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 "namestore.h"
36 * A namestore operation.
38 struct GNUNET_NAMESTORE_ZoneIteration
40 struct GNUNET_NAMESTORE_ZoneIteration *next;
41 struct GNUNET_NAMESTORE_ZoneIteration *prev;
43 struct GNUNET_NAMESTORE_Client * client;
56 struct GNUNET_NAMESTORE_Client
58 struct GNUNET_NAMESTORE_Client *next;
59 struct GNUNET_NAMESTORE_Client *prev;
61 struct GNUNET_SERVER_Client * client;
63 struct GNUNET_NAMESTORE_ZoneIteration *op_head;
64 struct GNUNET_NAMESTORE_ZoneIteration *op_tail;
70 * Configuration handle.
72 const struct GNUNET_CONFIGURATION_Handle *GSN_cfg;
74 static struct GNUNET_NAMESTORE_PluginFunctions *GSN_database;
77 * Our notification context.
79 static struct GNUNET_SERVER_NotificationContext *snc;
81 static char *db_lib_name;
83 static struct GNUNET_NAMESTORE_Client *client_head;
84 static struct GNUNET_NAMESTORE_Client *client_tail;
88 * Task run during shutdown.
94 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
96 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping namestore service\n");
98 struct GNUNET_NAMESTORE_ZoneIteration * no;
99 struct GNUNET_NAMESTORE_ZoneIteration * tmp;
100 struct GNUNET_NAMESTORE_Client * nc;
101 struct GNUNET_NAMESTORE_Client * next;
103 for (nc = client_head; nc != NULL; nc = next)
106 for (no = nc->op_head; no != NULL; no = tmp)
108 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, no);
113 GNUNET_CONTAINER_DLL_remove (client_head, client_tail, nc);
118 GNUNET_SERVER_notification_context_destroy (snc);
121 GNUNET_break (NULL == GNUNET_PLUGIN_unload (db_lib_name, GSN_database));
122 GNUNET_free (db_lib_name);
125 static struct GNUNET_NAMESTORE_Client *
126 client_lookup (struct GNUNET_SERVER_Client *client)
128 struct GNUNET_NAMESTORE_Client * nc;
130 GNUNET_assert (NULL != client);
132 for (nc = client_head; nc != NULL; nc = nc->next)
134 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_CONTAINER_DLL_remove (client_head, client_tail, nc);
173 static void handle_start (void *cls,
174 struct GNUNET_SERVER_Client * client,
175 const struct GNUNET_MessageHeader * message)
177 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected\n", client);
179 struct GNUNET_NAMESTORE_Client * nc = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_Client));
181 GNUNET_SERVER_notification_context_add (snc, client);
182 GNUNET_CONTAINER_DLL_insert(client_head, client_tail, nc);
184 GNUNET_SERVER_receive_done (client, GNUNET_OK);
187 struct LookupNameContext
189 struct GNUNET_NAMESTORE_Client *nc;
191 uint32_t record_type;
198 handle_lookup_name_it (void *cls,
199 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
200 struct GNUNET_TIME_Absolute expire,
202 unsigned int rd_count,
203 const struct GNUNET_NAMESTORE_RecordData *rd,
204 const struct GNUNET_CRYPTO_RsaSignature *signature)
207 struct LookupNameContext *lnc = cls;
208 struct LookupNameResponseMessage *lnr_msg;
210 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key_tmp;
211 struct GNUNET_NAMESTORE_RecordData *rd_selected = NULL;
216 struct GNUNET_CRYPTO_RsaSignature *signature_tmp;
218 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "NAMESTORE_LOOKUP_NAME_RESPONSE");
224 name_len = strlen(name) + 1;
226 int copied_elements = 0;
227 int contains_signature = 0;
230 /* count records to copy */
233 if (lnc->record_type != 0)
235 /* special record type needed */
236 for (c = 0; c < rd_count; c ++)
237 if (rd[c].record_type == lnc->record_type)
238 copied_elements++; /* found matching record */
239 rd_selected = GNUNET_malloc (copied_elements * sizeof (struct GNUNET_NAMESTORE_RecordData));
241 for (c = 0; c < rd_count; c ++)
243 if (rd[c].record_type == lnc->record_type)
245 /* found matching record */
246 memcpy (&rd_selected[copied_elements], &rd[c], sizeof (struct GNUNET_NAMESTORE_RecordData));
253 copied_elements = rd_count;
254 rd_selected = (struct GNUNET_NAMESTORE_RecordData *) rd;
257 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "NAMESTORE_LOOKUP_NAME_RESPONSE: %p %u\n", rd_selected, copied_elements);
258 rd_ser_len = GNUNET_NAMESTORE_records_serialize(&rd_ser, copied_elements, rd_selected);
269 if ((copied_elements == rd_count) && (signature != NULL))
270 contains_signature = GNUNET_YES;
272 if (rd_selected != rd)
273 GNUNET_free (rd_selected);
275 r_size = sizeof (struct LookupNameResponseMessage) +
276 sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) +
279 contains_signature * sizeof (struct GNUNET_CRYPTO_RsaSignature);
281 lnr_msg = GNUNET_malloc (r_size);
283 lnr_msg->header.type = ntohs (GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME_RESPONSE);
284 lnr_msg->header.size = ntohs (r_size);
285 lnr_msg->op_id = htonl (lnc->id);
286 lnr_msg->rd_len = htonl (rd_ser_len);
287 lnr_msg->name_len = htons (name_len);
288 lnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
289 lnr_msg->contains_sig = htons (contains_signature);
291 zone_key_tmp = (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) &lnr_msg[1];
292 name_tmp = (char *) &zone_key_tmp[1];
293 rd_tmp = &name_tmp[name_len];
294 signature_tmp = (struct GNUNET_CRYPTO_RsaSignature *) &rd_tmp[rd_ser_len];
296 if (zone_key != NULL)
297 memcpy (zone_key_tmp, zone_key, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
300 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded dummy;
301 memset (&dummy, '0', sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
302 memcpy (zone_key_tmp, &dummy, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
304 memcpy (name_tmp, name, name_len);
305 memcpy (rd_tmp, rd_ser, rd_ser_len);
306 GNUNET_free_non_null (rd_ser);
308 if (GNUNET_YES == contains_signature)
309 memcpy (signature_tmp, signature, sizeof (struct GNUNET_CRYPTO_RsaSignature));
310 GNUNET_SERVER_notification_context_unicast (snc, lnc->nc->client, (const struct GNUNET_MessageHeader *) lnr_msg, GNUNET_NO);
312 GNUNET_free (lnr_msg);
315 static void handle_lookup_name (void *cls,
316 struct GNUNET_SERVER_Client * client,
317 const struct GNUNET_MessageHeader * message)
319 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_LOOKUP_NAME");
320 struct LookupNameContext lnc;
321 struct GNUNET_NAMESTORE_Client *nc;
322 GNUNET_HashCode name_hash;
329 if (ntohs (message->size) < sizeof (struct LookupNameMessage))
332 GNUNET_SERVER_receive_done (client, GNUNET_OK);
336 nc = client_lookup(client);
340 GNUNET_SERVER_receive_done (client, GNUNET_OK);
344 struct LookupNameMessage * ln_msg = (struct LookupNameMessage *) message;
345 id = ntohl (ln_msg->op_id);
346 name_len = ntohl (ln_msg->name_len);
347 type = ntohl (ln_msg->record_type);
349 if ((name_len == 0) || (name_len > 256))
352 GNUNET_SERVER_receive_done (client, GNUNET_OK);
356 name = GNUNET_malloc (name_len);
357 memcpy (name, &ln_msg[1], name_len);
358 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up record for name `%s'\n", name);
359 GNUNET_CRYPTO_hash(name, name_len-1, &name_hash);
362 /* do the actual lookup */
365 lnc.record_type = type;
366 GSN_database->iterate_records(GSN_database->cls, &ln_msg->zone, &ln_msg->zone, 0, &handle_lookup_name_it, &lnc);
368 GNUNET_SERVER_receive_done (client, GNUNET_OK);
371 static void handle_record_put (void *cls,
372 struct GNUNET_SERVER_Client * client,
373 const struct GNUNET_MessageHeader * message)
375 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_PUT");
376 struct GNUNET_NAMESTORE_Client *nc;
377 struct GNUNET_TIME_Absolute expire;
378 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key;
379 struct GNUNET_NAMESTORE_RecordData *rd;
380 struct GNUNET_CRYPTO_RsaSignature *signature;
381 struct RecordPutResponseMessage rpr_msg;
390 int res = GNUNET_SYSERR;
392 if (ntohs (message->size) < sizeof (struct RecordPutMessage))
395 GNUNET_SERVER_receive_done (client, GNUNET_OK);
399 nc = client_lookup (client);
403 GNUNET_SERVER_receive_done (client, GNUNET_OK);
407 struct RecordPutMessage * rp_msg = (struct RecordPutMessage *) message;
408 id = ntohl (rp_msg->op_id);
409 name_len = ntohs (rp_msg->name_len);
410 rd_ser_len = ntohs(rp_msg->rd_len);
411 msg_size = ntohs (message->size);
412 msg_size_exp = sizeof (struct RecordPutMessage) + sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) + name_len + rd_ser_len;
414 if (msg_size != msg_size_exp)
416 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
418 GNUNET_SERVER_receive_done (client, GNUNET_OK);
423 if ((name_len == 0) || (name_len > 256))
426 GNUNET_SERVER_receive_done (client, GNUNET_OK);
430 zone_key = (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) &rp_msg[1];
431 name = (char *) &zone_key[1];
432 expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
433 signature = (struct GNUNET_CRYPTO_RsaSignature *) &rp_msg->signature;
434 rd_ser = &name[name_len];
435 rd_count = GNUNET_NAMESTORE_records_deserialize(&rd, rd_ser, rd_ser_len);
437 /* Database operation */
438 res = GSN_database->put_records(GSN_database->cls,
445 GNUNET_NAMESTORE_records_free (rd_count, rd);
447 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting record for name `%s': %s\n",
448 name, (res == GNUNET_OK) ? "OK" : "FAIL");
452 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_PUT_RESPONSE");
453 rpr_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT_RESPONSE);
454 rpr_msg.op_id = rp_msg->op_id;
455 rpr_msg.header.size = htons (sizeof (struct RecordPutResponseMessage));
456 if (GNUNET_OK == res)
457 rpr_msg.op_result = htons (GNUNET_OK);
459 rpr_msg.op_result = htons (GNUNET_NO);
460 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rpr_msg, GNUNET_NO);
462 GNUNET_SERVER_receive_done (client, GNUNET_OK);
466 static void handle_record_create (void *cls,
467 struct GNUNET_SERVER_Client * client,
468 const struct GNUNET_MessageHeader * message)
470 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_CREATE");
471 struct GNUNET_NAMESTORE_Client *nc;
472 struct RecordCreateResponseMessage rcr_msg;
478 int res = GNUNET_SYSERR;
480 if (ntohs (message->size) < sizeof (struct RecordCreateMessage))
483 GNUNET_SERVER_receive_done (client, GNUNET_OK);
487 nc = client_lookup(client);
491 GNUNET_SERVER_receive_done (client, GNUNET_OK);
495 struct RecordCreateMessage * rp_msg = (struct RecordCreateMessage *) message;
496 id = ntohl (rp_msg->op_id);
497 name_len = ntohs (rp_msg->name_len);
498 msg_size = ntohs (message->size);
499 msg_size_exp = sizeof (struct RecordCreateMessage) + name_len + sizeof (struct GNUNET_NAMESTORE_RecordData);
501 if (msg_size != msg_size_exp)
503 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
505 GNUNET_SERVER_receive_done (client, GNUNET_OK);
510 if ((name_len == 0) || (name_len > 256))
513 GNUNET_SERVER_receive_done (client, GNUNET_OK);
521 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_CREATE_RESPONSE");
522 rcr_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE_RESPONSE);
523 rcr_msg.op_id = rp_msg->op_id;
524 rcr_msg.header.size = htons (sizeof (struct RecordCreateResponseMessage));
525 if (GNUNET_OK == res)
526 rcr_msg.op_result = htons (GNUNET_OK);
528 rcr_msg.op_result = htons (GNUNET_NO);
529 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rcr_msg, GNUNET_NO);
531 GNUNET_SERVER_receive_done (client, GNUNET_OK);
534 static void handle_record_remove (void *cls,
535 struct GNUNET_SERVER_Client * client,
536 const struct GNUNET_MessageHeader * message)
538 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_REMOVE");
539 struct GNUNET_NAMESTORE_Client *nc;
540 struct RecordRemoveResponseMessage rrr_msg;
546 int res = GNUNET_SYSERR;
548 if (ntohs (message->size) < sizeof (struct RecordRemoveMessage))
551 GNUNET_SERVER_receive_done (client, GNUNET_OK);
555 nc = client_lookup(client);
559 GNUNET_SERVER_receive_done (client, GNUNET_OK);
563 struct RecordRemoveMessage * rp_msg = (struct RecordRemoveMessage *) message;
564 id = ntohl (rp_msg->op_id);
565 name_len = ntohs (rp_msg->name_len);
566 msg_size = ntohs (message->size);
567 msg_size_exp = sizeof (struct RecordRemoveMessage) + name_len + sizeof (struct GNUNET_NAMESTORE_RecordData);
569 if (msg_size != msg_size_exp)
571 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
573 GNUNET_SERVER_receive_done (client, GNUNET_OK);
578 if ((name_len == 0) || (name_len > 256))
581 GNUNET_SERVER_receive_done (client, GNUNET_OK);
589 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_REMOVE_RESPONSE");
590 rrr_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE_RESPONSE);
591 rrr_msg.op_id = rp_msg->op_id;
592 rrr_msg.header.size = htons (sizeof (struct RecordRemoveResponseMessage));
593 if (GNUNET_OK == res)
594 rrr_msg.op_result = htons (GNUNET_OK);
596 rrr_msg.op_result = htons (GNUNET_NO);
597 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rrr_msg, GNUNET_NO);
599 GNUNET_SERVER_receive_done (client, GNUNET_OK);
602 struct ZoneIterationProcResult
605 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded zone_key;
608 struct GNUNET_CRYPTO_RsaSignature signature;
609 struct GNUNET_TIME_Absolute expire;
619 void zone_iteration_proc (void *cls,
620 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
621 struct GNUNET_TIME_Absolute expire,
623 unsigned int rd_count,
624 const struct GNUNET_NAMESTORE_RecordData *rd,
625 const struct GNUNET_CRYPTO_RsaSignature *signature)
627 struct ZoneIterationProcResult *zipr = cls;
629 if (zone_key != NULL)
631 zipr->zone_key = *zone_key;
632 zipr->have_zone_key = GNUNET_YES;
635 zipr->have_zone_key = GNUNET_NO;
637 zipr->expire = expire;
641 memcpy (zipr->name, name, strlen(name) + 1);
642 zipr->have_name = GNUNET_YES;
645 zipr->have_name = GNUNET_NO;
647 if (signature != NULL)
649 zipr->signature = *signature;
650 zipr->have_signature = GNUNET_YES;
653 zipr->have_signature = GNUNET_NO;
655 if ((rd_count > 0) && (rd != NULL))
657 len = GNUNET_NAMESTORE_records_serialize (&zipr->rd_ser, rd_count, rd);
658 zipr->rd_ser_len = len;
662 static void handle_iteration_start (void *cls,
663 struct GNUNET_SERVER_Client * client,
664 const struct GNUNET_MessageHeader * message)
666 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_START");
668 struct ZoneIterationStartMessage * zis_msg = (struct ZoneIterationStartMessage *) message;
669 struct GNUNET_NAMESTORE_Client *nc;
670 struct GNUNET_NAMESTORE_ZoneIteration *zi;
671 struct ZoneIterationResponseMessage zir_msg;
672 struct ZoneIterationProcResult zipr;
675 nc = client_lookup(client);
679 GNUNET_SERVER_receive_done (client, GNUNET_OK);
683 zi = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_ZoneIteration));
684 zi->op_id = ntohl (zis_msg->op_id);
687 zi->zone = zis_msg->zone;
689 GNUNET_CONTAINER_DLL_insert (nc->op_head, nc->op_tail, zi);
691 res = GSN_database->iterate_records (GSN_database->cls, &zis_msg->zone, NULL, zi->offset , &zone_iteration_proc, &zipr);
692 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "iterate_records result %u\n", res);
695 /* GNUNET_OK on success */
699 /* GNUNET_SYSERR on error */
702 /* GNUNET_NO if there were no results, */
710 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "ZONE_ITERATION_RESPONSE");
711 zir_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
712 zir_msg.op_id = htonl(zi->op_id);
713 zir_msg.header.size = htons (sizeof (struct ZoneIterationResponseMessage));
716 GNUNET_SERVER_notification_context_unicast (snc, zi->client->client, (const struct GNUNET_MessageHeader *) &zir_msg, GNUNET_NO);
719 GNUNET_SERVER_receive_done (client, GNUNET_OK);
722 static void handle_iteration_stop (void *cls,
723 struct GNUNET_SERVER_Client * client,
724 const struct GNUNET_MessageHeader * message)
726 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_STOP");
728 struct GNUNET_NAMESTORE_Client *nc;
729 struct GNUNET_NAMESTORE_ZoneIteration *zi;
730 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
733 nc = client_lookup(client);
737 GNUNET_SERVER_receive_done (client, GNUNET_OK);
741 id = ntohl (zis_msg->op_id);
742 for (zi = nc->op_head; zi != NULL; zi = zi->next)
750 GNUNET_SERVER_receive_done (client, GNUNET_OK);
754 GNUNET_CONTAINER_DLL_remove(nc->op_head, nc->op_tail, zi);
755 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration for zone `%s'\n", GNUNET_h2s (&zi->zone));
758 GNUNET_SERVER_receive_done (client, GNUNET_OK);
761 static void handle_iteration_next (void *cls,
762 struct GNUNET_SERVER_Client * client,
763 const struct GNUNET_MessageHeader * message)
765 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_NEXT");
767 struct GNUNET_NAMESTORE_Client *nc;
768 struct GNUNET_NAMESTORE_ZoneIteration *zi;
769 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
773 nc = client_lookup(client);
777 GNUNET_SERVER_receive_done (client, GNUNET_OK);
781 id = ntohl (zis_msg->op_id);
782 for (zi = nc->op_head; zi != NULL; zi = zi->next)
790 GNUNET_SERVER_receive_done (client, GNUNET_OK);
795 res = GSN_database->iterate_records (GSN_database->cls, &zi->zone, NULL, zi->offset , &zone_iteration_proc, zi);
801 * Process template requests.
804 * @param server the initialized server
805 * @param cfg configuration to use
808 run (void *cls, struct GNUNET_SERVER_Handle *server,
809 const struct GNUNET_CONFIGURATION_Handle *cfg)
813 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting namestore service\n");
815 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
816 {&handle_start, NULL,
817 GNUNET_MESSAGE_TYPE_NAMESTORE_START, sizeof (struct StartMessage)},
818 {&handle_lookup_name, NULL,
819 GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME, 0},
820 {&handle_record_put, NULL,
821 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT, 0},
822 {&handle_record_create, NULL,
823 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE, 0},
824 {&handle_record_remove, NULL,
825 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE, 0},
826 {&handle_iteration_start, NULL,
827 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START, sizeof (struct ZoneIterationStartMessage)},
828 {&handle_iteration_stop, NULL,
829 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP, sizeof (struct ZoneIterationStopMessage)},
830 {&handle_iteration_next, NULL,
831 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT, 0},
837 /* Loading database plugin */
839 GNUNET_CONFIGURATION_get_value_string (cfg, "namestore", "database",
841 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No database backend configured\n");
843 GNUNET_asprintf (&db_lib_name, "libgnunet_plugin_namestore_%s", database);
844 GSN_database = GNUNET_PLUGIN_load (db_lib_name, (void *) GSN_cfg);
845 if (GSN_database == NULL)
846 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not load database backend `%s'\n",
848 GNUNET_free (database);
850 /* Configuring server handles */
851 GNUNET_SERVER_add_handlers (server, handlers);
852 snc = GNUNET_SERVER_notification_context_create (server, 16);
853 GNUNET_SERVER_disconnect_notify (server,
854 &client_disconnect_notification,
857 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
864 * The main function for the template service.
866 * @param argc number of arguments from the command line
867 * @param argv command line arguments
868 * @return 0 ok, 1 on error
871 main (int argc, char *const *argv)
874 GNUNET_SERVICE_run (argc, argv, "namestore",
875 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
878 /* end of gnunet-service-namestore.c */