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21 * @file rps/test_rps.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 RPS service at the peer set this to 1 (start)
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 during the whole test
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 * @brief Executes functions to test the api/service for a given peer
277 * Called from within #rps_connect_complete_cb ()
278 * Implemented by #churn_test_cb, #profiler_cb, #mal_cb, #single_req_cb,
279 * #delay_req_cb, #seed_big_cb, #single_peer_seed_cb, #seed_cb, #req_cancel_cb
281 * @param rps_peer the peer the task runs on
283 typedef void (*MainTest) (struct RPSPeer *rps_peer);
286 * Callback called once the requested random peers are available
288 typedef void (*ReplyHandle) (void *cls,
290 const struct GNUNET_PeerIdentity *recv_peers);
293 * Called directly before disconnecting from the service
295 typedef void (*PostTest) (void *cls, struct GNUNET_RPS_Handle *h);
298 * Function called after disconnect to evaluate test success
300 typedef int (*EvaluationCallback) (void);
304 * Structure to define a single test
314 * Called with a single peer in order to initialise that peer
319 * Called directly after connecting to the service
324 * Main function for each peer
329 * Callback called once the requested peers are available
331 ReplyHandle reply_handle;
334 * Called directly before disconnecting from the service
339 * Function to evaluate the test results
341 EvaluationCallback eval_cb;
346 uint32_t request_interval;
349 * Number of Requests to make.
351 uint32_t num_requests;
360 * Are we shutting down?
362 static int in_shutdown;
365 * Append arguments to file
368 tofile_ (const char *file_name, const char *line)
370 struct GNUNET_DISK_FileHandle *f;
371 /* char output_buffer[512]; */
376 if (NULL == (f = GNUNET_DISK_file_open (file_name,
377 GNUNET_DISK_OPEN_APPEND |
378 GNUNET_DISK_OPEN_WRITE |
379 GNUNET_DISK_OPEN_CREATE,
380 GNUNET_DISK_PERM_USER_READ |
381 GNUNET_DISK_PERM_USER_WRITE |
382 GNUNET_DISK_PERM_GROUP_READ |
383 GNUNET_DISK_PERM_OTHER_READ)))
385 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
386 "Not able to open file %s\n",
390 /* size = GNUNET_snprintf (output_buffer,
391 sizeof (output_buffer),
393 GNUNET_TIME_absolute_get ().abs_value_us,
397 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
398 "Failed to write string to buffer (size: %i)\n",
403 size = strlen (line) * sizeof (char);
405 size2 = GNUNET_DISK_file_write (f, line, size);
408 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
409 "Unable to write to file! (Size: %lu, size2: %lu)\n",
412 if (GNUNET_YES != GNUNET_DISK_file_close (f))
414 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
415 "Unable to close file\n");
420 if (GNUNET_YES != GNUNET_DISK_file_close (f))
422 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
423 "Unable to close file\n");
428 * This function is used to facilitate writing important information to disk
430 #define tofile(file_name, ...) do {\
433 size = GNUNET_snprintf(tmp_buf,sizeof(tmp_buf),__VA_ARGS__);\
435 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,\
436 "Failed to create tmp_buf\n");\
438 tofile_(file_name,tmp_buf);\
443 * Write the ids and their according index in the given array to a file
447 ids_to_file (char *file_name,
448 struct GNUNET_PeerIdentity *peer_ids,
449 unsigned int num_peer_ids)
453 for (i=0 ; i < num_peer_ids ; i++)
458 GNUNET_i2s_full (&peer_ids[i]));
463 * Test the success of a single test
473 for (i = 0; i < num_peers; i++)
475 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
476 "%u. peer [%s] received %u of %u expected peer_ids: %i\n",
478 GNUNET_i2s (rps_peers[i].peer_id),
479 rps_peers[i].num_recv_ids,
480 rps_peers[i].num_ids_to_request,
481 (rps_peers[i].num_ids_to_request == rps_peers[i].num_recv_ids));
482 tmp_ok &= (rps_peers[i].num_ids_to_request == rps_peers[i].num_recv_ids);
484 return tmp_ok? 0 : 1;
489 * Creates an oplist entry and adds it to the oplist DLL
491 static struct OpListEntry *
494 struct OpListEntry *entry;
496 entry = GNUNET_new (struct OpListEntry);
497 GNUNET_CONTAINER_DLL_insert_tail (oplist_head, oplist_tail, entry);
503 * Task run on timeout to shut everything down.
506 shutdown_op (void *cls)
510 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
511 "Shutdown task scheduled, going down.\n");
512 in_shutdown = GNUNET_YES;
513 if (NULL != churn_task)
515 GNUNET_SCHEDULER_cancel (churn_task);
518 for (i = 0; i < num_peers; i++)
519 if (NULL != rps_peers[i].op)
520 GNUNET_TESTBED_operation_done (rps_peers[i].op);
521 GNUNET_SCHEDULER_shutdown ();
529 seed_peers (void *cls)
531 struct RPSPeer *peer = cls;
535 // TODO if malicious don't seed mal peers
536 amount = round (.5 * num_peers);
538 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Seeding peers:\n");
539 for (i = 0 ; i < amount ; i++)
540 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Seeding %u. peer: %s\n",
542 GNUNET_i2s (&rps_peer_ids[i]));
544 GNUNET_RPS_seed_ids (peer->rps_handle, amount, rps_peer_ids);
552 seed_peers_big (void *cls)
554 struct RPSPeer *peer = cls;
555 unsigned int seed_msg_size;
556 uint32_t num_peers_max;
560 seed_msg_size = 8; /* sizeof (struct GNUNET_RPS_CS_SeedMessage) */
561 num_peers_max = (GNUNET_MAX_MESSAGE_SIZE - seed_msg_size) /
562 sizeof (struct GNUNET_PeerIdentity);
563 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
564 "Peers that fit in one seed msg; %u\n",
566 amount = num_peers_max + (0.5 * num_peers_max);
567 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
568 "Seeding many (%u) peers:\n",
570 struct GNUNET_PeerIdentity ids_to_seed[amount];
571 for (i = 0; i < amount; i++)
573 ids_to_seed[i] = *peer->peer_id;
574 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Seeding %u. peer: %s\n",
576 GNUNET_i2s (&ids_to_seed[i]));
579 GNUNET_RPS_seed_ids (peer->rps_handle, amount, ids_to_seed);
583 * Get the id of peer i.
586 info_cb (void *cb_cls,
587 struct GNUNET_TESTBED_Operation *op,
588 const struct GNUNET_TESTBED_PeerInformation *pinfo,
591 struct OpListEntry *entry = (struct OpListEntry *) cb_cls;
593 if (GNUNET_YES == in_shutdown)
598 if (NULL == pinfo || NULL != emsg)
600 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Got Error: %s\n", emsg);
601 GNUNET_TESTBED_operation_done (entry->op);
605 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
608 GNUNET_i2s (pinfo->result.id));
610 rps_peer_ids[entry->index] = *(pinfo->result.id);
611 rps_peers[entry->index].peer_id = &rps_peer_ids[entry->index];
613 GNUNET_assert (GNUNET_OK ==
614 GNUNET_CONTAINER_multipeermap_put (peer_map,
615 &rps_peer_ids[entry->index],
616 &rps_peers[entry->index],
617 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
618 tofile ("/tmp/rps/peer_ids",
621 GNUNET_i2s_full (&rps_peer_ids[entry->index]));
623 GNUNET_CONTAINER_DLL_remove (oplist_head, oplist_tail, entry);
624 GNUNET_TESTBED_operation_done (entry->op);
630 * Callback to be called when RPS service connect operation is completed
632 * @param cls the callback closure from functions generating an operation
633 * @param op the operation that has been finished
634 * @param ca_result the RPS service handle returned from rps_connect_adapter
635 * @param emsg error message in case the operation has failed; will be NULL if
636 * operation has executed successfully.
639 rps_connect_complete_cb (void *cls,
640 struct GNUNET_TESTBED_Operation *op,
644 struct RPSPeer *rps_peer = cls;
645 struct GNUNET_RPS_Handle *rps = ca_result;
647 if (GNUNET_YES == in_shutdown)
652 rps_peer->rps_handle = rps;
653 rps_peer->online = GNUNET_YES;
656 GNUNET_assert (op == rps_peer->op);
659 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
660 "Failed to connect to RPS service: %s\n",
663 GNUNET_SCHEDULER_shutdown ();
667 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started client successfully\n");
669 cur_test_run.main_test (rps_peer);
674 * Adapter function called to establish a connection to
678 * @param cfg configuration of the peer to connect to; will be available until
679 * GNUNET_TESTBED_operation_done() is called on the operation returned
680 * from GNUNET_TESTBED_service_connect()
681 * @return service handle to return in 'op_result', NULL on error
684 rps_connect_adapter (void *cls,
685 const struct GNUNET_CONFIGURATION_Handle *cfg)
687 struct GNUNET_RPS_Handle *h;
689 h = GNUNET_RPS_connect (cfg);
691 if (NULL != cur_test_run.pre_test)
692 cur_test_run.pre_test (cls, h);
699 * Adapter function called to destroy connection to
703 * @param op_result service handle returned from the connect adapter
706 rps_disconnect_adapter (void *cls,
709 struct RPSPeer *peer = cls;
710 struct GNUNET_RPS_Handle *h = op_result;
711 GNUNET_assert (NULL != peer);
712 GNUNET_RPS_disconnect (h);
713 peer->rps_handle = NULL;
717 /***********************************************************************
718 * Definition of tests
719 ***********************************************************************/
721 // TODO check whether tests can be stopped earlier
723 default_eval_cb (void)
735 * Initialise given RPSPeer
737 static void default_init_peer (struct RPSPeer *rps_peer)
739 rps_peer->num_ids_to_request = 1;
743 * Callback to call on receipt of a reply
746 * @param n number of peers
747 * @param recv_peers the received peers
750 default_reply_handle (void *cls,
752 const struct GNUNET_PeerIdentity *recv_peers)
754 struct RPSPeer *rps_peer;
755 struct PendingReply *pending_rep = (struct PendingReply *) cls;
758 rps_peer = pending_rep->rps_peer;
759 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_rep_head,
760 rps_peer->pending_rep_tail,
762 rps_peer->num_pending_reps--;
763 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
764 "[%s] got %" PRIu64 " peers:\n",
765 GNUNET_i2s (rps_peer->peer_id),
768 for (i = 0; i < n; i++)
770 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
773 GNUNET_i2s (&recv_peers[i]));
775 rps_peer->num_recv_ids++;
778 if (0 == evaluate ())
780 GNUNET_SCHEDULER_shutdown ();
785 * Request random peers.
788 request_peers (void *cls)
790 struct PendingRequest *pending_req = cls;
791 struct RPSPeer *rps_peer;
792 struct PendingReply *pending_rep;
794 if (GNUNET_YES == in_shutdown)
796 rps_peer = pending_req->rps_peer;
797 GNUNET_assert (1 <= rps_peer->num_pending_reqs);
798 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_req_head,
799 rps_peer->pending_req_tail,
801 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
802 "Requesting one peer\n");
803 pending_rep = GNUNET_new (struct PendingReply);
804 pending_rep->rps_peer = rps_peer;
805 pending_rep->req_handle = GNUNET_RPS_request_peers (rps_peer->rps_handle,
807 cur_test_run.reply_handle,
809 GNUNET_CONTAINER_DLL_insert_tail (rps_peer->pending_rep_head,
810 rps_peer->pending_rep_tail,
812 rps_peer->num_pending_reps++;
813 rps_peer->num_pending_reqs--;
817 cancel_pending_req (struct PendingRequest *pending_req)
819 struct RPSPeer *rps_peer;
821 rps_peer = pending_req->rps_peer;
822 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_req_head,
823 rps_peer->pending_req_tail,
825 rps_peer->num_pending_reqs--;
826 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
827 "Cancelling pending request\n");
828 GNUNET_SCHEDULER_cancel (pending_req->request_task);
829 GNUNET_free (pending_req);
833 cancel_request (struct PendingReply *pending_rep)
835 struct RPSPeer *rps_peer;
837 rps_peer = pending_rep->rps_peer;
838 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_rep_head,
839 rps_peer->pending_rep_tail,
841 rps_peer->num_pending_reps--;
842 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
843 "Cancelling request\n");
844 GNUNET_RPS_request_cancel (pending_rep->req_handle);
845 GNUNET_free (pending_rep);
852 cancel_request_cb (void *cls)
854 struct RPSPeer *rps_peer = cls;
855 struct PendingReply *pending_rep;
857 if (GNUNET_YES == in_shutdown)
859 pending_rep = rps_peer->pending_rep_head;
860 GNUNET_assert (1 <= rps_peer->num_pending_reps);
861 cancel_request (pending_rep);
866 * Schedule requests for peer @a rps_peer that have neither been scheduled, nor
867 * issued, nor replied
870 schedule_missing_requests (struct RPSPeer *rps_peer)
873 struct PendingRequest *pending_req;
875 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
876 "Scheduling %u - %u missing requests\n",
877 rps_peer->num_ids_to_request,
878 rps_peer->num_pending_reqs + rps_peer->num_pending_reps);
879 GNUNET_assert (rps_peer->num_pending_reqs + rps_peer->num_pending_reps <=
880 rps_peer->num_ids_to_request);
881 for (i = rps_peer->num_pending_reqs + rps_peer->num_pending_reps;
882 i < rps_peer->num_ids_to_request; i++)
884 pending_req = GNUNET_new (struct PendingRequest);
885 pending_req->rps_peer = rps_peer;
886 pending_req->request_task = GNUNET_SCHEDULER_add_delayed (
887 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
888 cur_test_run.request_interval * i),
891 GNUNET_CONTAINER_DLL_insert_tail (rps_peer->pending_req_head,
892 rps_peer->pending_req_tail,
894 rps_peer->num_pending_reqs++;
899 cancel_pending_req_rep (struct RPSPeer *rps_peer)
901 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
902 "Cancelling all (pending) requests.\n");
903 while (NULL != rps_peer->pending_req_head)
904 cancel_pending_req (rps_peer->pending_req_head);
905 GNUNET_assert (0 == rps_peer->num_pending_reqs);
906 while (NULL != rps_peer->pending_rep_head)
907 cancel_request (rps_peer->pending_rep_head);
908 GNUNET_assert (0 == rps_peer->num_pending_reps);
911 /***********************************
913 ***********************************/
916 * Initialise only non-mal RPSPeers
918 static void mal_init_peer (struct RPSPeer *rps_peer)
920 if (rps_peer->index >= round (portion * num_peers))
921 rps_peer->num_ids_to_request = 1;
925 mal_pre (void *cls, struct GNUNET_RPS_Handle *h)
927 #ifdef ENABLE_MALICIOUS
928 uint32_t num_mal_peers;
929 struct RPSPeer *rps_peer = (struct RPSPeer *) cls;
931 GNUNET_assert ( (1 >= portion) &&
933 num_mal_peers = round (portion * num_peers);
935 if (rps_peer->index < num_mal_peers)
937 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
938 "%u. peer [%s] of %" PRIu32 " malicious peers turning malicious\n",
940 GNUNET_i2s (rps_peer->peer_id),
943 GNUNET_RPS_act_malicious (h, mal_type, num_mal_peers,
944 rps_peer_ids, target_peer);
946 #endif /* ENABLE_MALICIOUS */
950 mal_cb (struct RPSPeer *rps_peer)
952 uint32_t num_mal_peers;
954 if (GNUNET_YES == in_shutdown)
959 #ifdef ENABLE_MALICIOUS
960 GNUNET_assert ( (1 >= portion) &&
962 num_mal_peers = round (portion * num_peers);
964 if (rps_peer->index >= num_mal_peers)
965 { /* It's useless to ask a malicious peer about a random sample -
967 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
968 seed_peers, rps_peer);
969 schedule_missing_requests (rps_peer);
971 #endif /* ENABLE_MALICIOUS */
975 /***********************************
977 ***********************************/
979 single_req_cb (struct RPSPeer *rps_peer)
981 if (GNUNET_YES == in_shutdown)
986 schedule_missing_requests (rps_peer);
989 /***********************************
991 ***********************************/
993 delay_req_cb (struct RPSPeer *rps_peer)
995 if (GNUNET_YES == in_shutdown)
1000 schedule_missing_requests (rps_peer);
1003 /***********************************
1005 ***********************************/
1007 seed_cb (struct RPSPeer *rps_peer)
1009 if (GNUNET_YES == in_shutdown)
1014 GNUNET_SCHEDULER_add_delayed (
1015 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10),
1016 seed_peers, rps_peer);
1019 /***********************************
1021 ***********************************/
1023 seed_big_cb (struct RPSPeer *rps_peer)
1025 if (GNUNET_YES == in_shutdown)
1030 // TODO test seeding > GNUNET_MAX_MESSAGE_SIZE peers
1031 GNUNET_SCHEDULER_add_delayed (
1032 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1033 seed_peers_big, rps_peer);
1036 /***********************************
1038 ***********************************/
1040 single_peer_seed_cb (struct RPSPeer *rps_peer)
1045 /***********************************
1047 ***********************************/
1049 seed_req_cb (struct RPSPeer *rps_peer)
1051 if (GNUNET_YES == in_shutdown)
1056 GNUNET_SCHEDULER_add_delayed (
1057 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1058 seed_peers, rps_peer);
1059 schedule_missing_requests (rps_peer);
1062 //TODO start big mal
1064 /***********************************
1066 ***********************************/
1068 req_cancel_cb (struct RPSPeer *rps_peer)
1070 if (GNUNET_YES == in_shutdown)
1075 schedule_missing_requests (rps_peer);
1076 GNUNET_SCHEDULER_add_delayed (
1077 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
1078 (cur_test_run.request_interval + 1)),
1079 cancel_request_cb, rps_peer);
1082 /***********************************
1084 ***********************************/
1090 * @brief Starts churn
1092 * Has signature of #MainTest
1094 * This is not implemented too nicely as this is called for each peer, but we
1095 * only need to call it once. (Yes we check that we only schedule the task
1098 * @param rps_peer The peer it's called for
1101 churn_test_cb (struct RPSPeer *rps_peer)
1103 if (GNUNET_YES == in_shutdown)
1109 if (GNUNET_YES == cur_test_run.have_churn && NULL == churn_task)
1111 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1112 "Starting churn task\n");
1113 churn_task = GNUNET_SCHEDULER_add_delayed (
1114 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5),
1118 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1119 "Not starting churn task\n");
1122 schedule_missing_requests (rps_peer);
1125 /***********************************
1127 ***********************************/
1130 * Callback to be called when RPS service is started or stopped at peers
1133 * @param op the operation handle
1134 * @param emsg NULL on success; otherwise an error description
1137 churn_cb (void *cls,
1138 struct GNUNET_TESTBED_Operation *op,
1142 struct OpListEntry *entry = cls;
1144 if (GNUNET_YES == in_shutdown)
1149 GNUNET_TESTBED_operation_done (entry->op);
1152 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start/stop RPS at a peer\n");
1153 GNUNET_SCHEDULER_shutdown ();
1156 GNUNET_assert (0 != entry->delta);
1158 num_peers_online += entry->delta;
1160 if (0 > entry->delta)
1161 { /* Peer hopefully just went offline */
1162 if (GNUNET_YES != rps_peers[entry->index].online)
1164 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1165 "peer %s was expected to go offline but is still marked as online\n",
1166 GNUNET_i2s (rps_peers[entry->index].peer_id));
1171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1172 "peer %s probably went offline as expected\n",
1173 GNUNET_i2s (rps_peers[entry->index].peer_id));
1175 rps_peers[entry->index].online = GNUNET_NO;
1178 else if (0 < entry->delta)
1179 { /* Peer hopefully just went online */
1180 if (GNUNET_NO != rps_peers[entry->index].online)
1182 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1183 "peer %s was expected to go online but is still marked as offline\n",
1184 GNUNET_i2s (rps_peers[entry->index].peer_id));
1189 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1190 "peer %s probably went online as expected\n",
1191 GNUNET_i2s (rps_peers[entry->index].peer_id));
1192 if (NULL != cur_test_run.pre_test)
1194 cur_test_run.pre_test (&rps_peers[entry->index],
1195 rps_peers[entry->index].rps_handle);
1196 schedule_missing_requests (&rps_peers[entry->index]);
1199 rps_peers[entry->index].online = GNUNET_YES;
1202 GNUNET_CONTAINER_DLL_remove (oplist_head, oplist_tail, entry);
1203 GNUNET_free (entry);
1204 //if (num_peers_in_round[current_round] == peers_running)
1209 * @brief Set the rps-service up or down for a specific peer
1211 * TODO use enum instead of 1/-1 for delta
1213 * @param i index of action
1214 * @param j index of peer
1215 * @param delta down (-1) or up (1)
1216 * @param prob_go_on_off the probability of the action
1219 manage_service_wrapper (unsigned int i, unsigned int j, int delta,
1220 double prob_go_on_off)
1222 struct OpListEntry *entry;
1225 prob = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1227 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1228 "%u. selected peer (%u: %s) is %s.\n",
1231 GNUNET_i2s (rps_peers[j].peer_id),
1232 (0 > delta) ? "online" : "offline");
1233 if (prob < prob_go_on_off * UINT32_MAX)
1235 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1237 GNUNET_i2s (rps_peers[j].peer_id),
1238 (0 > delta) ? "offline" : "online");
1240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1241 "testbed_peers points to %p, peer 0 to %p\n",
1242 testbed_peers, testbed_peers[0]);
1245 cancel_pending_req_rep (&rps_peers[j]);
1246 entry = make_oplist_entry ();
1247 entry->delta = delta;
1249 entry->op = GNUNET_TESTBED_peer_manage_service (NULL,
1254 (0 > delta) ? 0 : 1);
1264 double portion_online;
1265 unsigned int *permut;
1266 double prob_go_offline;
1267 double portion_go_online;
1268 double portion_go_offline;
1270 if (GNUNET_YES == in_shutdown)
1274 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1275 "Churn function executing\n");
1277 /* Compute the probability for an online peer to go offline
1279 portion_online = num_peers_online * 1.0 / num_peers;
1280 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1281 "Portion online: %f\n",
1283 portion_go_online = ((1 - portion_online) * .5 * .66);
1284 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1285 "Portion that should go online: %f\n",
1287 portion_go_offline = (portion_online + portion_go_online) - .75;
1288 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1289 "Portion that probably goes offline: %f\n",
1290 portion_go_offline);
1291 prob_go_offline = portion_go_offline / (portion_online * .5);
1292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1293 "Probability of a selected online peer to go offline: %f\n",
1296 permut = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
1297 (unsigned int) num_peers);
1299 /* Go over 50% randomly chosen peers */
1300 for (i = 0; i < .5 * num_peers; i++)
1304 /* If online, shut down with certain probability */
1305 if (GNUNET_YES == rps_peers[j].online)
1307 manage_service_wrapper (i, j, -1, prob_go_offline);
1310 /* If offline, restart with certain probability */
1311 else if (GNUNET_NO == rps_peers[j].online)
1313 manage_service_wrapper (i, j, 1, 0.66);
1317 GNUNET_free (permut);
1319 churn_task = GNUNET_SCHEDULER_add_delayed (
1320 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1327 * Initialise given RPSPeer
1329 static void profiler_init_peer (struct RPSPeer *rps_peer)
1331 if (num_peers - 1 == rps_peer->index)
1332 rps_peer->num_ids_to_request = cur_test_run.num_requests;
1337 * Callback to call on receipt of a reply
1339 * @param cls closure
1340 * @param n number of peers
1341 * @param recv_peers the received peers
1344 profiler_reply_handle (void *cls,
1346 const struct GNUNET_PeerIdentity *recv_peers)
1348 struct RPSPeer *rps_peer;
1349 struct RPSPeer *rcv_rps_peer;
1353 struct PendingReply *pending_rep = (struct PendingReply *) cls;
1355 rps_peer = pending_rep->rps_peer;
1356 file_name = "/tmp/rps/received_ids";
1357 file_name_dh = "/tmp/rps/diehard_input";
1358 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1359 "[%s] got %" PRIu64 " peers:\n",
1360 GNUNET_i2s (rps_peer->peer_id),
1362 for (i = 0; i < n; i++)
1364 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1367 GNUNET_i2s (&recv_peers[i]));
1370 GNUNET_i2s_full (&recv_peers[i]));
1371 rcv_rps_peer = GNUNET_CONTAINER_multipeermap_get (peer_map, &recv_peers[i]);
1372 GNUNET_assert (NULL != rcv_rps_peer);
1373 tofile (file_name_dh,
1375 (uint32_t) rcv_rps_peer->index);
1377 default_reply_handle (cls, n, recv_peers);
1382 profiler_cb (struct RPSPeer *rps_peer)
1384 if (GNUNET_YES == in_shutdown)
1390 if (GNUNET_YES == cur_test_run.have_churn && NULL == churn_task)
1392 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1393 "Starting churn task\n");
1394 churn_task = GNUNET_SCHEDULER_add_delayed (
1395 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5),
1399 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1400 "Not starting churn task\n");
1403 /* Only request peer ids at one peer.
1404 * (It's the before-last because last one is target of the focussed attack.)
1406 if (eval_peer == rps_peer)
1407 schedule_missing_requests (rps_peer);
1411 * Function called from #profiler_eval with a filename.
1413 * @param cls closure
1414 * @param filename complete filename (absolute path)
1415 * @return #GNUNET_OK to continue to iterate,
1416 * #GNUNET_NO to stop iteration with no error,
1417 * #GNUNET_SYSERR to abort iteration with error!
1420 file_name_cb (void *cls, const char *filename)
1422 if (NULL != strstr (filename, "sampler_el"))
1424 struct RPS_SamplerElement *s_elem;
1425 struct GNUNET_CRYPTO_AuthKey auth_key;
1426 const char *key_char;
1429 key_char = filename + 20; /* Length of "/tmp/rps/sampler_el-" */
1430 tofile (filename, "--------------------------\n");
1432 auth_key = string_to_auth_key (key_char);
1433 s_elem = RPS_sampler_elem_create ();
1434 RPS_sampler_elem_set (s_elem, auth_key);
1436 for (i = 0; i < num_peers; i++)
1438 RPS_sampler_elem_next (s_elem, &rps_peer_ids[i]);
1440 RPS_sampler_elem_destroy (s_elem);
1446 * This is run after the test finished.
1448 * Compute all perfect samples.
1451 profiler_eval (void)
1453 /* Compute perfect sample for each sampler element */
1454 if (-1 == GNUNET_DISK_directory_scan ("/tmp/rps/", file_name_cb, NULL))
1456 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Scan of directory failed\n");
1463 /***********************************************************************
1464 * /Definition of tests
1465 ***********************************************************************/
1469 * Actual "main" function for the testcase.
1471 * @param cls closure
1472 * @param h the run handle
1473 * @param n_peers number of peers in 'peers'
1474 * @param peers handle to peers run in the testbed
1475 * @param links_succeeded the number of overlay link connection attempts that
1477 * @param links_failed the number of overlay link connection attempts that
1482 struct GNUNET_TESTBED_RunHandle *h,
1483 unsigned int n_peers,
1484 struct GNUNET_TESTBED_Peer **peers,
1485 unsigned int links_succeeded,
1486 unsigned int links_failed)
1489 struct OpListEntry *entry;
1490 uint32_t num_mal_peers;
1492 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "RUN was called\n");
1494 /* Check whether we timed out */
1495 if (n_peers != num_peers ||
1497 0 == links_succeeded)
1499 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Going down due to args (eg. timeout)\n");
1500 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tn_peers: %u\n", n_peers);
1501 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tnum_peers: %" PRIu32 "\n", num_peers);
1502 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tpeers: %p\n", peers);
1503 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tlinks_succeeded: %u\n", links_succeeded);
1504 GNUNET_SCHEDULER_shutdown ();
1509 /* Initialize peers */
1510 testbed_peers = peers;
1511 num_peers_online = 0;
1512 for (i = 0; i < num_peers; i++)
1514 entry = make_oplist_entry ();
1516 rps_peers[i].index = i;
1517 if (NULL != cur_test_run.init_peer)
1518 cur_test_run.init_peer (&rps_peers[i]);
1519 entry->op = GNUNET_TESTBED_peer_get_information (peers[i],
1520 GNUNET_TESTBED_PIT_IDENTITY,
1525 /* Bring peers up */
1526 num_mal_peers = round (portion * num_peers);
1527 GNUNET_assert (num_peers == n_peers);
1528 for (i = 0; i < n_peers; i++)
1530 rps_peers[i].index = i;
1531 if ( (rps_peers[i].num_recv_ids < rps_peers[i].num_ids_to_request) ||
1532 (i < num_mal_peers) )
1535 GNUNET_TESTBED_service_connect (&rps_peers[i],
1538 &rps_connect_complete_cb,
1540 &rps_connect_adapter,
1541 &rps_disconnect_adapter,
1546 if (NULL != churn_task)
1547 GNUNET_SCHEDULER_cancel (churn_task);
1548 GNUNET_SCHEDULER_add_delayed (timeout, &shutdown_op, NULL);
1553 * Entry point for the testcase, sets up the testbed.
1555 * @param argc unused
1556 * @param argv unused
1557 * @return 0 on success
1560 main (int argc, char *argv[])
1565 cur_test_run.name = "test-rps-default";
1566 cur_test_run.init_peer = default_init_peer;
1567 cur_test_run.pre_test = NULL;
1568 cur_test_run.reply_handle = default_reply_handle;
1569 cur_test_run.eval_cb = default_eval_cb;
1570 cur_test_run.have_churn = GNUNET_YES;
1572 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
1574 if (strstr (argv[0], "malicious") != NULL)
1576 cur_test_run.pre_test = mal_pre;
1577 cur_test_run.main_test = mal_cb;
1578 cur_test_run.init_peer = mal_init_peer;
1580 if (strstr (argv[0], "_1") != NULL)
1582 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 1\n");
1583 cur_test_run.name = "test-rps-malicious_1";
1586 else if (strstr (argv[0], "_2") != NULL)
1588 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 2\n");
1589 cur_test_run.name = "test-rps-malicious_2";
1592 else if (strstr (argv[0], "_3") != NULL)
1594 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 3\n");
1595 cur_test_run.name = "test-rps-malicious_3";
1600 else if (strstr (argv[0], "_single_req") != NULL)
1602 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Test single request\n");
1603 cur_test_run.name = "test-rps-single-req";
1604 cur_test_run.main_test = single_req_cb;
1605 cur_test_run.have_churn = GNUNET_NO;
1608 else if (strstr (argv[0], "_delayed_reqs") != NULL)
1610 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test delayed requests\n");
1611 cur_test_run.name = "test-rps-delayed-reqs";
1612 cur_test_run.main_test = delay_req_cb;
1613 cur_test_run.have_churn = GNUNET_NO;
1616 else if (strstr (argv[0], "_seed_big") != NULL)
1618 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding (num_peers > GNUNET_MAX_MESSAGE_SIZE)\n");
1620 cur_test_run.name = "test-rps-seed-big";
1621 cur_test_run.main_test = seed_big_cb;
1622 cur_test_run.eval_cb = no_eval;
1623 cur_test_run.have_churn = GNUNET_NO;
1624 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1627 else if (strstr (argv[0], "_single_peer_seed") != NULL)
1629 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding and requesting on a single peer\n");
1630 cur_test_run.name = "test-rps-single-peer-seed";
1631 cur_test_run.main_test = single_peer_seed_cb;
1632 cur_test_run.have_churn = GNUNET_NO;
1635 else if (strstr (argv[0], "_seed_request") != NULL)
1637 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding and requesting on multiple peers\n");
1638 cur_test_run.name = "test-rps-seed-request";
1639 cur_test_run.main_test = seed_req_cb;
1640 cur_test_run.have_churn = GNUNET_NO;
1643 else if (strstr (argv[0], "_seed") != NULL)
1645 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding\n");
1646 cur_test_run.name = "test-rps-seed";
1647 cur_test_run.main_test = seed_cb;
1648 cur_test_run.eval_cb = no_eval;
1649 cur_test_run.have_churn = GNUNET_NO;
1652 else if (strstr (argv[0], "_req_cancel") != NULL)
1654 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test cancelling a request\n");
1655 cur_test_run.name = "test-rps-req-cancel";
1657 cur_test_run.main_test = req_cancel_cb;
1658 cur_test_run.eval_cb = no_eval;
1659 cur_test_run.have_churn = GNUNET_NO;
1660 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1663 else if (strstr (argv[0], "_churn") != NULL)
1665 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test churn\n");
1666 cur_test_run.name = "test-rps-churn";
1668 cur_test_run.init_peer = default_init_peer;
1669 cur_test_run.main_test = churn_test_cb;
1670 cur_test_run.reply_handle = default_reply_handle;
1671 cur_test_run.eval_cb = default_eval_cb;
1672 cur_test_run.have_churn = GNUNET_YES;
1673 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1676 else if (strstr (argv[0], "profiler") != NULL)
1678 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "This is the profiler\n");
1679 cur_test_run.name = "test-rps-profiler";
1682 cur_test_run.init_peer = profiler_init_peer;
1683 cur_test_run.pre_test = mal_pre;
1684 cur_test_run.main_test = profiler_cb;
1685 cur_test_run.reply_handle = profiler_reply_handle;
1686 cur_test_run.eval_cb = profiler_eval;
1687 cur_test_run.request_interval = 2;
1688 cur_test_run.num_requests = 5;
1689 cur_test_run.have_churn = GNUNET_YES;
1690 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 90);
1692 /* 'Clean' directory */
1693 (void) GNUNET_DISK_directory_remove ("/tmp/rps/");
1694 GNUNET_DISK_directory_create ("/tmp/rps/");
1697 rps_peers = GNUNET_new_array (num_peers, struct RPSPeer);
1698 peer_map = GNUNET_CONTAINER_multipeermap_create (num_peers, GNUNET_NO);
1699 rps_peer_ids = GNUNET_new_array (num_peers, struct GNUNET_PeerIdentity);
1700 if ( (2 == mal_type) ||
1702 target_peer = &rps_peer_ids[num_peers - 2];
1703 if (profiler_eval == cur_test_run.eval_cb)
1704 eval_peer = &rps_peers[num_peers - 1]; /* FIXME: eval_peer could be a
1705 malicious peer if not careful
1706 with the malicious portion */
1709 ret_value = GNUNET_TESTBED_test_run (cur_test_run.name,
1714 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1715 "_test_run returned.\n");
1716 if (GNUNET_OK != ret_value)
1718 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1719 "Test did not run successfully!\n");
1722 ret_value = cur_test_run.eval_cb();
1723 GNUNET_free (rps_peers);
1724 GNUNET_free (rps_peer_ids);
1725 GNUNET_CONTAINER_multipeermap_destroy (peer_map);
1729 /* end of test_rps.c */