#include "platform.h"
#include "gnunet_util_lib.h"
+#include "mesh_protocol_enc.h"
+#include "mesh_enc.h"
+
/**
* Struct containing all information regarding a channel to a remote client.
*/
struct MeshChannel;
+
+#include "gnunet-service-mesh_tunnel.h"
+#include "gnunet-service-mesh_local.h"
+
+
+/**
+ * Get channel ID.
+ *
+ * @param ch Channel.
+ *
+ * @return ID
+ */
+MESH_ChannelNumber
+GMCH_get_id (const struct MeshChannel *ch);
+
+/**
+ * Get the channel tunnel.
+ *
+ * @param ch Channel to get the tunnel from.
+ *
+ * @return tunnel of the channel.
+ */
+struct MeshTunnel3 *
+GMCH_get_tunnel (const struct MeshChannel *ch);
+
/**
- * Count channels in a DLL.
- *
- * @param head Head of the DLL.
+ * Get free buffer space towards the client on a specific channel.
+ *
+ * @param ch Channel.
+ * @param fwd Is query about FWD traffic?
+ *
+ * @return Free buffer space [0 - 64]
*/
unsigned int
-GMCH_count (const struct MeshChannel *head);
+GMCH_get_buffer (struct MeshChannel *ch, int fwd);
/**
- * Send an end-to-end ACK message for the most recent in-sequence payload.
+ * Is the root client for this channel on this peer?
*
- * If channel is not reliable, do nothing.
+ * @param ch Channel.
+ * @param fwd Is this for fwd traffic?
*
- * @param ch Channel this is about.
- * @param fwd Is for FWD traffic? (ACK dest->owner)
+ * @return GNUNET_YES in case it is.
*/
-void
-GMCH_send_ack (struct MeshChannel *ch, int fwd);
+int
+GMCH_is_origin (struct MeshChannel *ch, int fwd);
+
+/**
+ * Is the destination client for this channel on this peer?
+ *
+ * @param ch Channel.
+ * @param fwd Is this for fwd traffic?
+ *
+ * @return GNUNET_YES in case it is.
+ */
+int
+GMCH_is_terminal (struct MeshChannel *ch, int fwd);
/**
* Send data on a channel.
const struct GNUNET_MESH_Data *msg,
int fwd);
+/**
+ * Send an end-to-end ACK message for the most recent in-sequence payload.
+ *
+ * If channel is not reliable, do nothing.
+ *
+ * @param ch Channel this is about.
+ * @param fwd Is for FWD traffic? (ACK dest->owner)
+ */
+void
+GMCH_send_data_ack (struct MeshChannel *ch, int fwd);
+
/**
* Notify the destination client that a new incoming channel was created.
*
void
GMCH_send_create (struct MeshChannel *ch);
-
/**
* Notify a client that the channel is no longer valid.
*
* @param ch Channel that is destroyed.
- * @param fwd Forward notification (owner->dest)?
*/
void
-GMCH_send_destroy (struct MeshChannel *ch, int fwd);
-
+GMCH_send_destroy (struct MeshChannel *ch);
/**
* Log channel info.
void
GMCH_debug (struct MeshChannel *ch);
+/**
+ * Handle an ACK given by a client.
+ *
+ * Mark client as ready and send him any buffered data we could have for him.
+ *
+ * @param ch Channel.
+ * @param fwd Is this a "FWD ACK"? (FWD ACKs are sent by root and go BCK)
+ */
+void
+GMCH_handle_local_ack (struct MeshChannel *ch, int fwd);
+
+/**
+ * Handle data given by a client.
+ *
+ * Check whether the client is allowed to send in this tunnel, save if channel
+ * is reliable and send an ACK to the client if there is still buffer space
+ * in the tunnel.
+ *
+ * @param ch Channel.
+ * @param fwd Is this a FWD data?
+ *
+ * @return GNUNET_OK if everything goes well, GNUNET_SYSERR in case of en error.
+ */
+int
+GMCH_handle_local_data (struct MeshChannel *ch,
+ struct MeshClient *c,
+ struct GNUNET_MessageHeader *message,
+ int fwd);
+
+/**
+ * Handle a channel destroy requested by a client.
+ *
+ * Destroy the channel and the tunnel in case this was the last channel.
+ *
+ * @param ch Channel.
+ * @param c Client that requested the destruction (to avoid notifying him).
+ */
+void
+GMCH_handle_local_destroy (struct MeshChannel *ch,
+ struct MeshClient *c);
+
+/**
+ * Handle a channel create requested by a client.
+ *
+ * Create the channel and the tunnel in case this was the first0 channel.
+ *
+ * @param c Client that requested the creation (will be the root).
+ * @param msg Create Channel message.
+ *
+ * @return GNUNET_OK if everything went fine, GNUNET_SYSERR otherwise.
+ */
+int
+GMCH_handle_local_create (struct MeshClient *c,
+ struct GNUNET_MESH_ChannelMessage *msg);
/**
* Handler for mesh network payload traffic.
*
- * @param t Tunnel on which we got this message.
+ * @param ch Channel for the message.
* @param message Unencryted data message.
* @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
*/
void
-GMCH_handle_data (struct MeshTunnel2 *t,
+GMCH_handle_data (struct MeshChannel *ch,
const struct GNUNET_MESH_Data *msg,
int fwd);
-
/**
* Handler for mesh network traffic end-to-end ACKs.
*
* @param fwd Is this a fwd ACK? (dest->orig)
*/
void
-GMCH_handle_data_ack (struct MeshTunnel2 *t,
+GMCH_handle_data_ack (struct MeshChannel *ch,
const struct GNUNET_MESH_DataACK *msg,
int fwd);
-
/**
* Handler for channel create messages.
*
- * @param t Tunnel this channel is to be created in.
+ * @param t Tunnel this channel will be in.
* @param msg Message.
* @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
*/
-void
-GMCH_handle_create (struct MeshTunnel2 *t,
- struct GNUNET_MESH_ChannelCreate *msg,
+struct MeshChannel *
+GMCH_handle_create (struct MeshTunnel3 *t,
+ const struct GNUNET_MESH_ChannelCreate *msg,
int fwd);
-
/**
* Handler for channel ack messages.
*
* @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
*/
void
-GMCH_handle_ack (struct MeshTunnel2 *t,
- struct GNUNET_MESH_ChannelManage *msg,
+GMCH_handle_ack (struct MeshChannel *ch,
+ const struct GNUNET_MESH_ChannelManage *msg,
int fwd);
-
/**
* Handler for channel destroy messages.
*
* @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
*/
void
-GMCH_handle_destroy (struct MeshTunnel2 *t,
- struct GNUNET_MESH_ChannelManage *msg,
+GMCH_handle_destroy (struct MeshChannel *ch,
+ const struct GNUNET_MESH_ChannelManage *msg,
int fwd);
+/**
+ * Sends an already built message on a channel.
+ *
+ * If the channel is on a loopback tunnel, notifies the appropriate destination
+ * client locally.
+ *
+ * On a normal channel passes the message to the tunnel for encryption and
+ * sending on a connection.
+ *
+ * @param message Message to send. Function makes a copy of it.
+ * @param ch Channel on which this message is transmitted.
+ * @param fwd Is this a fwd message?
+ */
+void
+GMCH_send_prebuilt_message (const struct GNUNET_MessageHeader *message,
+ struct MeshChannel *ch, int fwd);
+/**
+ * Get the static string for identification of the channel.
+ *
+ * @param ch Channel.
+ *
+ * @return Static string with the channel IDs.
+ */
+const char *
+GMCH_2s (const struct MeshChannel *ch);
#if 0 /* keep Emacsens' auto-indent happy */
/* ifndef GNUNET_SERVICE_MESH_CHANNEL_H */
#endif
-/* end of gnunet-service-mesh_channel.h */
\ No newline at end of file
+/* end of gnunet-service-mesh_channel.h */