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;
365 struct GNUNET_NAMESTORE_CryptoContainer *cc;
366 struct GNUNET_CRYPTO_RsaSignature *signature_new = NULL;
367 const struct GNUNET_CRYPTO_RsaSignature *sig_to_use;
368 GNUNET_HashCode zone_key_hash;
375 int copied_elements = 0;
376 int contains_signature = 0;
380 name_len = strlen(name) + 1;
382 /* count records to copy */
385 if (lnc->record_type != 0)
387 /* special record type needed */
388 for (c = 0; c < rd_count; c ++)
389 if (rd[c].record_type == lnc->record_type)
390 copied_elements++; /* found matching record */
391 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u records with type %u for name `%s' in zone `%s'\n",
392 copied_elements, lnc->record_type, lnc->name, GNUNET_h2s(lnc->zone));
393 rd_selected = GNUNET_malloc (copied_elements * sizeof (struct GNUNET_NAMESTORE_RecordData));
395 for (c = 0; c < rd_count; c ++)
397 if (rd[c].record_type == lnc->record_type)
399 /* found matching record */
400 memcpy (&rd_selected[copied_elements], &rd[c], sizeof (struct GNUNET_NAMESTORE_RecordData));
407 copied_elements = rd_count;
408 rd_selected = (struct GNUNET_NAMESTORE_RecordData *) rd;
416 expire = GNUNET_TIME_UNIT_ZERO_ABS;
419 rd_ser_len = GNUNET_NAMESTORE_records_get_size(copied_elements, rd_selected);
420 char rd_ser[rd_ser_len];
421 GNUNET_NAMESTORE_records_serialize(copied_elements, rd_selected, rd_ser_len, rd_ser);
423 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u records for name `%s' in zone `%s'\n",
424 copied_elements, lnc->name, GNUNET_h2s(lnc->zone));
426 if ((copied_elements == rd_count) && (NULL != signature))
427 contains_signature = GNUNET_YES;
429 contains_signature = GNUNET_NO;
431 if ((NULL != zone_key) && (copied_elements == rd_count))
433 GNUNET_CRYPTO_hash(zone_key, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &zone_key_hash);
434 if (GNUNET_CONTAINER_multihashmap_contains(zonekeys, &zone_key_hash))
436 cc = GNUNET_CONTAINER_multihashmap_get(zonekeys, &zone_key_hash);
437 signature_new = GNUNET_NAMESTORE_create_signature(cc->privkey, name, rd_selected, copied_elements);
438 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating signature for name `%s' in zone `%s'\n",name, GNUNET_h2s(&zone_key_hash));
439 sig_to_use = signature_new;
440 contains_signature = GNUNET_YES;
445 sig_to_use = signature;
448 if (rd_selected != rd)
449 GNUNET_free (rd_selected);
451 r_size = sizeof (struct LookupNameResponseMessage) +
452 sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded) +
456 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "NAMESTORE_LOOKUP_NAME_RESPONSE");
457 lnr_msg = GNUNET_malloc (r_size);
458 lnr_msg->gns_header.header.type = ntohs (GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME_RESPONSE);
459 lnr_msg->gns_header.header.size = ntohs (r_size);
460 lnr_msg->gns_header.r_id = htonl (lnc->request_id);
461 lnr_msg->rd_count = htons (copied_elements);
462 lnr_msg->rd_len = htons (rd_ser_len);
463 lnr_msg->name_len = htons (name_len);
464 lnr_msg->contains_sig = htons (contains_signature);
465 lnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
467 if (zone_key != NULL)
468 lnr_msg->public_key = (*zone_key);
470 memset(&lnr_msg->public_key, '\0', sizeof (lnr_msg->public_key));
471 if (GNUNET_YES == contains_signature)
472 lnr_msg->signature = *sig_to_use;
474 memset (&lnr_msg->signature, '\0', sizeof (lnr_msg->signature));
477 name_tmp = (char *) &lnr_msg[1];
478 rd_tmp = &name_tmp[name_len];
480 memcpy (name_tmp, name, name_len);
481 memcpy (rd_tmp, rd_ser, rd_ser_len);
483 GNUNET_SERVER_notification_context_unicast (snc, lnc->nc->client, (const struct GNUNET_MessageHeader *) lnr_msg, GNUNET_NO);
484 GNUNET_free_non_null(signature_new);
485 GNUNET_free (lnr_msg);
488 static void handle_lookup_name (void *cls,
489 struct GNUNET_SERVER_Client * client,
490 const struct GNUNET_MessageHeader * message)
492 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_LOOKUP_NAME");
493 struct LookupNameContext lnc;
494 struct GNUNET_NAMESTORE_Client *nc;
500 if (ntohs (message->size) < sizeof (struct LookupNameMessage))
503 GNUNET_SERVER_receive_done (client, GNUNET_OK);
507 nc = client_lookup(client);
511 GNUNET_SERVER_receive_done (client, GNUNET_OK);
515 struct LookupNameMessage * ln_msg = (struct LookupNameMessage *) message;
516 rid = ntohl (ln_msg->gns_header.r_id);
517 name_len = ntohl (ln_msg->name_len);
518 type = ntohl (ln_msg->record_type);
520 if ((name_len == 0) || (name_len > 256))
523 GNUNET_SERVER_receive_done (client, GNUNET_OK);
527 name = (char *) &ln_msg[1];
528 if (name[name_len -1] != '\0')
531 GNUNET_SERVER_receive_done (client, GNUNET_OK);
536 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up all records for name `%s' in zone `%s'\n", name, GNUNET_h2s(&ln_msg->zone));
538 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));
540 /* do the actual lookup */
541 lnc.request_id = rid;
543 lnc.record_type = type;
545 lnc.zone = &ln_msg->zone;
546 GSN_database->iterate_records(GSN_database->cls, &ln_msg->zone, name, 0, &handle_lookup_name_it, &lnc);
548 GNUNET_SERVER_receive_done (client, GNUNET_OK);
551 static void handle_record_put (void *cls,
552 struct GNUNET_SERVER_Client * client,
553 const struct GNUNET_MessageHeader * message)
555 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_PUT");
556 struct GNUNET_NAMESTORE_Client *nc;
557 struct GNUNET_TIME_Absolute expire;
558 struct GNUNET_CRYPTO_RsaSignature *signature;
559 struct RecordPutResponseMessage rpr_msg;
568 int res = GNUNET_SYSERR;
570 if (ntohs (message->size) < sizeof (struct RecordPutMessage))
573 GNUNET_SERVER_receive_done (client, GNUNET_OK);
577 nc = client_lookup (client);
581 GNUNET_SERVER_receive_done (client, GNUNET_OK);
585 struct RecordPutMessage * rp_msg = (struct RecordPutMessage *) message;
587 rid = ntohl (rp_msg->gns_header.r_id);
588 msg_size = ntohs (rp_msg->gns_header.header.size);
589 name_len = ntohs (rp_msg->name_len);
590 rd_count = ntohs (rp_msg->rd_count);
591 rd_ser_len = ntohs(rp_msg->rd_len);
593 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
596 GNUNET_SERVER_receive_done (client, GNUNET_OK);
600 if ((rd_count < 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
603 GNUNET_SERVER_receive_done (client, GNUNET_OK);
607 msg_size_exp = sizeof (struct RecordPutMessage) + name_len + rd_ser_len;
608 if (msg_size != msg_size_exp)
610 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
612 GNUNET_SERVER_receive_done (client, GNUNET_OK);
615 if ((name_len == 0) || (name_len > 256))
618 GNUNET_SERVER_receive_done (client, GNUNET_OK);
622 name = (char *) &rp_msg[1];
624 if (name[name_len -1] != '\0')
627 GNUNET_SERVER_receive_done (client, GNUNET_OK);
631 expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
632 signature = (struct GNUNET_CRYPTO_RsaSignature *) &rp_msg->signature;
634 rd_ser = &name[name_len];
635 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
636 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
637 if (res != GNUNET_OK)
643 GNUNET_HashCode zone_hash;
644 GNUNET_CRYPTO_hash (&rp_msg->public_key, sizeof (rp_msg->public_key), &zone_hash);
646 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting %u record for name `%s' in zone `%s'\n", rd_count, name, GNUNET_h2s(&zone_hash));
648 /* Database operation */
649 res = GSN_database->put_records(GSN_database->cls,
656 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Putting record for name `%s': %s\n",
657 name, (res == GNUNET_OK) ? "OK" : "FAIL");
661 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_PUT_RESPONSE");
662 rpr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT_RESPONSE);
663 rpr_msg.gns_header.header.size = htons (sizeof (struct RecordPutResponseMessage));
664 rpr_msg.gns_header.r_id = htonl (rid);
665 rpr_msg.op_result = htonl (res);
666 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rpr_msg, GNUNET_NO);
668 GNUNET_SERVER_receive_done (client, GNUNET_OK);
671 struct CreateRecordContext
673 struct GNUNET_NAMESTORE_RecordData *rd;
674 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
675 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey;
676 struct GNUNET_TIME_Absolute expire;
683 handle_create_record_it (void *cls,
684 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pubkey,
685 struct GNUNET_TIME_Absolute expire,
687 unsigned int rd_count,
688 const struct GNUNET_NAMESTORE_RecordData *rd,
689 const struct GNUNET_CRYPTO_RsaSignature *signature)
691 struct CreateRecordContext * crc = cls;
692 struct GNUNET_NAMESTORE_RecordData *rd_new = NULL;
693 struct GNUNET_CRYPTO_RsaSignature dummy_signature;
694 struct GNUNET_TIME_Absolute block_expiration;
696 int exist = GNUNET_SYSERR;
697 int update = GNUNET_NO;
699 int rd_count_new = 0;
701 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u existing records for `%s'\n", rd_count, crc->name);
703 for (c = 0; c < rd_count; c++)
706 if ((crc->rd->record_type == rd[c].record_type) &&
707 (crc->rd->data_size == rd[c].data_size) &&
708 (0 == memcmp (crc->rd->data, rd[c].data, rd[c].data_size)))
710 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found existing records for `%s' to update expiration date!\n", crc->name);
712 if (crc->rd->expiration.abs_value != rd[c].expiration.abs_value)
718 if (exist == GNUNET_SYSERR)
719 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "NO existing records for `%s' to update!\n", crc->name);
721 if (exist == GNUNET_SYSERR)
723 rd_new = GNUNET_malloc ((rd_count+1) * sizeof (struct GNUNET_NAMESTORE_RecordData));
724 memcpy (rd_new, rd, rd_count * sizeof (struct GNUNET_NAMESTORE_RecordData));
725 rd_count_new = rd_count + 1;
726 rd_new[rd_count] = *(crc->rd);
728 else if (update == GNUNET_NO)
730 /* Exact same record already exists */
731 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No update for %s' record required!\n", crc->name);
735 else if (update == GNUNET_YES)
738 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating existing records for `%s'!\n", crc->name);
739 rd_new = GNUNET_malloc ((rd_count) * sizeof (struct GNUNET_NAMESTORE_RecordData));
740 memcpy (rd_new, rd, rd_count * sizeof (struct GNUNET_NAMESTORE_RecordData));
741 rd_count_new = rd_count;
742 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating expiration from %llu to %llu!\n", rd_new[exist].expiration.abs_value, crc->rd->expiration.abs_value);
743 rd_new[exist].expiration = crc->rd->expiration;
746 block_expiration = GNUNET_TIME_absolute_max(crc->expire, expire);
747 if (block_expiration.abs_value != expire.abs_value)
748 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updated block expiration time\n");
750 memset (&dummy_signature, '\0', sizeof (dummy_signature));
752 /* Database operation */
753 GNUNET_assert ((rd_new != NULL) && (rd_count_new > 0));
754 res = GSN_database->put_records(GSN_database->cls,
755 (const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *) crc->pubkey,
758 rd_count_new, rd_new,
760 GNUNET_break (GNUNET_OK == res);
761 if (res == GNUNET_OK)
762 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully put record for `%s' in database \n", crc->name);
764 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to put record for `%s' in database \n", crc->name);
768 GNUNET_free_non_null (rd_new);
772 /* failed to create the record */
773 crc->res = GNUNET_SYSERR;
776 /* database operations OK */
777 if (GNUNET_YES == update)
778 /* we updated an existing record */
779 crc->res = GNUNET_NO;
781 /* we created a new record */
782 crc->res = GNUNET_YES;
785 /* identical entry existed, so we did nothing */
786 crc->res = GNUNET_NO;
792 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Update result for name `%s' %u\n", crc->name, res);
796 static void handle_record_create (void *cls,
797 struct GNUNET_SERVER_Client * client,
798 const struct GNUNET_MessageHeader * message)
800 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_CREATE");
801 struct GNUNET_NAMESTORE_Client *nc;
802 struct CreateRecordContext crc;
803 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
804 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
805 struct RecordCreateResponseMessage rcr_msg;
806 GNUNET_HashCode pubkey_hash;
818 int res = GNUNET_SYSERR;
819 crc.res = GNUNET_SYSERR;
821 if (ntohs (message->size) < sizeof (struct RecordCreateMessage))
824 GNUNET_SERVER_receive_done (client, GNUNET_OK);
828 nc = client_lookup(client);
832 GNUNET_SERVER_receive_done (client, GNUNET_OK);
836 struct RecordCreateMessage * rp_msg = (struct RecordCreateMessage *) message;
837 rid = ntohl (rp_msg->gns_header.r_id);
838 name_len = ntohs (rp_msg->name_len);
839 msg_size = ntohs (message->size);
840 rd_count = ntohs (rp_msg->rd_count);
841 rd_ser_len = ntohs (rp_msg->rd_len);
842 key_len = ntohs (rp_msg->pkey_len);
843 msg_size_exp = sizeof (struct RecordCreateMessage) + key_len + name_len + rd_ser_len;
845 if (msg_size != msg_size_exp)
847 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
849 GNUNET_SERVER_receive_done (client, GNUNET_OK);
853 if ((name_len == 0) || (name_len > 256))
856 GNUNET_SERVER_receive_done (client, GNUNET_OK);
860 pkey_tmp = (char *) &rp_msg[1];
861 name_tmp = &pkey_tmp[key_len];
862 rd_ser = &name_tmp[name_len];
864 if (name_tmp[name_len -1] != '\0')
867 GNUNET_SERVER_receive_done (client, GNUNET_OK);
871 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
873 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
874 if ((res != GNUNET_OK) || (rd_count != 1))
880 /* Extracting and converting private key */
881 pkey = GNUNET_CRYPTO_rsa_decode_key((char *) pkey_tmp, key_len);
882 GNUNET_assert (pkey != NULL);
883 GNUNET_CRYPTO_rsa_key_get_public(pkey, &pub);
884 GNUNET_CRYPTO_hash (&pub, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &pubkey_hash);
886 crc.expire = GNUNET_TIME_absolute_ntoh(rp_msg->expire);
887 crc.res = GNUNET_SYSERR;
893 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating record for name `%s' in zone `%s'\n", name_tmp, GNUNET_h2s(&pubkey_hash));
895 /* Get existing records for name */
896 res = GSN_database->iterate_records(GSN_database->cls, &pubkey_hash, name_tmp, 0, &handle_create_record_it, &crc);
897 if (res != GNUNET_SYSERR)
899 GNUNET_CRYPTO_rsa_key_free(pkey);
903 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_CREATE_RESPONSE");
904 rcr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE_RESPONSE);
905 rcr_msg.gns_header.header.size = htons (sizeof (struct RecordCreateResponseMessage));
906 rcr_msg.gns_header.r_id = htonl (rid);
907 if ((GNUNET_OK == res) && (crc.res == GNUNET_YES))
908 rcr_msg.op_result = htonl (GNUNET_YES);
909 else if ((GNUNET_OK == res) && (crc.res == GNUNET_NO))
910 rcr_msg.op_result = htonl (GNUNET_NO);
912 rcr_msg.op_result = htonl (GNUNET_SYSERR);
913 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rcr_msg, GNUNET_NO);
915 GNUNET_SERVER_receive_done (client, GNUNET_OK);
919 struct RemoveRecordContext
921 struct GNUNET_NAMESTORE_RecordData *rd;
922 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
927 handle_record_remove_it (void *cls,
928 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
929 struct GNUNET_TIME_Absolute expire,
931 unsigned int rd_count,
932 const struct GNUNET_NAMESTORE_RecordData *rd,
933 const struct GNUNET_CRYPTO_RsaSignature *signature)
935 struct RemoveRecordContext *rrc = cls;
939 unsigned int rd_count_new;
941 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name `%s 'currently has %u records\n", name, rd_count);
945 /* Could not find record to remove */
950 /* Find record to remove */
951 found = GNUNET_SYSERR;
952 for (c = 0; c < rd_count; c++)
954 if ((rd[c].expiration.abs_value == rrc->rd->expiration.abs_value) &&
955 (rd[c].flags == rrc->rd->flags) &&
956 (rd[c].record_type == rrc->rd->record_type) &&
957 (rd[c].data_size == rrc->rd->data_size) &&
958 (0 == memcmp (rd[c].data, rrc->rd->data, rrc->rd->data_size)))
960 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found record to remove!\n", rd_count);
965 if (GNUNET_SYSERR == found)
967 /* Could not find record to remove */
972 rd_count_new = rd_count -1;
973 struct GNUNET_NAMESTORE_RecordData rd_new[rd_count_new];
976 for (c = 0; c < rd_count; c++)
980 GNUNET_assert (c2 < rd_count_new);
986 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Name `%s' now has %u records\n", name, rd_count_new);
988 /* Create dummy signature */
989 struct GNUNET_CRYPTO_RsaSignature dummy_signature;
990 memset (&dummy_signature, '\0', sizeof (dummy_signature));
994 res = GSN_database->put_records(GSN_database->cls,
998 rd_count_new, rd_new,
1000 if (GNUNET_OK != res)
1002 /* Could put records into database */
1010 static void handle_record_remove (void *cls,
1011 struct GNUNET_SERVER_Client * client,
1012 const struct GNUNET_MessageHeader * message)
1014 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "NAMESTORE_RECORD_REMOVE");
1015 struct GNUNET_NAMESTORE_Client *nc;
1016 struct RecordRemoveResponseMessage rrr_msg;
1017 struct GNUNET_CRYPTO_RsaPrivateKey *pkey;
1018 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
1019 GNUNET_HashCode pubkey_hash;
1020 char * pkey_tmp = NULL;
1021 char * name_tmp = NULL;
1022 char * rd_ser = NULL;
1024 size_t name_len = 0;
1025 size_t rd_ser_len = 0;
1026 size_t msg_size = 0;
1027 size_t msg_size_exp = 0;
1031 int res = GNUNET_SYSERR;
1033 if (ntohs (message->size) < sizeof (struct RecordRemoveMessage))
1035 GNUNET_break_op (0);
1036 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1040 nc = client_lookup(client);
1043 GNUNET_break_op (0);
1044 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1048 struct RecordRemoveMessage * rr_msg = (struct RecordRemoveMessage *) message;
1049 rid = ntohl (rr_msg->gns_header.r_id);
1050 name_len = ntohs (rr_msg->name_len);
1051 rd_ser_len = ntohs (rr_msg->rd_len);
1052 rd_count = ntohs (rr_msg->rd_count);
1053 key_len = ntohs (rr_msg->pkey_len);
1054 msg_size = ntohs (message->size);
1056 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
1058 GNUNET_break_op (0);
1059 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1063 if ((rd_count != 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
1065 GNUNET_break_op (0);
1066 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1070 msg_size_exp = sizeof (struct RecordRemoveMessage) + key_len + name_len + rd_ser_len;
1071 if (msg_size != msg_size_exp)
1073 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Expected message %u size but message size is %u \n", msg_size_exp, msg_size);
1074 GNUNET_break_op (0);
1075 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1079 if ((rd_count != 1) || (rd_ser_len < 1) || (name_len >=256) || (name_len == 0))
1081 GNUNET_break_op (0);
1082 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1086 pkey_tmp = (char *) &rr_msg[1];
1087 name_tmp = &pkey_tmp[key_len];
1088 rd_ser = &name_tmp[name_len];
1091 if ((name_len == 0) || (name_len > 256))
1093 GNUNET_break_op (0);
1094 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1098 if (name_tmp[name_len -1] != '\0')
1100 GNUNET_break_op (0);
1101 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1105 /* Extracting and converting private key */
1106 pkey = GNUNET_CRYPTO_rsa_decode_key((char *) pkey_tmp, key_len);
1107 GNUNET_assert (pkey != NULL);
1108 GNUNET_CRYPTO_rsa_key_get_public(pkey, &pub);
1109 GNUNET_CRYPTO_hash (&pub, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &pubkey_hash);
1111 struct GNUNET_NAMESTORE_RecordData rd[rd_count];
1112 res = GNUNET_NAMESTORE_records_deserialize(rd_ser_len, rd_ser, rd_count, rd);
1113 if ((res != GNUNET_OK) || (rd_count != 1))
1115 GNUNET_break_op (0);
1119 struct RemoveRecordContext rrc;
1123 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing record for name `%s' in zone `%s'\n", name_tmp, GNUNET_h2s(&pubkey_hash));
1125 /* Database operation */
1126 res = GSN_database->iterate_records (GSN_database->cls,
1130 handle_record_remove_it, &rrc);
1132 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing record for name `%s': %s\n",
1133 name_tmp, (rrc.op_res == 0) ? "OK" : "FAIL");
1138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "RECORD_REMOVE_RESPONSE");
1139 rrr_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE_RESPONSE);
1140 rrr_msg.gns_header.header.size = htons (sizeof (struct RecordRemoveResponseMessage));
1141 rrr_msg.gns_header.r_id = htonl (rid);
1142 rrr_msg.op_result = htonl (res);
1143 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &rrr_msg, GNUNET_NO);
1145 GNUNET_CRYPTO_rsa_key_free (pkey);
1147 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1151 struct ZoneToNameCtx
1153 struct GNUNET_NAMESTORE_Client *nc;
1158 handle_zone_to_name_it (void *cls,
1159 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
1160 struct GNUNET_TIME_Absolute expire,
1162 unsigned int rd_count,
1163 const struct GNUNET_NAMESTORE_RecordData *rd,
1164 const struct GNUNET_CRYPTO_RsaSignature *signature)
1166 struct ZoneToNameCtx * ztn_ctx = cls;
1167 struct ZoneToNameResponseMessage *ztnr_msg;
1168 int16_t res = GNUNET_SYSERR;
1169 uint16_t name_len = 0;
1170 uint16_t rd_ser_len = 0 ;
1171 int32_t contains_sig = 0;
1172 size_t msg_size = 0;
1174 char *rd_ser = NULL;
1179 if ((zone_key != NULL) && (name != NULL))
1182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found results: name is `%s', has %u records\n", name, rd_count);
1184 name_len = strlen (name);
1188 /* no result found */
1189 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found no results\n");
1196 rd_ser_len = GNUNET_NAMESTORE_records_get_size (rd_count, rd);
1197 rd_ser = GNUNET_malloc (rd_ser_len);
1198 GNUNET_NAMESTORE_records_serialize(rd_count, rd, rd_ser_len, rd_ser);
1203 if (signature != NULL)
1204 contains_sig = GNUNET_YES;
1206 contains_sig = GNUNET_NO;
1210 msg_size = sizeof (struct ZoneToNameResponseMessage) + name_len + rd_ser_len + contains_sig * sizeof (struct GNUNET_CRYPTO_RsaSignature);
1211 ztnr_msg = GNUNET_malloc (msg_size);
1213 name_tmp = (char *) &ztnr_msg[1];
1214 rd_tmp = &name_tmp[name_len];
1215 sig_tmp = &rd_tmp[rd_ser_len];
1217 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message\n", "ZONE_TO_NAME_RESPONSE");
1218 ztnr_msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME_RESPONSE);
1219 ztnr_msg->gns_header.header.size = htons (msg_size);
1220 ztnr_msg->gns_header.r_id = htonl (ztn_ctx->rid);
1221 ztnr_msg->res = htons (res);
1222 ztnr_msg->rd_len = htons (rd_ser_len);
1223 ztnr_msg->rd_count = htons (rd_count);
1224 ztnr_msg->name_len = htons (name_len);
1225 ztnr_msg->expire = GNUNET_TIME_absolute_hton(expire);
1226 if (zone_key != NULL)
1227 ztnr_msg->zone_key = *zone_key;
1229 memset (&ztnr_msg->zone_key, '\0', sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
1231 if ((name_len > 0) && (name != NULL))
1232 memcpy (name_tmp, name, name_len);
1234 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);
1235 if ((rd_ser_len > 0) && (rd_ser != NULL))
1236 memcpy (rd_tmp, rd_ser, rd_ser_len);
1237 if ((GNUNET_YES == contains_sig) && (signature != NULL))
1238 memcpy (sig_tmp, signature, contains_sig * sizeof (struct GNUNET_CRYPTO_RsaSignature));
1240 GNUNET_SERVER_notification_context_unicast (snc, ztn_ctx->nc->client, (const struct GNUNET_MessageHeader *) ztnr_msg, GNUNET_NO);
1241 GNUNET_free (ztnr_msg);
1242 GNUNET_free_non_null (rd_ser);
1246 static void handle_zone_to_name (void *cls,
1247 struct GNUNET_SERVER_Client * client,
1248 const struct GNUNET_MessageHeader * message)
1250 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_TO_NAME");
1251 struct GNUNET_NAMESTORE_Client *nc;
1252 struct ZoneToNameCtx ztn_ctx;
1253 size_t msg_size = 0;
1256 if (ntohs (message->size) != sizeof (struct ZoneToNameMessage))
1258 GNUNET_break_op (0);
1259 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1263 nc = client_lookup(client);
1266 GNUNET_break_op (0);
1267 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1271 struct ZoneToNameMessage *ztn_msg = (struct ZoneToNameMessage *) message;
1273 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
1275 GNUNET_break_op (0);
1276 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1280 rid = ntohl (ztn_msg->gns_header.r_id);
1285 char * z_tmp = strdup (GNUNET_h2s (&ztn_msg->zone));
1286 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking up name for zone `%s' in zone `%s'\n",
1288 GNUNET_h2s (&ztn_msg->value_zone));
1289 GNUNET_free (z_tmp);
1291 GSN_database->zone_to_name (GSN_database->cls, &ztn_msg->zone, &ztn_msg->value_zone, &handle_zone_to_name_it, &ztn_ctx);
1293 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1296 struct ZoneIterationProcResult
1299 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded zone_key;
1302 struct GNUNET_CRYPTO_RsaSignature signature;
1303 struct GNUNET_TIME_Absolute expire;
1313 void zone_iteration_proc (void *cls,
1314 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
1315 struct GNUNET_TIME_Absolute expire,
1317 unsigned int rd_count,
1318 const struct GNUNET_NAMESTORE_RecordData *rd,
1319 const struct GNUNET_CRYPTO_RsaSignature *signature)
1321 struct GNUNET_NAMESTORE_ZoneIteration *zi = cls;
1322 struct GNUNET_NAMESTORE_Client *nc = zi->client;
1325 if ((zone_key == NULL) && (name == NULL))
1327 struct ZoneIterationResponseMessage zir_msg;
1328 if (zi->has_zone == GNUNET_YES)
1329 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No more results for zone `%s'\n", GNUNET_h2s(&zi->zone));
1331 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No more results for all zones\n");
1333 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending empty `%s' message\n", "ZONE_ITERATION_RESPONSE");
1334 zir_msg.gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
1335 zir_msg.gns_header.header.size = htons (sizeof (struct ZoneIterationResponseMessage));
1336 zir_msg.gns_header.r_id = htonl(zi->request_id);
1337 zir_msg.expire = GNUNET_TIME_absolute_hton(GNUNET_TIME_absolute_get_zero());
1338 zir_msg.name_len = htons (0);
1339 zir_msg.reserved = htons (0);
1340 zir_msg.rd_count = htons (0);
1341 zir_msg.rd_len = htons (0);
1342 memset (&zir_msg.public_key, '\0', sizeof (zir_msg.public_key));
1343 memset (&zir_msg.signature, '\0', sizeof (zir_msg.signature));
1344 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) &zir_msg, GNUNET_NO);
1346 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing zone iterator\n");
1347 GNUNET_CONTAINER_DLL_remove (nc->op_head, nc->op_tail, zi);
1353 struct ZoneIterationResponseMessage *zir_msg;
1354 if (zi->has_zone == GNUNET_YES)
1355 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending name `%s' for iteration over zone `%s'\n",
1356 name, GNUNET_h2s(&zi->zone));
1357 if (zi->has_zone == GNUNET_NO)
1358 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending name `%s' for iteration over all zones\n",
1366 name_len = strlen (name) +1;
1368 rd_ser_len = GNUNET_NAMESTORE_records_get_size(rd_count, rd);
1369 char rd_ser[rd_ser_len];
1370 GNUNET_NAMESTORE_records_serialize(rd_count, rd, rd_ser_len, rd_ser);
1371 msg_size = sizeof (struct ZoneIterationResponseMessage) + name_len + rd_ser_len;
1372 zir_msg = GNUNET_malloc(msg_size);
1374 name_tmp = (char *) &zir_msg[1];
1375 rd_tmp = &name_tmp[name_len];
1377 zir_msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE);
1378 zir_msg->gns_header.header.size = htons (msg_size);
1379 zir_msg->gns_header.r_id = htonl(zi->request_id);
1380 zir_msg->expire = GNUNET_TIME_absolute_hton(expire);
1381 zir_msg->reserved = htons (0);
1382 zir_msg->name_len = htons (name_len);
1383 zir_msg->rd_count = htons (rd_count);
1384 zir_msg->rd_len = htons (rd_ser_len);
1385 zir_msg->signature = *signature;
1386 GNUNET_assert (NULL != zone_key);
1387 if (zone_key != NULL)
1388 zir_msg->public_key = *zone_key;
1389 memcpy (name_tmp, name, name_len);
1390 memcpy (rd_tmp, rd_ser, rd_ser_len);
1392 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending empty `%s' message with size %u\n", "ZONE_ITERATION_RESPONSE", msg_size);
1393 GNUNET_SERVER_notification_context_unicast (snc, nc->client, (const struct GNUNET_MessageHeader *) zir_msg, GNUNET_NO);
1394 GNUNET_free (zir_msg);
1398 static void handle_iteration_start (void *cls,
1399 struct GNUNET_SERVER_Client * client,
1400 const struct GNUNET_MessageHeader * message)
1402 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_START");
1404 struct ZoneIterationStartMessage * zis_msg = (struct ZoneIterationStartMessage *) message;
1405 struct GNUNET_NAMESTORE_Client *nc;
1406 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1409 nc = client_lookup(client);
1412 GNUNET_break_op (0);
1413 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1417 zi = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_ZoneIteration));
1418 zi->request_id = ntohl (zis_msg->gns_header.r_id);
1421 zi->zone = zis_msg->zone;
1423 GNUNET_HashCode dummy;
1424 GNUNET_HashCode *zone_tmp;
1425 memset (&dummy, '\0', sizeof (dummy));
1426 if (0 == memcmp (&dummy, &zis_msg->zone, sizeof (dummy)))
1428 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting to iterate over all zones\n");
1429 zi->has_zone = GNUNET_NO;
1434 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting to iterate over zone `%s'\n", GNUNET_h2s (&zis_msg->zone));
1435 zi->has_zone = GNUNET_YES;
1436 zone_tmp = &zis_msg->zone;
1439 GNUNET_CONTAINER_DLL_insert (nc->op_head, nc->op_tail, zi);
1441 res = GSN_database->iterate_records (GSN_database->cls, zone_tmp , NULL, zi->offset , &zone_iteration_proc, zi);
1442 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1445 static void handle_iteration_stop (void *cls,
1446 struct GNUNET_SERVER_Client * client,
1447 const struct GNUNET_MessageHeader * message)
1449 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_STOP");
1451 struct GNUNET_NAMESTORE_Client *nc;
1452 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1453 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
1456 nc = client_lookup(client);
1459 GNUNET_break_op (0);
1460 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1464 rid = ntohl (zis_msg->gns_header.r_id);
1465 for (zi = nc->op_head; zi != NULL; zi = zi->next)
1467 if (zi->request_id == rid)
1472 GNUNET_break_op (0);
1473 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1477 GNUNET_CONTAINER_DLL_remove(nc->op_head, nc->op_tail, zi);
1478 if (GNUNET_YES == zi->has_zone)
1479 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration for zone `%s'\n", GNUNET_h2s (&zi->zone));
1481 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopped zone iteration all zones\n");
1484 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1487 static void handle_iteration_next (void *cls,
1488 struct GNUNET_SERVER_Client * client,
1489 const struct GNUNET_MessageHeader * message)
1491 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ZONE_ITERATION_NEXT");
1493 struct GNUNET_NAMESTORE_Client *nc;
1494 struct GNUNET_NAMESTORE_ZoneIteration *zi;
1495 GNUNET_HashCode *zone_tmp;
1496 struct ZoneIterationStopMessage * zis_msg = (struct ZoneIterationStopMessage *) message;
1499 nc = client_lookup(client);
1502 GNUNET_break_op (0);
1503 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1507 rid = ntohl (zis_msg->gns_header.r_id);
1508 for (zi = nc->op_head; zi != NULL; zi = zi->next)
1510 if (zi->request_id == rid)
1515 GNUNET_break_op (0);
1516 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1520 if (GNUNET_YES == zi->has_zone)
1521 zone_tmp = &zi->zone;
1526 GSN_database->iterate_records (GSN_database->cls, zone_tmp, NULL, zi->offset , &zone_iteration_proc, zi);
1527 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1530 int zonekey_file_it (void *cls, const char *filename)
1533 if ((filename != NULL) && (NULL != strstr(filename, ".zone")))
1535 struct GNUNET_CRYPTO_RsaPrivateKey * privkey;
1536 struct GNUNET_NAMESTORE_CryptoContainer *c;
1537 privkey = GNUNET_CRYPTO_rsa_key_create_from_file(filename);
1538 if (privkey == NULL)
1541 c = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_CryptoContainer));
1542 c->pubkey = GNUNET_malloc(sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
1543 c->privkey = privkey;
1544 GNUNET_CRYPTO_rsa_key_get_public(privkey, c->pubkey);
1545 GNUNET_CRYPTO_hash(c->pubkey, sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded), &c->zone);
1547 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found zonefile for zone `%s'\n", GNUNET_h2s (&c->zone));
1549 GNUNET_CONTAINER_multihashmap_put(zonekeys, &c->zone, c, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1557 * Process template requests.
1559 * @param cls closure
1560 * @param server the initialized server
1561 * @param cfg configuration to use
1564 run (void *cls, struct GNUNET_SERVER_Handle *server,
1565 const struct GNUNET_CONFIGURATION_Handle *cfg)
1569 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting namestore service\n");
1571 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
1572 {&handle_start, NULL,
1573 GNUNET_MESSAGE_TYPE_NAMESTORE_START, sizeof (struct StartMessage)},
1574 {&handle_lookup_name, NULL,
1575 GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME, 0},
1576 {&handle_record_put, NULL,
1577 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT, 0},
1578 {&handle_record_create, NULL,
1579 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE, 0},
1580 {&handle_record_remove, NULL,
1581 GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE, 0},
1582 {&handle_zone_to_name, NULL,
1583 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME, 0},
1584 {&handle_iteration_start, NULL,
1585 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START, sizeof (struct ZoneIterationStartMessage)},
1586 {&handle_iteration_next, NULL,
1587 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT, 0},
1588 {&handle_iteration_stop, NULL,
1589 GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP, 0},
1595 /* Load private keys from disk */
1597 GNUNET_CONFIGURATION_get_value_filename (cfg, "namestore", "zonefile_directory",
1598 &zonefile_directory))
1600 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("No directory to load zonefiles specified in configuration\n"));
1601 GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
1605 if (GNUNET_NO == GNUNET_DISK_file_test (zonefile_directory))
1607 if (GNUNET_SYSERR == GNUNET_DISK_directory_create (zonefile_directory))
1609 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Creating directory `%s' for zone files failed!\n"), zonefile_directory);
1610 GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
1613 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created directory `%s' for zone files\n", zonefile_directory);
1616 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Scanning directory `%s' for zone files\n", zonefile_directory);
1617 zonekeys = GNUNET_CONTAINER_multihashmap_create (10);
1618 GNUNET_DISK_directory_scan (zonefile_directory, zonekey_file_it, &counter);
1619 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u zone files\n", counter);
1621 /* Loading database plugin */
1623 GNUNET_CONFIGURATION_get_value_string (cfg, "namestore", "database",
1625 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No database backend configured\n");
1627 GNUNET_asprintf (&db_lib_name, "libgnunet_plugin_namestore_%s", database);
1628 GSN_database = GNUNET_PLUGIN_load (db_lib_name, (void *) GSN_cfg);
1629 GNUNET_free (database);
1630 if (GSN_database == NULL)
1632 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not load database backend `%s'\n",
1634 GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
1638 /* Configuring server handles */
1639 GNUNET_SERVER_add_handlers (server, handlers);
1640 snc = GNUNET_SERVER_notification_context_create (server, 16);
1641 GNUNET_SERVER_disconnect_notify (server,
1642 &client_disconnect_notification,
1645 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
1652 * The main function for the template service.
1654 * @param argc number of arguments from the command line
1655 * @param argv command line arguments
1656 * @return 0 ok, 1 on error
1659 main (int argc, char *const *argv)
1661 return (GNUNET_OK ==
1662 GNUNET_SERVICE_run (argc, argv, "namestore",
1663 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
1666 /* end of gnunet-service-namestore.c */