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21 * @file rps/test_rps_multipeer.c
22 * @brief Testcase for the random peer sampling service. Starts
23 * a peergroup with a given number of peers, then waits to
24 * receive size pushes/pulls from each peer. Expects to wait
25 * for one message from each peer.
28 #include "gnunet_util_lib.h"
29 #include "gnunet_testbed_service.h"
31 #include "gnunet_rps_service.h"
32 #include "rps-test_util.h"
33 #include "gnunet-service-rps_sampler_elem.h"
39 * How many peers do we start?
41 static uint32_t num_peers;
44 * How long do we run the test?
46 //#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
47 static struct GNUNET_TIME_Relative timeout;
51 * Portion of malicious peers
53 static double portion = .1;
56 * Type of malicious peer to test
58 static unsigned int mal_type = 0;
61 * Handles to all of the running peers
63 static struct GNUNET_TESTBED_Peer **testbed_peers;
74 struct OpListEntry *next;
79 struct OpListEntry *prev;
82 * The testbed operation
84 struct GNUNET_TESTBED_Operation *op;
87 * Depending on whether we start or stop NSE service at the peer set this to 1
93 * Index of the regarding peer
101 static struct OpListEntry *oplist_head;
106 static struct OpListEntry *oplist_tail;
110 * A pending reply: A request was sent and the reply is pending.
117 struct PendingReply *next;
118 struct PendingReply *prev;
121 * Handle to the request we are waiting for
123 struct GNUNET_RPS_Request_Handle *req_handle;
126 * The peer that requested
128 struct RPSPeer *rps_peer;
133 * A pending request: A request was not made yet but is scheduled for later.
135 struct PendingRequest
140 struct PendingRequest *next;
141 struct PendingRequest *prev;
144 * Handle to the request we are waiting for
146 struct GNUNET_SCHEDULER_Task *request_task;
149 * The peer that requested
151 struct RPSPeer *rps_peer;
156 * Information we track for each peer.
166 * Handle for RPS connect operation.
168 struct GNUNET_TESTBED_Operation *op;
171 * Handle to RPS service.
173 struct GNUNET_RPS_Handle *rps_handle;
178 struct GNUNET_PeerIdentity *peer_id;
181 * A request handle to check for an request
183 //struct GNUNET_RPS_Request_Handle *req_handle;
186 * Peer on- or offline?
191 * Number of Peer IDs to request
193 unsigned int num_ids_to_request;
196 * Pending requests DLL
198 struct PendingRequest *pending_req_head;
199 struct PendingRequest *pending_req_tail;
202 * Number of pending requests
204 unsigned int num_pending_reqs;
207 * Pending replies DLL
209 struct PendingReply *pending_rep_head;
210 struct PendingReply *pending_rep_tail;
213 * Number of pending replies
215 unsigned int num_pending_reps;
218 * Number of received PeerIDs
220 unsigned int num_recv_ids;
225 * Information for all the peers.
227 static struct RPSPeer *rps_peers;
230 * Peermap to get the index of a given peer ID quick.
232 static struct GNUNET_CONTAINER_MultiPeerMap *peer_map;
237 static struct GNUNET_PeerIdentity *rps_peer_ids;
240 * ID of the targeted peer.
242 static struct GNUNET_PeerIdentity *target_peer;
245 * ID of the peer that requests for the evaluation.
247 static struct RPSPeer *eval_peer;
250 * Number of online peers.
252 static unsigned int num_peers_online;
255 * Return value from 'main'.
260 * Identifier for the churn task that runs periodically
262 static struct GNUNET_SCHEDULER_Task *churn_task;
265 * Called to initialise the given RPSPeer
267 typedef void (*InitPeer) (struct RPSPeer *rps_peer);
270 * Called directly after connecting to the service
272 typedef void (*PreTest) (void *cls, struct GNUNET_RPS_Handle *h);
275 * Called from within #rps_connect_complete_cb ()
276 * Executes functions to test the api/service
278 typedef void (*MainTest) (struct RPSPeer *rps_peer);
281 * Callback called once the requested random peers are available
283 typedef void (*ReplyHandle) (void *cls,
285 const struct GNUNET_PeerIdentity *recv_peers);
288 * Called directly before disconnecting from the service
290 typedef void (*PostTest) (void *cls, struct GNUNET_RPS_Handle *h);
293 * Function called after disconnect to evaluate test success
295 typedef int (*EvaluationCallback) (void);
299 * Structure to define a single test
309 * Called to initialise peer
314 * Called directly after connecting to the service
319 * Function to execute the functions to be tested
324 * Callback called once the requested peers are available
326 ReplyHandle reply_handle;
329 * Called directly before disconnecting from the service
334 * Function to evaluate the test results
336 EvaluationCallback eval_cb;
341 uint32_t request_interval;
344 * Number of Requests to make.
346 uint32_t num_requests;
350 * Are we shutting down?
352 static int in_shutdown;
355 * Append arguments to file
358 tofile_ (const char *file_name, const char *line)
360 struct GNUNET_DISK_FileHandle *f;
361 /* char output_buffer[512]; */
366 if (NULL == (f = GNUNET_DISK_file_open (file_name,
367 GNUNET_DISK_OPEN_APPEND |
368 GNUNET_DISK_OPEN_WRITE |
369 GNUNET_DISK_OPEN_CREATE,
370 GNUNET_DISK_PERM_USER_READ |
371 GNUNET_DISK_PERM_USER_WRITE |
372 GNUNET_DISK_PERM_GROUP_READ |
373 GNUNET_DISK_PERM_OTHER_READ)))
375 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
376 "Not able to open file %s\n",
380 /* size = GNUNET_snprintf (output_buffer,
381 sizeof (output_buffer),
383 GNUNET_TIME_absolute_get ().abs_value_us,
387 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
388 "Failed to write string to buffer (size: %i)\n",
393 size = strlen (line) * sizeof (char);
395 size2 = GNUNET_DISK_file_write (f, line, size);
398 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
399 "Unable to write to file! (Size: %lu, size2: %lu)\n",
402 if (GNUNET_YES != GNUNET_DISK_file_close (f))
404 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
405 "Unable to close file\n");
410 if (GNUNET_YES != GNUNET_DISK_file_close (f))
412 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
413 "Unable to close file\n");
418 * This function is used to facilitate writing important information to disk
420 #define tofile(file_name, ...) do {\
423 size = GNUNET_snprintf(tmp_buf,sizeof(tmp_buf),__VA_ARGS__);\
425 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,\
426 "Failed to create tmp_buf\n");\
428 tofile_(file_name,tmp_buf);\
433 * Write the ids and their according index in the given array to a file
437 ids_to_file (char *file_name,
438 struct GNUNET_PeerIdentity *peer_ids,
439 unsigned int num_peer_ids)
443 for (i=0 ; i < num_peer_ids ; i++)
448 GNUNET_i2s_full (&peer_ids[i]));
453 * Test the success of a single test
463 for (i = 0; i < num_peers; i++)
465 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
466 "%u. peer [%s] received %u of %u expected peer_ids: %i\n",
468 GNUNET_i2s (rps_peers[i].peer_id),
469 rps_peers[i].num_recv_ids,
470 rps_peers[i].num_ids_to_request,
471 (rps_peers[i].num_ids_to_request == rps_peers[i].num_recv_ids));
472 tmp_ok &= (rps_peers[i].num_ids_to_request == rps_peers[i].num_recv_ids);
474 return tmp_ok? 0 : 1;
479 * Creates an oplist entry and adds it to the oplist DLL
481 static struct OpListEntry *
484 struct OpListEntry *entry;
486 entry = GNUNET_new (struct OpListEntry);
487 GNUNET_CONTAINER_DLL_insert_tail (oplist_head, oplist_tail, entry);
493 * Task run on timeout to shut everything down.
496 shutdown_op (void *cls)
500 in_shutdown = GNUNET_YES;
501 if (NULL != churn_task)
503 GNUNET_SCHEDULER_cancel (churn_task);
506 for (i = 0; i < num_peers; i++)
507 if (NULL != rps_peers[i].op)
508 GNUNET_TESTBED_operation_done (rps_peers[i].op);
509 GNUNET_SCHEDULER_shutdown ();
517 seed_peers (void *cls)
519 struct RPSPeer *peer = cls;
523 // TODO if malicious don't seed mal peers
524 amount = round (.5 * num_peers);
526 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Seeding peers:\n");
527 for (i = 0 ; i < amount ; i++)
528 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Seeding %u. peer: %s\n",
530 GNUNET_i2s (&rps_peer_ids[i]));
532 GNUNET_RPS_seed_ids (peer->rps_handle, amount, rps_peer_ids);
540 seed_peers_big (void *cls)
542 struct RPSPeer *peer = cls;
543 unsigned int seed_msg_size;
544 uint32_t num_peers_max;
548 seed_msg_size = 8; /* sizeof (struct GNUNET_RPS_CS_SeedMessage) */
549 num_peers_max = (GNUNET_SERVER_MAX_MESSAGE_SIZE - seed_msg_size) /
550 sizeof (struct GNUNET_PeerIdentity);
551 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
552 "Peers that fit in one seed msg; %u\n",
554 amount = num_peers_max + (0.5 * num_peers_max);
555 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
556 "Seeding many (%u) peers:\n",
558 struct GNUNET_PeerIdentity ids_to_seed[amount];
559 for (i = 0; i < amount; i++)
561 ids_to_seed[i] = *peer->peer_id;
562 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Seeding %u. peer: %s\n",
564 GNUNET_i2s (&ids_to_seed[i]));
567 GNUNET_RPS_seed_ids (peer->rps_handle, amount, ids_to_seed);
571 * Get the id of peer i.
574 info_cb (void *cb_cls,
575 struct GNUNET_TESTBED_Operation *op,
576 const struct GNUNET_TESTBED_PeerInformation *pinfo,
579 struct OpListEntry *entry = (struct OpListEntry *) cb_cls;
581 if (NULL == pinfo || NULL != emsg)
583 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Got Error: %s\n", emsg);
584 GNUNET_TESTBED_operation_done (entry->op);
588 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
591 GNUNET_i2s (pinfo->result.id));
593 rps_peer_ids[entry->index] = *(pinfo->result.id);
594 rps_peers[entry->index].peer_id = &rps_peer_ids[entry->index];
596 GNUNET_assert (GNUNET_OK ==
597 GNUNET_CONTAINER_multipeermap_put (peer_map,
598 &rps_peer_ids[entry->index],
599 &rps_peers[entry->index],
600 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
601 tofile ("/tmp/rps/peer_ids",
604 GNUNET_i2s_full (&rps_peer_ids[entry->index]));
606 GNUNET_CONTAINER_DLL_remove (oplist_head, oplist_tail, entry);
607 GNUNET_TESTBED_operation_done (entry->op);
613 * Callback to be called when RPS service connect operation is completed
615 * @param cls the callback closure from functions generating an operation
616 * @param op the operation that has been finished
617 * @param ca_result the RPS service handle returned from rps_connect_adapter
618 * @param emsg error message in case the operation has failed; will be NULL if
619 * operation has executed successfully.
622 rps_connect_complete_cb (void *cls,
623 struct GNUNET_TESTBED_Operation *op,
627 struct RPSPeer *rps_peer = cls;
628 struct GNUNET_RPS_Handle *rps = ca_result;
630 rps_peer->rps_handle = rps;
631 rps_peer->online = GNUNET_YES;
634 GNUNET_assert (op == rps_peer->op);
637 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
638 "Failed to connect to RPS service: %s\n",
641 GNUNET_SCHEDULER_shutdown ();
645 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started client successfully\n");
647 cur_test_run.main_test (rps_peer);
652 * Adapter function called to establish a connection to
656 * @param cfg configuration of the peer to connect to; will be available until
657 * GNUNET_TESTBED_operation_done() is called on the operation returned
658 * from GNUNET_TESTBED_service_connect()
659 * @return service handle to return in 'op_result', NULL on error
662 rps_connect_adapter (void *cls,
663 const struct GNUNET_CONFIGURATION_Handle *cfg)
665 struct GNUNET_RPS_Handle *h;
667 h = GNUNET_RPS_connect (cfg);
669 if (NULL != cur_test_run.pre_test)
670 cur_test_run.pre_test (cls, h);
677 * Adapter function called to destroy connection to
681 * @param op_result service handle returned from the connect adapter
684 rps_disconnect_adapter (void *cls,
687 struct RPSPeer *peer = cls;
688 struct GNUNET_RPS_Handle *h = op_result;
689 GNUNET_assert (NULL != peer);
690 GNUNET_RPS_disconnect (h);
691 peer->rps_handle = NULL;
695 /***********************************************************************
696 * Definition of tests
697 ***********************************************************************/
699 // TODO check whether tests can be stopped earlier
701 default_eval_cb (void)
713 * Initialise given RPSPeer
715 static void default_init_peer (struct RPSPeer *rps_peer)
717 rps_peer->num_ids_to_request = 1;
721 * Callback to call on receipt of a reply
724 * @param n number of peers
725 * @param recv_peers the received peers
728 default_reply_handle (void *cls,
730 const struct GNUNET_PeerIdentity *recv_peers)
732 struct RPSPeer *rps_peer;
733 struct PendingReply *pending_rep = (struct PendingReply *) cls;
736 rps_peer = pending_rep->rps_peer;
737 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_rep_head,
738 rps_peer->pending_rep_tail,
740 rps_peer->num_pending_reps--;
741 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
742 "[%s] got %" PRIu64 " peers:\n",
743 GNUNET_i2s (rps_peer->peer_id),
746 for (i = 0; i < n; i++)
748 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
751 GNUNET_i2s (&recv_peers[i]));
753 rps_peer->num_recv_ids++;
756 if (0 == evaluate ())
758 GNUNET_SCHEDULER_shutdown ();
763 * Request random peers.
766 request_peers (void *cls)
768 struct PendingRequest *pending_req = cls;
769 struct RPSPeer *rps_peer;
770 struct PendingReply *pending_rep;
772 if (GNUNET_YES == in_shutdown)
774 rps_peer = pending_req->rps_peer;
775 GNUNET_assert (1 <= rps_peer->num_pending_reqs);
776 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_req_head,
777 rps_peer->pending_req_tail,
779 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
780 "Requesting one peer\n");
781 pending_rep = GNUNET_new (struct PendingReply);
782 pending_rep->rps_peer = rps_peer;
783 pending_rep->req_handle = GNUNET_RPS_request_peers (rps_peer->rps_handle,
785 cur_test_run.reply_handle,
787 GNUNET_CONTAINER_DLL_insert_tail (rps_peer->pending_rep_head,
788 rps_peer->pending_rep_tail,
790 rps_peer->num_pending_reps++;
791 rps_peer->num_pending_reqs--;
795 cancel_pending_req (struct PendingRequest *pending_req)
797 struct RPSPeer *rps_peer;
799 rps_peer = pending_req->rps_peer;
800 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_req_head,
801 rps_peer->pending_req_tail,
803 rps_peer->num_pending_reqs--;
804 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
805 "Cancelling pending request\n");
806 GNUNET_SCHEDULER_cancel (pending_req->request_task);
807 GNUNET_free (pending_req);
811 cancel_request (struct PendingReply *pending_rep)
813 struct RPSPeer *rps_peer;
815 rps_peer = pending_rep->rps_peer;
816 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_rep_head,
817 rps_peer->pending_rep_tail,
819 rps_peer->num_pending_reps--;
820 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
821 "Cancelling request\n");
822 GNUNET_RPS_request_cancel (pending_rep->req_handle);
823 GNUNET_free (pending_rep);
830 cancel_request_cb (void *cls)
832 struct RPSPeer *rps_peer = cls;
833 struct PendingReply *pending_rep;
835 if (GNUNET_YES == in_shutdown)
837 pending_rep = rps_peer->pending_rep_head;
838 GNUNET_assert (1 <= rps_peer->num_pending_reps);
839 cancel_request (pending_rep);
844 * Schedule requests for peer @a rps_peer that have neither been scheduled, nor
845 * issued, nor replied
848 schedule_missing_requests (struct RPSPeer *rps_peer)
851 struct PendingRequest *pending_req;
853 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
854 "Scheduling %u - %u missing requests\n",
855 rps_peer->num_ids_to_request,
856 rps_peer->num_pending_reqs + rps_peer->num_pending_reps);
857 GNUNET_assert (rps_peer->num_pending_reqs + rps_peer->num_pending_reps <=
858 rps_peer->num_ids_to_request);
859 for (i = rps_peer->num_pending_reqs + rps_peer->num_pending_reps;
860 i < rps_peer->num_ids_to_request; i++)
862 pending_req = GNUNET_new (struct PendingRequest);
863 pending_req->rps_peer = rps_peer;
864 pending_req->request_task = GNUNET_SCHEDULER_add_delayed (
865 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
866 cur_test_run.request_interval * i),
869 GNUNET_CONTAINER_DLL_insert_tail (rps_peer->pending_req_head,
870 rps_peer->pending_req_tail,
872 rps_peer->num_pending_reqs++;
877 cancel_pending_req_rep (struct RPSPeer *rps_peer)
879 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
880 "Cancelling all (pending) requests.\n");
881 while (NULL != rps_peer->pending_req_head)
882 cancel_pending_req (rps_peer->pending_req_head);
883 GNUNET_assert (0 == rps_peer->num_pending_reqs);
884 while (NULL != rps_peer->pending_rep_head)
885 cancel_request (rps_peer->pending_rep_head);
886 GNUNET_assert (0 == rps_peer->num_pending_reps);
889 /***********************************
891 ***********************************/
894 * Initialise only non-mal RPSPeers
896 static void mal_init_peer (struct RPSPeer *rps_peer)
898 if (rps_peer->index >= round (portion * num_peers))
899 rps_peer->num_ids_to_request = 1;
903 mal_pre (void *cls, struct GNUNET_RPS_Handle *h)
905 #ifdef ENABLE_MALICIOUS
906 uint32_t num_mal_peers;
907 struct RPSPeer *rps_peer = (struct RPSPeer *) cls;
909 GNUNET_assert ( (1 >= portion) &&
911 num_mal_peers = round (portion * num_peers);
913 if (rps_peer->index < num_mal_peers)
915 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
916 "%u. peer [%s] of %" PRIu32 " malicious peers turning malicious\n",
918 GNUNET_i2s (rps_peer->peer_id),
921 GNUNET_RPS_act_malicious (h, mal_type, num_mal_peers,
922 rps_peer_ids, target_peer);
924 #endif /* ENABLE_MALICIOUS */
928 mal_cb (struct RPSPeer *rps_peer)
930 uint32_t num_mal_peers;
932 #ifdef ENABLE_MALICIOUS
933 GNUNET_assert ( (1 >= portion) &&
935 num_mal_peers = round (portion * num_peers);
937 if (rps_peer->index >= num_mal_peers)
938 { /* It's useless to ask a malicious peer about a random sample -
940 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
941 seed_peers, rps_peer);
942 schedule_missing_requests (rps_peer);
944 #endif /* ENABLE_MALICIOUS */
948 /***********************************
950 ***********************************/
952 single_req_cb (struct RPSPeer *rps_peer)
954 schedule_missing_requests (rps_peer);
957 /***********************************
959 ***********************************/
961 delay_req_cb (struct RPSPeer *rps_peer)
963 schedule_missing_requests (rps_peer);
966 /***********************************
968 ***********************************/
970 seed_cb (struct RPSPeer *rps_peer)
972 GNUNET_SCHEDULER_add_delayed (
973 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10),
974 seed_peers, rps_peer);
977 /***********************************
979 ***********************************/
981 seed_big_cb (struct RPSPeer *rps_peer)
983 // TODO test seeding > GNUNET_SERVER_MAX_MESSAGE_SIZE peers
984 GNUNET_SCHEDULER_add_delayed (
985 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
986 seed_peers_big, rps_peer);
989 /***********************************
991 ***********************************/
993 single_peer_seed_cb (struct RPSPeer *rps_peer)
998 /***********************************
1000 ***********************************/
1002 seed_req_cb (struct RPSPeer *rps_peer)
1004 GNUNET_SCHEDULER_add_delayed (
1005 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1006 seed_peers, rps_peer);
1007 schedule_missing_requests (rps_peer);
1010 //TODO start big mal
1012 /***********************************
1014 ***********************************/
1016 req_cancel_cb (struct RPSPeer *rps_peer)
1018 schedule_missing_requests (rps_peer);
1019 GNUNET_SCHEDULER_add_delayed (
1020 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
1021 (cur_test_run.request_interval + 1)),
1022 cancel_request_cb, rps_peer);
1025 /***********************************
1027 ***********************************/
1030 * Callback to be called when RPS service is started or stopped at peers
1033 * @param op the operation handle
1034 * @param emsg NULL on success; otherwise an error description
1037 churn_cb (void *cls,
1038 struct GNUNET_TESTBED_Operation *op,
1042 struct OpListEntry *entry = cls;
1044 GNUNET_TESTBED_operation_done (entry->op);
1047 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start/stop RPS at a peer\n");
1048 GNUNET_SCHEDULER_shutdown ();
1051 GNUNET_assert (0 != entry->delta);
1053 num_peers_online += entry->delta;
1055 if (0 > entry->delta)
1056 { /* Peer hopefully just went offline */
1057 if (GNUNET_YES != rps_peers[entry->index].online)
1059 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1060 "peer %s was expected to go offline but is still marked as online\n",
1061 GNUNET_i2s (rps_peers[entry->index].peer_id));
1066 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1067 "peer %s probably went offline as expected\n",
1068 GNUNET_i2s (rps_peers[entry->index].peer_id));
1070 rps_peers[entry->index].online = GNUNET_NO;
1073 else if (0 < entry->delta)
1074 { /* Peer hopefully just went online */
1075 if (GNUNET_NO != rps_peers[entry->index].online)
1077 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1078 "peer %s was expected to go online but is still marked as offline\n",
1079 GNUNET_i2s (rps_peers[entry->index].peer_id));
1084 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1085 "peer %s probably went online as expected\n",
1086 GNUNET_i2s (rps_peers[entry->index].peer_id));
1087 if (NULL != cur_test_run.pre_test)
1089 cur_test_run.pre_test (&rps_peers[entry->index],
1090 rps_peers[entry->index].rps_handle);
1091 schedule_missing_requests (&rps_peers[entry->index]);
1094 rps_peers[entry->index].online = GNUNET_YES;
1097 GNUNET_CONTAINER_DLL_remove (oplist_head, oplist_tail, entry);
1098 GNUNET_free (entry);
1099 //if (num_peers_in_round[current_round] == peers_running)
1104 manage_service_wrapper (unsigned int i, unsigned int j, int delta,
1105 double prob_go_on_off)
1107 struct OpListEntry *entry;
1110 prob = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1112 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1113 "%u. selected peer (%u: %s) is %s.\n",
1116 GNUNET_i2s (rps_peers[j].peer_id),
1117 (0 > delta) ? "online" : "offline");
1118 if (prob < prob_go_on_off * UINT32_MAX)
1120 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1122 GNUNET_i2s (rps_peers[j].peer_id),
1123 (0 > delta) ? "offline" : "online");
1126 cancel_pending_req_rep (&rps_peers[j]);
1127 entry = make_oplist_entry ();
1128 entry->delta = delta;
1130 entry->op = GNUNET_TESTBED_peer_manage_service (NULL,
1135 (0 > delta) ? 0 : 1);
1145 double portion_online;
1146 unsigned int *permut;
1147 double prob_go_offline;
1148 double portion_go_online;
1149 double portion_go_offline;
1151 /* Compute the probability for an online peer to go offline
1153 portion_online = num_peers_online * 1.0 / num_peers;
1154 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1155 "Portion online: %f\n",
1157 portion_go_online = ((1 - portion_online) * .5 * .66);
1158 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1159 "Portion that should go online: %f\n",
1161 portion_go_offline = (portion_online + portion_go_online) - .75;
1162 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1163 "Portion that probably goes offline: %f\n",
1164 portion_go_offline);
1165 prob_go_offline = portion_go_offline / (portion_online * .5);
1166 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1167 "Probability of a selected online peer to go offline: %f\n",
1170 permut = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
1171 (unsigned int) num_peers);
1173 /* Go over 50% randomly chosen peers */
1174 for (i = 0; i < .5 * num_peers; i++)
1178 /* If online, shut down with certain probability */
1179 if (GNUNET_YES == rps_peers[j].online)
1181 manage_service_wrapper (i, j, -1, prob_go_offline);
1184 /* If offline, restart with certain probability */
1185 else if (GNUNET_NO == rps_peers[j].online)
1187 manage_service_wrapper (i, j, 1, 0.66);
1191 GNUNET_free (permut);
1193 churn_task = GNUNET_SCHEDULER_add_delayed (
1194 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1201 * Initialise given RPSPeer
1203 static void profiler_init_peer (struct RPSPeer *rps_peer)
1205 if (num_peers - 1 == rps_peer->index)
1206 rps_peer->num_ids_to_request = cur_test_run.num_requests;
1211 * Callback to call on receipt of a reply
1213 * @param cls closure
1214 * @param n number of peers
1215 * @param recv_peers the received peers
1218 profiler_reply_handle (void *cls,
1220 const struct GNUNET_PeerIdentity *recv_peers)
1222 struct RPSPeer *rps_peer;
1223 struct RPSPeer *rcv_rps_peer;
1227 struct PendingReply *pending_rep = (struct PendingReply *) cls;
1229 rps_peer = pending_rep->rps_peer;
1230 file_name = "/tmp/rps/received_ids";
1231 file_name_dh = "/tmp/rps/diehard_input";
1232 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1233 "[%s] got %" PRIu64 " peers:\n",
1234 GNUNET_i2s (rps_peer->peer_id),
1236 for (i = 0; i < n; i++)
1238 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1241 GNUNET_i2s (&recv_peers[i]));
1244 GNUNET_i2s_full (&recv_peers[i]));
1245 rcv_rps_peer = GNUNET_CONTAINER_multipeermap_get (peer_map, &recv_peers[i]);
1246 GNUNET_assert (NULL != rcv_rps_peer);
1247 tofile (file_name_dh,
1249 (uint32_t) rcv_rps_peer->index);
1251 default_reply_handle (cls, n, recv_peers);
1256 profiler_cb (struct RPSPeer *rps_peer)
1259 if (NULL == churn_task)
1261 churn_task = GNUNET_SCHEDULER_add_delayed (
1262 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5),
1267 /* Only request peer ids at one peer.
1268 * (It's the before-last because last one is target of the focussed attack.)
1270 if (eval_peer == rps_peer)
1271 schedule_missing_requests (rps_peer);
1275 * Function called from #profiler_eval with a filename.
1277 * @param cls closure
1278 * @param filename complete filename (absolute path)
1279 * @return #GNUNET_OK to continue to iterate,
1280 * #GNUNET_NO to stop iteration with no error,
1281 * #GNUNET_SYSERR to abort iteration with error!
1284 file_name_cb (void *cls, const char *filename)
1286 if (NULL != strstr (filename, "sampler_el"))
1288 struct RPS_SamplerElement *s_elem;
1289 struct GNUNET_CRYPTO_AuthKey auth_key;
1290 const char *key_char;
1293 key_char = filename + 20; /* Length of "/tmp/rps/sampler_el-" */
1294 tofile (filename, "--------------------------\n");
1296 auth_key = string_to_auth_key (key_char);
1297 s_elem = RPS_sampler_elem_create ();
1298 RPS_sampler_elem_set (s_elem, auth_key);
1300 for (i = 0; i < num_peers; i++)
1302 RPS_sampler_elem_next (s_elem, &rps_peer_ids[i]);
1304 RPS_sampler_elem_destroy (s_elem);
1310 * This is run after the test finished.
1312 * Compute all perfect samples.
1315 profiler_eval (void)
1317 /* Compute perfect sample for each sampler element */
1318 if (-1 == GNUNET_DISK_directory_scan ("/tmp/rps/", file_name_cb, NULL))
1320 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Scan of directory failed\n");
1327 /***********************************************************************
1328 * /Definition of tests
1329 ***********************************************************************/
1333 * Actual "main" function for the testcase.
1335 * @param cls closure
1336 * @param h the run handle
1337 * @param n_peers number of peers in 'peers'
1338 * @param peers handle to peers run in the testbed
1339 * @param links_succeeded the number of overlay link connection attempts that
1341 * @param links_failed the number of overlay link connection attempts that
1346 struct GNUNET_TESTBED_RunHandle *h,
1347 unsigned int n_peers,
1348 struct GNUNET_TESTBED_Peer **peers,
1349 unsigned int links_succeeded,
1350 unsigned int links_failed)
1353 struct OpListEntry *entry;
1354 uint32_t num_mal_peers;
1356 testbed_peers = peers;
1357 num_peers_online = 0;
1358 for (i = 0; i < num_peers; i++)
1360 entry = make_oplist_entry ();
1362 rps_peers[i].index = i;
1363 if (NULL != cur_test_run.init_peer)
1364 cur_test_run.init_peer (&rps_peers[i]);
1365 entry->op = GNUNET_TESTBED_peer_get_information (peers[i],
1366 GNUNET_TESTBED_PIT_IDENTITY,
1371 num_mal_peers = round (portion * num_peers);
1372 GNUNET_assert (num_peers == n_peers);
1373 for (i = 0; i < n_peers; i++)
1375 rps_peers[i].index = i;
1376 if ( (rps_peers[i].num_recv_ids < rps_peers[i].num_ids_to_request) ||
1377 (i < num_mal_peers) )
1380 GNUNET_TESTBED_service_connect (&rps_peers[i],
1383 &rps_connect_complete_cb,
1385 &rps_connect_adapter,
1386 &rps_disconnect_adapter,
1391 if (NULL != churn_task)
1392 GNUNET_SCHEDULER_cancel (churn_task);
1393 GNUNET_SCHEDULER_add_delayed (timeout, &shutdown_op, NULL);
1398 * Entry point for the testcase, sets up the testbed.
1400 * @param argc unused
1401 * @param argv unused
1402 * @return 0 on success
1405 main (int argc, char *argv[])
1410 cur_test_run.name = "test-rps-default";
1411 cur_test_run.init_peer = default_init_peer;
1412 cur_test_run.pre_test = NULL;
1413 cur_test_run.reply_handle = default_reply_handle;
1414 cur_test_run.eval_cb = default_eval_cb;
1416 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
1418 if (strstr (argv[0], "malicious") != NULL)
1420 cur_test_run.pre_test = mal_pre;
1421 cur_test_run.main_test = mal_cb;
1422 cur_test_run.init_peer = mal_init_peer;
1424 if (strstr (argv[0], "_1") != NULL)
1426 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 1\n");
1427 cur_test_run.name = "test-rps-malicious_1";
1430 else if (strstr (argv[0], "_2") != NULL)
1432 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 2\n");
1433 cur_test_run.name = "test-rps-malicious_2";
1436 else if (strstr (argv[0], "_3") != NULL)
1438 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 3\n");
1439 cur_test_run.name = "test-rps-malicious_3";
1444 else if (strstr (argv[0], "_single_req") != NULL)
1446 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Test single request\n");
1447 cur_test_run.name = "test-rps-single-req";
1448 cur_test_run.main_test = single_req_cb;
1451 else if (strstr (argv[0], "_delayed_reqs") != NULL)
1453 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test delayed requests\n");
1454 cur_test_run.name = "test-rps-delayed-reqs";
1455 cur_test_run.main_test = delay_req_cb;
1458 else if (strstr (argv[0], "_seed_big") != NULL)
1460 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding (num_peers > GNUNET_SERVER_MAX_MESSAGE_SIZE)\n");
1462 cur_test_run.name = "test-rps-seed-big";
1463 cur_test_run.main_test = seed_big_cb;
1464 cur_test_run.eval_cb = no_eval;
1465 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1468 else if (strstr (argv[0], "_single_peer_seed") != NULL)
1470 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding and requesting on a single peer\n");
1471 cur_test_run.name = "test-rps-single-peer-seed";
1472 cur_test_run.main_test = single_peer_seed_cb;
1475 else if (strstr (argv[0], "_seed_request") != NULL)
1477 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding and requesting on multiple peers\n");
1478 cur_test_run.name = "test-rps-seed-request";
1479 cur_test_run.main_test = seed_req_cb;
1482 else if (strstr (argv[0], "_seed") != NULL)
1484 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding\n");
1485 cur_test_run.name = "test-rps-seed";
1486 cur_test_run.main_test = seed_cb;
1487 cur_test_run.eval_cb = no_eval;
1490 else if (strstr (argv[0], "_req_cancel") != NULL)
1492 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test cancelling a request\n");
1493 cur_test_run.name = "test-rps-req-cancel";
1495 cur_test_run.main_test = req_cancel_cb;
1496 cur_test_run.eval_cb = no_eval;
1497 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1500 else if (strstr (argv[0], "profiler") != NULL)
1502 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "This is the profiler\n");
1503 cur_test_run.name = "test-rps-profiler";
1506 cur_test_run.init_peer = profiler_init_peer;
1507 cur_test_run.pre_test = mal_pre;
1508 cur_test_run.main_test = profiler_cb;
1509 cur_test_run.reply_handle = profiler_reply_handle;
1510 cur_test_run.eval_cb = profiler_eval;
1511 cur_test_run.request_interval = 2;
1512 cur_test_run.num_requests = 5;
1513 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 90);
1515 /* 'Clean' directory */
1516 (void) GNUNET_DISK_directory_remove ("/tmp/rps/");
1517 GNUNET_DISK_directory_create ("/tmp/rps/");
1520 rps_peers = GNUNET_new_array (num_peers, struct RPSPeer);
1521 peer_map = GNUNET_CONTAINER_multipeermap_create (num_peers, GNUNET_NO);
1522 rps_peer_ids = GNUNET_new_array (num_peers, struct GNUNET_PeerIdentity);
1523 if ( (2 == mal_type) ||
1525 target_peer = &rps_peer_ids[num_peers - 2];
1526 if (profiler_eval == cur_test_run.eval_cb)
1527 eval_peer = &rps_peers[num_peers - 1]; /* FIXME: eval_peer could be a
1528 malicious peer if not careful
1529 with the malicious portion */
1532 (void) GNUNET_TESTBED_test_run (cur_test_run.name,
1538 ret_value = cur_test_run.eval_cb();
1539 GNUNET_free (rps_peers );
1540 GNUNET_free (rps_peer_ids);
1541 GNUNET_CONTAINER_multipeermap_destroy (peer_map);
1545 /* end of test_rps_multipeer.c */