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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * hostapd / IEEE 802.11 Management | |
f2991170 | 3 | * Copyright (c) 2002-2014, 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" | |
81f4f619 JM |
18 | #include "common/ieee802_11_defs.h" |
19 | #include "common/ieee802_11_common.h" | |
03da66bd | 20 | #include "common/wpa_ctrl.h" |
98efcc41 | 21 | #include "common/sae.h" |
03da66bd JM |
22 | #include "radius/radius.h" |
23 | #include "radius/radius_client.h" | |
e44f8bf2 | 24 | #include "p2p/p2p.h" |
ed7a09f9 | 25 | #include "wps/wps.h" |
6fc6879b | 26 | #include "hostapd.h" |
6fc6879b | 27 | #include "beacon.h" |
6fc6879b JM |
28 | #include "ieee802_11_auth.h" |
29 | #include "sta_info.h" | |
6fc6879b | 30 | #include "ieee802_1x.h" |
6226e38d | 31 | #include "wpa_auth.h" |
f2991170 | 32 | #include "pmksa_cache_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" |
3d7ad2f6 | 42 | #include "dfs.h" |
6fc6879b JM |
43 | |
44 | ||
45 | u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
46 | { | |
47 | u8 *pos = eid; | |
48 | int i, num, count; | |
49 | ||
50 | if (hapd->iface->current_rates == NULL) | |
51 | return eid; | |
52 | ||
53 | *pos++ = WLAN_EID_SUPP_RATES; | |
54 | num = hapd->iface->num_rates; | |
29448243 JM |
55 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
56 | num++; | |
202d97d4 JB |
57 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
58 | num++; | |
6fc6879b JM |
59 | if (num > 8) { |
60 | /* rest of the rates are encoded in Extended supported | |
61 | * rates element */ | |
62 | num = 8; | |
63 | } | |
64 | ||
65 | *pos++ = num; | |
6fc6879b JM |
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; | |
6fc6879b JM |
108 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; |
109 | i++) { | |
110 | count++; | |
111 | if (count <= 8) | |
112 | continue; /* already in SuppRates IE */ | |
113 | *pos = hapd->iface->current_rates[i].rate / 5; | |
114 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
115 | *pos |= 0x80; | |
116 | pos++; | |
117 | } | |
118 | ||
202d97d4 JB |
119 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) { |
120 | count++; | |
121 | if (count > 8) | |
122 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; | |
123 | } | |
124 | ||
125 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) { | |
126 | count++; | |
127 | if (count > 8) | |
128 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
129 | } | |
29448243 | 130 | |
6fc6879b JM |
131 | return pos; |
132 | } | |
133 | ||
134 | ||
135 | u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta, | |
136 | int probe) | |
137 | { | |
138 | int capab = WLAN_CAPABILITY_ESS; | |
139 | int privacy; | |
3d7ad2f6 C |
140 | int dfs; |
141 | ||
142 | /* Check if any of configured channels require DFS */ | |
143 | dfs = hostapd_is_dfs_required(hapd->iface); | |
144 | if (dfs < 0) { | |
145 | wpa_printf(MSG_WARNING, "Failed to check if DFS is required; ret=%d", | |
146 | dfs); | |
147 | dfs = 0; | |
148 | } | |
6fc6879b JM |
149 | |
150 | if (hapd->iface->num_sta_no_short_preamble == 0 && | |
151 | hapd->iconf->preamble == SHORT_PREAMBLE) | |
152 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
153 | ||
154 | privacy = hapd->conf->ssid.wep.keys_set; | |
155 | ||
156 | if (hapd->conf->ieee802_1x && | |
157 | (hapd->conf->default_wep_key_len || | |
158 | hapd->conf->individual_wep_key_len)) | |
159 | privacy = 1; | |
160 | ||
161 | if (hapd->conf->wpa) | |
162 | privacy = 1; | |
163 | ||
a14896e8 JM |
164 | #ifdef CONFIG_HS20 |
165 | if (hapd->conf->osen) | |
166 | privacy = 1; | |
167 | #endif /* CONFIG_HS20 */ | |
168 | ||
6fc6879b JM |
169 | if (sta) { |
170 | int policy, def_klen; | |
171 | if (probe && sta->ssid_probe) { | |
172 | policy = sta->ssid_probe->security_policy; | |
173 | def_klen = sta->ssid_probe->wep.default_len; | |
174 | } else { | |
175 | policy = sta->ssid->security_policy; | |
176 | def_klen = sta->ssid->wep.default_len; | |
177 | } | |
178 | privacy = policy != SECURITY_PLAINTEXT; | |
179 | if (policy == SECURITY_IEEE_802_1X && def_klen == 0) | |
180 | privacy = 0; | |
181 | } | |
182 | ||
183 | if (privacy) | |
184 | capab |= WLAN_CAPABILITY_PRIVACY; | |
185 | ||
186 | if (hapd->iface->current_mode && | |
187 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && | |
188 | hapd->iface->num_sta_no_short_slot_time == 0) | |
189 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
190 | ||
3d7ad2f6 C |
191 | /* |
192 | * Currently, Spectrum Management capability bit is set when directly | |
193 | * requested in configuration by spectrum_mgmt_required or when AP is | |
194 | * running on DFS channel. | |
195 | * TODO: Also consider driver support for TPC to set Spectrum Mgmt bit | |
196 | */ | |
197 | if (hapd->iface->current_mode && | |
198 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211A && | |
199 | (hapd->iconf->spectrum_mgmt_required || dfs)) | |
200 | capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; | |
201 | ||
6fc6879b JM |
202 | return capab; |
203 | } | |
204 | ||
205 | ||
6fc6879b | 206 | static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c JM |
207 | u16 auth_transaction, const u8 *challenge, |
208 | int iswep) | |
6fc6879b JM |
209 | { |
210 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
211 | HOSTAPD_LEVEL_DEBUG, | |
212 | "authentication (shared key, transaction %d)", | |
213 | auth_transaction); | |
214 | ||
215 | if (auth_transaction == 1) { | |
216 | if (!sta->challenge) { | |
217 | /* Generate a pseudo-random challenge */ | |
218 | u8 key[8]; | |
0b04889f | 219 | struct os_time now; |
6fc6879b JM |
220 | int r; |
221 | sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); | |
222 | if (sta->challenge == NULL) | |
223 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
224 | ||
0b04889f PE |
225 | os_get_time(&now); |
226 | r = os_random(); | |
227 | os_memcpy(key, &now.sec, 4); | |
6fc6879b | 228 | os_memcpy(key + 4, &r, 4); |
8ef16831 JM |
229 | rc4_skip(key, sizeof(key), 0, |
230 | sta->challenge, WLAN_AUTH_CHALLENGE_LEN); | |
6fc6879b JM |
231 | } |
232 | return 0; | |
233 | } | |
234 | ||
235 | if (auth_transaction != 3) | |
236 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
237 | ||
238 | /* Transaction 3 */ | |
239 | if (!iswep || !sta->challenge || !challenge || | |
34ef46ce JM |
240 | os_memcmp_const(sta->challenge, challenge, |
241 | WLAN_AUTH_CHALLENGE_LEN)) { | |
6fc6879b JM |
242 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
243 | HOSTAPD_LEVEL_INFO, | |
244 | "shared key authentication - invalid " | |
245 | "challenge-response"); | |
246 | return WLAN_STATUS_CHALLENGE_FAIL; | |
247 | } | |
248 | ||
249 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
250 | HOSTAPD_LEVEL_DEBUG, | |
251 | "authentication OK (shared key)"); | |
6fc6879b JM |
252 | sta->flags |= WLAN_STA_AUTH; |
253 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
6fc6879b JM |
254 | os_free(sta->challenge); |
255 | sta->challenge = NULL; | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
260 | ||
261 | static void send_auth_reply(struct hostapd_data *hapd, | |
262 | const u8 *dst, const u8 *bssid, | |
263 | u16 auth_alg, u16 auth_transaction, u16 resp, | |
264 | const u8 *ies, size_t ies_len) | |
265 | { | |
266 | struct ieee80211_mgmt *reply; | |
267 | u8 *buf; | |
268 | size_t rlen; | |
269 | ||
270 | rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; | |
271 | buf = os_zalloc(rlen); | |
272 | if (buf == NULL) | |
273 | return; | |
274 | ||
275 | reply = (struct ieee80211_mgmt *) buf; | |
276 | reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
277 | WLAN_FC_STYPE_AUTH); | |
6fc6879b JM |
278 | os_memcpy(reply->da, dst, ETH_ALEN); |
279 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
280 | os_memcpy(reply->bssid, bssid, ETH_ALEN); | |
281 | ||
282 | reply->u.auth.auth_alg = host_to_le16(auth_alg); | |
283 | reply->u.auth.auth_transaction = host_to_le16(auth_transaction); | |
284 | reply->u.auth.status_code = host_to_le16(resp); | |
285 | ||
286 | if (ies && ies_len) | |
287 | os_memcpy(reply->u.auth.variable, ies, ies_len); | |
288 | ||
289 | wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR | |
290 | " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)", | |
291 | MAC2STR(dst), auth_alg, auth_transaction, | |
292 | resp, (unsigned long) ies_len); | |
8cfa3527 | 293 | if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0) |
61323e70 | 294 | wpa_printf(MSG_INFO, "send_auth_reply: send"); |
6fc6879b JM |
295 | |
296 | os_free(buf); | |
297 | } | |
298 | ||
299 | ||
300 | #ifdef CONFIG_IEEE80211R | |
301 | static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, | |
302 | u16 auth_transaction, u16 status, | |
303 | const u8 *ies, size_t ies_len) | |
304 | { | |
305 | struct hostapd_data *hapd = ctx; | |
306 | struct sta_info *sta; | |
307 | ||
308 | send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, auth_transaction, | |
309 | status, ies, ies_len); | |
310 | ||
311 | if (status != WLAN_STATUS_SUCCESS) | |
312 | return; | |
313 | ||
314 | sta = ap_get_sta(hapd, dst); | |
315 | if (sta == NULL) | |
316 | return; | |
317 | ||
318 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, | |
319 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
320 | sta->flags |= WLAN_STA_AUTH; | |
321 | mlme_authenticate_indication(hapd, sta); | |
322 | } | |
323 | #endif /* CONFIG_IEEE80211R */ | |
324 | ||
325 | ||
c10347f2 | 326 | #ifdef CONFIG_SAE |
21af6d15 | 327 | |
e96da42b BC |
328 | static struct wpabuf * auth_build_sae_commit(struct hostapd_data *hapd, |
329 | struct sta_info *sta) | |
21af6d15 JM |
330 | { |
331 | struct wpabuf *buf; | |
332 | ||
146f6c9a JM |
333 | if (hapd->conf->ssid.wpa_passphrase == NULL) { |
334 | wpa_printf(MSG_DEBUG, "SAE: No password available"); | |
335 | return NULL; | |
336 | } | |
337 | ||
8e31e955 JM |
338 | if (sae_prepare_commit(hapd->own_addr, sta->addr, |
339 | (u8 *) hapd->conf->ssid.wpa_passphrase, | |
340 | os_strlen(hapd->conf->ssid.wpa_passphrase), | |
341 | sta->sae) < 0) { | |
342 | wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE"); | |
21af6d15 | 343 | return NULL; |
8e31e955 | 344 | } |
21af6d15 | 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 | ||
e96da42b BC |
370 | static int auth_sae_send_commit(struct hostapd_data *hapd, |
371 | struct sta_info *sta, | |
372 | const u8 *bssid) | |
373 | { | |
374 | struct wpabuf *data; | |
375 | ||
376 | data = auth_build_sae_commit(hapd, sta); | |
377 | if (data == NULL) | |
378 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
379 | ||
380 | send_auth_reply(hapd, sta->addr, bssid, | |
381 | WLAN_AUTH_SAE, 1, WLAN_STATUS_SUCCESS, | |
382 | wpabuf_head(data), wpabuf_len(data)); | |
383 | ||
384 | wpabuf_free(data); | |
385 | ||
386 | return WLAN_STATUS_SUCCESS; | |
387 | } | |
388 | ||
389 | ||
390 | static int auth_sae_send_confirm(struct hostapd_data *hapd, | |
391 | struct sta_info *sta, | |
392 | const u8 *bssid) | |
393 | { | |
394 | struct wpabuf *data; | |
395 | ||
396 | data = auth_build_sae_confirm(hapd, sta); | |
397 | if (data == NULL) | |
398 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
399 | ||
400 | send_auth_reply(hapd, sta->addr, bssid, | |
401 | WLAN_AUTH_SAE, 2, WLAN_STATUS_SUCCESS, | |
402 | wpabuf_head(data), wpabuf_len(data)); | |
403 | ||
404 | wpabuf_free(data); | |
405 | ||
406 | return WLAN_STATUS_SUCCESS; | |
407 | } | |
408 | ||
409 | ||
d136c376 JM |
410 | static int use_sae_anti_clogging(struct hostapd_data *hapd) |
411 | { | |
412 | struct sta_info *sta; | |
413 | unsigned int open = 0; | |
414 | ||
415 | if (hapd->conf->sae_anti_clogging_threshold == 0) | |
416 | return 1; | |
417 | ||
418 | for (sta = hapd->sta_list; sta; sta = sta->next) { | |
419 | if (!sta->sae) | |
420 | continue; | |
421 | if (sta->sae->state != SAE_COMMITTED && | |
422 | sta->sae->state != SAE_CONFIRMED) | |
423 | continue; | |
424 | open++; | |
425 | if (open >= hapd->conf->sae_anti_clogging_threshold) | |
426 | return 1; | |
427 | } | |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
432 | ||
433 | static int check_sae_token(struct hostapd_data *hapd, const u8 *addr, | |
434 | const u8 *token, size_t token_len) | |
435 | { | |
436 | u8 mac[SHA256_MAC_LEN]; | |
437 | ||
438 | if (token_len != SHA256_MAC_LEN) | |
439 | return -1; | |
440 | if (hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
441 | addr, ETH_ALEN, mac) < 0 || | |
0233dcac | 442 | os_memcmp_const(token, mac, SHA256_MAC_LEN) != 0) |
d136c376 JM |
443 | return -1; |
444 | ||
445 | return 0; | |
446 | } | |
447 | ||
448 | ||
449 | static struct wpabuf * auth_build_token_req(struct hostapd_data *hapd, | |
450 | const u8 *addr) | |
451 | { | |
452 | struct wpabuf *buf; | |
453 | u8 *token; | |
fe52c210 | 454 | struct os_reltime now; |
d136c376 | 455 | |
fe52c210 JB |
456 | os_get_reltime(&now); |
457 | if (!os_reltime_initialized(&hapd->last_sae_token_key_update) || | |
458 | os_reltime_expired(&now, &hapd->last_sae_token_key_update, 60)) { | |
a50414c3 JM |
459 | if (random_get_bytes(hapd->sae_token_key, |
460 | sizeof(hapd->sae_token_key)) < 0) | |
461 | return NULL; | |
d136c376 JM |
462 | wpa_hexdump(MSG_DEBUG, "SAE: Updated token key", |
463 | hapd->sae_token_key, sizeof(hapd->sae_token_key)); | |
fe52c210 | 464 | hapd->last_sae_token_key_update = now; |
d136c376 JM |
465 | } |
466 | ||
467 | buf = wpabuf_alloc(SHA256_MAC_LEN); | |
468 | if (buf == NULL) | |
469 | return NULL; | |
470 | ||
471 | token = wpabuf_put(buf, SHA256_MAC_LEN); | |
472 | hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
473 | addr, ETH_ALEN, token); | |
474 | ||
475 | return buf; | |
476 | } | |
477 | ||
478 | ||
e96da42b BC |
479 | static int sae_sm_step(struct hostapd_data *hapd, struct sta_info *sta, |
480 | const u8 *bssid, u8 auth_transaction) | |
481 | { | |
482 | int ret; | |
483 | ||
484 | if (auth_transaction != 1 && auth_transaction != 2) | |
485 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
486 | ||
487 | switch (sta->sae->state) { | |
488 | case SAE_NOTHING: | |
489 | if (auth_transaction == 1) { | |
490 | ret = auth_sae_send_commit(hapd, sta, bssid); | |
491 | if (ret) | |
492 | return ret; | |
493 | sta->sae->state = SAE_COMMITTED; | |
494 | ||
495 | if (sae_process_commit(sta->sae) < 0) | |
496 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
497 | ||
498 | /* | |
499 | * In mesh case, both Commit and Confirm can be sent | |
500 | * immediately. In infrastructure BSS, only a single | |
501 | * Authentication frame (Commit) is expected from the AP | |
502 | * here and the second one (Confirm) will be sent once | |
503 | * the STA has sent its second Authentication frame | |
504 | * (Confirm). | |
505 | */ | |
506 | if (hapd->conf->mesh & MESH_ENABLED) { | |
507 | /* | |
508 | * Send both Commit and Confirm immediately | |
509 | * based on SAE finite state machine | |
510 | * Nothing -> Confirm transition. | |
511 | */ | |
512 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
513 | if (ret) | |
514 | return ret; | |
515 | sta->sae->state = SAE_CONFIRMED; | |
516 | } else { | |
517 | /* | |
518 | * For infrastructure BSS, send only the Commit | |
519 | * message now to get alternating sequence of | |
520 | * Authentication frames between the AP and STA. | |
521 | * Confirm will be sent in | |
522 | * Commited -> Confirmed/Accepted transition | |
523 | * when receiving Confirm from STA. | |
524 | */ | |
525 | } | |
526 | } else { | |
527 | hostapd_logger(hapd, sta->addr, | |
528 | HOSTAPD_MODULE_IEEE80211, | |
529 | HOSTAPD_LEVEL_DEBUG, | |
530 | "SAE confirm before commit"); | |
531 | } | |
532 | break; | |
533 | case SAE_COMMITTED: | |
534 | if (auth_transaction == 1) { | |
535 | if (sae_process_commit(sta->sae) < 0) | |
536 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
537 | ||
538 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
539 | if (ret) | |
540 | return ret; | |
541 | sta->sae->state = SAE_CONFIRMED; | |
542 | } else if (hapd->conf->mesh & MESH_ENABLED) { | |
543 | /* | |
544 | * In mesh case, follow SAE finite state machine and | |
545 | * send Commit now. | |
546 | */ | |
547 | ret = auth_sae_send_commit(hapd, sta, bssid); | |
548 | if (ret) | |
549 | return ret; | |
550 | } else { | |
551 | /* | |
552 | * For instructure BSS, send the postponed Confirm from | |
553 | * Nothing -> Confirmed transition that was reduced to | |
554 | * Nothing -> Committed above. | |
555 | */ | |
556 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
557 | if (ret) | |
558 | return ret; | |
559 | ||
560 | sta->sae->state = SAE_CONFIRMED; | |
561 | ||
562 | /* | |
563 | * Since this was triggered on Confirm RX, run another | |
564 | * step to get to Accepted without waiting for | |
565 | * additional events. | |
566 | */ | |
567 | return sae_sm_step(hapd, sta, bssid, auth_transaction); | |
568 | } | |
569 | break; | |
570 | case SAE_CONFIRMED: | |
571 | if (auth_transaction == 1) { | |
572 | ret = auth_sae_send_commit(hapd, sta, bssid); | |
573 | if (ret) | |
574 | return ret; | |
575 | ||
576 | if (sae_process_commit(sta->sae) < 0) | |
577 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
578 | ||
579 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
580 | if (ret) | |
581 | return ret; | |
582 | } else { | |
583 | sta->flags |= WLAN_STA_AUTH; | |
584 | sta->auth_alg = WLAN_AUTH_SAE; | |
585 | mlme_authenticate_indication(hapd, sta); | |
586 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
587 | sta->sae->state = SAE_ACCEPTED; | |
588 | wpa_auth_pmksa_add_sae(hapd->wpa_auth, sta->addr, | |
589 | sta->sae->pmk); | |
590 | } | |
591 | break; | |
592 | case SAE_ACCEPTED: | |
593 | if (auth_transaction == 1) { | |
594 | wpa_printf(MSG_DEBUG, "SAE: remove the STA (" MACSTR | |
595 | ") doing reauthentication", | |
596 | MAC2STR(sta->addr)); | |
597 | ap_free_sta(hapd, sta); | |
598 | } else { | |
599 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
600 | sae_clear_temp_data(sta->sae); | |
601 | if (ret) | |
602 | return ret; | |
603 | } | |
604 | break; | |
605 | default: | |
606 | wpa_printf(MSG_ERROR, "SAE: invalid state %d", | |
607 | sta->sae->state); | |
608 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
609 | } | |
610 | return WLAN_STATUS_SUCCESS; | |
611 | } | |
612 | ||
613 | ||
c10347f2 JM |
614 | static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta, |
615 | const struct ieee80211_mgmt *mgmt, size_t len, | |
616 | u8 auth_transaction) | |
617 | { | |
618 | u16 resp = WLAN_STATUS_SUCCESS; | |
750efe6e | 619 | struct wpabuf *data = NULL; |
c10347f2 | 620 | |
98efcc41 | 621 | if (!sta->sae) { |
d136c376 JM |
622 | if (auth_transaction != 1) |
623 | return; | |
98efcc41 JM |
624 | sta->sae = os_zalloc(sizeof(*sta->sae)); |
625 | if (sta->sae == NULL) | |
626 | return; | |
dd43026a | 627 | sta->sae->state = SAE_NOTHING; |
98efcc41 JM |
628 | } |
629 | ||
c10347f2 | 630 | if (auth_transaction == 1) { |
d136c376 JM |
631 | const u8 *token = NULL; |
632 | size_t token_len = 0; | |
c10347f2 JM |
633 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
634 | HOSTAPD_LEVEL_DEBUG, | |
635 | "start SAE authentication (RX commit)"); | |
146f6c9a JM |
636 | resp = sae_parse_commit(sta->sae, mgmt->u.auth.variable, |
637 | ((const u8 *) mgmt) + len - | |
d136c376 | 638 | mgmt->u.auth.variable, &token, |
625f202a | 639 | &token_len, hapd->conf->sae_groups); |
d136c376 JM |
640 | if (token && check_sae_token(hapd, sta->addr, token, token_len) |
641 | < 0) { | |
642 | wpa_printf(MSG_DEBUG, "SAE: Drop commit message with " | |
643 | "incorrect token from " MACSTR, | |
644 | MAC2STR(sta->addr)); | |
645 | return; | |
646 | } | |
647 | ||
e96da42b BC |
648 | if (resp != WLAN_STATUS_SUCCESS) |
649 | goto reply; | |
650 | ||
651 | if (!token && use_sae_anti_clogging(hapd)) { | |
652 | wpa_printf(MSG_DEBUG, | |
653 | "SAE: Request anti-clogging token from " | |
654 | MACSTR, MAC2STR(sta->addr)); | |
655 | data = auth_build_token_req(hapd, sta->addr); | |
656 | resp = WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ; | |
657 | goto reply; | |
750efe6e | 658 | } |
e96da42b BC |
659 | |
660 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction); | |
c10347f2 | 661 | } else if (auth_transaction == 2) { |
c10347f2 JM |
662 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
663 | HOSTAPD_LEVEL_DEBUG, | |
664 | "SAE authentication (RX confirm)"); | |
e96da42b BC |
665 | if (sta->sae->state >= SAE_CONFIRMED || |
666 | !(hapd->conf->mesh & MESH_ENABLED)) { | |
667 | if (sae_check_confirm(sta->sae, mgmt->u.auth.variable, | |
668 | ((u8 *) mgmt) + len - | |
669 | mgmt->u.auth.variable) < 0) { | |
750efe6e | 670 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
e96da42b | 671 | goto reply; |
b4fd3613 | 672 | } |
21af6d15 | 673 | } |
e96da42b BC |
674 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction); |
675 | ||
c10347f2 JM |
676 | } else { |
677 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
678 | HOSTAPD_LEVEL_DEBUG, | |
679 | "unexpected SAE authentication transaction %u", | |
680 | auth_transaction); | |
681 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
682 | } | |
683 | ||
e96da42b BC |
684 | reply: |
685 | if (resp != WLAN_STATUS_SUCCESS) { | |
686 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
687 | auth_transaction, resp, | |
688 | data ? wpabuf_head(data) : (u8 *) "", | |
689 | data ? wpabuf_len(data) : 0); | |
690 | } | |
21af6d15 | 691 | wpabuf_free(data); |
c10347f2 JM |
692 | } |
693 | #endif /* CONFIG_SAE */ | |
694 | ||
695 | ||
b57e086c JM |
696 | static void handle_auth(struct hostapd_data *hapd, |
697 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b JM |
698 | { |
699 | u16 auth_alg, auth_transaction, status_code; | |
700 | u16 resp = WLAN_STATUS_SUCCESS; | |
701 | struct sta_info *sta = NULL; | |
702 | int res; | |
703 | u16 fc; | |
b57e086c | 704 | const u8 *challenge = NULL; |
6fc6879b JM |
705 | u32 session_timeout, acct_interim_interval; |
706 | int vlan_id = 0; | |
2ad3e6c8 | 707 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
6fc6879b JM |
708 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; |
709 | size_t resp_ies_len = 0; | |
2092597f MB |
710 | char *identity = NULL; |
711 | char *radius_cui = NULL; | |
38cb0a2d | 712 | u16 seq_ctrl; |
6fc6879b JM |
713 | |
714 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
715 | wpa_printf(MSG_INFO, "handle_auth - too short payload (len=%lu)", |
716 | (unsigned long) len); | |
6fc6879b JM |
717 | return; |
718 | } | |
719 | ||
c2aff6b1 | 720 | #ifdef CONFIG_TESTING_OPTIONS |
06df2aa6 | 721 | if (hapd->iconf->ignore_auth_probability > 0.0 && |
c2aff6b1 JB |
722 | drand48() < hapd->iconf->ignore_auth_probability) { |
723 | wpa_printf(MSG_INFO, | |
724 | "TESTING: ignoring auth frame from " MACSTR, | |
725 | MAC2STR(mgmt->sa)); | |
726 | return; | |
727 | } | |
728 | #endif /* CONFIG_TESTING_OPTIONS */ | |
729 | ||
6fc6879b JM |
730 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); |
731 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
732 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
733 | fc = le_to_host16(mgmt->frame_control); | |
38cb0a2d | 734 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); |
6fc6879b JM |
735 | |
736 | if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + | |
737 | 2 + WLAN_AUTH_CHALLENGE_LEN && | |
738 | mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && | |
739 | mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) | |
740 | challenge = &mgmt->u.auth.variable[2]; | |
741 | ||
742 | wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " | |
38cb0a2d IP |
743 | "auth_transaction=%d status_code=%d wep=%d%s " |
744 | "seq_ctrl=0x%x%s", | |
6fc6879b JM |
745 | MAC2STR(mgmt->sa), auth_alg, auth_transaction, |
746 | status_code, !!(fc & WLAN_FC_ISWEP), | |
38cb0a2d IP |
747 | challenge ? " challenge" : "", |
748 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
6fc6879b | 749 | |
6fc6879b JM |
750 | if (hapd->tkip_countermeasures) { |
751 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
752 | goto fail; | |
753 | } | |
754 | ||
755 | if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && | |
756 | auth_alg == WLAN_AUTH_OPEN) || | |
757 | #ifdef CONFIG_IEEE80211R | |
0bf927a0 | 758 | (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && |
6fc6879b JM |
759 | auth_alg == WLAN_AUTH_FT) || |
760 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
761 | #ifdef CONFIG_SAE |
762 | (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && | |
763 | auth_alg == WLAN_AUTH_SAE) || | |
764 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
765 | ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && |
766 | auth_alg == WLAN_AUTH_SHARED_KEY))) { | |
61323e70 JM |
767 | wpa_printf(MSG_INFO, "Unsupported authentication algorithm (%d)", |
768 | auth_alg); | |
6fc6879b JM |
769 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; |
770 | goto fail; | |
771 | } | |
772 | ||
c10347f2 | 773 | if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE || |
6fc6879b | 774 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { |
61323e70 JM |
775 | wpa_printf(MSG_INFO, "Unknown authentication transaction number (%d)", |
776 | auth_transaction); | |
6fc6879b JM |
777 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
778 | goto fail; | |
779 | } | |
780 | ||
781 | if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { | |
61323e70 JM |
782 | wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate", |
783 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
784 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
785 | goto fail; | |
786 | } | |
787 | ||
788 | res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len, | |
789 | &session_timeout, | |
05ab9712 | 790 | &acct_interim_interval, &vlan_id, |
2ad3e6c8 | 791 | &psk, &identity, &radius_cui); |
05ab9712 | 792 | |
6fc6879b | 793 | if (res == HOSTAPD_ACL_REJECT) { |
61323e70 JM |
794 | wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate", |
795 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
796 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
797 | goto fail; | |
798 | } | |
799 | if (res == HOSTAPD_ACL_PENDING) { | |
800 | wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR | |
801 | " waiting for an external authentication", | |
802 | MAC2STR(mgmt->sa)); | |
803 | /* Authentication code will re-send the authentication frame | |
804 | * after it has received (and cached) information from the | |
805 | * external source. */ | |
806 | return; | |
807 | } | |
808 | ||
38cb0a2d IP |
809 | sta = ap_get_sta(hapd, mgmt->sa); |
810 | if (sta) { | |
811 | if ((fc & WLAN_FC_RETRY) && | |
812 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
813 | sta->last_seq_ctrl == seq_ctrl && | |
814 | sta->last_subtype == WLAN_FC_STYPE_AUTH) { | |
815 | hostapd_logger(hapd, sta->addr, | |
816 | HOSTAPD_MODULE_IEEE80211, | |
817 | HOSTAPD_LEVEL_DEBUG, | |
818 | "Drop repeated authentication frame seq_ctrl=0x%x", | |
819 | seq_ctrl); | |
820 | return; | |
821 | } | |
822 | } else { | |
c50d94f1 | 823 | #ifdef CONFIG_MESH |
38cb0a2d IP |
824 | if (hapd->conf->mesh & MESH_ENABLED) { |
825 | /* if the mesh peer is not available, we don't do auth. | |
826 | */ | |
c50d94f1 | 827 | return; |
38cb0a2d | 828 | } |
c50d94f1 | 829 | #endif /* CONFIG_MESH */ |
38cb0a2d | 830 | |
c50d94f1 BC |
831 | sta = ap_sta_add(hapd, mgmt->sa); |
832 | if (!sta) { | |
833 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
834 | goto fail; | |
835 | } | |
6fc6879b | 836 | } |
38cb0a2d IP |
837 | sta->last_seq_ctrl = seq_ctrl; |
838 | sta->last_subtype = WLAN_FC_STYPE_AUTH; | |
6fc6879b JM |
839 | |
840 | if (vlan_id > 0) { | |
80ebfd95 | 841 | if (!hostapd_vlan_id_valid(hapd->conf->vlan, vlan_id)) { |
6fc6879b JM |
842 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, |
843 | HOSTAPD_LEVEL_INFO, "Invalid VLAN ID " | |
844 | "%d received from RADIUS server", | |
845 | vlan_id); | |
846 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
847 | goto fail; | |
848 | } | |
849 | sta->vlan_id = vlan_id; | |
850 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
851 | HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); | |
852 | } | |
853 | ||
f2a14be7 | 854 | hostapd_free_psk_list(sta->psk); |
5ee56c4e MB |
855 | if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) { |
856 | sta->psk = psk; | |
857 | psk = NULL; | |
05ab9712 | 858 | } else { |
05ab9712 MB |
859 | sta->psk = NULL; |
860 | } | |
861 | ||
2092597f MB |
862 | sta->identity = identity; |
863 | identity = NULL; | |
864 | sta->radius_cui = radius_cui; | |
865 | radius_cui = NULL; | |
866 | ||
6fc6879b JM |
867 | sta->flags &= ~WLAN_STA_PREAUTH; |
868 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
869 | ||
5843e1c9 | 870 | if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) |
6fc6879b JM |
871 | sta->acct_interim_interval = acct_interim_interval; |
872 | if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) | |
873 | ap_sta_session_timeout(hapd, sta, session_timeout); | |
874 | else | |
875 | ap_sta_no_session_timeout(hapd, sta); | |
876 | ||
877 | switch (auth_alg) { | |
878 | case WLAN_AUTH_OPEN: | |
879 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
880 | HOSTAPD_LEVEL_DEBUG, | |
881 | "authentication OK (open system)"); | |
6fc6879b JM |
882 | sta->flags |= WLAN_STA_AUTH; |
883 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
884 | sta->auth_alg = WLAN_AUTH_OPEN; | |
885 | mlme_authenticate_indication(hapd, sta); | |
6fc6879b JM |
886 | break; |
887 | case WLAN_AUTH_SHARED_KEY: | |
888 | resp = auth_shared_key(hapd, sta, auth_transaction, challenge, | |
889 | fc & WLAN_FC_ISWEP); | |
890 | sta->auth_alg = WLAN_AUTH_SHARED_KEY; | |
891 | mlme_authenticate_indication(hapd, sta); | |
892 | if (sta->challenge && auth_transaction == 1) { | |
893 | resp_ies[0] = WLAN_EID_CHALLENGE; | |
894 | resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; | |
895 | os_memcpy(resp_ies + 2, sta->challenge, | |
896 | WLAN_AUTH_CHALLENGE_LEN); | |
897 | resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; | |
898 | } | |
899 | break; | |
900 | #ifdef CONFIG_IEEE80211R | |
901 | case WLAN_AUTH_FT: | |
902 | sta->auth_alg = WLAN_AUTH_FT; | |
903 | if (sta->wpa_sm == NULL) | |
904 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e | 905 | sta->addr, NULL); |
6fc6879b JM |
906 | if (sta->wpa_sm == NULL) { |
907 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
908 | "state machine"); | |
909 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
910 | goto fail; | |
911 | } | |
912 | wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, | |
913 | auth_transaction, mgmt->u.auth.variable, | |
914 | len - IEEE80211_HDRLEN - | |
915 | sizeof(mgmt->u.auth), | |
916 | handle_auth_ft_finish, hapd); | |
917 | /* handle_auth_ft_finish() callback will complete auth. */ | |
918 | return; | |
919 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
920 | #ifdef CONFIG_SAE |
921 | case WLAN_AUTH_SAE: | |
c50d94f1 BC |
922 | #ifdef CONFIG_MESH |
923 | if (hapd->conf->mesh & MESH_ENABLED) { | |
924 | if (sta->wpa_sm == NULL) | |
925 | sta->wpa_sm = | |
926 | wpa_auth_sta_init(hapd->wpa_auth, | |
927 | sta->addr, NULL); | |
928 | if (sta->wpa_sm == NULL) { | |
929 | wpa_printf(MSG_DEBUG, | |
930 | "SAE: Failed to initialize WPA state machine"); | |
931 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
932 | goto fail; | |
933 | } | |
934 | } | |
935 | #endif /* CONFIG_MESH */ | |
c10347f2 JM |
936 | handle_auth_sae(hapd, sta, mgmt, len, auth_transaction); |
937 | return; | |
938 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
939 | } |
940 | ||
941 | fail: | |
2092597f MB |
942 | os_free(identity); |
943 | os_free(radius_cui); | |
f2a14be7 | 944 | hostapd_free_psk_list(psk); |
2092597f | 945 | |
6fc6879b JM |
946 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, |
947 | auth_transaction + 1, resp, resp_ies, resp_ies_len); | |
948 | } | |
949 | ||
950 | ||
d42a62b3 JM |
951 | static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) |
952 | { | |
2991469c JM |
953 | int i, j = 32, aid; |
954 | ||
d42a62b3 JM |
955 | /* get a unique AID */ |
956 | if (sta->aid > 0) { | |
957 | wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); | |
958 | return 0; | |
959 | } | |
960 | ||
2991469c JM |
961 | for (i = 0; i < AID_WORDS; i++) { |
962 | if (hapd->sta_aid[i] == (u32) -1) | |
963 | continue; | |
964 | for (j = 0; j < 32; j++) { | |
965 | if (!(hapd->sta_aid[i] & BIT(j))) | |
966 | break; | |
967 | } | |
968 | if (j < 32) | |
d42a62b3 | 969 | break; |
d42a62b3 | 970 | } |
2991469c JM |
971 | if (j == 32) |
972 | return -1; | |
973 | aid = i * 32 + j + 1; | |
974 | if (aid > 2007) | |
975 | return -1; | |
d42a62b3 | 976 | |
2991469c JM |
977 | sta->aid = aid; |
978 | hapd->sta_aid[i] |= BIT(j); | |
d42a62b3 JM |
979 | wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); |
980 | return 0; | |
981 | } | |
982 | ||
983 | ||
5586f500 JM |
984 | static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, |
985 | const u8 *ssid_ie, size_t ssid_ie_len) | |
6fc6879b | 986 | { |
5586f500 JM |
987 | if (ssid_ie == NULL) |
988 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 989 | |
5586f500 JM |
990 | if (ssid_ie_len != hapd->conf->ssid.ssid_len || |
991 | os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { | |
5586f500 JM |
992 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
993 | HOSTAPD_LEVEL_INFO, | |
994 | "Station tried to associate with unknown SSID " | |
b37d582e | 995 | "'%s'", wpa_ssid_txt(ssid_ie, ssid_ie_len)); |
5586f500 | 996 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
b0194fe0 JM |
997 | } |
998 | ||
5586f500 JM |
999 | return WLAN_STATUS_SUCCESS; |
1000 | } | |
6fc6879b | 1001 | |
6fc6879b | 1002 | |
5586f500 JM |
1003 | static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, |
1004 | const u8 *wmm_ie, size_t wmm_ie_len) | |
1005 | { | |
3ae0800c | 1006 | sta->flags &= ~WLAN_STA_WMM; |
5d061637 | 1007 | sta->qosinfo = 0; |
5586f500 | 1008 | if (wmm_ie && hapd->conf->wmm_enabled) { |
5f32f79c | 1009 | struct wmm_information_element *wmm; |
5f32f79c | 1010 | |
c84b868a | 1011 | if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) { |
6fc6879b JM |
1012 | hostapd_logger(hapd, sta->addr, |
1013 | HOSTAPD_MODULE_WPA, | |
1014 | HOSTAPD_LEVEL_DEBUG, | |
3ae0800c | 1015 | "invalid WMM element in association " |
6fc6879b | 1016 | "request"); |
5f32f79c EP |
1017 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
1018 | } | |
1019 | ||
1020 | sta->flags |= WLAN_STA_WMM; | |
1021 | wmm = (struct wmm_information_element *) wmm_ie; | |
5d061637 | 1022 | sta->qosinfo = wmm->qos_info; |
6fc6879b | 1023 | } |
5586f500 JM |
1024 | return WLAN_STATUS_SUCCESS; |
1025 | } | |
6fc6879b | 1026 | |
5586f500 JM |
1027 | |
1028 | static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, | |
1029 | struct ieee802_11_elems *elems) | |
1030 | { | |
1031 | if (!elems->supp_rates) { | |
1032 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
6fc6879b JM |
1033 | HOSTAPD_LEVEL_DEBUG, |
1034 | "No supported rates element in AssocReq"); | |
5586f500 | 1035 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1036 | } |
1037 | ||
3489cfb0 JM |
1038 | if (elems->supp_rates_len + elems->ext_supp_rates_len > |
1039 | sizeof(sta->supported_rates)) { | |
5586f500 | 1040 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
6fc6879b | 1041 | HOSTAPD_LEVEL_DEBUG, |
3489cfb0 JM |
1042 | "Invalid supported rates element length %d+%d", |
1043 | elems->supp_rates_len, | |
1044 | elems->ext_supp_rates_len); | |
5586f500 | 1045 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1046 | } |
1047 | ||
3489cfb0 JM |
1048 | sta->supported_rates_len = merge_byte_arrays( |
1049 | sta->supported_rates, sizeof(sta->supported_rates), | |
1050 | elems->supp_rates, elems->supp_rates_len, | |
1051 | elems->ext_supp_rates, elems->ext_supp_rates_len); | |
6fc6879b | 1052 | |
5586f500 JM |
1053 | return WLAN_STATUS_SUCCESS; |
1054 | } | |
1055 | ||
1056 | ||
c551700f KP |
1057 | static u16 check_ext_capab(struct hostapd_data *hapd, struct sta_info *sta, |
1058 | const u8 *ext_capab_ie, size_t ext_capab_ie_len) | |
1059 | { | |
1060 | #ifdef CONFIG_INTERWORKING | |
1061 | /* check for QoS Map support */ | |
1062 | if (ext_capab_ie_len >= 5) { | |
1063 | if (ext_capab_ie[4] & 0x01) | |
1064 | sta->qos_map_enabled = 1; | |
1065 | } | |
1066 | #endif /* CONFIG_INTERWORKING */ | |
1067 | ||
1068 | return WLAN_STATUS_SUCCESS; | |
1069 | } | |
1070 | ||
1071 | ||
5586f500 | 1072 | static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c | 1073 | const u8 *ies, size_t ies_len, int reassoc) |
5586f500 JM |
1074 | { |
1075 | struct ieee802_11_elems elems; | |
1076 | u16 resp; | |
ba091c06 | 1077 | const u8 *wpa_ie; |
5586f500 | 1078 | size_t wpa_ie_len; |
94ddef3e | 1079 | const u8 *p2p_dev_addr = NULL; |
5586f500 JM |
1080 | |
1081 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { | |
1082 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1083 | HOSTAPD_LEVEL_INFO, "Station sent an invalid " | |
1084 | "association request"); | |
1085 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1086 | } | |
1087 | ||
1088 | resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); | |
1089 | if (resp != WLAN_STATUS_SUCCESS) | |
1090 | return resp; | |
1091 | resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); | |
c551700f KP |
1092 | if (resp != WLAN_STATUS_SUCCESS) |
1093 | return resp; | |
1094 | resp = check_ext_capab(hapd, sta, elems.ext_capab, elems.ext_capab_len); | |
5586f500 JM |
1095 | if (resp != WLAN_STATUS_SUCCESS) |
1096 | return resp; | |
1097 | resp = copy_supp_rates(hapd, sta, &elems); | |
1098 | if (resp != WLAN_STATUS_SUCCESS) | |
1099 | return resp; | |
d45354be | 1100 | #ifdef CONFIG_IEEE80211N |
f39b07d7 | 1101 | resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities, |
5586f500 JM |
1102 | elems.ht_capabilities_len); |
1103 | if (resp != WLAN_STATUS_SUCCESS) | |
1104 | return resp; | |
29448243 JM |
1105 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && |
1106 | !(sta->flags & WLAN_STA_HT)) { | |
1107 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1108 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
1109 | "mandatory HT PHY - reject association"); | |
1110 | return WLAN_STATUS_ASSOC_DENIED_NO_HT; | |
1111 | } | |
d45354be | 1112 | #endif /* CONFIG_IEEE80211N */ |
5586f500 | 1113 | |
de3cdf35 MP |
1114 | #ifdef CONFIG_IEEE80211AC |
1115 | resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities, | |
1116 | elems.vht_capabilities_len); | |
1117 | if (resp != WLAN_STATUS_SUCCESS) | |
1118 | return resp; | |
8a458116 MK |
1119 | |
1120 | resp = set_sta_vht_opmode(hapd, sta, elems.vht_opmode_notif); | |
1121 | if (resp != WLAN_STATUS_SUCCESS) | |
1122 | return resp; | |
1123 | ||
140e850a MP |
1124 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && |
1125 | !(sta->flags & WLAN_STA_VHT)) { | |
1126 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1127 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
1128 | "mandatory VHT PHY - reject association"); | |
13b24a76 | 1129 | return WLAN_STATUS_ASSOC_DENIED_NO_VHT; |
140e850a | 1130 | } |
de3cdf35 MP |
1131 | #endif /* CONFIG_IEEE80211AC */ |
1132 | ||
94ddef3e JM |
1133 | #ifdef CONFIG_P2P |
1134 | if (elems.p2p) { | |
1135 | wpabuf_free(sta->p2p_ie); | |
1136 | sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, | |
1137 | P2P_IE_VENDOR_TYPE); | |
1138 | if (sta->p2p_ie) | |
1139 | p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); | |
1140 | } else { | |
1141 | wpabuf_free(sta->p2p_ie); | |
1142 | sta->p2p_ie = NULL; | |
1143 | } | |
1144 | #endif /* CONFIG_P2P */ | |
1145 | ||
6fc6879b JM |
1146 | if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { |
1147 | wpa_ie = elems.rsn_ie; | |
1148 | wpa_ie_len = elems.rsn_ie_len; | |
1149 | } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && | |
1150 | elems.wpa_ie) { | |
1151 | wpa_ie = elems.wpa_ie; | |
1152 | wpa_ie_len = elems.wpa_ie_len; | |
1153 | } else { | |
1154 | wpa_ie = NULL; | |
1155 | wpa_ie_len = 0; | |
1156 | } | |
5586f500 | 1157 | |
ad08c363 | 1158 | #ifdef CONFIG_WPS |
17f6b900 | 1159 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
c47cf42e JM |
1160 | if (hapd->conf->wps_state && elems.wps_ie) { |
1161 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " | |
1162 | "Request - assume WPS is used"); | |
1163 | sta->flags |= WLAN_STA_WPS; | |
1164 | wpabuf_free(sta->wps_ie); | |
16e46ec0 JM |
1165 | sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
1166 | WPS_IE_VENDOR_TYPE); | |
17f6b900 JM |
1167 | if (sta->wps_ie && wps_is_20(sta->wps_ie)) { |
1168 | wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); | |
1169 | sta->flags |= WLAN_STA_WPS2; | |
1170 | } | |
c47cf42e JM |
1171 | wpa_ie = NULL; |
1172 | wpa_ie_len = 0; | |
54f489be JM |
1173 | if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) { |
1174 | wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in " | |
1175 | "(Re)Association Request - reject"); | |
1176 | return WLAN_STATUS_INVALID_IE; | |
1177 | } | |
c47cf42e JM |
1178 | } else if (hapd->conf->wps_state && wpa_ie == NULL) { |
1179 | wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " | |
1180 | "(Re)Association Request - possible WPS use"); | |
1181 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
ad08c363 JM |
1182 | } else |
1183 | #endif /* CONFIG_WPS */ | |
6fc6879b | 1184 | if (hapd->conf->wpa && wpa_ie == NULL) { |
5586f500 JM |
1185 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1186 | HOSTAPD_LEVEL_INFO, | |
1187 | "No WPA/RSN IE in association request"); | |
1188 | return WLAN_STATUS_INVALID_IE; | |
6fc6879b JM |
1189 | } |
1190 | ||
1191 | if (hapd->conf->wpa && wpa_ie) { | |
1192 | int res; | |
1193 | wpa_ie -= 2; | |
1194 | wpa_ie_len += 2; | |
1195 | if (sta->wpa_sm == NULL) | |
1196 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e JM |
1197 | sta->addr, |
1198 | p2p_dev_addr); | |
6fc6879b | 1199 | if (sta->wpa_sm == NULL) { |
5586f500 JM |
1200 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " |
1201 | "state machine"); | |
1202 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b JM |
1203 | } |
1204 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
1205 | wpa_ie, wpa_ie_len, | |
1206 | elems.mdie, elems.mdie_len); | |
1207 | if (res == WPA_INVALID_GROUP) | |
1208 | resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; | |
1209 | else if (res == WPA_INVALID_PAIRWISE) | |
1210 | resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; | |
1211 | else if (res == WPA_INVALID_AKMP) | |
1212 | resp = WLAN_STATUS_AKMP_NOT_VALID; | |
1213 | else if (res == WPA_ALLOC_FAIL) | |
1214 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1215 | #ifdef CONFIG_IEEE80211W | |
1216 | else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) | |
9a9876bf | 1217 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b | 1218 | else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) |
9a9876bf | 1219 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b JM |
1220 | #endif /* CONFIG_IEEE80211W */ |
1221 | else if (res == WPA_INVALID_MDIE) | |
1222 | resp = WLAN_STATUS_INVALID_MDIE; | |
1223 | else if (res != WPA_IE_OK) | |
1224 | resp = WLAN_STATUS_INVALID_IE; | |
1225 | if (resp != WLAN_STATUS_SUCCESS) | |
5586f500 | 1226 | return resp; |
f3f7540e | 1227 | #ifdef CONFIG_IEEE80211W |
45c94154 JM |
1228 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
1229 | sta->sa_query_count > 0) | |
1230 | ap_check_sa_query_timeout(hapd, sta); | |
8f4617c6 JM |
1231 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
1232 | (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { | |
5d22a1d5 | 1233 | /* |
93b76319 JM |
1234 | * STA has already been associated with MFP and SA |
1235 | * Query timeout has not been reached. Reject the | |
1236 | * association attempt temporarily and start SA Query, | |
1237 | * if one is not pending. | |
5d22a1d5 JM |
1238 | */ |
1239 | ||
93b76319 JM |
1240 | if (sta->sa_query_count == 0) |
1241 | ap_sta_start_sa_query(hapd, sta); | |
5d22a1d5 | 1242 | |
5586f500 | 1243 | return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; |
5d22a1d5 JM |
1244 | } |
1245 | ||
f3f7540e JM |
1246 | if (wpa_auth_uses_mfp(sta->wpa_sm)) |
1247 | sta->flags |= WLAN_STA_MFP; | |
1248 | else | |
1249 | sta->flags &= ~WLAN_STA_MFP; | |
1250 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1251 | |
1252 | #ifdef CONFIG_IEEE80211R | |
1253 | if (sta->auth_alg == WLAN_AUTH_FT) { | |
1254 | if (!reassoc) { | |
1255 | wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " | |
1256 | "to use association (not " | |
1257 | "re-association) with FT auth_alg", | |
1258 | MAC2STR(sta->addr)); | |
5586f500 | 1259 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1260 | } |
1261 | ||
5586f500 JM |
1262 | resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, |
1263 | ies_len); | |
6fc6879b | 1264 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 1265 | return resp; |
6fc6879b JM |
1266 | } |
1267 | #endif /* CONFIG_IEEE80211R */ | |
5586f500 | 1268 | |
c10347f2 JM |
1269 | #ifdef CONFIG_SAE |
1270 | if (wpa_auth_uses_sae(sta->wpa_sm) && | |
f2991170 JM |
1271 | sta->auth_alg == WLAN_AUTH_OPEN) { |
1272 | struct rsn_pmksa_cache_entry *sa; | |
1273 | sa = wpa_auth_sta_get_pmksa(sta->wpa_sm); | |
1274 | if (!sa || sa->akmp != WPA_KEY_MGMT_SAE) { | |
1275 | wpa_printf(MSG_DEBUG, | |
1276 | "SAE: No PMKSA cache entry found for " | |
1277 | MACSTR, MAC2STR(sta->addr)); | |
1278 | return WLAN_STATUS_INVALID_PMKID; | |
1279 | } | |
1280 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR | |
1281 | " using PMKSA caching", MAC2STR(sta->addr)); | |
1282 | } else if (wpa_auth_uses_sae(sta->wpa_sm) && | |
1283 | sta->auth_alg != WLAN_AUTH_SAE && | |
1284 | !(sta->auth_alg == WLAN_AUTH_FT && | |
1285 | wpa_auth_uses_ft_sae(sta->wpa_sm))) { | |
c10347f2 JM |
1286 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use " |
1287 | "SAE AKM after non-SAE auth_alg %u", | |
1288 | MAC2STR(sta->addr), sta->auth_alg); | |
1289 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
1290 | } | |
1291 | #endif /* CONFIG_SAE */ | |
1292 | ||
ff36ff00 | 1293 | #ifdef CONFIG_IEEE80211N |
f0c7a986 | 1294 | if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) && |
ff36ff00 | 1295 | wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { |
5586f500 JM |
1296 | hostapd_logger(hapd, sta->addr, |
1297 | HOSTAPD_MODULE_IEEE80211, | |
1298 | HOSTAPD_LEVEL_INFO, | |
1299 | "Station tried to use TKIP with HT " | |
1300 | "association"); | |
1301 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; | |
ff36ff00 JM |
1302 | } |
1303 | #endif /* CONFIG_IEEE80211N */ | |
a14896e8 JM |
1304 | #ifdef CONFIG_HS20 |
1305 | } else if (hapd->conf->osen) { | |
1306 | if (elems.osen == NULL) { | |
1307 | hostapd_logger( | |
1308 | hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1309 | HOSTAPD_LEVEL_INFO, | |
1310 | "No HS 2.0 OSEN element in association request"); | |
1311 | return WLAN_STATUS_INVALID_IE; | |
1312 | } | |
1313 | ||
1314 | wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association"); | |
1315 | if (sta->wpa_sm == NULL) | |
1316 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
1317 | sta->addr, NULL); | |
1318 | if (sta->wpa_sm == NULL) { | |
1319 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " | |
1320 | "state machine"); | |
1321 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1322 | } | |
1323 | if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm, | |
1324 | elems.osen - 2, elems.osen_len + 2) < 0) | |
1325 | return WLAN_STATUS_INVALID_IE; | |
1326 | #endif /* CONFIG_HS20 */ | |
a8d05fca JM |
1327 | } else |
1328 | wpa_auth_sta_no_wpa(sta->wpa_sm); | |
6fc6879b | 1329 | |
b305c684 | 1330 | #ifdef CONFIG_P2P |
3f4ce13f | 1331 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len); |
b305c684 JM |
1332 | #endif /* CONFIG_P2P */ |
1333 | ||
f403dcd6 JM |
1334 | #ifdef CONFIG_HS20 |
1335 | wpabuf_free(sta->hs20_ie); | |
1336 | if (elems.hs20 && elems.hs20_len > 4) { | |
1337 | sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, | |
1338 | elems.hs20_len - 4); | |
1339 | } else | |
1340 | sta->hs20_ie = NULL; | |
1341 | #endif /* CONFIG_HS20 */ | |
1342 | ||
5586f500 JM |
1343 | return WLAN_STATUS_SUCCESS; |
1344 | } | |
1345 | ||
1346 | ||
1347 | static void send_deauth(struct hostapd_data *hapd, const u8 *addr, | |
1348 | u16 reason_code) | |
1349 | { | |
1350 | int send_len; | |
1351 | struct ieee80211_mgmt reply; | |
1352 | ||
1353 | os_memset(&reply, 0, sizeof(reply)); | |
1354 | reply.frame_control = | |
1355 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); | |
1356 | os_memcpy(reply.da, addr, ETH_ALEN); | |
1357 | os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); | |
1358 | os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); | |
1359 | ||
1360 | send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); | |
1361 | reply.u.deauth.reason_code = host_to_le16(reason_code); | |
1362 | ||
8cfa3527 | 1363 | if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0) |
5586f500 JM |
1364 | wpa_printf(MSG_INFO, "Failed to send deauth: %s", |
1365 | strerror(errno)); | |
1366 | } | |
1367 | ||
1368 | ||
1369 | static void send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, | |
b57e086c | 1370 | u16 status_code, int reassoc, const u8 *ies, |
5586f500 JM |
1371 | size_t ies_len) |
1372 | { | |
1373 | int send_len; | |
1374 | u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; | |
1375 | struct ieee80211_mgmt *reply; | |
1376 | u8 *p; | |
1377 | ||
1378 | os_memset(buf, 0, sizeof(buf)); | |
1379 | reply = (struct ieee80211_mgmt *) buf; | |
1380 | reply->frame_control = | |
1381 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
1382 | (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : | |
1383 | WLAN_FC_STYPE_ASSOC_RESP)); | |
1384 | os_memcpy(reply->da, sta->addr, ETH_ALEN); | |
1385 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
1386 | os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); | |
1387 | ||
1388 | send_len = IEEE80211_HDRLEN; | |
1389 | send_len += sizeof(reply->u.assoc_resp); | |
1390 | reply->u.assoc_resp.capab_info = | |
1391 | host_to_le16(hostapd_own_capab_info(hapd, sta, 0)); | |
1392 | reply->u.assoc_resp.status_code = host_to_le16(status_code); | |
93a1caec | 1393 | reply->u.assoc_resp.aid = host_to_le16(sta->aid | BIT(14) | BIT(15)); |
5586f500 JM |
1394 | /* Supported rates */ |
1395 | p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); | |
1396 | /* Extended supported rates */ | |
1397 | p = hostapd_eid_ext_supp_rates(hapd, p); | |
5586f500 JM |
1398 | |
1399 | #ifdef CONFIG_IEEE80211R | |
1400 | if (status_code == WLAN_STATUS_SUCCESS) { | |
1401 | /* IEEE 802.11r: Mobility Domain Information, Fast BSS | |
1402 | * Transition Information, RSN, [RIC Response] */ | |
1403 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, | |
1404 | buf + sizeof(buf) - p, | |
1405 | sta->auth_alg, ies, ies_len); | |
1406 | } | |
1407 | #endif /* CONFIG_IEEE80211R */ | |
1408 | ||
1409 | #ifdef CONFIG_IEEE80211W | |
1410 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) | |
1411 | p = hostapd_eid_assoc_comeback_time(hapd, sta, p); | |
1412 | #endif /* CONFIG_IEEE80211W */ | |
1413 | ||
1bc774a1 JM |
1414 | #ifdef CONFIG_IEEE80211N |
1415 | p = hostapd_eid_ht_capabilities(hapd, p); | |
1416 | p = hostapd_eid_ht_operation(hapd, p); | |
1417 | #endif /* CONFIG_IEEE80211N */ | |
1418 | ||
14708b50 MP |
1419 | #ifdef CONFIG_IEEE80211AC |
1420 | p = hostapd_eid_vht_capabilities(hapd, p); | |
1421 | p = hostapd_eid_vht_operation(hapd, p); | |
1422 | #endif /* CONFIG_IEEE80211AC */ | |
1423 | ||
1161ff1e | 1424 | p = hostapd_eid_ext_capab(hapd, p); |
b6668734 | 1425 | p = hostapd_eid_bss_max_idle_period(hapd, p); |
c551700f KP |
1426 | if (sta->qos_map_enabled) |
1427 | p = hostapd_eid_qos_map_set(hapd, p); | |
1161ff1e | 1428 | |
1bc774a1 JM |
1429 | if (sta->flags & WLAN_STA_WMM) |
1430 | p = hostapd_eid_wmm(hapd, p); | |
1431 | ||
ed7a09f9 | 1432 | #ifdef CONFIG_WPS |
71093e5e JM |
1433 | if ((sta->flags & WLAN_STA_WPS) || |
1434 | ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa)) { | |
ed7a09f9 JM |
1435 | struct wpabuf *wps = wps_build_assoc_resp_ie(); |
1436 | if (wps) { | |
1437 | os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps)); | |
1438 | p += wpabuf_len(wps); | |
1439 | wpabuf_free(wps); | |
1440 | } | |
1441 | } | |
1442 | #endif /* CONFIG_WPS */ | |
1443 | ||
8ccbe415 JM |
1444 | #ifdef CONFIG_P2P |
1445 | if (sta->p2p_ie) { | |
1446 | struct wpabuf *p2p_resp_ie; | |
1447 | enum p2p_status_code status; | |
1448 | switch (status_code) { | |
1449 | case WLAN_STATUS_SUCCESS: | |
1450 | status = P2P_SC_SUCCESS; | |
1451 | break; | |
1452 | case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: | |
1453 | status = P2P_SC_FAIL_LIMIT_REACHED; | |
1454 | break; | |
1455 | default: | |
1456 | status = P2P_SC_FAIL_INVALID_PARAMS; | |
1457 | break; | |
1458 | } | |
1459 | p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status); | |
1460 | if (p2p_resp_ie) { | |
1461 | os_memcpy(p, wpabuf_head(p2p_resp_ie), | |
1462 | wpabuf_len(p2p_resp_ie)); | |
1463 | p += wpabuf_len(p2p_resp_ie); | |
1464 | wpabuf_free(p2p_resp_ie); | |
1465 | } | |
1466 | } | |
1467 | #endif /* CONFIG_P2P */ | |
1468 | ||
962473c1 JM |
1469 | #ifdef CONFIG_P2P_MANAGER |
1470 | if (hapd->conf->p2p & P2P_MANAGE) | |
1471 | p = hostapd_eid_p2p_manage(hapd, p); | |
1472 | #endif /* CONFIG_P2P_MANAGER */ | |
1473 | ||
5586f500 JM |
1474 | send_len += p - reply->u.assoc_resp.variable; |
1475 | ||
8cfa3527 | 1476 | if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0) |
5586f500 JM |
1477 | wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", |
1478 | strerror(errno)); | |
1479 | } | |
1480 | ||
1481 | ||
1482 | static void handle_assoc(struct hostapd_data *hapd, | |
b57e086c JM |
1483 | const struct ieee80211_mgmt *mgmt, size_t len, |
1484 | int reassoc) | |
5586f500 | 1485 | { |
38cb0a2d | 1486 | u16 capab_info, listen_interval, seq_ctrl, fc; |
5586f500 | 1487 | u16 resp = WLAN_STATUS_SUCCESS; |
b57e086c | 1488 | const u8 *pos; |
5586f500 JM |
1489 | int left, i; |
1490 | struct sta_info *sta; | |
1491 | ||
1492 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : | |
1493 | sizeof(mgmt->u.assoc_req))) { | |
61323e70 JM |
1494 | wpa_printf(MSG_INFO, "handle_assoc(reassoc=%d) - too short payload (len=%lu)", |
1495 | reassoc, (unsigned long) len); | |
5586f500 JM |
1496 | return; |
1497 | } | |
1498 | ||
c2aff6b1 JB |
1499 | #ifdef CONFIG_TESTING_OPTIONS |
1500 | if (reassoc) { | |
06df2aa6 | 1501 | if (hapd->iconf->ignore_reassoc_probability > 0.0 && |
c2aff6b1 JB |
1502 | drand48() < hapd->iconf->ignore_reassoc_probability) { |
1503 | wpa_printf(MSG_INFO, | |
1504 | "TESTING: ignoring reassoc request from " | |
1505 | MACSTR, MAC2STR(mgmt->sa)); | |
1506 | return; | |
1507 | } | |
1508 | } else { | |
06df2aa6 | 1509 | if (hapd->iconf->ignore_assoc_probability > 0.0 && |
c2aff6b1 JB |
1510 | drand48() < hapd->iconf->ignore_assoc_probability) { |
1511 | wpa_printf(MSG_INFO, | |
1512 | "TESTING: ignoring assoc request from " | |
1513 | MACSTR, MAC2STR(mgmt->sa)); | |
1514 | return; | |
1515 | } | |
1516 | } | |
1517 | #endif /* CONFIG_TESTING_OPTIONS */ | |
1518 | ||
38cb0a2d IP |
1519 | fc = le_to_host16(mgmt->frame_control); |
1520 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
1521 | ||
5586f500 JM |
1522 | if (reassoc) { |
1523 | capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); | |
1524 | listen_interval = le_to_host16( | |
1525 | mgmt->u.reassoc_req.listen_interval); | |
1526 | wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR | |
1527 | " capab_info=0x%02x listen_interval=%d current_ap=" | |
38cb0a2d | 1528 | MACSTR " seq_ctrl=0x%x%s", |
5586f500 | 1529 | MAC2STR(mgmt->sa), capab_info, listen_interval, |
38cb0a2d IP |
1530 | MAC2STR(mgmt->u.reassoc_req.current_ap), |
1531 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
1532 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); |
1533 | pos = mgmt->u.reassoc_req.variable; | |
1534 | } else { | |
1535 | capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); | |
1536 | listen_interval = le_to_host16( | |
1537 | mgmt->u.assoc_req.listen_interval); | |
1538 | wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR | |
38cb0a2d IP |
1539 | " capab_info=0x%02x listen_interval=%d " |
1540 | "seq_ctrl=0x%x%s", | |
1541 | MAC2STR(mgmt->sa), capab_info, listen_interval, | |
1542 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
1543 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); |
1544 | pos = mgmt->u.assoc_req.variable; | |
1545 | } | |
1546 | ||
1547 | sta = ap_get_sta(hapd, mgmt->sa); | |
1548 | #ifdef CONFIG_IEEE80211R | |
1549 | if (sta && sta->auth_alg == WLAN_AUTH_FT && | |
1550 | (sta->flags & WLAN_STA_AUTH) == 0) { | |
1551 | wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " | |
1552 | "prior to authentication since it is using " | |
1553 | "over-the-DS FT", MAC2STR(mgmt->sa)); | |
1554 | } else | |
1555 | #endif /* CONFIG_IEEE80211R */ | |
1556 | if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { | |
1557 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1558 | HOSTAPD_LEVEL_INFO, "Station tried to " | |
1559 | "associate before authentication " | |
1560 | "(aid=%d flags=0x%x)", | |
1561 | sta ? sta->aid : -1, | |
1562 | sta ? sta->flags : 0); | |
1563 | send_deauth(hapd, mgmt->sa, | |
1564 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); | |
1565 | return; | |
1566 | } | |
1567 | ||
38cb0a2d IP |
1568 | if ((fc & WLAN_FC_RETRY) && |
1569 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
1570 | sta->last_seq_ctrl == seq_ctrl && | |
1571 | sta->last_subtype == reassoc ? WLAN_FC_STYPE_REASSOC_REQ : | |
1572 | WLAN_FC_STYPE_ASSOC_REQ) { | |
1573 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1574 | HOSTAPD_LEVEL_DEBUG, | |
1575 | "Drop repeated association frame seq_ctrl=0x%x", | |
1576 | seq_ctrl); | |
1577 | return; | |
1578 | } | |
1579 | sta->last_seq_ctrl = seq_ctrl; | |
1580 | sta->last_subtype = reassoc ? WLAN_FC_STYPE_REASSOC_REQ : | |
1581 | WLAN_FC_STYPE_ASSOC_REQ; | |
1582 | ||
5586f500 JM |
1583 | if (hapd->tkip_countermeasures) { |
1584 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
1585 | goto fail; | |
1586 | } | |
1587 | ||
1588 | if (listen_interval > hapd->conf->max_listen_interval) { | |
1589 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1590 | HOSTAPD_LEVEL_DEBUG, | |
1591 | "Too large Listen Interval (%d)", | |
1592 | listen_interval); | |
1593 | resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; | |
1594 | goto fail; | |
1595 | } | |
1596 | ||
1597 | /* followed by SSID and Supported rates; and HT capabilities if 802.11n | |
1598 | * is used */ | |
1599 | resp = check_assoc_ies(hapd, sta, pos, left, reassoc); | |
1600 | if (resp != WLAN_STATUS_SUCCESS) | |
1601 | goto fail; | |
1602 | ||
1603 | if (hostapd_get_aid(hapd, sta) < 0) { | |
1604 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1605 | HOSTAPD_LEVEL_INFO, "No room for more AIDs"); | |
1606 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
1607 | goto fail; | |
1608 | } | |
1609 | ||
1610 | sta->capability = capab_info; | |
1611 | sta->listen_interval = listen_interval; | |
1612 | ||
6fc6879b JM |
1613 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) |
1614 | sta->flags |= WLAN_STA_NONERP; | |
1615 | for (i = 0; i < sta->supported_rates_len; i++) { | |
1616 | if ((sta->supported_rates[i] & 0x7f) > 22) { | |
1617 | sta->flags &= ~WLAN_STA_NONERP; | |
1618 | break; | |
1619 | } | |
1620 | } | |
1621 | if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { | |
1622 | sta->nonerp_set = 1; | |
1623 | hapd->iface->num_sta_non_erp++; | |
1624 | if (hapd->iface->num_sta_non_erp == 1) | |
1625 | ieee802_11_set_beacons(hapd->iface); | |
1626 | } | |
1627 | ||
1628 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && | |
1629 | !sta->no_short_slot_time_set) { | |
1630 | sta->no_short_slot_time_set = 1; | |
1631 | hapd->iface->num_sta_no_short_slot_time++; | |
1632 | if (hapd->iface->current_mode->mode == | |
1633 | HOSTAPD_MODE_IEEE80211G && | |
1634 | hapd->iface->num_sta_no_short_slot_time == 1) | |
1635 | ieee802_11_set_beacons(hapd->iface); | |
1636 | } | |
1637 | ||
1638 | if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1639 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
1640 | else | |
1641 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
1642 | ||
1643 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
1644 | !sta->no_short_preamble_set) { | |
1645 | sta->no_short_preamble_set = 1; | |
1646 | hapd->iface->num_sta_no_short_preamble++; | |
1647 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G | |
1648 | && hapd->iface->num_sta_no_short_preamble == 1) | |
1649 | ieee802_11_set_beacons(hapd->iface); | |
1650 | } | |
1651 | ||
d45354be | 1652 | #ifdef CONFIG_IEEE80211N |
5586f500 | 1653 | update_ht_state(hapd, sta); |
d45354be | 1654 | #endif /* CONFIG_IEEE80211N */ |
de9289c8 | 1655 | |
6fc6879b JM |
1656 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1657 | HOSTAPD_LEVEL_DEBUG, | |
1658 | "association OK (aid %d)", sta->aid); | |
1659 | /* Station will be marked associated, after it acknowledges AssocResp | |
1660 | */ | |
b8281964 | 1661 | sta->flags |= WLAN_STA_ASSOC_REQ_OK; |
6fc6879b | 1662 | |
6f5c8dbd JM |
1663 | #ifdef CONFIG_IEEE80211W |
1664 | if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { | |
1665 | wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " | |
1666 | "SA Query procedure", reassoc ? "re" : ""); | |
1667 | /* TODO: Send a protected Disassociate frame to the STA using | |
1668 | * the old key and Reason Code "Previous Authentication no | |
1669 | * longer valid". Make sure this is only sent protected since | |
1670 | * unprotected frame would be received by the STA that is now | |
1671 | * trying to associate. | |
1672 | */ | |
1673 | } | |
1674 | #endif /* CONFIG_IEEE80211W */ | |
1675 | ||
6fc6879b JM |
1676 | /* Make sure that the previously registered inactivity timer will not |
1677 | * remove the STA immediately. */ | |
1678 | sta->timeout_next = STA_NULLFUNC; | |
1679 | ||
1680 | fail: | |
5586f500 | 1681 | send_assoc_resp(hapd, sta, resp, reassoc, pos, left); |
6fc6879b JM |
1682 | } |
1683 | ||
1684 | ||
6fc6879b | 1685 | static void handle_disassoc(struct hostapd_data *hapd, |
f8b1f695 | 1686 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
1687 | { |
1688 | struct sta_info *sta; | |
1689 | ||
1690 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { | |
61323e70 JM |
1691 | wpa_printf(MSG_INFO, "handle_disassoc - too short payload (len=%lu)", |
1692 | (unsigned long) len); | |
6fc6879b JM |
1693 | return; |
1694 | } | |
1695 | ||
1696 | wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", | |
1697 | MAC2STR(mgmt->sa), | |
1698 | le_to_host16(mgmt->u.disassoc.reason_code)); | |
1699 | ||
6fc6879b JM |
1700 | sta = ap_get_sta(hapd, mgmt->sa); |
1701 | if (sta == NULL) { | |
61323e70 JM |
1702 | wpa_printf(MSG_INFO, "Station " MACSTR " trying to disassociate, but it is not associated", |
1703 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
1704 | return; |
1705 | } | |
1706 | ||
ae055af4 | 1707 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 1708 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 | 1709 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK); |
6fc6879b JM |
1710 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); |
1711 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1712 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
1713 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
1714 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
1715 | /* Stop Accounting and IEEE 802.1X sessions, but leave the STA | |
1716 | * authenticated. */ | |
1717 | accounting_sta_stop(hapd, sta); | |
1718 | ieee802_1x_free_station(sta); | |
7d597d46 KP |
1719 | if (sta->ipaddr) |
1720 | hostapd_drv_br_delete_ip_neigh(hapd, sta->ipaddr); | |
51e2a27a | 1721 | hostapd_drv_sta_remove(hapd, sta->addr); |
6fc6879b JM |
1722 | |
1723 | if (sta->timeout_next == STA_NULLFUNC || | |
1724 | sta->timeout_next == STA_DISASSOC) { | |
1725 | sta->timeout_next = STA_DEAUTH; | |
1726 | eloop_cancel_timeout(ap_handle_timer, hapd, sta); | |
1727 | eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, | |
1728 | hapd, sta); | |
1729 | } | |
1730 | ||
1731 | mlme_disassociate_indication( | |
1732 | hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); | |
1733 | } | |
1734 | ||
1735 | ||
1736 | static void handle_deauth(struct hostapd_data *hapd, | |
f8b1f695 | 1737 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
1738 | { |
1739 | struct sta_info *sta; | |
1740 | ||
1741 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { | |
3ec1e902 JM |
1742 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short " |
1743 | "payload (len=%lu)", (unsigned long) len); | |
6fc6879b JM |
1744 | return; |
1745 | } | |
1746 | ||
3ec1e902 | 1747 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR |
24d75245 BG |
1748 | " reason_code=%d", |
1749 | MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code)); | |
6fc6879b | 1750 | |
6fc6879b JM |
1751 | sta = ap_get_sta(hapd, mgmt->sa); |
1752 | if (sta == NULL) { | |
3ec1e902 JM |
1753 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying " |
1754 | "to deauthenticate, but it is not authenticated", | |
24d75245 | 1755 | MAC2STR(mgmt->sa)); |
6fc6879b JM |
1756 | return; |
1757 | } | |
1758 | ||
ae055af4 | 1759 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 1760 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 JM |
1761 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | |
1762 | WLAN_STA_ASSOC_REQ_OK); | |
6fc6879b JM |
1763 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); |
1764 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1765 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
1766 | mlme_deauthenticate_indication( | |
1767 | hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); | |
1768 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
1769 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
1770 | ap_free_sta(hapd, sta); | |
1771 | } | |
1772 | ||
1773 | ||
1774 | static void handle_beacon(struct hostapd_data *hapd, | |
b57e086c | 1775 | const struct ieee80211_mgmt *mgmt, size_t len, |
6fc6879b JM |
1776 | struct hostapd_frame_info *fi) |
1777 | { | |
1778 | struct ieee802_11_elems elems; | |
1779 | ||
1780 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { | |
61323e70 JM |
1781 | wpa_printf(MSG_INFO, "handle_beacon - too short payload (len=%lu)", |
1782 | (unsigned long) len); | |
6fc6879b JM |
1783 | return; |
1784 | } | |
1785 | ||
3d536eb4 | 1786 | (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, |
6fc6879b JM |
1787 | len - (IEEE80211_HDRLEN + |
1788 | sizeof(mgmt->u.beacon)), &elems, | |
1789 | 0); | |
1790 | ||
6fc6879b JM |
1791 | ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); |
1792 | } | |
1793 | ||
1794 | ||
5d22a1d5 | 1795 | #ifdef CONFIG_IEEE80211W |
88b4b424 | 1796 | |
912b34f0 JM |
1797 | static int hostapd_sa_query_action(struct hostapd_data *hapd, |
1798 | const struct ieee80211_mgmt *mgmt, | |
1799 | size_t len) | |
5d22a1d5 | 1800 | { |
b57e086c | 1801 | const u8 *end; |
5d22a1d5 | 1802 | |
93b76319 JM |
1803 | end = mgmt->u.action.u.sa_query_resp.trans_id + |
1804 | WLAN_SA_QUERY_TR_ID_LEN; | |
5d22a1d5 | 1805 | if (((u8 *) mgmt) + len < end) { |
93b76319 | 1806 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action " |
5d22a1d5 | 1807 | "frame (len=%lu)", (unsigned long) len); |
912b34f0 | 1808 | return 0; |
5d22a1d5 JM |
1809 | } |
1810 | ||
d4370eac MP |
1811 | ieee802_11_sa_query_action(hapd, mgmt->sa, |
1812 | mgmt->u.action.u.sa_query_resp.action, | |
1813 | mgmt->u.action.u.sa_query_resp.trans_id); | |
912b34f0 | 1814 | return 1; |
5d22a1d5 | 1815 | } |
5d22a1d5 JM |
1816 | |
1817 | ||
c4e281fd JM |
1818 | static int robust_action_frame(u8 category) |
1819 | { | |
1820 | return category != WLAN_ACTION_PUBLIC && | |
1821 | category != WLAN_ACTION_HT; | |
1822 | } | |
9f64b827 | 1823 | #endif /* CONFIG_IEEE80211W */ |
c4e281fd JM |
1824 | |
1825 | ||
912b34f0 JM |
1826 | static int handle_action(struct hostapd_data *hapd, |
1827 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b | 1828 | { |
c4e281fd | 1829 | struct sta_info *sta; |
46eeedac | 1830 | sta = ap_get_sta(hapd, mgmt->sa); |
c4e281fd | 1831 | |
6fc6879b JM |
1832 | if (len < IEEE80211_HDRLEN + 1) { |
1833 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1834 | HOSTAPD_LEVEL_DEBUG, | |
1835 | "handle_action - too short payload (len=%lu)", | |
1836 | (unsigned long) len); | |
912b34f0 | 1837 | return 0; |
6fc6879b JM |
1838 | } |
1839 | ||
c79938a5 JM |
1840 | if (mgmt->u.action.category != WLAN_ACTION_PUBLIC && |
1841 | (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { | |
1842 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action " | |
1843 | "frame (category=%u) from unassociated STA " MACSTR, | |
1844 | MAC2STR(mgmt->sa), mgmt->u.action.category); | |
912b34f0 | 1845 | return 0; |
c79938a5 JM |
1846 | } |
1847 | ||
c4e281fd JM |
1848 | #ifdef CONFIG_IEEE80211W |
1849 | if (sta && (sta->flags & WLAN_STA_MFP) && | |
7b2c42f8 JM |
1850 | !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP)) && |
1851 | robust_action_frame(mgmt->u.action.category)) { | |
c4e281fd JM |
1852 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
1853 | HOSTAPD_LEVEL_DEBUG, | |
1854 | "Dropped unprotected Robust Action frame from " | |
1855 | "an MFP STA"); | |
912b34f0 | 1856 | return 0; |
c4e281fd JM |
1857 | } |
1858 | #endif /* CONFIG_IEEE80211W */ | |
1859 | ||
38cb0a2d IP |
1860 | if (sta) { |
1861 | u16 fc = le_to_host16(mgmt->frame_control); | |
1862 | u16 seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
1863 | ||
1864 | if ((fc & WLAN_FC_RETRY) && | |
1865 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
1866 | sta->last_seq_ctrl == seq_ctrl && | |
1867 | sta->last_subtype == WLAN_FC_STYPE_ACTION) { | |
1868 | hostapd_logger(hapd, sta->addr, | |
1869 | HOSTAPD_MODULE_IEEE80211, | |
1870 | HOSTAPD_LEVEL_DEBUG, | |
1871 | "Drop repeated action frame seq_ctrl=0x%x", | |
1872 | seq_ctrl); | |
1873 | return 1; | |
1874 | } | |
1875 | ||
1876 | sta->last_seq_ctrl = seq_ctrl; | |
1877 | sta->last_subtype = WLAN_FC_STYPE_ACTION; | |
1878 | } | |
1879 | ||
6fc6879b JM |
1880 | switch (mgmt->u.action.category) { |
1881 | #ifdef CONFIG_IEEE80211R | |
1882 | case WLAN_ACTION_FT: | |
d6c6b1fb JM |
1883 | if (!sta || |
1884 | wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, | |
6fc6879b JM |
1885 | len - IEEE80211_HDRLEN)) |
1886 | break; | |
912b34f0 | 1887 | return 1; |
6fc6879b | 1888 | #endif /* CONFIG_IEEE80211R */ |
c2a71408 | 1889 | case WLAN_ACTION_WMM: |
3ae0800c | 1890 | hostapd_wmm_action(hapd, mgmt, len); |
912b34f0 | 1891 | return 1; |
5d22a1d5 | 1892 | #ifdef CONFIG_IEEE80211W |
93b76319 | 1893 | case WLAN_ACTION_SA_QUERY: |
912b34f0 | 1894 | return hostapd_sa_query_action(hapd, mgmt, len); |
5d22a1d5 | 1895 | #endif /* CONFIG_IEEE80211W */ |
c79938a5 JM |
1896 | #ifdef CONFIG_WNM |
1897 | case WLAN_ACTION_WNM: | |
dbfb8e82 JM |
1898 | ieee802_11_rx_wnm_action_ap(hapd, mgmt, len); |
1899 | return 1; | |
c79938a5 | 1900 | #endif /* CONFIG_WNM */ |
c706d5aa | 1901 | case WLAN_ACTION_PUBLIC: |
5ce00d09 | 1902 | case WLAN_ACTION_PROTECTED_DUAL: |
587d60d2 PX |
1903 | #ifdef CONFIG_IEEE80211N |
1904 | if (mgmt->u.action.u.public_action.action == | |
1905 | WLAN_PA_20_40_BSS_COEX) { | |
1906 | wpa_printf(MSG_DEBUG, | |
1907 | "HT20/40 coex mgmt frame received from STA " | |
1908 | MACSTR, MAC2STR(mgmt->sa)); | |
1909 | hostapd_2040_coex_action(hapd, mgmt, len); | |
1910 | } | |
1911 | #endif /* CONFIG_IEEE80211N */ | |
c706d5aa JM |
1912 | if (hapd->public_action_cb) { |
1913 | hapd->public_action_cb(hapd->public_action_cb_ctx, | |
1914 | (u8 *) mgmt, len, | |
1915 | hapd->iface->freq); | |
c706d5aa | 1916 | } |
2d9ffe1e | 1917 | if (hapd->public_action_cb2) { |
8dabf4bb | 1918 | hapd->public_action_cb2(hapd->public_action_cb2_ctx, |
2d9ffe1e JM |
1919 | (u8 *) mgmt, len, |
1920 | hapd->iface->freq); | |
1921 | } | |
1922 | if (hapd->public_action_cb || hapd->public_action_cb2) | |
912b34f0 | 1923 | return 1; |
c706d5aa | 1924 | break; |
e44f8bf2 JM |
1925 | case WLAN_ACTION_VENDOR_SPECIFIC: |
1926 | if (hapd->vendor_action_cb) { | |
1927 | if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx, | |
1928 | (u8 *) mgmt, len, | |
1929 | hapd->iface->freq) == 0) | |
912b34f0 | 1930 | return 1; |
e44f8bf2 JM |
1931 | } |
1932 | break; | |
6fc6879b JM |
1933 | } |
1934 | ||
1935 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1936 | HOSTAPD_LEVEL_DEBUG, | |
1937 | "handle_action - unknown action category %d or invalid " | |
1938 | "frame", | |
1939 | mgmt->u.action.category); | |
1940 | if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) && | |
1941 | !(mgmt->sa[0] & 0x01)) { | |
b57e086c JM |
1942 | struct ieee80211_mgmt *resp; |
1943 | ||
6fc6879b JM |
1944 | /* |
1945 | * IEEE 802.11-REVma/D9.0 - 7.3.1.11 | |
1946 | * Return the Action frame to the source without change | |
1947 | * except that MSB of the Category set to 1. | |
1948 | */ | |
1949 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " | |
1950 | "frame back to sender"); | |
b57e086c JM |
1951 | resp = os_malloc(len); |
1952 | if (resp == NULL) | |
912b34f0 | 1953 | return 0; |
b57e086c JM |
1954 | os_memcpy(resp, mgmt, len); |
1955 | os_memcpy(resp->da, resp->sa, ETH_ALEN); | |
1956 | os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); | |
1957 | os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); | |
1958 | resp->u.action.category |= 0x80; | |
1959 | ||
41fe8b42 JM |
1960 | if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) { |
1961 | wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send " | |
1962 | "Action frame"); | |
1963 | } | |
b57e086c | 1964 | os_free(resp); |
6fc6879b | 1965 | } |
912b34f0 JM |
1966 | |
1967 | return 1; | |
6fc6879b JM |
1968 | } |
1969 | ||
1970 | ||
1971 | /** | |
1972 | * ieee802_11_mgmt - process incoming IEEE 802.11 management frames | |
1973 | * @hapd: hostapd BSS data structure (the BSS to which the management frame was | |
1974 | * sent to) | |
1975 | * @buf: management frame data (starting from IEEE 802.11 header) | |
1976 | * @len: length of frame data in octets | |
a17df5fb | 1977 | * @fi: meta data about received frame (signal level, etc.) |
6fc6879b JM |
1978 | * |
1979 | * Process all incoming IEEE 802.11 management frames. This will be called for | |
1980 | * each frame received from the kernel driver through wlan#ap interface. In | |
1981 | * addition, it can be called to re-inserted pending frames (e.g., when using | |
1982 | * external RADIUS server as an MAC ACL). | |
1983 | */ | |
912b34f0 JM |
1984 | int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, |
1985 | struct hostapd_frame_info *fi) | |
6fc6879b | 1986 | { |
f8b1f695 | 1987 | struct ieee80211_mgmt *mgmt; |
6fc6879b | 1988 | int broadcast; |
f8b1f695 | 1989 | u16 fc, stype; |
912b34f0 | 1990 | int ret = 0; |
f8b1f695 | 1991 | |
cbcf92b4 | 1992 | if (len < 24) |
912b34f0 | 1993 | return 0; |
cbcf92b4 | 1994 | |
f8b1f695 JM |
1995 | mgmt = (struct ieee80211_mgmt *) buf; |
1996 | fc = le_to_host16(mgmt->frame_control); | |
1997 | stype = WLAN_FC_GET_STYPE(fc); | |
6fc6879b JM |
1998 | |
1999 | if (stype == WLAN_FC_STYPE_BEACON) { | |
2000 | handle_beacon(hapd, mgmt, len, fi); | |
912b34f0 | 2001 | return 1; |
6fc6879b JM |
2002 | } |
2003 | ||
6fc6879b JM |
2004 | broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff && |
2005 | mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff && | |
2006 | mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff; | |
2007 | ||
2008 | if (!broadcast && | |
3eeee931 AN |
2009 | #ifdef CONFIG_P2P |
2010 | /* Invitation responses can be sent with the peer MAC as BSSID */ | |
2011 | !((hapd->conf->p2p & P2P_GROUP_OWNER) && | |
2012 | stype == WLAN_FC_STYPE_ACTION) && | |
2013 | #endif /* CONFIG_P2P */ | |
f3e9899e BC |
2014 | #ifdef CONFIG_MESH |
2015 | !(hapd->conf->mesh & MESH_ENABLED) && | |
2016 | #endif /* CONFIG_MESH */ | |
fe2c5241 | 2017 | os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { |
61323e70 JM |
2018 | wpa_printf(MSG_INFO, "MGMT: BSSID=" MACSTR " not our address", |
2019 | MAC2STR(mgmt->bssid)); | |
912b34f0 | 2020 | return 0; |
6fc6879b JM |
2021 | } |
2022 | ||
2023 | ||
2024 | if (stype == WLAN_FC_STYPE_PROBE_REQ) { | |
baf513d6 | 2025 | handle_probe_req(hapd, mgmt, len, fi->ssi_signal); |
912b34f0 | 2026 | return 1; |
6fc6879b JM |
2027 | } |
2028 | ||
2029 | if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { | |
2030 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2031 | HOSTAPD_LEVEL_DEBUG, | |
2032 | "MGMT: DA=" MACSTR " not our address", | |
2033 | MAC2STR(mgmt->da)); | |
912b34f0 | 2034 | return 0; |
6fc6879b JM |
2035 | } |
2036 | ||
2037 | switch (stype) { | |
2038 | case WLAN_FC_STYPE_AUTH: | |
2039 | wpa_printf(MSG_DEBUG, "mgmt::auth"); | |
2040 | handle_auth(hapd, mgmt, len); | |
912b34f0 | 2041 | ret = 1; |
6fc6879b JM |
2042 | break; |
2043 | case WLAN_FC_STYPE_ASSOC_REQ: | |
2044 | wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); | |
2045 | handle_assoc(hapd, mgmt, len, 0); | |
912b34f0 | 2046 | ret = 1; |
6fc6879b | 2047 | break; |
6fc6879b JM |
2048 | case WLAN_FC_STYPE_REASSOC_REQ: |
2049 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); | |
2050 | handle_assoc(hapd, mgmt, len, 1); | |
912b34f0 | 2051 | ret = 1; |
6fc6879b JM |
2052 | break; |
2053 | case WLAN_FC_STYPE_DISASSOC: | |
2054 | wpa_printf(MSG_DEBUG, "mgmt::disassoc"); | |
2055 | handle_disassoc(hapd, mgmt, len); | |
912b34f0 | 2056 | ret = 1; |
6fc6879b JM |
2057 | break; |
2058 | case WLAN_FC_STYPE_DEAUTH: | |
3ec1e902 | 2059 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth"); |
6fc6879b | 2060 | handle_deauth(hapd, mgmt, len); |
912b34f0 | 2061 | ret = 1; |
6fc6879b JM |
2062 | break; |
2063 | case WLAN_FC_STYPE_ACTION: | |
2064 | wpa_printf(MSG_DEBUG, "mgmt::action"); | |
912b34f0 | 2065 | ret = handle_action(hapd, mgmt, len); |
6fc6879b JM |
2066 | break; |
2067 | default: | |
2068 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2069 | HOSTAPD_LEVEL_DEBUG, | |
2070 | "unknown mgmt frame subtype %d", stype); | |
2071 | break; | |
2072 | } | |
912b34f0 JM |
2073 | |
2074 | return ret; | |
6fc6879b JM |
2075 | } |
2076 | ||
2077 | ||
2078 | static void handle_auth_cb(struct hostapd_data *hapd, | |
f8b1f695 | 2079 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
2080 | size_t len, int ok) |
2081 | { | |
2082 | u16 auth_alg, auth_transaction, status_code; | |
2083 | struct sta_info *sta; | |
2084 | ||
2085 | if (!ok) { | |
2086 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
2087 | HOSTAPD_LEVEL_NOTICE, | |
2088 | "did not acknowledge authentication response"); | |
2089 | return; | |
2090 | } | |
2091 | ||
2092 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
2093 | wpa_printf(MSG_INFO, "handle_auth_cb - too short payload (len=%lu)", |
2094 | (unsigned long) len); | |
6fc6879b JM |
2095 | return; |
2096 | } | |
2097 | ||
2098 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
2099 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
2100 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
2101 | ||
2102 | sta = ap_get_sta(hapd, mgmt->da); | |
2103 | if (!sta) { | |
61323e70 JM |
2104 | wpa_printf(MSG_INFO, "handle_auth_cb: STA " MACSTR " not found", |
2105 | MAC2STR(mgmt->da)); | |
6fc6879b JM |
2106 | return; |
2107 | } | |
2108 | ||
2109 | if (status_code == WLAN_STATUS_SUCCESS && | |
2110 | ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || | |
2111 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { | |
2112 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2113 | HOSTAPD_LEVEL_INFO, "authenticated"); | |
2114 | sta->flags |= WLAN_STA_AUTH; | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | ||
69dd2967 SM |
2119 | static void hostapd_set_wds_encryption(struct hostapd_data *hapd, |
2120 | struct sta_info *sta, | |
2121 | char *ifname_wds) | |
2122 | { | |
2123 | int i; | |
2124 | struct hostapd_ssid *ssid = sta->ssid; | |
2125 | ||
2126 | if (hapd->conf->ieee802_1x || hapd->conf->wpa) | |
2127 | return; | |
2128 | ||
2129 | for (i = 0; i < 4; i++) { | |
2130 | if (ssid->wep.key[i] && | |
2131 | hostapd_drv_set_key(ifname_wds, hapd, WPA_ALG_WEP, NULL, i, | |
2132 | i == ssid->wep.idx, NULL, 0, | |
2133 | ssid->wep.key[i], ssid->wep.len[i])) { | |
2134 | wpa_printf(MSG_WARNING, | |
2135 | "Could not set WEP keys for WDS interface; %s", | |
2136 | ifname_wds); | |
2137 | break; | |
2138 | } | |
2139 | } | |
2140 | } | |
2141 | ||
2142 | ||
6fc6879b | 2143 | static void handle_assoc_cb(struct hostapd_data *hapd, |
f8b1f695 | 2144 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
2145 | size_t len, int reassoc, int ok) |
2146 | { | |
2147 | u16 status; | |
2148 | struct sta_info *sta; | |
2149 | int new_assoc = 1; | |
fc4e2d95 | 2150 | struct ieee80211_ht_capabilities ht_cap; |
a9a1d0f0 | 2151 | struct ieee80211_vht_capabilities vht_cap; |
6fc6879b | 2152 | |
6fc6879b JM |
2153 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : |
2154 | sizeof(mgmt->u.assoc_resp))) { | |
61323e70 JM |
2155 | wpa_printf(MSG_INFO, "handle_assoc_cb(reassoc=%d) - too short payload (len=%lu)", |
2156 | reassoc, (unsigned long) len); | |
6fc6879b JM |
2157 | return; |
2158 | } | |
2159 | ||
6fc6879b JM |
2160 | sta = ap_get_sta(hapd, mgmt->da); |
2161 | if (!sta) { | |
61323e70 JM |
2162 | wpa_printf(MSG_INFO, "handle_assoc_cb: STA " MACSTR " not found", |
2163 | MAC2STR(mgmt->da)); | |
6fc6879b JM |
2164 | return; |
2165 | } | |
2166 | ||
22b42372 FF |
2167 | if (!ok) { |
2168 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
2169 | HOSTAPD_LEVEL_DEBUG, | |
2170 | "did not acknowledge association response"); | |
2171 | sta->flags &= ~WLAN_STA_ASSOC_REQ_OK; | |
2172 | return; | |
2173 | } | |
2174 | ||
2175 | if (reassoc) | |
2176 | status = le_to_host16(mgmt->u.reassoc_resp.status_code); | |
2177 | else | |
2178 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
2179 | ||
6fc6879b | 2180 | if (status != WLAN_STATUS_SUCCESS) |
5bdac4ab | 2181 | return; |
6fc6879b JM |
2182 | |
2183 | /* Stop previous accounting session, if one is started, and allocate | |
2184 | * new session id for the new session. */ | |
2185 | accounting_sta_stop(hapd, sta); | |
6fc6879b JM |
2186 | |
2187 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2188 | HOSTAPD_LEVEL_INFO, | |
2fc98d02 JM |
2189 | "associated (aid %d)", |
2190 | sta->aid); | |
6fc6879b JM |
2191 | |
2192 | if (sta->flags & WLAN_STA_ASSOC) | |
2193 | new_assoc = 0; | |
2194 | sta->flags |= WLAN_STA_ASSOC; | |
3578e665 | 2195 | sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE; |
a14896e8 | 2196 | if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen) || |
ef580012 JM |
2197 | sta->auth_alg == WLAN_AUTH_FT) { |
2198 | /* | |
2199 | * Open, static WEP, or FT protocol; no separate authorization | |
2200 | * step. | |
2201 | */ | |
6905dcb1 | 2202 | ap_sta_set_authorized(hapd, sta, 1); |
515cf93f | 2203 | } |
6fc6879b JM |
2204 | |
2205 | if (reassoc) | |
2206 | mlme_reassociate_indication(hapd, sta); | |
2207 | else | |
2208 | mlme_associate_indication(hapd, sta); | |
2209 | ||
5d22a1d5 | 2210 | #ifdef CONFIG_IEEE80211W |
93b76319 | 2211 | sta->sa_query_timed_out = 0; |
5d22a1d5 JM |
2212 | #endif /* CONFIG_IEEE80211W */ |
2213 | ||
c140a228 JM |
2214 | /* |
2215 | * Remove the STA entry in order to make sure the STA PS state gets | |
2216 | * cleared and configuration gets updated in case of reassociation back | |
2217 | * to the same AP. | |
2218 | */ | |
51e2a27a | 2219 | hostapd_drv_sta_remove(hapd, sta->addr); |
c140a228 | 2220 | |
d45354be JM |
2221 | #ifdef CONFIG_IEEE80211N |
2222 | if (sta->flags & WLAN_STA_HT) | |
2223 | hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); | |
2224 | #endif /* CONFIG_IEEE80211N */ | |
a9a1d0f0 JB |
2225 | #ifdef CONFIG_IEEE80211AC |
2226 | if (sta->flags & WLAN_STA_VHT) | |
2227 | hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap); | |
2228 | #endif /* CONFIG_IEEE80211AC */ | |
d45354be | 2229 | |
0e8a96a9 JM |
2230 | if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability, |
2231 | sta->supported_rates, sta->supported_rates_len, | |
2232 | sta->listen_interval, | |
d83ab1fe | 2233 | sta->flags & WLAN_STA_HT ? &ht_cap : NULL, |
a9a1d0f0 | 2234 | sta->flags & WLAN_STA_VHT ? &vht_cap : NULL, |
8a458116 | 2235 | sta->flags, sta->qosinfo, sta->vht_opmode)) { |
6fc6879b JM |
2236 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
2237 | HOSTAPD_LEVEL_NOTICE, | |
2238 | "Could not add STA to kernel driver"); | |
8666585b YAP |
2239 | |
2240 | ap_sta_disconnect(hapd, sta, sta->addr, | |
2241 | WLAN_REASON_DISASSOC_AP_BUSY); | |
2242 | ||
5bdac4ab | 2243 | return; |
6fc6879b JM |
2244 | } |
2245 | ||
69dd2967 SM |
2246 | if (sta->flags & WLAN_STA_WDS) { |
2247 | int ret; | |
2248 | char ifname_wds[IFNAMSIZ + 1]; | |
2249 | ||
2250 | ret = hostapd_set_wds_sta(hapd, ifname_wds, sta->addr, | |
2251 | sta->aid, 1); | |
2252 | if (!ret) | |
2253 | hostapd_set_wds_encryption(hapd, sta, ifname_wds); | |
2254 | } | |
7826ceae | 2255 | |
6fc6879b JM |
2256 | if (sta->eapol_sm == NULL) { |
2257 | /* | |
2258 | * This STA does not use RADIUS server for EAP authentication, | |
2259 | * so bind it to the selected VLAN interface now, since the | |
2260 | * interface selection is not going to change anymore. | |
2261 | */ | |
4254100d | 2262 | if (ap_sta_bind_vlan(hapd, sta, 0) < 0) |
5bdac4ab | 2263 | return; |
6fc6879b JM |
2264 | } else if (sta->vlan_id) { |
2265 | /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ | |
4254100d | 2266 | if (ap_sta_bind_vlan(hapd, sta, 0) < 0) |
5bdac4ab | 2267 | return; |
6fc6879b | 2268 | } |
eddd8010 | 2269 | |
0e8a96a9 | 2270 | hostapd_set_sta_flags(hapd, sta); |
6fc6879b JM |
2271 | |
2272 | if (sta->auth_alg == WLAN_AUTH_FT) | |
2273 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
2274 | else | |
2275 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
d24df7c3 | 2276 | hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); |
6fc6879b JM |
2277 | |
2278 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); | |
6fc6879b JM |
2279 | } |
2280 | ||
2281 | ||
4dc03726 JM |
2282 | static void handle_deauth_cb(struct hostapd_data *hapd, |
2283 | const struct ieee80211_mgmt *mgmt, | |
2284 | size_t len, int ok) | |
2285 | { | |
2286 | struct sta_info *sta; | |
2287 | if (mgmt->da[0] & 0x01) | |
2288 | return; | |
2289 | sta = ap_get_sta(hapd, mgmt->da); | |
2290 | if (!sta) { | |
2291 | wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR | |
2292 | " not found", MAC2STR(mgmt->da)); | |
2293 | return; | |
2294 | } | |
2295 | if (ok) | |
2296 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth", | |
2297 | MAC2STR(sta->addr)); | |
2298 | else | |
2299 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
2300 | "deauth", MAC2STR(sta->addr)); | |
2301 | ||
2302 | ap_sta_deauth_cb(hapd, sta); | |
2303 | } | |
2304 | ||
2305 | ||
2306 | static void handle_disassoc_cb(struct hostapd_data *hapd, | |
2307 | const struct ieee80211_mgmt *mgmt, | |
2308 | size_t len, int ok) | |
2309 | { | |
2310 | struct sta_info *sta; | |
2311 | if (mgmt->da[0] & 0x01) | |
2312 | return; | |
2313 | sta = ap_get_sta(hapd, mgmt->da); | |
2314 | if (!sta) { | |
2315 | wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR | |
2316 | " not found", MAC2STR(mgmt->da)); | |
2317 | return; | |
2318 | } | |
2319 | if (ok) | |
2320 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc", | |
2321 | MAC2STR(sta->addr)); | |
2322 | else | |
2323 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
2324 | "disassoc", MAC2STR(sta->addr)); | |
2325 | ||
2326 | ap_sta_disassoc_cb(hapd, sta); | |
2327 | } | |
2328 | ||
2329 | ||
1c6e69cc JM |
2330 | /** |
2331 | * ieee802_11_mgmt_cb - Process management frame TX status callback | |
2332 | * @hapd: hostapd BSS data structure (the BSS from which the management frame | |
2333 | * was sent from) | |
2334 | * @buf: management frame data (starting from IEEE 802.11 header) | |
2335 | * @len: length of frame data in octets | |
2336 | * @stype: management frame subtype from frame control field | |
2337 | * @ok: Whether the frame was ACK'ed | |
2338 | */ | |
f8b1f695 | 2339 | void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
2340 | u16 stype, int ok) |
2341 | { | |
f8b1f695 JM |
2342 | const struct ieee80211_mgmt *mgmt; |
2343 | mgmt = (const struct ieee80211_mgmt *) buf; | |
6fc6879b | 2344 | |
93827f45 JM |
2345 | #ifdef CONFIG_TESTING_OPTIONS |
2346 | if (hapd->ext_mgmt_frame_handling) { | |
2347 | wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-TX-STATUS stype=%u ok=%d", | |
2348 | stype, ok); | |
2349 | return; | |
2350 | } | |
2351 | #endif /* CONFIG_TESTING_OPTIONS */ | |
2352 | ||
6fc6879b JM |
2353 | switch (stype) { |
2354 | case WLAN_FC_STYPE_AUTH: | |
2355 | wpa_printf(MSG_DEBUG, "mgmt::auth cb"); | |
2356 | handle_auth_cb(hapd, mgmt, len, ok); | |
2357 | break; | |
2358 | case WLAN_FC_STYPE_ASSOC_RESP: | |
2359 | wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); | |
2360 | handle_assoc_cb(hapd, mgmt, len, 0, ok); | |
2361 | break; | |
2362 | case WLAN_FC_STYPE_REASSOC_RESP: | |
2363 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); | |
2364 | handle_assoc_cb(hapd, mgmt, len, 1, ok); | |
2365 | break; | |
2366 | case WLAN_FC_STYPE_PROBE_RESP: | |
2d8bf732 | 2367 | wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb"); |
6fc6879b JM |
2368 | break; |
2369 | case WLAN_FC_STYPE_DEAUTH: | |
4dc03726 JM |
2370 | wpa_printf(MSG_DEBUG, "mgmt::deauth cb"); |
2371 | handle_deauth_cb(hapd, mgmt, len, ok); | |
2372 | break; | |
2373 | case WLAN_FC_STYPE_DISASSOC: | |
2374 | wpa_printf(MSG_DEBUG, "mgmt::disassoc cb"); | |
2375 | handle_disassoc_cb(hapd, mgmt, len, ok); | |
6fc6879b | 2376 | break; |
5d22a1d5 JM |
2377 | case WLAN_FC_STYPE_ACTION: |
2378 | wpa_printf(MSG_DEBUG, "mgmt::action cb"); | |
2379 | break; | |
6fc6879b | 2380 | default: |
61323e70 | 2381 | wpa_printf(MSG_INFO, "unknown mgmt cb frame subtype %d", stype); |
6fc6879b JM |
2382 | break; |
2383 | } | |
2384 | } | |
2385 | ||
2386 | ||
6fc6879b JM |
2387 | int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) |
2388 | { | |
2389 | /* TODO */ | |
2390 | return 0; | |
2391 | } | |
2392 | ||
2393 | ||
2394 | int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, | |
2395 | char *buf, size_t buflen) | |
2396 | { | |
2397 | /* TODO */ | |
2398 | return 0; | |
2399 | } | |
2400 | ||
f8b1f695 JM |
2401 | |
2402 | void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, | |
2403 | const u8 *buf, size_t len, int ack) | |
2404 | { | |
2405 | struct sta_info *sta; | |
2406 | struct hostapd_iface *iface = hapd->iface; | |
2407 | ||
2408 | sta = ap_get_sta(hapd, addr); | |
2409 | if (sta == NULL && iface->num_bss > 1) { | |
2410 | size_t j; | |
2411 | for (j = 0; j < iface->num_bss; j++) { | |
2412 | hapd = iface->bss[j]; | |
2413 | sta = ap_get_sta(hapd, addr); | |
2414 | if (sta) | |
2415 | break; | |
2416 | } | |
2417 | } | |
0c01d65d | 2418 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) |
f8b1f695 JM |
2419 | return; |
2420 | if (sta->flags & WLAN_STA_PENDING_POLL) { | |
2421 | wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " | |
2422 | "activity poll", MAC2STR(sta->addr), | |
2423 | ack ? "ACKed" : "did not ACK"); | |
2424 | if (ack) | |
2425 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
2426 | } | |
2427 | ||
2428 | ieee802_1x_tx_status(hapd, sta, buf, len, ack); | |
2429 | } | |
2430 | ||
2431 | ||
dd840f79 JB |
2432 | void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst, |
2433 | const u8 *data, size_t len, int ack) | |
2434 | { | |
2435 | struct sta_info *sta; | |
2436 | struct hostapd_iface *iface = hapd->iface; | |
2437 | ||
2438 | sta = ap_get_sta(hapd, dst); | |
2439 | if (sta == NULL && iface->num_bss > 1) { | |
2440 | size_t j; | |
2441 | for (j = 0; j < iface->num_bss; j++) { | |
2442 | hapd = iface->bss[j]; | |
2443 | sta = ap_get_sta(hapd, dst); | |
2444 | if (sta) | |
2445 | break; | |
2446 | } | |
2447 | } | |
d9a38716 JM |
2448 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { |
2449 | wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA " | |
2450 | MACSTR " that is not currently associated", | |
2451 | MAC2STR(dst)); | |
dd840f79 | 2452 | return; |
d9a38716 | 2453 | } |
dd840f79 JB |
2454 | |
2455 | ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack); | |
2456 | } | |
2457 | ||
2458 | ||
bcf24348 JB |
2459 | void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr) |
2460 | { | |
2461 | struct sta_info *sta; | |
2462 | struct hostapd_iface *iface = hapd->iface; | |
2463 | ||
2464 | sta = ap_get_sta(hapd, addr); | |
2465 | if (sta == NULL && iface->num_bss > 1) { | |
2466 | size_t j; | |
2467 | for (j = 0; j < iface->num_bss; j++) { | |
2468 | hapd = iface->bss[j]; | |
2469 | sta = ap_get_sta(hapd, addr); | |
2470 | if (sta) | |
2471 | break; | |
2472 | } | |
2473 | } | |
2474 | if (sta == NULL) | |
2475 | return; | |
2476 | if (!(sta->flags & WLAN_STA_PENDING_POLL)) | |
2477 | return; | |
2478 | ||
2479 | wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending " | |
2480 | "activity poll", MAC2STR(sta->addr)); | |
2481 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
2482 | } | |
2483 | ||
2484 | ||
fbbfcbac FF |
2485 | void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, |
2486 | int wds) | |
f8b1f695 JM |
2487 | { |
2488 | struct sta_info *sta; | |
2489 | ||
2490 | sta = ap_get_sta(hapd, src); | |
fbbfcbac | 2491 | if (sta && (sta->flags & WLAN_STA_ASSOC)) { |
99743811 FF |
2492 | if (!hapd->conf->wds_sta) |
2493 | return; | |
2494 | ||
fbbfcbac | 2495 | if (wds && !(sta->flags & WLAN_STA_WDS)) { |
69dd2967 SM |
2496 | int ret; |
2497 | char ifname_wds[IFNAMSIZ + 1]; | |
2498 | ||
fbbfcbac FF |
2499 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " |
2500 | "STA " MACSTR " (aid %u)", | |
2501 | MAC2STR(sta->addr), sta->aid); | |
2502 | sta->flags |= WLAN_STA_WDS; | |
69dd2967 SM |
2503 | ret = hostapd_set_wds_sta(hapd, ifname_wds, |
2504 | sta->addr, sta->aid, 1); | |
2505 | if (!ret) | |
2506 | hostapd_set_wds_encryption(hapd, sta, | |
2507 | ifname_wds); | |
fbbfcbac | 2508 | } |
f8b1f695 | 2509 | return; |
fbbfcbac | 2510 | } |
f8b1f695 JM |
2511 | |
2512 | wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " | |
2513 | MACSTR, MAC2STR(src)); | |
1df492df JM |
2514 | if (src[0] & 0x01) { |
2515 | /* Broadcast bit set in SA?! Ignore the frame silently. */ | |
2516 | return; | |
2517 | } | |
2518 | ||
b8281964 JM |
2519 | if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) { |
2520 | wpa_printf(MSG_DEBUG, "Association Response to the STA has " | |
2521 | "already been sent, but no TX status yet known - " | |
2522 | "ignore Class 3 frame issue with " MACSTR, | |
2523 | MAC2STR(src)); | |
2524 | return; | |
2525 | } | |
2526 | ||
f8b1f695 | 2527 | if (sta && (sta->flags & WLAN_STA_AUTH)) |
51e2a27a | 2528 | hostapd_drv_sta_disassoc( |
f8b1f695 JM |
2529 | hapd, src, |
2530 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
2531 | else | |
51e2a27a | 2532 | hostapd_drv_sta_deauth( |
f8b1f695 JM |
2533 | hapd, src, |
2534 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
2535 | } | |
2536 | ||
2537 | ||
6fc6879b | 2538 | #endif /* CONFIG_NATIVE_WINDOWS */ |