#define KEEPALIVE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
-#define ATS_RESPONSE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3)
+#define ATS_RESPONSE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
+
+#define FAST_RECONNECT_RATE GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 100)
#define FAST_RECONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
#define SETUP_CONNECTION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
+#define TEST_NEW_CODE GNUNET_NO
/**
* Entry in neighbours.
*/
struct NeighbourMapEntry;
+GNUNET_NETWORK_STRUCT_BEGIN
+
/**
* Message a peer sends to another to indicate its
* preference for communicating via a particular
struct GNUNET_CRYPTO_RsaSignature signature;
};
-
+GNUNET_NETWORK_STRUCT_END
/**
* For each neighbour we keep a list of messages
enum State
{
/**
- * fresh peer or completely disconnected
+ * fresh peer or completely disconnected
*/
S_NOT_CONNECTED,
/**
- * sent CONNECT message to other peer, waiting for CONNECT_ACK
+ * sent CONNECT message to other peer, waiting for CONNECT_ACK
*/
S_CONNECT_SENT,
/**
- * received CONNECT message to other peer, sending CONNECT_ACK
+ * received CONNECT message to other peer, sending CONNECT_ACK
*/
S_CONNECT_RECV,
/**
- * received ACK or payload
+ * received ACK or payload
*/
S_CONNECTED,
S_FAST_RECONNECT,
/**
- * Disconnect in progress
+ * Disconnect in progress
*/
S_DISCONNECT
};
+enum Address_State
+{
+ USED,
+ UNUSED,
+ FRESH,
+};
+
/**
* Entry in neighbours.
*/
struct MessageQueue *messages_tail;
- /**
- * Performance data for the peer.
- */
- //struct GNUNET_ATS_Information *ats;
-
/**
* Are we currently trying to send a message? If so, which one?
*/
*/
struct GNUNET_HELLO_Address *address;
+ /**
+ * Address we currently use.
+ */
+ struct GNUNET_HELLO_Address *fast_reconnect_address;
+
+
/**
* Identity of this neighbour.
*/
*/
GNUNET_SCHEDULER_TaskIdentifier ats_suggest;
+ /**
+ * Delay for ATS request
+ */
+ GNUNET_SCHEDULER_TaskIdentifier ats_request;
+
/**
* Task the resets the peer state after due to an pending
* unsuccessful connection setup
*/
GNUNET_SCHEDULER_TaskIdentifier state_reset;
+
/**
* How often has the other peer (recently) violated the inbound
* traffic limit? Incremented by 10 per violation, decremented by 1
* Did we sent an KEEP_ALIVE message and are we expecting a response?
*/
int expect_latency_response;
+
+ /**
+ * Was the address used successfully
+ */
+ int address_state;
+
+ /**
+ * Fast reconnect attempts for identical address
+ */
+ unsigned int fast_reconnect_attempts;
};
static struct GNUNET_CONTAINER_MultiHashMap *neighbours;
/**
- * Closure for connect_notify_cb and disconnect_notify_cb
+ * Closure for connect_notify_cb, disconnect_notify_cb and address_change_cb
*/
static void *callback_cls;
*/
static GNUNET_TRANSPORT_NotifyDisconnect disconnect_notify_cb;
+/**
+ * Function to call when we changed an active address of a neighbour.
+ */
+static GNUNET_TRANSPORT_PeerIterateCallback address_change_cb;
+
/**
* counter for connected neighbours
*/
return GNUNET_CONTAINER_multihashmap_get (neighbours, &pid->hashPubKey);
}
+/**
+ * Disconnect from the given neighbour, clean up the record.
+ *
+ * @param n neighbour to disconnect from
+ */
+static void
+disconnect_neighbour (struct NeighbourMapEntry *n);
+
#define change_state(n, state, ...) change (n, state, __LINE__)
static int
static void
ats_suggest_cancel (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
static void
reset_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct NeighbourMapEntry *n = cls;
+ if (n == NULL)
+ return;
+
n->state_reset = GNUNET_SCHEDULER_NO_TASK;
+ if (n->state == S_CONNECTED)
+ return;
#if DEBUG_TRANSPORT
-#endif
-
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
("# failed connection attempts due to timeout"), 1,
GNUNET_NO);
+#endif
/* resetting state */
+
+ if (n->state == S_FAST_RECONNECT)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Fast reconnect time out, disconnecting peer `%s'\n",
+ GNUNET_i2s (&n->id));
+ disconnect_neighbour(n);
+ return;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "State for neighbour `%s' %X changed from `%s' to `%s' in line %u\n",
+ GNUNET_i2s (&n->id), n, print_state(n->state), "S_NOT_CONNECTED", __LINE__);
+
n->state = S_NOT_CONNECTED;
/* destroying address */
- GNUNET_ATS_address_destroyed (GST_ats, n->address, n->session);
+ if (n->address != NULL)
+ {
+ GNUNET_assert (strlen (n->address->transport_name) > 0);
+ GNUNET_ATS_address_destroyed (GST_ats, n->address, n->session);
+ }
/* request new address */
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
static int
change (struct NeighbourMapEntry *n, int state, int line)
{
+ int previous_state;
/* allowed transitions */
int allowed = GNUNET_NO;
+ previous_state = n->state;
+
switch (n->state)
{
case S_NOT_CONNECTED:
{
char *old = GNUNET_strdup (print_state (n->state));
char *new = GNUNET_strdup (print_state (state));
+
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Illegal state transition from `%s' to `%s' in line %u \n", old,
new, line);
GNUNET_free (new);
return GNUNET_SYSERR;
}
-#if DEBUG_TRANSPORT
{
char *old = GNUNET_strdup (print_state (n->state));
char *new = GNUNET_strdup (print_state (state));
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"State for neighbour `%s' %X changed from `%s' to `%s' in line %u\n",
GNUNET_i2s (&n->id), n, old, new, line);
GNUNET_free (old);
GNUNET_free (new);
}
-#endif
n->state = state;
switch (n->state)
if (n->state_reset != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (n->state_reset);
n->state_reset =
- GNUNET_SCHEDULER_add_delayed (SETUP_CONNECTION_TIMEOUT, &reset_task,
- n);
+ GNUNET_SCHEDULER_add_delayed (SETUP_CONNECTION_TIMEOUT, &reset_task, n);
break;
case S_CONNECTED:
case S_NOT_CONNECTED:
#if DEBUG_TRANSPORT
char *old = GNUNET_strdup (print_state (n->state));
char *new = GNUNET_strdup (print_state (state));
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Removed reset task for peer `%s' %s failed in state transition `%s' -> `%s' \n",
- GNUNET_i2s (&n->id), GST_plugins_a2s (n->address),
- old, new);
+ "Removed reset task for peer `%s' %s failed in state transition `%s' -> `%s' \n",
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), old, new);
GNUNET_free (old);
GNUNET_free (new);
#endif
default:
GNUNET_assert (0);
}
-
+ if (NULL != address_change_cb)
+ {
+ if (n->state == S_CONNECTED)
+ address_change_cb (callback_cls, &n->id, n->address);
+ else if (previous_state == S_CONNECTED)
+ address_change_cb (callback_cls, &n->id, NULL);
+ }
return GNUNET_OK;
}
static ssize_t
-send_with_plugin (const struct GNUNET_PeerIdentity *target, const char *msgbuf,
- size_t msgbuf_size, uint32_t priority,
- struct GNUNET_TIME_Relative timeout, struct Session *session,
- const struct GNUNET_HELLO_Address *address,
- int force_address, GNUNET_TRANSPORT_TransmitContinuation cont,
- void *cont_cls)
+send_with_session (struct NeighbourMapEntry *n,
+ const char *msgbuf, size_t msgbuf_size,
+ uint32_t priority,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
{
struct GNUNET_TRANSPORT_PluginFunctions *papi;
size_t ret = GNUNET_SYSERR;
- /* FIXME : ats returns an address with all values 0 */
- if (address == NULL)
- {
- if (cont != NULL)
- cont (cont_cls, target, GNUNET_SYSERR);
- return GNUNET_SYSERR;
- }
-
- if ((session == NULL) && (address->address_length == 0))
- {
- if (cont != NULL)
- cont (cont_cls, target, GNUNET_SYSERR);
- return GNUNET_SYSERR;
- }
+ GNUNET_assert (n != NULL);
+ GNUNET_assert (n->session != NULL);
- papi = GST_plugins_find (address->transport_name);
+ papi = GST_plugins_find (n->address->transport_name);
if (papi == NULL)
{
if (cont != NULL)
- cont (cont_cls, target, GNUNET_SYSERR);
+ cont (cont_cls, &n->id, GNUNET_SYSERR);
return GNUNET_SYSERR;
}
- ret =
- papi->send (papi->cls, target, msgbuf, msgbuf_size, 0, timeout, session,
- address->address,
- address->address_length, GNUNET_YES, cont, cont_cls);
+ ret = papi->send (papi->cls,
+ n->session,
+ msgbuf, msgbuf_size,
+ 0,
+ timeout,
+ cont, cont_cls);
- if (ret == -1)
- {
- if (cont != NULL)
- cont (cont_cls, target, GNUNET_SYSERR);
- }
+ if ((ret == -1) && (cont != NULL))
+ cont (cont_cls, &n->id, GNUNET_SYSERR);
return ret;
}
const struct GNUNET_PeerIdentity *receiver,
int success)
{
- struct MessageQueue *mq;
+ struct MessageQueue *mq = cls;
struct NeighbourMapEntry *n;
+ struct NeighbourMapEntry *tmp;
- mq = cls;
+ tmp = lookup_neighbour (receiver);
n = mq->n;
- if (NULL != n)
+ if ((NULL != n) && (tmp != NULL) && (tmp == n))
{
GNUNET_assert (n->is_active == mq);
n->is_active = NULL;
if (n->address == NULL)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "No address for peer `%s'\n",
+#if DEBUG_TRANSPORT
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No address for peer `%s'\n",
GNUNET_i2s (&n->id));
+#endif
+ GNUNET_CONTAINER_DLL_remove (n->messages_head, n->messages_tail, mq);
transmit_send_continuation (mq, &n->id, GNUNET_SYSERR);
GNUNET_assert (n->transmission_task == GNUNET_SCHEDULER_NO_TASK);
n->transmission_task = GNUNET_SCHEDULER_add_now (&transmission_task, n);
if ((n->address->address_length == 0) && (n->session == NULL))
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "No address for peer `%s'\n",
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No address for peer `%s'\n",
GNUNET_i2s (&n->id));
transmit_send_continuation (mq, &n->id, GNUNET_SYSERR);
GNUNET_assert (n->transmission_task == GNUNET_SCHEDULER_NO_TASK);
return;
}
- ret =
- send_with_plugin (&n->id, mq->message_buf, mq->message_buf_size, 0,
- timeout, n->session, n->address,
- GNUNET_YES, &transmit_send_continuation,
- mq);
+ ret = send_with_session(n,
+ mq->message_buf, mq->message_buf_size,
+ 0, timeout,
+ &transmit_send_continuation, mq);
+
if (ret == -1)
{
/* failure, but 'send' would not call continuation in this case,
* @param cls closure for callbacks
* @param connect_cb function to call if we connect to a peer
* @param disconnect_cb function to call if we disconnect from a peer
+ * @param peer_address_cb function to call if we change an active address
+ * of a neighbour
*/
void
-GST_neighbours_start (void *cls, GNUNET_TRANSPORT_NotifyConnect connect_cb,
- GNUNET_TRANSPORT_NotifyDisconnect disconnect_cb)
+GST_neighbours_start (void *cls,
+ GNUNET_TRANSPORT_NotifyConnect connect_cb,
+ GNUNET_TRANSPORT_NotifyDisconnect disconnect_cb,
+ GNUNET_TRANSPORT_PeerIterateCallback peer_address_cb)
{
callback_cls = cls;
connect_notify_cb = connect_cb;
disconnect_notify_cb = disconnect_cb;
+ address_change_cb = peer_address_cb;
neighbours = GNUNET_CONTAINER_multihashmap_create (NEIGHBOUR_TABLE_SIZE);
}
static int
-send_disconnect (const struct GNUNET_PeerIdentity *target,
- const struct GNUNET_HELLO_Address *address,
- struct Session *session)
+send_disconnect (struct NeighbourMapEntry * n)
{
size_t ret;
struct SessionDisconnectMessage disconnect_msg;
#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Sending DISCONNECT message to peer `%4s'\n",
- GNUNET_i2s (target));
+ GNUNET_i2s (&n->id));
#endif
disconnect_msg.header.size = htons (sizeof (struct SessionDisconnectMessage));
- disconnect_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT);
+ disconnect_msg.header.type =
+ htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_DISCONNECT);
disconnect_msg.reserved = htonl (0);
disconnect_msg.purpose.size =
htonl (sizeof (struct GNUNET_CRYPTO_RsaSignaturePurpose) +
&disconnect_msg.purpose,
&disconnect_msg.signature));
- ret =
- send_with_plugin (target, (const char *) &disconnect_msg,
- sizeof (disconnect_msg), UINT32_MAX,
- GNUNET_TIME_UNIT_FOREVER_REL, session, address,
- GNUNET_YES,
- &send_disconnect_cont, NULL);
+ ret = send_with_session (n,
+ (const char *) &disconnect_msg, sizeof (disconnect_msg),
+ UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL,
+ &send_disconnect_cont, NULL);
if (ret == GNUNET_SYSERR)
return GNUNET_SYSERR;
return GNUNET_OK;
}
+
/**
* Disconnect from the given neighbour, clean up the record.
*
if (is_disconnecting (n))
return;
-
/* send DISCONNECT MESSAGE */
- if ((previous_state == S_CONNECTED) || is_connecting (n))
+ if (previous_state == S_CONNECTED)
{
- if (GNUNET_OK ==
- send_disconnect (&n->id, n->address,
- n->session))
+ if (GNUNET_OK == send_disconnect (n))
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sent DISCONNECT_MSG to `%s'\n",
GNUNET_i2s (&n->id));
else
}
change_state (n, S_DISCONNECT);
- GST_validation_set_address_use (&n->id,
- n->address,
- n->session,
- GNUNET_NO);
- if (n->state == S_CONNECTED)
+ if (previous_state == S_CONNECTED)
{
GNUNET_assert (NULL != n->address);
- GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_NO);
+ if (n->address_state == USED)
+ {
+ GST_validation_set_address_use (n->address, n->session, GNUNET_NO, __LINE__);
+ GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_NO);
+ n->address_state = UNUSED;
+ }
}
if (n->address != NULL)
{
struct GNUNET_TRANSPORT_PluginFunctions *papi;
+
papi = GST_plugins_find (n->address->transport_name);
if (papi != NULL)
papi->disconnect (papi->cls, &n->id);
n->is_active = NULL;
}
- switch (previous_state) {
- case S_CONNECTED:
- GNUNET_assert (neighbours_connected > 0);
- neighbours_connected--;
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != n->keepalive_task);
- GNUNET_SCHEDULER_cancel (n->keepalive_task);
- n->keepalive_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), -1,
- GNUNET_NO);
- disconnect_notify_cb (callback_cls, &n->id);
- break;
- case S_FAST_RECONNECT:
- GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), -1,
- GNUNET_NO);
- GNUNET_STATISTICS_update (GST_stats,
- gettext_noop
- ("# fast reconnects failed"),
- 1, GNUNET_NO);
- disconnect_notify_cb (callback_cls, &n->id);
- default:
- break;
+ switch (previous_state)
+ {
+ case S_CONNECTED:
+ GNUNET_assert (neighbours_connected > 0);
+ neighbours_connected--;
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != n->keepalive_task);
+ GNUNET_SCHEDULER_cancel (n->keepalive_task);
+ n->keepalive_task = GNUNET_SCHEDULER_NO_TASK;
+ n->expect_latency_response = GNUNET_NO;
+ GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), -1,
+ GNUNET_NO);
+ disconnect_notify_cb (callback_cls, &n->id);
+ break;
+ case S_FAST_RECONNECT:
+ GNUNET_STATISTICS_update (GST_stats,
+ gettext_noop ("# fast reconnects failed"), 1,
+ GNUNET_NO);
+ disconnect_notify_cb (callback_cls, &n->id);
+ break;
+ default:
+ break;
}
GNUNET_ATS_suggest_address_cancel (GST_ats, &n->id);
GNUNET_SCHEDULER_cancel (n->ats_suggest);
n->ats_suggest = GNUNET_SCHEDULER_NO_TASK;
}
+ if (n->ats_request != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (n->ats_request);
+ n->ats_request = GNUNET_SCHEDULER_NO_TASK;
+ }
+
if (GNUNET_SCHEDULER_NO_TASK != n->timeout_task)
{
GNUNET_SCHEDULER_cancel (n->timeout_task);
GNUNET_SCHEDULER_cancel (n->transmission_task);
n->transmission_task = GNUNET_SCHEDULER_NO_TASK;
}
+ if (NULL != n->fast_reconnect_address)
+ {
+ GNUNET_HELLO_address_free (n->fast_reconnect_address);
+ n->fast_reconnect_address = NULL;
+ }
if (NULL != n->address)
{
GNUNET_HELLO_address_free (n->address);
struct NeighbourMapEntry *n = cls;
n->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peer`%4s' disconnected due to timeout\n",
+ GNUNET_i2s (&n->id));
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
struct GNUNET_MessageHeader m;
int ret;
+ GNUNET_assert (S_CONNECTED == n->state);
n->keepalive_task =
GNUNET_SCHEDULER_add_delayed (KEEPALIVE_FREQUENCY,
&neighbour_keepalive_task, n);
- GNUNET_assert (S_CONNECTED == n->state);
GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# keepalives sent"), 1,
GNUNET_NO);
m.size = htons (sizeof (struct GNUNET_MessageHeader));
m.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_KEEPALIVE);
-
- ret = send_with_plugin (&n->id, (const void *) &m, sizeof (m),
- UINT32_MAX /* priority */ ,
- GNUNET_TIME_UNIT_FOREVER_REL, n->session, n->address,
- GNUNET_YES, NULL, NULL);
+ ret = send_with_session (n,
+ (const void *) &m, sizeof (m),
+ UINT32_MAX /* priority */ ,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ NULL, NULL);
n->expect_latency_response = GNUNET_NO;
- n->keep_alive_sent = GNUNET_TIME_absolute_get_zero();
+ n->keep_alive_sent = GNUNET_TIME_absolute_get_zero ();
if (ret != GNUNET_SYSERR)
{
n->expect_latency_response = GNUNET_YES;
- n->keep_alive_sent = GNUNET_TIME_absolute_get();
+ n->keep_alive_sent = GNUNET_TIME_absolute_get ();
}
}
n->ats_suggest = GNUNET_SCHEDULER_NO_TASK;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- " ATS did not suggested address to connect to peer `%s'\n",
+ "ATS did not suggested address to connect to peer `%s'\n",
GNUNET_i2s (&n->id));
+ GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# ATS address suggestions failed"), 1,
+ GNUNET_NO);
+
+
disconnect_neighbour (n);
}
GNUNET_CONTAINER_multihashmap_iterate (neighbours, &disconnect_all_neighbours,
NULL);
GNUNET_CONTAINER_multihashmap_destroy (neighbours);
- GNUNET_assert (neighbours_connected == 0);
+// GNUNET_assert (neighbours_connected == 0);
neighbours = NULL;
callback_cls = NULL;
connect_notify_cb = NULL;
disconnect_notify_cb = NULL;
+ address_change_cb = NULL;
}
struct ContinutionContext
struct Session *session;
};
+static void
+send_outbound_quota (const struct GNUNET_PeerIdentity *target,
+ struct GNUNET_BANDWIDTH_Value32NBO quota)
+{
+ struct QuotaSetMessage q_msg;
+
+#if DEBUG_TRANSPORT
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Sending outbound quota of %u Bps for peer `%s' to all clients\n",
+ ntohl (quota.value__), GNUNET_i2s (target));
+#endif
+ q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
+ q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
+ q_msg.quota = quota;
+ q_msg.peer = (*target);
+ GST_clients_broadcast (&q_msg.header, GNUNET_NO);
+}
+
/**
* We tried to send a SESSION_CONNECT message to another peer. If this
* succeeded, we change the state. If it failed, we should tell
* ATS to not use this address anymore (until it is re-validated).
*
* @param cls the 'struct GNUNET_HELLO_Address' of the address that was tried
+ * @param target peer to send the message to
* @param success GNUNET_OK on success
*/
static void
send_connect_continuation (void *cls, const struct GNUNET_PeerIdentity *target,
int success)
{
- struct ContinutionContext * cc = cls;
+ struct ContinutionContext *cc = cls;
struct NeighbourMapEntry *n = lookup_neighbour (&cc->address->peer);
-
+
if (GNUNET_YES != success)
- GNUNET_ATS_address_destroyed (GST_ats, cc->address, NULL);
- //GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
- if ( (NULL == neighbours) ||
- (NULL == n) ||
- (n->state == S_DISCONNECT))
+ {
+ GNUNET_assert (strlen (cc->address->transport_name) > 0);
+ GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
+ }
+ if ((NULL == neighbours) || (NULL == n) || (n->state == S_DISCONNECT))
{
GNUNET_HELLO_address_free (cc->address);
GNUNET_free (cc);
}
if ((GNUNET_YES == success) &&
- ((n->state == S_NOT_CONNECTED) || (n->state == S_CONNECT_SENT)))
+ ((n->state == S_NOT_CONNECTED) || (n->state == S_CONNECT_SENT)))
{
change_state (n, S_CONNECT_SENT);
GNUNET_HELLO_address_free (cc->address);
}
if ((GNUNET_NO == success) &&
- ((n->state == S_NOT_CONNECTED) || (n->state == S_CONNECT_SENT)))
+ ((n->state == S_NOT_CONNECTED) || (n->state == S_CONNECT_SENT)))
{
#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Failed to send CONNECT_MSG to peer `%4s' with address '%s' session %p, asking ATS for new address \n",
- GNUNET_i2s (&n->id),
- GST_plugins_a2s (n->address),
- n->session);
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), n->session);
#endif
change_state (n, S_NOT_CONNECTED);
- GNUNET_ATS_address_destroyed (GST_ats, cc->address, NULL);
- //GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
-
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (n->ats_suggest);
n->ats_suggest =
- GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT, &ats_suggest_cancel,
- n);
+ GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT, &ats_suggest_cancel,
+ n);
GNUNET_ATS_suggest_address (GST_ats, &n->id);
}
GNUNET_HELLO_address_free (cc->address);
}
+static void
+ats_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct NeighbourMapEntry *n = cls;
+ n->ats_request = GNUNET_SCHEDULER_NO_TASK;
+
+ n->ats_suggest =
+ GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT, ats_suggest_cancel,
+ n);
+}
+
+
/**
* We tried to switch addresses with an peer already connected. If it failed,
* we should tell ATS to not use this address anymore (until it is re-validated).
*
* @param cls the 'struct NeighbourMapEntry'
+ * @param target peer to send the message to
* @param success GNUNET_OK on success
*/
static void
const struct GNUNET_PeerIdentity *target,
int success)
{
- struct ContinutionContext * cc = cls;
+ struct ContinutionContext *cc = cls;
struct NeighbourMapEntry *n;
if (neighbours == NULL)
return; /* neighbour is going away */
}
- n = lookup_neighbour(&cc->address->peer);
+ n = lookup_neighbour (&cc->address->peer);
if ((n == NULL) || (is_disconnecting (n)))
{
GNUNET_HELLO_address_free (cc->address);
GNUNET_assert ((n->state == S_CONNECTED) || (n->state == S_FAST_RECONNECT));
if (GNUNET_YES != success)
{
-#if DEBUG_TRANSPORT
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to switch connected peer `%s' to address '%s' session %X, asking ATS for new address \n",
- GNUNET_i2s (&n->id),
- GST_plugins_a2s (n->address), n->session);
-#endif
- GNUNET_ATS_address_destroyed (GST_ats, cc->address, NULL);
- //GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
+ "Failed to switch connected peer `%s' in state %s to address '%s' session %X, asking ATS for new address \n",
+ GNUNET_i2s (&n->id), print_state(n->state), GST_plugins_a2s (cc->address), cc->session);
+
+ GNUNET_assert (strlen (cc->address->transport_name) > 0);
+ GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
+ {
GNUNET_SCHEDULER_cancel (n->ats_suggest);
- n->ats_suggest =
+ n->ats_suggest = GNUNET_SCHEDULER_NO_TASK;
+ }
+
+ if (n->state == S_FAST_RECONNECT)
+ {
+ if (GNUNET_SCHEDULER_NO_TASK == n->ats_request)
+ {
+ /* Throtteled ATS request for fast reconnect */
+ struct GNUNET_TIME_Relative delay = GNUNET_TIME_relative_multiply(FAST_RECONNECT_RATE, n->fast_reconnect_attempts);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Fast reconnect attempt %u failed, delay ATS request for %llu ms\n", n->fast_reconnect_attempts, delay.rel_value);
+ n->ats_request =
+ GNUNET_SCHEDULER_add_delayed (delay,
+ ats_request,
+ n);
+ }
+ }
+ else
+ {
+ /* Immediate ATS request for connected peers */
+ n->ats_suggest =
GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT, ats_suggest_cancel,
n);
- GNUNET_ATS_suggest_address (GST_ats, &n->id);
+ GNUNET_ATS_suggest_address (GST_ats, &n->id);
+ }
GNUNET_HELLO_address_free (cc->address);
GNUNET_free (cc);
return;
}
/* Tell ATS that switching addresses was successful */
- switch (n->state) {
- case S_CONNECTED:
- GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_YES);
- break;
- case S_FAST_RECONNECT:
+ switch (n->state)
+ {
+ case S_CONNECTED:
+ if (n->address_state == FRESH)
+ {
+ GST_validation_set_address_use (cc->address, cc->session, GNUNET_YES, __LINE__);
+ GNUNET_ATS_address_update (GST_ats, cc->address, cc->session, NULL, 0);
+ if (cc->session != n->session)
+ GNUNET_break (0);
+ GNUNET_ATS_address_in_use (GST_ats, cc->address, cc->session, GNUNET_YES);
+ n->address_state = USED;
+ }
+ break;
+ case S_FAST_RECONNECT:
#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Successful fast reconnect to peer `%s'\n", GNUNET_i2s (&n->id));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Successful fast reconnect to peer `%s'\n",
+ GNUNET_i2s (&n->id));
#endif
- change_state (n, S_CONNECTED);
- neighbours_connected++;
- GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), 1,
- GNUNET_NO);
-
- GST_validation_set_address_use (&n->id,
- cc->address,
- cc->session,
- GNUNET_YES);
+ change_state (n, S_CONNECTED);
+ neighbours_connected++;
+ GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), 1,
+ GNUNET_NO);
+ if (n->address_state == FRESH)
+ {
+ GST_validation_set_address_use (cc->address, cc->session, GNUNET_YES, __LINE__);
+ GNUNET_ATS_address_update (GST_ats, cc->address, cc->session, NULL, 0);
GNUNET_ATS_address_in_use (GST_ats, cc->address, cc->session, GNUNET_YES);
+ n->address_state = USED;
+ }
- if (n->keepalive_task == GNUNET_SCHEDULER_NO_TASK)
- n->keepalive_task = GNUNET_SCHEDULER_add_now (&neighbour_keepalive_task, n);
+ if (n->keepalive_task == GNUNET_SCHEDULER_NO_TASK)
+ n->keepalive_task =
+ GNUNET_SCHEDULER_add_now (&neighbour_keepalive_task, n);
- /* Updating quotas */
- struct QuotaSetMessage q_msg;
- GST_neighbours_set_incoming_quota (&n->id, n->bandwidth_in);
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Sending outbound quota of %u Bps for peer `%s' to all clients\n",
- ntohl (n->bandwidth_out.value__), GNUNET_i2s (peer));
-#endif
- q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
- q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
- q_msg.quota = n->bandwidth_out;
- q_msg.peer = (*target);
- GST_clients_broadcast (&q_msg.header, GNUNET_NO);
- default:
- break;
+ /* Updating quotas */
+ GST_neighbours_set_incoming_quota (&n->id, n->bandwidth_in);
+ send_outbound_quota (target, n->bandwidth_out);
+
+ default:
+ break;
}
GNUNET_HELLO_address_free (cc->address);
GNUNET_free (cc);
}
+
/**
* We tried to send a SESSION_CONNECT message to another peer. If this
* succeeded, we change the state. If it failed, we should tell
* ATS to not use this address anymore (until it is re-validated).
*
* @param cls the 'struct NeighbourMapEntry'
+ * @param target peer to send the message to
* @param success GNUNET_OK on success
*/
static void
const struct GNUNET_PeerIdentity *target,
int success)
{
- struct ContinutionContext * cc = cls;
+ struct ContinutionContext *cc = cls;
struct NeighbourMapEntry *n;
if (neighbours == NULL)
return; /* neighbour is going away */
}
- n = lookup_neighbour(&cc->address->peer);
+ n = lookup_neighbour (&cc->address->peer);
if ((n == NULL) || (is_disconnecting (n)))
{
GNUNET_HELLO_address_free (cc->address);
#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Failed to send CONNECT_MSG to peer `%4s' with address '%s' session %X, asking ATS for new address \n",
- GNUNET_i2s (&n->id),
- GST_plugins_a2s (n->address),
- n->session);
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), n->session);
#endif
change_state (n, S_NOT_CONNECTED);
-
- GNUNET_ATS_address_destroyed (GST_ats, cc->address, NULL);
- //GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
+ GNUNET_assert (strlen (cc->address->transport_name) > 0);
+ GNUNET_ATS_address_destroyed (GST_ats, cc->address, cc->session);
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (n->ats_suggest);
GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT, ats_suggest_cancel,
n);
GNUNET_ATS_suggest_address (GST_ats, &n->id);
-
GNUNET_HELLO_address_free (cc->address);
GNUNET_free (cc);
}
+
/**
* For an existing neighbour record, set the active connection to
- * the given address.
+ * use the given address.
*
* @param peer identity of the peer to switch the address for
* @param address address of the other peer, NULL if other peer
* @param session session to use (or NULL)
* @param ats performance data
* @param ats_count number of entries in ats
+ * @param bandwidth_in inbound quota to be used when connection is up
+ * @param bandwidth_out outbound quota to be used when connection is up
* @return GNUNET_YES if we are currently connected, GNUNET_NO if the
* connection is not up (yet)
*/
int
-GST_neighbours_switch_to_address_3way (const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
+GST_neighbours_switch_to_address (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Address
+ *address,
struct Session *session,
const struct GNUNET_ATS_Information *ats,
uint32_t ats_count,
{
struct NeighbourMapEntry *n;
struct SessionConnectMessage connect_msg;
- struct ContinutionContext * cc;
+ struct ContinutionContext *cc;
size_t msg_len;
size_t ret;
return GNUNET_NO;
}
GNUNET_assert (address->transport_name != NULL);
- if ( (session == NULL) && (0 == address->address_length) )
+ if ((session == NULL) && (0 == address->address_length))
{
GNUNET_break_op (0);
- GNUNET_ATS_address_destroyed (GST_ats, address, session);
+ /* FIXME: is this actually possible? When does this happen? */
+ if (strlen (address->transport_name) > 0)
+ GNUNET_ATS_address_destroyed (GST_ats, address, session);
GNUNET_ATS_suggest_address (GST_ats, peer);
return GNUNET_NO;
}
/* checks successful and neighbour != NULL */
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"ATS tells us to switch to address '%s' session %p for peer `%s' in state `%s'\n",
- GST_plugins_a2s (address),
+ (address->address_length != 0) ? GST_plugins_a2s (address): "<inbound>",
session,
GNUNET_i2s (peer),
- print_state(n->state));
-#endif
+ print_state (n->state));
+
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (n->ats_suggest);
n->ats_suggest = GNUNET_SCHEDULER_NO_TASK;
}
- /* do not switch addresses just update quotas */
- if ( (n->state == S_CONNECTED) &&
- (NULL != n->address) &&
- (0 == GNUNET_HELLO_address_cmp (address,
- n->address)) &&
- (n->session == session) )
+
+
+ if (n->state == S_FAST_RECONNECT)
{
- struct QuotaSetMessage q_msg;
+ /* Throtteled fast reconnect */
+
+ if (NULL == n->fast_reconnect_address)
+ {
+ n->fast_reconnect_address = GNUNET_HELLO_address_copy (address);
+
+ }
+ else if (0 == GNUNET_HELLO_address_cmp(address, n->fast_reconnect_address))
+ {
+ n->fast_reconnect_attempts ++;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "FAST RECONNECT to peer `%s' and address '%s' with identical address attempt %u\n",
+ GNUNET_i2s (&n->id), GST_plugins_a2s (address), n->fast_reconnect_attempts);
+ }
+ }
+ else
+ {
+ n->fast_reconnect_attempts = 0;
+ }
+
+ /* do not switch addresses just update quotas */
+ if ((n->state == S_CONNECTED) && (NULL != n->address) &&
+ (0 == GNUNET_HELLO_address_cmp (address, n->address)) &&
+ (n->session == session))
+ {
n->bandwidth_in = bandwidth_in;
n->bandwidth_out = bandwidth_out;
GST_neighbours_set_incoming_quota (&n->id, n->bandwidth_in);
-
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Sending outbound quota of %u Bps and inbound quota of %u Bps for peer `%s' to all clients\n",
- ntohl (n->bandwidth_out.value__),
- ntohl (n->bandwidth_in.value__), GNUNET_i2s (peer));
-#endif
- q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
- q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
- q_msg.quota = n->bandwidth_out;
- q_msg.peer = (*peer);
- GST_clients_broadcast (&q_msg.header, GNUNET_NO);
- return GNUNET_NO;
+ send_outbound_quota (peer, n->bandwidth_out);
+ return GNUNET_NO;
}
if (n->state == S_CONNECTED)
{
/* mark old address as no longer used */
GNUNET_assert (NULL != n->address);
- GST_validation_set_address_use (&n->id,
- n->address,
- n->session,
- GNUNET_NO);
- GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_NO);
+ if (n->address_state == USED)
+ {
+ GST_validation_set_address_use (n->address, n->session, GNUNET_NO, __LINE__);
+ GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_NO);
+ n->address_state = UNUSED;
+ }
}
/* set new address */
if (NULL != n->address)
GNUNET_HELLO_address_free (n->address);
n->address = GNUNET_HELLO_address_copy (address);
- n->session = session;
+ n->address_state = FRESH;
n->bandwidth_in = bandwidth_in;
n->bandwidth_out = bandwidth_out;
GNUNET_SCHEDULER_cancel (n->timeout_task);
n->timeout_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
&neighbour_timeout_task, n);
+
+ if (NULL != address_change_cb && n->state == S_CONNECTED)
+ address_change_cb (callback_cls, &n->id, n->address);
+
+ /* Obtain an session for this address from plugin */
+ struct GNUNET_TRANSPORT_PluginFunctions *papi;
+ papi = GST_plugins_find (address->transport_name);
+
+ if (papi == NULL)
+ {
+ /* we don't have the plugin for this address */
+ GNUNET_ATS_address_destroyed (GST_ats, n->address, NULL);
+
+ if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (n->ats_suggest);
+ n->ats_suggest = GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT,
+ ats_suggest_cancel,
+ n);
+ GNUNET_ATS_suggest_address (GST_ats, &n->id);
+ GNUNET_HELLO_address_free (n->address);
+ n->address = NULL;
+ n->session = NULL;
+ return GNUNET_NO;
+ }
+
+ if (session == NULL)
+ {
+ n->session = papi->get_session (papi->cls, address);
+ /* Session could not be initiated */
+ if (n->session == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to obtain new session %p for peer `%s' and address '%s'\n",
+ n->session, GNUNET_i2s (&n->id), GST_plugins_a2s (n->address));
+
+ GNUNET_ATS_address_destroyed (GST_ats, n->address, NULL);
+
+ if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (n->ats_suggest);
+ n->ats_suggest = GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT,
+ ats_suggest_cancel,
+ n);
+ GNUNET_ATS_suggest_address (GST_ats, &n->id);
+ GNUNET_HELLO_address_free (n->address);
+ n->address = NULL;
+ n->session = NULL;
+ return GNUNET_NO;
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Obtained new session %p for peer `%s' and address '%s'\n",
+ n->session, GNUNET_i2s (&n->id), GST_plugins_a2s (n->address));
+ /* Telling ATS about new session */
+ GNUNET_ATS_address_update (GST_ats, n->address, n->session, NULL, 0);
+ }
+ else
+ {
+ n->session = session;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Using existing session %p for peer `%s' and address '%s'\n",
+ n->session,
+ GNUNET_i2s (&n->id),
+ (address->address_length != 0) ? GST_plugins_a2s (address): "<inbound>");
+ }
+
switch (n->state)
{
- case S_NOT_CONNECTED:
+ case S_NOT_CONNECTED:
case S_CONNECT_SENT:
msg_len = sizeof (struct SessionConnectMessage);
connect_msg.header.size = htons (msg_len);
connect_msg.timestamp =
GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
- cc = GNUNET_malloc(sizeof (struct ContinutionContext));
- cc->session = session;
+ cc = GNUNET_malloc (sizeof (struct ContinutionContext));
+ cc->session = n->session;
cc->address = GNUNET_HELLO_address_copy (address);
- ret =
- send_with_plugin (peer, (const char *) &connect_msg, msg_len,
- UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL, session,
- address, GNUNET_YES,
- &send_connect_continuation,
- cc);
+
+ ret = send_with_session (n,
+ (const char *) &connect_msg, msg_len,
+ UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL,
+ &send_connect_continuation, cc);
+
return GNUNET_NO;
case S_CONNECT_RECV:
/* We received a CONNECT message and asked ATS for an address */
connect_msg.reserved = htonl (0);
connect_msg.timestamp =
GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
- cc = GNUNET_malloc(sizeof (struct ContinutionContext));
- cc->session = session;
+ cc = GNUNET_malloc (sizeof (struct ContinutionContext));
+ cc->session = n->session;
cc->address = GNUNET_HELLO_address_copy (address);
- ret =
- send_with_plugin (&n->id, (const void *) &connect_msg, msg_len,
- UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL, session,
- address, GNUNET_YES,
- &send_connect_ack_continuation, cc);
+
+ ret = send_with_session(n,
+ (const void *) &connect_msg, msg_len,
+ UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL,
+ &send_connect_ack_continuation,
+ cc);
return GNUNET_NO;
case S_CONNECTED:
case S_FAST_RECONNECT:
- /* connected peer is switching addresses or tries fast reconnect*/
- GST_validation_set_address_use (&n->id,
- n->address,
- n->session,
- GNUNET_YES);
+ /* connected peer is switching addresses or tries fast reconnect */
msg_len = sizeof (struct SessionConnectMessage);
connect_msg.header.size = htons (msg_len);
connect_msg.header.type =
connect_msg.reserved = htonl (0);
connect_msg.timestamp =
GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
- cc = GNUNET_malloc(sizeof (struct ContinutionContext));
- cc->session = session;
+ cc = GNUNET_malloc (sizeof (struct ContinutionContext));
+ cc->session = n->session;
cc->address = GNUNET_HELLO_address_copy (address);
- ret =
- send_with_plugin (peer, (const char *) &connect_msg, msg_len,
- UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL, session,
- address, GNUNET_YES,
- &send_switch_address_continuation, cc);
+ ret = send_with_session(n,
+ (const void *) &connect_msg, msg_len,
+ UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL,
+ &send_switch_address_continuation, cc);
if (ret == GNUNET_SYSERR)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Failed to send CONNECT_MESSAGE to `%4s' using address '%s' session %X\n",
- GNUNET_i2s (peer),
- GST_plugins_a2s (address), session);
+ GNUNET_i2s (peer), GST_plugins_a2s (address), session);
}
return GNUNET_NO;
default:
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Invalid connection state to switch addresses %u \n", n->state);
+ "Invalid connection state to switch addresses %u \n", n->state);
GNUNET_break_op (0);
return GNUNET_NO;
}
/**
* Obtain current latency information for the given neighbour.
*
- * @param peer
+ * @param peer
* @return observed latency of the address, FOREVER if the address was
* never successfully validated
*/
struct NeighbourMapEntry *n;
n = lookup_neighbour (peer);
- if ( (NULL == n) ||
- ( (n->address == NULL) && (n->session == NULL) ) )
+ if ((NULL == n) || ((n->address == NULL) && (n->session == NULL)))
return GNUNET_TIME_UNIT_FOREVER_REL;
return n->latency;
}
+/**
+ * Obtain current address information for the given neighbour.
+ *
+ * @param peer
+ * @return address currently used
+ */
+struct GNUNET_HELLO_Address *
+GST_neighbour_get_current_address (const struct GNUNET_PeerIdentity *peer)
+{
+ struct NeighbourMapEntry *n;
+
+ n = lookup_neighbour (peer);
+ if ((NULL == n) || ((n->address == NULL) && (n->session == NULL)))
+ return NULL;
+
+ return n->address;
+}
+
+
/**
* Create an entry in the neighbour map for the given peer
n = GNUNET_malloc (sizeof (struct NeighbourMapEntry));
n->id = *peer;
n->state = S_NOT_CONNECTED;
- n->latency = GNUNET_TIME_relative_get_forever();
+ n->latency = GNUNET_TIME_relative_get_forever ();
GNUNET_BANDWIDTH_tracker_init (&n->in_tracker,
GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
MAX_BANDWIDTH_CARRY_S);
return; /* doesn't affect us */
if (n->state == S_CONNECTED)
{
- GST_validation_set_address_use (&n->id,
- n->address,
- n->session,
- GNUNET_NO);
- GNUNET_ATS_address_in_use (GST_ats,n->address, n->session, GNUNET_NO);
- }
-
+ if (n->address_state == USED)
+ {
+ GST_validation_set_address_use (n->address, n->session, GNUNET_NO, __LINE__);
+ GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_NO);
+ n->address_state = UNUSED;
- //GNUNET_ATS_address_destroyed(GST_ats, n->address, n->session);
+ }
+ }
if (NULL != n->address)
{
n->address = NULL;
}
n->session = NULL;
-
+
/* not connected anymore anyway, shouldn't matter */
- if ((S_CONNECTED != n->state) && (!is_connecting (n)))
+ if (S_CONNECTED != n->state)
return;
- /* connected, try fast reconnect */
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Trying fast reconnect to peer `%s'\n", GNUNET_i2s (peer));
-#endif
- change_state (n, S_FAST_RECONNECT);
- GNUNET_assert (neighbours_connected > 0);
- neighbours_connected--;
-
if (n->keepalive_task != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (n->keepalive_task);
n->keepalive_task = GNUNET_SCHEDULER_NO_TASK;
+ n->expect_latency_response = GNUNET_NO;
}
+ /* connected, try fast reconnect */
+ /* statistics "transport" : "# peers connected" -= 1
+ * neighbours_connected -= 1
+ * BUT: no disconnect_cb to notify clients about disconnect
+ */
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Trying fast reconnect to peer `%s'\n",
+ GNUNET_i2s (peer));
+
+ GNUNET_assert (neighbours_connected > 0);
+ change_state (n, S_FAST_RECONNECT);
+ neighbours_connected--;
+ GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), -1,
+ GNUNET_NO);
+
+
/* We are connected, so ask ATS to switch addresses */
GNUNET_SCHEDULER_cancel (n->timeout_task);
- n->timeout_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_DISCONNECT_SESSION_TIMEOUT,
+ n->timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_DISCONNECT_SESSION_TIMEOUT,
&neighbour_timeout_task, n);
/* try QUICKLY to re-establish a connection, reduce timeout! */
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (n->ats_suggest);
- n->ats_suggest =
- GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT, &ats_suggest_cancel,
+ n->ats_suggest = GNUNET_SCHEDULER_add_delayed (ATS_RESPONSE_TIMEOUT,
+ &ats_suggest_cancel,
n);
GNUNET_ATS_suggest_address (GST_ats, peer);
}
return;
}
- if ((n->session == NULL) && (n->address == NULL) )
+ if ((n->session == NULL) && (n->address == NULL))
{
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
return;
struct GNUNET_MessageHeader m;
+
m.size = htons (sizeof (struct GNUNET_MessageHeader));
m.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_KEEPALIVE_RESPONSE);
- send_with_plugin (&n->id, (const void *) &m, sizeof (m),
- UINT32_MAX /* priority */ ,
- GNUNET_TIME_UNIT_FOREVER_REL, n->session, n->address,
- GNUNET_YES, NULL, NULL);
+ send_with_session(n,
+ (const void *) &m, sizeof (m),
+ UINT32_MAX,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ NULL, NULL);
}
/**
* to this peer
*
* @param neighbour neighbour to keep alive
+ * @param ats performance data
+ * @param ats_count number of entries in ats
*/
void
GST_neighbours_keepalive_response (const struct GNUNET_PeerIdentity *neighbour,
- const struct GNUNET_ATS_Information * ats,
+ const struct GNUNET_ATS_Information *ats,
uint32_t ats_count)
{
struct NeighbourMapEntry *n;
- struct GNUNET_ATS_Information * ats_new;
+ struct GNUNET_ATS_Information *ats_new;
uint32_t latency;
if (neighbours == NULL)
}
n = lookup_neighbour (neighbour);
- if (NULL == n)
+ if ((NULL == n) || (n->state != S_CONNECTED))
{
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
}
n->expect_latency_response = GNUNET_NO;
- GNUNET_assert (n->keep_alive_sent.abs_value != GNUNET_TIME_absolute_get_zero().abs_value);
- n->latency = GNUNET_TIME_absolute_get_difference(n->keep_alive_sent, GNUNET_TIME_absolute_get());
+ GNUNET_assert (n->keep_alive_sent.abs_value !=
+ GNUNET_TIME_absolute_get_zero ().abs_value);
+ n->latency =
+ GNUNET_TIME_absolute_get_difference (n->keep_alive_sent,
+ GNUNET_TIME_absolute_get ());
#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Latency for peer `%s' is %llu ms\n",
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Latency for peer `%s' is %llu ms\n",
GNUNET_i2s (&n->id), n->latency.rel_value);
#endif
- if (n->latency.rel_value == GNUNET_TIME_relative_get_forever().rel_value)
+ if (n->latency.rel_value == GNUNET_TIME_relative_get_forever ().rel_value)
+ {
GNUNET_ATS_address_update (GST_ats, n->address, n->session, ats, ats_count);
+ }
else
{
- ats_new = GNUNET_malloc (sizeof (struct GNUNET_ATS_Information) * (ats_count + 1));
+ ats_new =
+ GNUNET_malloc (sizeof (struct GNUNET_ATS_Information) *
+ (ats_count + 1));
memcpy (ats_new, ats, sizeof (struct GNUNET_ATS_Information) * ats_count);
/* add latency */
latency = n->latency.rel_value;
ats_new[ats_count].value = htonl (latency);
- GNUNET_ATS_address_update (GST_ats, n->address, n->session, ats_new, ats_count + 1);
+ GNUNET_ATS_address_update (GST_ats, n->address, n->session, ats_new,
+ ats_count + 1);
GNUNET_free (ats_new);
}
}
uint32_t ats_count)
{
const struct SessionConnectMessage *scm;
- struct QuotaSetMessage q_msg;
struct GNUNET_MessageHeader msg;
struct NeighbourMapEntry *n;
size_t msg_len;
size_t ret;
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received CONNECT_ACK message from peer `%s'\n",
GNUNET_i2s (peer));
-#endif
if (ntohs (message->size) != sizeof (struct SessionConnectMessage))
{
n = lookup_neighbour (peer);
if (NULL == n)
{
- /* we did not send 'CONNECT' (how could we? no record for this peer!) */
- GNUNET_break_op (0);
+ /* we did not send 'CONNECT' -- at least not recently */
+ GNUNET_STATISTICS_update (GST_stats,
+ gettext_noop
+ ("# unexpected CONNECT_ACK messages (no peer)"),
+ 1, GNUNET_NO);
return;
- }
+ }
/* Additional check
*
* We also received an CONNECT message, switched from SENDT to RECV and
* ATS already suggested us an address after a successful blacklist check
*/
- if ((n->state != S_CONNECT_SENT) && ((n->state != S_CONNECT_RECV) && (n->address != NULL)))
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received CONNECT_ACK message from peer `%s' in state `%s'\n",
+ GNUNET_i2s (peer),
+ print_state(n->state));
+
+ if ((n->address != NULL) && (n->state == S_CONNECTED))
+ {
+ /* After fast reconnect: send ACK (ACK) even when we are connected */
+ msg_len = sizeof (msg);
+ msg.size = htons (msg_len);
+ msg.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_ACK);
+
+ ret = send_with_session(n,
+ (const char *) &msg, msg_len,
+ UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL,
+ NULL, NULL);
+
+ if (ret == GNUNET_SYSERR)
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to send SESSION_ACK to `%4s' using address '%s' session %X\n",
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), n->session);
+ return;
+ }
+
+ if ((n->state != S_CONNECT_SENT) &&
+ ((n->state != S_CONNECT_RECV) && (n->address != NULL)))
{
GNUNET_STATISTICS_update (GST_stats,
- gettext_noop ("# unexpected CONNECT_ACK messages"), 1,
- GNUNET_NO);
+ gettext_noop
+ ("# unexpected CONNECT_ACK messages"), 1,
+ GNUNET_NO);
return;
}
+ if (n->state != S_CONNECTED)
+ change_state (n, S_CONNECTED);
if (NULL != session)
+ {
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"transport-ats",
"Giving ATS session %p of plugin %s for peer %s\n",
session, address->transport_name, GNUNET_i2s (peer));
+ }
GNUNET_ATS_address_update (GST_ats, address, session, ats, ats_count);
GNUNET_assert (NULL != n->address);
- change_state (n, S_CONNECTED);
- GST_validation_set_address_use (&n->id,
- n->address,
- n->session,
- GNUNET_YES);
- GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_YES);
+ if ((n->address_state == FRESH) && (0 == GNUNET_HELLO_address_cmp(address, n->address)))
+ {
+ GST_validation_set_address_use (n->address, n->session, GNUNET_YES, __LINE__);
+ GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_YES);
+ n->address_state = USED;
+ }
GST_neighbours_set_incoming_quota (&n->id, n->bandwidth_in);
msg.size = htons (msg_len);
msg.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_ACK);
- ret =
- send_with_plugin (&n->id, (const char *) &msg, msg_len, UINT32_MAX,
- GNUNET_TIME_UNIT_FOREVER_REL, n->session,
- n->address, GNUNET_YES, NULL,
- NULL);
+ ret = send_with_session(n,
+ (const char *) &msg, msg_len,
+ UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_REL,
+ NULL, NULL);
if (ret == GNUNET_SYSERR)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Failed to send SESSION_ACK to `%4s' using address '%s' session %X\n",
- GNUNET_i2s (&n->id),
- GST_plugins_a2s (n->address), n->session);
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), n->session);
if (n->keepalive_task == GNUNET_SCHEDULER_NO_TASK)
n->keepalive_task = GNUNET_SCHEDULER_add_now (&neighbour_keepalive_task, n);
-
+
neighbours_connected++;
GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), 1,
- GNUNET_NO);
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Notify about connect of `%4s' using address '%s' session %X LINE %u\n",
- GNUNET_i2s (&n->id),
- GST_plugins_a2s (n->address), n->session,
- __LINE__);
-#endif
- connect_notify_cb (callback_cls, &n->id, ats, ats_count);
-
+ GNUNET_NO);
#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Sending outbound quota of %u Bps for peer `%s' to all clients\n",
- ntohl (n->bandwidth_out.value__), GNUNET_i2s (peer));
+ "Notify about connect of `%4s' using address '%s' session %X LINE %u\n",
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), n->session,
+ __LINE__);
#endif
- q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
- q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
- q_msg.quota = n->bandwidth_out;
- q_msg.peer = (*peer);
- GST_clients_broadcast (&q_msg.header, GNUNET_NO);
+ connect_notify_cb (callback_cls, &n->id, ats, ats_count);
+ send_outbound_quota (peer, n->bandwidth_out);
}
GST_neighbours_handle_ack (const struct GNUNET_MessageHeader *message,
const struct GNUNET_PeerIdentity *peer,
const struct GNUNET_HELLO_Address *address,
- struct Session *session,
+ struct Session *session,
const struct GNUNET_ATS_Information *ats,
uint32_t ats_count)
{
struct NeighbourMapEntry *n;
- struct QuotaSetMessage q_msg;
#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received ACK message from peer `%s'\n",
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received ACK message from peer `%s'\n",
GNUNET_i2s (peer));
#endif
n = lookup_neighbour (peer);
if (NULL == n)
{
- send_disconnect (peer, address,
- session);
GNUNET_break (0);
return;
}
if (S_CONNECTED == n->state)
return;
- if (!is_connecting(n))
+ if (!is_connecting (n))
{
- GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# unexpected ACK messages"), 1,
+ GNUNET_STATISTICS_update (GST_stats,
+ gettext_noop ("# unexpected ACK messages"), 1,
GNUNET_NO);
return;
}
+ change_state (n, S_CONNECTED);
if (NULL != session)
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"transport-ats",
session, address->transport_name, GNUNET_i2s (peer));
GNUNET_ATS_address_update (GST_ats, address, session, ats, ats_count);
GNUNET_assert (n->address != NULL);
- change_state (n, S_CONNECTED);
- GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_YES);
- GST_neighbours_set_incoming_quota (&n->id, n->bandwidth_in);
+ if ((n->address_state == FRESH) && (0 == GNUNET_HELLO_address_cmp(address, n->address)))
+ {
+ GST_validation_set_address_use (n->address, n->session, GNUNET_YES, __LINE__);
+ GNUNET_ATS_address_in_use (GST_ats, n->address, n->session, GNUNET_YES);
+ n->address_state = USED;
+ }
+
- if (n->keepalive_task == GNUNET_SCHEDULER_NO_TASK)
- n->keepalive_task = GNUNET_SCHEDULER_add_now (&neighbour_keepalive_task, n);
- GST_validation_set_address_use (&n->id,
- n->address,
- n->session,
- GNUNET_YES);
neighbours_connected++;
GNUNET_STATISTICS_update (GST_stats, gettext_noop ("# peers connected"), 1,
- GNUNET_NO);
-
+ GNUNET_NO);
+
+ GST_neighbours_set_incoming_quota (&n->id, n->bandwidth_in);
+ if (n->keepalive_task == GNUNET_SCHEDULER_NO_TASK)
+ n->keepalive_task = GNUNET_SCHEDULER_add_now (&neighbour_keepalive_task, n);
#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Notify about connect of `%4s' using address '%s' session %X LINE %u\n",
- GNUNET_i2s (&n->id),
- GST_plugins_a2s (n->address), n->session,
- __LINE__);
+ "Notify about connect of `%4s' using address '%s' session %X LINE %u\n",
+ GNUNET_i2s (&n->id), GST_plugins_a2s (n->address), n->session,
+ __LINE__);
#endif
- connect_notify_cb (callback_cls, &n->id, ats, ats_count);
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Sending outbound quota of %u Bps for peer `%s' to all clients\n",
- ntohl (n->bandwidth_out.value__), GNUNET_i2s (peer));
-#endif
- q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
- q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
- q_msg.quota = n->bandwidth_out;
- q_msg.peer = (*peer);
- GST_clients_broadcast (&q_msg.header, GNUNET_NO);
+ connect_notify_cb (callback_cls, &n->id, ats, ats_count);
+ send_outbound_quota (peer, n->bandwidth_out);
}
struct BlackListCheckContext
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"transport-ats",
"Giving ATS session %p of address `%s' for peer %s\n",
- bcc->session,
- GST_plugins_a2s (bcc->address),
+ bcc->session, GST_plugins_a2s (bcc->address),
GNUNET_i2s (peer));
- GNUNET_ATS_address_update (GST_ats, bcc->address,
- bcc->session, bcc->ats, bcc->ats_count);
+ /* Tell ATS about the session, so ATS can suggest it if it likes it. */
+
+ GNUNET_ATS_address_update (GST_ats, bcc->address, bcc->session, bcc->ats,
+ bcc->ats_count);
n->connect_ts = bcc->ts;
}
+ GNUNET_HELLO_address_free (bcc->address);
GNUNET_free (bcc);
if (n->state != S_CONNECT_RECV)
change_state (n, S_CONNECT_RECV);
+
/* Ask ATS for an address to connect via that address */
if (n->ats_suggest != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (n->ats_suggest);
uint32_t ats_count)
{
const struct SessionConnectMessage *scm;
- struct NeighbourMapEntry *n;
struct BlackListCheckContext *bcc = NULL;
+ struct NeighbourMapEntry *n;
#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
scm = (const struct SessionConnectMessage *) message;
GNUNET_break_op (ntohl (scm->reserved) == 0);
+ GNUNET_ATS_address_update (GST_ats, address, session, ats, ats_count);
+
n = lookup_neighbour (peer);
- if ( (n != NULL) &&
- (S_CONNECTED == n->state) )
+ if ((n != NULL) && ((S_CONNECTED == n->state) || (S_FAST_RECONNECT == n->state)))
{
- /* connected peer switches addresses */
- GNUNET_ATS_address_update (GST_ats, address, session, ats, ats_count);
+ /* connected peer switches addresses or is trying to do a fast reconnect*/
return;
}
+
/* we are not connected to this peer */
/* do blacklist check */
bcc =
bcc->ats = (struct GNUNET_ATS_Information *) &bcc[1];
memcpy (bcc->ats, ats, sizeof (struct GNUNET_ATS_Information) * ats_count);
bcc->ats[ats_count].type = htonl (GNUNET_ATS_QUALITY_NET_DELAY);
- bcc->ats[ats_count].value = htonl ((uint32_t) GST_neighbour_get_latency (peer).rel_value);
- GST_blacklist_test_allowed (peer, address->transport_name, handle_connect_blacklist_cont,
- bcc);
+ bcc->ats[ats_count].value =
+ htonl ((uint32_t) GST_neighbour_get_latency (peer).rel_value);
+ GST_blacklist_test_allowed (peer, address->transport_name,
+ &handle_connect_blacklist_cont, bcc);
}
projects / oweals / gnunet.git / blobdiff