/*
This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
+ (C) 2011-2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
* @file namestore/namestore.h
* @brief common internal definitions for namestore service
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#ifndef NAMESTORE_H
#define NAMESTORE_H
+/**
+ * Maximum length of any name, including 0-termination.
+ */
+#define MAX_NAME_LEN 256
+
GNUNET_NETWORK_STRUCT_BEGIN
+
/**
- * Change in blacklisting (either request or notification,
- * depending on which direction it is going).
+ * Generic namestore message with op id
*/
-struct StartMessage
+struct GNUNET_NAMESTORE_Header
{
-
/**
- * Type will be GNUNET_MESSAGE_TYPE_NAMESTORE_START
+ * header.type will be GNUNET_MESSAGE_TYPE_NAMESTORE_*
+ * header.size will be message size
*/
struct GNUNET_MessageHeader header;
+ /**
+ * Request ID in NBO
+ */
+ uint32_t r_id GNUNET_PACKED;
+};
+
+
+/**
+ * Lookup a block in the namestore
+ */
+struct LookupBlockMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_BLOCK
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * The query.
+ */
+ struct GNUNET_HashCode query GNUNET_PACKED;
+
+};
+
+
+/**
+ * Lookup response
+ */
+struct LookupBlockResponseMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_BLOCK_RESPONSE
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Expiration time
+ */
+ struct GNUNET_TIME_AbsoluteNBO expire;
+
+ /**
+ * Signature.
+ */
+ struct GNUNET_CRYPTO_EcdsaSignature signature;
+
+ /**
+ * Derived public key.
+ */
+ struct GNUNET_CRYPTO_EcdsaPublicKey derived_key;
+
+ /* followed by encrypted block data */
+};
+
+
+/**
+ * Cache a record in the namestore.
+ */
+struct BlockCacheMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_BLOCK_CACHE
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Expiration time
+ */
+ struct GNUNET_TIME_AbsoluteNBO expire;
+
+ /**
+ * Signature.
+ */
+ struct GNUNET_CRYPTO_EcdsaSignature signature;
+
+ /**
+ * Derived public key.
+ */
+ struct GNUNET_CRYPTO_EcdsaPublicKey derived_key;
+
+ /* follwed by encrypted block data */
+};
+
+
+/**
+ * Response to a request to cache a block.
+ */
+struct BlockCacheResponseMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_BLOCK_CACHE_RESPONSE
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * #GNUNET_OK on success, #GNUNET_SYSERR error
+ */
+ int32_t op_result GNUNET_PACKED;
+};
+
+
+/**
+ * Store a record to the namestore (as authority).
+ */
+struct RecordStoreMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_STORE
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Expiration time
+ */
+ struct GNUNET_TIME_AbsoluteNBO expire;
+
+ /**
+ * Name length
+ */
+ uint16_t name_len GNUNET_PACKED;
+
+ /**
+ * Length of serialized record data
+ */
+ uint16_t rd_len GNUNET_PACKED;
+
+ /**
+ * Number of records contained
+ */
+ uint16_t rd_count GNUNET_PACKED;
+
+ /**
+ * always zero (for alignment)
+ */
+ uint16_t reserved GNUNET_PACKED;
+
+ /**
+ * The private key of the authority.
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey private_key;
+
+ /* followed by:
+ * name with length name_len
+ * serialized record data with rd_count records
+ */
};
+
+
+/**
+ * Response to a record storage request.
+ */
+struct RecordStoreResponseMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_STORE_RESPONSE
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * #GNUNET_SYSERR on failure, #GNUNET_OK on success
+ */
+ int32_t op_result GNUNET_PACKED;
+};
+
+
+/**
+ * Lookup a label
+ */
+struct LabelLookupMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_LABEL_LOOKUP
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * The private key of the zone to look up in
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey zone;
+
+ /**
+ * Length of the name
+ */
+ uint16_t label_len GNUNET_PACKED;
+
+ /* followed by:
+ * name with length name_len
+ */
+};
+
+
+
+
+/**
+ * Lookup a name for a zone hash
+ */
+struct ZoneToNameMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * The private key of the zone to look up in
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey zone;
+
+ /**
+ * The public key of the target zone
+ */
+ struct GNUNET_CRYPTO_EcdsaPublicKey value_zone;
+};
+
+
+/**
+ * Respone for zone to name lookup
+ */
+struct ZoneToNameResponseMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_TO_NAME_RESPONSE
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Length of the name
+ */
+ uint16_t name_len GNUNET_PACKED;
+
+ /**
+ * Length of serialized record data
+ */
+ uint16_t rd_len GNUNET_PACKED;
+
+ /**
+ * Number of records contained
+ */
+ uint16_t rd_count GNUNET_PACKED;
+
+ /**
+ * result in NBO: #GNUNET_OK on success, #GNUNET_NO if there were no
+ * results, #GNUNET_SYSERR on error
+ */
+ int16_t res GNUNET_PACKED;
+
+ /**
+ * The private key of the zone that contained the name.
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey zone;
+
+ /* followed by:
+ * name with length name_len
+ * serialized record data with rd_count records
+ */
+
+};
+
+
+/**
+ * Record is returned from the namestore (as authority).
+ */
+struct RecordResultMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_RESULT
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Name length
+ */
+ uint16_t name_len GNUNET_PACKED;
+
+ /**
+ * Length of serialized record data
+ */
+ uint16_t rd_len GNUNET_PACKED;
+
+ /**
+ * Number of records contained
+ */
+ uint16_t rd_count GNUNET_PACKED;
+
+ /**
+ * always zero (for alignment)
+ */
+ uint16_t reserved GNUNET_PACKED;
+
+ /**
+ * The private key of the authority.
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey private_key;
+
+ /* followed by:
+ * name with length name_len
+ * serialized record data with rd_count records
+ */
+};
+
+
+/**
+ * Start monitoring a zone.
+ */
+struct ZoneMonitorStartMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_START
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Zone key.
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey zone;
+
+};
+
+
+/**
+ * Start a zone iteration for the given zone
+ */
+struct ZoneIterationStartMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_START
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+
+ /**
+ * Zone key. All zeros for "all zones".
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey zone;
+
+};
+
+
+/**
+ * Ask for next result of zone iteration for the given operation
+ */
+struct ZoneIterationNextMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_NEXT
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+};
+
+
+/**
+ * Stop zone iteration for the given operation
+ */
+struct ZoneIterationStopMessage
+{
+ /**
+ * Type will be #GNUNET_MESSAGE_TYPE_NAMESTORE_ZONE_ITERATION_STOP
+ */
+ struct GNUNET_NAMESTORE_Header gns_header;
+};
+
+
GNUNET_NETWORK_STRUCT_END
+
/* end of namestore.h */
#endif
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