/*
This file is part of GNUnet.
- Copyright (C) 2010-2015 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010-2015 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
#include "platform.h"
#include "gnunet_ats_service.h"
#include "gnunet-service-transport_ats.h"
-#include "gnunet-service-transport_blacklist.h"
-#include "gnunet-service-transport_clients.h"
#include "gnunet-service-transport_neighbours.h"
#include "gnunet-service-transport_manipulation.h"
#include "gnunet-service-transport_plugins.h"
};
-/**
- * Context for blacklist checks and the #try_connect_bl_check_cont()
- * function. Stores information about ongoing blacklist checks.
- */
-struct BlackListCheckContext
-{
-
- /**
- * We keep blacklist checks in a DLL.
- */
- struct BlackListCheckContext *next;
-
- /**
- * We keep blacklist checks in a DLL.
- */
- struct BlackListCheckContext *prev;
-
- /**
- * Address that is being checked.
- */
- struct NeighbourAddress na;
-
- /**
- * Handle to the ongoing blacklist check.
- */
- struct GST_BlacklistCheck *bc;
-};
-
-
/**
* Hash map from peer identities to the respective `struct NeighbourMapEntry`.
*/
static struct GNUNET_CONTAINER_MultiPeerMap *neighbours;
-/**
- * We keep blacklist checks in a DLL so that we can find
- * the 'sessions' in their 'struct NeighbourAddress' if
- * a session goes down.
- */
-static struct BlackListCheckContext *bc_head;
-
-/**
- * We keep blacklist checks in a DLL.
- */
-static struct BlackListCheckContext *bc_tail;
-
/**
* List of pending blacklist checks: head
*/
}
+/**
+ * Send information about a new outbound quota to our clients.
+ * Note that the outbound quota is enforced client-side (i.e.
+ * in libgnunettransport).
+ *
+ * @param n affected peer
+ */
+static void
+send_outbound_quota_to_clients (struct NeighbourMapEntry *n)
+{
+ struct QuotaSetMessage q_msg;
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_min;
+
+ if (! GNUNET_TRANSPORT_is_connected (n->state))
+ return;
+#if IGNORE_INBOUND_QUOTA
+ bandwidth_min = n->primary_address.bandwidth_out;
+#else
+ bandwidth_min = GNUNET_BANDWIDTH_value_min (n->primary_address.bandwidth_out,
+ n->neighbour_receive_quota);
+#endif
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Sending outbound quota of %u Bps for peer `%s' to all clients\n",
+ ntohl (bandwidth_min.value__),
+ GNUNET_i2s (&n->id));
+ q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
+ q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
+ q_msg.quota = bandwidth_min;
+ q_msg.peer = n->id;
+ GST_clients_broadcast (&q_msg.header,
+ GNUNET_NO);
+}
+
+
/**
* Notify our clients that another peer connected to us.
*
static void
neighbours_disconnect_notification (struct NeighbourMapEntry *n)
{
- struct DisconnectInfoMessage disconnect_msg;
-
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Peer `%s' disconnected\n",
GNUNET_i2s (&n->id));
GST_manipulation_peer_disconnect (&n->id);
- disconnect_msg.header.size = htons (sizeof(struct DisconnectInfoMessage));
- disconnect_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT);
- disconnect_msg.reserved = htonl (0);
- disconnect_msg.peer = n->id;
- GST_clients_broadcast (&disconnect_msg.header,
- GNUNET_NO);
+ GST_clients_broadcast_disconnect (&n->id);
}
}
-/**
- * Send information about a new outbound quota to our clients.
- * Note that the outbound quota is enforced client-side (i.e.
- * in libgnunettransport).
- *
- * @param n affected peer
- */
-static void
-send_outbound_quota_to_clients (struct NeighbourMapEntry *n)
-{
- struct QuotaSetMessage q_msg;
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_min;
-
- if (! GNUNET_TRANSPORT_is_connected (n->state))
- return;
-#if IGNORE_INBOUND_QUOTA
- bandwidth_min = n->primary_address.bandwidth_out;
-#else
- bandwidth_min = GNUNET_BANDWIDTH_value_min (n->primary_address.bandwidth_out,
- n->neighbour_receive_quota);
-#endif
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Sending outbound quota of %u Bps for peer `%s' to all clients\n",
- ntohl (bandwidth_min.value__),
- GNUNET_i2s (&n->id));
- q_msg.header.size = htons (sizeof (struct QuotaSetMessage));
- q_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA);
- q_msg.quota = bandwidth_min;
- q_msg.peer = n->id;
- GST_clients_broadcast (&q_msg.header, GNUNET_NO);
-}
-
-
/**
* We don't need a given neighbour address any more.
* Release its resources and give appropriate notifications
* clean up after disconnect).
*
* @param cls the `struct NeighbourMapEntry` for which we are running
- * @param tc scheduler context (unused)
*/
static void
-master_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc);
+master_task (void *cls);
/**
{
/* new timeout is earlier, reschedule master task */
GNUNET_SCHEDULER_cancel (n->task);
- n->task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_absolute_get_remaining (timeout),
- &master_task,
- n);
+ n->task = GNUNET_SCHEDULER_add_at (timeout,
+ &master_task,
+ n);
}
n->timeout = timeout;
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
sqm.header.size = htons (sizeof (struct GNUNET_ATS_SessionQuotaMessage));
sqm.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_QUOTA);
sqm.quota = quota.value__;
- (void) send_with_session (n,
- &sqm,
- sizeof (sqm),
- UINT32_MAX - 1,
- GNUNET_TIME_UNIT_FOREVER_REL,
- GNUNET_NO,
- NULL, NULL);
+ if (NULL != n->primary_address.session)
+ (void) send_with_session (n,
+ &sqm,
+ sizeof (sqm),
+ UINT32_MAX - 1,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ GNUNET_NO,
+ NULL, NULL);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Disconnecting peer `%4s' due to SET_QUOTA\n",
+ "Disconnecting peer `%s' due to SET_QUOTA\n",
GNUNET_i2s (&n->id));
if (GNUNET_YES == test_connected (n))
GNUNET_STATISTICS_update (GST_stats,
if (bytes_in_send_queue < mq->message_buf_size)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Bytes_in_send_queue `%u', Message_size %u, result: %s, payload %u, on wire %u\n",
+ "Bytes_in_send_queue `%llu', Message_size %u, result: %s, payload %u, on wire %u\n",
bytes_in_send_queue,
- mq->message_buf_size,
+ (unsigned int) mq->message_buf_size,
(GNUNET_OK == success) ? "OK" : "FAIL",
- size_payload,
- physical);
+ (unsigned int) size_payload,
+ (unsigned int) physical);
GNUNET_break (0);
}
"Sending message to `%s' of type %u with %u bytes was a %s\n",
GNUNET_i2s (receiver),
ntohs (((struct GNUNET_MessageHeader *) mq->message_buf)->type),
- mq->message_buf_size,
+ (unsigned int) mq->message_buf_size,
(success == GNUNET_OK) ? "success" : "FAILURE");
if (NULL != mq->cont)
mq->cont (mq->cont_cls,
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Giving message with %u bytes to plugin session %p\n",
- mq->message_buf_size,
+ (unsigned int) mq->message_buf_size,
n->primary_address.session);
(void) send_with_session (n,
mq->message_buf,
}
if (NULL == (n = lookup_neighbour (sender)))
{
- GST_neighbours_try_connect (sender);
- if (NULL == (n = lookup_neighbour (sender)))
- {
- GNUNET_STATISTICS_update (GST_stats,
- gettext_noop
- ("# messages discarded due to lack of neighbour record"),
- 1, GNUNET_NO);
- *do_forward = GNUNET_NO;
- return GNUNET_TIME_UNIT_ZERO;
- }
+ GNUNET_STATISTICS_update (GST_stats,
+ gettext_noop ("# messages discarded due to lack of neighbour record"),
+ 1,
+ GNUNET_NO);
+ *do_forward = GNUNET_NO;
+ return GNUNET_TIME_UNIT_ZERO;
}
if (! test_connected (n))
{
mq = GNUNET_malloc (sizeof (struct MessageQueue) + msg_size);
mq->cont = cont;
mq->cont_cls = cont_cls;
- memcpy (&mq[1], msg, msg_size);
+ GNUNET_memcpy (&mq[1], msg, msg_size);
mq->message_buf = (const char *) &mq[1];
mq->message_buf_size = msg_size;
mq->timeout = GNUNET_TIME_relative_to_absolute (timeout);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Enqueueing %u bytes to send to peer %s\n",
- msg_size,
+ (unsigned int) msg_size,
GNUNET_i2s (target));
GNUNET_CONTAINER_DLL_insert_tail (n->messages_head,
n->messages_tail,
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"New inbound delay for peer `%s' is %llu ms\n",
GNUNET_i2s (&n->id),
- delay.rel_value_us / 1000);
+ (unsigned long long) delay.rel_value_us / 1000LL);
papi->update_inbound_delay (papi->cls,
&n->id,
n->primary_address.session,
{
struct NeighbourMapEntry *n;
+ if (0 ==
+ memcmp (&GST_my_identity,
+ peer,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Cowardly refusing to consider myself my neighbour!\n");
+ return NULL;
+ }
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Creating new neighbour entry for `%s'\n",
GNUNET_i2s (peer));
- GNUNET_assert (0 !=
- memcmp (&GST_my_identity,
- peer,
- sizeof (struct GNUNET_PeerIdentity)));
n = GNUNET_new (struct NeighbourMapEntry);
n->id = *peer;
n->ack_state = ACK_UNDEFINED;
};
-/**
- * Black list check result for try_connect call
- * If connection to the peer is allowed request adddress and
- *
- * @param cls blc_ctx bl context
- * @param peer the peer
- * @param address address associated with the request
- * @param session session associated with the request
- * @param result #GNUNET_OK if the connection is allowed,
- * #GNUNET_NO if not,
- * #GNUNET_SYSERR if operation was aborted
- */
-static void
-try_connect_bl_check_cont (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
- struct GNUNET_ATS_Session *session,
- int result)
-{
- struct BlacklistCheckSwitchContext *blc_ctx = cls;
- struct NeighbourMapEntry *n;
-
- GNUNET_CONTAINER_DLL_remove (pending_bc_head,
- pending_bc_tail,
- blc_ctx);
- GNUNET_free (blc_ctx);
- if (GNUNET_OK != result)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Blacklisting disapproved to connect to peer `%s'\n"),
- GNUNET_i2s (peer));
- return;
- }
-
- /* Setup a new neighbour */
- if (NULL != lookup_neighbour(peer))
- return; /* The neighbor was created in the meantime while waited for BL clients */
-
- n = setup_neighbour (peer);
-
- /* Request address suggestions for this peer */
- set_state_and_timeout (n,
- GNUNET_TRANSPORT_PS_INIT_ATS,
- GNUNET_TIME_relative_to_absolute (ATS_RESPONSE_TIMEOUT));
-}
-
-
-/**
- * Try to create a connection to the given target (eventually).
- *
- * @param target peer to try to connect to
- */
-void
-GST_neighbours_try_connect (const struct GNUNET_PeerIdentity *target)
-{
- struct NeighbourMapEntry *n;
- struct GST_BlacklistCheck *blc;
- struct BlacklistCheckSwitchContext *blc_ctx;
-
- if (NULL == neighbours)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Asked to connect to peer `%s' during shutdown\n",
- GNUNET_i2s (target));
- return; /* during shutdown, do nothing */
- }
- n = lookup_neighbour (target);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Asked to connect to peer `%s' (state: %s)\n",
- GNUNET_i2s (target),
- (NULL != n) ? GNUNET_TRANSPORT_ps2s(n->state) : "NEW PEER");
- if (NULL != n)
- {
- switch (n->state)
- {
- case GNUNET_TRANSPORT_PS_NOT_CONNECTED:
- /* this should not be possible */
- GNUNET_break (0);
- free_neighbour (n);
- break;
- case GNUNET_TRANSPORT_PS_INIT_ATS:
- case GNUNET_TRANSPORT_PS_SYN_SENT:
- case GNUNET_TRANSPORT_PS_SYN_RECV_ATS:
- case GNUNET_TRANSPORT_PS_SYN_RECV_ACK:
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Ignoring request to try to connect to `%s', already trying!\n",
- GNUNET_i2s (target));
- return; /* already trying */
- case GNUNET_TRANSPORT_PS_CONNECTED:
- case GNUNET_TRANSPORT_PS_RECONNECT_ATS:
- case GNUNET_TRANSPORT_PS_RECONNECT_SENT:
- case GNUNET_TRANSPORT_PS_SWITCH_SYN_SENT:
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Ignoring request to try to connect, already connected to `%s'!\n",
- GNUNET_i2s (target));
- return; /* already connected */
- case GNUNET_TRANSPORT_PS_DISCONNECT:
- /* get rid of remains, ready to re-try immediately */
- free_neighbour (n);
- break;
- case GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED:
- /* should not be possible */
- GNUNET_assert (0);
- return;
- default:
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Unhandled state `%s'\n",
- GNUNET_TRANSPORT_ps2s (n->state));
- GNUNET_break (0);
- free_neighbour (n);
- break;
- }
- }
-
- /* Do blacklist check if connecting to this peer is allowed */
- blc_ctx = GNUNET_new (struct BlacklistCheckSwitchContext);
- GNUNET_CONTAINER_DLL_insert (pending_bc_head,
- pending_bc_tail,
- blc_ctx);
-
- if (NULL !=
- (blc = GST_blacklist_test_allowed (target,
- NULL,
- &try_connect_bl_check_cont,
- blc_ctx,
- NULL,
- NULL)))
- {
- blc_ctx->blc = blc;
- }
-}
-
-
/**
* We received a 'SYN' message from the other peer.
* Consider switching to it.
scm = (const struct TransportSynMessage *) message;
GNUNET_break_op (0 == ntohl (scm->reserved));
ts = GNUNET_TIME_absolute_ntoh (scm->timestamp);
+ if (0 ==
+ memcmp (&GST_my_identity,
+ peer,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ /* loopback connection-to-self, ignore */
+ return GNUNET_SYSERR;
+ }
n = lookup_neighbour (peer);
if (NULL == n)
{
/* This is a new neighbour and set to not connected */
n = setup_neighbour (peer);
+ GNUNET_assert (NULL != n);
}
/* Remember this SYN message in neighbour */
/* Get rid of remains and re-try */
free_neighbour (n);
n = setup_neighbour (peer);
+ GNUNET_assert (NULL != n);
/* Remember the SYN time stamp for ACK message */
n->ack_state = ACK_SEND_SYN_ACK;
n->connect_ack_timestamp = ts;
if (NULL == (n = lookup_neighbour (peer)))
{
n = setup_neighbour (peer);
+ if (NULL == n)
+ {
+ /* not sure how this can happen... */
+ GNUNET_break (0);
+ goto cleanup;
+ }
n->state = GNUNET_TRANSPORT_PS_INIT_ATS;
}
* Task transmitting utilization in a regular interval
*
* @param cls the 'struct NeighbourMapEntry' for which we are running
- * @param tc scheduler context (unused)
*/
static void
-utilization_transmission (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+utilization_transmission (void *cls)
{
util_transmission_tk = NULL;
GNUNET_CONTAINER_multipeermap_iterate (neighbours,
* clean up after disconnect).
*
* @param cls the 'struct NeighbourMapEntry' for which we are running
- * @param tc scheduler context (unused)
*/
static void
-master_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+master_task (void *cls)
{
struct NeighbourMapEntry *n = cls;
struct GNUNET_TIME_Relative delay;
struct GNUNET_ATS_Session *session)
{
struct NeighbourMapEntry *n;
- struct BlackListCheckContext *bcc;
- struct BlackListCheckContext *bcc_next;
- /* make sure to cancel all ongoing blacklist checks involving 'session' */
- bcc_next = bc_head;
- while (NULL != (bcc = bcc_next))
- {
- bcc_next = bcc->next;
- if (bcc->na.session == session)
- {
- if (NULL != bcc->bc)
- GST_blacklist_test_cancel (bcc->bc);
- GNUNET_HELLO_address_free (bcc->na.address);
- GNUNET_CONTAINER_DLL_remove (bc_head,
- bc_tail,
- bcc);
- GNUNET_free (bcc);
- }
- }
if (NULL == (n = lookup_neighbour (peer)))
return GNUNET_NO; /* can't affect us */
if (session != n->primary_address.session)
/* The session used to send the SYN terminated:
* this implies a connect error*/
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Failed to send SYN in %s with `%s' %p: session terminated\n",
- "CONNECT_SENT",
+ "Failed to send SYN in CONNECT_SENT with `%s' %p: session terminated\n",
GST_plugins_a2s (n->primary_address.address),
- n->primary_address.session,
- GNUNET_i2s (peer));
+ n->primary_address.session);
/* Destroy the address since it cannot be used */
unset_primary_address (n);
break;
case GNUNET_TRANSPORT_PS_RECONNECT_SENT:
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Failed to send SYN in %s with `%s' %p: session terminated\n",
- "RECONNECT_SENT",
+ "Failed to send SYN in RECONNECT_SENT with `%s' %p: session terminated\n",
GST_plugins_a2s (n->primary_address.address),
- n->primary_address.session,
- GNUNET_i2s (peer));
+ n->primary_address.session);
/* Destroy the address since it cannot be used */
unset_primary_address (n);
set_state_and_timeout (n,
* Task to asynchronously run #free_neighbour().
*
* @param cls the `struct NeighbourMapEntry` to free
- * @param tc unused
*/
static void
-delayed_disconnect (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext* tc)
+delayed_disconnect (void *cls)
{
struct NeighbourMapEntry *n = cls;
{
struct NeighbourMapEntry *n;
const struct GNUNET_ATS_SessionQuotaMessage *sqm;
+ struct GNUNET_BANDWIDTH_Value32NBO last;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received QUOTA message from peer `%s'\n",
/* gone already */
return;
}
- n->neighbour_receive_quota
- = GNUNET_BANDWIDTH_value_max (GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
- GNUNET_BANDWIDTH_value_init (ntohl (sqm->quota)));
- send_outbound_quota_to_clients (n);
+ last = GNUNET_BANDWIDTH_value_max (GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
+ GNUNET_BANDWIDTH_value_init (ntohl (sqm->quota)));
+ if (last.value__ != n->neighbour_receive_quota.value__)
+ {
+ n->neighbour_receive_quota = last;
+ send_outbound_quota_to_clients (n);
+ }
}
void
GST_neighbours_stop ()
{
- struct BlacklistCheckSwitchContext *cur;
- struct BlacklistCheckSwitchContext *next;
-
if (NULL == neighbours)
return;
if (NULL != util_transmission_tk)
NULL);
GNUNET_CONTAINER_multipeermap_destroy (neighbours);
neighbours = NULL;
- next = pending_bc_head;
- for (cur = next; NULL != cur; cur = next)
- {
- next = cur->next;
- GNUNET_CONTAINER_DLL_remove (pending_bc_head,
- pending_bc_tail,
- cur);
-
- if (NULL != cur->blc)
- {
- GST_blacklist_test_cancel (cur->blc);
- cur->blc = NULL;
- }
- GNUNET_free (cur);
- }
}
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