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;
256 rd_ser_len = GNUNET_NAMESTORE_records_serialize(&rd_ser, copied_elements, rd_selected);
267 if ((copied_elements == rd_count) && (signature != NULL))
268 contains_signature = GNUNET_YES;
270 if (rd_selected != rd)
271 GNUNET_free (rd_selected);
273 r_size = sizeof (struct LookupNameResponseMessage) +
274 sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) +
277 contains_signature * sizeof (struct GNUNET_CRYPTO_RsaSignature);
279 lnr_msg = GNUNET_malloc (r_size);
281 lnr_msg->header.type = ntohs (GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME_RESPONSE);
282 lnr_msg->header.size = ntohs (r_size);
283 lnr_msg->op_id = htonl (lnc->id);
284 lnr_msg->rd_len = htonl (rd_ser_len);
285 lnr_msg->name_len = htons (name_len);
286 lnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
287 lnr_msg->contains_sig = htons (contains_signature);
289 zone_key_tmp = (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) &lnr_msg[1];
290 name_tmp = (char *) &zone_key_tmp[1];
291 rd_tmp = &name_tmp[name_len];
292 signature_tmp = (struct GNUNET_CRYPTO_RsaSignature *) &rd_tmp[rd_ser_len];
294 if (zone_key != NULL)
295 memcpy (zone_key_tmp, zone_key, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
298 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded dummy;
299 memset (&dummy, '0', sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
300 memcpy (zone_key_tmp, &dummy, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
302 memcpy (name_tmp, name, name_len);
303 memcpy (rd_tmp, rd_ser, rd_ser_len);
304 GNUNET_free_non_null (rd_ser);
306 if (GNUNET_YES == contains_signature)
307 memcpy (signature_tmp, signature, sizeof (struct GNUNET_CRYPTO_RsaSignature));
308 GNUNET_SERVER_notification_context_unicast (snc, lnc->nc->client, (const struct GNUNET_MessageHeader *) lnr_msg, GNUNET_NO);
310 GNUNET_free (lnr_msg);
313 static void handle_lookup_name (void *cls,
314 struct GNUNET_SERVER_Client * client,
315 const struct GNUNET_MessageHeader * message)
317 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_LOOKUP_NAME");
318 struct LookupNameContext lnc;
319 struct GNUNET_NAMESTORE_Client *nc;
326 if (ntohs (message->size) < sizeof (struct LookupNameMessage))
329 GNUNET_SERVER_receive_done (client, GNUNET_OK);
333 nc = client_lookup(client);
337 GNUNET_SERVER_receive_done (client, GNUNET_OK);
341 struct LookupNameMessage * ln_msg = (struct LookupNameMessage *) message;
342 id = ntohl (ln_msg->op_id);
343 name_len = ntohl (ln_msg->name_len);
344 type = ntohl (ln_msg->record_type);
346 if ((name_len == 0) || (name_len > 256))
349 GNUNET_SERVER_receive_done (client, GNUNET_OK);
353 name = (char *) &ln_msg[1];
354 if (name[name_len -1] != '\0')
357 GNUNET_SERVER_receive_done (client, GNUNET_OK);
361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up record for name `%s'\n", name);
363 /* do the actual lookup */
366 lnc.record_type = type;
367 res = GSN_database->iterate_records(GSN_database->cls, &ln_msg->zone, name, 0, &handle_lookup_name_it, &lnc);
369 GNUNET_SERVER_receive_done (client, GNUNET_OK);
372 static void handle_record_put (void *cls,
373 struct GNUNET_SERVER_Client * client,
374 const struct GNUNET_MessageHeader * message)
376 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_PUT");
377 struct GNUNET_NAMESTORE_Client *nc;
378 struct GNUNET_TIME_Absolute expire;
379 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key;
380 struct GNUNET_NAMESTORE_RecordData *rd;
381 struct GNUNET_CRYPTO_RsaSignature *signature;
382 struct RecordPutResponseMessage rpr_msg;
391 int res = GNUNET_SYSERR;
393 if (ntohs (message->size) < sizeof (struct RecordPutMessage))
396 GNUNET_SERVER_receive_done (client, GNUNET_OK);
400 nc = client_lookup (client);
404 GNUNET_SERVER_receive_done (client, GNUNET_OK);
408 struct RecordPutMessage * rp_msg = (struct RecordPutMessage *) message;
409 id = ntohl (rp_msg->op_id);
410 name_len = ntohs (rp_msg->name_len);
411 rd_ser_len = ntohs(rp_msg->rd_len);
412 msg_size = ntohs (message->size);
413 msg_size_exp = sizeof (struct RecordPutMessage) + sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) + name_len + rd_ser_len;
415 if (msg_size != msg_size_exp)
417 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
419 GNUNET_SERVER_receive_done (client, GNUNET_OK);
424 if ((name_len == 0) || (name_len > 256))
427 GNUNET_SERVER_receive_done (client, GNUNET_OK);
431 zone_key = (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) &rp_msg[1];
432 name = (char *) &zone_key[1];
434 if (name[name_len -1] != '\0')
437 GNUNET_SERVER_receive_done (client, GNUNET_OK);
441 expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
442 signature = (struct GNUNET_CRYPTO_RsaSignature *) &rp_msg->signature;
443 rd_ser = &name[name_len];
444 rd_count = GNUNET_NAMESTORE_records_deserialize(&rd, rd_ser, rd_ser_len);
446 /* Database operation */
447 res = GSN_database->put_records(GSN_database->cls,
454 GNUNET_NAMESTORE_records_free (rd_count, rd);
456 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting record for name `%s': %s\n",
457 name, (res == GNUNET_OK) ? "OK" : "FAIL");
461 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_PUT_RESPONSE");
462 rpr_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT_RESPONSE);
463 rpr_msg.op_id = rp_msg->op_id;
464 rpr_msg.header.size = htons (sizeof (struct RecordPutResponseMessage));
465 if (GNUNET_OK == res)
466 rpr_msg.op_result = htons (GNUNET_OK);
468 rpr_msg.op_result = htons (GNUNET_NO);
469 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rpr_msg, GNUNET_NO);
471 GNUNET_SERVER_receive_done (client, GNUNET_OK);
475 static void handle_record_create (void *cls,
476 struct GNUNET_SERVER_Client * client,
477 const struct GNUNET_MessageHeader * message)
479 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_CREATE");
480 struct GNUNET_NAMESTORE_Client *nc;
481 struct RecordCreateResponseMessage rcr_msg;
487 int res = GNUNET_SYSERR;
489 if (ntohs (message->size) < sizeof (struct RecordCreateMessage))
492 GNUNET_SERVER_receive_done (client, GNUNET_OK);
496 nc = client_lookup(client);
500 GNUNET_SERVER_receive_done (client, GNUNET_OK);
504 struct RecordCreateMessage * rp_msg = (struct RecordCreateMessage *) message;
505 id = ntohl (rp_msg->op_id);
506 name_len = ntohs (rp_msg->name_len);
507 msg_size = ntohs (message->size);
508 msg_size_exp = sizeof (struct RecordCreateMessage) + name_len + sizeof (struct GNUNET_NAMESTORE_RecordData);
510 if (msg_size != msg_size_exp)
512 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
514 GNUNET_SERVER_receive_done (client, GNUNET_OK);
519 if ((name_len == 0) || (name_len > 256))
522 GNUNET_SERVER_receive_done (client, GNUNET_OK);
526 if (name[name_len -1] != '\0')
529 GNUNET_SERVER_receive_done (client, GNUNET_OK);
537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_CREATE_RESPONSE");
538 rcr_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE_RESPONSE);
539 rcr_msg.op_id = rp_msg->op_id;
540 rcr_msg.header.size = htons (sizeof (struct RecordCreateResponseMessage));
541 if (GNUNET_OK == res)
542 rcr_msg.op_result = htons (GNUNET_OK);
544 rcr_msg.op_result = htons (GNUNET_NO);
545 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rcr_msg, GNUNET_NO);
547 GNUNET_SERVER_receive_done (client, GNUNET_OK);
550 static void handle_record_remove (void *cls,
551 struct GNUNET_SERVER_Client * client,
552 const struct GNUNET_MessageHeader * message)
554 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_REMOVE");
555 struct GNUNET_NAMESTORE_Client *nc;
556 struct RecordRemoveResponseMessage rrr_msg;
562 int res = GNUNET_SYSERR;
564 if (ntohs (message->size) < sizeof (struct RecordRemoveMessage))
567 GNUNET_SERVER_receive_done (client, GNUNET_OK);
571 nc = client_lookup(client);
575 GNUNET_SERVER_receive_done (client, GNUNET_OK);
579 struct RecordRemoveMessage * rp_msg = (struct RecordRemoveMessage *) message;
580 id = ntohl (rp_msg->op_id);
581 name_len = ntohs (rp_msg->name_len);
582 msg_size = ntohs (message->size);
583 msg_size_exp = sizeof (struct RecordRemoveMessage) + name_len + sizeof (struct GNUNET_NAMESTORE_RecordData);
585 if (msg_size != msg_size_exp)
587 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
589 GNUNET_SERVER_receive_done (client, GNUNET_OK);
594 if ((name_len == 0) || (name_len > 256))
597 GNUNET_SERVER_receive_done (client, GNUNET_OK);
601 if (name[name_len -1] != '\0')
604 GNUNET_SERVER_receive_done (client, GNUNET_OK);
612 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_REMOVE_RESPONSE");
613 rrr_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE_RESPONSE);
614 rrr_msg.op_id = rp_msg->op_id;
615 rrr_msg.header.size = htons (sizeof (struct RecordRemoveResponseMessage));
616 if (GNUNET_OK == res)
617 rrr_msg.op_result = htons (GNUNET_OK);
619 rrr_msg.op_result = htons (GNUNET_NO);
620 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rrr_msg, GNUNET_NO);
622 GNUNET_SERVER_receive_done (client, GNUNET_OK);
625 struct ZoneIterationProcResult
628 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded zone_key;
631 struct GNUNET_CRYPTO_RsaSignature signature;
632 struct GNUNET_TIME_Absolute expire;
642 void zone_iteration_proc (void *cls,
643 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
644 struct GNUNET_TIME_Absolute expire,
646 unsigned int rd_count,
647 const struct GNUNET_NAMESTORE_RecordData *rd,
648 const struct GNUNET_CRYPTO_RsaSignature *signature)
650 struct ZoneIterationProcResult *zipr = cls;
652 if (zone_key != NULL)
654 zipr->zone_key = *zone_key;
655 zipr->have_zone_key = GNUNET_YES;
658 zipr->have_zone_key = GNUNET_NO;
660 zipr->expire = expire;
664 memcpy (zipr->name, name, strlen(name) + 1);
665 zipr->have_name = GNUNET_YES;
668 zipr->have_name = GNUNET_NO;
670 if (signature != NULL)
672 zipr->signature = *signature;
673 zipr->have_signature = GNUNET_YES;
676 zipr->have_signature = GNUNET_NO;
678 if ((rd_count > 0) && (rd != NULL))
680 len = GNUNET_NAMESTORE_records_serialize (&zipr->rd_ser, rd_count, rd);
681 zipr->rd_ser_len = len;
685 static void handle_iteration_start (void *cls,
686 struct GNUNET_SERVER_Client * client,
687 const struct GNUNET_MessageHeader * message)
689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_START");
691 struct ZoneIterationStartMessage * zis_msg = (struct ZoneIterationStartMessage *) message;
692 struct GNUNET_NAMESTORE_Client *nc;
693 struct GNUNET_NAMESTORE_ZoneIteration *zi;
694 struct ZoneIterationResponseMessage zir_msg;
695 struct ZoneIterationProcResult zipr;
698 nc = client_lookup(client);
702 GNUNET_SERVER_receive_done (client, GNUNET_OK);
706 zi = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_ZoneIteration));
707 zi->op_id = ntohl (zis_msg->op_id);
710 zi->zone = zis_msg->zone;
712 GNUNET_CONTAINER_DLL_insert (nc->op_head, nc->op_tail, zi);
714 res = GSN_database->iterate_records (GSN_database->cls, &zis_msg->zone, NULL, zi->offset , &zone_iteration_proc, &zipr);
715 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "iterate_records result %u\n", res);
718 /* GNUNET_OK on success */
722 /* GNUNET_SYSERR on error */
725 /* GNUNET_NO if there were no results, */
733 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "ZONE_ITERATION_RESPONSE");
734 zir_msg.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
735 zir_msg.op_id = htonl(zi->op_id);
736 zir_msg.header.size = htons (sizeof (struct ZoneIterationResponseMessage));
739 GNUNET_SERVER_notification_context_unicast (snc, zi->client->client, (const struct GNUNET_MessageHeader *) &zir_msg, GNUNET_NO);
742 GNUNET_SERVER_receive_done (client, GNUNET_OK);
745 static void handle_iteration_stop (void *cls,
746 struct GNUNET_SERVER_Client * client,
747 const struct GNUNET_MessageHeader * message)
749 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_STOP");
751 struct GNUNET_NAMESTORE_Client *nc;
752 struct GNUNET_NAMESTORE_ZoneIteration *zi;
753 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
756 nc = client_lookup(client);
760 GNUNET_SERVER_receive_done (client, GNUNET_OK);
764 id = ntohl (zis_msg->op_id);
765 for (zi = nc->op_head; zi != NULL; zi = zi->next)
773 GNUNET_SERVER_receive_done (client, GNUNET_OK);
777 GNUNET_CONTAINER_DLL_remove(nc->op_head, nc->op_tail, zi);
778 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration for zone `%s'\n", GNUNET_h2s (&zi->zone));
781 GNUNET_SERVER_receive_done (client, GNUNET_OK);
784 static void handle_iteration_next (void *cls,
785 struct GNUNET_SERVER_Client * client,
786 const struct GNUNET_MessageHeader * message)
788 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_NEXT");
790 struct GNUNET_NAMESTORE_Client *nc;
791 struct GNUNET_NAMESTORE_ZoneIteration *zi;
792 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
796 nc = client_lookup(client);
800 GNUNET_SERVER_receive_done (client, GNUNET_OK);
804 id = ntohl (zis_msg->op_id);
805 for (zi = nc->op_head; zi != NULL; zi = zi->next)
813 GNUNET_SERVER_receive_done (client, GNUNET_OK);
818 res = GSN_database->iterate_records (GSN_database->cls, &zi->zone, NULL, zi->offset , &zone_iteration_proc, zi);
824 * Process template requests.
827 * @param server the initialized server
828 * @param cfg configuration to use
831 run (void *cls, struct GNUNET_SERVER_Handle *server,
832 const struct GNUNET_CONFIGURATION_Handle *cfg)
836 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting namestore service\n");
838 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
839 {&handle_start, NULL,
840 GNUNET_MESSAGE_TYPE_NAMESTORE_START, sizeof (struct StartMessage)},
841 {&handle_lookup_name, NULL,
842 GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME, 0},
843 {&handle_record_put, NULL,
844 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT, 0},
845 {&handle_record_create, NULL,
846 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE, 0},
847 {&handle_record_remove, NULL,
848 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE, 0},
849 {&handle_iteration_start, NULL,
850 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START, sizeof (struct ZoneIterationStartMessage)},
851 {&handle_iteration_stop, NULL,
852 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP, sizeof (struct ZoneIterationStopMessage)},
853 {&handle_iteration_next, NULL,
854 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT, 0},
860 /* Loading database plugin */
862 GNUNET_CONFIGURATION_get_value_string (cfg, "namestore", "database",
864 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No database backend configured\n");
866 GNUNET_asprintf (&db_lib_name, "libgnunet_plugin_namestore_%s", database);
867 GSN_database = GNUNET_PLUGIN_load (db_lib_name, (void *) GSN_cfg);
868 if (GSN_database == NULL)
869 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not load database backend `%s'\n",
871 GNUNET_free (database);
873 /* Configuring server handles */
874 GNUNET_SERVER_add_handlers (server, handlers);
875 snc = GNUNET_SERVER_notification_context_create (server, 16);
876 GNUNET_SERVER_disconnect_notify (server,
877 &client_disconnect_notification,
880 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
887 * The main function for the template service.
889 * @param argc number of arguments from the command line
890 * @param argv command line arguments
891 * @return 0 ok, 1 on error
894 main (int argc, char *const *argv)
897 GNUNET_SERVICE_run (argc, argv, "namestore",
898 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
901 /* end of gnunet-service-namestore.c */