2 This file is part of GNUnet.
3 (C) 2009 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.
22 * @file namestore/namestore.h
23 * @brief common internal definitions for namestore service
24 * @author Matthias Wachs
30 * Maximum length of any name, including 0-termination.
32 #define MAX_NAME_LEN 256
35 * Convert a short hash to a string (for printing debug messages).
36 * This is one of the very few calls in the entire API that is
39 * @param hc the short hash code
40 * @return string form; will be overwritten by next call to GNUNET_h2s.
43 GNUNET_short_h2s (const struct GNUNET_CRYPTO_ShortHashCode * hc);
47 * Sign name and records
49 * @param key the private key
50 * @param expire block expiration
51 * @param name the name
52 * @param rd record data
53 * @param rd_count number of records
55 * @return the signature
57 struct GNUNET_CRYPTO_RsaSignature *
58 GNUNET_NAMESTORE_create_signature (const struct GNUNET_CRYPTO_RsaPrivateKey *key,
59 struct GNUNET_TIME_Absolute expire,
61 const struct GNUNET_NAMESTORE_RecordData *rd,
62 unsigned int rd_count);
66 * Compares if two records are equal
71 * @return GNUNET_YES or GNUNET_NO
74 GNUNET_NAMESTORE_records_cmp (const struct GNUNET_NAMESTORE_RecordData *a,
75 const struct GNUNET_NAMESTORE_RecordData *b);
78 GNUNET_NETWORK_STRUCT_BEGIN
80 * A GNS record serialized for network transmission.
82 * Layout is [struct GNUNET_NAMESTORE_NetworkRecord][char[data_size] data]
84 struct GNUNET_NAMESTORE_NetworkRecord
87 * Expiration time for the DNS record.
89 struct GNUNET_TIME_AbsoluteNBO expiration;
92 * Number of bytes in 'data'.
97 * Type of the GNS/DNS record.
102 * Flags for the record.
110 * Connect to namestore service. FIXME: UNNECESSARY.
116 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_START
118 struct GNUNET_MessageHeader header;
124 * Generic namestore message with op id
126 struct GNUNET_NAMESTORE_Header
129 * header.type will be GNUNET_MESSAGE_TYPE_NAMESTORE_*
130 * header.size will be message size
132 struct GNUNET_MessageHeader header;
142 * Lookup a name in the namestore
144 struct LookupNameMessage
146 struct GNUNET_NAMESTORE_Header gns_header;
151 struct GNUNET_CRYPTO_ShortHashCode zone;
154 * Requested record type
156 uint32_t record_type;
163 /* 0-terminated name here */
170 struct LookupNameResponseMessage
173 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_NAME_RESPONSE
175 struct GNUNET_NAMESTORE_Header gns_header;
180 struct GNUNET_TIME_AbsoluteNBO expire;
189 * Bytes of serialized record data
194 * Number of records contained
199 * Is the signature valid
200 * GNUNET_YES or GNUNET_NO
202 int16_t contains_sig;
205 * All zeros if 'contains_sig' is GNUNET_NO.
207 struct GNUNET_CRYPTO_RsaSignature signature;
210 * The public key for the name
212 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded public_key;
214 /* 0-terminated name and serialized record data */
215 /* rd_len bytes serialized record data */
220 * Put a record to the namestore
222 struct RecordPutMessage
225 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_RECORD_PUT
227 struct GNUNET_NAMESTORE_Header gns_header;
232 struct GNUNET_TIME_AbsoluteNBO expire;
240 * Length of serialized record data
245 * Number of records contained
250 * always zero (for alignment)
257 struct GNUNET_CRYPTO_RsaSignature signature;
262 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded public_key;
264 /* name (0-terminated) followed by "rd_count" serialized records */
270 * Put a record to the namestore response
272 struct RecordPutResponseMessage
275 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_PUT_RESPONSE
277 struct GNUNET_NAMESTORE_Header gns_header;
281 * GNUNET_SYSERR on failure
282 * GNUNET_OK on success
289 * Create a record and put it to the namestore
292 struct RecordCreateMessage
295 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE
297 struct GNUNET_NAMESTORE_Header gns_header;
299 struct GNUNET_TIME_AbsoluteNBO expire;
307 * Length of serialized record data
322 * GNUNET_CRYPTO_RsaPrivateKeyBinaryEncoded private key with length pkey_len
323 * name with length name_len
324 * serialized record data with length rd_len
330 * Create a record to the namestore response
332 struct RecordCreateResponseMessage
335 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_CREATE_RESPONSE
337 struct GNUNET_NAMESTORE_Header gns_header;
340 * name length: GNUNET_NO already exists, GNUNET_YES on success, GNUNET_SYSERR error
347 * Remove a record from the namestore
350 struct RecordRemoveMessage
353 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE
355 struct GNUNET_NAMESTORE_Header gns_header;
363 * Length of serialized rd data
368 * Number of records contained
373 * Length of private key
378 * GNUNET_CRYPTO_RsaPrivateKeyBinaryEncoded private key with length pkey_len
379 * name with length name_len
380 * serialized record data with length rd_len
386 * Removal of the record succeeded.
388 #define RECORD_REMOVE_RESULT_SUCCESS 0
391 * There are NO records for the given name.
393 #define RECORD_REMOVE_RESULT_NO_RECORDS 1
396 * The specific record that was to be removed was
399 #define RECORD_REMOVE_RESULT_RECORD_NOT_FOUND 2
402 * Internal error, failed to sign the remaining records.
405 #define RECORD_REMOVE_RESULT_FAILED_TO_SIGN 3
408 * Internal error, failed to store the updated record set
410 #define RECORD_REMOVE_RESULT_FAILED_TO_PUT_UPDATE 4
413 * Internal error, failed to remove records from database
415 #define RECORD_REMOVE_RESULT_FAILED_TO_REMOVE 5
418 * Internal error, failed to access database
420 #define RECORD_REMOVE_RESULT_FAILED_ACCESS_DATABASE 6
423 * Internal error, failed to access database
425 #define RECORD_REMOVE_RESULT_FAILED_INTERNAL_ERROR 7
429 * Remove a record from the namestore response
431 struct RecordRemoveResponseMessage
434 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_REMOVE_RESPONSE
436 struct GNUNET_NAMESTORE_Header gns_header;
439 * Result code (see RECORD_REMOVE_RESULT_*). In network byte order.
446 * Lookup a name for a zone hash
448 struct ZoneToNameMessage
451 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME
453 struct GNUNET_NAMESTORE_Header gns_header;
456 * The hash of public key of the zone to look up in
458 struct GNUNET_CRYPTO_ShortHashCode zone;
461 * The hash of the public key of the target zone
463 struct GNUNET_CRYPTO_ShortHashCode value_zone;
467 * Respone for zone to name lookup
469 struct ZoneToNameResponseMessage
472 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME_RESPONSE
474 struct GNUNET_NAMESTORE_Header gns_header;
477 * Record block expiration
479 struct GNUNET_TIME_AbsoluteNBO expire;
487 * Length of serialized record data
492 * Number of records contained
496 /* result in NBO: GNUNET_OK on success, GNUNET_NO if there were no results, GNUNET_SYSERR on error */
502 struct GNUNET_CRYPTO_RsaSignature signature;
507 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded zone_key;
514 * Start a zone iteration for the given zone
516 struct ZoneIterationStartMessage
519 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START
521 struct GNUNET_NAMESTORE_Header gns_header;
526 struct GNUNET_CRYPTO_ShortHashCode zone;
529 * Which flags must be included
531 uint16_t must_have_flags;
534 * Which flags must not be included
536 uint16_t must_not_have_flags;
541 * Ask for next result of zone iteration for the given operation
543 struct ZoneIterationNextMessage
546 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT
548 struct GNUNET_NAMESTORE_Header gns_header;
553 * Stop zone iteration for the given operation
555 struct ZoneIterationStopMessage
558 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP
560 struct GNUNET_NAMESTORE_Header gns_header;
564 * Next result of zone iteration for the given operation
565 * // FIXME: use 'struct LookupResponseMessage' instead? (identical except
566 * for having 'contains_sig' instead of 'reserved', but fully compatible otherwise).
568 struct ZoneIterationResponseMessage
571 * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_RESPONSE
573 struct GNUNET_NAMESTORE_Header gns_header;
575 struct GNUNET_TIME_AbsoluteNBO expire;
579 /* Record data length */
583 * Number of records contained
588 * always zero (for alignment)
593 * All zeros if 'contains_sig' is GNUNET_NO.
595 struct GNUNET_CRYPTO_RsaSignature signature;
600 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded public_key;
605 GNUNET_NETWORK_STRUCT_END
608 /* end of namestore.h */