Line data Source code
1 : /*
2 : * IEEE 802.1X-2004 Authenticator - EAPOL state machine
3 : * Copyright (c) 2002-2014, 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 : static void eapol_auth_conf_free(struct eapol_auth_config *conf);
47 :
48 :
49 7877 : static void eapol_auth_logger(struct eapol_authenticator *eapol,
50 : const u8 *addr, eapol_logger_level level,
51 : const char *txt)
52 : {
53 7877 : if (eapol->cb.logger == NULL)
54 7877 : return;
55 7877 : eapol->cb.logger(eapol->conf.ctx, addr, level, txt);
56 : }
57 :
58 :
59 7880 : static void eapol_auth_vlogger(struct eapol_authenticator *eapol,
60 : const u8 *addr, eapol_logger_level level,
61 : const char *fmt, ...)
62 : {
63 : char *format;
64 : int maxlen;
65 : va_list ap;
66 :
67 7880 : if (eapol->cb.logger == NULL)
68 5 : return;
69 :
70 7880 : maxlen = os_strlen(fmt) + 100;
71 7880 : format = os_malloc(maxlen);
72 7880 : if (!format)
73 5 : return;
74 :
75 7875 : va_start(ap, fmt);
76 7875 : vsnprintf(format, maxlen, fmt, ap);
77 7875 : va_end(ap);
78 :
79 7875 : eapol_auth_logger(eapol, addr, level, format);
80 :
81 7875 : os_free(format);
82 : }
83 :
84 :
85 0 : static void eapol_auth_tx_canned_eap(struct eapol_state_machine *sm,
86 : int success)
87 : {
88 : struct eap_hdr eap;
89 :
90 0 : os_memset(&eap, 0, sizeof(eap));
91 :
92 0 : eap.code = success ? EAP_CODE_SUCCESS : EAP_CODE_FAILURE;
93 0 : eap.identifier = ++sm->last_eap_id;
94 0 : eap.length = host_to_be16(sizeof(eap));
95 :
96 0 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_DEBUG,
97 : "Sending canned EAP packet %s (identifier %d)",
98 0 : success ? "SUCCESS" : "FAILURE", eap.identifier);
99 0 : sm->eapol->cb.eapol_send(sm->eapol->conf.ctx, sm->sta,
100 : IEEE802_1X_TYPE_EAP_PACKET,
101 : (u8 *) &eap, sizeof(eap));
102 0 : sm->dot1xAuthEapolFramesTx++;
103 0 : }
104 :
105 :
106 6564 : static void eapol_auth_tx_req(struct eapol_state_machine *sm)
107 : {
108 13126 : if (sm->eap_if->eapReqData == NULL ||
109 6562 : wpabuf_len(sm->eap_if->eapReqData) < sizeof(struct eap_hdr)) {
110 2 : 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 2 : return;
115 : }
116 :
117 6562 : if (sm->flags & EAPOL_SM_WAIT_START) {
118 12 : wpa_printf(MSG_DEBUG, "EAPOL: Drop EAPOL TX to " MACSTR
119 : " while waiting for EAPOL-Start",
120 12 : MAC2STR(sm->addr));
121 2 : return;
122 : }
123 :
124 6560 : sm->last_eap_id = eap_get_id(sm->eap_if->eapReqData);
125 6560 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_DEBUG,
126 : "Sending EAP Packet (identifier %d)",
127 6560 : sm->last_eap_id);
128 19680 : sm->eapol->cb.eapol_send(sm->eapol->conf.ctx, sm->sta,
129 : IEEE802_1X_TYPE_EAP_PACKET,
130 6560 : wpabuf_head(sm->eap_if->eapReqData),
131 6560 : wpabuf_len(sm->eap_if->eapReqData));
132 6560 : sm->dot1xAuthEapolFramesTx++;
133 6560 : if (eap_get_type(sm->eap_if->eapReqData) == EAP_TYPE_IDENTITY)
134 1321 : sm->dot1xAuthEapolReqIdFramesTx++;
135 : else
136 5239 : sm->dot1xAuthEapolReqFramesTx++;
137 : }
138 :
139 :
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 : */
148 312 : static void eapol_port_timers_tick(void *eloop_ctx, void *timeout_ctx)
149 : {
150 312 : struct eapol_state_machine *state = timeout_ctx;
151 :
152 312 : if (state->aWhile > 0) {
153 287 : state->aWhile--;
154 287 : if (state->aWhile == 0) {
155 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
156 : " - aWhile --> 0",
157 0 : MAC2STR(state->addr));
158 : }
159 : }
160 :
161 312 : if (state->quietWhile > 0) {
162 25 : state->quietWhile--;
163 25 : if (state->quietWhile == 0) {
164 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
165 : " - quietWhile --> 0",
166 0 : MAC2STR(state->addr));
167 : }
168 : }
169 :
170 312 : if (state->reAuthWhen > 0) {
171 312 : state->reAuthWhen--;
172 312 : if (state->reAuthWhen == 0) {
173 6 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
174 : " - reAuthWhen --> 0",
175 6 : MAC2STR(state->addr));
176 : }
177 : }
178 :
179 312 : if (state->eap_if->retransWhile > 0) {
180 236 : state->eap_if->retransWhile--;
181 236 : if (state->eap_if->retransWhile == 0) {
182 288 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
183 : " - (EAP) retransWhile --> 0",
184 288 : MAC2STR(state->addr));
185 : }
186 : }
187 :
188 312 : eapol_sm_step_run(state);
189 :
190 312 : eloop_register_timeout(1, 0, eapol_port_timers_tick, eloop_ctx, state);
191 312 : }
192 :
193 :
194 :
195 : /* Authenticator PAE state machine */
196 :
197 5577 : SM_STATE(AUTH_PAE, INITIALIZE)
198 : {
199 5577 : SM_ENTRY_MA(AUTH_PAE, INITIALIZE, auth_pae);
200 5577 : sm->portMode = Auto;
201 5577 : }
202 :
203 :
204 1239 : SM_STATE(AUTH_PAE, DISCONNECTED)
205 : {
206 1239 : int from_initialize = sm->auth_pae_state == AUTH_PAE_INITIALIZE;
207 :
208 1239 : if (sm->eapolLogoff) {
209 2 : if (sm->auth_pae_state == AUTH_PAE_CONNECTING)
210 0 : sm->authEapLogoffsWhileConnecting++;
211 2 : else if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATED)
212 2 : sm->authAuthEapLogoffWhileAuthenticated++;
213 : }
214 :
215 1239 : SM_ENTRY_MA(AUTH_PAE, DISCONNECTED, auth_pae);
216 :
217 1239 : sm->authPortStatus = Unauthorized;
218 1239 : setPortUnauthorized();
219 1239 : sm->reAuthCount = 0;
220 1239 : sm->eapolLogoff = FALSE;
221 1239 : if (!from_initialize) {
222 4 : sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 0,
223 2 : sm->flags & EAPOL_SM_PREAUTH,
224 : sm->remediation);
225 : }
226 1239 : }
227 :
228 :
229 1321 : SM_STATE(AUTH_PAE, RESTART)
230 : {
231 1321 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATED) {
232 61 : if (sm->reAuthenticate)
233 1 : sm->authAuthReauthsWhileAuthenticated++;
234 61 : if (sm->eapolStart)
235 60 : sm->authAuthEapStartsWhileAuthenticated++;
236 61 : if (sm->eapolLogoff)
237 0 : sm->authAuthEapLogoffWhileAuthenticated++;
238 : }
239 :
240 1321 : SM_ENTRY_MA(AUTH_PAE, RESTART, auth_pae);
241 :
242 1321 : sm->eap_if->eapRestart = TRUE;
243 1321 : }
244 :
245 :
246 1321 : SM_STATE(AUTH_PAE, CONNECTING)
247 : {
248 1321 : if (sm->auth_pae_state != AUTH_PAE_CONNECTING)
249 1321 : sm->authEntersConnecting++;
250 :
251 1321 : SM_ENTRY_MA(AUTH_PAE, CONNECTING, auth_pae);
252 :
253 1321 : sm->reAuthenticate = FALSE;
254 1321 : sm->reAuthCount++;
255 1321 : }
256 :
257 :
258 383 : SM_STATE(AUTH_PAE, HELD)
259 : {
260 383 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING && sm->authFail)
261 383 : sm->authAuthFailWhileAuthenticating++;
262 :
263 383 : SM_ENTRY_MA(AUTH_PAE, HELD, auth_pae);
264 :
265 383 : sm->authPortStatus = Unauthorized;
266 383 : setPortUnauthorized();
267 383 : sm->quietWhile = sm->quietPeriod;
268 383 : sm->eapolLogoff = FALSE;
269 :
270 766 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_WARNING,
271 : "authentication failed - EAP type: %d (%s)",
272 383 : sm->eap_type_authsrv,
273 383 : eap_server_get_name(0, sm->eap_type_authsrv));
274 383 : if (sm->eap_type_authsrv != sm->eap_type_supp) {
275 596 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_INFO,
276 : "Supplicant used different EAP type: "
277 298 : "%d (%s)", sm->eap_type_supp,
278 298 : eap_server_get_name(0, sm->eap_type_supp));
279 : }
280 766 : sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 0,
281 383 : sm->flags & EAPOL_SM_PREAUTH, sm->remediation);
282 383 : }
283 :
284 :
285 639 : SM_STATE(AUTH_PAE, AUTHENTICATED)
286 : {
287 639 : char *extra = "";
288 :
289 639 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING && sm->authSuccess)
290 639 : sm->authAuthSuccessesWhileAuthenticating++;
291 :
292 639 : SM_ENTRY_MA(AUTH_PAE, AUTHENTICATED, auth_pae);
293 :
294 639 : sm->authPortStatus = Authorized;
295 639 : setPortAuthorized();
296 639 : sm->reAuthCount = 0;
297 639 : if (sm->flags & EAPOL_SM_PREAUTH)
298 2 : extra = " (pre-authentication)";
299 637 : else if (sm->flags & EAPOL_SM_FROM_PMKSA_CACHE)
300 30 : extra = " (PMKSA cache)";
301 1278 : eapol_auth_vlogger(sm->eapol, sm->addr, EAPOL_LOGGER_INFO,
302 : "authenticated - EAP type: %d (%s)%s",
303 639 : sm->eap_type_authsrv,
304 639 : eap_server_get_name(0, sm->eap_type_authsrv),
305 : extra);
306 1278 : sm->eapol->cb.finished(sm->eapol->conf.ctx, sm->sta, 1,
307 639 : sm->flags & EAPOL_SM_PREAUTH, sm->remediation);
308 639 : }
309 :
310 :
311 1319 : SM_STATE(AUTH_PAE, AUTHENTICATING)
312 : {
313 1319 : SM_ENTRY_MA(AUTH_PAE, AUTHENTICATING, auth_pae);
314 :
315 1319 : sm->eapolStart = FALSE;
316 1319 : sm->authSuccess = FALSE;
317 1319 : sm->authFail = FALSE;
318 1319 : sm->authTimeout = FALSE;
319 1319 : sm->authStart = TRUE;
320 1319 : sm->keyRun = FALSE;
321 1319 : sm->keyDone = FALSE;
322 1319 : }
323 :
324 :
325 23 : SM_STATE(AUTH_PAE, ABORTING)
326 : {
327 23 : if (sm->auth_pae_state == AUTH_PAE_AUTHENTICATING) {
328 23 : if (sm->authTimeout)
329 0 : sm->authAuthTimeoutsWhileAuthenticating++;
330 23 : if (sm->eapolStart)
331 23 : sm->authAuthEapStartsWhileAuthenticating++;
332 23 : if (sm->eapolLogoff)
333 0 : sm->authAuthEapLogoffWhileAuthenticating++;
334 : }
335 :
336 23 : SM_ENTRY_MA(AUTH_PAE, ABORTING, auth_pae);
337 :
338 23 : sm->authAbort = TRUE;
339 23 : sm->keyRun = FALSE;
340 23 : sm->keyDone = FALSE;
341 23 : }
342 :
343 :
344 0 : SM_STATE(AUTH_PAE, FORCE_AUTH)
345 : {
346 0 : SM_ENTRY_MA(AUTH_PAE, FORCE_AUTH, auth_pae);
347 :
348 0 : sm->authPortStatus = Authorized;
349 0 : setPortAuthorized();
350 0 : sm->portMode = ForceAuthorized;
351 0 : sm->eapolStart = FALSE;
352 0 : txCannedSuccess();
353 0 : }
354 :
355 :
356 0 : SM_STATE(AUTH_PAE, FORCE_UNAUTH)
357 : {
358 0 : SM_ENTRY_MA(AUTH_PAE, FORCE_UNAUTH, auth_pae);
359 :
360 0 : sm->authPortStatus = Unauthorized;
361 0 : setPortUnauthorized();
362 0 : sm->portMode = ForceUnauthorized;
363 0 : sm->eapolStart = FALSE;
364 0 : txCannedFail();
365 0 : }
366 :
367 :
368 47246 : SM_STEP(AUTH_PAE)
369 : {
370 93270 : if ((sm->portControl == Auto && sm->portMode != sm->portControl) ||
371 92048 : sm->initialize || !sm->eap_if->portEnabled)
372 5577 : SM_ENTER_GLOBAL(AUTH_PAE, INITIALIZE);
373 41669 : else if (sm->portControl == ForceAuthorized &&
374 0 : sm->portMode != sm->portControl &&
375 0 : !(sm->initialize || !sm->eap_if->portEnabled))
376 0 : SM_ENTER_GLOBAL(AUTH_PAE, FORCE_AUTH);
377 41669 : else if (sm->portControl == ForceUnauthorized &&
378 0 : sm->portMode != sm->portControl &&
379 0 : !(sm->initialize || !sm->eap_if->portEnabled))
380 0 : SM_ENTER_GLOBAL(AUTH_PAE, FORCE_UNAUTH);
381 : else {
382 41669 : switch (sm->auth_pae_state) {
383 : case AUTH_PAE_INITIALIZE:
384 1237 : SM_ENTER(AUTH_PAE, DISCONNECTED);
385 1237 : break;
386 : case AUTH_PAE_DISCONNECTED:
387 1237 : SM_ENTER(AUTH_PAE, RESTART);
388 1237 : break;
389 : case AUTH_PAE_RESTART:
390 2642 : if (!sm->eap_if->eapRestart)
391 1321 : SM_ENTER(AUTH_PAE, CONNECTING);
392 2642 : break;
393 : case AUTH_PAE_HELD:
394 0 : if (sm->quietWhile == 0)
395 0 : SM_ENTER(AUTH_PAE, RESTART);
396 0 : break;
397 : case AUTH_PAE_CONNECTING:
398 1366 : if (sm->eapolLogoff || sm->reAuthCount > sm->reAuthMax)
399 0 : SM_ENTER(AUTH_PAE, DISCONNECTED);
400 2685 : else if ((sm->eap_if->eapReq &&
401 1366 : sm->reAuthCount <= sm->reAuthMax) ||
402 94 : sm->eap_if->eapSuccess || sm->eap_if->eapFail)
403 1319 : SM_ENTER(AUTH_PAE, AUTHENTICATING);
404 1366 : break;
405 : case AUTH_PAE_AUTHENTICATED:
406 873 : if (sm->eapolStart || sm->reAuthenticate)
407 61 : SM_ENTER(AUTH_PAE, RESTART);
408 812 : else if (sm->eapolLogoff || !sm->portValid)
409 2 : SM_ENTER(AUTH_PAE, DISCONNECTED);
410 873 : break;
411 : case AUTH_PAE_AUTHENTICATING:
412 34291 : if (sm->authSuccess && sm->portValid)
413 639 : SM_ENTER(AUTH_PAE, AUTHENTICATED);
414 66921 : else if (sm->authFail ||
415 33269 : (sm->keyDone && !sm->portValid))
416 383 : SM_ENTER(AUTH_PAE, HELD);
417 66515 : else if (sm->eapolStart || sm->eapolLogoff ||
418 33246 : sm->authTimeout)
419 23 : SM_ENTER(AUTH_PAE, ABORTING);
420 34291 : break;
421 : case AUTH_PAE_ABORTING:
422 23 : if (sm->eapolLogoff && !sm->authAbort)
423 0 : SM_ENTER(AUTH_PAE, DISCONNECTED);
424 23 : else if (!sm->eapolLogoff && !sm->authAbort)
425 23 : SM_ENTER(AUTH_PAE, RESTART);
426 23 : break;
427 : case AUTH_PAE_FORCE_AUTH:
428 0 : if (sm->eapolStart)
429 0 : SM_ENTER(AUTH_PAE, FORCE_AUTH);
430 0 : break;
431 : case AUTH_PAE_FORCE_UNAUTH:
432 0 : if (sm->eapolStart)
433 0 : SM_ENTER(AUTH_PAE, FORCE_UNAUTH);
434 0 : break;
435 : }
436 : }
437 47246 : }
438 :
439 :
440 :
441 : /* Backend Authentication state machine */
442 :
443 1245 : SM_STATE(BE_AUTH, INITIALIZE)
444 : {
445 1245 : SM_ENTRY_MA(BE_AUTH, INITIALIZE, be_auth);
446 :
447 1245 : abortAuth();
448 1245 : sm->eap_if->eapNoReq = FALSE;
449 1245 : sm->authAbort = FALSE;
450 1245 : }
451 :
452 :
453 5563 : SM_STATE(BE_AUTH, REQUEST)
454 : {
455 5563 : SM_ENTRY_MA(BE_AUTH, REQUEST, be_auth);
456 :
457 5563 : txReq();
458 5563 : sm->eap_if->eapReq = FALSE;
459 5563 : sm->backendOtherRequestsToSupplicant++;
460 :
461 : /*
462 : * Clearing eapolEap here is not specified in IEEE Std 802.1X-2004, but
463 : * it looks like this would be logical thing to do there since the old
464 : * EAP response would not be valid anymore after the new EAP request
465 : * was sent out.
466 : *
467 : * A race condition has been reported, in which hostapd ended up
468 : * sending out EAP-Response/Identity as a response to the first
469 : * EAP-Request from the main EAP method. This can be avoided by
470 : * clearing eapolEap here.
471 : */
472 5563 : sm->eapolEap = FALSE;
473 5563 : }
474 :
475 :
476 5279 : SM_STATE(BE_AUTH, RESPONSE)
477 : {
478 5279 : SM_ENTRY_MA(BE_AUTH, RESPONSE, be_auth);
479 :
480 5279 : sm->authTimeout = FALSE;
481 5279 : sm->eapolEap = FALSE;
482 5279 : sm->eap_if->eapNoReq = FALSE;
483 5279 : sm->aWhile = sm->serverTimeout;
484 5279 : sm->eap_if->eapResp = TRUE;
485 : /* sendRespToServer(); */
486 5279 : sm->backendResponses++;
487 5279 : }
488 :
489 :
490 619 : SM_STATE(BE_AUTH, SUCCESS)
491 : {
492 619 : SM_ENTRY_MA(BE_AUTH, SUCCESS, be_auth);
493 :
494 619 : txReq();
495 619 : sm->authSuccess = TRUE;
496 619 : sm->keyRun = TRUE;
497 619 : }
498 :
499 :
500 382 : SM_STATE(BE_AUTH, FAIL)
501 : {
502 382 : SM_ENTRY_MA(BE_AUTH, FAIL, be_auth);
503 :
504 382 : txReq();
505 382 : sm->authFail = TRUE;
506 382 : }
507 :
508 :
509 0 : SM_STATE(BE_AUTH, TIMEOUT)
510 : {
511 0 : SM_ENTRY_MA(BE_AUTH, TIMEOUT, be_auth);
512 :
513 0 : sm->authTimeout = TRUE;
514 0 : }
515 :
516 :
517 2279 : SM_STATE(BE_AUTH, IDLE)
518 : {
519 2279 : SM_ENTRY_MA(BE_AUTH, IDLE, be_auth);
520 :
521 2279 : sm->authStart = FALSE;
522 2279 : }
523 :
524 :
525 11 : SM_STATE(BE_AUTH, IGNORE)
526 : {
527 11 : SM_ENTRY_MA(BE_AUTH, IGNORE, be_auth);
528 :
529 11 : sm->eap_if->eapNoReq = FALSE;
530 11 : }
531 :
532 :
533 47246 : SM_STEP(BE_AUTH)
534 : {
535 47246 : if (sm->portControl != Auto || sm->initialize || sm->authAbort) {
536 1245 : SM_ENTER_GLOBAL(BE_AUTH, INITIALIZE);
537 48491 : return;
538 : }
539 :
540 46001 : switch (sm->be_auth_state) {
541 : case BE_AUTH_INITIALIZE:
542 1245 : SM_ENTER(BE_AUTH, IDLE);
543 1245 : break;
544 : case BE_AUTH_REQUEST:
545 14805 : if (sm->eapolEap)
546 5278 : SM_ENTER(BE_AUTH, RESPONSE);
547 9527 : else if (sm->eap_if->eapReq)
548 8 : SM_ENTER(BE_AUTH, REQUEST);
549 9519 : else if (sm->eap_if->eapTimeout)
550 0 : SM_ENTER(BE_AUTH, TIMEOUT);
551 14805 : break;
552 : case BE_AUTH_RESPONSE:
553 17292 : if (sm->eap_if->eapNoReq)
554 11 : SM_ENTER(BE_AUTH, IGNORE);
555 17292 : if (sm->eap_if->eapReq) {
556 4239 : sm->backendAccessChallenges++;
557 4239 : SM_ENTER(BE_AUTH, REQUEST);
558 13053 : } else if (sm->aWhile == 0)
559 0 : SM_ENTER(BE_AUTH, TIMEOUT);
560 13053 : else if (sm->eap_if->eapFail) {
561 382 : sm->backendAuthFails++;
562 382 : SM_ENTER(BE_AUTH, FAIL);
563 12671 : } else if (sm->eap_if->eapSuccess) {
564 619 : sm->backendAuthSuccesses++;
565 619 : SM_ENTER(BE_AUTH, SUCCESS);
566 : }
567 17292 : break;
568 : case BE_AUTH_SUCCESS:
569 652 : SM_ENTER(BE_AUTH, IDLE);
570 652 : break;
571 : case BE_AUTH_FAIL:
572 382 : SM_ENTER(BE_AUTH, IDLE);
573 382 : break;
574 : case BE_AUTH_TIMEOUT:
575 0 : SM_ENTER(BE_AUTH, IDLE);
576 0 : break;
577 : case BE_AUTH_IDLE:
578 11603 : if (sm->eap_if->eapFail && sm->authStart)
579 0 : SM_ENTER(BE_AUTH, FAIL);
580 11603 : else if (sm->eap_if->eapReq && sm->authStart)
581 1314 : SM_ENTER(BE_AUTH, REQUEST);
582 10289 : else if (sm->eap_if->eapSuccess && sm->authStart)
583 0 : SM_ENTER(BE_AUTH, SUCCESS);
584 11603 : break;
585 : case BE_AUTH_IGNORE:
586 22 : if (sm->eapolEap)
587 1 : SM_ENTER(BE_AUTH, RESPONSE);
588 21 : else if (sm->eap_if->eapReq)
589 2 : SM_ENTER(BE_AUTH, REQUEST);
590 19 : else if (sm->eap_if->eapTimeout)
591 0 : SM_ENTER(BE_AUTH, TIMEOUT);
592 22 : break;
593 : }
594 : }
595 :
596 :
597 :
598 : /* Reauthentication Timer state machine */
599 :
600 41384 : SM_STATE(REAUTH_TIMER, INITIALIZE)
601 : {
602 41384 : SM_ENTRY_MA(REAUTH_TIMER, INITIALIZE, reauth_timer);
603 :
604 41384 : sm->reAuthWhen = sm->reAuthPeriod;
605 41384 : }
606 :
607 :
608 1 : SM_STATE(REAUTH_TIMER, REAUTHENTICATE)
609 : {
610 1 : SM_ENTRY_MA(REAUTH_TIMER, REAUTHENTICATE, reauth_timer);
611 :
612 1 : sm->reAuthenticate = TRUE;
613 1 : sm->eapol->cb.eapol_event(sm->eapol->conf.ctx, sm->sta,
614 : EAPOL_AUTH_REAUTHENTICATE);
615 1 : }
616 :
617 :
618 47246 : SM_STEP(REAUTH_TIMER)
619 : {
620 93270 : if (sm->portControl != Auto || sm->initialize ||
621 51887 : sm->authPortStatus == Unauthorized || !sm->reAuthEnabled) {
622 41383 : SM_ENTER_GLOBAL(REAUTH_TIMER, INITIALIZE);
623 88629 : return;
624 : }
625 :
626 5863 : switch (sm->reauth_timer_state) {
627 : case REAUTH_TIMER_INITIALIZE:
628 5862 : if (sm->reAuthWhen == 0)
629 1 : SM_ENTER(REAUTH_TIMER, REAUTHENTICATE);
630 5862 : break;
631 : case REAUTH_TIMER_REAUTHENTICATE:
632 1 : SM_ENTER(REAUTH_TIMER, INITIALIZE);
633 1 : break;
634 : }
635 : }
636 :
637 :
638 :
639 : /* Authenticator Key Transmit state machine */
640 :
641 1222 : SM_STATE(AUTH_KEY_TX, NO_KEY_TRANSMIT)
642 : {
643 1222 : SM_ENTRY_MA(AUTH_KEY_TX, NO_KEY_TRANSMIT, auth_key_tx);
644 1222 : }
645 :
646 :
647 2 : SM_STATE(AUTH_KEY_TX, KEY_TRANSMIT)
648 : {
649 2 : SM_ENTRY_MA(AUTH_KEY_TX, KEY_TRANSMIT, auth_key_tx);
650 :
651 2 : txKey();
652 2 : sm->eap_if->eapKeyAvailable = FALSE;
653 2 : sm->keyDone = TRUE;
654 2 : }
655 :
656 :
657 47246 : SM_STEP(AUTH_KEY_TX)
658 : {
659 47246 : if (sm->initialize || sm->portControl != Auto) {
660 1222 : SM_ENTER_GLOBAL(AUTH_KEY_TX, NO_KEY_TRANSMIT);
661 48468 : return;
662 : }
663 :
664 46024 : switch (sm->auth_key_tx_state) {
665 : case AUTH_KEY_TX_NO_KEY_TRANSMIT:
666 46022 : if (sm->keyTxEnabled && sm->eap_if->eapKeyAvailable &&
667 4 : sm->keyRun && !(sm->flags & EAPOL_SM_USES_WPA))
668 2 : SM_ENTER(AUTH_KEY_TX, KEY_TRANSMIT);
669 46020 : break;
670 : case AUTH_KEY_TX_KEY_TRANSMIT:
671 4 : if (!sm->keyTxEnabled || !sm->keyRun)
672 0 : SM_ENTER(AUTH_KEY_TX, NO_KEY_TRANSMIT);
673 4 : else if (sm->eap_if->eapKeyAvailable)
674 0 : SM_ENTER(AUTH_KEY_TX, KEY_TRANSMIT);
675 4 : break;
676 : }
677 : }
678 :
679 :
680 :
681 : /* Key Receive state machine */
682 :
683 5962 : SM_STATE(KEY_RX, NO_KEY_RECEIVE)
684 : {
685 5962 : SM_ENTRY_MA(KEY_RX, NO_KEY_RECEIVE, key_rx);
686 5962 : }
687 :
688 :
689 0 : SM_STATE(KEY_RX, KEY_RECEIVE)
690 : {
691 0 : SM_ENTRY_MA(KEY_RX, KEY_RECEIVE, key_rx);
692 :
693 : processKey();
694 0 : sm->rxKey = FALSE;
695 0 : }
696 :
697 :
698 47246 : SM_STEP(KEY_RX)
699 : {
700 47246 : if (sm->initialize || !sm->eap_if->portEnabled) {
701 5962 : SM_ENTER_GLOBAL(KEY_RX, NO_KEY_RECEIVE);
702 53208 : return;
703 : }
704 :
705 41284 : switch (sm->key_rx_state) {
706 : case KEY_RX_NO_KEY_RECEIVE:
707 41284 : if (sm->rxKey)
708 0 : SM_ENTER(KEY_RX, KEY_RECEIVE);
709 41284 : break;
710 : case KEY_RX_KEY_RECEIVE:
711 0 : if (sm->rxKey)
712 0 : SM_ENTER(KEY_RX, KEY_RECEIVE);
713 0 : break;
714 : }
715 : }
716 :
717 :
718 :
719 : /* Controlled Directions state machine */
720 :
721 1222 : SM_STATE(CTRL_DIR, FORCE_BOTH)
722 : {
723 1222 : SM_ENTRY_MA(CTRL_DIR, FORCE_BOTH, ctrl_dir);
724 1222 : sm->operControlledDirections = Both;
725 1222 : }
726 :
727 :
728 1222 : SM_STATE(CTRL_DIR, IN_OR_BOTH)
729 : {
730 1222 : SM_ENTRY_MA(CTRL_DIR, IN_OR_BOTH, ctrl_dir);
731 1222 : sm->operControlledDirections = sm->adminControlledDirections;
732 1222 : }
733 :
734 :
735 47246 : SM_STEP(CTRL_DIR)
736 : {
737 47246 : if (sm->initialize) {
738 1222 : SM_ENTER_GLOBAL(CTRL_DIR, IN_OR_BOTH);
739 48468 : return;
740 : }
741 :
742 46024 : switch (sm->ctrl_dir_state) {
743 : case CTRL_DIR_FORCE_BOTH:
744 44802 : if (sm->eap_if->portEnabled && sm->operEdge)
745 0 : SM_ENTER(CTRL_DIR, IN_OR_BOTH);
746 44802 : break;
747 : case CTRL_DIR_IN_OR_BOTH:
748 2444 : if (sm->operControlledDirections !=
749 1222 : sm->adminControlledDirections)
750 0 : SM_ENTER(CTRL_DIR, IN_OR_BOTH);
751 1222 : if (!sm->eap_if->portEnabled || !sm->operEdge)
752 1222 : SM_ENTER(CTRL_DIR, FORCE_BOTH);
753 1222 : break;
754 : }
755 : }
756 :
757 :
758 :
759 : struct eapol_state_machine *
760 1222 : eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
761 : int flags, const struct wpabuf *assoc_wps_ie,
762 : const struct wpabuf *assoc_p2p_ie, void *sta_ctx,
763 : const char *identity, const char *radius_cui)
764 : {
765 : struct eapol_state_machine *sm;
766 : struct eap_config eap_conf;
767 :
768 1222 : if (eapol == NULL)
769 0 : return NULL;
770 :
771 1222 : sm = os_zalloc(sizeof(*sm));
772 1222 : if (sm == NULL) {
773 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X state machine allocation "
774 : "failed");
775 0 : return NULL;
776 : }
777 1222 : sm->radius_identifier = -1;
778 1222 : os_memcpy(sm->addr, addr, ETH_ALEN);
779 1222 : sm->flags = flags;
780 :
781 1222 : sm->eapol = eapol;
782 1222 : sm->sta = sta_ctx;
783 :
784 : /* Set default values for state machine constants */
785 1222 : sm->auth_pae_state = AUTH_PAE_INITIALIZE;
786 1222 : sm->quietPeriod = AUTH_PAE_DEFAULT_quietPeriod;
787 1222 : sm->reAuthMax = AUTH_PAE_DEFAULT_reAuthMax;
788 :
789 1222 : sm->be_auth_state = BE_AUTH_INITIALIZE;
790 1222 : sm->serverTimeout = BE_AUTH_DEFAULT_serverTimeout;
791 :
792 1222 : sm->reauth_timer_state = REAUTH_TIMER_INITIALIZE;
793 1222 : sm->reAuthPeriod = eapol->conf.eap_reauth_period;
794 1222 : sm->reAuthEnabled = eapol->conf.eap_reauth_period > 0 ? TRUE : FALSE;
795 :
796 1222 : sm->auth_key_tx_state = AUTH_KEY_TX_NO_KEY_TRANSMIT;
797 :
798 1222 : sm->key_rx_state = KEY_RX_NO_KEY_RECEIVE;
799 :
800 1222 : sm->ctrl_dir_state = CTRL_DIR_IN_OR_BOTH;
801 :
802 1222 : sm->portControl = Auto;
803 :
804 1250 : if (!eapol->conf.wpa &&
805 54 : (eapol->default_wep_key || eapol->conf.individual_wep_key_len > 0))
806 2 : sm->keyTxEnabled = TRUE;
807 : else
808 1220 : sm->keyTxEnabled = FALSE;
809 1222 : if (eapol->conf.wpa)
810 1194 : sm->portValid = FALSE;
811 : else
812 28 : sm->portValid = TRUE;
813 :
814 1222 : os_memset(&eap_conf, 0, sizeof(eap_conf));
815 1222 : eap_conf.eap_server = eapol->conf.eap_server;
816 1222 : eap_conf.ssl_ctx = eapol->conf.ssl_ctx;
817 1222 : eap_conf.msg_ctx = eapol->conf.msg_ctx;
818 1222 : eap_conf.eap_sim_db_priv = eapol->conf.eap_sim_db_priv;
819 1222 : eap_conf.pac_opaque_encr_key = eapol->conf.pac_opaque_encr_key;
820 1222 : eap_conf.eap_fast_a_id = eapol->conf.eap_fast_a_id;
821 1222 : eap_conf.eap_fast_a_id_len = eapol->conf.eap_fast_a_id_len;
822 1222 : eap_conf.eap_fast_a_id_info = eapol->conf.eap_fast_a_id_info;
823 1222 : eap_conf.eap_fast_prov = eapol->conf.eap_fast_prov;
824 1222 : eap_conf.pac_key_lifetime = eapol->conf.pac_key_lifetime;
825 1222 : eap_conf.pac_key_refresh_time = eapol->conf.pac_key_refresh_time;
826 1222 : eap_conf.eap_sim_aka_result_ind = eapol->conf.eap_sim_aka_result_ind;
827 1222 : eap_conf.tnc = eapol->conf.tnc;
828 1222 : eap_conf.wps = eapol->conf.wps;
829 1222 : eap_conf.assoc_wps_ie = assoc_wps_ie;
830 1222 : eap_conf.assoc_p2p_ie = assoc_p2p_ie;
831 1222 : eap_conf.peer_addr = addr;
832 1222 : eap_conf.fragment_size = eapol->conf.fragment_size;
833 1222 : eap_conf.pwd_group = eapol->conf.pwd_group;
834 1222 : eap_conf.pbc_in_m1 = eapol->conf.pbc_in_m1;
835 1222 : eap_conf.server_id = eapol->conf.server_id;
836 1222 : eap_conf.server_id_len = eapol->conf.server_id_len;
837 1222 : eap_conf.erp = eapol->conf.erp;
838 1222 : sm->eap = eap_server_sm_init(sm, &eapol_cb, &eap_conf);
839 1222 : if (sm->eap == NULL) {
840 0 : eapol_auth_free(sm);
841 0 : return NULL;
842 : }
843 1222 : sm->eap_if = eap_get_interface(sm->eap);
844 :
845 1222 : eapol_auth_initialize(sm);
846 :
847 1222 : if (identity) {
848 0 : sm->identity = (u8 *) os_strdup(identity);
849 0 : if (sm->identity)
850 0 : sm->identity_len = os_strlen(identity);
851 : }
852 1222 : if (radius_cui)
853 0 : sm->radius_cui = wpabuf_alloc_copy(radius_cui,
854 : os_strlen(radius_cui));
855 :
856 1222 : sm->acct_multi_session_id_lo = eapol->acct_multi_session_id_lo++;
857 1222 : if (eapol->acct_multi_session_id_lo == 0)
858 0 : eapol->acct_multi_session_id_hi++;
859 1222 : sm->acct_multi_session_id_hi = eapol->acct_multi_session_id_hi;
860 :
861 1222 : return sm;
862 : }
863 :
864 :
865 1222 : void eapol_auth_free(struct eapol_state_machine *sm)
866 : {
867 1222 : if (sm == NULL)
868 1222 : return;
869 :
870 1222 : eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
871 1222 : eloop_cancel_timeout(eapol_sm_step_cb, sm, NULL);
872 1222 : if (sm->eap)
873 1222 : eap_server_sm_deinit(sm->eap);
874 1222 : os_free(sm);
875 : }
876 :
877 :
878 264127 : static int eapol_sm_sta_entry_alive(struct eapol_authenticator *eapol,
879 : const u8 *addr)
880 : {
881 264127 : return eapol->cb.sta_entry_alive(eapol->conf.ctx, addr);
882 : }
883 :
884 :
885 17964 : static void eapol_sm_step_run(struct eapol_state_machine *sm)
886 : {
887 17964 : struct eapol_authenticator *eapol = sm->eapol;
888 : u8 addr[ETH_ALEN];
889 : unsigned int prev_auth_pae, prev_be_auth, prev_reauth_timer,
890 : prev_auth_key_tx, prev_key_rx, prev_ctrl_dir;
891 17964 : int max_steps = 100;
892 :
893 17964 : os_memcpy(addr, sm->addr, ETH_ALEN);
894 :
895 : /*
896 : * Allow EAPOL state machines to run as long as there are state
897 : * changes, but exit and return here through event loop if more than
898 : * 100 steps is needed as a precaution against infinite loops inside
899 : * eloop callback.
900 : */
901 : restart:
902 47246 : prev_auth_pae = sm->auth_pae_state;
903 47246 : prev_be_auth = sm->be_auth_state;
904 47246 : prev_reauth_timer = sm->reauth_timer_state;
905 47246 : prev_auth_key_tx = sm->auth_key_tx_state;
906 47246 : prev_key_rx = sm->key_rx_state;
907 47246 : prev_ctrl_dir = sm->ctrl_dir_state;
908 :
909 47246 : SM_STEP_RUN(AUTH_PAE);
910 47246 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
911 47246 : SM_STEP_RUN(BE_AUTH);
912 47246 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
913 47246 : SM_STEP_RUN(REAUTH_TIMER);
914 47246 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
915 47246 : SM_STEP_RUN(AUTH_KEY_TX);
916 47246 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
917 47246 : SM_STEP_RUN(KEY_RX);
918 47246 : if (sm->initializing || eapol_sm_sta_entry_alive(eapol, addr))
919 47246 : SM_STEP_RUN(CTRL_DIR);
920 :
921 87846 : if (prev_auth_pae != sm->auth_pae_state ||
922 68866 : prev_be_auth != sm->be_auth_state ||
923 56531 : prev_reauth_timer != sm->reauth_timer_state ||
924 56530 : prev_auth_key_tx != sm->auth_key_tx_state ||
925 56530 : prev_key_rx != sm->key_rx_state ||
926 28265 : prev_ctrl_dir != sm->ctrl_dir_state) {
927 18981 : if (--max_steps > 0)
928 18981 : goto restart;
929 : /* Re-run from eloop timeout */
930 0 : eapol_auth_step(sm);
931 0 : return;
932 : }
933 :
934 28265 : if (eapol_sm_sta_entry_alive(eapol, addr) && sm->eap) {
935 25821 : if (eap_server_sm_step(sm->eap)) {
936 10301 : if (--max_steps > 0)
937 10301 : goto restart;
938 : /* Re-run from eloop timeout */
939 0 : eapol_auth_step(sm);
940 0 : return;
941 : }
942 :
943 : /* TODO: find a better location for this */
944 15520 : if (sm->eap_if->aaaEapResp) {
945 3293 : sm->eap_if->aaaEapResp = FALSE;
946 3293 : if (sm->eap_if->aaaEapRespData == NULL) {
947 2 : wpa_printf(MSG_DEBUG, "EAPOL: aaaEapResp set, "
948 : "but no aaaEapRespData available");
949 2 : return;
950 : }
951 13164 : sm->eapol->cb.aaa_send(
952 3291 : sm->eapol->conf.ctx, sm->sta,
953 3291 : wpabuf_head(sm->eap_if->aaaEapRespData),
954 3291 : wpabuf_len(sm->eap_if->aaaEapRespData));
955 : }
956 : }
957 :
958 17962 : if (eapol_sm_sta_entry_alive(eapol, addr))
959 15518 : sm->eapol->cb.eapol_event(sm->eapol->conf.ctx, sm->sta,
960 : EAPOL_AUTH_SM_CHANGE);
961 : }
962 :
963 :
964 15208 : static void eapol_sm_step_cb(void *eloop_ctx, void *timeout_ctx)
965 : {
966 15208 : struct eapol_state_machine *sm = eloop_ctx;
967 15208 : eapol_sm_step_run(sm);
968 15208 : }
969 :
970 :
971 : /**
972 : * eapol_auth_step - Advance EAPOL state machines
973 : * @sm: EAPOL state machine
974 : *
975 : * This function is called to advance EAPOL state machines after any change
976 : * that could affect their state.
977 : */
978 18019 : void eapol_auth_step(struct eapol_state_machine *sm)
979 : {
980 : /*
981 : * Run eapol_sm_step_run from a registered timeout to make sure that
982 : * other possible timeouts/events are processed and to avoid long
983 : * function call chains.
984 : */
985 :
986 18019 : eloop_register_timeout(0, 0, eapol_sm_step_cb, sm, NULL);
987 18019 : }
988 :
989 :
990 1222 : static void eapol_auth_initialize(struct eapol_state_machine *sm)
991 : {
992 1222 : sm->initializing = TRUE;
993 : /* Initialize the state machines by asserting initialize and then
994 : * deasserting it after one step */
995 1222 : sm->initialize = TRUE;
996 1222 : eapol_sm_step_run(sm);
997 1222 : sm->initialize = FALSE;
998 1222 : eapol_sm_step_run(sm);
999 1222 : sm->initializing = FALSE;
1000 :
1001 : /* Start one second tick for port timers state machine */
1002 1222 : eloop_cancel_timeout(eapol_port_timers_tick, NULL, sm);
1003 1222 : eloop_register_timeout(1, 0, eapol_port_timers_tick, NULL, sm);
1004 1222 : }
1005 :
1006 :
1007 385 : static int eapol_sm_get_eap_user(void *ctx, const u8 *identity,
1008 : size_t identity_len, int phase2,
1009 : struct eap_user *user)
1010 : {
1011 385 : struct eapol_state_machine *sm = ctx;
1012 : int ret;
1013 :
1014 385 : ret = sm->eapol->cb.get_eap_user(sm->eapol->conf.ctx, identity,
1015 : identity_len, phase2, user);
1016 385 : if (user->remediation)
1017 0 : sm->remediation = 1;
1018 385 : return ret;
1019 : }
1020 :
1021 :
1022 1287 : static const char * eapol_sm_get_eap_req_id_text(void *ctx, size_t *len)
1023 : {
1024 1287 : struct eapol_state_machine *sm = ctx;
1025 1287 : *len = sm->eapol->conf.eap_req_id_text_len;
1026 1287 : return sm->eapol->conf.eap_req_id_text;
1027 : }
1028 :
1029 :
1030 1314 : static int eapol_sm_get_erp_send_reauth_start(void *ctx)
1031 : {
1032 1314 : struct eapol_state_machine *sm = ctx;
1033 1314 : return sm->eapol->conf.erp_send_reauth_start;
1034 : }
1035 :
1036 :
1037 44 : static const char * eapol_sm_get_erp_domain(void *ctx)
1038 : {
1039 44 : struct eapol_state_machine *sm = ctx;
1040 44 : return sm->eapol->conf.erp_domain;
1041 : }
1042 :
1043 :
1044 5 : static struct eap_server_erp_key * eapol_sm_erp_get_key(void *ctx,
1045 : const char *keyname)
1046 : {
1047 5 : struct eapol_state_machine *sm = ctx;
1048 5 : return sm->eapol->cb.erp_get_key(sm->eapol->conf.ctx, keyname);
1049 : }
1050 :
1051 :
1052 5 : static int eapol_sm_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
1053 : {
1054 5 : struct eapol_state_machine *sm = ctx;
1055 5 : return sm->eapol->cb.erp_add_key(sm->eapol->conf.ctx, erp);
1056 : }
1057 :
1058 :
1059 : static struct eapol_callbacks eapol_cb =
1060 : {
1061 : eapol_sm_get_eap_user,
1062 : eapol_sm_get_eap_req_id_text,
1063 : NULL,
1064 : eapol_sm_get_erp_send_reauth_start,
1065 : eapol_sm_get_erp_domain,
1066 : eapol_sm_erp_get_key,
1067 : eapol_sm_erp_add_key,
1068 : };
1069 :
1070 :
1071 29 : int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx)
1072 : {
1073 29 : if (sm == NULL || ctx == NULL || ctx != sm->eap)
1074 0 : return -1;
1075 :
1076 29 : eap_sm_pending_cb(sm->eap);
1077 29 : eapol_auth_step(sm);
1078 :
1079 29 : return 0;
1080 : }
1081 :
1082 :
1083 1248 : static int eapol_auth_conf_clone(struct eapol_auth_config *dst,
1084 : struct eapol_auth_config *src)
1085 : {
1086 1248 : dst->ctx = src->ctx;
1087 1248 : dst->eap_reauth_period = src->eap_reauth_period;
1088 1248 : dst->wpa = src->wpa;
1089 1248 : dst->individual_wep_key_len = src->individual_wep_key_len;
1090 1248 : dst->eap_server = src->eap_server;
1091 1248 : dst->ssl_ctx = src->ssl_ctx;
1092 1248 : dst->msg_ctx = src->msg_ctx;
1093 1248 : dst->eap_sim_db_priv = src->eap_sim_db_priv;
1094 1248 : os_free(dst->eap_req_id_text);
1095 1248 : dst->pwd_group = src->pwd_group;
1096 1248 : dst->pbc_in_m1 = src->pbc_in_m1;
1097 1248 : dst->server_id = src->server_id;
1098 1248 : dst->server_id_len = src->server_id_len;
1099 1248 : if (src->eap_req_id_text) {
1100 1 : dst->eap_req_id_text = os_malloc(src->eap_req_id_text_len);
1101 1 : if (dst->eap_req_id_text == NULL)
1102 0 : return -1;
1103 1 : os_memcpy(dst->eap_req_id_text, src->eap_req_id_text,
1104 : src->eap_req_id_text_len);
1105 1 : dst->eap_req_id_text_len = src->eap_req_id_text_len;
1106 : } else {
1107 1247 : dst->eap_req_id_text = NULL;
1108 1247 : dst->eap_req_id_text_len = 0;
1109 : }
1110 1248 : if (src->pac_opaque_encr_key) {
1111 13 : dst->pac_opaque_encr_key = os_malloc(16);
1112 13 : if (dst->pac_opaque_encr_key == NULL)
1113 0 : goto fail;
1114 13 : os_memcpy(dst->pac_opaque_encr_key, src->pac_opaque_encr_key,
1115 : 16);
1116 : } else
1117 1235 : dst->pac_opaque_encr_key = NULL;
1118 1248 : if (src->eap_fast_a_id) {
1119 13 : dst->eap_fast_a_id = os_malloc(src->eap_fast_a_id_len);
1120 13 : if (dst->eap_fast_a_id == NULL)
1121 0 : goto fail;
1122 13 : os_memcpy(dst->eap_fast_a_id, src->eap_fast_a_id,
1123 : src->eap_fast_a_id_len);
1124 13 : dst->eap_fast_a_id_len = src->eap_fast_a_id_len;
1125 : } else
1126 1235 : dst->eap_fast_a_id = NULL;
1127 1248 : if (src->eap_fast_a_id_info) {
1128 13 : dst->eap_fast_a_id_info = os_strdup(src->eap_fast_a_id_info);
1129 13 : if (dst->eap_fast_a_id_info == NULL)
1130 0 : goto fail;
1131 : } else
1132 1235 : dst->eap_fast_a_id_info = NULL;
1133 1248 : dst->eap_fast_prov = src->eap_fast_prov;
1134 1248 : dst->pac_key_lifetime = src->pac_key_lifetime;
1135 1248 : dst->pac_key_refresh_time = src->pac_key_refresh_time;
1136 1248 : dst->eap_sim_aka_result_ind = src->eap_sim_aka_result_ind;
1137 1248 : dst->tnc = src->tnc;
1138 1248 : dst->wps = src->wps;
1139 1248 : dst->fragment_size = src->fragment_size;
1140 :
1141 1248 : os_free(dst->erp_domain);
1142 1248 : if (src->erp_domain) {
1143 9 : dst->erp_domain = os_strdup(src->erp_domain);
1144 9 : if (dst->erp_domain == NULL)
1145 0 : goto fail;
1146 : } else {
1147 1239 : dst->erp_domain = NULL;
1148 : }
1149 1248 : dst->erp_send_reauth_start = src->erp_send_reauth_start;
1150 1248 : dst->erp = src->erp;
1151 :
1152 1248 : return 0;
1153 :
1154 : fail:
1155 0 : eapol_auth_conf_free(dst);
1156 0 : return -1;
1157 : }
1158 :
1159 :
1160 1248 : static void eapol_auth_conf_free(struct eapol_auth_config *conf)
1161 : {
1162 1248 : os_free(conf->eap_req_id_text);
1163 1248 : conf->eap_req_id_text = NULL;
1164 1248 : os_free(conf->pac_opaque_encr_key);
1165 1248 : conf->pac_opaque_encr_key = NULL;
1166 1248 : os_free(conf->eap_fast_a_id);
1167 1248 : conf->eap_fast_a_id = NULL;
1168 1248 : os_free(conf->eap_fast_a_id_info);
1169 1248 : conf->eap_fast_a_id_info = NULL;
1170 1248 : os_free(conf->erp_domain);
1171 1248 : conf->erp_domain = NULL;
1172 1248 : }
1173 :
1174 :
1175 1248 : struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
1176 : struct eapol_auth_cb *cb)
1177 : {
1178 : struct eapol_authenticator *eapol;
1179 : struct os_time now;
1180 :
1181 1248 : eapol = os_zalloc(sizeof(*eapol));
1182 1248 : if (eapol == NULL)
1183 0 : return NULL;
1184 :
1185 1248 : if (eapol_auth_conf_clone(&eapol->conf, conf) < 0) {
1186 0 : os_free(eapol);
1187 0 : return NULL;
1188 : }
1189 :
1190 1248 : if (conf->individual_wep_key_len > 0) {
1191 : /* use key0 in individual key and key1 in broadcast key */
1192 2 : eapol->default_wep_key_idx = 1;
1193 : }
1194 :
1195 1248 : eapol->cb.eapol_send = cb->eapol_send;
1196 1248 : eapol->cb.aaa_send = cb->aaa_send;
1197 1248 : eapol->cb.finished = cb->finished;
1198 1248 : eapol->cb.get_eap_user = cb->get_eap_user;
1199 1248 : eapol->cb.sta_entry_alive = cb->sta_entry_alive;
1200 1248 : eapol->cb.logger = cb->logger;
1201 1248 : eapol->cb.set_port_authorized = cb->set_port_authorized;
1202 1248 : eapol->cb.abort_auth = cb->abort_auth;
1203 1248 : eapol->cb.tx_key = cb->tx_key;
1204 1248 : eapol->cb.eapol_event = cb->eapol_event;
1205 1248 : eapol->cb.erp_get_key = cb->erp_get_key;
1206 1248 : eapol->cb.erp_add_key = cb->erp_add_key;
1207 :
1208 : /* Acct-Multi-Session-Id should be unique over reboots. If reliable
1209 : * clock is not available, this could be replaced with reboot counter,
1210 : * etc. */
1211 1248 : os_get_time(&now);
1212 1248 : eapol->acct_multi_session_id_hi = now.sec;
1213 :
1214 1248 : return eapol;
1215 : }
1216 :
1217 :
1218 1252 : void eapol_auth_deinit(struct eapol_authenticator *eapol)
1219 : {
1220 1252 : if (eapol == NULL)
1221 1256 : return;
1222 :
1223 1248 : eapol_auth_conf_free(&eapol->conf);
1224 1248 : os_free(eapol->default_wep_key);
1225 1248 : os_free(eapol);
1226 : }
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