authentication of ciphertexts (+ seed)
[oweals/gnunet.git] / src / core / test_core_api_reliability.c
1 /*
2      This file is part of GNUnet.
3      (C) 2009, 2010 Christian Grothoff (and other contributing authors)
4
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.
9
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.
14
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., 59 Temple Place - Suite 330,
18      Boston, MA 02111-1307, USA.
19 */
20 /**
21  * @file core/test_core_api_reliability.c
22  * @brief testcase for core_api.c focusing on reliable transmission (with TCP)
23  *
24  * FIXME:
25  * - make sure connect callback is invoked properly as well!
26  */
27 #include "platform.h"
28 #include "gnunet_common.h"
29 #include "gnunet_constants.h"
30 #include "gnunet_arm_service.h"
31 #include "gnunet_core_service.h"
32 #include "gnunet_getopt_lib.h"
33 #include "gnunet_os_lib.h"
34 #include "gnunet_program_lib.h"
35 #include "gnunet_scheduler_lib.h"
36 #include "gnunet_transport_service.h"
37
38 #define VERBOSE GNUNET_NO
39
40 #define START_ARM GNUNET_YES
41
42 /**
43  * Note that this value must not significantly exceed
44  * 'MAX_PENDING' in 'gnunet-service-transport.c', otherwise
45  * messages may be dropped even for a reliable transport.
46  */
47 #define TOTAL_MSGS (600 * 10)
48
49 /**
50  * How long until we give up on transmitting the message?
51  */
52 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 6000)
53
54 /**
55  * What delay do we request from the core service for transmission?
56  * Any value smaller than the CORK delay will disable CORKing, which
57  * is what we want here.
58  */
59 #define FAST_TIMEOUT GNUNET_TIME_relative_divide (GNUNET_CONSTANTS_MAX_CORK_DELAY, 2)
60
61 #define MTYPE 12345
62
63
64 static unsigned long long total_bytes;
65
66 static struct GNUNET_TIME_Absolute start_time;
67
68 struct PeerContext
69 {
70   struct GNUNET_CONFIGURATION_Handle *cfg;
71   struct GNUNET_CORE_Handle *ch;
72   struct GNUNET_PeerIdentity id;   
73   struct GNUNET_TRANSPORT_Handle *th;
74   struct GNUNET_MessageHeader *hello;
75   int connect_status;
76 #if START_ARM
77   pid_t arm_pid;
78 #endif
79 };
80
81 static struct PeerContext p1;
82
83 static struct PeerContext p2;
84
85 static struct GNUNET_SCHEDULER_Handle *sched;
86
87 static int ok;
88
89 #if VERBOSE
90 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
91 #else
92 #define OKPP do { ok++; } while (0)
93 #endif
94
95 struct TestMessage 
96 {
97   struct GNUNET_MessageHeader header;
98   uint32_t num;
99 };
100
101
102 static unsigned int
103 get_size (unsigned int iter)
104 {
105   unsigned int ret;
106   if (iter < 60000)
107     return iter + sizeof (struct TestMessage);
108   ret = (iter * iter * iter);
109   return sizeof (struct TestMessage) + (ret % 60000);
110 }
111
112
113 static void
114 terminate_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
115 {
116   unsigned long long delta;
117
118   GNUNET_CORE_disconnect (p1.ch);
119   p1.ch = NULL;
120   GNUNET_CORE_disconnect (p2.ch);
121   p2.ch = NULL;
122   GNUNET_TRANSPORT_disconnect (p1.th);
123   p1.th = NULL;
124   GNUNET_TRANSPORT_disconnect (p2.th);
125   p2.th = NULL;
126   delta = GNUNET_TIME_absolute_get_duration (start_time).value;
127   fprintf (stderr,
128            "\nThroughput was %llu kb/s\n",
129            total_bytes * 1000 / 1024 / delta);
130   ok = 0;
131 }
132
133
134 static void
135 terminate_task_error (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
136 {
137   GNUNET_break (0);
138   GNUNET_CORE_disconnect (p1.ch);
139   p1.ch = NULL;
140   GNUNET_CORE_disconnect (p2.ch);
141   p2.ch = NULL;
142   GNUNET_TRANSPORT_disconnect (p1.th);
143   p1.th = NULL;
144   GNUNET_TRANSPORT_disconnect (p2.th);
145   p2.th = NULL;
146   ok = 42;
147 }
148
149
150 static void
151 connect_notify (void *cls,
152                 const struct GNUNET_PeerIdentity *peer,
153                 struct GNUNET_TIME_Relative latency,
154                 uint32_t distance)
155 {
156   struct PeerContext *pc = cls;
157   GNUNET_assert (pc->connect_status == 0);
158   pc->connect_status = 1;
159   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
160               "Encrypted connection established to peer `%4s'\n",
161               GNUNET_i2s (peer));
162 }
163
164
165 static void
166 disconnect_notify (void *cls,
167                    const struct GNUNET_PeerIdentity *peer)
168 {
169   struct PeerContext *pc = cls;
170   pc->connect_status = 0;
171   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
172               "Encrypted connection to `%4s' cut\n", GNUNET_i2s (peer));
173 }
174
175
176 static int
177 inbound_notify (void *cls,
178                 const struct GNUNET_PeerIdentity *other,
179                 const struct GNUNET_MessageHeader *message,
180                 struct GNUNET_TIME_Relative latency,
181                 uint32_t distance)
182 {
183 #if VERBOSE
184   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
185               "Core provides inbound data from `%4s'.\n", GNUNET_i2s (other));
186 #endif
187   return GNUNET_OK;
188 }
189
190
191 static int
192 outbound_notify (void *cls,
193                  const struct GNUNET_PeerIdentity *other,
194                  const struct GNUNET_MessageHeader *message,
195                  struct GNUNET_TIME_Relative latency,
196                  uint32_t distance)
197 {
198 #if VERBOSE
199   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
200               "Core notifies about outbound data for `%4s'.\n",
201               GNUNET_i2s (other));
202 #endif
203   return GNUNET_OK;
204 }
205
206
207 static GNUNET_SCHEDULER_TaskIdentifier err_task;
208
209
210 static size_t
211 transmit_ready (void *cls, size_t size, void *buf);
212
213 static int tr_n;
214
215
216 static int
217 process_mtype (void *cls,
218                const struct GNUNET_PeerIdentity *peer,
219                const struct GNUNET_MessageHeader *message,
220                struct GNUNET_TIME_Relative latency,
221                uint32_t distance)
222 {
223   static int n;
224   unsigned int s;
225   const struct TestMessage *hdr;
226
227   hdr = (const struct TestMessage*) message;
228   s = get_size (n);
229   if (MTYPE != ntohs (message->type))
230     return GNUNET_SYSERR;
231   if (ntohs (message->size) != s)
232     {
233       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
234                   "Expected message %u of size %u, got %u bytes of message %u\n",
235                   n, s,
236                   ntohs (message->size),
237                   ntohl (hdr->num));
238       GNUNET_SCHEDULER_cancel (sched, err_task);
239       err_task = GNUNET_SCHEDULER_add_now (sched, &terminate_task_error, NULL);
240       return GNUNET_SYSERR;
241     }
242   if (ntohl (hdr->num) != n)
243     {
244       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
245                   "Expected message %u of size %u, got %u bytes of message %u\n",
246                   n, s,
247                   ntohs (message->size),
248                   ntohl (hdr->num));
249       GNUNET_SCHEDULER_cancel (sched, err_task);
250       err_task = GNUNET_SCHEDULER_add_now (sched, &terminate_task_error, NULL);
251       return GNUNET_SYSERR;
252     }
253 #if VERBOSE
254   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
255               "Got message %u of size %u\n",
256               ntohl (hdr->num),
257               ntohs (message->size));         
258 #endif
259   n++;
260   if (0 == (n % (TOTAL_MSGS/100)))
261     fprintf (stderr, ".");
262   if (n == TOTAL_MSGS)
263     {
264       GNUNET_SCHEDULER_cancel (sched, err_task);
265       GNUNET_SCHEDULER_add_now (sched, &terminate_task, NULL);
266     }
267   else
268     {
269       if (n == tr_n)
270         GNUNET_break (NULL != 
271                       GNUNET_CORE_notify_transmit_ready (p1.ch,
272                                                          0,
273                                                          FAST_TIMEOUT,
274                                                          &p2.id,
275                                                          get_size(tr_n),
276                                                          &transmit_ready, &p1));
277     }
278   return GNUNET_OK;
279 }
280
281
282 static struct GNUNET_CORE_MessageHandler handlers[] = {
283   {&process_mtype, MTYPE, 0},
284   {NULL, 0, 0}
285 };
286
287
288 static size_t
289 transmit_ready (void *cls, size_t size, void *buf)
290 {
291   char *cbuf = buf;
292   struct TestMessage hdr;
293   unsigned int s;
294   unsigned int ret;
295
296   GNUNET_assert (size <= GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE); 
297   if (buf == NULL)
298     {
299       if (p1.ch != NULL)
300         GNUNET_break (NULL != 
301                       GNUNET_CORE_notify_transmit_ready (p1.ch,
302                                                          0,
303                                                          FAST_TIMEOUT,
304                                                          &p2.id,
305                                                          get_size(tr_n),
306                                                          &transmit_ready, &p1));
307       return 0;
308     }
309   GNUNET_assert (tr_n < TOTAL_MSGS);
310   ret = 0;
311   s = get_size (tr_n);
312   GNUNET_assert (size >= s);
313   GNUNET_assert (buf != NULL);
314   cbuf = buf;
315   do
316     {
317 #if VERBOSE
318       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
319                   "Sending message %u of size %u at offset %u\n",
320                   tr_n,
321                   s,
322                   ret);
323 #endif
324       hdr.header.size = htons (s);
325       hdr.header.type = htons (MTYPE);
326       hdr.num = htonl (tr_n);
327       memcpy (&cbuf[ret], &hdr, sizeof (struct TestMessage));
328       ret += sizeof (struct TestMessage);
329       memset (&cbuf[ret], tr_n, s - sizeof (struct TestMessage));
330       ret += s - sizeof (struct TestMessage);
331       tr_n++;
332       s = get_size (tr_n);
333       if (0 == GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16))
334         break; /* sometimes pack buffer full, sometimes not */
335     }
336   while (size - ret >= s);
337   GNUNET_SCHEDULER_cancel (sched, err_task);
338   err_task = 
339     GNUNET_SCHEDULER_add_delayed (sched,
340                                   TIMEOUT,
341                                   &terminate_task_error, 
342                                   NULL);
343   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
344               "Returning total message block of size %u\n",
345               ret);
346   total_bytes += ret;
347   return ret;
348 }
349
350
351
352 static void
353 init_notify (void *cls,
354              struct GNUNET_CORE_Handle *server,
355              const struct GNUNET_PeerIdentity *my_identity,
356              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
357 {
358   struct PeerContext *p = cls;
359
360   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
361               "Connection to CORE service of `%4s' established\n",
362               GNUNET_i2s (my_identity));
363   GNUNET_assert (server != NULL);
364   p->id = *my_identity;
365   p->ch = server;
366   if (cls == &p1)
367     {
368       GNUNET_assert (ok == 2);
369       OKPP;
370       /* connect p2 */
371       GNUNET_CORE_connect (sched,
372                            p2.cfg,
373                            TIMEOUT,
374                            &p2,
375                            &init_notify,                         
376                            &connect_notify,
377                            &disconnect_notify,
378                            NULL,
379                            &inbound_notify,
380                            GNUNET_YES,
381                            &outbound_notify, GNUNET_YES, handlers);
382     }
383   else
384     {
385       GNUNET_assert (ok == 3);
386       OKPP;
387       GNUNET_assert (cls == &p2);
388       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
389                   "Asking core (1) for transmission to peer `%4s'\n",
390                   GNUNET_i2s (&p2.id));
391       err_task = 
392         GNUNET_SCHEDULER_add_delayed (sched,
393                                       TIMEOUT,
394                                       &terminate_task_error, 
395                                       NULL);
396       start_time = GNUNET_TIME_absolute_get ();
397       GNUNET_break (NULL != 
398                     GNUNET_CORE_notify_transmit_ready (p1.ch,
399                                                        0,
400                                                        TIMEOUT,
401                                                        &p2.id,
402                                                        get_size (0),
403                                                        &transmit_ready, &p1));
404     }
405 }
406
407
408 static void
409 process_hello (void *cls,
410                const struct GNUNET_MessageHeader *message)
411 {
412   struct PeerContext *p = cls;
413
414   GNUNET_TRANSPORT_get_hello_cancel (p->th, &process_hello, p);
415   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
416               "Received (my) `%s' from transport service\n",
417               "HELLO");
418   GNUNET_assert (message != NULL);
419   p->hello = GNUNET_malloc (ntohs (message->size));
420   memcpy (p->hello, message, ntohs (message->size));
421   if ((p == &p1) && (p2.th != NULL))
422     GNUNET_TRANSPORT_offer_hello (p2.th, message);
423   if ((p == &p2) && (p1.th != NULL))
424     GNUNET_TRANSPORT_offer_hello (p1.th, message);
425
426   if ((p == &p1) && (p2.hello != NULL))
427     GNUNET_TRANSPORT_offer_hello (p1.th, p2.hello);
428   if ((p == &p2) && (p1.hello != NULL))
429     GNUNET_TRANSPORT_offer_hello (p2.th, p1.hello);
430 }
431
432
433
434 static void
435 setup_peer (struct PeerContext *p, const char *cfgname)
436 {
437   p->cfg = GNUNET_CONFIGURATION_create ();
438 #if START_ARM
439   p->arm_pid = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
440                                         "gnunet-service-arm",
441 #if VERBOSE
442                                         "-L", "DEBUG",
443 #endif
444                                         "-c", cfgname, NULL);
445 #endif
446   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
447   p->th = GNUNET_TRANSPORT_connect (sched, p->cfg, NULL, p, NULL, NULL, NULL);
448   GNUNET_assert (p->th != NULL);
449   GNUNET_TRANSPORT_get_hello (p->th, &process_hello, p);
450 }
451
452
453 static void
454 run (void *cls,
455      struct GNUNET_SCHEDULER_Handle *s,
456      char *const *args,
457      const char *cfgfile,
458      const struct GNUNET_CONFIGURATION_Handle *cfg)
459 {
460   GNUNET_assert (ok == 1);
461   OKPP;
462   sched = s;
463   setup_peer (&p1, "test_core_api_peer1.conf");
464   setup_peer (&p2, "test_core_api_peer2.conf");
465   GNUNET_CORE_connect (sched,
466                        p1.cfg,
467                        TIMEOUT,
468                        &p1,
469                        &init_notify,
470                        &connect_notify,
471                        &disconnect_notify,
472                        NULL,
473                        &inbound_notify,
474                        GNUNET_YES, &outbound_notify, GNUNET_YES, handlers);
475 }
476
477
478 static void
479 stop_arm (struct PeerContext *p)
480 {
481 #if START_ARM
482   if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
483     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
484   if (GNUNET_OS_process_wait(p->arm_pid) != GNUNET_OK)
485     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
486   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
487               "ARM process %u stopped\n", p->arm_pid);
488 #endif
489   GNUNET_CONFIGURATION_destroy (p->cfg);
490 }
491
492 static int
493 check ()
494 {
495   char *const argv[] = { "test-core-api-reliability",
496     "-c",
497     "test_core_api_data.conf",
498 #if VERBOSE
499     "-L", "DEBUG",
500 #endif
501     NULL
502   };
503   struct GNUNET_GETOPT_CommandLineOption options[] = {
504     GNUNET_GETOPT_OPTION_END
505   };
506   ok = 1;
507   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
508                       argv, "test-core-api-reliability", "nohelp", options, &run, &ok);
509   stop_arm (&p1);
510   stop_arm (&p2);
511   return ok;
512 }
513
514 int
515 main (int argc, char *argv[])
516 {
517   int ret;
518
519   GNUNET_log_setup ("test-core-api",
520 #if VERBOSE
521                     "DEBUG",
522 #else
523                     "WARNING",
524 #endif
525                     NULL);
526   ret = check ();
527   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-1"); 
528   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-2");
529
530   return ret;
531 }
532
533 /* end of test_core_api_reliability.c */