/*
- This file is part of GNUnet.
- (C) 2010,2011 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
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
+ This file is part of GNUnet.
+ (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
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+ */
/**
* @file transport/gnunet-service-transport_manipulation.c
#include "gnunet-service-transport.h"
#include "transport.h"
-#define DELAY 0
-#define DISTANCE 1
-
-struct GST_ManipulationHandle man_handle;
-
-
-struct GST_ManipulationHandle
+enum TRAFFIC_METRIC_DIRECTION
{
- struct GNUNET_CONTAINER_MultiHashMap *peers;
-
- /**
- * General inbound delay
- */
- struct GNUNET_TIME_Relative delay_in;
-
- /**
- * General outbound delay
- */
- struct GNUNET_TIME_Relative delay_out;
-
- /**
- * General inbound distance
- */
- unsigned long long distance_in;
-
- /**
- * General outbound distance
- */
- unsigned long long distance_out;
-
+ TM_SEND = 0, TM_RECEIVE = 1, TM_BOTH = 2
};
-
+/**
+ * Struct containing information about manipulations to a specific peer
+ */
struct TM_Peer;
+/**
+ * Manipulation entry
+ */
+struct PropManipulationEntry
+{
+ /**
+ * Next in DLL
+ */
+ struct PropManipulationEntry *next;
+
+ /**
+ * Previous in DLL
+ */
+ struct PropManipulationEntry *prev;
+
+ /**
+ * ATS type in HBO
+ */
+ uint32_t type;
+
+ /**
+ * Value in HBO
+ */
+ uint32_t metrics[TM_BOTH];
+};
-struct DelayQueueEntry
+/**
+ * Struct containing information about manipulations to a specific peer
+ */
+struct TM_Peer
{
- struct DelayQueueEntry *prev;
- struct DelayQueueEntry *next;
- struct TM_Peer *tmp;
- struct GNUNET_TIME_Absolute sent_at;
- void *msg;
- size_t msg_size;
- struct GNUNET_TIME_Relative timeout;
- GST_NeighbourSendContinuation cont;
- void *cont_cls;
+ /**
+ * Peer ID
+ */
+ struct GNUNET_PeerIdentity peer;
+
+ struct PropManipulationEntry *head;
+ struct PropManipulationEntry *tail;
+
+ /**
+ * Peer specific manipulation metrics
+ */
+ uint32_t metrics[TM_BOTH][GNUNET_ATS_QualityPropertiesCount];
+
+ /**
+ * Task to schedule delayed sendding
+ */
+ GNUNET_SCHEDULER_TaskIdentifier send_delay_task;
+
+ /**
+ * Send queue DLL head
+ */
+ struct DelayQueueEntry *send_head;
+
+ /**
+ * Send queue DLL tail
+ */
+ struct DelayQueueEntry *send_tail;
};
-struct TM_Peer
+struct GST_ManipulationHandle
+{
+ /**
+ * Hashmap contain all peers currently manipulated
+ */
+ struct GNUNET_CONTAINER_MultiPeerMap *peers;
+
+ /**
+ * Peer containing information for general manipulation
+ */
+ struct TM_Peer general;
+};
+
+/**
+ * Entry in the delay queue for an outbound delayed message
+ */
+struct DelayQueueEntry
{
- struct GNUNET_PeerIdentity peer;
- uint32_t metrics [TM_BOTH][GNUNET_ATS_QualityPropertiesCount];
- GNUNET_SCHEDULER_TaskIdentifier send_delay_task;
- struct DelayQueueEntry *send_head;
- struct DelayQueueEntry *send_tail;
+ /**
+ * Next in DLL
+ */
+ struct DelayQueueEntry *prev;
+
+ /**
+ * Previous in DLL
+ */
+ struct DelayQueueEntry *next;
+
+ /**
+ * Peer this entry is belonging to
+ * if (NULL == tmp): enqueued in generic DLL and scheduled by generic_send_delay_task
+ * else: enqueued in tmp->send_head and tmp->send_tail and scheduled by tmp->send_delay_task
+ */
+ struct TM_Peer *tmp;
+
+ /**
+ * Peer ID
+ */
+ struct GNUNET_PeerIdentity id;
+
+ /**
+ * Absolute time when to send
+ */
+ struct GNUNET_TIME_Absolute sent_at;
+
+ /**
+ * The message
+ */
+ void *msg;
+
+ /**
+ * The message size
+ */
+ size_t msg_size;
+
+ /**
+ * Message timeout
+ */
+ struct GNUNET_TIME_Relative timeout;
+
+ /**
+ * Transports send continuation
+ */
+ GST_NeighbourSendContinuation cont;
+
+ /**
+ * Transports send continuation cls
+ */
+ void *cont_cls;
};
+struct GST_ManipulationHandle man_handle;
+
+/**
+ * DLL head for delayed messages based on general delay
+ */
+struct DelayQueueEntry *generic_dqe_head;
+
+/**
+ * DLL tail for delayed messages based on general delay
+ */
+struct DelayQueueEntry *generic_dqe_tail;
+/**
+ * Task to schedule delayed sending based on general delay
+ */
+GNUNET_SCHEDULER_TaskIdentifier generic_send_delay_task;
static void
-set_delay(struct TM_Peer *tmp, struct GNUNET_PeerIdentity *peer, int direction, uint32_t value)
+set_metric(struct TM_Peer *dest, int direction, uint32_t type, uint32_t value)
{
- uint32_t val;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Set traffic metrics %s for peer `%s' in direction %s to %u\n",
- "DELAY", GNUNET_i2s(peer),
- (TM_BOTH == direction) ? "BOTH" : (TM_SEND == direction) ? "SEND": "RECEIVE", value);
-
- if (UINT32_MAX == value)
- val = UINT32_MAX - 1; /* prevent overflow */
- else if (0 == value)
- val = UINT32_MAX; /* disable */
- else
- val = value;
-
- switch (direction) {
- case TM_BOTH:
- tmp->metrics[TM_SEND][DELAY] = val;
- tmp->metrics[TM_RECEIVE][DELAY] = val;
- break;
- case TM_SEND:
- tmp->metrics[TM_SEND][DELAY] = val;
- break;
- case TM_RECEIVE:
- tmp->metrics[TM_RECEIVE][DELAY] = val;
- break;
- default:
- break;
- }
+ struct PropManipulationEntry *cur;
+ for (cur = dest->head; NULL != cur; cur = cur->next)
+ {
+ if (cur->type == type)
+ break;
+ }
+ if (NULL == cur)
+ {
+ cur = GNUNET_new (struct PropManipulationEntry);
+ GNUNET_CONTAINER_DLL_insert(dest->head, dest->tail, cur);
+ cur->type = type;
+ cur->metrics[TM_SEND] = UINT32_MAX;
+ cur->metrics[TM_RECEIVE] = UINT32_MAX;
+ }
+
+ switch (direction)
+ {
+ case TM_BOTH:
+ cur->metrics[TM_SEND] = value;
+ cur->metrics[TM_RECEIVE] = value;
+ break;
+ case TM_SEND:
+ cur->metrics[TM_SEND] = value;
+ break;
+ case TM_RECEIVE:
+ cur->metrics[TM_RECEIVE] = value;
+ break;
+ default:
+ break;
+ }
+
+}
+
+static uint32_t
+find_metric(struct TM_Peer *dest, uint32_t type, int direction)
+{
+ struct PropManipulationEntry *cur;
+
+ for (cur = dest->head; NULL != cur; cur = cur->next)
+ {
+ if (cur->type == type)
+ return cur->metrics[direction];
+ }
+ return UINT32_MAX;
}
+/**
+ * Clean up metrics for a peer
+ */
+
static void
-set_distance (struct TM_Peer *tmp, struct GNUNET_PeerIdentity *peer, int direction, uint32_t value)
+free_metric(struct TM_Peer *dest)
{
- uint32_t val;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Set traffic metrics %s for peer `%s' in direction %s to %u\n",
- "DISTANCE", GNUNET_i2s(peer),
- (TM_BOTH == direction) ? "BOTH" : (TM_SEND == direction) ? "SEND": "RECEIVE", value);
-
- if (UINT32_MAX == value)
- val = UINT32_MAX - 1; /* prevent overflow */
- else if (0 == value)
- val = UINT32_MAX; /* disable */
- else
- val = value;
-
- switch (direction) {
- case TM_BOTH:
- tmp->metrics[TM_SEND][DISTANCE] = val;
- tmp->metrics[TM_RECEIVE][DISTANCE] = val;
- break;
- case TM_SEND:
- tmp->metrics[TM_SEND][DISTANCE] = val;
- break;
- case TM_RECEIVE:
- tmp->metrics[TM_RECEIVE][DISTANCE] = val;
- break;
- default:
- break;
- }
+ struct PropManipulationEntry *cur;
+ struct PropManipulationEntry *next;
+
+ for (cur = dest->head; NULL != cur; cur = next)
+ {
+ next = cur->next;
+ GNUNET_CONTAINER_DLL_remove(dest->head, dest->tail, cur);
+ GNUNET_free(cur);
+ }
}
+/**
+ * Set traffic metric to manipulate
+ *
+ * @param cls closure
+ * @param client client sending message
+ * @param message containing information
+ */
void
-GST_manipulation_set_metric (void *cls, struct GNUNET_SERVER_Client *client,
+GST_manipulation_set_metric(void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
- struct TrafficMetricMessage *tm = (struct TrafficMetricMessage *) message;
- struct GNUNET_PeerIdentity dummy;
- struct GNUNET_ATS_Information *ats;
- struct TM_Peer *tmp;
- uint32_t type;
- uint32_t value;
- uint16_t direction;
- int c;
- int c2;
-
- if (0 == ntohs (tm->ats_count))
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-
- memset (&dummy, '\0', sizeof (struct GNUNET_PeerIdentity));
- if (0 == memcmp (&tm->peer, &dummy, sizeof (struct GNUNET_PeerIdentity)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received traffic metrics for all peers \n");
-
- ats = (struct GNUNET_ATS_Information *) &tm[1];
- for (c = 0; c < ntohs (tm->ats_count); c++)
- {
- type = htonl (ats[c].type);
- value = htonl (ats[c].value);
- direction = ntohs (tm->direction);
- switch (type) {
- case GNUNET_ATS_QUALITY_NET_DELAY:
-
- if ((TM_RECEIVE == direction) || (TM_BOTH == direction))
- man_handle.delay_in.rel_value = value;
- if ((TM_SEND == direction) || (TM_BOTH == direction))
- man_handle.delay_out.rel_value = value;
- break;
- case GNUNET_ATS_QUALITY_NET_DISTANCE:
-
- break;
- default:
- break;
- }
-
- }
- return;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received traffic metrics for peer `%s'\n",
- GNUNET_i2s(&tm->peer));
-
- if (NULL == (tmp = GNUNET_CONTAINER_multihashmap_get (man_handle.peers, &tm->peer.hashPubKey)))
- {
- tmp = GNUNET_malloc (sizeof (struct TM_Peer));
- tmp->peer = (tm->peer);
- for (c = 0; c < TM_BOTH; c++)
- {
- for (c2 = 0; c2 < GNUNET_ATS_QualityPropertiesCount; c2++)
- {
- tmp->metrics[c][c2] = UINT32_MAX;
- }
- }
- GNUNET_CONTAINER_multihashmap_put (man_handle.peers, &tm->peer.hashPubKey, tmp, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- }
-
- ats = (struct GNUNET_ATS_Information *) &tm[1];
- for (c = 0; c < ntohs (tm->ats_count); c++)
- {
- type = htonl (ats[c].type);
- value = htonl (ats[c].value);
- switch (type) {
- case GNUNET_ATS_QUALITY_NET_DELAY:
- set_delay (tmp, &tm->peer, ntohs (tm->direction), value);
- break;
- case GNUNET_ATS_QUALITY_NET_DISTANCE:
- set_distance (tmp, &tm->peer, ntohs (tm->direction), value);
- break;
- default:
- break;
- }
- }
-
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ struct TrafficMetricMessage *tm = (struct TrafficMetricMessage *) message;
+ struct GNUNET_PeerIdentity dummy;
+ struct GNUNET_ATS_Information *ats;
+ struct TM_Peer *tmp;
+ uint32_t type;
+ uint32_t value;
+ uint16_t direction;
+ int c;
+ int c2;
+
+ if (0 == ntohs(tm->ats_count))
+ GNUNET_SERVER_receive_done(client, GNUNET_SYSERR);
+
+ direction = TM_BOTH;
+ switch (ntohs(tm->direction))
+ {
+ case 1:
+ direction = TM_SEND;
+ break;
+ case 2:
+ direction = TM_RECEIVE;
+ break;
+ case 3:
+ direction = TM_BOTH;
+ break;
+ default:
+ break;
+ }
+
+ memset(&dummy, '\0', sizeof(struct GNUNET_PeerIdentity));
+ if (0 == memcmp(&tm->peer, &dummy, sizeof(struct GNUNET_PeerIdentity)))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "Received traffic metrics for all peers \n");
+
+ ats = (struct GNUNET_ATS_Information *) &tm[1];
+ for (c = 0; c < ntohs(tm->ats_count); c++)
+ {
+ type = htonl(ats[c].type);
+ value = htonl(ats[c].value);
+ set_metric(&man_handle.general, direction, type, value);
+ }
+ return;
+ }
+
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "Received traffic metrics for peer `%s'\n", GNUNET_i2s(&tm->peer));
+
+ if (NULL
+ == (tmp = GNUNET_CONTAINER_multipeermap_get(man_handle.peers, &tm->peer)))
+ {
+ tmp = GNUNET_new (struct TM_Peer);
+ tmp->peer = (tm->peer);
+ for (c = 0; c < TM_BOTH; c++)
+ {
+ for (c2 = 0; c2 < GNUNET_ATS_QualityPropertiesCount; c2++)
+ {
+ tmp->metrics[c][c2] = UINT32_MAX;
+ }
+ }
+ GNUNET_CONTAINER_multipeermap_put(man_handle.peers, &tm->peer, tmp,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
+ }
+
+ ats = (struct GNUNET_ATS_Information *) &tm[1];
+ for (c = 0; c < ntohs(tm->ats_count); c++)
+ {
+ type = htonl(ats[c].type);
+ value = htonl(ats[c].value);
+ set_metric(tmp, direction, type, value);
+ }
+
+ GNUNET_SERVER_receive_done(client, GNUNET_OK);
}
static void
-send_delayed (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+send_delayed(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- struct DelayQueueEntry *dqe = cls;
- struct DelayQueueEntry *next;
- struct TM_Peer *tmp = dqe->tmp;
- struct GNUNET_TIME_Relative delay;
- tmp->send_delay_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_CONTAINER_DLL_remove (tmp->send_head, tmp->send_tail, dqe);
- GST_neighbours_send (&tmp->peer, dqe->msg, dqe->msg_size, dqe->timeout, dqe->cont, dqe->cont_cls);
-
- next = tmp->send_head;
- if (NULL != next)
- {
- /* More delayed messages */
- delay = GNUNET_TIME_absolute_get_remaining (next->sent_at);
- tmp->send_delay_task = GNUNET_SCHEDULER_add_delayed (delay, &send_delayed, dqe);
- }
-
- GNUNET_free (dqe);
+ struct DelayQueueEntry *dqe = cls;
+ struct DelayQueueEntry *next;
+ struct TM_Peer *tmp = dqe->tmp;
+ struct GNUNET_TIME_Relative delay;
+
+ if (NULL != tmp)
+ {
+ GNUNET_break(GNUNET_YES == GST_neighbours_test_connected (&dqe->id));
+ tmp->send_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_CONTAINER_DLL_remove(tmp->send_head, tmp->send_tail, dqe);
+ GST_neighbours_send(&dqe->id, dqe->msg, dqe->msg_size, dqe->timeout,
+ dqe->cont, dqe->cont_cls);
+
+ next = tmp->send_head;
+ if (NULL != next)
+ {
+ /* More delayed messages */
+ delay = GNUNET_TIME_absolute_get_remaining(next->sent_at);
+ tmp->send_delay_task = GNUNET_SCHEDULER_add_delayed(delay,
+ &send_delayed, next);
+ }
+ }
+ else
+ {
+ /* Remove from generic queue */
+ GNUNET_break(GNUNET_YES == GST_neighbours_test_connected (&dqe->id));
+ generic_send_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_CONTAINER_DLL_remove(generic_dqe_head, generic_dqe_tail, dqe);
+ GST_neighbours_send(&dqe->id, dqe->msg, dqe->msg_size, dqe->timeout,
+ dqe->cont, dqe->cont_cls);
+ next = generic_dqe_head;
+ if (NULL != next)
+ {
+ /* More delayed messages */
+ delay = GNUNET_TIME_absolute_get_remaining(next->sent_at);
+ generic_send_delay_task = GNUNET_SCHEDULER_add_delayed(delay,
+ &send_delayed, next);
+ }
+ }
+ GNUNET_free(dqe);
}
+/**
+ * Adapter function between transport's send function and transport plugins
+ *
+ * @param target the peer the message to send to
+ * @param msg the message received
+ * @param msg_size message size
+ * @param timeout timeout
+ * @param cont the continuation to call after sending
+ * @param cont_cls cls for continuation
+ */
void
-GST_manipulation_send (const struct GNUNET_PeerIdentity *target, const void *msg,
+GST_manipulation_send(const struct GNUNET_PeerIdentity *target, const void *msg,
size_t msg_size, struct GNUNET_TIME_Relative timeout,
GST_NeighbourSendContinuation cont, void *cont_cls)
{
- struct TM_Peer *tmp;
- struct DelayQueueEntry *dqe;
- struct GNUNET_TIME_Relative delay;
-
- if (NULL != (tmp = GNUNET_CONTAINER_multihashmap_get (man_handle.peers, &target->hashPubKey)))
- {
- /* Manipulate here */
- /* Delay */
- if (UINT32_MAX != tmp->metrics[TM_SEND][DELAY])
- {
- /* We have a delay */
- delay.rel_value = tmp->metrics[TM_SEND][DELAY];
- dqe = GNUNET_malloc (sizeof (struct DelayQueueEntry) + msg_size);
- dqe->tmp = tmp;
- dqe->sent_at = GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get(), delay);
- dqe->cont = cont;
- dqe->cont_cls = cont_cls;
- dqe->msg = &dqe[1];
- dqe->msg_size = msg_size;
- dqe->timeout = timeout;
- memcpy (dqe->msg, msg, msg_size);
- GNUNET_CONTAINER_DLL_insert_tail (tmp->send_head, tmp->send_tail, dqe);
- if (GNUNET_SCHEDULER_NO_TASK == tmp->send_delay_task)
- tmp->send_delay_task =GNUNET_SCHEDULER_add_delayed (delay, &send_delayed, dqe);
- return;
- }
- }
- else if (man_handle.delay_out.rel_value != 0)
- {
- /* We have a delay */
- delay = man_handle.delay_out;
- dqe = GNUNET_malloc (sizeof (struct DelayQueueEntry) + msg_size);
- dqe->tmp = tmp;
- dqe->sent_at = GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get(), delay);
- dqe->cont = cont;
- dqe->cont_cls = cont_cls;
- dqe->msg = &dqe[1];
- dqe->msg_size = msg_size;
- dqe->timeout = timeout;
- memcpy (dqe->msg, msg, msg_size);
- GNUNET_CONTAINER_DLL_insert_tail (tmp->send_head, tmp->send_tail, dqe);
- if (GNUNET_SCHEDULER_NO_TASK == tmp->send_delay_task)
- tmp->send_delay_task =GNUNET_SCHEDULER_add_delayed (delay, &send_delayed, dqe);
- return;
- }
-
- /* Normal sending */
- GST_neighbours_send (target, msg, msg_size, timeout, cont, cont_cls);
+ struct TM_Peer *tmp;
+ struct DelayQueueEntry *dqe;
+ struct GNUNET_TIME_Relative delay;
+
+ if (NULL
+ != (tmp = GNUNET_CONTAINER_multipeermap_get(man_handle.peers, target)))
+ {
+ GNUNET_break(GNUNET_YES == GST_neighbours_test_connected(target));
+ /* Manipulate here */
+ /* Delay */
+ if (UINT32_MAX != find_metric(tmp, GNUNET_ATS_QUALITY_NET_DELAY, TM_SEND))
+ {
+ /* We have a delay */
+ delay.rel_value_us = find_metric(tmp, GNUNET_ATS_QUALITY_NET_DELAY,
+ TM_SEND);
+ dqe = GNUNET_malloc (sizeof (struct DelayQueueEntry) + msg_size);
+ dqe->id = *target;
+ dqe->tmp = tmp;
+ dqe->sent_at = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(),
+ delay);
+ dqe->cont = cont;
+ dqe->cont_cls = cont_cls;
+ dqe->msg = &dqe[1];
+ dqe->msg_size = msg_size;
+ dqe->timeout = timeout;
+ memcpy(dqe->msg, msg, msg_size);
+ GNUNET_CONTAINER_DLL_insert_tail(tmp->send_head, tmp->send_tail, dqe);
+ if (GNUNET_SCHEDULER_NO_TASK == tmp->send_delay_task)
+ tmp->send_delay_task = GNUNET_SCHEDULER_add_delayed(delay,
+ &send_delayed, dqe);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "Delaying %u byte message to peer `%s' with generic delay for %ms\n", msg_size, GNUNET_i2s (target), GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ return;
+ }
+ }
+ else if (UINT32_MAX
+ != find_metric(&man_handle.general, GNUNET_ATS_QUALITY_NET_DELAY,
+ TM_SEND))
+ {
+ GNUNET_break(GNUNET_YES == GST_neighbours_test_connected(target));
+ /* We have a delay */
+ delay.rel_value_us = find_metric(&man_handle.general,
+ GNUNET_ATS_QUALITY_NET_DELAY, TM_SEND);
+ dqe = GNUNET_malloc (sizeof (struct DelayQueueEntry) + msg_size);
+ dqe->id = *target;
+ dqe->tmp = NULL;
+ dqe->sent_at = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(),
+ delay);
+ dqe->cont = cont;
+ dqe->cont_cls = cont_cls;
+ dqe->msg = &dqe[1];
+ dqe->msg_size = msg_size;
+ dqe->timeout = timeout;
+ memcpy(dqe->msg, msg, msg_size);
+ GNUNET_CONTAINER_DLL_insert_tail(generic_dqe_head, generic_dqe_tail, dqe);
+ if (GNUNET_SCHEDULER_NO_TASK == generic_send_delay_task)
+ {
+ generic_send_delay_task = GNUNET_SCHEDULER_add_delayed(delay,
+ &send_delayed, dqe);
+ }
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "Delaying %u byte message to peer `%s' with peer specific delay for %s\n", msg_size, GNUNET_i2s (target), GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ return;
+ }
+
+ /* Normal sending */
+ GST_neighbours_send(target, msg, msg_size, timeout, cont, cont_cls);
}
+/**
+ * Function that will be called to manipulate ATS information according to
+ * current manipulation settings
+ *
+ * @param peer the peer
+ * @param address binary address
+ * @param session the session
+ * @param ats the ats information
+ * @param ats_count the number of ats information
+ */
+struct GNUNET_ATS_Information *
+GST_manipulation_manipulate_metrics(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 GNUNET_ATS_Information *ats_new =
+ GNUNET_malloc (sizeof (struct GNUNET_ATS_Information) *ats_count);
+ struct TM_Peer *tmp;
+ uint32_t m_tmp;
+ uint32_t g_tmp;
+ int d;
+ tmp = GNUNET_CONTAINER_multipeermap_get(man_handle.peers, peer);
+
+ for (d = 0; d < ats_count; d++)
+ {
+ ats_new[d] = ats[d];
+ m_tmp = UINT32_MAX;
+ if (NULL != tmp)
+ m_tmp = find_metric(tmp, ntohl(ats[d].type), TM_RECEIVE);
+ g_tmp = find_metric(&man_handle.general, ntohl(ats[d].type), TM_RECEIVE);
+
+ if (UINT32_MAX != g_tmp)
+ ats_new[d].value = htonl(g_tmp);
+ if (UINT32_MAX != m_tmp)
+ ats_new[d].value = htonl(m_tmp);
+ }
+
+ return ats_new;
+}
+
+/**
+ * Adapter function between transport plugins and transport receive function
+ * manipulation delays for next send.
+ *
+ * @param cls the closure for transport
+ * @param address the address and the peer the message was received from
+ * @param message the message received
+ * @param session the session the message was received on
+ * @return manipulated delay for next receive
+ */
struct GNUNET_TIME_Relative
-GST_manipulation_recv (void *cls, const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_MessageHeader *message,
- const struct GNUNET_ATS_Information *ats,
- uint32_t ats_count, struct Session *session,
- const char *sender_address,
- uint16_t sender_address_len)
+GST_manipulation_recv (void *cls,
+ const struct GNUNET_HELLO_Address *address,
+ struct Session *session,
+ const struct GNUNET_MessageHeader *message)
{
- struct TM_Peer *tmp;
- int d;
- struct GNUNET_ATS_Information ats_new[ats_count];
- struct GNUNET_TIME_Relative quota_delay;
- struct GNUNET_TIME_Relative m_delay;
- uint32_t m_distance;
-
- if (man_handle.delay_in.rel_value > GNUNET_TIME_UNIT_ZERO.rel_value)
- m_delay = man_handle.delay_in; /* Global delay */
- else
- m_delay = GNUNET_TIME_UNIT_ZERO;
-
- if (man_handle.distance_in > 0)
- m_distance = man_handle.distance_in; /* Global distance */
- else
- m_distance = 0;
-
- for (d = 0; d < ats_count; d++)
- {
- ats_new[d] = ats[d];
- if ((ntohl(ats[d].type) == GNUNET_ATS_QUALITY_NET_DISTANCE) &&
- (man_handle.distance_in > 0))
- ats_new[d].value = htonl(man_handle.distance_in); /* Global inbound distance */
- }
-
- if (NULL != (tmp = GNUNET_CONTAINER_multihashmap_get (man_handle.peers, &peer->hashPubKey)))
- {
- /* Manipulate distance */
- for (d = 0; d < ats_count; d++)
- {
- ats_new[d] = ats[d];
- /* Set distance */
- if ((ntohl(ats[d].type) == GNUNET_ATS_QUALITY_NET_DISTANCE) &&
- (UINT32_MAX != tmp->metrics[TM_RECEIVE][DISTANCE]))
- ats_new[d].value = htonl(tmp->metrics[TM_RECEIVE][DISTANCE]);
- }
- /* Manipulate receive delay */
- if (UINT32_MAX != tmp->metrics[TM_RECEIVE][DELAY])
- m_delay.rel_value = tmp->metrics[TM_RECEIVE][DELAY]; /* Peer specific delay */
- }
-
- quota_delay = GST_receive_callback (cls, peer, message, ats_new, ats_count,
- session, sender_address, sender_address_len);
- if (quota_delay.rel_value > m_delay.rel_value)
- return quota_delay;
- else
- return m_delay;
+ struct TM_Peer *tmp;
+ uint32_t p_recv_delay;
+ uint32_t g_recv_delay;
+ struct GNUNET_TIME_Relative quota_delay;
+ struct GNUNET_TIME_Relative m_delay;
+
+ g_recv_delay = find_metric(&man_handle.general, GNUNET_ATS_QUALITY_NET_DELAY,
+ TM_RECEIVE);
+ if ((g_recv_delay >= GNUNET_TIME_UNIT_ZERO.rel_value_us)
+ && (UINT32_MAX != g_recv_delay))
+ m_delay.rel_value_us = g_recv_delay; /* Global delay */
+ else
+ m_delay = GNUNET_TIME_UNIT_ZERO;
+
+ if (NULL != (tmp = GNUNET_CONTAINER_multipeermap_get(man_handle.peers, &address->peer)))
+ {
+ /* Manipulate receive delay */
+ p_recv_delay = find_metric(tmp, GNUNET_ATS_QUALITY_NET_DELAY, TM_RECEIVE);
+ if (UINT32_MAX != p_recv_delay)
+ m_delay.rel_value_us = p_recv_delay; /* Peer specific delay */
+ }
+
+ quota_delay = GST_receive_callback(cls, address, session, message);
+
+ if (quota_delay.rel_value_us > m_delay.rel_value_us)
+ m_delay = quota_delay;
+
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "Delaying next receive for peer `%s' for %s\n",
+ GNUNET_i2s (&address->peer),
+ GNUNET_STRINGS_relative_time_to_string (m_delay, GNUNET_YES));
+ return m_delay;
+
}
+/**
+ * Initialize traffic manipulation
+ *
+ * @param GST_cfg configuration handle
+ */
void
-GST_manipulation_init (const struct GNUNET_CONFIGURATION_Handle *GST_cfg)
+GST_manipulation_init(const struct GNUNET_CONFIGURATION_Handle *GST_cfg)
{
-
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (GST_cfg,
- "transport", "MANIPULATE_DISTANCE_IN", &man_handle.distance_in))
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Setting inbound distance_in to %u\n",
- (unsigned long long) man_handle.distance_in);
- else
- man_handle.distance_in = 0;
-
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (GST_cfg,
- "transport", "MANIPULATE_DISTANCE_OUT", &man_handle.distance_out))
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Setting outbound distance_in to %u\n",
- (unsigned long long) man_handle.distance_out);
- else
- man_handle.distance_out = 0;
-
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_time (GST_cfg,
- "transport", "MANIPULATE_DELAY_IN", &man_handle.delay_in))
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Delaying inbound traffic for %llu ms\n",
- (unsigned long long) man_handle.delay_in.rel_value);
- else
- man_handle.delay_in.rel_value = 0;
-
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_time (GST_cfg,
- "transport", "MANIPULATE_DELAY_OUT", &man_handle.delay_out))
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Delaying outbound traffic for %llu ms\n",
- (unsigned long long) man_handle.delay_out.rel_value);
- else
- man_handle.delay_out.rel_value = 0;
-
- man_handle.peers = GNUNET_CONTAINER_multihashmap_create (10, GNUNET_NO);
+ unsigned long long tmp;
+ struct GNUNET_TIME_Relative delay;
+
+ if ((GNUNET_OK
+ == GNUNET_CONFIGURATION_get_value_number(GST_cfg, "transport",
+ "MANIPULATE_DISTANCE_IN", &tmp)) && (tmp > 0))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ "Setting inbound distance_in to %llu\n", (unsigned long long) tmp);
+ set_metric(&man_handle.general, TM_RECEIVE,
+ GNUNET_ATS_QUALITY_NET_DISTANCE, tmp);
+ }
+
+ if ((GNUNET_OK
+ == GNUNET_CONFIGURATION_get_value_number(GST_cfg, "transport",
+ "MANIPULATE_DISTANCE_OUT", &tmp)) && (tmp > 0))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ "Setting outbound distance_in to %llu\n", (unsigned long long) tmp);
+ set_metric(&man_handle.general, TM_SEND, GNUNET_ATS_QUALITY_NET_DISTANCE,
+ tmp);
+ }
+
+ if ((GNUNET_OK
+ == GNUNET_CONFIGURATION_get_value_time(GST_cfg, "transport",
+ "MANIPULATE_DELAY_IN", &delay)) && (delay.rel_value_us > 0))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ "Delaying inbound traffic for %s\n", GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ set_metric(&man_handle.general, TM_RECEIVE, GNUNET_ATS_QUALITY_NET_DELAY,
+ delay.rel_value_us);
+ }
+ if ((GNUNET_OK
+ == GNUNET_CONFIGURATION_get_value_time(GST_cfg, "transport",
+ "MANIPULATE_DELAY_OUT", &delay)) && (delay.rel_value_us > 0))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ "Delaying outbound traffic for %s\n", GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ set_metric(&man_handle.general, TM_SEND, GNUNET_ATS_QUALITY_NET_DELAY,
+ delay.rel_value_us);
+ }
+ man_handle.peers = GNUNET_CONTAINER_multipeermap_create(10, GNUNET_NO);
}
-int free_tmps (void *cls,
- const struct GNUNET_HashCode * key,
- void *value)
+static int
+free_tmps(void *cls, const struct GNUNET_PeerIdentity *key, void *value)
{
- struct DelayQueueEntry *dqe;
- struct DelayQueueEntry *next;
- if (NULL != value)
- {
- struct TM_Peer *tmp = (struct TM_Peer *) value;
- GNUNET_CONTAINER_multihashmap_remove (man_handle.peers, key, value);
- next = tmp->send_head;
- while (NULL != (dqe = next))
- {
- next = dqe->next;
- GNUNET_CONTAINER_DLL_remove (tmp->send_head, tmp->send_tail, dqe);
- GNUNET_free (dqe);
- }
- if (GNUNET_SCHEDULER_NO_TASK != tmp->send_delay_task)
- {
- GNUNET_SCHEDULER_cancel (tmp->send_delay_task);
- tmp->send_delay_task = GNUNET_SCHEDULER_NO_TASK;
- }
- GNUNET_free (tmp);
- }
- return GNUNET_OK;
+ struct DelayQueueEntry *dqe;
+ struct DelayQueueEntry *next;
+
+ if (NULL != value)
+ {
+ struct TM_Peer *tmp = (struct TM_Peer *) value;
+
+ if (GNUNET_YES
+ != GNUNET_CONTAINER_multipeermap_remove(man_handle.peers, key, value))
+ GNUNET_break(0);
+ free_metric(tmp);
+ next = tmp->send_head;
+ while (NULL != (dqe = next))
+ {
+ next = dqe->next;
+ GNUNET_CONTAINER_DLL_remove(tmp->send_head, tmp->send_tail, dqe);
+ if (NULL != dqe->cont)
+ dqe->cont(dqe->cont_cls, GNUNET_SYSERR, dqe->msg_size, 0);
+ GNUNET_free(dqe);
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != tmp->send_delay_task)
+ {
+ GNUNET_SCHEDULER_cancel(tmp->send_delay_task);
+ tmp->send_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ GNUNET_free(tmp);
+ }
+ return GNUNET_OK;
}
+/**
+ * Notify manipulation about disconnect so it can discard queued messages
+ *
+ * @param peer the disconnecting peer
+ */
void
-GST_manipulation_stop ()
+GST_manipulation_peer_disconnect(const struct GNUNET_PeerIdentity *peer)
{
- GNUNET_CONTAINER_multihashmap_iterate (man_handle.peers, &free_tmps,NULL);
-
- GNUNET_CONTAINER_multihashmap_destroy (man_handle.peers);
- man_handle.peers = NULL;
+ struct TM_Peer *tmp;
+ struct DelayQueueEntry *dqe;
+ struct DelayQueueEntry *next;
+
+ if (NULL != (tmp = GNUNET_CONTAINER_multipeermap_get(man_handle.peers, peer)))
+ {
+ next = tmp->send_head;
+ while (NULL != (dqe = next))
+ {
+ next = dqe->next;
+ GNUNET_CONTAINER_DLL_remove(tmp->send_head, tmp->send_tail, dqe);
+ if (NULL != dqe->cont)
+ dqe->cont(dqe->cont_cls, GNUNET_SYSERR, dqe->msg_size, 0);
+ GNUNET_free(dqe);
+ }
+ }
+ else if (UINT32_MAX
+ != find_metric(&man_handle.general, GNUNET_ATS_QUALITY_NET_DELAY,
+ TM_SEND))
+ {
+ next = generic_dqe_head;
+ while (NULL != (dqe = next))
+ {
+ next = dqe->next;
+ if (0 == memcmp(peer, &dqe->id, sizeof(dqe->id)))
+ {
+ GNUNET_CONTAINER_DLL_remove(generic_dqe_head, generic_dqe_tail,
+ dqe);
+ if (NULL != dqe->cont)
+ dqe->cont(dqe->cont_cls, GNUNET_SYSERR, dqe->msg_size, 0);
+ GNUNET_free(dqe);
+ }
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != generic_send_delay_task)
+ {
+ GNUNET_SCHEDULER_cancel(generic_send_delay_task);
+ generic_send_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ if (NULL != generic_dqe_head)
+ generic_send_delay_task = GNUNET_SCHEDULER_add_delayed(
+ GNUNET_TIME_absolute_get_remaining(generic_dqe_head->sent_at),
+ &send_delayed, generic_dqe_head);
+ }
+ }
}
+/**
+ * Stop traffic manipulation
+ */
+void
+GST_manipulation_stop()
+{
+ struct DelayQueueEntry *cur;
+ struct DelayQueueEntry *next;
+ GNUNET_CONTAINER_multipeermap_iterate(man_handle.peers, &free_tmps, NULL);
+ GNUNET_CONTAINER_multipeermap_destroy(man_handle.peers);
+
+ next = generic_dqe_head;
+ while (NULL != (cur = next))
+ {
+ next = cur->next;
+ GNUNET_CONTAINER_DLL_remove(generic_dqe_head, generic_dqe_tail, cur);
+ if (NULL != cur->cont)
+ cur->cont(cur->cont_cls, GNUNET_SYSERR, cur->msg_size, 0);
+ GNUNET_free(cur);
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != generic_send_delay_task)
+ {
+ GNUNET_SCHEDULER_cancel(generic_send_delay_task);
+ generic_send_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+
+ free_metric(&man_handle.general);
+ man_handle.peers = NULL;
+}
/* end of file gnunet-service-transport_manipulation.c */
projects / oweals / gnunet.git / blobdiff