/*
This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
+ (C) 2009, 2010, 2011 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
* @param peer (claimed) identity of the other peer
* @param message the message
* @param ats performance data
- * @param ats_count number of entries in ats (excluding 0-termination)
+ * @param ats_count number of entries in ats
*/
typedef void (*GNUNET_TRANSPORT_ReceiveCallback) (void *cls,
const struct
GNUNET_PeerIdentity * peer,
const struct
GNUNET_MessageHeader *
- message,
- const struct
- GNUNET_ATS_Information
- * ats, uint32_t ats_count);
+ message);
/**
*/
typedef void (*GNUNET_TRANSPORT_NotifyConnect) (void *cls,
const struct GNUNET_PeerIdentity
- * peer,
- const struct
- GNUNET_ATS_Information
- * ats, uint32_t ats_count);
+ * peer);
/**
* Function called to notify transport users that another
/**
- * Function to call with a binary format of an address
+ * Function to call with result of the try connect request.
+ *
+ *
+ * @param cls closure
+ * @param result GNUNET_OK if message was transmitted to transport service
+ * GNUNET_SYSERR if message was not transmitted to transport service
+ */
+typedef void (*GNUNET_TRANSPORT_TryConnectCallback) (void *cls,
+ const int result);
+
+
+/**
+ * Function to call with a textual representation of an address.
+ * This function will be called several times with different possible
+ * textual representations, and a last time with NULL to signal the end
+ * of the iteration.
*
* @param cls closure
- * @param address NULL on error, otherwise 0-terminated printable UTF-8 string
+ * @param address NULL on error or end of iteration,
+ * otherwise 0-terminated printable UTF-8 string
*/
-typedef void (*GNUNET_TRANSPORT_AddressLookUpCallback) (void *cls,
- const char *address);
+typedef void (*GNUNET_TRANSPORT_AddressToStringCallback) (void *cls,
+ const char *address);
/**
* Function to call with a binary format of an address
*
* @param cls closure
- * @param peer peer identity
- * @param transport transport plugin
- * @param addr address
- * @param addrlen address length
+ * @param peer peer this update is about (never NULL)
+ * @param address address, NULL for disconnect notification in monitor mode
*/
-typedef void (*GNUNET_TRANSPORT_AddressLookUpBinaryCallback) (void *cls,
- const struct
- GNUNET_PeerIdentity
- * peer,
- const char
- *transport,
- const void *addr,
- size_t addrlen);
+typedef void (*GNUNET_TRANSPORT_PeerIterateCallback) (void *cls,
+ const struct
+ GNUNET_PeerIdentity *
+ peer,
+ const struct
+ GNUNET_HELLO_Address *
+ address);
/**
* @param self our own identity (API should check that it matches
* the identity found by transport), or NULL (no check)
* @param cls closure for the callbacks
- * @param rec receive function to call
- * @param nc function to call on connect events
- * @param nd function to call on disconnect events
+ * @param rec receive function to call, or NULL
+ * @param nc function to call on connect events, or NULL
+ * @param nd function to call on disconnect events, or NULL
* @return NULL on error
*/
struct GNUNET_TRANSPORT_Handle *
GNUNET_TRANSPORT_disconnect (struct GNUNET_TRANSPORT_Handle *handle);
+/**
+ * Opaque handle for a transmission-ready request.
+ */
+struct GNUNET_TRANSPORT_TryConnectHandle;
+
+
/**
* Ask the transport service to establish a connection to
* the given peer.
*
* @param handle connection to transport service
* @param target who we should try to connect to
+ * @param cb callback to be called when request was transmitted to transport
+ * service
+ * @param cb_cls closure for the callback
+ * @return a GNUNET_TRANSPORT_TryConnectHandle handle or
+ * NULL on failure (cb will not be called)
*/
-void
+struct GNUNET_TRANSPORT_TryConnectHandle *
GNUNET_TRANSPORT_try_connect (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity *target);
+ const struct GNUNET_PeerIdentity *target,
+ GNUNET_TRANSPORT_TryConnectCallback cb,
+ void *cb_cls);
+
+
+/**
+ * Cancel the request to transport to try a connect
+ * Callback will not be called
+ *
+ * @param tch GNUNET_TRANSPORT_TryConnectHandle handle to cancel
+ */
+void
+GNUNET_TRANSPORT_try_connect_cancel (struct GNUNET_TRANSPORT_TryConnectHandle *tch);
/**
/**
- * Obtain updates on changes to the HELLO message for this peer.
+ * Checks if a neighbour is connected
+ *
+ * @param handle connection to transport service
+ * @param peer the peer to check
+ * @return GNUNET_YES or GNUNET_NO
+ *
+ */
+int
+GNUNET_TRANSPORT_check_neighbour_connected (struct GNUNET_TRANSPORT_Handle *handle,
+ const struct GNUNET_PeerIdentity *peer);
+
+
+/**
+ * Set transport metrics for a peer and a direction
+ *
+ * @param handle transport handle
+ * @param peer the peer to set the metric for
+ * @param inbound set inbound direction (GNUNET_YES or GNUNET_NO)
+ * @param outbound set outbound direction (GNUNET_YES or GNUNET_NO)
+ * @param ats the metric as ATS information
+ * @param ats_count the number of metrics
+ *
+ * Supported ATS values:
+ * GNUNET_ATS_QUALITY_NET_DELAY (value in ms)
+ * GNUNET_ATS_QUALITY_NET_DISTANCE (value in count(hops))
+ *
+ * Example
+ * To enforce a delay of 10 ms for peer p1 in sending direction use:
+ *
+ * struct GNUNET_ATS_Information ats;
+ * ats.type = ntohl (GNUNET_ATS_QUALITY_NET_DELAY);
+ * ats.value = ntohl (10);
+ * GNUNET_TRANSPORT_set_traffic_metric (th, p1, TM_SEND, &ats, 1);
+ *
+ * Note:
+ * Delay restrictions in receiving direction will be enforced with
+ * 1 message delay.
+ */
+void
+GNUNET_TRANSPORT_set_traffic_metric (struct GNUNET_TRANSPORT_Handle *handle,
+ const struct GNUNET_PeerIdentity *peer,
+ int inbound,
+ int outbound,
+ const struct GNUNET_ATS_Information *ats,
+ size_t ats_count);
+
+
+/**
+ * Obtain updates on changes to the HELLO message for this peer. The callback
+ * given in this function is never called synchronously.
*
* @param handle connection to transport service
* @param rec function to call with the HELLO
/**
* Stop receiving updates about changes to our HELLO message.
*
- * @param ghh handle returned from 'GNUNET_TRANSPORT_get_hello')
+ * @param ghh handle to cancel
*/
void
GNUNET_TRANSPORT_get_hello_cancel (struct GNUNET_TRANSPORT_GetHelloHandle *ghh);
*
* @param handle connection to transport service
* @param hello the hello message
- * @param cont continuation to call when HELLO has been sent
+ * @param cont continuation to call when HELLO has been sent,
+ * tc reason GNUNET_SCHEDULER_REASON_TIMEOUT for fail
+ * tc reasong GNUNET_SCHEDULER_REASON_READ_READY for success
* @param cls closure for continuation
+ * @return a GNUNET_TRANSPORT_OfferHelloHandle handle or NULL on failure,
+ * in case of failure cont will not be called
+ *
*/
-void
+struct GNUNET_TRANSPORT_OfferHelloHandle *
GNUNET_TRANSPORT_offer_hello (struct GNUNET_TRANSPORT_Handle *handle,
const struct GNUNET_MessageHeader *hello,
GNUNET_SCHEDULER_Task cont, void *cls);
+/**
+ * Cancel the request to transport to offer the HELLO message
+ *
+ * @param ohh the GNUNET_TRANSPORT_OfferHelloHandle to cancel
+ */
+void
+GNUNET_TRANSPORT_offer_hello_cancel (struct GNUNET_TRANSPORT_OfferHelloHandle *ohh);
+
+
/**
* Handle to cancel a pending address lookup.
*/
-struct GNUNET_TRANSPORT_AddressLookupContext;
+struct GNUNET_TRANSPORT_AddressToStringContext;
/**
*
* @param cfg configuration to use
* @param address address to convert (binary format)
- * @param addressLen number of bytes in address
* @param numeric should (IP) addresses be displayed in numeric form
* (otherwise do reverse DNS lookup)
- * @param nameTrans name of the transport to which the address belongs
* @param timeout how long is the lookup allowed to take at most
* @param aluc function to call with the results
* @param aluc_cls closure for aluc
* @return handle to cancel the operation, NULL on error
*/
-struct GNUNET_TRANSPORT_AddressLookupContext *
-GNUNET_TRANSPORT_address_lookup (const struct GNUNET_CONFIGURATION_Handle *cfg,
- const char *address, size_t addressLen,
- int numeric, const char *nameTrans,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_TRANSPORT_AddressLookUpCallback aluc,
- void *aluc_cls);
+struct GNUNET_TRANSPORT_AddressToStringContext *
+GNUNET_TRANSPORT_address_to_string (const struct GNUNET_CONFIGURATION_Handle
+ *cfg,
+ const struct GNUNET_HELLO_Address *address,
+ int numeric,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TRANSPORT_AddressToStringCallback
+ aluc, void *aluc_cls);
/**
* @param alc handle for the request to cancel
*/
void
-GNUNET_TRANSPORT_address_lookup_cancel (struct
- GNUNET_TRANSPORT_AddressLookupContext
- *alc);
-
-
-/**
- * Handle to cancel a pending address lookup.
- */
-struct GNUNET_TRANSPORT_AddressLookupContext;
+GNUNET_TRANSPORT_address_to_string_cancel (struct
+ GNUNET_TRANSPORT_AddressToStringContext
+ *alc);
/**
- * Return all the known addresses for a peer. FIXME: document better!
- * FIXME: use better name!
+ * Return all the known addresses for a specific peer or all peers.
+ * Returns continuously all address if one_shot is set to GNUNET_NO
+ *
+ * CHANGE: Returns the address(es) that we are currently using for this
+ * peer. Upon completion, the 'AddressLookUpCallback' is called one more
+ * time with 'NULL' for the address and the peer. After this, the operation must no
+ * longer be explicitly cancelled.
*
* @param cfg configuration to use
- * @param peer peer identity to look up the addresses of
+ * @param peer peer identity to look up the addresses of, CHANGE: allow NULL for all (connected) peers
+ * @param one_shot GNUNET_YES to return the current state and then end (with NULL+NULL),
+ * GNUNET_NO to monitor the set of addresses used (continuously, must be explicitly canceled, NOT implemented yet!)
* @param timeout how long is the lookup allowed to take at most
* @param peer_address_callback function to call with the results
* @param peer_address_callback_cls closure for peer_address_callback
*/
-struct GNUNET_TRANSPORT_PeerAddressLookupContext *
-GNUNET_TRANSPORT_peer_address_lookup (const struct GNUNET_CONFIGURATION_Handle
- *cfg,
- const struct GNUNET_PeerIdentity *peer,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_TRANSPORT_AddressLookUpCallback
- peer_address_callback,
- void *peer_address_callback_cls);
+struct GNUNET_TRANSPORT_PeerIterateContext *
+GNUNET_TRANSPORT_peer_get_active_addresses (const struct
+ GNUNET_CONFIGURATION_Handle *cfg,
+ const struct GNUNET_PeerIdentity
+ *peer, int one_shot,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TRANSPORT_PeerIterateCallback
+ peer_address_callback,
+ void *peer_address_callback_cls);
/**
* @param alc handle for the request to cancel
*/
void
-GNUNET_TRANSPORT_peer_address_lookup_cancel (struct
- GNUNET_TRANSPORT_PeerAddressLookupContext
- *alc);
-
-
-/**
- * Return all the known addresses. FIXME: document better!
- * FIXME: use better name! FIXME: extend API to allow cancellation!
- *
- * @param cfg configuration to use
- * @param timeout how long is the lookup allowed to take at most
- * @param peer_address_callback function to call with the results
- * @param peer_address_callback_cls closure for peer_address_callback
- */
-void
-GNUNET_TRANSPORT_address_iterate (const struct GNUNET_CONFIGURATION_Handle *cfg,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_TRANSPORT_AddressLookUpBinaryCallback
- peer_address_callback,
- void *peer_address_callback_cls);
+GNUNET_TRANSPORT_peer_get_active_addresses_cancel (struct
+ GNUNET_TRANSPORT_PeerIterateContext
+ *alc);
/**
*
* @param cls closure
* @param pid peer to approve or disapproave
- * @return GNUNET_OK if the connection is allowed
+ * @return GNUNET_OK if the connection is allowed, GNUNET_SYSERR if not
*/
typedef int (*GNUNET_TRANSPORT_BlacklistCallback) (void *cls,
const struct