#define LOG(level, ...) GNUNET_log_from(level,"mesh-tun",__VA_ARGS__)
+#define START_FUNCTION LOG(GNUNET_ERROR_TYPE_DEBUG, "%s start\n", __FUNCTION__)
+#define END_FUNCTION LOG(GNUNET_ERROR_TYPE_DEBUG, "%s end\n", __FUNCTION__)
+
/******************************************************************************/
/******************************** STRUCTS **********************************/
const struct GNUNET_MESH_ChannelCreate *msg,
int fwd)
{
+ ;
+
struct MeshTChannel *tch;
struct MeshChannel *ch;
size_t size;
tch = GNUNET_new (struct MeshTChannel);
tch->ch = ch;
GNUNET_CONTAINER_DLL_insert (t->channel_head, t->channel_tail, tch);
+
+ ;
}
void
* @param fwd Is this message fwd?
*/
static void
-handle_GMT_decrypted (struct MeshTunnel3 *t,
+handle_decrypted (struct MeshTunnel3 *t,
const struct GNUNET_MessageHeader *msgh,
int fwd)
{
* for every message.
*
* @param t Tunnel this message came on.
- * @param msgh Encrypted message.
+ * @param msg Encrypted message.
* @param fwd Is this message fwd?
*/
void
while (off < payload_size)
{
msgh = (struct GNUNET_MessageHeader *) &cbuf[off];
- handle_GMT_decrypted (t, msgh, fwd);
+ handle_decrypted (t, msgh, fwd);
off += ntohs (msgh->size);
}
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"GMT_send_queued_data on tunnel %s\n",
- GMP_2s (t->peer));
+ GMT_2s (t));
room = GMT_get_buffer (t, fwd);
LOG (GNUNET_ERROR_TYPE_DEBUG, " buffer space: %u\n", room);
for (tq = t->tq_head; NULL != tq && room > 0; tq = next)
{
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " data on channel %s\n", GMCH_2s (tq->ch));
next = tq->next;
room--;
GNUNET_CONTAINER_DLL_remove (t->tq_head, t->tq_tail, tq);
GNUNET_free (tq);
}
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "GMT_send_queued_data end\n",
+ GMP_2s (t->peer));
}
for (count = 0, iter = t->channel_head;
NULL != iter;
- iter = iter->next, count++);
+ iter = iter->next, count++) /* skip */;
return count;
}
/**
* Get the total buffer space for a tunnel.
*
+ * If terminal, use the biggest channel buffer (or 64) if no channel exists.
+ * If not terminal, use the sum of all connection buffers.
+ *
* @param t Tunnel.
* @param fwd Is this for FWD traffic?
*
- * @return Buffer space offered by all connections in the tunnel.
+ * @return Buffer space offered by all entities (c/ch) in the tunnel.
*/
unsigned int
GMT_get_buffer (struct MeshTunnel3 *t, int fwd)
if (NULL == t->channel_head)
{
- /* Probably getting buffer for a channel create. */
+ /* Probably getting buffer for a channel create/handshake. */
return 64;
}
}
+/**
+ * Send ACK on one or more channels due to buffer in connections..
+ *
+ * @param t Channel which has some free buffer space.
+ * @param fwd Is this for FWD traffic? (ACK goes to root)
+ */
+void
+GMT_unchoke_channels (struct MeshTunnel3 *t, int fwd)
+{
+ struct MeshTChannel *iter;
+ unsigned int buffer;
+ unsigned int channels = GMT_count_channels (t);
+ unsigned int choked_n;
+ struct MeshChannel *choked[channels];
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "GMT_unchoke_channels on %s\n", GMT_2s (t));
+
+ if (NULL == t)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ /* Get buffer space */
+ buffer = GMT_get_buffer (t, fwd);
+ if (0 == buffer)
+ {
+ return;
+ }
+
+ /* Count and remember choked channels */
+ choked_n = 0;
+ for (iter = t->channel_head; NULL != iter; iter = iter->next)
+ {
+ if (GNUNET_NO == GMCH_get_allowed (iter->ch, fwd))
+ {
+ choked[choked_n++] = iter->ch;
+ }
+ }
+
+ /* Unchoke random channels */
+ while (0 < buffer && 0 < choked_n)
+ {
+ unsigned int r = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+ choked_n);
+ GMCH_allow_client (choked[r], fwd);
+ choked_n--;
+ buffer--;
+ choked[r] = choked[choked_n];
+ }
+}
+
+
/**
* Send ACK on one or more connections due to buffer space to the client.
*
* Iterates all connections of the tunnel and sends ACKs appropriately.
*
- * @param ch Channel which has some free buffer space.
+ * @param t Tunnel.
* @param fwd Is this in for FWD traffic? (ACK goes dest->root)
*/
void
-GMT_send_acks (struct MeshTunnel3 *t, unsigned int buffer, int fwd)
+GMT_send_acks (struct MeshTunnel3 *t, int fwd)
{
struct MeshTConnection *iter;
uint32_t allowed;
uint32_t to_allow;
uint32_t allow_per_connection;
unsigned int cs;
+ unsigned int buffer;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Tunnel send acks on %s:%X\n",
- fwd ? "FWD" : "BCK", GMT_2s (t));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Tunnel send %s ACKs on %s\n",
+ fwd ? "FWD" : "BCK", GMT_2s (t));
if (NULL == t)
{
return;
}
if (NULL == t->channel_head ||
- GNUNET_NO == GMCH_is_origin (t->channel_head->ch, fwd))
+ GNUNET_NO == GMCH_is_origin (t->channel_head->ch, !fwd))
{
GNUNET_break (0);
return;
}
+ buffer = GMT_get_buffer (t, fwd);
+
/* Count connections, how many messages are already allowed */
cs = GMT_count_connections (t);
for (allowed = 0, iter = t->connection_head; NULL != iter; iter = iter->next)
uint64_t iv;
uint16_t type;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Send on Tunnel %s\n", GMP_2s (t->peer));
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "GMT Send on Tunnel %s\n", GMP_2s (t->peer));
iv = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_NONCE, UINT64_MAX);
msg = (struct GNUNET_MESH_Encrypted *) cbuf;
type = ntohs (message->type);
switch (type)
{
- case GNUNET_MESSAGE_TYPE_MESH_FWD:
- case GNUNET_MESSAGE_TYPE_MESH_BCK:
+ case GNUNET_MESSAGE_TYPE_MESH_DATA:
case GNUNET_MESSAGE_TYPE_MESH_CHANNEL_CREATE:
case GNUNET_MESSAGE_TYPE_MESH_CHANNEL_DESTROY:
+ case GNUNET_MESSAGE_TYPE_MESH_CHANNEL_ACK:
msg->cid = *GMC_get_id (c);
msg->ttl = htonl (default_ttl);
break;