/*********************** DECLARATIONS **************************/
/******************************************************************************/
-/**
- * Function to process paths received for a new peer addition. The recorded
- * paths form the initial tunnel, which can be optimized later.
- * Called on each result obtained for the DHT search.
- *
- * @param cls closure
- * @param exp when will this value expire
- * @param key key of the result
- * @param type type of the result
- * @param size number of bytes in data
- * @param data pointer to the result data
- */
-static void
-dht_get_id_handler (void *cls, struct GNUNET_TIME_Absolute exp,
- const struct GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity *get_path,
- unsigned int get_path_length,
- const struct GNUNET_PeerIdentity *put_path,
- unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
- size_t size, const void *data);
-
-
-/**
- * Retrieve the MeshPeer stucture associated with the peer, create one
- * and insert it in the appropriate structures if the peer is not known yet.
- *
- * @param peer Full identity of the peer.
- *
- * @return Existing or newly created peer info.
- */
-static struct MeshPeer *
-peer_get (const struct GNUNET_PeerIdentity *peer);
-
-
-/**
- * Retrieve the MeshPeer stucture associated with the peer, create one
- * and insert it in the appropriate structures if the peer is not known yet.
- *
- * @param peer Short identity of the peer.
- *
- * @return Existing or newly created peer info.
- */
-static struct MeshPeer *
-peer_get_short (const GNUNET_PEER_Id peer);
-
-
-/**
- * Build a PeerPath from the paths returned from the DHT, reversing the paths
- * to obtain a local peer -> destination path and interning the peer ids.
- *
- * @return Newly allocated and created path
- */
-static struct MeshPeerPath *
-path_build_from_dht (const struct GNUNET_PeerIdentity *get_path,
- unsigned int get_path_length,
- const struct GNUNET_PeerIdentity *put_path,
- unsigned int put_path_length);
-
-
/**
* Adds a path to the data structs of all the peers in the path
*
/******************** MESH NETWORK HANDLERS **************************/
/******************************************************************************/
-
-/**
- * Generic handler for mesh network payload traffic.
- *
- * @param t Tunnel on which we got this message.
- * @param message Unencryted data message.
- * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
- */
-static void
-handle_data (struct MeshTunnel2 *t, const struct GNUNET_MESH_Data *msg, int fwd)
-{
- struct MeshChannelReliability *rel;
- struct MeshChannel *ch;
- struct MeshClient *c;
- uint32_t mid;
- uint16_t type;
- size_t size;
-
- /* Check size */
- size = ntohs (msg->header.size);
- if (size <
- sizeof (struct GNUNET_MESH_Data) +
- sizeof (struct GNUNET_MessageHeader))
- {
- GNUNET_break (0);
- return;
- }
- type = ntohs (msg->header.type);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "got a %s message\n",
- GNUNET_MESH_DEBUG_M2S (type));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " payload of type %s\n",
- GNUNET_MESH_DEBUG_M2S (ntohs (msg[1].header.type)));
-
- /* Check channel */
- ch = channel_get (t, ntohl (msg->chid));
- if (NULL == ch)
- {
- GNUNET_STATISTICS_update (stats, "# data on unknown channel", 1, GNUNET_NO);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "WARNING channel %u unknown\n",
- ntohl (msg->chid));
- return;
- }
-
- /* Initialize FWD/BCK data */
- c = fwd ? ch->dest : ch->root;
- rel = fwd ? ch->dest_rel : ch->root_rel;
-
- if (NULL == c)
- {
- GNUNET_break (0);
- return;
- }
-
- tunnel_change_state (t, MESH_TUNNEL_READY);
-
- GNUNET_STATISTICS_update (stats, "# data received", 1, GNUNET_NO);
-
- mid = ntohl (msg->mid);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " mid %u\n", mid);
-
- if (GNUNET_NO == ch->reliable ||
- ( !GMC_is_pid_bigger (rel->mid_recv, mid) &&
- GMC_is_pid_bigger (rel->mid_recv + 64, mid) ) )
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! RECV %u\n", mid);
- if (GNUNET_YES == ch->reliable)
- {
- /* Is this the exact next expected messasge? */
- if (mid == rel->mid_recv)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "as expected\n");
- rel->mid_recv++;
- channel_send_client_data (ch, msg, fwd);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "save for later\n");
- channel_rel_add_buffered_data (msg, rel);
- }
- }
- else
- {
- /* Tunnel is unreliable: send to clients directly */
- /* FIXME: accept Out Of Order traffic */
- rel->mid_recv = mid + 1;
- channel_send_client_data (ch, msg, fwd);
- }
- }
- else
- {
- GNUNET_break_op (0);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " MID %u not expected (%u - %u), dropping!\n",
- mid, rel->mid_recv, rel->mid_recv + 64);
- }
-
- channel_send_data_ack (ch, fwd);
-}
-
-/**
- * Handler for mesh network traffic end-to-end ACKs.
- *
- * @param t Tunnel on which we got this message.
- * @param message Data message.
- * @param fwd Is this a fwd ACK? (dest->orig)
- */
-static void
-handle_data_ack (struct MeshTunnel2 *t,
- const struct GNUNET_MESH_DataACK *msg, int fwd)
-{
- struct MeshChannelReliability *rel;
- struct MeshReliableMessage *copy;
- struct MeshReliableMessage *next;
- struct MeshChannel *ch;
- uint32_t ack;
- uint16_t type;
- int work;
-
- type = ntohs (msg->header.type);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a %s message!\n",
- GNUNET_MESH_DEBUG_M2S (type));
- ch = channel_get (t, ntohl (msg->chid));
- if (NULL == ch)
- {
- GNUNET_STATISTICS_update (stats, "# ack on unknown channel", 1, GNUNET_NO);
- return;
- }
- ack = ntohl (msg->mid);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! %s ACK %u\n",
- (GNUNET_YES == fwd) ? "FWD" : "BCK", ack);
-
- if (GNUNET_YES == fwd)
- {
- rel = ch->root_rel;
- }
- else
- {
- rel = ch->dest_rel;
- }
- if (NULL == rel)
- {
- GNUNET_break (0);
- return;
- }
-
- for (work = GNUNET_NO, copy = rel->head_sent; copy != NULL; copy = next)
- {
- if (GMC_is_pid_bigger (copy->mid, ack))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! head %u, out!\n", copy->mid);
- channel_rel_free_sent (rel, msg);
- break;
- }
- work = GNUNET_YES;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! id %u\n", copy->mid);
- next = copy->next;
- rel_message_free (copy);
- }
- /* ACK client if needed */
-// channel_send_ack (t, type, GNUNET_MESSAGE_TYPE_MESH_UNICAST_ACK == type);
-
- /* If some message was free'd, update the retransmission delay*/
- if (GNUNET_YES == work)
- {
- if (GNUNET_SCHEDULER_NO_TASK != rel->retry_task)
- {
- GNUNET_SCHEDULER_cancel (rel->retry_task);
- if (NULL == rel->head_sent)
- {
- rel->retry_task = GNUNET_SCHEDULER_NO_TASK;
- }
- else
- {
- struct GNUNET_TIME_Absolute new_target;
- struct GNUNET_TIME_Relative delay;
-
- delay = GNUNET_TIME_relative_multiply (rel->retry_timer,
- MESH_RETRANSMIT_MARGIN);
- new_target = GNUNET_TIME_absolute_add (rel->head_sent->timestamp,
- delay);
- delay = GNUNET_TIME_absolute_get_remaining (new_target);
- rel->retry_task =
- GNUNET_SCHEDULER_add_delayed (delay,
- &channel_retransmit_message,
- rel);
- }
- }
- else
- GNUNET_break (0);
- }
-}
-
-
-
-
-/**
- * Handler for channel create messages.
- *
- * @param t Tunnel this channel is to be created in.
- * @param msg Message.
- * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
- */
-static void
-handle_channel_create (struct MeshTunnel2 *t,
- struct GNUNET_MESH_ChannelCreate *msg,
- int fwd)
-{
- MESH_ChannelNumber chid;
- struct MeshChannel *ch;
- struct MeshClient *c;
- uint32_t port;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received Channel Create\n");
- /* Check message size */
- if (ntohs (msg->header.size) != sizeof (struct GNUNET_MESH_ChannelCreate))
- {
- GNUNET_break_op (0);
- return;
- }
-
- /* Check if channel exists */
- chid = ntohl (msg->chid);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " chid %u\n", chid);
- ch = channel_get (t, chid);
- if (NULL != ch)
- {
- /* Probably a retransmission, safe to ignore */
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " already exists...\n");
- if (NULL != ch->dest)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " duplicate CC!!\n");
- channel_send_ack (ch, !fwd);
- return;
- }
- }
- else
- {
- /* Create channel */
- ch = channel_new (t, NULL, 0);
- ch->gid = chid;
- channel_set_options (ch, ntohl (msg->opt));
- }
-
- /* Find a destination client */
- port = ntohl (msg->port);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " port %u\n", port);
- c = GNUNET_CONTAINER_multihashmap32_get (ports, port);
- if (NULL == c)
- {
- /* TODO send reject */
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " no client has port registered\n");
- /* TODO free ch */
- return;
- }
-
- channel_add_client (ch, c);
- if (GNUNET_YES == ch->reliable)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! Reliable\n");
-
- send_local_channel_create (ch);
- channel_send_ack (ch, fwd);
- send_local_ack (ch, !fwd);
-}
-
-
-/**
- * Handler for channel ack messages.
- *
- * @param t Tunnel this channel is to be created in.
- * @param msg Message.
- * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
- */
-static void
-handle_channel_ack (struct MeshTunnel2 *t,
- struct GNUNET_MESH_ChannelManage *msg,
- int fwd)
-{
- MESH_ChannelNumber chid;
- struct MeshChannel *ch;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received Channel ACK\n");
- /* Check message size */
- if (ntohs (msg->header.size) != sizeof (struct GNUNET_MESH_ChannelManage))
- {
- GNUNET_break_op (0);
- return;
- }
-
- /* Check if channel exists */
- chid = ntohl (msg->chid);
- ch = channel_get (t, chid);
- if (NULL == ch)
- {
- GNUNET_break_op (0);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " channel %u unknown!!\n", chid);
- return;
- }
-
- channel_confirm (ch, !fwd);
-}
-
-
-/**
- * Handler for channel destroy messages.
- *
- * @param t Tunnel this channel is to be destroyed of.
- * @param msg Message.
- * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
- */
-static void
-handle_channel_destroy (struct MeshTunnel2 *t,
- struct GNUNET_MESH_ChannelManage *msg,
- int fwd)
-{
- MESH_ChannelNumber chid;
- struct MeshChannel *ch;
-
- /* Check message size */
- if (ntohs (msg->header.size) != sizeof (struct GNUNET_MESH_ChannelManage))
- {
- GNUNET_break_op (0);
- return;
- }
-
- /* Check if channel exists */
- chid = ntohl (msg->chid);
- ch = channel_get (t, chid);
- if (NULL == ch)
- {
- /* Probably a retransmission, safe to ignore */
- return;
- }
- if ( (fwd && NULL == ch->dest) || (!fwd && NULL == ch->root) )
- {
- /* Not for us (don't destroy twice a half-open loopback channel) */
- return;
- }
-
- send_local_channel_destroy (ch, fwd);
- channel_destroy (ch);
-}
-
-
static void
handle_decrypted (struct MeshTunnel2 *t,
const struct GNUNET_MessageHeader *msgh,
static void
search_handler (void *cls, struct MeshPeerPath *path)
{
- struct MeshConnection *c;
+// struct MeshConnection *c;
unsigned int connection_count;
path_add_to_peers (path, GNUNET_NO);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "destroying channel %s:%u\n",
peer2s (ch->t->peer), ch->gid);
- channel_debug (ch);
+ GMCH_debug (ch);
c = ch->root;
if (NULL != c)
}
t = ch->t;
+ GMCH_send_destroy (ch);
channel_send_destroy (ch);
channel_destroy (ch);
tunnel_destroy_if_empty (t);
* @param ch Channel that was created.
*/
void
-GMCH_send_channel_create (struct MeshChannel *ch)
+GMCH_send_create (struct MeshChannel *ch)
{
struct GNUNET_MESH_ChannelMessage msg;
struct MeshTunnel2 *t = ch->t;
* @param fwd Forward notification (owner->dest)?
*/
void
-GMCH_send_channel_destroy (struct MeshChannel *ch, int fwd)
+GMCH_send_destroy (struct MeshChannel *ch, int fwd)
{
struct GNUNET_MeshClient *c = fwd ? ch->dest : ch->root;
uint32_t id = fwd ? ch->lid_dest : ch->lid_root;
if (NULL == c)
+ {
+// TODO: send on connection?
return;
+ }
GML_send_channel_destroy (c, id);
}
}
+/**
+ * Handler for mesh network payload traffic.
+ *
+ * @param t Tunnel on which we got this message.
+ * @param message Unencryted data message.
+ * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
+ */
+void
+GMCH_handle_data (struct MeshTunnel2 *t,
+ const struct GNUNET_MESH_Data *msg,
+ int fwd)
+{
+ struct MeshChannelReliability *rel;
+ struct MeshChannel *ch;
+ struct MeshClient *c;
+ uint32_t mid;
+ uint16_t type;
+ size_t size;
+
+ /* Check size */
+ size = ntohs (msg->header.size);
+ if (size <
+ sizeof (struct GNUNET_MESH_Data) +
+ sizeof (struct GNUNET_MessageHeader))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ type = ntohs (msg->header.type);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "got a %s message\n",
+ GNUNET_MESH_DEBUG_M2S (type));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " payload of type %s\n",
+ GNUNET_MESH_DEBUG_M2S (ntohs (msg[1].header.type)));
+
+ /* Check channel */
+ ch = channel_get (t, ntohl (msg->chid));
+ if (NULL == ch)
+ {
+ GNUNET_STATISTICS_update (stats, "# data on unknown channel", 1, GNUNET_NO);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "WARNING channel %u unknown\n",
+ ntohl (msg->chid));
+ return;
+ }
+
+ /* Initialize FWD/BCK data */
+ c = fwd ? ch->dest : ch->root;
+ rel = fwd ? ch->dest_rel : ch->root_rel;
+
+ if (NULL == c)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ tunnel_change_state (t, MESH_TUNNEL_READY);
+
+ GNUNET_STATISTICS_update (stats, "# data received", 1, GNUNET_NO);
+
+ mid = ntohl (msg->mid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " mid %u\n", mid);
+
+ if (GNUNET_NO == ch->reliable ||
+ ( !GMC_is_pid_bigger (rel->mid_recv, mid) &&
+ GMC_is_pid_bigger (rel->mid_recv + 64, mid) ) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! RECV %u\n", mid);
+ if (GNUNET_YES == ch->reliable)
+ {
+ /* Is this the exact next expected messasge? */
+ if (mid == rel->mid_recv)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "as expected\n");
+ rel->mid_recv++;
+ send_client_data (ch, msg, fwd);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "save for later\n");
+ add_buffered_data (msg, rel);
+ }
+ }
+ else
+ {
+ /* Tunnel is unreliable: send to clients directly */
+ /* FIXME: accept Out Of Order traffic */
+ rel->mid_recv = mid + 1;
+ send_client_data (ch, msg, fwd);
+ }
+ }
+ else
+ {
+ GNUNET_break_op (0);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " MID %u not expected (%u - %u), dropping!\n",
+ mid, rel->mid_recv, rel->mid_recv + 64);
+ }
+
+ GMCH_send_ack (ch, fwd);
+}
+
+
+/**
+ * Handler for mesh network traffic end-to-end ACKs.
+ *
+ * @param t Tunnel on which we got this message.
+ * @param message Data message.
+ * @param fwd Is this a fwd ACK? (dest->orig)
+ */
+void
+GMCH_handle_data_ack (struct MeshTunnel2 *t,
+ const struct GNUNET_MESH_DataACK *msg,
+ int fwd)
+{
+ struct MeshChannelReliability *rel;
+ struct MeshReliableMessage *copy;
+ struct MeshReliableMessage *next;
+ struct MeshChannel *ch;
+ uint32_t ack;
+ uint16_t type;
+ int work;
+
+ type = ntohs (msg->header.type);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a %s message!\n",
+ GNUNET_MESH_DEBUG_M2S (type));
+ ch = channel_get (t, ntohl (msg->chid));
+ if (NULL == ch)
+ {
+ GNUNET_STATISTICS_update (stats, "# ack on unknown channel", 1, GNUNET_NO);
+ return;
+ }
+ ack = ntohl (msg->mid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! %s ACK %u\n",
+ (GNUNET_YES == fwd) ? "FWD" : "BCK", ack);
+
+ if (GNUNET_YES == fwd)
+ {
+ rel = ch->root_rel;
+ }
+ else
+ {
+ rel = ch->dest_rel;
+ }
+ if (NULL == rel)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ for (work = GNUNET_NO, copy = rel->head_sent; copy != NULL; copy = next)
+ {
+ if (GMC_is_pid_bigger (copy->mid, ack))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! head %u, out!\n", copy->mid);
+ channel_rel_free_sent (rel, msg);
+ break;
+ }
+ work = GNUNET_YES;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! id %u\n", copy->mid);
+ next = copy->next;
+ rel_message_free (copy);
+ }
+ /* ACK client if needed */
+// channel_send_ack (t, type, GNUNET_MESSAGE_TYPE_MESH_UNICAST_ACK == type);
+
+ /* If some message was free'd, update the retransmission delay*/
+ if (GNUNET_YES == work)
+ {
+ if (GNUNET_SCHEDULER_NO_TASK != rel->retry_task)
+ {
+ GNUNET_SCHEDULER_cancel (rel->retry_task);
+ if (NULL == rel->head_sent)
+ {
+ rel->retry_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ else
+ {
+ struct GNUNET_TIME_Absolute new_target;
+ struct GNUNET_TIME_Relative delay;
+
+ delay = GNUNET_TIME_relative_multiply (rel->retry_timer,
+ MESH_RETRANSMIT_MARGIN);
+ new_target = GNUNET_TIME_absolute_add (rel->head_sent->timestamp,
+ delay);
+ delay = GNUNET_TIME_absolute_get_remaining (new_target);
+ rel->retry_task =
+ GNUNET_SCHEDULER_add_delayed (delay,
+ &channel_retransmit_message,
+ rel);
+ }
+ }
+ else
+ GNUNET_break (0);
+ }
+}
+
+
+/**
+ * Handler for channel create messages.
+ *
+ * @param t Tunnel this channel is to be created 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,
+ int fwd)
+{
+ MESH_ChannelNumber chid;
+ struct MeshChannel *ch;
+ struct MeshClient *c;
+ uint32_t port;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received Channel Create\n");
+ /* Check message size */
+ if (ntohs (msg->header.size) != sizeof (struct GNUNET_MESH_ChannelCreate))
+ {
+ GNUNET_break_op (0);
+ return;
+ }
+
+ /* Check if channel exists */
+ chid = ntohl (msg->chid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " chid %u\n", chid);
+ ch = channel_get (t, chid);
+ if (NULL != ch)
+ {
+ /* Probably a retransmission, safe to ignore */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " already exists...\n");
+ if (NULL != ch->dest)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " duplicate CC!!\n");
+ GMCH_send_ack (ch, !fwd);
+ return;
+ }
+ }
+ else
+ {
+ /* Create channel */
+ ch = channel_new (t, NULL, 0);
+ ch->gid = chid;
+ channel_set_options (ch, ntohl (msg->opt));
+ }
+
+ /* Find a destination client */
+ port = ntohl (msg->port);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " port %u\n", port);
+ c = GNUNET_CONTAINER_multihashmap32_get (ports, port);
+ if (NULL == c)
+ {
+ /* TODO send reject */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " no client has port registered\n");
+ /* TODO free ch */
+ return;
+ }
+
+ channel_add_client (ch, c);
+ if (GNUNET_YES == ch->reliable)
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! Reliable\n");
+
+ GMCH_send_create (ch);
+ GMCH_send_ack (ch, fwd);
+ GML_send_ack (ch, !fwd);
+}
+
+
+/**
+ * Handler for channel ack messages.
+ *
+ * @param t Tunnel this channel is to be created in.
+ * @param msg Message.
+ * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
+ */
+void
+GMCH_handle_ack (struct MeshTunnel2 *t,
+ struct GNUNET_MESH_ChannelManage *msg,
+ int fwd)
+{
+ MESH_ChannelNumber chid;
+ struct MeshChannel *ch;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received Channel ACK\n");
+ /* Check message size */
+ if (ntohs (msg->header.size) != sizeof (struct GNUNET_MESH_ChannelManage))
+ {
+ GNUNET_break_op (0);
+ return;
+ }
+
+ /* Check if channel exists */
+ chid = ntohl (msg->chid);
+ ch = channel_get (t, chid);
+ if (NULL == ch)
+ {
+ GNUNET_break_op (0);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " channel %u unknown!!\n", chid);
+ return;
+ }
+
+ channel_confirm (ch, !fwd);
+}
+
+
+/**
+ * Handler for channel destroy messages.
+ *
+ * @param t Tunnel this channel is to be destroyed of.
+ * @param msg Message.
+ * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
+ */
+void
+GMCH_handle_destroy (struct MeshTunnel2 *t,
+ struct GNUNET_MESH_ChannelManage *msg,
+ int fwd)
+{
+ MESH_ChannelNumber chid;
+ struct MeshChannel *ch;
+
+ /* Check message size */
+ if (ntohs (msg->header.size) != sizeof (struct GNUNET_MESH_ChannelManage))
+ {
+ GNUNET_break_op (0);
+ return;
+ }
+
+ /* Check if channel exists */
+ chid = ntohl (msg->chid);
+ ch = channel_get (t, chid);
+ if (NULL == ch)
+ {
+ /* Probably a retransmission, safe to ignore */
+ return;
+ }
+ if ( (fwd && NULL == ch->dest) || (!fwd && NULL == ch->root) )
+ {
+ /* Not for us (don't destroy twice a half-open loopback channel) */
+ return;
+ }
+
+ GMCH_send_destroy (ch, fwd);
+ channel_destroy (ch);
+}
+
* @param ch Channel that was created.
*/
void
-GMCH_send_channel_create (struct MeshChannel *ch);
+GMCH_send_create (struct MeshChannel *ch);
/**
* @param fwd Forward notification (owner->dest)?
*/
void
-GMCH_send_channel_destroy (struct MeshChannel *ch, int fwd);
+GMCH_send_destroy (struct MeshChannel *ch, int fwd);
/**
void
GMCH_debug (struct MeshChannel *ch);
+
+/**
+ * Handler for mesh network payload traffic.
+ *
+ * @param t Tunnel on which we got this message.
+ * @param message Unencryted data message.
+ * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
+ */
+void
+GMCH_handle_data (struct MeshTunnel2 *t,
+ const struct GNUNET_MESH_Data *msg,
+ int fwd);
+
+
+/**
+ * Handler for mesh network traffic end-to-end ACKs.
+ *
+ * @param t Tunnel on which we got this message.
+ * @param message Data message.
+ * @param fwd Is this a fwd ACK? (dest->orig)
+ */
+void
+GMCH_handle_data_ack (struct MeshTunnel2 *t,
+ const struct GNUNET_MESH_DataACK *msg,
+ int fwd);
+
+
+/**
+ * Handler for channel create messages.
+ *
+ * @param t Tunnel this channel is to be created 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,
+ int fwd);
+
+
+/**
+ * Handler for channel ack messages.
+ *
+ * @param t Tunnel this channel is to be created in.
+ * @param msg Message.
+ * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
+ */
+void
+GMCH_handle_ack (struct MeshTunnel2 *t,
+ struct GNUNET_MESH_ChannelManage *msg,
+ int fwd);
+
+
+/**
+ * Handler for channel destroy messages.
+ *
+ * @param t Tunnel this channel is to be destroyed of.
+ * @param msg Message.
+ * @param fwd Is this FWD traffic? GNUNET_YES : GNUNET_NO;
+ */
+void
+GMCH_handle_destroy (struct MeshTunnel2 *t,
+ struct GNUNET_MESH_ChannelManage *msg,
+ int fwd);
+
+
+
+
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif
}
}
}
- return (path->length + overlap) * (path->score * -1);
+ return (path->length + overlap) * (path->score * -1);
}
projects / oweals / gnunet.git / commitdiff