/*
This file is part of GNUnet.
- (C) 2010,2011 Christian Grothoff (and other contributing authors)
+ (C) 2010-2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
#include "gnunet-service-transport_neighbours.h"
#include "gnunet-service-transport_plugins.h"
#include "gnunet-service-transport_validation.h"
+#include "gnunet-service-transport_manipulation.h"
#include "gnunet-service-transport.h"
#include "transport.h"
+
/**
* How many messages can we have pending for a given client process
* before we start to drop incoming messages? We typically should
/**
* Current transmit request handle.
*/
- struct GNUNET_CONNECTION_TransmitHandle *th;
+ struct GNUNET_SERVER_TransmitHandle *th;
/**
* Length of the list of messages pending for this client.
int send_payload;
};
+/**
+ * Context for address to string operations
+ */
+struct AddressToStringContext
+{
+ /**
+ * This is a doubly-linked list.
+ */
+ struct AddressToStringContext *next;
+
+ /**
+ * This is a doubly-linked list.
+ */
+ struct AddressToStringContext *prev;
+
+ /**
+ * Transmission context
+ */
+ struct GNUNET_SERVER_TransmitContext* tc;
+};
/**
* Client monitoring changes of active addresses of our neighbours.
*/
static struct TransportClient *clients_tail;
+/**
+ * Head of linked list of all pending address iterations
+ */
+struct AddressToStringContext *a2s_head;
+
+/**
+ * Tail of linked list of all pending address iterations
+ */
+struct AddressToStringContext *a2s_tail;
+
/**
* Head of linked list of monitoring clients.
*/
* Notification context, to send updates on changes to active addresses
* of our neighbours.
*/
-struct GNUNET_SERVER_NotificationContext *nc = NULL;
+static struct GNUNET_SERVER_NotificationContext *nc;
/**
{
struct TransportClient *tc;
- tc = clients_head;
- while (tc != NULL)
- {
+ for (tc = clients_head; NULL != tc; tc = tc->next)
if (tc->client == client)
return tc;
- tc = tc->next;
- }
return NULL;
}
{
struct TransportClient *tc;
- GNUNET_assert (lookup_client (client) == NULL);
- tc = GNUNET_malloc (sizeof (struct TransportClient));
+ GNUNET_assert (NULL == lookup_client (client));
+ tc = GNUNET_new (struct TransportClient);
tc->client = client;
-
-#if DEBUG_TRANSPORT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p connected\n", tc);
-#endif
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Client %p connected\n",
+ tc);
return tc;
}
{
struct MonitoringClient *mc;
- mc = monitoring_clients_head;
- while (mc != NULL)
- {
+ for (mc = monitoring_clients_head; NULL != mc; mc = mc->next)
if (mc->client == client)
return mc;
- mc = mc->next;
- }
return NULL;
}
struct GNUNET_PeerIdentity *peer)
{
struct MonitoringClient *mc;
+ static struct GNUNET_PeerIdentity all_zeros;
GNUNET_assert (lookup_monitoring_client (client) == NULL);
- mc = GNUNET_malloc (sizeof (struct MonitoringClient));
+ mc = GNUNET_new (struct MonitoringClient);
mc->client = client;
mc->peer = *peer;
GNUNET_CONTAINER_DLL_insert (monitoring_clients_head,
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));
+ if (0 != memcmp (peer, &all_zeros, sizeof (struct GNUNET_PeerIdentity)))
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Client %p started monitoring of the peer `%s'\n",
+ mc, GNUNET_i2s (peer));
+ else
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Client %p started monitoring all peers\n", mc);
return mc;
}
* was closed for writing in the meantime.
*
* @param cls closure
- * @param size number of bytes available in buf
+ * @param size number of bytes available in @a buf
* @param buf where the callee should write the message
- * @return number of bytes written to buf
+ * @return number of bytes written to @a buf
*/
static size_t
transmit_to_client_callback (void *cls, size_t size, void *buf)
size_t tsize;
tc->th = NULL;
- if (buf == NULL)
+ if (NULL == buf)
{
-#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 %p.\n",
ntohs (msg->type), tc);
-#endif
- GNUNET_CONTAINER_DLL_remove (tc->message_queue_head, tc->message_queue_tail,
+ GNUNET_CONTAINER_DLL_remove (tc->message_queue_head,
+ tc->message_queue_tail,
q);
tc->message_count--;
memcpy (&cbuf[tsize], msg, msize);
GNUNET_SERVER_notify_transmit_ready (tc->client, msize,
GNUNET_TIME_UNIT_FOREVER_REL,
&transmit_to_client_callback, tc);
- GNUNET_assert (tc->th != NULL);
+ GNUNET_assert (NULL != tc->th);
}
return tsize;
}
*
* @param tc target of the message
* @param msg message to transmit
- * @param may_drop GNUNET_YES if the message can be dropped
+ * @param may_drop #GNUNET_YES if the message can be dropped
*/
static void
-unicast (struct TransportClient *tc, const struct GNUNET_MessageHeader *msg,
+unicast (struct TransportClient *tc,
+ const struct GNUNET_MessageHeader *msg,
int may_drop)
{
struct ClientMessageQueueEntry *q;
uint16_t msize;
+ if (NULL == msg)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
if ((tc->message_count >= MAX_PENDING) && (GNUNET_YES == may_drop))
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _
- ("Dropping message of type %u and size %u, have %u/%u messages pending\n"),
- ntohs (msg->type), ntohs (msg->size), tc->message_count,
+ _("Dropping message of type %u and size %u, have %u/%u messages pending\n"),
+ ntohs (msg->type),
+ ntohs (msg->size),
+ tc->message_count,
MAX_PENDING);
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
GNUNET_CONTAINER_DLL_insert_tail (tc->message_queue_head,
tc->message_queue_tail, q);
tc->message_count++;
- if (tc->th != NULL)
+ if (NULL != tc->th)
return;
tc->th =
GNUNET_SERVER_notify_transmit_ready (tc->client, msize,
GNUNET_TIME_UNIT_FOREVER_REL,
&transmit_to_client_callback, tc);
- GNUNET_assert (tc->th != NULL);
+ GNUNET_assert (NULL != tc->th);
}
tc = lookup_client (client);
if (tc == NULL)
return;
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"Client %p disconnected, cleaning up.\n", tc);
-#endif
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);
* Function called for each of our connected neighbours. Notify the
* client about the existing neighbour.
*
- * @param cls the 'struct TransportClient' to notify
+ * @param cls the `struct TransportClient *` to notify
* @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 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;
- struct GNUNET_ATS_Information *ap;
- size_t size =
- sizeof (struct ConnectInfoMessage) +
- ats_count * sizeof (struct GNUNET_ATS_Information);
- char buf[size];
+ size_t size = sizeof (struct ConnectInfoMessage);
+ char buf[size] GNUNET_ALIGN;
GNUNET_assert (size < GNUNET_SERVER_MAX_MESSAGE_SIZE);
cim = (struct ConnectInfoMessage *) buf;
cim->header.size = htons (size);
cim->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT);
- cim->ats_count = htonl (ats_count);
cim->id = *peer;
- ap = (struct GNUNET_ATS_Information *) &cim[1];
- memcpy (ap, ats, ats_count * sizeof (struct GNUNET_ATS_Information));
+ cim->quota_in = bandwidth_in;
+ cim->quota_out = bandwidth_out;
unicast (tc, &cim->header, GNUNET_NO);
}
tc = lookup_client (client);
-#if DEBUG_TRANSPORT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"Client %p sent START\n", tc);
-#endif
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 %p ServerClient %p sent multiple START messages\n",
tc, tc->client);
-#endif
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
* OK to send the next message.
*
* @param cls closure
- * @param success GNUNET_OK on success, GNUNET_NO on failure, GNUNET_SYSERR if we're not connected
+ * @param success #GNUNET_OK on success, #GNUNET_NO on failure, #GNUNET_SYSERR if we're not connected
+ * @param bytes_payload bytes payload sent
+ * @param bytes_on_wire bytes sent on wire
*/
static void
-handle_send_transmit_continuation (void *cls, int success)
+handle_send_transmit_continuation (void *cls, int success,
+ size_t bytes_payload,
+ size_t bytes_on_wire)
{
struct SendTransmitContinuationContext *stcc = cls;
struct SendOkMessage send_ok_msg;
+ if (GNUNET_OK == success)
+ GST_neighbours_notify_payload_sent (&stcc->target, bytes_payload);
+
send_ok_msg.header.size = htons (sizeof (send_ok_msg));
send_ok_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK);
+ send_ok_msg.bytes_msg = htonl (bytes_payload);
+ send_ok_msg.bytes_physical = htonl (bytes_on_wire);
send_ok_msg.success = htonl (success);
send_ok_msg.latency =
GNUNET_TIME_relative_hton (GNUNET_TIME_UNIT_FOREVER_REL);
* @param message the send message that was sent
*/
static void
-clients_handle_send (void *cls, struct GNUNET_SERVER_Client *client,
+clients_handle_send (void *cls,
+ struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
const struct OutboundMessage *obm;
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
+ "SEND",
+ GNUNET_i2s (&obm->peer),
+ ntohs (obmm->type),
+ msize);
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)"),
stcc->target = obm->peer;
stcc->client = client;
GNUNET_SERVER_client_keep (client);
- GST_neighbours_send (&obm->peer, obmm, msize,
+ GST_manipulation_send (&obm->peer, obmm, msize,
GNUNET_TIME_relative_ntoh (obm->timeout),
&handle_send_transmit_continuation, stcc);
}
*
* @param cls closure (unused, NULL)
* @param peer identity of peer that was tested
- * @param result GNUNET_OK if the connection is allowed,
- * GNUNET_NO if not
+ * @param result #GNUNET_OK if the connection is allowed,
+ * #GNUNET_NO if not
*/
static void
-try_connect_if_allowed (void *cls, const struct GNUNET_PeerIdentity *peer,
+try_connect_if_allowed (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
int result)
{
if (GNUNET_OK != result)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Blacklist refuses connection attempt to peer `%s'\n",
+ GNUNET_i2s (peer));
return; /* not allowed */
+ }
GST_neighbours_try_connect (peer);
}
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,
+
+ if (0 == memcmp (&trcm->peer, &GST_my_identity,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ GNUNET_break_op (0);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Received a request connect message myself `%s'\n",
+ GNUNET_i2s (&trcm->peer));
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received a request connect message for peer `%s'\n",
+ GNUNET_i2s (&trcm->peer));
+
+ (void) GST_blacklist_test_allowed (&trcm->peer, NULL, &try_connect_if_allowed,
NULL);
+ }
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
static void
transmit_address_to_client (void *cls, const char *buf)
{
- struct GNUNET_SERVER_TransmitContext *tc = cls;
-
+ struct AddressToStringContext *actx = cls;
if (NULL == buf)
{
- GNUNET_SERVER_transmit_context_append_data (tc, NULL, 0,
+ GNUNET_SERVER_transmit_context_append_data (actx->tc, NULL, 0,
GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_TO_STRING_REPLY);
- GNUNET_SERVER_transmit_context_run (tc, GNUNET_TIME_UNIT_FOREVER_REL);
+ GNUNET_SERVER_transmit_context_run (actx->tc, GNUNET_TIME_UNIT_FOREVER_REL);
+ GNUNET_CONTAINER_DLL_remove (a2s_head, a2s_tail, actx);
+ GNUNET_free (actx);
return;
}
- GNUNET_SERVER_transmit_context_append_data (tc, buf, strlen (buf) + 1,
+ GNUNET_SERVER_transmit_context_append_data (actx->tc, buf, strlen (buf) + 1,
GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_TO_STRING_REPLY);
}
uint32_t address_len;
uint16_t size;
struct GNUNET_SERVER_TransmitContext *tc;
+ struct AddressToStringContext *actx;
struct GNUNET_TIME_Relative rtimeout;
int32_t numeric;
}
address = (const char *) &alum[1];
plugin_name = (const char *) &address[address_len];
- if (plugin_name[size - sizeof (struct AddressLookupMessage) - address_len - 1]
- != '\0')
+ if ('\0' != plugin_name[size - sizeof (struct AddressLookupMessage) - address_len - 1])
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
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,
GNUNET_SERVER_transmit_context_run (tc, rtimeout);
return;
}
+ actx = GNUNET_new (struct AddressToStringContext);
+ actx->tc = tc;
+ GNUNET_CONTAINER_DLL_insert (a2s_head, a2s_tail, actx);
GNUNET_SERVER_disable_receive_done_warning (client);
- if ((NULL == address) || (0 == address_len))
- {
- GNUNET_break_op (0);
- }
papi->address_pretty_printer (papi->cls, plugin_name, address, address_len,
numeric, rtimeout, &transmit_address_to_client,
- tc);
+ actx);
}
* @return composed message
*/
static struct AddressIterateResponseMessage *
-compose_address_iterate_response_message (const struct GNUNET_PeerIdentity
- *peer,
- const struct GNUNET_HELLO_Address
- *address)
+compose_address_iterate_response_message (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Address *address)
{
struct AddressIterateResponseMessage *msg;
size_t size;
*
* @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)
+ 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;
/* 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, address,
+ GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
+ GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT);
}
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_MESSAGE_TYPE_TRANSPORT_ADDRESS_ITERATE_RESPONSE);
GNUNET_SERVER_transmit_context_run (tc, GNUNET_TIME_UNIT_FOREVER_REL);
}
{&GST_blacklist_handle_reply, NULL,
GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY,
sizeof (struct BlacklistMessage)},
+ {&GST_manipulation_set_metric, NULL,
+ GNUNET_MESSAGE_TYPE_TRANSPORT_TRAFFIC_METRIC, 0},
{NULL, NULL, 0, 0}
};
nc = GNUNET_SERVER_notification_context_create (server, 0);
void
GST_clients_stop ()
{
+ struct AddressToStringContext *cur;
+
+ while (NULL != (cur = a2s_head))
+ {
+ GNUNET_SERVER_transmit_context_destroy (cur->tc, GNUNET_NO);
+ GNUNET_CONTAINER_DLL_remove (a2s_head, a2s_tail, cur);
+ GNUNET_free (cur);
+ }
if (NULL != nc)
{
GNUNET_SERVER_notification_context_destroy (nc);
* Broadcast the given message to all of our clients.
*
* @param msg message to broadcast
- * @param may_drop GNUNET_YES if the message can be dropped / is payload
+ * @param may_drop #GNUNET_YES if the message can be dropped / is payload
*/
void
GST_clients_broadcast (const struct GNUNET_MessageHeader *msg, int may_drop)
{
struct TransportClient *tc;
- for (tc = clients_head; tc != NULL; tc = tc->next)
+ for (tc = clients_head; NULL != tc; tc = tc->next)
{
if ((GNUNET_YES == may_drop) && (GNUNET_YES != tc->send_payload))
continue; /* skip, this client does not care about payload */
*
* @param client target of the message
* @param msg message to transmit
- * @param may_drop GNUNET_YES if the message can be dropped
+ * @param may_drop #GNUNET_YES if the message can be dropped
*/
void
GST_clients_unicast (struct GNUNET_SERVER_Client *client,
* @param address address, NULL on disconnect
*/
void
-GST_clients_broadcast_address_notification (const struct GNUNET_PeerIdentity
- *peer,
- const struct GNUNET_HELLO_Address
- *address)
+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)
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