2 This file is part of GNUnet.
3 Copyright (C) 2009, 2012 GNUnet e.V.
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
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 (NULL == pinfo || NULL != emsg)
595 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Got Error: %s\n", emsg);
596 GNUNET_TESTBED_operation_done (entry->op);
600 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
603 GNUNET_i2s (pinfo->result.id));
605 rps_peer_ids[entry->index] = *(pinfo->result.id);
606 rps_peers[entry->index].peer_id = &rps_peer_ids[entry->index];
608 GNUNET_assert (GNUNET_OK ==
609 GNUNET_CONTAINER_multipeermap_put (peer_map,
610 &rps_peer_ids[entry->index],
611 &rps_peers[entry->index],
612 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
613 tofile ("/tmp/rps/peer_ids",
616 GNUNET_i2s_full (&rps_peer_ids[entry->index]));
618 GNUNET_CONTAINER_DLL_remove (oplist_head, oplist_tail, entry);
619 GNUNET_TESTBED_operation_done (entry->op);
625 * Callback to be called when RPS service connect operation is completed
627 * @param cls the callback closure from functions generating an operation
628 * @param op the operation that has been finished
629 * @param ca_result the RPS service handle returned from rps_connect_adapter
630 * @param emsg error message in case the operation has failed; will be NULL if
631 * operation has executed successfully.
634 rps_connect_complete_cb (void *cls,
635 struct GNUNET_TESTBED_Operation *op,
639 struct RPSPeer *rps_peer = cls;
640 struct GNUNET_RPS_Handle *rps = ca_result;
642 rps_peer->rps_handle = rps;
643 rps_peer->online = GNUNET_YES;
646 GNUNET_assert (op == rps_peer->op);
649 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
650 "Failed to connect to RPS service: %s\n",
653 GNUNET_SCHEDULER_shutdown ();
657 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started client successfully\n");
659 cur_test_run.main_test (rps_peer);
664 * Adapter function called to establish a connection to
668 * @param cfg configuration of the peer to connect to; will be available until
669 * GNUNET_TESTBED_operation_done() is called on the operation returned
670 * from GNUNET_TESTBED_service_connect()
671 * @return service handle to return in 'op_result', NULL on error
674 rps_connect_adapter (void *cls,
675 const struct GNUNET_CONFIGURATION_Handle *cfg)
677 struct GNUNET_RPS_Handle *h;
679 h = GNUNET_RPS_connect (cfg);
681 if (NULL != cur_test_run.pre_test)
682 cur_test_run.pre_test (cls, h);
689 * Adapter function called to destroy connection to
693 * @param op_result service handle returned from the connect adapter
696 rps_disconnect_adapter (void *cls,
699 struct RPSPeer *peer = cls;
700 struct GNUNET_RPS_Handle *h = op_result;
701 GNUNET_assert (NULL != peer);
702 GNUNET_RPS_disconnect (h);
703 peer->rps_handle = NULL;
707 /***********************************************************************
708 * Definition of tests
709 ***********************************************************************/
711 // TODO check whether tests can be stopped earlier
713 default_eval_cb (void)
725 * Initialise given RPSPeer
727 static void default_init_peer (struct RPSPeer *rps_peer)
729 rps_peer->num_ids_to_request = 1;
733 * Callback to call on receipt of a reply
736 * @param n number of peers
737 * @param recv_peers the received peers
740 default_reply_handle (void *cls,
742 const struct GNUNET_PeerIdentity *recv_peers)
744 struct RPSPeer *rps_peer;
745 struct PendingReply *pending_rep = (struct PendingReply *) cls;
748 rps_peer = pending_rep->rps_peer;
749 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_rep_head,
750 rps_peer->pending_rep_tail,
752 rps_peer->num_pending_reps--;
753 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
754 "[%s] got %" PRIu64 " peers:\n",
755 GNUNET_i2s (rps_peer->peer_id),
758 for (i = 0; i < n; i++)
760 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
763 GNUNET_i2s (&recv_peers[i]));
765 rps_peer->num_recv_ids++;
768 if (0 == evaluate ())
770 GNUNET_SCHEDULER_shutdown ();
775 * Request random peers.
778 request_peers (void *cls)
780 struct PendingRequest *pending_req = cls;
781 struct RPSPeer *rps_peer;
782 struct PendingReply *pending_rep;
784 if (GNUNET_YES == in_shutdown)
786 rps_peer = pending_req->rps_peer;
787 GNUNET_assert (1 <= rps_peer->num_pending_reqs);
788 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_req_head,
789 rps_peer->pending_req_tail,
791 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
792 "Requesting one peer\n");
793 pending_rep = GNUNET_new (struct PendingReply);
794 pending_rep->rps_peer = rps_peer;
795 pending_rep->req_handle = GNUNET_RPS_request_peers (rps_peer->rps_handle,
797 cur_test_run.reply_handle,
799 GNUNET_CONTAINER_DLL_insert_tail (rps_peer->pending_rep_head,
800 rps_peer->pending_rep_tail,
802 rps_peer->num_pending_reps++;
803 rps_peer->num_pending_reqs--;
807 cancel_pending_req (struct PendingRequest *pending_req)
809 struct RPSPeer *rps_peer;
811 rps_peer = pending_req->rps_peer;
812 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_req_head,
813 rps_peer->pending_req_tail,
815 rps_peer->num_pending_reqs--;
816 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
817 "Cancelling pending request\n");
818 GNUNET_SCHEDULER_cancel (pending_req->request_task);
819 GNUNET_free (pending_req);
823 cancel_request (struct PendingReply *pending_rep)
825 struct RPSPeer *rps_peer;
827 rps_peer = pending_rep->rps_peer;
828 GNUNET_CONTAINER_DLL_remove (rps_peer->pending_rep_head,
829 rps_peer->pending_rep_tail,
831 rps_peer->num_pending_reps--;
832 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
833 "Cancelling request\n");
834 GNUNET_RPS_request_cancel (pending_rep->req_handle);
835 GNUNET_free (pending_rep);
842 cancel_request_cb (void *cls)
844 struct RPSPeer *rps_peer = cls;
845 struct PendingReply *pending_rep;
847 if (GNUNET_YES == in_shutdown)
849 pending_rep = rps_peer->pending_rep_head;
850 GNUNET_assert (1 <= rps_peer->num_pending_reps);
851 cancel_request (pending_rep);
856 * Schedule requests for peer @a rps_peer that have neither been scheduled, nor
857 * issued, nor replied
860 schedule_missing_requests (struct RPSPeer *rps_peer)
863 struct PendingRequest *pending_req;
865 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
866 "Scheduling %u - %u missing requests\n",
867 rps_peer->num_ids_to_request,
868 rps_peer->num_pending_reqs + rps_peer->num_pending_reps);
869 GNUNET_assert (rps_peer->num_pending_reqs + rps_peer->num_pending_reps <=
870 rps_peer->num_ids_to_request);
871 for (i = rps_peer->num_pending_reqs + rps_peer->num_pending_reps;
872 i < rps_peer->num_ids_to_request; i++)
874 pending_req = GNUNET_new (struct PendingRequest);
875 pending_req->rps_peer = rps_peer;
876 pending_req->request_task = GNUNET_SCHEDULER_add_delayed (
877 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
878 cur_test_run.request_interval * i),
881 GNUNET_CONTAINER_DLL_insert_tail (rps_peer->pending_req_head,
882 rps_peer->pending_req_tail,
884 rps_peer->num_pending_reqs++;
889 cancel_pending_req_rep (struct RPSPeer *rps_peer)
891 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
892 "Cancelling all (pending) requests.\n");
893 while (NULL != rps_peer->pending_req_head)
894 cancel_pending_req (rps_peer->pending_req_head);
895 GNUNET_assert (0 == rps_peer->num_pending_reqs);
896 while (NULL != rps_peer->pending_rep_head)
897 cancel_request (rps_peer->pending_rep_head);
898 GNUNET_assert (0 == rps_peer->num_pending_reps);
901 /***********************************
903 ***********************************/
906 * Initialise only non-mal RPSPeers
908 static void mal_init_peer (struct RPSPeer *rps_peer)
910 if (rps_peer->index >= round (portion * num_peers))
911 rps_peer->num_ids_to_request = 1;
915 mal_pre (void *cls, struct GNUNET_RPS_Handle *h)
917 #ifdef ENABLE_MALICIOUS
918 uint32_t num_mal_peers;
919 struct RPSPeer *rps_peer = (struct RPSPeer *) cls;
921 GNUNET_assert ( (1 >= portion) &&
923 num_mal_peers = round (portion * num_peers);
925 if (rps_peer->index < num_mal_peers)
927 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
928 "%u. peer [%s] of %" PRIu32 " malicious peers turning malicious\n",
930 GNUNET_i2s (rps_peer->peer_id),
933 GNUNET_RPS_act_malicious (h, mal_type, num_mal_peers,
934 rps_peer_ids, target_peer);
936 #endif /* ENABLE_MALICIOUS */
940 mal_cb (struct RPSPeer *rps_peer)
942 uint32_t num_mal_peers;
944 #ifdef ENABLE_MALICIOUS
945 GNUNET_assert ( (1 >= portion) &&
947 num_mal_peers = round (portion * num_peers);
949 if (rps_peer->index >= num_mal_peers)
950 { /* It's useless to ask a malicious peer about a random sample -
952 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
953 seed_peers, rps_peer);
954 schedule_missing_requests (rps_peer);
956 #endif /* ENABLE_MALICIOUS */
960 /***********************************
962 ***********************************/
964 single_req_cb (struct RPSPeer *rps_peer)
966 schedule_missing_requests (rps_peer);
969 /***********************************
971 ***********************************/
973 delay_req_cb (struct RPSPeer *rps_peer)
975 schedule_missing_requests (rps_peer);
978 /***********************************
980 ***********************************/
982 seed_cb (struct RPSPeer *rps_peer)
984 GNUNET_SCHEDULER_add_delayed (
985 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10),
986 seed_peers, rps_peer);
989 /***********************************
991 ***********************************/
993 seed_big_cb (struct RPSPeer *rps_peer)
995 // TODO test seeding > GNUNET_MAX_MESSAGE_SIZE peers
996 GNUNET_SCHEDULER_add_delayed (
997 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
998 seed_peers_big, rps_peer);
1001 /***********************************
1003 ***********************************/
1005 single_peer_seed_cb (struct RPSPeer *rps_peer)
1010 /***********************************
1012 ***********************************/
1014 seed_req_cb (struct RPSPeer *rps_peer)
1016 GNUNET_SCHEDULER_add_delayed (
1017 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1018 seed_peers, rps_peer);
1019 schedule_missing_requests (rps_peer);
1022 //TODO start big mal
1024 /***********************************
1026 ***********************************/
1028 req_cancel_cb (struct RPSPeer *rps_peer)
1030 schedule_missing_requests (rps_peer);
1031 GNUNET_SCHEDULER_add_delayed (
1032 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
1033 (cur_test_run.request_interval + 1)),
1034 cancel_request_cb, rps_peer);
1037 /***********************************
1039 ***********************************/
1045 * @brief Starts churn
1047 * Has signature of #MainTest
1049 * This is not implemented too nicely as this is called for each peer, but we
1050 * only need to call it once. (Yes we check that we only schedule the task
1053 * @param rps_peer The peer it's called for
1056 churn_test_cb (struct RPSPeer *rps_peer)
1059 if (GNUNET_YES == cur_test_run.have_churn && NULL == churn_task)
1061 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1062 "Starting churn task\n");
1063 churn_task = GNUNET_SCHEDULER_add_delayed (
1064 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5),
1068 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1069 "Not starting churn task\n");
1072 schedule_missing_requests (rps_peer);
1075 /***********************************
1077 ***********************************/
1080 * Callback to be called when RPS service is started or stopped at peers
1083 * @param op the operation handle
1084 * @param emsg NULL on success; otherwise an error description
1087 churn_cb (void *cls,
1088 struct GNUNET_TESTBED_Operation *op,
1092 struct OpListEntry *entry = cls;
1094 GNUNET_TESTBED_operation_done (entry->op);
1097 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to start/stop RPS at a peer\n");
1098 GNUNET_SCHEDULER_shutdown ();
1101 GNUNET_assert (0 != entry->delta);
1103 num_peers_online += entry->delta;
1105 if (0 > entry->delta)
1106 { /* Peer hopefully just went offline */
1107 if (GNUNET_YES != rps_peers[entry->index].online)
1109 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1110 "peer %s was expected to go offline but is still marked as online\n",
1111 GNUNET_i2s (rps_peers[entry->index].peer_id));
1116 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1117 "peer %s probably went offline as expected\n",
1118 GNUNET_i2s (rps_peers[entry->index].peer_id));
1120 rps_peers[entry->index].online = GNUNET_NO;
1123 else if (0 < entry->delta)
1124 { /* Peer hopefully just went online */
1125 if (GNUNET_NO != rps_peers[entry->index].online)
1127 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1128 "peer %s was expected to go online but is still marked as offline\n",
1129 GNUNET_i2s (rps_peers[entry->index].peer_id));
1134 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1135 "peer %s probably went online as expected\n",
1136 GNUNET_i2s (rps_peers[entry->index].peer_id));
1137 if (NULL != cur_test_run.pre_test)
1139 cur_test_run.pre_test (&rps_peers[entry->index],
1140 rps_peers[entry->index].rps_handle);
1141 schedule_missing_requests (&rps_peers[entry->index]);
1144 rps_peers[entry->index].online = GNUNET_YES;
1147 GNUNET_CONTAINER_DLL_remove (oplist_head, oplist_tail, entry);
1148 GNUNET_free (entry);
1149 //if (num_peers_in_round[current_round] == peers_running)
1154 * @brief Set the rps-service up or down for a specific peer
1156 * TODO use enum instead of 1/-1 for delta
1158 * @param i index of action
1159 * @param j index of peer
1160 * @param delta down (-1) or up (1)
1161 * @param prob_go_on_off the probability of the action
1164 manage_service_wrapper (unsigned int i, unsigned int j, int delta,
1165 double prob_go_on_off)
1167 struct OpListEntry *entry;
1170 prob = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1172 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1173 "%u. selected peer (%u: %s) is %s.\n",
1176 GNUNET_i2s (rps_peers[j].peer_id),
1177 (0 > delta) ? "online" : "offline");
1178 if (prob < prob_go_on_off * UINT32_MAX)
1180 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1182 GNUNET_i2s (rps_peers[j].peer_id),
1183 (0 > delta) ? "offline" : "online");
1185 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1186 "testbed_peers points to %p, peer 0 to %p\n",
1187 testbed_peers, testbed_peers[0]);
1190 cancel_pending_req_rep (&rps_peers[j]);
1191 entry = make_oplist_entry ();
1192 entry->delta = delta;
1194 entry->op = GNUNET_TESTBED_peer_manage_service (NULL,
1199 (0 > delta) ? 0 : 1);
1209 double portion_online;
1210 unsigned int *permut;
1211 double prob_go_offline;
1212 double portion_go_online;
1213 double portion_go_offline;
1215 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1216 "Churn function executing\n");
1218 /* Compute the probability for an online peer to go offline
1220 portion_online = num_peers_online * 1.0 / num_peers;
1221 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1222 "Portion online: %f\n",
1224 portion_go_online = ((1 - portion_online) * .5 * .66);
1225 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1226 "Portion that should go online: %f\n",
1228 portion_go_offline = (portion_online + portion_go_online) - .75;
1229 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1230 "Portion that probably goes offline: %f\n",
1231 portion_go_offline);
1232 prob_go_offline = portion_go_offline / (portion_online * .5);
1233 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1234 "Probability of a selected online peer to go offline: %f\n",
1237 permut = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
1238 (unsigned int) num_peers);
1240 /* Go over 50% randomly chosen peers */
1241 for (i = 0; i < .5 * num_peers; i++)
1245 /* If online, shut down with certain probability */
1246 if (GNUNET_YES == rps_peers[j].online)
1248 manage_service_wrapper (i, j, -1, prob_go_offline);
1251 /* If offline, restart with certain probability */
1252 else if (GNUNET_NO == rps_peers[j].online)
1254 manage_service_wrapper (i, j, 1, 0.66);
1258 GNUNET_free (permut);
1260 churn_task = GNUNET_SCHEDULER_add_delayed (
1261 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2),
1268 * Initialise given RPSPeer
1270 static void profiler_init_peer (struct RPSPeer *rps_peer)
1272 if (num_peers - 1 == rps_peer->index)
1273 rps_peer->num_ids_to_request = cur_test_run.num_requests;
1278 * Callback to call on receipt of a reply
1280 * @param cls closure
1281 * @param n number of peers
1282 * @param recv_peers the received peers
1285 profiler_reply_handle (void *cls,
1287 const struct GNUNET_PeerIdentity *recv_peers)
1289 struct RPSPeer *rps_peer;
1290 struct RPSPeer *rcv_rps_peer;
1294 struct PendingReply *pending_rep = (struct PendingReply *) cls;
1296 rps_peer = pending_rep->rps_peer;
1297 file_name = "/tmp/rps/received_ids";
1298 file_name_dh = "/tmp/rps/diehard_input";
1299 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1300 "[%s] got %" PRIu64 " peers:\n",
1301 GNUNET_i2s (rps_peer->peer_id),
1303 for (i = 0; i < n; i++)
1305 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1308 GNUNET_i2s (&recv_peers[i]));
1311 GNUNET_i2s_full (&recv_peers[i]));
1312 rcv_rps_peer = GNUNET_CONTAINER_multipeermap_get (peer_map, &recv_peers[i]);
1313 GNUNET_assert (NULL != rcv_rps_peer);
1314 tofile (file_name_dh,
1316 (uint32_t) rcv_rps_peer->index);
1318 default_reply_handle (cls, n, recv_peers);
1323 profiler_cb (struct RPSPeer *rps_peer)
1326 if (GNUNET_YES == cur_test_run.have_churn && NULL == churn_task)
1328 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1329 "Starting churn task\n");
1330 churn_task = GNUNET_SCHEDULER_add_delayed (
1331 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5),
1335 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1336 "Not starting churn task\n");
1339 /* Only request peer ids at one peer.
1340 * (It's the before-last because last one is target of the focussed attack.)
1342 if (eval_peer == rps_peer)
1343 schedule_missing_requests (rps_peer);
1347 * Function called from #profiler_eval with a filename.
1349 * @param cls closure
1350 * @param filename complete filename (absolute path)
1351 * @return #GNUNET_OK to continue to iterate,
1352 * #GNUNET_NO to stop iteration with no error,
1353 * #GNUNET_SYSERR to abort iteration with error!
1356 file_name_cb (void *cls, const char *filename)
1358 if (NULL != strstr (filename, "sampler_el"))
1360 struct RPS_SamplerElement *s_elem;
1361 struct GNUNET_CRYPTO_AuthKey auth_key;
1362 const char *key_char;
1365 key_char = filename + 20; /* Length of "/tmp/rps/sampler_el-" */
1366 tofile (filename, "--------------------------\n");
1368 auth_key = string_to_auth_key (key_char);
1369 s_elem = RPS_sampler_elem_create ();
1370 RPS_sampler_elem_set (s_elem, auth_key);
1372 for (i = 0; i < num_peers; i++)
1374 RPS_sampler_elem_next (s_elem, &rps_peer_ids[i]);
1376 RPS_sampler_elem_destroy (s_elem);
1382 * This is run after the test finished.
1384 * Compute all perfect samples.
1387 profiler_eval (void)
1389 /* Compute perfect sample for each sampler element */
1390 if (-1 == GNUNET_DISK_directory_scan ("/tmp/rps/", file_name_cb, NULL))
1392 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Scan of directory failed\n");
1399 /***********************************************************************
1400 * /Definition of tests
1401 ***********************************************************************/
1405 * Actual "main" function for the testcase.
1407 * @param cls closure
1408 * @param h the run handle
1409 * @param n_peers number of peers in 'peers'
1410 * @param peers handle to peers run in the testbed
1411 * @param links_succeeded the number of overlay link connection attempts that
1413 * @param links_failed the number of overlay link connection attempts that
1418 struct GNUNET_TESTBED_RunHandle *h,
1419 unsigned int n_peers,
1420 struct GNUNET_TESTBED_Peer **peers,
1421 unsigned int links_succeeded,
1422 unsigned int links_failed)
1425 struct OpListEntry *entry;
1426 uint32_t num_mal_peers;
1428 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "RUN was called\n");
1430 /* Check whether we timed out */
1431 if (n_peers != num_peers ||
1433 0 == links_succeeded)
1435 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Going down due to args (eg. timeout)\n");
1436 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tn_peers: %u\n", n_peers);
1437 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tnum_peers: %" PRIu32 "\n", num_peers);
1438 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tpeers: %p\n", peers);
1439 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "\tlinks_succeeded: %u\n", links_succeeded);
1440 GNUNET_SCHEDULER_shutdown ();
1445 /* Initialize peers */
1446 testbed_peers = peers;
1447 num_peers_online = 0;
1448 for (i = 0; i < num_peers; i++)
1450 entry = make_oplist_entry ();
1452 rps_peers[i].index = i;
1453 if (NULL != cur_test_run.init_peer)
1454 cur_test_run.init_peer (&rps_peers[i]);
1455 entry->op = GNUNET_TESTBED_peer_get_information (peers[i],
1456 GNUNET_TESTBED_PIT_IDENTITY,
1461 /* Bring peers up */
1462 num_mal_peers = round (portion * num_peers);
1463 GNUNET_assert (num_peers == n_peers);
1464 for (i = 0; i < n_peers; i++)
1466 rps_peers[i].index = i;
1467 if ( (rps_peers[i].num_recv_ids < rps_peers[i].num_ids_to_request) ||
1468 (i < num_mal_peers) )
1471 GNUNET_TESTBED_service_connect (&rps_peers[i],
1474 &rps_connect_complete_cb,
1476 &rps_connect_adapter,
1477 &rps_disconnect_adapter,
1482 if (NULL != churn_task)
1483 GNUNET_SCHEDULER_cancel (churn_task);
1484 GNUNET_SCHEDULER_add_delayed (timeout, &shutdown_op, NULL);
1489 * Entry point for the testcase, sets up the testbed.
1491 * @param argc unused
1492 * @param argv unused
1493 * @return 0 on success
1496 main (int argc, char *argv[])
1501 cur_test_run.name = "test-rps-default";
1502 cur_test_run.init_peer = default_init_peer;
1503 cur_test_run.pre_test = NULL;
1504 cur_test_run.reply_handle = default_reply_handle;
1505 cur_test_run.eval_cb = default_eval_cb;
1506 cur_test_run.have_churn = GNUNET_YES;
1508 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
1510 if (strstr (argv[0], "malicious") != NULL)
1512 cur_test_run.pre_test = mal_pre;
1513 cur_test_run.main_test = mal_cb;
1514 cur_test_run.init_peer = mal_init_peer;
1516 if (strstr (argv[0], "_1") != NULL)
1518 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 1\n");
1519 cur_test_run.name = "test-rps-malicious_1";
1522 else if (strstr (argv[0], "_2") != NULL)
1524 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 2\n");
1525 cur_test_run.name = "test-rps-malicious_2";
1528 else if (strstr (argv[0], "_3") != NULL)
1530 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test malicious peer type 3\n");
1531 cur_test_run.name = "test-rps-malicious_3";
1536 else if (strstr (argv[0], "_single_req") != NULL)
1538 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Test single request\n");
1539 cur_test_run.name = "test-rps-single-req";
1540 cur_test_run.main_test = single_req_cb;
1541 cur_test_run.have_churn = GNUNET_NO;
1544 else if (strstr (argv[0], "_delayed_reqs") != NULL)
1546 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test delayed requests\n");
1547 cur_test_run.name = "test-rps-delayed-reqs";
1548 cur_test_run.main_test = delay_req_cb;
1549 cur_test_run.have_churn = GNUNET_NO;
1552 else if (strstr (argv[0], "_seed_big") != NULL)
1554 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding (num_peers > GNUNET_MAX_MESSAGE_SIZE)\n");
1556 cur_test_run.name = "test-rps-seed-big";
1557 cur_test_run.main_test = seed_big_cb;
1558 cur_test_run.eval_cb = no_eval;
1559 cur_test_run.have_churn = GNUNET_NO;
1560 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1563 else if (strstr (argv[0], "_single_peer_seed") != NULL)
1565 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding and requesting on a single peer\n");
1566 cur_test_run.name = "test-rps-single-peer-seed";
1567 cur_test_run.main_test = single_peer_seed_cb;
1568 cur_test_run.have_churn = GNUNET_NO;
1571 else if (strstr (argv[0], "_seed_request") != NULL)
1573 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding and requesting on multiple peers\n");
1574 cur_test_run.name = "test-rps-seed-request";
1575 cur_test_run.main_test = seed_req_cb;
1576 cur_test_run.have_churn = GNUNET_NO;
1579 else if (strstr (argv[0], "_seed") != NULL)
1581 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test seeding\n");
1582 cur_test_run.name = "test-rps-seed";
1583 cur_test_run.main_test = seed_cb;
1584 cur_test_run.eval_cb = no_eval;
1585 cur_test_run.have_churn = GNUNET_NO;
1588 else if (strstr (argv[0], "_req_cancel") != NULL)
1590 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test cancelling a request\n");
1591 cur_test_run.name = "test-rps-req-cancel";
1593 cur_test_run.main_test = req_cancel_cb;
1594 cur_test_run.eval_cb = no_eval;
1595 cur_test_run.have_churn = GNUNET_NO;
1596 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1599 else if (strstr (argv[0], "_churn") != NULL)
1601 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Test churn\n");
1602 cur_test_run.name = "test-rps-churn";
1604 cur_test_run.init_peer = default_init_peer;
1605 cur_test_run.main_test = churn_test_cb;
1606 cur_test_run.reply_handle = default_reply_handle;
1607 cur_test_run.eval_cb = default_eval_cb;
1608 cur_test_run.have_churn = GNUNET_YES;
1609 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
1612 else if (strstr (argv[0], "profiler") != NULL)
1614 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "This is the profiler\n");
1615 cur_test_run.name = "test-rps-profiler";
1618 cur_test_run.init_peer = profiler_init_peer;
1619 cur_test_run.pre_test = mal_pre;
1620 cur_test_run.main_test = profiler_cb;
1621 cur_test_run.reply_handle = profiler_reply_handle;
1622 cur_test_run.eval_cb = profiler_eval;
1623 cur_test_run.request_interval = 2;
1624 cur_test_run.num_requests = 5;
1625 cur_test_run.have_churn = GNUNET_YES;
1626 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 90);
1628 /* 'Clean' directory */
1629 (void) GNUNET_DISK_directory_remove ("/tmp/rps/");
1630 GNUNET_DISK_directory_create ("/tmp/rps/");
1633 rps_peers = GNUNET_new_array (num_peers, struct RPSPeer);
1634 peer_map = GNUNET_CONTAINER_multipeermap_create (num_peers, GNUNET_NO);
1635 rps_peer_ids = GNUNET_new_array (num_peers, struct GNUNET_PeerIdentity);
1636 if ( (2 == mal_type) ||
1638 target_peer = &rps_peer_ids[num_peers - 2];
1639 if (profiler_eval == cur_test_run.eval_cb)
1640 eval_peer = &rps_peers[num_peers - 1]; /* FIXME: eval_peer could be a
1641 malicious peer if not careful
1642 with the malicious portion */
1645 ret_value = GNUNET_TESTBED_test_run (cur_test_run.name,
1650 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1651 "_test_run returned.\n");
1652 if (GNUNET_OK != ret_value)
1654 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1655 "Test did not run successfully!\n");
1658 ret_value = cur_test_run.eval_cb();
1659 GNUNET_free (rps_peers);
1660 GNUNET_free (rps_peer_ids);
1661 GNUNET_CONTAINER_multipeermap_destroy (peer_map);
1665 /* end of test_rps.c */