/*
This file is part of GNUnet.
- (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2009-2014 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
/**
* Version number of the transport API.
*/
-#define GNUNET_TRANSPORT_VERSION 0x00000000
+#define GNUNET_TRANSPORT_VERSION 0x00000001
/**
- * Possible state of a neighbour. Initially, we are #S_NOT_CONNECTED.
+ * Possible state of a neighbour. Initially, we are #GNUNET_TRANSPORT_PS_NOT_CONNECTED.
*
- * Then, there are two main paths. If we receive a CONNECT message, we
- * first run a check against the blacklist (#S_CONNECT_RECV_BLACKLIST_INBOUND).
- * If this check is successful, we give the inbound address to ATS.
- * After the check we ask ATS for a suggestion (S_CONNECT_RECV_ATS).
- * If ATS makes a suggestion, we ALSO give that suggestion to the blacklist
- * (#S_CONNECT_RECV_BLACKLIST). Once the blacklist approves the
- * address we got from ATS, we send our CONNECT_ACK and go to
- * #S_CONNECT_RECV_ACK. If we receive a SESSION_ACK, we go to
- * #S_CONNECTED (and notify everyone about the new connection). If the
- * operation times out, we go to #S_DISCONNECT.
+ * Then, there are two main paths. If we receive a CONNECT message, we give
+ * the inbound address to ATS. After the check we ask ATS for a suggestion
+ * (#GNUNET_TRANSPORT_PS_CONNECT_RECV_ATS). If ATS makes a suggestion, we
+ * send our CONNECT_ACK and go to #GNUNET_TRANSPORT_PS_CONNECT_RECV_ACK.
+ * If we receive a SESSION_ACK, we go to #GNUNET_TRANSPORT_PS_CONNECTED
+ * (and notify everyone about the new connection). If the operation times out,
+ * we go to #GNUNET_TRANSPORT_PS_DISCONNECT.
*
* The other case is where we transmit a CONNECT message first. We
- * start with #S_INIT_ATS. If we get an address, we enter
- * #S_INIT_BLACKLIST and check the blacklist. If the blacklist is OK
- * with the connection, we actually send the CONNECT message and go to
- * state S_CONNECT_SENT. Once we receive a CONNECT_ACK, we go to
- * #S_CONNECTED (and notify everyone about the new connection and send
+ * start with #GNUNET_TRANSPORT_PS_INIT_ATS. If we get an address, we send
+ * the CONNECT message and go to state #GNUNET_TRANSPORT_PS_CONNECT_SENT.
+ * Once we receive a CONNECT_ACK, we go to #GNUNET_TRANSPORT_PS_CONNECTED
+ * (and notify everyone about the new connection and send
* back a SESSION_ACK). If the operation times out, we go to
- * #S_DISCONNECT.
+ * #GNUNET_TRANSPORT_PS_DISCONNECT.
*
* If the session is in trouble (i.e. transport-level disconnect or
- * timeout), we go to #S_RECONNECT_ATS where we ask ATS for a new
+ * timeout), we go to #GNUNET_TRANSPORT_PS_RECONNECT_ATS where we ask ATS for a new
* address (we don't notify anyone about the disconnect yet). Once we
- * have a new address, we go to #S_RECONNECT_BLACKLIST to check the new
- * address against the blacklist. If the blacklist approves, we enter
- * #S_RECONNECT_SENT and send a CONNECT message. If we receive a
- * CONNECT_ACK, we go to #S_CONNECTED and nobody noticed that we had
+ * have a new address, we enter #GNUNET_TRANSPORT_PS_RECONNECT_SENT and send a
+ * CONNECT message. If we receive a
+ * CONNECT_ACK, we go to #GNUNET_TRANSPORT_PS_CONNECTED and nobody noticed that we had
* trouble; we also send a SESSION_ACK at this time just in case. If
- * the operation times out, we go to S_DISCONNECT (and notify everyone
+ * the operation times out, we go to #GNUNET_TRANSPORT_PS_DISCONNECT (and notify everyone
* about the lost connection).
*
* If ATS decides to switch addresses while we have a normal
- * connection, we go to #S_CONNECTED_SWITCHING_BLACKLIST to check the
- * new address against the blacklist. If the blacklist approves, we
- * go to #S_CONNECTED_SWITCHING_CONNECT_SENT and send a
- * SESSION_CONNECT. If we get a SESSION_ACK back, we switch the
+ * connection, we go to #GNUNET_TRANSPORT_PS_CONNECTED_SWITCHING_CONNECT_SENT
+ * and send a SESSION_CONNECT. If we get a SESSION_ACK back, we switch the
* primary connection to the suggested alternative from ATS, go back
- * to #S_CONNECTED and send a SESSION_ACK to the other peer just to be
- * sure. If the operation times out (or the blacklist disapproves),
- * we go to #S_CONNECTED (and notify ATS that the given alternative
+ * to #GNUNET_TRANSPORT_PS_CONNECTED and send a SESSION_ACK to the other peer just to be
+ * sure. If the operation times out
+ * we go to #GNUNET_TRANSPORT_PS_CONNECTED (and notify ATS that the given alternative
* address is "invalid").
*
- * Once a session is in #S_DISCONNECT, it is cleaned up and then goes
- * to (#S_DISCONNECT_FINISHED). If we receive an explicit disconnect
- * request, we can go from any state to #S_DISCONNECT, possibly after
+ * Once a session is in #GNUNET_TRANSPORT_PS_DISCONNECT, it is cleaned up and then goes
+ * to (#GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED). If we receive an explicit disconnect
+ * request, we can go from any state to #GNUNET_TRANSPORT_PS_DISCONNECT, possibly after
* generating disconnect notifications.
*
* Note that it is quite possible that while we are in any of these
* set to 1. If our state machine allows us to send a 'CONNECT_ACK'
* (because we have an acceptable address), we send the 'CONNECT_ACK'
* and set the 'send_connect_ack' to 2. If we then receive a
- * 'SESSION_ACK', we go to #S_CONNECTED (and reset 'send_connect_ack'
+ * 'SESSION_ACK', we go to #GNUNET_TRANSPORT_PS_CONNECTED (and reset 'send_connect_ack'
* to 0).
*
*/
enum GNUNET_TRANSPORT_PeerState
{
/**
- * fresh peer or completely disconnected
+ * Fresh peer or completely disconnected
*/
- S_NOT_CONNECTED = 0,
+ GNUNET_TRANSPORT_PS_NOT_CONNECTED = 0,
/**
* Asked to initiate connection, trying to get address from ATS
*/
- S_INIT_ATS,
-
- /**
- * Asked to initiate connection, trying to get address approved
- * by blacklist.
- */
- S_INIT_BLACKLIST,
+ GNUNET_TRANSPORT_PS_INIT_ATS,
/**
* Sent CONNECT message to other peer, waiting for CONNECT_ACK
*/
- S_CONNECT_SENT,
-
- /**
- * Received a CONNECT, do a blacklist check for inbound address
- */
- S_CONNECT_RECV_BLACKLIST_INBOUND,
+ GNUNET_TRANSPORT_PS_CONNECT_SENT,
/**
* Received a CONNECT, asking ATS about address suggestions.
*/
- S_CONNECT_RECV_ATS,
+ GNUNET_TRANSPORT_PS_CONNECT_RECV_ATS,
/**
- * Received CONNECT from other peer, got an address, checking with blacklist.
- */
- S_CONNECT_RECV_BLACKLIST,
-
- /**
- * CONNECT request from other peer was SESSION_ACK'ed, waiting for
+ * CONNECT request from other peer was CONNECT_ACK'ed, waiting for
* SESSION_ACK.
*/
- S_CONNECT_RECV_ACK,
+ GNUNET_TRANSPORT_PS_CONNECT_RECV_ACK,
/**
* Got our CONNECT_ACK/SESSION_ACK, connection is up.
*/
- S_CONNECTED,
+ GNUNET_TRANSPORT_PS_CONNECTED,
/**
* Connection got into trouble, rest of the system still believes
* it to be up, but we're getting a new address from ATS.
*/
- S_RECONNECT_ATS,
-
- /**
- * Connection got into trouble, rest of the system still believes
- * it to be up; we are checking the new address against the blacklist.
- */
- S_RECONNECT_BLACKLIST,
+ GNUNET_TRANSPORT_PS_RECONNECT_ATS,
/**
* Sent CONNECT over new address (either by ATS telling us to switch
* addresses or from RECONNECT_ATS); if this fails, we need to tell
* the rest of the system about a disconnect.
*/
- S_RECONNECT_SENT,
-
- /**
- * We have some primary connection, but ATS suggested we switch
- * to some alternative; we're now checking the alternative against
- * the blacklist.
- */
- S_CONNECTED_SWITCHING_BLACKLIST,
+ GNUNET_TRANSPORT_PS_RECONNECT_SENT,
/**
* We have some primary connection, but ATS suggested we switch
* alternative session to the other peer and waiting for a
* CONNECT_ACK to make this our primary connection.
*/
- S_CONNECTED_SWITCHING_CONNECT_SENT,
+ GNUNET_TRANSPORT_PS_CONNECTED_SWITCHING_CONNECT_SENT,
/**
* Disconnect in progress (we're sending the DISCONNECT message to the
* other peer; after that is finished, the state will be cleaned up).
*/
- S_DISCONNECT,
+ GNUNET_TRANSPORT_PS_DISCONNECT,
/**
* We're finished with the disconnect; and are cleaning up the state
* in this state virtually always means using memory that has been
* freed (the exception being the cleanup code in #free_neighbour()).
*/
- S_DISCONNECT_FINISHED
+ GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED
};
+/**
+ * Current state of a validation process.
+ *
+ * FIXME: what state is used to indicate that a validation
+ * was successful? If that is clarified/determined, "UGH" in
+ * ~gnunet-peerinfo-gtk.c:1103 should be resolved.
+ */
+enum GNUNET_TRANSPORT_ValidationState
+{
+ /**
+ * Undefined state
+ *
+ * Used for final callback indicating operation done
+ */
+ GNUNET_TRANSPORT_VS_NONE,
+
+ /**
+ * Fresh validation entry
+ *
+ * Entry was just created, no validation process was executed
+ */
+ GNUNET_TRANSPORT_VS_NEW,
+
+ /**
+ * Updated validation entry
+ *
+ * This is an update for an existing validation entry
+ */
+ GNUNET_TRANSPORT_VS_UPDATE,
+
+ /**
+ * Timeout for validation entry
+ *
+ * A timeout occured during the validation process
+ */
+ GNUNET_TRANSPORT_VS_TIMEOUT,
+
+ /**
+ * Validation entry is removed
+ *
+ * The validation entry is getting removed due to a failed validation
+ */
+ GNUNET_TRANSPORT_VS_REMOVE
+};
+
/**
* Function called by the transport for each received message.
* @param peer (claimed) identity of the other peer
* @param message the message
* @param ats performance data
- * @param ats_count number of entries in ats
+ * @param ats_count number of entries in @a ats
*/
-typedef void (*GNUNET_TRANSPORT_ReceiveCallback) (void *cls,
- const struct
- GNUNET_PeerIdentity * peer,
- const struct
- GNUNET_MessageHeader *
- message);
+typedef void
+(*GNUNET_TRANSPORT_ReceiveCallback) (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message);
/**
* @param cls closure
* @param peer the peer that connected
* @param ats performance data
- * @param ats_count number of entries in ats (excluding 0-termination)
+ * @param ats_count number of entries in @a ats (excluding 0-termination)
*/
-typedef void (*GNUNET_TRANSPORT_NotifyConnect) (void *cls,
- const struct GNUNET_PeerIdentity
- * peer);
+typedef void
+(*GNUNET_TRANSPORT_NotifyConnect) (void *cls,
+ const struct GNUNET_PeerIdentity *peer);
/**
* Function called to notify transport users that another
* @param cls closure
* @param peer the peer that disconnected
*/
-typedef void (*GNUNET_TRANSPORT_NotifyDisconnect) (void *cls,
- const struct
- GNUNET_PeerIdentity * peer);
+typedef void
+(*GNUNET_TRANSPORT_NotifyDisconnect) (void *cls,
+ const struct GNUNET_PeerIdentity *peer);
/**
*
*
* @param cls closure
- * @param result GNUNET_OK if message was transmitted to transport service
- * GNUNET_SYSERR if message was not transmitted to transport service
+ * @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);
+typedef void
+(*GNUNET_TRANSPORT_TryConnectCallback) (void *cls,
+ const int result);
/**
* @param address NULL on error or end of iteration,
* otherwise 0-terminated printable UTF-8 string
*/
-typedef void (*GNUNET_TRANSPORT_AddressToStringCallback) (void *cls,
- const char *address);
+typedef void
+(*GNUNET_TRANSPORT_AddressToStringCallback) (void *cls,
+ const char *address);
/**
* Function to call with information about a peer
*
+ * If one_shot was set to #GNUNET_YES to iterate over all peers once,
+ * a final call with NULL for peer and address will follow when done.
+ * In this case state and timeout do not contain valid values.
+ *
* The #GNUNET_TRANSPORT_monitor_peers_cancel call MUST not be called from
* within this function!
*
+ *
* @param cls closure
* @param peer peer this update is about,
* NULL if this is the final last callback for a iteration operation
* @param state current state this peer is in
* @param state_timeout timeout for the current state of the peer
*/
-typedef void (*GNUNET_TRANSPORT_PeerIterateCallback) (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
- enum GNUNET_TRANSPORT_PeerState state,
- struct GNUNET_TIME_Absolute state_timeout);
+typedef void
+(*GNUNET_TRANSPORT_PeerIterateCallback) (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Address *address,
+ enum GNUNET_TRANSPORT_PeerState state,
+ struct GNUNET_TIME_Absolute state_timeout);
/**
* Function to call with validation information about a peer
*
+ * This function is called by the transport validation monitoring api to
+ * indicate a change to a validation entry. The information included represent
+ * the current state of the validation entry,
+ *
+ * If the monitoring was called with one_shot=GNUNET_YES, a final callback
+ * with peer==NULL and address==NULL is executed.
+ *
* @param cls closure
* @param peer peer this update is about,
* NULL if this is the final last callback for a iteration operation
- * @param address address, NULL for disconnect notification in monitor mode
+ * @param address address,
+ * NULL for disconnect notification in monitor mode
+ * @param last_validation when was this address last validated
* @param valid_until when does this address expire
* @param next_validation time of the next validation operation
- *
+ * @param state state in the validation state machine
*/
-typedef void (*GNUNET_TRANSPORT_ValidationIterateCallback) (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
- struct GNUNET_TIME_Absolute valid_until,
- struct GNUNET_TIME_Absolute next_validation);
-
+typedef void
+(*GNUNET_TRANSPORT_ValidationIterateCallback) (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_TIME_Absolute last_validation,
+ struct GNUNET_TIME_Absolute valid_until,
+ struct GNUNET_TIME_Absolute next_validation,
+ enum GNUNET_TRANSPORT_ValidationState state);
/**
*/
struct GNUNET_TRANSPORT_Handle *
GNUNET_TRANSPORT_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
- const struct GNUNET_PeerIdentity *self, void *cls,
+ const struct GNUNET_PeerIdentity *self,
+ void *cls,
GNUNET_TRANSPORT_ReceiveCallback rec,
GNUNET_TRANSPORT_NotifyConnect nc,
GNUNET_TRANSPORT_NotifyDisconnect nd);
+/**
+ * Function called if we have "excess" bandwidth to a peer.
+ * The notification will happen the first time we have excess
+ * bandwidth, and then only again after the client has performed
+ * some transmission to the peer.
+ *
+ * Excess bandwidth is defined as being allowed (by ATS) to send
+ * more data, and us reaching the limit of the capacity build-up
+ * (which, if we go past it, means we don't use available bandwidth).
+ * See also the "max carry" in `struct GNUNET_BANDWIDTH_Tracker`.
+ *
+ * @param cls the closure
+ * @param peer peer that we have excess bandwidth to
+ */
+typedef void
+(*GNUNET_TRANSPORT_NotifyExcessBandwidth)(void *cls,
+ const struct GNUNET_PeerIdentity *neighbour);
+
+
+/**
+ * Connect to the transport service. Note that the connection may
+ * complete (or fail) asynchronously.
+ *
+ * @param cfg configuration to use
+ * @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, or NULL
+ * @param nc function to call on connect events, or NULL
+ * @param nd function to call on disconnect events, or NULL
+ * @param neb function to call if we have excess bandwidth to a peer
+ * @return NULL on error
+ */
+struct GNUNET_TRANSPORT_Handle *
+GNUNET_TRANSPORT_connect2 (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ const struct GNUNET_PeerIdentity *self,
+ void *cls,
+ GNUNET_TRANSPORT_ReceiveCallback rec,
+ GNUNET_TRANSPORT_NotifyConnect nc,
+ GNUNET_TRANSPORT_NotifyDisconnect nd,
+ GNUNET_TRANSPORT_NotifyExcessBandwidth neb);
+
+
/**
* Disconnect from the 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)
+ * @param cb_cls closure for the callback @a cb
+ * @return a `struct GNUNET_TRANSPORT_TryConnectHandle` handle or
+ * NULL on failure (@a cb will not be called)
*/
struct GNUNET_TRANSPORT_TryConnectHandle *
GNUNET_TRANSPORT_try_connect (struct GNUNET_TRANSPORT_Handle *handle,
* Cancel the request to transport to try a connect
* Callback will not be called
*
- * @param tch GNUNET_TRANSPORT_TryConnectHandle handle to cancel
+ * @param tch handle to cancel
*/
void
GNUNET_TRANSPORT_try_connect_cancel (struct GNUNET_TRANSPORT_TryConnectHandle *tch);
+/**
+ * Ask the transport service to establish a disconnect from
+ * the given peer.
+ *
+ * @param handle connection to transport service
+ * @param target who we should try to disconnect from
+ * @param cb callback to be called when request was transmitted to transport
+ * service
+ * @param cb_cls closure for the callback @a cb
+ * @return a `struct GNUNET_TRANSPORT_TryConnectHandle` handle or
+ * NULL on failure (@a cb will not be called)
+ */
+struct GNUNET_TRANSPORT_TryConnectHandle *
+GNUNET_TRANSPORT_try_disconnect (struct GNUNET_TRANSPORT_Handle *handle,
+ const struct GNUNET_PeerIdentity *target,
+ GNUNET_TRANSPORT_TryConnectCallback cb,
+ void *cb_cls);
+
+
+/**
+ * Cancel the request to transport to try a disconnect
+ * Callback will not be called
+ *
+ * @param tch handle for operation to cancel
+ */
+void
+GNUNET_TRANSPORT_try_disconnect_cancel (struct GNUNET_TRANSPORT_TryConnectHandle *tch);
+
+
/**
* Opaque handle for a transmission-ready request.
*/
struct GNUNET_TRANSPORT_TransmitHandle;
+/**
+ * Function called to notify a client about the connection begin ready
+ * to queue more data. @a buf will be NULL and @a size zero if the
+ * connection was closed for writing in the meantime.
+ *
+ * @param cls closure
+ * @param size number of bytes available in @a buf
+ * @param buf where the callee should write the message
+ * @return number of bytes written to @a buf
+ */
+typedef size_t
+(*GNUNET_TRANSPORT_TransmitReadyNotify) (void *cls,
+ size_t size,
+ void *buf);
+
+
/**
* Check if we could queue a message of the given size for
* transmission. The transport service will take both its internal
* @param handle connection to transport service
* @param target who should receive the message
* @param size how big is the message we want to transmit?
- * @param priority how important is the message? @deprecated - remove?
* @param timeout after how long should we give up (and call
* notify with buf NULL and size 0)?
* @param notify function to call when we are ready to
* send such a message
- * @param notify_cls closure for notify
+ * @param notify_cls closure for @a notify
* @return NULL if someone else is already waiting to be notified
* non-NULL if the notify callback was queued (can be used to cancel
* using GNUNET_TRANSPORT_notify_transmit_ready_cancel)
*/
struct GNUNET_TRANSPORT_TransmitHandle *
GNUNET_TRANSPORT_notify_transmit_ready (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity
- *target, size_t size, uint32_t priority,
+ const struct GNUNET_PeerIdentity *target,
+ size_t size,
struct GNUNET_TIME_Relative timeout,
- GNUNET_CONNECTION_TransmitReadyNotify
- notify, void *notify_cls);
+ GNUNET_TRANSPORT_TransmitReadyNotify notify,
+ void *notify_cls);
/**
* @param th handle of the transmission notification request to cancel
*/
void
-GNUNET_TRANSPORT_notify_transmit_ready_cancel (struct
- GNUNET_TRANSPORT_TransmitHandle
- *th);
-
+GNUNET_TRANSPORT_notify_transmit_ready_cancel (struct GNUNET_TRANSPORT_TransmitHandle *th);
/**
* @param cls closure
* @param hello our updated HELLO
*/
-typedef void (*GNUNET_TRANSPORT_HelloUpdateCallback) (void *cls,
- const struct
- GNUNET_MessageHeader *
- hello);
+typedef void
+(*GNUNET_TRANSPORT_HelloUpdateCallback) (void *cls,
+ const struct GNUNET_MessageHeader *hello);
/**
- * Handle to cancel a 'GNUNET_TRANSPORT_get_hello' operation.
+ * Handle to cancel a #GNUNET_TRANSPORT_get_hello() operation.
*/
struct GNUNET_TRANSPORT_GetHelloHandle;
*/
int
GNUNET_TRANSPORT_check_peer_connected (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity *peer);
+ const struct GNUNET_PeerIdentity *peer);
/**
*
* @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 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))
+ * #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:
*
* @param handle connection to transport service
* @param rec function to call with the HELLO
- * @param rec_cls closure for rec
+ * @param rec_cls closure for @a rec
* @return handle to cancel the operation
*/
struct GNUNET_TRANSPORT_GetHelloHandle *
GNUNET_TRANSPORT_get_hello_cancel (struct GNUNET_TRANSPORT_GetHelloHandle *ghh);
+/**
+ * Handle for a #GNUNET_TRANSPORT_offer_hello operation
+ */
+struct GNUNET_TRANSPORT_OfferHelloHandle;
+
/**
* Offer the transport service the HELLO of another peer. Note that
* the transport service may just ignore this message if the HELLO is
* @param handle connection to transport service
* @param hello the hello message
* @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
+ * 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
/**
* Cancel the request to transport to offer the HELLO message
*
- * @param ohh the GNUNET_TRANSPORT_OfferHelloHandle to cancel
+ * @param ohh the `struct GNUNET_TRANSPORT_OfferHelloHandle` to cancel
*/
void
GNUNET_TRANSPORT_offer_hello_cancel (struct GNUNET_TRANSPORT_OfferHelloHandle *ohh);
* (otherwise do reverse DNS lookup)
* @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
+ * @param aluc_cls closure for @a aluc
* @return handle to cancel the operation, NULL on error
*/
struct GNUNET_TRANSPORT_AddressToStringContext *
-GNUNET_TRANSPORT_address_to_string (const struct GNUNET_CONFIGURATION_Handle
- *cfg,
+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);
+ GNUNET_TRANSPORT_AddressToStringCallback aluc,
+ void *aluc_cls);
/**
* @param pic the context handle
*/
void
-GNUNET_TRANSPORT_address_to_string_cancel (struct
- GNUNET_TRANSPORT_AddressToStringContext
- *pic);
+GNUNET_TRANSPORT_address_to_string_cancel (struct GNUNET_TRANSPORT_AddressToStringContext *pic);
+
/**
* Convert a transport state to a human readable string.
* @param state the state
*/
const char *
-GNUNET_TRANSPORT_p2s (enum GNUNET_TRANSPORT_PeerState state);
+GNUNET_TRANSPORT_ps2s (enum GNUNET_TRANSPORT_PeerState state);
/**
* Check if a state is defined as connected
*
* @param state the state value
- * @return GNUNET_YES or GNUNET_NO
+ * @return #GNUNET_YES or #GNUNET_NO
*/
int
GNUNET_TRANSPORT_is_connected (enum GNUNET_TRANSPORT_PeerState state);
+
+/**
+ * Convert validation state to human-readable string.
+ *
+ * @param state the state value
+ * @return corresponding string
+ */
+const char *
+GNUNET_TRANSPORT_vs2s (enum GNUNET_TRANSPORT_ValidationState state);
+
+
+/**
+ * Handle for a #GNUNET_TRANSPORT_monitor_peers operation.
+ */
+struct GNUNET_TRANSPORT_PeerMonitoringContext;
+
/**
* Return information about a specific peer or all peers currently known to
* transport service once or in monitoring mode. To obtain information about
* more time with 'NULL'. After this, the operation must no longer be
* explicitly canceled.
*
+ * The #GNUNET_TRANSPORT_monitor_peers_cancel call MUST not be called in the
+ * the peer_callback!
+ *
* @param cfg configuration to use
* @param peer a specific peer identity to obtain information for,
* NULL for all peers
- * @param one_shot GNUNET_YES to return the current state and then end (with NULL+NULL),
- * GNUNET_NO to monitor peers continuously
+ * @param one_shot #GNUNET_YES to return the current state and then end (with NULL+NULL),
+ * #GNUNET_NO to monitor peers continuously
* @param timeout how long is the lookup allowed to take at most
* @param peer_callback function to call with the results
- * @param peer_callback_cls closure for peer_address_callback
+ * @param peer_callback_cls closure for @a peer_callback
*/
struct GNUNET_TRANSPORT_PeerMonitoringContext *
-GNUNET_TRANSPORT_monitor_peers (const struct
- GNUNET_CONFIGURATION_Handle *cfg,
+GNUNET_TRANSPORT_monitor_peers (const struct GNUNET_CONFIGURATION_Handle *cfg,
const struct GNUNET_PeerIdentity *peer,
int one_shot,
struct GNUNET_TIME_Relative timeout,
GNUNET_TRANSPORT_monitor_peers_cancel (struct GNUNET_TRANSPORT_PeerMonitoringContext *pic);
+/**
+ * Handle for a #GNUNET_TRANSPORT_monitor_validation_entries() operation.
+ */
+struct GNUNET_TRANSPORT_ValidationMonitoringContext;
/**
* Return information about pending address validation operations for a specific
* @param cfg configuration to use
* @param peer a specific peer identity to obtain validation entries for,
* NULL for all peers
- * @param one_shot GNUNET_YES to return all entries and then end (with NULL+NULL),
- * GNUNET_NO to monitor validation entries continuously
+ * @param one_shot #GNUNET_YES to return all entries and then end (with NULL+NULL),
+ * #GNUNET_NO to monitor validation entries continuously
* @param timeout how long is the lookup allowed to take at most
* @param validation_callback function to call with the results
- * @param validation_callback_cls closure for peer_address_callback
+ * @param validation_callback_cls closure for @a validation_callback
*/
struct GNUNET_TRANSPORT_ValidationMonitoringContext *
-GNUNET_TRANSPORT_monitor_validation_entries (const struct
- GNUNET_CONFIGURATION_Handle *cfg,
- const struct GNUNET_PeerIdentity *peer,
- int one_shot,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_TRANSPORT_ValidationIterateCallback validation_callback,
- void *validation_callback_cls);
+GNUNET_TRANSPORT_monitor_validation_entries (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ const struct GNUNET_PeerIdentity *peer,
+ int one_shot,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TRANSPORT_ValidationIterateCallback validation_callback,
+ void *validation_callback_cls);
/**
GNUNET_TRANSPORT_monitor_validation_entries_cancel (struct GNUNET_TRANSPORT_ValidationMonitoringContext *vic);
-
/**
* Handle for blacklisting peers.
*/
*
* @param cls closure
* @param pid peer to approve or disapproave
- * @return GNUNET_OK if the connection is allowed, GNUNET_SYSERR if not
+ * @return #GNUNET_OK if the connection is allowed, #GNUNET_SYSERR if not
*/
-typedef int (*GNUNET_TRANSPORT_BlacklistCallback) (void *cls,
- const struct
- GNUNET_PeerIdentity * pid);
+typedef int
+(*GNUNET_TRANSPORT_BlacklistCallback) (void *cls,
+ const struct
+ GNUNET_PeerIdentity * pid);
/**
*
* @param cfg configuration to use
* @param cb callback to invoke to check if connections are allowed
- * @param cb_cls closure for cb
+ * @param cb_cls closure for @a cb
* @return NULL on error, otherwise handle for cancellation
*/
struct GNUNET_TRANSPORT_Blacklist *
/* ifndef GNUNET_TRANSPORT_SERVICE_H */
#endif
/* end of gnunet_transport_service.h */
+
+
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