2 This file is part of GNUnet.
3 (C) 2009, 2010, 2011 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.
23 * @file gns/gnunet-service-gns.c
24 * @brief GNUnet GNS service
25 * @author Martin Schanzenbach
28 #include "gnunet_util_lib.h"
29 #include "gnunet_transport_service.h"
30 #include "gnunet_dns_service.h"
31 #include "gnunet_dnsparser_lib.h"
32 #include "gnunet_dht_service.h"
33 #include "gnunet_namestore_service.h"
34 #include "gnunet_gns_service.h"
35 #include "block_gns.h"
37 #include "gnunet-service-gns_resolver.h"
38 #include "gnunet-service-gns_interceptor.h"
40 /* FIXME move to proper header in include */
41 #define GNUNET_MESSAGE_TYPE_GNS_LOOKUP 23
42 #define GNUNET_MESSAGE_TYPE_GNS_LOOKUP_RESULT 24
43 #define GNUNET_MESSAGE_TYPE_GNS_SHORTEN 25
44 #define GNUNET_MESSAGE_TYPE_GNS_SHORTEN_RESULT 26
45 #define GNUNET_MESSAGE_TYPE_GNS_GET_AUTH 27
46 #define GNUNET_MESSAGE_TYPE_GNS_GET_AUTH_RESULT 28
50 * Handle to a shorten operation from api
52 struct ClientShortenHandle
54 /* the requesting client that */
55 struct GNUNET_SERVER_Client *client;
61 enum GNUNET_GNS_RecordType type;
70 * Handle to a get auhtority operation from api
72 struct ClientGetAuthHandle
74 /* the requesting client that */
75 struct GNUNET_SERVER_Client *client;
80 /* name to lookup authority */
87 * Handle to a lookup operation from api
89 struct ClientLookupHandle
91 /* the requesting client that */
92 struct GNUNET_SERVER_Client *client;
98 enum GNUNET_GNS_RecordType type;
100 /* the name to look up */
101 char* name; //Needed?
105 * Our handle to the DHT
107 static struct GNUNET_DHT_Handle *dht_handle;
110 * Our zone's private key
112 struct GNUNET_CRYPTO_RsaPrivateKey *zone_key;
115 * Our handle to the namestore service
116 * FIXME maybe need a second handle for iteration
118 struct GNUNET_NAMESTORE_Handle *namestore_handle;
121 * Handle to iterate over our authoritative zone in namestore
123 struct GNUNET_NAMESTORE_ZoneIterator *namestore_iter;
126 * The configuration the GNS service is running with
128 const struct GNUNET_CONFIGURATION_Handle *GNS_cfg;
131 * Our notification context.
133 static struct GNUNET_SERVER_NotificationContext *nc;
138 struct GNUNET_CRYPTO_ShortHashCode zone_hash;
141 * Useful for zone update for DHT put
143 static int num_public_records = 0;
146 * update interval in seconds
148 static unsigned long long int max_record_put_interval;
150 static unsigned long long int dht_max_update_interval;
152 /* dht update interval FIXME define? */
153 static struct GNUNET_TIME_Relative record_put_interval;
155 /* zone update task */
156 GNUNET_SCHEDULER_TaskIdentifier zone_update_taskid = GNUNET_SCHEDULER_NO_TASK;
158 /* automatic pkey import for name shortening */
159 static int auto_import_pkey;
162 static struct GNUNET_TIME_Relative default_lookup_timeout;
168 on_resolver_cleanup(void)
170 GNUNET_NAMESTORE_disconnect(namestore_handle, 1);
171 GNUNET_DHT_disconnect(dht_handle);
175 * Task run during shutdown.
181 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
184 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
186 /* Kill zone task for it may make the scheduler hang */
187 if (zone_update_taskid)
188 GNUNET_SCHEDULER_cancel(zone_update_taskid);
190 GNUNET_SERVER_notification_context_destroy (nc);
192 gns_interceptor_stop();
193 gns_resolver_cleanup(&on_resolver_cleanup);
199 * Method called periodicattluy that triggers
200 * iteration over root zone
203 * @param tc task context
206 update_zone_dht_next(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
208 GNUNET_NAMESTORE_zone_iterator_next(namestore_iter);
212 * Continuation for DHT put
215 * @param success GNUNET_OK if the PUT was transmitted,
216 * GNUNET_NO on timeout,
217 * GNUNET_SYSERR on disconnect from service
218 * after the PUT message was transmitted
219 * (so we don't know if it was received or not)
222 record_dht_put(void *cls, int success)
224 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "put request transmitted\n");
229 update_zone_dht_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
232 * Function used to put all records successively into the DHT.
234 * @param cls the closure (NULL)
235 * @param key the public key of the authority (ours)
236 * @param expiration lifetime of the namestore entry
237 * @param name the name of the records
238 * @param rd_count the number of records in data
239 * @param rd the record data
240 * @param signature the signature for the record data
243 put_gns_record(void *cls,
244 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *key,
245 struct GNUNET_TIME_Absolute expiration,
247 unsigned int rd_count,
248 const struct GNUNET_NAMESTORE_RecordData *rd,
249 const struct GNUNET_CRYPTO_RsaSignature *signature)
252 struct GNSNameRecordBlock *nrb;
253 struct GNUNET_CRYPTO_ShortHashCode name_hash;
254 GNUNET_HashCode xor_hash;
255 GNUNET_HashCode name_hash_double;
256 GNUNET_HashCode zone_hash_double;
257 struct GNUNET_CRYPTO_HashAsciiEncoded xor_hash_string;
258 uint32_t rd_payload_length;
259 char* nrb_data = NULL;
265 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
266 "Zone iteration finished. Rescheduling put in %ds\n",
267 dht_max_update_interval);
268 zone_update_taskid = GNUNET_SCHEDULER_add_delayed (
269 GNUNET_TIME_relative_multiply(
270 GNUNET_TIME_UNIT_SECONDS,
271 dht_max_update_interval
273 &update_zone_dht_start,
278 namelen = strlen(name) + 1;
280 if (signature == NULL)
282 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
283 "No signature for %s record data provided! Skipping...\n",
285 zone_update_taskid = GNUNET_SCHEDULER_add_now (&update_zone_dht_next,
291 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
292 "Putting records for %s into the DHT\n", name);
294 rd_payload_length = GNUNET_NAMESTORE_records_get_size (rd_count, rd);
296 nrb = GNUNET_malloc(rd_payload_length + namelen
297 + sizeof(struct GNSNameRecordBlock));
299 nrb->signature = *signature;
301 nrb->public_key = *key;
303 nrb->rd_count = htonl(rd_count);
305 memcpy(&nrb[1], name, namelen);
307 nrb_data = (char*)&nrb[1];
310 rd_payload_length += sizeof(struct GNSNameRecordBlock) + namelen;
312 if (-1 == GNUNET_NAMESTORE_records_serialize (rd_count,
317 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
318 "Record serialization failed! Skipping...\n");
320 zone_update_taskid = GNUNET_SCHEDULER_add_now (&update_zone_dht_next,
327 * calculate DHT key: H(name) xor H(pubkey)
329 GNUNET_CRYPTO_short_hash(name, strlen(name), &name_hash);
330 GNUNET_CRYPTO_short_hash_double (&name_hash, &name_hash_double);
331 GNUNET_CRYPTO_short_hash_double (&zone_hash, &zone_hash_double);
332 GNUNET_CRYPTO_hash_xor(&zone_hash_double, &name_hash_double, &xor_hash);
333 GNUNET_CRYPTO_hash_to_enc (&xor_hash, &xor_hash_string);
335 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
336 "putting records for %s under key: %s with size %d\n",
337 name, (char*)&xor_hash_string, rd_payload_length);
339 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
340 "DHT req to %d\n", DHT_OPERATION_TIMEOUT.rel_value);
341 /* FIXME: keep return value to possibly cancel? */
342 GNUNET_DHT_put (dht_handle, &xor_hash,
343 DHT_GNS_REPLICATION_LEVEL,
345 GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
349 DHT_OPERATION_TIMEOUT,
351 NULL); //cls for cont
353 num_public_records++;
356 * Reschedule periodic put
358 zone_update_taskid = GNUNET_SCHEDULER_add_delayed (record_put_interval,
359 &update_zone_dht_next,
367 * Periodically iterate over our zone and store everything in dht
370 * @param tc task context
373 update_zone_dht_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
375 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling DHT zone update!\n");
377 unsigned long long int interval = 0;
379 if (0 == num_public_records)
382 * If no records are known (startup) or none present
383 * we can safely set the interval to 1s
385 record_put_interval = GNUNET_TIME_relative_multiply(
386 GNUNET_TIME_UNIT_SECONDS,
388 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
389 "No records in db. Adjusted record put interval to 1s\n");
393 interval = max_record_put_interval/num_public_records;
396 record_put_interval = GNUNET_TIME_relative_multiply(
397 GNUNET_TIME_UNIT_SECONDS,
399 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
400 "Adjusted DHT update interval to %ds!\n",
404 /* start counting again */
405 num_public_records = 0;
406 namestore_iter = GNUNET_NAMESTORE_zone_iteration_start (namestore_handle,
408 GNUNET_NAMESTORE_RF_AUTHORITY,
409 GNUNET_NAMESTORE_RF_PRIVATE,
415 /* END DHT ZONE PROPAGATION */
418 * Send shorten response back to client
420 * @param cls the closure containing a client shorten handle
421 * @param name the shortened name result or NULL if cannot be shortened
424 send_shorten_response(void* cls, const char* name)
426 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message with %s\n",
427 "SHORTEN_RESULT", name);
428 struct GNUNET_GNS_ClientShortenResultMessage *rmsg;
429 struct ClientShortenHandle *csh = (struct ClientShortenHandle *)cls;
436 rmsg = GNUNET_malloc(sizeof(struct GNUNET_GNS_ClientShortenResultMessage)
439 rmsg->id = csh->unique_id;
440 rmsg->header.type = htons(GNUNET_MESSAGE_TYPE_GNS_SHORTEN_RESULT);
442 htons(sizeof(struct GNUNET_GNS_ClientShortenResultMessage) +
445 strcpy((char*)&rmsg[1], name);
447 GNUNET_SERVER_notification_context_unicast (nc, csh->client,
448 (const struct GNUNET_MessageHeader *) rmsg,
450 GNUNET_SERVER_receive_done (csh->client, GNUNET_OK);
453 GNUNET_free_non_null(csh->name);
459 * Handle a shorten message from the api
461 * @param cls the closure
462 * @param client the client
463 * @param message the message
465 static void handle_shorten(void *cls,
466 struct GNUNET_SERVER_Client * client,
467 const struct GNUNET_MessageHeader * message)
469 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "SHORTEN");
472 struct ClientShortenHandle *csh;
473 char name[MAX_DNS_NAME_LENGTH];
474 char* nameptr = name;
476 if (ntohs (message->size) < sizeof (struct GNUNET_GNS_ClientShortenMessage))
479 GNUNET_SERVER_receive_done (client, GNUNET_OK);
484 struct GNUNET_GNS_ClientShortenMessage *sh_msg =
485 (struct GNUNET_GNS_ClientShortenMessage *) message;
487 msg_size = ntohs(message->size);
489 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
492 GNUNET_SERVER_receive_done (client, GNUNET_OK);
496 csh = GNUNET_malloc(sizeof(struct ClientShortenHandle));
497 csh->client = client;
498 csh->unique_id = sh_msg->id;
500 GNUNET_STRINGS_utf8_tolower((char*)&sh_msg[1], &nameptr);
502 if (strlen (name) < strlen(GNUNET_GNS_TLD)) {
503 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
504 "SHORTEN: %s is too short", name);
506 send_shorten_response(csh, name);
510 if (strlen (name) > MAX_DNS_NAME_LENGTH) {
511 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
512 "SHORTEN: %s is too long", name);
514 send_shorten_response(csh, name);
518 if (!is_gnunet_tld(name) && !is_zkey_tld(name))
520 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
521 "%s is not our domain. Returning\n", name);
523 send_shorten_response(csh, name);
527 GNUNET_SERVER_notification_context_add (nc, client);
529 /* Start shortening */
530 if (GNUNET_YES == auto_import_pkey)
531 gns_resolver_shorten_name(zone_hash, name, zone_key,
532 &send_shorten_response, csh);
534 gns_resolver_shorten_name(zone_hash, name, NULL,
535 &send_shorten_response, csh);
540 * Send get authority response back to client
542 * @param cls the closure containing a client get auth handle
543 * @param name the shortened name result or NULL if cannot be shortened
546 send_get_auth_response(void *cls, const char* name)
548 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message with %s\n",
549 "GET_AUTH_RESULT", name);
550 struct GNUNET_GNS_ClientGetAuthResultMessage *rmsg;
551 struct ClientGetAuthHandle *cah = (struct ClientGetAuthHandle *)cls;
558 rmsg = GNUNET_malloc(sizeof(struct GNUNET_GNS_ClientGetAuthResultMessage)
561 rmsg->id = cah->unique_id;
562 rmsg->header.type = htons(GNUNET_MESSAGE_TYPE_GNS_GET_AUTH_RESULT);
564 htons(sizeof(struct GNUNET_GNS_ClientGetAuthResultMessage) +
567 strcpy((char*)&rmsg[1], name);
569 GNUNET_SERVER_notification_context_unicast (nc, cah->client,
570 (const struct GNUNET_MessageHeader *) rmsg,
572 GNUNET_SERVER_receive_done (cah->client, GNUNET_OK);
574 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up handles...\n");
577 GNUNET_free_non_null(cah->name);
580 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "done.\n");
586 * Handle a get authority message from the api
588 * @param cls the closure
589 * @param client the client
590 * @param message the message
592 static void handle_get_authority(void *cls,
593 struct GNUNET_SERVER_Client * client,
594 const struct GNUNET_MessageHeader * message)
596 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "GET_AUTH");
599 struct ClientGetAuthHandle *cah;
600 char name[MAX_DNS_NAME_LENGTH];
601 char* nameptr = name;
604 if (ntohs (message->size) < sizeof (struct GNUNET_GNS_ClientGetAuthMessage))
607 GNUNET_SERVER_receive_done (client, GNUNET_OK);
611 GNUNET_SERVER_notification_context_add (nc, client);
613 struct GNUNET_GNS_ClientGetAuthMessage *sh_msg =
614 (struct GNUNET_GNS_ClientGetAuthMessage *) message;
616 msg_size = ntohs(message->size);
618 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
621 GNUNET_SERVER_receive_done (client, GNUNET_OK);
625 GNUNET_STRINGS_utf8_tolower((char*)&sh_msg[1], &nameptr);
628 cah = GNUNET_malloc(sizeof(struct ClientGetAuthHandle));
629 cah->client = client;
630 cah->unique_id = sh_msg->id;
632 if (strlen(name) < strlen(GNUNET_GNS_TLD))
634 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
635 "GET_AUTH: %s is too short. Returning\n", name);
637 send_get_auth_response(cah, name);
641 if (strlen (name) > MAX_DNS_NAME_LENGTH) {
642 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
643 "GET_AUTH: %s is too long", name);
645 send_get_auth_response(cah, name);
649 if (strcmp(name+strlen(name)-strlen(GNUNET_GNS_TLD),
650 GNUNET_GNS_TLD) != 0)
652 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
653 "GET_AUTH: %s is not our domain. Returning\n", name);
655 send_get_auth_response(cah, name);
659 if (strcmp(name, GNUNET_GNS_TLD) == 0)
661 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
662 "GET_AUTH: %s is us. Returning\n", name);
664 send_get_auth_response(cah, name);
668 cah->name = GNUNET_malloc(strlen(name)
669 - strlen(GNUNET_GNS_TLD) + 1);
671 strlen(name)-strlen(GNUNET_GNS_TLD) + 1);
672 memcpy(cah->name, name,
673 strlen(name)-strlen(GNUNET_GNS_TLD));
675 /* Start delegation resolution in our namestore */
676 gns_resolver_get_authority(zone_hash, name, &send_get_auth_response, cah);
681 * Reply to client with the result from our lookup.
683 * @param cls the closure (our client lookup handle)
684 * @param rd_count the number of records
685 * @param rd the record data
688 send_lookup_response(void* cls,
690 const struct GNUNET_NAMESTORE_RecordData *rd)
692 struct ClientLookupHandle* clh = (struct ClientLookupHandle*)cls;
693 struct GNUNET_GNS_ClientLookupResultMessage *rmsg;
696 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending `%s' message with %d results\n",
697 "LOOKUP_RESULT", rd_count);
699 len = GNUNET_NAMESTORE_records_get_size (rd_count, rd);
700 rmsg = GNUNET_malloc(len+sizeof(struct GNUNET_GNS_ClientLookupResultMessage));
702 rmsg->id = clh->unique_id;
703 rmsg->rd_count = htonl(rd_count);
704 rmsg->header.type = htons(GNUNET_MESSAGE_TYPE_GNS_LOOKUP_RESULT);
706 htons(len+sizeof(struct GNUNET_GNS_ClientLookupResultMessage));
708 GNUNET_NAMESTORE_records_serialize (rd_count, rd, len, (char*)&rmsg[1]);
710 GNUNET_SERVER_notification_context_unicast (nc, clh->client,
711 (const struct GNUNET_MessageHeader *) rmsg,
713 GNUNET_SERVER_receive_done (clh->client, GNUNET_OK);
716 GNUNET_free(clh->name);
723 * Handle lookup requests from client
725 * @param cls the closure
726 * @param client the client
727 * @param message the message
730 handle_lookup(void *cls,
731 struct GNUNET_SERVER_Client * client,
732 const struct GNUNET_MessageHeader * message)
734 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "LOOKUP");
738 char name[MAX_DNS_NAME_LENGTH];
739 struct ClientLookupHandle *clh;
740 char* nameptr = name;
742 if (ntohs (message->size) < sizeof (struct GNUNET_GNS_ClientLookupMessage))
745 GNUNET_SERVER_receive_done (client, GNUNET_OK);
749 GNUNET_SERVER_notification_context_add (nc, client);
751 struct GNUNET_GNS_ClientLookupMessage *sh_msg =
752 (struct GNUNET_GNS_ClientLookupMessage *) message;
754 msg_size = ntohs(message->size);
756 if (msg_size > GNUNET_SERVER_MAX_MESSAGE_SIZE)
759 GNUNET_SERVER_receive_done (client, GNUNET_OK);
763 GNUNET_STRINGS_utf8_tolower((char*)&sh_msg[1], &nameptr);
764 namelen = strlen(name)+1;
765 clh = GNUNET_malloc(sizeof(struct ClientLookupHandle));
766 clh->client = client;
767 clh->name = GNUNET_malloc(namelen);
768 strcpy(clh->name, name);
769 clh->unique_id = sh_msg->id;
770 clh->type = ntohl(sh_msg->type);
772 if (strlen (name) > MAX_DNS_NAME_LENGTH) {
773 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
774 "LOOKUP: %s is too long", name);
776 send_lookup_response(clh, 0, NULL);
780 if (GNUNET_YES == auto_import_pkey)
782 gns_resolver_lookup_record(zone_hash, clh->type, name,
784 default_lookup_timeout,
785 &send_lookup_response, clh);
789 gns_resolver_lookup_record(zone_hash, clh->type, name,
791 default_lookup_timeout,
792 &send_lookup_response, clh);
799 * Process GNS requests.
801 * @param cls closure)
802 * @param server the initialized server
803 * @param c configuration to use
806 run (void *cls, struct GNUNET_SERVER_Handle *server,
807 const struct GNUNET_CONFIGURATION_Handle *c)
810 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Initializing GNS\n");
813 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
814 unsigned long long max_parallel_bg_queries = 0;
815 unsigned long long default_lookup_timeout_secs = 0;
816 int ignore_pending = GNUNET_NO;
818 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
819 {&handle_shorten, NULL, GNUNET_MESSAGE_TYPE_GNS_SHORTEN, 0},
820 {&handle_lookup, NULL, GNUNET_MESSAGE_TYPE_GNS_LOOKUP, 0},
821 {&handle_get_authority, NULL, GNUNET_MESSAGE_TYPE_GNS_GET_AUTH, 0}
824 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (c, "gns",
825 "ZONEKEY", &keyfile))
827 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
828 "No private key for root zone specified!\n");
829 GNUNET_SCHEDULER_shutdown(0);
833 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
834 "Using keyfile %s for root zone.\n", keyfile);
836 zone_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
837 GNUNET_CRYPTO_rsa_key_get_public (zone_key, &pkey);
839 GNUNET_CRYPTO_short_hash(&pkey,
840 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
842 GNUNET_free(keyfile);
845 * handle to our local namestore
847 namestore_handle = GNUNET_NAMESTORE_connect(c);
849 if (NULL == namestore_handle)
851 //FIXME do error handling;
852 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
853 "Failed to connect to the namestore!\n");
854 GNUNET_SCHEDULER_shutdown(0);
860 auto_import_pkey = GNUNET_NO;
863 GNUNET_CONFIGURATION_get_value_yesno (c, "gns",
866 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
867 "Automatic PKEY import is enabled.\n");
868 auto_import_pkey = GNUNET_YES;
872 dht_max_update_interval = GNUNET_GNS_DHT_MAX_UPDATE_INTERVAL;
875 GNUNET_CONFIGURATION_get_value_number (c, "gns",
877 &dht_max_update_interval))
879 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
880 "DHT zone update interval: %d\n",
881 dht_max_update_interval);
884 max_record_put_interval = 1;
887 GNUNET_CONFIGURATION_get_value_number (c, "gns",
888 "RECORD_PUT_INTERVAL",
889 &max_record_put_interval))
891 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
892 "Record put interval: %d\n",
893 max_record_put_interval);
897 GNUNET_CONFIGURATION_get_value_number (c, "gns",
898 "MAX_PARALLEL_BACKGROUND_QUERIES",
899 &max_parallel_bg_queries))
901 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
902 "Number of allowed parallel background queries: %d\n",
903 max_parallel_bg_queries);
907 GNUNET_CONFIGURATION_get_value_yesno (c, "gns",
908 "AUTO_IMPORT_CONFIRMATION_REQ"))
910 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
911 "Auto import requires user confirmation\n");
912 ignore_pending = GNUNET_YES;
916 GNUNET_CONFIGURATION_get_value_number(c, "gns",
917 "DEFAULT_LOOKUP_TIMEOUT",
918 &default_lookup_timeout_secs))
920 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
921 "Default lookup timeout: %ds\n", default_lookup_timeout_secs);
922 default_lookup_timeout = GNUNET_TIME_relative_multiply(
923 GNUNET_TIME_UNIT_SECONDS,
924 default_lookup_timeout_secs);
930 dht_handle = GNUNET_DHT_connect(c,
931 //max_parallel_bg_queries); //FIXME get ht_len from cfg
934 if (NULL == dht_handle)
936 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Could not connect to DHT!\n");
939 if (gns_resolver_init(namestore_handle, dht_handle, zone_hash,
940 max_parallel_bg_queries,
944 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
945 "Unable to initialize resolver!\n");
946 GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
951 GNUNET_CONFIGURATION_get_value_yesno (c, "gns", "HIJACK_DNS"))
953 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
954 "DNS hijacking enabled... connecting to service.\n");
956 if (gns_interceptor_init(zone_hash, zone_key, c) == GNUNET_SYSERR)
958 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
959 "Failed to enable the dns interceptor!\n");
964 * Schedule periodic put
966 * We have roughly an hour for all records;
968 record_put_interval = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS,
970 zone_update_taskid = GNUNET_SCHEDULER_add_now (&update_zone_dht_start, NULL);
972 GNUNET_SERVER_add_handlers (server, handlers);
975 //GNUNET_SERVER_disconnect_notify (server,
976 // &client_disconnect_notification,
979 nc = GNUNET_SERVER_notification_context_create (server, 1);
981 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
987 * The main function for the GNS service.
989 * @param argc number of arguments from the command line
990 * @param argv command line arguments
991 * @return 0 ok, 1 on error
994 main (int argc, char *const *argv)
1000 GNUNET_SERVICE_run (argc, argv, "gns", GNUNET_SERVICE_OPTION_NONE, &run,
1005 /* end of gnunet-service-gns.c */