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"
34 #define LOG_STRERROR_FILE(kind,syscall,filename) GNUNET_log_from_strerror_file (kind, "util", syscall, filename)
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;
61 struct GNUNET_NAMESTORE_Client
63 struct GNUNET_NAMESTORE_Client *next;
64 struct GNUNET_NAMESTORE_Client *prev;
66 struct GNUNET_SERVER_Client * client;
68 struct GNUNET_NAMESTORE_ZoneIteration *op_head;
69 struct GNUNET_NAMESTORE_ZoneIteration *op_tail;
72 struct GNUNET_NAMESTORE_CryptoContainer
77 struct GNUNET_CRYPTO_RsaPrivateKey *privkey;
78 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey;
83 * Configuration handle.
85 const struct GNUNET_CONFIGURATION_Handle *GSN_cfg;
90 struct GNUNET_NAMESTORE_PluginFunctions *GSN_database;
95 static char *zonefile_directory;
97 static char *db_lib_name;
101 * Our notification context.
103 static struct GNUNET_SERVER_NotificationContext *snc;
105 static struct GNUNET_NAMESTORE_Client *client_head;
106 static struct GNUNET_NAMESTORE_Client *client_tail;
108 struct GNUNET_CONTAINER_MultiHashMap *zonekeys;
112 * Write zonefile to disk
113 * @param file where to write
116 * @return GNUNET_OK on success, GNUNET_SYSERR on fail
119 int write_key_to_file (const char *filename, struct GNUNET_NAMESTORE_CryptoContainer *c)
121 struct GNUNET_CRYPTO_RsaPrivateKey *ret = c->privkey;
122 struct GNUNET_CRYPTO_RsaPrivateKeyBinaryEncoded *enc;
123 struct GNUNET_DISK_FileHandle *fd;
125 if (GNUNET_YES == GNUNET_DISK_file_test (filename))
127 GNUNET_HashCode zone;
128 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pubkey;
129 struct GNUNET_CRYPTO_RsaPrivateKey * privkey;
131 privkey = GNUNET_CRYPTO_rsa_key_create_from_file(filename);
134 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
135 _("File zone `%s' but corrupt content already exists, failed to write! \n"), GNUNET_h2s (&zone));
136 return GNUNET_SYSERR;
139 GNUNET_CRYPTO_rsa_key_get_public(privkey, &pubkey);
140 GNUNET_CRYPTO_hash(&pubkey, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &zone);
141 GNUNET_CRYPTO_rsa_key_free(privkey);
143 if (0 == memcmp (&zone, &c->zone, sizeof(zone)))
145 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
146 _("File zone `%s' containing this key already exists\n"), GNUNET_h2s (&zone));
151 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
152 _("File zone `%s' but different zone key already exists, failed to write! \n"), GNUNET_h2s (&zone));
156 fd = GNUNET_DISK_file_open (filename, GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_FAILIFEXISTS, GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE);
161 if (GNUNET_YES != GNUNET_DISK_file_test (filename))
163 /* must exist but not be accessible, fail for good! */
164 if (0 != ACCESS (filename, R_OK))
165 LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_ERROR, "access", filename);
167 GNUNET_break (0); /* what is going on!? */
168 return GNUNET_SYSERR;
171 LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_ERROR, "open", filename);
172 return GNUNET_SYSERR;
175 if (GNUNET_YES != GNUNET_DISK_file_lock (fd, 0, sizeof (struct GNUNET_CRYPTO_RsaPrivateKeyBinaryEncoded), GNUNET_YES))
176 return GNUNET_SYSERR;
177 enc = GNUNET_CRYPTO_rsa_encode_key (ret);
178 GNUNET_assert (enc != NULL);
179 GNUNET_assert (ntohs (enc->len) == GNUNET_DISK_file_write (fd, enc, ntohs (enc->len)));
181 GNUNET_DISK_file_sync (fd);
182 if (GNUNET_YES != GNUNET_DISK_file_unlock (fd, 0, sizeof (struct GNUNET_CRYPTO_RsaPrivateKeyBinaryEncoded)))
183 LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "fcntl", filename);
184 GNUNET_assert (GNUNET_YES == GNUNET_DISK_file_close (fd));
186 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
187 _("Stored zonekey for zone `%s' in file `%s'\n"),GNUNET_h2s(&c->zone), c->filename);
191 int zone_to_disk_it (void *cls,
192 const GNUNET_HashCode * key,
195 struct GNUNET_NAMESTORE_CryptoContainer * c = value;
197 if (c->filename != NULL)
198 write_key_to_file(c->filename, c);
201 GNUNET_asprintf(&c->filename, "%s/%s.zone", zonefile_directory, GNUNET_h2s_full (&c->zone));
202 write_key_to_file(c->filename, c);
205 GNUNET_CONTAINER_multihashmap_remove (zonekeys, key, value);;
206 GNUNET_CRYPTO_rsa_key_free(c->privkey);
207 GNUNET_free (c->pubkey);
208 GNUNET_free(c->filename);
216 * Task run during shutdown.
222 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
224 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping namestore service\n");
225 struct GNUNET_NAMESTORE_ZoneIteration * no;
226 struct GNUNET_NAMESTORE_ZoneIteration * tmp;
227 struct GNUNET_NAMESTORE_Client * nc;
228 struct GNUNET_NAMESTORE_Client * next;
230 GNUNET_SERVER_notification_context_destroy (snc);
233 GNUNET_CONTAINER_multihashmap_iterate(zonekeys, &zone_to_disk_it, NULL);
235 for (nc = client_head; nc != NULL; nc = next)
238 for (no = nc->op_head; no != NULL; no = tmp)
241 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, no);
245 GNUNET_SERVER_client_drop(nc->client);
246 GNUNET_CONTAINER_DLL_remove (client_head, client_tail, nc);
250 GNUNET_break (NULL == GNUNET_PLUGIN_unload (db_lib_name, GSN_database));
251 GNUNET_free (db_lib_name);
252 GNUNET_free_non_null(zonefile_directory);
255 static struct GNUNET_NAMESTORE_Client *
256 client_lookup (struct GNUNET_SERVER_Client *client)
258 struct GNUNET_NAMESTORE_Client * nc;
260 GNUNET_assert (NULL != client);
262 for (nc = client_head; nc != NULL; nc = nc->next)
264 if (client == nc->client)
271 * Called whenever a client is disconnected. Frees our
272 * resources associated with that client.
275 * @param client identification of the client
278 client_disconnect_notification (void *cls, struct GNUNET_SERVER_Client *client)
280 struct GNUNET_NAMESTORE_ZoneIteration * no;
281 struct GNUNET_NAMESTORE_Client * nc;
285 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p disconnected \n", client);
287 nc = client_lookup (client);
289 if ((NULL == client) || (NULL == nc))
292 for (no = nc->op_head; no != NULL; no = no->next)
294 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, no);
299 GNUNET_SERVER_client_drop(nc->client);
300 GNUNET_CONTAINER_DLL_remove (client_head, client_tail, nc);
306 static void handle_start (void *cls,
307 struct GNUNET_SERVER_Client * client,
308 const struct GNUNET_MessageHeader * message)
310 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected\n", client);
312 struct GNUNET_NAMESTORE_Client * nc = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_Client));
314 GNUNET_SERVER_notification_context_add (snc, client);
315 GNUNET_CONTAINER_DLL_insert(client_head, client_tail, nc);
316 GNUNET_SERVER_client_keep (client);
317 GNUNET_SERVER_receive_done (client, GNUNET_OK);
320 struct LookupNameContext
322 struct GNUNET_NAMESTORE_Client *nc;
324 uint32_t record_type;
325 GNUNET_HashCode *zone;
329 void drop_iterator (void *cls,
330 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
331 struct GNUNET_TIME_Absolute expire,
334 const struct GNUNET_NAMESTORE_RecordData *rd,
335 const struct GNUNET_CRYPTO_RsaSignature *signature)
337 GNUNET_HashCode zone_hash;
339 if (NULL != zone_key)
341 GNUNET_CRYPTO_hash(zone_key, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &zone_hash);
342 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Deleting zone `%s'\n", GNUNET_h2s (&zone_hash));
343 GSN_database->delete_zone (GSN_database->cls, &zone_hash);
347 (*stop) = GNUNET_YES;
353 handle_lookup_name_it (void *cls,
354 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
355 struct GNUNET_TIME_Absolute expire,
357 unsigned int rd_count,
358 const struct GNUNET_NAMESTORE_RecordData *rd,
359 const struct GNUNET_CRYPTO_RsaSignature *signature)
362 struct LookupNameContext *lnc = cls;
363 struct LookupNameResponseMessage *lnr_msg;
364 struct GNUNET_NAMESTORE_RecordData *rd_selected = NULL;
371 int copied_elements = 0;
372 int contains_signature = 0;
376 name_len = strlen(name) + 1;
378 /* count records to copy */
381 if (lnc->record_type != 0)
383 /* special record type needed */
384 for (c = 0; c < rd_count; c ++)
385 if (rd[c].record_type == lnc->record_type)
386 copied_elements++; /* found matching record */
387 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u records with type %u for name `%s' in zone `%s'\n",
388 copied_elements, lnc->record_type, lnc->name, GNUNET_h2s(lnc->zone));
389 rd_selected = GNUNET_malloc (copied_elements * sizeof (struct GNUNET_NAMESTORE_RecordData));
391 for (c = 0; c < rd_count; c ++)
393 if (rd[c].record_type == lnc->record_type)
395 /* found matching record */
396 memcpy (&rd_selected[copied_elements], &rd[c], sizeof (struct GNUNET_NAMESTORE_RecordData));
403 copied_elements = rd_count;
404 rd_selected = (struct GNUNET_NAMESTORE_RecordData *) rd;
412 expire = GNUNET_TIME_UNIT_ZERO_ABS;
415 rd_ser_len = GNUNET_NAMESTORE_records_get_size(copied_elements, rd_selected);
416 char rd_ser[rd_ser_len];
417 GNUNET_NAMESTORE_records_serialize(copied_elements, rd_selected, rd_ser_len, rd_ser);
419 if (rd_selected != rd)
420 GNUNET_free (rd_selected);
422 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u records for name `%s' in zone `%s'\n",
423 copied_elements, lnc->name, GNUNET_h2s(lnc->zone));
425 if ((copied_elements == rd_count) && (NULL != signature))
426 contains_signature = GNUNET_YES;
428 contains_signature = GNUNET_NO;
430 r_size = sizeof (struct LookupNameResponseMessage) +
431 sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) +
435 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "NAMESTORE_LOOKUP_NAME_RESPONSE");
436 lnr_msg = GNUNET_malloc (r_size);
437 lnr_msg->gns_header.header.type = ntohs (GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME_RESPONSE);
438 lnr_msg->gns_header.header.size = ntohs (r_size);
439 lnr_msg->gns_header.r_id = htonl (lnc->request_id);
440 lnr_msg->rd_count = htons (copied_elements);
441 lnr_msg->rd_len = htons (rd_ser_len);
442 lnr_msg->name_len = htons (name_len);
443 lnr_msg->contains_sig = htons (contains_signature);
444 lnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
446 if (zone_key != NULL)
447 lnr_msg->public_key = (*zone_key);
449 memset(&lnr_msg->public_key, '\0', sizeof (lnr_msg->public_key));
450 if (GNUNET_YES == contains_signature)
451 lnr_msg->signature = *signature;
453 memset (&lnr_msg->signature, '\0', sizeof (lnr_msg->signature));
455 name_tmp = (char *) &lnr_msg[1];
456 rd_tmp = &name_tmp[name_len];
458 memcpy (name_tmp, name, name_len);
459 memcpy (rd_tmp, rd_ser, rd_ser_len);
461 GNUNET_SERVER_notification_context_unicast (snc, lnc->nc->client, (const struct GNUNET_MessageHeader *) lnr_msg, GNUNET_NO);
463 GNUNET_free (lnr_msg);
466 static void handle_lookup_name (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_LOOKUP_NAME");
471 struct LookupNameContext lnc;
472 struct GNUNET_NAMESTORE_Client *nc;
478 if (ntohs (message->size) < sizeof (struct LookupNameMessage))
481 GNUNET_SERVER_receive_done (client, GNUNET_OK);
485 nc = client_lookup(client);
489 GNUNET_SERVER_receive_done (client, GNUNET_OK);
493 struct LookupNameMessage * ln_msg = (struct LookupNameMessage *) message;
494 rid = ntohl (ln_msg->gns_header.r_id);
495 name_len = ntohl (ln_msg->name_len);
496 type = ntohl (ln_msg->record_type);
498 if ((name_len == 0) || (name_len > 256))
501 GNUNET_SERVER_receive_done (client, GNUNET_OK);
505 name = (char *) &ln_msg[1];
506 if (name[name_len -1] != '\0')
509 GNUNET_SERVER_receive_done (client, GNUNET_OK);
514 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up all records for name `%s' in zone `%s'\n", name, GNUNET_h2s(&ln_msg->zone));
516 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));
518 /* do the actual lookup */
519 lnc.request_id = rid;
521 lnc.record_type = type;
523 lnc.zone = &ln_msg->zone;
524 GSN_database->iterate_records(GSN_database->cls, &ln_msg->zone, name, 0, &handle_lookup_name_it, &lnc);
526 GNUNET_SERVER_receive_done (client, GNUNET_OK);
529 static void handle_record_put (void *cls,
530 struct GNUNET_SERVER_Client * client,
531 const struct GNUNET_MessageHeader * message)
533 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_PUT");
534 struct GNUNET_NAMESTORE_Client *nc;
535 struct GNUNET_TIME_Absolute expire;
536 struct GNUNET_CRYPTO_RsaSignature *signature;
537 struct RecordPutResponseMessage rpr_msg;
546 int res = GNUNET_SYSERR;
548 if (ntohs (message->size) < sizeof (struct RecordPutMessage))
551 GNUNET_SERVER_receive_done (client, GNUNET_OK);
555 nc = client_lookup (client);
559 GNUNET_SERVER_receive_done (client, GNUNET_OK);
563 struct RecordPutMessage * rp_msg = (struct RecordPutMessage *) message;
565 rid = ntohl (rp_msg->gns_header.r_id);
566 msg_size = ntohs (rp_msg->gns_header.header.size);
567 name_len = ntohs (rp_msg->name_len);
568 rd_count = ntohs (rp_msg->rd_count);
569 rd_ser_len = ntohs(rp_msg->rd_len);
571 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
574 GNUNET_SERVER_receive_done (client, GNUNET_OK);
578 if ((rd_count < 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
581 GNUNET_SERVER_receive_done (client, GNUNET_OK);
585 msg_size_exp = sizeof (struct RecordPutMessage) + name_len + rd_ser_len;
586 if (msg_size != msg_size_exp)
588 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
590 GNUNET_SERVER_receive_done (client, GNUNET_OK);
593 if ((name_len == 0) || (name_len > 256))
596 GNUNET_SERVER_receive_done (client, GNUNET_OK);
600 name = (char *) &rp_msg[1];
602 if (name[name_len -1] != '\0')
605 GNUNET_SERVER_receive_done (client, GNUNET_OK);
609 expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
610 signature = (struct GNUNET_CRYPTO_RsaSignature *) &rp_msg->signature;
612 rd_ser = &name[name_len];
613 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
614 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
615 if (res != GNUNET_OK)
621 GNUNET_HashCode zone_hash;
622 GNUNET_CRYPTO_hash (&rp_msg->public_key, sizeof (rp_msg->public_key), &zone_hash);
624 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting %u record for name `%s' in zone `%s'\n", rd_count, name, GNUNET_h2s(&zone_hash));
626 /* Database operation */
627 res = GSN_database->put_records(GSN_database->cls,
634 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting record for name `%s': %s\n",
635 name, (res == GNUNET_OK) ? "OK" : "FAIL");
639 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_PUT_RESPONSE");
640 rpr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT_RESPONSE);
641 rpr_msg.gns_header.header.size = htons (sizeof (struct RecordPutResponseMessage));
642 rpr_msg.gns_header.r_id = htonl (rid);
643 rpr_msg.op_result = htonl (res);
644 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rpr_msg, GNUNET_NO);
646 GNUNET_SERVER_receive_done (client, GNUNET_OK);
649 struct CreateRecordContext
651 struct GNUNET_NAMESTORE_RecordData *rd;
652 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
653 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey;
654 struct GNUNET_TIME_Absolute expire;
661 handle_create_record_it (void *cls,
662 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey,
663 struct GNUNET_TIME_Absolute expire,
665 unsigned int rd_count,
666 const struct GNUNET_NAMESTORE_RecordData *rd,
667 const struct GNUNET_CRYPTO_RsaSignature *signature)
669 struct CreateRecordContext * crc = cls;
670 struct GNUNET_CRYPTO_RsaSignature *signature_new = NULL;
671 struct GNUNET_NAMESTORE_RecordData *rd_new = NULL;
672 struct GNUNET_TIME_Absolute block_expiration;
674 int exist = GNUNET_SYSERR;
675 int update = GNUNET_NO;
677 int rd_count_new = 0;
679 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u existing records for `%s'\n", rd_count, crc->name);
681 for (c = 0; c < rd_count; c++)
684 if ((crc->rd->record_type == rd[c].record_type) &&
685 (crc->rd->data_size == rd[c].data_size) &&
686 (0 == memcmp (crc->rd->data, rd[c].data, rd[c].data_size)))
688 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found existing records for `%s' to update expiration date!\n", crc->name);
690 if (crc->rd->expiration.abs_value != rd[c].expiration.abs_value)
696 if (exist == GNUNET_SYSERR)
697 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "NO existing records for `%s' to update!\n", crc->name);
699 if (exist == GNUNET_SYSERR)
701 rd_new = GNUNET_malloc ((rd_count+1) * sizeof (struct GNUNET_NAMESTORE_RecordData));
702 memcpy (rd_new, rd, rd_count * sizeof (struct GNUNET_NAMESTORE_RecordData));
703 rd_count_new = rd_count + 1;
704 rd_new[rd_count] = *(crc->rd);
705 signature_new = GNUNET_NAMESTORE_create_signature (crc->pkey, crc->name, rd_new, rd_count+1);
707 if (NULL == signature_new)
714 else if (update == GNUNET_NO)
716 /* Exact same record already exists */
717 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No update for %s' record required!\n", crc->name);
721 else if (update == GNUNET_YES)
724 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating existing records for `%s'!\n", crc->name);
725 rd_new = GNUNET_malloc ((rd_count) * sizeof (struct GNUNET_NAMESTORE_RecordData));
726 memcpy (rd_new, rd, rd_count * sizeof (struct GNUNET_NAMESTORE_RecordData));
727 rd_count_new = rd_count;
728 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating expiration from %llu to %llu!\n", rd_new[exist].expiration.abs_value, crc->rd->expiration.abs_value);
729 rd_new[exist].expiration = crc->rd->expiration;
730 signature_new = GNUNET_NAMESTORE_create_signature (crc->pkey, crc->name, rd_new, rd_count_new);
731 if (NULL == signature_new)
739 block_expiration = GNUNET_TIME_absolute_max(crc->expire, expire);
740 if (block_expiration.abs_value != expire.abs_value)
741 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updated block expiration time\n");
744 /* Database operation */
745 GNUNET_assert ((rd_new != NULL) && (rd_count_new > 0));
746 res = GSN_database->put_records(GSN_database->cls,
747 (const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) crc->pubkey,
750 rd_count_new, rd_new,
752 GNUNET_break (GNUNET_OK == res);
753 if (res == GNUNET_OK)
754 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully put record for `%s' in database \n", crc->name);
756 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to put record for `%s' in database \n", crc->name);
760 GNUNET_free_non_null (rd_new);
761 GNUNET_free_non_null (signature_new);
765 /* failed to create the record */
766 crc->res = GNUNET_SYSERR;
769 /* database operations OK */
770 if (GNUNET_YES == update)
771 /* we updated an existing record */
772 crc->res = GNUNET_NO;
774 /* we created a new record */
775 crc->res = GNUNET_YES;
778 /* identical entry existed, so we did nothing */
779 crc->res = GNUNET_NO;
785 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Update result for name `%s' %u\n", crc->name, res);
789 static void handle_record_create (void *cls,
790 struct GNUNET_SERVER_Client * client,
791 const struct GNUNET_MessageHeader * message)
793 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_CREATE");
794 struct GNUNET_NAMESTORE_Client *nc;
795 struct CreateRecordContext crc;
796 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
797 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
798 struct RecordCreateResponseMessage rcr_msg;
799 GNUNET_HashCode pubkey_hash;
811 int res = GNUNET_SYSERR;
812 crc.res = GNUNET_SYSERR;
814 if (ntohs (message->size) < sizeof (struct RecordCreateMessage))
817 GNUNET_SERVER_receive_done (client, GNUNET_OK);
821 nc = client_lookup(client);
825 GNUNET_SERVER_receive_done (client, GNUNET_OK);
829 struct RecordCreateMessage * rp_msg = (struct RecordCreateMessage *) message;
830 rid = ntohl (rp_msg->gns_header.r_id);
831 name_len = ntohs (rp_msg->name_len);
832 msg_size = ntohs (message->size);
833 rd_count = ntohs (rp_msg->rd_count);
834 rd_ser_len = ntohs (rp_msg->rd_len);
835 key_len = ntohs (rp_msg->pkey_len);
836 msg_size_exp = sizeof (struct RecordCreateMessage) + key_len + name_len + rd_ser_len;
838 if (msg_size != msg_size_exp)
840 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
842 GNUNET_SERVER_receive_done (client, GNUNET_OK);
846 if ((name_len == 0) || (name_len > 256))
849 GNUNET_SERVER_receive_done (client, GNUNET_OK);
853 pkey_tmp = (char *) &rp_msg[1];
854 name_tmp = &pkey_tmp[key_len];
855 rd_ser = &name_tmp[name_len];
857 if (name_tmp[name_len -1] != '\0')
860 GNUNET_SERVER_receive_done (client, GNUNET_OK);
864 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
866 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
867 if ((res != GNUNET_OK) || (rd_count != 1))
873 /* Extracting and converting private key */
874 pkey = GNUNET_CRYPTO_rsa_decode_key((char *) pkey_tmp, key_len);
875 GNUNET_assert (pkey != NULL);
876 GNUNET_CRYPTO_rsa_key_get_public(pkey, &pub);
877 GNUNET_CRYPTO_hash (&pub, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &pubkey_hash);
879 crc.expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
880 crc.res = GNUNET_SYSERR;
886 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating record for name `%s' in zone `%s'\n", name_tmp, GNUNET_h2s(&pubkey_hash));
888 /* Get existing records for name */
889 res = GSN_database->iterate_records(GSN_database->cls, &pubkey_hash, name_tmp, 0, &handle_create_record_it, &crc);
890 if (res != GNUNET_SYSERR)
892 GNUNET_CRYPTO_rsa_key_free(pkey);
896 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_CREATE_RESPONSE");
897 rcr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE_RESPONSE);
898 rcr_msg.gns_header.header.size = htons (sizeof (struct RecordCreateResponseMessage));
899 rcr_msg.gns_header.r_id = htonl (rid);
900 if ((GNUNET_OK == res) && (crc.res == GNUNET_YES))
901 rcr_msg.op_result = htonl (GNUNET_YES);
902 else if ((GNUNET_OK == res) && (crc.res == GNUNET_NO))
903 rcr_msg.op_result = htonl (GNUNET_NO);
905 rcr_msg.op_result = htonl (GNUNET_SYSERR);
906 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rcr_msg, GNUNET_NO);
908 GNUNET_SERVER_receive_done (client, GNUNET_OK);
912 struct RemoveRecordContext
914 struct GNUNET_NAMESTORE_RecordData *rd;
915 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
920 handle_record_remove_it (void *cls,
921 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
922 struct GNUNET_TIME_Absolute expire,
924 unsigned int rd_count,
925 const struct GNUNET_NAMESTORE_RecordData *rd,
926 const struct GNUNET_CRYPTO_RsaSignature *signature)
928 struct RemoveRecordContext *rrc = cls;
932 unsigned int rd_count_new;
934 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name `%s 'currently has %u records\n", name, rd_count);
938 /* Could not find record to remove */
943 /* Find record to remove */
944 found = GNUNET_SYSERR;
945 for (c = 0; c < rd_count; c++)
947 if ((rd[c].expiration.abs_value == rrc->rd->expiration.abs_value) &&
948 (rd[c].flags == rrc->rd->flags) &&
949 (rd[c].record_type == rrc->rd->record_type) &&
950 (rd[c].data_size == rrc->rd->data_size) &&
951 (0 == memcmp (rd[c].data, rrc->rd->data, rrc->rd->data_size)))
953 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found record to remove!\n", rd_count);
958 if (GNUNET_SYSERR == found)
960 /* Could not find record to remove */
965 rd_count_new = rd_count -1;
966 struct GNUNET_NAMESTORE_RecordData rd_new[rd_count_new];
969 for (c = 0; c < rd_count; c++)
973 GNUNET_assert (c2 < rd_count_new);
979 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name `%s' now has %u records\n", name, rd_count_new);
981 /* Create new signature */
982 struct GNUNET_CRYPTO_RsaSignature * new_signature;
983 new_signature = GNUNET_NAMESTORE_create_signature (rrc->pkey, name, rd_new, rd_count_new);
985 if (new_signature == NULL)
987 /* Signature failed */
993 res = GSN_database->put_records(GSN_database->cls,
997 rd_count_new, rd_new,
999 GNUNET_free (new_signature);
1001 if (GNUNET_OK != res)
1003 /* Could put records into database */
1011 static void handle_record_remove (void *cls,
1012 struct GNUNET_SERVER_Client * client,
1013 const struct GNUNET_MessageHeader * message)
1015 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_REMOVE");
1016 struct GNUNET_NAMESTORE_Client *nc;
1017 struct RecordRemoveResponseMessage rrr_msg;
1018 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
1019 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
1020 GNUNET_HashCode pubkey_hash;
1021 char * pkey_tmp = NULL;
1022 char * name_tmp = NULL;
1023 char * rd_ser = NULL;
1025 size_t name_len = 0;
1026 size_t rd_ser_len = 0;
1027 size_t msg_size = 0;
1028 size_t msg_size_exp = 0;
1032 int res = GNUNET_SYSERR;
1034 if (ntohs (message->size) < sizeof (struct RecordRemoveMessage))
1036 GNUNET_break_op (0);
1037 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1041 nc = client_lookup(client);
1044 GNUNET_break_op (0);
1045 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1049 struct RecordRemoveMessage * rr_msg = (struct RecordRemoveMessage *) message;
1050 rid = ntohl (rr_msg->gns_header.r_id);
1051 name_len = ntohs (rr_msg->name_len);
1052 rd_ser_len = ntohs (rr_msg->rd_len);
1053 rd_count = ntohs (rr_msg->rd_count);
1054 key_len = ntohs (rr_msg->pkey_len);
1055 msg_size = ntohs (message->size);
1057 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
1059 GNUNET_break_op (0);
1060 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1064 if ((rd_count != 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
1066 GNUNET_break_op (0);
1067 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1071 msg_size_exp = sizeof (struct RecordRemoveMessage) + key_len + name_len + rd_ser_len;
1072 if (msg_size != msg_size_exp)
1074 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
1075 GNUNET_break_op (0);
1076 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1080 if ((rd_count != 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
1082 GNUNET_break_op (0);
1083 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1087 pkey_tmp = (char *) &rr_msg[1];
1088 name_tmp = &pkey_tmp[key_len];
1089 rd_ser = &name_tmp[name_len];
1092 if ((name_len == 0) || (name_len > 256))
1094 GNUNET_break_op (0);
1095 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1099 if (name_tmp[name_len -1] != '\0')
1101 GNUNET_break_op (0);
1102 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1106 /* Extracting and converting private key */
1107 pkey = GNUNET_CRYPTO_rsa_decode_key((char *) pkey_tmp, key_len);
1108 GNUNET_assert (pkey != NULL);
1109 GNUNET_CRYPTO_rsa_key_get_public(pkey, &pub);
1110 GNUNET_CRYPTO_hash (&pub, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &pubkey_hash);
1112 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
1113 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
1114 if ((res != GNUNET_OK) || (rd_count != 1))
1116 GNUNET_break_op (0);
1120 struct RemoveRecordContext rrc;
1124 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing record for name `%s' in zone `%s'\n", name_tmp, GNUNET_h2s(&pubkey_hash));
1126 /* Database operation */
1127 res = GSN_database->iterate_records (GSN_database->cls,
1131 handle_record_remove_it, &rrc);
1133 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing record for name `%s': %s\n",
1134 name_tmp, (rrc.op_res == 0) ? "OK" : "FAIL");
1139 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_REMOVE_RESPONSE");
1140 rrr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE_RESPONSE);
1141 rrr_msg.gns_header.header.size = htons (sizeof (struct RecordRemoveResponseMessage));
1142 rrr_msg.gns_header.r_id = htonl (rid);
1143 rrr_msg.op_result = htonl (res);
1144 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rrr_msg, GNUNET_NO);
1146 GNUNET_CRYPTO_rsa_key_free (pkey);
1148 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1152 struct ZoneToNameCtx
1154 struct GNUNET_NAMESTORE_Client *nc;
1159 handle_zone_to_name_it (void *cls,
1160 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
1161 struct GNUNET_TIME_Absolute expire,
1163 unsigned int rd_count,
1164 const struct GNUNET_NAMESTORE_RecordData *rd,
1165 const struct GNUNET_CRYPTO_RsaSignature *signature)
1167 struct ZoneToNameCtx * ztn_ctx = cls;
1168 struct ZoneToNameResponseMessage *ztnr_msg;
1169 int16_t res = GNUNET_SYSERR;
1170 uint16_t name_len = 0;
1171 uint16_t rd_ser_len = 0 ;
1172 int32_t contains_sig = 0;
1173 size_t msg_size = 0;
1175 char *rd_ser = NULL;
1180 if ((zone_key != NULL) && (name != NULL))
1183 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found results: name is `%s', has %u records\n", name, rd_count);
1185 name_len = strlen (name);
1189 /* no result found */
1190 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found no results\n");
1197 rd_ser_len = GNUNET_NAMESTORE_records_get_size (rd_count, rd);
1198 rd_ser = GNUNET_malloc (rd_ser_len);
1199 GNUNET_NAMESTORE_records_serialize(rd_count, rd, rd_ser_len, rd_ser);
1204 if (signature != NULL)
1205 contains_sig = GNUNET_YES;
1207 contains_sig = GNUNET_NO;
1211 msg_size = sizeof (struct ZoneToNameResponseMessage) + name_len + rd_ser_len + contains_sig * sizeof (struct GNUNET_CRYPTO_RsaSignature);
1212 ztnr_msg = GNUNET_malloc (msg_size);
1214 name_tmp = (char *) &ztnr_msg[1];
1215 rd_tmp = &name_tmp[name_len];
1216 sig_tmp = &rd_tmp[rd_ser_len];
1218 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "ZONE_TO_NAME_RESPONSE");
1219 ztnr_msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME_RESPONSE);
1220 ztnr_msg->gns_header.header.size = htons (msg_size);
1221 ztnr_msg->gns_header.r_id = htonl (ztn_ctx->rid);
1222 ztnr_msg->res = htons (res);
1223 ztnr_msg->rd_len = htons (rd_ser_len);
1224 ztnr_msg->rd_count = htons (rd_count);
1225 ztnr_msg->name_len = htons (name_len);
1226 ztnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
1227 if (zone_key != NULL)
1228 ztnr_msg->zone_key = *zone_key;
1230 memset (&ztnr_msg->zone_key, '\0', sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
1232 if ((name_len > 0) && (name != NULL))
1233 memcpy (name_tmp, name, name_len);
1235 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);
1236 if ((rd_ser_len > 0) && (rd_ser != NULL))
1237 memcpy (rd_tmp, rd_ser, rd_ser_len);
1238 if ((GNUNET_YES == contains_sig) && (signature != NULL))
1239 memcpy (sig_tmp, signature, contains_sig * sizeof (struct GNUNET_CRYPTO_RsaSignature));
1241 GNUNET_SERVER_notification_context_unicast (snc, ztn_ctx->nc->client, (const struct GNUNET_MessageHeader *) ztnr_msg, GNUNET_NO);
1242 GNUNET_free (ztnr_msg);
1243 GNUNET_free_non_null (rd_ser);
1247 static void handle_zone_to_name (void *cls,
1248 struct GNUNET_SERVER_Client * client,
1249 const struct GNUNET_MessageHeader * message)
1251 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_TO_NAME");
1252 struct GNUNET_NAMESTORE_Client *nc;
1253 struct ZoneToNameCtx ztn_ctx;
1254 size_t msg_size = 0;
1257 if (ntohs (message->size) != sizeof (struct ZoneToNameMessage))
1259 GNUNET_break_op (0);
1260 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1264 nc = client_lookup(client);
1267 GNUNET_break_op (0);
1268 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1272 struct ZoneToNameMessage *ztn_msg = (struct ZoneToNameMessage *) message;
1274 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
1276 GNUNET_break_op (0);
1277 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1281 rid = ntohl (ztn_msg->gns_header.r_id);
1286 char * z_tmp = strdup (GNUNET_h2s (&ztn_msg->zone));
1287 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up name for zone `%s' in zone `%s'\n",
1289 GNUNET_h2s (&ztn_msg->value_zone));
1290 GNUNET_free (z_tmp);
1292 GSN_database->zone_to_name (GSN_database->cls, &ztn_msg->zone, &ztn_msg->value_zone, &handle_zone_to_name_it, &ztn_ctx);
1294 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1297 struct ZoneIterationProcResult
1300 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded zone_key;
1303 struct GNUNET_CRYPTO_RsaSignature signature;
1304 struct GNUNET_TIME_Absolute expire;
1314 void zone_iteration_proc (void *cls,
1315 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
1316 struct GNUNET_TIME_Absolute expire,
1318 unsigned int rd_count,
1319 const struct GNUNET_NAMESTORE_RecordData *rd,
1320 const struct GNUNET_CRYPTO_RsaSignature *signature)
1322 struct GNUNET_NAMESTORE_ZoneIteration *zi = cls;
1323 struct GNUNET_NAMESTORE_Client *nc = zi->client;
1326 if ((zone_key == NULL) && (name == NULL))
1328 struct ZoneIterationResponseMessage zir_msg;
1329 if (zi->has_zone == GNUNET_YES)
1330 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No more results for zone `%s'\n", GNUNET_h2s(&zi->zone));
1332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No more results for all zones\n");
1334 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending empty `%s' message\n", "ZONE_ITERATION_RESPONSE");
1335 zir_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
1336 zir_msg.gns_header.header.size = htons (sizeof (struct ZoneIterationResponseMessage));
1337 zir_msg.gns_header.r_id = htonl(zi->request_id);
1338 zir_msg.expire = GNUNET_TIME_absolute_hton(GNUNET_TIME_absolute_get_zero());
1339 zir_msg.name_len = htons (0);
1340 zir_msg.reserved = htons (0);
1341 zir_msg.rd_count = htons (0);
1342 zir_msg.rd_len = htons (0);
1343 memset (&zir_msg.public_key, '\0', sizeof (zir_msg.public_key));
1344 memset (&zir_msg.signature, '\0', sizeof (zir_msg.signature));
1345 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &zir_msg, GNUNET_NO);
1347 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing zone iterator\n");
1348 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, zi);
1354 struct ZoneIterationResponseMessage *zir_msg;
1355 if (zi->has_zone == GNUNET_YES)
1356 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending name `%s' for iteration over zone `%s'\n",
1357 name, GNUNET_h2s(&zi->zone));
1358 if (zi->has_zone == GNUNET_NO)
1359 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending name `%s' for iteration over all zones\n",
1367 name_len = strlen (name) +1;
1369 rd_ser_len = GNUNET_NAMESTORE_records_get_size(rd_count, rd);
1370 char rd_ser[rd_ser_len];
1371 GNUNET_NAMESTORE_records_serialize(rd_count, rd, rd_ser_len, rd_ser);
1372 msg_size = sizeof (struct ZoneIterationResponseMessage) + name_len + rd_ser_len;
1373 zir_msg = GNUNET_malloc(msg_size);
1375 name_tmp = (char *) &zir_msg[1];
1376 rd_tmp = &name_tmp[name_len];
1378 zir_msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
1379 zir_msg->gns_header.header.size = htons (msg_size);
1380 zir_msg->gns_header.r_id = htonl(zi->request_id);
1381 zir_msg->expire = GNUNET_TIME_absolute_hton(expire);
1382 zir_msg->reserved = htons (0);
1383 zir_msg->name_len = htons (name_len);
1384 zir_msg->rd_count = htons (rd_count);
1385 zir_msg->rd_len = htons (rd_ser_len);
1386 zir_msg->signature = *signature;
1387 GNUNET_assert (NULL != zone_key);
1388 if (zone_key != NULL)
1389 zir_msg->public_key = *zone_key;
1390 memcpy (name_tmp, name, name_len);
1391 memcpy (rd_tmp, rd_ser, rd_ser_len);
1393 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending empty `%s' message with size %u\n", "ZONE_ITERATION_RESPONSE", msg_size);
1394 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) zir_msg, GNUNET_NO);
1395 GNUNET_free (zir_msg);
1399 static void handle_iteration_start (void *cls,
1400 struct GNUNET_SERVER_Client * client,
1401 const struct GNUNET_MessageHeader * message)
1403 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_START");
1405 struct ZoneIterationStartMessage * zis_msg = (struct ZoneIterationStartMessage *) message;
1406 struct GNUNET_NAMESTORE_Client *nc;
1407 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1410 nc = client_lookup(client);
1413 GNUNET_break_op (0);
1414 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1418 zi = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_ZoneIteration));
1419 zi->request_id = ntohl (zis_msg->gns_header.r_id);
1422 zi->zone = zis_msg->zone;
1424 GNUNET_HashCode dummy;
1425 GNUNET_HashCode *zone_tmp;
1426 memset (&dummy, '\0', sizeof (dummy));
1427 if (0 == memcmp (&dummy, &zis_msg->zone, sizeof (dummy)))
1429 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting to iterate over all zones\n");
1430 zi->has_zone = GNUNET_NO;
1435 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting to iterate over zone `%s'\n", GNUNET_h2s (&zis_msg->zone));
1436 zi->has_zone = GNUNET_YES;
1437 zone_tmp = &zis_msg->zone;
1440 GNUNET_CONTAINER_DLL_insert (nc->op_head, nc->op_tail, zi);
1442 res = GSN_database->iterate_records (GSN_database->cls, zone_tmp , NULL, zi->offset , &zone_iteration_proc, zi);
1443 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1446 static void handle_iteration_stop (void *cls,
1447 struct GNUNET_SERVER_Client * client,
1448 const struct GNUNET_MessageHeader * message)
1450 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_STOP");
1452 struct GNUNET_NAMESTORE_Client *nc;
1453 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1454 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
1457 nc = client_lookup(client);
1460 GNUNET_break_op (0);
1461 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1465 rid = ntohl (zis_msg->gns_header.r_id);
1466 for (zi = nc->op_head; zi != NULL; zi = zi->next)
1468 if (zi->request_id == rid)
1473 GNUNET_break_op (0);
1474 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1478 GNUNET_CONTAINER_DLL_remove(nc->op_head, nc->op_tail, zi);
1479 if (GNUNET_YES == zi->has_zone)
1480 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration for zone `%s'\n", GNUNET_h2s (&zi->zone));
1482 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration all zones\n");
1485 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1488 static void handle_iteration_next (void *cls,
1489 struct GNUNET_SERVER_Client * client,
1490 const struct GNUNET_MessageHeader * message)
1492 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_NEXT");
1494 struct GNUNET_NAMESTORE_Client *nc;
1495 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1496 GNUNET_HashCode *zone_tmp;
1497 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
1500 nc = client_lookup(client);
1503 GNUNET_break_op (0);
1504 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1508 rid = ntohl (zis_msg->gns_header.r_id);
1509 for (zi = nc->op_head; zi != NULL; zi = zi->next)
1511 if (zi->request_id == rid)
1516 GNUNET_break_op (0);
1517 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1521 if (GNUNET_YES == zi->has_zone)
1522 zone_tmp = &zi->zone;
1527 GSN_database->iterate_records (GSN_database->cls, zone_tmp, NULL, zi->offset , &zone_iteration_proc, zi);
1528 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1531 int zonekey_file_it (void *cls, const char *filename)
1534 if ((filename != NULL) && (NULL != strstr(filename, ".zone")))
1536 struct GNUNET_CRYPTO_RsaPrivateKey * privkey;
1537 struct GNUNET_NAMESTORE_CryptoContainer *c;
1538 privkey = GNUNET_CRYPTO_rsa_key_create_from_file(filename);
1539 if (privkey == NULL)
1542 c = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_CryptoContainer));
1543 c->pubkey = GNUNET_malloc(sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
1544 c->privkey = privkey;
1545 GNUNET_CRYPTO_rsa_key_get_public(privkey, c->pubkey);
1546 GNUNET_CRYPTO_hash(c->pubkey, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &c->zone);
1548 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found zonefile for zone `%s'\n", GNUNET_h2s (&c->zone));
1550 GNUNET_CONTAINER_multihashmap_put(zonekeys, &c->zone, c, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1558 * Process template requests.
1560 * @param cls closure
1561 * @param server the initialized server
1562 * @param cfg configuration to use
1565 run (void *cls, struct GNUNET_SERVER_Handle *server,
1566 const struct GNUNET_CONFIGURATION_Handle *cfg)
1570 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting namestore service\n");
1572 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
1573 {&handle_start, NULL,
1574 GNUNET_MESSAGE_TYPE_NAMESTORE_START, sizeof (struct StartMessage)},
1575 {&handle_lookup_name, NULL,
1576 GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME, 0},
1577 {&handle_record_put, NULL,
1578 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT, 0},
1579 {&handle_record_create, NULL,
1580 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE, 0},
1581 {&handle_record_remove, NULL,
1582 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE, 0},
1583 {&handle_zone_to_name, NULL,
1584 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME, 0},
1585 {&handle_iteration_start, NULL,
1586 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START, sizeof (struct ZoneIterationStartMessage)},
1587 {&handle_iteration_next, NULL,
1588 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT, 0},
1589 {&handle_iteration_stop, NULL,
1590 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP, 0},
1596 /* Load private keys from disk */
1598 GNUNET_CONFIGURATION_get_value_filename (cfg, "namestore", "zonefile_directory",
1599 &zonefile_directory))
1601 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("No directory to load zonefiles specified in configuration\n"));
1602 GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
1606 if (GNUNET_NO == GNUNET_DISK_file_test (zonefile_directory))
1608 if (GNUNET_SYSERR == GNUNET_DISK_directory_create (zonefile_directory))
1610 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Creating directory `%s' for zone files failed!\n"), zonefile_directory);
1611 GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
1614 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created directory `%s' for zone files\n", zonefile_directory);
1617 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Scanning directory `%s' for zone files\n", zonefile_directory);
1618 zonekeys = GNUNET_CONTAINER_multihashmap_create (10);
1619 GNUNET_DISK_directory_scan (zonefile_directory, zonekey_file_it, &counter);
1620 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u zone files\n", counter);
1622 /* Loading database plugin */
1624 GNUNET_CONFIGURATION_get_value_string (cfg, "namestore", "database",
1626 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No database backend configured\n");
1628 GNUNET_asprintf (&db_lib_name, "libgnunet_plugin_namestore_%s", database);
1629 GSN_database = GNUNET_PLUGIN_load (db_lib_name, (void *) GSN_cfg);
1630 GNUNET_free (database);
1631 if (GSN_database == NULL)
1633 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not load database backend `%s'\n",
1635 GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
1639 /* Configuring server handles */
1640 GNUNET_SERVER_add_handlers (server, handlers);
1641 snc = GNUNET_SERVER_notification_context_create (server, 16);
1642 GNUNET_SERVER_disconnect_notify (server,
1643 &client_disconnect_notification,
1646 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
1653 * The main function for the template service.
1655 * @param argc number of arguments from the command line
1656 * @param argv command line arguments
1657 * @return 0 ok, 1 on error
1660 main (int argc, char *const *argv)
1662 return (GNUNET_OK ==
1663 GNUNET_SERVICE_run (argc, argv, "namestore",
1664 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
1667 /* end of gnunet-service-namestore.c */