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22 * @author Martin Schanzenbach
25 * API to the GNS service
27 * @defgroup gns GNS service
30 * @see [Documentation](https://gnunet.org/gns-implementation)
34 #ifndef GNUNET_GNS_SERVICE_H
35 #define GNUNET_GNS_SERVICE_H
37 #include "gnunet_util_lib.h"
38 #include "gnunet_dnsparser_lib.h"
39 #include "gnunet_namestore_service.h"
44 #if 0 /* keep Emacsens' auto-indent happy */
51 * String we use to indicate the local master zone or a
52 * root entry in the current zone.
54 * FIXME: probably should be changed to "@" and renamed
55 * (this name is confusing!)
57 #define GNUNET_GNS_MASTERZONE_STR "+"
60 * Connection to the GNS service.
62 struct GNUNET_GNS_Handle;
65 * Handle to control a lookup operation.
67 struct GNUNET_GNS_LookupRequest;
70 * Handle to control a lookup operation where the
71 * TLD is resolved to a zone as part of the lookup operation.
73 struct GNUNET_GNS_LookupWithTldRequest;
77 * Initialize the connection with the GNS service.
79 * @param cfg configuration to use
80 * @return handle to the GNS service, or NULL on error
82 struct GNUNET_GNS_Handle *
83 GNUNET_GNS_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
87 * Shutdown connection with the GNS service.
89 * @param handle connection to shut down
92 GNUNET_GNS_disconnect (struct GNUNET_GNS_Handle *handle);
96 * Iterator called on obtained result for a GNS lookup.
99 * @param rd_count number of records in @a rd
100 * @param rd the records in reply
103 (*GNUNET_GNS_LookupResultProcessor) (void *cls,
105 const struct GNUNET_GNSRECORD_Data *rd);
109 * Options for the GNS lookup.
111 enum GNUNET_GNS_LocalOptions
114 * Defaults, look in cache, then in DHT.
116 GNUNET_GNS_LO_DEFAULT = 0,
119 * Never look in the DHT, keep request to local cache.
121 GNUNET_GNS_LO_NO_DHT = 1,
124 * For the rightmost label, only look in the cache (it
125 * is our master zone), for the others, the DHT is OK.
127 GNUNET_GNS_LO_LOCAL_MASTER = 2
133 * Perform an asynchronous lookup operation on the GNS.
135 * @param handle handle to the GNS service
136 * @param name the name to look up
137 * @param zone zone to look in
138 * @param type the GNS record type to look for
139 * @param options local options for the lookup
140 * @param proc function to call on result
141 * @param proc_cls closure for @a proc
142 * @return handle to the queued request
144 struct GNUNET_GNS_LookupRequest *
145 GNUNET_GNS_lookup (struct GNUNET_GNS_Handle *handle,
147 const struct GNUNET_CRYPTO_EcdsaPublicKey *zone,
149 enum GNUNET_GNS_LocalOptions options,
150 GNUNET_GNS_LookupResultProcessor proc,
155 * Cancel pending lookup request
157 * @param lr the lookup request to cancel
160 GNUNET_GNS_lookup_cancel (struct GNUNET_GNS_LookupRequest *lr);
164 * Iterator called on obtained result for a GNS lookup
165 * where "not GNS" is a valid answer.
168 * @param gns_tld #GNUNET_YES if a GNS lookup was attempted,
169 * #GNUNET_NO if the TLD is not configured for GNS
170 * @param rd_count number of records in @a rd
171 * @param rd the records in the reply
174 (*GNUNET_GNS_LookupResultProcessor2) (void *cls,
177 const struct GNUNET_GNSRECORD_Data *rd);
181 * Perform an asynchronous lookup operation on the GNS,
182 * determining the zone using the TLD of the given name
183 * and the current configuration to resolve TLDs to zones.
185 * @param handle handle to the GNS service
186 * @param name the name to look up, including TLD
187 * @param type the record type to look up
188 * @param options local options for the lookup
189 * @param proc processor to call on result
190 * @param proc_cls closure for @a proc
191 * @return handle to the get request
193 struct GNUNET_GNS_LookupWithTldRequest*
194 GNUNET_GNS_lookup_with_tld (struct GNUNET_GNS_Handle *handle,
197 enum GNUNET_GNS_LocalOptions options,
198 GNUNET_GNS_LookupResultProcessor2 proc,
203 * Cancel pending lookup request
205 * @param ltr the lookup request to cancel
208 GNUNET_GNS_lookup_with_tld_cancel (struct GNUNET_GNS_LookupWithTldRequest *ltr);
211 #if 0 /* keep Emacsens' auto-indent happy */
220 /** @} */ /* end of group */