*/
void *proc_cls;
- /**
- * Function to call with the blocks we get back; or NULL.
- */
- GNUNET_GNSRECORD_BlockProcessor block_proc;
-
- /**
- * Closure for @e block_proc.
- */
- void *block_proc_cls;
-
/**
* The operation id this zone iteration operation has
*/
force_reconnect (struct GNUNET_NAMESTORE_Handle *h);
-/**
- * Handle an incoming message of type
- * #GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_BLOCK_RESPONSE.
- *
- * @param qe the respective entry in the message queue
- * @param msg the message we received
- * @param size the message size
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error and we did NOT notify the client
- */
-static int
-handle_lookup_block_response (struct GNUNET_NAMESTORE_QueueEntry *qe,
- const struct LookupBlockResponseMessage *msg,
- size_t size)
-{
- struct GNUNET_GNSRECORD_Block *block;
- char buf[size + sizeof (struct GNUNET_GNSRECORD_Block)
- - sizeof (struct LookupBlockResponseMessage)];
-
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s'\n",
- "LOOKUP_BLOCK_RESPONSE");
- if (0 == GNUNET_TIME_absolute_ntoh (msg->expire).abs_value_us)
- {
- /* no match found */
- if (NULL != qe->block_proc)
- qe->block_proc (qe->block_proc_cls, NULL);
- return GNUNET_OK;
- }
-
- block = (struct GNUNET_GNSRECORD_Block *) buf;
- block->signature = msg->signature;
- block->derived_key = msg->derived_key;
- block->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_GNS_RECORD_SIGN);
- block->purpose.size = htonl (size - sizeof (struct LookupBlockResponseMessage) +
- sizeof (struct GNUNET_TIME_AbsoluteNBO) +
- sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose));
- block->expiration_time = msg->expire;
- memcpy (&block[1],
- &msg[1],
- size - sizeof (struct LookupBlockResponseMessage));
- if (GNUNET_OK !=
- GNUNET_GNSRECORD_block_verify (block))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- if (NULL != qe->block_proc)
- qe->block_proc (qe->block_proc_cls, block);
- else
- GNUNET_break (0);
- return GNUNET_OK;
-}
-
-
-/**
- * Handle an incoming message of type
- * #GNUNET_MESSAGE_TYPE_NAMESTORE_BLOCK_CACHE_RESPONSE
- *
- * @param qe the respective entry in the message queue
- * @param msg the message we received
- * @param size the message size
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error and we did NOT notify the client
- */
-static int
-handle_block_cache_response (struct GNUNET_NAMESTORE_QueueEntry *qe,
- const struct BlockCacheResponseMessage *msg,
- size_t size)
-{
- int res;
-
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s'\n",
- "BLOCK_CACHE_RESPONSE");
- res = ntohl (msg->op_result);
- /* TODO: add actual error message from namestore to response... */
- if (NULL != qe->cont)
- qe->cont (qe->cont_cls,
- res,
- (GNUNET_OK == res) ?
- NULL
- : _("Namestore failed to cache block"));
- return GNUNET_OK;
-}
-
-
/**
* Handle an incoming message of type
* #GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_STORE_RESPONSE
/* handle different message type */
switch (type)
{
- case GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_BLOCK_RESPONSE:
- if (size < sizeof (struct LookupBlockResponseMessage))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- return handle_lookup_block_response (qe, (const struct LookupBlockResponseMessage *) msg, size);
- case GNUNET_MESSAGE_TYPE_NAMESTORE_BLOCK_CACHE_RESPONSE:
- if (size != sizeof (struct BlockCacheResponseMessage))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- return handle_block_cache_response (qe, (const struct BlockCacheResponseMessage *) msg, size);
case GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_STORE_RESPONSE:
if (size != sizeof (struct RecordStoreResponseMessage))
{
}
-/**
- * Store an item in the namestore. If the item is already present,
- * it is replaced with the new record.
- *
- * @param h handle to the namestore
- * @param block block to store
- * @param cont continuation to call when done
- * @param cont_cls closure for cont
- * @return handle to abort the request
- */
-struct GNUNET_NAMESTORE_QueueEntry *
-GNUNET_NAMESTORE_block_cache (struct GNUNET_NAMESTORE_Handle *h,
- const struct GNUNET_GNSRECORD_Block *block,
- GNUNET_NAMESTORE_ContinuationWithStatus cont,
- void *cont_cls)
-{
- struct GNUNET_NAMESTORE_QueueEntry *qe;
- struct PendingMessage *pe;
- struct BlockCacheMessage *msg;
- uint32_t rid;
- size_t blen;
- size_t msg_size;
-
- GNUNET_assert (NULL != h);
- blen = ntohl (block->purpose.size)
- - sizeof (struct GNUNET_TIME_AbsoluteNBO)
- - sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose);
- rid = get_op_id (h);
- qe = GNUNET_new (struct GNUNET_NAMESTORE_QueueEntry);
- qe->nsh = h;
- qe->cont = cont;
- qe->cont_cls = cont_cls;
- qe->op_id = rid;
- GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, qe);
-
- /* setup msg */
- msg_size = sizeof (struct BlockCacheMessage) + blen;
- pe = GNUNET_malloc (sizeof (struct PendingMessage) + msg_size);
- pe->size = msg_size;
- msg = (struct BlockCacheMessage *) &pe[1];
- msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_BLOCK_CACHE);
- msg->gns_header.header.size = htons (msg_size);
- msg->gns_header.r_id = htonl (rid);
- msg->expire = block->expiration_time;
- msg->signature = block->signature;
- msg->derived_key = block->derived_key;
- memcpy (&msg[1], &block[1], blen);
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Sending `%s' message with size %u and expiration %s\n",
- "NAMESTORE_BLOCK_CACHE",
- (unsigned int) msg_size,
- GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (msg->expire)));
- GNUNET_CONTAINER_DLL_insert_tail (h->pending_head, h->pending_tail, pe);
- do_transmit (h);
- return qe;
-}
-
-
/**
* Store an item in the namestore. If the item is already present,
* it is replaced with the new record. Use an empty array to
/**
- * Get a result for a particular key from the namestore. The processor
- * will only be called once.
+ * Lookup an item in the namestore.
*
* @param h handle to the namestore
- * @param derived_hash hash of zone key combined with name to lookup
- * @param proc function to call on the matching block, or with
- * NULL if there is no matching block
- * @param proc_cls closure for proc
- * @return a handle that can be used to cancel
+ * @param pkey private key of the zone
+ * @param label name that is being mapped (at most 255 characters long)
+ * @param rm function to call with the result (with 0 records if we don't have that label)
+ * @param rm_cls closure for @a rm
+ * @return handle to abort the request
*/
struct GNUNET_NAMESTORE_QueueEntry *
-GNUNET_NAMESTORE_lookup_block (struct GNUNET_NAMESTORE_Handle *h,
- const struct GNUNET_HashCode *derived_hash,
- GNUNET_GNSRECORD_BlockProcessor proc, void *proc_cls)
+GNUNET_NAMESTORE_records_lookup (struct GNUNET_NAMESTORE_Handle *h,
+ const struct GNUNET_CRYPTO_EcdsaPrivateKey *pkey,
+ const char *label,
+ GNUNET_NAMESTORE_RecordMonitor rm,
+ void *rm_cls)
{
struct GNUNET_NAMESTORE_QueueEntry *qe;
struct PendingMessage *pe;
- struct LookupBlockMessage *msg;
+ struct LabelLookupMessage * msg;
size_t msg_size;
- uint32_t rid;
+ size_t label_len;
GNUNET_assert (NULL != h);
- GNUNET_assert (NULL != derived_hash);
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Looking for block under %s\n",
- GNUNET_h2s (derived_hash));
- rid = get_op_id(h);
+ GNUNET_assert (NULL != pkey);
+ GNUNET_assert (NULL != label);
+
+ if (1 == (label_len = strlen (label) + 1))
+ return NULL;
+
qe = GNUNET_new (struct GNUNET_NAMESTORE_QueueEntry);
qe->nsh = h;
- qe->block_proc = proc;
- qe->block_proc_cls = proc_cls;
- qe->op_id = rid;
+ qe->proc = rm;
+ qe->proc_cls = rm_cls;
+ qe->op_id = get_op_id(h);
GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, qe);
- msg_size = sizeof (struct LookupBlockMessage);
+ msg_size = sizeof (struct LabelLookupMessage) + label_len;
pe = GNUNET_malloc (sizeof (struct PendingMessage) + msg_size);
pe->size = msg_size;
- msg = (struct LookupBlockMessage *) &pe[1];
- msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_LOOKUP_BLOCK);
+ msg = (struct LabelLookupMessage *) &pe[1];
+ msg->gns_header.header.type = htons (GNUNET_MESSAGE_TYPE_NAMESTORE_LABEL_LOOKUP);
msg->gns_header.header.size = htons (msg_size);
- msg->gns_header.r_id = htonl (rid);
- msg->query = *derived_hash;
+ msg->gns_header.r_id = htonl (qe->op_id);
+ msg->zone = *pkey;
+ msg->label_len = htons(label_len);
+
+ /* transmit message */
GNUNET_CONTAINER_DLL_insert_tail (h->pending_head, h->pending_tail, pe);
do_transmit (h);
return qe;
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