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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * hostapd / IEEE 802.11 Management | |
d9a38716 | 3 | * Copyright (c) 2002-2012, 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 | ||
1057d78e | 9 | #include "utils/includes.h" |
6fc6879b JM |
10 | |
11 | #ifndef CONFIG_NATIVE_WINDOWS | |
12 | ||
1057d78e JM |
13 | #include "utils/common.h" |
14 | #include "utils/eloop.h" | |
03da66bd | 15 | #include "crypto/crypto.h" |
d136c376 JM |
16 | #include "crypto/sha256.h" |
17 | #include "crypto/random.h" | |
2ce86d9d | 18 | #include "drivers/driver.h" |
81f4f619 JM |
19 | #include "common/ieee802_11_defs.h" |
20 | #include "common/ieee802_11_common.h" | |
03da66bd | 21 | #include "common/wpa_ctrl.h" |
98efcc41 | 22 | #include "common/sae.h" |
03da66bd JM |
23 | #include "radius/radius.h" |
24 | #include "radius/radius_client.h" | |
e44f8bf2 | 25 | #include "p2p/p2p.h" |
ed7a09f9 | 26 | #include "wps/wps.h" |
6fc6879b | 27 | #include "hostapd.h" |
6fc6879b | 28 | #include "beacon.h" |
6fc6879b JM |
29 | #include "ieee802_11_auth.h" |
30 | #include "sta_info.h" | |
6fc6879b | 31 | #include "ieee802_1x.h" |
6226e38d | 32 | #include "wpa_auth.h" |
1057d78e | 33 | #include "wmm.h" |
6fc6879b JM |
34 | #include "ap_list.h" |
35 | #include "accounting.h" | |
6226e38d JM |
36 | #include "ap_config.h" |
37 | #include "ap_mlme.h" | |
dce044cc | 38 | #include "p2p_hostapd.h" |
cee7d66b | 39 | #include "ap_drv_ops.h" |
c79938a5 | 40 | #include "wnm_ap.h" |
6226e38d | 41 | #include "ieee802_11.h" |
6fc6879b JM |
42 | |
43 | ||
44 | u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
45 | { | |
46 | u8 *pos = eid; | |
47 | int i, num, count; | |
48 | ||
49 | if (hapd->iface->current_rates == NULL) | |
50 | return eid; | |
51 | ||
52 | *pos++ = WLAN_EID_SUPP_RATES; | |
53 | num = hapd->iface->num_rates; | |
29448243 JM |
54 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
55 | num++; | |
202d97d4 JB |
56 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
57 | num++; | |
6fc6879b JM |
58 | if (num > 8) { |
59 | /* rest of the rates are encoded in Extended supported | |
60 | * rates element */ | |
61 | num = 8; | |
62 | } | |
63 | ||
64 | *pos++ = num; | |
65 | count = 0; | |
66 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num; | |
67 | i++) { | |
68 | count++; | |
69 | *pos = hapd->iface->current_rates[i].rate / 5; | |
70 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
71 | *pos |= 0x80; | |
72 | pos++; | |
73 | } | |
74 | ||
202d97d4 JB |
75 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) { |
76 | count++; | |
29448243 | 77 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; |
202d97d4 JB |
78 | } |
79 | ||
80 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) { | |
81 | count++; | |
82 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
83 | } | |
29448243 | 84 | |
6fc6879b JM |
85 | return pos; |
86 | } | |
87 | ||
88 | ||
89 | u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
90 | { | |
91 | u8 *pos = eid; | |
92 | int i, num, count; | |
93 | ||
94 | if (hapd->iface->current_rates == NULL) | |
95 | return eid; | |
96 | ||
97 | num = hapd->iface->num_rates; | |
29448243 JM |
98 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
99 | num++; | |
202d97d4 JB |
100 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
101 | num++; | |
6fc6879b JM |
102 | if (num <= 8) |
103 | return eid; | |
104 | num -= 8; | |
105 | ||
106 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
107 | *pos++ = num; | |
108 | count = 0; | |
109 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; | |
110 | i++) { | |
111 | count++; | |
112 | if (count <= 8) | |
113 | continue; /* already in SuppRates IE */ | |
114 | *pos = hapd->iface->current_rates[i].rate / 5; | |
115 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
116 | *pos |= 0x80; | |
117 | pos++; | |
118 | } | |
119 | ||
202d97d4 JB |
120 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) { |
121 | count++; | |
122 | if (count > 8) | |
123 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; | |
124 | } | |
125 | ||
126 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) { | |
127 | count++; | |
128 | if (count > 8) | |
129 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
130 | } | |
29448243 | 131 | |
6fc6879b JM |
132 | return pos; |
133 | } | |
134 | ||
135 | ||
136 | u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta, | |
137 | int probe) | |
138 | { | |
139 | int capab = WLAN_CAPABILITY_ESS; | |
140 | int privacy; | |
141 | ||
142 | if (hapd->iface->num_sta_no_short_preamble == 0 && | |
143 | hapd->iconf->preamble == SHORT_PREAMBLE) | |
144 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
145 | ||
146 | privacy = hapd->conf->ssid.wep.keys_set; | |
147 | ||
148 | if (hapd->conf->ieee802_1x && | |
149 | (hapd->conf->default_wep_key_len || | |
150 | hapd->conf->individual_wep_key_len)) | |
151 | privacy = 1; | |
152 | ||
153 | if (hapd->conf->wpa) | |
154 | privacy = 1; | |
155 | ||
156 | if (sta) { | |
157 | int policy, def_klen; | |
158 | if (probe && sta->ssid_probe) { | |
159 | policy = sta->ssid_probe->security_policy; | |
160 | def_klen = sta->ssid_probe->wep.default_len; | |
161 | } else { | |
162 | policy = sta->ssid->security_policy; | |
163 | def_klen = sta->ssid->wep.default_len; | |
164 | } | |
165 | privacy = policy != SECURITY_PLAINTEXT; | |
166 | if (policy == SECURITY_IEEE_802_1X && def_klen == 0) | |
167 | privacy = 0; | |
168 | } | |
169 | ||
170 | if (privacy) | |
171 | capab |= WLAN_CAPABILITY_PRIVACY; | |
172 | ||
173 | if (hapd->iface->current_mode && | |
174 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && | |
175 | hapd->iface->num_sta_no_short_slot_time == 0) | |
176 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
177 | ||
6fc6879b JM |
178 | return capab; |
179 | } | |
180 | ||
181 | ||
6fc6879b JM |
182 | void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len) |
183 | { | |
184 | int i; | |
185 | if (len > HOSTAPD_MAX_SSID_LEN) | |
186 | len = HOSTAPD_MAX_SSID_LEN; | |
187 | for (i = 0; i < len; i++) { | |
188 | if (ssid[i] >= 32 && ssid[i] < 127) | |
189 | buf[i] = ssid[i]; | |
190 | else | |
191 | buf[i] = '.'; | |
192 | } | |
193 | buf[len] = '\0'; | |
194 | } | |
195 | ||
196 | ||
6fc6879b | 197 | static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c JM |
198 | u16 auth_transaction, const u8 *challenge, |
199 | int iswep) | |
6fc6879b JM |
200 | { |
201 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
202 | HOSTAPD_LEVEL_DEBUG, | |
203 | "authentication (shared key, transaction %d)", | |
204 | auth_transaction); | |
205 | ||
206 | if (auth_transaction == 1) { | |
207 | if (!sta->challenge) { | |
208 | /* Generate a pseudo-random challenge */ | |
209 | u8 key[8]; | |
0b04889f | 210 | struct os_time now; |
6fc6879b JM |
211 | int r; |
212 | sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); | |
213 | if (sta->challenge == NULL) | |
214 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
215 | ||
0b04889f PE |
216 | os_get_time(&now); |
217 | r = os_random(); | |
218 | os_memcpy(key, &now.sec, 4); | |
6fc6879b | 219 | os_memcpy(key + 4, &r, 4); |
8ef16831 JM |
220 | rc4_skip(key, sizeof(key), 0, |
221 | sta->challenge, WLAN_AUTH_CHALLENGE_LEN); | |
6fc6879b JM |
222 | } |
223 | return 0; | |
224 | } | |
225 | ||
226 | if (auth_transaction != 3) | |
227 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
228 | ||
229 | /* Transaction 3 */ | |
230 | if (!iswep || !sta->challenge || !challenge || | |
231 | os_memcmp(sta->challenge, challenge, WLAN_AUTH_CHALLENGE_LEN)) { | |
232 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
233 | HOSTAPD_LEVEL_INFO, | |
234 | "shared key authentication - invalid " | |
235 | "challenge-response"); | |
236 | return WLAN_STATUS_CHALLENGE_FAIL; | |
237 | } | |
238 | ||
239 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
240 | HOSTAPD_LEVEL_DEBUG, | |
241 | "authentication OK (shared key)"); | |
242 | #ifdef IEEE80211_REQUIRE_AUTH_ACK | |
243 | /* Station will be marked authenticated if it ACKs the | |
244 | * authentication reply. */ | |
245 | #else | |
246 | sta->flags |= WLAN_STA_AUTH; | |
247 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
248 | #endif | |
249 | os_free(sta->challenge); | |
250 | sta->challenge = NULL; | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
255 | ||
256 | static void send_auth_reply(struct hostapd_data *hapd, | |
257 | const u8 *dst, const u8 *bssid, | |
258 | u16 auth_alg, u16 auth_transaction, u16 resp, | |
259 | const u8 *ies, size_t ies_len) | |
260 | { | |
261 | struct ieee80211_mgmt *reply; | |
262 | u8 *buf; | |
263 | size_t rlen; | |
264 | ||
265 | rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; | |
266 | buf = os_zalloc(rlen); | |
267 | if (buf == NULL) | |
268 | return; | |
269 | ||
270 | reply = (struct ieee80211_mgmt *) buf; | |
271 | reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
272 | WLAN_FC_STYPE_AUTH); | |
6fc6879b JM |
273 | os_memcpy(reply->da, dst, ETH_ALEN); |
274 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
275 | os_memcpy(reply->bssid, bssid, ETH_ALEN); | |
276 | ||
277 | reply->u.auth.auth_alg = host_to_le16(auth_alg); | |
278 | reply->u.auth.auth_transaction = host_to_le16(auth_transaction); | |
279 | reply->u.auth.status_code = host_to_le16(resp); | |
280 | ||
281 | if (ies && ies_len) | |
282 | os_memcpy(reply->u.auth.variable, ies, ies_len); | |
283 | ||
284 | wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR | |
285 | " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)", | |
286 | MAC2STR(dst), auth_alg, auth_transaction, | |
287 | resp, (unsigned long) ies_len); | |
8cfa3527 | 288 | if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0) |
6fc6879b JM |
289 | perror("send_auth_reply: send"); |
290 | ||
291 | os_free(buf); | |
292 | } | |
293 | ||
294 | ||
295 | #ifdef CONFIG_IEEE80211R | |
296 | static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, | |
297 | u16 auth_transaction, u16 status, | |
298 | const u8 *ies, size_t ies_len) | |
299 | { | |
300 | struct hostapd_data *hapd = ctx; | |
301 | struct sta_info *sta; | |
302 | ||
303 | send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, auth_transaction, | |
304 | status, ies, ies_len); | |
305 | ||
306 | if (status != WLAN_STATUS_SUCCESS) | |
307 | return; | |
308 | ||
309 | sta = ap_get_sta(hapd, dst); | |
310 | if (sta == NULL) | |
311 | return; | |
312 | ||
313 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, | |
314 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
315 | sta->flags |= WLAN_STA_AUTH; | |
316 | mlme_authenticate_indication(hapd, sta); | |
317 | } | |
318 | #endif /* CONFIG_IEEE80211R */ | |
319 | ||
320 | ||
c10347f2 | 321 | #ifdef CONFIG_SAE |
21af6d15 | 322 | |
146f6c9a JM |
323 | static struct wpabuf * auth_process_sae_commit(struct hostapd_data *hapd, |
324 | struct sta_info *sta) | |
21af6d15 JM |
325 | { |
326 | struct wpabuf *buf; | |
327 | ||
146f6c9a JM |
328 | if (hapd->conf->ssid.wpa_passphrase == NULL) { |
329 | wpa_printf(MSG_DEBUG, "SAE: No password available"); | |
330 | return NULL; | |
331 | } | |
332 | ||
8e31e955 JM |
333 | if (sae_prepare_commit(hapd->own_addr, sta->addr, |
334 | (u8 *) hapd->conf->ssid.wpa_passphrase, | |
335 | os_strlen(hapd->conf->ssid.wpa_passphrase), | |
336 | sta->sae) < 0) { | |
337 | wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE"); | |
21af6d15 | 338 | return NULL; |
8e31e955 | 339 | } |
21af6d15 | 340 | |
146f6c9a JM |
341 | if (sae_process_commit(sta->sae) < 0) { |
342 | wpa_printf(MSG_DEBUG, "SAE: Failed to process peer commit"); | |
343 | return NULL; | |
344 | } | |
345 | ||
8e31e955 JM |
346 | buf = wpabuf_alloc(SAE_COMMIT_MAX_LEN); |
347 | if (buf == NULL) | |
348 | return NULL; | |
d136c376 | 349 | sae_write_commit(sta->sae, buf, NULL); |
21af6d15 JM |
350 | |
351 | return buf; | |
352 | } | |
353 | ||
354 | ||
355 | static struct wpabuf * auth_build_sae_confirm(struct hostapd_data *hapd, | |
356 | struct sta_info *sta) | |
357 | { | |
358 | struct wpabuf *buf; | |
359 | ||
fb8fcc29 | 360 | buf = wpabuf_alloc(SAE_CONFIRM_MAX_LEN); |
21af6d15 JM |
361 | if (buf == NULL) |
362 | return NULL; | |
363 | ||
fb8fcc29 | 364 | sae_write_confirm(sta->sae, buf); |
21af6d15 JM |
365 | |
366 | return buf; | |
367 | } | |
368 | ||
369 | ||
d136c376 JM |
370 | static int use_sae_anti_clogging(struct hostapd_data *hapd) |
371 | { | |
372 | struct sta_info *sta; | |
373 | unsigned int open = 0; | |
374 | ||
375 | if (hapd->conf->sae_anti_clogging_threshold == 0) | |
376 | return 1; | |
377 | ||
378 | for (sta = hapd->sta_list; sta; sta = sta->next) { | |
379 | if (!sta->sae) | |
380 | continue; | |
381 | if (sta->sae->state != SAE_COMMITTED && | |
382 | sta->sae->state != SAE_CONFIRMED) | |
383 | continue; | |
384 | open++; | |
385 | if (open >= hapd->conf->sae_anti_clogging_threshold) | |
386 | return 1; | |
387 | } | |
388 | ||
389 | return 0; | |
390 | } | |
391 | ||
392 | ||
393 | static int check_sae_token(struct hostapd_data *hapd, const u8 *addr, | |
394 | const u8 *token, size_t token_len) | |
395 | { | |
396 | u8 mac[SHA256_MAC_LEN]; | |
397 | ||
398 | if (token_len != SHA256_MAC_LEN) | |
399 | return -1; | |
400 | if (hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
401 | addr, ETH_ALEN, mac) < 0 || | |
402 | os_memcmp(token, mac, SHA256_MAC_LEN) != 0) | |
403 | return -1; | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | ||
409 | static struct wpabuf * auth_build_token_req(struct hostapd_data *hapd, | |
410 | const u8 *addr) | |
411 | { | |
412 | struct wpabuf *buf; | |
413 | u8 *token; | |
414 | struct os_time t; | |
415 | ||
416 | os_get_time(&t); | |
417 | if (hapd->last_sae_token_key_update == 0 || | |
418 | t.sec > hapd->last_sae_token_key_update + 60) { | |
419 | random_get_bytes(hapd->sae_token_key, | |
420 | sizeof(hapd->sae_token_key)); | |
421 | wpa_hexdump(MSG_DEBUG, "SAE: Updated token key", | |
422 | hapd->sae_token_key, sizeof(hapd->sae_token_key)); | |
423 | hapd->last_sae_token_key_update = t.sec; | |
424 | } | |
425 | ||
426 | buf = wpabuf_alloc(SHA256_MAC_LEN); | |
427 | if (buf == NULL) | |
428 | return NULL; | |
429 | ||
430 | token = wpabuf_put(buf, SHA256_MAC_LEN); | |
431 | hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
432 | addr, ETH_ALEN, token); | |
433 | ||
434 | return buf; | |
435 | } | |
436 | ||
437 | ||
c10347f2 JM |
438 | static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta, |
439 | const struct ieee80211_mgmt *mgmt, size_t len, | |
440 | u8 auth_transaction) | |
441 | { | |
442 | u16 resp = WLAN_STATUS_SUCCESS; | |
750efe6e | 443 | struct wpabuf *data = NULL; |
c10347f2 | 444 | |
98efcc41 | 445 | if (!sta->sae) { |
d136c376 JM |
446 | if (auth_transaction != 1) |
447 | return; | |
98efcc41 JM |
448 | sta->sae = os_zalloc(sizeof(*sta->sae)); |
449 | if (sta->sae == NULL) | |
450 | return; | |
dd43026a | 451 | sta->sae->state = SAE_NOTHING; |
98efcc41 JM |
452 | } |
453 | ||
c10347f2 | 454 | if (auth_transaction == 1) { |
d136c376 JM |
455 | const u8 *token = NULL; |
456 | size_t token_len = 0; | |
c10347f2 JM |
457 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
458 | HOSTAPD_LEVEL_DEBUG, | |
459 | "start SAE authentication (RX commit)"); | |
146f6c9a JM |
460 | resp = sae_parse_commit(sta->sae, mgmt->u.auth.variable, |
461 | ((const u8 *) mgmt) + len - | |
d136c376 | 462 | mgmt->u.auth.variable, &token, |
625f202a | 463 | &token_len, hapd->conf->sae_groups); |
d136c376 JM |
464 | if (token && check_sae_token(hapd, sta->addr, token, token_len) |
465 | < 0) { | |
466 | wpa_printf(MSG_DEBUG, "SAE: Drop commit message with " | |
467 | "incorrect token from " MACSTR, | |
468 | MAC2STR(sta->addr)); | |
469 | return; | |
470 | } | |
471 | ||
750efe6e | 472 | if (resp == WLAN_STATUS_SUCCESS) { |
d136c376 JM |
473 | if (!token && use_sae_anti_clogging(hapd)) { |
474 | wpa_printf(MSG_DEBUG, "SAE: Request anti-" | |
475 | "clogging token from " MACSTR, | |
476 | MAC2STR(sta->addr)); | |
477 | data = auth_build_token_req(hapd, sta->addr); | |
478 | resp = WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ; | |
479 | } else { | |
480 | data = auth_process_sae_commit(hapd, sta); | |
481 | if (data == NULL) | |
482 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
483 | else | |
484 | sta->sae->state = SAE_COMMITTED; | |
485 | } | |
750efe6e | 486 | } |
c10347f2 | 487 | } else if (auth_transaction == 2) { |
dd43026a | 488 | if (sta->sae->state != SAE_COMMITTED) { |
c10347f2 JM |
489 | hostapd_logger(hapd, sta->addr, |
490 | HOSTAPD_MODULE_IEEE80211, | |
491 | HOSTAPD_LEVEL_DEBUG, | |
492 | "SAE confirm before commit"); | |
493 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
494 | } | |
495 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
496 | HOSTAPD_LEVEL_DEBUG, | |
497 | "SAE authentication (RX confirm)"); | |
f2e9818f JM |
498 | if (sae_check_confirm(sta->sae, mgmt->u.auth.variable, |
499 | ((u8 *) mgmt) + len - | |
500 | mgmt->u.auth.variable) < 0) { | |
501 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
502 | } else { | |
503 | resp = WLAN_STATUS_SUCCESS; | |
21af6d15 JM |
504 | sta->flags |= WLAN_STA_AUTH; |
505 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
506 | sta->auth_alg = WLAN_AUTH_SAE; | |
507 | mlme_authenticate_indication(hapd, sta); | |
750efe6e JM |
508 | |
509 | data = auth_build_sae_confirm(hapd, sta); | |
510 | if (data == NULL) | |
511 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
dd43026a JM |
512 | else |
513 | sta->sae->state = SAE_ACCEPTED; | |
21af6d15 | 514 | } |
c10347f2 JM |
515 | } else { |
516 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
517 | HOSTAPD_LEVEL_DEBUG, | |
518 | "unexpected SAE authentication transaction %u", | |
519 | auth_transaction); | |
520 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
521 | } | |
522 | ||
523 | sta->auth_alg = WLAN_AUTH_SAE; | |
524 | ||
525 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
21af6d15 JM |
526 | auth_transaction, resp, |
527 | data ? wpabuf_head(data) : (u8 *) "", | |
528 | data ? wpabuf_len(data) : 0); | |
529 | wpabuf_free(data); | |
c10347f2 JM |
530 | } |
531 | #endif /* CONFIG_SAE */ | |
532 | ||
533 | ||
b57e086c JM |
534 | static void handle_auth(struct hostapd_data *hapd, |
535 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b JM |
536 | { |
537 | u16 auth_alg, auth_transaction, status_code; | |
538 | u16 resp = WLAN_STATUS_SUCCESS; | |
539 | struct sta_info *sta = NULL; | |
540 | int res; | |
541 | u16 fc; | |
b57e086c | 542 | const u8 *challenge = NULL; |
6fc6879b JM |
543 | u32 session_timeout, acct_interim_interval; |
544 | int vlan_id = 0; | |
2ad3e6c8 | 545 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
6fc6879b JM |
546 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; |
547 | size_t resp_ies_len = 0; | |
2092597f MB |
548 | char *identity = NULL; |
549 | char *radius_cui = NULL; | |
6fc6879b JM |
550 | |
551 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
552 | printf("handle_auth - too short payload (len=%lu)\n", | |
553 | (unsigned long) len); | |
554 | return; | |
555 | } | |
556 | ||
557 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
558 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
559 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
560 | fc = le_to_host16(mgmt->frame_control); | |
561 | ||
562 | if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + | |
563 | 2 + WLAN_AUTH_CHALLENGE_LEN && | |
564 | mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && | |
565 | mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) | |
566 | challenge = &mgmt->u.auth.variable[2]; | |
567 | ||
568 | wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " | |
569 | "auth_transaction=%d status_code=%d wep=%d%s", | |
570 | MAC2STR(mgmt->sa), auth_alg, auth_transaction, | |
571 | status_code, !!(fc & WLAN_FC_ISWEP), | |
572 | challenge ? " challenge" : ""); | |
573 | ||
6fc6879b JM |
574 | if (hapd->tkip_countermeasures) { |
575 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
576 | goto fail; | |
577 | } | |
578 | ||
579 | if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && | |
580 | auth_alg == WLAN_AUTH_OPEN) || | |
581 | #ifdef CONFIG_IEEE80211R | |
0bf927a0 | 582 | (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && |
6fc6879b JM |
583 | auth_alg == WLAN_AUTH_FT) || |
584 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
585 | #ifdef CONFIG_SAE |
586 | (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && | |
587 | auth_alg == WLAN_AUTH_SAE) || | |
588 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
589 | ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && |
590 | auth_alg == WLAN_AUTH_SHARED_KEY))) { | |
591 | printf("Unsupported authentication algorithm (%d)\n", | |
592 | auth_alg); | |
593 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
594 | goto fail; | |
595 | } | |
596 | ||
c10347f2 | 597 | if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE || |
6fc6879b JM |
598 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { |
599 | printf("Unknown authentication transaction number (%d)\n", | |
600 | auth_transaction); | |
601 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
602 | goto fail; | |
603 | } | |
604 | ||
605 | if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { | |
606 | printf("Station " MACSTR " not allowed to authenticate.\n", | |
607 | MAC2STR(mgmt->sa)); | |
608 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
609 | goto fail; | |
610 | } | |
611 | ||
612 | res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len, | |
613 | &session_timeout, | |
05ab9712 | 614 | &acct_interim_interval, &vlan_id, |
2ad3e6c8 | 615 | &psk, &identity, &radius_cui); |
05ab9712 | 616 | |
6fc6879b JM |
617 | if (res == HOSTAPD_ACL_REJECT) { |
618 | printf("Station " MACSTR " not allowed to authenticate.\n", | |
619 | MAC2STR(mgmt->sa)); | |
620 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
621 | goto fail; | |
622 | } | |
623 | if (res == HOSTAPD_ACL_PENDING) { | |
624 | wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR | |
625 | " waiting for an external authentication", | |
626 | MAC2STR(mgmt->sa)); | |
627 | /* Authentication code will re-send the authentication frame | |
628 | * after it has received (and cached) information from the | |
629 | * external source. */ | |
630 | return; | |
631 | } | |
632 | ||
633 | sta = ap_sta_add(hapd, mgmt->sa); | |
634 | if (!sta) { | |
635 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
636 | goto fail; | |
637 | } | |
638 | ||
639 | if (vlan_id > 0) { | |
640 | if (hostapd_get_vlan_id_ifname(hapd->conf->vlan, | |
1066c1ee | 641 | vlan_id) == NULL) { |
6fc6879b JM |
642 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, |
643 | HOSTAPD_LEVEL_INFO, "Invalid VLAN ID " | |
644 | "%d received from RADIUS server", | |
645 | vlan_id); | |
646 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
647 | goto fail; | |
648 | } | |
649 | sta->vlan_id = vlan_id; | |
650 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
651 | HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); | |
652 | } | |
653 | ||
f2a14be7 | 654 | hostapd_free_psk_list(sta->psk); |
5ee56c4e MB |
655 | if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) { |
656 | sta->psk = psk; | |
657 | psk = NULL; | |
05ab9712 | 658 | } else { |
05ab9712 MB |
659 | sta->psk = NULL; |
660 | } | |
661 | ||
2092597f MB |
662 | sta->identity = identity; |
663 | identity = NULL; | |
664 | sta->radius_cui = radius_cui; | |
665 | radius_cui = NULL; | |
666 | ||
6fc6879b JM |
667 | sta->flags &= ~WLAN_STA_PREAUTH; |
668 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
669 | ||
5843e1c9 | 670 | if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) |
6fc6879b JM |
671 | sta->acct_interim_interval = acct_interim_interval; |
672 | if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) | |
673 | ap_sta_session_timeout(hapd, sta, session_timeout); | |
674 | else | |
675 | ap_sta_no_session_timeout(hapd, sta); | |
676 | ||
677 | switch (auth_alg) { | |
678 | case WLAN_AUTH_OPEN: | |
679 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
680 | HOSTAPD_LEVEL_DEBUG, | |
681 | "authentication OK (open system)"); | |
682 | #ifdef IEEE80211_REQUIRE_AUTH_ACK | |
683 | /* Station will be marked authenticated if it ACKs the | |
684 | * authentication reply. */ | |
685 | #else | |
686 | sta->flags |= WLAN_STA_AUTH; | |
687 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
688 | sta->auth_alg = WLAN_AUTH_OPEN; | |
689 | mlme_authenticate_indication(hapd, sta); | |
690 | #endif | |
691 | break; | |
692 | case WLAN_AUTH_SHARED_KEY: | |
693 | resp = auth_shared_key(hapd, sta, auth_transaction, challenge, | |
694 | fc & WLAN_FC_ISWEP); | |
695 | sta->auth_alg = WLAN_AUTH_SHARED_KEY; | |
696 | mlme_authenticate_indication(hapd, sta); | |
697 | if (sta->challenge && auth_transaction == 1) { | |
698 | resp_ies[0] = WLAN_EID_CHALLENGE; | |
699 | resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; | |
700 | os_memcpy(resp_ies + 2, sta->challenge, | |
701 | WLAN_AUTH_CHALLENGE_LEN); | |
702 | resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; | |
703 | } | |
704 | break; | |
705 | #ifdef CONFIG_IEEE80211R | |
706 | case WLAN_AUTH_FT: | |
707 | sta->auth_alg = WLAN_AUTH_FT; | |
708 | if (sta->wpa_sm == NULL) | |
709 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
710 | sta->addr); | |
711 | if (sta->wpa_sm == NULL) { | |
712 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
713 | "state machine"); | |
714 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
715 | goto fail; | |
716 | } | |
717 | wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, | |
718 | auth_transaction, mgmt->u.auth.variable, | |
719 | len - IEEE80211_HDRLEN - | |
720 | sizeof(mgmt->u.auth), | |
721 | handle_auth_ft_finish, hapd); | |
722 | /* handle_auth_ft_finish() callback will complete auth. */ | |
723 | return; | |
724 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
725 | #ifdef CONFIG_SAE |
726 | case WLAN_AUTH_SAE: | |
727 | handle_auth_sae(hapd, sta, mgmt, len, auth_transaction); | |
728 | return; | |
729 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
730 | } |
731 | ||
732 | fail: | |
2092597f MB |
733 | os_free(identity); |
734 | os_free(radius_cui); | |
f2a14be7 | 735 | hostapd_free_psk_list(psk); |
2092597f | 736 | |
6fc6879b JM |
737 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, |
738 | auth_transaction + 1, resp, resp_ies, resp_ies_len); | |
739 | } | |
740 | ||
741 | ||
d42a62b3 JM |
742 | static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) |
743 | { | |
2991469c JM |
744 | int i, j = 32, aid; |
745 | ||
d42a62b3 JM |
746 | /* get a unique AID */ |
747 | if (sta->aid > 0) { | |
748 | wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); | |
749 | return 0; | |
750 | } | |
751 | ||
2991469c JM |
752 | for (i = 0; i < AID_WORDS; i++) { |
753 | if (hapd->sta_aid[i] == (u32) -1) | |
754 | continue; | |
755 | for (j = 0; j < 32; j++) { | |
756 | if (!(hapd->sta_aid[i] & BIT(j))) | |
757 | break; | |
758 | } | |
759 | if (j < 32) | |
d42a62b3 | 760 | break; |
d42a62b3 | 761 | } |
2991469c JM |
762 | if (j == 32) |
763 | return -1; | |
764 | aid = i * 32 + j + 1; | |
765 | if (aid > 2007) | |
766 | return -1; | |
d42a62b3 | 767 | |
2991469c JM |
768 | sta->aid = aid; |
769 | hapd->sta_aid[i] |= BIT(j); | |
d42a62b3 JM |
770 | wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); |
771 | return 0; | |
772 | } | |
773 | ||
774 | ||
5586f500 JM |
775 | static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, |
776 | const u8 *ssid_ie, size_t ssid_ie_len) | |
6fc6879b | 777 | { |
5586f500 JM |
778 | if (ssid_ie == NULL) |
779 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 780 | |
5586f500 JM |
781 | if (ssid_ie_len != hapd->conf->ssid.ssid_len || |
782 | os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { | |
783 | char ssid_txt[33]; | |
784 | ieee802_11_print_ssid(ssid_txt, ssid_ie, ssid_ie_len); | |
785 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
786 | HOSTAPD_LEVEL_INFO, | |
787 | "Station tried to associate with unknown SSID " | |
788 | "'%s'", ssid_txt); | |
789 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
b0194fe0 JM |
790 | } |
791 | ||
5586f500 JM |
792 | return WLAN_STATUS_SUCCESS; |
793 | } | |
6fc6879b | 794 | |
6fc6879b | 795 | |
5586f500 JM |
796 | static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, |
797 | const u8 *wmm_ie, size_t wmm_ie_len) | |
798 | { | |
3ae0800c | 799 | sta->flags &= ~WLAN_STA_WMM; |
5d061637 | 800 | sta->qosinfo = 0; |
5586f500 | 801 | if (wmm_ie && hapd->conf->wmm_enabled) { |
5f32f79c | 802 | struct wmm_information_element *wmm; |
5f32f79c | 803 | |
c84b868a | 804 | if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) { |
6fc6879b JM |
805 | hostapd_logger(hapd, sta->addr, |
806 | HOSTAPD_MODULE_WPA, | |
807 | HOSTAPD_LEVEL_DEBUG, | |
3ae0800c | 808 | "invalid WMM element in association " |
6fc6879b | 809 | "request"); |
5f32f79c EP |
810 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
811 | } | |
812 | ||
813 | sta->flags |= WLAN_STA_WMM; | |
814 | wmm = (struct wmm_information_element *) wmm_ie; | |
5d061637 | 815 | sta->qosinfo = wmm->qos_info; |
6fc6879b | 816 | } |
5586f500 JM |
817 | return WLAN_STATUS_SUCCESS; |
818 | } | |
6fc6879b | 819 | |
5586f500 JM |
820 | |
821 | static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, | |
822 | struct ieee802_11_elems *elems) | |
823 | { | |
824 | if (!elems->supp_rates) { | |
825 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
6fc6879b JM |
826 | HOSTAPD_LEVEL_DEBUG, |
827 | "No supported rates element in AssocReq"); | |
5586f500 | 828 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
829 | } |
830 | ||
3489cfb0 JM |
831 | if (elems->supp_rates_len + elems->ext_supp_rates_len > |
832 | sizeof(sta->supported_rates)) { | |
5586f500 | 833 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
6fc6879b | 834 | HOSTAPD_LEVEL_DEBUG, |
3489cfb0 JM |
835 | "Invalid supported rates element length %d+%d", |
836 | elems->supp_rates_len, | |
837 | elems->ext_supp_rates_len); | |
5586f500 | 838 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
839 | } |
840 | ||
3489cfb0 JM |
841 | sta->supported_rates_len = merge_byte_arrays( |
842 | sta->supported_rates, sizeof(sta->supported_rates), | |
843 | elems->supp_rates, elems->supp_rates_len, | |
844 | elems->ext_supp_rates, elems->ext_supp_rates_len); | |
6fc6879b | 845 | |
5586f500 JM |
846 | return WLAN_STATUS_SUCCESS; |
847 | } | |
848 | ||
849 | ||
5586f500 | 850 | static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c | 851 | const u8 *ies, size_t ies_len, int reassoc) |
5586f500 JM |
852 | { |
853 | struct ieee802_11_elems elems; | |
854 | u16 resp; | |
ba091c06 | 855 | const u8 *wpa_ie; |
5586f500 JM |
856 | size_t wpa_ie_len; |
857 | ||
858 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { | |
859 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
860 | HOSTAPD_LEVEL_INFO, "Station sent an invalid " | |
861 | "association request"); | |
862 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
863 | } | |
864 | ||
865 | resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); | |
866 | if (resp != WLAN_STATUS_SUCCESS) | |
867 | return resp; | |
868 | resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); | |
869 | if (resp != WLAN_STATUS_SUCCESS) | |
870 | return resp; | |
871 | resp = copy_supp_rates(hapd, sta, &elems); | |
872 | if (resp != WLAN_STATUS_SUCCESS) | |
873 | return resp; | |
d45354be | 874 | #ifdef CONFIG_IEEE80211N |
f39b07d7 | 875 | resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities, |
5586f500 JM |
876 | elems.ht_capabilities_len); |
877 | if (resp != WLAN_STATUS_SUCCESS) | |
878 | return resp; | |
29448243 JM |
879 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && |
880 | !(sta->flags & WLAN_STA_HT)) { | |
881 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
882 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
883 | "mandatory HT PHY - reject association"); | |
884 | return WLAN_STATUS_ASSOC_DENIED_NO_HT; | |
885 | } | |
d45354be | 886 | #endif /* CONFIG_IEEE80211N */ |
5586f500 | 887 | |
de3cdf35 MP |
888 | #ifdef CONFIG_IEEE80211AC |
889 | resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities, | |
890 | elems.vht_capabilities_len); | |
891 | if (resp != WLAN_STATUS_SUCCESS) | |
892 | return resp; | |
140e850a MP |
893 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && |
894 | !(sta->flags & WLAN_STA_VHT)) { | |
895 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
896 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
897 | "mandatory VHT PHY - reject association"); | |
898 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
899 | } | |
de3cdf35 MP |
900 | #endif /* CONFIG_IEEE80211AC */ |
901 | ||
6fc6879b JM |
902 | if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { |
903 | wpa_ie = elems.rsn_ie; | |
904 | wpa_ie_len = elems.rsn_ie_len; | |
905 | } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && | |
906 | elems.wpa_ie) { | |
907 | wpa_ie = elems.wpa_ie; | |
908 | wpa_ie_len = elems.wpa_ie_len; | |
909 | } else { | |
910 | wpa_ie = NULL; | |
911 | wpa_ie_len = 0; | |
912 | } | |
5586f500 | 913 | |
ad08c363 | 914 | #ifdef CONFIG_WPS |
17f6b900 | 915 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
c47cf42e JM |
916 | if (hapd->conf->wps_state && elems.wps_ie) { |
917 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " | |
918 | "Request - assume WPS is used"); | |
919 | sta->flags |= WLAN_STA_WPS; | |
920 | wpabuf_free(sta->wps_ie); | |
16e46ec0 JM |
921 | sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
922 | WPS_IE_VENDOR_TYPE); | |
17f6b900 JM |
923 | if (sta->wps_ie && wps_is_20(sta->wps_ie)) { |
924 | wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); | |
925 | sta->flags |= WLAN_STA_WPS2; | |
926 | } | |
c47cf42e JM |
927 | wpa_ie = NULL; |
928 | wpa_ie_len = 0; | |
54f489be JM |
929 | if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) { |
930 | wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in " | |
931 | "(Re)Association Request - reject"); | |
932 | return WLAN_STATUS_INVALID_IE; | |
933 | } | |
c47cf42e JM |
934 | } else if (hapd->conf->wps_state && wpa_ie == NULL) { |
935 | wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " | |
936 | "(Re)Association Request - possible WPS use"); | |
937 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
ad08c363 JM |
938 | } else |
939 | #endif /* CONFIG_WPS */ | |
6fc6879b | 940 | if (hapd->conf->wpa && wpa_ie == NULL) { |
5586f500 JM |
941 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
942 | HOSTAPD_LEVEL_INFO, | |
943 | "No WPA/RSN IE in association request"); | |
944 | return WLAN_STATUS_INVALID_IE; | |
6fc6879b JM |
945 | } |
946 | ||
947 | if (hapd->conf->wpa && wpa_ie) { | |
948 | int res; | |
949 | wpa_ie -= 2; | |
950 | wpa_ie_len += 2; | |
951 | if (sta->wpa_sm == NULL) | |
952 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
953 | sta->addr); | |
954 | if (sta->wpa_sm == NULL) { | |
5586f500 JM |
955 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " |
956 | "state machine"); | |
957 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b JM |
958 | } |
959 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
960 | wpa_ie, wpa_ie_len, | |
961 | elems.mdie, elems.mdie_len); | |
962 | if (res == WPA_INVALID_GROUP) | |
963 | resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; | |
964 | else if (res == WPA_INVALID_PAIRWISE) | |
965 | resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; | |
966 | else if (res == WPA_INVALID_AKMP) | |
967 | resp = WLAN_STATUS_AKMP_NOT_VALID; | |
968 | else if (res == WPA_ALLOC_FAIL) | |
969 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
970 | #ifdef CONFIG_IEEE80211W | |
971 | else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) | |
9a9876bf | 972 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b | 973 | else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) |
9a9876bf | 974 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b JM |
975 | #endif /* CONFIG_IEEE80211W */ |
976 | else if (res == WPA_INVALID_MDIE) | |
977 | resp = WLAN_STATUS_INVALID_MDIE; | |
978 | else if (res != WPA_IE_OK) | |
979 | resp = WLAN_STATUS_INVALID_IE; | |
980 | if (resp != WLAN_STATUS_SUCCESS) | |
5586f500 | 981 | return resp; |
f3f7540e | 982 | #ifdef CONFIG_IEEE80211W |
45c94154 JM |
983 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
984 | sta->sa_query_count > 0) | |
985 | ap_check_sa_query_timeout(hapd, sta); | |
8f4617c6 JM |
986 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
987 | (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { | |
5d22a1d5 | 988 | /* |
93b76319 JM |
989 | * STA has already been associated with MFP and SA |
990 | * Query timeout has not been reached. Reject the | |
991 | * association attempt temporarily and start SA Query, | |
992 | * if one is not pending. | |
5d22a1d5 JM |
993 | */ |
994 | ||
93b76319 JM |
995 | if (sta->sa_query_count == 0) |
996 | ap_sta_start_sa_query(hapd, sta); | |
5d22a1d5 | 997 | |
5586f500 | 998 | return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; |
5d22a1d5 JM |
999 | } |
1000 | ||
f3f7540e JM |
1001 | if (wpa_auth_uses_mfp(sta->wpa_sm)) |
1002 | sta->flags |= WLAN_STA_MFP; | |
1003 | else | |
1004 | sta->flags &= ~WLAN_STA_MFP; | |
1005 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1006 | |
1007 | #ifdef CONFIG_IEEE80211R | |
1008 | if (sta->auth_alg == WLAN_AUTH_FT) { | |
1009 | if (!reassoc) { | |
1010 | wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " | |
1011 | "to use association (not " | |
1012 | "re-association) with FT auth_alg", | |
1013 | MAC2STR(sta->addr)); | |
5586f500 | 1014 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1015 | } |
1016 | ||
5586f500 JM |
1017 | resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, |
1018 | ies_len); | |
6fc6879b | 1019 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 1020 | return resp; |
6fc6879b JM |
1021 | } |
1022 | #endif /* CONFIG_IEEE80211R */ | |
5586f500 | 1023 | |
c10347f2 JM |
1024 | #ifdef CONFIG_SAE |
1025 | if (wpa_auth_uses_sae(sta->wpa_sm) && | |
1026 | sta->auth_alg != WLAN_AUTH_SAE) { | |
1027 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use " | |
1028 | "SAE AKM after non-SAE auth_alg %u", | |
1029 | MAC2STR(sta->addr), sta->auth_alg); | |
1030 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
1031 | } | |
1032 | #endif /* CONFIG_SAE */ | |
1033 | ||
ff36ff00 | 1034 | #ifdef CONFIG_IEEE80211N |
f0c7a986 | 1035 | if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) && |
ff36ff00 | 1036 | wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { |
5586f500 JM |
1037 | hostapd_logger(hapd, sta->addr, |
1038 | HOSTAPD_MODULE_IEEE80211, | |
1039 | HOSTAPD_LEVEL_INFO, | |
1040 | "Station tried to use TKIP with HT " | |
1041 | "association"); | |
1042 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; | |
ff36ff00 JM |
1043 | } |
1044 | #endif /* CONFIG_IEEE80211N */ | |
a8d05fca JM |
1045 | } else |
1046 | wpa_auth_sta_no_wpa(sta->wpa_sm); | |
6fc6879b | 1047 | |
b305c684 JM |
1048 | #ifdef CONFIG_P2P |
1049 | if (elems.p2p) { | |
1050 | wpabuf_free(sta->p2p_ie); | |
1051 | sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, | |
1052 | P2P_IE_VENDOR_TYPE); | |
8ccbe415 | 1053 | |
b305c684 JM |
1054 | } else { |
1055 | wpabuf_free(sta->p2p_ie); | |
1056 | sta->p2p_ie = NULL; | |
1057 | } | |
3f4ce13f JM |
1058 | |
1059 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len); | |
b305c684 JM |
1060 | #endif /* CONFIG_P2P */ |
1061 | ||
f403dcd6 JM |
1062 | #ifdef CONFIG_HS20 |
1063 | wpabuf_free(sta->hs20_ie); | |
1064 | if (elems.hs20 && elems.hs20_len > 4) { | |
1065 | sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, | |
1066 | elems.hs20_len - 4); | |
1067 | } else | |
1068 | sta->hs20_ie = NULL; | |
1069 | #endif /* CONFIG_HS20 */ | |
1070 | ||
5586f500 JM |
1071 | return WLAN_STATUS_SUCCESS; |
1072 | } | |
1073 | ||
1074 | ||
1075 | static void send_deauth(struct hostapd_data *hapd, const u8 *addr, | |
1076 | u16 reason_code) | |
1077 | { | |
1078 | int send_len; | |
1079 | struct ieee80211_mgmt reply; | |
1080 | ||
1081 | os_memset(&reply, 0, sizeof(reply)); | |
1082 | reply.frame_control = | |
1083 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); | |
1084 | os_memcpy(reply.da, addr, ETH_ALEN); | |
1085 | os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); | |
1086 | os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); | |
1087 | ||
1088 | send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); | |
1089 | reply.u.deauth.reason_code = host_to_le16(reason_code); | |
1090 | ||
8cfa3527 | 1091 | if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0) |
5586f500 JM |
1092 | wpa_printf(MSG_INFO, "Failed to send deauth: %s", |
1093 | strerror(errno)); | |
1094 | } | |
1095 | ||
1096 | ||
1097 | static void send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, | |
b57e086c | 1098 | u16 status_code, int reassoc, const u8 *ies, |
5586f500 JM |
1099 | size_t ies_len) |
1100 | { | |
1101 | int send_len; | |
1102 | u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; | |
1103 | struct ieee80211_mgmt *reply; | |
1104 | u8 *p; | |
1105 | ||
1106 | os_memset(buf, 0, sizeof(buf)); | |
1107 | reply = (struct ieee80211_mgmt *) buf; | |
1108 | reply->frame_control = | |
1109 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
1110 | (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : | |
1111 | WLAN_FC_STYPE_ASSOC_RESP)); | |
1112 | os_memcpy(reply->da, sta->addr, ETH_ALEN); | |
1113 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
1114 | os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); | |
1115 | ||
1116 | send_len = IEEE80211_HDRLEN; | |
1117 | send_len += sizeof(reply->u.assoc_resp); | |
1118 | reply->u.assoc_resp.capab_info = | |
1119 | host_to_le16(hostapd_own_capab_info(hapd, sta, 0)); | |
1120 | reply->u.assoc_resp.status_code = host_to_le16(status_code); | |
1121 | reply->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0) | |
1122 | | BIT(14) | BIT(15)); | |
1123 | /* Supported rates */ | |
1124 | p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); | |
1125 | /* Extended supported rates */ | |
1126 | p = hostapd_eid_ext_supp_rates(hapd, p); | |
5586f500 JM |
1127 | |
1128 | #ifdef CONFIG_IEEE80211R | |
1129 | if (status_code == WLAN_STATUS_SUCCESS) { | |
1130 | /* IEEE 802.11r: Mobility Domain Information, Fast BSS | |
1131 | * Transition Information, RSN, [RIC Response] */ | |
1132 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, | |
1133 | buf + sizeof(buf) - p, | |
1134 | sta->auth_alg, ies, ies_len); | |
1135 | } | |
1136 | #endif /* CONFIG_IEEE80211R */ | |
1137 | ||
1138 | #ifdef CONFIG_IEEE80211W | |
1139 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) | |
1140 | p = hostapd_eid_assoc_comeback_time(hapd, sta, p); | |
1141 | #endif /* CONFIG_IEEE80211W */ | |
1142 | ||
1bc774a1 JM |
1143 | #ifdef CONFIG_IEEE80211N |
1144 | p = hostapd_eid_ht_capabilities(hapd, p); | |
1145 | p = hostapd_eid_ht_operation(hapd, p); | |
1146 | #endif /* CONFIG_IEEE80211N */ | |
1147 | ||
14708b50 MP |
1148 | #ifdef CONFIG_IEEE80211AC |
1149 | p = hostapd_eid_vht_capabilities(hapd, p); | |
1150 | p = hostapd_eid_vht_operation(hapd, p); | |
1151 | #endif /* CONFIG_IEEE80211AC */ | |
1152 | ||
1161ff1e | 1153 | p = hostapd_eid_ext_capab(hapd, p); |
b6668734 | 1154 | p = hostapd_eid_bss_max_idle_period(hapd, p); |
1161ff1e | 1155 | |
1bc774a1 JM |
1156 | if (sta->flags & WLAN_STA_WMM) |
1157 | p = hostapd_eid_wmm(hapd, p); | |
1158 | ||
ed7a09f9 | 1159 | #ifdef CONFIG_WPS |
71093e5e JM |
1160 | if ((sta->flags & WLAN_STA_WPS) || |
1161 | ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa)) { | |
ed7a09f9 JM |
1162 | struct wpabuf *wps = wps_build_assoc_resp_ie(); |
1163 | if (wps) { | |
1164 | os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps)); | |
1165 | p += wpabuf_len(wps); | |
1166 | wpabuf_free(wps); | |
1167 | } | |
1168 | } | |
1169 | #endif /* CONFIG_WPS */ | |
1170 | ||
8ccbe415 JM |
1171 | #ifdef CONFIG_P2P |
1172 | if (sta->p2p_ie) { | |
1173 | struct wpabuf *p2p_resp_ie; | |
1174 | enum p2p_status_code status; | |
1175 | switch (status_code) { | |
1176 | case WLAN_STATUS_SUCCESS: | |
1177 | status = P2P_SC_SUCCESS; | |
1178 | break; | |
1179 | case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: | |
1180 | status = P2P_SC_FAIL_LIMIT_REACHED; | |
1181 | break; | |
1182 | default: | |
1183 | status = P2P_SC_FAIL_INVALID_PARAMS; | |
1184 | break; | |
1185 | } | |
1186 | p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status); | |
1187 | if (p2p_resp_ie) { | |
1188 | os_memcpy(p, wpabuf_head(p2p_resp_ie), | |
1189 | wpabuf_len(p2p_resp_ie)); | |
1190 | p += wpabuf_len(p2p_resp_ie); | |
1191 | wpabuf_free(p2p_resp_ie); | |
1192 | } | |
1193 | } | |
1194 | #endif /* CONFIG_P2P */ | |
1195 | ||
962473c1 JM |
1196 | #ifdef CONFIG_P2P_MANAGER |
1197 | if (hapd->conf->p2p & P2P_MANAGE) | |
1198 | p = hostapd_eid_p2p_manage(hapd, p); | |
1199 | #endif /* CONFIG_P2P_MANAGER */ | |
1200 | ||
5586f500 JM |
1201 | send_len += p - reply->u.assoc_resp.variable; |
1202 | ||
8cfa3527 | 1203 | if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0) |
5586f500 JM |
1204 | wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", |
1205 | strerror(errno)); | |
1206 | } | |
1207 | ||
1208 | ||
1209 | static void handle_assoc(struct hostapd_data *hapd, | |
b57e086c JM |
1210 | const struct ieee80211_mgmt *mgmt, size_t len, |
1211 | int reassoc) | |
5586f500 JM |
1212 | { |
1213 | u16 capab_info, listen_interval; | |
1214 | u16 resp = WLAN_STATUS_SUCCESS; | |
b57e086c | 1215 | const u8 *pos; |
5586f500 JM |
1216 | int left, i; |
1217 | struct sta_info *sta; | |
1218 | ||
1219 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : | |
1220 | sizeof(mgmt->u.assoc_req))) { | |
1221 | printf("handle_assoc(reassoc=%d) - too short payload (len=%lu)" | |
1222 | "\n", reassoc, (unsigned long) len); | |
1223 | return; | |
1224 | } | |
1225 | ||
1226 | if (reassoc) { | |
1227 | capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); | |
1228 | listen_interval = le_to_host16( | |
1229 | mgmt->u.reassoc_req.listen_interval); | |
1230 | wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR | |
1231 | " capab_info=0x%02x listen_interval=%d current_ap=" | |
1232 | MACSTR, | |
1233 | MAC2STR(mgmt->sa), capab_info, listen_interval, | |
1234 | MAC2STR(mgmt->u.reassoc_req.current_ap)); | |
1235 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); | |
1236 | pos = mgmt->u.reassoc_req.variable; | |
1237 | } else { | |
1238 | capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); | |
1239 | listen_interval = le_to_host16( | |
1240 | mgmt->u.assoc_req.listen_interval); | |
1241 | wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR | |
1242 | " capab_info=0x%02x listen_interval=%d", | |
1243 | MAC2STR(mgmt->sa), capab_info, listen_interval); | |
1244 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); | |
1245 | pos = mgmt->u.assoc_req.variable; | |
1246 | } | |
1247 | ||
1248 | sta = ap_get_sta(hapd, mgmt->sa); | |
1249 | #ifdef CONFIG_IEEE80211R | |
1250 | if (sta && sta->auth_alg == WLAN_AUTH_FT && | |
1251 | (sta->flags & WLAN_STA_AUTH) == 0) { | |
1252 | wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " | |
1253 | "prior to authentication since it is using " | |
1254 | "over-the-DS FT", MAC2STR(mgmt->sa)); | |
1255 | } else | |
1256 | #endif /* CONFIG_IEEE80211R */ | |
1257 | if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { | |
1258 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1259 | HOSTAPD_LEVEL_INFO, "Station tried to " | |
1260 | "associate before authentication " | |
1261 | "(aid=%d flags=0x%x)", | |
1262 | sta ? sta->aid : -1, | |
1263 | sta ? sta->flags : 0); | |
1264 | send_deauth(hapd, mgmt->sa, | |
1265 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); | |
1266 | return; | |
1267 | } | |
1268 | ||
1269 | if (hapd->tkip_countermeasures) { | |
1270 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
1271 | goto fail; | |
1272 | } | |
1273 | ||
1274 | if (listen_interval > hapd->conf->max_listen_interval) { | |
1275 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1276 | HOSTAPD_LEVEL_DEBUG, | |
1277 | "Too large Listen Interval (%d)", | |
1278 | listen_interval); | |
1279 | resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; | |
1280 | goto fail; | |
1281 | } | |
1282 | ||
1283 | /* followed by SSID and Supported rates; and HT capabilities if 802.11n | |
1284 | * is used */ | |
1285 | resp = check_assoc_ies(hapd, sta, pos, left, reassoc); | |
1286 | if (resp != WLAN_STATUS_SUCCESS) | |
1287 | goto fail; | |
1288 | ||
1289 | if (hostapd_get_aid(hapd, sta) < 0) { | |
1290 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1291 | HOSTAPD_LEVEL_INFO, "No room for more AIDs"); | |
1292 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
1293 | goto fail; | |
1294 | } | |
1295 | ||
1296 | sta->capability = capab_info; | |
1297 | sta->listen_interval = listen_interval; | |
1298 | ||
6fc6879b JM |
1299 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) |
1300 | sta->flags |= WLAN_STA_NONERP; | |
1301 | for (i = 0; i < sta->supported_rates_len; i++) { | |
1302 | if ((sta->supported_rates[i] & 0x7f) > 22) { | |
1303 | sta->flags &= ~WLAN_STA_NONERP; | |
1304 | break; | |
1305 | } | |
1306 | } | |
1307 | if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { | |
1308 | sta->nonerp_set = 1; | |
1309 | hapd->iface->num_sta_non_erp++; | |
1310 | if (hapd->iface->num_sta_non_erp == 1) | |
1311 | ieee802_11_set_beacons(hapd->iface); | |
1312 | } | |
1313 | ||
1314 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && | |
1315 | !sta->no_short_slot_time_set) { | |
1316 | sta->no_short_slot_time_set = 1; | |
1317 | hapd->iface->num_sta_no_short_slot_time++; | |
1318 | if (hapd->iface->current_mode->mode == | |
1319 | HOSTAPD_MODE_IEEE80211G && | |
1320 | hapd->iface->num_sta_no_short_slot_time == 1) | |
1321 | ieee802_11_set_beacons(hapd->iface); | |
1322 | } | |
1323 | ||
1324 | if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1325 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
1326 | else | |
1327 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
1328 | ||
1329 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
1330 | !sta->no_short_preamble_set) { | |
1331 | sta->no_short_preamble_set = 1; | |
1332 | hapd->iface->num_sta_no_short_preamble++; | |
1333 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G | |
1334 | && hapd->iface->num_sta_no_short_preamble == 1) | |
1335 | ieee802_11_set_beacons(hapd->iface); | |
1336 | } | |
1337 | ||
d45354be | 1338 | #ifdef CONFIG_IEEE80211N |
5586f500 | 1339 | update_ht_state(hapd, sta); |
d45354be | 1340 | #endif /* CONFIG_IEEE80211N */ |
de9289c8 | 1341 | |
6fc6879b JM |
1342 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1343 | HOSTAPD_LEVEL_DEBUG, | |
1344 | "association OK (aid %d)", sta->aid); | |
1345 | /* Station will be marked associated, after it acknowledges AssocResp | |
1346 | */ | |
b8281964 | 1347 | sta->flags |= WLAN_STA_ASSOC_REQ_OK; |
6fc6879b | 1348 | |
6f5c8dbd JM |
1349 | #ifdef CONFIG_IEEE80211W |
1350 | if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { | |
1351 | wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " | |
1352 | "SA Query procedure", reassoc ? "re" : ""); | |
1353 | /* TODO: Send a protected Disassociate frame to the STA using | |
1354 | * the old key and Reason Code "Previous Authentication no | |
1355 | * longer valid". Make sure this is only sent protected since | |
1356 | * unprotected frame would be received by the STA that is now | |
1357 | * trying to associate. | |
1358 | */ | |
1359 | } | |
1360 | #endif /* CONFIG_IEEE80211W */ | |
1361 | ||
1e858f69 JM |
1362 | if (reassoc) { |
1363 | os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap, | |
1364 | ETH_ALEN); | |
1365 | } | |
1366 | ||
6fc6879b JM |
1367 | if (sta->last_assoc_req) |
1368 | os_free(sta->last_assoc_req); | |
1369 | sta->last_assoc_req = os_malloc(len); | |
1370 | if (sta->last_assoc_req) | |
1371 | os_memcpy(sta->last_assoc_req, mgmt, len); | |
1372 | ||
1373 | /* Make sure that the previously registered inactivity timer will not | |
1374 | * remove the STA immediately. */ | |
1375 | sta->timeout_next = STA_NULLFUNC; | |
1376 | ||
1377 | fail: | |
5586f500 | 1378 | send_assoc_resp(hapd, sta, resp, reassoc, pos, left); |
6fc6879b JM |
1379 | } |
1380 | ||
1381 | ||
6fc6879b | 1382 | static void handle_disassoc(struct hostapd_data *hapd, |
f8b1f695 | 1383 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
1384 | { |
1385 | struct sta_info *sta; | |
1386 | ||
1387 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { | |
1388 | printf("handle_disassoc - too short payload (len=%lu)\n", | |
1389 | (unsigned long) len); | |
1390 | return; | |
1391 | } | |
1392 | ||
1393 | wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", | |
1394 | MAC2STR(mgmt->sa), | |
1395 | le_to_host16(mgmt->u.disassoc.reason_code)); | |
1396 | ||
6fc6879b JM |
1397 | sta = ap_get_sta(hapd, mgmt->sa); |
1398 | if (sta == NULL) { | |
1399 | printf("Station " MACSTR " trying to disassociate, but it " | |
1400 | "is not associated.\n", MAC2STR(mgmt->sa)); | |
1401 | return; | |
1402 | } | |
1403 | ||
ae055af4 | 1404 | ap_sta_set_authorized(hapd, sta, 0); |
b8281964 | 1405 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK); |
6fc6879b JM |
1406 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); |
1407 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1408 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
1409 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
1410 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
1411 | /* Stop Accounting and IEEE 802.1X sessions, but leave the STA | |
1412 | * authenticated. */ | |
1413 | accounting_sta_stop(hapd, sta); | |
1414 | ieee802_1x_free_station(sta); | |
51e2a27a | 1415 | hostapd_drv_sta_remove(hapd, sta->addr); |
6fc6879b JM |
1416 | |
1417 | if (sta->timeout_next == STA_NULLFUNC || | |
1418 | sta->timeout_next == STA_DISASSOC) { | |
1419 | sta->timeout_next = STA_DEAUTH; | |
1420 | eloop_cancel_timeout(ap_handle_timer, hapd, sta); | |
1421 | eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, | |
1422 | hapd, sta); | |
1423 | } | |
1424 | ||
1425 | mlme_disassociate_indication( | |
1426 | hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); | |
1427 | } | |
1428 | ||
1429 | ||
1430 | static void handle_deauth(struct hostapd_data *hapd, | |
f8b1f695 | 1431 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
1432 | { |
1433 | struct sta_info *sta; | |
1434 | ||
1435 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { | |
3ec1e902 JM |
1436 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short " |
1437 | "payload (len=%lu)", (unsigned long) len); | |
6fc6879b JM |
1438 | return; |
1439 | } | |
1440 | ||
3ec1e902 | 1441 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR |
24d75245 BG |
1442 | " reason_code=%d", |
1443 | MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code)); | |
6fc6879b | 1444 | |
6fc6879b JM |
1445 | sta = ap_get_sta(hapd, mgmt->sa); |
1446 | if (sta == NULL) { | |
3ec1e902 JM |
1447 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying " |
1448 | "to deauthenticate, but it is not authenticated", | |
24d75245 | 1449 | MAC2STR(mgmt->sa)); |
6fc6879b JM |
1450 | return; |
1451 | } | |
1452 | ||
ae055af4 | 1453 | ap_sta_set_authorized(hapd, sta, 0); |
b8281964 JM |
1454 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | |
1455 | WLAN_STA_ASSOC_REQ_OK); | |
6fc6879b JM |
1456 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); |
1457 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1458 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
1459 | mlme_deauthenticate_indication( | |
1460 | hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); | |
1461 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
1462 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
1463 | ap_free_sta(hapd, sta); | |
1464 | } | |
1465 | ||
1466 | ||
1467 | static void handle_beacon(struct hostapd_data *hapd, | |
b57e086c | 1468 | const struct ieee80211_mgmt *mgmt, size_t len, |
6fc6879b JM |
1469 | struct hostapd_frame_info *fi) |
1470 | { | |
1471 | struct ieee802_11_elems elems; | |
1472 | ||
1473 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { | |
1474 | printf("handle_beacon - too short payload (len=%lu)\n", | |
1475 | (unsigned long) len); | |
1476 | return; | |
1477 | } | |
1478 | ||
3d536eb4 | 1479 | (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, |
6fc6879b JM |
1480 | len - (IEEE80211_HDRLEN + |
1481 | sizeof(mgmt->u.beacon)), &elems, | |
1482 | 0); | |
1483 | ||
6fc6879b JM |
1484 | ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); |
1485 | } | |
1486 | ||
1487 | ||
5d22a1d5 | 1488 | #ifdef CONFIG_IEEE80211W |
88b4b424 | 1489 | |
93b76319 | 1490 | static void hostapd_sa_query_action(struct hostapd_data *hapd, |
b57e086c JM |
1491 | const struct ieee80211_mgmt *mgmt, |
1492 | size_t len) | |
5d22a1d5 | 1493 | { |
b57e086c | 1494 | const u8 *end; |
5d22a1d5 | 1495 | |
93b76319 JM |
1496 | end = mgmt->u.action.u.sa_query_resp.trans_id + |
1497 | WLAN_SA_QUERY_TR_ID_LEN; | |
5d22a1d5 | 1498 | if (((u8 *) mgmt) + len < end) { |
93b76319 | 1499 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action " |
5d22a1d5 JM |
1500 | "frame (len=%lu)", (unsigned long) len); |
1501 | return; | |
1502 | } | |
1503 | ||
d4370eac MP |
1504 | ieee802_11_sa_query_action(hapd, mgmt->sa, |
1505 | mgmt->u.action.u.sa_query_resp.action, | |
1506 | mgmt->u.action.u.sa_query_resp.trans_id); | |
5d22a1d5 | 1507 | } |
5d22a1d5 JM |
1508 | |
1509 | ||
c4e281fd JM |
1510 | static int robust_action_frame(u8 category) |
1511 | { | |
1512 | return category != WLAN_ACTION_PUBLIC && | |
1513 | category != WLAN_ACTION_HT; | |
1514 | } | |
9f64b827 | 1515 | #endif /* CONFIG_IEEE80211W */ |
c4e281fd JM |
1516 | |
1517 | ||
c79938a5 JM |
1518 | #ifdef CONFIG_WNM |
1519 | static void hostapd_wnm_action(struct hostapd_data *hapd, struct sta_info *sta, | |
1520 | const struct ieee80211_mgmt *mgmt, | |
1521 | size_t len) | |
1522 | { | |
1523 | struct rx_action action; | |
1524 | if (len < IEEE80211_HDRLEN + 2) | |
1525 | return; | |
1526 | os_memset(&action, 0, sizeof(action)); | |
1527 | action.da = mgmt->da; | |
1528 | action.sa = mgmt->sa; | |
1529 | action.bssid = mgmt->bssid; | |
1530 | action.category = mgmt->u.action.category; | |
1531 | action.data = (const u8 *) &mgmt->u.action.u.wnm_sleep_req.action; | |
1532 | action.len = len - IEEE80211_HDRLEN - 1; | |
1533 | action.freq = hapd->iface->freq; | |
1534 | ieee802_11_rx_wnm_action_ap(hapd, &action); | |
1535 | } | |
1536 | #endif /* CONFIG_WNM */ | |
1537 | ||
1538 | ||
6fc6879b | 1539 | static void handle_action(struct hostapd_data *hapd, |
b57e086c | 1540 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b | 1541 | { |
c4e281fd | 1542 | struct sta_info *sta; |
46eeedac | 1543 | sta = ap_get_sta(hapd, mgmt->sa); |
c4e281fd | 1544 | |
6fc6879b JM |
1545 | if (len < IEEE80211_HDRLEN + 1) { |
1546 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1547 | HOSTAPD_LEVEL_DEBUG, | |
1548 | "handle_action - too short payload (len=%lu)", | |
1549 | (unsigned long) len); | |
1550 | return; | |
1551 | } | |
1552 | ||
c79938a5 JM |
1553 | if (mgmt->u.action.category != WLAN_ACTION_PUBLIC && |
1554 | (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { | |
1555 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action " | |
1556 | "frame (category=%u) from unassociated STA " MACSTR, | |
1557 | MAC2STR(mgmt->sa), mgmt->u.action.category); | |
1558 | return; | |
1559 | } | |
1560 | ||
c4e281fd JM |
1561 | #ifdef CONFIG_IEEE80211W |
1562 | if (sta && (sta->flags & WLAN_STA_MFP) && | |
1563 | !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP) && | |
1564 | robust_action_frame(mgmt->u.action.category))) { | |
1565 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1566 | HOSTAPD_LEVEL_DEBUG, | |
1567 | "Dropped unprotected Robust Action frame from " | |
1568 | "an MFP STA"); | |
1569 | return; | |
1570 | } | |
1571 | #endif /* CONFIG_IEEE80211W */ | |
1572 | ||
6fc6879b JM |
1573 | switch (mgmt->u.action.category) { |
1574 | #ifdef CONFIG_IEEE80211R | |
1575 | case WLAN_ACTION_FT: | |
6fc6879b JM |
1576 | if (wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, |
1577 | len - IEEE80211_HDRLEN)) | |
1578 | break; | |
6fc6879b | 1579 | return; |
6fc6879b | 1580 | #endif /* CONFIG_IEEE80211R */ |
c2a71408 | 1581 | case WLAN_ACTION_WMM: |
3ae0800c | 1582 | hostapd_wmm_action(hapd, mgmt, len); |
6fc6879b | 1583 | return; |
5d22a1d5 | 1584 | #ifdef CONFIG_IEEE80211W |
93b76319 JM |
1585 | case WLAN_ACTION_SA_QUERY: |
1586 | hostapd_sa_query_action(hapd, mgmt, len); | |
5d22a1d5 JM |
1587 | return; |
1588 | #endif /* CONFIG_IEEE80211W */ | |
c79938a5 JM |
1589 | #ifdef CONFIG_WNM |
1590 | case WLAN_ACTION_WNM: | |
1591 | hostapd_wnm_action(hapd, sta, mgmt, len); | |
1592 | return; | |
1593 | #endif /* CONFIG_WNM */ | |
c706d5aa JM |
1594 | case WLAN_ACTION_PUBLIC: |
1595 | if (hapd->public_action_cb) { | |
1596 | hapd->public_action_cb(hapd->public_action_cb_ctx, | |
1597 | (u8 *) mgmt, len, | |
1598 | hapd->iface->freq); | |
1599 | return; | |
1600 | } | |
1601 | break; | |
e44f8bf2 JM |
1602 | case WLAN_ACTION_VENDOR_SPECIFIC: |
1603 | if (hapd->vendor_action_cb) { | |
1604 | if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx, | |
1605 | (u8 *) mgmt, len, | |
1606 | hapd->iface->freq) == 0) | |
1607 | return; | |
1608 | } | |
1609 | break; | |
6fc6879b JM |
1610 | } |
1611 | ||
1612 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1613 | HOSTAPD_LEVEL_DEBUG, | |
1614 | "handle_action - unknown action category %d or invalid " | |
1615 | "frame", | |
1616 | mgmt->u.action.category); | |
1617 | if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) && | |
1618 | !(mgmt->sa[0] & 0x01)) { | |
b57e086c JM |
1619 | struct ieee80211_mgmt *resp; |
1620 | ||
6fc6879b JM |
1621 | /* |
1622 | * IEEE 802.11-REVma/D9.0 - 7.3.1.11 | |
1623 | * Return the Action frame to the source without change | |
1624 | * except that MSB of the Category set to 1. | |
1625 | */ | |
1626 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " | |
1627 | "frame back to sender"); | |
b57e086c JM |
1628 | resp = os_malloc(len); |
1629 | if (resp == NULL) | |
1630 | return; | |
1631 | os_memcpy(resp, mgmt, len); | |
1632 | os_memcpy(resp->da, resp->sa, ETH_ALEN); | |
1633 | os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); | |
1634 | os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); | |
1635 | resp->u.action.category |= 0x80; | |
1636 | ||
41fe8b42 JM |
1637 | if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) { |
1638 | wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send " | |
1639 | "Action frame"); | |
1640 | } | |
b57e086c | 1641 | os_free(resp); |
6fc6879b JM |
1642 | } |
1643 | } | |
1644 | ||
1645 | ||
1646 | /** | |
1647 | * ieee802_11_mgmt - process incoming IEEE 802.11 management frames | |
1648 | * @hapd: hostapd BSS data structure (the BSS to which the management frame was | |
1649 | * sent to) | |
1650 | * @buf: management frame data (starting from IEEE 802.11 header) | |
1651 | * @len: length of frame data in octets | |
a17df5fb | 1652 | * @fi: meta data about received frame (signal level, etc.) |
6fc6879b JM |
1653 | * |
1654 | * Process all incoming IEEE 802.11 management frames. This will be called for | |
1655 | * each frame received from the kernel driver through wlan#ap interface. In | |
1656 | * addition, it can be called to re-inserted pending frames (e.g., when using | |
1657 | * external RADIUS server as an MAC ACL). | |
1658 | */ | |
b57e086c | 1659 | void ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
1660 | struct hostapd_frame_info *fi) |
1661 | { | |
f8b1f695 | 1662 | struct ieee80211_mgmt *mgmt; |
6fc6879b | 1663 | int broadcast; |
f8b1f695 JM |
1664 | u16 fc, stype; |
1665 | ||
cbcf92b4 JM |
1666 | if (len < 24) |
1667 | return; | |
1668 | ||
f8b1f695 JM |
1669 | mgmt = (struct ieee80211_mgmt *) buf; |
1670 | fc = le_to_host16(mgmt->frame_control); | |
1671 | stype = WLAN_FC_GET_STYPE(fc); | |
6fc6879b JM |
1672 | |
1673 | if (stype == WLAN_FC_STYPE_BEACON) { | |
1674 | handle_beacon(hapd, mgmt, len, fi); | |
1675 | return; | |
1676 | } | |
1677 | ||
6fc6879b JM |
1678 | broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff && |
1679 | mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff && | |
1680 | mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff; | |
1681 | ||
1682 | if (!broadcast && | |
3eeee931 AN |
1683 | #ifdef CONFIG_P2P |
1684 | /* Invitation responses can be sent with the peer MAC as BSSID */ | |
1685 | !((hapd->conf->p2p & P2P_GROUP_OWNER) && | |
1686 | stype == WLAN_FC_STYPE_ACTION) && | |
1687 | #endif /* CONFIG_P2P */ | |
fe2c5241 | 1688 | os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { |
6fc6879b JM |
1689 | printf("MGMT: BSSID=" MACSTR " not our address\n", |
1690 | MAC2STR(mgmt->bssid)); | |
1691 | return; | |
1692 | } | |
1693 | ||
1694 | ||
1695 | if (stype == WLAN_FC_STYPE_PROBE_REQ) { | |
baf513d6 | 1696 | handle_probe_req(hapd, mgmt, len, fi->ssi_signal); |
6fc6879b JM |
1697 | return; |
1698 | } | |
1699 | ||
1700 | if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { | |
1701 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1702 | HOSTAPD_LEVEL_DEBUG, | |
1703 | "MGMT: DA=" MACSTR " not our address", | |
1704 | MAC2STR(mgmt->da)); | |
1705 | return; | |
1706 | } | |
1707 | ||
1708 | switch (stype) { | |
1709 | case WLAN_FC_STYPE_AUTH: | |
1710 | wpa_printf(MSG_DEBUG, "mgmt::auth"); | |
1711 | handle_auth(hapd, mgmt, len); | |
1712 | break; | |
1713 | case WLAN_FC_STYPE_ASSOC_REQ: | |
1714 | wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); | |
1715 | handle_assoc(hapd, mgmt, len, 0); | |
1716 | break; | |
6fc6879b JM |
1717 | case WLAN_FC_STYPE_REASSOC_REQ: |
1718 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); | |
1719 | handle_assoc(hapd, mgmt, len, 1); | |
1720 | break; | |
1721 | case WLAN_FC_STYPE_DISASSOC: | |
1722 | wpa_printf(MSG_DEBUG, "mgmt::disassoc"); | |
1723 | handle_disassoc(hapd, mgmt, len); | |
1724 | break; | |
1725 | case WLAN_FC_STYPE_DEAUTH: | |
3ec1e902 | 1726 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth"); |
6fc6879b JM |
1727 | handle_deauth(hapd, mgmt, len); |
1728 | break; | |
1729 | case WLAN_FC_STYPE_ACTION: | |
1730 | wpa_printf(MSG_DEBUG, "mgmt::action"); | |
1731 | handle_action(hapd, mgmt, len); | |
1732 | break; | |
1733 | default: | |
1734 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1735 | HOSTAPD_LEVEL_DEBUG, | |
1736 | "unknown mgmt frame subtype %d", stype); | |
1737 | break; | |
1738 | } | |
1739 | } | |
1740 | ||
1741 | ||
1742 | static void handle_auth_cb(struct hostapd_data *hapd, | |
f8b1f695 | 1743 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
1744 | size_t len, int ok) |
1745 | { | |
1746 | u16 auth_alg, auth_transaction, status_code; | |
1747 | struct sta_info *sta; | |
1748 | ||
1749 | if (!ok) { | |
1750 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
1751 | HOSTAPD_LEVEL_NOTICE, | |
1752 | "did not acknowledge authentication response"); | |
1753 | return; | |
1754 | } | |
1755 | ||
1756 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
1757 | printf("handle_auth_cb - too short payload (len=%lu)\n", | |
1758 | (unsigned long) len); | |
1759 | return; | |
1760 | } | |
1761 | ||
1762 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
1763 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
1764 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
1765 | ||
1766 | sta = ap_get_sta(hapd, mgmt->da); | |
1767 | if (!sta) { | |
1768 | printf("handle_auth_cb: STA " MACSTR " not found\n", | |
1769 | MAC2STR(mgmt->da)); | |
1770 | return; | |
1771 | } | |
1772 | ||
1773 | if (status_code == WLAN_STATUS_SUCCESS && | |
1774 | ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || | |
1775 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { | |
1776 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1777 | HOSTAPD_LEVEL_INFO, "authenticated"); | |
1778 | sta->flags |= WLAN_STA_AUTH; | |
1779 | } | |
1780 | } | |
1781 | ||
1782 | ||
1783 | static void handle_assoc_cb(struct hostapd_data *hapd, | |
f8b1f695 | 1784 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
1785 | size_t len, int reassoc, int ok) |
1786 | { | |
1787 | u16 status; | |
1788 | struct sta_info *sta; | |
1789 | int new_assoc = 1; | |
fc4e2d95 | 1790 | struct ieee80211_ht_capabilities ht_cap; |
a9a1d0f0 | 1791 | struct ieee80211_vht_capabilities vht_cap; |
6fc6879b | 1792 | |
6fc6879b JM |
1793 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : |
1794 | sizeof(mgmt->u.assoc_resp))) { | |
1795 | printf("handle_assoc_cb(reassoc=%d) - too short payload " | |
1796 | "(len=%lu)\n", reassoc, (unsigned long) len); | |
1797 | return; | |
1798 | } | |
1799 | ||
6fc6879b JM |
1800 | sta = ap_get_sta(hapd, mgmt->da); |
1801 | if (!sta) { | |
1802 | printf("handle_assoc_cb: STA " MACSTR " not found\n", | |
1803 | MAC2STR(mgmt->da)); | |
1804 | return; | |
1805 | } | |
1806 | ||
22b42372 FF |
1807 | if (!ok) { |
1808 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
1809 | HOSTAPD_LEVEL_DEBUG, | |
1810 | "did not acknowledge association response"); | |
1811 | sta->flags &= ~WLAN_STA_ASSOC_REQ_OK; | |
1812 | return; | |
1813 | } | |
1814 | ||
1815 | if (reassoc) | |
1816 | status = le_to_host16(mgmt->u.reassoc_resp.status_code); | |
1817 | else | |
1818 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
1819 | ||
6fc6879b JM |
1820 | if (status != WLAN_STATUS_SUCCESS) |
1821 | goto fail; | |
1822 | ||
1823 | /* Stop previous accounting session, if one is started, and allocate | |
1824 | * new session id for the new session. */ | |
1825 | accounting_sta_stop(hapd, sta); | |
6fc6879b JM |
1826 | |
1827 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1828 | HOSTAPD_LEVEL_INFO, | |
2fc98d02 JM |
1829 | "associated (aid %d)", |
1830 | sta->aid); | |
6fc6879b JM |
1831 | |
1832 | if (sta->flags & WLAN_STA_ASSOC) | |
1833 | new_assoc = 0; | |
1834 | sta->flags |= WLAN_STA_ASSOC; | |
ef580012 JM |
1835 | if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) || |
1836 | sta->auth_alg == WLAN_AUTH_FT) { | |
1837 | /* | |
1838 | * Open, static WEP, or FT protocol; no separate authorization | |
1839 | * step. | |
1840 | */ | |
6905dcb1 | 1841 | ap_sta_set_authorized(hapd, sta, 1); |
515cf93f | 1842 | } |
6fc6879b JM |
1843 | |
1844 | if (reassoc) | |
1845 | mlme_reassociate_indication(hapd, sta); | |
1846 | else | |
1847 | mlme_associate_indication(hapd, sta); | |
1848 | ||
5d22a1d5 | 1849 | #ifdef CONFIG_IEEE80211W |
93b76319 | 1850 | sta->sa_query_timed_out = 0; |
5d22a1d5 JM |
1851 | #endif /* CONFIG_IEEE80211W */ |
1852 | ||
c140a228 JM |
1853 | /* |
1854 | * Remove the STA entry in order to make sure the STA PS state gets | |
1855 | * cleared and configuration gets updated in case of reassociation back | |
1856 | * to the same AP. | |
1857 | */ | |
51e2a27a | 1858 | hostapd_drv_sta_remove(hapd, sta->addr); |
c140a228 | 1859 | |
d45354be JM |
1860 | #ifdef CONFIG_IEEE80211N |
1861 | if (sta->flags & WLAN_STA_HT) | |
1862 | hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); | |
1863 | #endif /* CONFIG_IEEE80211N */ | |
a9a1d0f0 JB |
1864 | #ifdef CONFIG_IEEE80211AC |
1865 | if (sta->flags & WLAN_STA_VHT) | |
1866 | hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap); | |
1867 | #endif /* CONFIG_IEEE80211AC */ | |
d45354be | 1868 | |
0e8a96a9 JM |
1869 | if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability, |
1870 | sta->supported_rates, sta->supported_rates_len, | |
1871 | sta->listen_interval, | |
d83ab1fe | 1872 | sta->flags & WLAN_STA_HT ? &ht_cap : NULL, |
a9a1d0f0 | 1873 | sta->flags & WLAN_STA_VHT ? &vht_cap : NULL, |
5d061637 | 1874 | sta->flags, sta->qosinfo)) { |
6fc6879b JM |
1875 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1876 | HOSTAPD_LEVEL_NOTICE, | |
1877 | "Could not add STA to kernel driver"); | |
8666585b YAP |
1878 | |
1879 | ap_sta_disconnect(hapd, sta, sta->addr, | |
1880 | WLAN_REASON_DISASSOC_AP_BUSY); | |
1881 | ||
1882 | goto fail; | |
6fc6879b JM |
1883 | } |
1884 | ||
7826ceae | 1885 | if (sta->flags & WLAN_STA_WDS) |
0e8a96a9 | 1886 | hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 1); |
7826ceae | 1887 | |
6fc6879b JM |
1888 | if (sta->eapol_sm == NULL) { |
1889 | /* | |
1890 | * This STA does not use RADIUS server for EAP authentication, | |
1891 | * so bind it to the selected VLAN interface now, since the | |
1892 | * interface selection is not going to change anymore. | |
1893 | */ | |
4254100d JM |
1894 | if (ap_sta_bind_vlan(hapd, sta, 0) < 0) |
1895 | goto fail; | |
6fc6879b JM |
1896 | } else if (sta->vlan_id) { |
1897 | /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ | |
4254100d JM |
1898 | if (ap_sta_bind_vlan(hapd, sta, 0) < 0) |
1899 | goto fail; | |
6fc6879b | 1900 | } |
eddd8010 | 1901 | |
0e8a96a9 | 1902 | hostapd_set_sta_flags(hapd, sta); |
6fc6879b JM |
1903 | |
1904 | if (sta->auth_alg == WLAN_AUTH_FT) | |
1905 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
1906 | else | |
1907 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
d24df7c3 | 1908 | hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); |
6fc6879b JM |
1909 | |
1910 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); | |
1911 | ||
1912 | fail: | |
1913 | /* Copy of the association request is not needed anymore */ | |
1914 | if (sta->last_assoc_req) { | |
1915 | os_free(sta->last_assoc_req); | |
1916 | sta->last_assoc_req = NULL; | |
1917 | } | |
1918 | } | |
1919 | ||
1920 | ||
4dc03726 JM |
1921 | static void handle_deauth_cb(struct hostapd_data *hapd, |
1922 | const struct ieee80211_mgmt *mgmt, | |
1923 | size_t len, int ok) | |
1924 | { | |
1925 | struct sta_info *sta; | |
1926 | if (mgmt->da[0] & 0x01) | |
1927 | return; | |
1928 | sta = ap_get_sta(hapd, mgmt->da); | |
1929 | if (!sta) { | |
1930 | wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR | |
1931 | " not found", MAC2STR(mgmt->da)); | |
1932 | return; | |
1933 | } | |
1934 | if (ok) | |
1935 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth", | |
1936 | MAC2STR(sta->addr)); | |
1937 | else | |
1938 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
1939 | "deauth", MAC2STR(sta->addr)); | |
1940 | ||
1941 | ap_sta_deauth_cb(hapd, sta); | |
1942 | } | |
1943 | ||
1944 | ||
1945 | static void handle_disassoc_cb(struct hostapd_data *hapd, | |
1946 | const struct ieee80211_mgmt *mgmt, | |
1947 | size_t len, int ok) | |
1948 | { | |
1949 | struct sta_info *sta; | |
1950 | if (mgmt->da[0] & 0x01) | |
1951 | return; | |
1952 | sta = ap_get_sta(hapd, mgmt->da); | |
1953 | if (!sta) { | |
1954 | wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR | |
1955 | " not found", MAC2STR(mgmt->da)); | |
1956 | return; | |
1957 | } | |
1958 | if (ok) | |
1959 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc", | |
1960 | MAC2STR(sta->addr)); | |
1961 | else | |
1962 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
1963 | "disassoc", MAC2STR(sta->addr)); | |
1964 | ||
1965 | ap_sta_disassoc_cb(hapd, sta); | |
1966 | } | |
1967 | ||
1968 | ||
1c6e69cc JM |
1969 | /** |
1970 | * ieee802_11_mgmt_cb - Process management frame TX status callback | |
1971 | * @hapd: hostapd BSS data structure (the BSS from which the management frame | |
1972 | * was sent from) | |
1973 | * @buf: management frame data (starting from IEEE 802.11 header) | |
1974 | * @len: length of frame data in octets | |
1975 | * @stype: management frame subtype from frame control field | |
1976 | * @ok: Whether the frame was ACK'ed | |
1977 | */ | |
f8b1f695 | 1978 | void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
1979 | u16 stype, int ok) |
1980 | { | |
f8b1f695 JM |
1981 | const struct ieee80211_mgmt *mgmt; |
1982 | mgmt = (const struct ieee80211_mgmt *) buf; | |
6fc6879b JM |
1983 | |
1984 | switch (stype) { | |
1985 | case WLAN_FC_STYPE_AUTH: | |
1986 | wpa_printf(MSG_DEBUG, "mgmt::auth cb"); | |
1987 | handle_auth_cb(hapd, mgmt, len, ok); | |
1988 | break; | |
1989 | case WLAN_FC_STYPE_ASSOC_RESP: | |
1990 | wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); | |
1991 | handle_assoc_cb(hapd, mgmt, len, 0, ok); | |
1992 | break; | |
1993 | case WLAN_FC_STYPE_REASSOC_RESP: | |
1994 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); | |
1995 | handle_assoc_cb(hapd, mgmt, len, 1, ok); | |
1996 | break; | |
1997 | case WLAN_FC_STYPE_PROBE_RESP: | |
2d8bf732 | 1998 | wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb"); |
6fc6879b JM |
1999 | break; |
2000 | case WLAN_FC_STYPE_DEAUTH: | |
4dc03726 JM |
2001 | wpa_printf(MSG_DEBUG, "mgmt::deauth cb"); |
2002 | handle_deauth_cb(hapd, mgmt, len, ok); | |
2003 | break; | |
2004 | case WLAN_FC_STYPE_DISASSOC: | |
2005 | wpa_printf(MSG_DEBUG, "mgmt::disassoc cb"); | |
2006 | handle_disassoc_cb(hapd, mgmt, len, ok); | |
6fc6879b | 2007 | break; |
5d22a1d5 JM |
2008 | case WLAN_FC_STYPE_ACTION: |
2009 | wpa_printf(MSG_DEBUG, "mgmt::action cb"); | |
2010 | break; | |
6fc6879b JM |
2011 | default: |
2012 | printf("unknown mgmt cb frame subtype %d\n", stype); | |
2013 | break; | |
2014 | } | |
2015 | } | |
2016 | ||
2017 | ||
6fc6879b JM |
2018 | int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) |
2019 | { | |
2020 | /* TODO */ | |
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | ||
2025 | int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, | |
2026 | char *buf, size_t buflen) | |
2027 | { | |
2028 | /* TODO */ | |
2029 | return 0; | |
2030 | } | |
2031 | ||
f8b1f695 JM |
2032 | |
2033 | void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, | |
2034 | const u8 *buf, size_t len, int ack) | |
2035 | { | |
2036 | struct sta_info *sta; | |
2037 | struct hostapd_iface *iface = hapd->iface; | |
2038 | ||
2039 | sta = ap_get_sta(hapd, addr); | |
2040 | if (sta == NULL && iface->num_bss > 1) { | |
2041 | size_t j; | |
2042 | for (j = 0; j < iface->num_bss; j++) { | |
2043 | hapd = iface->bss[j]; | |
2044 | sta = ap_get_sta(hapd, addr); | |
2045 | if (sta) | |
2046 | break; | |
2047 | } | |
2048 | } | |
0c01d65d | 2049 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) |
f8b1f695 JM |
2050 | return; |
2051 | if (sta->flags & WLAN_STA_PENDING_POLL) { | |
2052 | wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " | |
2053 | "activity poll", MAC2STR(sta->addr), | |
2054 | ack ? "ACKed" : "did not ACK"); | |
2055 | if (ack) | |
2056 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
2057 | } | |
2058 | ||
2059 | ieee802_1x_tx_status(hapd, sta, buf, len, ack); | |
2060 | } | |
2061 | ||
2062 | ||
dd840f79 JB |
2063 | void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst, |
2064 | const u8 *data, size_t len, int ack) | |
2065 | { | |
2066 | struct sta_info *sta; | |
2067 | struct hostapd_iface *iface = hapd->iface; | |
2068 | ||
2069 | sta = ap_get_sta(hapd, dst); | |
2070 | if (sta == NULL && iface->num_bss > 1) { | |
2071 | size_t j; | |
2072 | for (j = 0; j < iface->num_bss; j++) { | |
2073 | hapd = iface->bss[j]; | |
2074 | sta = ap_get_sta(hapd, dst); | |
2075 | if (sta) | |
2076 | break; | |
2077 | } | |
2078 | } | |
d9a38716 JM |
2079 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { |
2080 | wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA " | |
2081 | MACSTR " that is not currently associated", | |
2082 | MAC2STR(dst)); | |
dd840f79 | 2083 | return; |
d9a38716 | 2084 | } |
dd840f79 JB |
2085 | |
2086 | ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack); | |
2087 | } | |
2088 | ||
2089 | ||
bcf24348 JB |
2090 | void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr) |
2091 | { | |
2092 | struct sta_info *sta; | |
2093 | struct hostapd_iface *iface = hapd->iface; | |
2094 | ||
2095 | sta = ap_get_sta(hapd, addr); | |
2096 | if (sta == NULL && iface->num_bss > 1) { | |
2097 | size_t j; | |
2098 | for (j = 0; j < iface->num_bss; j++) { | |
2099 | hapd = iface->bss[j]; | |
2100 | sta = ap_get_sta(hapd, addr); | |
2101 | if (sta) | |
2102 | break; | |
2103 | } | |
2104 | } | |
2105 | if (sta == NULL) | |
2106 | return; | |
2107 | if (!(sta->flags & WLAN_STA_PENDING_POLL)) | |
2108 | return; | |
2109 | ||
2110 | wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending " | |
2111 | "activity poll", MAC2STR(sta->addr)); | |
2112 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
2113 | } | |
2114 | ||
2115 | ||
fbbfcbac FF |
2116 | void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, |
2117 | int wds) | |
f8b1f695 JM |
2118 | { |
2119 | struct sta_info *sta; | |
2120 | ||
2121 | sta = ap_get_sta(hapd, src); | |
fbbfcbac | 2122 | if (sta && (sta->flags & WLAN_STA_ASSOC)) { |
99743811 FF |
2123 | if (!hapd->conf->wds_sta) |
2124 | return; | |
2125 | ||
fbbfcbac FF |
2126 | if (wds && !(sta->flags & WLAN_STA_WDS)) { |
2127 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " | |
2128 | "STA " MACSTR " (aid %u)", | |
2129 | MAC2STR(sta->addr), sta->aid); | |
2130 | sta->flags |= WLAN_STA_WDS; | |
0e8a96a9 | 2131 | hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 1); |
fbbfcbac | 2132 | } |
f8b1f695 | 2133 | return; |
fbbfcbac | 2134 | } |
f8b1f695 JM |
2135 | |
2136 | wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " | |
2137 | MACSTR, MAC2STR(src)); | |
1df492df JM |
2138 | if (src[0] & 0x01) { |
2139 | /* Broadcast bit set in SA?! Ignore the frame silently. */ | |
2140 | return; | |
2141 | } | |
2142 | ||
b8281964 JM |
2143 | if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) { |
2144 | wpa_printf(MSG_DEBUG, "Association Response to the STA has " | |
2145 | "already been sent, but no TX status yet known - " | |
2146 | "ignore Class 3 frame issue with " MACSTR, | |
2147 | MAC2STR(src)); | |
2148 | return; | |
2149 | } | |
2150 | ||
f8b1f695 | 2151 | if (sta && (sta->flags & WLAN_STA_AUTH)) |
51e2a27a | 2152 | hostapd_drv_sta_disassoc( |
f8b1f695 JM |
2153 | hapd, src, |
2154 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
2155 | else | |
51e2a27a | 2156 | hostapd_drv_sta_deauth( |
f8b1f695 JM |
2157 | hapd, src, |
2158 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
2159 | } | |
2160 | ||
2161 | ||
6fc6879b | 2162 | #endif /* CONFIG_NATIVE_WINDOWS */ |