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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> |
744c0801 | 21 | #include <sa/tasks/quick_mode.h> |
4a09d9ee MW |
22 | |
23 | typedef struct exchange_t exchange_t; | |
24 | ||
25 | /** | |
26 | * An exchange in the air, used do detect and handle retransmission | |
27 | */ | |
28 | struct exchange_t { | |
29 | ||
30 | /** | |
31 | * Message ID used for this transaction | |
32 | */ | |
33 | u_int32_t mid; | |
34 | ||
35 | /** | |
36 | * generated packet for retransmission | |
37 | */ | |
38 | packet_t *packet; | |
39 | }; | |
40 | ||
41 | typedef struct private_task_manager_t private_task_manager_t; | |
42 | ||
43 | /** | |
44 | * private data of the task manager | |
45 | */ | |
46 | struct private_task_manager_t { | |
47 | ||
48 | /** | |
49 | * public functions | |
50 | */ | |
51 | task_manager_v1_t public; | |
52 | ||
53 | /** | |
54 | * associated IKE_SA we are serving | |
55 | */ | |
56 | ike_sa_t *ike_sa; | |
57 | ||
73aaf76b MW |
58 | /** |
59 | * RNG to create message IDs | |
60 | */ | |
61 | rng_t *rng; | |
62 | ||
4a09d9ee MW |
63 | /** |
64 | * Exchange we are currently handling as responder | |
65 | */ | |
66 | struct { | |
67 | /** | |
68 | * Message ID of the exchange | |
69 | */ | |
70 | u_int32_t mid; | |
71 | ||
72 | /** | |
73 | * packet for retransmission | |
74 | */ | |
75 | packet_t *packet; | |
76 | ||
77 | } responding; | |
78 | ||
79 | /** | |
80 | * Exchange we are currently handling as initiator | |
81 | */ | |
82 | struct { | |
83 | /** | |
84 | * Message ID of the exchange | |
85 | */ | |
86 | u_int32_t mid; | |
87 | ||
88 | /** | |
89 | * how many times we have retransmitted so far | |
90 | */ | |
91 | u_int retransmitted; | |
92 | ||
93 | /** | |
94 | * packet for retransmission | |
95 | */ | |
96 | packet_t *packet; | |
97 | ||
98 | /** | |
99 | * type of the initated exchange | |
100 | */ | |
101 | exchange_type_t type; | |
102 | ||
103 | } initiating; | |
104 | ||
105 | /** | |
106 | * List of queued tasks not yet in action | |
107 | */ | |
108 | linked_list_t *queued_tasks; | |
109 | ||
110 | /** | |
111 | * List of active tasks, initiated by ourselve | |
112 | */ | |
113 | linked_list_t *active_tasks; | |
114 | ||
115 | /** | |
116 | * List of tasks initiated by peer | |
117 | */ | |
118 | linked_list_t *passive_tasks; | |
119 | ||
4a09d9ee MW |
120 | /** |
121 | * Number of times we retransmit messages before giving up | |
122 | */ | |
123 | u_int retransmit_tries; | |
124 | ||
125 | /** | |
126 | * Retransmission timeout | |
127 | */ | |
128 | double retransmit_timeout; | |
129 | ||
130 | /** | |
131 | * Base to calculate retransmission timeout | |
132 | */ | |
133 | double retransmit_base; | |
134 | }; | |
135 | ||
136 | /** | |
137 | * flush all tasks in the task manager | |
138 | */ | |
139 | static void flush(private_task_manager_t *this) | |
140 | { | |
141 | this->queued_tasks->destroy_offset(this->queued_tasks, | |
142 | offsetof(task_t, destroy)); | |
143 | this->queued_tasks = linked_list_create(); | |
144 | this->passive_tasks->destroy_offset(this->passive_tasks, | |
145 | offsetof(task_t, destroy)); | |
146 | this->passive_tasks = linked_list_create(); | |
147 | this->active_tasks->destroy_offset(this->active_tasks, | |
148 | offsetof(task_t, destroy)); | |
149 | this->active_tasks = linked_list_create(); | |
150 | } | |
151 | ||
152 | METHOD(task_manager_t, retransmit, status_t, | |
153 | private_task_manager_t *this, u_int32_t message_id) | |
154 | { | |
155 | return FAILED; | |
156 | } | |
157 | ||
26b55dc6 MW |
158 | /** |
159 | * move a task of a specific type from the queue to the active list | |
160 | */ | |
161 | static bool activate_task(private_task_manager_t *this, task_type_t type) | |
162 | { | |
163 | enumerator_t *enumerator; | |
164 | task_t *task; | |
165 | bool found = FALSE; | |
166 | ||
167 | enumerator = this->queued_tasks->create_enumerator(this->queued_tasks); | |
168 | while (enumerator->enumerate(enumerator, (void**)&task)) | |
169 | { | |
170 | if (task->get_type(task) == type) | |
171 | { | |
172 | DBG2(DBG_IKE, " activating %N task", task_type_names, type); | |
173 | this->queued_tasks->remove_at(this->queued_tasks, enumerator); | |
174 | this->active_tasks->insert_last(this->active_tasks, task); | |
175 | found = TRUE; | |
176 | break; | |
177 | } | |
178 | } | |
179 | enumerator->destroy(enumerator); | |
180 | return found; | |
181 | } | |
182 | ||
4a09d9ee MW |
183 | METHOD(task_manager_t, initiate, status_t, |
184 | private_task_manager_t *this) | |
185 | { | |
26b55dc6 MW |
186 | enumerator_t *enumerator; |
187 | task_t *task; | |
188 | message_t *message; | |
189 | host_t *me, *other; | |
190 | status_t status; | |
73aaf76b MW |
191 | exchange_type_t exchange = EXCHANGE_TYPE_UNDEFINED; |
192 | ||
193 | if (!this->rng) | |
194 | { | |
195 | DBG1(DBG_IKE, "no RNG supported"); | |
196 | return FAILED; | |
197 | } | |
26b55dc6 MW |
198 | |
199 | if (this->initiating.type != EXCHANGE_TYPE_UNDEFINED) | |
200 | { | |
201 | DBG2(DBG_IKE, "delaying task initiation, %N exchange in progress", | |
202 | exchange_type_names, this->initiating.type); | |
203 | /* do not initiate if we already have a message in the air */ | |
204 | return SUCCESS; | |
205 | } | |
206 | ||
207 | if (this->active_tasks->get_count(this->active_tasks) == 0) | |
208 | { | |
209 | DBG2(DBG_IKE, "activating new tasks"); | |
210 | switch (this->ike_sa->get_state(this->ike_sa)) | |
211 | { | |
212 | case IKE_CREATED: | |
a09972df | 213 | if (activate_task(this, TASK_MAIN_MODE)) |
26b55dc6 MW |
214 | { |
215 | exchange = ID_PROT; | |
216 | } | |
217 | break; | |
744c0801 MW |
218 | case IKE_ESTABLISHED: |
219 | if (activate_task(this, TASK_QUICK_MODE)) | |
220 | { | |
221 | exchange = QUICK_MODE; | |
222 | } | |
223 | break; | |
26b55dc6 MW |
224 | default: |
225 | break; | |
226 | } | |
227 | } | |
228 | else | |
229 | { | |
230 | DBG2(DBG_IKE, "reinitiating already active tasks"); | |
231 | enumerator = this->active_tasks->create_enumerator(this->active_tasks); | |
232 | while (enumerator->enumerate(enumerator, (void**)&task)) | |
233 | { | |
234 | DBG2(DBG_IKE, " %N task", task_type_names, task->get_type(task)); | |
235 | switch (task->get_type(task)) | |
236 | { | |
a09972df | 237 | case TASK_MAIN_MODE: |
26b55dc6 MW |
238 | exchange = ID_PROT; |
239 | break; | |
744c0801 MW |
240 | case TASK_QUICK_MODE: |
241 | exchange = QUICK_MODE; | |
242 | break; | |
26b55dc6 MW |
243 | default: |
244 | continue; | |
245 | } | |
246 | break; | |
247 | } | |
248 | enumerator->destroy(enumerator); | |
249 | } | |
250 | ||
73aaf76b | 251 | if (exchange == EXCHANGE_TYPE_UNDEFINED) |
26b55dc6 MW |
252 | { |
253 | DBG2(DBG_IKE, "nothing to initiate"); | |
254 | /* nothing to do yet... */ | |
255 | return SUCCESS; | |
256 | } | |
257 | ||
258 | me = this->ike_sa->get_my_host(this->ike_sa); | |
259 | other = this->ike_sa->get_other_host(this->ike_sa); | |
260 | ||
261 | message = message_create(IKEV1_MAJOR_VERSION, IKEV1_MINOR_VERSION); | |
262 | if (exchange != ID_PROT) | |
263 | { | |
73aaf76b MW |
264 | this->rng->get_bytes(this->rng, sizeof(this->initiating.mid), |
265 | (void*)&this->initiating.mid); | |
266 | message->set_message_id(message, this->initiating.mid); | |
26b55dc6 MW |
267 | } |
268 | message->set_source(message, me->clone(me)); | |
269 | message->set_destination(message, other->clone(other)); | |
270 | message->set_exchange_type(message, exchange); | |
271 | this->initiating.type = exchange; | |
272 | this->initiating.retransmitted = 0; | |
273 | ||
274 | enumerator = this->active_tasks->create_enumerator(this->active_tasks); | |
275 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
276 | { | |
277 | switch (task->build(task, message)) | |
278 | { | |
279 | case SUCCESS: | |
280 | /* task completed, remove it */ | |
281 | this->active_tasks->remove_at(this->active_tasks, enumerator); | |
282 | task->destroy(task); | |
283 | break; | |
284 | case NEED_MORE: | |
285 | /* processed, but task needs another exchange */ | |
286 | break; | |
287 | case FAILED: | |
288 | default: | |
289 | if (this->ike_sa->get_state(this->ike_sa) != IKE_CONNECTING) | |
290 | { | |
291 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
292 | } | |
293 | /* FALL */ | |
294 | case DESTROY_ME: | |
295 | /* critical failure, destroy IKE_SA */ | |
296 | enumerator->destroy(enumerator); | |
297 | message->destroy(message); | |
298 | flush(this); | |
299 | return DESTROY_ME; | |
300 | } | |
301 | } | |
302 | enumerator->destroy(enumerator); | |
303 | ||
304 | /* update exchange type if a task changed it */ | |
305 | this->initiating.type = message->get_exchange_type(message); | |
306 | ||
307 | status = this->ike_sa->generate_message(this->ike_sa, message, | |
308 | &this->initiating.packet); | |
309 | if (status != SUCCESS) | |
310 | { | |
311 | /* message generation failed. There is nothing more to do than to | |
312 | * close the SA */ | |
313 | message->destroy(message); | |
314 | flush(this); | |
315 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
316 | return DESTROY_ME; | |
317 | } | |
318 | message->destroy(message); | |
319 | ||
320 | charon->sender->send(charon->sender, | |
321 | this->initiating.packet->clone(this->initiating.packet)); | |
322 | ||
323 | return SUCCESS; | |
4a09d9ee MW |
324 | } |
325 | ||
326 | /** | |
327 | * handle exchange collisions | |
328 | */ | |
329 | static bool handle_collisions(private_task_manager_t *this, task_t *task) | |
330 | { | |
331 | return FALSE; | |
332 | } | |
333 | ||
334 | /** | |
335 | * build a response depending on the "passive" task list | |
336 | */ | |
337 | static status_t build_response(private_task_manager_t *this, message_t *request) | |
338 | { | |
339 | enumerator_t *enumerator; | |
340 | task_t *task; | |
341 | message_t *message; | |
342 | host_t *me, *other; | |
343 | bool delete = FALSE; | |
344 | status_t status; | |
345 | ||
346 | me = request->get_destination(request); | |
347 | other = request->get_source(request); | |
348 | ||
349 | message = message_create(IKEV1_MAJOR_VERSION, IKEV1_MINOR_VERSION); | |
350 | message->set_exchange_type(message, request->get_exchange_type(request)); | |
351 | /* send response along the path the request came in */ | |
352 | message->set_source(message, me->clone(me)); | |
353 | message->set_destination(message, other->clone(other)); | |
73aaf76b | 354 | message->set_message_id(message, request->get_message_id(request)); |
4a09d9ee MW |
355 | message->set_request(message, FALSE); |
356 | ||
357 | enumerator = this->passive_tasks->create_enumerator(this->passive_tasks); | |
358 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
359 | { | |
360 | switch (task->build(task, message)) | |
361 | { | |
362 | case SUCCESS: | |
363 | /* task completed, remove it */ | |
364 | this->passive_tasks->remove_at(this->passive_tasks, enumerator); | |
365 | if (!handle_collisions(this, task)) | |
366 | { | |
367 | task->destroy(task); | |
368 | } | |
369 | break; | |
370 | case NEED_MORE: | |
371 | /* processed, but task needs another exchange */ | |
372 | if (handle_collisions(this, task)) | |
373 | { | |
374 | this->passive_tasks->remove_at(this->passive_tasks, | |
375 | enumerator); | |
376 | } | |
377 | break; | |
378 | case FAILED: | |
379 | default: | |
380 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
381 | /* FALL */ | |
382 | case DESTROY_ME: | |
383 | /* destroy IKE_SA, but SEND response first */ | |
384 | delete = TRUE; | |
385 | break; | |
386 | } | |
387 | if (delete) | |
388 | { | |
389 | break; | |
390 | } | |
391 | } | |
392 | enumerator->destroy(enumerator); | |
393 | ||
394 | /* message complete, send it */ | |
395 | DESTROY_IF(this->responding.packet); | |
396 | this->responding.packet = NULL; | |
397 | status = this->ike_sa->generate_message(this->ike_sa, message, | |
398 | &this->responding.packet); | |
399 | message->destroy(message); | |
400 | if (status != SUCCESS) | |
401 | { | |
402 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
403 | return DESTROY_ME; | |
404 | } | |
405 | ||
406 | charon->sender->send(charon->sender, | |
407 | this->responding.packet->clone(this->responding.packet)); | |
408 | if (delete) | |
409 | { | |
410 | return DESTROY_ME; | |
411 | } | |
412 | return SUCCESS; | |
413 | } | |
414 | ||
415 | /** | |
416 | * handle an incoming request message | |
417 | */ | |
418 | static status_t process_request(private_task_manager_t *this, | |
419 | message_t *message) | |
420 | { | |
421 | enumerator_t *enumerator; | |
422 | task_t *task = NULL; | |
423 | ||
424 | if (this->passive_tasks->get_count(this->passive_tasks) == 0) | |
425 | { /* create tasks depending on request type, if not already some queued */ | |
426 | switch (message->get_exchange_type(message)) | |
427 | { | |
428 | case ID_PROT: | |
c73c832c MW |
429 | task = (task_t *)main_mode_create(this->ike_sa, FALSE); |
430 | this->passive_tasks->insert_last(this->passive_tasks, task); | |
4a09d9ee MW |
431 | break; |
432 | case AGGRESSIVE: | |
433 | /* TODO-IKEv1: agressive mode */ | |
434 | return FAILED; | |
435 | case QUICK_MODE: | |
744c0801 MW |
436 | task = (task_t *)quick_mode_create(this->ike_sa, NULL, |
437 | NULL, NULL); | |
438 | this->passive_tasks->insert_last(this->passive_tasks, task); | |
439 | break; | |
4a09d9ee MW |
440 | case INFORMATIONAL_V1: |
441 | /* TODO-IKEv1: informational */ | |
442 | return FAILED; | |
443 | default: | |
444 | return FAILED; | |
445 | } | |
446 | } | |
447 | /* let the tasks process the message */ | |
448 | enumerator = this->passive_tasks->create_enumerator(this->passive_tasks); | |
449 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
450 | { | |
451 | switch (task->process(task, message)) | |
452 | { | |
453 | case SUCCESS: | |
454 | /* task completed, remove it */ | |
455 | this->passive_tasks->remove_at(this->passive_tasks, enumerator); | |
456 | task->destroy(task); | |
457 | break; | |
458 | case NEED_MORE: | |
459 | /* processed, but task needs at least another call to build() */ | |
460 | break; | |
461 | case FAILED: | |
462 | default: | |
463 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
464 | /* FALL */ | |
465 | case DESTROY_ME: | |
466 | /* critical failure, destroy IKE_SA */ | |
467 | this->passive_tasks->remove_at(this->passive_tasks, enumerator); | |
468 | enumerator->destroy(enumerator); | |
469 | task->destroy(task); | |
470 | return DESTROY_ME; | |
471 | } | |
472 | } | |
473 | enumerator->destroy(enumerator); | |
474 | ||
475 | return build_response(this, message); | |
476 | } | |
477 | ||
26b55dc6 MW |
478 | /** |
479 | * handle an incoming response message | |
480 | */ | |
481 | static status_t process_response(private_task_manager_t *this, | |
482 | message_t *message) | |
483 | { | |
484 | enumerator_t *enumerator; | |
485 | task_t *task; | |
486 | ||
487 | if (message->get_exchange_type(message) != this->initiating.type) | |
488 | { | |
489 | DBG1(DBG_IKE, "received %N response, but expected %N", | |
490 | exchange_type_names, message->get_exchange_type(message), | |
491 | exchange_type_names, this->initiating.type); | |
492 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
493 | return DESTROY_ME; | |
494 | } | |
495 | ||
496 | enumerator = this->active_tasks->create_enumerator(this->active_tasks); | |
497 | while (enumerator->enumerate(enumerator, (void*)&task)) | |
498 | { | |
499 | switch (task->process(task, message)) | |
500 | { | |
501 | case SUCCESS: | |
502 | /* task completed, remove it */ | |
503 | this->active_tasks->remove_at(this->active_tasks, enumerator); | |
504 | task->destroy(task); | |
505 | break; | |
506 | case NEED_MORE: | |
507 | /* processed, but task needs another exchange */ | |
508 | break; | |
509 | case FAILED: | |
510 | default: | |
511 | charon->bus->ike_updown(charon->bus, this->ike_sa, FALSE); | |
512 | /* FALL */ | |
513 | case DESTROY_ME: | |
514 | /* critical failure, destroy IKE_SA */ | |
515 | this->active_tasks->remove_at(this->active_tasks, enumerator); | |
516 | enumerator->destroy(enumerator); | |
517 | task->destroy(task); | |
518 | return DESTROY_ME; | |
519 | } | |
520 | } | |
521 | enumerator->destroy(enumerator); | |
522 | ||
523 | this->initiating.type = EXCHANGE_TYPE_UNDEFINED; | |
524 | this->initiating.packet->destroy(this->initiating.packet); | |
525 | this->initiating.packet = NULL; | |
526 | ||
527 | return initiate(this); | |
528 | } | |
529 | ||
4a09d9ee MW |
530 | METHOD(task_manager_t, process_message, status_t, |
531 | private_task_manager_t *this, message_t *msg) | |
532 | { | |
73aaf76b MW |
533 | u_int32_t hash, mid; |
534 | ||
535 | mid = msg->get_message_id(msg); | |
536 | hash = chunk_hash(msg->get_packet_data(msg)); | |
537 | ||
538 | if ((mid && mid == this->initiating.mid) || | |
539 | (this->initiating.mid == 0 && | |
540 | this->active_tasks->get_count(this->active_tasks))) | |
4a09d9ee | 541 | { |
73aaf76b MW |
542 | charon->bus->message(charon->bus, msg, FALSE); |
543 | if (process_response(this, msg) != SUCCESS) | |
4a09d9ee MW |
544 | { |
545 | flush(this); | |
546 | return DESTROY_ME; | |
547 | } | |
548 | } | |
549 | else | |
550 | { | |
73aaf76b MW |
551 | if ((mid && mid == this->responding.mid) || |
552 | hash == this->responding.mid) | |
553 | { | |
554 | DBG1(DBG_IKE, "received retransmit of request with ID %d, " | |
555 | "retransmitting response", mid); | |
556 | charon->sender->send(charon->sender, | |
557 | this->responding.packet->clone(this->responding.packet)); | |
558 | return SUCCESS; | |
559 | } | |
560 | ||
561 | charon->bus->message(charon->bus, msg, TRUE); | |
562 | if (process_request(this, msg) != SUCCESS) | |
26b55dc6 MW |
563 | { |
564 | flush(this); | |
565 | return DESTROY_ME; | |
566 | } | |
73aaf76b MW |
567 | |
568 | if (!mid) | |
569 | { | |
570 | mid = hash; | |
571 | } | |
572 | this->responding.mid = mid; | |
4a09d9ee MW |
573 | } |
574 | return SUCCESS; | |
575 | } | |
576 | ||
577 | METHOD(task_manager_t, queue_task, void, | |
578 | private_task_manager_t *this, task_t *task) | |
579 | { | |
580 | DBG2(DBG_IKE, "queueing %N task", task_type_names, task->get_type(task)); | |
581 | this->queued_tasks->insert_last(this->queued_tasks, task); | |
582 | } | |
583 | ||
584 | METHOD(task_manager_t, adopt_tasks, void, | |
585 | private_task_manager_t *this, task_manager_t *other_public) | |
586 | { | |
587 | private_task_manager_t *other = (private_task_manager_t*)other_public; | |
588 | task_t *task; | |
589 | ||
590 | /* move queued tasks from other to this */ | |
591 | while (other->queued_tasks->remove_last(other->queued_tasks, | |
592 | (void**)&task) == SUCCESS) | |
593 | { | |
594 | DBG2(DBG_IKE, "migrating %N task", task_type_names, task->get_type(task)); | |
595 | task->migrate(task, this->ike_sa); | |
596 | this->queued_tasks->insert_first(this->queued_tasks, task); | |
597 | } | |
598 | } | |
599 | ||
600 | METHOD(task_manager_t, busy, bool, | |
601 | private_task_manager_t *this) | |
602 | { | |
603 | return (this->active_tasks->get_count(this->active_tasks) > 0); | |
604 | } | |
605 | ||
606 | METHOD(task_manager_t, incr_mid, void, | |
607 | private_task_manager_t *this, bool initiate) | |
608 | { | |
4a09d9ee MW |
609 | } |
610 | ||
611 | METHOD(task_manager_t, reset, void, | |
612 | private_task_manager_t *this, u_int32_t initiate, u_int32_t respond) | |
613 | { | |
4a09d9ee MW |
614 | } |
615 | ||
616 | METHOD(task_manager_t, create_task_enumerator, enumerator_t*, | |
617 | private_task_manager_t *this, task_queue_t queue) | |
618 | { | |
619 | switch (queue) | |
620 | { | |
621 | case TASK_QUEUE_ACTIVE: | |
622 | return this->active_tasks->create_enumerator(this->active_tasks); | |
623 | case TASK_QUEUE_PASSIVE: | |
624 | return this->passive_tasks->create_enumerator(this->passive_tasks); | |
625 | case TASK_QUEUE_QUEUED: | |
626 | return this->queued_tasks->create_enumerator(this->queued_tasks); | |
627 | default: | |
628 | return enumerator_create_empty(); | |
629 | } | |
630 | } | |
631 | ||
632 | METHOD(task_manager_t, destroy, void, | |
633 | private_task_manager_t *this) | |
634 | { | |
635 | flush(this); | |
636 | ||
637 | this->active_tasks->destroy(this->active_tasks); | |
638 | this->queued_tasks->destroy(this->queued_tasks); | |
639 | this->passive_tasks->destroy(this->passive_tasks); | |
640 | ||
641 | DESTROY_IF(this->responding.packet); | |
642 | DESTROY_IF(this->initiating.packet); | |
73aaf76b | 643 | DESTROY_IF(this->rng); |
4a09d9ee MW |
644 | free(this); |
645 | } | |
646 | ||
647 | /* | |
648 | * see header file | |
649 | */ | |
650 | task_manager_v1_t *task_manager_v1_create(ike_sa_t *ike_sa) | |
651 | { | |
652 | private_task_manager_t *this; | |
653 | ||
654 | INIT(this, | |
655 | .public = { | |
656 | .task_manager = { | |
657 | .process_message = _process_message, | |
658 | .queue_task = _queue_task, | |
659 | .initiate = _initiate, | |
660 | .retransmit = _retransmit, | |
661 | .incr_mid = _incr_mid, | |
662 | .reset = _reset, | |
663 | .adopt_tasks = _adopt_tasks, | |
664 | .busy = _busy, | |
665 | .create_task_enumerator = _create_task_enumerator, | |
666 | .destroy = _destroy, | |
667 | }, | |
668 | }, | |
669 | .ike_sa = ike_sa, | |
670 | .initiating.type = EXCHANGE_TYPE_UNDEFINED, | |
73aaf76b | 671 | .rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK), |
4a09d9ee MW |
672 | .queued_tasks = linked_list_create(), |
673 | .active_tasks = linked_list_create(), | |
674 | .passive_tasks = linked_list_create(), | |
675 | .retransmit_tries = lib->settings->get_int(lib->settings, | |
676 | "charon.retransmit_tries", RETRANSMIT_TRIES), | |
677 | .retransmit_timeout = lib->settings->get_double(lib->settings, | |
678 | "charon.retransmit_timeout", RETRANSMIT_TIMEOUT), | |
679 | .retransmit_base = lib->settings->get_double(lib->settings, | |
680 | "charon.retransmit_base", RETRANSMIT_BASE), | |
681 | ); | |
682 | ||
683 | return &this->public; | |
684 | } |