* @file fs/gnunet-service-fs.c
* @brief gnunet anonymity protocol implementation
* @author Christian Grothoff
- *
- * To use:
- * - consider re-issue GSF_dht_lookup_ after non-DHT reply received
- * - implement 'SUPPORT_DELAYS'
- *
*/
#include "platform.h"
#include <float.h>
#include "gnunet-service-fs_pr.h"
#include "gnunet-service-fs_push.h"
#include "gnunet-service-fs_put.h"
+#include "gnunet-service-fs_cadet.h"
#include "fs.h"
/**
*/
#define COVER_AGE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
+/**
+ * Collect an instane number of statistics? May cause excessive IPC.
+ */
+#define INSANE_STATISTICS GNUNET_NO
+
/* ****************************** globals ****************************** */
*/
struct GNUNET_LOAD_Value *GSF_rt_entry_lifetime;
+/**
+ * Running average of the observed latency to other peers (round trip).
+ * Initialized to 5s as the initial default.
+ */
+struct GNUNET_TIME_Relative GSF_avg_latency = { 500 };
+
+/**
+ * Handle to ATS service.
+ */
+struct GNUNET_ATS_PerformanceHandle *GSF_ats;
+
+
/**
* Typical priorities we're seeing from other peers right now. Since
* most priorities will be zero, this value is the weighted average of
*/
double GSF_current_priorities;
+/**
+ * Size of the datastore queue we assume for common requests.
+ */
+unsigned int GSF_datastore_queue_size;
+
/**
* How many query messages have we received 'recently' that
* have not yet been claimed as cover traffic?
}
-
/**
* We've just now completed a datastore request. Update our
* datastore load calculations.
struct GNUNET_TIME_Relative delay;
delay = GNUNET_TIME_absolute_get_duration (start);
- GNUNET_LOAD_update (datastore_get_load, delay.rel_value);
+ GNUNET_LOAD_update (datastore_get_load, delay.rel_value_us);
}
* to even consider processing the query at
* all.
*
+ * @param priority priority of the request (used as a reference point to compare with the load)
* @return GNUNET_YES if the load is too high to do anything (load high)
* GNUNET_NO to process normally (load normal)
* GNUNET_SYSERR to process for free (load low)
}
+/**
+ * We've received peer performance information. Update
+ * our running average for the P2P latency.
+*
+ * @param cls closure
+ * @param address the address
+ * @param active is this address in active use
+ * @param bandwidth_out assigned outbound bandwidth for the connection
+ * @param bandwidth_in assigned inbound bandwidth for the connection
+ * @param ats performance data for the address (as far as known)
+ * @param ats_count number of performance records in 'ats'
+ */
+static void
+update_latencies (void *cls,
+ const struct GNUNET_HELLO_Address *address,
+ int active,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+ const struct GNUNET_ATS_Information *ats,
+ uint32_t ats_count)
+{
+ unsigned int i;
+ struct GNUNET_TIME_Relative latency;
+
+ if (NULL == address)
+ {
+ /* ATS service temporarily disconnected */
+ return;
+ }
+
+ if (GNUNET_YES != active)
+ return;
+ for (i = 0; i < ats_count; i++)
+ {
+ if (GNUNET_ATS_QUALITY_NET_DELAY != ntohl (ats[i].type))
+ continue;
+ latency.rel_value_us = ntohl (ats[i].value);
+ GSF_update_peer_latency_ (&address->peer,
+ latency);
+ GSF_avg_latency.rel_value_us =
+ (GSF_avg_latency.rel_value_us * 31 +
+ GNUNET_MIN (5000, ntohl (ats[i].value))) / 32;
+ GNUNET_STATISTICS_set (GSF_stats,
+ gettext_noop
+ ("# running average P2P latency (ms)"),
+ GSF_avg_latency.rel_value_us / 1000LL, GNUNET_NO);
+ break;
+ }
+}
+
+
/**
* Handle P2P "PUT" message.
*
* @param other the other peer involved (sender or receiver, NULL
* for loopback messages where we are both sender and receiver)
* @param message the actual message
- * @param atsi performance information
* @return GNUNET_OK to keep the connection open,
* GNUNET_SYSERR to close it (signal serious error)
*/
static int
handle_p2p_put (void *cls, const struct GNUNET_PeerIdentity *other,
- const struct GNUNET_MessageHeader *message,
- const struct GNUNET_TRANSPORT_ATS_Information *atsi)
+ const struct GNUNET_MessageHeader *message)
{
struct GSF_ConnectedPeer *cp;
{
struct GSF_PendingRequest *pr = cls;
+ if (GNUNET_YES != GSF_pending_request_test_target_ (pr, peer))
+ {
+#if INSANE_STATISTICS
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# Loopback routes suppressed"), 1,
+ GNUNET_NO);
+#endif
+ return;
+ }
GSF_plan_add_ (cp, pr);
}
* @param other the other peer involved (sender or receiver, NULL
* for loopback messages where we are both sender and receiver)
* @param message the actual message
- * @param atsi performance information
* @return GNUNET_OK to keep the connection open,
* GNUNET_SYSERR to close it (signal serious error)
*/
static int
handle_p2p_get (void *cls, const struct GNUNET_PeerIdentity *other,
- const struct GNUNET_MessageHeader *message,
- const struct GNUNET_TRANSPORT_ATS_Information *atsi)
+ const struct GNUNET_MessageHeader *message)
{
struct GSF_PendingRequest *pr;
pr = GSF_handle_p2p_query_ (other, message);
if (NULL == pr)
return GNUNET_SYSERR;
+ GSF_pending_request_get_data_ (pr)->has_started = GNUNET_YES;
GSF_local_lookup_ (pr, &consider_forwarding, NULL);
return GNUNET_OK;
}
struct GSF_PendingRequestData *prd;
prd = GSF_pending_request_get_data_ (pr);
-#if DEBUG_FS_CLIENT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Finished database lookup for local request `%s' with result %d\n",
GNUNET_h2s (&prd->query), result);
-#endif
GNUNET_SERVER_receive_done (client, GNUNET_OK);
if (GNUNET_BLOCK_EVALUATION_OK_LAST == result)
return; /* we're done, 'pr' was already destroyed... */
GSF_pending_request_cancel_ (pr, GNUNET_YES);
return;
}
- GSF_dht_lookup_ (pr);
+ if (0 == prd->anonymity_level)
+ {
+ switch (prd->type)
+ {
+ case GNUNET_BLOCK_TYPE_FS_DBLOCK:
+ case GNUNET_BLOCK_TYPE_FS_IBLOCK:
+ /* the above block types MAY be available via 'cadet' */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Considering cadet-based download for block\n");
+ GSF_cadet_lookup_ (pr);
+ break;
+ case GNUNET_BLOCK_TYPE_FS_UBLOCK:
+ /* the above block types are in the DHT */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Considering DHT-based search for block\n");
+ GSF_dht_lookup_ (pr);
+ break;
+ default:
+ GNUNET_break (0);
+ break;
+ }
+ }
consider_forwarding (NULL, pr, result);
}
const struct GNUNET_MessageHeader *message)
{
struct GSF_PendingRequest *pr;
+ int ret;
- pr = GSF_local_client_start_search_handler_ (client, message);
- if (NULL == pr)
+ pr = NULL;
+ ret = GSF_local_client_start_search_handler_ (client, message, &pr);
+ switch (ret)
{
- /* GNUNET_SERVER_receive_done was already called! */
- return;
+ case GNUNET_SYSERR:
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ break;
+ case GNUNET_NO:
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ break;
+ case GNUNET_YES:
+ GSF_pending_request_get_data_ (pr)->has_started = GNUNET_YES;
+ GSF_local_lookup_ (pr, &start_p2p_processing, client);
+ break;
+ default:
+ GNUNET_assert (0);
}
- GSF_local_lookup_ (pr, &start_p2p_processing, client);
}
static void
shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
+ GSF_cadet_stop_client ();
+ GSF_cadet_stop_server ();
if (NULL != GSF_core)
{
GNUNET_CORE_disconnect (GSF_core);
GSF_core = NULL;
}
+ if (NULL != GSF_ats)
+ {
+ GNUNET_ATS_performance_done (GSF_ats);
+ GSF_ats = NULL;
+ }
GSF_put_done_ ();
GSF_push_done_ ();
GSF_pending_request_done_ ();
* @return GNUNET_YES to continue to iterate
*/
static int
-consider_peer_for_forwarding (void *cls, const GNUNET_HashCode * key,
+consider_peer_for_forwarding (void *cls, const struct GNUNET_HashCode * key,
struct GSF_PendingRequest *pr)
{
struct GSF_ConnectedPeer *cp = cls;
+ struct GNUNET_PeerIdentity pid;
+ GSF_connected_peer_get_identity_ (cp, &pid);
+ if (GNUNET_YES != GSF_pending_request_test_target_ (pr, &pid))
+ {
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# Loopback routes suppressed"), 1,
+ GNUNET_NO);
+ return GNUNET_YES;
+ }
GSF_plan_add_ (cp, pr);
return GNUNET_YES;
}
+/**
+ * Function called after the creation of a connected peer record is complete.
+ *
+ * @param cls closure (unused)
+ * @param cp handle to the newly created connected peer record
+ */
+static void
+connected_peer_cb (void *cls, struct GSF_ConnectedPeer *cp)
+{
+ if (NULL == cp)
+ return;
+ GSF_iterate_pending_requests_ (&consider_peer_for_forwarding, cp);
+}
+
+
/**
* Method called whenever a given peer connects.
*
* @param cls closure, not used
* @param peer peer identity this notification is about
- * @param atsi performance information
*/
static void
-peer_connect_handler (void *cls, const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_TRANSPORT_ATS_Information *atsi)
+peer_connect_handler (void *cls, const struct GNUNET_PeerIdentity *peer)
{
- struct GSF_ConnectedPeer *cp;
-
if (0 == memcmp (&my_id, peer, sizeof (struct GNUNET_PeerIdentity)))
return;
- cp = GSF_peer_connect_handler_ (peer, atsi);
- if (NULL == cp)
- return;
- GSF_iterate_pending_requests_ (&consider_peer_for_forwarding, cp);
+ GSF_peer_connect_handler_ (peer, &connected_peer_cb, NULL);
}
* directly (which should work if you are authorized...).
*
* @param cls closure
- * @param server handle to the server, NULL if we failed
* @param my_identity ID of this peer, NULL if we failed
*/
static void
-peer_init_handler (void *cls, struct GNUNET_CORE_Handle *server,
+peer_init_handler (void *cls,
const struct GNUNET_PeerIdentity *my_identity)
{
my_id = *my_identity;
main_init (struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *c)
{
+ static const struct GNUNET_CORE_MessageHandler no_p2p_handlers[] = {
+ {NULL, 0, 0}
+ };
static const struct GNUNET_CORE_MessageHandler p2p_handlers[] = {
{&handle_p2p_get,
GNUNET_MESSAGE_TYPE_FS_GET, 0},
0},
{NULL, NULL, 0, 0}
};
-
- GSF_core = GNUNET_CORE_connect (GSF_cfg, 2, /* larger? */
- NULL, &peer_init_handler,
- &peer_connect_handler,
- &GSF_peer_disconnect_handler_,
- NULL, GNUNET_NO,
- NULL, GNUNET_NO, p2p_handlers);
+ int anon_p2p_off;
+
+ /* this option is really only for testcases that need to disable
+ _anonymous_ file-sharing for some reason */
+ anon_p2p_off = (GNUNET_YES ==
+ GNUNET_CONFIGURATION_get_value_yesno (GSF_cfg,
+ "fs",
+ "DISABLE_ANON_TRANSFER"));
+ GSF_core =
+ GNUNET_CORE_connect (GSF_cfg, NULL, &peer_init_handler,
+ &peer_connect_handler, &GSF_peer_disconnect_handler_,
+ NULL, GNUNET_NO, NULL, GNUNET_NO,
+ (GNUNET_YES == anon_p2p_off)
+ ? no_p2p_handlers
+ : p2p_handlers);
if (NULL == GSF_core)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
GNUNET_SCHEDULER_add_delayed (COVER_AGE_FREQUENCY, &age_cover_counters,
NULL);
datastore_get_load = GNUNET_LOAD_value_init (DATASTORE_LOAD_AUTODECLINE);
+ GSF_cadet_start_server ();
+ GSF_cadet_start_client ();
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
NULL);
return GNUNET_OK;
run (void *cls, struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
+ unsigned long long dqs;
+
GSF_cfg = cfg;
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_size (GSF_cfg, "fs", "DATASTORE_QUEUE_SIZE",
+ &dqs))
+ {
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_INFO,
+ "fs", "DATASTORE_QUEUE_SIZE");
+ dqs = 1024;
+ }
+ GSF_datastore_queue_size = (unsigned int) dqs;
GSF_enable_randomized_delays =
GNUNET_CONFIGURATION_get_value_yesno (cfg, "fs", "DELAY");
GSF_dsh = GNUNET_DATASTORE_connect (cfg);
GSF_rt_entry_lifetime = GNUNET_LOAD_value_init (GNUNET_TIME_UNIT_FOREVER_REL);
GSF_stats = GNUNET_STATISTICS_create ("fs", cfg);
block_cfg = GNUNET_CONFIGURATION_create ();
- GNUNET_CONFIGURATION_set_value_string (block_cfg, "block", "PLUGINS", "fs");
GSF_block_ctx = GNUNET_BLOCK_context_create (block_cfg);
GNUNET_assert (NULL != GSF_block_ctx);
GSF_dht = GNUNET_DHT_connect (cfg, FS_DHT_HT_SIZE);
GSF_plan_init ();
GSF_pending_request_init_ ();
GSF_connected_peer_init_ ();
+ GSF_ats = GNUNET_ATS_performance_init (GSF_cfg, &update_latencies, NULL);
GSF_push_init_ ();
GSF_put_init_ ();
if ((GNUNET_OK != GNUNET_FS_indexing_init (cfg, GSF_dsh)) ||
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