/**
* Current transmit request handle.
*/
- struct GNUNET_CONNECTION_TransmitHandle *th;
+ struct GNUNET_SERVER_TransmitHandle *th;
/**
* Length of the list of messages pending for this client.
};
+/**
+ * Client monitoring changes of active addresses of our neighbours.
+ */
+struct MonitoringClient
+{
+ /**
+ * This is a doubly-linked list.
+ */
+ struct MonitoringClient *next;
+
+ /**
+ * This is a doubly-linked list.
+ */
+ struct MonitoringClient *prev;
+
+ /**
+ * Handle to the client.
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * Peer identity to monitor the addresses of.
+ * Zero to monitor all neighrours.
+ */
+ struct GNUNET_PeerIdentity peer;
+
+};
+
+
/**
* Head of linked list of all clients to this service.
*/
*/
static struct TransportClient *clients_tail;
+/**
+ * Head of linked list of monitoring clients.
+ */
+static struct MonitoringClient *monitoring_clients_head;
+
+/**
+ * Tail of linked list of monitoring clients.
+ */
+static struct MonitoringClient *monitoring_clients_tail;
+
+/**
+ * Notification context, to send updates on changes to active addresses
+ * of our neighbours.
+ */
+struct GNUNET_SERVER_NotificationContext *nc = NULL;
+
+
/**
* Find the internal handle associated with the given client handle
*
GNUNET_assert (lookup_client (client) == NULL);
tc = GNUNET_malloc (sizeof (struct TransportClient));
tc->client = client;
-
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %X connected\n", tc);
-#endif
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected\n", tc);
return tc;
}
+/**
+ * Find the handle to the monitoring client associated with the given
+ * client handle
+ *
+ * @param client server's client handle to look up
+ * @return handle to the monitoring client
+ */
+static struct MonitoringClient *
+lookup_monitoring_client (struct GNUNET_SERVER_Client *client)
+{
+ struct MonitoringClient *mc;
+
+ mc = monitoring_clients_head;
+ while (mc != NULL)
+ {
+ if (mc->client == client)
+ return mc;
+ mc = mc->next;
+ }
+ return NULL;
+}
+
+
+/**
+ * Setup a new monitoring client using the given server client handle and
+ * the peer identity.
+ *
+ * @param client server's client handle to create our internal handle for
+ * @param peer identity of the peer to monitor the addresses of,
+ * zero to monitor all neighrours.
+ * @return handle to the new monitoring client
+ */
+static struct MonitoringClient *
+setup_monitoring_client (struct GNUNET_SERVER_Client *client,
+ struct GNUNET_PeerIdentity *peer)
+{
+ struct MonitoringClient *mc;
+
+ GNUNET_assert (lookup_monitoring_client (client) == NULL);
+ mc = GNUNET_malloc (sizeof (struct MonitoringClient));
+ mc->client = client;
+ mc->peer = *peer;
+ GNUNET_CONTAINER_DLL_insert (monitoring_clients_head,
+ monitoring_clients_tail,
+ mc);
+ GNUNET_SERVER_notification_context_add (nc, client);
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Client %p started monitoring of the peer `%s'\n",
+ mc, GNUNET_i2s (peer));
+ return mc;
+}
+
+
/**
* Function called to notify a client about the socket being ready to
* queue more data. "buf" will be NULL and "size" zero if the socket
tc->th = NULL;
if (buf == NULL)
{
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Transmission to client failed, closing connection.\n");
-#endif
return 0;
}
cbuf = buf;
msize = ntohs (msg->size);
if (msize + tsize > size)
break;
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Transmitting message of type %u to client %X.\n",
+ "Transmitting message of type %u to client %p.\n",
ntohs (msg->type), tc);
-#endif
GNUNET_CONTAINER_DLL_remove (tc->message_queue_head, tc->message_queue_tail,
q);
tc->message_count--;
struct ClientMessageQueueEntry *q;
uint16_t msize;
+ if (msg == NULL)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
if ((tc->message_count >= MAX_PENDING) && (GNUNET_YES == may_drop))
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
client_disconnect_notification (void *cls, struct GNUNET_SERVER_Client *client)
{
struct TransportClient *tc;
+ struct MonitoringClient *mc;
struct ClientMessageQueueEntry *mqe;
if (client == NULL)
return;
+ mc = lookup_monitoring_client (client);
+ if (mc != NULL)
+ {
+ GNUNET_CONTAINER_DLL_remove (monitoring_clients_head,
+ monitoring_clients_tail,
+ mc);
+ GNUNET_free (mc);
+ }
tc = lookup_client (client);
if (tc == NULL)
return;
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
- "Client %X disconnected, cleaning up.\n", tc);
-#endif
+ "Client %p disconnected, cleaning up.\n", tc);
while (NULL != (mqe = tc->message_queue_head))
{
GNUNET_CONTAINER_DLL_remove (tc->message_queue_head, tc->message_queue_tail,
GNUNET_CONTAINER_DLL_remove (clients_head, clients_tail, tc);
if (tc->th != NULL)
{
- GNUNET_CONNECTION_notify_transmit_ready_cancel (tc->th);
+ GNUNET_SERVER_notify_transmit_ready_cancel (tc->th);
tc->th = NULL;
}
GNUNET_break (0 == tc->message_count);
* @param ats performance data
* @param ats_count number of entries in ats (excluding 0-termination)
* @param address the address
+ * @param bandwidth_in inbound bandwidth in NBO
+ * @param bandwidth_out outbound bandwidth in NBO
*/
static void
notify_client_about_neighbour (void *cls,
const struct GNUNET_PeerIdentity *peer,
const struct GNUNET_ATS_Information *ats,
uint32_t ats_count,
- const struct GNUNET_HELLO_Address *address)
+ const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out)
{
struct TransportClient *tc = cls;
struct ConnectInfoMessage *cim;
size_t size =
sizeof (struct ConnectInfoMessage) +
ats_count * sizeof (struct GNUNET_ATS_Information);
- char buf[size];
+ char buf[size] GNUNET_ALIGN;
GNUNET_assert (size < GNUNET_SERVER_MAX_MESSAGE_SIZE);
cim = (struct ConnectInfoMessage *) buf;
cim->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT);
cim->ats_count = htonl (ats_count);
cim->id = *peer;
+ cim->quota_in = bandwidth_in;
+ cim->quota_out = bandwidth_out;
ap = (struct GNUNET_ATS_Information *) &cim[1];
memcpy (ap, ats, ats_count * sizeof (struct GNUNET_ATS_Information));
unicast (tc, &cim->header, GNUNET_NO);
tc = lookup_client (client);
-#if DEBUG_TRANSPORT
- if (tc != NULL)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
- "Client %X sent START\n", tc);
- else
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
- "Client %X sent START\n", tc);
-#endif
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
+ "Client %p sent START\n", tc);
if (tc != NULL)
{
/* got 'start' twice from the same client, not allowed */
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
- "TransportClient %X ServerClient %X sent multiple START messages\n",
+ "TransportClient %p ServerClient %p sent multiple START messages\n",
tc, tc->client);
-#endif
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- GNUNET_STATISTICS_update (GST_stats,
- gettext_noop
- ("# bytes payload received for other peers"), msize,
- GNUNET_NO);
-#if DEBUG_TRANSPORT
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received `%s' request from client with target `%4s' and first message of type %u and total size %u\n",
"SEND", GNUNET_i2s (&obm->peer), ntohs (obmm->type), msize);
-#endif
if (GNUNET_NO == GST_neighbours_test_connected (&obm->peer))
{
/* not connected, not allowed to send; can happen due to asynchronous operations */
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Could not send message to peer `%s': not connected\n",
GNUNET_i2s (&obm->peer));
-#endif
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
("# bytes payload dropped (other peer was not connected)"),
gettext_noop
("# REQUEST CONNECT messages received"), 1,
GNUNET_NO);
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received a request connect message for peer `%s'\n",
GNUNET_i2s (&trcm->peer));
-#endif
(void) GST_blacklist_test_allowed (&trcm->peer, NULL, &try_connect_if_allowed,
NULL);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
rtimeout = GNUNET_TIME_relative_ntoh (alum->timeout);
numeric = ntohs (alum->numeric_only);
tc = GNUNET_SERVER_transmit_context_create (client);
- papi = GST_plugins_find (plugin_name);
+ papi = GST_plugins_printer_find (plugin_name);
if (NULL == papi)
{
GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
/**
- * Output the active address of connected neighbours to the given client.
+ * Compose AddressIterateResponseMessage using the given peer and address.
*
- * @param cls the 'struct GNUNET_SERVER_TransmitContext' for transmission to the client
- * @param peer identity of the neighbour
- * @param ats performance data
- * @param ats_count number of entries in ats (excluding 0-termination)
- * @param address the address
+ * @param peer identity of the peer
+ * @param address the address, NULL on disconnect
+ * @return composed message
*/
-static void
-output_address (void *cls, const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_ATS_Information *ats, uint32_t ats_count,
- const struct GNUNET_HELLO_Address *address)
+static struct AddressIterateResponseMessage *
+compose_address_iterate_response_message (const struct GNUNET_PeerIdentity
+ *peer,
+ const struct GNUNET_HELLO_Address
+ *address)
{
- struct GNUNET_SERVER_TransmitContext *tc = cls;
struct AddressIterateResponseMessage *msg;
size_t size;
size_t tlen;
size_t alen;
char *addr;
- tlen = strlen (address->transport_name) + 1;
- alen = address->address_length;
+ GNUNET_assert (NULL != peer);
+ if (NULL != address)
+ {
+ tlen = strlen (address->transport_name) + 1;
+ alen = address->address_length;
+ }
+ else
+ tlen = alen = 0;
size = (sizeof (struct AddressIterateResponseMessage) + alen + tlen);
+ msg = GNUNET_malloc (size);
+ msg->header.size = htons (size);
+ msg->header.type =
+ htons (GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_ITERATE_RESPONSE);
+ msg->reserved = htonl (0);
+ msg->peer = *peer;
+ msg->addrlen = htonl (alen);
+ msg->pluginlen = htonl (tlen);
+ if (NULL != address)
{
- char buf[size];
-
- msg = (struct AddressIterateResponseMessage *) buf;
- msg->reserved = htonl (0);
- msg->peer = *peer;
- msg->addrlen = htonl (alen);
- msg->pluginlen = htonl (tlen);
addr = (char *) &msg[1];
memcpy (addr, address->address, alen);
memcpy (&addr[alen], address->transport_name, tlen);
- GNUNET_SERVER_transmit_context_append_data (tc,
- &buf[sizeof
- (struct
- GNUNET_MessageHeader)],
- size -
- sizeof (struct
- GNUNET_MessageHeader),
- GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_ITERATE_RESPONSE);
}
+ return msg;
+}
+
+
+/**
+ * Output the active address of connected neighbours to the given client.
+ *
+ * @param cls the 'struct GNUNET_SERVER_TransmitContext' for transmission to the client
+ * @param peer identity of the neighbour
+ * @param ats performance data
+ * @param ats_count number of entries in ats (excluding 0-termination)
+ * @param address the address
+ * @param bandwidth_in inbound quota in NBO
+ * @param bandwidth_out outbound quota in NBO
+ */
+static void
+output_address (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_ATS_Information *ats, uint32_t ats_count,
+ const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out)
+{
+ struct GNUNET_SERVER_TransmitContext *tc = cls;
+ struct AddressIterateResponseMessage *msg;
+
+ msg = compose_address_iterate_response_message (peer, address);
+ GNUNET_SERVER_transmit_context_append_message (tc, &msg->header);
+ GNUNET_free (msg);
}
return;
}
msg = (struct AddressIterateMessage *) message;
- if (GNUNET_YES != ntohl (msg->one_shot))
+ if ( (GNUNET_YES != ntohl (msg->one_shot)) &&
+ (NULL != lookup_monitoring_client (client)) )
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Address monitoring not implemented\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
+ "ServerClient %p tried to start monitoring twice\n",
+ client);
+ GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
/* just return one neighbour */
address = GST_neighbour_get_current_address (&msg->peer);
if (address != NULL)
- output_address (tc, &msg->peer, NULL, 0, address);
+ output_address (tc, &msg->peer, NULL, 0, address,
+ GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
+ GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT);
}
- GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
- GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_ITERATE_RESPONSE);
+ if (GNUNET_YES != ntohl (msg->one_shot))
+ setup_monitoring_client (client, &msg->peer);
+ else
+ GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
+ GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_ITERATE_RESPONSE);
GNUNET_SERVER_transmit_context_run (tc, GNUNET_TIME_UNIT_FOREVER_REL);
}
sizeof (struct BlacklistMessage)},
{NULL, NULL, 0, 0}
};
+ nc = GNUNET_SERVER_notification_context_create (server, 0);
GNUNET_SERVER_add_handlers (server, handlers);
GNUNET_SERVER_disconnect_notify (server, &client_disconnect_notification,
NULL);
void
GST_clients_stop ()
{
- /* nothing to do */
+ if (NULL != nc)
+ {
+ GNUNET_SERVER_notification_context_destroy (nc);
+ nc = NULL;
+ }
}
}
+/**
+ * Broadcast the new active address to all clients monitoring the peer.
+ *
+ * @param peer peer this update is about (never NULL)
+ * @param address address, NULL on disconnect
+ */
+void
+GST_clients_broadcast_address_notification (const struct GNUNET_PeerIdentity
+ *peer,
+ const struct GNUNET_HELLO_Address
+ *address)
+{
+ struct AddressIterateResponseMessage *msg;
+ struct MonitoringClient *mc;
+ static struct GNUNET_PeerIdentity all_zeros;
+
+ msg = compose_address_iterate_response_message (peer, address);
+ mc = monitoring_clients_head;
+ while (mc != NULL)
+ {
+ if ((0 == memcmp (&mc->peer, &all_zeros,
+ sizeof (struct GNUNET_PeerIdentity))) ||
+ (0 == memcmp (&mc->peer, peer,
+ sizeof (struct GNUNET_PeerIdentity))))
+ {
+ GNUNET_SERVER_notification_context_unicast (nc, mc->client,
+ &msg->header, GNUNET_NO);
+ }
+
+ mc = mc->next;
+ }
+ GNUNET_free (msg);
+}
+
+
/* end of file gnunet-service-transport_clients.c */
projects / oweals / gnunet.git / blobdiff