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22 * @file conversation/plugin_gnsrecord_conversation.c
23 * @brief gnsrecord plugin to provide the API for fundamental GNS records
24 * This includes the VPN record because GNS resolution
25 * is expected to understand VPN records and (if needed)
26 * map the result to A/AAAA.
27 * @author Christian Grothoff
31 #include "gnunet_util_lib.h"
32 #include "gnunet_gnsrecord_lib.h"
33 #include "gnunet_conversation_service.h"
34 #include "gnunet_gnsrecord_plugin.h"
38 * Convert the 'value' of a record to a string.
40 * @param cls closure, unused
41 * @param type type of the record
42 * @param data value in binary encoding
43 * @param data_size number of bytes in @a data
44 * @return NULL on error, otherwise human-readable representation of the value
47 conversation_value_to_string (void *cls,
56 case GNUNET_GNSRECORD_TYPE_PHONE:
58 const struct GNUNET_CONVERSATION_PhoneRecord *pr;
62 if (data_size != sizeof (struct GNUNET_CONVERSATION_PhoneRecord))
68 if (1 != ntohl (pr->version))
70 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
71 _("PHONE version %u not supported\n"),
75 pkey = GNUNET_CRYPTO_eddsa_public_key_to_string (&pr->peer.public_key);
76 s = GNUNET_STRINGS_data_to_string_alloc (&pr->line_port,
77 sizeof (struct GNUNET_HashCode));
79 GNUNET_asprintf (&ret,
94 * Convert human-readable version of a 'value' of a record to the binary
97 * @param cls closure, unused
98 * @param type type of the record
99 * @param s human-readable string
100 * @param data set to value in binary encoding (will be allocated)
101 * @param data_size set to number of bytes in @a data
102 * @return #GNUNET_OK on success
105 conversation_string_to_value (void *cls,
114 return GNUNET_SYSERR;
118 case GNUNET_GNSRECORD_TYPE_PHONE:
120 struct GNUNET_CONVERSATION_PhoneRecord *pr;
123 struct GNUNET_PeerIdentity peer;
125 if ( (NULL == (dash = strchr (s, '-'))) ||
126 (1 != sscanf (s, "%103s-", line_port)) ||
128 GNUNET_CRYPTO_eddsa_public_key_from_string (dash + 1,
132 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
133 _("Unable to parse PHONE record `%s'\n"),
135 return GNUNET_SYSERR;
137 pr = GNUNET_new (struct GNUNET_CONVERSATION_PhoneRecord);
138 pr->version = htonl (1);
139 pr->reserved = htonl (0);
141 GNUNET_STRINGS_string_to_data (line_port,
144 sizeof (struct GNUNET_HashCode)))
146 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
147 _("Unable to parse PHONE record `%s'\n"),
150 return GNUNET_SYSERR;
154 *data_size = sizeof (struct GNUNET_CONVERSATION_PhoneRecord);
158 return GNUNET_SYSERR;
164 * Mapping of record type numbers to human-readable
171 { "PHONE", GNUNET_GNSRECORD_TYPE_PHONE },
177 * Convert a type name (i.e. "AAAA") to the corresponding number.
179 * @param cls closure, unused
180 * @param gns_typename name to convert
181 * @return corresponding number, UINT32_MAX on error
184 conversation_typename_to_number (void *cls,
185 const char *gns_typename)
190 while ( (name_map[i].name != NULL) &&
191 (0 != strcasecmp (gns_typename, name_map[i].name)) )
193 return name_map[i].number;
198 * Convert a type number (i.e. 1) to the corresponding type string (i.e. "A")
200 * @param cls closure, unused
201 * @param type number of a type to convert
202 * @return corresponding typestring, NULL on error
205 conversation_number_to_typename (void *cls,
211 while ( (name_map[i].name != NULL) &&
212 (type != name_map[i].number) )
214 return name_map[i].name;
219 * Entry point for the plugin.
222 * @return the exported block API
225 libgnunet_plugin_gnsrecord_conversation_init (void *cls)
227 struct GNUNET_GNSRECORD_PluginFunctions *api;
229 api = GNUNET_new (struct GNUNET_GNSRECORD_PluginFunctions);
230 api->value_to_string = &conversation_value_to_string;
231 api->string_to_value = &conversation_string_to_value;
232 api->typename_to_number = &conversation_typename_to_number;
233 api->number_to_typename = &conversation_number_to_typename;
239 * Exit point from the plugin.
241 * @param cls the return value from #libgnunet_plugin_block_test_init
245 libgnunet_plugin_gnsrecord_conversation_done (void *cls)
247 struct GNUNET_GNSRECORD_PluginFunctions *api = cls;
253 /* end of plugin_gnsrecord_conversation.c */