy));
1263 if (0 == memcmp (&dummy, &zis_msg->zone, sizeof (dummy)))
1265 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting to iterate over all zones\n");
1270 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting to iterate over zone `%s'\n", GNUNET_h2s (&zis_msg->zone));
1271 zone_tmp = &zis_msg->zone;
1274 GNUNET_CONTAINER_DLL_insert (nc->op_head, nc->op_tail, zi);
1277 res = GSN_database->iterate_records (GSN_database->cls, zone_tmp , NULL, zi->offset , &zone_iteration_proc, zi);
1278 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1281 static void handle_iteration_stop (void *cls,
1282 struct GNUNET_SERVER_Client * client,
1283 const struct GNUNET_MessageHeader * message)
1285 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_STOP");
1287 struct GNUNET_NAMESTORE_Client *nc;
1288 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1289 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
1292 nc = client_lookup(client);
1295 GNUNET_break_op (0);
1296 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1300 rid = ntohl (zis_msg->gns_header.r_id);
1301 for (zi = nc->op_head; zi != NULL; zi = zi->next)
1303 if (zi->request_id == rid)
1308 GNUNET_break_op (0);
1309 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1313 GNUNET_CONTAINER_DLL_remove(nc->op_head, nc->op_tail, zi);
1314 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration for zone `%s'\n", GNUNET_h2s (&zi->zone));
1317 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1320 static void handle_iteration_next (void *cls,
1321 struct GNUNET_SERVER_Client * client,
1322 const struct GNUNET_MessageHeader * message)
1324 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_NEXT");
1326 struct GNUNET_NAMESTORE_Client *nc;
1327 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1328 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
1331 nc = client_lookup(client);
1334 GNUNET_break_op (0);
1335 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1339 rid = ntohl (zis_msg->gns_header.r_id);
1340 for (zi = nc->op_head; zi != NULL; zi = zi->next)
1342 if (zi->request_id == rid)
1347 GNUNET_break_op (0);
1348 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1353 GSN_database->iterate_records (GSN_database->cls, &zi->zone, NULL, zi->offset , &zone_iteration_proc, zi);
1354 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1360 * Process template requests.
1362 * @param cls closure
1363 * @param server the initialized server
1364 * @param cfg configuration to use
1367 run (void *cls, struct GNUNET_SERVER_Handle *server,
1368 const struct GNUNET_CONFIGURATION_Handle *cfg)
1372 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting namestore service\n");
1374 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
1375 {&handle_start, NULL,
1376 GNUNET_MESSAGE_TYPE_NAMESTORE_START, sizeof (struct StartMessage)},
1377 {&handle_lookup_name, NULL,
1378 GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME, 0},
1379 {&handle_record_put, NULL,
1380 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT, 0},
1381 {&handle_record_create, NULL,
1382 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE, 0},
1383 {&handle_record_remove, NULL,
1384 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE, 0},
1385 {&handle_zone_to_name, NULL,
1386 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME, 0},
1387 {&handle_iteration_start, NULL,
1388 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START, sizeof (struct ZoneIterationStartMessage)},
1389 {&handle_iteration_next, NULL,
1390 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT, 0},
1391 {&handle_iteration_stop, NULL,
1392 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP, 0},
1398 /* Loading database plugin */
1400 GNUNET_CONFIGURATION_get_value_string (cfg, "namestore", "database",
1402 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No database backend configured\n");
1404 GNUNET_asprintf (&db_lib_name, "libgnunet_plugin_namestore_%s", database);
1405 GSN_database = GNUNET_PLUGIN_load (db_lib_name, (void *) GSN_cfg);
1406 if (GSN_database == NULL)
1407 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not load database backend `%s'\n",
1409 GNUNET_free (database);
1411 /* Configuring server handles */
1412 GNUNET_SERVER_add_handlers (server, handlers);
1413 snc = GNUNET_SERVER_notification_context_create (server, 16);
1414 GNUNET_SERVER_disconnect_notify (server,
1415 &client_disconnect_notification,
1418 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
1425 * The main function for the template service.
1427 * @param argc number of arguments from the command line
1428 * @param argv command line arguments
1429 * @return 0 ok, 1 on error
1432 main (int argc, char *const *argv)
1434 return (GNUNET_OK ==
1435 GNUNET_SERVICE_run (argc, argv, "namestore",
1436 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
1439 /* end of gnunet-service-namestore.c */