Line data Source code
1 : /*
2 : * hostapd / WPA authenticator glue code
3 : * Copyright (c) 2002-2012, 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 "utils/includes.h"
10 :
11 : #include "utils/common.h"
12 : #include "common/ieee802_11_defs.h"
13 : #include "common/sae.h"
14 : #include "eapol_auth/eapol_auth_sm.h"
15 : #include "eapol_auth/eapol_auth_sm_i.h"
16 : #include "eap_server/eap.h"
17 : #include "l2_packet/l2_packet.h"
18 : #include "hostapd.h"
19 : #include "ieee802_1x.h"
20 : #include "preauth_auth.h"
21 : #include "sta_info.h"
22 : #include "tkip_countermeasures.h"
23 : #include "ap_drv_ops.h"
24 : #include "ap_config.h"
25 : #include "wpa_auth.h"
26 : #include "wpa_auth_glue.h"
27 :
28 :
29 868 : static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
30 : struct hostapd_config *iconf,
31 : struct wpa_auth_config *wconf)
32 : {
33 868 : os_memset(wconf, 0, sizeof(*wconf));
34 868 : wconf->wpa = conf->wpa;
35 868 : wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
36 868 : wconf->wpa_pairwise = conf->wpa_pairwise;
37 868 : wconf->wpa_group = conf->wpa_group;
38 868 : wconf->wpa_group_rekey = conf->wpa_group_rekey;
39 868 : wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
40 868 : wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
41 868 : wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
42 868 : wconf->rsn_pairwise = conf->rsn_pairwise;
43 868 : wconf->rsn_preauth = conf->rsn_preauth;
44 868 : wconf->eapol_version = conf->eapol_version;
45 868 : wconf->peerkey = conf->peerkey;
46 868 : wconf->wmm_enabled = conf->wmm_enabled;
47 868 : wconf->wmm_uapsd = conf->wmm_uapsd;
48 868 : wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
49 868 : wconf->okc = conf->okc;
50 : #ifdef CONFIG_IEEE80211W
51 868 : wconf->ieee80211w = conf->ieee80211w;
52 868 : wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
53 : #endif /* CONFIG_IEEE80211W */
54 : #ifdef CONFIG_IEEE80211R
55 868 : wconf->ssid_len = conf->ssid.ssid_len;
56 868 : if (wconf->ssid_len > SSID_LEN)
57 0 : wconf->ssid_len = SSID_LEN;
58 868 : os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
59 868 : os_memcpy(wconf->mobility_domain, conf->mobility_domain,
60 : MOBILITY_DOMAIN_ID_LEN);
61 1126 : if (conf->nas_identifier &&
62 258 : os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
63 258 : wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
64 258 : os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
65 : wconf->r0_key_holder_len);
66 : }
67 868 : os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
68 868 : wconf->r0_key_lifetime = conf->r0_key_lifetime;
69 868 : wconf->reassociation_deadline = conf->reassociation_deadline;
70 868 : wconf->r0kh_list = conf->r0kh_list;
71 868 : wconf->r1kh_list = conf->r1kh_list;
72 868 : wconf->pmk_r1_push = conf->pmk_r1_push;
73 868 : wconf->ft_over_ds = conf->ft_over_ds;
74 : #endif /* CONFIG_IEEE80211R */
75 : #ifdef CONFIG_HS20
76 868 : wconf->disable_gtk = conf->disable_dgaf;
77 868 : if (conf->osen) {
78 1 : wconf->disable_gtk = 1;
79 1 : wconf->wpa = WPA_PROTO_OSEN;
80 1 : wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
81 1 : wconf->wpa_pairwise = 0;
82 1 : wconf->wpa_group = WPA_CIPHER_CCMP;
83 1 : wconf->rsn_pairwise = WPA_CIPHER_CCMP;
84 1 : wconf->rsn_preauth = 0;
85 1 : wconf->disable_pmksa_caching = 1;
86 : #ifdef CONFIG_IEEE80211W
87 1 : wconf->ieee80211w = 1;
88 : #endif /* CONFIG_IEEE80211W */
89 : }
90 : #endif /* CONFIG_HS20 */
91 : #ifdef CONFIG_TESTING_OPTIONS
92 868 : wconf->corrupt_gtk_rekey_mic_probability =
93 868 : iconf->corrupt_gtk_rekey_mic_probability;
94 : #endif /* CONFIG_TESTING_OPTIONS */
95 : #ifdef CONFIG_P2P
96 231 : os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
97 231 : os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
98 231 : os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
99 231 : os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
100 : #endif /* CONFIG_P2P */
101 868 : }
102 :
103 :
104 11998 : static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
105 : logger_level level, const char *txt)
106 : {
107 : #ifndef CONFIG_NO_HOSTAPD_LOGGER
108 11998 : struct hostapd_data *hapd = ctx;
109 : int hlevel;
110 :
111 11998 : switch (level) {
112 : case LOGGER_WARNING:
113 2 : hlevel = HOSTAPD_LEVEL_WARNING;
114 2 : break;
115 : case LOGGER_INFO:
116 1334 : hlevel = HOSTAPD_LEVEL_INFO;
117 1334 : break;
118 : case LOGGER_DEBUG:
119 : default:
120 10662 : hlevel = HOSTAPD_LEVEL_DEBUG;
121 10662 : break;
122 : }
123 :
124 11998 : hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
125 : #endif /* CONFIG_NO_HOSTAPD_LOGGER */
126 11998 : }
127 :
128 :
129 15 : static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
130 : u16 reason)
131 : {
132 15 : struct hostapd_data *hapd = ctx;
133 105 : wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
134 : "STA " MACSTR " reason %d",
135 90 : __func__, MAC2STR(addr), reason);
136 15 : ap_sta_disconnect(hapd, NULL, addr, reason);
137 15 : }
138 :
139 :
140 4 : static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
141 : {
142 4 : struct hostapd_data *hapd = ctx;
143 4 : return michael_mic_failure(hapd, addr, 0);
144 : }
145 :
146 :
147 18075 : static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
148 : wpa_eapol_variable var, int value)
149 : {
150 18075 : struct hostapd_data *hapd = ctx;
151 18075 : struct sta_info *sta = ap_get_sta(hapd, addr);
152 18075 : if (sta == NULL)
153 18075 : return;
154 18075 : switch (var) {
155 : case WPA_EAPOL_portEnabled:
156 4559 : ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
157 4559 : break;
158 : case WPA_EAPOL_portValid:
159 4290 : ieee802_1x_notify_port_valid(sta->eapol_sm, value);
160 4290 : break;
161 : case WPA_EAPOL_authorized:
162 1811 : ieee802_1x_set_sta_authorized(hapd, sta, value);
163 1811 : break;
164 : case WPA_EAPOL_portControl_Auto:
165 1556 : if (sta->eapol_sm)
166 905 : sta->eapol_sm->portControl = Auto;
167 1556 : break;
168 : case WPA_EAPOL_keyRun:
169 632 : if (sta->eapol_sm)
170 632 : sta->eapol_sm->keyRun = value ? TRUE : FALSE;
171 632 : break;
172 : case WPA_EAPOL_keyAvailable:
173 1287 : if (sta->eapol_sm)
174 1258 : sta->eapol_sm->eap_if->eapKeyAvailable =
175 629 : value ? TRUE : FALSE;
176 1287 : break;
177 : case WPA_EAPOL_keyDone:
178 1287 : if (sta->eapol_sm)
179 629 : sta->eapol_sm->keyDone = value ? TRUE : FALSE;
180 1287 : break;
181 : case WPA_EAPOL_inc_EapolFramesTx:
182 2653 : if (sta->eapol_sm)
183 1266 : sta->eapol_sm->dot1xAuthEapolFramesTx++;
184 2653 : break;
185 : }
186 : }
187 :
188 :
189 13198 : static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
190 : wpa_eapol_variable var)
191 : {
192 13198 : struct hostapd_data *hapd = ctx;
193 13198 : struct sta_info *sta = ap_get_sta(hapd, addr);
194 13198 : if (sta == NULL || sta->eapol_sm == NULL)
195 0 : return -1;
196 13198 : switch (var) {
197 : case WPA_EAPOL_keyRun:
198 12566 : return sta->eapol_sm->keyRun;
199 : case WPA_EAPOL_keyAvailable:
200 632 : return sta->eapol_sm->eap_if->eapKeyAvailable;
201 : default:
202 0 : return -1;
203 : }
204 : }
205 :
206 :
207 2020 : static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
208 : const u8 *p2p_dev_addr,
209 : const u8 *prev_psk)
210 : {
211 2020 : struct hostapd_data *hapd = ctx;
212 2020 : struct sta_info *sta = ap_get_sta(hapd, addr);
213 : const u8 *psk;
214 :
215 : #ifdef CONFIG_SAE
216 2020 : if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
217 81 : if (!sta->sae || prev_psk)
218 0 : return NULL;
219 81 : return sta->sae->pmk;
220 : }
221 : #endif /* CONFIG_SAE */
222 :
223 1939 : psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
224 : /*
225 : * This is about to iterate over all psks, prev_psk gives the last
226 : * returned psk which should not be returned again.
227 : * logic list (all hostapd_get_psk; all sta->psk)
228 : */
229 1939 : if (sta && sta->psk && !psk) {
230 : struct hostapd_sta_wpa_psk_short *pos;
231 6 : psk = sta->psk->psk;
232 12 : for (pos = sta->psk; pos; pos = pos->next) {
233 6 : if (pos->psk == prev_psk) {
234 0 : psk = pos->next ? pos->next->psk : NULL;
235 0 : break;
236 : }
237 : }
238 : }
239 1939 : return psk;
240 : }
241 :
242 :
243 615 : static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
244 : size_t *len)
245 : {
246 615 : struct hostapd_data *hapd = ctx;
247 : const u8 *key;
248 : size_t keylen;
249 : struct sta_info *sta;
250 :
251 615 : sta = ap_get_sta(hapd, addr);
252 615 : if (sta == NULL) {
253 0 : wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA");
254 0 : return -1;
255 : }
256 :
257 615 : key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
258 615 : if (key == NULL) {
259 12 : wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p",
260 : sta->eapol_sm);
261 12 : return -1;
262 : }
263 :
264 603 : if (keylen > *len)
265 0 : keylen = *len;
266 603 : os_memcpy(msk, key, keylen);
267 603 : *len = keylen;
268 :
269 603 : return 0;
270 : }
271 :
272 :
273 12887 : static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
274 : const u8 *addr, int idx, u8 *key,
275 : size_t key_len)
276 : {
277 12887 : struct hostapd_data *hapd = ctx;
278 12887 : const char *ifname = hapd->conf->iface;
279 :
280 12887 : if (vlan_id > 0) {
281 10 : ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
282 10 : if (ifname == NULL)
283 0 : return -1;
284 : }
285 :
286 12887 : return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
287 : key, key_len);
288 : }
289 :
290 :
291 1588 : static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
292 : u8 *seq)
293 : {
294 1588 : struct hostapd_data *hapd = ctx;
295 1588 : return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
296 : }
297 :
298 :
299 2653 : static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
300 : const u8 *data, size_t data_len,
301 : int encrypt)
302 : {
303 2653 : struct hostapd_data *hapd = ctx;
304 : struct sta_info *sta;
305 2653 : u32 flags = 0;
306 :
307 : #ifdef CONFIG_TESTING_OPTIONS
308 2653 : if (hapd->ext_eapol_frame_io) {
309 25 : size_t hex_len = 2 * data_len + 1;
310 25 : char *hex = os_malloc(hex_len);
311 :
312 25 : if (hex == NULL)
313 0 : return -1;
314 25 : wpa_snprintf_hex(hex, hex_len, data, data_len);
315 150 : wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
316 150 : MAC2STR(addr), hex);
317 25 : os_free(hex);
318 25 : return 0;
319 : }
320 : #endif /* CONFIG_TESTING_OPTIONS */
321 :
322 2628 : sta = ap_get_sta(hapd, addr);
323 2628 : if (sta)
324 2628 : flags = hostapd_sta_flags_to_drv(sta->flags);
325 :
326 2628 : return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
327 : encrypt, flags);
328 : }
329 :
330 :
331 323 : static int hostapd_wpa_auth_for_each_sta(
332 : void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
333 : void *cb_ctx)
334 : {
335 323 : struct hostapd_data *hapd = ctx;
336 : struct sta_info *sta;
337 :
338 660 : for (sta = hapd->sta_list; sta; sta = sta->next) {
339 346 : if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
340 9 : return 1;
341 : }
342 314 : return 0;
343 : }
344 :
345 :
346 : struct wpa_auth_iface_iter_data {
347 : int (*cb)(struct wpa_authenticator *sm, void *ctx);
348 : void *cb_ctx;
349 : };
350 :
351 6 : static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
352 : {
353 6 : struct wpa_auth_iface_iter_data *data = ctx;
354 : size_t i;
355 6 : for (i = 0; i < iface->num_bss; i++) {
356 12 : if (iface->bss[i]->wpa_auth &&
357 6 : data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
358 6 : return 1;
359 : }
360 0 : return 0;
361 : }
362 :
363 :
364 6 : static int hostapd_wpa_auth_for_each_auth(
365 : void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
366 : void *cb_ctx)
367 : {
368 6 : struct hostapd_data *hapd = ctx;
369 : struct wpa_auth_iface_iter_data data;
370 12 : if (hapd->iface->interfaces == NULL ||
371 6 : hapd->iface->interfaces->for_each_interface == NULL)
372 0 : return -1;
373 6 : data.cb = cb;
374 6 : data.cb_ctx = cb_ctx;
375 12 : return hapd->iface->interfaces->for_each_interface(
376 6 : hapd->iface->interfaces, wpa_auth_iface_iter, &data);
377 : }
378 :
379 :
380 : #ifdef CONFIG_IEEE80211R
381 :
382 : struct wpa_auth_ft_iface_iter_data {
383 : struct hostapd_data *src_hapd;
384 : const u8 *dst;
385 : const u8 *data;
386 : size_t data_len;
387 : };
388 :
389 :
390 378 : static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
391 : {
392 378 : struct wpa_auth_ft_iface_iter_data *idata = ctx;
393 : struct hostapd_data *hapd;
394 : size_t j;
395 :
396 512 : for (j = 0; j < iface->num_bss; j++) {
397 378 : hapd = iface->bss[j];
398 378 : if (hapd == idata->src_hapd)
399 133 : continue;
400 245 : if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
401 2928 : wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
402 : "locally managed BSS " MACSTR "@%s -> "
403 : MACSTR "@%s",
404 1464 : MAC2STR(idata->src_hapd->own_addr),
405 244 : idata->src_hapd->conf->iface,
406 1464 : MAC2STR(hapd->own_addr), hapd->conf->iface);
407 488 : wpa_ft_rrb_rx(hapd->wpa_auth,
408 244 : idata->src_hapd->own_addr,
409 : idata->data, idata->data_len);
410 244 : return 1;
411 : }
412 : }
413 :
414 134 : return 0;
415 : }
416 :
417 : #endif /* CONFIG_IEEE80211R */
418 :
419 :
420 248 : static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
421 : const u8 *data, size_t data_len)
422 : {
423 248 : struct hostapd_data *hapd = ctx;
424 : struct l2_ethhdr *buf;
425 : int ret;
426 :
427 : #ifdef CONFIG_TESTING_OPTIONS
428 248 : if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
429 0 : size_t hex_len = 2 * data_len + 1;
430 0 : char *hex = os_malloc(hex_len);
431 :
432 0 : if (hex == NULL)
433 0 : return -1;
434 0 : wpa_snprintf_hex(hex, hex_len, data, data_len);
435 0 : wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
436 0 : MAC2STR(dst), hex);
437 0 : os_free(hex);
438 0 : return 0;
439 : }
440 : #endif /* CONFIG_TESTING_OPTIONS */
441 :
442 : #ifdef CONFIG_IEEE80211R
443 496 : if (proto == ETH_P_RRB && hapd->iface->interfaces &&
444 248 : hapd->iface->interfaces->for_each_interface) {
445 : int res;
446 : struct wpa_auth_ft_iface_iter_data idata;
447 248 : idata.src_hapd = hapd;
448 248 : idata.dst = dst;
449 248 : idata.data = data;
450 248 : idata.data_len = data_len;
451 496 : res = hapd->iface->interfaces->for_each_interface(
452 248 : hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
453 : &idata);
454 248 : if (res == 1)
455 244 : return data_len;
456 : }
457 : #endif /* CONFIG_IEEE80211R */
458 :
459 4 : if (hapd->driver && hapd->driver->send_ether)
460 0 : return hapd->driver->send_ether(hapd->drv_priv, dst,
461 0 : hapd->own_addr, proto,
462 : data, data_len);
463 4 : if (hapd->l2 == NULL)
464 0 : return -1;
465 :
466 4 : buf = os_malloc(sizeof(*buf) + data_len);
467 4 : if (buf == NULL)
468 0 : return -1;
469 4 : os_memcpy(buf->h_dest, dst, ETH_ALEN);
470 4 : os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
471 4 : buf->h_proto = host_to_be16(proto);
472 4 : os_memcpy(buf + 1, data, data_len);
473 4 : ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
474 : sizeof(*buf) + data_len);
475 4 : os_free(buf);
476 4 : return ret;
477 : }
478 :
479 :
480 : #ifdef CONFIG_IEEE80211R
481 :
482 109 : static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
483 : const u8 *data, size_t data_len)
484 : {
485 109 : struct hostapd_data *hapd = ctx;
486 : int res;
487 : struct ieee80211_mgmt *m;
488 : size_t mlen;
489 : struct sta_info *sta;
490 :
491 109 : sta = ap_get_sta(hapd, dst);
492 109 : if (sta == NULL || sta->wpa_sm == NULL)
493 0 : return -1;
494 :
495 109 : m = os_zalloc(sizeof(*m) + data_len);
496 109 : if (m == NULL)
497 0 : return -1;
498 109 : mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
499 109 : m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
500 : WLAN_FC_STYPE_ACTION);
501 109 : os_memcpy(m->da, dst, ETH_ALEN);
502 109 : os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
503 109 : os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
504 109 : os_memcpy(&m->u, data, data_len);
505 :
506 109 : res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
507 109 : os_free(m);
508 109 : return res;
509 : }
510 :
511 :
512 : static struct wpa_state_machine *
513 113 : hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
514 : {
515 113 : struct hostapd_data *hapd = ctx;
516 : struct sta_info *sta;
517 :
518 113 : if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
519 0 : return NULL;
520 :
521 113 : sta = ap_sta_add(hapd, sta_addr);
522 113 : if (sta == NULL)
523 0 : return NULL;
524 113 : if (sta->wpa_sm) {
525 103 : sta->auth_alg = WLAN_AUTH_FT;
526 103 : return sta->wpa_sm;
527 : }
528 :
529 10 : sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
530 10 : if (sta->wpa_sm == NULL) {
531 0 : ap_free_sta(hapd, sta);
532 0 : return NULL;
533 : }
534 10 : sta->auth_alg = WLAN_AUTH_FT;
535 :
536 10 : return sta->wpa_sm;
537 : }
538 :
539 :
540 1 : static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
541 : size_t len)
542 : {
543 1 : struct hostapd_data *hapd = ctx;
544 : struct l2_ethhdr *ethhdr;
545 1 : if (len < sizeof(*ethhdr))
546 1 : return;
547 1 : ethhdr = (struct l2_ethhdr *) buf;
548 12 : wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
549 12 : MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
550 1 : wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
551 : len - sizeof(*ethhdr));
552 : }
553 :
554 :
555 0 : static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
556 : u8 *tspec_ie, size_t tspec_ielen)
557 : {
558 0 : struct hostapd_data *hapd = ctx;
559 0 : return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
560 : }
561 :
562 : #endif /* CONFIG_IEEE80211R */
563 :
564 :
565 866 : int hostapd_setup_wpa(struct hostapd_data *hapd)
566 : {
567 : struct wpa_auth_config _conf;
568 : struct wpa_auth_callbacks cb;
569 : const u8 *wpa_ie;
570 : size_t wpa_ie_len;
571 :
572 866 : hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
573 866 : if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
574 866 : _conf.tx_status = 1;
575 866 : if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
576 866 : _conf.ap_mlme = 1;
577 866 : os_memset(&cb, 0, sizeof(cb));
578 866 : cb.ctx = hapd;
579 866 : cb.logger = hostapd_wpa_auth_logger;
580 866 : cb.disconnect = hostapd_wpa_auth_disconnect;
581 866 : cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
582 866 : cb.set_eapol = hostapd_wpa_auth_set_eapol;
583 866 : cb.get_eapol = hostapd_wpa_auth_get_eapol;
584 866 : cb.get_psk = hostapd_wpa_auth_get_psk;
585 866 : cb.get_msk = hostapd_wpa_auth_get_msk;
586 866 : cb.set_key = hostapd_wpa_auth_set_key;
587 866 : cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
588 866 : cb.send_eapol = hostapd_wpa_auth_send_eapol;
589 866 : cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
590 866 : cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
591 866 : cb.send_ether = hostapd_wpa_auth_send_ether;
592 : #ifdef CONFIG_IEEE80211R
593 866 : cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
594 866 : cb.add_sta = hostapd_wpa_auth_add_sta;
595 866 : cb.add_tspec = hostapd_wpa_auth_add_tspec;
596 : #endif /* CONFIG_IEEE80211R */
597 866 : hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
598 866 : if (hapd->wpa_auth == NULL) {
599 0 : wpa_printf(MSG_ERROR, "WPA initialization failed.");
600 0 : return -1;
601 : }
602 :
603 866 : if (hostapd_set_privacy(hapd, 1)) {
604 0 : wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
605 0 : "for interface %s", hapd->conf->iface);
606 0 : return -1;
607 : }
608 :
609 866 : wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
610 866 : if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
611 0 : wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
612 : "the kernel driver.");
613 0 : return -1;
614 : }
615 :
616 866 : if (rsn_preauth_iface_init(hapd)) {
617 0 : wpa_printf(MSG_ERROR, "Initialization of RSN "
618 : "pre-authentication failed.");
619 0 : return -1;
620 : }
621 :
622 : #ifdef CONFIG_IEEE80211R
623 866 : if (!hostapd_drv_none(hapd)) {
624 1732 : hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
625 11 : hapd->conf->bridge :
626 855 : hapd->conf->iface, NULL, ETH_P_RRB,
627 : hostapd_rrb_receive, hapd, 1);
628 866 : if (hapd->l2 == NULL &&
629 0 : (hapd->driver == NULL ||
630 0 : hapd->driver->send_ether == NULL)) {
631 0 : wpa_printf(MSG_ERROR, "Failed to open l2_packet "
632 : "interface");
633 0 : return -1;
634 : }
635 : }
636 : #endif /* CONFIG_IEEE80211R */
637 :
638 866 : return 0;
639 :
640 : }
641 :
642 :
643 2 : void hostapd_reconfig_wpa(struct hostapd_data *hapd)
644 : {
645 : struct wpa_auth_config wpa_auth_conf;
646 2 : hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
647 2 : wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
648 2 : }
649 :
650 :
651 1252 : void hostapd_deinit_wpa(struct hostapd_data *hapd)
652 : {
653 1252 : ieee80211_tkip_countermeasures_deinit(hapd);
654 1252 : rsn_preauth_iface_deinit(hapd);
655 1252 : if (hapd->wpa_auth) {
656 872 : wpa_deinit(hapd->wpa_auth);
657 872 : hapd->wpa_auth = NULL;
658 :
659 872 : if (hostapd_set_privacy(hapd, 0)) {
660 0 : wpa_printf(MSG_DEBUG, "Could not disable "
661 : "PrivacyInvoked for interface %s",
662 0 : hapd->conf->iface);
663 : }
664 :
665 872 : if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
666 0 : wpa_printf(MSG_DEBUG, "Could not remove generic "
667 : "information element from interface %s",
668 0 : hapd->conf->iface);
669 : }
670 : }
671 1252 : ieee802_1x_deinit(hapd);
672 :
673 : #ifdef CONFIG_IEEE80211R
674 1252 : l2_packet_deinit(hapd->l2);
675 1252 : hapd->l2 = NULL;
676 : #endif /* CONFIG_IEEE80211R */
677 1252 : }
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