2 This file is part of GNUnet
3 (C) 2012 Christian Grothoff (and other contributing authors)
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13 General Public License for more details.
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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 GNUNET_GNS_RECORD_PLACE = GNUNET_NAMESTORE_TYPE_PLACE
154 * Initialize the connection with the GNS service.
156 * @param cfg configuration to use
158 * @return handle to the GNS service, or NULL on error
160 struct GNUNET_GNS_Handle *
161 GNUNET_GNS_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
165 * Shutdown connection with the GNS service.
167 * @param handle connection to shut down
170 GNUNET_GNS_disconnect (struct GNUNET_GNS_Handle *handle);
173 /* *************** Standard API: lookup ******************* */
176 * Iterator called on obtained result for a GNS
180 * @param rd_count number of records
181 * @param rd the records in reply
183 typedef void (*GNUNET_GNS_LookupResultProcessor) (void *cls,
185 const struct GNUNET_NAMESTORE_RecordData *rd);
190 * Perform an asynchronous lookup operation on the GNS
191 * in the default zone.
193 * @param handle handle to the GNS service
194 * @param name the name to look up
195 * @param type the GNUNET_GNS_RecordType to look for
196 * @param only_cached GNUNET_NO to only check locally not DHT for performance
197 * @param shorten_key the private key of the shorten zone (can be NULL)
198 * @param proc function to call on result
199 * @param proc_cls closure for processor
201 * @return handle to the queued request
203 struct GNUNET_GNS_LookupRequest*
204 GNUNET_GNS_lookup (struct GNUNET_GNS_Handle *handle,
206 enum GNUNET_GNS_RecordType type,
208 struct GNUNET_CRYPTO_EccPrivateKey *shorten_key,
209 GNUNET_GNS_LookupResultProcessor proc,
214 * Perform an asynchronous lookup operation on the GNS
215 * in the zone specified by 'zone'.
217 * @param handle handle to the GNS service
218 * @param name the name to look up
219 * @param zone the zone to start the resolution in
220 * @param type the GNUNET_GNS_RecordType to look for
221 * @param only_cached GNUNET_YES to only check locally not DHT for performance
222 * @param shorten_key the private key of the shorten zone (can be NULL)
223 * @param proc function to call on result
224 * @param proc_cls closure for processor
226 * @return handle to the queued request
228 struct GNUNET_GNS_LookupRequest*
229 GNUNET_GNS_lookup_zone (struct GNUNET_GNS_Handle *handle,
231 struct GNUNET_CRYPTO_ShortHashCode *zone,
232 enum GNUNET_GNS_RecordType type,
234 struct GNUNET_CRYPTO_EccPrivateKey *shorten_key,
235 GNUNET_GNS_LookupResultProcessor proc,
240 * Cancel pending lookup request
242 * @param lr the lookup request to cancel
245 GNUNET_GNS_cancel_lookup_request (struct GNUNET_GNS_LookupRequest *lr);
247 /* *************** Standard API: shorten ******************* */
251 * Processor called on for a name shortening result
255 * @param short_name the shortened name or NULL if no result / error
257 typedef void (*GNUNET_GNS_ShortenResultProcessor) (void *cls,
258 const char* short_name);
262 * Perform a name shortening operation on the GNS.
264 * @param handle handle to the GNS service
265 * @param name the name to look up
266 * @param private_zone the public zone of the private zone
267 * @param shorten_zone the public zone of the shorten zone
268 * @param proc function to call on result
269 * @param proc_cls closure for processor
270 * @return handle to the operation
272 struct GNUNET_GNS_ShortenRequest*
273 GNUNET_GNS_shorten (struct GNUNET_GNS_Handle *handle,
275 struct GNUNET_CRYPTO_ShortHashCode *private_zone,
276 struct GNUNET_CRYPTO_ShortHashCode *shorten_zone,
277 GNUNET_GNS_ShortenResultProcessor proc,
282 * Perform a name shortening operation on the GNS.
284 * @param handle handle to the GNS service
285 * @param name the name to look up
286 * @param private_zone the public zone of the private zone
287 * @param shorten_zone the public zone of the shorten zone
288 * @param zone the zone to start the resolution in
289 * @param proc function to call on result
290 * @param proc_cls closure for processor
291 * @return handle to the operation
293 struct GNUNET_GNS_ShortenRequest*
294 GNUNET_GNS_shorten_zone (struct GNUNET_GNS_Handle *handle,
296 struct GNUNET_CRYPTO_ShortHashCode *private_zone,
297 struct GNUNET_CRYPTO_ShortHashCode *shorten_zone,
298 struct GNUNET_CRYPTO_ShortHashCode *zone,
299 GNUNET_GNS_ShortenResultProcessor proc,
304 * Cancel pending shorten request
306 * @param sr the lookup request to cancel
309 GNUNET_GNS_cancel_shorten_request (struct GNUNET_GNS_ShortenRequest *sr);
312 /* *************** Standard API: get authority ******************* */
316 * Processor called on for a name shortening result
320 * @param auth_name the name of the auhtority or NULL
322 typedef void (*GNUNET_GNS_GetAuthResultProcessor) (void *cls,
323 const char* short_name);
327 * Perform an authority lookup for a given name.
329 * @param handle handle to the GNS service
330 * @param name the name to look up authority for
331 * @param proc function to call on result
332 * @param proc_cls closure for processor
333 * @return handle to the operation
335 struct GNUNET_GNS_GetAuthRequest*
336 GNUNET_GNS_get_authority (struct GNUNET_GNS_Handle *handle,
338 GNUNET_GNS_GetAuthResultProcessor proc,
343 * Cancel pending get auth request
345 * @param gar the lookup request to cancel
348 GNUNET_GNS_cancel_get_auth_request (struct GNUNET_GNS_GetAuthRequest *gar);
350 #if 0 /* keep Emacsens' auto-indent happy */
359 /* gnunet_gns_service.h */