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.
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);
153 * Function called when we get a result from the dht
156 * @param cls the query handle
157 * @param exp lifetime
158 * @param key the key the record was stored under
159 * @param get_path get path
160 * @param get_path_length get path length
161 * @param put_path put path
162 * @param put_path_length put path length
163 * @param type the block type
164 * @param size the size of the record
165 * @param data the record data
168 process_authority_dht_result(void* cls,
169 struct GNUNET_TIME_Absolute exp,
170 const GNUNET_HashCode * key,
171 const struct GNUNET_PeerIdentity *get_path,
172 unsigned int get_path_length,
173 const struct GNUNET_PeerIdentity *put_path,
174 unsigned int put_path_length,
175 enum GNUNET_BLOCK_Type type,
176 size_t size, const void *data)
182 * data is a serialized PKEY record (probably)
183 * parse, put into namestore
184 * namestore zone hash is in query.
185 * Then adjust query->name and call resolve_name
186 * with new zone (the one just received)
188 * query->authority = new_authority
189 * resolve_name(query, new_authority);
194 * Start DHT lookup for a name -> PKEY (compare NS) record in
195 * query->authority's zone
197 * @param query the pending gns query
198 * @param name the name of the PKEY record
201 resolve_authority_dht(struct GNUNET_GNS_PendingQuery *query, const char* name)
203 enum GNUNET_GNS_RecordType rtype = GNUNET_GNS_RECORD_PKEY;
204 struct GNUNET_TIME_Relative timeout;
205 GNUNET_HashCode name_hash;
206 GNUNET_HashCode lookup_key;
208 GNUNET_CRYPTO_hash(name, strlen(name), &name_hash);
209 GNUNET_CRYPTO_hash_xor(&name_hash, query->authority, &lookup_key);
211 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20);
213 //FIXME how long to wait for results?
214 GNUNET_DHT_get_start(dht_handle, timeout,
215 GNUNET_BLOCK_TYPE_TEST, //FIXME todo
217 5, //Replication level FIXME
219 &rtype, //xquery FIXME this is bad
220 sizeof(GNUNET_GNS_RECORD_PKEY),
221 &process_authority_dht_result,
227 * Function called when we get a result from the dht
230 * @param cls the query handle
231 * @param exp lifetime
232 * @param key the key the record was stored under
233 * @param get_path get path
234 * @param get_path_length get path length
235 * @param put_path put path
236 * @param put_path_length put path length
237 * @param type the block type
238 * @param size the size of the record
239 * @param data the record data
242 process_name_dht_result(void* cls,
243 struct GNUNET_TIME_Absolute exp,
244 const GNUNET_HashCode * key,
245 const struct GNUNET_PeerIdentity *get_path,
246 unsigned int get_path_length,
247 const struct GNUNET_PeerIdentity *put_path,
248 unsigned int put_path_length,
249 enum GNUNET_BLOCK_Type type,
250 size_t size, const void *data)
256 * data is a serialized GNS record of type
257 * query->record_type. Parse and put into namestore
258 * namestore zone hash is in query.
259 * Check if record type and name match in query and reply
265 * Start DHT lookup for a (name -> query->record_type) record in
266 * query->authority's zone
268 * @param query the pending gns query
269 * @param name the name to query record
272 resolve_name_dht(struct GNUNET_GNS_PendingQuery *query, const char* name)
274 struct GNUNET_TIME_Relative timeout;
275 GNUNET_HashCode name_hash;
276 GNUNET_HashCode lookup_key;
278 GNUNET_CRYPTO_hash(name, strlen(name), &name_hash);
279 GNUNET_CRYPTO_hash_xor(&name_hash, query->authority, &lookup_key);
281 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20);
283 //FIXME how long to wait for results?
284 GNUNET_DHT_get_start(dht_handle, timeout,
285 GNUNET_BLOCK_TYPE_TEST, //FIXME todo
287 5, //Replication level FIXME
289 &query->type, //xquery
291 &process_name_dht_result,
298 resolve_name(struct GNUNET_GNS_PendingQuery *query, GNUNET_HashCode *zone);
301 * This is a callback function that should give us only PKEY
302 * records. Used to query the namestore for the authority (PKEY)
305 * @param cls the pending query
306 * @param zone our zone hash
307 * @param name the name for which we need an authority
308 * @param record_type the type of record (PKEY)
309 * @param expiration expiration date of the record
310 * @param flags namestore record flags
311 * @param sig_loc the location of the record in the signature tree
312 * @param size the size of the record
313 * @param data the record data
316 process_authority_lookup(void* cls, const GNUNET_HashCode *zone,
317 const char *name, uint32_t record_type,
318 struct GNUNET_TIME_Absolute expiration,
319 enum GNUNET_NAMESTORE_RecordFlags flags,
320 const struct GNUNET_NAMESTORE_SignatureLocation *sig_loc,
321 size_t size, const void *data)
323 struct GNUNET_GNS_PendingQuery *query;
325 query = (struct GNUNET_GNS_PendingQuery *)cls;
328 * No authority found in namestore.
332 if (query->authority_found)
334 query->authority_found = 0;
335 resolve_name(query, query->authority);
340 * We did not find an authority in the namestore
341 * _IF_ the current authoritative zone is us.
343 * _ELSE_ we cannot still check the dht
345 if (GNUNET_CRYPTO_hash_cmp(zone, &zone_hash))
347 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "NX record\n");
348 //FIXME return NX answer
352 resolve_authority_dht(query, name);
357 * We found an authority that may be able to help us
360 query->authority_found = 1;
361 GNUNET_HashCode *key = (GNUNET_HashCode*) data; //FIXME i assume this works
362 query->authority = key;
368 * Reply to client with the result from our lookup.
370 * @param answer the pending query used in the lookup
373 reply_to_dns(struct GNUNET_GNS_PendingQuery *answer)
375 struct GNUNET_GNS_QueryRecordList *i;
376 struct GNUNET_DNSPARSER_Packet *packet;
377 struct GNUNET_DNSPARSER_Flags dnsflags;
383 packet = GNUNET_malloc(sizeof(struct GNUNET_DNSPARSER_Packet));
385 GNUNET_malloc(sizeof(struct GNUNET_DNSPARSER_Record) * answer->num_records);
387 len = sizeof(struct GNUNET_DNSPARSER_Record*);
389 for (i=answer->records_head; i != NULL; i=i->next)
391 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
392 "Adding %s to DNS response\n", i->record->name);
393 memcpy(&packet->answers[j],
395 sizeof (struct GNUNET_DNSPARSER_Record));
396 GNUNET_free(i->record);
399 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "after memcpy\n");
400 /* FIXME how to handle auth, additional etc */
401 packet->num_answers = answer->num_records;
402 packet->num_authority_records = answer->num_authority_records;
404 dnsflags.authoritative_answer = 1;
405 dnsflags.opcode = GNUNET_DNSPARSER_OPCODE_QUERY;
406 dnsflags.return_code = GNUNET_DNSPARSER_RETURN_CODE_NO_ERROR; //not sure
407 dnsflags.query_or_response = 1;
408 packet->flags = dnsflags;
410 packet->id = answer->id;
412 //FIXME this is silently discarded
413 ret = GNUNET_DNSPARSER_pack (packet,
414 1024, /* FIXME magic from dns redirector */
417 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
418 "Built DNS response! (ret=%d)\n", ret);
419 if (ret == GNUNET_OK)
421 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
422 "Answering DNS request\n");
423 //GNUNET_DNS_request_answer(answer->request_handle,
427 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Answered DNS request\n");
428 //FIXME return code, free datastructures
432 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
433 "Error building DNS response! (ret=%d)", ret);
439 * Namestore calls this function if we have an entry for this name.
440 * (or data=null to indicate the lookup has finished)
442 * @param cls the pending query
443 * @param zone the zone of the lookup
444 * @param name the name looked up
445 * @param record_type the record type
446 * @param expiration lifetime of the record
447 * @param flags record flags
448 * @param sig_loc location of the record in the signature tree
449 * @param size the size of the record
450 * @param data the record data
453 process_authoritative_result(void* cls, const GNUNET_HashCode *zone,
454 const char *name, uint32_t record_type,
455 struct GNUNET_TIME_Absolute expiration,
456 enum GNUNET_NAMESTORE_RecordFlags flags,
457 const struct GNUNET_NAMESTORE_SignatureLocation *sig_loc,
458 size_t size, const void *data)
460 struct GNUNET_GNS_PendingQuery *query;
461 struct GNUNET_GNS_QueryRecordList *qrecord;
462 struct GNUNET_DNSPARSER_Record *record;
463 query = (struct GNUNET_GNS_PendingQuery *) cls;
471 * Do we have what we need to answer?
472 * If not -> DHT Phase
473 * if full_name == next_name and not anwered we cannot resolve
475 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
476 "Namestore lookup terminated. (answered=%d)", query->answered);
484 * if this is not our zone we cannot rely on the namestore to be
485 * complete. -> Query DHT
487 if (!GNUNET_CRYPTO_hash_cmp(zone, &zone_hash))
490 resolve_name_dht(query, name);
495 * Our zone and no result? Cannot resolve TT
496 * FIXME modify query to say NX
506 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
507 "Processing additional result for %s from namestore\n", name);
509 qrecord = GNUNET_malloc(sizeof(struct GNUNET_GNS_QueryRecordList));
510 record = GNUNET_malloc(sizeof(struct GNUNET_DNSPARSER_Record));
511 qrecord->record = record;
513 record->name = (char*)query->original_name;
516 * FIXME for gns records this requires the dnsparser to be modified!
517 * or use RAW. But RAW data need serialization!
518 * maybe store record data appropriately in namestore to avoid a
519 * huge switch statement?
521 if (record_type == GNUNET_DNSPARSER_TYPE_A)
523 record->data.raw.data = (char*)data;
524 record->data.raw.data_len = size;
526 record->expiration_time = expiration;
527 record->type = record_type;
528 record->class = GNUNET_DNSPARSER_CLASS_INTERNET; /* srsly? */
530 //FIXME authoritative answer if we find a result in namestore
531 if (flags == GNUNET_NAMESTORE_RF_AUTHORITY)
533 //query->num_authority_records++;
537 * This seems to take into account that the result could
538 * be different in name and or record type...
539 * but to me this does not make sense
541 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Found answer to query!\n");
544 query->num_records++;
547 * FIXME watch for leaks
548 * properly free pendingquery when the time comes
550 GNUNET_CONTAINER_DLL_insert(query->records_head,
557 * Determine if this name is canonical.
559 * a.b.gnunet = not canonical
562 * @param name the name to test
563 * @return 1 if canonical
566 is_canonical(char* name)
568 uint32_t len = strlen(name);
571 for (i=0; i<len; i++)
573 if (*(name+i) == '.')
580 * Move one level up in the domain hierarchy and return the
581 * passed top level domain.
582 * FIXME this needs a better name
584 * @param name the domain
587 char* move_up(char* name)
591 if (is_canonical(name))
594 for (len = strlen(name); len > 0; len--)
596 if (*(name+len) == '.')
603 name[len] = '\0'; //terminate string
610 * The first phase of resolution.
611 * First check if the name is canonical.
612 * If it is then try to resolve directly.
613 * If not then first have to resolve the authoritative entities.
615 * @param query the pending lookup
616 * @param zone the zone we are currently resolving in
619 resolve_name(struct GNUNET_GNS_PendingQuery *query, GNUNET_HashCode *zone)
621 if (is_canonical(query->name))
623 //We only need to check this zone's ns
624 GNUNET_NAMESTORE_lookup_name(namestore_handle,
628 &process_authoritative_result,
633 //We have to resolve the authoritative entity
634 char *new_authority = move_up(query->name);
635 GNUNET_NAMESTORE_lookup_name(namestore_handle,
638 GNUNET_GNS_RECORD_PKEY,
639 &process_authority_lookup,
645 * Entry point for name resolution
646 * Lookup local namestore of our zone.
648 * Setup a new query and try to resolve
650 * @param rh the request handle of the DNS request from a client
651 * @param name the name to look up
652 * @param id the id of the dns request (for the reply)
653 * @param type the record type to look for
656 start_resolution(struct GNUNET_DNS_RequestHandle *rh,
657 char* name, uint16_t id, uint16_t type)
659 struct GNUNET_GNS_PendingQuery *query;
661 //FIXME remove .gnunet here from name
662 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "This is .gnunet (%s)!\n", name);
663 query = GNUNET_malloc(sizeof (struct GNUNET_GNS_PendingQuery));
665 query->original_name = name; //Full name of original query
667 //FIXME do not forget to free!!
668 query->name = GNUNET_malloc(strlen(name)-strlen(gnunet_tld) + 1);
669 memset(query->name, 0, strlen(name)-strlen(gnunet_tld) + 1);
670 memcpy(query->name, name, strlen(name)-strlen(gnunet_tld));
673 query->request_handle = rh;
675 //Start resolution in our zone
676 resolve_name(query, &zone_hash);
680 * The DNS request handler
681 * Called for every incoming DNS request.
684 * @param rh request handle to user for reply
685 * @param request_length number of bytes in request
686 * @param request udp payload of the DNS request
689 handle_dns_request(void *cls,
690 struct GNUNET_DNS_RequestHandle *rh,
691 size_t request_length,
694 struct GNUNET_DNSPARSER_Packet *p;
698 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Hijacked a DNS request...processing\n");
699 p = GNUNET_DNSPARSER_parse (request, request_length);
703 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
704 "Received malformed DNS packet, leaving it untouched\n");
705 GNUNET_DNS_request_forward (rh);
710 * Check tld and decide if we or
711 * legacy dns is responsible
713 * FIXME now in theory there could be more than 1 query in the request
714 * but if this is case we get into trouble:
715 * either we query the GNS or the DNS. We cannot do both!
716 * So I suggest to either only allow a single query per request or
717 * only allow GNS or DNS requests.
718 * The way it is implemented here now is buggy and will lead to erratic
719 * behaviour (if multiple queries are present).
721 for (i=0;i<p->num_queries;i++)
723 tldoffset = p->queries[i].name + strlen(p->queries[i].name);
725 while ((*tldoffset) != '.')
728 if (0 == strcmp(tldoffset, gnunet_tld))
730 start_resolution(rh, p->queries[i].name, p->id, p->queries[i].type);
735 * This request does not concern us. Forward to real DNS.
737 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
738 "Request for %s is forwarded to DNS\n", p->queries[i].name);
739 GNUNET_DNS_request_forward (rh);
745 * test function that stores some data in the namestore
748 put_some_records(void)
750 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Populating namestore\n");
751 /* put a few records into namestore */
752 char* ipA = "1.2.3.4";
753 char* ipB = "5.6.7.8";
754 struct in_addr *alice = GNUNET_malloc(sizeof(struct in_addr));
755 struct in_addr *bob = GNUNET_malloc(sizeof(struct in_addr));
756 GNUNET_assert(1 == inet_pton (AF_INET, ipA, alice));
757 GNUNET_assert(1 == inet_pton (AF_INET, ipB, bob));
758 GNUNET_NAMESTORE_record_put (namestore_handle,
761 GNUNET_GNS_RECORD_TYPE_A,
762 GNUNET_TIME_absolute_get_forever(),
763 GNUNET_NAMESTORE_RF_AUTHORITY,
765 sizeof(struct in_addr),
769 GNUNET_NAMESTORE_record_put (namestore_handle,
772 GNUNET_GNS_RECORD_TYPE_A,
773 GNUNET_TIME_absolute_get_forever(),
774 GNUNET_NAMESTORE_RF_AUTHORITY,
776 sizeof(struct in_addr),
782 //Prototype... needed in put function
784 update_zone_dht(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
787 * Function used to put all records successively into the DHT.
788 * FIXME also serializes records. maybe do this somewhere else...
789 * FIXME don't store private records (maybe zone transfer does this)
791 * @param cls the closure (NULL)
792 * @param zone our root zone hash
793 * @param name the name of the record
794 * @param record_type the type of the record
795 * @param expiration lifetime of the record
796 * @param flags flags of the record
797 * @param sig_loc location of record in signature tree
798 * @param size size of the record
799 * @param record_data the record data
802 put_gns_record(void *cls, const GNUNET_HashCode *zone, const char *name,
803 uint32_t record_type, struct GNUNET_TIME_Absolute expiration,
804 enum GNUNET_NAMESTORE_RecordFlags flags,
805 const struct GNUNET_NAMESTORE_SignatureLocation *sig_loc,
806 size_t size, const void *record_data)
808 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Putting a record into the DHT\n");
809 struct GNUNET_TIME_Relative timeout;
813 struct GNUNET_TIME_AbsoluteNBO exp_nbo;
814 exp_nbo = GNUNET_TIME_absolute_hton (expiration);
815 uint32_t namelen = htonl(strlen(name));
816 uint16_t flags_nbo = htons(flags);
817 uint64_t offset = GNUNET_htonll(sig_loc->offset);
818 uint32_t depth = htonl(sig_loc->depth);
819 uint32_t revision = htonl(sig_loc->revision);
820 GNUNET_HashCode name_hash;
821 GNUNET_HashCode xor_hash;
824 * I guess this can be done prettier
825 * FIXME extract into function, maybe even into different file
827 size_t record_len = sizeof(size_t) + sizeof(uint32_t) +
829 sizeof(struct GNUNET_NAMESTORE_SignatureLocation) +
830 sizeof(uint32_t) + strlen(name) + size;
832 record_type = htonl(record_type);
834 data = GNUNET_malloc(record_len);
838 memcpy(data_ptr, &namelen, sizeof(size_t));
839 data_ptr += sizeof(size_t);
841 memcpy(data_ptr, name, namelen);
844 memcpy(data_ptr, &record_type, sizeof(uint32_t));
845 data_ptr += sizeof(uint32_t);
847 memcpy(data_ptr, &exp_nbo, sizeof(struct GNUNET_TIME_AbsoluteNBO));
848 data_ptr += sizeof(struct GNUNET_TIME_AbsoluteNBO);
850 memcpy(data_ptr, &flags_nbo, sizeof(uint16_t));
851 data_ptr += sizeof(uint16_t);
853 memcpy(data_ptr, &offset, sizeof(uint64_t));
854 data_ptr += sizeof(uint64_t);
856 memcpy(data_ptr, &depth, sizeof(uint32_t));
857 data_ptr += sizeof(uint32_t);
859 memcpy(data_ptr, &revision, sizeof(uint32_t));
860 data_ptr += sizeof(uint32_t);
862 memcpy(data_ptr, &size, sizeof(uint32_t));
863 data_ptr += sizeof(uint32_t);
866 * FIXME note that this only works with raw data in nbo
867 * write helper function that converts properly and returns buffer
869 memcpy(data_ptr, record_data, size);
871 /*Doing this made me sad...*/
874 * FIXME magic number 20 move to config file
876 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20);
878 GNUNET_CRYPTO_hash(name, strlen(name), &name_hash);
879 GNUNET_CRYPTO_hash_xor(&zone_hash, &name_hash, &xor_hash);
880 GNUNET_DHT_put (dht_handle, &xor_hash,
881 5, //replication level
883 GNUNET_BLOCK_TYPE_TEST, //FIXME todo block plugin
886 expiration, //FIXME from record makes sense? is absolute?
888 NULL, //FIXME continuation needed? success check? yes ofc
889 NULL); //cls for cont
892 * Reschedule periodic put
894 GNUNET_SCHEDULER_add_delayed (dht_update_interval,
901 * Periodically iterate over our zone and store everything in dht
904 * @param tc task context
907 update_zone_dht(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
909 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Update zone!\n");
910 GNUNET_NAMESTORE_zone_transfer (namestore_handle, &zone_hash,
916 * Process GNS requests.
919 * @param server the initialized server
920 * @param c configuration to use
923 run (void *cls, struct GNUNET_SERVER_Handle *server,
924 const struct GNUNET_CONFIGURATION_Handle *c)
927 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Init GNS\n");
928 zone_key = GNUNET_CRYPTO_rsa_key_create ();
930 GNUNET_CRYPTO_hash(zone_key, GNUNET_CRYPTO_RSA_KEY_LENGTH,//FIXME is this ok?
932 nc = GNUNET_SERVER_notification_context_create (server, 1);
934 /* FIXME - do some config parsing
935 * - Maybe only hijack dns if option is set (HIJACK_DNS=1)
938 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
941 * Do gnunet dns init here
943 dns_handle = GNUNET_DNS_connect(c,
944 GNUNET_DNS_FLAG_PRE_RESOLUTION,
945 &handle_dns_request, /* rh */
948 if (NULL == dns_handle)
950 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
951 "Failed to connect to the dnsservice!\n");
955 * handle to our local namestore
957 namestore_handle = GNUNET_NAMESTORE_connect(c);
959 if (NULL == namestore_handle)
961 //FIXME do error handling;
962 GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
963 "Failed to connect to the namestore!\n");
969 dht_handle = GNUNET_DHT_connect(c, 1); //FIXME get ht_len from cfg
971 if (NULL == dht_handle)
973 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Could not connect to DHT!\n");
976 put_some_records(); //FIXME for testing
979 * Schedule periodic put
982 dht_update_interval = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS,
983 60); //FIXME from cfg
984 GNUNET_SCHEDULER_add_delayed (dht_update_interval,
987 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "GNS Init done!\n");
993 * The main function for the GNS service.
995 * @param argc number of arguments from the command line
996 * @param argv command line arguments
997 * @return 0 ok, 1 on error
1000 main (int argc, char *const *argv)
1006 GNUNET_SERVICE_run (argc, argv, "gns", GNUNET_SERVICE_OPTION_NONE, &run,
1011 /* end of gnunet-service-gns.c */