Line data Source code
1 : /*
2 : * IEEE 802.1X-2004 Authenticator - EAPOL state machine
3 : * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
4 : *
5 : * This software may be distributed under the terms of the BSD license.
6 : * See README for more details.
7 : */
8 :
9 : #include "includes.h"
10 :
11 : #include "common.h"
12 : #include "eloop.h"
13 : #include "state_machine.h"
14 : #include "common/eapol_common.h"
15 : #include "eap_common/eap_defs.h"
16 : #include "eap_common/eap_common.h"
17 : #include "eap_server/eap.h"
18 : #include "eapol_auth_sm.h"
19 : #include "eapol_auth_sm_i.h"
20 :
21 : #define STATE_MACHINE_DATA struct eapol_state_machine
22 : #define STATE_MACHINE_DEBUG_PREFIX "IEEE 802.1X"
23 : #define STATE_MACHINE_ADDR sm->addr
24 :
25 : static struct eapol_callbacks eapol_cb;
26 :
27 : /* EAPOL state machines are described in IEEE Std 802.1X-2004, Chap. 8.2 */
28 :
29 : #define setPortAuthorized() \
30 : sm->eapol->cb.set_port_authorized(sm->eapol->conf.ctx, sm->sta, 1)
31 : #define setPortUnauthorized() \
32 : sm->eapol->cb.set_port_authorized(sm->eapol->conf.ctx, sm->sta, 0)
33 :
34 : /* procedures */
35 : #define txCannedFail() eapol_auth_tx_canned_eap(sm, 0)
36 : #define txCannedSuccess() eapol_auth_tx_canned_eap(sm, 1)
37 : #define txReq() eapol_auth_tx_req(sm)
38 : #define abortAuth() sm->eapol->cb.abort_auth(sm->eapol->conf.ctx, sm->sta)
39 : #define txKey() sm->eapol->cb.tx_key(sm->eapol->conf.ctx, sm->sta)
40 : #define processKey() do { } while (0)
41 :
42 :
43 : static void eapol_sm_step_run(struct eapol_state_machine *sm);
44 : static void eapol_sm_step_cb(void *eloop_ctx, void *timeout_ctx);
45 : static void eapol_auth_initialize(struct eapol_state_machine *sm);
46 :
47 :
48 1082 : static void eapol_auth_logger(struct eapol_authenticator *eapol,
49 : const u8 *addr, eapol_logger_level level,
50 : const char *txt)
51 : {
52 1082 : if (eapol->cb.logger == NULL)
53 1082 : return;
54 1082 : eapol->cb.logger(eapol->conf.ctx, addr, level, txt);
55 : }
56 :
57 :
58 1082 : static void eapol_auth_vlogger(struct eapol_authenticator *eapol,
59 : const u8 *addr, eapol_logger_level level,
60 : const char *fmt, ...)
61 : {
62 : char *format;
63 : int maxlen;
64 : va_list ap;
65 :
66 1082 : if (eapol->cb.logger == NULL)
67 0 : return;
68 :
69 1082 : maxlen = os_strlen(fmt) + 100;
70 1082 : format = os_malloc(maxlen);
71 1082 : if (!format)
72 0 : return;
73 :
74 1082 : va_start(ap, fmt);
75 1082 : vsnprintf(format, maxlen, fmt, ap);
76 1082 : va_end(ap);
77 :
78 1082 : eapol_auth_logger(eapol, addr, level, format);
79 :
80 1082 : os_free(format);
81 : }
82 :
83 :
84 0 : static void eapol_auth_tx_canned_eap(struct eapol_state_machine *sm,
85 : int success)
86 : {
87 : struct eap_hdr eap;
88 :
89 0 : os_memset(&eap, 0, sizeof(eap));
90 :
91 0 : eap.code = success ? EAP_CODE_SUCCESS : EAP_CODE_FAILURE;
92 0 : eap.identifier = ++sm->last_eap_id;
93 0 : eap.length = host_to_be16(sizeof(eap));
94 :
95 0 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_DEBUG,
96 : "Sending canned EAP packet %s (identifier %d)",
97 0 : success ? "SUCCESS" : "FAILURE", eap.identifier);
98 0 : sm->eapol->cb.eapol_send(sm->eapol->conf.ctx, sm->sta,
99 : IEEE802_1X_TYPE_EAP_PACKET,
100 : (u8 *) &eap, sizeof(eap));
101 0 : sm->dot1xAuthEapolFramesTx++;
102 0 : }
103 :
104 :
105 830 : static void eapol_auth_tx_req(struct eapol_state_machine *sm)
106 : {
107 1660 : if (sm->eap_if->eapReqData == NULL ||
108 830 : wpabuf_len(sm->eap_if->eapReqData) < sizeof(struct eap_hdr)) {
109 0 : eapol_auth_logger(sm->eapol, sm->addr,
110 : EAPOL_LOGGER_DEBUG,
111 : "TxReq called, but there is no EAP request "
112 : "from authentication server");
113 0 : return;
114 : }
115 :
116 830 : if (sm->flags & EAPOL_SM_WAIT_START) {
117 0 : wpa_printf(MSG_DEBUG, "EAPOL: Drop EAPOL TX to " MACSTR
118 : " while waiting for EAPOL-Start",
119 0 : MAC2STR(sm->addr));
120 0 : return;
121 : }
122 :
123 830 : sm->last_eap_id = eap_get_id(sm->eap_if->eapReqData);
124 830 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_DEBUG,
125 : "Sending EAP Packet (identifier %d)",
126 830 : sm->last_eap_id);
127 2490 : sm->eapol->cb.eapol_send(sm->eapol->conf.ctx, sm->sta,
128 : IEEE802_1X_TYPE_EAP_PACKET,
129 830 : wpabuf_head(sm->eap_if->eapReqData),
130 830 : wpabuf_len(sm->eap_if->eapReqData));
131 830 : sm->dot1xAuthEapolFramesTx++;
132 830 : if (eap_get_type(sm->eap_if->eapReqData) == EAP_TYPE_IDENTITY)
133 126 : sm->dot1xAuthEapolReqIdFramesTx++;
134 : else
135 704 : sm->dot1xAuthEapolReqFramesTx++;
136 : }
137 :
138 :
139 : /**
140 : * eapol_port_timers_tick - Port Timers state machine
141 : * @eloop_ctx: struct eapol_state_machine *
142 : * @timeout_ctx: Not used
143 : *
144 : * This statemachine is implemented as a function that will be called
145 : * once a second as a registered event loop timeout.
146 : */
147 0 : static void eapol_port_timers_tick(void *eloop_ctx, void *timeout_ctx)
148 : {
149 0 : struct eapol_state_machine *state = timeout_ctx;
150 :
151 0 : if (state->aWhile > 0) {
152 0 : state->aWhile--;
153 0 : if (state->aWhile == 0) {
154 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
155 : " - aWhile --> 0",
156 0 : MAC2STR(state->addr));
157 : }
158 : }
159 :
160 0 : if (state->quietWhile > 0) {
161 0 : state->quietWhile--;
162 0 : if (state->quietWhile == 0) {
163 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
164 : " - quietWhile --> 0",
165 0 : MAC2STR(state->addr));
166 : }
167 : }
168 :
169 0 : if (state->reAuthWhen > 0) {
170 0 : state->reAuthWhen--;
171 0 : if (state->reAuthWhen == 0) {
172 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
173 : " - reAuthWhen --> 0",
174 0 : MAC2STR(state->addr));
175 : }
176 : }
177 :
178 0 : if (state->eap_if->retransWhile > 0) {
179 0 : state->eap_if->retransWhile--;
180 0 : if (state->eap_if->retransWhile == 0) {
181 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
182 : " - (EAP) retransWhile --> 0",
183 0 : MAC2STR(state->addr));
184 : }
185 : }
186 :
187 0 : eapol_sm_step_run(state);
188 :
189 0 : eloop_register_timeout(1, 0, eapol_port_timers_tick, eloop_ctx, state);
190 0 : }
191 :
192 :
193 :
194 : /* Authenticator PAE state machine */
195 :
196 881 : SM_STATE(AUTH_PAE, INITIALIZE)
197 : {
198 881 : SM_ENTRY_MA(AUTH_PAE, INITIALIZE, auth_pae);
199 881 : sm->portMode = Auto;
200 881 : }
201 :
202 :
203 126 : SM_STATE(AUTH_PAE, DISCONNECTED)
204 : {
205 126 : int from_initialize = sm->auth_pae_state == AUTH_PAE_INITIALIZE;
206 :
207 126 : if (sm->eapolLogoff) {
208 0 : if (sm->auth_pae_state == AUTH_PAE_CONNECTING)
209 0 : sm->authEapLogoffsWhileConnecting++;
210 0 : else if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATED)
211 0 : sm->authAuthEapLogoffWhileAuthenticated++;
212 : }
213 :
214 126 : SM_ENTRY_MA(AUTH_PAE, DISCONNECTED, auth_pae);
215 :
216 126 : sm->authPortStatus = Unauthorized;
217 126 : setPortUnauthorized();
218 126 : sm->reAuthCount = 0;
219 126 : sm->eapolLogoff = FALSE;
220 126 : if (!from_initialize) {
221 0 : sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 0,
222 0 : sm->flags & EAPOL_SM_PREAUTH,
223 : sm->remediation);
224 : }
225 126 : }
226 :
227 :
228 126 : SM_STATE(AUTH_PAE, RESTART)
229 : {
230 126 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATED) {
231 0 : if (sm->reAuthenticate)
232 0 : sm->authAuthReauthsWhileAuthenticated++;
233 0 : if (sm->eapolStart)
234 0 : sm->authAuthEapStartsWhileAuthenticated++;
235 0 : if (sm->eapolLogoff)
236 0 : sm->authAuthEapLogoffWhileAuthenticated++;
237 : }
238 :
239 126 : SM_ENTRY_MA(AUTH_PAE, RESTART, auth_pae);
240 :
241 126 : sm->eap_if->eapRestart = TRUE;
242 126 : }
243 :
244 :
245 126 : SM_STATE(AUTH_PAE, CONNECTING)
246 : {
247 126 : if (sm->auth_pae_state != AUTH_PAE_CONNECTING)
248 126 : sm->authEntersConnecting++;
249 :
250 126 : SM_ENTRY_MA(AUTH_PAE, CONNECTING, auth_pae);
251 :
252 126 : sm->reAuthenticate = FALSE;
253 126 : sm->reAuthCount++;
254 126 : }
255 :
256 :
257 126 : SM_STATE(AUTH_PAE, HELD)
258 : {
259 126 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING && sm->authFail)
260 126 : sm->authAuthFailWhileAuthenticating++;
261 :
262 126 : SM_ENTRY_MA(AUTH_PAE, HELD, auth_pae);
263 :
264 126 : sm->authPortStatus = Unauthorized;
265 126 : setPortUnauthorized();
266 126 : sm->quietWhile = sm->quietPeriod;
267 126 : sm->eapolLogoff = FALSE;
268 :
269 252 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_WARNING,
270 : "authentication failed - EAP type: %d (%s)",
271 126 : sm->eap_type_authsrv,
272 126 : eap_server_get_name(0, sm->eap_type_authsrv));
273 126 : if (sm->eap_type_authsrv != sm->eap_type_supp) {
274 252 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_INFO,
275 : "Supplicant used different EAP type: "
276 126 : "%d (%s)", sm->eap_type_supp,
277 126 : eap_server_get_name(0, sm->eap_type_supp));
278 : }
279 252 : sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 0,
280 126 : sm->flags & EAPOL_SM_PREAUTH, sm->remediation);
281 126 : }
282 :
283 :
284 0 : SM_STATE(AUTH_PAE, AUTHENTICATED)
285 : {
286 0 : char *extra = "";
287 :
288 0 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING && sm->authSuccess)
289 0 : sm->authAuthSuccessesWhileAuthenticating++;
290 :
291 0 : SM_ENTRY_MA(AUTH_PAE, AUTHENTICATED, auth_pae);
292 :
293 0 : sm->authPortStatus = Authorized;
294 0 : setPortAuthorized();
295 0 : sm->reAuthCount = 0;
296 0 : if (sm->flags & EAPOL_SM_PREAUTH)
297 0 : extra = " (pre-authentication)";
298 0 : else if (sm->flags & EAPOL_SM_FROM_PMKSA_CACHE)
299 0 : extra = " (PMKSA cache)";
300 0 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_INFO,
301 : "authenticated - EAP type: %d (%s)%s",
302 0 : sm->eap_type_authsrv,
303 0 : eap_server_get_name(0, sm->eap_type_authsrv),
304 : extra);
305 0 : sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 1,
306 0 : sm->flags & EAPOL_SM_PREAUTH, sm->remediation);
307 0 : }
308 :
309 :
310 126 : SM_STATE(AUTH_PAE, AUTHENTICATING)
311 : {
312 126 : SM_ENTRY_MA(AUTH_PAE, AUTHENTICATING, auth_pae);
313 :
314 126 : sm->eapolStart = FALSE;
315 126 : sm->authSuccess = FALSE;
316 126 : sm->authFail = FALSE;
317 126 : sm->authTimeout = FALSE;
318 126 : sm->authStart = TRUE;
319 126 : sm->keyRun = FALSE;
320 126 : sm->keyDone = FALSE;
321 126 : }
322 :
323 :
324 0 : SM_STATE(AUTH_PAE, ABORTING)
325 : {
326 0 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING) {
327 0 : if (sm->authTimeout)
328 0 : sm->authAuthTimeoutsWhileAuthenticating++;
329 0 : if (sm->eapolStart)
330 0 : sm->authAuthEapStartsWhileAuthenticating++;
331 0 : if (sm->eapolLogoff)
332 0 : sm->authAuthEapLogoffWhileAuthenticating++;
333 : }
334 :
335 0 : SM_ENTRY_MA(AUTH_PAE, ABORTING, auth_pae);
336 :
337 0 : sm->authAbort = TRUE;
338 0 : sm->keyRun = FALSE;
339 0 : sm->keyDone = FALSE;
340 0 : }
341 :
342 :
343 0 : SM_STATE(AUTH_PAE, FORCE_AUTH)
344 : {
345 0 : SM_ENTRY_MA(AUTH_PAE, FORCE_AUTH, auth_pae);
346 :
347 0 : sm->authPortStatus = Authorized;
348 0 : setPortAuthorized();
349 0 : sm->portMode = ForceAuthorized;
350 0 : sm->eapolStart = FALSE;
351 0 : txCannedSuccess();
352 0 : }
353 :
354 :
355 0 : SM_STATE(AUTH_PAE, FORCE_UNAUTH)
356 : {
357 0 : SM_ENTRY_MA(AUTH_PAE, FORCE_UNAUTH, auth_pae);
358 :
359 0 : sm->authPortStatus = Unauthorized;
360 0 : setPortUnauthorized();
361 0 : sm->portMode = ForceUnauthorized;
362 0 : sm->eapolStart = FALSE;
363 0 : txCannedFail();
364 0 : }
365 :
366 :
367 4579 : SM_STEP(AUTH_PAE)
368 : {
369 9032 : if ((sm->portControl == Auto && sm->portMode != sm->portControl) ||
370 8906 : sm->initialize || !sm->eap_if->portEnabled)
371 881 : SM_ENTER_GLOBAL(AUTH_PAE, INITIALIZE);
372 3698 : else if (sm->portControl == ForceAuthorized &&
373 0 : sm->portMode != sm->portControl &&
374 0 : !(sm->initialize || !sm->eap_if->portEnabled))
375 0 : SM_ENTER_GLOBAL(AUTH_PAE, FORCE_AUTH);
376 3698 : else if (sm->portControl == ForceUnauthorized &&
377 0 : sm->portMode != sm->portControl &&
378 0 : !(sm->initialize || !sm->eap_if->portEnabled))
379 0 : SM_ENTER_GLOBAL(AUTH_PAE, FORCE_UNAUTH);
380 : else {
381 3698 : switch (sm->auth_pae_state) {
382 : case AUTH_PAE_INITIALIZE:
383 126 : SM_ENTER(AUTH_PAE, DISCONNECTED);
384 126 : break;
385 : case AUTH_PAE_DISCONNECTED:
386 126 : SM_ENTER(AUTH_PAE, RESTART);
387 126 : break;
388 : case AUTH_PAE_RESTART:
389 252 : if (!sm->eap_if->eapRestart)
390 126 : SM_ENTER(AUTH_PAE, CONNECTING);
391 252 : break;
392 : case AUTH_PAE_HELD:
393 0 : if (sm->quietWhile == 0)
394 0 : SM_ENTER(AUTH_PAE, RESTART);
395 0 : break;
396 : case AUTH_PAE_CONNECTING:
397 126 : if (sm->eapolLogoff || sm->reAuthCount > sm->reAuthMax)
398 0 : SM_ENTER(AUTH_PAE, DISCONNECTED);
399 252 : else if ((sm->eap_if->eapReq &&
400 126 : sm->reAuthCount <= sm->reAuthMax) ||
401 0 : sm->eap_if->eapSuccess || sm->eap_if->eapFail)
402 126 : SM_ENTER(AUTH_PAE, AUTHENTICATING);
403 126 : break;
404 : case AUTH_PAE_AUTHENTICATED:
405 0 : if (sm->eapolStart || sm->reAuthenticate)
406 0 : SM_ENTER(AUTH_PAE, RESTART);
407 0 : else if (sm->eapolLogoff || !sm->portValid)
408 0 : SM_ENTER(AUTH_PAE, DISCONNECTED);
409 0 : break;
410 : case AUTH_PAE_AUTHENTICATING:
411 3068 : if (sm->authSuccess && sm->portValid)
412 0 : SM_ENTER(AUTH_PAE, AUTHENTICATED);
413 6010 : else if (sm->authFail ||
414 2942 : (sm->keyDone && !sm->portValid))
415 126 : SM_ENTER(AUTH_PAE, HELD);
416 5884 : else if (sm->eapolStart || sm->eapolLogoff ||
417 2942 : sm->authTimeout)
418 0 : SM_ENTER(AUTH_PAE, ABORTING);
419 3068 : break;
420 : case AUTH_PAE_ABORTING:
421 0 : if (sm->eapolLogoff && !sm->authAbort)
422 0 : SM_ENTER(AUTH_PAE, DISCONNECTED);
423 0 : else if (!sm->eapolLogoff && !sm->authAbort)
424 0 : SM_ENTER(AUTH_PAE, RESTART);
425 0 : break;
426 : case AUTH_PAE_FORCE_AUTH:
427 0 : if (sm->eapolStart)
428 0 : SM_ENTER(AUTH_PAE, FORCE_AUTH);
429 0 : break;
430 : case AUTH_PAE_FORCE_UNAUTH:
431 0 : if (sm->eapolStart)
432 0 : SM_ENTER(AUTH_PAE, FORCE_UNAUTH);
433 0 : break;
434 : }
435 : }
436 4579 : }
437 :
438 :
439 :
440 : /* Backend Authentication state machine */
441 :
442 126 : SM_STATE(BE_AUTH, INITIALIZE)
443 : {
444 126 : SM_ENTRY_MA(BE_AUTH, INITIALIZE, be_auth);
445 :
446 126 : abortAuth();
447 126 : sm->eap_if->eapNoReq = FALSE;
448 126 : sm->authAbort = FALSE;
449 126 : }
450 :
451 :
452 704 : SM_STATE(BE_AUTH, REQUEST)
453 : {
454 704 : SM_ENTRY_MA(BE_AUTH, REQUEST, be_auth);
455 :
456 704 : txReq();
457 704 : sm->eap_if->eapReq = FALSE;
458 704 : sm->backendOtherRequestsToSupplicant++;
459 :
460 : /*
461 : * Clearing eapolEap here is not specified in IEEE Std 802.1X-2004, but
462 : * it looks like this would be logical thing to do there since the old
463 : * EAP response would not be valid anymore after the new EAP request
464 : * was sent out.
465 : *
466 : * A race condition has been reported, in which hostapd ended up
467 : * sending out EAP-Response/Identity as a response to the first
468 : * EAP-Request from the main EAP method. This can be avoided by
469 : * clearing eapolEap here.
470 : */
471 704 : sm->eapolEap = FALSE;
472 704 : }
473 :
474 :
475 704 : SM_STATE(BE_AUTH, RESPONSE)
476 : {
477 704 : SM_ENTRY_MA(BE_AUTH, RESPONSE, be_auth);
478 :
479 704 : sm->authTimeout = FALSE;
480 704 : sm->eapolEap = FALSE;
481 704 : sm->eap_if->eapNoReq = FALSE;
482 704 : sm->aWhile = sm->serverTimeout;
483 704 : sm->eap_if->eapResp = TRUE;
484 : /* sendRespToServer(); */
485 704 : sm->backendResponses++;
486 704 : }
487 :
488 :
489 0 : SM_STATE(BE_AUTH, SUCCESS)
490 : {
491 0 : SM_ENTRY_MA(BE_AUTH, SUCCESS, be_auth);
492 :
493 0 : txReq();
494 0 : sm->authSuccess = TRUE;
495 0 : sm->keyRun = TRUE;
496 0 : }
497 :
498 :
499 126 : SM_STATE(BE_AUTH, FAIL)
500 : {
501 126 : SM_ENTRY_MA(BE_AUTH, FAIL, be_auth);
502 :
503 126 : txReq();
504 126 : sm->authFail = TRUE;
505 126 : }
506 :
507 :
508 0 : SM_STATE(BE_AUTH, TIMEOUT)
509 : {
510 0 : SM_ENTRY_MA(BE_AUTH, TIMEOUT, be_auth);
511 :
512 0 : sm->authTimeout = TRUE;
513 0 : }
514 :
515 :
516 252 : SM_STATE(BE_AUTH, IDLE)
517 : {
518 252 : SM_ENTRY_MA(BE_AUTH, IDLE, be_auth);
519 :
520 252 : sm->authStart = FALSE;
521 252 : }
522 :
523 :
524 0 : SM_STATE(BE_AUTH, IGNORE)
525 : {
526 0 : SM_ENTRY_MA(BE_AUTH, IGNORE, be_auth);
527 :
528 0 : sm->eap_if->eapNoReq = FALSE;
529 0 : }
530 :
531 :
532 4579 : SM_STEP(BE_AUTH)
533 : {
534 4579 : if (sm->portControl != Auto || sm->initialize || sm->authAbort) {
535 126 : SM_ENTER_GLOBAL(BE_AUTH, INITIALIZE);
536 4705 : return;
537 : }
538 :
539 4453 : switch (sm->be_auth_state) {
540 : case BE_AUTH_INITIALIZE:
541 126 : SM_ENTER(BE_AUTH, IDLE);
542 126 : break;
543 : case BE_AUTH_REQUEST:
544 1534 : if (sm->eapolEap)
545 704 : SM_ENTER(BE_AUTH, RESPONSE);
546 830 : else if (sm->eap_if->eapReq)
547 0 : SM_ENTER(BE_AUTH, REQUEST);
548 830 : else if (sm->eap_if->eapTimeout)
549 0 : SM_ENTER(BE_AUTH, TIMEOUT);
550 1534 : break;
551 : case BE_AUTH_RESPONSE:
552 1408 : if (sm->eap_if->eapNoReq)
553 0 : SM_ENTER(BE_AUTH, IGNORE);
554 1408 : if (sm->eap_if->eapReq) {
555 578 : sm->backendAccessChallenges++;
556 578 : SM_ENTER(BE_AUTH, REQUEST);
557 830 : } else if (sm->aWhile == 0)
558 0 : SM_ENTER(BE_AUTH, TIMEOUT);
559 830 : else if (sm->eap_if->eapFail) {
560 126 : sm->backendAuthFails++;
561 126 : SM_ENTER(BE_AUTH, FAIL);
562 704 : } else if (sm->eap_if->eapSuccess) {
563 0 : sm->backendAuthSuccesses++;
564 0 : SM_ENTER(BE_AUTH, SUCCESS);
565 : }
566 1408 : break;
567 : case BE_AUTH_SUCCESS:
568 0 : SM_ENTER(BE_AUTH, IDLE);
569 0 : break;
570 : case BE_AUTH_FAIL:
571 126 : SM_ENTER(BE_AUTH, IDLE);
572 126 : break;
573 : case BE_AUTH_TIMEOUT:
574 0 : SM_ENTER(BE_AUTH, IDLE);
575 0 : break;
576 : case BE_AUTH_IDLE:
577 1259 : if (sm->eap_if->eapFail && sm->authStart)
578 0 : SM_ENTER(BE_AUTH, FAIL);
579 1259 : else if (sm->eap_if->eapReq && sm->authStart)
580 126 : SM_ENTER(BE_AUTH, REQUEST);
581 1133 : else if (sm->eap_if->eapSuccess && sm->authStart)
582 0 : SM_ENTER(BE_AUTH, SUCCESS);
583 1259 : break;
584 : case BE_AUTH_IGNORE:
585 0 : if (sm->eapolEap)
586 0 : SM_ENTER(BE_AUTH, RESPONSE);
587 0 : else if (sm->eap_if->eapReq)
588 0 : SM_ENTER(BE_AUTH, REQUEST);
589 0 : else if (sm->eap_if->eapTimeout)
590 0 : SM_ENTER(BE_AUTH, TIMEOUT);
591 0 : break;
592 : }
593 : }
594 :
595 :
596 :
597 : /* Reauthentication Timer state machine */
598 :
599 4327 : SM_STATE(REAUTH_TIMER, INITIALIZE)
600 : {
601 4327 : SM_ENTRY_MA(REAUTH_TIMER, INITIALIZE, reauth_timer);
602 :
603 4327 : sm->reAuthWhen = sm->reAuthPeriod;
604 4327 : }
605 :
606 :
607 0 : SM_STATE(REAUTH_TIMER, REAUTHENTICATE)
608 : {
609 0 : SM_ENTRY_MA(REAUTH_TIMER, REAUTHENTICATE, reauth_timer);
610 :
611 0 : sm->reAuthenticate = TRUE;
612 0 : sm->eapol->cb.eapol_event(sm->eapol->conf.ctx, sm->sta,
613 : EAPOL_AUTH_REAUTHENTICATE);
614 0 : }
615 :
616 :
617 4579 : SM_STEP(REAUTH_TIMER)
618 : {
619 9032 : if (sm->portControl != Auto || sm->initialize ||
620 4705 : sm->authPortStatus == Unauthorized || !sm->reAuthEnabled) {
621 4327 : SM_ENTER_GLOBAL(REAUTH_TIMER, INITIALIZE);
622 8906 : return;
623 : }
624 :
625 252 : switch (sm->reauth_timer_state) {
626 : case REAUTH_TIMER_INITIALIZE:
627 252 : if (sm->reAuthWhen == 0)
628 0 : SM_ENTER(REAUTH_TIMER, REAUTHENTICATE);
629 252 : break;
630 : case REAUTH_TIMER_REAUTHENTICATE:
631 0 : SM_ENTER(REAUTH_TIMER, INITIALIZE);
632 0 : break;
633 : }
634 : }
635 :
636 :
637 :
638 : /* Authenticator Key Transmit state machine */
639 :
640 126 : SM_STATE(AUTH_KEY_TX, NO_KEY_TRANSMIT)
641 : {
642 126 : SM_ENTRY_MA(AUTH_KEY_TX, NO_KEY_TRANSMIT, auth_key_tx);
643 126 : }
644 :
645 :
646 0 : SM_STATE(AUTH_KEY_TX, KEY_TRANSMIT)
647 : {
648 0 : SM_ENTRY_MA(AUTH_KEY_TX, KEY_TRANSMIT, auth_key_tx);
649 :
650 0 : txKey();
651 0 : sm->eap_if->eapKeyAvailable = FALSE;
652 0 : sm->keyDone = TRUE;
653 0 : }
654 :
655 :
656 4579 : SM_STEP(AUTH_KEY_TX)
657 : {
658 4579 : if (sm->initialize || sm->portControl != Auto) {
659 126 : SM_ENTER_GLOBAL(AUTH_KEY_TX, NO_KEY_TRANSMIT);
660 4705 : return;
661 : }
662 :
663 4453 : switch (sm->auth_key_tx_state) {
664 : case AUTH_KEY_TX_NO_KEY_TRANSMIT:
665 4453 : if (sm->keyTxEnabled && sm->eap_if->eapKeyAvailable &&
666 0 : sm->keyRun && !(sm->flags & EAPOL_SM_USES_WPA))
667 0 : SM_ENTER(AUTH_KEY_TX, KEY_TRANSMIT);
668 4453 : break;
669 : case AUTH_KEY_TX_KEY_TRANSMIT:
670 0 : if (!sm->keyTxEnabled || !sm->keyRun)
671 0 : SM_ENTER(AUTH_KEY_TX, NO_KEY_TRANSMIT);
672 0 : else if (sm->eap_if->eapKeyAvailable)
673 0 : SM_ENTER(AUTH_KEY_TX, KEY_TRANSMIT);
674 0 : break;
675 : }
676 : }
677 :
678 :
679 :
680 : /* Key Receive state machine */
681 :
682 1007 : SM_STATE(KEY_RX, NO_KEY_RECEIVE)
683 : {
684 1007 : SM_ENTRY_MA(KEY_RX, NO_KEY_RECEIVE, key_rx);
685 1007 : }
686 :
687 :
688 0 : SM_STATE(KEY_RX, KEY_RECEIVE)
689 : {
690 0 : SM_ENTRY_MA(KEY_RX, KEY_RECEIVE, key_rx);
691 :
692 : processKey();
693 0 : sm->rxKey = FALSE;
694 0 : }
695 :
696 :
697 4579 : SM_STEP(KEY_RX)
698 : {
699 4579 : if (sm->initialize || !sm->eap_if->portEnabled) {
700 1007 : SM_ENTER_GLOBAL(KEY_RX, NO_KEY_RECEIVE);
701 5586 : return;
702 : }
703 :
704 3572 : switch (sm->key_rx_state) {
705 : case KEY_RX_NO_KEY_RECEIVE:
706 3572 : if (sm->rxKey)
707 0 : SM_ENTER(KEY_RX, KEY_RECEIVE);
708 3572 : break;
709 : case KEY_RX_KEY_RECEIVE:
710 0 : if (sm->rxKey)
711 0 : SM_ENTER(KEY_RX, KEY_RECEIVE);
712 0 : break;
713 : }
714 : }
715 :
716 :
717 :
718 : /* Controlled Directions state machine */
719 :
720 126 : SM_STATE(CTRL_DIR, FORCE_BOTH)
721 : {
722 126 : SM_ENTRY_MA(CTRL_DIR, FORCE_BOTH, ctrl_dir);
723 126 : sm->operControlledDirections = Both;
724 126 : }
725 :
726 :
727 126 : SM_STATE(CTRL_DIR, IN_OR_BOTH)
728 : {
729 126 : SM_ENTRY_MA(CTRL_DIR, IN_OR_BOTH, ctrl_dir);
730 126 : sm->operControlledDirections = sm->adminControlledDirections;
731 126 : }
732 :
733 :
734 4579 : SM_STEP(CTRL_DIR)
735 : {
736 4579 : if (sm->initialize) {
737 126 : SM_ENTER_GLOBAL(CTRL_DIR, IN_OR_BOTH);
738 4705 : return;
739 : }
740 :
741 4453 : switch (sm->ctrl_dir_state) {
742 : case CTRL_DIR_FORCE_BOTH:
743 4327 : if (sm->eap_if->portEnabled && sm->operEdge)
744 0 : SM_ENTER(CTRL_DIR, IN_OR_BOTH);
745 4327 : break;
746 : case CTRL_DIR_IN_OR_BOTH:
747 252 : if (sm->operControlledDirections !=
748 126 : sm->adminControlledDirections)
749 0 : SM_ENTER(CTRL_DIR, IN_OR_BOTH);
750 126 : if (!sm->eap_if->portEnabled || !sm->operEdge)
751 126 : SM_ENTER(CTRL_DIR, FORCE_BOTH);
752 126 : break;
753 : }
754 : }
755 :
756 :
757 :
758 : struct eapol_state_machine *
759 126 : eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
760 : int flags, const struct wpabuf *assoc_wps_ie,
761 : const struct wpabuf *assoc_p2p_ie, void *sta_ctx,
762 : const char *identity, const char *radius_cui)
763 : {
764 : struct eapol_state_machine *sm;
765 : struct eap_config eap_conf;
766 :
767 126 : if (eapol == NULL)
768 0 : return NULL;
769 :
770 126 : sm = os_zalloc(sizeof(*sm));
771 126 : if (sm == NULL) {
772 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X state machine allocation "
773 : "failed");
774 0 : return NULL;
775 : }
776 126 : sm->radius_identifier = -1;
777 126 : os_memcpy(sm->addr, addr, ETH_ALEN);
778 126 : sm->flags = flags;
779 :
780 126 : sm->eapol = eapol;
781 126 : sm->sta = sta_ctx;
782 :
783 : /* Set default values for state machine constants */
784 126 : sm->auth_pae_state = AUTH_PAE_INITIALIZE;
785 126 : sm->quietPeriod = AUTH_PAE_DEFAULT_quietPeriod;
786 126 : sm->reAuthMax = AUTH_PAE_DEFAULT_reAuthMax;
787 :
788 126 : sm->be_auth_state = BE_AUTH_INITIALIZE;
789 126 : sm->serverTimeout = BE_AUTH_DEFAULT_serverTimeout;
790 :
791 126 : sm->reauth_timer_state = REAUTH_TIMER_INITIALIZE;
792 126 : sm->reAuthPeriod = eapol->conf.eap_reauth_period;
793 126 : sm->reAuthEnabled = eapol->conf.eap_reauth_period > 0 ? TRUE : FALSE;
794 :
795 126 : sm->auth_key_tx_state = AUTH_KEY_TX_NO_KEY_TRANSMIT;
796 :
797 126 : sm->key_rx_state = KEY_RX_NO_KEY_RECEIVE;
798 :
799 126 : sm->ctrl_dir_state = CTRL_DIR_IN_OR_BOTH;
800 :
801 126 : sm->portControl = Auto;
802 :
803 126 : if (!eapol->conf.wpa &&
804 0 : (eapol->default_wep_key || eapol->conf.individual_wep_key_len > 0))
805 0 : sm->keyTxEnabled = TRUE;
806 : else
807 126 : sm->keyTxEnabled = FALSE;
808 126 : if (eapol->conf.wpa)
809 126 : sm->portValid = FALSE;
810 : else
811 0 : sm->portValid = TRUE;
812 :
813 126 : os_memset(&eap_conf, 0, sizeof(eap_conf));
814 126 : eap_conf.eap_server = eapol->conf.eap_server;
815 126 : eap_conf.ssl_ctx = eapol->conf.ssl_ctx;
816 126 : eap_conf.msg_ctx = eapol->conf.msg_ctx;
817 126 : eap_conf.eap_sim_db_priv = eapol->conf.eap_sim_db_priv;
818 126 : eap_conf.pac_opaque_encr_key = eapol->conf.pac_opaque_encr_key;
819 126 : eap_conf.eap_fast_a_id = eapol->conf.eap_fast_a_id;
820 126 : eap_conf.eap_fast_a_id_len = eapol->conf.eap_fast_a_id_len;
821 126 : eap_conf.eap_fast_a_id_info = eapol->conf.eap_fast_a_id_info;
822 126 : eap_conf.eap_fast_prov = eapol->conf.eap_fast_prov;
823 126 : eap_conf.pac_key_lifetime = eapol->conf.pac_key_lifetime;
824 126 : eap_conf.pac_key_refresh_time = eapol->conf.pac_key_refresh_time;
825 126 : eap_conf.eap_sim_aka_result_ind = eapol->conf.eap_sim_aka_result_ind;
826 126 : eap_conf.tnc = eapol->conf.tnc;
827 126 : eap_conf.wps = eapol->conf.wps;
828 126 : eap_conf.assoc_wps_ie = assoc_wps_ie;
829 126 : eap_conf.assoc_p2p_ie = assoc_p2p_ie;
830 126 : eap_conf.peer_addr = addr;
831 126 : eap_conf.fragment_size = eapol->conf.fragment_size;
832 126 : eap_conf.pwd_group = eapol->conf.pwd_group;
833 126 : eap_conf.pbc_in_m1 = eapol->conf.pbc_in_m1;
834 126 : eap_conf.server_id = eapol->conf.server_id;
835 126 : eap_conf.server_id_len = eapol->conf.server_id_len;
836 126 : sm->eap = eap_server_sm_init(sm, &eapol_cb, &eap_conf);
837 126 : if (sm->eap == NULL) {
838 0 : eapol_auth_free(sm);
839 0 : return NULL;
840 : }
841 126 : sm->eap_if = eap_get_interface(sm->eap);
842 :
843 126 : eapol_auth_initialize(sm);
844 :
845 126 : if (identity) {
846 0 : sm->identity = (u8 *) os_strdup(identity);
847 0 : if (sm->identity)
848 0 : sm->identity_len = os_strlen(identity);
849 : }
850 126 : if (radius_cui)
851 0 : sm->radius_cui = wpabuf_alloc_copy(radius_cui,
852 : os_strlen(radius_cui));
853 :
854 126 : return sm;
855 : }
856 :
857 :
858 126 : void eapol_auth_free(struct eapol_state_machine *sm)
859 : {
860 126 : if (sm == NULL)
861 126 : return;
862 :
863 126 : eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
864 126 : eloop_cancel_timeout(eapol_sm_step_cb, sm, NULL);
865 126 : if (sm->eap)
866 126 : eap_server_sm_deinit(sm->eap);
867 126 : os_free(sm);
868 : }
869 :
870 :
871 24627 : static int eapol_sm_sta_entry_alive(struct eapol_authenticator *eapol,
872 : const u8 *addr)
873 : {
874 24627 : return eapol->cb.sta_entry_alive(eapol->conf.ctx, addr);
875 : }
876 :
877 :
878 1333 : static void eapol_sm_step_run(struct eapol_state_machine *sm)
879 : {
880 1333 : struct eapol_authenticator *eapol = sm->eapol;
881 : u8 addr[ETH_ALEN];
882 : unsigned int prev_auth_pae, prev_be_auth, prev_reauth_timer,
883 : prev_auth_key_tx, prev_key_rx, prev_ctrl_dir;
884 1333 : int max_steps = 100;
885 :
886 1333 : os_memcpy(addr, sm->addr, ETH_ALEN);
887 :
888 : /*
889 : * Allow EAPOL state machines to run as long as there are state
890 : * changes, but exit and return here through event loop if more than
891 : * 100 steps is needed as a precaution against infinite loops inside
892 : * eloop callback.
893 : */
894 : restart:
895 4579 : prev_auth_pae = sm->auth_pae_state;
896 4579 : prev_be_auth = sm->be_auth_state;
897 4579 : prev_reauth_timer = sm->reauth_timer_state;
898 4579 : prev_auth_key_tx = sm->auth_key_tx_state;
899 4579 : prev_key_rx = sm->key_rx_state;
900 4579 : prev_ctrl_dir = sm->ctrl_dir_state;
901 :
902 4579 : SM_STEP_RUN(AUTH_PAE);
903 4579 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
904 4579 : SM_STEP_RUN(BE_AUTH);
905 4579 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
906 4579 : SM_STEP_RUN(REAUTH_TIMER);
907 4579 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
908 4579 : SM_STEP_RUN(AUTH_KEY_TX);
909 4579 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
910 4579 : SM_STEP_RUN(KEY_RX);
911 4579 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
912 4579 : SM_STEP_RUN(CTRL_DIR);
913 :
914 8402 : if (prev_auth_pae != sm->auth_pae_state ||
915 6112 : prev_be_auth != sm->be_auth_state ||
916 4578 : prev_reauth_timer != sm->reauth_timer_state ||
917 4578 : prev_auth_key_tx != sm->auth_key_tx_state ||
918 4578 : prev_key_rx != sm->key_rx_state ||
919 2289 : prev_ctrl_dir != sm->ctrl_dir_state) {
920 2290 : if (--max_steps > 0)
921 2290 : goto restart;
922 : /* Re-run from eloop timeout */
923 0 : eapol_auth_step(sm);
924 0 : return;
925 : }
926 :
927 2289 : if (eapol_sm_sta_entry_alive(eapol, addr) && sm->eap) {
928 2037 : if (eap_server_sm_step(sm->eap)) {
929 956 : if (--max_steps > 0)
930 956 : goto restart;
931 : /* Re-run from eloop timeout */
932 0 : eapol_auth_step(sm);
933 0 : return;
934 : }
935 :
936 : /* TODO: find a better location for this */
937 1081 : if (sm->eap_if->aaaEapResp) {
938 0 : sm->eap_if->aaaEapResp = FALSE;
939 0 : if (sm->eap_if->aaaEapRespData == NULL) {
940 0 : wpa_printf(MSG_DEBUG, "EAPOL: aaaEapResp set, "
941 : "but no aaaEapRespData available");
942 0 : return;
943 : }
944 0 : sm->eapol->cb.aaa_send(
945 0 : sm->eapol->conf.ctx, sm->sta,
946 0 : wpabuf_head(sm->eap_if->aaaEapRespData),
947 0 : wpabuf_len(sm->eap_if->aaaEapRespData));
948 : }
949 : }
950 :
951 1333 : if (eapol_sm_sta_entry_alive(eapol, addr))
952 1081 : sm->eapol->cb.eapol_event(sm->eapol->conf.ctx, sm->sta,
953 : EAPOL_AUTH_SM_CHANGE);
954 : }
955 :
956 :
957 1081 : static void eapol_sm_step_cb(void *eloop_ctx, void *timeout_ctx)
958 : {
959 1081 : struct eapol_state_machine *sm = eloop_ctx;
960 1081 : eapol_sm_step_run(sm);
961 1081 : }
962 :
963 :
964 : /**
965 : * eapol_auth_step - Advance EAPOL state machines
966 : * @sm: EAPOL state machine
967 : *
968 : * This function is called to advance EAPOL state machines after any change
969 : * that could affect their state.
970 : */
971 1211 : void eapol_auth_step(struct eapol_state_machine *sm)
972 : {
973 : /*
974 : * Run eapol_sm_step_run from a registered timeout to make sure that
975 : * other possible timeouts/events are processed and to avoid long
976 : * function call chains.
977 : */
978 :
979 1211 : eloop_register_timeout(0, 0, eapol_sm_step_cb, sm, NULL);
980 1211 : }
981 :
982 :
983 126 : static void eapol_auth_initialize(struct eapol_state_machine *sm)
984 : {
985 126 : sm->initializing = TRUE;
986 : /* Initialize the state machines by asserting initialize and then
987 : * deasserting it after one step */
988 126 : sm->initialize = TRUE;
989 126 : eapol_sm_step_run(sm);
990 126 : sm->initialize = FALSE;
991 126 : eapol_sm_step_run(sm);
992 126 : sm->initializing = FALSE;
993 :
994 : /* Start one second tick for port timers state machine */
995 126 : eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
996 126 : eloop_register_timeout(1, 0, eapol_port_timers_tick, NULL, sm);
997 126 : }
998 :
999 :
1000 126 : static int eapol_sm_get_eap_user(void *ctx, const u8 *identity,
1001 : size_t identity_len, int phase2,
1002 : struct eap_user *user)
1003 : {
1004 126 : struct eapol_state_machine *sm = ctx;
1005 : int ret;
1006 :
1007 126 : ret = sm->eapol->cb.get_eap_user(sm->eapol->conf.ctx, identity,
1008 : identity_len, phase2, user);
1009 126 : if (user->remediation)
1010 0 : sm->remediation = 1;
1011 126 : return ret;
1012 : }
1013 :
1014 :
1015 126 : static const char * eapol_sm_get_eap_req_id_text(void *ctx, size_t *len)
1016 : {
1017 126 : struct eapol_state_machine *sm = ctx;
1018 126 : *len = sm->eapol->conf.eap_req_id_text_len;
1019 126 : return sm->eapol->conf.eap_req_id_text;
1020 : }
1021 :
1022 :
1023 : static struct eapol_callbacks eapol_cb =
1024 : {
1025 : eapol_sm_get_eap_user,
1026 : eapol_sm_get_eap_req_id_text,
1027 : NULL
1028 : };
1029 :
1030 :
1031 0 : int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx)
1032 : {
1033 0 : if (sm == NULL || ctx == NULL || ctx != sm->eap)
1034 0 : return -1;
1035 :
1036 0 : eap_sm_pending_cb(sm->eap);
1037 0 : eapol_auth_step(sm);
1038 :
1039 0 : return 0;
1040 : }
1041 :
1042 :
1043 140 : static int eapol_auth_conf_clone(struct eapol_auth_config *dst,
1044 : struct eapol_auth_config *src)
1045 : {
1046 140 : dst->ctx = src->ctx;
1047 140 : dst->eap_reauth_period = src->eap_reauth_period;
1048 140 : dst->wpa = src->wpa;
1049 140 : dst->individual_wep_key_len = src->individual_wep_key_len;
1050 140 : dst->eap_server = src->eap_server;
1051 140 : dst->ssl_ctx = src->ssl_ctx;
1052 140 : dst->msg_ctx = src->msg_ctx;
1053 140 : dst->eap_sim_db_priv = src->eap_sim_db_priv;
1054 140 : os_free(dst->eap_req_id_text);
1055 140 : dst->pwd_group = src->pwd_group;
1056 140 : dst->pbc_in_m1 = src->pbc_in_m1;
1057 140 : dst->server_id = src->server_id;
1058 140 : dst->server_id_len = src->server_id_len;
1059 140 : if (src->eap_req_id_text) {
1060 0 : dst->eap_req_id_text = os_malloc(src->eap_req_id_text_len);
1061 0 : if (dst->eap_req_id_text == NULL)
1062 0 : return -1;
1063 0 : os_memcpy(dst->eap_req_id_text, src->eap_req_id_text,
1064 : src->eap_req_id_text_len);
1065 0 : dst->eap_req_id_text_len = src->eap_req_id_text_len;
1066 : } else {
1067 140 : dst->eap_req_id_text = NULL;
1068 140 : dst->eap_req_id_text_len = 0;
1069 : }
1070 140 : if (src->pac_opaque_encr_key) {
1071 0 : dst->pac_opaque_encr_key = os_malloc(16);
1072 0 : if (dst->pac_opaque_encr_key == NULL) {
1073 0 : os_free(dst->eap_req_id_text);
1074 0 : return -1;
1075 : }
1076 0 : os_memcpy(dst->pac_opaque_encr_key, src->pac_opaque_encr_key,
1077 : 16);
1078 : } else
1079 140 : dst->pac_opaque_encr_key = NULL;
1080 140 : if (src->eap_fast_a_id) {
1081 0 : dst->eap_fast_a_id = os_malloc(src->eap_fast_a_id_len);
1082 0 : if (dst->eap_fast_a_id == NULL) {
1083 0 : os_free(dst->eap_req_id_text);
1084 0 : os_free(dst->pac_opaque_encr_key);
1085 0 : return -1;
1086 : }
1087 0 : os_memcpy(dst->eap_fast_a_id, src->eap_fast_a_id,
1088 : src->eap_fast_a_id_len);
1089 0 : dst->eap_fast_a_id_len = src->eap_fast_a_id_len;
1090 : } else
1091 140 : dst->eap_fast_a_id = NULL;
1092 140 : if (src->eap_fast_a_id_info) {
1093 0 : dst->eap_fast_a_id_info = os_strdup(src->eap_fast_a_id_info);
1094 0 : if (dst->eap_fast_a_id_info == NULL) {
1095 0 : os_free(dst->eap_req_id_text);
1096 0 : os_free(dst->pac_opaque_encr_key);
1097 0 : os_free(dst->eap_fast_a_id);
1098 0 : return -1;
1099 : }
1100 : } else
1101 140 : dst->eap_fast_a_id_info = NULL;
1102 140 : dst->eap_fast_prov = src->eap_fast_prov;
1103 140 : dst->pac_key_lifetime = src->pac_key_lifetime;
1104 140 : dst->pac_key_refresh_time = src->pac_key_refresh_time;
1105 140 : dst->eap_sim_aka_result_ind = src->eap_sim_aka_result_ind;
1106 140 : dst->tnc = src->tnc;
1107 140 : dst->wps = src->wps;
1108 140 : dst->fragment_size = src->fragment_size;
1109 140 : return 0;
1110 : }
1111 :
1112 :
1113 140 : static void eapol_auth_conf_free(struct eapol_auth_config *conf)
1114 : {
1115 140 : os_free(conf->eap_req_id_text);
1116 140 : conf->eap_req_id_text = NULL;
1117 140 : os_free(conf->pac_opaque_encr_key);
1118 140 : conf->pac_opaque_encr_key = NULL;
1119 140 : os_free(conf->eap_fast_a_id);
1120 140 : conf->eap_fast_a_id = NULL;
1121 140 : os_free(conf->eap_fast_a_id_info);
1122 140 : conf->eap_fast_a_id_info = NULL;
1123 140 : }
1124 :
1125 :
1126 140 : struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
1127 : struct eapol_auth_cb *cb)
1128 : {
1129 : struct eapol_authenticator *eapol;
1130 :
1131 140 : eapol = os_zalloc(sizeof(*eapol));
1132 140 : if (eapol == NULL)
1133 0 : return NULL;
1134 :
1135 140 : if (eapol_auth_conf_clone(&eapol->conf, conf) < 0) {
1136 0 : os_free(eapol);
1137 0 : return NULL;
1138 : }
1139 :
1140 140 : if (conf->individual_wep_key_len > 0) {
1141 : /* use key0 in individual key and key1 in broadcast key */
1142 0 : eapol->default_wep_key_idx = 1;
1143 : }
1144 :
1145 140 : eapol->cb.eapol_send = cb->eapol_send;
1146 140 : eapol->cb.aaa_send = cb->aaa_send;
1147 140 : eapol->cb.finished = cb->finished;
1148 140 : eapol->cb.get_eap_user = cb->get_eap_user;
1149 140 : eapol->cb.sta_entry_alive = cb->sta_entry_alive;
1150 140 : eapol->cb.logger = cb->logger;
1151 140 : eapol->cb.set_port_authorized = cb->set_port_authorized;
1152 140 : eapol->cb.abort_auth = cb->abort_auth;
1153 140 : eapol->cb.tx_key = cb->tx_key;
1154 140 : eapol->cb.eapol_event = cb->eapol_event;
1155 :
1156 140 : return eapol;
1157 : }
1158 :
1159 :
1160 140 : void eapol_auth_deinit(struct eapol_authenticator *eapol)
1161 : {
1162 140 : if (eapol == NULL)
1163 140 : return;
1164 :
1165 140 : eapol_auth_conf_free(&eapol->conf);
1166 140 : os_free(eapol->default_wep_key);
1167 140 : os_free(eapol);
1168 : }
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