#define MESH_MAX_POLL_TIME GNUNET_TIME_relative_multiply (\
GNUNET_TIME_UNIT_MINUTES,\
10)
+#define MESH_RETRANSMIT_TIME GNUNET_TIME_UNIT_SECONDS
+#define MESH_RETRANSMIT_MARGIN 4
#if MESH_DEBUG_CONNECTION
#define DEBUG_CONN(...) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
/**
- * Info needed to retry a message in case it gets lost.
+ * Data needed for reliable tunnel endpoint retransmission management.
*/
-struct MeshSentMessage {
+struct MeshTunnelReliability;
- /**
- * Tunnel this message is in.
- */
- struct MeshTunnel *t;
- /**
- * ID of the message (ACK needed to free)
- */
- uint32_t id;
+/**
+ * Info needed to retry a message in case it gets lost.
+ */
+struct MeshReliableMessage
+{
+ /**
+ * Double linked list, FIFO style
+ */
+ struct MeshReliableMessage *next;
+ struct MeshReliableMessage *prev;
- /**
- * Task to resend/poll in case no ACK is received.
- */
- GNUNET_SCHEDULER_TaskIdentifier retry_task; // FIXME move to per tunnel timer?
+ /**
+ * Tunnel Reliability queue this message is in.
+ */
+ struct MeshTunnelReliability *rel;
- /**
- * Counter for exponential backoff.
- */
- struct GNUNET_TIME_Relative retry_timer;
+ /**
+ * ID of the message (ACK needed to free)
+ */
+ uint64_t mid;
- /**
- * Is this a forward or backward going message?
- */
- int is_forward;
+ /**
+ * When was this message issued (to calculate ACK delay) FIXME update with traffic
+ */
+ struct GNUNET_TIME_Absolute timestamp;
/* struct GNUNET_MESH_Data with payload */
};
+
+struct MeshTunnelReliability
+{
+ /**
+ * Tunnel this is about.
+ */
+ struct MeshTunnel *t;
+
+ /**
+ * DLL of messages sent and not yet ACK'd.
+ */
+ struct MeshReliableMessage *head_sent;
+ struct MeshReliableMessage *tail_sent;
+
+ /**
+ * Messages pending
+ */
+ unsigned int n_sent;
+
+ /**
+ * Next MID to use.
+ */
+ uint64_t mid_sent;
+
+ /**
+ * DLL of messages received out of order.
+ */
+ struct MeshReliableMessage *head_recv;
+ struct MeshReliableMessage *tail_recv;
+
+ /**
+ * Next MID expected.
+ */
+ uint64_t mid_recv;
+
+ /**
+ * Task to resend/poll in case no ACK is received.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier retry_task;
+
+ /**
+ * Counter for exponential backoff.
+ */
+ struct GNUNET_TIME_Relative retry_timer;
+
+ /**
+ * How long does it usually take to get an ACK. FIXME update with traffic
+ */
+ struct GNUNET_TIME_Relative expected_delay;
+};
+
+
/**
* Struct containing all information regarding a tunnel
* For an intermediate node the improtant info used will be:
*/
unsigned int pending_messages;
- /**
- * Messages sent and not yet ACK'd.
- * Only present (non-NULL) at the owner of a tunnel.
- */
- struct GNUNET_CONTAINER_MultiHashMap32 *sent_messages_fwd;
+ /**
+ * Reliability data.
+ * Only present (non-NULL) at the owner of a tunnel.
+ */
+ struct MeshTunnelReliability *fwd_rel;
- /**
- * Messages sent and not yet ACK'd.
- * Only present (non-NULL) at the destination of a tunnel.
- */
- struct GNUNET_CONTAINER_MultiHashMap32 *sent_messages_bck;
+ /**
+ * Reliability data.
+ * Only present (non-NULL) at the destination of a tunnel.
+ */
+ struct MeshTunnelReliability *bck_rel;
};
/**
* Tunnels that belong to this client, indexed by local id
*/
- struct GNUNET_CONTAINER_MultiHashMap *own_tunnels;
+ struct GNUNET_CONTAINER_MultiHashMap32 *own_tunnels;
/**
* Tunnels this client has accepted, indexed by incoming local id
*/
- struct GNUNET_CONTAINER_MultiHashMap *incoming_tunnels;
+ struct GNUNET_CONTAINER_MultiHashMap32 *incoming_tunnels;
/**
* Handle to communicate with the client
/**
* Ports that this client has declared interest in.
- * Indexed by a GMC_hash32 (type), contains *Client.
+ * Indexed by port, contains *Client.
*/
- struct GNUNET_CONTAINER_MultiHashMap *ports;
+ struct GNUNET_CONTAINER_MultiHashMap32 *ports;
/**
* Whether the client is active or shutting down (don't send confirmations
/*************************** Static global variables **************************/
-/**
- * Hostkey generation context
- */
-static struct GNUNET_CRYPTO_EccKeyGenerationContext *keygen;
-
/**
* DLL with all the clients, head.
*/
* Tunnels incoming, indexed by MESH_TunnelNumber
* (which is greater than GNUNET_MESH_LOCAL_TUNNEL_ID_SERV).
*/
-static struct GNUNET_CONTAINER_MultiHashMap *incoming_tunnels;
+static struct GNUNET_CONTAINER_MultiHashMap32 *incoming_tunnels;
/**
* Peers known, indexed by PeerIdentity (MeshPeerInfo).
/**
* All ports clients of this peer have opened.
*/
-static struct GNUNET_CONTAINER_MultiHashMap *ports;
+static struct GNUNET_CONTAINER_MultiHashMap32 *ports;
/**
* Task to periodically announce itself in the network.
static struct MeshClient *
client_get (struct GNUNET_SERVER_Client *client)
{
- struct MeshClient *c;
-
- c = clients_head;
- while (NULL != c)
- {
- if (c->handle == client)
- return c;
- c = c->next;
- }
- return NULL;
+ return GNUNET_SERVER_client_get_user_context (client, struct MeshClient);
}
static void
client_delete_tunnel (struct MeshClient *c, struct MeshTunnel *t)
{
- struct GNUNET_HashCode hash;
-
if (c == t->owner)
{
- GMC_hash32 (t->local_tid, &hash);
GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (c->own_tunnels,
- &hash,
- t));
+ GNUNET_CONTAINER_multihashmap32_remove (c->own_tunnels,
+ t->local_tid,
+ t));
}
- else if (c == t->client)
+ if (c == t->client)
{
- GMC_hash32 (t->local_tid_dest, &hash);
GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (c->incoming_tunnels,
- &hash,
- t));
- }
- else
- {
- GNUNET_break (0);
+ GNUNET_CONTAINER_multihashmap32_remove (c->incoming_tunnels,
+ t->local_tid_dest,
+ t));
}
}
msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_CREATE);
msg.tunnel_id = htonl (t->local_tid_dest);
msg.port = htonl (t->port);
+ msg.opt = 0;
+ msg.opt |= GNUNET_YES == t->reliable ? GNUNET_MESH_OPTION_RELIABLE : 0;
+ msg.opt |= GNUNET_YES == t->nobuffer ? GNUNET_MESH_OPTION_NOBUFFER : 0;
+ msg.opt = htonl (msg.opt);
GNUNET_PEER_resolve (t->id.oid, &msg.peer);
GNUNET_SERVER_notification_context_unicast (nc, t->client->handle,
&msg.header, GNUNET_NO);
return;
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " *** Polling!\n");
+
msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_POLL);
msg.header.size = htons (sizeof (msg));
msg.tid = htonl (t->id.tid);
+ msg.pid = htonl (fc->last_pid_sent);
GNUNET_PEER_resolve (t->id.oid, &msg.oid);
if (fc == &t->prev_fc)
{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " *** prev peer!\n");
peer = t->prev_hop;
}
else if (fc == &t->next_fc)
{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " *** next peer!\n");
peer = t->next_hop;
}
else
static struct MeshTunnel *
tunnel_get_incoming (MESH_TunnelNumber tid)
{
- struct GNUNET_HashCode hash;
-
GNUNET_assert (tid >= GNUNET_MESH_LOCAL_TUNNEL_ID_SERV);
- GMC_hash32 (tid, &hash);
- return GNUNET_CONTAINER_multihashmap_get (incoming_tunnels, &hash);
+ return GNUNET_CONTAINER_multihashmap32_get (incoming_tunnels, tid);
}
}
else
{
- struct GNUNET_HashCode hash;
-
- GMC_hash32 (tid, &hash);
- return GNUNET_CONTAINER_multihashmap_get (c->own_tunnels, &hash);
+ GNUNET_assert (tid >= GNUNET_MESH_LOCAL_TUNNEL_ID_CLI);
+ return GNUNET_CONTAINER_multihashmap32_get (c->own_tunnels, tid);
}
}
static void
tunnel_add_client (struct MeshTunnel *t, struct MeshClient *c)
{
- struct GNUNET_HashCode hash;
-
if (NULL != t->client)
{
GNUNET_break(0);
return;
}
- GMC_hash32 (t->local_tid_dest, &hash);
if (GNUNET_OK !=
- GNUNET_CONTAINER_multihashmap_put (c->incoming_tunnels, &hash, t,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
+ GNUNET_CONTAINER_multihashmap32_put (c->incoming_tunnels,
+ t->local_tid_dest, t,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
{
GNUNET_break (0);
return;
}
if (GNUNET_OK !=
- GNUNET_CONTAINER_multihashmap_put (incoming_tunnels, &hash, t,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
+ GNUNET_CONTAINER_multihashmap32_put (incoming_tunnels,
+ t->local_tid_dest, t,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
{
GNUNET_break (0);
return;
*
* @param t Tunnel on which to send the ACK.
* @param c Client to whom send the ACK.
- * @param ack Value of the ACK.
* @param is_fwd Set to GNUNET_YES for FWD ACK (dest->owner)
*/
static void
send_local_ack (struct MeshTunnel *t,
struct MeshClient *c,
- uint32_t ack,
int is_fwd)
{
struct GNUNET_MESH_LocalAck msg;
msg.header.size = htons (sizeof (msg));
msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK);
msg.tunnel_id = htonl (is_fwd ? t->local_tid : t->local_tid_dest);
- msg.ack = htonl (ack);
- GNUNET_SERVER_notification_context_unicast(nc,
+ GNUNET_SERVER_notification_context_unicast (nc,
c->handle,
&msg.header,
GNUNET_NO);
}
+/**
+ * Send an end-to-end FWD ACK message for the most recent in-sequence payload.
+ *
+ * @param t Tunnel this is about.
+ */
+static void
+tunnel_send_fwd_data_ack (struct MeshTunnel *t)
+{
+ struct GNUNET_MESH_DataACK msg;
+ struct MeshTunnelReliability *rel;
+ struct MeshReliableMessage *copy;
+ uint64_t mask;
+ unsigned int i;
+ unsigned int delta;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "send_fwd_data_ack for %llu\n",
+ t->bck_rel->mid_recv - 1);
+ msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_UNICAST_ACK);
+ msg.header.size = htons (sizeof (msg));
+ msg.tid = htonl (t->id.tid);
+ GNUNET_PEER_resolve (t->id.oid, &msg.oid);
+ msg.mid = GNUNET_htonll (t->bck_rel->mid_recv - 1);
+ msg.futures = 0;
+ rel = t->bck_rel;
+ for (i = 0, copy = rel->head_recv;
+ i < 64 && NULL != copy;
+ i++, copy = copy->next)
+ {
+ delta = copy->mid - t->bck_rel->mid_recv;
+ mask = 0x1 << delta;
+ msg.futures |= mask;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " setting bit for %u (delta %u) (%llX) -> %llX\n",
+ copy->mid, delta, mask, msg.futures);
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " final futures %llX\n", msg.futures);
+
+ send_prebuilt_message (&msg.header, t->prev_hop, t);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "send_fwd_data_ack END\n");
+}
+
+
+/**
+ * Send an end-to-end BCK ACK message for the most recent in-sequence payload.
+ *
+ * @param t Tunnel this is about.
+ */
+static void
+tunnel_send_bck_data_ack (struct MeshTunnel *t)
+{
+ struct GNUNET_MESH_DataACK msg;
+
+ msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_TO_ORIG_ACK);
+ msg.header.size = htons (sizeof (msg));
+ msg.tid = htonl (t->id.tid);
+ GNUNET_PEER_resolve (t->id.oid, &msg.oid);
+ msg.mid = GNUNET_htonll (t->fwd_rel->mid_recv - 1);
+ msg.futures = 0; // FIXME set bits of other newer messages received
+
+ send_prebuilt_message (&msg.header, t->next_hop, t);
+}
+
+
/**
* Send an ACK informing the predecessor about the available buffer space.
* In case there is no predecessor, inform the owning client.
tunnel_send_fwd_ack (struct MeshTunnel *t, uint16_t type)
{
uint32_t ack;
+ int delta;
/* Is it after unicast retransmission? */
switch (type)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Not sending ACK, nobuffer\n");
return;
}
+ if (GNUNET_YES == t->reliable && NULL != t->client)
+ tunnel_send_fwd_data_ack (t);
break;
case GNUNET_MESSAGE_TYPE_MESH_ACK:
- if (NULL != t->owner && GNUNET_YES == t->reliable)
- return;
case GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK:
break;
- case GNUNET_MESSAGE_TYPE_MESH_PATH_ACK:
case GNUNET_MESSAGE_TYPE_MESH_POLL:
- case GNUNET_MESSAGE_TYPE_MESH_DATA_ACK:
+ case GNUNET_MESSAGE_TYPE_MESH_PATH_ACK:
t->force_ack = GNUNET_YES;
break;
default:
}
/* Check if we need to transmit the ACK */
- if (t->queue_max > t->next_fc.queue_n * 4 &&
+ if (0 && NULL == t->owner &&
+ t->queue_max > t->next_fc.queue_n * 4 &&
GMC_is_pid_bigger(t->prev_fc.last_ack_sent, t->prev_fc.last_pid_recv) &&
GNUNET_NO == t->force_ack)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Not sending ACK, buffer free\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Not sending FWD ACK, buffer free\n");
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
" t->qmax: %u, t->qn: %u\n",
t->queue_max, t->next_fc.queue_n);
}
/* Ok, ACK might be necessary, what PID to ACK? */
- ack = t->prev_fc.last_pid_recv + t->queue_max - t->next_fc.queue_n;
+ delta = t->queue_max - t->next_fc.queue_n;
+ if (0 > delta || (GNUNET_YES == t->reliable &&
+ NULL != t->owner &&
+ t->fwd_rel->n_sent > 10))
+ delta = 0;
+ if (NULL != t->owner && delta > 1)
+ delta = 1;
+ ack = t->prev_fc.last_pid_recv + delta;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " FWD ACK %u\n", ack);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " last %u, qmax %u, q %u\n",
+ t->prev_fc.last_pid_recv, t->queue_max, t->next_fc.queue_n);
if (ack == t->prev_fc.last_ack_sent && GNUNET_NO == t->force_ack)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Not sending FWD ACK, not needed\n");
t->prev_fc.last_ack_sent = ack;
if (NULL != t->owner)
- send_local_ack (t, t->owner, ack, GNUNET_YES);
+ send_local_ack (t, t->owner, GNUNET_YES);
else if (0 != t->prev_hop)
send_ack (t, t->prev_hop, ack);
else
" Not sending ACK, nobuffer + traffic\n");
return;
}
+ if (GNUNET_YES == t->reliable && NULL != t->owner)
+ tunnel_send_bck_data_ack (t);
break;
case GNUNET_MESSAGE_TYPE_MESH_ACK:
- if (NULL != t->client && GNUNET_YES == t->reliable)
- return;
case GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK:
break;
case GNUNET_MESSAGE_TYPE_MESH_PATH_ACK:
case GNUNET_MESSAGE_TYPE_MESH_POLL:
- case GNUNET_MESSAGE_TYPE_MESH_DATA_ACK:
t->force_ack = GNUNET_YES;
break;
default:
t->next_fc.last_ack_sent = ack;
if (NULL != t->client)
- send_local_ack (t, t->client, ack, GNUNET_NO);
+ send_local_ack (t, t->client, GNUNET_NO);
else if (0 != t->next_hop)
send_ack (t, t->next_hop, ack);
else
/**
- * Modify the unicast message TID from global to local and send to client.
+ * Modify the mesh message TID from global to local and send to client.
*
* @param t Tunnel on which to send the message.
* @param msg Message to modify and send.
+ * @param c Client to send to.
+ * @param tid Tunnel ID to use (c can be both owner and client).
*/
static void
-tunnel_send_client_ucast (struct MeshTunnel *t,
- const struct GNUNET_MESH_Data *msg)
+tunnel_send_client_data (struct MeshTunnel *t,
+ const struct GNUNET_MESH_Data *msg,
+ struct MeshClient *c, MESH_TunnelNumber tid)
{
- struct GNUNET_MESH_Data *copy;
- uint16_t size = ntohs (msg->header.size);
- char cbuf[size];
+ struct GNUNET_MESH_LocalData *copy;
+ uint16_t size = ntohs (msg->header.size) - sizeof (struct GNUNET_MESH_Data);
+ char cbuf[size + sizeof (struct GNUNET_MESH_LocalData)];
- if (size < sizeof (struct GNUNET_MESH_Data) +
- sizeof (struct GNUNET_MessageHeader))
+ if (size < sizeof (struct GNUNET_MessageHeader))
{
GNUNET_break_op (0);
return;
}
- if (NULL == t->client)
+ if (NULL == c)
{
GNUNET_break (0);
return;
}
- copy = (struct GNUNET_MESH_Data *) cbuf;
- memcpy (copy, msg, size);
- copy->tid = htonl (t->local_tid_dest);
- GNUNET_SERVER_notification_context_unicast (nc, t->client->handle,
+ copy = (struct GNUNET_MESH_LocalData *) cbuf;
+ memcpy (©[1], &msg[1], size);
+ copy->header.size = htons (sizeof (struct GNUNET_MESH_LocalData) + size);
+ copy->header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_DATA);
+ copy->tid = htonl (tid);
+ GNUNET_SERVER_notification_context_unicast (nc, c->handle,
©->header, GNUNET_NO);
}
-
/**
- * Modify the to_origin message TID from global to local and send to client.
+ * Modify the unicast message TID from global to local and send to client.
*
* @param t Tunnel on which to send the message.
* @param msg Message to modify and send.
*/
static void
-tunnel_send_client_to_orig (struct MeshTunnel *t,
- const struct GNUNET_MESH_Data *msg)
+tunnel_send_client_ucast (struct MeshTunnel *t,
+ const struct GNUNET_MESH_Data *msg)
{
- struct GNUNET_MESH_Data *copy;
- uint16_t size = ntohs (msg->header.size);
- char cbuf[size];
+ tunnel_send_client_data (t, msg, t->client, t->local_tid_dest);
+}
+
+
+/**
+ * Send up to 64 buffered messages to the client for in order delivery.
+ *
+ * @param t Tunnel on which to empty the message buffer.
+ */
+static void
+tunnel_send_client_buffered_ucast (struct MeshTunnel *t)
+{
+ struct MeshTunnelReliability *rel;
+ struct MeshReliableMessage *copy;
+ struct MeshReliableMessage *next;
- if (size < sizeof (struct GNUNET_MESH_Data) +
- sizeof (struct GNUNET_MessageHeader))
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "send_buffered_unicast\n");
+ rel = t->bck_rel;
+ for (copy = rel->head_recv; NULL != copy; copy = next)
{
- GNUNET_break_op (0);
- return;
+ next = copy->next;
+ if (copy->mid == rel->mid_recv)
+ {
+ struct GNUNET_MESH_Data *msg = (struct GNUNET_MESH_Data *) ©[1];
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " have %llu! now expecting %llu\n",
+ copy->mid, rel->mid_recv + 1LL);
+ tunnel_send_client_ucast (t, msg);
+ rel->mid_recv++;
+ GNUNET_CONTAINER_DLL_remove (rel->head_recv, rel->tail_recv, copy);
+ GNUNET_free (copy);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " don't have %llu, (%llu)\n",
+ rel->mid_recv,
+ copy->mid);
+ return;
+ }
}
- if (NULL == t->owner)
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "send_buffered_unicast END\n");
+}
+
+
+/**
+ * We have received a message out of order, buffer it until we receive
+ * the missing one and we can feed the rest to the client.
+ */
+static void
+tunnel_add_buffer_ucast (struct MeshTunnel *t,
+ const struct GNUNET_MESH_Data *msg)
+{
+ struct MeshTunnelReliability *rel;
+ struct MeshReliableMessage *copy;
+ struct MeshReliableMessage *prev;
+ uint64_t mid;
+ uint16_t size;
+
+ rel = t->bck_rel;
+ size = ntohs (msg->header.size);
+ mid = GNUNET_ntohll (msg->mid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "add_buffer_ucast %llu\n", mid);
+
+ copy = GNUNET_malloc (sizeof (*copy) + size);
+ copy->mid = mid;
+ copy->rel = rel;
+ memcpy (©[1], msg, size);
+
+ // FIXME do something better than O(n), although n < 64...
+ for (prev = rel->head_recv; NULL != prev; prev = prev->next)
{
- GNUNET_break (0);
- return;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " prev %llu\n", prev->mid);
+ if (mid < prev->mid)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " bingo!\n");
+ GNUNET_CONTAINER_DLL_insert_before (rel->head_recv, rel->tail_recv,
+ prev, copy);
+ return;
+ }
}
- copy = (struct GNUNET_MESH_Data *) cbuf;
- memcpy (cbuf, msg, size);
- copy->tid = htonl (t->local_tid);
- GNUNET_SERVER_notification_context_unicast (nc, t->owner->handle,
- ©->header, GNUNET_NO);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " insert at tail!\n");
+ GNUNET_CONTAINER_DLL_insert_tail (rel->head_recv, rel->tail_recv, copy);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "add_buffer_ucast END\n");
+}
+
+
+/**
+ * Mark future messages as ACK'd.
+ *
+ * @param t Tunnel whose sent buffer to clean.
+ * @param msg DataACK message with a bitfield of future ACK'd messages.
+ */
+static void
+tunnel_free_buffer_ucast (struct MeshTunnel *t,
+ const struct GNUNET_MESH_DataACK *msg)
+{
+ struct MeshTunnelReliability *rel;
+ struct MeshReliableMessage *copy;
+ struct MeshReliableMessage *next;
+ uint64_t bitfield;
+ uint64_t mask;
+ uint64_t mid;
+ uint64_t target;
+ unsigned int i;
+
+ bitfield = msg->futures;
+ mid = GNUNET_ntohll (msg->mid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "free_sent_buffer %llu %llX\n",
+ mid, bitfield);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " rel %p, copy %p\n",
+ mid, bitfield);
+ rel = t->fwd_rel;
+ for (i = 0, copy = rel->head_recv;
+ i < 64 && NULL != copy && 0 != bitfield;
+ i++, copy = next)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " trying %u\n", i);
+ mask = 0x1LL << i;
+ if (0 == (bitfield & mask))
+ continue;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " set!\n");
+ /* Bit was set, clear the bit from the bitfield */
+ bitfield &= ~mask;
+
+ /* The i-th bit was set. Do we have that copy? */
+ /* Skip copies with mid < target */
+ target = mid + i + 1;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " target %llu\n", target);
+ while (NULL != copy && copy->mid < target)
+ copy = copy->next;
+
+ /* Did we run out of copies? (previously freed, it's ok) */
+ if (NULL == copy)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "run out of copies...\n");
+ return;
+ }
+
+ /* Did we overshoot the target? (previously freed, it's ok) */
+ if (copy->mid > target)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " next copy %llu\n", copy->mid);
+ next = copy;
+ continue;
+ }
+
+ /* Now copy->mid == target, free it */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! Freeing %llu\n", target);
+ copy = copy->next;
+ GNUNET_CONTAINER_DLL_remove (rel->head_sent, rel->tail_sent, copy);
+ GNUNET_free (copy);
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "free_sent_buffer END\n");
+}
+
+
+/**
+ * Modify the to_origin message TID from global to local and send to client.
+ *
+ * @param t Tunnel on which to send the message.
+ * @param msg Message to modify and send.
+ */
+static void
+tunnel_send_client_to_orig (struct MeshTunnel *t,
+ const struct GNUNET_MESH_Data *msg)
+{
+ tunnel_send_client_data (t, msg, t->owner, t->local_tid);
}
/**
* We haven't received an ACK after a certain time: restransmit the message.
*
- * @param cls Closure (MeshSentMessage with the message to restransmit)
+ * @param cls Closure (MeshReliableMessage with the message to restransmit)
* @param tc TaskContext.
*/
static void
tunnel_retransmit_message (void *cls,
const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- struct MeshSentMessage *copy = cls;
+ struct MeshTunnelReliability *rel = cls;
+ struct MeshReliableMessage *copy;
+ struct MeshFlowControl *fc;
+ struct MeshPeerQueue *q;
+ struct MeshPeerInfo *pi;
+ struct MeshTunnel *t;
struct GNUNET_MESH_Data *payload;
GNUNET_PEER_Id hop;
- copy->retry_task = GNUNET_SCHEDULER_NO_TASK;
+ rel->retry_task = GNUNET_SCHEDULER_NO_TASK;
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
+ t = rel->t;
+ copy = rel->head_sent;
+ if (NULL == copy)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ /* Search the message to be retransmitted in the outgoing queue */
payload = (struct GNUNET_MESH_Data *) ©[1];
- hop = copy->is_forward ? copy->t->next_hop : copy->t->prev_hop;
- send_prebuilt_message (&payload->header, hop, copy->t);
- GNUNET_STATISTICS_update (stats, "# unicast retransmitted", 1, GNUNET_NO);
- copy->retry_timer = GNUNET_TIME_STD_BACKOFF (copy->retry_timer);
- copy->retry_task = GNUNET_SCHEDULER_add_delayed (copy->retry_timer,
- &tunnel_retransmit_message,
- cls);
+ hop = rel == t->fwd_rel ? t->next_hop : t->prev_hop;
+ fc = rel == t->fwd_rel ? &t->prev_fc : &t->next_fc;
+ pi = peer_get_short (hop);
+ for (q = pi->queue_head; NULL != q; q = q->next)
+ {
+ if (ntohs (payload->header.type) == q->type)
+ {
+ struct GNUNET_MESH_Data *queued_data = q->cls;
+
+ if (queued_data->mid == payload->mid)
+ break;
+ }
+ }
+
+ /* Message not found in the queue */
+ if (NULL == q)
+ {
+ struct GNUNET_TIME_Relative diff;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! RETRANSMIT %llu\n", copy->mid);
+ diff = GNUNET_TIME_absolute_get_duration (copy->timestamp);
+ diff = GNUNET_TIME_relative_divide (diff, 10);
+ copy->timestamp = GNUNET_TIME_absolute_subtract (GNUNET_TIME_absolute_get(),
+ diff);
+
+ fc->last_ack_sent++;
+ payload->pid = htonl (fc->last_pid_recv + 1);
+ fc->last_pid_recv++;
+ send_prebuilt_message (&payload->header, hop, t);
+ GNUNET_STATISTICS_update (stats, "# data retransmitted", 1, GNUNET_NO);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! STILL IN QUEUE %llu\n", copy->mid);
+ }
+
+ rel->retry_timer = GNUNET_TIME_STD_BACKOFF (rel->retry_timer);
+ rel->retry_task = GNUNET_SCHEDULER_add_delayed (rel->retry_timer,
+ &tunnel_retransmit_message,
+ cls);
}
if (NULL != c)
{
- GMC_hash32 (t->local_tid, &hash);
if (GNUNET_YES !=
- GNUNET_CONTAINER_multihashmap_remove (c->own_tunnels, &hash, t))
+ GNUNET_CONTAINER_multihashmap32_remove (c->own_tunnels, t->local_tid, t))
{
GNUNET_break (0);
r = GNUNET_SYSERR;
if (NULL != t->client)
{
c = t->client;
- GMC_hash32 (t->local_tid_dest, &hash);
if (GNUNET_YES !=
- GNUNET_CONTAINER_multihashmap_remove (c->incoming_tunnels, &hash, t))
+ GNUNET_CONTAINER_multihashmap32_remove (c->incoming_tunnels,
+ t->local_tid_dest, t))
{
GNUNET_break (0);
r = GNUNET_SYSERR;
}
if (GNUNET_YES !=
- GNUNET_CONTAINER_multihashmap_remove (incoming_tunnels, &hash, t))
+ GNUNET_CONTAINER_multihashmap32_remove (incoming_tunnels,
+ t->local_tid_dest, t))
{
GNUNET_break (0);
r = GNUNET_SYSERR;
if (NULL != client)
{
- GMC_hash32 (t->local_tid, &hash);
if (GNUNET_OK !=
- GNUNET_CONTAINER_multihashmap_put (client->own_tunnels, &hash, t,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
+ GNUNET_CONTAINER_multihashmap32_put (client->own_tunnels,
+ t->local_tid, t,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
{
tunnel_destroy (t);
GNUNET_break (0);
static void
tunnel_set_options (struct MeshTunnel *t, uint32_t options)
{
- t->nobuffer = options & GNUNET_MESH_OPTION_NOBUFFER;
- t->reliable = options & GNUNET_MESH_OPTION_RELIABLE;
+ t->nobuffer = (options & GNUNET_MESH_OPTION_NOBUFFER) != 0 ?
+ GNUNET_YES : GNUNET_NO;
+ t->reliable = (options & GNUNET_MESH_OPTION_RELIABLE) != 0 ?
+ GNUNET_YES : GNUNET_NO;
}
* Iterator for deleting each tunnel whose client endpoint disconnected.
*
* @param cls Closure (client that has disconnected).
- * @param key The hash of the local tunnel id (used to access the hashmap).
+ * @param key The local tunnel id (used to access the hashmap).
* @param value The value stored at the key (tunnel to destroy).
*
* @return GNUNET_OK, keep iterating.
*/
static int
tunnel_destroy_iterator (void *cls,
- const struct GNUNET_HashCode * key,
+ uint32_t key,
void *value)
{
struct MeshTunnel *t = value;
t->next_hop = 0;
}
}
- else if (c == t->owner)
+ if (c == t->owner)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " Client %u is owner.\n", c->id);
t->owner = NULL;
t->prev_hop = 0;
}
}
- else
- {
- GNUNET_break (0);
- }
+
tunnel_destroy_empty (t);
return GNUNET_OK;
else
{
GNUNET_break (0);
+ GNUNET_free (queue);
return;
}
fc->queue_n--;
return q;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "* ACK: %u, PID: %u\n",
- ack, pid);
+ "* ACK: %u, PID: %u, MID: %llu\n",
+ ack, pid, GNUNET_ntohll (dmsg->mid));
if (GNUNET_NO == GMC_is_pid_bigger (pid, ack))
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
{
case 0:
case GNUNET_MESSAGE_TYPE_MESH_ACK:
+ case GNUNET_MESSAGE_TYPE_MESH_UNICAST_ACK:
+ case GNUNET_MESSAGE_TYPE_MESH_TO_ORIG_ACK:
case GNUNET_MESSAGE_TYPE_MESH_POLL:
case GNUNET_MESSAGE_TYPE_MESH_PATH_BROKEN:
case GNUNET_MESSAGE_TYPE_MESH_PATH_DESTROY:
/* Send ACK if needed, after accounting for sent ID in fc->queue_n */
pid = ((struct GNUNET_MESH_Data *) buf)->pid;
+ pid = ntohl (pid);
switch (type)
{
case GNUNET_MESSAGE_TYPE_MESH_UNICAST:
else
{
GNUNET_break (0);
- fc = NULL;
+ return data_size;
}
if (NULL != fc && GNUNET_SCHEDULER_NO_TASK == fc->poll_task)
{
{
struct MeshPeerQueue *queue;
struct GNUNET_PeerIdentity id;
- unsigned int *n;
+ struct MeshFlowControl *fc;
+ int priority;
- n = NULL;
+ fc = NULL;
+ priority = GNUNET_NO;
if (GNUNET_MESSAGE_TYPE_MESH_UNICAST == type)
{
- n = &t->next_fc.queue_n;
+ fc = &t->next_fc;
}
else if (GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN == type)
{
- n = &t->prev_fc.queue_n;
+ fc = &t->prev_fc;
}
- if (NULL != n)
+ if (NULL != fc)
{
- if (*n >= t->queue_max)
+ if (fc->queue_n >= t->queue_max)
{
- GNUNET_break(0);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "queue full: %u/%u\n",
- *n, t->queue_max);
- GNUNET_STATISTICS_update(stats,
- "# messages dropped (buffer full)",
- 1, GNUNET_NO);
- return; /* Drop message */
+ /* If this isn't a retransmission, drop the message */
+ if (GNUNET_NO == t->reliable ||
+ (NULL == t->owner && GNUNET_MESSAGE_TYPE_MESH_UNICAST == type) ||
+ (NULL == t->client && GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN == type))
+ {
+ GNUNET_STATISTICS_update (stats, "# messages dropped (buffer full)",
+ 1, GNUNET_NO);
+ GNUNET_break (0);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "queue full: %u/%u\n",
+ fc->queue_n, t->queue_max);
+ return; /* Drop this message */
+ }
+ priority = GNUNET_YES;
}
- (*n)++;
+ fc->queue_n++;
}
queue = GNUNET_malloc (sizeof (struct MeshPeerQueue));
queue->cls = cls;
queue->size = size;
queue->peer = dst;
queue->tunnel = t;
- GNUNET_CONTAINER_DLL_insert_tail (dst->queue_head, dst->queue_tail, queue);
+ if (GNUNET_YES == priority)
+ {
+ struct GNUNET_MESH_Data *d;
+ uint32_t prev;
+ uint32_t next;
+
+ GNUNET_CONTAINER_DLL_insert (dst->queue_head, dst->queue_tail, queue);
+ d = (struct GNUNET_MESH_Data *) queue->cls;
+ prev = d->pid;
+ for (queue = dst->queue_tail; NULL != queue; queue = queue->prev)
+ {
+ if (queue->type != type)
+ continue;
+ d = (struct GNUNET_MESH_Data *) queue->cls;
+ next = d->pid;
+ d->pid = prev;
+ prev = next;
+ }
+ }
+ else
+ GNUNET_CONTAINER_DLL_insert_tail (dst->queue_head, dst->queue_tail, queue);
if (NULL == dst->core_transmit)
{
GNUNET_PEER_resolve (dst->id, &id);
if (own_pos == size - 1)
{
struct MeshClient *c;
- struct GNUNET_HashCode hc;
/* Find target client */
- GMC_hash32 (t->port, &hc);
- c = GNUNET_CONTAINER_multihashmap_get (ports, &hc);
+ c = GNUNET_CONTAINER_multihashmap32_get (ports, t->port);
if (NULL == c)
{
/* TODO send reject */
next_local_tid = next_local_tid | GNUNET_MESH_LOCAL_TUNNEL_ID_SERV;
if (GNUNET_YES == t->reliable)
- t->sent_messages_bck =
- GNUNET_CONTAINER_multihashmap32_create (t->queue_max);
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! Reliable\n");
+ t->bck_rel = GNUNET_malloc (sizeof (struct MeshTunnelReliability));
+ t->bck_rel->t = t;
+ t->bck_rel->expected_delay = MESH_RETRANSMIT_TIME;
+ }
tunnel_add_client (t, c);
send_client_tunnel_create (t);
return GNUNET_OK;
}
pid = ntohl (msg->pid);
- if (t->prev_fc.last_pid_recv == pid)
- {
- GNUNET_STATISTICS_update (stats, "# duplicate PID drops", 1, GNUNET_NO);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- " Already seen pid %u, DROPPING!\n", pid);
- return GNUNET_OK;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " pid %u not seen yet, forwarding\n", pid);
- }
-
- if (GMC_is_pid_bigger (pid, t->prev_fc.last_ack_sent))
+ if (GMC_is_pid_bigger (pid, t->prev_fc.last_ack_sent))
{
GNUNET_STATISTICS_update (stats, "# unsolicited unicast", 1, GNUNET_NO);
GNUNET_break_op (0);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received PID %u, ACK %u\n",
- pid, t->prev_fc.last_ack_sent);
+ "Received PID %u, (prev %u), ACK %u\n",
+ pid, t->prev_fc.last_pid_recv, t->prev_fc.last_ack_sent);
tunnel_send_fwd_ack(t, GNUNET_MESSAGE_TYPE_MESH_POLL);
return GNUNET_OK;
}
- t->prev_fc.last_pid_recv = pid;
tunnel_reset_timeout (t);
if (t->dest == myid)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
" it's for us! sending to clients...\n");
GNUNET_STATISTICS_update (stats, "# unicast received", 1, GNUNET_NO);
- tunnel_send_client_ucast (t, msg);
+// if (GMC_is_pid_bigger(pid, t->prev_fc.last_pid_recv)) FIXME use
+ if (GMC_is_pid_bigger (pid, t->prev_fc.last_pid_recv))
+ {
+ uint64_t mid;
+
+ mid = GNUNET_ntohll (msg->mid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " pid %u (%llu) not seen yet\n", pid, mid);
+ t->prev_fc.last_pid_recv = pid;
+
+ if (GNUNET_NO == t->reliable ||
+ (mid >= t->bck_rel->mid_recv && mid <= t->bck_rel->mid_recv + 64))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "!!! RECV %llu\n", GNUNET_ntohll(msg->mid));
+ if (GNUNET_YES == t->reliable)
+ {
+ /* Is this the exact next expected messasge? */
+ if (mid == t->bck_rel->mid_recv)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "as expected\n");
+ t->bck_rel->mid_recv++;
+ tunnel_send_client_ucast (t, msg);
+ tunnel_send_client_buffered_ucast (t);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "save for later\n");
+ tunnel_add_buffer_ucast (t, msg);
+ }
+ }
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " MID %llu not expected (%llu - %llu), dropping!\n",
+ GNUNET_ntohll (msg->mid),
+ t->bck_rel->mid_recv, t->bck_rel->mid_recv + 64LL);
+ }
+ }
+ else
+ {
+// GNUNET_STATISTICS_update (stats, "# duplicate PID", 1, GNUNET_NO);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " Pid %u not expected (%u), dropping!\n",
+ pid, t->prev_fc.last_pid_recv + 1);
+ }
tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_UNICAST);
return GNUNET_OK;
}
+ t->prev_fc.last_pid_recv = pid;
if (0 == t->next_hop)
{
GNUNET_break (0);
GNUNET_MESH_DEBUG_M2S (ntohs (msg[1].header.type)));
t = tunnel_get (&msg->oid, ntohl (msg->tid));
pid = ntohl (msg->pid);
-
if (NULL == t)
{
/* TODO notify that we dont know this tunnel (whom)? */
return GNUNET_OK;
}
- if (t->next_fc.last_pid_recv == pid)
- {
- /* already seen this packet, drop */
- GNUNET_STATISTICS_update (stats, "# duplicate PID drops BCK", 1, GNUNET_NO);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " Already seen pid %u, DROPPING!\n", pid);
- tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_ACK);
- return GNUNET_OK;
- }
-
if (GMC_is_pid_bigger (pid, t->next_fc.last_ack_sent))
{
GNUNET_STATISTICS_update (stats, "# unsolicited to_orig", 1, GNUNET_NO);
tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_POLL);
return GNUNET_OK;
}
- t->next_fc.last_pid_recv = pid;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " pid %u not seen yet, forwarding\n", pid);
if (myid == t->id.oid)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
" it's for us! sending to clients...\n");
GNUNET_STATISTICS_update (stats, "# to origin received", 1, GNUNET_NO);
- tunnel_send_client_to_orig (t, msg);
+ if ( (GNUNET_NO == t->reliable &&
+ GMC_is_pid_bigger(pid, t->next_fc.last_pid_recv))
+ ||
+ (GNUNET_YES == t->reliable &&
+ pid == t->next_fc.last_pid_recv + 1) ) // FIXME use "futures" as accepting
+ {
+ t->next_fc.last_pid_recv = pid;
+ tunnel_send_client_to_orig (t, msg);
+ }
+ else
+ {
+// GNUNET_STATISTICS_update (stats, "# duplicate PID drops BCK", 1, GNUNET_NO);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ " Pid %u not expected, sending FWD ACK!\n", pid);
+ }
tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN);
return GNUNET_OK;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
" not for us, retransmitting...\n");
-
+ t->next_fc.last_pid_recv = pid;
if (0 == t->prev_hop) /* No owner AND no prev hop */
{
if (GNUNET_YES == t->destroy)
const struct GNUNET_MessageHeader *message)
{
struct GNUNET_MESH_DataACK *msg;
- struct GNUNET_CONTAINER_MultiHashMap32 *hm;
- struct MeshSentMessage *copy;
+ struct MeshTunnelReliability *rel;
+ struct MeshReliableMessage *copy;
+ struct MeshReliableMessage *next;
struct MeshTunnel *t;
GNUNET_PEER_Id id;
- uint32_t ack;
+ uint64_t ack;
+ uint16_t type;
+ int work;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a DATA ACK message from %s!\n",
- GNUNET_i2s (peer));
+ type = ntohs (message->type);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a %s message from %s!\n",
+ GNUNET_MESH_DEBUG_M2S (type), GNUNET_i2s (peer));
msg = (struct GNUNET_MESH_DataACK *) message;
t = tunnel_get (&msg->oid, ntohl (msg->tid));
GNUNET_STATISTICS_update (stats, "# ack on unknown tunnel", 1, GNUNET_NO);
return GNUNET_OK;
}
- ack = ntohl (msg->pid);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " ACK %u\n", ack);
+ ack = GNUNET_ntohll (msg->mid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " ACK %llu\n", ack);
/* Is this a forward or backward ACK? */
id = GNUNET_PEER_search (peer);
- if (t->next_hop == id)
+ if (t->next_hop == id && GNUNET_MESSAGE_TYPE_MESH_UNICAST_ACK == type)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " FWD ACK\n");
if (NULL == t->owner)
send_prebuilt_message (message, t->prev_hop, t);
return GNUNET_OK;
}
- hm = t->sent_messages_fwd;
- tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_DATA_ACK);
+ rel = t->fwd_rel;
+ tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_UNICAST);
}
- else if (t->prev_hop == id)
+ else if (t->prev_hop == id && GNUNET_MESSAGE_TYPE_MESH_TO_ORIG_ACK == type)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " BCK ACK\n");
if (NULL == t->client)
send_prebuilt_message (message, t->next_hop, t);
return GNUNET_OK;
}
- hm = t->sent_messages_bck;
- tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_DATA_ACK);
+ rel = t->bck_rel;
+ tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN);
}
else
- GNUNET_break_op (0);
-
- copy = GNUNET_CONTAINER_multihashmap32_get (hm, ack);
- if (NULL == copy)
{
- GNUNET_break (0); // FIXME needed?
+ GNUNET_break_op (0);
return GNUNET_OK;
}
- GNUNET_break (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap32_remove (hm, ack, copy));
- if (GNUNET_SCHEDULER_NO_TASK != copy->retry_task)
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! ACK %llu\n", ack);
+ for (work = GNUNET_NO, copy = rel->head_sent; copy != NULL; copy = next)
{
- GNUNET_SCHEDULER_cancel (copy->retry_task);
+ struct GNUNET_TIME_Relative time;
+
+ if (copy->mid > ack)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! head %llu, out!\n", copy->mid);
+ tunnel_free_buffer_ucast (t, msg);
+ break;
+ }
+ work = GNUNET_YES;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! id %llu\n", copy->mid);
+ next = copy->next;
+ time = GNUNET_TIME_absolute_get_duration (copy->timestamp);
+ rel->expected_delay.rel_value += time.rel_value;
+ rel->expected_delay.rel_value /= 2;
+ rel->n_sent--;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! new expected delay %s\n",
+ GNUNET_STRINGS_relative_time_to_string (rel->expected_delay,
+ GNUNET_NO));
+ rel->retry_timer = rel->expected_delay;
+ GNUNET_CONTAINER_DLL_remove (rel->head_sent, rel->tail_sent, copy);
+ GNUNET_free (copy);
+ }
+
+ 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,
+ &tunnel_retransmit_message,
+ rel);
+ }
+ }
+ else
+ GNUNET_break (0);
}
- else
- GNUNET_break (0);
- GNUNET_free (copy);
return GNUNET_OK;
}
{
struct GNUNET_MESH_ACK *msg;
struct MeshTunnel *t;
+ struct MeshFlowControl *fc;
GNUNET_PEER_Id id;
uint32_t ack;
{
debug_fwd_ack++;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " FWD ACK\n");
- if (GNUNET_SCHEDULER_NO_TASK != t->next_fc.poll_task &&
- GMC_is_pid_bigger (ack, t->next_fc.last_ack_recv))
- {
- GNUNET_SCHEDULER_cancel (t->next_fc.poll_task);
- t->next_fc.poll_task = GNUNET_SCHEDULER_NO_TASK;
- t->next_fc.poll_time = GNUNET_TIME_UNIT_SECONDS;
- }
- t->next_fc.last_ack_recv = ack;
- peer_unlock_queue (t->next_hop);
- tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_ACK);
+ fc = &t->next_fc;
}
else if (t->prev_hop == id)
{
debug_bck_ack++;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " BCK ACK\n");
- if (GNUNET_SCHEDULER_NO_TASK != t->prev_fc.poll_task &&
- GMC_is_pid_bigger (ack, t->prev_fc.last_ack_recv))
- {
- GNUNET_SCHEDULER_cancel (t->prev_fc.poll_task);
- t->prev_fc.poll_task = GNUNET_SCHEDULER_NO_TASK;
- t->prev_fc.poll_time = GNUNET_TIME_UNIT_SECONDS;
- }
- t->prev_fc.last_ack_recv = ack;
- peer_unlock_queue (t->prev_hop);
- tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_ACK);
+ fc = &t->prev_fc;
}
else
+ {
GNUNET_break_op (0);
+ return GNUNET_OK;
+ }
+
+ if (GNUNET_SCHEDULER_NO_TASK != fc->poll_task &&
+ GMC_is_pid_bigger (ack, fc->last_ack_recv))
+ {
+ GNUNET_SCHEDULER_cancel (fc->poll_task);
+ fc->poll_task = GNUNET_SCHEDULER_NO_TASK;
+ fc->poll_time = GNUNET_TIME_UNIT_SECONDS;
+ }
+ fc->last_ack_recv = ack;
+ peer_unlock_queue (id);
+
+ if (t->next_hop == id)
+ tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_ACK);
+ else
+ tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_ACK);
+
return GNUNET_OK;
}
{
struct GNUNET_MESH_Poll *msg;
struct MeshTunnel *t;
+ struct MeshFlowControl *fc;
GNUNET_PEER_Id id;
+ uint32_t pid;
+ uint32_t old;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got an POLL packet from %s!\n",
GNUNET_i2s (peer));
/* Is this a forward or backward ACK? */
id = GNUNET_PEER_search(peer);
+ pid = ntohl (msg->pid);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " PID %u\n", pid);
if (t->next_hop == id)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " from FWD\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " was %u\n", t->next_fc.last_pid_recv);
+ fc = &t->next_fc;
+ old = fc->last_pid_recv;
+ fc->last_pid_recv = pid;
tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_POLL);
}
else if (t->prev_hop == id)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " from BCK\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " was %u\n", t->prev_fc.last_pid_recv);
+ fc = &t->prev_fc;
+ old = fc->last_pid_recv;
+ fc->last_pid_recv = pid;
tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_POLL);
}
else
GNUNET_break (0);
+
+ if (GNUNET_YES == t->reliable)
+ fc->last_pid_recv = old;
return GNUNET_OK;
}
}
tunnel_reset_timeout (t);
- if (NULL != t->client || 0 == t->next_hop)
+ if (NULL != t->client || 0 == t->next_hop || myid == t->next_hop)
return GNUNET_OK;
GNUNET_STATISTICS_update (stats, "# keepalives forwarded", 1, GNUNET_NO);
sizeof (struct GNUNET_MESH_TunnelDestroy)},
{&handle_mesh_unicast, GNUNET_MESSAGE_TYPE_MESH_UNICAST, 0},
{&handle_mesh_to_orig, GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN, 0},
- {&handle_mesh_data_ack, GNUNET_MESSAGE_TYPE_MESH_DATA_ACK,
+ {&handle_mesh_data_ack, GNUNET_MESSAGE_TYPE_MESH_UNICAST_ACK,
+ sizeof (struct GNUNET_MESH_DataACK)},
+ {&handle_mesh_data_ack, GNUNET_MESSAGE_TYPE_MESH_TO_ORIG_ACK,
sizeof (struct GNUNET_MESH_DataACK)},
{&handle_mesh_keepalive, GNUNET_MESSAGE_TYPE_MESH_PATH_KEEPALIVE,
sizeof (struct GNUNET_MESH_TunnelKeepAlive)},
/******************************************************************************/
+/**
+ * Handler for client connection.
+ *
+ * @param cls Closure (unused).
+ * @param client Client handler.
+ */
+static void
+handle_local_client_connect (void *cls, struct GNUNET_SERVER_Client *client)
+{
+ struct MeshClient *c;
+
+ if (NULL == client)
+ return;
+ c = GNUNET_malloc (sizeof (struct MeshClient));
+ c->handle = client;
+ GNUNET_SERVER_client_keep (client);
+ GNUNET_SERVER_client_set_user_context (client, c);
+ GNUNET_CONTAINER_DLL_insert (clients_head, clients_tail, c);
+}
+
+
/**
* Handler for client disconnection
*
return;
}
- c = clients_head;
- while (NULL != c)
+ c = client_get (client);
+ if (NULL != c)
{
- if (c->handle != client)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " ... searching %p (%u)\n",
- c->handle, c->id);
- c = c->next;
- continue;
- }
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "matching client found (%u)\n",
c->id);
GNUNET_SERVER_client_drop (c->handle);
c->shutting_down = GNUNET_YES;
- GNUNET_CONTAINER_multihashmap_iterate (c->own_tunnels,
- &tunnel_destroy_iterator, c);
- GNUNET_CONTAINER_multihashmap_iterate (c->incoming_tunnels,
- &tunnel_destroy_iterator, c);
- GNUNET_CONTAINER_multihashmap_destroy (c->own_tunnels);
- GNUNET_CONTAINER_multihashmap_destroy (c->incoming_tunnels);
+ if (NULL != c->own_tunnels)
+ {
+ GNUNET_CONTAINER_multihashmap32_iterate (c->own_tunnels,
+ &tunnel_destroy_iterator, c);
+ GNUNET_CONTAINER_multihashmap32_destroy (c->own_tunnels);
+ }
+
+ if (NULL != c->incoming_tunnels)
+ {
+ GNUNET_CONTAINER_multihashmap32_iterate (c->incoming_tunnels,
+ &tunnel_destroy_iterator, c);
+ GNUNET_CONTAINER_multihashmap32_destroy (c->incoming_tunnels);
+ }
if (NULL != c->ports)
- GNUNET_CONTAINER_multihashmap_destroy (c->ports);
+ GNUNET_CONTAINER_multihashmap32_destroy (c->ports);
next = c->next;
GNUNET_CONTAINER_DLL_remove (clients_head, clients_tail, c);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " CLIENT FREE at %p\n", c);
GNUNET_STATISTICS_update (stats, "# clients", -1, GNUNET_NO);
c = next;
}
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING, " context NULL!\n");
+ }
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "done!\n");
return;
}
}
size /= sizeof (uint32_t);
- /* Create new client structure */
- c = GNUNET_malloc (sizeof (struct MeshClient));
+ /* Initialize new client structure */
+ c = GNUNET_SERVER_client_get_user_context (client, struct MeshClient);
c->id = next_client_id++; /* overflow not important: just for debug */
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " client id %u\n", c->id);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " client has %u ports\n", size);
- c->handle = client;
- GNUNET_SERVER_client_keep (client);
if (size > 0)
{
uint32_t u32;
- struct GNUNET_HashCode hc;
p = (uint32_t *) &cc_msg[1];
- c->ports = GNUNET_CONTAINER_multihashmap_create (size, GNUNET_NO);
+ c->ports = GNUNET_CONTAINER_multihashmap32_create (size);
for (i = 0; i < size; i++)
{
u32 = ntohl (p[i]);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " port: %u\n", u32);
- GMC_hash32 (u32, &hc);
/* store in client's hashmap */
- GNUNET_CONTAINER_multihashmap_put (c->ports, &hc, c,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
+ GNUNET_CONTAINER_multihashmap32_put (c->ports, u32, c,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
/* store in global hashmap */
/* FIXME only allow one client to have the port open,
* have a backup hashmap with waiting clients */
- GNUNET_CONTAINER_multihashmap_put (ports, &hc, c,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+ GNUNET_CONTAINER_multihashmap32_put (ports, u32, c,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
}
}
- GNUNET_CONTAINER_DLL_insert (clients_head, clients_tail, c);
- c->own_tunnels = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_NO);
- c->incoming_tunnels = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_NO);
+ c->own_tunnels = GNUNET_CONTAINER_multihashmap32_create (32);
+ c->incoming_tunnels = GNUNET_CONTAINER_multihashmap32_create (32);
GNUNET_SERVER_notification_context_add (nc, client);
GNUNET_STATISTICS_update (stats, "# clients", 1, GNUNET_NO);
return;
}
t->port = ntohl (t_msg->port);
- tunnel_set_options (t, ntohl (t_msg->options));
+ tunnel_set_options (t, ntohl (t_msg->opt));
if (GNUNET_YES == t->reliable)
- t->sent_messages_fwd =
- GNUNET_CONTAINER_multihashmap32_create (t->queue_max);
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! Reliable\n");
+ t->fwd_rel = GNUNET_malloc (sizeof (struct MeshTunnelReliability));
+ t->fwd_rel->t = t;
+ t->fwd_rel->expected_delay = MESH_RETRANSMIT_TIME;
+ }
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "CREATED TUNNEL %s[%x]:%u (%x)\n",
GNUNET_i2s (&my_full_id), t->id.tid, t->port, t->local_tid);
{
t->client = NULL;
}
- else if (c == t->owner)
+ if (c == t->owner)
{
peer_info_remove_tunnel (peer_get_short (t->dest), t);
t->owner = NULL;
/**
- * Handler for client traffic directed to one peer
+ * Handler for client traffic
*
* @param cls closure
* @param client identification of the client
* @param message the actual message
*/
static void
-handle_local_unicast (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
+handle_local_data (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
{
+ struct GNUNET_MESH_LocalData *data_msg;
struct MeshClient *c;
struct MeshTunnel *t;
- struct GNUNET_MESH_Data *data_msg;
- MESH_TunnelNumber tid;
- size_t size;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Got a unicast request from a client!\n");
-
- /* Sanity check for client registration */
- if (NULL == (c = client_get (client)))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
-
- data_msg = (struct GNUNET_MESH_Data *) message;
-
- /* Sanity check for message size */
- size = ntohs (message->size);
- if (sizeof (struct GNUNET_MESH_Data) +
- sizeof (struct GNUNET_MessageHeader) > size)
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
-
- /* Tunnel exists? */
- tid = ntohl (data_msg->tid);
- t = tunnel_get_by_local_id (c, tid);
- if (NULL == t)
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
-
- /* Is it a local tunnel? Then, does client own the tunnel? */
- if (t->owner->handle != client)
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
-
- /* PID should be as expected: client<->service communication */
- if (ntohl (data_msg->pid) != t->prev_fc.last_pid_recv + 1)
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Unicast PID, expected %u, got %u\n",
- t->prev_fc.last_pid_recv + 1, ntohl (data_msg->pid));
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
-
- /* Ok, everything is correct, send the message
- * (pretend we got it from a mesh peer)
- */
- {
- struct MeshSentMessage *copy;
- struct GNUNET_MESH_Data *payload;
-
- copy = GNUNET_malloc (sizeof (struct MeshSentMessage) + size);
- copy->id = ntohl (data_msg->pid);
- copy->is_forward = GNUNET_YES;
- copy->retry_timer = GNUNET_TIME_UNIT_MINUTES;
- copy->retry_task = GNUNET_SCHEDULER_add_delayed (copy->retry_timer,
- &tunnel_retransmit_message,
- copy);
- if (GNUNET_YES == t->reliable &&
- GNUNET_OK !=
- GNUNET_CONTAINER_multihashmap32_put (t->sent_messages_fwd,
- copy->id,
- copy,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- payload = (struct GNUNET_MESH_Data *) ©[1];
- memcpy (payload, data_msg, size);
- payload->oid = my_full_id;
- payload->tid = htonl (t->id.tid);
- payload->ttl = htonl (default_ttl);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " calling generic handler...\n");
- handle_mesh_unicast (NULL, &my_full_id, &payload->header);
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "receive done OK\n");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-
- return;
-}
-
-
-/**
- * Handler for client traffic directed to the origin
- *
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_local_to_origin (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- struct GNUNET_MESH_Data *data_msg;
struct MeshFlowControl *fc;
- struct MeshClient *c;
- struct MeshTunnel *t;
MESH_TunnelNumber tid;
size_t size;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Got a ToOrigin request from a client!\n");
+ "Got data from a client!\n");
+
/* Sanity check for client registration */
if (NULL == (c = client_get (client)))
{
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
- data_msg = (struct GNUNET_MESH_Data *) message;
+ data_msg = (struct GNUNET_MESH_LocalData *) message;
/* Sanity check for message size */
- size = ntohs (message->size);
- if (sizeof (struct GNUNET_MESH_Data) +
- sizeof (struct GNUNET_MessageHeader) > size)
+ size = ntohs (message->size) - sizeof (struct GNUNET_MESH_LocalData);
+ if (size < sizeof (struct GNUNET_MessageHeader))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
/* Tunnel exists? */
tid = ntohl (data_msg->tid);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " on tunnel %X\n", tid);
- if (tid < GNUNET_MESH_LOCAL_TUNNEL_ID_SERV)
+ if (tid < GNUNET_MESH_LOCAL_TUNNEL_ID_CLI)
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
t = tunnel_get_by_local_id (c, tid);
if (NULL == t)
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Tunnel %X unknown.\n", tid);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, " for client %u.\n", c->id);
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- /* It should be sent by someone who has this as incoming tunnel. */
- if (t->client != c)
+ /* Is the client in the tunnel? */
+ if ( !( (tid < GNUNET_MESH_LOCAL_TUNNEL_ID_SERV &&
+ t->owner &&
+ t->owner->handle == client)
+ ||
+ (tid >= GNUNET_MESH_LOCAL_TUNNEL_ID_SERV &&
+ t->client &&
+ t->client->handle == client) ) )
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- /* PID should be as expected */
- fc = &t->next_fc;
- if (ntohl (data_msg->pid) != fc->last_pid_recv + 1)
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "To Origin PID, expected %u, got %u\n",
- fc->last_pid_recv + 1,
- ntohl (data_msg->pid));
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
-
/* Ok, everything is correct, send the message
* (pretend we got it from a mesh peer)
*/
{
- struct MeshSentMessage *copy;
struct GNUNET_MESH_Data *payload;
+ char cbuf[sizeof(struct GNUNET_MESH_Data) + size];
- copy = GNUNET_malloc (sizeof (struct MeshSentMessage) + size);
- copy->id = ntohl (data_msg->pid);
- copy->is_forward = GNUNET_NO;
- copy->retry_timer = GNUNET_TIME_UNIT_MINUTES;
- copy->retry_task = GNUNET_SCHEDULER_add_delayed (copy->retry_timer,
- &tunnel_retransmit_message,
- copy);
- if (GNUNET_YES == t->reliable &&
- GNUNET_OK !=
- GNUNET_CONTAINER_multihashmap32_put (t->sent_messages_bck,
- copy->id,
- copy,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))
+ fc = tid < GNUNET_MESH_LOCAL_TUNNEL_ID_SERV ? &t->prev_fc : &t->next_fc;
+ if (GNUNET_YES == t->reliable)
{
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
+ struct MeshTunnelReliability *rel;
+ struct MeshReliableMessage *copy;
+
+ rel = (tid < GNUNET_MESH_LOCAL_TUNNEL_ID_SERV) ? t->fwd_rel : t->bck_rel;
+ copy = GNUNET_malloc (sizeof (struct MeshReliableMessage)
+ + sizeof(struct GNUNET_MESH_Data)
+ + size);
+ copy->mid = rel->mid_sent++;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "!!! DATA %llu\n", copy->mid);
+ copy->timestamp = GNUNET_TIME_absolute_get ();
+ copy->rel = rel;
+ rel->n_sent++;
+ GNUNET_CONTAINER_DLL_insert_tail (rel->head_sent, rel->tail_sent, copy);
+ if (GNUNET_SCHEDULER_NO_TASK == rel->retry_task)
+ {
+ rel->retry_timer =
+ GNUNET_TIME_relative_multiply (rel->expected_delay,
+ MESH_RETRANSMIT_MARGIN);
+ rel->retry_task =
+ GNUNET_SCHEDULER_add_delayed (rel->retry_timer,
+ &tunnel_retransmit_message,
+ rel);
+ }
+ payload = (struct GNUNET_MESH_Data *) ©[1];
+ payload->mid = GNUNET_htonll (copy->mid);
+ }
+ else
+ {
+ payload = (struct GNUNET_MESH_Data *) cbuf;
+ payload->mid = 0;
+ // FIXME FIXME FIXME FIXME FIXME FIXME FIXME FIXME FIXME FIXME
+ // use different struct for unreliable traffic, save 8 bytes
}
- payload = (struct GNUNET_MESH_Data *) ©[1];
- memcpy (payload, data_msg, size);
- GNUNET_PEER_resolve (t->id.oid, &payload->oid);
+ memcpy (&payload[1], &data_msg[1], size);
+ payload->header.size = htons (sizeof (struct GNUNET_MESH_Data) + size);
+ payload->header.type = htons (tid < GNUNET_MESH_LOCAL_TUNNEL_ID_SERV ?
+ GNUNET_MESSAGE_TYPE_MESH_UNICAST :
+ GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN);
+ GNUNET_PEER_resolve(t->id.oid, &payload->oid);;
payload->tid = htonl (t->id.tid);
payload->ttl = htonl (default_ttl);
-
+ payload->pid = htonl (fc->last_pid_recv + 1);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
" calling generic handler...\n");
- handle_mesh_to_orig (NULL, &my_full_id, &payload->header);
+ if (tid < GNUNET_MESH_LOCAL_TUNNEL_ID_SERV)
+ handle_mesh_unicast (NULL, &my_full_id, &payload->header);
+ else
+ handle_mesh_to_orig (NULL, &my_full_id, &payload->header);
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "receive done OK\n");
GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
struct MeshTunnel *t;
struct MeshClient *c;
MESH_TunnelNumber tid;
- uint32_t ack;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a local ACK\n");
/* Sanity check for client registration */
return;
}
- ack = ntohl (msg->ack);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " ack %u\n", ack);
-
/* Does client own tunnel? I.E: Is this an ACK for BCK traffic? */
if (t->owner == c)
{
/* The client owns the tunnel, ACK is for data to_origin, send BCK ACK. */
- t->prev_fc.last_ack_recv = ack;
+ t->prev_fc.last_ack_recv++;
tunnel_send_bck_ack (t, GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK);
}
else
{
/* The client doesn't own the tunnel, this ACK is for FWD traffic. */
- t->next_fc.last_ack_recv = ack;
+ t->next_fc.last_ack_recv++;
tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK);
}
{&handle_local_tunnel_destroy, NULL,
GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_DESTROY,
sizeof (struct GNUNET_MESH_TunnelMessage)},
- {&handle_local_unicast, NULL,
- GNUNET_MESSAGE_TYPE_MESH_UNICAST, 0},
- {&handle_local_to_origin, NULL,
- GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN, 0},
+ {&handle_local_data, NULL,
+ GNUNET_MESSAGE_TYPE_MESH_LOCAL_DATA, 0},
{&handle_local_ack, NULL,
GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK,
sizeof (struct GNUNET_MESH_LocalAck)},
server_init (void)
{
GNUNET_SERVER_add_handlers (server_handle, client_handlers);
+ GNUNET_SERVER_connect_notify (server_handle,
+ &handle_local_client_connect, NULL);
GNUNET_SERVER_disconnect_notify (server_handle,
&handle_local_client_disconnect, NULL);
nc = GNUNET_SERVER_notification_context_create (server_handle, 1);
GNUNET_CORE_disconnect (core_handle);
core_handle = NULL;
}
- if (NULL != keygen)
- {
- GNUNET_CRYPTO_ecc_key_create_stop (keygen);
- keygen = NULL;
- }
GNUNET_CONTAINER_multihashmap_iterate (tunnels, &shutdown_tunnel, NULL);
GNUNET_CONTAINER_multihashmap_iterate (peers, &shutdown_peer, NULL);
if (dht_handle != NULL)
}
-/**
- * Callback for hostkey read/generation.
- *
- * @param cls Closure (Configuration handle).
- * @param pk The ECC private key.
- * @param emsg Error message, if any.
- */
-static void
-key_generation_cb (void *cls,
- struct GNUNET_CRYPTO_EccPrivateKey *pk,
- const char *emsg)
-{
- const struct GNUNET_CONFIGURATION_Handle *c = cls;
-
- keygen = NULL;
- if (NULL == pk)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Could not access hostkey: %s. Exiting.\n"),
- emsg);
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- my_private_key = pk;
- GNUNET_CRYPTO_ecc_key_get_public (my_private_key, &my_public_key);
- GNUNET_CRYPTO_hash (&my_public_key, sizeof (my_public_key),
- &my_full_id.hashPubKey);
- myid = GNUNET_PEER_intern (&my_full_id);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Mesh for peer [%s] starting\n",
- GNUNET_i2s(&my_full_id));
-
- core_handle = GNUNET_CORE_connect (c, /* Main configuration */
- NULL, /* Closure passed to MESH functions */
- &core_init, /* Call core_init once connected */
- &core_connect, /* Handle connects */
- &core_disconnect, /* remove peers on disconnects */
- NULL, /* Don't notify about all incoming messages */
- GNUNET_NO, /* For header only in notification */
- NULL, /* Don't notify about all outbound messages */
- GNUNET_NO, /* For header-only out notification */
- core_handlers); /* Register these handlers */
- if (core_handle == NULL)
- {
- GNUNET_break (0);
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
-
- next_tid = 0;
- next_local_tid = GNUNET_MESH_LOCAL_TUNNEL_ID_SERV;
-
- announce_id_task = GNUNET_SCHEDULER_add_now (&announce_id, cls);
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh service running\n");
-}
-
-
/**
* Process mesh requests.
*
const struct GNUNET_CONFIGURATION_Handle *c)
{
char *keyfile;
+ struct GNUNET_CRYPTO_EccPrivateKey *pk;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "starting to run\n");
server_handle = server;
}
if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (c, "MESH", "DROP_PERCENT",
- &drop_percent))
+ GNUNET_CONFIGURATION_get_value_number (c, "MESH", "DROP_PERCENT",
+ &drop_percent))
{
drop_percent = 0;
}
}
tunnels = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_NO);
- incoming_tunnels = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_NO);
+ incoming_tunnels = GNUNET_CONTAINER_multihashmap32_create (32);
peers = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_NO);
- ports = GNUNET_CONTAINER_multihashmap_create (32, GNUNET_NO);
+ ports = GNUNET_CONTAINER_multihashmap32_create (32);
dht_handle = GNUNET_DHT_connect (c, 64);
if (NULL == dht_handle)
/* Scheduled the task to clean up when shutdown is called */
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
NULL);
- keygen = GNUNET_CRYPTO_ecc_key_create_start (keyfile,
- &key_generation_cb,
- (void *) c);
+ pk = GNUNET_CRYPTO_ecc_key_create_from_file (keyfile);
GNUNET_free (keyfile);
+ GNUNET_assert (NULL != pk);
+ my_private_key = pk;
+ GNUNET_CRYPTO_ecc_key_get_public (my_private_key, &my_public_key);
+ GNUNET_CRYPTO_hash (&my_public_key, sizeof (my_public_key),
+ &my_full_id.hashPubKey);
+ myid = GNUNET_PEER_intern (&my_full_id);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Mesh for peer [%s] starting\n",
+ GNUNET_i2s(&my_full_id));
+
+ core_handle = GNUNET_CORE_connect (c, /* Main configuration */
+ NULL, /* Closure passed to MESH functions */
+ &core_init, /* Call core_init once connected */
+ &core_connect, /* Handle connects */
+ &core_disconnect, /* remove peers on disconnects */
+ NULL, /* Don't notify about all incoming messages */
+ GNUNET_NO, /* For header only in notification */
+ NULL, /* Don't notify about all outbound messages */
+ GNUNET_NO, /* For header-only out notification */
+ core_handlers); /* Register these handlers */
+ if (NULL == core_handle)
+ {
+ GNUNET_break (0);
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ next_tid = 0;
+ next_local_tid = GNUNET_MESH_LOCAL_TUNNEL_ID_SERV;
+ announce_id_task = GNUNET_SCHEDULER_add_now (&announce_id, cls);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh service running\n");
}
projects / oweals / gnunet.git / blobdiff