2 This file is part of GNUnet
3 (C) 2012 Christian Grothoff (and other contributing authors)
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22 * @file include/gnunet_gns_service.h
23 * @brief API to the GNS service
24 * @author Martin Schanzenbach
26 #ifndef GNUNET_GNS_SERVICE_H
27 #define GNUNET_GNS_SERVICE_H
29 #include "gnunet_util_lib.h"
30 #include "gnunet_dnsparser_lib.h"
31 #include "gnunet_namestore_service.h"
36 #if 0 /* keep Emacsens' auto-indent happy */
43 * String we use to indicate the local master zone or a
44 * root entry in the current zone.
46 #define GNUNET_GNS_MASTERZONE_STR "+"
49 * Connection to the GNS service.
51 struct GNUNET_GNS_Handle;
54 * Handle to control a lookup operation.
56 struct GNUNET_GNS_LookupRequest;
59 * Handle to control a shorten operation.
61 struct GNUNET_GNS_ShortenRequest;
64 * Handle to control a get authority operation
66 struct GNUNET_GNS_GetAuthRequest;
70 * Based on GNUNET_DNSPARSER_TYPEs (standard DNS)
72 enum GNUNET_GNS_RecordType
77 GNUNET_GNS_RECORD_A = GNUNET_DNSPARSER_TYPE_A,
82 GNUNET_GNS_RECORD_NS = GNUNET_DNSPARSER_TYPE_NS,
87 GNUNET_GNS_RECORD_CNAME = GNUNET_DNSPARSER_TYPE_CNAME,
92 GNUNET_GNS_RECORD_SOA = GNUNET_DNSPARSER_TYPE_SOA,
97 GNUNET_GNS_RECORD_SRV = GNUNET_DNSPARSER_TYPE_SRV,
102 GNUNET_GNS_RECORD_PTR = GNUNET_DNSPARSER_TYPE_PTR,
105 * A 'uint16_t' and a 'char *'
107 GNUNET_GNS_RECORD_MX = GNUNET_DNSPARSER_TYPE_MX,
112 GNUNET_GNS_RECORD_TXT = GNUNET_DNSPARSER_TYPE_TXT,
115 * A 'struct in6_addr'
117 GNUNET_GNS_RECORD_AAAA = GNUNET_DNSPARSER_TYPE_AAAA,
121 * A 'struct GNUNET_CRYPTO_ShortHashCode'
123 GNUNET_GNS_RECORD_PKEY = GNUNET_NAMESTORE_TYPE_PKEY,
128 GNUNET_GNS_RECORD_PSEU = GNUNET_NAMESTORE_TYPE_PSEU,
129 GNUNET_GNS_RECORD_ANY = GNUNET_NAMESTORE_TYPE_ANY,
134 GNUNET_GNS_RECORD_LEHO = GNUNET_NAMESTORE_TYPE_LEHO,
137 * A 'struct vpn_data'
139 GNUNET_GNS_RECORD_VPN = GNUNET_NAMESTORE_TYPE_VPN,
142 * Revocation, no data.
144 GNUNET_GNS_RECORD_REV = GNUNET_NAMESTORE_TYPE_REV
149 * Initialize the connection with the GNS service.
151 * @param cfg configuration to use
153 * @return handle to the GNS service, or NULL on error
155 struct GNUNET_GNS_Handle *
156 GNUNET_GNS_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
160 * Shutdown connection with the GNS service.
162 * @param handle connection to shut down
165 GNUNET_GNS_disconnect (struct GNUNET_GNS_Handle *handle);
168 /* *************** Standard API: lookup ******************* */
171 * Iterator called on obtained result for a GNS
175 * @param rd_count number of records
176 * @param rd the records in reply
178 typedef void (*GNUNET_GNS_LookupResultProcessor) (void *cls,
180 const struct GNUNET_NAMESTORE_RecordData *rd);
185 * Perform an asynchronous lookup operation on the GNS
186 * in the default zone.
188 * @param handle handle to the GNS service
189 * @param name the name to look up
190 * @param type the GNUNET_GNS_RecordType to look for
191 * @param only_cached GNUNET_NO to only check locally not DHT for performance
192 * @param shorten_key the private key of the shorten zone (can be NULL)
193 * @param proc function to call on result
194 * @param proc_cls closure for processor
196 * @return handle to the queued request
198 struct GNUNET_GNS_LookupRequest*
199 GNUNET_GNS_lookup (struct GNUNET_GNS_Handle *handle,
201 enum GNUNET_GNS_RecordType type,
203 struct GNUNET_CRYPTO_EccPrivateKey *shorten_key,
204 GNUNET_GNS_LookupResultProcessor proc,
209 * Perform an asynchronous lookup operation on the GNS
210 * in the zone specified by 'zone'.
212 * @param handle handle to the GNS service
213 * @param name the name to look up
214 * @param zone the zone to start the resolution in
215 * @param type the GNUNET_GNS_RecordType to look for
216 * @param only_cached GNUNET_YES to only check locally not DHT for performance
217 * @param shorten_key the private key of the shorten zone (can be NULL)
218 * @param proc function to call on result
219 * @param proc_cls closure for processor
221 * @return handle to the queued request
223 struct GNUNET_GNS_LookupRequest*
224 GNUNET_GNS_lookup_zone (struct GNUNET_GNS_Handle *handle,
226 struct GNUNET_CRYPTO_ShortHashCode *zone,
227 enum GNUNET_GNS_RecordType type,
229 struct GNUNET_CRYPTO_EccPrivateKey *shorten_key,
230 GNUNET_GNS_LookupResultProcessor proc,
235 * Cancel pending lookup request
237 * @param lr the lookup request to cancel
240 GNUNET_GNS_cancel_lookup_request (struct GNUNET_GNS_LookupRequest *lr);
242 /* *************** Standard API: shorten ******************* */
246 * Processor called on for a name shortening result
250 * @param short_name the shortened name or NULL if no result / error
252 typedef void (*GNUNET_GNS_ShortenResultProcessor) (void *cls,
253 const char* short_name);
257 * Perform a name shortening operation on the GNS.
259 * @param handle handle to the GNS service
260 * @param name the name to look up
261 * @param private_zone the public zone of the private zone
262 * @param shorten_zone the public zone of the shorten zone
263 * @param proc function to call on result
264 * @param proc_cls closure for processor
265 * @return handle to the operation
267 struct GNUNET_GNS_ShortenRequest*
268 GNUNET_GNS_shorten (struct GNUNET_GNS_Handle *handle,
270 struct GNUNET_CRYPTO_ShortHashCode *private_zone,
271 struct GNUNET_CRYPTO_ShortHashCode *shorten_zone,
272 GNUNET_GNS_ShortenResultProcessor proc,
277 * Perform a name shortening operation on the GNS.
279 * @param handle handle to the GNS service
280 * @param name the name to look up
281 * @param private_zone the public zone of the private zone
282 * @param shorten_zone the public zone of the shorten zone
283 * @param zone the zone to start the resolution in
284 * @param proc function to call on result
285 * @param proc_cls closure for processor
286 * @return handle to the operation
288 struct GNUNET_GNS_ShortenRequest*
289 GNUNET_GNS_shorten_zone (struct GNUNET_GNS_Handle *handle,
291 struct GNUNET_CRYPTO_ShortHashCode *private_zone,
292 struct GNUNET_CRYPTO_ShortHashCode *shorten_zone,
293 struct GNUNET_CRYPTO_ShortHashCode *zone,
294 GNUNET_GNS_ShortenResultProcessor proc,
299 * Cancel pending shorten request
301 * @param sr the lookup request to cancel
304 GNUNET_GNS_cancel_shorten_request (struct GNUNET_GNS_ShortenRequest *sr);
307 /* *************** Standard API: get authority ******************* */
311 * Processor called on for a name shortening result
315 * @param auth_name the name of the auhtority or NULL
317 typedef void (*GNUNET_GNS_GetAuthResultProcessor) (void *cls,
318 const char* short_name);
322 * Perform an authority lookup for a given name.
324 * @param handle handle to the GNS service
325 * @param name the name to look up authority for
326 * @param proc function to call on result
327 * @param proc_cls closure for processor
328 * @return handle to the operation
330 struct GNUNET_GNS_GetAuthRequest*
331 GNUNET_GNS_get_authority (struct GNUNET_GNS_Handle *handle,
333 GNUNET_GNS_GetAuthResultProcessor proc,
338 * Cancel pending get auth request
340 * @param gar the lookup request to cancel
343 GNUNET_GNS_cancel_get_auth_request (struct GNUNET_GNS_GetAuthRequest *gar);
345 #if 0 /* keep Emacsens' auto-indent happy */
354 /* gnunet_gns_service.h */