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4a09d9ee MW |
1 | /* |
2 | * Copyright (C) 2007 Tobias Brunner | |
3 | * Copyright (C) 2007-2010 Martin Willi | |
4 | * Hochschule fuer Technik Rapperswil | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | * for more details. | |
15 | */ | |
16 | ||
17 | #include "task_manager_v1.h" | |
18 | ||
4a09d9ee | 19 | #include <daemon.h> |
c73c832c | 20 | #include <sa/tasks/main_mode.h> |
4a09d9ee MW |
21 | |
22 | typedef struct exchange_t exchange_t; | |
23 | ||
24 | /** | |
25 | * An exchange in the air, used do detect and handle retransmission | |
26 | */ | |
27 | struct exchange_t { | |
28 | ||
29 | /** | |
30 | * Message ID used for this transaction | |
31 | */ | |
32 | u_int32_t mid; | |
33 | ||
34 | /** | |
35 | * generated packet for retransmission | |
36 | */ | |
37 | packet_t *packet; | |
38 | }; | |
39 | ||
40 | typedef struct private_task_manager_t private_task_manager_t; | |
41 | ||
42 | /** | |
43 | * private data of the task manager | |
44 | */ | |
45 | struct private_task_manager_t { | |
46 | ||
47 | /** | |
48 | * public functions | |
49 | */ | |
50 | task_manager_v1_t public; | |
51 | ||
52 | /** | |
53 | * associated IKE_SA we are serving | |
54 | */ | |
55 | ike_sa_t *ike_sa; | |
56 | ||
73aaf76b MW |
57 | /** |
58 | * RNG to create message IDs | |
59 | */ | |
60 | rng_t *rng; | |
61 | ||
4a09d9ee MW |
62 | /** |
63 | * Exchange we are currently handling as responder | |
64 | */ | |
65 | struct { | |
66 | /** | |
67 | * Message ID of the exchange | |
68 | */ | |
69 | u_int32_t mid; | |
70 | ||
71 | /** | |
72 | * packet for retransmission | |
73 | */ | |
74 | packet_t *packet; | |
75 | ||
76 | } responding; | |
77 | ||
78 | /** | |
79 | * Exchange we are currently handling as initiator | |
80 | */ | |
81 | struct { | |
82 | /** | |
83 | * Message ID of the exchange | |
84 | */ | |
85 | u_int32_t mid; | |
86 | ||
87 | /** | |
88 | * how many times we have retransmitted so far | |
89 | */ | |
90 | u_int retransmitted; | |
91 | ||
92 | /** | |
93 | * packet for retransmission | |
94 | */ | |
95 | packet_t *packet; | |
96 | ||
97 | /** | |
98 | * type of the initated exchange | |
99 | */ | |
100 | exchange_type_t type; | |
101 | ||
102 | } initiating; | |
103 | ||
104 | /** | |
105 | * List of queued tasks not yet in action | |
106 | */ | |
107 | linked_list_t *queued_tasks; | |
108 | ||
109 | /** | |
110 | * List of active tasks, initiated by ourselve | |
111 | */ | |
112 | linked_list_t *active_tasks; | |
113 | ||
114 | /** | |
115 | * List of tasks initiated by peer | |
116 | */ | |
117 | linked_list_t *passive_tasks; | |
118 | ||
4a09d9ee MW |
119 | /** |
120 | * Number of times we retransmit messages before giving up | |
121 | */ | |
122 | u_int retransmit_tries; | |
123 | ||
124 | /** | |
125 | * Retransmission timeout | |
126 | */ | |
127 | double retransmit_timeout; | |
128 | ||
129 | /** | |
130 | * Base to calculate retransmission timeout | |
131 | */ | |
132 | double retransmit_base; | |
133 | }; | |
134 | ||
135 | /** | |
136 | * flush all tasks in the task manager | |
137 | */ | |
138 | static void flush(private_task_manager_t *this) | |
139 | { | |
140 | this->queued_tasks->destroy_offset(this->queued_tasks, | |
141 | offsetof(task_t, destroy)); | |
142 | this->queued_tasks = linked_list_create(); | |
143 | this->passive_tasks->destroy_offset(this->passive_tasks, | |
144 | offsetof(task_t, destroy)); | |
145 | this->passive_tasks = linked_list_create(); | |
146 | this->active_tasks->destroy_offset(this->active_tasks, | |
147 | offsetof(task_t, destroy)); | |
148 | this->active_tasks = linked_list_create(); | |
149 | } | |
150 | ||
151 | METHOD(task_manager_t, retransmit, status_t, | |
152 | private_task_manager_t *this, u_int32_t message_id) | |
153 | { | |
154 | return FAILED; | |
155 | } | |
156 | ||
26b55dc6 MW |
157 | /** |
158 | * move a task of a specific type from the queue to the active list | |
159 | */ | |
160 | static bool activate_task(private_task_manager_t *this, task_type_t type) | |
161 | { | |
162 | enumerator_t *enumerator; | |
163 | task_t *task; | |
164 | bool found = FALSE; | |
165 | ||
166 | enumerator = this->queued_tasks->create_enumerator(this->queued_tasks); | |
167 | while (enumerator->enumerate(enumerator, (void**)&task)) | |
168 | { | |
169 | if (task->get_type(task) == type) | |
170 | { | |
171 | DBG2(DBG_IKE, " activating %N task", task_type_names, type); | |
172 | this->queued_tasks->remove_at(this->queued_tasks, enumerator); | |
173 | this->active_tasks->insert_last(this->active_tasks, task); | |
174 | found = TRUE; | |
175 | break; | |
176 | } | |
177 | } | |
178 | enumerator->destroy(enumerator); | |
179 | return found; | |
180 | } | |
181 | ||
4a09d9ee MW |
182 | METHOD(task_manager_t, initiate, status_t, |
183 | private_task_manager_t *this) | |
184 | { | |
26b55dc6 MW |
185 | enumerator_t *enumerator; |
186 | task_t *task; | |
187 | message_t *message; | |
188 | host_t *me, *other; | |
189 | status_t status; | |
73aaf76b MW |
190 | exchange_type_t exchange = EXCHANGE_TYPE_UNDEFINED; |
191 | ||
192 | if (!this->rng) | |
193 | { | |
194 | DBG1(DBG_IKE, "no RNG supported"); | |
195 | return FAILED; | |
196 | } | |
26b55dc6 MW |
197 | |
198 | if (this->initiating.type != EXCHANGE_TYPE_UNDEFINED) | |
199 | { | |
200 | DBG2(DBG_IKE, "delaying task initiation, %N exchange in progress", | |
201 | exchange_type_names, this->initiating.type); | |
202 | /* do not initiate if we already have a message in the air */ | |
203 | return SUCCESS; | |
204 | } | |
205 | ||
206 | if (this->active_tasks->get_count(this->active_tasks) == 0) | |
207 | { | |
208 | DBG2(DBG_IKE, "activating new tasks"); | |
209 | switch (this->ike_sa->get_state(this->ike_sa)) | |
210 | { | |
211 | case IKE_CREATED: | |
212 | if (activate_task(this, MAIN_MODE)) | |
213 | { | |
214 | exchange = ID_PROT; | |
215 | } | |
216 | break; | |
217 | default: | |
218 | break; | |
219 | } | |
220 | } | |
221 | else | |
222 | { | |
223 | DBG2(DBG_IKE, "reinitiating already active tasks"); | |
224 | enumerator = this->active_tasks->create_enumerator(this->active_tasks); | |
225 | while (enumerator->enumerate(enumerator, (void**)&task)) | |
226 | { | |
227 | DBG2(DBG_IKE, " %N task", task_type_names, task->get_type(task)); | |
228 | switch (task->get_type(task)) | |
229 | { | |
230 | case MAIN_MODE: | |
231 | exchange = ID_PROT; | |
232 | break; | |
233 | default: | |
234 | continue; | |
235 | } | |
236 | break; | |
237 | } | |
238 | enumerator->destroy(enumerator); | |
239 | } | |
240 | ||
73aaf76b | 241 | if (exchange == EXCHANGE_TYPE_UNDEFINED) |
26b55dc6 MW |
242 | { |
243 | DBG2(DBG_IKE, "nothing to initiate"); | |
244 | /* nothing to do yet... */ | |
245 | return SUCCESS; | |
246 | } | |
247 | ||
248 | me = this->ike_sa->get_my_host(this->ike_sa); | |
249 | other = this->ike_sa->get_other_host(this->ike_sa); | |
250 | ||
251 | message = message_create(IKEV1_MAJOR_VERSION, IKEV1_MINOR_VERSION); | |
252 | if (exchange != ID_PROT) | |
253 | { | |
73aaf76b MW |
254 | this->rng->get_bytes(this->rng, sizeof(this->initiating.mid), |
255 | (void*)&this->initiating.mid); | |
256 | message->set_message_id(message, this->initiating.mid); | |
26b55dc6 MW |
257 | } |
258 | message->set_source(message, me->clone(me)); | |
259 | message->set_destination(message, other->clone(other)); | |
260 | message->set_exchange_type(message, exchange); | |
261 | this->initiating.type = exchange; | |
262 | this->initiating.retransmitted = 0; | |
263 | ||
264 | enumerator = this->active_tasks->create_enumerator(this->active_tasks); | |
265 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
266 | { | |
267 | switch (task->build(task, message)) | |
268 | { | |
269 | case SUCCESS: | |
270 | /* task completed, remove it */ | |
271 | this->active_tasks->remove_at(this->active_tasks, enumerator); | |
272 | task->destroy(task); | |
273 | break; | |
274 | case NEED_MORE: | |
275 | /* processed, but task needs another exchange */ | |
276 | break; | |
277 | case FAILED: | |
278 | default: | |
279 | if (this->ike_sa->get_state(this->ike_sa) != IKE_CONNECTING) | |
280 | { | |
281 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
282 | } | |
283 | /* FALL */ | |
284 | case DESTROY_ME: | |
285 | /* critical failure, destroy IKE_SA */ | |
286 | enumerator->destroy(enumerator); | |
287 | message->destroy(message); | |
288 | flush(this); | |
289 | return DESTROY_ME; | |
290 | } | |
291 | } | |
292 | enumerator->destroy(enumerator); | |
293 | ||
294 | /* update exchange type if a task changed it */ | |
295 | this->initiating.type = message->get_exchange_type(message); | |
296 | ||
297 | status = this->ike_sa->generate_message(this->ike_sa, message, | |
298 | &this->initiating.packet); | |
299 | if (status != SUCCESS) | |
300 | { | |
301 | /* message generation failed. There is nothing more to do than to | |
302 | * close the SA */ | |
303 | message->destroy(message); | |
304 | flush(this); | |
305 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
306 | return DESTROY_ME; | |
307 | } | |
308 | message->destroy(message); | |
309 | ||
310 | charon->sender->send(charon->sender, | |
311 | this->initiating.packet->clone(this->initiating.packet)); | |
312 | ||
313 | return SUCCESS; | |
4a09d9ee MW |
314 | } |
315 | ||
316 | /** | |
317 | * handle exchange collisions | |
318 | */ | |
319 | static bool handle_collisions(private_task_manager_t *this, task_t *task) | |
320 | { | |
321 | return FALSE; | |
322 | } | |
323 | ||
324 | /** | |
325 | * build a response depending on the "passive" task list | |
326 | */ | |
327 | static status_t build_response(private_task_manager_t *this, message_t *request) | |
328 | { | |
329 | enumerator_t *enumerator; | |
330 | task_t *task; | |
331 | message_t *message; | |
332 | host_t *me, *other; | |
333 | bool delete = FALSE; | |
334 | status_t status; | |
335 | ||
336 | me = request->get_destination(request); | |
337 | other = request->get_source(request); | |
338 | ||
339 | message = message_create(IKEV1_MAJOR_VERSION, IKEV1_MINOR_VERSION); | |
340 | message->set_exchange_type(message, request->get_exchange_type(request)); | |
341 | /* send response along the path the request came in */ | |
342 | message->set_source(message, me->clone(me)); | |
343 | message->set_destination(message, other->clone(other)); | |
73aaf76b | 344 | message->set_message_id(message, request->get_message_id(request)); |
4a09d9ee MW |
345 | message->set_request(message, FALSE); |
346 | ||
347 | enumerator = this->passive_tasks->create_enumerator(this->passive_tasks); | |
348 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
349 | { | |
350 | switch (task->build(task, message)) | |
351 | { | |
352 | case SUCCESS: | |
353 | /* task completed, remove it */ | |
354 | this->passive_tasks->remove_at(this->passive_tasks, enumerator); | |
355 | if (!handle_collisions(this, task)) | |
356 | { | |
357 | task->destroy(task); | |
358 | } | |
359 | break; | |
360 | case NEED_MORE: | |
361 | /* processed, but task needs another exchange */ | |
362 | if (handle_collisions(this, task)) | |
363 | { | |
364 | this->passive_tasks->remove_at(this->passive_tasks, | |
365 | enumerator); | |
366 | } | |
367 | break; | |
368 | case FAILED: | |
369 | default: | |
370 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
371 | /* FALL */ | |
372 | case DESTROY_ME: | |
373 | /* destroy IKE_SA, but SEND response first */ | |
374 | delete = TRUE; | |
375 | break; | |
376 | } | |
377 | if (delete) | |
378 | { | |
379 | break; | |
380 | } | |
381 | } | |
382 | enumerator->destroy(enumerator); | |
383 | ||
384 | /* message complete, send it */ | |
385 | DESTROY_IF(this->responding.packet); | |
386 | this->responding.packet = NULL; | |
387 | status = this->ike_sa->generate_message(this->ike_sa, message, | |
388 | &this->responding.packet); | |
389 | message->destroy(message); | |
390 | if (status != SUCCESS) | |
391 | { | |
392 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
393 | return DESTROY_ME; | |
394 | } | |
395 | ||
396 | charon->sender->send(charon->sender, | |
397 | this->responding.packet->clone(this->responding.packet)); | |
398 | if (delete) | |
399 | { | |
400 | return DESTROY_ME; | |
401 | } | |
402 | return SUCCESS; | |
403 | } | |
404 | ||
405 | /** | |
406 | * handle an incoming request message | |
407 | */ | |
408 | static status_t process_request(private_task_manager_t *this, | |
409 | message_t *message) | |
410 | { | |
411 | enumerator_t *enumerator; | |
412 | task_t *task = NULL; | |
413 | ||
414 | if (this->passive_tasks->get_count(this->passive_tasks) == 0) | |
415 | { /* create tasks depending on request type, if not already some queued */ | |
416 | switch (message->get_exchange_type(message)) | |
417 | { | |
418 | case ID_PROT: | |
c73c832c MW |
419 | task = (task_t *)main_mode_create(this->ike_sa, FALSE); |
420 | this->passive_tasks->insert_last(this->passive_tasks, task); | |
4a09d9ee MW |
421 | break; |
422 | case AGGRESSIVE: | |
423 | /* TODO-IKEv1: agressive mode */ | |
424 | return FAILED; | |
425 | case QUICK_MODE: | |
426 | /* TODO-IKEv1: quick mode */ | |
427 | return FAILED; | |
428 | case INFORMATIONAL_V1: | |
429 | /* TODO-IKEv1: informational */ | |
430 | return FAILED; | |
431 | default: | |
432 | return FAILED; | |
433 | } | |
434 | } | |
435 | /* let the tasks process the message */ | |
436 | enumerator = this->passive_tasks->create_enumerator(this->passive_tasks); | |
437 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
438 | { | |
439 | switch (task->process(task, message)) | |
440 | { | |
441 | case SUCCESS: | |
442 | /* task completed, remove it */ | |
443 | this->passive_tasks->remove_at(this->passive_tasks, enumerator); | |
444 | task->destroy(task); | |
445 | break; | |
446 | case NEED_MORE: | |
447 | /* processed, but task needs at least another call to build() */ | |
448 | break; | |
449 | case FAILED: | |
450 | default: | |
451 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
452 | /* FALL */ | |
453 | case DESTROY_ME: | |
454 | /* critical failure, destroy IKE_SA */ | |
455 | this->passive_tasks->remove_at(this->passive_tasks, enumerator); | |
456 | enumerator->destroy(enumerator); | |
457 | task->destroy(task); | |
458 | return DESTROY_ME; | |
459 | } | |
460 | } | |
461 | enumerator->destroy(enumerator); | |
462 | ||
463 | return build_response(this, message); | |
464 | } | |
465 | ||
26b55dc6 MW |
466 | /** |
467 | * handle an incoming response message | |
468 | */ | |
469 | static status_t process_response(private_task_manager_t *this, | |
470 | message_t *message) | |
471 | { | |
472 | enumerator_t *enumerator; | |
473 | task_t *task; | |
474 | ||
475 | if (message->get_exchange_type(message) != this->initiating.type) | |
476 | { | |
477 | DBG1(DBG_IKE, "received %N response, but expected %N", | |
478 | exchange_type_names, message->get_exchange_type(message), | |
479 | exchange_type_names, this->initiating.type); | |
480 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
481 | return DESTROY_ME; | |
482 | } | |
483 | ||
484 | enumerator = this->active_tasks->create_enumerator(this->active_tasks); | |
485 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
486 | { | |
487 | switch (task->process(task, message)) | |
488 | { | |
489 | case SUCCESS: | |
490 | /* task completed, remove it */ | |
491 | this->active_tasks->remove_at(this->active_tasks, enumerator); | |
492 | task->destroy(task); | |
493 | break; | |
494 | case NEED_MORE: | |
495 | /* processed, but task needs another exchange */ | |
496 | break; | |
497 | case FAILED: | |
498 | default: | |
499 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
500 | /* FALL */ | |
501 | case DESTROY_ME: | |
502 | /* critical failure, destroy IKE_SA */ | |
503 | this->active_tasks->remove_at(this->active_tasks, enumerator); | |
504 | enumerator->destroy(enumerator); | |
505 | task->destroy(task); | |
506 | return DESTROY_ME; | |
507 | } | |
508 | } | |
509 | enumerator->destroy(enumerator); | |
510 | ||
511 | this->initiating.type = EXCHANGE_TYPE_UNDEFINED; | |
512 | this->initiating.packet->destroy(this->initiating.packet); | |
513 | this->initiating.packet = NULL; | |
514 | ||
515 | return initiate(this); | |
516 | } | |
517 | ||
4a09d9ee MW |
518 | METHOD(task_manager_t, process_message, status_t, |
519 | private_task_manager_t *this, message_t *msg) | |
520 | { | |
73aaf76b MW |
521 | u_int32_t hash, mid; |
522 | ||
523 | mid = msg->get_message_id(msg); | |
524 | hash = chunk_hash(msg->get_packet_data(msg)); | |
525 | ||
526 | if ((mid && mid == this->initiating.mid) || | |
527 | (this->initiating.mid == 0 && | |
528 | this->active_tasks->get_count(this->active_tasks))) | |
4a09d9ee | 529 | { |
73aaf76b MW |
530 | charon->bus->message(charon->bus, msg, FALSE); |
531 | if (process_response(this, msg) != SUCCESS) | |
4a09d9ee MW |
532 | { |
533 | flush(this); | |
534 | return DESTROY_ME; | |
535 | } | |
536 | } | |
537 | else | |
538 | { | |
73aaf76b MW |
539 | if ((mid && mid == this->responding.mid) || |
540 | hash == this->responding.mid) | |
541 | { | |
542 | DBG1(DBG_IKE, "received retransmit of request with ID %d, " | |
543 | "retransmitting response", mid); | |
544 | charon->sender->send(charon->sender, | |
545 | this->responding.packet->clone(this->responding.packet)); | |
546 | return SUCCESS; | |
547 | } | |
548 | ||
549 | charon->bus->message(charon->bus, msg, TRUE); | |
550 | if (process_request(this, msg) != SUCCESS) | |
26b55dc6 MW |
551 | { |
552 | flush(this); | |
553 | return DESTROY_ME; | |
554 | } | |
73aaf76b MW |
555 | |
556 | if (!mid) | |
557 | { | |
558 | mid = hash; | |
559 | } | |
560 | this->responding.mid = mid; | |
4a09d9ee MW |
561 | } |
562 | return SUCCESS; | |
563 | } | |
564 | ||
565 | METHOD(task_manager_t, queue_task, void, | |
566 | private_task_manager_t *this, task_t *task) | |
567 | { | |
568 | DBG2(DBG_IKE, "queueing %N task", task_type_names, task->get_type(task)); | |
569 | this->queued_tasks->insert_last(this->queued_tasks, task); | |
570 | } | |
571 | ||
572 | METHOD(task_manager_t, adopt_tasks, void, | |
573 | private_task_manager_t *this, task_manager_t *other_public) | |
574 | { | |
575 | private_task_manager_t *other = (private_task_manager_t*)other_public; | |
576 | task_t *task; | |
577 | ||
578 | /* move queued tasks from other to this */ | |
579 | while (other->queued_tasks->remove_last(other->queued_tasks, | |
580 | (void**)&task) == SUCCESS) | |
581 | { | |
582 | DBG2(DBG_IKE, "migrating %N task", task_type_names, task->get_type(task)); | |
583 | task->migrate(task, this->ike_sa); | |
584 | this->queued_tasks->insert_first(this->queued_tasks, task); | |
585 | } | |
586 | } | |
587 | ||
588 | METHOD(task_manager_t, busy, bool, | |
589 | private_task_manager_t *this) | |
590 | { | |
591 | return (this->active_tasks->get_count(this->active_tasks) > 0); | |
592 | } | |
593 | ||
594 | METHOD(task_manager_t, incr_mid, void, | |
595 | private_task_manager_t *this, bool initiate) | |
596 | { | |
4a09d9ee MW |
597 | } |
598 | ||
599 | METHOD(task_manager_t, reset, void, | |
600 | private_task_manager_t *this, u_int32_t initiate, u_int32_t respond) | |
601 | { | |
4a09d9ee MW |
602 | } |
603 | ||
604 | METHOD(task_manager_t, create_task_enumerator, enumerator_t*, | |
605 | private_task_manager_t *this, task_queue_t queue) | |
606 | { | |
607 | switch (queue) | |
608 | { | |
609 | case TASK_QUEUE_ACTIVE: | |
610 | return this->active_tasks->create_enumerator(this->active_tasks); | |
611 | case TASK_QUEUE_PASSIVE: | |
612 | return this->passive_tasks->create_enumerator(this->passive_tasks); | |
613 | case TASK_QUEUE_QUEUED: | |
614 | return this->queued_tasks->create_enumerator(this->queued_tasks); | |
615 | default: | |
616 | return enumerator_create_empty(); | |
617 | } | |
618 | } | |
619 | ||
620 | METHOD(task_manager_t, destroy, void, | |
621 | private_task_manager_t *this) | |
622 | { | |
623 | flush(this); | |
624 | ||
625 | this->active_tasks->destroy(this->active_tasks); | |
626 | this->queued_tasks->destroy(this->queued_tasks); | |
627 | this->passive_tasks->destroy(this->passive_tasks); | |
628 | ||
629 | DESTROY_IF(this->responding.packet); | |
630 | DESTROY_IF(this->initiating.packet); | |
73aaf76b | 631 | DESTROY_IF(this->rng); |
4a09d9ee MW |
632 | free(this); |
633 | } | |
634 | ||
635 | /* | |
636 | * see header file | |
637 | */ | |
638 | task_manager_v1_t *task_manager_v1_create(ike_sa_t *ike_sa) | |
639 | { | |
640 | private_task_manager_t *this; | |
641 | ||
642 | INIT(this, | |
643 | .public = { | |
644 | .task_manager = { | |
645 | .process_message = _process_message, | |
646 | .queue_task = _queue_task, | |
647 | .initiate = _initiate, | |
648 | .retransmit = _retransmit, | |
649 | .incr_mid = _incr_mid, | |
650 | .reset = _reset, | |
651 | .adopt_tasks = _adopt_tasks, | |
652 | .busy = _busy, | |
653 | .create_task_enumerator = _create_task_enumerator, | |
654 | .destroy = _destroy, | |
655 | }, | |
656 | }, | |
657 | .ike_sa = ike_sa, | |
658 | .initiating.type = EXCHANGE_TYPE_UNDEFINED, | |
73aaf76b | 659 | .rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK), |
4a09d9ee MW |
660 | .queued_tasks = linked_list_create(), |
661 | .active_tasks = linked_list_create(), | |
662 | .passive_tasks = linked_list_create(), | |
663 | .retransmit_tries = lib->settings->get_int(lib->settings, | |
664 | "charon.retransmit_tries", RETRANSMIT_TRIES), | |
665 | .retransmit_timeout = lib->settings->get_double(lib->settings, | |
666 | "charon.retransmit_timeout", RETRANSMIT_TIMEOUT), | |
667 | .retransmit_base = lib->settings->get_double(lib->settings, | |
668 | "charon.retransmit_base", RETRANSMIT_BASE), | |
669 | ); | |
670 | ||
671 | return &this->public; | |
672 | } |