/*
This file is part of GNUnet.
- (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2009-2013 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
* @author Christian Grothoff
*
* TODO:
- * - adjust testcases to use new 'try connect' style (should be easy, breaks API compatibility!)
- * - adjust core service to use new 'try connect' style (should be MUCH nicer there as well!)
* - test test test
*/
#include "platform.h"
+#include "gnunet_util_lib.h"
#include "gnunet_constants.h"
-#include "gnunet_bandwidth_lib.h"
-#include "gnunet_client_lib.h"
-#include "gnunet_constants.h"
-#include "gnunet_container_lib.h"
#include "gnunet_arm_service.h"
#include "gnunet_hello_lib.h"
#include "gnunet_protocols.h"
-#include "gnunet_server_lib.h"
-#include "gnunet_time_lib.h"
#include "gnunet_transport_service.h"
#include "transport.h"
GNUNET_TRANSPORT_HelloUpdateCallback rec;
/**
- * Closure for rec.
+ * Task for calling the HelloUpdateCallback when we already have a HELLO
+ */
+ GNUNET_SCHEDULER_TaskIdentifier notify_task;
+
+ /**
+ * Closure for @e rec.
*/
void *rec_cls;
};
+/**
+ * Linked list for all try-connect requests
+ */
+struct GNUNET_TRANSPORT_TryConnectHandle
+{
+ /**
+ * For the DLL.
+ */
+ struct GNUNET_TRANSPORT_TryConnectHandle *prev;
+
+ /**
+ * For the DLL.
+ */
+ struct GNUNET_TRANSPORT_TryConnectHandle *next;
+
+ struct GNUNET_PeerIdentity pid;
+
+ struct GNUNET_TRANSPORT_Handle *th;
+
+ struct GNUNET_TRANSPORT_TransmitHandle *tth;
+
+ GNUNET_TRANSPORT_TryConnectCallback cb;
+
+ /**
+ * Closure for @e cb.
+ */
+ void *cb_cls;
+};
+
+
+/**
+ * Linked list for all try-connect requests
+ */
+struct GNUNET_TRANSPORT_OfferHelloHandle
+{
+ /**
+ * For the DLL.
+ */
+ struct GNUNET_TRANSPORT_OfferHelloHandle *prev;
+
+ /**
+ * For the DLL.
+ */
+ struct GNUNET_TRANSPORT_OfferHelloHandle *next;
+
+ struct GNUNET_TRANSPORT_Handle *th;
+
+ struct GNUNET_TRANSPORT_TransmitHandle *tth;
+
+ GNUNET_SCHEDULER_Task cont;
+
+ /**
+ * Closure for @e cont
+ */
+ void *cls;
+
+ struct GNUNET_MessageHeader *msg;
+};
+
/**
* Handle for the transport service (includes all of the
*/
struct GNUNET_TRANSPORT_GetHelloHandle *hwl_tail;
+ /**
+ * Linked list of pending try connect requests head
+ */
+ struct GNUNET_TRANSPORT_TryConnectHandle *tc_head;
+
+ /**
+ * Linked list of pending try connect requests tail
+ */
+ struct GNUNET_TRANSPORT_TryConnectHandle *tc_tail;
+
+ /**
+ * Linked list of pending offer HELLO requests head
+ */
+ struct GNUNET_TRANSPORT_OfferHelloHandle *oh_head;
+
+ /**
+ * Linked list of pending offer HELLO requests tail
+ */
+ struct GNUNET_TRANSPORT_OfferHelloHandle *oh_tail;
+
/**
* My configuration.
*/
* Hash map of the current connected neighbours of this peer.
* Maps peer identities to 'struct Neighbour' entries.
*/
- struct GNUNET_CONTAINER_MultiHashMap *neighbours;
+ struct GNUNET_CONTAINER_MultiPeerMap *neighbours;
/**
* Heap sorting peers with pending messages by the timestamps that
struct GNUNET_TIME_Relative reconnect_delay;
/**
- * Should we check that 'self' matches what the service thinks?
- * (if GNUNET_NO, then 'self' is all zeros!).
+ * Should we check that @e self matches what the service thinks?
+ * (if #GNUNET_NO, then @e self is all zeros!).
*/
int check_self;
+
+ /**
+ * Reconnect in progress
+ */
+ int reconnecting;
};
+
/**
* Schedule the task to send one message, either from the control
* list or the peer message queues to the service.
neighbour_find (struct GNUNET_TRANSPORT_Handle *h,
const struct GNUNET_PeerIdentity *peer)
{
- return GNUNET_CONTAINER_multihashmap_get (h->neighbours, &peer->hashPubKey);
+ return GNUNET_CONTAINER_multipeermap_get (h->neighbours, peer);
}
{
struct Neighbour *n;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Creating entry for neighbour `%4s'.\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating entry for neighbour `%4s'.\n",
GNUNET_i2s (pid));
- n = GNUNET_malloc (sizeof (struct Neighbour));
+ n = GNUNET_new (struct Neighbour);
n->id = *pid;
n->h = h;
n->is_ready = GNUNET_YES;
GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
MAX_BANDWIDTH_CARRY_S);
GNUNET_assert (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (h->neighbours,
- &n->id.hashPubKey, n,
+ GNUNET_CONTAINER_multipeermap_put (h->neighbours,
+ &n->id, n,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
return n;
}
/**
* Iterator over hash map entries, for deleting state of a neighbour.
*
- * @param cls the 'struct GNUNET_TRANSPORT_Handle*'
+ * @param cls the `struct GNUNET_TRANSPORT_Handle *`
* @param key peer identity
* @param value value in the hash map, the neighbour entry to delete
- * @return GNUNET_YES if we should continue to
+ * @return #GNUNET_YES if we should continue to
* iterate,
- * GNUNET_NO if not.
+ * #GNUNET_NO if not.
*/
static int
-neighbour_delete (void *cls, const struct GNUNET_HashCode * key, void *value)
+neighbour_delete (void *cls,
+ const struct GNUNET_PeerIdentity *key, void *value)
{
struct GNUNET_TRANSPORT_Handle *handle = cls;
struct Neighbour *n = value;
GNUNET_assert (NULL == n->th);
GNUNET_assert (NULL == n->hn);
GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (handle->neighbours, key,
+ GNUNET_CONTAINER_multipeermap_remove (handle->neighbours, key,
n));
GNUNET_free (n);
return GNUNET_YES;
/**
* Function we use for handling incoming messages.
*
- * @param cls closure (struct GNUNET_TRANSPORT_Handle *)
+ * @param cls closure, a `struct GNUNET_TRANSPORT_Handle *`
* @param msg message received, NULL on timeout or fatal error
*/
static void
const struct GNUNET_MessageHeader *imm;
const struct SendOkMessage *okm;
const struct QuotaSetMessage *qm;
- const struct GNUNET_ATS_Information *ats;
struct GNUNET_TRANSPORT_GetHelloHandle *hwl;
struct GNUNET_TRANSPORT_GetHelloHandle *next_hwl;
struct Neighbour *n;
struct GNUNET_PeerIdentity me;
uint16_t size;
- uint32_t ats_count;
uint32_t bytes_msg;
uint32_t bytes_physical;
- GNUNET_assert (h->client != NULL);
- if (msg == NULL)
+ GNUNET_assert (NULL != h->client);
+ if (NULL == msg)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Error receiving from transport service, disconnecting temporarily.\n");
break;
}
cim = (const struct ConnectInfoMessage *) msg;
- ats_count = ntohl (cim->ats_count);
if (size !=
- sizeof (struct ConnectInfoMessage) +
- ats_count * sizeof (struct GNUNET_ATS_Information))
+ sizeof (struct ConnectInfoMessage))
{
GNUNET_break (0);
break;
}
- ats = (const struct GNUNET_ATS_Information *) &cim[1];
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message for `%4s'.\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Receiving `%s' message for `%4s'.\n",
"CONNECT", GNUNET_i2s (&cim->id));
n = neighbour_find (h, &cim->id);
- if (n != NULL)
+ if (NULL != n)
{
GNUNET_break (0);
break;
}
n = neighbour_add (h, &cim->id);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message for `%4s' with quota %u\n",
- "CONNECT", GNUNET_i2s (&cim->id), ntohl (cim->quota_out.value__));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Receiving `%s' message for `%4s' with quota %u\n",
+ "CONNECT",
+ GNUNET_i2s (&cim->id),
+ ntohl (cim->quota_out.value__));
GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker, cim->quota_out);
if (h->nc_cb != NULL)
- h->nc_cb (h->cls, &n->id, ats, ats_count);
+ h->nc_cb (h->cls, &n->id);
break;
case GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT:
if (size != sizeof (struct DisconnectInfoMessage))
}
dim = (const struct DisconnectInfoMessage *) msg;
GNUNET_break (ntohl (dim->reserved) == 0);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message for `%4s'.\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Receiving `%s' message for `%4s'.\n",
"DISCONNECT", GNUNET_i2s (&dim->peer));
n = neighbour_find (h, &dim->peer);
- if (n == NULL)
+ if (NULL == n)
{
GNUNET_break (0);
break;
}
- neighbour_delete (h, &dim->peer.hashPubKey, n);
+ neighbour_delete (h, &dim->peer, n);
break;
case GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK:
if (size != sizeof (struct SendOkMessage))
"SEND_OK", ntohl (okm->success) == GNUNET_OK ? "succeeded" : "failed");
n = neighbour_find (h, &okm->peer);
- if (n == NULL)
+ if (NULL == n)
break;
- GNUNET_assert (0 == n->traffic_overhead);
if (bytes_physical >= bytes_msg)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Overhead for %u byte message: %u \n",
bytes_msg, bytes_physical - bytes_msg);
- n->traffic_overhead = bytes_physical - bytes_msg;
+ n->traffic_overhead += bytes_physical - bytes_msg;
}
GNUNET_break (GNUNET_NO == n->is_ready);
n->is_ready = GNUNET_YES;
- if ((n->th != NULL) && (n->hn == NULL))
+ if ((NULL != n->th) && (NULL == n->hn))
{
GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != n->th->timeout_task);
GNUNET_SCHEDULER_cancel (n->th->timeout_task);
}
break;
case GNUNET_MESSAGE_TYPE_TRANSPORT_RECV:
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message.\n", "RECV");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Receiving `%s' message.\n",
+ "RECV");
if (size <
sizeof (struct InboundMessage) + sizeof (struct GNUNET_MessageHeader))
{
break;
}
im = (const struct InboundMessage *) msg;
- ats_count = ntohl (im->ats_count);
- ats = (const struct GNUNET_ATS_Information *) &im[1];
- imm = (const struct GNUNET_MessageHeader *) &ats[ats_count];
- if (ntohs (imm->size) + sizeof (struct InboundMessage) +
- ats_count * sizeof (struct GNUNET_ATS_Information) != size)
+ imm = (const struct GNUNET_MessageHeader *) &im[1];
+ if (ntohs (imm->size) + sizeof (struct InboundMessage) != size)
{
GNUNET_break (0);
break;
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Received message of type %u from `%4s'.\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Received message of type %u from `%4s'.\n",
ntohs (imm->type), GNUNET_i2s (&im->peer));
n = neighbour_find (h, &im->peer);
- if (n == NULL)
+ if (NULL == n)
{
GNUNET_break (0);
break;
}
- if (h->rec != NULL)
- h->rec (h->cls, &im->peer, imm, ats, ats_count);
+ if (NULL != h->rec)
+ h->rec (h->cls, &im->peer, imm);
break;
case GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA:
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message.\n", "SET_QUOTA");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Receiving `%s' message.\n", "SET_QUOTA");
if (size != sizeof (struct QuotaSetMessage))
{
GNUNET_break (0);
}
qm = (const struct QuotaSetMessage *) msg;
n = neighbour_find (h, &qm->peer);
- if (n == NULL)
+ if (NULL == n)
break;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message for `%4s' with quota %u\n",
- "SET_QUOTA", GNUNET_i2s (&qm->peer), ntohl (qm->quota.value__));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Receiving `%s' message for `%4s' with quota %u\n",
+ "SET_QUOTA",
+ GNUNET_i2s (&qm->peer),
+ ntohl (qm->quota.value__));
GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker, qm->quota);
break;
default:
* A transmission request could not be satisfied because of
* network congestion. Notify the initiator and clean up.
*
- * @param cls the 'struct GNUNET_TRANSPORT_TransmitHandle'
+ * @param cls the `struct GNUNET_TRANSPORT_TransmitHandle`
* @param tc scheduler context
*/
static void
timeout_request_due_to_congestion (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext
- *tc)
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_TRANSPORT_TransmitHandle *th = cls;
struct Neighbour *n = th->neighbour;
* Transmit message(s) to service.
*
* @param cls handle to transport
- * @param size number of bytes available in buf
+ * @param size number of bytes available in @a buf
* @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @return number of bytes copied to @a buf
*/
static size_t
transport_notify_ready (void *cls, size_t size, void *buf)
{
GNUNET_CONTAINER_DLL_remove (h->control_head, h->control_tail, th);
nret = th->notify (th->notify_cls, size, &cbuf[ret]);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Added %u bytes of control message at %u\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Added %u bytes of control message at %u\n",
nret, ret);
GNUNET_free (th);
ret += nret;
if (th->notify_size + sizeof (struct OutboundMessage) > size)
break; /* does not fit */
if (GNUNET_BANDWIDTH_tracker_get_delay
- (&n->out_tracker, th->notify_size).rel_value > 0)
+ (&n->out_tracker, th->notify_size).rel_value_us > 0)
break; /* too early */
GNUNET_assert (n == GNUNET_CONTAINER_heap_remove_root (h->ready_heap));
n->hn = NULL;
}
/* if there are more pending messages, try to schedule those */
schedule_transmission (h);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting %u bytes to transport service\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting %u bytes to transport service\n",
ret);
return ret;
}
GNUNET_assert (NULL != h->client);
/* destroy all requests that have timed out */
while ((NULL != (n = GNUNET_CONTAINER_heap_peek (h->ready_heap))) &&
- (GNUNET_TIME_absolute_get_remaining (n->th->timeout).rel_value == 0))
+ (0 == GNUNET_TIME_absolute_get_remaining (n->th->timeout).rel_value_us))
{
/* notify client that the request could not be satisfied within
* the given time constraints */
else
return; /* no work to be done */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling next transmission to service in %llu ms\n",
- (unsigned long long) delay.rel_value);
+ "Scheduling next transmission to service in %s\n",
+ GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
h->quota_task =
GNUNET_SCHEDULER_add_delayed (delay, &schedule_transmission_task, h);
}
* @param h handle to the transport service
* @param size number of bytes to be transmitted
* @param notify function to call to get the content
- * @param notify_cls closure for notify
+ * @param notify_cls closure for @a notify
+ * @return a `struct GNUNET_TRANSPORT_TransmitHandle`
*/
-static void
+static struct GNUNET_TRANSPORT_TransmitHandle *
schedule_control_transmit (struct GNUNET_TRANSPORT_Handle *h, size_t size,
GNUNET_CONNECTION_TransmitReadyNotify notify,
void *notify_cls)
{
struct GNUNET_TRANSPORT_TransmitHandle *th;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Control transmit of %u bytes requested\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Control transmit of %u bytes requested\n",
size);
- th = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_TransmitHandle));
+ th = GNUNET_new (struct GNUNET_TRANSPORT_TransmitHandle);
th->notify = notify;
th->notify_cls = notify_cls;
th->notify_size = size;
GNUNET_CONTAINER_DLL_insert_tail (h->control_head, h->control_tail, th);
schedule_transmission (h);
+ return th;
}
* Transmit START message to service.
*
* @param cls unused
- * @param size number of bytes available in buf
+ * @param size number of bytes available in @a buf
* @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @return number of bytes copied to @a buf
*/
static size_t
send_start (void *cls, size_t size, void *buf)
struct StartMessage s;
uint32_t options;
- if (buf == NULL)
+ if (NULL == buf)
{
/* Can only be shutdown, just give up */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Shutdown while trying to transmit `%s' request.\n", "START");
+ "Shutdown while trying to transmit `%s' request.\n",
+ "START");
return 0;
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting `%s' request.\n", "START");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting `%s' request.\n",
+ "START");
GNUNET_assert (size >= sizeof (struct StartMessage));
s.header.size = htons (sizeof (struct StartMessage));
s.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_START);
* @param tc scheduler context
*/
static void
-reconnect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+reconnect (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_TRANSPORT_Handle *h = cls;
h->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
- if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
{
/* shutdown, just give up */
return;
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service.\n");
- GNUNET_assert (h->client == NULL);
- GNUNET_assert (h->control_head == NULL);
- GNUNET_assert (h->control_tail == NULL);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting to transport service.\n");
+ GNUNET_assert (NULL == h->client);
+ GNUNET_assert (NULL == h->control_head);
+ GNUNET_assert (NULL == h->control_tail);
h->client = GNUNET_CLIENT_connect ("transport", h->cfg);
- GNUNET_assert (h->client != NULL);
+ GNUNET_assert (NULL != h->client);
schedule_control_transmit (h, sizeof (struct StartMessage), &send_start, h);
}
h->client = NULL;
}
/* Forget about all neighbours that we used to be connected to */
- GNUNET_CONTAINER_multihashmap_iterate (h->neighbours, &neighbour_delete, h);
+ GNUNET_CONTAINER_multipeermap_iterate (h->neighbours,
+ &neighbour_delete, h);
if (h->quota_task != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (h->quota_task);
GNUNET_free (th);
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling task to reconnect to transport service in %llu ms.\n",
- h->reconnect_delay.rel_value);
+ "Scheduling task to reconnect to transport service in %s.\n",
+ GNUNET_STRINGS_relative_time_to_string(h->reconnect_delay, GNUNET_YES));
h->reconnect_task =
GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
- if (h->reconnect_delay.rel_value == 0)
- {
- h->reconnect_delay = GNUNET_TIME_UNIT_MILLISECONDS;
- }
- else
- {
- h->reconnect_delay = GNUNET_TIME_relative_multiply (h->reconnect_delay, 2);
- h->reconnect_delay =
- GNUNET_TIME_relative_min (GNUNET_TIME_UNIT_SECONDS, h->reconnect_delay);
- }
+ h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay);
+}
+
+
+/**
+ * Cancel control request for transmission to the transport service.
+ *
+ * @param th handle to the transport service
+ * @param tth transmit handle to cancel
+ */
+static void
+cancel_control_transmit (struct GNUNET_TRANSPORT_Handle *th,
+ struct GNUNET_TRANSPORT_TransmitHandle *tth)
+{
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Canceling transmit of contral transmission requested\n");
+ GNUNET_CONTAINER_DLL_remove (th->control_head, th->control_tail, tth);
+ GNUNET_free (tth);
}
+
/**
* Send REQUEST_CONNECT message to the service.
*
- * @param cls the 'struct GNUNET_PeerIdentity'
- * @param size number of bytes available in buf
+ * @param cls the `struct GNUNET_PeerIdentity`
+ * @param size number of bytes available in @a buf
* @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @return number of bytes copied to @a buf
*/
static size_t
send_try_connect (void *cls, size_t size, void *buf)
{
- struct GNUNET_PeerIdentity *pid = cls;
+ struct GNUNET_TRANSPORT_TryConnectHandle *tch = cls;
struct TransportRequestConnectMessage msg;
if (buf == NULL)
{
- GNUNET_free (pid);
+ if (NULL != tch->cb)
+ tch->cb (tch->cb_cls, GNUNET_SYSERR);
+ GNUNET_CONTAINER_DLL_remove (tch->th->tc_head, tch->th->tc_tail, tch);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Discarding `%s' request to `%4s' due to error in transport service connection.\n",
+ "REQUEST_CONNECT",
+ GNUNET_i2s (&tch->pid));
+ GNUNET_free (tch);
return 0;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Transmitting `%s' request with respect to `%4s'.\n", "REQUEST_CONNECT",
- GNUNET_i2s (pid));
+ "Transmitting `%s' request with respect to `%4s'.\n",
+ "REQUEST_CONNECT",
+ GNUNET_i2s (&tch->pid));
GNUNET_assert (size >= sizeof (struct TransportRequestConnectMessage));
msg.header.size = htons (sizeof (struct TransportRequestConnectMessage));
msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_REQUEST_CONNECT);
msg.reserved = htonl (0);
- msg.peer = *pid;
+ msg.peer = tch->pid;
memcpy (buf, &msg, sizeof (msg));
- GNUNET_free (pid);
+ if (NULL != tch->cb)
+ tch->cb (tch->cb_cls, GNUNET_OK);
+ GNUNET_CONTAINER_DLL_remove (tch->th->tc_head, tch->th->tc_tail, tch);
+ GNUNET_free (tch);
return sizeof (struct TransportRequestConnectMessage);
}
-
/**
* Ask the transport service to establish a connection to
* the given peer.
*
* @param handle connection to transport service
* @param target who we should try to connect to
+ * @param cb callback to be called when request was transmitted to transport
+ * service
+ * @param cb_cls closure for the callback
+ * @return a `struct GNUNET_TRANSPORT_TryConnectHandle` handle or
+ * NULL on failure (cb will not be called)
*/
-void
+struct GNUNET_TRANSPORT_TryConnectHandle *
GNUNET_TRANSPORT_try_connect (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity *target)
+ const struct GNUNET_PeerIdentity *target,
+ GNUNET_TRANSPORT_TryConnectCallback cb,
+ void *cb_cls)
{
- struct GNUNET_PeerIdentity *pid;
- if (NULL == handle->client)
- {
- /* FIXME: handle->client can be NULL when transport api is reconnecting */
- GNUNET_break (0);
- return;
- }
+ struct GNUNET_TRANSPORT_TryConnectHandle *tch = NULL;
- pid = GNUNET_malloc (sizeof (struct GNUNET_PeerIdentity));
- *pid = *target;
- schedule_control_transmit (handle,
- sizeof (struct TransportRequestConnectMessage),
- &send_try_connect, pid);
+ if (NULL == handle->client)
+ return NULL;
+ tch = GNUNET_new (struct GNUNET_TRANSPORT_TryConnectHandle);
+ tch->th = handle;
+ tch->pid = *(target);
+ tch->cb = cb;
+ tch->cb_cls = cb_cls;
+ tch->tth = schedule_control_transmit (handle,
+ sizeof (struct TransportRequestConnectMessage),
+ &send_try_connect, tch);
+ GNUNET_CONTAINER_DLL_insert(handle->tc_head, handle->tc_tail, tch);
+ return tch;
}
-struct SendHelloContext
+/**
+ * Cancel the request to transport to try a connect
+ * Callback will not be called
+ *
+ * @param tch the handle to cancel
+ */
+void
+GNUNET_TRANSPORT_try_connect_cancel (struct GNUNET_TRANSPORT_TryConnectHandle *tch)
{
- GNUNET_SCHEDULER_Task cont;
+ struct GNUNET_TRANSPORT_Handle *th;
- void *cls;
-
- struct GNUNET_MessageHeader *msg;
-};
+ th = tch->th;
+ cancel_control_transmit (th, tch->tth);
+ GNUNET_CONTAINER_DLL_remove (th->tc_head, th->tc_tail, tch);
+ GNUNET_free (tch);
+}
/**
* Send HELLO message to the service.
*
* @param cls the HELLO message to send
- * @param size number of bytes available in buf
+ * @param size number of bytes available in @a buf
* @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @return number of bytes copied to @a buf
*/
static size_t
send_hello (void *cls, size_t size, void *buf)
{
- struct SendHelloContext *shc = cls;
- struct GNUNET_MessageHeader *msg = shc->msg;
+ struct GNUNET_TRANSPORT_OfferHelloHandle *ohh = cls;
+ struct GNUNET_MessageHeader *msg = ohh->msg;
uint16_t ssize;
struct GNUNET_SCHEDULER_TaskContext tc;
+
tc.read_ready = NULL;
tc.write_ready = NULL;
tc.reason = GNUNET_SCHEDULER_REASON_TIMEOUT;
-
- if (buf == NULL)
+ if (NULL == buf)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Timeout while trying to transmit `%s' request.\n", "HELLO");
- if (NULL != shc->cont)
- shc->cont (shc->cls, &tc);
+ "Timeout while trying to transmit `%s' request.\n",
+ "HELLO");
+ if (NULL != ohh->cont)
+ ohh->cont (ohh->cls, &tc);
GNUNET_free (msg);
- GNUNET_free (shc);
+ GNUNET_CONTAINER_DLL_remove (ohh->th->oh_head, ohh->th->oh_tail, ohh);
+ GNUNET_free (ohh);
return 0;
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting `%s' request.\n", "HELLO");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting `%s' request.\n",
+ "HELLO");
ssize = ntohs (msg->size);
GNUNET_assert (size >= ssize);
memcpy (buf, msg, ssize);
GNUNET_free (msg);
tc.reason = GNUNET_SCHEDULER_REASON_READ_READY;
- if (NULL != shc->cont)
- shc->cont (shc->cls, &tc);
- GNUNET_free (shc);
+ if (NULL != ohh->cont)
+ ohh->cont (ohh->cls, &tc);
+ GNUNET_CONTAINER_DLL_remove (ohh->th->oh_head, ohh->th->oh_tail, ohh);
+ GNUNET_free (ohh);
+ return ssize;
+}
+
+
+/**
+ * Send traffic metric message to the service.
+ *
+ * @param cls the message to send
+ * @param size number of bytes available in @a buf
+ * @param buf where to copy the message
+ * @return number of bytes copied to @a buf
+ */
+static size_t
+send_metric (void *cls, size_t size, void *buf)
+{
+ struct TrafficMetricMessage *msg = cls;
+ uint16_t ssize;
+
+ if (NULL == buf)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout while trying to transmit `%s' request.\n",
+ "TRAFFIC_METRIC");
+ GNUNET_free (msg);
+ return 0;
+ }
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting `%s' request.\n",
+ "TRAFFIC_METRIC");
+ ssize = ntohs (msg->header.size);
+ GNUNET_assert (size >= ssize);
+ memcpy (buf, msg, ssize);
+ GNUNET_free (msg);
return ssize;
}
+/**
+ * Set transport metrics for a peer and a direction
+ *
+ * @param handle transport handle
+ * @param peer the peer to set the metric for
+ * @param inbound set inbound direction (#GNUNET_YES or #GNUNET_NO)
+ * @param outbound set outbound direction (#GNUNET_YES or #GNUNET_NO)
+ * @param ats the metric as ATS information
+ * @param ats_count the number of metrics
+ *
+ * Supported ATS values:
+ * #GNUNET_ATS_QUALITY_NET_DELAY (value in ms)
+ * #GNUNET_ATS_QUALITY_NET_DISTANCE (value in count(hops))
+ *
+ * Example:
+ * To enforce a delay of 10 ms for peer p1 in sending direction use:
+ * <code>
+ * struct GNUNET_ATS_Information ats;
+ * ats.type = ntohl (GNUNET_ATS_QUALITY_NET_DELAY);
+ * ats.value = ntohl (10);
+ * GNUNET_TRANSPORT_set_traffic_metric (th, p1, TM_SEND, &ats, 1);
+ * </code>
+ * Note:
+ * Delay restrictions in receiving direction will be enforced with
+ * 1 message delay.
+ */
+void
+GNUNET_TRANSPORT_set_traffic_metric (struct GNUNET_TRANSPORT_Handle *handle,
+ const struct GNUNET_PeerIdentity *peer,
+ int inbound,
+ int outbound,
+ const struct GNUNET_ATS_Information *ats,
+ size_t ats_count)
+{
+ struct TrafficMetricMessage *msg;
+
+ GNUNET_assert ((outbound == GNUNET_YES) || (outbound == GNUNET_NO));
+ GNUNET_assert ((inbound == GNUNET_YES) || (inbound == GNUNET_NO));
+ if ((GNUNET_NO == inbound) && (GNUNET_NO == outbound))
+ return;
+ if (0 == ats_count)
+ return;
+
+ size_t len = sizeof (struct TrafficMetricMessage) +
+ ats_count * sizeof (struct GNUNET_ATS_Information);
+
+ msg = GNUNET_malloc (len);
+ msg->header.size = htons (len);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_TRAFFIC_METRIC);
+ msg->direction = htons (0 + outbound + 2 * inbound);
+ msg->ats_count = htons (ats_count);
+ msg->peer = (*peer);
+ memcpy (&msg[1], ats, ats_count * sizeof (struct GNUNET_ATS_Information));
+ schedule_control_transmit (handle, len, &send_metric, msg);
+}
+
+
+
/**
* Offer the transport service the HELLO of another peer. Note that
* the transport service may just ignore this message if the HELLO is
* @param handle connection to transport service
* @param hello the hello message
* @param cont continuation to call when HELLO has been sent,
- * tc reason GNUNET_SCHEDULER_REASON_TIMEOUT for fail
- * tc reasong GNUNET_SCHEDULER_REASON_READY for success
+ * tc reason #GNUNET_SCHEDULER_REASON_TIMEOUT for fail
+ * tc reasong #GNUNET_SCHEDULER_REASON_READ_READY for success
* @param cls closure for continuation
+ * @return a `struct GNUNET_TRANSPORT_OfferHelloHandle` handle or NULL on failure,
+ * in case of failure cont will not be called
*
*/
-void
+struct GNUNET_TRANSPORT_OfferHelloHandle *
GNUNET_TRANSPORT_offer_hello (struct GNUNET_TRANSPORT_Handle *handle,
const struct GNUNET_MessageHeader *hello,
GNUNET_SCHEDULER_Task cont, void *cls)
{
- uint16_t size;
- struct GNUNET_PeerIdentity peer;
+ struct GNUNET_TRANSPORT_OfferHelloHandle *ohh;
struct GNUNET_MessageHeader *msg;
- struct SendHelloContext * shc;
- struct GNUNET_SCHEDULER_TaskContext tc;
-
- tc.read_ready = NULL;
- tc.write_ready = NULL;
- tc.reason = GNUNET_SCHEDULER_REASON_TIMEOUT;
+ struct GNUNET_PeerIdentity peer;
+ uint16_t size;
if (NULL == handle->client)
- {
- if (NULL != cont)
- cont (cls, &tc);
- return;
- }
+ return NULL;
GNUNET_break (ntohs (hello->type) == GNUNET_MESSAGE_TYPE_HELLO);
size = ntohs (hello->size);
GNUNET_break (size >= sizeof (struct GNUNET_MessageHeader));
GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *) hello, &peer))
{
GNUNET_break (0);
- if (NULL != cont)
- if (NULL != cont)
- cont (cls, &tc);
- return;
+ return NULL;
}
+
msg = GNUNET_malloc (size);
memcpy (msg, hello, size);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Offering `%s' message of `%4s' to transport for validation.\n", "HELLO",
GNUNET_i2s (&peer));
- shc = GNUNET_malloc (sizeof (struct SendHelloContext));
- shc->msg = msg;
- shc->cont = cont;
- shc->cls = cls;
- schedule_control_transmit (handle, size, &send_hello, shc);
+
+ ohh = GNUNET_new (struct GNUNET_TRANSPORT_OfferHelloHandle);
+ ohh->th = handle;
+ ohh->cont = cont;
+ ohh->cls = cls;
+ ohh->msg = msg;
+ ohh->tth = schedule_control_transmit (handle, size, &send_hello, ohh);
+ GNUNET_CONTAINER_DLL_insert (handle->oh_head, handle->oh_tail, ohh);
+ return ohh;
}
/**
- * Obtain the HELLO message for this peer.
+ * Cancel the request to transport to offer the HELLO message
+ *
+ * @param ohh the GNUNET_TRANSPORT_OfferHelloHandle to cancel
+ */
+void
+GNUNET_TRANSPORT_offer_hello_cancel (struct GNUNET_TRANSPORT_OfferHelloHandle *ohh)
+{
+ struct GNUNET_TRANSPORT_Handle *th = ohh->th;
+
+ cancel_control_transmit (ohh->th, ohh->tth);
+ GNUNET_CONTAINER_DLL_remove (th->oh_head, th->oh_tail, ohh);
+ GNUNET_free (ohh->msg);
+ GNUNET_free (ohh);
+}
+
+
+/**
+ * Checks if a given peer is connected to us
+ *
+ * @param handle connection to transport service
+ * @param peer the peer to check
+ * @return #GNUNET_YES (connected) or #GNUNET_NO (disconnected)
+ */
+int
+GNUNET_TRANSPORT_check_peer_connected (struct GNUNET_TRANSPORT_Handle *handle,
+ const struct GNUNET_PeerIdentity *peer)
+{
+ if (GNUNET_YES ==
+ GNUNET_CONTAINER_multipeermap_contains (handle->neighbours,
+ peer))
+ return GNUNET_YES;
+ return GNUNET_NO;
+}
+
+
+/**
+ * Task to call the HelloUpdateCallback of the GetHelloHandle
+ *
+ * @param cls the `struct GNUNET_TRANSPORT_GetHelloHandle`
+ * @param tc the scheduler task context
+ */
+static void
+call_hello_update_cb_async (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_TRANSPORT_GetHelloHandle *ghh = cls;
+
+ GNUNET_assert (NULL != ghh->handle->my_hello);
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != ghh->notify_task);
+ ghh->notify_task = GNUNET_SCHEDULER_NO_TASK;
+ ghh->rec (ghh->rec_cls,
+ (const struct GNUNET_MessageHeader *) ghh->handle->my_hello);
+}
+
+
+/**
+ * Obtain the HELLO message for this peer. The callback given in this function
+ * is never called synchronously.
*
* @param handle connection to transport service
* @param rec function to call with the HELLO, sender will be our peer
* identity; message and sender will be NULL on timeout
* (handshake with transport service pending/failed).
* cost estimate will be 0.
- * @param rec_cls closure for rec
+ * @param rec_cls closure for @a rec
* @return handle to cancel the operation
*/
struct GNUNET_TRANSPORT_GetHelloHandle *
{
struct GNUNET_TRANSPORT_GetHelloHandle *hwl;
- hwl = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_GetHelloHandle));
+ hwl = GNUNET_new (struct GNUNET_TRANSPORT_GetHelloHandle);
hwl->rec = rec;
hwl->rec_cls = rec_cls;
hwl->handle = handle;
GNUNET_CONTAINER_DLL_insert (handle->hwl_head, handle->hwl_tail, hwl);
if (handle->my_hello != NULL)
- rec (rec_cls, (const struct GNUNET_MessageHeader *) handle->my_hello);
+ hwl->notify_task = GNUNET_SCHEDULER_add_now (&call_hello_update_cb_async,
+ hwl);
return hwl;
}
{
struct GNUNET_TRANSPORT_Handle *handle = ghh->handle;
+ if (GNUNET_SCHEDULER_NO_TASK != ghh->notify_task)
+ GNUNET_SCHEDULER_cancel (ghh->notify_task);
GNUNET_CONTAINER_DLL_remove (handle->hwl_head, handle->hwl_tail, ghh);
GNUNET_free (ghh);
}
{
struct GNUNET_TRANSPORT_Handle *ret;
- ret = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_Handle));
- if (self != NULL)
+ ret = GNUNET_new (struct GNUNET_TRANSPORT_Handle);
+ if (NULL != self)
{
ret->self = *self;
ret->check_self = GNUNET_YES;
ret->nc_cb = nc;
ret->nd_cb = nd;
ret->reconnect_delay = GNUNET_TIME_UNIT_ZERO;
- ret->neighbours =
- GNUNET_CONTAINER_multihashmap_create (STARTING_NEIGHBOURS_SIZE, GNUNET_YES);
- ret->ready_heap =
- GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service.\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting to transport service.\n");
ret->client = GNUNET_CLIENT_connect ("transport", cfg);
- if (ret->client == NULL)
+ if (NULL == ret->client)
{
GNUNET_free (ret);
return NULL;
}
- schedule_control_transmit (ret, sizeof (struct StartMessage), &send_start, ret);
+ ret->neighbours =
+ GNUNET_CONTAINER_multipeermap_create (STARTING_NEIGHBOURS_SIZE,
+ GNUNET_YES);
+ ret->ready_heap =
+ GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
+ schedule_control_transmit (ret, sizeof (struct StartMessage),
+ &send_start, ret);
return ret;
}
void
GNUNET_TRANSPORT_disconnect (struct GNUNET_TRANSPORT_Handle *handle)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Transport disconnect called!\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Transport disconnect called!\n");
/* this disconnects all neighbours... */
if (handle->reconnect_task == GNUNET_SCHEDULER_NO_TASK)
disconnect_and_schedule_reconnect (handle);
GNUNET_SCHEDULER_cancel (handle->reconnect_task);
handle->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
}
- GNUNET_CONTAINER_multihashmap_destroy (handle->neighbours);
+ GNUNET_CONTAINER_multipeermap_destroy (handle->neighbours);
handle->neighbours = NULL;
if (handle->quota_task != GNUNET_SCHEDULER_NO_TASK)
{
}
GNUNET_free_non_null (handle->my_hello);
handle->my_hello = NULL;
+ GNUNET_assert (handle->tc_head == NULL);
+ GNUNET_assert (handle->tc_tail == NULL);
GNUNET_assert (handle->hwl_head == NULL);
GNUNET_assert (handle->hwl_tail == NULL);
GNUNET_CONTAINER_heap_destroy (handle->ready_heap);
* notify with buf NULL and size 0)?
* @param notify function to call when we are ready to
* send such a message
- * @param notify_cls closure for notify
+ * @param notify_cls closure for @a notify
* @return NULL if someone else is already waiting to be notified
* non-NULL if the notify callback was queued (can be used to cancel
- * using GNUNET_TRANSPORT_notify_transmit_ready_cancel)
+ * using #GNUNET_TRANSPORT_notify_transmit_ready_cancel)
*/
struct GNUNET_TRANSPORT_TransmitHandle *
GNUNET_TRANSPORT_notify_transmit_ready (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity
- *target, size_t size, uint32_t priority,
+ const struct GNUNET_PeerIdentity *target,
+ size_t size, uint32_t priority,
struct GNUNET_TIME_Relative timeout,
- GNUNET_CONNECTION_TransmitReadyNotify
- notify, void *notify_cls)
+ GNUNET_CONNECTION_TransmitReadyNotify notify,
+ void *notify_cls)
{
struct Neighbour *n;
struct GNUNET_TRANSPORT_TransmitHandle *th;
return NULL;
}
GNUNET_assert (NULL == n->hn);
- th = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_TransmitHandle));
+ th = GNUNET_new (struct GNUNET_TRANSPORT_TransmitHandle);
th->neighbour = n;
th->notify = notify;
th->notify_cls = notify_cls;
th->priority = priority;
n->th = th;
/* calculate when our transmission should be ready */
- delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker, size);
- if (delay.rel_value > timeout.rel_value)
- delay.rel_value = 0; /* notify immediately (with failure) */
+ delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker, size + n->traffic_overhead);
+ n->traffic_overhead = 0;
+ if (delay.rel_value_us > timeout.rel_value_us)
+ delay.rel_value_us = 0; /* notify immediately (with failure) */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Bandwidth tracker allows next transmission to peer %s in %llu ms\n",
- GNUNET_i2s (target), (unsigned long long) delay.rel_value);
- n->hn = GNUNET_CONTAINER_heap_insert (handle->ready_heap, n, delay.rel_value);
+ "Bandwidth tracker allows next transmission to peer %s in %s\n",
+ GNUNET_i2s (target),
+ GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ n->hn = GNUNET_CONTAINER_heap_insert (handle->ready_heap, n, delay.rel_value_us);
schedule_transmission (handle);
return th;
}
/**
* Cancel the specified transmission-ready notification.
*
- * @param th handle returned from GNUNET_TRANSPORT_notify_transmit_ready
+ * @param th handle returned from #GNUNET_TRANSPORT_notify_transmit_ready()
*/
void
-GNUNET_TRANSPORT_notify_transmit_ready_cancel (struct
- GNUNET_TRANSPORT_TransmitHandle
- *th)
+GNUNET_TRANSPORT_notify_transmit_ready_cancel (struct GNUNET_TRANSPORT_TransmitHandle *th)
{
struct Neighbour *n;
n = th->neighbour;
GNUNET_assert (th == n->th);
n->th = NULL;
- if (n->hn != NULL)
+ if (NULL != n->hn)
{
GNUNET_CONTAINER_heap_remove_node (n->hn);
n->hn = NULL;
projects / oweals / gnunet.git / blobdiff