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[thirdparty/hostap.git] / src / eapol_auth / eapol_auth_sm.c
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6fc6879b 1/*
2773ca09 2 * IEEE 802.1X-2004 Authenticator - EAPOL state machine
cfb5c08f 3 * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM		 7 */
8
9#include "includes.h"
10
f55802e8 11#include "common.h"
6fc6879b 12#include "eloop.h"
6fc6879b 13#include "state_machine.h"
e0e14a7b
JM		 14#include "common/eapol_common.h"
15#include "eap_common/eap_defs.h"
6fc6879b 16#include "eap_common/eap_common.h"
e0e14a7b
JM		 17#include "eap_server/eap.h"
18#include "eapol_auth_sm.h"
19#include "eapol_auth_sm_i.h"
6fc6879b
JM		 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
8b423edb 25static const struct eapol_callbacks eapol_cb;
6fc6879b
JM		 26
27/* EAPOL state machines are described in IEEE Std 802.1X-2004, Chap. 8.2 */
28
29#define setPortAuthorized() \
a2befd37 30sm->eapol->cb.set_port_authorized(sm->eapol->conf.ctx, sm->sta, 1)
6fc6879b 31#define setPortUnauthorized() \
a2befd37 32sm->eapol->cb.set_port_authorized(sm->eapol->conf.ctx, sm->sta, 0)
6fc6879b
JM		 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)
a2befd37
JM		 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)
6fc6879b
JM		 40#define processKey() do { } while (0)
41
42
43static void eapol_sm_step_run(struct eapol_state_machine *sm);
44static void eapol_sm_step_cb(void *eloop_ctx, void *timeout_ctx);
ee58e871 45static void eapol_auth_initialize(struct eapol_state_machine *sm);
2a5156a6 46static void eapol_auth_conf_free(struct eapol_auth_config *conf);
6fc6879b
JM		 47
48
49static void eapol_auth_logger(struct eapol_authenticator *eapol,
fa04fa10 50 const u8 *addr, eapol_logger_level level,
6fc6879b
JM		 51 const char *txt)
52{
53 if (eapol->cb.logger == NULL)
54 return;
a2befd37 55 eapol->cb.logger(eapol->conf.ctx, addr, level, txt);
6fc6879b
JM		 56}
57
58
59static void eapol_auth_vlogger(struct eapol_authenticator *eapol,
fa04fa10 60 const u8 *addr, eapol_logger_level level,
6fc6879b
JM		 61 const char *fmt, ...)
62{
63 char *format;
64 int maxlen;
65 va_list ap;
66
67 if (eapol->cb.logger == NULL)
68 return;
69
70 maxlen = os_strlen(fmt) + 100;
71 format = os_malloc(maxlen);
72 if (!format)
73 return;
74
75 va_start(ap, fmt);
76 vsnprintf(format, maxlen, fmt, ap);
77 va_end(ap);
78
79 eapol_auth_logger(eapol, addr, level, format);
80
81 os_free(format);
82}
83
84
85static void eapol_auth_tx_canned_eap(struct eapol_state_machine *sm,
86 int success)
87{
88 struct eap_hdr eap;
89
90 os_memset(&eap, 0, sizeof(eap));
91
92 eap.code = success ? EAP_CODE_SUCCESS : EAP_CODE_FAILURE;
93 eap.identifier = ++sm->last_eap_id;
94 eap.length = host_to_be16(sizeof(eap));
95
96 eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_DEBUG,
97 "Sending canned EAP packet %s (identifier %d)",
98 success ? "SUCCESS" : "FAILURE", eap.identifier);
a2befd37
JM		 99 sm->eapol->cb.eapol_send(sm->eapol->conf.ctx, sm->sta,
100 IEEE802_1X_TYPE_EAP_PACKET,
6fc6879b
JM		 101 (u8 *) &eap, sizeof(eap));
102 sm->dot1xAuthEapolFramesTx++;
103}
104
105
106static void eapol_auth_tx_req(struct eapol_state_machine *sm)
107{
108 if (sm->eap_if->eapReqData == NULL ||
109 wpabuf_len(sm->eap_if->eapReqData) < sizeof(struct eap_hdr)) {
110 eapol_auth_logger(sm->eapol, sm->addr,
111 EAPOL_LOGGER_DEBUG,
112 "TxReq called, but there is no EAP request "
113 "from authentication server");
114 return;
115 }
116
117 if (sm->flags & EAPOL_SM_WAIT_START) {
118 wpa_printf(MSG_DEBUG, "EAPOL: Drop EAPOL TX to " MACSTR
119 " while waiting for EAPOL-Start",
120 MAC2STR(sm->addr));
121 return;
122 }
123
124 sm->last_eap_id = eap_get_id(sm->eap_if->eapReqData);
125 eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_DEBUG,
126 "Sending EAP Packet (identifier %d)",
127 sm->last_eap_id);
a2befd37
JM		 128 sm->eapol->cb.eapol_send(sm->eapol->conf.ctx, sm->sta,
129 IEEE802_1X_TYPE_EAP_PACKET,
6fc6879b
JM		 130 wpabuf_head(sm->eap_if->eapReqData),
131 wpabuf_len(sm->eap_if->eapReqData));
132 sm->dot1xAuthEapolFramesTx++;
133 if (eap_get_type(sm->eap_if->eapReqData) == EAP_TYPE_IDENTITY)
134 sm->dot1xAuthEapolReqIdFramesTx++;
135 else
136 sm->dot1xAuthEapolReqFramesTx++;
137}
138
139
1c6e69cc
JM		 140/**
141 * eapol_port_timers_tick - Port Timers state machine
142 * @eloop_ctx: struct eapol_state_machine *
143 * @timeout_ctx: Not used
144 *
145 * This statemachine is implemented as a function that will be called
146 * once a second as a registered event loop timeout.
147 */
6fc6879b
JM		 148static void eapol_port_timers_tick(void *eloop_ctx, void *timeout_ctx)
149{
150 struct eapol_state_machine *state = timeout_ctx;
151
152 if (state->aWhile > 0) {
153 state->aWhile--;
154 if (state->aWhile == 0) {
155 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
156 " - aWhile --> 0",
157 MAC2STR(state->addr));
158 }
159 }
160
161 if (state->quietWhile > 0) {
162 state->quietWhile--;
163 if (state->quietWhile == 0) {
164 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
165 " - quietWhile --> 0",
166 MAC2STR(state->addr));
167 }
168 }
169
170 if (state->reAuthWhen > 0) {
171 state->reAuthWhen--;
172 if (state->reAuthWhen == 0) {
173 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
174 " - reAuthWhen --> 0",
175 MAC2STR(state->addr));
176 }
177 }
178
8e09c6d2
JM		 179 if (state->eap_if->retransWhile > 0) {
180 state->eap_if->retransWhile--;
181 if (state->eap_if->retransWhile == 0) {
182 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
183 " - (EAP) retransWhile --> 0",
184 MAC2STR(state->addr));
185 }
186 }
187
6fc6879b
JM		 188 eapol_sm_step_run(state);
189
190 eloop_register_timeout(1, 0, eapol_port_timers_tick, eloop_ctx, state);
191}
192
193
194
195/* Authenticator PAE state machine */
196
197SM_STATE(AUTH_PAE, INITIALIZE)
198{
199 SM_ENTRY_MA(AUTH_PAE, INITIALIZE, auth_pae);
200 sm->portMode = Auto;
dee20202
JM		 201
202 /*
203 * Clearing keyRun here is not specified in IEEE Std 802.1X-2004, but
204 * it looks like this would be logical thing to do here since the
205 * EAPOL-Key exchange is not possible in this state. It is possible to
206 * get here on disconnection event without advancing to the
207 * AUTHENTICATING state to clear keyRun before the IEEE 802.11 RSN
208 * authenticator state machine runs and that may advance from
209 * AUTHENTICATION2 to INITPMK if keyRun = TRUE has been left from the
210 * last association. This can be avoided by clearing keyRun here.
211 */
212 sm->keyRun = FALSE;
6fc6879b
JM		 213}
214
215
216SM_STATE(AUTH_PAE, DISCONNECTED)
217{
218 int from_initialize = sm->auth_pae_state == AUTH_PAE_INITIALIZE;
219
220 if (sm->eapolLogoff) {
221 if (sm->auth_pae_state == AUTH_PAE_CONNECTING)
222 sm->authEapLogoffsWhileConnecting++;
223 else if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATED)
224 sm->authAuthEapLogoffWhileAuthenticated++;
225 }
226
227 SM_ENTRY_MA(AUTH_PAE, DISCONNECTED, auth_pae);
228
229 sm->authPortStatus = Unauthorized;
230 setPortUnauthorized();
231 sm->reAuthCount = 0;
232 sm->eapolLogoff = FALSE;
233 if (!from_initialize) {
a2befd37 234 sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 0,
8d2a9921
JM		 235 sm->flags & EAPOL_SM_PREAUTH,
236 sm->remediation);
6fc6879b
JM		 237 }
238}
239
240
241SM_STATE(AUTH_PAE, RESTART)
242{
243 if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATED) {
244 if (sm->reAuthenticate)
245 sm->authAuthReauthsWhileAuthenticated++;
246 if (sm->eapolStart)
247 sm->authAuthEapStartsWhileAuthenticated++;
248 if (sm->eapolLogoff)
249 sm->authAuthEapLogoffWhileAuthenticated++;
250 }
251
252 SM_ENTRY_MA(AUTH_PAE, RESTART, auth_pae);
253
254 sm->eap_if->eapRestart = TRUE;
255}
256
257
258SM_STATE(AUTH_PAE, CONNECTING)
259{
260 if (sm->auth_pae_state != AUTH_PAE_CONNECTING)
261 sm->authEntersConnecting++;
262
263 SM_ENTRY_MA(AUTH_PAE, CONNECTING, auth_pae);
264
265 sm->reAuthenticate = FALSE;
266 sm->reAuthCount++;
267}
268
269
270SM_STATE(AUTH_PAE, HELD)
271{
272 if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING && sm->authFail)
273 sm->authAuthFailWhileAuthenticating++;
274
275 SM_ENTRY_MA(AUTH_PAE, HELD, auth_pae);
276
277 sm->authPortStatus = Unauthorized;
278 setPortUnauthorized();
279 sm->quietWhile = sm->quietPeriod;
280 sm->eapolLogoff = FALSE;
281
282 eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_WARNING,
283 "authentication failed - EAP type: %d (%s)",
284 sm->eap_type_authsrv,
2773ca09 285 eap_server_get_name(0, sm->eap_type_authsrv));
6fc6879b
JM		 286 if (sm->eap_type_authsrv != sm->eap_type_supp) {
287 eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_INFO,
288 "Supplicant used different EAP type: "
289 "%d (%s)", sm->eap_type_supp,
2773ca09 290 eap_server_get_name(0, sm->eap_type_supp));
6fc6879b 291 }
a2befd37 292 sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 0,
8d2a9921 293 sm->flags & EAPOL_SM_PREAUTH, sm->remediation);
6fc6879b
JM		 294}
295
296
297SM_STATE(AUTH_PAE, AUTHENTICATED)
298{
299 char *extra = "";
300
301 if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING && sm->authSuccess)
302 sm->authAuthSuccessesWhileAuthenticating++;
303
304 SM_ENTRY_MA(AUTH_PAE, AUTHENTICATED, auth_pae);
305
306 sm->authPortStatus = Authorized;
307 setPortAuthorized();
308 sm->reAuthCount = 0;
309 if (sm->flags & EAPOL_SM_PREAUTH)
310 extra = " (pre-authentication)";
c02d52b4 311 else if (sm->flags & EAPOL_SM_FROM_PMKSA_CACHE)
6fc6879b
JM		 312 extra = " (PMKSA cache)";
313 eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_INFO,
314 "authenticated - EAP type: %d (%s)%s",
315 sm->eap_type_authsrv,
2773ca09
JM		 316 eap_server_get_name(0, sm->eap_type_authsrv),
317 extra);
a2befd37 318 sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 1,
8d2a9921 319 sm->flags & EAPOL_SM_PREAUTH, sm->remediation);
6fc6879b
JM		 320}
321
322
323SM_STATE(AUTH_PAE, AUTHENTICATING)
324{
325 SM_ENTRY_MA(AUTH_PAE, AUTHENTICATING, auth_pae);
326
327 sm->eapolStart = FALSE;
328 sm->authSuccess = FALSE;
329 sm->authFail = FALSE;
330 sm->authTimeout = FALSE;
331 sm->authStart = TRUE;
332 sm->keyRun = FALSE;
333 sm->keyDone = FALSE;
334}
335
336
337SM_STATE(AUTH_PAE, ABORTING)
338{
339 if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING) {
340 if (sm->authTimeout)
341 sm->authAuthTimeoutsWhileAuthenticating++;
342 if (sm->eapolStart)
343 sm->authAuthEapStartsWhileAuthenticating++;
344 if (sm->eapolLogoff)
345 sm->authAuthEapLogoffWhileAuthenticating++;
346 }
347
348 SM_ENTRY_MA(AUTH_PAE, ABORTING, auth_pae);
349
350 sm->authAbort = TRUE;
351 sm->keyRun = FALSE;
352 sm->keyDone = FALSE;
353}
354
355
356SM_STATE(AUTH_PAE, FORCE_AUTH)
357{
358 SM_ENTRY_MA(AUTH_PAE, FORCE_AUTH, auth_pae);
359
360 sm->authPortStatus = Authorized;
361 setPortAuthorized();
362 sm->portMode = ForceAuthorized;
363 sm->eapolStart = FALSE;
364 txCannedSuccess();
365}
366
367
368SM_STATE(AUTH_PAE, FORCE_UNAUTH)
369{
370 SM_ENTRY_MA(AUTH_PAE, FORCE_UNAUTH, auth_pae);
371
372 sm->authPortStatus = Unauthorized;
373 setPortUnauthorized();
374 sm->portMode = ForceUnauthorized;
375 sm->eapolStart = FALSE;
376 txCannedFail();
377}
378
379
380SM_STEP(AUTH_PAE)
381{
382 if ((sm->portControl == Auto && sm->portMode != sm->portControl) ||
383 sm->initialize || !sm->eap_if->portEnabled)
74bd7dae 384 SM_ENTER_GLOBAL(AUTH_PAE, INITIALIZE);
6fc6879b
JM		 385 else if (sm->portControl == ForceAuthorized &&
386 sm->portMode != sm->portControl &&
387 !(sm->initialize || !sm->eap_if->portEnabled))
74bd7dae 388 SM_ENTER_GLOBAL(AUTH_PAE, FORCE_AUTH);
6fc6879b
JM		 389 else if (sm->portControl == ForceUnauthorized &&
390 sm->portMode != sm->portControl &&
391 !(sm->initialize || !sm->eap_if->portEnabled))
74bd7dae 392 SM_ENTER_GLOBAL(AUTH_PAE, FORCE_UNAUTH);
6fc6879b
JM		 393 else {
394 switch (sm->auth_pae_state) {
395 case AUTH_PAE_INITIALIZE:
396 SM_ENTER(AUTH_PAE, DISCONNECTED);
397 break;
398 case AUTH_PAE_DISCONNECTED:
399 SM_ENTER(AUTH_PAE, RESTART);
400 break;
401 case AUTH_PAE_RESTART:
402 if (!sm->eap_if->eapRestart)
403 SM_ENTER(AUTH_PAE, CONNECTING);
404 break;
405 case AUTH_PAE_HELD:
406 if (sm->quietWhile == 0)
407 SM_ENTER(AUTH_PAE, RESTART);
408 break;
409 case AUTH_PAE_CONNECTING:
410 if (sm->eapolLogoff || sm->reAuthCount > sm->reAuthMax)
411 SM_ENTER(AUTH_PAE, DISCONNECTED);
412 else if ((sm->eap_if->eapReq &&
413 sm->reAuthCount <= sm->reAuthMax) ||
414 sm->eap_if->eapSuccess || sm->eap_if->eapFail)
415 SM_ENTER(AUTH_PAE, AUTHENTICATING);
416 break;
417 case AUTH_PAE_AUTHENTICATED:
418 if (sm->eapolStart || sm->reAuthenticate)
419 SM_ENTER(AUTH_PAE, RESTART);
420 else if (sm->eapolLogoff || !sm->portValid)
421 SM_ENTER(AUTH_PAE, DISCONNECTED);
422 break;
423 case AUTH_PAE_AUTHENTICATING:
424 if (sm->authSuccess && sm->portValid)
425 SM_ENTER(AUTH_PAE, AUTHENTICATED);
426 else if (sm->authFail ||
427 (sm->keyDone && !sm->portValid))
428 SM_ENTER(AUTH_PAE, HELD);
429 else if (sm->eapolStart || sm->eapolLogoff ||
430 sm->authTimeout)
431 SM_ENTER(AUTH_PAE, ABORTING);
432 break;
433 case AUTH_PAE_ABORTING:
434 if (sm->eapolLogoff && !sm->authAbort)
435 SM_ENTER(AUTH_PAE, DISCONNECTED);
436 else if (!sm->eapolLogoff && !sm->authAbort)
437 SM_ENTER(AUTH_PAE, RESTART);
438 break;
439 case AUTH_PAE_FORCE_AUTH:
440 if (sm->eapolStart)
441 SM_ENTER(AUTH_PAE, FORCE_AUTH);
442 break;
443 case AUTH_PAE_FORCE_UNAUTH:
444 if (sm->eapolStart)
445 SM_ENTER(AUTH_PAE, FORCE_UNAUTH);
446 break;
447 }
448 }
449}
450
451
452
453/* Backend Authentication state machine */
454
455SM_STATE(BE_AUTH, INITIALIZE)
456{
457 SM_ENTRY_MA(BE_AUTH, INITIALIZE, be_auth);
458
459 abortAuth();
460 sm->eap_if->eapNoReq = FALSE;
461 sm->authAbort = FALSE;
462}
463
464
465SM_STATE(BE_AUTH, REQUEST)
466{
467 SM_ENTRY_MA(BE_AUTH, REQUEST, be_auth);
468
469 txReq();
470 sm->eap_if->eapReq = FALSE;
471 sm->backendOtherRequestsToSupplicant++;
472
473 /*
474 * Clearing eapolEap here is not specified in IEEE Std 802.1X-2004, but
475 * it looks like this would be logical thing to do there since the old
476 * EAP response would not be valid anymore after the new EAP request
477 * was sent out.
478 *
479 * A race condition has been reported, in which hostapd ended up
480 * sending out EAP-Response/Identity as a response to the first
481 * EAP-Request from the main EAP method. This can be avoided by
482 * clearing eapolEap here.
483 */
484 sm->eapolEap = FALSE;
485}
486
487
488SM_STATE(BE_AUTH, RESPONSE)
489{
490 SM_ENTRY_MA(BE_AUTH, RESPONSE, be_auth);
491
492 sm->authTimeout = FALSE;
493 sm->eapolEap = FALSE;
494 sm->eap_if->eapNoReq = FALSE;
495 sm->aWhile = sm->serverTimeout;
496 sm->eap_if->eapResp = TRUE;
497 /* sendRespToServer(); */
498 sm->backendResponses++;
499}
500
501
502SM_STATE(BE_AUTH, SUCCESS)
503{
504 SM_ENTRY_MA(BE_AUTH, SUCCESS, be_auth);
505
506 txReq();
507 sm->authSuccess = TRUE;
508 sm->keyRun = TRUE;
509}
510
511
512SM_STATE(BE_AUTH, FAIL)
513{
514 SM_ENTRY_MA(BE_AUTH, FAIL, be_auth);
515
516 txReq();
517 sm->authFail = TRUE;
518}
519
520
521SM_STATE(BE_AUTH, TIMEOUT)
522{
523 SM_ENTRY_MA(BE_AUTH, TIMEOUT, be_auth);
524
525 sm->authTimeout = TRUE;
526}
527
528
529SM_STATE(BE_AUTH, IDLE)
530{
531 SM_ENTRY_MA(BE_AUTH, IDLE, be_auth);
532
533 sm->authStart = FALSE;
534}
535
536
537SM_STATE(BE_AUTH, IGNORE)
538{
539 SM_ENTRY_MA(BE_AUTH, IGNORE, be_auth);
540
541 sm->eap_if->eapNoReq = FALSE;
542}
543
544
545SM_STEP(BE_AUTH)
546{
547 if (sm->portControl != Auto || sm->initialize || sm->authAbort) {
74bd7dae 548 SM_ENTER_GLOBAL(BE_AUTH, INITIALIZE);
6fc6879b
JM		 549 return;
550 }
551
552 switch (sm->be_auth_state) {
553 case BE_AUTH_INITIALIZE:
554 SM_ENTER(BE_AUTH, IDLE);
555 break;
556 case BE_AUTH_REQUEST:
557 if (sm->eapolEap)
558 SM_ENTER(BE_AUTH, RESPONSE);
559 else if (sm->eap_if->eapReq)
560 SM_ENTER(BE_AUTH, REQUEST);
561 else if (sm->eap_if->eapTimeout)
562 SM_ENTER(BE_AUTH, TIMEOUT);
563 break;
564 case BE_AUTH_RESPONSE:
565 if (sm->eap_if->eapNoReq)
566 SM_ENTER(BE_AUTH, IGNORE);
567 if (sm->eap_if->eapReq) {
568 sm->backendAccessChallenges++;
569 SM_ENTER(BE_AUTH, REQUEST);
570 } else if (sm->aWhile == 0)
571 SM_ENTER(BE_AUTH, TIMEOUT);
572 else if (sm->eap_if->eapFail) {
573 sm->backendAuthFails++;
574 SM_ENTER(BE_AUTH, FAIL);
575 } else if (sm->eap_if->eapSuccess) {
576 sm->backendAuthSuccesses++;
577 SM_ENTER(BE_AUTH, SUCCESS);
578 }
579 break;
580 case BE_AUTH_SUCCESS:
581 SM_ENTER(BE_AUTH, IDLE);
582 break;
583 case BE_AUTH_FAIL:
584 SM_ENTER(BE_AUTH, IDLE);
585 break;
586 case BE_AUTH_TIMEOUT:
587 SM_ENTER(BE_AUTH, IDLE);
588 break;
589 case BE_AUTH_IDLE:
590 if (sm->eap_if->eapFail && sm->authStart)
591 SM_ENTER(BE_AUTH, FAIL);
592 else if (sm->eap_if->eapReq && sm->authStart)
593 SM_ENTER(BE_AUTH, REQUEST);
594 else if (sm->eap_if->eapSuccess && sm->authStart)
595 SM_ENTER(BE_AUTH, SUCCESS);
596 break;
597 case BE_AUTH_IGNORE:
598 if (sm->eapolEap)
599 SM_ENTER(BE_AUTH, RESPONSE);
600 else if (sm->eap_if->eapReq)
601 SM_ENTER(BE_AUTH, REQUEST);
602 else if (sm->eap_if->eapTimeout)
603 SM_ENTER(BE_AUTH, TIMEOUT);
604 break;
605 }
606}
607
608
609
610/* Reauthentication Timer state machine */
611
612SM_STATE(REAUTH_TIMER, INITIALIZE)
613{
614 SM_ENTRY_MA(REAUTH_TIMER, INITIALIZE, reauth_timer);
615
616 sm->reAuthWhen = sm->reAuthPeriod;
617}
618
619
620SM_STATE(REAUTH_TIMER, REAUTHENTICATE)
621{
622 SM_ENTRY_MA(REAUTH_TIMER, REAUTHENTICATE, reauth_timer);
623
624 sm->reAuthenticate = TRUE;
a2befd37 625 sm->eapol->cb.eapol_event(sm->eapol->conf.ctx, sm->sta,
38294200 626 EAPOL_AUTH_REAUTHENTICATE);
6fc6879b
JM		 627}
628
629
630SM_STEP(REAUTH_TIMER)
631{
632 if (sm->portControl != Auto || sm->initialize ||
633 sm->authPortStatus == Unauthorized || !sm->reAuthEnabled) {
74bd7dae 634 SM_ENTER_GLOBAL(REAUTH_TIMER, INITIALIZE);
6fc6879b
JM		 635 return;
636 }
637
638 switch (sm->reauth_timer_state) {
639 case REAUTH_TIMER_INITIALIZE:
640 if (sm->reAuthWhen == 0)
641 SM_ENTER(REAUTH_TIMER, REAUTHENTICATE);
642 break;
643 case REAUTH_TIMER_REAUTHENTICATE:
644 SM_ENTER(REAUTH_TIMER, INITIALIZE);
645 break;
646 }
647}
648
649
650
651/* Authenticator Key Transmit state machine */
652
653SM_STATE(AUTH_KEY_TX, NO_KEY_TRANSMIT)
654{
655 SM_ENTRY_MA(AUTH_KEY_TX, NO_KEY_TRANSMIT, auth_key_tx);
656}
657
658
659SM_STATE(AUTH_KEY_TX, KEY_TRANSMIT)
660{
661 SM_ENTRY_MA(AUTH_KEY_TX, KEY_TRANSMIT, auth_key_tx);
662
663 txKey();
664 sm->eap_if->eapKeyAvailable = FALSE;
665 sm->keyDone = TRUE;
666}
667
668
669SM_STEP(AUTH_KEY_TX)
670{
671 if (sm->initialize || sm->portControl != Auto) {
74bd7dae 672 SM_ENTER_GLOBAL(AUTH_KEY_TX, NO_KEY_TRANSMIT);
6fc6879b
JM		 673 return;
674 }
675
676 switch (sm->auth_key_tx_state) {
677 case AUTH_KEY_TX_NO_KEY_TRANSMIT:
678 if (sm->keyTxEnabled && sm->eap_if->eapKeyAvailable &&
5ed1c08f 679 sm->keyRun && !(sm->flags & EAPOL_SM_USES_WPA))
6fc6879b
JM		 680 SM_ENTER(AUTH_KEY_TX, KEY_TRANSMIT);
681 break;
682 case AUTH_KEY_TX_KEY_TRANSMIT:
683 if (!sm->keyTxEnabled || !sm->keyRun)
684 SM_ENTER(AUTH_KEY_TX, NO_KEY_TRANSMIT);
685 else if (sm->eap_if->eapKeyAvailable)
686 SM_ENTER(AUTH_KEY_TX, KEY_TRANSMIT);
687 break;
688 }
689}
690
691
692
693/* Key Receive state machine */
694
695SM_STATE(KEY_RX, NO_KEY_RECEIVE)
696{
697 SM_ENTRY_MA(KEY_RX, NO_KEY_RECEIVE, key_rx);
698}
699
700
701SM_STATE(KEY_RX, KEY_RECEIVE)
702{
703 SM_ENTRY_MA(KEY_RX, KEY_RECEIVE, key_rx);
704
705 processKey();
706 sm->rxKey = FALSE;
707}
708
709
710SM_STEP(KEY_RX)
711{
712 if (sm->initialize || !sm->eap_if->portEnabled) {
74bd7dae 713 SM_ENTER_GLOBAL(KEY_RX, NO_KEY_RECEIVE);
6fc6879b
JM		 714 return;
715 }
716
717 switch (sm->key_rx_state) {
718 case KEY_RX_NO_KEY_RECEIVE:
719 if (sm->rxKey)
720 SM_ENTER(KEY_RX, KEY_RECEIVE);
721 break;
722 case KEY_RX_KEY_RECEIVE:
723 if (sm->rxKey)
724 SM_ENTER(KEY_RX, KEY_RECEIVE);
725 break;
726 }
727}
728
729
730
731/* Controlled Directions state machine */
732
733SM_STATE(CTRL_DIR, FORCE_BOTH)
734{
735 SM_ENTRY_MA(CTRL_DIR, FORCE_BOTH, ctrl_dir);
736 sm->operControlledDirections = Both;
737}
738
739
740SM_STATE(CTRL_DIR, IN_OR_BOTH)
741{
742 SM_ENTRY_MA(CTRL_DIR, IN_OR_BOTH, ctrl_dir);
743 sm->operControlledDirections = sm->adminControlledDirections;
744}
745
746
747SM_STEP(CTRL_DIR)
748{
749 if (sm->initialize) {
74bd7dae 750 SM_ENTER_GLOBAL(CTRL_DIR, IN_OR_BOTH);
6fc6879b
JM		 751 return;
752 }
753
754 switch (sm->ctrl_dir_state) {
755 case CTRL_DIR_FORCE_BOTH:
756 if (sm->eap_if->portEnabled && sm->operEdge)
757 SM_ENTER(CTRL_DIR, IN_OR_BOTH);
758 break;
759 case CTRL_DIR_IN_OR_BOTH:
760 if (sm->operControlledDirections !=
761 sm->adminControlledDirections)
762 SM_ENTER(CTRL_DIR, IN_OR_BOTH);
763 if (!sm->eap_if->portEnabled || !sm->operEdge)
764 SM_ENTER(CTRL_DIR, FORCE_BOTH);
765 break;
766 }
767}
768
769
770
771struct eapol_state_machine *
772eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
f684e608 773 int flags, const struct wpabuf *assoc_wps_ie,
1a819aa7
MB		 774 const struct wpabuf *assoc_p2p_ie, void *sta_ctx,
775 const char *identity, const char *radius_cui)
6fc6879b
JM		 776{
777 struct eapol_state_machine *sm;
6fc6879b
JM		 778 struct eap_config eap_conf;
779
780 if (eapol == NULL)
781 return NULL;
6fc6879b
JM		 782
783 sm = os_zalloc(sizeof(*sm));
784 if (sm == NULL) {
785 wpa_printf(MSG_DEBUG, "IEEE 802.1X state machine allocation "
786 "failed");
787 return NULL;
788 }
789 sm->radius_identifier = -1;
790 os_memcpy(sm->addr, addr, ETH_ALEN);
5ed1c08f 791 sm->flags = flags;
6fc6879b 792
6fc6879b 793 sm->eapol = eapol;
d79b7792 794 sm->sta = sta_ctx;
6fc6879b
JM		 795
796 /* Set default values for state machine constants */
797 sm->auth_pae_state = AUTH_PAE_INITIALIZE;
798 sm->quietPeriod = AUTH_PAE_DEFAULT_quietPeriod;
799 sm->reAuthMax = AUTH_PAE_DEFAULT_reAuthMax;
800
801 sm->be_auth_state = BE_AUTH_INITIALIZE;
802 sm->serverTimeout = BE_AUTH_DEFAULT_serverTimeout;
803
804 sm->reauth_timer_state = REAUTH_TIMER_INITIALIZE;
805 sm->reAuthPeriod = eapol->conf.eap_reauth_period;
806 sm->reAuthEnabled = eapol->conf.eap_reauth_period > 0 ? TRUE : FALSE;
807
808 sm->auth_key_tx_state = AUTH_KEY_TX_NO_KEY_TRANSMIT;
809
810 sm->key_rx_state = KEY_RX_NO_KEY_RECEIVE;
811
812 sm->ctrl_dir_state = CTRL_DIR_IN_OR_BOTH;
813
814 sm->portControl = Auto;
815
816 if (!eapol->conf.wpa &&
f55802e8 817 (eapol->default_wep_key || eapol->conf.individual_wep_key_len > 0))
6fc6879b
JM		 818 sm->keyTxEnabled = TRUE;
819 else
820 sm->keyTxEnabled = FALSE;
821 if (eapol->conf.wpa)
822 sm->portValid = FALSE;
823 else
824 sm->portValid = TRUE;
825
826 os_memset(&eap_conf, 0, sizeof(eap_conf));
827 eap_conf.eap_server = eapol->conf.eap_server;
828 eap_conf.ssl_ctx = eapol->conf.ssl_ctx;
bb437f28 829 eap_conf.msg_ctx = eapol->conf.msg_ctx;
6fc6879b
JM		 830 eap_conf.eap_sim_db_priv = eapol->conf.eap_sim_db_priv;
831 eap_conf.pac_opaque_encr_key = eapol->conf.pac_opaque_encr_key;
832 eap_conf.eap_fast_a_id = eapol->conf.eap_fast_a_id;
2d867244
JM		 833 eap_conf.eap_fast_a_id_len = eapol->conf.eap_fast_a_id_len;
834 eap_conf.eap_fast_a_id_info = eapol->conf.eap_fast_a_id_info;
378eae5e 835 eap_conf.eap_fast_prov = eapol->conf.eap_fast_prov;
a11c90a6
JM		 836 eap_conf.pac_key_lifetime = eapol->conf.pac_key_lifetime;
837 eap_conf.pac_key_refresh_time = eapol->conf.pac_key_refresh_time;
6fc6879b 838 eap_conf.eap_sim_aka_result_ind = eapol->conf.eap_sim_aka_result_ind;
c3e258ae 839 eap_conf.tnc = eapol->conf.tnc;
ad08c363 840 eap_conf.wps = eapol->conf.wps;
d79b7792 841 eap_conf.assoc_wps_ie = assoc_wps_ie;
f684e608 842 eap_conf.assoc_p2p_ie = assoc_p2p_ie;
2678509d 843 eap_conf.peer_addr = addr;
7f6ec672 844 eap_conf.fragment_size = eapol->conf.fragment_size;
df684d82 845 eap_conf.pwd_group = eapol->conf.pwd_group;
fa516558 846 eap_conf.pbc_in_m1 = eapol->conf.pbc_in_m1;
67fe933d
JM		 847 eap_conf.server_id = eapol->conf.server_id;
848 eap_conf.server_id_len = eapol->conf.server_id_len;
d3bddd8b 849 eap_conf.erp = eapol->conf.erp;
681e199d 850 eap_conf.tls_session_lifetime = eapol->conf.tls_session_lifetime;
6fc6879b
JM		 851 sm->eap = eap_server_sm_init(sm, &eapol_cb, &eap_conf);
852 if (sm->eap == NULL) {
853 eapol_auth_free(sm);
854 return NULL;
855 }
856 sm->eap_if = eap_get_interface(sm->eap);
857
858 eapol_auth_initialize(sm);
859
1a819aa7
MB		 860 if (identity) {
861 sm->identity = (u8 *) os_strdup(identity);
862 if (sm->identity)
863 sm->identity_len = os_strlen(identity);
864 }
865 if (radius_cui)
866 sm->radius_cui = wpabuf_alloc_copy(radius_cui,
867 os_strlen(radius_cui));
868
1fc63fe2
JM		 869#ifndef CONFIG_NO_RADIUS
870 if (radius_gen_session_id((u8 *) &sm->acct_multi_session_id,
871 sizeof(sm->acct_multi_session_id)) < 0) {
d72a0053
NL		 872 eapol_auth_free(sm);
873 return NULL;
874 }
1fc63fe2 875#endif /* CONFIG_NO_RADIUS */
fcc306e3 876
6fc6879b
JM		 877 return sm;
878}
879
880
881void eapol_auth_free(struct eapol_state_machine *sm)
882{
883 if (sm == NULL)
884 return;
885
886 eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
887 eloop_cancel_timeout(eapol_sm_step_cb, sm, NULL);
888 if (sm->eap)
889 eap_server_sm_deinit(sm->eap);
d689317d
JM		 890
891 wpabuf_free(sm->radius_cui);
892 os_free(sm->identity);
6fc6879b
JM		 893 os_free(sm);
894}
895
896
897static int eapol_sm_sta_entry_alive(struct eapol_authenticator *eapol,
898 const u8 *addr)
899{
a2befd37 900 return eapol->cb.sta_entry_alive(eapol->conf.ctx, addr);
6fc6879b
JM		 901}
902
903
904static void eapol_sm_step_run(struct eapol_state_machine *sm)
905{
906 struct eapol_authenticator *eapol = sm->eapol;
907 u8 addr[ETH_ALEN];
908 unsigned int prev_auth_pae, prev_be_auth, prev_reauth_timer,
909 prev_auth_key_tx, prev_key_rx, prev_ctrl_dir;
910 int max_steps = 100;
911
912 os_memcpy(addr, sm->addr, ETH_ALEN);
913
914 /*
915 * Allow EAPOL state machines to run as long as there are state
916 * changes, but exit and return here through event loop if more than
917 * 100 steps is needed as a precaution against infinite loops inside
918 * eloop callback.
919 */
920restart:
921 prev_auth_pae = sm->auth_pae_state;
922 prev_be_auth = sm->be_auth_state;
923 prev_reauth_timer = sm->reauth_timer_state;
924 prev_auth_key_tx = sm->auth_key_tx_state;
925 prev_key_rx = sm->key_rx_state;
926 prev_ctrl_dir = sm->ctrl_dir_state;
927
928 SM_STEP_RUN(AUTH_PAE);
929 if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
930 SM_STEP_RUN(BE_AUTH);
931 if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
932 SM_STEP_RUN(REAUTH_TIMER);
933 if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
934 SM_STEP_RUN(AUTH_KEY_TX);
935 if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
936 SM_STEP_RUN(KEY_RX);
937 if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
938 SM_STEP_RUN(CTRL_DIR);
939
940 if (prev_auth_pae != sm->auth_pae_state ||
941 prev_be_auth != sm->be_auth_state ||
942 prev_reauth_timer != sm->reauth_timer_state ||
943 prev_auth_key_tx != sm->auth_key_tx_state ||
944 prev_key_rx != sm->key_rx_state ||
945 prev_ctrl_dir != sm->ctrl_dir_state) {
946 if (--max_steps > 0)
947 goto restart;
948 /* Re-run from eloop timeout */
949 eapol_auth_step(sm);
950 return;
951 }
952
953 if (eapol_sm_sta_entry_alive(eapol, addr) && sm->eap) {
954 if (eap_server_sm_step(sm->eap)) {
955 if (--max_steps > 0)
956 goto restart;
957 /* Re-run from eloop timeout */
958 eapol_auth_step(sm);
959 return;
960 }
961
962 /* TODO: find a better location for this */
963 if (sm->eap_if->aaaEapResp) {
964 sm->eap_if->aaaEapResp = FALSE;
965 if (sm->eap_if->aaaEapRespData == NULL) {
966 wpa_printf(MSG_DEBUG, "EAPOL: aaaEapResp set, "
967 "but no aaaEapRespData available");
968 return;
969 }
970 sm->eapol->cb.aaa_send(
a2befd37 971 sm->eapol->conf.ctx, sm->sta,
6fc6879b
JM		 972 wpabuf_head(sm->eap_if->aaaEapRespData),
973 wpabuf_len(sm->eap_if->aaaEapRespData));
974 }
975 }
976
977 if (eapol_sm_sta_entry_alive(eapol, addr))
a2befd37 978 sm->eapol->cb.eapol_event(sm->eapol->conf.ctx, sm->sta,
38294200 979 EAPOL_AUTH_SM_CHANGE);
6fc6879b
JM		 980}
981
982
983static void eapol_sm_step_cb(void *eloop_ctx, void *timeout_ctx)
984{
985 struct eapol_state_machine *sm = eloop_ctx;
986 eapol_sm_step_run(sm);
987}
988
989
1c6e69cc
JM		 990/**
991 * eapol_auth_step - Advance EAPOL state machines
992 * @sm: EAPOL state machine
993 *
994 * This function is called to advance EAPOL state machines after any change
995 * that could affect their state.
996 */
6fc6879b
JM		 997void eapol_auth_step(struct eapol_state_machine *sm)
998{
999 /*
1000 * Run eapol_sm_step_run from a registered timeout to make sure that
1001 * other possible timeouts/events are processed and to avoid long
1002 * function call chains.
1003 */
1004
1005 eloop_register_timeout(0, 0, eapol_sm_step_cb, sm, NULL);
1006}
1007
1008
ee58e871 1009static void eapol_auth_initialize(struct eapol_state_machine *sm)
6fc6879b
JM		 1010{
1011 sm->initializing = TRUE;
1012 /* Initialize the state machines by asserting initialize and then
1013 * deasserting it after one step */
1014 sm->initialize = TRUE;
1015 eapol_sm_step_run(sm);
1016 sm->initialize = FALSE;
1017 eapol_sm_step_run(sm);
1018 sm->initializing = FALSE;
1019
1020 /* Start one second tick for port timers state machine */
1021 eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
1022 eloop_register_timeout(1, 0, eapol_port_timers_tick, NULL, sm);
1023}
1024
1025
6fc6879b
JM		 1026static int eapol_sm_get_eap_user(void *ctx, const u8 *identity,
1027 size_t identity_len, int phase2,
1028 struct eap_user *user)
1029{
1030 struct eapol_state_machine *sm = ctx;
8d2a9921
JM		 1031 int ret;
1032
1033 ret = sm->eapol->cb.get_eap_user(sm->eapol->conf.ctx, identity,
1034 identity_len, phase2, user);
1035 if (user->remediation)
1036 sm->remediation = 1;
1037 return ret;
6fc6879b
JM		 1038}
1039
1040
1041static const char * eapol_sm_get_eap_req_id_text(void *ctx, size_t *len)
1042{
1043 struct eapol_state_machine *sm = ctx;
1044 *len = sm->eapol->conf.eap_req_id_text_len;
1045 return sm->eapol->conf.eap_req_id_text;
1046}
1047
1048
2a5156a6
JM		 1049static int eapol_sm_get_erp_send_reauth_start(void *ctx)
1050{
1051 struct eapol_state_machine *sm = ctx;
1052 return sm->eapol->conf.erp_send_reauth_start;
1053}
1054
1055
1056static const char * eapol_sm_get_erp_domain(void *ctx)
1057{
1058 struct eapol_state_machine *sm = ctx;
1059 return sm->eapol->conf.erp_domain;
1060}
1061
1062
d3bddd8b
JM		 1063static struct eap_server_erp_key * eapol_sm_erp_get_key(void *ctx,
1064 const char *keyname)
1065{
1066 struct eapol_state_machine *sm = ctx;
1067 return sm->eapol->cb.erp_get_key(sm->eapol->conf.ctx, keyname);
1068}
1069
1070
1071static int eapol_sm_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
1072{
1073 struct eapol_state_machine *sm = ctx;
1074 return sm->eapol->cb.erp_add_key(sm->eapol->conf.ctx, erp);
1075}
1076
1077
8b423edb 1078static const struct eapol_callbacks eapol_cb =
6fc6879b 1079{
6fa2ec2d 1080 eapol_sm_get_eap_user,
01f7fe10 1081 eapol_sm_get_eap_req_id_text,
2a5156a6
JM		 1082 NULL,
1083 eapol_sm_get_erp_send_reauth_start,
1084 eapol_sm_get_erp_domain,
d3bddd8b
JM		 1085 eapol_sm_erp_get_key,
1086 eapol_sm_erp_add_key,
6fc6879b
JM		 1087};
1088
1089
1090int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx)
1091{
de6e463f 1092 if (sm == NULL || ctx == NULL || ctx != sm->eap)
6fc6879b
JM		 1093 return -1;
1094
1095 eap_sm_pending_cb(sm->eap);
1096 eapol_auth_step(sm);
1097
1098 return 0;
1099}
1100
1101
cfb5c08f
JM		 1102void eapol_auth_reauthenticate(struct eapol_state_machine *sm)
1103{
1104 wpa_printf(MSG_DEBUG, "EAPOL: External reauthentication trigger for "
1105 MACSTR, MAC2STR(sm->addr));
1106 sm->reAuthenticate = TRUE;
1107 eapol_auth_step(sm);
1108}
1109
1110
3722c0f4
JM		 1111int eapol_auth_set_conf(struct eapol_state_machine *sm, const char *param,
1112 const char *value)
1113{
1114 wpa_printf(MSG_DEBUG, "EAPOL: External configuration operation for "
1115 MACSTR " - param=%s value=%s",
1116 MAC2STR(sm->addr), param, value);
1117
1118 if (os_strcasecmp(param, "AdminControlledDirections") == 0) {
1119 if (os_strcmp(value, "Both") == 0)
1120 sm->adminControlledDirections = Both;
1121 else if (os_strcmp(value, "In") == 0)
1122 sm->adminControlledDirections = In;
1123 else
1124 return -1;
1125 eapol_auth_step(sm);
1126 return 0;
1127 }
1128
1129 if (os_strcasecmp(param, "AdminControlledPortControl") == 0) {
1130 if (os_strcmp(value, "ForceAuthorized") == 0)
1131 sm->portControl = ForceAuthorized;
1132 else if (os_strcmp(value, "ForceUnauthorized") == 0)
1133 sm->portControl = ForceUnauthorized;
1134 else if (os_strcmp(value, "Auto") == 0)
1135 sm->portControl = Auto;
1136 else
1137 return -1;
1138 eapol_auth_step(sm);
1139 return 0;
1140 }
1141
1142 if (os_strcasecmp(param, "quietPeriod") == 0) {
1143 sm->quietPeriod = atoi(value);
1144 return 0;
1145 }
1146
1147 if (os_strcasecmp(param, "serverTimeout") == 0) {
1148 sm->serverTimeout = atoi(value);
1149 return 0;
1150 }
1151
1152 if (os_strcasecmp(param, "reAuthPeriod") == 0) {
1153 sm->reAuthPeriod = atoi(value);
1154 return 0;
1155 }
1156
1157 if (os_strcasecmp(param, "reAuthEnabled") == 0) {
1158 if (os_strcmp(value, "TRUE") == 0)
1159 sm->reAuthEnabled = TRUE;
1160 else if (os_strcmp(value, "FALSE") == 0)
1161 sm->reAuthEnabled = FALSE;
1162 else
1163 return -1;
1164 eapol_auth_step(sm);
1165 return 0;
1166 }
1167
1168 if (os_strcasecmp(param, "KeyTransmissionEnabled") == 0) {
1169 if (os_strcmp(value, "TRUE") == 0)
1170 sm->keyTxEnabled = TRUE;
1171 else if (os_strcmp(value, "FALSE") == 0)
1172 sm->keyTxEnabled = FALSE;
1173 else
1174 return -1;
1175 eapol_auth_step(sm);
1176 return 0;
1177 }
1178
1179 return -1;
1180}
1181
1182
6fc6879b
JM		 1183static int eapol_auth_conf_clone(struct eapol_auth_config *dst,
1184 struct eapol_auth_config *src)
1185{
a2befd37 1186 dst->ctx = src->ctx;
6fc6879b
JM		 1187 dst->eap_reauth_period = src->eap_reauth_period;
1188 dst->wpa = src->wpa;
1189 dst->individual_wep_key_len = src->individual_wep_key_len;
1190 dst->eap_server = src->eap_server;
1191 dst->ssl_ctx = src->ssl_ctx;
bb437f28 1192 dst->msg_ctx = src->msg_ctx;
6fc6879b
JM		 1193 dst->eap_sim_db_priv = src->eap_sim_db_priv;
1194 os_free(dst->eap_req_id_text);
df684d82 1195 dst->pwd_group = src->pwd_group;
fa516558 1196 dst->pbc_in_m1 = src->pbc_in_m1;
67fe933d
JM		 1197 dst->server_id = src->server_id;
1198 dst->server_id_len = src->server_id_len;
6fc6879b 1199 if (src->eap_req_id_text) {
a1f11e34
JB		 1200 dst->eap_req_id_text = os_memdup(src->eap_req_id_text,
1201 src->eap_req_id_text_len);
6fc6879b
JM		 1202 if (dst->eap_req_id_text == NULL)
1203 return -1;
6fc6879b
JM		 1204 dst->eap_req_id_text_len = src->eap_req_id_text_len;
1205 } else {
1206 dst->eap_req_id_text = NULL;
1207 dst->eap_req_id_text_len = 0;
1208 }
1209 if (src->pac_opaque_encr_key) {
a1f11e34
JB		 1210 dst->pac_opaque_encr_key = os_memdup(src->pac_opaque_encr_key,
1211 16);
2a5156a6
JM		 1212 if (dst->pac_opaque_encr_key == NULL)
1213 goto fail;
6fc6879b
JM		 1214 } else
1215 dst->pac_opaque_encr_key = NULL;
2d867244 1216 if (src->eap_fast_a_id) {
a1f11e34
JB		 1217 dst->eap_fast_a_id = os_memdup(src->eap_fast_a_id,
1218 src->eap_fast_a_id_len);
2a5156a6
JM		 1219 if (dst->eap_fast_a_id == NULL)
1220 goto fail;
2d867244
JM		 1221 dst->eap_fast_a_id_len = src->eap_fast_a_id_len;
1222 } else
6fc6879b 1223 dst->eap_fast_a_id = NULL;
2d867244
JM		 1224 if (src->eap_fast_a_id_info) {
1225 dst->eap_fast_a_id_info = os_strdup(src->eap_fast_a_id_info);
2a5156a6
JM		 1226 if (dst->eap_fast_a_id_info == NULL)
1227 goto fail;
2d867244
JM		 1228 } else
1229 dst->eap_fast_a_id_info = NULL;
378eae5e 1230 dst->eap_fast_prov = src->eap_fast_prov;
a11c90a6
JM		 1231 dst->pac_key_lifetime = src->pac_key_lifetime;
1232 dst->pac_key_refresh_time = src->pac_key_refresh_time;
6fc6879b 1233 dst->eap_sim_aka_result_ind = src->eap_sim_aka_result_ind;
c3e258ae 1234 dst->tnc = src->tnc;
ad08c363 1235 dst->wps = src->wps;
7f6ec672 1236 dst->fragment_size = src->fragment_size;
2a5156a6
JM		 1237
1238 os_free(dst->erp_domain);
1239 if (src->erp_domain) {
1240 dst->erp_domain = os_strdup(src->erp_domain);
1241 if (dst->erp_domain == NULL)
1242 goto fail;
1243 } else {
1244 dst->erp_domain = NULL;
1245 }
1246 dst->erp_send_reauth_start = src->erp_send_reauth_start;
d3bddd8b 1247 dst->erp = src->erp;
681e199d 1248 dst->tls_session_lifetime = src->tls_session_lifetime;
2a5156a6 1249
6fc6879b 1250 return 0;
2a5156a6
JM		 1251
1252fail:
1253 eapol_auth_conf_free(dst);
1254 return -1;
6fc6879b
JM		 1255}
1256
1257
1258static void eapol_auth_conf_free(struct eapol_auth_config *conf)
1259{
1260 os_free(conf->eap_req_id_text);
1261 conf->eap_req_id_text = NULL;
1262 os_free(conf->pac_opaque_encr_key);
1263 conf->pac_opaque_encr_key = NULL;
1264 os_free(conf->eap_fast_a_id);
1265 conf->eap_fast_a_id = NULL;
2d867244
JM		 1266 os_free(conf->eap_fast_a_id_info);
1267 conf->eap_fast_a_id_info = NULL;
2a5156a6
JM		 1268 os_free(conf->erp_domain);
1269 conf->erp_domain = NULL;
6fc6879b
JM		 1270}
1271
1272
1273struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
1274 struct eapol_auth_cb *cb)
1275{
1276 struct eapol_authenticator *eapol;
1277
1278 eapol = os_zalloc(sizeof(*eapol));
1279 if (eapol == NULL)
1280 return NULL;
1281
1282 if (eapol_auth_conf_clone(&eapol->conf, conf) < 0) {
1283 os_free(eapol);
1284 return NULL;
1285 }
1286
f55802e8
JM		 1287 if (conf->individual_wep_key_len > 0) {
1288 /* use key0 in individual key and key1 in broadcast key */
1289 eapol->default_wep_key_idx = 1;
1290 }
1291
6fc6879b
JM		 1292 eapol->cb.eapol_send = cb->eapol_send;
1293 eapol->cb.aaa_send = cb->aaa_send;
1294 eapol->cb.finished = cb->finished;
1295 eapol->cb.get_eap_user = cb->get_eap_user;
1296 eapol->cb.sta_entry_alive = cb->sta_entry_alive;
1297 eapol->cb.logger = cb->logger;
1298 eapol->cb.set_port_authorized = cb->set_port_authorized;
1299 eapol->cb.abort_auth = cb->abort_auth;
1300 eapol->cb.tx_key = cb->tx_key;
a2befd37 1301 eapol->cb.eapol_event = cb->eapol_event;
d3bddd8b
JM		 1302 eapol->cb.erp_get_key = cb->erp_get_key;
1303 eapol->cb.erp_add_key = cb->erp_add_key;
6fc6879b
JM		 1304
1305 return eapol;
1306}
1307
1308
1309void eapol_auth_deinit(struct eapol_authenticator *eapol)
1310{
1311 if (eapol == NULL)
1312 return;
1313
1314 eapol_auth_conf_free(&eapol->conf);
f55802e8 1315 os_free(eapol->default_wep_key);
6fc6879b
JM		 1316 os_free(eapol);
1317}
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