2 This file is part of GNUnet.
3 (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
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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
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
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13 General Public License for more details.
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24 * - Write xquery and block plugin
25 * - Think about mixed dns queries (.gnunet and .org)
26 * - (de-)serialisation of records/signature trees
27 * - The smaller FIXME issues all around
29 * @file gns/gnunet-service-gns.c
30 * @brief GNUnet GNS service
31 * @author Martin Schanzenbach
34 #include "gnunet_util_lib.h"
35 #include "gnunet_transport_service.h"
36 #include "gnunet_dns_service.h"
37 #include "gnunet_dnsparser_lib.h"
38 #include "gnunet_dht_service.h"
39 #include "gnunet_namestore_service.h"
40 #include "gnunet_gns_service.h"
43 /* Ignore for now not used anyway and probably never will */
44 #define GNUNET_MESSAGE_TYPE_GNS_CLIENT_LOOKUP 23
45 #define GNUNET_MESSAGE_TYPE_GNS_CLIENT_RESULT 24
47 struct GNUNET_GNS_QueryRecordList
52 struct GNUNET_GNS_QueryRecordList * next;
53 struct GNUNET_GNS_QueryRecordList * prev;
55 struct GNUNET_DNSPARSER_Record * record;
59 * A result list for namestore queries
61 struct GNUNET_GNS_PendingQuery
63 /* the answer packet */
64 struct GNUNET_DNSPARSER_Packet *answer;
66 /* records to put into answer packet */
67 struct GNUNET_GNS_QueryRecordList * records_head;
68 struct GNUNET_GNS_QueryRecordList * records_tail;
71 int num_authority_records; //FIXME are all of our replies auth?
77 /* the dns request id */
78 int id; // FIXME can handle->request_id also be used here?
80 /* the request handle to reply to */
81 struct GNUNET_DNS_RequestHandle *request_handle;
83 /* hast this query been answered? */
86 /* the authoritative zone to query */
87 GNUNET_HashCode *authority;
89 /* we have an authority in namestore that
90 * may be able to resolve
97 * Our handle to the DNS handler library
99 struct GNUNET_DNS_Handle *dns_handle;
102 * Our handle to the DHT
104 struct GNUNET_DHT_Handle *dht_handle;
106 struct GNUNET_TIME_Relative dht_update_interval;
109 * Our zone's private key
111 struct GNUNET_CRYPTO_RsaPrivateKey *zone_key;
114 * Our handle to the namestore service
116 struct GNUNET_NAMESTORE_Handle *namestore_handle;
119 * The configuration the GNS service is running with
121 const struct GNUNET_CONFIGURATION_Handle *GNS_cfg;
124 * Our notification context.
126 static struct GNUNET_SERVER_NotificationContext *nc;
131 GNUNET_HashCode *zone_hash;
134 * Our tld. Maybe get from config file
136 const char* gnunet_tld = ".gnunet";
139 * Task run during shutdown.
145 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
147 GNUNET_DNS_disconnect(dns_handle);
148 GNUNET_NAMESTORE_disconnect(namestore_handle, 0);
149 GNUNET_DHT_disconnect(dht_handle);
154 * This is where it gets tricky
155 * 1. we store (cache) all replies. Simple.
156 * 2. If we see an authority "closer" to the name
157 * we have to start a new query. Unless we get
159 * It is important that the authority is closer
160 * because else we might end up in an endless loop
161 * (maybe keep track of queried keys?)
162 * Of course we could just limit the resolution
163 * with a timeout (makes sense for clients) but we need
164 * to know when to stop querying.
165 * 3. Also the name returned for the record here will probably
166 * not match our name. How do we check this?
169 process_authority_dht_result(void* cls,
170 struct GNUNET_TIME_Absolute exp,
171 const GNUNET_HashCode * key,
172 const struct GNUNET_PeerIdentity *get_path,
173 unsigned int get_path_length,
174 const struct GNUNET_PeerIdentity *put_path,
175 unsigned int put_path_length,
176 enum GNUNET_BLOCK_Type type,
177 size_t size, const void *data)
183 * data is a serialized PKEY record (probably)
184 * parse, put into namestore
185 * namestore zone hash is in query.
186 * Then adjust query->name and call resolve_name
187 * with new zone (the one just received)
189 * query->authority = new_authority
190 * resolve_name(query, new_authority);
195 * Start DHT lookup for a name -> PKEY (compare NS) record in
196 * query->authority's zone
198 * @param query the pending gns query
199 * @param name the name of the PKEY record
202 resolve_authority_dht(struct GNUNET_GNS_PendingQuery *query, const char* name)
204 enum GNUNET_GNS_RecordType rtype = GNUNET_GNS_RECORD_PKEY;
205 struct GNUNET_TIME_Relative timeout;
206 GNUNET_HashCode name_hash;
207 GNUNET_HashCode lookup_key;
209 GNUNET_CRYPTO_hash(name, strlen(name), &name_hash);
210 GNUNET_CRYPTO_hash_xor(&name_hash, query->authority, &lookup_key);
212 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20);
214 //FIXME how long to wait for results?
215 GNUNET_DHT_get_start(dht_handle, timeout,
216 GNUNET_BLOCK_TYPE_TEST, //FIXME todo
218 5, //Replication level FIXME
220 &rtype, //xquery FIXME this is bad
221 sizeof(GNUNET_GNS_RECORD_PKEY),
222 &process_authority_dht_result,
228 process_name_dht_result(void* cls,
229 struct GNUNET_TIME_Absolute exp,
230 const GNUNET_HashCode * key,
231 const struct GNUNET_PeerIdentity *get_path,
232 unsigned int get_path_length,
233 const struct GNUNET_PeerIdentity *put_path,
234 unsigned int put_path_length,
235 enum GNUNET_BLOCK_Type type,
236 size_t size, const void *data)
242 * data is a searialized GNS record of type
243 * query->record_type. Parse and put into namestore
244 * namestore zone hash is in query.
245 * Check if record type and name match in query and reply
251 * Start DHT lookup for a name -> query->record_type record in
252 * query->authority's zone
254 * @param query the pending gns query
255 * @param name the name to query record
258 resolve_name_dht(struct GNUNET_GNS_PendingQuery *query, const char* name)
260 struct GNUNET_TIME_Relative timeout;
261 GNUNET_HashCode name_hash;
262 GNUNET_HashCode lookup_key;
264 GNUNET_CRYPTO_hash(name, strlen(name), &name_hash);
265 GNUNET_CRYPTO_hash_xor(&name_hash, query->authority, &lookup_key);
267 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20);
269 //FIXME how long to wait for results?
270 GNUNET_DHT_get_start(dht_handle, timeout,
271 GNUNET_BLOCK_TYPE_TEST, //FIXME todo
273 5, //Replication level FIXME
275 &query->type, //xquery
277 &process_name_dht_result,
284 resolve_name(struct GNUNET_GNS_PendingQuery *query, GNUNET_HashCode *zone);
287 * This is a callback function that should give us only PKEY
288 * records. Used to iteratively query the namestore for 'closest'
291 * @param cls the pending query
292 * @param zone our zone hash
293 * @param name the name for which we need an authority
294 * @param record_type the type of record (PKEY)
295 * @param expiration expiration date of the record
296 * @param flags namestore record flags
297 * @param sig_loc the location of the record in the signature tree
298 * @param size the size of the record
299 * @param data the record data
302 process_authority_lookup(void* cls, const GNUNET_HashCode *zone,
303 const char *name, uint32_t record_type,
304 struct GNUNET_TIME_Absolute expiration,
305 enum GNUNET_NAMESTORE_RecordFlags flags,
306 const struct GNUNET_NAMESTORE_SignatureLocation *sig_loc,
307 size_t size, const void *data)
309 struct GNUNET_GNS_PendingQuery *query;
311 query = (struct GNUNET_GNS_PendingQuery *)cls;
314 * No authority found in namestore.
318 if (query->authority_found)
320 query->authority_found = 0;
321 resolve_name(query, query->authority);
326 * We did not find an authority in the namestore
327 * _IF_ the current authoritative zone is us.
329 * _ELSE_ we cannot still check the dht
331 if (GNUNET_CRYPTO_hash_cmp(zone, zone_hash))
333 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "NX record\n");
334 //FIXME return NX answer
338 resolve_authority_dht(query, name);
343 * We found an authority that may be able to help us
346 query->authority_found = 1;
347 GNUNET_HashCode *key = (GNUNET_HashCode*) data; //FIXME i assume this works
348 query->authority = key;
354 * Reply to client with the result from our lookup.
356 * @param answer the pending query used in the lookup
359 reply_to_dns(struct GNUNET_GNS_PendingQuery *answer)
361 struct GNUNET_GNS_QueryRecordList *i;
362 struct GNUNET_DNSPARSER_Packet *packet;
363 struct GNUNET_DNSPARSER_Flags dnsflags;
369 packet = GNUNET_malloc(sizeof(struct GNUNET_DNSPARSER_Packet));
371 GNUNET_malloc(sizeof(struct GNUNET_DNSPARSER_Record) * answer->num_records);
373 len = sizeof(struct GNUNET_DNSPARSER_Record*);
375 for (i=answer->records_head; i != NULL; i=i->next)
377 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
378 "Adding %s to DNS response\n", i->record->name);
379 memcpy(&packet->answers[j],
381 sizeof (struct GNUNET_DNSPARSER_Record));
382 GNUNET_free(i->record);
385 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "after memcpy\n");
386 /* FIXME how to handle auth, additional etc */
387 packet->num_answers = answer->num_records;
388 packet->num_authority_records = answer->num_authority_records;
390 dnsflags.authoritative_answer = 1;
391 dnsflags.opcode = GNUNET_DNSPARSER_OPCODE_QUERY;
392 dnsflags.return_code = GNUNET_DNSPARSER_RETURN_CODE_NO_ERROR; //not sure
393 dnsflags.query_or_response = 1;
394 packet->flags = dnsflags;
396 packet->id = answer->id;
398 //FIXME this is silently discarded
399 ret = GNUNET_DNSPARSER_pack (packet,
400 1024, /* FIXME magic from dns redirector */
403 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
404 "Built DNS response! (ret=%d)\n", ret);
405 if (ret == GNUNET_OK)
407 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
408 "Answering DNS request\n");
409 GNUNET_DNS_request_answer(answer->request_handle,
413 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Answered DNS request\n");
414 //FIXME return code, free datastructures
418 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
419 "Error building DNS response! (ret=%d)", ret);
424 * Namestore calls this function if we have an entry for this name.
425 * (or data=null to indicate the lookup has finished)
427 * @param cls the pending query
428 * @param zone the zone of the lookup
429 * @param name the name looked up
430 * @param record_type the record type
431 * @param expiration lifetime of the record
432 * @param flags record flags
433 * @param sig_loc location of the record in the signature tree
434 * @param size the size of the record
435 * @param data the record data
438 process_authoritative_result(void* cls, const GNUNET_HashCode *zone,
439 const char *name, uint32_t record_type,
440 struct GNUNET_TIME_Absolute expiration,
441 enum GNUNET_NAMESTORE_RecordFlags flags,
442 const struct GNUNET_NAMESTORE_SignatureLocation *sig_loc,
443 size_t size, const void *data)
445 struct GNUNET_GNS_PendingQuery *query;
446 struct GNUNET_GNS_QueryRecordList *qrecord;
447 struct GNUNET_DNSPARSER_Record *record;
448 query = (struct GNUNET_GNS_PendingQuery *) cls;
456 * Do we have what we need to answer?
457 * If not -> DHT Phase
458 * if full_name == next_name and not anwered we cannot resolve
460 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
461 "Namestore lookup terminated. (answered=%d)", query->answered);
469 * if this is not our zone we cannot rely on the namestore to be
470 * complete. -> Query DHT
472 if (!GNUNET_CRYPTO_hash_cmp(zone, zone_hash))
475 resolve_name_dht(query, name);
480 * Our zone and no result? Cannot resolve TT
481 * FIXME modify query to say NX
491 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
492 "Processing additional result for %s from namestore\n", name);
494 qrecord = GNUNET_malloc(sizeof(struct GNUNET_GNS_QueryRecordList));
495 record = GNUNET_malloc(sizeof(struct GNUNET_DNSPARSER_Record));
496 qrecord->record = record;
498 record->name = (char*)query->original_name;
501 * FIXME for gns records this requires the dnsparser to be modified!
502 * or use RAW. But RAW data need serialization!
503 * maybe store record data appropriately in namestore to avoid a
504 * huge switch statement?
506 if (record_type == GNUNET_DNSPARSER_TYPE_A)
508 record->data.raw.data = (char*)data;
509 record->data.raw.data_len = size;
511 record->expiration_time = expiration;
512 record->type = record_type;
513 record->class = GNUNET_DNSPARSER_CLASS_INTERNET; /* srsly? */
515 //FIXME authoritative answer if we find a result in namestore
516 if (flags == GNUNET_NAMESTORE_RF_AUTHORITY)
518 //query->num_authority_records++;
522 * This seems to take into account that the result could
523 * be different in name and or record type...
524 * but to me this does not make sense
526 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Found answer to query!\n");
529 query->num_records++;
532 * FIXME watch for leaks
533 * properly free pendingquery when the time comes
535 GNUNET_CONTAINER_DLL_insert(query->records_head,
542 is_canonical(char* name)
544 uint32_t len = strlen(name);
547 for (i=0; i<len; i++)
549 if (*(name+i) == '.')
555 char* move_up(char* name)
559 if (is_canonical(name))
562 for (len = strlen(name); len > 0; len--)
564 if (*(name+len) == '.')
571 name[len] = '\0'; //terminate string
577 resolve_name(struct GNUNET_GNS_PendingQuery *query, GNUNET_HashCode *zone)
579 if (is_canonical(query->name))
581 //We only need to check this zone's ns
582 GNUNET_NAMESTORE_lookup_name(namestore_handle,
586 &process_authoritative_result,
591 //We have to resolve the authoritative entity
592 char *new_authority = move_up(query->name);
593 GNUNET_NAMESTORE_lookup_name(namestore_handle,
596 GNUNET_GNS_RECORD_PKEY,
597 &process_authority_lookup,
603 * Phase 1 of name resolution
604 * Lookup local namestore. If we find a match there we can
605 * provide an authoritative answer without the dht.
606 * If we don't we have to start querying the dht.
608 * FIXME now it is possible that we have a foreign zone (or even the result)
609 * cached in our namestore. Look up as well? We need a list of cached zones
612 * @param rh the request handle of the DNS request from a client
613 * @param name the name to look up
614 * @param id the id of the dns request (for the reply)
615 * @param type the record type to look for
618 start_resolution(struct GNUNET_DNS_RequestHandle *rh,
619 char* name, uint16_t id, uint16_t type)
621 struct GNUNET_GNS_PendingQuery *query;
623 //FIXME remove .gnunet here from name
624 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "This is .gnunet (%s)!\n", name);
625 query = GNUNET_malloc(sizeof (struct GNUNET_GNS_PendingQuery));
627 query->original_name = name; //Full name of original query
629 //FIXME do not forget to free!!
630 query->name = GNUNET_malloc(strlen(name)-strlen(gnunet_tld) + 1);
631 memset(query->name, 0, strlen(name)-strlen(gnunet_tld) + 1);
632 memcpy(query->name, name, strlen(name)-strlen(gnunet_tld));
635 query->request_handle = rh;
637 //Start resolution in our zone
638 resolve_name(query, zone_hash);
642 * The DNS request handler
643 * Called for every incoming DNS request.
646 * @param rh request handle to user for reply
647 * @param request_length number of bytes in request
648 * @param request udp payload of the DNS request
651 handle_dns_request(void *cls,
652 struct GNUNET_DNS_RequestHandle *rh,
653 size_t request_length,
656 struct GNUNET_DNSPARSER_Packet *p;
660 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Hijacked a DNS request...processing\n");
661 p = GNUNET_DNSPARSER_parse (request, request_length);
665 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
666 "Received malformed DNS packet, leaving it untouched\n");
667 GNUNET_DNS_request_forward (rh);
672 * Check tld and decide if we or
673 * legacy dns is responsible
675 * FIXME now in theory there could be more than 1 query in the request
676 * but if this is case we get into trouble:
677 * either we query the GNS or the DNS. We cannot do both!
678 * So I suggest to either only allow a single query per request or
679 * only allow GNS or DNS requests.
680 * The way it is implemented here now is buggy and will lead to erratic
681 * behaviour (if multiple queries are present).
683 for (i=0;i<p->num_queries;i++)
685 tldoffset = p->queries[i].name + strlen(p->queries[i].name);
687 while ((*tldoffset) != '.')
690 if (0 == strcmp(tldoffset, gnunet_tld))
692 start_resolution(rh, p->queries[i].name, p->id, p->queries[i].type);
697 * This request does not concern us. Forward to real DNS.
699 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
700 "Request for %s is forwarded to DNS\n", p->queries[i].name);
701 GNUNET_DNS_request_forward (rh);
707 * test function that stores some data in the namestore
710 put_some_records(void)
712 /* put a few records into namestore */
713 char* ipA = "1.2.3.4";
714 char* ipB = "5.6.7.8";
715 struct in_addr *alice = GNUNET_malloc(sizeof(struct in_addr));
716 struct in_addr *bob = GNUNET_malloc(sizeof(struct in_addr));
717 GNUNET_assert(1 == inet_pton (AF_INET, ipA, alice));
718 GNUNET_assert(1 == inet_pton (AF_INET, ipB, bob));
719 GNUNET_NAMESTORE_record_put (namestore_handle,
722 GNUNET_GNS_RECORD_TYPE_A,
723 GNUNET_TIME_absolute_get_forever(),
724 GNUNET_NAMESTORE_RF_AUTHORITY,
726 sizeof(struct in_addr),
730 GNUNET_NAMESTORE_record_put (namestore_handle,
733 GNUNET_GNS_RECORD_TYPE_A,
734 GNUNET_TIME_absolute_get_forever(),
735 GNUNET_NAMESTORE_RF_AUTHORITY,
737 sizeof(struct in_addr),
743 //Prototype... needed in put function
745 update_zone_dht(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
748 * Function used to put all records successively into the DHT.
749 * FIXME also serializes records. maybe do this somewhere else...
750 * FIXME don't store private records (maybe zone transfer does this)
752 * @param cls the closure (NULL)
753 * @param zone our root zone hash
754 * @param name the name of the record
755 * @param record_type the type of the record
756 * @param expiration lifetime of the record
757 * @param flags flags of the record
758 * @param sig_loc location of record in signature tree
759 * @param size size of the record
760 * @param record_data the record data
763 put_gns_record(void *cls, const GNUNET_HashCode *zone, const char *name,
764 uint32_t record_type, struct GNUNET_TIME_Absolute expiration,
765 enum GNUNET_NAMESTORE_RecordFlags flags,
766 const struct GNUNET_NAMESTORE_SignatureLocation *sig_loc,
767 size_t size, const void *record_data)
769 struct GNUNET_TIME_Relative timeout;
773 struct GNUNET_TIME_AbsoluteNBO exp_nbo;
774 exp_nbo = GNUNET_TIME_absolute_hton (expiration);
775 uint32_t namelen = htonl(strlen(name));
776 uint16_t flags_nbo = htons(flags);
777 uint64_t offset = GNUNET_htonll(sig_loc->offset);
778 uint32_t depth = htonl(sig_loc->depth);
779 uint32_t revision = htonl(sig_loc->revision);
780 GNUNET_HashCode name_hash;
781 GNUNET_HashCode xor_hash;
784 * I guess this can be done prettier
785 * FIXME extract into function, maybe even into different file
787 size_t record_len = sizeof(size_t) + sizeof(uint32_t) +
789 sizeof(struct GNUNET_NAMESTORE_SignatureLocation) +
790 sizeof(uint32_t) + strlen(name) + size;
792 record_type = htonl(record_type);
794 data = GNUNET_malloc(record_len);
798 memcpy(data_ptr, &namelen, sizeof(size_t));
799 data_ptr += sizeof(size_t);
801 memcpy(data_ptr, name, namelen);
804 memcpy(data_ptr, &record_type, sizeof(uint32_t));
805 data_ptr += sizeof(uint32_t);
807 memcpy(data_ptr, &exp_nbo, sizeof(struct GNUNET_TIME_AbsoluteNBO));
808 data_ptr += sizeof(struct GNUNET_TIME_AbsoluteNBO);
810 memcpy(data_ptr, &flags_nbo, sizeof(uint16_t));
811 data_ptr += sizeof(uint16_t);
813 memcpy(data_ptr, &offset, sizeof(uint64_t));
814 data_ptr += sizeof(uint64_t);
816 memcpy(data_ptr, &depth, sizeof(uint32_t));
817 data_ptr += sizeof(uint32_t);
819 memcpy(data_ptr, &revision, sizeof(uint32_t));
820 data_ptr += sizeof(uint32_t);
822 memcpy(data_ptr, &size, sizeof(uint32_t));
823 data_ptr += sizeof(uint32_t);
826 * FIXME note that this only works with raw data in nbo
827 * write helper function that converts properly and returns buffer
829 memcpy(data_ptr, record_data, size);
831 /*Doing this made me sad...*/
834 * FIXME magic number 20 move to config file
836 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20);
838 GNUNET_CRYPTO_hash(name, strlen(name), &name_hash);
839 GNUNET_CRYPTO_hash_xor(zone_hash, &name_hash, &xor_hash);
840 GNUNET_DHT_put (dht_handle, &xor_hash,
841 5, //replication level
843 GNUNET_BLOCK_TYPE_TEST, //FIXME todo block plugin
846 expiration, //FIXME from record makes sense? is absolute?
848 NULL, //FIXME continuation needed? success check? yes ofc
849 NULL); //cls for cont
852 * Reschedule periodic put
854 GNUNET_SCHEDULER_add_delayed (dht_update_interval,
861 * Periodically iterate over our zone and store everything in dht
864 * @param tc task context
867 update_zone_dht(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
869 GNUNET_NAMESTORE_zone_transfer (namestore_handle, zone_hash,
875 * Process GNS requests.
878 * @param server the initialized server
879 * @param c configuration to use
882 run (void *cls, struct GNUNET_SERVER_Handle *server,
883 const struct GNUNET_CONFIGURATION_Handle *c)
886 zone_key = GNUNET_CRYPTO_rsa_key_create ();
887 GNUNET_CRYPTO_hash(zone_key, GNUNET_CRYPTO_RSA_KEY_LENGTH,//FIXME is this ok?
890 nc = GNUNET_SERVER_notification_context_create (server, 1);
892 /* FIXME - do some config parsing
893 * - Maybe only hijack dns if option is set (HIJACK_DNS=1)
896 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
899 * Do gnunet dns init here
901 dns_handle = GNUNET_DNS_connect(c,
902 GNUNET_DNS_FLAG_PRE_RESOLUTION,
903 &handle_dns_request, /* rh */
906 if (NULL == dns_handle)
908 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
909 "Failed to connect to the dnsservice!\n");
913 * handle to our local namestore
915 namestore_handle = GNUNET_NAMESTORE_connect(c);
917 if (NULL == namestore_handle)
919 //FIXME do error handling;
920 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
921 "Failed to connect to the namestore!\n");
927 dht_handle = GNUNET_DHT_connect(c, 1); //FIXME get ht_len from cfg
929 if (NULL == dht_handle)
931 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Could not connect to DHT!\n");
934 put_some_records(); //FIXME for testing
937 * Schedule periodic put
940 dht_update_interval = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS,
941 60); //FIXME from cfg
942 GNUNET_SCHEDULER_add_delayed (dht_update_interval,
950 * The main function for the GNS service.
952 * @param argc number of arguments from the command line
953 * @param argv command line arguments
954 * @return 0 ok, 1 on error
957 main (int argc, char *const *argv)
963 GNUNET_SERVICE_run (argc, argv, "gns", GNUNET_SERVICE_OPTION_NONE, &run,
968 /* end of gnunet-service-gns.c */