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diff --git a/src/testing_old/testing.c b/src/testing_old/testing.c
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1/*
2 This file is part of GNUnet
3 (C) 2008, 2009 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/**
22 * @file testing/testing.c
23 * @brief convenience API for writing testcases for GNUnet
24 * Many testcases need to start and stop gnunetd,
25 * and this library is supposed to make that easier
26 * for TESTCASES. Normal programs should always
27 * use functions from gnunet_{util,arm}_lib.h. This API is
28 * ONLY for writing testcases!
29 * @author Christian Grothoff
30 *
31 */
32#include "platform.h"
33#include "gnunet_arm_service.h"
34#include "gnunet_core_service.h"
35#include "gnunet_constants.h"
36#include "gnunet_testing_lib.h"
37#include "gnunet_transport_service.h"
38#include "gnunet_hello_lib.h"
39
40/**
41 * Hack to deal with initial HELLO's being often devoid of addresses.
42 * This hack causes 'process_hello' to ignore HELLOs without addresses.
43 * The correct implementation would continue with 'process_hello' until
44 * the connection could be established...
45 */
46#define EMPTY_HACK GNUNET_YES
47
48
49/**
50 * After how long do we retry a service connection that was
51 * unavailable? Used in cases where an exponential back-off
52 * seems inappropriate.
53 */
54#define GNUNET_CONSTANTS_SERVICE_RETRY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 500)
55
56/**
57 * How long do we wait after a FORK+EXEC before testing for the
58 * resulting process to be up (port open, waitpid, etc.)?
59 */
60#define GNUNET_CONSTANTS_EXEC_WAIT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 200)
61
62/**
63 * How long do we wait after starting gnunet-service-arm
64 * for the core service to be alive?
65 */
66#define ARM_START_WAIT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 120)
67
68/**
69 * How many times are we willing to try to wait for "scp" or
70 * "gnunet-service-arm" to complete (waitpid) before giving up?
71 */
72#define MAX_EXEC_WAIT_RUNS 250
73
74static struct GNUNET_CORE_MessageHandler no_handlers[] = { {NULL, 0, 0} };
75
76#if EMPTY_HACK
77static int
78test_address (void *cls, const struct GNUNET_HELLO_Address *address,
79 struct GNUNET_TIME_Absolute expiration)
80{
81 int *empty = cls;
82
83 *empty = GNUNET_NO;
84 return GNUNET_OK;
85}
86#endif
87
88/**
89 * Receive the HELLO from one peer, give it to the other
90 * and ask them to connect.
91 *
92 * @param cls Closure (daemon whose hello is this).
93 * @param message HELLO message of peer
94 */
95static void
96process_hello (void *cls, const struct GNUNET_MessageHeader *message)
97{
98 struct GNUNET_TESTING_Daemon *daemon = cls;
99 int msize;
100
101#if EMPTY_HACK
102 int empty;
103
104 empty = GNUNET_YES;
105 GNUNET_assert (message != NULL);
106 GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *) message,
107 GNUNET_NO, &test_address, &empty);
108 if (GNUNET_YES == empty)
109 {
110 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
111 "Skipping empty HELLO address of peer %s\n",
112 GNUNET_i2s (&daemon->id));
113 return;
114 }
115#endif
116 GNUNET_assert (daemon->phase == SP_GET_HELLO ||
117 daemon->phase == SP_START_DONE);
118 daemon->cb = NULL; // FIXME: why??? (see fsm:SP_START_CORE, notify_daemon_started)
119 if (daemon->task != GNUNET_SCHEDULER_NO_TASK) /* Assertion here instead? */
120 GNUNET_SCHEDULER_cancel (daemon->task);
121
122 if (daemon->server != NULL)
123 {
124 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
125 "Received `%s' from transport service of `%4s', disconnecting core!\n",
126 "HELLO", GNUNET_i2s (&daemon->id));
127 GNUNET_CORE_disconnect (daemon->server);
128 daemon->server = NULL;
129 }
130
131 msize = ntohs (message->size);
132 if (msize < 1)
133 {
134 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
135 "HELLO message of peer %s is of size 0\n",
136 GNUNET_i2s (&daemon->id));
137 return;
138 }
139 if (daemon->ghh != NULL)
140 {
141 GNUNET_TRANSPORT_get_hello_cancel (daemon->ghh);
142 daemon->ghh = NULL;
143 }
144 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
145 "Received `%s' from transport service of `%4s'\n", "HELLO",
146 GNUNET_i2s (&daemon->id));
147 GNUNET_free_non_null (daemon->hello);
148 daemon->hello = GNUNET_malloc (msize);
149 memcpy (daemon->hello, message, msize);
150
151 if (daemon->th != NULL)
152 {
153 GNUNET_TRANSPORT_disconnect (daemon->th);
154 daemon->th = NULL;
155 }
156 daemon->phase = SP_START_DONE;
157}
158
159
160/**
161 * Notify of a peer being up and running. Scheduled as a task
162 * so that variables which may need to be set are set before
163 * the connect callback can set up new operations.
164 * FIXME: what variables?????? where from????
165 *
166 * @param cls the testing daemon
167 * @param tc task scheduler context
168 */
169static void
170notify_daemon_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
171{
172 struct GNUNET_TESTING_Daemon *d = cls;
173 GNUNET_TESTING_NotifyDaemonRunning cb;
174
175 cb = d->cb;
176 d->cb = NULL;
177 if (NULL != cb)
178 cb (d->cb_cls, &d->id, d->cfg, d, NULL);
179}
180
181
182/**
183 * Finite-state machine for starting GNUnet.
184 *
185 * @param cls our "struct GNUNET_TESTING_Daemon"
186 * @param tc unused
187 */
188static void
189start_fsm (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
190{
191 struct GNUNET_TESTING_Daemon *d = cls;
192 GNUNET_TESTING_NotifyDaemonRunning cb;
193 enum GNUNET_OS_ProcessStatusType type;
194 unsigned long code;
195 char *dst;
196 int bytes_read;
197
198 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peer %s FSM is in phase %u.\n",
199 GNUNET_i2s (&d->id), d->phase);
200 d->task = GNUNET_SCHEDULER_NO_TASK;
201 switch (d->phase)
202 {
203 case SP_COPYING:
204 /* confirm copying complete */
205 if (GNUNET_OK != GNUNET_OS_process_status (d->proc_arm_copying, &type, &code))
206 {
207 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0)
208 {
209 cb = d->cb;
210 d->cb = NULL;
211 if (NULL != cb)
212 cb (d->cb_cls, NULL, d->cfg, d,
213 _
214 ("`scp' does not seem to terminate (timeout copying config).\n"));
215 return;
216 }
217 /* wait some more */
218 d->task =
219 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
220 d);
221 return;
222 }
223 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
224 {
225 cb = d->cb;
226 d->cb = NULL;
227 if (NULL != cb)
228 cb (d->cb_cls, NULL, d->cfg, d, _("`scp' did not complete cleanly.\n"));
229 return;
230 }
231 GNUNET_OS_process_destroy (d->proc_arm_copying);
232 d->proc_arm_copying = NULL;
233 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
234 "Successfully copied configuration file.\n");
235 d->phase = SP_COPIED;
236 /* fall-through */
237 case SP_COPIED:
238 /* Start create hostkey process if we don't already know the peer identity! */
239 if (GNUNET_NO == d->have_hostkey)
240 {
241 GNUNET_assert (NULL == d->proc_arm_peerinfo);
242 d->pipe_stdout = GNUNET_DISK_pipe (GNUNET_NO, GNUNET_NO, GNUNET_NO, GNUNET_YES);
243 if (d->pipe_stdout == NULL)
244 {
245 cb = d->cb;
246 d->cb = NULL;
247 if (NULL != cb)
248 cb (d->cb_cls, NULL, d->cfg, d,
249 (NULL ==
250 d->hostname) ?
251 _("Failed to create pipe for `gnunet-peerinfo' process.\n") :
252 _("Failed to create pipe for `ssh' process.\n"));
253 return;
254 }
255 if (NULL == d->hostname)
256 {
257 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
258 "Starting local `%s', with command `%s %s %s %s'.\n",
259 "gnunet-peerinfo", "gnunet-peerinfo", "-c", d->cfgfile,
260 "-sq");
261 d->proc_arm_peerinfo =
262 GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, d->pipe_stdout, "gnunet-peerinfo",
263 "gnunet-peerinfo", "-c", d->cfgfile, "-sq",
264 NULL);
265 GNUNET_DISK_pipe_close_end (d->pipe_stdout, GNUNET_DISK_PIPE_END_WRITE);
266 }
267 else
268 {
269 if (d->username != NULL)
270 GNUNET_asprintf (&dst, "%s@%s", d->username, d->hostname);
271 else
272 dst = GNUNET_strdup (d->hostname);
273
274 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
275 "Starting remove `%s', with command `%s %s %s %s %s %s'.\n",
276 "gnunet-peerinfo", "ssh", dst, "gnunet-peerinfo", "-c",
277 d->cfgfile, "-sq");
278 if (d->ssh_port_str == NULL)
279 {
280 d->proc_arm_peerinfo = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, d->pipe_stdout, "ssh", "ssh",
281 "-q",
282 dst, "gnunet-peerinfo", "-c",
283 d->cfgfile, "-sq", NULL);
284 }
285 else
286 {
287 d->proc_arm_peerinfo =
288 GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, d->pipe_stdout, "ssh", "ssh", "-p",
289 d->ssh_port_str,
290 "-q",
291 dst, "gnunet-peerinfo", "-c", d->cfgfile,
292 "-sq", NULL);
293 }
294 GNUNET_DISK_pipe_close_end (d->pipe_stdout, GNUNET_DISK_PIPE_END_WRITE);
295 GNUNET_free (dst);
296 }
297 if (NULL == d->proc_arm_peerinfo)
298 {
299 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
300 _("Could not start `%s' process to create hostkey.\n"),
301 (NULL == d->hostname) ? "gnunet-peerinfo" : "ssh");
302 cb = d->cb;
303 d->cb = NULL;
304 if (NULL != cb)
305 cb (d->cb_cls, NULL, d->cfg, d,
306 (NULL ==
307 d->hostname) ? _("Failed to start `gnunet-peerinfo' process.\n")
308 : _("Failed to start `ssh' process.\n"));
309 GNUNET_DISK_pipe_close (d->pipe_stdout);
310 return;
311 }
312 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
313 "Started `%s', waiting for hostkey.\n", "gnunet-peerinfo");
314 d->phase = SP_HOSTKEY_CREATE;
315 d->task =
316 GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_absolute_get_remaining
317 (d->max_timeout),
318 GNUNET_DISK_pipe_handle
319 (d->pipe_stdout,
320 GNUNET_DISK_PIPE_END_READ),
321 &start_fsm, d);
322 }
323 else /* Already have a hostkey! */
324 {
325 if (d->hostkey_callback != NULL)
326 {
327 d->hostkey_callback (d->hostkey_cls, &d->id, d, NULL);
328 d->hostkey_callback = NULL;
329 d->phase = SP_HOSTKEY_CREATED;
330 }
331 else
332 d->phase = SP_TOPOLOGY_SETUP;
333
334 /* wait some more */
335 d->task = GNUNET_SCHEDULER_add_now (&start_fsm, d);
336 }
337 break;
338 case SP_HOSTKEY_CREATE:
339 bytes_read =
340 GNUNET_DISK_file_read (GNUNET_DISK_pipe_handle
341 (d->pipe_stdout, GNUNET_DISK_PIPE_END_READ),
342 &d->hostkeybuf[d->hostkeybufpos],
343 sizeof (d->hostkeybuf) - d->hostkeybufpos);
344 if (bytes_read > 0)
345 d->hostkeybufpos += bytes_read;
346
347 if ((d->hostkeybufpos < 104) && (bytes_read > 0))
348 {
349 /* keep reading */
350 d->task =
351 GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_absolute_get_remaining
352 (d->max_timeout),
353 GNUNET_DISK_pipe_handle
354 (d->pipe_stdout,
355 GNUNET_DISK_PIPE_END_READ),
356 &start_fsm, d);
357 return;
358 }
359 d->hostkeybuf[103] = '\0';
360
361 if ((bytes_read < 0) ||
362 (GNUNET_OK !=
363 GNUNET_CRYPTO_hash_from_string (d->hostkeybuf, &d->id.hashPubKey)))
364 {
365 /* error */
366 if (bytes_read < 0)
367 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
368 _("Error reading from gnunet-peerinfo: %s\n"),
369 STRERROR (errno));
370 else
371 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
372 _("Malformed output from gnunet-peerinfo!\n"));
373 cb = d->cb;
374 d->cb = NULL;
375 GNUNET_DISK_pipe_close (d->pipe_stdout);
376 d->pipe_stdout = NULL;
377 (void) GNUNET_OS_process_kill (d->proc_arm_peerinfo, SIGKILL);
378 GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (d->proc_arm_peerinfo));
379 GNUNET_OS_process_destroy (d->proc_arm_peerinfo);
380 d->proc_arm_peerinfo = NULL;
381 if (NULL != cb)
382 cb (d->cb_cls, NULL, d->cfg, d, _("Failed to get hostkey!\n"));
383 return;
384 }
385 d->shortname = GNUNET_strdup (GNUNET_i2s (&d->id));
386 GNUNET_DISK_pipe_close (d->pipe_stdout);
387 d->pipe_stdout = NULL;
388 (void) GNUNET_OS_process_kill (d->proc_arm_peerinfo, SIGKILL);
389 GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (d->proc_arm_peerinfo));
390 GNUNET_OS_process_destroy (d->proc_arm_peerinfo);
391 d->proc_arm_peerinfo = NULL;
392 d->have_hostkey = GNUNET_YES;
393 if (d->hostkey_callback != NULL)
394 {
395 d->hostkey_callback (d->hostkey_cls, &d->id, d, NULL);
396 d->hostkey_callback = NULL;
397 d->phase = SP_HOSTKEY_CREATED;
398 }
399 else
400 {
401 d->phase = SP_TOPOLOGY_SETUP;
402 }
403 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully got hostkey!\n");
404 /* Fall through */
405 case SP_HOSTKEY_CREATED:
406 /* wait for topology finished */
407 if ((GNUNET_YES == d->dead) ||
408 (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0))
409 {
410 cb = d->cb;
411 d->cb = NULL;
412 if (NULL != cb)
413 cb (d->cb_cls, NULL, d->cfg, d,
414 _("`Failed while waiting for topology setup!\n"));
415 return;
416 }
417
418 d->task =
419 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
420 d);
421 break;
422 case SP_TOPOLOGY_SETUP: /* Indicates topology setup has completed! */
423 /* start GNUnet on remote host */
424 if (NULL == d->hostname)
425 {
426 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
427 "Starting local `%s', with command `%s %s %s %s'.\n",
428 "gnunet-arm", "gnunet-arm", "-c", d->cfgfile,
429 "-s");
430 d->proc_arm_start =
431 GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "gnunet-arm", "gnunet-arm", "-c",
432 d->cfgfile,
433 "-s", "-q", "-T", "5 s", NULL);
434 }
435 else
436 {
437 if (d->username != NULL)
438 GNUNET_asprintf (&dst, "%s@%s", d->username, d->hostname);
439 else
440 dst = GNUNET_strdup (d->hostname);
441
442 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
443 "Starting remote `%s', with command `%s %s %s %s %s %s %s'.\n",
444 "gnunet-arm", "ssh", dst, "gnunet-arm", "-c", d->cfgfile,
445 "-s", "-q");
446 if (d->ssh_port_str == NULL)
447 {
448 d->proc_arm_start = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh",
449 "-q",
450 dst, "gnunet-arm",
451 "-c", d->cfgfile, "-s", "-q", "-T",
452 GNUNET_STRINGS_relative_time_to_string
453 (GNUNET_TIME_absolute_get_remaining
454 (d->max_timeout), GNUNET_NO), NULL);
455 }
456 else
457 {
458
459 d->proc_arm_start =
460 GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh", "-p",
461 d->ssh_port_str,
462 "-q",
463 dst, "gnunet-arm",
464 "-c", d->cfgfile, "-s", "-q", "-T",
465 GNUNET_STRINGS_relative_time_to_string
466 (GNUNET_TIME_absolute_get_remaining
467 (d->max_timeout), GNUNET_NO), NULL);
468 }
469 GNUNET_free (dst);
470 }
471 if (NULL == d->proc_arm_start)
472 {
473 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
474 _("Could not start `%s' process to start GNUnet.\n"),
475 (NULL == d->hostname) ? "gnunet-arm" : "ssh");
476 cb = d->cb;
477 d->cb = NULL;
478 if (NULL != cb)
479 cb (d->cb_cls, NULL, d->cfg, d,
480 (NULL ==
481 d->hostname) ? _("Failed to start `gnunet-arm' process.\n") :
482 _("Failed to start `ssh' process.\n"));
483 return;
484 }
485 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
486 "Started `%s', waiting for `%s' to be up.\n", "gnunet-arm",
487 "gnunet-service-core");
488 d->phase = SP_START_ARMING;
489 d->task =
490 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
491 d);
492 // FIXME: busy wait?
493 break;
494 case SP_START_ARMING:
495 if (GNUNET_OK != GNUNET_OS_process_status (d->proc_arm_start, &type, &code))
496 {
497 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0)
498 {
499 cb = d->cb;
500 d->cb = NULL;
501 if (NULL != cb)
502 cb (d->cb_cls, NULL, d->cfg, d,
503 (NULL ==
504 d->hostname) ? _("`gnunet-arm' does not seem to terminate.\n") :
505 _("`ssh' does not seem to terminate.\n"));
506 if (d->cfg != NULL)
507 {
508 GNUNET_CONFIGURATION_destroy (d->cfg);
509 d->cfg = NULL;
510 }
511 if (d->cfgfile != NULL)
512 {
513 GNUNET_free (d->cfgfile);
514 d->cfgfile = NULL;
515 }
516 GNUNET_free_non_null (d->hostname);
517 GNUNET_free_non_null (d->username);
518 GNUNET_OS_process_destroy (d->proc_arm_start);
519 d->proc_arm_start = NULL;
520 d->username = NULL;
521 d->hostname = NULL; // Quick hack to avoid crashing (testing need to be
522 d->cfg = NULL; // overhauled anyway, and the error managing is
523 // GNUNET_free (d); // FIXME (could this leak)
524 // pretty broken anyway.
525 return;
526 }
527 /* wait some more */
528 d->task =
529 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
530 d);
531 // FIXME: busy wait?
532 return;
533 }
534 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully started `%s'.\n",
535 "gnunet-arm");
536 GNUNET_OS_process_destroy (d->proc_arm_start);
537 d->proc_arm_start = NULL;
538 d->phase = SP_START_CORE;
539 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Calling CORE_connect\n");
540 /* Fall through */
541 case SP_START_CORE:
542 if (d->server != NULL)
543 GNUNET_CORE_disconnect (d->server);
544
545 d->th = GNUNET_TRANSPORT_connect (d->cfg, &d->id, d, NULL, NULL, NULL);
546 if (d->th == NULL)
547 {
548 if (GNUNET_YES == d->dead)
549 GNUNET_TESTING_daemon_stop (d,
550 GNUNET_TIME_absolute_get_remaining
551 (d->max_timeout), d->dead_cb,
552 d->dead_cb_cls, GNUNET_YES, GNUNET_NO);
553 else if (NULL != d->cb)
554 d->cb (d->cb_cls, &d->id, d->cfg, d,
555 _("Failed to connect to transport service!\n"));
556 return;
557 }
558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
559 "Connected to transport service `%s', getting HELLO\n",
560 GNUNET_i2s (&d->id));
561 d->ghh = GNUNET_TRANSPORT_get_hello (d->th, &process_hello, d);
562 /* FIXME: store task ID somewhere! */
563 GNUNET_SCHEDULER_add_now (&notify_daemon_started, d);
564 /*cb = d->cb;
565 * d->cb = NULL;
566 * if (NULL != cb)
567 * cb (d->cb_cls, &d->id, d->cfg, d, NULL); */
568 d->running = GNUNET_YES;
569 d->phase = SP_GET_HELLO;
570 break;
571 case SP_GET_HELLO:
572 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0)
573 {
574 if (d->server != NULL)
575 GNUNET_CORE_disconnect (d->server);
576 if (d->th != NULL)
577 GNUNET_TRANSPORT_disconnect (d->th);
578 cb = d->cb;
579 d->cb = NULL;
580 if (NULL != cb)
581 cb (d->cb_cls, NULL, d->cfg, d, _("Unable to get HELLO for peer!\n"));
582 GNUNET_CONFIGURATION_destroy (d->cfg);
583 GNUNET_free (d->cfgfile);
584 GNUNET_free_non_null (d->hostname);
585 GNUNET_free_non_null (d->username);
586 GNUNET_free (d);
587 return;
588 }
589 if (d->hello != NULL)
590 return;
591 GNUNET_assert (d->task == GNUNET_SCHEDULER_NO_TASK);
592 d->task =
593 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
594 (GNUNET_CONSTANTS_SERVICE_RETRY, 2),
595 &start_fsm, d);
596 break;
597 case SP_START_DONE:
598 GNUNET_break (0);
599 break;
600 case SP_SERVICE_START:
601 /* confirm gnunet-arm exited */
602 if (GNUNET_OK != GNUNET_OS_process_status (d->proc_arm_srv_start, &type, &code))
603 {
604 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0)
605 {
606 cb = d->cb;
607 d->cb = NULL;
608 if (NULL != cb)
609 cb (d->cb_cls, NULL, d->cfg, d,
610 (NULL ==
611 d->hostname) ? _("`gnunet-arm' does not seem to terminate.\n") :
612 _("`ssh' does not seem to terminate.\n"));
613 return;
614 }
615 /* wait some more */
616 d->task =
617 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
618 d);
619 return;
620 }
621#if EXTRA_CHECKS
622 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
623 {
624 cb = d->cb;
625 d->cb = NULL;
626 if (NULL != cb)
627 cb (d->cb_cls, NULL, d->cfg, d,
628 (NULL ==
629 d->hostname) ?
630 _
631 ("`gnunet-arm' terminated with non-zero exit status (or timed out)!\n")
632 : _("`ssh' does not seem to terminate.\n"));
633 return;
634 }
635#endif
636 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Service startup complete!\n");
637 cb = d->cb;
638 d->cb = NULL;
639 d->phase = SP_START_DONE;
640 if (NULL != cb)
641 cb (d->cb_cls, &d->id, d->cfg, d, NULL);
642 GNUNET_OS_process_destroy (d->proc_arm_srv_start);
643 d->proc_arm_srv_start = NULL;
644 break;
645 case SP_SERVICE_SHUTDOWN_START:
646 /* confirm copying complete */
647 if (GNUNET_OK != GNUNET_OS_process_status (d->proc_arm_srv_stop, &type, &code))
648 {
649 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0)
650 {
651 if (NULL != d->dead_cb)
652 d->dead_cb (d->dead_cb_cls,
653 _
654 ("either `gnunet-arm' or `ssh' does not seem to terminate.\n"));
655 return;
656 }
657 /* wait some more */
658 d->task =
659 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
660 d);
661 return;
662 }
663#if EXTRA_CHECKS
664 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
665 {
666 if (NULL != d->dead_cb)
667 d->dead_cb (d->dead_cb_cls,
668 _
669 ("shutdown (either `gnunet-arm' or `ssh') did not complete cleanly.\n"));
670 return;
671 }
672#endif
673 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Service shutdown complete.\n");
674 if (NULL != d->dead_cb)
675 d->dead_cb (d->dead_cb_cls, NULL);
676 break;
677 case SP_SHUTDOWN_START:
678 /* confirm copying complete !??? */
679 if (GNUNET_OK != GNUNET_OS_process_status (d->proc_arm_stop, &type, &code))
680 {
681 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0)
682 {
683 if (NULL != d->dead_cb)
684 d->dead_cb (d->dead_cb_cls,
685 _
686 ("either `gnunet-arm' or `ssh' does not seem to terminate.\n"));
687 if (d->th != NULL)
688 {
689 GNUNET_TRANSPORT_get_hello_cancel (d->ghh);
690 d->ghh = NULL;
691 GNUNET_TRANSPORT_disconnect (d->th);
692 d->th = NULL;
693 }
694 if (d->cfg != NULL)
695 {
696 GNUNET_CONFIGURATION_destroy (d->cfg);
697 d->cfg = NULL;
698 }
699 if (d->cfgfile != NULL)
700 {
701 GNUNET_free (d->cfgfile);
702 d->cfgfile = NULL;
703 }
704 GNUNET_free_non_null (d->hello);
705 GNUNET_free_non_null (d->hostname);
706 GNUNET_free_non_null (d->username);
707 GNUNET_free_non_null (d->shortname);
708 GNUNET_OS_process_destroy (d->proc_arm_stop);
709 d->proc_arm_stop = NULL;
710 GNUNET_free (d);
711 return;
712 }
713 /* wait some more */
714 d->task =
715 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
716 d);
717 return;
718 }
719 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
720 {
721 if (NULL != d->dead_cb)
722 d->dead_cb (d->dead_cb_cls,
723 _
724 ("shutdown (either `gnunet-arm' or `ssh') did not complete cleanly.\n"));
725 if (d->th != NULL)
726 {
727 GNUNET_TRANSPORT_get_hello_cancel (d->ghh);
728 d->ghh = NULL;
729 GNUNET_TRANSPORT_disconnect (d->th);
730 d->th = NULL;
731 }
732 if (d->server != NULL)
733 {
734 GNUNET_CORE_disconnect (d->server);
735 d->server = NULL;
736 }
737 GNUNET_CONFIGURATION_destroy (d->cfg);
738 d->cfg = NULL;
739 GNUNET_free (d->cfgfile);
740 GNUNET_free_non_null (d->hello);
741 GNUNET_free_non_null (d->hostname);
742 GNUNET_free_non_null (d->username);
743 GNUNET_free_non_null (d->shortname);
744 GNUNET_OS_process_destroy (d->proc_arm_stop);
745 d->proc_arm_stop = NULL;
746 GNUNET_free (d);
747 return;
748 }
749 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peer shutdown complete.\n");
750 if (d->server != NULL)
751 {
752 GNUNET_CORE_disconnect (d->server);
753 d->server = NULL;
754 }
755
756 if (d->th != NULL)
757 {
758 GNUNET_TRANSPORT_get_hello_cancel (d->ghh);
759 d->ghh = NULL;
760 GNUNET_TRANSPORT_disconnect (d->th);
761 d->th = NULL;
762 }
763
764 if (NULL != d->dead_cb)
765 d->dead_cb (d->dead_cb_cls, NULL);
766
767 /* state clean up and notifications */
768 if (d->churn == GNUNET_NO)
769 {
770 GNUNET_CONFIGURATION_destroy (d->cfg);
771 d->cfg = NULL;
772 GNUNET_free (d->cfgfile);
773 GNUNET_free_non_null (d->hostname);
774 GNUNET_free_non_null (d->username);
775 }
776
777 GNUNET_free_non_null (d->hello);
778 d->hello = NULL;
779 GNUNET_free_non_null (d->shortname);
780 GNUNET_OS_process_destroy (d->proc_arm_stop);
781 d->proc_arm_stop = NULL;
782 d->shortname = NULL;
783 if (d->churn == GNUNET_NO)
784 GNUNET_free (d);
785
786 break;
787 case SP_CONFIG_UPDATE:
788 /* confirm copying complete */
789 if (GNUNET_OK != GNUNET_OS_process_status (d->proc_arm_copying, &type, &code))
790 {
791 if (GNUNET_TIME_absolute_get_remaining (d->max_timeout).rel_value == 0) /* FIXME: config update should take timeout parameter! */
792 {
793 cb = d->cb;
794 d->cb = NULL;
795 if (NULL != cb)
796 cb (d->cb_cls, NULL, d->cfg, d,
797 _("`scp' does not seem to terminate.\n"));
798 return;
799 }
800 /* wait some more */
801 d->task =
802 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
803 d);
804 return;
805 }
806 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
807 {
808 if (NULL != d->update_cb)
809 d->update_cb (d->update_cb_cls, _("`scp' did not complete cleanly.\n"));
810 return;
811 }
812 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
813 "Successfully copied configuration file.\n");
814 if (NULL != d->update_cb)
815 d->update_cb (d->update_cb_cls, NULL);
816 d->phase = SP_START_DONE;
817 break;
818 }
819}
820
821/**
822 * Continues GNUnet daemon startup when user wanted to be notified
823 * once a hostkey was generated (for creating friends files, blacklists,
824 * etc.).
825 *
826 * @param daemon the daemon to finish starting
827 */
828void
829GNUNET_TESTING_daemon_continue_startup (struct GNUNET_TESTING_Daemon *daemon)
830{
831 GNUNET_assert (daemon->phase == SP_HOSTKEY_CREATED);
832 daemon->phase = SP_TOPOLOGY_SETUP;
833}
834
835/**
836 * Check whether the given daemon is running.
837 *
838 * @param daemon the daemon to check
839 *
840 * @return GNUNET_YES if the daemon is up, GNUNET_NO if the
841 * daemon is down, GNUNET_SYSERR on error.
842 */
843int
844GNUNET_TESTING_test_daemon_running (struct GNUNET_TESTING_Daemon *daemon)
845{
846 if (daemon == NULL)
847 return GNUNET_SYSERR;
848
849 if (daemon->running == GNUNET_YES)
850 return GNUNET_YES;
851 return GNUNET_NO;
852}
853
854
855/**
856 * Starts a GNUnet daemon service which has been previously stopped.
857 *
858 * @param d the daemon for which the service should be started
859 * @param service the name of the service to start
860 * @param timeout how long to wait for process for shutdown to complete
861 * @param cb function called once the service starts
862 * @param cb_cls closure for cb
863 */
864void
865GNUNET_TESTING_daemon_start_stopped_service (struct GNUNET_TESTING_Daemon *d,
866 char *service,
867 struct GNUNET_TIME_Relative
868 timeout,
869 GNUNET_TESTING_NotifyDaemonRunning
870 cb, void *cb_cls)
871{
872 char *arg;
873
874 d->cb = cb;
875 d->cb_cls = cb_cls;
876
877 GNUNET_assert (d->running == GNUNET_YES);
878
879 if (d->phase == SP_CONFIG_UPDATE)
880 {
881 GNUNET_SCHEDULER_cancel (d->task);
882 d->phase = SP_START_DONE;
883 }
884
885 if (d->churned_services == NULL)
886 {
887 d->cb (d->cb_cls, &d->id, d->cfg, d,
888 "No service has been churned off yet!!");
889 return;
890 }
891 d->phase = SP_SERVICE_START;
892 GNUNET_free (d->churned_services);
893 d->churned_services = NULL;
894 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
895 /* Check if this is a local or remote process */
896 if (NULL != d->hostname)
897 {
898 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
899 "Starting gnunet-arm with config `%s' on host `%s'.\n",
900 d->cfgfile, d->hostname);
901 if (d->username != NULL)
902 GNUNET_asprintf (&arg, "%s@%s", d->username, d->hostname);
903 else
904 arg = GNUNET_strdup (d->hostname);
905
906 d->proc_arm_srv_start = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh",
907 "-q",
908 arg, "gnunet-arm",
909 "-c", d->cfgfile, "-i", service, "-q",
910 "-T",
911 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO),
912 NULL);
913 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
914 "Starting gnunet-arm with command ssh %s gnunet-arm -c %s -i %s -q\n",
915 arg, "gnunet-arm", d->cfgfile, service);
916 GNUNET_free (arg);
917 }
918 else
919 {
920 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
921 "Starting gnunet-arm with config `%s' locally.\n", d->cfgfile);
922 d->proc_arm_srv_start = GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "gnunet-arm", "gnunet-arm",
923 "-c", d->cfgfile, "-i", service, "-q",
924 "-T", "5 s",
925 NULL);
926 }
927
928 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
929 d->task = GNUNET_SCHEDULER_add_now (&start_fsm, d);
930}
931
932/**
933 * Starts a GNUnet daemon's service.
934 *
935 * @param d the daemon for which the service should be started
936 * @param service the name of the service to start
937 * @param timeout how long to wait for process for startup
938 * @param cb function called once gnunet-arm returns
939 * @param cb_cls closure for cb
940 */
941void
942GNUNET_TESTING_daemon_start_service (struct GNUNET_TESTING_Daemon *d,
943 const char *service,
944 struct GNUNET_TIME_Relative timeout,
945 GNUNET_TESTING_NotifyDaemonRunning cb,
946 void *cb_cls)
947{
948 char *arg;
949
950 d->cb = cb;
951 d->cb_cls = cb_cls;
952
953 GNUNET_assert (service != NULL);
954 GNUNET_assert (d->running == GNUNET_YES);
955 GNUNET_assert (d->phase == SP_START_DONE);
956
957 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
958 _("Starting service %s for peer `%4s'\n"), service,
959 GNUNET_i2s (&d->id));
960 d->phase = SP_SERVICE_START;
961 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
962 /* Check if this is a local or remote process */
963 if (NULL != d->hostname)
964 {
965 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
966 "Starting gnunet-arm with config `%s' on host `%s'.\n",
967 d->cfgfile, d->hostname);
968 if (d->username != NULL)
969 GNUNET_asprintf (&arg, "%s@%s", d->username, d->hostname);
970 else
971 arg = GNUNET_strdup (d->hostname);
972
973 d->proc_arm_srv_start = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh",
974 "-q",
975 arg, "gnunet-arm",
976 "-c", d->cfgfile, "-i", service, "-q",
977 "-T",
978 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO),
979 NULL);
980 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
981 "Starting gnunet-arm with command ssh %s gnunet-arm -c %s -i %s -q -T %s\n",
982 arg, "gnunet-arm", d->cfgfile, service,
983 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO));
984 GNUNET_free (arg);
985 }
986 else
987 {
988 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
989 "Starting gnunet-arm with config `%s' locally.\n", d->cfgfile);
990 d->proc_arm_srv_start = GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "gnunet-arm", "gnunet-arm",
991 "-c", d->cfgfile, "-i", service, "-q",
992 "-T", "5 s", NULL);
993 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
994 "Starting gnunet-arm with command %s -c %s -i %s -q -T \"5 s\"\n",
995 "gnunet-arm", d->cfgfile, service);
996 }
997
998 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
999 d->task = GNUNET_SCHEDULER_add_now (&start_fsm, d);
1000}
1001
1002/**
1003 * Start a peer that has previously been stopped using the daemon_stop
1004 * call (and files weren't deleted and the allow restart flag)
1005 *
1006 * @param daemon the daemon to start (has been previously stopped)
1007 * @param timeout how long to wait for restart
1008 * @param cb the callback for notification when the peer is running
1009 * @param cb_cls closure for the callback
1010 */
1011void
1012GNUNET_TESTING_daemon_start_stopped (struct GNUNET_TESTING_Daemon *daemon,
1013 struct GNUNET_TIME_Relative timeout,
1014 GNUNET_TESTING_NotifyDaemonRunning cb,
1015 void *cb_cls)
1016{
1017 if (daemon->running == GNUNET_YES)
1018 {
1019 cb (cb_cls, &daemon->id, daemon->cfg, daemon,
1020 "Daemon already running, can't restart!");
1021 return;
1022 }
1023
1024 daemon->cb = cb;
1025 daemon->cb_cls = cb_cls;
1026 daemon->phase = SP_TOPOLOGY_SETUP;
1027 daemon->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
1028 /* FIXME: why add_continuation? */
1029 GNUNET_SCHEDULER_add_continuation (&start_fsm, daemon,
1030 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1031}
1032
1033/**
1034 * Starts a GNUnet daemon. GNUnet must be installed on the target
1035 * system and available in the PATH. The machine must furthermore be
1036 * reachable via "ssh" (unless the hostname is "NULL") without the
1037 * need to enter a password.
1038 *
1039 * @param cfg configuration to use
1040 * @param timeout how long to wait starting up peers
1041 * @param pretend GNUNET_YES to set up files but not start peer GNUNET_NO
1042 * to really start the peer (default)
1043 * @param hostname name of the machine where to run GNUnet
1044 * (use NULL for localhost).
1045 * @param ssh_username ssh username to use when connecting to hostname
1046 * @param sshport port to pass to ssh process when connecting to hostname
1047 * @param hostkey pointer to a hostkey to be written to disk (instead of being generated)
1048 * @param hostkey_callback function to call once the hostkey has been
1049 * generated for this peer, but it hasn't yet been started
1050 * (NULL to start immediately, otherwise waits on GNUNET_TESTING_daemon_continue_start)
1051 * @param hostkey_cls closure for hostkey callback
1052 * @param cb function to call once peer is up, or failed to start
1053 * @param cb_cls closure for cb
1054 * @return handle to the daemon (actual start will be completed asynchronously)
1055 */
1056struct GNUNET_TESTING_Daemon *
1057GNUNET_TESTING_daemon_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
1058 struct GNUNET_TIME_Relative timeout, int pretend,
1059 const char *hostname, const char *ssh_username,
1060 uint16_t sshport, const char *hostkey,
1061 GNUNET_TESTING_NotifyHostkeyCreated
1062 hostkey_callback, void *hostkey_cls,
1063 GNUNET_TESTING_NotifyDaemonRunning cb,
1064 void *cb_cls)
1065{
1066 struct GNUNET_TESTING_Daemon *ret;
1067 char *arg;
1068 char *username;
1069 char *servicehome;
1070 char *baseservicehome;
1071 char *slash;
1072 char *hostkeyfile;
1073 char *temp_file_name;
1074 struct GNUNET_DISK_FileHandle *fn;
1075 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded public_key;
1076 struct GNUNET_CRYPTO_RsaPrivateKey *private_key;
1077
1078 ret = GNUNET_malloc (sizeof (struct GNUNET_TESTING_Daemon));
1079 ret->hostname = (hostname == NULL) ? NULL : GNUNET_strdup (hostname);
1080 if (sshport != 0)
1081 {
1082 GNUNET_asprintf (&ret->ssh_port_str, "%d", sshport);
1083 }
1084 else
1085 ret->ssh_port_str = NULL;
1086
1087 /* Find service home and base service home directories, create it if it doesn't exist */
1088 GNUNET_assert (GNUNET_OK ==
1089 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
1090 "SERVICEHOME",
1091 &servicehome));
1092
1093 GNUNET_assert (GNUNET_OK == GNUNET_DISK_directory_create (servicehome));
1094 GNUNET_asprintf (&temp_file_name, "%s/gnunet-testing-config", servicehome);
1095 ret->cfgfile = GNUNET_DISK_mktemp (temp_file_name);
1096 GNUNET_free (temp_file_name);
1097 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1098 "Setting up peer with configuration file `%s'.\n", ret->cfgfile);
1099 if (NULL == ret->cfgfile)
1100 {
1101 GNUNET_free_non_null (ret->ssh_port_str);
1102 GNUNET_free_non_null (ret->hostname);
1103 GNUNET_free (ret);
1104 return NULL;
1105 }
1106 ret->hostkey_callback = hostkey_callback;
1107 ret->hostkey_cls = hostkey_cls;
1108 ret->cb = cb;
1109 ret->cb_cls = cb_cls;
1110 ret->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
1111 ret->cfg = GNUNET_CONFIGURATION_dup (cfg);
1112 GNUNET_CONFIGURATION_set_value_string (ret->cfg, "PATHS", "DEFAULTCONFIG",
1113 ret->cfgfile);
1114
1115 if (hostkey != NULL) /* Get the peer identity from the hostkey */
1116 {
1117 private_key = GNUNET_CRYPTO_rsa_decode_key (hostkey, HOSTKEYFILESIZE);
1118 GNUNET_assert (private_key != NULL);
1119 GNUNET_CRYPTO_rsa_key_get_public (private_key, &public_key);
1120 GNUNET_CRYPTO_hash (&public_key,
1121 sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
1122 &ret->id.hashPubKey);
1123 ret->shortname = GNUNET_strdup (GNUNET_i2s (&ret->id));
1124 ret->have_hostkey = GNUNET_YES;
1125 GNUNET_CRYPTO_rsa_key_free (private_key);
1126 }
1127
1128 /* Write hostkey to file, if we were given one */
1129 hostkeyfile = NULL;
1130 if (hostkey != NULL)
1131 {
1132 GNUNET_asprintf (&hostkeyfile, "%s/.hostkey", servicehome);
1133 fn = GNUNET_DISK_file_open (hostkeyfile,
1134 GNUNET_DISK_OPEN_READWRITE |
1135 GNUNET_DISK_OPEN_CREATE,
1136 GNUNET_DISK_PERM_USER_READ |
1137 GNUNET_DISK_PERM_USER_WRITE);
1138 GNUNET_assert (fn != NULL);
1139 GNUNET_assert (HOSTKEYFILESIZE ==
1140 GNUNET_DISK_file_write (fn, hostkey, HOSTKEYFILESIZE));
1141 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fn));
1142 }
1143
1144 /* write configuration to temporary file */
1145 if (GNUNET_OK != GNUNET_CONFIGURATION_write (ret->cfg, ret->cfgfile))
1146 {
1147 if (0 != UNLINK (ret->cfgfile))
1148 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
1149 ret->cfgfile);
1150 GNUNET_CONFIGURATION_destroy (ret->cfg);
1151 GNUNET_free_non_null (ret->hostname);
1152 GNUNET_free (ret->cfgfile);
1153 GNUNET_free (ret);
1154 return NULL;
1155 }
1156 if (ssh_username != NULL)
1157 username = GNUNET_strdup (ssh_username);
1158 if ((ssh_username == NULL) &&
1159 (GNUNET_OK !=
1160 GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING_OLD", "USERNAME",
1161 &username)))
1162 {
1163 if (NULL != getenv ("USER"))
1164 username = GNUNET_strdup (getenv ("USER"));
1165 else
1166 username = NULL;
1167 }
1168 ret->username = username;
1169
1170 if (GNUNET_NO == pretend) /* Copy files, enter finite state machine */
1171 {
1172 /* copy directory to remote host */
1173 if (NULL != hostname)
1174 {
1175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1176 "Copying configuration directory to host `%s'.\n", hostname);
1177 baseservicehome = GNUNET_strdup (servicehome);
1178 /* Remove trailing /'s */
1179 while (baseservicehome[strlen (baseservicehome) - 1] == '/')
1180 baseservicehome[strlen (baseservicehome) - 1] = '\0';
1181 /* Find next directory /, jump one ahead */
1182 slash = strrchr (baseservicehome, '/');
1183 if (slash != NULL)
1184 *(++slash) = '\0';
1185
1186 ret->phase = SP_COPYING;
1187 if (NULL != username)
1188 GNUNET_asprintf (&arg, "%s@%s:%s", username, hostname, baseservicehome);
1189 else
1190 GNUNET_asprintf (&arg, "%s:%s", hostname, baseservicehome);
1191 GNUNET_free (baseservicehome);
1192 if (ret->ssh_port_str == NULL)
1193 {
1194 ret->proc_arm_copying = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "scp", "scp", "-r",
1195 "-q",
1196 servicehome, arg, NULL);
1197 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1198 "copying directory with command scp -r %s %s\n",
1199 servicehome, arg);
1200 }
1201 else
1202 {
1203 ret->proc_arm_copying =
1204 GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "scp", "scp", "-r", "-P",
1205 ret->ssh_port_str,
1206 "-q",
1207 servicehome, arg, NULL);
1208 }
1209 GNUNET_free (arg);
1210 if (NULL == ret->proc_arm_copying)
1211 {
1212 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1213 _
1214 ("Could not start `%s' process to copy configuration directory.\n"),
1215 "scp");
1216 if (0 != UNLINK (ret->cfgfile))
1217 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
1218 ret->cfgfile);
1219 GNUNET_CONFIGURATION_destroy (ret->cfg);
1220 GNUNET_free_non_null (ret->hostname);
1221 GNUNET_free_non_null (ret->username);
1222 GNUNET_free (ret->cfgfile);
1223 GNUNET_free (ret);
1224 if ((hostkey != NULL) && (0 != UNLINK (hostkeyfile)))
1225 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
1226 hostkeyfile);
1227 GNUNET_free_non_null (hostkeyfile);
1228 GNUNET_assert (GNUNET_OK == GNUNET_DISK_directory_remove (servicehome));
1229 GNUNET_free (servicehome);
1230 return NULL;
1231 }
1232
1233 ret->task =
1234 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm,
1235 ret);
1236 GNUNET_free_non_null (hostkeyfile);
1237 GNUNET_free (servicehome);
1238 return ret;
1239 }
1240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1241 "No need to copy configuration file since we are running locally.\n");
1242 ret->phase = SP_COPIED;
1243 /* FIXME: why add_cont? */
1244 GNUNET_SCHEDULER_add_continuation (&start_fsm, ret,
1245 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1246 }
1247 GNUNET_free_non_null (hostkeyfile);
1248 GNUNET_free (servicehome);
1249 return ret;
1250}
1251
1252
1253/**
1254 * Restart (stop and start) a GNUnet daemon.
1255 *
1256 * @param d the daemon that should be restarted
1257 * @param cb function called once the daemon is (re)started
1258 * @param cb_cls closure for cb
1259 */
1260void
1261GNUNET_TESTING_daemon_restart (struct GNUNET_TESTING_Daemon *d,
1262 GNUNET_TESTING_NotifyDaemonRunning cb,
1263 void *cb_cls)
1264{
1265 char *arg;
1266 char *del_arg;
1267
1268 del_arg = NULL;
1269 if (NULL != d->cb)
1270 {
1271 d->dead = GNUNET_YES;
1272 return;
1273 }
1274
1275 d->cb = cb;
1276 d->cb_cls = cb_cls;
1277
1278 if (d->phase == SP_CONFIG_UPDATE)
1279 {
1280 GNUNET_SCHEDULER_cancel (d->task);
1281 d->phase = SP_START_DONE;
1282 }
1283 if (d->server != NULL)
1284 {
1285 GNUNET_CORE_disconnect (d->server);
1286 d->server = NULL;
1287 }
1288
1289 if (d->th != NULL)
1290 {
1291 GNUNET_TRANSPORT_get_hello_cancel (d->ghh);
1292 d->ghh = NULL;
1293 GNUNET_TRANSPORT_disconnect (d->th);
1294 d->th = NULL;
1295 }
1296 /* state clean up and notifications */
1297 GNUNET_free_non_null (d->hello);
1298
1299 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Terminating peer `%4s'\n"),
1300 GNUNET_i2s (&d->id));
1301 d->phase = SP_START_ARMING;
1302
1303 /* Check if this is a local or remote process */
1304 if (NULL != d->hostname)
1305 {
1306 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1307 "Stopping gnunet-arm with config `%s' on host `%s'.\n",
1308 d->cfgfile, d->hostname);
1309 if (d->username != NULL)
1310 GNUNET_asprintf (&arg, "%s@%s", d->username, d->hostname);
1311 else
1312 arg = GNUNET_strdup (d->hostname);
1313
1314 d->proc_arm_stop = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh",
1315 "-q",
1316 arg, "gnunet-arm",
1317 "-c", d->cfgfile, "-e", "-r", NULL);
1318 /* Use -r to restart arm and all services */
1319
1320 GNUNET_free (arg);
1321 }
1322 else
1323 {
1324 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1325 "Stopping gnunet-arm with config `%s' locally.\n", d->cfgfile);
1326 d->proc_arm_stop = GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "gnunet-arm", "gnunet-arm",
1327 "-c", d->cfgfile, "-e", "-r", NULL);
1328 }
1329
1330 GNUNET_free_non_null (del_arg);
1331 d->task =
1332 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm, d);
1333
1334}
1335
1336
1337/**
1338 * Stops a GNUnet daemon.
1339 *
1340 * @param d the daemon that should be stopped
1341 * @param service the name of the service to stop
1342 * @param timeout how long to wait for process for shutdown to complete
1343 * @param cb function called once the daemon was stopped
1344 * @param cb_cls closure for cb
1345 */
1346void
1347GNUNET_TESTING_daemon_stop_service (struct GNUNET_TESTING_Daemon *d,
1348 const char *service,
1349 struct GNUNET_TIME_Relative timeout,
1350 GNUNET_TESTING_NotifyCompletion cb,
1351 void *cb_cls)
1352{
1353 char *arg;
1354
1355 d->dead_cb = cb;
1356 d->dead_cb_cls = cb_cls;
1357
1358 GNUNET_assert (d->running == GNUNET_YES);
1359
1360 if (d->phase == SP_CONFIG_UPDATE)
1361 {
1362 GNUNET_SCHEDULER_cancel (d->task);
1363 d->phase = SP_START_DONE;
1364 }
1365
1366 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Terminating peer `%4s'\n"),
1367 GNUNET_i2s (&d->id));
1368 if (d->churned_services != NULL)
1369 {
1370 d->dead_cb (d->dead_cb_cls, "A service has already been turned off!!");
1371 return;
1372 }
1373 d->phase = SP_SERVICE_SHUTDOWN_START;
1374 d->churned_services = GNUNET_strdup (service);
1375 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
1376 /* Check if this is a local or remote process */
1377 if (NULL != d->hostname)
1378 {
1379 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1380 "Stopping gnunet-arm with config `%s' on host `%s'.\n",
1381 d->cfgfile, d->hostname);
1382 if (d->username != NULL)
1383 GNUNET_asprintf (&arg, "%s@%s", d->username, d->hostname);
1384 else
1385 arg = GNUNET_strdup (d->hostname);
1386
1387 d->proc_arm_srv_stop = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh",
1388 "-q",
1389 arg, "gnunet-arm",
1390 "-c", d->cfgfile, "-k", service, "-q",
1391 "-T",
1392 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO),
1393 NULL);
1394 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1395 "Stopping gnunet-arm with command ssh %s gnunet-arm -c %s -k %s -q\n",
1396 arg, "gnunet-arm", d->cfgfile, service);
1397 GNUNET_free (arg);
1398 }
1399 else
1400 {
1401 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1402 "Stopping gnunet-arm with config `%s' locally.\n", d->cfgfile);
1403 d->proc_arm_srv_stop = GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "gnunet-arm", "gnunet-arm",
1404 "-c", d->cfgfile, "-k", service, "-q",
1405 "-T",
1406 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO),
1407 NULL);
1408 }
1409
1410 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
1411 d->task = GNUNET_SCHEDULER_add_now (&start_fsm, d);
1412}
1413
1414
1415/**
1416 * Forcefully terminate a process and clean up the child.
1417 *
1418 * @param proc handle to process to kill
1419 */
1420static void
1421kill_and_close_process (struct GNUNET_OS_Process *proc)
1422{
1423 (void) GNUNET_OS_process_kill (proc, SIGKILL);
1424 GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (proc));
1425 GNUNET_OS_process_destroy (proc);
1426}
1427
1428
1429/**
1430 * Stops a GNUnet daemon.
1431 *
1432 * @param d the daemon that should be stopped
1433 * @param timeout how long to wait for process for shutdown to complete
1434 * @param cb function called once the daemon was stopped
1435 * @param cb_cls closure for cb
1436 * @param delete_files GNUNET_YES to remove files, GNUNET_NO
1437 * to leave them
1438 * @param allow_restart GNUNET_YES to restart peer later (using this API)
1439 * GNUNET_NO to kill off and clean up for good
1440 */
1441void
1442GNUNET_TESTING_daemon_stop (struct GNUNET_TESTING_Daemon *d,
1443 struct GNUNET_TIME_Relative timeout,
1444 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls,
1445 int delete_files, int allow_restart)
1446{
1447 char *arg;
1448 char *del_arg;
1449
1450 d->dead_cb = cb;
1451 d->dead_cb_cls = cb_cls;
1452
1453 if (NULL != d->cb)
1454 {
1455 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Setting d->dead on peer `%4s'\n"),
1456 GNUNET_i2s (&d->id));
1457 d->dead = GNUNET_YES;
1458 return;
1459 }
1460 if (NULL != d->proc_arm_start)
1461 {
1462 kill_and_close_process (d->proc_arm_start);
1463 d->proc_arm_start = NULL;
1464 }
1465 if (NULL != d->proc_arm_srv_start)
1466 {
1467 kill_and_close_process (d->proc_arm_srv_start);
1468 d->proc_arm_srv_start = NULL;
1469 }
1470 if (NULL != d->proc_arm_srv_stop)
1471 {
1472 kill_and_close_process (d->proc_arm_srv_stop);
1473 d->proc_arm_srv_stop = NULL;
1474 }
1475 if (NULL != d->proc_arm_copying)
1476 {
1477 kill_and_close_process (d->proc_arm_copying);
1478 d->proc_arm_copying = NULL;
1479 }
1480 if (NULL != d->proc_arm_peerinfo)
1481 {
1482 kill_and_close_process (d->proc_arm_peerinfo);
1483 d->proc_arm_peerinfo = NULL;
1484 }
1485 if ((d->running == GNUNET_NO) && (d->churn == GNUNET_YES))
1486 {
1487 /* Peer has already been stopped in churn context!
1488 * Free what was left from churning! */
1489 GNUNET_assert (d->cfg != NULL);
1490 GNUNET_CONFIGURATION_destroy (d->cfg);
1491 if (delete_files == GNUNET_YES)
1492 {
1493 if (0 != UNLINK (d->cfgfile))
1494 {
1495 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "unlink");
1496 }
1497 }
1498 GNUNET_free (d->cfgfile);
1499 GNUNET_free_non_null (d->hostname);
1500 GNUNET_free_non_null (d->username);
1501 if (NULL != d->dead_cb)
1502 d->dead_cb (d->dead_cb_cls, NULL);
1503 /* FIXME: this should be an assert and the test below
1504 should not be required, but testing is broken... */
1505 GNUNET_break (NULL == d->proc_arm_stop);
1506 if (NULL == d->proc_arm_stop)
1507 GNUNET_free (d);
1508 return;
1509 }
1510
1511 del_arg = NULL;
1512 if (delete_files == GNUNET_YES)
1513 {
1514 GNUNET_asprintf (&del_arg, "-d");
1515 }
1516
1517 if (d->phase == SP_CONFIG_UPDATE)
1518 {
1519 GNUNET_SCHEDULER_cancel (d->task);
1520 d->phase = SP_START_DONE;
1521 }
1522 /** Move this call to scheduled shutdown as fix for CORE_connect calling daemon_stop?
1523 if (d->server != NULL)
1524 {
1525 GNUNET_CORE_disconnect (d->server);
1526 d->server = NULL;
1527 }
1528 */
1529 /* shutdown ARM process (will terminate others) */
1530 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Terminating peer `%4s'\n" ,
1531 GNUNET_i2s (&d->id));
1532 d->phase = SP_SHUTDOWN_START;
1533 d->running = GNUNET_NO;
1534 if (allow_restart == GNUNET_YES)
1535 d->churn = GNUNET_YES;
1536 if (d->th != NULL)
1537 {
1538 GNUNET_TRANSPORT_get_hello_cancel (d->ghh);
1539 d->ghh = NULL;
1540 GNUNET_TRANSPORT_disconnect (d->th);
1541 d->th = NULL;
1542 }
1543 /* Check if this is a local or remote process */
1544
1545
1546 if (NULL != d->hostname)
1547 {
1548 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1549 "Stopping gnunet-arm with config `%s' on host `%s'.\n",
1550 d->cfgfile, d->hostname);
1551 if (d->username != NULL)
1552 GNUNET_asprintf (&arg, "%s@%s", d->username, d->hostname);
1553 else
1554 arg = GNUNET_strdup (d->hostname);
1555
1556 d->proc_arm_stop = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "ssh", "ssh",
1557 "-q",
1558 arg, "gnunet-arm",
1559 "-c", d->cfgfile, "-e", "-q", "-T",
1560 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO),
1561 del_arg, NULL);
1562 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1563 "Stopping gnunet-arm with command ssh %s gnunet-arm -c %s -e -q %s\n",
1564 arg, "gnunet-arm", d->cfgfile, del_arg);
1565 /* Use -e to end arm, and -d to remove temp files */
1566 GNUNET_free (arg);
1567 }
1568 else
1569 {
1570 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1571 "Stopping gnunet-arm with config `%s' locally.\n", d->cfgfile);
1572 d->proc_arm_stop = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "gnunet-arm", "gnunet-arm",
1573 "-c", d->cfgfile, "-e", "-q", "-T",
1574 GNUNET_STRINGS_relative_time_to_string (timeout, GNUNET_NO),
1575 del_arg, NULL);
1576 GNUNET_assert (NULL != d->proc_arm_stop);
1577 }
1578
1579 GNUNET_free_non_null (del_arg);
1580 d->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
1581 if (GNUNET_SCHEDULER_NO_TASK != d->task)
1582 GNUNET_SCHEDULER_cancel(d->task);
1583 d->task = GNUNET_SCHEDULER_add_now (&start_fsm, d);
1584}
1585
1586
1587/**
1588 * Changes the configuration of a GNUnet daemon.
1589 *
1590 * @param d the daemon that should be modified
1591 * @param cfg the new configuration for the daemon
1592 * @param cb function called once the configuration was changed
1593 * @param cb_cls closure for cb
1594 */
1595void
1596GNUNET_TESTING_daemon_reconfigure (struct GNUNET_TESTING_Daemon *d,
1597 struct GNUNET_CONFIGURATION_Handle *cfg,
1598 GNUNET_TESTING_NotifyCompletion cb,
1599 void *cb_cls)
1600{
1601 char *arg;
1602
1603 if (d->phase != SP_START_DONE)
1604 {
1605 if (NULL != cb)
1606 cb (cb_cls,
1607 _
1608 ("Peer not yet running, can not change configuration at this point."));
1609 return;
1610 }
1611
1612 /* 1) write configuration to temporary file */
1613 if (GNUNET_OK != GNUNET_CONFIGURATION_write (cfg, d->cfgfile))
1614 {
1615 if (NULL != cb)
1616 cb (cb_cls, _("Failed to write new configuration to disk."));
1617 return;
1618 }
1619
1620 /* 2) copy file to remote host (if necessary) */
1621 if (NULL == d->hostname)
1622 {
1623 /* signal success */
1624 if (NULL != cb)
1625 cb (cb_cls, NULL);
1626 return;
1627 }
1628 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1629 "Copying updated configuration file to remote host `%s'.\n",
1630 d->hostname);
1631 d->phase = SP_CONFIG_UPDATE;
1632 if (NULL != d->username)
1633 GNUNET_asprintf (&arg, "%s@%s:%s", d->username, d->hostname, d->cfgfile);
1634 else
1635 GNUNET_asprintf (&arg, "%s:%s", d->hostname, d->cfgfile);
1636 d->proc_arm_copying = GNUNET_OS_start_process (GNUNET_NO, GNUNET_OS_INHERIT_STD_OUT_AND_ERR, NULL, NULL, "scp", "scp",
1637 "-q",
1638 d->cfgfile, arg, NULL);
1639 GNUNET_free (arg);
1640 if (NULL == d->proc_arm_copying)
1641 {
1642 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1643 _("Could not start `%s' process to copy configuration file.\n"),
1644 "scp");
1645 if (NULL != cb)
1646 cb (cb_cls, _("Failed to copy new configuration to remote machine."));
1647 d->phase = SP_START_DONE;
1648 return;
1649 }
1650 d->update_cb = cb;
1651 d->update_cb_cls = cb_cls;
1652 d->task =
1653 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT, &start_fsm, d);
1654}
1655
1656
1657/**
1658 * Data kept for each pair of peers that we try
1659 * to connect.
1660 */
1661struct GNUNET_TESTING_ConnectContext
1662{
1663 /**
1664 * Testing handle to the first daemon.
1665 */
1666 struct GNUNET_TESTING_Daemon *d1;
1667
1668 /**
1669 * Handle to core of first daemon (to check connect)
1670 */
1671 struct GNUNET_CORE_Handle *d1core;
1672
1673 /**
1674 * Have we actually connected to the core of the first daemon yet?
1675 */
1676 int d1core_ready;
1677
1678 /**
1679 * Testing handle to the second daemon.
1680 */
1681 struct GNUNET_TESTING_Daemon *d2;
1682
1683 /**
1684 * Transport handle to the first daemon (to offer the HELLO of the second daemon to).
1685 */
1686 struct GNUNET_TRANSPORT_Handle *d1th;
1687
1688 /**
1689 * Function to call once we are done (or have timed out).
1690 */
1691 GNUNET_TESTING_NotifyConnection cb;
1692
1693 /**
1694 * Closure for "nb".
1695 */
1696 void *cb_cls;
1697
1698 /**
1699 * The relative timeout from whence this connect attempt was
1700 * started. Allows for reconnect attempts.
1701 */
1702 struct GNUNET_TIME_Relative relative_timeout;
1703
1704 /**
1705 * Maximum number of connect attempts, will retry connection
1706 * this number of times on failures.
1707 */
1708 unsigned int connect_attempts;
1709
1710 /**
1711 * Hello timeout task
1712 */
1713 GNUNET_SCHEDULER_TaskIdentifier hello_send_task;
1714
1715 /**
1716 * Connect timeout task
1717 */
1718 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
1719
1720 /**
1721 * When should this operation be complete (or we must trigger
1722 * a timeout).
1723 */
1724 struct GNUNET_TIME_Relative timeout_hello;
1725
1726 /**
1727 * Was the connection attempt successful?
1728 */
1729 int connected;
1730
1731 /**
1732 * When connecting, do we need to send the HELLO?
1733 */
1734 int send_hello;
1735
1736 /**
1737 * The distance between the two connected peers
1738 */
1739 uint32_t distance;
1740};
1741
1742
1743/** Forward declaration **/
1744static void
1745reattempt_daemons_connect (void *cls,
1746 const struct GNUNET_SCHEDULER_TaskContext *tc);
1747
1748
1749/**
1750 * Notify callback about success or failure of the attempt
1751 * to connect the two peers
1752 *
1753 * @param cls our "struct GNUNET_TESTING_ConnectContext" (freed)
1754 * @param tc reason tells us if we succeeded or failed
1755 */
1756static void
1757notify_connect_result (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1758{
1759 struct GNUNET_TESTING_ConnectContext *ctx = cls;
1760
1761 ctx->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1762 if (ctx->hello_send_task != GNUNET_SCHEDULER_NO_TASK)
1763 {
1764 GNUNET_SCHEDULER_cancel (ctx->hello_send_task);
1765 ctx->hello_send_task = GNUNET_SCHEDULER_NO_TASK;
1766 }
1767
1768 if (ctx->d1th != NULL)
1769 GNUNET_TRANSPORT_disconnect (ctx->d1th);
1770 ctx->d1th = NULL;
1771 if (ctx->d1core != NULL)
1772 GNUNET_CORE_disconnect (ctx->d1core);
1773 ctx->d1core = NULL;
1774
1775 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
1776 {
1777 GNUNET_free (ctx);
1778 return;
1779 }
1780
1781 if (ctx->connected == GNUNET_YES)
1782 {
1783 if (ctx->cb != NULL)
1784 {
1785 ctx->cb (ctx->cb_cls, &ctx->d1->id, &ctx->d2->id, ctx->distance,
1786 ctx->d1->cfg, ctx->d2->cfg, ctx->d1, ctx->d2, NULL);
1787 }
1788 }
1789 else if (ctx->connect_attempts > 0)
1790 {
1791 ctx->d1core_ready = GNUNET_NO;
1792 ctx->timeout_task =
1793 GNUNET_SCHEDULER_add_now (&reattempt_daemons_connect, ctx);
1794 return;
1795 }
1796 else
1797 {
1798 if (ctx->cb != NULL)
1799 {
1800 ctx->cb (ctx->cb_cls, &ctx->d1->id, &ctx->d2->id, 0, ctx->d1->cfg,
1801 ctx->d2->cfg, ctx->d1, ctx->d2, _("Peers failed to connect"));
1802 }
1803 }
1804 GNUNET_free (ctx);
1805}
1806
1807
1808/**
1809 * Success, connection is up. Signal client our success.
1810 *
1811 * @param cls our "struct GNUNET_TESTING_ConnectContext"
1812 * @param peer identity of the peer that has connected
1813 * @param atsi performance information
1814 * @param atsi_count number of records in 'atsi'
1815 *
1816 */
1817static void
1818connect_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
1819 const struct GNUNET_ATS_Information *atsi,
1820 unsigned int atsi_count)
1821{
1822 struct GNUNET_TESTING_ConnectContext *ctx = cls;
1823
1824 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected peer %s to peer %s\n",
1825 ctx->d1->shortname, GNUNET_i2s (peer));
1826 if (0 != memcmp (&ctx->d2->id, peer, sizeof (struct GNUNET_PeerIdentity)))
1827 return;
1828 ctx->connected = GNUNET_YES;
1829 ctx->distance = 0; /* FIXME: distance */
1830 if (ctx->hello_send_task != GNUNET_SCHEDULER_NO_TASK)
1831 {
1832 GNUNET_SCHEDULER_cancel (ctx->hello_send_task);
1833 ctx->hello_send_task = GNUNET_SCHEDULER_NO_TASK;
1834 }
1835 GNUNET_SCHEDULER_cancel (ctx->timeout_task);
1836 ctx->timeout_task = GNUNET_SCHEDULER_add_now (&notify_connect_result, ctx);
1837}
1838
1839
1840static void
1841send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1842{
1843 struct GNUNET_TESTING_ConnectContext *ctx = cls;
1844 struct GNUNET_MessageHeader *hello;
1845
1846 ctx->hello_send_task = GNUNET_SCHEDULER_NO_TASK;
1847 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
1848 return;
1849 if ((ctx->d1core_ready == GNUNET_YES) && (ctx->d2->hello != NULL) &&
1850 (NULL != GNUNET_HELLO_get_header (ctx->d2->hello)) &&
1851 (ctx->d1->phase == SP_START_DONE) && (ctx->d2->phase == SP_START_DONE))
1852 {
1853 hello = GNUNET_HELLO_get_header (ctx->d2->hello);
1854 GNUNET_assert (hello != NULL);
1855 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Offering hello of %s to %s\n",
1856 ctx->d2->shortname, ctx->d1->shortname);
1857 GNUNET_TRANSPORT_offer_hello (ctx->d1th, hello, NULL, NULL);
1858 GNUNET_assert (ctx->d1core != NULL);
1859 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1860 "Sending connect request to TRANSPORT of %s for peer %s\n",
1861 GNUNET_i2s (&ctx->d1->id),
1862 GNUNET_h2s (&ctx->d2->id.hashPubKey));
1863 GNUNET_TRANSPORT_try_connect (ctx->d1th, &ctx->d2->id, NULL, NULL); /*FIXME TRY_CONNECT change */
1864 ctx->timeout_hello =
1865 GNUNET_TIME_relative_add (ctx->timeout_hello,
1866 GNUNET_TIME_relative_multiply
1867 (GNUNET_TIME_UNIT_MILLISECONDS, 500));
1868 }
1869 ctx->hello_send_task =
1870 GNUNET_SCHEDULER_add_delayed (ctx->timeout_hello, &send_hello, ctx);
1871}
1872
1873/**
1874 * Notify of a successful connection to the core service.
1875 *
1876 * @param cls a ConnectContext
1877 * @param server handle to the core service
1878 * @param my_identity the peer identity of this peer
1879 */
1880void
1881core_init_notify (void *cls, struct GNUNET_CORE_Handle *server,
1882 const struct GNUNET_PeerIdentity *my_identity)
1883{
1884 struct GNUNET_TESTING_ConnectContext *connect_ctx = cls;
1885
1886 connect_ctx->d1core_ready = GNUNET_YES;
1887
1888 if (connect_ctx->send_hello == GNUNET_NO)
1889 {
1890 GNUNET_TRANSPORT_try_connect (connect_ctx->d1th, &connect_ctx->d2->id, NULL, NULL); /*FIXME TRY_CONNECT change */
1891 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1892 "Sending connect request to TRANSPORT of %s for peer %s\n",
1893 connect_ctx->d1->shortname, connect_ctx->d2->shortname);
1894 }
1895}
1896
1897
1898/**
1899 * Try to connect again some peers that failed in an earlier attempt. This will
1900 * be tried as many times as connection_attempts in the configuration file.
1901 *
1902 * @param cls Closure (connection context between the two peers).
1903 * @param tc TaskContext.
1904 */
1905static void
1906reattempt_daemons_connect (void *cls,
1907 const struct GNUNET_SCHEDULER_TaskContext *tc)
1908{
1909 struct GNUNET_TESTING_ConnectContext *ctx = cls;
1910
1911 ctx->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1912 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
1913 return;
1914 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1915 "re-attempting connect of peer %s to peer %s\n",
1916 ctx->d1->shortname, ctx->d2->shortname);
1917 ctx->connect_attempts--;
1918 GNUNET_assert (ctx->d1core == NULL);
1919 ctx->d1core_ready = GNUNET_NO;
1920 ctx->d1core =
1921 GNUNET_CORE_connect (ctx->d1->cfg, ctx, &core_init_notify,
1922 &connect_notify, NULL, NULL, GNUNET_NO, NULL,
1923 GNUNET_NO, no_handlers);
1924 if (ctx->d1core == NULL)
1925 {
1926 if (NULL != ctx->cb)
1927 ctx->cb (ctx->cb_cls, &ctx->d1->id, &ctx->d2->id, 0, ctx->d1->cfg,
1928 ctx->d2->cfg, ctx->d1, ctx->d2,
1929 _("Failed to connect to core service of first peer!\n"));
1930 GNUNET_free (ctx);
1931 return;
1932 }
1933
1934 /* Don't know reason for initial connect failure, update the HELLO for the second peer */
1935 if (NULL != ctx->d2->hello)
1936 {
1937 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "updating %s's HELLO\n",
1938 ctx->d2->shortname);
1939 GNUNET_free (ctx->d2->hello);
1940 ctx->d2->hello = NULL;
1941 if (NULL != ctx->d2->th)
1942 {
1943 GNUNET_TRANSPORT_get_hello_cancel (ctx->d2->ghh);
1944 ctx->d2->ghh = NULL;
1945 GNUNET_TRANSPORT_disconnect (ctx->d2->th);
1946 }
1947 ctx->d2->th =
1948 GNUNET_TRANSPORT_connect (ctx->d2->cfg, &ctx->d2->id, NULL, NULL, NULL,
1949 NULL);
1950 GNUNET_assert (ctx->d2->th != NULL);
1951 ctx->d2->ghh =
1952 GNUNET_TRANSPORT_get_hello (ctx->d2->th, &process_hello, ctx->d2);
1953 }
1954 else
1955 {
1956 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "didn't have %s's HELLO\n",
1957 ctx->d2->shortname);
1958 }
1959
1960 if ((NULL == ctx->d2->hello) && (ctx->d2->th == NULL))
1961 {
1962 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1963 "didn't have %s's HELLO, trying to get it now\n",
1964 ctx->d2->shortname);
1965 ctx->d2->th =
1966 GNUNET_TRANSPORT_connect (ctx->d2->cfg, &ctx->d2->id, NULL, NULL, NULL,
1967 NULL);
1968 if (NULL == ctx->d2->th)
1969 {
1970 GNUNET_CORE_disconnect (ctx->d1core);
1971 if (NULL != ctx->cb)
1972 ctx->cb (ctx->cb_cls, &ctx->d1->id, &ctx->d2->id, 0, ctx->d1->cfg,
1973 ctx->d2->cfg, ctx->d1, ctx->d2,
1974 _("Failed to connect to transport service!\n"));
1975 GNUNET_free (ctx);
1976 return;
1977 }
1978 ctx->d2->ghh =
1979 GNUNET_TRANSPORT_get_hello (ctx->d2->th, &process_hello, ctx->d2);
1980 }
1981 else
1982 {
1983 if (NULL == ctx->d2->hello)
1984 {
1985 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1986 "didn't have %s's HELLO but th wasn't NULL, not trying!!\n",
1987 ctx->d2->shortname);
1988 }
1989 }
1990
1991 if (ctx->send_hello == GNUNET_YES)
1992 {
1993 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending %s's HELLO to %s\n",
1994 ctx->d1->shortname, ctx->d2->shortname);
1995 ctx->d1th =
1996 GNUNET_TRANSPORT_connect (ctx->d1->cfg, &ctx->d1->id, ctx->d1, NULL,
1997 NULL, NULL);
1998 if (ctx->d1th == NULL)
1999 {
2000 GNUNET_CORE_disconnect (ctx->d1core);
2001 if (NULL != ctx->cb)
2002 ctx->cb (ctx->cb_cls, &ctx->d1->id, &ctx->d2->id, 0, ctx->d1->cfg,
2003 ctx->d2->cfg, ctx->d1, ctx->d2,
2004 _("Failed to connect to transport service!\n"));
2005 GNUNET_free (ctx);
2006 return;
2007 }
2008 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == ctx->hello_send_task);
2009 ctx->hello_send_task = GNUNET_SCHEDULER_add_now (&send_hello, ctx);
2010 }
2011 else
2012 {
2013 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Trying to reconnect %s to %s\n",
2014 ctx->d1->shortname, ctx->d2->shortname);
2015 GNUNET_TRANSPORT_try_connect (ctx->d1th, &ctx->d2->id, NULL, NULL); /*FIXME TRY_CONNECT change */
2016 }
2017 ctx->timeout_task =
2018 GNUNET_SCHEDULER_add_delayed (ctx->relative_timeout,
2019 &notify_connect_result, ctx);
2020}
2021
2022/**
2023 * Iterator for currently known peers, to ensure
2024 * that we don't try to send duplicate connect
2025 * requests to core.
2026 *
2027 * @param cls our "struct GNUNET_TESTING_ConnectContext"
2028 * @param peer identity of the peer that has connected,
2029 * NULL when iteration has finished
2030 * @param atsi performance information
2031 * @param atsi_count number of records in 'atsi'
2032 *
2033 */
2034static void
2035core_initial_iteration (void *cls, const struct GNUNET_PeerIdentity *peer,
2036 const struct GNUNET_ATS_Information *atsi,
2037 unsigned int atsi_count)
2038{
2039 struct GNUNET_TESTING_ConnectContext *ctx = cls;
2040
2041 if ((peer != NULL) &&
2042 (0 == memcmp (&ctx->d2->id, peer, sizeof (struct GNUNET_PeerIdentity))))
2043 {
2044 ctx->connected = GNUNET_YES;
2045 ctx->distance = 0; /* FIXME: distance */
2046 return;
2047 }
2048 if (peer != NULL)
2049 return; /* ignore other peers */
2050 /* peer == NULL: End of iteration over peers */
2051
2052 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == ctx->timeout_task);
2053 if (ctx->connected == GNUNET_YES)
2054 {
2055 ctx->timeout_task = GNUNET_SCHEDULER_add_now (&notify_connect_result, ctx);
2056 return;
2057 }
2058
2059 /* Peer not already connected, need to schedule connect request! */
2060 if (ctx->d1core == NULL)
2061 {
2062 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2063 "Peers are NOT connected, connecting to core!\n");
2064 ctx->d1core =
2065 GNUNET_CORE_connect (ctx->d1->cfg, ctx, &core_init_notify,
2066 &connect_notify, NULL, NULL, GNUNET_NO, NULL,
2067 GNUNET_NO, no_handlers);
2068 }
2069
2070 if (ctx->d1core == NULL)
2071 {
2072 ctx->timeout_task = GNUNET_SCHEDULER_add_now (&notify_connect_result, ctx);
2073 return;
2074 }
2075
2076 if ((NULL == ctx->d2->hello) && (ctx->d2->th == NULL)) /* Do not yet have the second peer's hello, set up a task to get it */
2077 {
2078 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2079 "Don't have d2's HELLO, trying to get it!\n");
2080 ctx->d2->th =
2081 GNUNET_TRANSPORT_connect (ctx->d2->cfg, &ctx->d2->id, NULL, NULL, NULL,
2082 NULL);
2083 if (ctx->d2->th == NULL)
2084 {
2085 GNUNET_CORE_disconnect (ctx->d1core);
2086 ctx->d1core = NULL;
2087 ctx->timeout_task =
2088 GNUNET_SCHEDULER_add_now (&notify_connect_result, ctx);
2089 return;
2090 }
2091 ctx->d2->ghh =
2092 GNUNET_TRANSPORT_get_hello (ctx->d2->th, &process_hello, ctx->d2);
2093 }
2094
2095 if (ctx->send_hello == GNUNET_YES)
2096 {
2097 ctx->d1th =
2098 GNUNET_TRANSPORT_connect (ctx->d1->cfg, &ctx->d1->id, ctx->d1, NULL,
2099 NULL, NULL);
2100 if (ctx->d1th == NULL)
2101 {
2102 GNUNET_CORE_disconnect (ctx->d1core);
2103 ctx->d1core = NULL;
2104 ctx->timeout_task =
2105 GNUNET_SCHEDULER_add_now (&notify_connect_result, ctx);
2106 return;
2107 }
2108 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == ctx->hello_send_task);
2109 ctx->hello_send_task = GNUNET_SCHEDULER_add_now (&send_hello, ctx);
2110 }
2111
2112 ctx->timeout_task =
2113 GNUNET_SCHEDULER_add_delayed (ctx->relative_timeout,
2114 &notify_connect_result, ctx);
2115
2116}
2117
2118
2119/**
2120 * Establish a connection between two GNUnet daemons. The daemons
2121 * must both be running and not be stopped until either the
2122 * 'cb' callback is called OR the connection request has been
2123 * explicitly cancelled.
2124 *
2125 * @param d1 handle for the first daemon
2126 * @param d2 handle for the second daemon
2127 * @param timeout how long is the connection attempt
2128 * allowed to take?
2129 * @param max_connect_attempts how many times should we try to reconnect
2130 * (within timeout)
2131 * @param send_hello GNUNET_YES to send the HELLO, GNUNET_NO to assume
2132 * the HELLO has already been exchanged
2133 * @param cb function to call at the end
2134 * @param cb_cls closure for cb
2135 * @return handle to cancel the request
2136 */
2137struct GNUNET_TESTING_ConnectContext *
2138GNUNET_TESTING_daemons_connect (struct GNUNET_TESTING_Daemon *d1,
2139 struct GNUNET_TESTING_Daemon *d2,
2140 struct GNUNET_TIME_Relative timeout,
2141 unsigned int max_connect_attempts,
2142 int send_hello,
2143 GNUNET_TESTING_NotifyConnection cb,
2144 void *cb_cls)
2145{
2146 struct GNUNET_TESTING_ConnectContext *ctx;
2147
2148 if ((d1->running == GNUNET_NO) || (d2->running == GNUNET_NO))
2149 {
2150 if (NULL != cb)
2151 cb (cb_cls, &d1->id, &d2->id, 0, d1->cfg, d2->cfg, d1, d2,
2152 _("Peers are not fully running yet, can not connect!\n"));
2153 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Peers are not up!\n");
2154 return NULL;
2155 }
2156
2157 ctx = GNUNET_malloc (sizeof (struct GNUNET_TESTING_ConnectContext));
2158 ctx->d1 = d1;
2159 ctx->d2 = d2;
2160 ctx->timeout_hello =
2161 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 500);
2162 ctx->relative_timeout =
2163 GNUNET_TIME_relative_divide (timeout, max_connect_attempts);
2164 ctx->cb = cb;
2165 ctx->cb_cls = cb_cls;
2166 ctx->connect_attempts = max_connect_attempts;
2167 ctx->connected = GNUNET_NO;
2168 ctx->send_hello = send_hello;
2169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Asked to connect peer %s to peer %s\n",
2170 d1->shortname, d2->shortname);
2171 /* Core is up! Iterate over all _known_ peers first to check if we are already connected to the peer! */
2172 GNUNET_assert (NULL !=
2173 GNUNET_CORE_is_peer_connected (ctx->d1->cfg, &ctx->d2->id,
2174 &core_initial_iteration, ctx));
2175 return ctx;
2176}
2177
2178
2179/**
2180 * Cancel an attempt to connect two daemons.
2181 *
2182 * @param cc connect context
2183 */
2184void
2185GNUNET_TESTING_daemons_connect_cancel (struct GNUNET_TESTING_ConnectContext *cc)
2186{
2187 if (GNUNET_SCHEDULER_NO_TASK != cc->timeout_task)
2188 {
2189 GNUNET_SCHEDULER_cancel (cc->timeout_task);
2190 cc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2191 }
2192 if (GNUNET_SCHEDULER_NO_TASK != cc->hello_send_task)
2193 {
2194 GNUNET_SCHEDULER_cancel (cc->hello_send_task);
2195 cc->hello_send_task = GNUNET_SCHEDULER_NO_TASK;
2196 }
2197 if (NULL != cc->d1core)
2198 {
2199 GNUNET_CORE_disconnect (cc->d1core);
2200 cc->d1core = NULL;
2201 }
2202 if (NULL != cc->d1th)
2203 {
2204 GNUNET_TRANSPORT_disconnect (cc->d1th);
2205 cc->d1th = NULL;
2206 }
2207 GNUNET_free (cc);
2208}
2209
2210
2211/* end of testing.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-19 21:46:13 +0000