+++ /dev/null
-/*
- This file is part of GNUnet.
- (C) 2009 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 dht/gnunet-dht-driver.c
- * @brief Driver for setting up a group of gnunet peers and
- * then issuing GETS and PUTS on the DHT. Coarse results
- * are reported, fine grained results (if requested) are
- * logged to a (mysql) database, or to file.
- * @author Nathan Evans (who to blame)
- */
-#include "platform.h"
-#ifndef HAVE_MALICIOUS
-#error foo
-#endif
-#include "gnunet_testing_lib.h"
-#include "gnunet_core_service.h"
-#include "gnunet_dht_service.h"
-#include "dhtlog.h"
-#include "dht.h"
-#include "gauger.h"
-
-/* DEFINES */
-#define VERBOSE GNUNET_NO
-
-/* Timeout for entire driver to run */
-#define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
-
-/* Timeout for waiting for (individual) replies to get requests */
-#define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
-
-#define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
-
-/* Timeout for waiting for gets to be sent to the service */
-#define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
-
-/* Timeout for waiting for puts to be sent to the service */
-#define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
-
-/* Time to allow a find peer request to take */
-#define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
-
-/* Time to wait for all peers disconnected due to to churn to actually be removed from system */
-#define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
-
-#define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
-
-#define DEFAULT_TEST_DATA_SIZE 8
-
-#define DEFAULT_BUCKET_SIZE 4
-
-/* If more than this many peers are added, slow down sending */
-#define MAX_FIND_PEER_CUTOFF 2000
-
-/* If less than this many peers are added, speed up sending */
-#define MIN_FIND_PEER_CUTOFF 500
-
-/* How often (in seconds) to print out connection information */
-#define CONN_UPDATE_DURATION 10
-
-#define DEFAULT_MAX_OUTSTANDING_PUTS 10
-
-#define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 64
-
-#define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
-
-#define DEFAULT_MAX_OUTSTANDING_GETS 10
-
-#define DEFAULT_CONNECT_TIMEOUT 60
-
-#define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
-
-#define DEFAULT_RECONNECT_ATTEMPTS 8
-
-/*
- * Default frequency for sending malicious get messages
- */
-#define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
-
-/*
- * Default frequency for sending malicious put messages
- */
-#define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
-
-/* Structs */
-
-struct MaliciousContext
-{
- /**
- * Handle to DHT service (via the API)
- */
- struct GNUNET_DHT_Handle *dht_handle;
-
- /**
- * Handle to the peer daemon
- */
- struct GNUNET_TESTING_Daemon *daemon;
-
- /**
- * Task for disconnecting DHT handles
- */
- GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
-
- /**
- * What type of malicious to set this peer to.
- */
- int malicious_type;
-};
-
-struct TestFindPeer
-{
- /* This is a linked list */
- struct TestFindPeer *next;
-
- /* Handle to the bigger context */
- struct FindPeerContext *find_peer_context;
-
- /**
- * Handle to the peer's DHT service (via the API)
- */
- struct GNUNET_DHT_Handle *dht_handle;
-
- /**
- * Handle to the peer daemon
- */
- struct GNUNET_TESTING_Daemon *daemon;
-
- /**
- * Task for disconnecting DHT handles
- */
- GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
-};
-
-struct TestPutContext
-{
- /* This is a linked list */
- struct TestPutContext *next;
-
- /**
- * Handle to the first peers DHT service (via the API)
- */
- struct GNUNET_DHT_Handle *dht_handle;
-
- /**
- * Handle to the PUT peer daemon
- */
- struct GNUNET_TESTING_Daemon *daemon;
-
- /**
- * Identifier for this PUT
- */
- uint32_t uid;
-
- /**
- * Task for disconnecting DHT handles
- */
- GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
-};
-
-struct TestGetContext
-{
- /* This is a linked list */
- struct TestGetContext *next;
-
- /**
- * Handle to the first peers DHT service (via the API)
- */
- struct GNUNET_DHT_Handle *dht_handle;
-
- /**
- * Handle for the DHT get request
- */
- struct GNUNET_DHT_GetHandle *get_handle;
-
- /**
- * Handle to the GET peer daemon
- */
- struct GNUNET_TESTING_Daemon *daemon;
-
- /**
- * Identifier for this GET
- */
- uint32_t uid;
-
- /**
- * Task for disconnecting DHT handles (and stopping GET)
- */
- GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
-
- /**
- * Whether or not this request has been fulfilled already.
- */
- int succeeded;
-};
-
-/**
- * Simple struct to keep track of progress, and print a
- * nice little percentage meter for long running tasks.
- */
-struct ProgressMeter
-{
- unsigned int total;
-
- unsigned int modnum;
-
- unsigned int dotnum;
-
- unsigned int completed;
-
- int print;
-
- char *startup_string;
-};
-
-/**
- * Linked list of information for populating statistics
- * before ending trial.
- */
-struct StatisticsIteratorContext
-{
- const struct GNUNET_PeerIdentity *peer;
- unsigned int stat_routes;
- unsigned int stat_route_forwards;
- unsigned int stat_results;
- unsigned int stat_results_to_client;
- unsigned int stat_result_forwards;
- unsigned int stat_gets;
- unsigned int stat_puts;
- unsigned int stat_puts_inserted;
- unsigned int stat_find_peer;
- unsigned int stat_find_peer_start;
- unsigned int stat_get_start;
- unsigned int stat_put_start;
- unsigned int stat_find_peer_reply;
- unsigned int stat_get_reply;
- unsigned int stat_find_peer_answer;
- unsigned int stat_get_response_start;
-};
-
-/**
- * Context for getting a topology, logging it, and continuing
- * on with some next operation.
- */
-struct TopologyIteratorContext
-{
- unsigned int total_iterations;
- unsigned int current_iteration;
- unsigned int total_connections;
- unsigned int total_peers;
- struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
- struct GNUNET_PeerIdentity *peer;
- GNUNET_SCHEDULER_Task cont;
- void *cls;
- struct GNUNET_TIME_Relative timeout;
-};
-
-struct PeerCount
-{
- /** Node in the heap */
- struct GNUNET_CONTAINER_HeapNode *heap_node;
-
- /** Peer the count refers to */
- struct GNUNET_PeerIdentity peer_id;
-
- /** Count of connections this peer has */
- unsigned int count;
-};
-
-/**
- * Context for sending out find peer requests.
- */
-struct FindPeerContext
-{
- /**
- * How long to send find peer requests, once the settle time
- * is over don't send any more out!
- */
- struct GNUNET_TIME_Absolute endtime;
-
- /**
- * Number of connections in the current topology
- * (after this round of find peer requests has ended).
- */
- unsigned int current_peers;
-
- /**
- * Number of connections in the current topology
- * (before this round of find peer requests started).
- */
- unsigned int previous_peers;
-
- /**
- * Number of find peer requests we have currently
- * outstanding.
- */
- unsigned int outstanding;
-
- /**
- * Number of find peer requests to send in this round.
- */
- unsigned int total;
-
- /**
- * Number of find peer requests sent last time around.
- */
- unsigned int last_sent;
-
- /**
- * Hashmap of peers in the current topology, value
- * is a PeerCount, with the number of connections
- * this peer has.
- */
- struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
-
- /**
- * Handle to an active attempt to connect this peer.
- */
- struct GNUNET_TESTING_ConnectContext *cc;
-
- /**
- * Min heap which orders values in the peer_hash for
- * easy lookup.
- */
- struct GNUNET_CONTAINER_Heap *peer_min_heap;
-
- /**
- * Callback for counting the peers in the current topology.
- */
- GNUNET_TESTING_NotifyTopology count_peers_cb;
-};
-
-enum DHT_ROUND_TYPES
-{
- /**
- * Next full round (puts + gets).
- */
- DHT_ROUND_NORMAL,
-
- /**
- * Next round of gets.
- */
- DHT_ROUND_GET,
-
- /**
- * Next round of puts.
- */
- DHT_ROUND_PUT,
-
- /**
- * Next round of churn.
- */
- DHT_ROUND_CHURN
-};
-
-/* Globals */
-
-/**
- * How long to try to connect two peers.
- */
-struct GNUNET_TIME_Relative connect_timeout;
-
-/**
- * How many times to re-attempt connecting two peers.
- */
-static unsigned long long connect_attempts;
-
-/**
- * Timeout to let all GET requests happen.
- */
-static struct GNUNET_TIME_Relative all_get_timeout;
-
-/**
- * Per get timeout
- */
-static struct GNUNET_TIME_Relative get_timeout;
-
-/**
- * Time to allow for GET requests to be sent to service.
- */
-static struct GNUNET_TIME_Relative get_delay;
-
-/**
- * Time to allow for PUT requests to be sent to service.
- */
-static struct GNUNET_TIME_Relative put_delay;
-
-/**
- * Delay between sending find peer requests (if
- * handled by the driver, no effect if sent by service).
- */
-static struct GNUNET_TIME_Relative find_peer_delay;
-
-/**
- * Time between find peer requests
- * (find_peer_delay / max_outstanding_find_peer)
- */
-static struct GNUNET_TIME_Relative find_peer_offset;
-
-/**
- * How many seconds to allow each peer to start.
- */
-static struct GNUNET_TIME_Relative seconds_per_peer_start;
-
-/**
- * At what time did we start the connection process.
- */
-static struct GNUNET_TIME_Absolute connect_start_time;
-
-/**
- * What was the last time we updated connection/second information.
- */
-static struct GNUNET_TIME_Absolute connect_last_time;
-
-/**
- * At what time did we start the hostkey creation process.
- */
-static struct GNUNET_TIME_Absolute hostkey_start_time;
-
-/**
- * At what time did we start the peer startup process.
- */
-static struct GNUNET_TIME_Absolute peer_start_time;
-
-/**
- * Boolean value, should the driver issue find peer requests
- * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
- */
-static unsigned int do_find_peer;
-
-/**
- * Whether or not to insert gauger data.
- */
-static unsigned int insert_gauger_data;
-
-/**
- * Boolean value, should replication be done by the dht
- * service (GNUNET_YES) or by the driver (GNUNET_NO)
- */
-static unsigned int in_dht_replication;
-
-/**
- * Size of test data to insert/retrieve during testing.
- */
-static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
-
-/**
- * Maximum number of concurrent connections to peers.
- */
-static unsigned long long max_outstanding_connections;
-
-/**
- * Maximum number of concurrent ssh instances to peers.
- */
-static unsigned long long max_concurrent_ssh;
-
-/**
- * Maximum number of concurrent PUT requests.
- */
-static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
-
-/**
- * Maximum number of concurrent GET requests.
- */
-static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
-
-/**
- * Number of nodes issuing malicious GET messages.
- */
-static unsigned long long malicious_getters;
-
-/**
- * Maximum number of concurrent find peer messages being sent.
- */
-static unsigned long long max_outstanding_find_peers;
-
-/**
- * Number of nodes issuing malicious PUT messages.
- */
-static unsigned long long malicious_putters;
-
-/**
- * Time (in seconds) to delay between rounds.
- */
-static unsigned long long round_delay;
-
-/**
- * The identifier for this trial (if we have one)
- * for external data collection.
- */
-static unsigned long long trial_to_run;
-
-/**
- * How many malicious droppers to seed in the network.
- */
-static unsigned long long malicious_droppers;
-
-/**
- * Bloom filter to restrict malicious nodes chosen.
- */
-struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
-
-/**
- * Whether malicious droppers should be chosen based on proximity to a key.
- */
-static int malicious_sybil;
-
-/**
- * Target for the malicious sybil nodes (choose the closest to this key).
- */
-static GNUNET_HashCode sybil_target;
-
-/**
- * How often to send malicious GET messages.
- */
-static struct GNUNET_TIME_Relative malicious_get_frequency;
-
-/**
- * How often to send malicious PUT messages.
- */
-static struct GNUNET_TIME_Relative malicious_put_frequency;
-
-/**
- * How long to send find peer requests.
- */
-static unsigned long long settle_time;
-
-/**
- * Handle to the dhtlog service.
- */
-static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
-
-/**
- * Replication value for GET requests.
- */
-static unsigned long long get_replication;
-
-/**
- * Replication value for PUT requests.
- */
-static unsigned long long put_replication;
-
-/**
- * If GNUNET_YES, insert data at the same peers every time.
- * Otherwise, choose a new random peer to insert at each time.
- */
-static unsigned int replicate_same;
-
-/**
- * If GNUNET_YES, issue GET requests at the same peers every time.
- * Otherwise, choose a new random peer/data combination to search
- * each time.
- */
-static unsigned int get_from_same;
-
-/**
- * Should malicious peers be set after allowing for settle time?
- * Default is to set them malicious after initial connection setup.
- */
-static unsigned int malicious_after_settle;
-
-/**
- * Number of rounds for testing (PUTS + GETS)
- */
-static unsigned long long total_rounds;
-
-/**
- * Target number of connections (will stop sending find peer
- * messages when this number is exceeded)
- */
-static unsigned long long target_total_connections;
-
-/**
- * Number of rounds already run
- */
-static unsigned int rounds_finished;
-
-/**
- * Number of rounds of churn to read from the file (first line, should be a single number).
- */
-static unsigned int churn_rounds;
-
-/**
- * Current round we are in for churn, tells us how many peers to connect/disconnect.
- */
-static unsigned int current_churn_round;
-
-/**
- * Number of times to churn per round
- */
-static unsigned long long churns_per_round;
-
-/**
- * Array of churn values.
- */
-static unsigned int *churn_array;
-
-/**
- * Hash map of stats contexts.
- */
-static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
-
-/**
- * LL of malicious settings.
- */
-struct MaliciousContext *all_malicious;
-
-/**
- * List of GETS to perform
- */
-struct TestGetContext *all_gets;
-
-/**
- * List of PUTS to perform
- */
-struct TestPutContext *all_puts;
-
-/**
- * Directory to store temporary data in, defined in config file
- */
-static char *test_directory;
-
-/**
- * Variable used to store the number of connections we should wait for.
- */
-static unsigned int expected_connections;
-
-/**
- * Variable used to keep track of how many peers aren't yet started.
- */
-static unsigned long long peers_left;
-
-/**
- * Handle to the set of all peers run for this test.
- */
-static struct GNUNET_TESTING_PeerGroup *pg;
-
-/**
- * Global config handle.
- */
-static const struct GNUNET_CONFIGURATION_Handle *config;
-
-/**
- * Total number of peers to run, set based on config file.
- */
-static unsigned long long num_peers;
-
-/**
- * Total number of items to insert.
- */
-static unsigned long long num_puts;
-
-/**
- * How many puts do we currently have in flight?
- */
-static unsigned long long outstanding_puts;
-
-/**
- * How many puts are done?
- */
-static unsigned long long puts_completed;
-
-/**
- * Total number of items to attempt to get.
- */
-static unsigned long long num_gets;
-
-/**
- * How many puts do we currently have in flight?
- */
-static unsigned long long outstanding_gets;
-
-/**
- * How many gets are done?
- */
-static unsigned long long gets_completed;
-
-/**
- * If non-zero, end testing if this many GETs
- * complete in a single round.
- */
-static unsigned long long target_completions;
-
-/**
- * Total number of items to attempt to get.
- */
-static unsigned long long cumulative_num_gets;
-
-/**
- * How many gets are done?
- */
-static unsigned long long cumulative_successful_gets;
-
-/**
- * How many gets failed?
- */
-static unsigned long long gets_failed;
-
-#ifdef HAVE_MALICIOUS
-/**
- * How many malicious control messages do
- * we currently have in flight?
- */
-static unsigned long long outstanding_malicious;
-
-/**
- * How many set malicious peers are done?
- */
-static unsigned int malicious_completed;
-#endif
-
-/**
- * For gauger logging, what specific identifier (svn revision)
- * should be used?
- */
-static unsigned long long revision;
-
-/**
- * Global used to count how many connections we have currently
- * been notified about (how many times has topology_callback been called
- * with success?)
- */
-static uint64_t total_connections;
-
-/**
- * Previous connections, for counting new connections during some duration.
- */
-static uint64_t previous_connections;
-
-/**
- * For counting failed connections during some duration.
- */
-static uint64_t previous_failed_connections;
-
-/**
- * Global used to count how many failed connections we have
- * been notified about (how many times has topology_callback
- * been called with failure?)
- */
-static uint64_t failed_connections;
-
-/**
- * If GNUNET_YES, only log PUT/GET round data to mysql, otherwise
- * log everything (including each dht service logging).
- */
-static unsigned int dhtlog_minimal;
-
-/* Task handle to use to schedule shutdown if something goes wrong */
-GNUNET_SCHEDULER_TaskIdentifier die_task;
-
-static char *blacklist_transports;
-
-static enum GNUNET_TESTING_Topology topology;
-
-static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
-
-static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
-
-static enum GNUNET_TESTING_TopologyOption connect_topology_option =
- GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
-
-static double connect_topology_option_modifier = 0.0;
-
-static struct ProgressMeter *hostkey_meter;
-
-static struct ProgressMeter *peer_start_meter;
-
-static struct ProgressMeter *peer_connect_meter;
-
-static struct ProgressMeter *put_meter;
-
-static struct ProgressMeter *get_meter;
-
-static GNUNET_HashCode *known_keys;
-
-/* Global return value (0 for success, anything else for failure) */
-static int ok;
-
-/**
- * Create a meter to keep track of the progress of some task.
- *
- * @param total the total number of items to complete
- * @param start_string a string to prefix the meter with (if printing)
- * @param print GNUNET_YES to print the meter, GNUNET_NO to count
- * internally only
- *
- * @return the progress meter
- */
-static struct ProgressMeter *
-create_meter (unsigned int total, char *start_string, int print)
-{
- struct ProgressMeter *ret;
-
- ret = GNUNET_malloc (sizeof (struct ProgressMeter));
- ret->print = print;
- ret->total = total;
- ret->modnum = total / 4;
- ret->dotnum = (total / 50) + 1;
- if (start_string != NULL)
- ret->startup_string = GNUNET_strdup (start_string);
- else
- ret->startup_string = GNUNET_strdup ("");
-
- return ret;
-}
-
-/**
- * Update progress meter (increment by one).
- *
- * @param meter the meter to update and print info for
- *
- * @return GNUNET_YES if called the total requested,
- * GNUNET_NO if more items expected
- */
-static int
-update_meter (struct ProgressMeter *meter)
-{
- if (meter->print == GNUNET_YES)
- {
- if (meter->completed % meter->modnum == 0)
- {
- if (meter->completed == 0)
- {
- fprintf (stdout, "%sProgress: [0%%", meter->startup_string);
- }
- else
- fprintf (stdout, "%d%%",
- (int) (((float) meter->completed / meter->total) * 100));
- }
- else if (meter->completed % meter->dotnum == 0)
- fprintf (stdout, ".");
-
- if (meter->completed + 1 == meter->total)
- fprintf (stdout, "%d%%]\n", 100);
- fflush (stdout);
- }
- meter->completed++;
-
- if (meter->completed == meter->total)
- return GNUNET_YES;
- return GNUNET_NO;
-}
-
-/**
- * Reset progress meter.
- *
- * @param meter the meter to reset
- *
- * @return GNUNET_YES if meter reset,
- * GNUNET_SYSERR on error
- */
-static int
-reset_meter (struct ProgressMeter *meter)
-{
- if (meter == NULL)
- return GNUNET_SYSERR;
-
- meter->completed = 0;
- return GNUNET_YES;
-}
-
-/**
- * Release resources for meter
- *
- * @param meter the meter to free
- */
-static void
-free_meter (struct ProgressMeter *meter)
-{
- GNUNET_free_non_null (meter->startup_string);
- GNUNET_free (meter);
-}
-
-/**
- * Check whether peers successfully shut down.
- */
-static void
-shutdown_callback (void *cls, const char *emsg)
-{
- if (emsg != NULL)
- {
- if (ok == 0)
- ok = 2;
- }
-}
-
-/**
- * Task to release DHT handles for PUT
- */
-static void
-put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestPutContext *test_put = cls;
-
- test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_DHT_disconnect (test_put->dht_handle);
- test_put->dht_handle = NULL;
- if (replicate_same == GNUNET_NO)
- test_put->daemon =
- GNUNET_TESTING_daemon_get (pg,
- GNUNET_CRYPTO_random_u32
- (GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
-}
-
-/**
- * Function scheduled to be run on the successful completion of this
- * testcase.
- */
-static void
-finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n",
- (char *) cls);
- GNUNET_assert (pg != NULL);
- struct TestPutContext *test_put = all_puts;
- struct TestGetContext *test_get = all_gets;
- char *temp_get_string;
- char *revision_str;
-
- while (test_put != NULL)
- {
- if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (test_put->disconnect_task);
- if (test_put->dht_handle != NULL)
- GNUNET_DHT_disconnect (test_put->dht_handle);
- test_put = test_put->next;
- }
-
- while (test_get != NULL)
- {
- if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (test_get->disconnect_task);
- if (test_get->get_handle != NULL)
- GNUNET_DHT_get_stop (test_get->get_handle);
- if (test_get->dht_handle != NULL)
- GNUNET_DHT_disconnect (test_get->dht_handle);
- test_get = test_get->next;
- }
-
- GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
-
- if (dhtlog_handle != NULL)
- {
- fprintf (stderr, "Update trial endtime\n");
- dhtlog_handle->update_trial (cumulative_successful_gets);
- GNUNET_DHTLOG_disconnect (dhtlog_handle);
- dhtlog_handle = NULL;
- }
-
- if (hostkey_meter != NULL)
- free_meter (hostkey_meter);
- if (peer_start_meter != NULL)
- free_meter (peer_start_meter);
- if (peer_connect_meter != NULL)
- free_meter (peer_connect_meter);
- if (put_meter != NULL)
- free_meter (put_meter);
- if (get_meter != NULL)
- free_meter (get_meter);
-
- GNUNET_asprintf (&temp_get_string, "DHT Successful GETs", trial_to_run);
- GNUNET_asprintf (&revision_str, "%llu", revision);
- if (GNUNET_YES == insert_gauger_data)
- GAUGER_ID ("DHT_TESTING", temp_get_string,
- cumulative_successful_gets / (double) cumulative_num_gets,
- "percent successful", revision_str);
- fprintf (stderr,
- "Finished trial, had %llu successful gets out of %llu total, %.2f percent succeeded\n",
- cumulative_successful_gets, cumulative_num_gets,
- cumulative_successful_gets / (double) cumulative_num_gets);
- GNUNET_free (temp_get_string);
-
- ok = 0;
-}
-
-/**
- * Callback for iterating over all the peer connections of a peer group.
- */
-static void
-log_topology_cb (void *cls, const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second, const char *emsg)
-{
- struct TopologyIteratorContext *topo_ctx = cls;
-
- if ((first != NULL) && (second != NULL))
- {
- if ((topo_ctx->peers_seen != NULL) &&
- (GNUNET_NO ==
- GNUNET_CONTAINER_multihashmap_contains (topo_ctx->peers_seen,
- &first->hashPubKey)))
- {
- GNUNET_CONTAINER_multihashmap_put (topo_ctx->peers_seen,
- &first->hashPubKey, NULL,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- topo_ctx->total_peers++;
- }
- topo_ctx->total_connections++;
- if ((GNUNET_NO == dhtlog_minimal) && (dhtlog_handle != NULL))
- dhtlog_handle->insert_extended_topology (first, second);
- }
- else
- {
- GNUNET_assert (dhtlog_handle != NULL);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Topology iteration (%u/%u) finished (%u connections, %u peers)\n",
- topo_ctx->current_iteration, topo_ctx->total_iterations,
- topo_ctx->total_connections, topo_ctx->total_peers);
- dhtlog_handle->update_topology (topo_ctx->total_connections);
- if (topo_ctx->cont != NULL)
- GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
- if (topo_ctx->peers_seen != NULL)
- GNUNET_CONTAINER_multihashmap_destroy (topo_ctx->peers_seen);
- GNUNET_free (topo_ctx);
- }
-}
-
-/**
- * Iterator over hash map entries.
- *
- * @param cls closure - always NULL
- * @param key current key code
- * @param value value in the hash map, a stats context
- * @return GNUNET_YES if we should continue to
- * iterate,
- * GNUNET_NO if not.
- */
-static int
-stats_iterate (void *cls, const GNUNET_HashCode * key, void *value)
-{
- struct StatisticsIteratorContext *stats_ctx;
-
- if (value == NULL)
- return GNUNET_NO;
- stats_ctx = value;
- dhtlog_handle->insert_stat (stats_ctx->peer, stats_ctx->stat_routes,
- stats_ctx->stat_route_forwards,
- stats_ctx->stat_results,
- stats_ctx->stat_results_to_client,
- stats_ctx->stat_result_forwards,
- stats_ctx->stat_gets, stats_ctx->stat_puts,
- stats_ctx->stat_puts_inserted,
- stats_ctx->stat_find_peer,
- stats_ctx->stat_find_peer_start,
- stats_ctx->stat_get_start,
- stats_ctx->stat_put_start,
- stats_ctx->stat_find_peer_reply,
- stats_ctx->stat_get_reply,
- stats_ctx->stat_find_peer_answer,
- stats_ctx->stat_get_response_start);
- GNUNET_free (stats_ctx);
- return GNUNET_YES;
-}
-
-static void
-stats_finished (void *cls, int result)
-{
- fprintf (stderr, "Finished getting all peers statistics, iterating!\n");
- GNUNET_CONTAINER_multihashmap_iterate (stats_map, &stats_iterate, NULL);
- GNUNET_CONTAINER_multihashmap_destroy (stats_map);
- GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
-}
-
-/**
- * Callback function to process statistic values.
- *
- * @param cls closure
- * @param peer the peer the statistics belong to
- * @param subsystem name of subsystem that created the statistic
- * @param name the name of the datum
- * @param value the current value
- * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
- * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
- */
-static int
-stats_handle (void *cls, const struct GNUNET_PeerIdentity *peer,
- const char *subsystem, const char *name, uint64_t value,
- int is_persistent)
-{
- struct StatisticsIteratorContext *stats_ctx;
-
- if (dhtlog_handle != NULL)
- dhtlog_handle->add_generic_stat (peer, name, subsystem, value);
- if (GNUNET_CONTAINER_multihashmap_contains (stats_map, &peer->hashPubKey))
- {
- stats_ctx =
- GNUNET_CONTAINER_multihashmap_get (stats_map, &peer->hashPubKey);
- }
- else
- {
- stats_ctx = GNUNET_malloc (sizeof (struct StatisticsIteratorContext));
- stats_ctx->peer = peer;
- GNUNET_CONTAINER_multihashmap_put (stats_map, &peer->hashPubKey, stats_ctx,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- }
- GNUNET_assert (stats_ctx != NULL);
-
- if (strcmp (name, STAT_ROUTES) == 0)
- stats_ctx->stat_routes = value;
- else if (strcmp (name, STAT_ROUTE_FORWARDS) == 0)
- stats_ctx->stat_route_forwards = value;
- else if (strcmp (name, STAT_RESULTS) == 0)
- stats_ctx->stat_results = value;
- else if (strcmp (name, STAT_RESULTS_TO_CLIENT) == 0)
- stats_ctx->stat_results_to_client = value;
- else if (strcmp (name, STAT_RESULT_FORWARDS) == 0)
- stats_ctx->stat_result_forwards = value;
- else if (strcmp (name, STAT_GETS) == 0)
- stats_ctx->stat_gets = value;
- else if (strcmp (name, STAT_PUTS) == 0)
- stats_ctx->stat_puts = value;
- else if (strcmp (name, STAT_PUTS_INSERTED) == 0)
- stats_ctx->stat_puts_inserted = value;
- else if (strcmp (name, STAT_FIND_PEER) == 0)
- stats_ctx->stat_find_peer = value;
- else if (strcmp (name, STAT_FIND_PEER_START) == 0)
- stats_ctx->stat_find_peer_start = value;
- else if (strcmp (name, STAT_GET_START) == 0)
- stats_ctx->stat_get_start = value;
- else if (strcmp (name, STAT_PUT_START) == 0)
- stats_ctx->stat_put_start = value;
- else if (strcmp (name, STAT_FIND_PEER_REPLY) == 0)
- stats_ctx->stat_find_peer_reply = value;
- else if (strcmp (name, STAT_GET_REPLY) == 0)
- stats_ctx->stat_get_reply = value;
- else if (strcmp (name, STAT_FIND_PEER_ANSWER) == 0)
- stats_ctx->stat_find_peer_answer = value;
- else if (strcmp (name, STAT_GET_RESPONSE_START) == 0)
- stats_ctx->stat_get_response_start = value;
-
- return GNUNET_OK;
-}
-
-/**
- * Connect to statistics service for each peer and get the appropriate
- * dht statistics for safe keeping.
- */
-static void
-log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- stats_map = GNUNET_CONTAINER_multihashmap_create (num_peers);
- fprintf (stderr, "Starting statistics logging\n");
- GNUNET_TESTING_get_statistics (pg, &stats_finished, &stats_handle, NULL);
-}
-
-/**
- * Connect to all peers in the peer group and iterate over their
- * connections.
- */
-static void
-capture_current_topology (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TopologyIteratorContext *topo_ctx = cls;
-
- dhtlog_handle->insert_topology (0);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
- GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
-}
-
-/**
- * Check if the get_handle is being used, if so stop the request. Either
- * way, schedule the end_badly_cont function which actually shuts down the
- * test.
- */
-static void
-end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n",
- (char *) cls);
-
- struct TestPutContext *test_put = all_puts;
- struct TestGetContext *test_get = all_gets;
-
- while (test_put != NULL)
- {
- if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (test_put->disconnect_task);
- if (test_put->dht_handle != NULL)
- GNUNET_DHT_disconnect (test_put->dht_handle);
- test_put = test_put->next;
- }
-
- while (test_get != NULL)
- {
- if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (test_get->disconnect_task);
- if (test_get->get_handle != NULL)
- GNUNET_DHT_get_stop (test_get->get_handle);
- if (test_get->dht_handle != NULL)
- GNUNET_DHT_disconnect (test_get->dht_handle);
- test_get = test_get->next;
- }
-
- GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
-
- if (dhtlog_handle != NULL)
- {
- fprintf (stderr, "Update trial endtime\n");
- dhtlog_handle->update_trial (gets_completed);
- GNUNET_DHTLOG_disconnect (dhtlog_handle);
- dhtlog_handle = NULL;
- }
-
- if (hostkey_meter != NULL)
- free_meter (hostkey_meter);
- if (peer_start_meter != NULL)
- free_meter (peer_start_meter);
- if (peer_connect_meter != NULL)
- free_meter (peer_connect_meter);
- if (put_meter != NULL)
- free_meter (put_meter);
- if (get_meter != NULL)
- free_meter (get_meter);
-
- ok = 1;
-}
-
-/**
- * Forward declaration.
- */
-static void
-do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-/**
- * Forward declaration.
- */
-static void
-do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-/**
- * Iterator over hash map entries.
- *
- * @param cls closure
- * @param key current key code
- * @param value value in the hash map
- * @return GNUNET_YES if we should continue to
- * iterate,
- * GNUNET_NO if not.
- */
-static int
-remove_peer_count (void *cls, const GNUNET_HashCode * key, void *value)
-{
- struct PeerCount *peer_count = value;
-
- GNUNET_CONTAINER_heap_remove_node (peer_count->heap_node);
- GNUNET_free (peer_count);
-
- return GNUNET_YES;
-}
-
-/**
- * Connect to all peers in the peer group and iterate over their
- * connections.
- */
-static void
-count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct FindPeerContext *find_peer_context = cls;
-
- find_peer_context->previous_peers = find_peer_context->current_peers;
- find_peer_context->current_peers = 0;
- GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb,
- find_peer_context);
-}
-
-static void
-decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestFindPeer *test_find_peer = cls;
-
- GNUNET_assert (test_find_peer->find_peer_context->outstanding > 0);
- test_find_peer->find_peer_context->outstanding--;
- test_find_peer->find_peer_context->total--;
- if (0 == test_find_peer->find_peer_context->total)
- {
- GNUNET_SCHEDULER_add_now (&count_new_peers,
- test_find_peer->find_peer_context);
- }
- GNUNET_free (test_find_peer);
-}
-
-/**
- * A find peer request has been sent to the server, now we will schedule a task
- * to wait the appropriate time to allow the request to go out and back.
- *
- * @param cls closure - a TestFindPeer struct
- * @param tc context the task is being called with
- */
-static void
-handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestFindPeer *test_find_peer = cls;
-
- GNUNET_DHT_disconnect (test_find_peer->dht_handle);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
- (find_peer_delay, 2), &decrement_find_peers,
- test_find_peer);
-}
-
-static void
-send_find_peer_request (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestFindPeer *test_find_peer = cls;
-
- if (test_find_peer->find_peer_context->outstanding >
- max_outstanding_find_peers)
- {
- GNUNET_SCHEDULER_add_delayed (find_peer_offset, &send_find_peer_request,
- test_find_peer);
- return;
- }
-
- test_find_peer->find_peer_context->outstanding++;
- if (GNUNET_TIME_absolute_get_remaining
- (test_find_peer->find_peer_context->endtime).rel_value == 0)
- {
- GNUNET_SCHEDULER_add_now (&decrement_find_peers, test_find_peer);
- return;
- }
-
- test_find_peer->dht_handle =
- GNUNET_DHT_connect (test_find_peer->daemon->cfg, 1);
- GNUNET_assert (test_find_peer->dht_handle != NULL);
- GNUNET_DHT_find_peers (test_find_peer->dht_handle, &handle_find_peer_sent,
- test_find_peer);
-}
-
-/**
- * Add a connection to the find_peer_context given. This may
- * be complete overkill, but allows us to choose the peers with
- * the least connections to initiate find peer requests from.
- */
-static void
-add_new_connection (struct FindPeerContext *find_peer_context,
- const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second)
-{
- struct PeerCount *first_count;
- struct PeerCount *second_count;
-
- if (GNUNET_CONTAINER_multihashmap_contains
- (find_peer_context->peer_hash, &first->hashPubKey))
- {
- first_count =
- GNUNET_CONTAINER_multihashmap_get (find_peer_context->peer_hash,
- &first->hashPubKey);
- GNUNET_assert (first_count != NULL);
- first_count->count++;
- GNUNET_CONTAINER_heap_update_cost (find_peer_context->peer_min_heap,
- first_count->heap_node,
- first_count->count);
- }
- else
- {
- first_count = GNUNET_malloc (sizeof (struct PeerCount));
- first_count->count = 1;
- memcpy (&first_count->peer_id, first, sizeof (struct GNUNET_PeerIdentity));
- first_count->heap_node =
- GNUNET_CONTAINER_heap_insert (find_peer_context->peer_min_heap,
- first_count, first_count->count);
- GNUNET_CONTAINER_multihashmap_put (find_peer_context->peer_hash,
- &first->hashPubKey, first_count,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- }
-
- if (GNUNET_CONTAINER_multihashmap_contains
- (find_peer_context->peer_hash, &second->hashPubKey))
- {
- second_count =
- GNUNET_CONTAINER_multihashmap_get (find_peer_context->peer_hash,
- &second->hashPubKey);
- GNUNET_assert (second_count != NULL);
- second_count->count++;
- GNUNET_CONTAINER_heap_update_cost (find_peer_context->peer_min_heap,
- second_count->heap_node,
- second_count->count);
- }
- else
- {
- second_count = GNUNET_malloc (sizeof (struct PeerCount));
- second_count->count = 1;
- memcpy (&second_count->peer_id, second,
- sizeof (struct GNUNET_PeerIdentity));
- second_count->heap_node =
- GNUNET_CONTAINER_heap_insert (find_peer_context->peer_min_heap,
- second_count, second_count->count);
- GNUNET_CONTAINER_multihashmap_put (find_peer_context->peer_hash,
- &second->hashPubKey, second_count,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- }
-}
-
-static void
-did_connect (void *cls, const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second, uint32_t distance,
- const struct GNUNET_CONFIGURATION_Handle *first_cfg,
- const struct GNUNET_CONFIGURATION_Handle *second_cfg,
- struct GNUNET_TESTING_Daemon *first_daemon,
- struct GNUNET_TESTING_Daemon *second_daemon, const char *emsg)
-{
- struct FindPeerContext *find_peer_context = cls;
-
- find_peer_context->cc = NULL;
-}
-
-/**
- * Iterate over min heap of connections per peer. For any
- * peer that has 0 connections, attempt to connect them to
- * some random peer.
- *
- * @param cls closure a struct FindPeerContext
- * @param node internal node of the heap
- * @param element value stored, a struct PeerCount
- * @param cost cost associated with the node
- * @return GNUNET_YES if we should continue to iterate,
- * GNUNET_NO if not.
- */
-static int
-iterate_min_heap_peers (void *cls, struct GNUNET_CONTAINER_HeapNode *node,
- void *element, GNUNET_CONTAINER_HeapCostType cost)
-{
- struct FindPeerContext *find_peer_context = cls;
- struct PeerCount *peer_count = element;
- struct GNUNET_TESTING_Daemon *d1;
- struct GNUNET_TESTING_Daemon *d2;
- struct GNUNET_TIME_Relative timeout;
-
- if (cost == 0)
- {
- d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
- GNUNET_assert (d1 != NULL);
- d2 = d1;
- while ((d2 == d1) ||
- (GNUNET_YES != GNUNET_TESTING_test_daemon_running (d2)))
- {
- d2 = GNUNET_TESTING_daemon_get (pg,
- GNUNET_CRYPTO_random_u32
- (GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
- GNUNET_assert (d2 != NULL);
- }
-
- /** Just try to connect the peers, don't worry about callbacks, etc. **/
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Peer %s has 0 connections. Trying to connect to %s...\n",
- GNUNET_i2s (&peer_count->peer_id), d2->shortname);
- timeout =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- DEFAULT_CONNECT_TIMEOUT);
- if (GNUNET_TIME_relative_to_absolute (timeout).abs_value >
- find_peer_context->endtime.abs_value)
- {
- timeout = GNUNET_TIME_absolute_get_remaining (find_peer_context->endtime);
- }
- if (NULL != find_peer_context->cc)
- GNUNET_TESTING_daemons_connect_cancel (find_peer_context->cc);
- find_peer_context->cc =
- GNUNET_TESTING_daemons_connect (d1, d2, timeout,
- DEFAULT_RECONNECT_ATTEMPTS, GNUNET_YES,
- &did_connect, find_peer_context);
- }
- if (GNUNET_TIME_absolute_get_remaining (find_peer_context->endtime).rel_value
- > 0)
- return GNUNET_YES;
- return GNUNET_NO;
-}
-
-/**
- * Forward declaration.
- */
-static void
-schedule_churn_find_peer_requests (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext
- *tc);
-
-/**
- * Callback for iterating over all the peer connections of a peer group.
- * Used after we have churned on some peers to find which ones have zero
- * connections so we can make them issue find peer requests.
- */
-static void
-count_peers_churn_cb (void *cls, const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second,
- const char *emsg)
-{
- struct FindPeerContext *find_peer_context = cls;
- struct TopologyIteratorContext *topo_ctx;
- struct PeerCount *peer_count;
-
- if ((first != NULL) && (second != NULL))
- {
- add_new_connection (find_peer_context, first, second);
- find_peer_context->current_peers++;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Peer count finished (%u connections)\n",
- find_peer_context->current_peers);
- peer_count = GNUNET_CONTAINER_heap_peek (find_peer_context->peer_min_heap);
- GNUNET_assert (peer_count != NULL);
- /* WAIT. When peers are churned they will come back with their peers (at least in peerinfo), because the HOSTS file doesn't likely get removed. CRAP. */
- /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
- /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
- * then some peers will end up connected.
- *
- * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
- * connect to. Of course, if they are blacklisted from that peer they won't be able to connect, so we will have to keep trying
- * until they get a peer.
- */
- /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
- /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
-
- /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
-
- /**
- * Okay, so here's how this *should* work now.
- *
- * 1. We check the min heap for any peers that have 0 connections.
- * a. If any are found, we iterate over the heap and just randomly
- * choose another peer and ask testing to please connect the two.
- * This takes care of the case that a peer just randomly joins the
- * network. However, if there are strict topology restrictions
- * (imagine a ring) choosing randomly most likely won't help.
- * We make sure the connection attempt doesn't take longer than
- * the total timeout, but don't care too much about the result.
- * b. After that, we still schedule the find peer requests (concurrently
- * with the connect attempts most likely). This handles the case
- * that the DHT iterates over peerinfo and just needs to try to send
- * a message to get connected. This should handle the case that the
- * topology is very strict.
- *
- * 2. If all peers have > 0 connections, we still send find peer requests
- * as long as possible (until timeout is reached) to help out those
- * peers that were newly churned and need more connections. This is because
- * once all new peers have established a single connection, they won't be
- * well connected.
- *
- * 3. Once we reach the timeout, we can do no more. We must schedule the
- * next iteration of get requests regardless of connections that peers
- * may or may not have.
- *
- * Caveat: it would be nice to get peers to take data offline with them and
- * come back with it (or not) based on the testing framework. The
- * same goes for remembering previous connections, but putting either
- * into the general testing churn options seems like overkill because
- * these are very specialized cases.
- */
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Out of %u peers, fewest connections is %d\n",
- GNUNET_CONTAINER_heap_get_size
- (find_peer_context->peer_min_heap), peer_count->count);
- if ((peer_count->count == 0) &&
- (GNUNET_TIME_absolute_get_remaining
- (find_peer_context->endtime).rel_value > 0))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
- GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap,
- &iterate_min_heap_peers,
- find_peer_context);
- GNUNET_SCHEDULER_add_now (&schedule_churn_find_peer_requests,
- find_peer_context);
- }
- else if ((GNUNET_TIME_absolute_get_remaining
- (find_peer_context->endtime).rel_value > 0) &&
- (find_peer_context->last_sent != 0))
- {
- GNUNET_SCHEDULER_add_now (&schedule_churn_find_peer_requests,
- find_peer_context);
- }
- else
- {
- GNUNET_CONTAINER_multihashmap_iterate (find_peer_context->peer_hash,
- &remove_peer_count,
- find_peer_context);
- GNUNET_CONTAINER_multihashmap_destroy (find_peer_context->peer_hash);
- GNUNET_CONTAINER_heap_destroy (find_peer_context->peer_min_heap);
- if (NULL != find_peer_context->cc)
- GNUNET_TESTING_daemons_connect_cancel (find_peer_context->cc);
- GNUNET_free (find_peer_context);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Churn round %u of %llu finished, scheduling next GET round.\n",
- current_churn_round, churn_rounds);
- if (dhtlog_handle != NULL)
- {
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- topo_ctx->cont = &do_get;
- topo_ctx->cls = all_gets;
- topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add
- (GNUNET_TIME_relative_add
- (DEFAULT_GET_TIMEOUT,
- all_get_timeout),
- DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
- &end_badly,
- "from do gets (count_peers_churn_cb)");
- GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
- }
- else
- {
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add
- (GNUNET_TIME_relative_add
- (DEFAULT_GET_TIMEOUT,
- all_get_timeout),
- DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
- &end_badly,
- "from do gets (count_peers_churn_cb)");
- GNUNET_SCHEDULER_add_now (&do_get, all_gets);
- }
- }
- }
-}
-
-/**
- * Set up a single find peer request for each peer in the topology. Do this
- * until the settle time is over, limited by the number of outstanding requests
- * and the time allowed for each one!
- */
-static void
-schedule_churn_find_peer_requests (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext
- *tc)
-{
- struct FindPeerContext *find_peer_ctx = cls;
- struct TestFindPeer *test_find_peer;
- struct PeerCount *peer_count;
- uint32_t i;
-
- if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
- find_peer_ctx->total = 1;
- else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers <
- MIN_FIND_PEER_CUTOFF)
- find_peer_ctx->total = find_peer_ctx->total / 2;
- else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
- find_peer_ctx->total =
- find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
- else
- find_peer_ctx->total = find_peer_ctx->last_sent * 4;
-
- if (find_peer_ctx->total > max_outstanding_find_peers)
- find_peer_ctx->total = max_outstanding_find_peers;
-
- find_peer_ctx->last_sent = find_peer_ctx->total;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Sending %u find peer messages (after churn)\n",
- find_peer_ctx->total);
-
- if (find_peer_ctx->total > 0)
- find_peer_offset =
- GNUNET_TIME_relative_divide (find_peer_delay, find_peer_ctx->total);
- else
- {
- find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
- find_peer_ctx->current_peers = 0;
- GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
- }
-
- for (i = 0; i < find_peer_ctx->total; i++)
- {
- test_find_peer = GNUNET_malloc (sizeof (struct TestFindPeer));
- /* If we have sent requests, choose peers with a low number of connections to send requests from */
- peer_count =
- GNUNET_CONTAINER_heap_remove_root (find_peer_ctx->peer_min_heap);
- GNUNET_assert (peer_count != NULL);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Sending find peer request from peer with %u connections\n",
- peer_count->count);
- GNUNET_CONTAINER_multihashmap_remove (find_peer_ctx->peer_hash,
- &peer_count->peer_id.hashPubKey,
- peer_count);
- test_find_peer->daemon =
- GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
- GNUNET_assert (test_find_peer->daemon != NULL);
- test_find_peer->find_peer_context = find_peer_ctx;
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (find_peer_offset, i),
- &send_find_peer_request, test_find_peer);
- }
-
- if ((find_peer_ctx->peer_hash == NULL) &&
- (find_peer_ctx->peer_min_heap == NULL))
- {
- find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create (num_peers);
- find_peer_ctx->peer_min_heap =
- GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- }
- else
- {
- GNUNET_CONTAINER_multihashmap_iterate (find_peer_ctx->peer_hash,
- &remove_peer_count, find_peer_ctx);
- GNUNET_CONTAINER_multihashmap_destroy (find_peer_ctx->peer_hash);
- find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create (num_peers);
- }
-
- GNUNET_assert (0 ==
- GNUNET_CONTAINER_multihashmap_size (find_peer_ctx->peer_hash));
- GNUNET_assert (0 ==
- GNUNET_CONTAINER_heap_get_size (find_peer_ctx->peer_min_heap));
-}
-
-static void
-schedule_churn_get_topology (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct FindPeerContext *find_peer_context = cls;
-
- GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
-}
-
-/**
- * Called when churning of the topology has finished.
- *
- * @param cls closure unused
- * @param emsg NULL on success, or a printable error on failure
- */
-static void
-churn_complete (void *cls, const char *emsg)
-{
- struct FindPeerContext *find_peer_context = cls;
- struct PeerCount *peer_count;
- unsigned int i;
- struct GNUNET_TESTING_Daemon *temp_daemon;
- struct TopologyIteratorContext *topo_ctx;
- struct GNUNET_TIME_Relative calc_timeout;
- int count_added;
-
- if (emsg != NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Ending test, churning of peers failed with error `%s'", emsg);
- GNUNET_SCHEDULER_add_now (&end_badly, (void *) emsg);
- return;
- }
-
- /**
- * If we switched any peers on, we have to somehow force connect the new peer to
- * SOME bootstrap peer in the network. First schedule a task to find all peers
- * with no connections, then choose a random peer for each and connect them.
- */
- if (find_peer_context != NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "We have churned on some peers, so we must schedule find peer requests for them!\n");
- count_added = 0;
- for (i = 0; i < num_peers; i++)
- {
- temp_daemon = GNUNET_TESTING_daemon_get (pg, i);
- if (GNUNET_YES == GNUNET_TESTING_test_daemon_running (temp_daemon))
- {
- peer_count = GNUNET_malloc (sizeof (struct PeerCount));
- memcpy (&peer_count->peer_id, &temp_daemon->id,
- sizeof (struct GNUNET_PeerIdentity));
- GNUNET_assert (peer_count->count == 0);
- peer_count->heap_node =
- GNUNET_CONTAINER_heap_insert (find_peer_context->peer_min_heap,
- peer_count, peer_count->count);
- GNUNET_CONTAINER_multihashmap_put (find_peer_context->peer_hash,
- &temp_daemon->id.hashPubKey,
- peer_count,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- count_added++;
- }
- }
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Added %d peers to heap, total size %d\n", count_added,
- GNUNET_CONTAINER_heap_get_size
- (find_peer_context->peer_min_heap));
- GNUNET_SCHEDULER_add_delayed (DEFAULT_PEER_DISCONNECT_TIMEOUT,
- &schedule_churn_get_topology,
- find_peer_context);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Only churned off peers, no find peer requests, scheduling more gets (after allowing time for peers to disconnect properly!)...\n");
- if (dhtlog_handle != NULL)
- {
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- topo_ctx->cont = &do_get;
- topo_ctx->cls = all_gets;
- topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- calc_timeout =
- GNUNET_TIME_relative_add (DEFAULT_GET_TIMEOUT, all_get_timeout);
- calc_timeout =
- GNUNET_TIME_relative_add (calc_timeout,
- DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
- calc_timeout =
- GNUNET_TIME_relative_add (calc_timeout,
- DEFAULT_PEER_DISCONNECT_TIMEOUT);
- die_task =
- GNUNET_SCHEDULER_add_delayed (calc_timeout, &end_badly,
- "from do gets (churn_complete)");
- GNUNET_SCHEDULER_add_delayed (DEFAULT_PEER_DISCONNECT_TIMEOUT,
- &capture_current_topology, topo_ctx);
- dhtlog_handle->insert_round (DHT_ROUND_GET, rounds_finished);
- }
- else
- {
- calc_timeout =
- GNUNET_TIME_relative_add (DEFAULT_GET_TIMEOUT, all_get_timeout);
- calc_timeout =
- GNUNET_TIME_relative_add (calc_timeout,
- DEFAULT_PEER_DISCONNECT_TIMEOUT);
- die_task =
- GNUNET_SCHEDULER_add_delayed (calc_timeout, &end_badly,
- "from do gets (churn_complete)");
- GNUNET_SCHEDULER_add_delayed (DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get,
- all_gets);
- }
- }
-}
-
-/**
- * Decide how many peers to turn on or off in this round, make sure the
- * numbers actually make sense, then do so. This function sets in motion
- * churn, find peer requests for newly joined peers, and issuing get
- * requests once the new peers have done so.
- *
- * @param cls closure (unused)
- * @param tc task context (unused)
- */
-static void
-churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- unsigned int count_running;
- unsigned int churn_up;
- unsigned int churn_down;
- struct GNUNET_TIME_Relative timeout;
- struct FindPeerContext *find_peer_context;
-
- churn_up = churn_down = 0;
- count_running = GNUNET_TESTING_daemons_running (pg);
- if (count_running > churn_array[current_churn_round])
- churn_down = count_running - churn_array[current_churn_round];
- else if (count_running < churn_array[current_churn_round])
- churn_up = churn_array[current_churn_round] - count_running;
- else
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Not churning any peers, topology unchanged.\n");
-
- if (churn_up > num_peers - count_running)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Churn file specified %u peers (up); only have %u!",
- churn_array[current_churn_round], num_peers);
- churn_up = num_peers - count_running;
- }
- else if (churn_down > count_running)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Churn file specified %u peers (down); only have %u!",
- churn_array[current_churn_round], count_running);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "This will leave NO peers running (mistake in churn configuration?)!");
- churn_down = count_running;
- }
- //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
- //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
- timeout = GNUNET_TIME_relative_multiply (DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
- find_peer_context = NULL;
- if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
- {
- find_peer_context = GNUNET_malloc (sizeof (struct FindPeerContext));
- find_peer_context->count_peers_cb = &count_peers_churn_cb;
- find_peer_context->previous_peers = 0;
- find_peer_context->current_peers = 0;
- find_peer_context->endtime = GNUNET_TIME_relative_to_absolute (timeout);
- find_peer_context->peer_hash =
- GNUNET_CONTAINER_multihashmap_create (num_peers);
- find_peer_context->peer_min_heap =
- GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- }
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
- churn_array[current_churn_round], count_running, churn_up,
- churn_down);
- GNUNET_TESTING_daemons_churn (pg, NULL, churn_down, churn_up, timeout,
- &churn_complete, find_peer_context);
- current_churn_round++;
-}
-
-/**
- * Task to release DHT handle associated with GET request.
- */
-static void
-get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestGetContext *test_get = cls;
- struct TopologyIteratorContext *topo_ctx;
-
- /* The dht_handle may be null if this get was scheduled from a down peer */
- if (test_get->dht_handle != NULL)
- {
- GNUNET_DHT_disconnect (test_get->dht_handle);
- outstanding_gets--; /* GET is really finished */
- test_get->dht_handle = NULL;
- }
-
- /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
- if (get_from_same == GNUNET_NO)
- {
- test_get->uid =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
- test_get->daemon =
- GNUNET_TESTING_daemon_get (pg,
- GNUNET_CRYPTO_random_u32
- (GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
- }
-
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n",
- gets_completed, gets_failed);
-#endif
- update_meter (get_meter);
- if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
- {
- fprintf (stderr,
- "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n",
- gets_completed, gets_failed);
- if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
- dhtlog_handle->insert_round_details (DHT_ROUND_GET, rounds_finished,
- num_gets, gets_completed);
- GNUNET_SCHEDULER_cancel (die_task);
- reset_meter (put_meter);
- reset_meter (get_meter);
- if ((target_completions > 0) && (gets_completed > target_completions))
- fprintf (stderr, "Ending test early due to GET success!\n");
- /**
- * Handle all cases:
- * 1) Testing is completely finished, call the topology iteration dealy and die
- * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
- * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
- */
- if ((rounds_finished == total_rounds - 1) || ((target_completions > 0) && (gets_completed > target_completions))) /* Everything is finished, end testing */
- {
- if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
- {
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- topo_ctx->cont = &log_dht_statistics;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
- }
- else
- GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
- }
- else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Current churn round %u, real round %u, scheduling next round of churn.\n",
- current_churn_round, rounds_finished + 1);
- gets_completed = 0;
- gets_failed = 0;
-
- if (dhtlog_handle != NULL)
- dhtlog_handle->insert_round (DHT_ROUND_CHURN, rounds_finished);
-
- GNUNET_SCHEDULER_add_now (&churn_peers, NULL);
- }
- else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
- {
- rounds_finished++;
- gets_completed = 0;
- gets_failed = 0;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Round %u of %llu finished, scheduling next round.\n",
- rounds_finished, total_rounds);
-
- /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
- if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
- {
- if (dhtlog_handle != NULL)
- dhtlog_handle->insert_round (DHT_ROUND_GET, rounds_finished);
-
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add
- (GNUNET_TIME_relative_add
- (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- round_delay), all_get_timeout),
- DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
- &end_badly,
- "from do gets (next round)");
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, round_delay),
- &do_get, all_gets);
- }
- else
- {
- if (dhtlog_handle != NULL)
- dhtlog_handle->insert_round (DHT_ROUND_NORMAL, rounds_finished);
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add
- (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- round_delay),
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- num_puts * 2)), &end_badly,
- "from do puts");
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, round_delay),
- &do_put, all_puts);
- }
- }
- }
-}
-
-/**
- * Task to release get handle.
- */
-static void
-get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestGetContext *test_get = cls;
-
- if ((tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT) != 0)
- gets_failed++;
- else
- cumulative_successful_gets++;
-
- GNUNET_assert (test_get->get_handle != NULL);
- GNUNET_DHT_get_stop (test_get->get_handle);
- test_get->get_handle = NULL;
- test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
-}
-
-/**
- * Iterator called if the GET request initiated returns a response.
- *
- * @param cls closure
- * @param exp when will this value expire
- * @param key key of the result
- * @param get_path NULL-terminated array of pointers
- * to the peers on reverse GET path (or NULL if not recorded)
- * @param put_path NULL-terminated array of pointers
- * to the peers on the PUT path (or NULL if not recorded)
- * @param type type of the result
- * @param size number of bytes in data
- * @param data pointer to the result data
- */
-static void
-get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
- const GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity *const *get_path,
- const struct GNUNET_PeerIdentity *const *put_path,
- enum GNUNET_BLOCK_Type type, size_t size, const void *data)
-{
- struct TestGetContext *test_get = cls;
-
- if (test_get->succeeded == GNUNET_YES)
- return; /* Get has already been successful, probably ending now */
-
- if (0 != memcmp (&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data)))) */
- {
- gets_completed++;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Key or data is not the same as was inserted!\n");
- }
- else
- {
- gets_completed++;
- test_get->succeeded = GNUNET_YES;
- }
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
-#endif
- GNUNET_SCHEDULER_cancel (test_get->disconnect_task);
- GNUNET_SCHEDULER_add_continuation (&get_stop_task, test_get,
- GNUNET_SCHEDULER_REASON_PREREQ_DONE);
-}
-
-/**
- * Set up some data, and call API PUT function
- */
-static void
-do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestGetContext *test_get = cls;
-
- if (num_gets == 0)
- {
- GNUNET_SCHEDULER_cancel (die_task);
- GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
- }
-
- if (test_get == NULL)
- return; /* End of the list */
-
- /* Set this here in case we are re-running gets */
- test_get->succeeded = GNUNET_NO;
-
- if (GNUNET_YES != GNUNET_TESTING_test_daemon_running (test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Peer we should issue get request from is down, skipping.\n");
- gets_failed++;
- GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
- GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
- return;
- }
-
- /* Check if more gets are outstanding than should be */
- if (outstanding_gets > max_outstanding_gets)
- {
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get,
- test_get);
- return;
- }
-
- /* Connect to the first peer's DHT */
- test_get->dht_handle = GNUNET_DHT_connect (test_get->daemon->cfg, 10);
- GNUNET_assert (test_get->dht_handle != NULL);
- outstanding_gets++;
-
- cumulative_num_gets++;
- /* Insert the data at the first peer */
- test_get->get_handle =
- GNUNET_DHT_get_start (test_get->dht_handle, get_delay,
- GNUNET_BLOCK_TYPE_TEST, &known_keys[test_get->uid],
- get_replication, GNUNET_DHT_RO_NONE, NULL, 0, NULL,
- 0, &get_result_iterator, test_get);
-
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
- test_get->uid, test_get->daemon->shortname);
-#endif
- test_get->disconnect_task =
- GNUNET_SCHEDULER_add_delayed (get_timeout, &get_stop_task, test_get);
-
- /* Schedule the next request in the linked list of get requests */
- GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
-}
-
-/**
- * Called when the PUT request has been transmitted to the DHT service.
- * Schedule the GET request for some time in the future.
- */
-static void
-put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestPutContext *test_put = cls;
- struct TopologyIteratorContext *topo_ctx;
-
- outstanding_puts--;
- puts_completed++;
-
- if ((tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT) != 0)
- fprintf (stderr, "PUT Request failed!\n");
-
- /* Reset the daemon (which peer to insert at) for later put request iterations */
- if (replicate_same == GNUNET_NO)
- test_put->daemon =
- GNUNET_TESTING_daemon_get (pg,
- GNUNET_CRYPTO_random_u32
- (GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
-
- GNUNET_SCHEDULER_cancel (test_put->disconnect_task);
- test_put->disconnect_task =
- GNUNET_SCHEDULER_add_now (&put_disconnect_task, test_put);
- if (GNUNET_YES == update_meter (put_meter))
- {
- GNUNET_assert (outstanding_puts == 0);
- GNUNET_SCHEDULER_cancel (die_task);
- if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
- {
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- topo_ctx->cont = &do_get;
- topo_ctx->cls = all_gets;
- topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add
- (GNUNET_TIME_relative_add
- (DEFAULT_GET_TIMEOUT, all_get_timeout),
- DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
- &end_badly,
- "from do gets (put finished)");
- GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
- }
- else
- {
- fprintf (stderr, "Scheduling die task (put finished)\n");
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add
- (DEFAULT_GET_TIMEOUT, all_get_timeout),
- &end_badly,
- "from do gets (put finished)");
- GNUNET_SCHEDULER_add_delayed (DEFAULT_GET_TIMEOUT, &do_get, all_gets);
- }
- return;
- }
-}
-
-/**
- * Set up some data, and call API PUT function
- */
-static void
-do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TestPutContext *test_put = cls;
- char data[test_data_size]; /* Made up data to store */
- uint32_t rand;
- int i;
-
- if (test_put == NULL)
- return; /* End of list */
-
- if (GNUNET_YES != GNUNET_TESTING_test_daemon_running (test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Peer we should issue put request at is down, skipping.\n");
- update_meter (put_meter);
- GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
- return;
- }
-
- for (i = 0; i < sizeof (data); i++)
- {
- memset (&data[i],
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX),
- 1);
- }
-
- if (outstanding_puts > max_outstanding_puts)
- {
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put,
- test_put);
- return;
- }
-
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
- test_put->uid, test_put->daemon->shortname);
-#endif
- test_put->dht_handle = GNUNET_DHT_connect (test_put->daemon->cfg, 10);
-
- GNUNET_assert (test_put->dht_handle != NULL);
- outstanding_puts++;
- GNUNET_DHT_put (test_put->dht_handle, &known_keys[test_put->uid],
- put_replication, GNUNET_DHT_RO_NONE, GNUNET_BLOCK_TYPE_TEST,
- sizeof (data), data, GNUNET_TIME_UNIT_FOREVER_ABS, put_delay,
- &put_finished, test_put);
- test_put->disconnect_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_get_forever (),
- &put_disconnect_task, test_put);
- rand = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 2);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, rand), &do_put,
- test_put->next);
-}
-
-static void
-schedule_find_peer_requests (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-#if HAVE_MALICIOUS
-static void
-setup_malicious_peers (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc);
-#endif
-
-/**
- * Given a number of total peers and a bucket size, estimate the number of
- * connections in a perfect kademlia topology.
- */
-static unsigned int
-connection_estimate (unsigned int peer_count, unsigned int bucket_size)
-{
- unsigned int i;
- unsigned int filled;
-
- i = num_peers;
-
- filled = 0;
- while (i >= bucket_size)
- {
- filled++;
- i = i / 2;
- }
- filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
- return filled * bucket_size * peer_count;
-
-}
-
-/**
- * Callback for iterating over all the peer connections of a peer group.
- */
-static void
-count_peers_cb (void *cls, const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second, const char *emsg)
-{
- struct FindPeerContext *find_peer_context = cls;
-
- if ((first != NULL) && (second != NULL))
- {
- add_new_connection (find_peer_context, first, second);
- find_peer_context->current_peers++;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
- find_peer_context->current_peers,
- find_peer_context->current_peers -
- find_peer_context->previous_peers,
- connection_estimate (num_peers, DEFAULT_BUCKET_SIZE),
- target_total_connections);
-
- if ((find_peer_context->last_sent < 8) ||
- ((find_peer_context->current_peers <
- 2 * connection_estimate (num_peers, DEFAULT_BUCKET_SIZE)) &&
- (GNUNET_TIME_absolute_get_remaining
- (find_peer_context->endtime).rel_value > 0) &&
- (find_peer_context->current_peers < target_total_connections)))
- {
- GNUNET_SCHEDULER_add_now (&schedule_find_peer_requests,
- find_peer_context);
- }
- else
- {
- GNUNET_CONTAINER_multihashmap_iterate (find_peer_context->peer_hash,
- &remove_peer_count,
- find_peer_context);
- GNUNET_CONTAINER_multihashmap_destroy (find_peer_context->peer_hash);
- GNUNET_CONTAINER_heap_destroy (find_peer_context->peer_min_heap);
- if (NULL != find_peer_context->cc)
- GNUNET_TESTING_daemons_connect_cancel (find_peer_context->cc);
- GNUNET_free (find_peer_context);
- fprintf (stderr, "Not sending any more find peer requests.\n");
-
-#if HAVE_MALICIOUS
- if (GNUNET_YES == malicious_after_settle)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "calling setup_malicious_peers\n");
- GNUNET_SCHEDULER_add_now (&setup_malicious_peers, NULL);
- }
-#endif
- }
- }
-}
-
-/**
- * Set up a single find peer request for each peer in the topology. Do this
- * until the settle time is over, limited by the number of outstanding requests
- * and the time allowed for each one!
- */
-static void
-schedule_find_peer_requests (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct FindPeerContext *find_peer_ctx = cls;
- struct TestFindPeer *test_find_peer;
- struct PeerCount *peer_count;
- uint32_t i;
- uint32_t random;
-
- if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
- find_peer_ctx->total = 1;
- else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
- find_peer_ctx->total =
- find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
- else
- find_peer_ctx->total = find_peer_ctx->last_sent * 2;
-
- if (find_peer_ctx->total > max_outstanding_find_peers)
- find_peer_ctx->total = max_outstanding_find_peers;
-
- if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
- find_peer_ctx->total = num_peers;
-
- find_peer_ctx->last_sent = find_peer_ctx->total;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Sending %u find peer messages (goal at least %u connections)\n",
- find_peer_ctx->total, target_total_connections);
-
- find_peer_offset =
- GNUNET_TIME_relative_divide (find_peer_delay, find_peer_ctx->total);
- for (i = 0; i < find_peer_ctx->total; i++)
- {
- test_find_peer = GNUNET_malloc (sizeof (struct TestFindPeer));
- /* If we haven't sent any requests yet, choose random peers */
- /* Also choose random in _half_ of all cases, so we don't
- * get stuck choosing topologically restricted peers with
- * few connections that will never be able to find any new
- * peers! */
- if ((find_peer_ctx->previous_peers == 0) || (i % 2 == 0))
- {
- /**
- * Attempt to spread find peer requests across even sections of the peer address
- * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
- * each time, then offset it by a randomish value.
- *
- * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
- * will be between 0 - 10, second between 10 - 20, etc.
- */
- random = (num_peers / find_peer_ctx->total) * i;
- random =
- random + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
- (num_peers /
- find_peer_ctx->total));
- if (random >= num_peers)
- {
- random = random - num_peers;
- }
-#if REAL_RANDOM
- random = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
-#endif
- test_find_peer->daemon = GNUNET_TESTING_daemon_get (pg, random);
- }
- else /* If we have sent requests, choose peers with a low number of connections to send requests from */
- {
- peer_count =
- GNUNET_CONTAINER_heap_remove_root (find_peer_ctx->peer_min_heap);
- GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove
- (find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey,
- peer_count));
- test_find_peer->daemon =
- GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
- GNUNET_assert (test_find_peer->daemon != NULL);
- }
-
- test_find_peer->find_peer_context = find_peer_ctx;
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (find_peer_offset, i),
- &send_find_peer_request, test_find_peer);
- }
-
- if ((find_peer_ctx->peer_hash == NULL) &&
- (find_peer_ctx->peer_min_heap == NULL))
- {
- find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create (num_peers);
- find_peer_ctx->peer_min_heap =
- GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- }
- else
- {
- GNUNET_CONTAINER_multihashmap_iterate (find_peer_ctx->peer_hash,
- &remove_peer_count, find_peer_ctx);
- GNUNET_CONTAINER_multihashmap_destroy (find_peer_ctx->peer_hash);
- find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create (num_peers);
- }
-
- GNUNET_assert (0 ==
- GNUNET_CONTAINER_multihashmap_size (find_peer_ctx->peer_hash));
- GNUNET_assert (0 ==
- GNUNET_CONTAINER_heap_get_size (find_peer_ctx->peer_min_heap));
-
-}
-
-/**
- * Convert unique ID to hash code.
- *
- * @param uid unique ID to convert
- * @param hash set to uid (extended with zeros)
- */
-static void
-hash_from_uid (uint32_t uid, GNUNET_HashCode * hash)
-{
- memset (hash, 0, sizeof (GNUNET_HashCode));
- *((uint32_t *) hash) = uid;
-}
-
-/**
- * Set up all of the put and get operations we want to do
- * in the current round. Allocate data structure for each,
- * add to list, then schedule the actual PUT operations.
- */
-static void
-setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- int i;
- struct TestPutContext *test_put;
- struct TestGetContext *test_get;
- uint32_t temp_peer;
- GNUNET_HashCode uid_hash;
- int count;
-
-#if REMEMBER
- int remember[num_puts][num_peers];
-
- memset (&remember, 0, sizeof (int) * num_puts * num_peers);
-#endif
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
- known_keys = GNUNET_malloc (sizeof (GNUNET_HashCode) * num_puts);
- for (i = 0; i < num_puts; i++)
- {
- test_put = GNUNET_malloc (sizeof (struct TestPutContext));
- test_put->uid = i;
- GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
- &known_keys[i]);
- /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
- if (GNUNET_YES == malicious_sybil)
- {
- memcpy (&known_keys[i], &sybil_target, sizeof (GNUNET_HashCode) / 2);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Distance between sybil location and key is %d\n",
- GNUNET_CRYPTO_hash_matching_bits (&known_keys[i],
- &sybil_target));
- }
- temp_peer =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- test_put->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
- /* Don't start PUTs at malicious peers! */
- if (malicious_bloom != NULL)
- {
- count = 0;
- hash_from_uid (temp_peer, &uid_hash);
- while ((GNUNET_YES ==
- GNUNET_CONTAINER_bloomfilter_test (malicious_bloom, &uid_hash)) &&
- (count < num_peers))
- {
- temp_peer =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- hash_from_uid (temp_peer, &uid_hash);
- test_put->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
- count++;
- }
- if (count == num_peers)
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Couldn't find peer not in malicious bloom to select!\n");
- }
-
- test_put->next = all_puts;
- all_puts = test_put;
- }
-
- for (i = 0; i < num_gets; i++)
- {
- test_get = GNUNET_malloc (sizeof (struct TestGetContext));
- test_get->uid =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
-#if REMEMBER
- while (remember[test_get->uid][temp_daemon] == 1)
- temp_daemon =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- remember[test_get->uid][temp_daemon] = 1;
-#endif
- temp_peer =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- test_get->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
- /* Don't start GETs at malicious peers! */
- if (malicious_bloom != NULL)
- {
- hash_from_uid (temp_peer, &uid_hash);
- count = 0;
- while ((GNUNET_YES ==
- GNUNET_CONTAINER_bloomfilter_test (malicious_bloom, &uid_hash)) &&
- (count < num_peers))
- {
- temp_peer =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- hash_from_uid (temp_peer, &uid_hash);
- test_get->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
- count++;
- }
- if (count == num_peers)
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Couldn't find peer not in malicious bloom to select!\n");
- }
- test_get->next = all_gets;
- all_gets = test_get;
- }
-
- /*GNUNET_SCHEDULER_cancel (die_task); */
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
- &end_badly, "from do puts");
- GNUNET_SCHEDULER_add_now (&do_put, all_puts);
-
-}
-
-/**
- * Set up some all of the put and get operations we want
- * to do. Allocate data structure for each, add to list,
- * then call actual insert functions.
- */
-static void
-continue_puts_and_gets (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- int i;
- int max;
- struct TopologyIteratorContext *topo_ctx;
- struct FindPeerContext *find_peer_context;
-
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets\n");
- if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
- {
- if (settle_time >= 180 * 2)
- max = (settle_time / 180) - 2;
- else
- max = 1;
- for (i = 1; i < max; i++)
- {
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- topo_ctx->current_iteration = i;
- topo_ctx->total_iterations = max;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MINUTES, i * 3),
- &capture_current_topology, topo_ctx);
- }
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- topo_ctx->cont = &setup_puts_and_gets;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "setting setup_puts_and_gets for %d seconds in the future\n",
- settle_time + 10);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- (settle_time + 10)),
- &capture_current_topology, topo_ctx);
- }
- else
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- (settle_time + 10)), &setup_puts_and_gets,
- NULL);
-
- if (dhtlog_handle != NULL)
- dhtlog_handle->insert_round (DHT_ROUND_NORMAL, rounds_finished);
-
-#if HAVE_MALICIOUS
- if ((GNUNET_YES != malicious_after_settle) || (settle_time == 0))
- {
- GNUNET_SCHEDULER_add_now (&setup_malicious_peers, NULL);
- }
-#endif
-
- if ((GNUNET_YES == do_find_peer) && (settle_time > 0))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling find peer requests during \"settle\" time.\n");
- find_peer_context = GNUNET_malloc (sizeof (struct FindPeerContext));
- find_peer_context->count_peers_cb = &count_peers_cb;
- find_peer_context->endtime =
- GNUNET_TIME_relative_to_absolute (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- settle_time));
- GNUNET_SCHEDULER_add_now (&schedule_find_peer_requests, find_peer_context);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Assuming automatic DHT find peer requests.\n");
- }
-}
-
-#if HAVE_MALICIOUS
-/**
- * Task to release DHT handles
- */
-static void
-malicious_disconnect_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct MaliciousContext *ctx = cls;
-
- outstanding_malicious--;
- malicious_completed++;
- ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_DHT_disconnect (ctx->dht_handle);
- ctx->dht_handle = NULL;
- GNUNET_free (ctx);
-
- if (malicious_completed ==
- malicious_getters + malicious_putters + malicious_droppers)
- {
- fprintf (stderr, "Finished setting all malicious peers up!\n");
- }
-}
-
-/**
- * Task to release DHT handles
- */
-static void
-malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct MaliciousContext *ctx = cls;
-
- GNUNET_SCHEDULER_cancel (ctx->disconnect_task);
- GNUNET_SCHEDULER_add_now (&malicious_disconnect_task, ctx);
-}
-
-/**
- * Set up some data, and call API PUT function
- */
-static void
-set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct MaliciousContext *ctx = cls;
-
- if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
- {
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MILLISECONDS, 100),
- &set_malicious, ctx);
- return;
- }
-
- if (ctx->dht_handle == NULL)
- {
- ctx->dht_handle = GNUNET_DHT_connect (ctx->daemon->cfg, 1);
- outstanding_malicious++;
- }
-
- GNUNET_assert (ctx->dht_handle != NULL);
-
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
- ctx->daemon->shortname, ctx->malicious_type);
-#endif
-
- switch (ctx->malicious_type)
- {
- case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
- GNUNET_DHT_set_malicious_getter (ctx->dht_handle, malicious_get_frequency,
- &malicious_done_task, ctx);
- break;
- case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
- GNUNET_DHT_set_malicious_putter (ctx->dht_handle, malicious_put_frequency,
- &malicious_done_task, ctx);
- break;
- case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
- GNUNET_DHT_set_malicious_dropper (ctx->dht_handle, &malicious_done_task,
- ctx);
- break;
- default:
- break;
- }
-
- ctx->disconnect_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
- &malicious_disconnect_task, ctx);
-}
-
-/**
- * Choose the next peer from the peer group to set as malicious.
- * If we are doing a sybil attack, find the nearest peer to the
- * sybil location that has not already been set malicious. Otherwise
- * just choose a random not already chosen peer.
- *
- * @param pg the peer group
- * @param bloom the bloomfilter which contains all peer already
- * chosen to be malicious
- */
-static uint32_t
-choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg,
- struct GNUNET_CONTAINER_BloomFilter *bloom)
-{
- int i;
- int nearest;
- int bits_match;
- int curr_distance;
- int count;
- struct GNUNET_TESTING_Daemon *temp_daemon;
- GNUNET_HashCode uid_hash;
-
- curr_distance = 0;
- nearest = 0;
- GNUNET_assert (bloom != NULL);
-
- if (GNUNET_YES == malicious_sybil)
- {
- for (i = 0; i < num_peers; i++)
- {
- temp_daemon = GNUNET_TESTING_daemon_get (pg, i);
- hash_from_uid (i, &uid_hash);
- /* Check if this peer matches the bloomfilter */
- if ((GNUNET_NO == GNUNET_TESTING_test_daemon_running (temp_daemon)) ||
- (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)))
- continue;
-
- bits_match =
- GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey,
- &sybil_target);
- if (bits_match >= curr_distance)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Found nearer peer %s to %s, old matching bits %d, new %d\n",
- GNUNET_i2s (&temp_daemon->id), GNUNET_h2s (&sybil_target),
- curr_distance, bits_match);
- nearest = i;
- curr_distance = bits_match;
- }
- }
- }
- else
- {
- nearest = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- hash_from_uid (nearest, &uid_hash);
- count = 0;
- while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash))
- && (count < num_peers))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Peer %d already in bloom (tried %d times)\n", nearest,
- count);
- nearest =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
- hash_from_uid (nearest, &uid_hash);
- count++;
- }
- if (count == num_peers)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Tried %d times to find a peer, selecting %d at random!!\n",
- count, nearest);
- }
-
- return nearest;
-}
-
-/**
- * Select randomly from set of known peers,
- * set the desired number of peers to the
- * proper malicious types.
- */
-static void
-setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct MaliciousContext *ctx;
- int i;
- uint32_t temp_daemon;
- GNUNET_HashCode uid_hash;
-
- for (i = 0; i < malicious_getters; i++)
- {
- ctx = GNUNET_malloc (sizeof (struct MaliciousContext));
- temp_daemon = choose_next_malicious (pg, malicious_bloom);
- ctx->daemon = GNUNET_TESTING_daemon_get (pg, temp_daemon);
- hash_from_uid (temp_daemon, &uid_hash);
- GNUNET_CONTAINER_bloomfilter_add (malicious_bloom, &uid_hash);
- ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
- GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
-
- }
-
- for (i = 0; i < malicious_putters; i++)
- {
- ctx = GNUNET_malloc (sizeof (struct MaliciousContext));
- temp_daemon = choose_next_malicious (pg, malicious_bloom);
- ctx->daemon = GNUNET_TESTING_daemon_get (pg, temp_daemon);
- hash_from_uid (temp_daemon, &uid_hash);
- GNUNET_CONTAINER_bloomfilter_add (malicious_bloom, &uid_hash);
- ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
- GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
-
- }
-
- for (i = 0; i < malicious_droppers; i++)
- {
- ctx = GNUNET_malloc (sizeof (struct MaliciousContext));
- temp_daemon = choose_next_malicious (pg, malicious_bloom);
- ctx->daemon = GNUNET_TESTING_daemon_get (pg, temp_daemon);
- hash_from_uid (temp_daemon, &uid_hash);
- GNUNET_CONTAINER_bloomfilter_add (malicious_bloom, &uid_hash);
- ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
- GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
- }
-}
-#endif
-
-/**
- * This function is called whenever a connection attempt is finished between two of
- * the started peers (started with GNUNET_TESTING_daemons_start). The total
- * number of times this function is called should equal the number returned
- * from the GNUNET_TESTING_connect_topology call.
- *
- * The emsg variable is NULL on success (peers connected), and non-NULL on
- * failure (peers failed to connect).
- */
-static void
-topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second, uint32_t distance,
- const struct GNUNET_CONFIGURATION_Handle *first_cfg,
- const struct GNUNET_CONFIGURATION_Handle *second_cfg,
- struct GNUNET_TESTING_Daemon *first_daemon,
- struct GNUNET_TESTING_Daemon *second_daemon,
- const char *emsg)
-{
- struct TopologyIteratorContext *topo_ctx;
- uint64_t duration;
- uint64_t total_duration;
- uint64_t new_connections;
- uint64_t new_failed_connections;
- double conns_per_sec_recent;
- double conns_per_sec_total;
- double failed_conns_per_sec_recent;
- double failed_conns_per_sec_total;
- char *temp_conn_string;
- char *temp_conn_failed_string;
- char *revision_str;
-
- if (GNUNET_TIME_absolute_get_difference
- (connect_last_time,
- GNUNET_TIME_absolute_get ()).rel_value >
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- CONN_UPDATE_DURATION).rel_value)
- {
- /* Get number of new connections */
- new_connections = total_connections - previous_connections;
-
- /* Get number of new FAILED connections */
- new_failed_connections = failed_connections - previous_failed_connections;
-
- /* Get duration in seconds */
- duration =
- GNUNET_TIME_absolute_get_difference (connect_last_time,
- GNUNET_TIME_absolute_get
- ()).rel_value / 1000;
- total_duration =
- GNUNET_TIME_absolute_get_difference (connect_start_time,
- GNUNET_TIME_absolute_get
- ()).rel_value / 1000;
-
- failed_conns_per_sec_recent =
- (double) new_failed_connections / (double) duration;
- failed_conns_per_sec_total =
- (double) failed_connections / (double) total_duration;
- conns_per_sec_recent = (double) new_connections / (double) duration;
- conns_per_sec_total = (double) total_connections / (double) total_duration;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Recent: %.2f/s, Total: %.2f/s, Recent failed: %.2f/s, total failed %.2f/s\n",
- conns_per_sec_recent, conns_per_sec_total,
- failed_conns_per_sec_recent, failed_conns_per_sec_total);
- connect_last_time = GNUNET_TIME_absolute_get ();
- previous_connections = total_connections;
- previous_failed_connections = failed_connections;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "have %llu total_connections, %llu failed\n", total_connections,
- failed_connections);
- }
-
- if (emsg == NULL)
- {
- total_connections++;
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "connected peer %s to peer %s, distance %u\n",
- first_daemon->shortname, second_daemon->shortname, distance);
-#endif
- }
- else
- {
- failed_connections++;
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to connect peer %s to peer %s with error :\n%s\n",
- first_daemon->shortname, second_daemon->shortname, emsg);
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to connect peer %s to peer %s with error :\n%s\n",
- first_daemon->shortname, second_daemon->shortname, emsg);
-#endif
- }
-
- GNUNET_assert (peer_connect_meter != NULL);
- if (GNUNET_YES == update_meter (peer_connect_meter))
- {
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Created %d total connections, which is our target number! Starting next phase of testing.\n",
- total_connections);
-#endif
- if (failed_connections > 0)
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "While connecting, had %u failed connections.\n",
- failed_connections);
- if (dhtlog_handle != NULL)
- {
- dhtlog_handle->update_connections (total_connections);
- dhtlog_handle->insert_topology (expected_connections);
- }
-
- total_duration =
- GNUNET_TIME_absolute_get_difference (connect_start_time,
- GNUNET_TIME_absolute_get
- ()).rel_value / 1000;
- failed_conns_per_sec_total =
- (long double) failed_connections / total_duration;
- conns_per_sec_total = (long double) total_connections / total_duration;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Overall connection info --- Total: %u, Total Failed %u/s\n",
- total_connections, failed_connections);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Overall connection info --- Total: %.2f/s, Total Failed %.2f/s\n",
- conns_per_sec_total, failed_conns_per_sec_total);
-
- GNUNET_asprintf (&temp_conn_string, "DHT Profiler Connection/s",
- trial_to_run);
- GNUNET_asprintf (&temp_conn_failed_string,
- "DHT Profiler Connection/s failed", trial_to_run);
- GNUNET_asprintf (&revision_str, "%llu", revision);
-
- if (GNUNET_YES == insert_gauger_data)
- GAUGER_ID ("DHT_TESTING", temp_conn_string,
- (long double) conns_per_sec_total, "conns/s", revision_str);
- if (GNUNET_YES == insert_gauger_data)
- GAUGER_ID ("DHT_TESTING", temp_conn_failed_string,
- (long double) failed_conns_per_sec_total, "failed_conns",
- revision_str);
-
- GNUNET_free (temp_conn_string);
- GNUNET_free (temp_conn_failed_string);
- GNUNET_asprintf (&temp_conn_string, "DHT Profiler Total Connections",
- trial_to_run);
- GNUNET_asprintf (&temp_conn_failed_string,
- "DHT Profiler Total Connections failed", trial_to_run);
- if (GNUNET_YES == insert_gauger_data)
- GAUGER_ID ("DHT_TESTING", temp_conn_string, (double) total_connections,
- "conns", revision_str);
- if (GNUNET_YES == insert_gauger_data)
- GAUGER_ID ("DHT_TESTING", temp_conn_failed_string,
- (double) failed_connections, "failed conns", revision_str);
- GNUNET_free (temp_conn_string);
- GNUNET_free (temp_conn_failed_string);
- GNUNET_free (revision_str);
-
- GNUNET_SCHEDULER_cancel (die_task);
-
- if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
- {
- topo_ctx = GNUNET_malloc (sizeof (struct TopologyIteratorContext));
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Setting continue gets and puts as topo_cont\n");
- topo_ctx->cont = &continue_puts_and_gets;
- topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
- GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "For some reason, NOT scheduling final topology capture (settle_time %d, dhtlog_handle %s)!\n",
- settle_time, dhtlog_handle);
- GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
- }
- }
- else if (total_connections + failed_connections == expected_connections)
- {
- GNUNET_SCHEDULER_cancel (die_task);
- die_task =
- GNUNET_SCHEDULER_add_now (&end_badly,
- "from topology_callback (too many failed connections)");
- }
-}
-
-static void
-peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
- const struct GNUNET_CONFIGURATION_Handle *cfg,
- struct GNUNET_TESTING_Daemon *d, const char *emsg)
-{
- char *revision_str;
-
- if (emsg != NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to start daemon with error: `%s'\n", emsg);
- return;
- }
- GNUNET_assert (id != NULL);
-
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
- (num_peers - peers_left) + 1, num_peers);
-#endif
-
- peers_left--;
-
- if (GNUNET_YES == update_meter (peer_start_meter))
- {
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "All %d daemons started, now connecting peers!\n", num_peers);
-#endif
- GNUNET_SCHEDULER_cancel (die_task);
-
- GNUNET_asprintf (&revision_str, "%llu", revision);
- if (GNUNET_YES == insert_gauger_data)
- GAUGER_ID ("DHT_TESTING", "peer_startup_time",
- GNUNET_TIME_absolute_get_duration (peer_start_time).rel_value /
- (double) num_peers, "ms/peer", revision_str);
- GNUNET_free (revision_str);
-
- expected_connections = UINT_MAX;
- if ((pg != NULL) && (peers_left == 0))
- {
- connect_start_time = GNUNET_TIME_absolute_get ();
- expected_connections =
- GNUNET_TESTING_connect_topology (pg, connect_topology,
- connect_topology_option,
- connect_topology_option_modifier,
- connect_timeout, connect_attempts,
- NULL, NULL);
-
- peer_connect_meter =
- create_meter (expected_connections, "Peer connection ", GNUNET_YES);
- fprintf (stderr, "Have %d expected connections\n", expected_connections);
- }
-
- if (expected_connections == 0)
- {
- die_task =
- GNUNET_SCHEDULER_add_now (&end_badly,
- "from connect topology (bad return)");
- }
-
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS,
- DEFAULT_CONNECT_TIMEOUT *
- expected_connections), &end_badly,
- "from connect topology (timeout)");
-
- ok = 0;
- }
-}
-
-static void
-create_topology ()
-{
- unsigned int create_expected_connections;
-
- peers_left = num_peers; /* Reset counter */
- create_expected_connections =
- GNUNET_TESTING_create_topology (pg, topology, blacklist_topology,
- blacklist_transports);
- if (create_expected_connections > 0)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Topology set up, have %u expected connections, now starting peers!\n",
- create_expected_connections);
- GNUNET_TESTING_daemons_continue_startup (pg);
- peer_start_time = GNUNET_TIME_absolute_get ();
- }
- else
- {
- GNUNET_SCHEDULER_cancel (die_task);
- die_task =
- GNUNET_SCHEDULER_add_now (&end_badly,
- "from create topology (bad return)");
- }
- GNUNET_free_non_null (blacklist_transports);
- GNUNET_SCHEDULER_cancel (die_task);
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (seconds_per_peer_start, num_peers),
- &end_badly,
- "from continue startup (timeout)");
-}
-
-/**
- * Callback indicating that the hostkey was created for a peer.
- *
- * @param cls NULL
- * @param id the peer identity
- * @param d the daemon handle (pretty useless at this point, remove?)
- * @param emsg non-null on failure
- */
-static void
-hostkey_callback (void *cls, const struct GNUNET_PeerIdentity *id,
- struct GNUNET_TESTING_Daemon *d, const char *emsg)
-{
- char *revision_str;
-
- if (emsg != NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Hostkey callback received error: %s\n", emsg);
- }
-
-#if VERBOSE > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Hostkey (%d/%d) created for peer `%s'\n", num_peers - peers_left,
- num_peers, GNUNET_i2s (id));
-#endif
-
- peers_left--;
- if (GNUNET_YES == update_meter (hostkey_meter))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "All %d hostkeys created, now creating topology!\n", num_peers);
-
- GNUNET_asprintf (&revision_str, "%llu", revision);
- if (GNUNET_YES == insert_gauger_data)
- {
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_have_value (config, "TESTING", "HOSTKEYSFILE"))
- {
- GAUGER_ID ("DHT_TESTING", "HOSTKEY_GENERATION",
- GNUNET_TIME_absolute_get_duration
- (hostkey_start_time).rel_value / (double) num_peers,
- "ms/hostkey", revision_str);
- }
- else
- {
- GAUGER_ID ("DHT_TESTING", "HOSTKEY_GENERATION_REAL",
- GNUNET_TIME_absolute_get_duration
- (hostkey_start_time).rel_value / (double) num_peers,
- "ms/hostkey", revision_str);
- }
- }
-
- GNUNET_free (revision_str);
-
- GNUNET_SCHEDULER_cancel (die_task);
- /* Set up task in case topology creation doesn't finish
- * within a reasonable amount of time */
- die_task =
- GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT, &end_badly,
- "from create_topology");
- GNUNET_SCHEDULER_add_now (&create_topology, NULL);
- ok = 0;
- }
-}
-
-static void
-run (void *cls, char *const *args, const char *cfgfile,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
-{
- struct stat frstat;
- struct GNUNET_DHTLOG_TrialInfo trial_info;
- struct GNUNET_TESTING_Host *hosts;
- struct GNUNET_TESTING_Host *temphost;
- struct GNUNET_TESTING_Host *tempnext;
- char *topology_str;
- char *connect_topology_str;
- char *blacklist_topology_str;
- char *connect_topology_option_str;
- char *connect_topology_option_modifier_string;
- char *trialmessage;
- char *topology_percentage_str;
- float topology_percentage;
- char *topology_probability_str;
- char *hostfile;
- float topology_probability;
- unsigned long long temp_config_number;
- int stop_closest;
- int stop_found;
- int strict_kademlia;
- char *buf;
- char *data;
- char *churn_data;
- char *churn_filename;
- int count;
- int ret;
- int line_number;
- int k;
-
- config = cfg;
- rounds_finished = 0;
- memset (&trial_info, 0, sizeof (struct GNUNET_DHTLOG_TrialInfo));
- /* Get path from configuration file */
- if (GNUNET_YES !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
- &test_directory))
- {
- ok = 404;
- return;
- }
-
- /* Get number of peers to start from configuration */
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
- &num_peers))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Number of peers must be specified in section %s option %s\n",
- "TESTING", "NUM_PEERS");
- }
- GNUNET_assert (num_peers > 0 && num_peers < ULONG_MAX);
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_timeout",
- &temp_config_number))
- connect_timeout =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
- "testing", "connect_timeout");
- return;
- }
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_attempts",
- &connect_attempts))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
- "testing", "connect_attempts");
- return;
- }
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
- "max_outstanding_connections",
- &max_outstanding_connections))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
- "testing", "max_outstanding_connections");
- return;
- }
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
- "max_concurrent_ssh",
- &max_concurrent_ssh))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
- "testing", "max_concurrent_ssh");
- return;
- }
-
- /**
- * Get DHT specific testing options.
- */
- if ((GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
- "mysql_logging")) ||
- (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
- "mysql_logging_extended")) ||
- (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
- "mysql_logging_minimal")))
- {
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
- "mysql_logging_minimal"))
- dhtlog_minimal = GNUNET_YES;
-
- dhtlog_handle = GNUNET_DHTLOG_connect (cfg);
- if (dhtlog_handle == NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Could not connect to mysql server for logging, will NOT log dht operations!");
- ok = 3306;
- return;
- }
- }
-
- stop_closest =
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "stop_on_closest");
- if (stop_closest == GNUNET_SYSERR)
- stop_closest = GNUNET_NO;
-
- stop_found = GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "stop_found");
- if (stop_found == GNUNET_SYSERR)
- stop_found = GNUNET_NO;
-
- strict_kademlia =
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "strict_kademlia");
- if (strict_kademlia == GNUNET_SYSERR)
- strict_kademlia = GNUNET_NO;
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
- &trialmessage))
- trialmessage = NULL;
-
- churn_data = NULL;
- /** Check for a churn file to do churny simulation */
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "churn_file",
- &churn_filename))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n",
- churn_filename);
- if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
- GNUNET_free_non_null (trialmessage);
- GNUNET_free (churn_filename);
- return;
- }
- if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not open file specified for churn data, ending test!");
- ok = 1119;
- GNUNET_free_non_null (trialmessage);
- GNUNET_free (churn_filename);
- return;
- }
-
- churn_data = GNUNET_malloc_large (frstat.st_size);
- GNUNET_assert (churn_data != NULL);
- if (frstat.st_size !=
- GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not read file %s specified for churn, ending test!",
- churn_filename);
- GNUNET_free (churn_filename);
- GNUNET_free (churn_data);
- GNUNET_free_non_null (trialmessage);
- return;
- }
-
- GNUNET_free_non_null (churn_filename);
-
- buf = churn_data;
- count = 0;
- /* Read the first line */
- while (count < frstat.st_size)
- {
- count++;
- if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
- {
- churn_data[count] = '\0';
- if (1 != sscanf (buf, "%u", &churn_rounds))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to read number of rounds from churn file, ending test!\n");
- ret = 4200;
- GNUNET_free_non_null (trialmessage);
- GNUNET_free_non_null (churn_data);
- return;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Read %u rounds from churn file\n", churn_rounds);
- buf = &churn_data[count + 1];
- churn_array = GNUNET_malloc (sizeof (unsigned int) * churn_rounds);
- break; /* Done with this part */
- }
- }
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "churns_per_round",
- &churns_per_round))
- {
- churns_per_round = (unsigned long long) churn_rounds;
- }
-
- line_number = 0;
- while ((count < frstat.st_size) && (line_number < churn_rounds))
- {
- count++;
- if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
- {
- churn_data[count] = '\0';
-
- ret = sscanf (buf, "%u", &churn_array[line_number]);
- if (1 == ret)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n",
- churn_array[line_number], line_number);
- line_number++;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Error reading line `%s' in hostfile\n", buf);
- buf = &churn_data[count + 1];
- continue;
- }
- buf = &churn_data[count + 1];
- }
- else if (churn_data[count] == '\n') /* Blank line */
- buf = &churn_data[count + 1];
- }
- }
- GNUNET_free_non_null (churn_data);
-
- /* Check for a hostfile containing user@host:port triples */
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
- &hostfile))
- hostfile = NULL;
-
- hosts = NULL;
- temphost = NULL;
- data = NULL;
- if (hostfile != NULL)
- {
- if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
- GNUNET_DISK_fn_write (hostfile, NULL, 0,
- GNUNET_DISK_PERM_USER_READ |
- GNUNET_DISK_PERM_USER_WRITE);
- if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not open file specified for host list, ending test!");
- ok = 1119;
- GNUNET_free_non_null (trialmessage);
- GNUNET_free (hostfile);
- return;
- }
-
- data = GNUNET_malloc_large (frstat.st_size);
- GNUNET_assert (data != NULL);
- if (frstat.st_size != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Could not read file %s specified for host list, ending test!",
- hostfile);
- GNUNET_free (hostfile);
- GNUNET_free (data);
- GNUNET_free_non_null (trialmessage);
- return;
- }
-
- GNUNET_free_non_null (hostfile);
-
- buf = data;
- count = 0;
- while (count < frstat.st_size - 1)
- {
- count++;
- if (((data[count] == '\n')) && (buf != &data[count]))
- {
- data[count] = '\0';
- temphost = GNUNET_malloc (sizeof (struct GNUNET_TESTING_Host));
- ret =
- sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
- &temphost->username, &temphost->hostname, &temphost->port);
- if (3 == ret)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Successfully read host %s, port %d and user %s from file\n",
- temphost->hostname, temphost->port, temphost->username);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Error reading line `%s' in hostfile\n", buf);
- GNUNET_free (temphost);
- buf = &data[count + 1];
- continue;
- }
- temphost->next = hosts;
- hosts = temphost;
- buf = &data[count + 1];
- }
- else if ((data[count] == '\n') || (data[count] == '\0'))
- buf = &data[count + 1];
- }
- }
- GNUNET_free_non_null (data);
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "malicious_getters",
- &malicious_getters))
- malicious_getters = 0;
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "malicious_putters",
- &malicious_putters))
- malicious_putters = 0;
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "malicious_droppers",
- &malicious_droppers))
- malicious_droppers = 0;
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
- &settle_time))
- settle_time = 0;
-
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
- &num_puts))
- num_puts = num_peers;
-
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "put_replication",
- &put_replication))
- put_replication = DEFAULT_PUT_REPLICATION;
-
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
- &num_gets))
- num_gets = num_peers;
-
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "get_replication",
- &get_replication))
- get_replication = DEFAULT_GET_REPLICATION;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "find_peer_delay",
- &temp_config_number))
- find_peer_delay =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- find_peer_delay = DEFAULT_FIND_PEER_DELAY;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "concurrent_find_peers",
- &temp_config_number))
- max_outstanding_find_peers = temp_config_number;
- else
- max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
- &temp_config_number))
- get_timeout =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- get_timeout = DEFAULT_GET_TIMEOUT;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "concurrent_puts",
- &temp_config_number))
- max_outstanding_puts = temp_config_number;
- else
- max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "concurrent_gets",
- &temp_config_number))
- max_outstanding_gets = temp_config_number;
- else
- max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
- &temp_config_number))
- all_get_timeout =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
- &temp_config_number))
- get_delay =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- get_delay = DEFAULT_GET_DELAY;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
- &temp_config_number))
- put_delay =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- put_delay = DEFAULT_PUT_DELAY;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "peer_start_timeout",
- &temp_config_number))
- seconds_per_peer_start =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
-
- if (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
- &temp_config_number))
- test_data_size = temp_config_number;
- else
- test_data_size = DEFAULT_TEST_DATA_SIZE;
-
- /**
- * Get DHT testing related options.
- */
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
- "REPLICATE_SAME"))
- replicate_same = GNUNET_YES;
-
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "target_completions",
- &target_completions))
- target_completions = 0; /* Not required, on stack */
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
- "GET_FROM_SAME"))
- get_from_same = GNUNET_YES;
-
- if (GNUNET_NO ==
- GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
- "MALICIOUS_GET_FREQUENCY",
- &malicious_get_frequency))
- malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
-
- if (GNUNET_NO ==
- GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
- "MALICIOUS_PUT_FREQUENCY",
- &malicious_put_frequency))
- malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
- "MALICIOUS_AFTER_SETTLE"))
- malicious_after_settle = GNUNET_YES;
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
- "MALICIOUS_SYBIL"))
- {
- /* Set up the malicious target at random for this round */
- GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
- &sybil_target);
- malicious_sybil = GNUNET_YES;
- }
-
- /* Create the bloomfilter for choosing which peers to set malicious */
-
- /* Bloomfilter size must be 2^k for some integer k */
- k = 1;
- while (1 << k < malicious_droppers)
- k++;
- if (malicious_droppers > 0)
- malicious_bloom =
- GNUNET_CONTAINER_bloomfilter_init (NULL, 1 << k, DHT_BLOOM_K);
-
- /* The normal behavior of the DHT is to do find peer requests
- * on its own. Only if this is explicitly turned off should
- * the testing driver issue find peer requests (even though
- * this is likely the default when testing).
- */
- if (GNUNET_NO ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "do_find_peer"))
- do_find_peer = GNUNET_YES;
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
- "insert_gauger_data"))
- insert_gauger_data = GNUNET_YES;
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "republish"))
- in_dht_replication = GNUNET_YES;
-
- if (GNUNET_YES !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING", "TRIAL_TO_RUN",
- &trial_to_run))
- trial_to_run = 0;
-
- if (GNUNET_YES !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING", "REVISION",
- &revision))
- revision = 0;
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
- "FIND_PEER_DELAY",
- &temp_config_number))
- find_peer_delay =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
- temp_config_number);
- else
- find_peer_delay = DEFAULT_FIND_PEER_DELAY;
-
- if (GNUNET_YES !=
- GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING", "ROUND_DELAY",
- &round_delay))
- round_delay = 0;
-
- if (GNUNET_NO ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
- "OUTSTANDING_FIND_PEERS",
- &max_outstanding_find_peers))
- max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "strict_kademlia"))
- max_outstanding_find_peers = max_outstanding_find_peers * 1;
-
- find_peer_offset =
- GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
-
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
- &total_rounds))
- total_rounds = 1;
-
- if ((GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
- "target_total_connections",
- &target_total_connections)) ||
- (target_total_connections == 0))
- target_total_connections =
- connection_estimate (num_peers, DEFAULT_BUCKET_SIZE);
-
- topology_str = NULL;
- if ((GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "topology",
- &topology_str)) &&
- (GNUNET_NO == GNUNET_TESTING_topology_get (&topology, topology_str)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid topology `%s' given for section %s option %s\n",
- topology_str, "TESTING", "TOPOLOGY");
- topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
- }
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
- &topology_percentage_str))
- topology_percentage = 0.5;
- else
- {
- topology_percentage = atof (topology_percentage_str);
- GNUNET_free (topology_percentage_str);
- }
-
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
- &topology_probability_str))
- topology_probability = 0.5;
- else
- {
- topology_probability = atof (topology_probability_str);
- GNUNET_free (topology_probability_str);
- }
-
- if ((GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
- "connect_topology",
- &connect_topology_str)) &&
- (GNUNET_NO ==
- GNUNET_TESTING_topology_get (&connect_topology, connect_topology_str)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid connect topology `%s' given for section %s option %s\n",
- connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
- }
- GNUNET_free_non_null (connect_topology_str);
-
- if ((GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
- "connect_topology_option",
- &connect_topology_option_str)) &&
- (GNUNET_NO ==
- GNUNET_TESTING_topology_option_get (&connect_topology_option,
- connect_topology_option_str)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid connect topology option `%s' given for section %s option %s\n",
- connect_topology_option_str, "TESTING",
- "CONNECT_TOPOLOGY_OPTION");
- connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
- }
- GNUNET_free_non_null (connect_topology_option_str);
-
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
- "connect_topology_option_modifier",
- &connect_topology_option_modifier_string))
- {
- if (sscanf
- (connect_topology_option_modifier_string, "%lf",
- &connect_topology_option_modifier) != 1)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _
- ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
- connect_topology_option_modifier_string,
- "connect_topology_option_modifier", "TESTING");
- }
- GNUNET_free (connect_topology_option_modifier_string);
- }
-
- if (GNUNET_YES !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
- "blacklist_transports",
- &blacklist_transports))
- blacklist_transports = NULL;
-
- if ((GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
- "blacklist_topology",
- &blacklist_topology_str)) &&
- (GNUNET_NO ==
- GNUNET_TESTING_topology_get (&blacklist_topology,
- blacklist_topology_str)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid topology `%s' given for section %s option %s\n",
- topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
- }
- GNUNET_free_non_null (topology_str);
- GNUNET_free_non_null (blacklist_topology_str);
-
- /* Set peers_left so we know when all peers started */
- peers_left = num_peers;
-
- /* Set up a task to end testing if peer start fails */
- die_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (seconds_per_peer_start, num_peers),
- &end_badly,
- "didn't generate all hostkeys within allowed startup time!");
-
- if (dhtlog_handle == NULL)
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "dhtlog_handle is NULL!");
-
- trial_info.other_identifier = (unsigned int) trial_to_run;
- trial_info.num_nodes = peers_left;
- trial_info.topology = topology;
- trial_info.blacklist_topology = blacklist_topology;
- trial_info.connect_topology = connect_topology;
- trial_info.connect_topology_option = connect_topology_option;
- trial_info.connect_topology_option_modifier =
- connect_topology_option_modifier;
- trial_info.topology_percentage = topology_percentage;
- trial_info.topology_probability = topology_probability;
- trial_info.puts = num_puts;
- trial_info.gets = num_gets;
- trial_info.concurrent = max_outstanding_gets;
- trial_info.settle_time = settle_time;
- trial_info.num_rounds = total_rounds;
- trial_info.malicious_getters = malicious_getters;
- trial_info.malicious_putters = malicious_putters;
- trial_info.malicious_droppers = malicious_droppers;
- trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
- trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
- trial_info.stop_closest = stop_closest;
- trial_info.stop_found = stop_found;
- trial_info.strict_kademlia = strict_kademlia;
-
- if (trialmessage != NULL)
- trial_info.message = trialmessage;
- else
- trial_info.message = "";
-
- if (dhtlog_handle != NULL)
- dhtlog_handle->insert_trial (&trial_info);
-
- GNUNET_free_non_null (trialmessage);
-
- hostkey_meter = create_meter (peers_left, "Hostkeys created ", GNUNET_YES);
- peer_start_meter = create_meter (peers_left, "Peers started ", GNUNET_YES);
-
- put_meter = create_meter (num_puts, "Puts completed ", GNUNET_YES);
- get_meter = create_meter (num_gets, "Gets completed ", GNUNET_YES);
- hostkey_start_time = GNUNET_TIME_absolute_get ();
- pg = GNUNET_TESTING_daemons_start (cfg, peers_left,
- max_outstanding_connections,
- max_concurrent_ssh,
- GNUNET_TIME_relative_multiply
- (seconds_per_peer_start, num_peers),
- &hostkey_callback, NULL,
- &peers_started_callback, NULL,
- &topology_callback, NULL, hosts);
- temphost = hosts;
- while (temphost != NULL)
- {
- tempnext = temphost->next;
- GNUNET_free (temphost->username);
- GNUNET_free (temphost->hostname);
- GNUNET_free (temphost);
- temphost = tempnext;
- }
-}
-
-int
-main (int argc, char *argv[])
-{
- int ret;
-
- struct GNUNET_GETOPT_CommandLineOption options[] = {
- GNUNET_GETOPT_OPTION_END
- };
-
- ret =
- GNUNET_PROGRAM_run (argc, argv, "gnunet-dht-driver", "nohelp", options,
- &run, &ok);
-
- if (malicious_bloom != NULL)
- GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
-
- if (ret != GNUNET_OK)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "`gnunet-dht-driver': Failed with error code %d\n", ret);
- }
-
- /**
- * Need to remove base directory, subdirectories taken care
- * of by the testing framework.
- */
- if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to remove testing directory %s\n", test_directory);
- }
- return ret;
-}
-
-/* end of gnunet-dht-driver.c */
projects / oweals / gnunet.git / commitdiff