* @file mesh/mesh.h
*/
-
#ifndef MESH_H_
#define MESH_H_
#include <stdint.h>
+
+#include <gnunet_mesh_service_new.h>
#include "gnunet_common.h"
+/******************************************************************************/
+/******************** MESH LOCAL MESSAGES *************************/
+/******************************************************************************/
+/* Any API call should be documented in the folowing table under API CALL.
+ * Also, any message type should be documented in the following table, with the
+ * associated event.
+ *
+ * API CALL (GNUNET_MESH_*) MESSAGE USED
+ * ------------------------ ------------
+ * connect GNUNET_MESH_ClientConnect
+ * disconnect None (network level disconnect)
+ *
+ * tunnel_create GNUNET_MESH_TunnelMessage
+ * tunnel_destroy GNUNET_MESH_TunnelMessage
+ *
+ * peer_request_connect_add GNUNET_MESH_PeerControl
+ * peer_request_connect_del GNUNET_MESH_PeerControl
+ * peer_request_connect_by_type GNUNET_MESH_ConnectPeerByType
+ *
+ * notify_transmit_ready GNUNET_MESH_TransmitReady
+ * notify_transmit_ready_cancel None (clear of internal data structures)
+ *
+ *
+ *
+ * EVENT MESSAGE USED
+ * ----- ------------
+ * notify_transmit_ready reply GNUNET_MESH_TransmitReady
+ * notify_transmit_ready data GNUNET_MESH_Data OR
+ * GNUNET_MESH_DataBroadcast
+ * new incoming tunnel GNUNET_MESH_PeerControl
+ * peer connects to a tunnel GNUNET_MESH_PeerControl
+ * peer disconnects from a tunnel GNUNET_MESH_PeerControl
+ */
+
+/******************************************************************************/
+/************************** CONSTANTS ******************************/
+/******************************************************************************/
+
+#define GNUNET_MESH_LOCAL_TUNNEL_ID_MARK 0x80000000
+
+
+/******************************************************************************/
+/************************** MESSAGES ******************************/
+/******************************************************************************/
+
/**
- * Message for mesh path management
+ * Message for a client to register to the service
*/
-struct GNUNET_MESH_ManipulatePath
-{
+struct GNUNET_MESH_ClientConnect {
/**
- * Type: GNUNET_MESSAGE_TYPE_MESH_PATH_[CREATE|CHANGE|ADD]
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_CONNECT
+ *
+ * Size: sizeof(struct GNUNET_MESH_ClientConnect) +
+ * sizeof(uint16_t) * types +
+ * sizeof(MESH_ApplicationType) * applications
*/
struct GNUNET_MessageHeader header;
+ uint16_t types GNUNET_PACKED;
+ uint16_t applications GNUNET_PACKED;
+ /* uint16_t list_types[types] */
+ /* uint16_t list_apps[applications] */
+};
- /**
- * Id of the tunnel this path belongs to
- */
- uint32_t tid;
- /**
- * Information about speed requirements
- */
- uint32_t speed_min;
- uint32_t speed_max;
+/**
+ * Type for tunnel numbering.
+ * - Local tunnel numbers are >= 0x80000000
+ * - Global tunnel numbers are < 0x80000000
+ */
+typedef uint32_t MESH_TunnelNumber;
+/**
+ * Message for a client to create and destroy tunnels.
+ */
+struct GNUNET_MESH_TunnelMessage {
/**
- * Number of hops in the path given below
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_[CREATE|DESTROY]
+ *
+ * Size: sizeof(struct GNUNET_MESH_TunnelMessage)
*/
- uint16_t path_length;
+ struct GNUNET_MessageHeader header;
/**
- * path_length structs defining the *whole* path
+ * ID of a tunnel controlled by this client.
*/
- struct GNUNET_PeerIdentity peers[];
+ MESH_TunnelNumber tunnel_id GNUNET_PACKED;
};
/**
- * Message for mesh data traffic
+ * Message for:
+ * - request adding and deleting peers from a tunnel
+ * - notify the client that peers have connected:
+ * -- requested
+ * -- unrequested (new incoming tunnels)
+ * - notify the client that peers have disconnected
*/
-struct GNUNET_MESH_Data
-{
+struct GNUNET_MESH_PeerControl {
+
+ /**
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_CONNECT_PEER_[ADD|DEL]
+ * (client to service, client created tunnel)
+ * GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_[CONNECTED|DISCONNECTED]
+ * (service to client)
+ *
+ * Size: sizeof(struct GNUNET_MESH_PeerControl)
+ */
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * ID of a tunnel controlled by this client.
+ */
+ MESH_TunnelNumber tunnel_id GNUNET_PACKED;
+
+ /**
+ * Peer to connect/disconnect.
+ */
+ struct GNUNET_PeerIdentity peer;
+};
+
+
+/**
+ * Message for connecting to peers offering a certain service.
+ */
+struct GNUNET_MESH_ConnectPeerByType {
/**
- * Type: GNUNET_MESSAGE_TYPE_DATA_[GO|BACK]
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_CONNECT_PEER_BY_TYPE
*/
struct GNUNET_MessageHeader header;
- /**
- * OID of the tunnel
- */
- struct GNUNET_PeerIdentity oid;
+ /**
+ * ID of a tunnel controlled by this client.
+ */
+ MESH_TunnelNumber tunnel_id GNUNET_PACKED;
+
+ /**
+ * Type specification
+ */
+ GNUNET_MESH_ApplicationType type GNUNET_PACKED;
+};
- /**
- * TID of the tunnel
- */
- uint32_t tid;
+/**
+ * Message for notifying the service that the client wants to send data or
+ * notifying a client that the service is ready to accept data.
+ */
+struct GNUNET_MESH_TransmitReady {
/**
- * FIXME Some form of authentication
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_REQUEST_TRANSMIT_READY
+ * GNUNET_MESSAGE_TYPE_MESH_LOCAL_NOTIFY_TRANSMIT_READY
*/
- uint32_t token;
+ struct GNUNET_MessageHeader header;
/**
- * Size of payload
- * FIXME uint16 enough?
+ * ID of a tunnel controlled by this client.
*/
- uint16_t size;
+ MESH_TunnelNumber tunnel_id GNUNET_PACKED;
/**
- * Payload
+ * Size of message we would like to transmit to this tunnel
*/
- uint8_t data[];
+ uint32_t msg_size GNUNET_PACKED;
};
+
/**
- * Message for mesh flow control
+ * Message to encapsulate data transmitted to/from the service
*/
-struct GNUNET_MESH_SpeedNotify
-{
+struct GNUNET_MESH_Data {
/**
- * Type: GNUNET_MESSAGE_TYPE_DATA_SPEED_NOTIFY
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_DATA
+ * (client to service, or service to client)
+ * Size: sizeof(struct GNUNET_MESH_Data) + sizeof (data)
*/
struct GNUNET_MessageHeader header;
/**
- * OID of the tunnel
+ * ID of a tunnel controlled by this client.
*/
- struct GNUNET_PeerIdentity oid;
+ MESH_TunnelNumber tunnel_id GNUNET_PACKED;
/**
- * TID of the tunnel
+ * Source or destination of the message (depending on direction).
*/
- uint32_t tid;
+ struct GNUNET_PeerIdentity peer_id;
+ /* uint8_t data[] */
+};
+
+/**
+ * Message to encapsulate broadcast data transmitted to the service
+ */
+struct GNUNET_MESH_DataBroadcast {
/**
- * Slowest link down the path
+ * Type: GNUNET_MESSAGE_TYPE_MESH_LOCAL_DATA_BROADCAST
+ * (client to service only, client created tunnel)
+ * Size: sizeof(struct GNUNET_MESH_DataBroadcast) + sizeof (data)
*/
- uint32_t speed_min;
+ struct GNUNET_MessageHeader header;
/**
- * Fastest link down the path
+ * ID of a tunnel controlled by this client.
*/
- uint32_t speed_max;
+ MESH_TunnelNumber tunnel_id GNUNET_PACKED;
+
+ /* uint8_t data[] */
};
-#endif
\ No newline at end of file
+
+#endif