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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" |
037378ff | 26 | #include "fst/fst.h" |
6fc6879b | 27 | #include "hostapd.h" |
6fc6879b | 28 | #include "beacon.h" |
6fc6879b JM |
29 | #include "ieee802_11_auth.h" |
30 | #include "sta_info.h" | |
6fc6879b | 31 | #include "ieee802_1x.h" |
6226e38d | 32 | #include "wpa_auth.h" |
f2991170 | 33 | #include "pmksa_cache_auth.h" |
1057d78e | 34 | #include "wmm.h" |
6fc6879b JM |
35 | #include "ap_list.h" |
36 | #include "accounting.h" | |
6226e38d JM |
37 | #include "ap_config.h" |
38 | #include "ap_mlme.h" | |
dce044cc | 39 | #include "p2p_hostapd.h" |
cee7d66b | 40 | #include "ap_drv_ops.h" |
c79938a5 | 41 | #include "wnm_ap.h" |
0e2412d0 | 42 | #include "hw_features.h" |
6226e38d | 43 | #include "ieee802_11.h" |
3d7ad2f6 | 44 | #include "dfs.h" |
6332aaf3 | 45 | #include "mbo_ap.h" |
2572df34 | 46 | #include "rrm.h" |
6fc6879b JM |
47 | |
48 | ||
49 | u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
50 | { | |
51 | u8 *pos = eid; | |
52 | int i, num, count; | |
53 | ||
54 | if (hapd->iface->current_rates == NULL) | |
55 | return eid; | |
56 | ||
57 | *pos++ = WLAN_EID_SUPP_RATES; | |
58 | num = hapd->iface->num_rates; | |
29448243 JM |
59 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
60 | num++; | |
202d97d4 JB |
61 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
62 | num++; | |
6fc6879b JM |
63 | if (num > 8) { |
64 | /* rest of the rates are encoded in Extended supported | |
65 | * rates element */ | |
66 | num = 8; | |
67 | } | |
68 | ||
69 | *pos++ = num; | |
6fc6879b JM |
70 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num; |
71 | i++) { | |
72 | count++; | |
73 | *pos = hapd->iface->current_rates[i].rate / 5; | |
74 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
75 | *pos |= 0x80; | |
76 | pos++; | |
77 | } | |
78 | ||
202d97d4 JB |
79 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) { |
80 | count++; | |
29448243 | 81 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; |
202d97d4 JB |
82 | } |
83 | ||
84 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) { | |
85 | count++; | |
86 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
87 | } | |
29448243 | 88 | |
6fc6879b JM |
89 | return pos; |
90 | } | |
91 | ||
92 | ||
93 | u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
94 | { | |
95 | u8 *pos = eid; | |
96 | int i, num, count; | |
97 | ||
98 | if (hapd->iface->current_rates == NULL) | |
99 | return eid; | |
100 | ||
101 | num = hapd->iface->num_rates; | |
29448243 JM |
102 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
103 | num++; | |
202d97d4 JB |
104 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
105 | num++; | |
6fc6879b JM |
106 | if (num <= 8) |
107 | return eid; | |
108 | num -= 8; | |
109 | ||
110 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
111 | *pos++ = num; | |
6fc6879b JM |
112 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; |
113 | i++) { | |
114 | count++; | |
115 | if (count <= 8) | |
116 | continue; /* already in SuppRates IE */ | |
117 | *pos = hapd->iface->current_rates[i].rate / 5; | |
118 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
119 | *pos |= 0x80; | |
120 | pos++; | |
121 | } | |
122 | ||
202d97d4 JB |
123 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) { |
124 | count++; | |
125 | if (count > 8) | |
126 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; | |
127 | } | |
128 | ||
129 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) { | |
130 | count++; | |
131 | if (count > 8) | |
132 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
133 | } | |
29448243 | 134 | |
6fc6879b JM |
135 | return pos; |
136 | } | |
137 | ||
138 | ||
f41ded6f | 139 | u16 hostapd_own_capab_info(struct hostapd_data *hapd) |
6fc6879b JM |
140 | { |
141 | int capab = WLAN_CAPABILITY_ESS; | |
142 | int privacy; | |
3d7ad2f6 | 143 | int dfs; |
01018212 | 144 | int i; |
3d7ad2f6 C |
145 | |
146 | /* Check if any of configured channels require DFS */ | |
147 | dfs = hostapd_is_dfs_required(hapd->iface); | |
148 | if (dfs < 0) { | |
149 | wpa_printf(MSG_WARNING, "Failed to check if DFS is required; ret=%d", | |
150 | dfs); | |
151 | dfs = 0; | |
152 | } | |
6fc6879b JM |
153 | |
154 | if (hapd->iface->num_sta_no_short_preamble == 0 && | |
155 | hapd->iconf->preamble == SHORT_PREAMBLE) | |
156 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
157 | ||
158 | privacy = hapd->conf->ssid.wep.keys_set; | |
159 | ||
160 | if (hapd->conf->ieee802_1x && | |
161 | (hapd->conf->default_wep_key_len || | |
162 | hapd->conf->individual_wep_key_len)) | |
163 | privacy = 1; | |
164 | ||
165 | if (hapd->conf->wpa) | |
166 | privacy = 1; | |
167 | ||
a14896e8 JM |
168 | #ifdef CONFIG_HS20 |
169 | if (hapd->conf->osen) | |
170 | privacy = 1; | |
171 | #endif /* CONFIG_HS20 */ | |
172 | ||
6fc6879b JM |
173 | if (privacy) |
174 | capab |= WLAN_CAPABILITY_PRIVACY; | |
175 | ||
176 | if (hapd->iface->current_mode && | |
177 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && | |
178 | hapd->iface->num_sta_no_short_slot_time == 0) | |
179 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
180 | ||
3d7ad2f6 C |
181 | /* |
182 | * Currently, Spectrum Management capability bit is set when directly | |
183 | * requested in configuration by spectrum_mgmt_required or when AP is | |
184 | * running on DFS channel. | |
185 | * TODO: Also consider driver support for TPC to set Spectrum Mgmt bit | |
186 | */ | |
187 | if (hapd->iface->current_mode && | |
188 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211A && | |
189 | (hapd->iconf->spectrum_mgmt_required || dfs)) | |
190 | capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; | |
191 | ||
01018212 DS |
192 | for (i = 0; i < RRM_CAPABILITIES_IE_LEN; i++) { |
193 | if (hapd->conf->radio_measurements[i]) { | |
194 | capab |= IEEE80211_CAP_RRM; | |
195 | break; | |
196 | } | |
197 | } | |
0629eeb4 | 198 | |
6fc6879b JM |
199 | return capab; |
200 | } | |
201 | ||
202 | ||
7cb53ded | 203 | #ifndef CONFIG_NO_RC4 |
6fc6879b | 204 | static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c JM |
205 | u16 auth_transaction, const u8 *challenge, |
206 | int iswep) | |
6fc6879b JM |
207 | { |
208 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
209 | HOSTAPD_LEVEL_DEBUG, | |
210 | "authentication (shared key, transaction %d)", | |
211 | auth_transaction); | |
212 | ||
213 | if (auth_transaction == 1) { | |
214 | if (!sta->challenge) { | |
215 | /* Generate a pseudo-random challenge */ | |
216 | u8 key[8]; | |
f441e5af | 217 | |
6fc6879b JM |
218 | sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); |
219 | if (sta->challenge == NULL) | |
220 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
221 | ||
f441e5af NL |
222 | if (os_get_random(key, sizeof(key)) < 0) { |
223 | os_free(sta->challenge); | |
224 | sta->challenge = NULL; | |
225 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
226 | } | |
227 | ||
8ef16831 JM |
228 | rc4_skip(key, sizeof(key), 0, |
229 | sta->challenge, WLAN_AUTH_CHALLENGE_LEN); | |
6fc6879b JM |
230 | } |
231 | return 0; | |
232 | } | |
233 | ||
234 | if (auth_transaction != 3) | |
235 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
236 | ||
237 | /* Transaction 3 */ | |
238 | if (!iswep || !sta->challenge || !challenge || | |
34ef46ce JM |
239 | os_memcmp_const(sta->challenge, challenge, |
240 | WLAN_AUTH_CHALLENGE_LEN)) { | |
6fc6879b JM |
241 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
242 | HOSTAPD_LEVEL_INFO, | |
243 | "shared key authentication - invalid " | |
244 | "challenge-response"); | |
245 | return WLAN_STATUS_CHALLENGE_FAIL; | |
246 | } | |
247 | ||
248 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
249 | HOSTAPD_LEVEL_DEBUG, | |
250 | "authentication OK (shared key)"); | |
6fc6879b JM |
251 | sta->flags |= WLAN_STA_AUTH; |
252 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
6fc6879b JM |
253 | os_free(sta->challenge); |
254 | sta->challenge = NULL; | |
255 | ||
256 | return 0; | |
257 | } | |
7cb53ded | 258 | #endif /* CONFIG_NO_RC4 */ |
6fc6879b JM |
259 | |
260 | ||
bb598c3b AB |
261 | static int 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) | |
6fc6879b JM |
265 | { |
266 | struct ieee80211_mgmt *reply; | |
267 | u8 *buf; | |
268 | size_t rlen; | |
bb598c3b | 269 | int reply_res = WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
270 | |
271 | rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; | |
272 | buf = os_zalloc(rlen); | |
273 | if (buf == NULL) | |
bb598c3b | 274 | return -1; |
6fc6879b JM |
275 | |
276 | reply = (struct ieee80211_mgmt *) buf; | |
277 | reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
278 | WLAN_FC_STYPE_AUTH); | |
6fc6879b JM |
279 | os_memcpy(reply->da, dst, ETH_ALEN); |
280 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
281 | os_memcpy(reply->bssid, bssid, ETH_ALEN); | |
282 | ||
283 | reply->u.auth.auth_alg = host_to_le16(auth_alg); | |
284 | reply->u.auth.auth_transaction = host_to_le16(auth_transaction); | |
285 | reply->u.auth.status_code = host_to_le16(resp); | |
286 | ||
287 | if (ies && ies_len) | |
288 | os_memcpy(reply->u.auth.variable, ies, ies_len); | |
289 | ||
290 | wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR | |
291 | " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)", | |
292 | MAC2STR(dst), auth_alg, auth_transaction, | |
293 | resp, (unsigned long) ies_len); | |
8cfa3527 | 294 | if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0) |
bb598c3b AB |
295 | wpa_printf(MSG_INFO, "send_auth_reply: send failed"); |
296 | else | |
297 | reply_res = WLAN_STATUS_SUCCESS; | |
6fc6879b JM |
298 | |
299 | os_free(buf); | |
bb598c3b AB |
300 | |
301 | return reply_res; | |
6fc6879b JM |
302 | } |
303 | ||
304 | ||
305 | #ifdef CONFIG_IEEE80211R | |
306 | static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, | |
307 | u16 auth_transaction, u16 status, | |
308 | const u8 *ies, size_t ies_len) | |
309 | { | |
310 | struct hostapd_data *hapd = ctx; | |
311 | struct sta_info *sta; | |
bb598c3b | 312 | int reply_res; |
6fc6879b | 313 | |
bb598c3b AB |
314 | reply_res = send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, |
315 | auth_transaction, status, ies, ies_len); | |
6fc6879b JM |
316 | |
317 | sta = ap_get_sta(hapd, dst); | |
318 | if (sta == NULL) | |
319 | return; | |
320 | ||
bb598c3b AB |
321 | if (sta->added_unassoc && (reply_res != WLAN_STATUS_SUCCESS || |
322 | status != WLAN_STATUS_SUCCESS)) { | |
323 | hostapd_drv_sta_remove(hapd, sta->addr); | |
324 | sta->added_unassoc = 0; | |
325 | return; | |
326 | } | |
327 | ||
328 | if (status != WLAN_STATUS_SUCCESS) | |
329 | return; | |
330 | ||
6fc6879b JM |
331 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, |
332 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
333 | sta->flags |= WLAN_STA_AUTH; | |
334 | mlme_authenticate_indication(hapd, sta); | |
335 | } | |
336 | #endif /* CONFIG_IEEE80211R */ | |
337 | ||
338 | ||
c10347f2 | 339 | #ifdef CONFIG_SAE |
21af6d15 | 340 | |
f3b8ad4d BC |
341 | #define dot11RSNASAESync 5 /* attempts */ |
342 | ||
343 | ||
e96da42b | 344 | static struct wpabuf * auth_build_sae_commit(struct hostapd_data *hapd, |
872b7545 | 345 | struct sta_info *sta, int update) |
21af6d15 JM |
346 | { |
347 | struct wpabuf *buf; | |
348 | ||
146f6c9a JM |
349 | if (hapd->conf->ssid.wpa_passphrase == NULL) { |
350 | wpa_printf(MSG_DEBUG, "SAE: No password available"); | |
351 | return NULL; | |
352 | } | |
353 | ||
872b7545 MH |
354 | if (update && |
355 | sae_prepare_commit(hapd->own_addr, sta->addr, | |
8e31e955 JM |
356 | (u8 *) hapd->conf->ssid.wpa_passphrase, |
357 | os_strlen(hapd->conf->ssid.wpa_passphrase), | |
358 | sta->sae) < 0) { | |
359 | wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE"); | |
21af6d15 | 360 | return NULL; |
8e31e955 | 361 | } |
21af6d15 | 362 | |
8e31e955 JM |
363 | buf = wpabuf_alloc(SAE_COMMIT_MAX_LEN); |
364 | if (buf == NULL) | |
365 | return NULL; | |
872b7545 MH |
366 | sae_write_commit(sta->sae, buf, sta->sae->tmp ? |
367 | sta->sae->tmp->anti_clogging_token : NULL); | |
21af6d15 JM |
368 | |
369 | return buf; | |
370 | } | |
371 | ||
372 | ||
373 | static struct wpabuf * auth_build_sae_confirm(struct hostapd_data *hapd, | |
374 | struct sta_info *sta) | |
375 | { | |
376 | struct wpabuf *buf; | |
377 | ||
fb8fcc29 | 378 | buf = wpabuf_alloc(SAE_CONFIRM_MAX_LEN); |
21af6d15 JM |
379 | if (buf == NULL) |
380 | return NULL; | |
381 | ||
fb8fcc29 | 382 | sae_write_confirm(sta->sae, buf); |
21af6d15 JM |
383 | |
384 | return buf; | |
385 | } | |
386 | ||
387 | ||
e96da42b BC |
388 | static int auth_sae_send_commit(struct hostapd_data *hapd, |
389 | struct sta_info *sta, | |
872b7545 | 390 | const u8 *bssid, int update) |
e96da42b BC |
391 | { |
392 | struct wpabuf *data; | |
bb598c3b | 393 | int reply_res; |
e96da42b | 394 | |
872b7545 | 395 | data = auth_build_sae_commit(hapd, sta, update); |
e96da42b BC |
396 | if (data == NULL) |
397 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
398 | ||
bb598c3b AB |
399 | reply_res = send_auth_reply(hapd, sta->addr, bssid, WLAN_AUTH_SAE, 1, |
400 | WLAN_STATUS_SUCCESS, wpabuf_head(data), | |
401 | wpabuf_len(data)); | |
e96da42b BC |
402 | |
403 | wpabuf_free(data); | |
404 | ||
bb598c3b | 405 | return reply_res; |
e96da42b BC |
406 | } |
407 | ||
408 | ||
409 | static int auth_sae_send_confirm(struct hostapd_data *hapd, | |
410 | struct sta_info *sta, | |
411 | const u8 *bssid) | |
412 | { | |
413 | struct wpabuf *data; | |
bb598c3b | 414 | int reply_res; |
e96da42b BC |
415 | |
416 | data = auth_build_sae_confirm(hapd, sta); | |
417 | if (data == NULL) | |
418 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
419 | ||
bb598c3b AB |
420 | reply_res = send_auth_reply(hapd, sta->addr, bssid, WLAN_AUTH_SAE, 2, |
421 | WLAN_STATUS_SUCCESS, wpabuf_head(data), | |
422 | wpabuf_len(data)); | |
e96da42b BC |
423 | |
424 | wpabuf_free(data); | |
425 | ||
bb598c3b | 426 | return reply_res; |
e96da42b BC |
427 | } |
428 | ||
429 | ||
d136c376 JM |
430 | static int use_sae_anti_clogging(struct hostapd_data *hapd) |
431 | { | |
432 | struct sta_info *sta; | |
433 | unsigned int open = 0; | |
434 | ||
435 | if (hapd->conf->sae_anti_clogging_threshold == 0) | |
436 | return 1; | |
437 | ||
438 | for (sta = hapd->sta_list; sta; sta = sta->next) { | |
439 | if (!sta->sae) | |
440 | continue; | |
441 | if (sta->sae->state != SAE_COMMITTED && | |
442 | sta->sae->state != SAE_CONFIRMED) | |
443 | continue; | |
444 | open++; | |
445 | if (open >= hapd->conf->sae_anti_clogging_threshold) | |
446 | return 1; | |
447 | } | |
448 | ||
449 | return 0; | |
450 | } | |
451 | ||
452 | ||
453 | static int check_sae_token(struct hostapd_data *hapd, const u8 *addr, | |
454 | const u8 *token, size_t token_len) | |
455 | { | |
456 | u8 mac[SHA256_MAC_LEN]; | |
457 | ||
458 | if (token_len != SHA256_MAC_LEN) | |
459 | return -1; | |
460 | if (hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
461 | addr, ETH_ALEN, mac) < 0 || | |
0233dcac | 462 | os_memcmp_const(token, mac, SHA256_MAC_LEN) != 0) |
d136c376 JM |
463 | return -1; |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
468 | ||
469 | static struct wpabuf * auth_build_token_req(struct hostapd_data *hapd, | |
a959a3b6 | 470 | int group, const u8 *addr) |
d136c376 JM |
471 | { |
472 | struct wpabuf *buf; | |
473 | u8 *token; | |
fe52c210 | 474 | struct os_reltime now; |
d136c376 | 475 | |
fe52c210 JB |
476 | os_get_reltime(&now); |
477 | if (!os_reltime_initialized(&hapd->last_sae_token_key_update) || | |
478 | os_reltime_expired(&now, &hapd->last_sae_token_key_update, 60)) { | |
a50414c3 JM |
479 | if (random_get_bytes(hapd->sae_token_key, |
480 | sizeof(hapd->sae_token_key)) < 0) | |
481 | return NULL; | |
d136c376 JM |
482 | wpa_hexdump(MSG_DEBUG, "SAE: Updated token key", |
483 | hapd->sae_token_key, sizeof(hapd->sae_token_key)); | |
fe52c210 | 484 | hapd->last_sae_token_key_update = now; |
d136c376 JM |
485 | } |
486 | ||
a959a3b6 | 487 | buf = wpabuf_alloc(sizeof(le16) + SHA256_MAC_LEN); |
d136c376 JM |
488 | if (buf == NULL) |
489 | return NULL; | |
490 | ||
a959a3b6 MH |
491 | wpabuf_put_le16(buf, group); /* Finite Cyclic Group */ |
492 | ||
d136c376 JM |
493 | token = wpabuf_put(buf, SHA256_MAC_LEN); |
494 | hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
495 | addr, ETH_ALEN, token); | |
496 | ||
497 | return buf; | |
498 | } | |
499 | ||
500 | ||
f3b8ad4d BC |
501 | static int sae_check_big_sync(struct sta_info *sta) |
502 | { | |
503 | if (sta->sae->sync > dot11RSNASAESync) { | |
504 | sta->sae->state = SAE_NOTHING; | |
505 | sta->sae->sync = 0; | |
506 | return -1; | |
507 | } | |
508 | return 0; | |
509 | } | |
510 | ||
511 | ||
512 | static void auth_sae_retransmit_timer(void *eloop_ctx, void *eloop_data) | |
513 | { | |
514 | struct hostapd_data *hapd = eloop_ctx; | |
515 | struct sta_info *sta = eloop_data; | |
516 | int ret; | |
517 | ||
518 | if (sae_check_big_sync(sta)) | |
519 | return; | |
520 | sta->sae->sync++; | |
dad01292 JM |
521 | wpa_printf(MSG_DEBUG, "SAE: Auth SAE retransmit timer for " MACSTR |
522 | " (sync=%d state=%d)", | |
523 | MAC2STR(sta->addr), sta->sae->sync, sta->sae->state); | |
f3b8ad4d BC |
524 | |
525 | switch (sta->sae->state) { | |
526 | case SAE_COMMITTED: | |
527 | ret = auth_sae_send_commit(hapd, sta, hapd->own_addr, 0); | |
ecd40fef MH |
528 | eloop_register_timeout(0, |
529 | hapd->dot11RSNASAERetransPeriod * 1000, | |
f3b8ad4d BC |
530 | auth_sae_retransmit_timer, hapd, sta); |
531 | break; | |
532 | case SAE_CONFIRMED: | |
533 | ret = auth_sae_send_confirm(hapd, sta, hapd->own_addr); | |
ecd40fef MH |
534 | eloop_register_timeout(0, |
535 | hapd->dot11RSNASAERetransPeriod * 1000, | |
f3b8ad4d BC |
536 | auth_sae_retransmit_timer, hapd, sta); |
537 | break; | |
538 | default: | |
539 | ret = -1; | |
540 | break; | |
541 | } | |
542 | ||
543 | if (ret != WLAN_STATUS_SUCCESS) | |
544 | wpa_printf(MSG_INFO, "SAE: Failed to retransmit: ret=%d", ret); | |
545 | } | |
546 | ||
547 | ||
548 | void sae_clear_retransmit_timer(struct hostapd_data *hapd, struct sta_info *sta) | |
549 | { | |
550 | eloop_cancel_timeout(auth_sae_retransmit_timer, hapd, sta); | |
551 | } | |
552 | ||
553 | ||
554 | static void sae_set_retransmit_timer(struct hostapd_data *hapd, | |
555 | struct sta_info *sta) | |
556 | { | |
557 | if (!(hapd->conf->mesh & MESH_ENABLED)) | |
558 | return; | |
559 | ||
560 | eloop_cancel_timeout(auth_sae_retransmit_timer, hapd, sta); | |
ecd40fef | 561 | eloop_register_timeout(0, hapd->dot11RSNASAERetransPeriod * 1000, |
f3b8ad4d BC |
562 | auth_sae_retransmit_timer, hapd, sta); |
563 | } | |
564 | ||
565 | ||
9f2cf23e MH |
566 | void sae_accept_sta(struct hostapd_data *hapd, struct sta_info *sta) |
567 | { | |
568 | sta->flags |= WLAN_STA_AUTH; | |
569 | sta->auth_alg = WLAN_AUTH_SAE; | |
570 | mlme_authenticate_indication(hapd, sta); | |
571 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
572 | sta->sae->state = SAE_ACCEPTED; | |
573 | wpa_auth_pmksa_add_sae(hapd->wpa_auth, sta->addr, | |
574 | sta->sae->pmk, sta->sae->pmkid); | |
575 | } | |
576 | ||
577 | ||
e96da42b BC |
578 | static int sae_sm_step(struct hostapd_data *hapd, struct sta_info *sta, |
579 | const u8 *bssid, u8 auth_transaction) | |
580 | { | |
581 | int ret; | |
582 | ||
583 | if (auth_transaction != 1 && auth_transaction != 2) | |
584 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
585 | ||
586 | switch (sta->sae->state) { | |
587 | case SAE_NOTHING: | |
588 | if (auth_transaction == 1) { | |
872b7545 | 589 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); |
e96da42b BC |
590 | if (ret) |
591 | return ret; | |
592 | sta->sae->state = SAE_COMMITTED; | |
593 | ||
594 | if (sae_process_commit(sta->sae) < 0) | |
595 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
596 | ||
597 | /* | |
598 | * In mesh case, both Commit and Confirm can be sent | |
599 | * immediately. In infrastructure BSS, only a single | |
600 | * Authentication frame (Commit) is expected from the AP | |
601 | * here and the second one (Confirm) will be sent once | |
602 | * the STA has sent its second Authentication frame | |
603 | * (Confirm). | |
604 | */ | |
605 | if (hapd->conf->mesh & MESH_ENABLED) { | |
606 | /* | |
607 | * Send both Commit and Confirm immediately | |
608 | * based on SAE finite state machine | |
609 | * Nothing -> Confirm transition. | |
610 | */ | |
611 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
612 | if (ret) | |
613 | return ret; | |
614 | sta->sae->state = SAE_CONFIRMED; | |
615 | } else { | |
616 | /* | |
617 | * For infrastructure BSS, send only the Commit | |
618 | * message now to get alternating sequence of | |
619 | * Authentication frames between the AP and STA. | |
620 | * Confirm will be sent in | |
621 | * Commited -> Confirmed/Accepted transition | |
622 | * when receiving Confirm from STA. | |
623 | */ | |
624 | } | |
f3b8ad4d BC |
625 | sta->sae->sync = 0; |
626 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
627 | } else { |
628 | hostapd_logger(hapd, sta->addr, | |
629 | HOSTAPD_MODULE_IEEE80211, | |
630 | HOSTAPD_LEVEL_DEBUG, | |
631 | "SAE confirm before commit"); | |
632 | } | |
633 | break; | |
634 | case SAE_COMMITTED: | |
f3b8ad4d | 635 | sae_clear_retransmit_timer(hapd, sta); |
e96da42b BC |
636 | if (auth_transaction == 1) { |
637 | if (sae_process_commit(sta->sae) < 0) | |
638 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
639 | ||
640 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
641 | if (ret) | |
642 | return ret; | |
643 | sta->sae->state = SAE_CONFIRMED; | |
f3b8ad4d BC |
644 | sta->sae->sync = 0; |
645 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
646 | } else if (hapd->conf->mesh & MESH_ENABLED) { |
647 | /* | |
648 | * In mesh case, follow SAE finite state machine and | |
f3b8ad4d | 649 | * send Commit now, if sync count allows. |
e96da42b | 650 | */ |
f3b8ad4d BC |
651 | if (sae_check_big_sync(sta)) |
652 | return WLAN_STATUS_SUCCESS; | |
653 | sta->sae->sync++; | |
654 | ||
fabc6dd8 | 655 | ret = auth_sae_send_commit(hapd, sta, bssid, 0); |
e96da42b BC |
656 | if (ret) |
657 | return ret; | |
f3b8ad4d BC |
658 | |
659 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
660 | } else { |
661 | /* | |
662 | * For instructure BSS, send the postponed Confirm from | |
663 | * Nothing -> Confirmed transition that was reduced to | |
664 | * Nothing -> Committed above. | |
665 | */ | |
666 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
667 | if (ret) | |
668 | return ret; | |
669 | ||
670 | sta->sae->state = SAE_CONFIRMED; | |
671 | ||
672 | /* | |
673 | * Since this was triggered on Confirm RX, run another | |
674 | * step to get to Accepted without waiting for | |
675 | * additional events. | |
676 | */ | |
677 | return sae_sm_step(hapd, sta, bssid, auth_transaction); | |
678 | } | |
679 | break; | |
680 | case SAE_CONFIRMED: | |
f3b8ad4d | 681 | sae_clear_retransmit_timer(hapd, sta); |
e96da42b | 682 | if (auth_transaction == 1) { |
f3b8ad4d BC |
683 | if (sae_check_big_sync(sta)) |
684 | return WLAN_STATUS_SUCCESS; | |
685 | sta->sae->sync++; | |
686 | ||
872b7545 | 687 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); |
e96da42b BC |
688 | if (ret) |
689 | return ret; | |
690 | ||
691 | if (sae_process_commit(sta->sae) < 0) | |
692 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
693 | ||
694 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
695 | if (ret) | |
696 | return ret; | |
f3b8ad4d BC |
697 | |
698 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b | 699 | } else { |
9f2cf23e | 700 | sae_accept_sta(hapd, sta); |
e96da42b BC |
701 | } |
702 | break; | |
703 | case SAE_ACCEPTED: | |
704 | if (auth_transaction == 1) { | |
705 | wpa_printf(MSG_DEBUG, "SAE: remove the STA (" MACSTR | |
706 | ") doing reauthentication", | |
707 | MAC2STR(sta->addr)); | |
708 | ap_free_sta(hapd, sta); | |
9f2cf23e | 709 | wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr); |
e96da42b | 710 | } else { |
f3b8ad4d BC |
711 | if (sae_check_big_sync(sta)) |
712 | return WLAN_STATUS_SUCCESS; | |
713 | sta->sae->sync++; | |
714 | ||
e96da42b BC |
715 | ret = auth_sae_send_confirm(hapd, sta, bssid); |
716 | sae_clear_temp_data(sta->sae); | |
717 | if (ret) | |
718 | return ret; | |
719 | } | |
720 | break; | |
721 | default: | |
722 | wpa_printf(MSG_ERROR, "SAE: invalid state %d", | |
723 | sta->sae->state); | |
724 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
725 | } | |
726 | return WLAN_STATUS_SUCCESS; | |
727 | } | |
728 | ||
729 | ||
dad01292 JM |
730 | static void sae_pick_next_group(struct hostapd_data *hapd, struct sta_info *sta) |
731 | { | |
732 | struct sae_data *sae = sta->sae; | |
733 | int i, *groups = hapd->conf->sae_groups; | |
734 | ||
735 | if (sae->state != SAE_COMMITTED) | |
736 | return; | |
737 | ||
738 | wpa_printf(MSG_DEBUG, "SAE: Previously selected group: %d", sae->group); | |
739 | ||
740 | for (i = 0; groups && groups[i] > 0; i++) { | |
741 | if (sae->group == groups[i]) | |
742 | break; | |
743 | } | |
744 | ||
745 | if (!groups || groups[i] <= 0) { | |
746 | wpa_printf(MSG_DEBUG, | |
747 | "SAE: Previously selected group not found from the current configuration"); | |
748 | return; | |
749 | } | |
750 | ||
751 | for (;;) { | |
752 | i++; | |
753 | if (groups[i] <= 0) { | |
754 | wpa_printf(MSG_DEBUG, | |
755 | "SAE: No alternative group enabled"); | |
756 | return; | |
757 | } | |
758 | ||
759 | if (sae_set_group(sae, groups[i]) < 0) | |
760 | continue; | |
761 | ||
762 | break; | |
763 | } | |
764 | wpa_printf(MSG_DEBUG, "SAE: Selected new group: %d", groups[i]); | |
765 | } | |
766 | ||
767 | ||
c10347f2 JM |
768 | static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta, |
769 | const struct ieee80211_mgmt *mgmt, size_t len, | |
afa2ffb4 | 770 | u16 auth_transaction, u16 status_code) |
c10347f2 | 771 | { |
bb598c3b | 772 | int resp = WLAN_STATUS_SUCCESS; |
750efe6e | 773 | struct wpabuf *data = NULL; |
c10347f2 | 774 | |
98efcc41 | 775 | if (!sta->sae) { |
bb598c3b AB |
776 | if (auth_transaction != 1 || |
777 | status_code != WLAN_STATUS_SUCCESS) { | |
778 | resp = -1; | |
779 | goto remove_sta; | |
780 | } | |
98efcc41 | 781 | sta->sae = os_zalloc(sizeof(*sta->sae)); |
bb598c3b AB |
782 | if (!sta->sae) { |
783 | resp = -1; | |
784 | goto remove_sta; | |
785 | } | |
dd43026a | 786 | sta->sae->state = SAE_NOTHING; |
f3b8ad4d | 787 | sta->sae->sync = 0; |
98efcc41 JM |
788 | } |
789 | ||
9f2cf23e MH |
790 | if (sta->mesh_sae_pmksa_caching) { |
791 | wpa_printf(MSG_DEBUG, | |
792 | "SAE: Cancel use of mesh PMKSA caching because peer starts SAE authentication"); | |
793 | wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr); | |
794 | sta->mesh_sae_pmksa_caching = 0; | |
795 | } | |
796 | ||
c10347f2 | 797 | if (auth_transaction == 1) { |
a959a3b6 | 798 | const u8 *token = NULL, *pos, *end; |
d136c376 | 799 | size_t token_len = 0; |
c10347f2 JM |
800 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
801 | HOSTAPD_LEVEL_DEBUG, | |
afa2ffb4 JM |
802 | "start SAE authentication (RX commit, status=%u)", |
803 | status_code); | |
872b7545 MH |
804 | |
805 | if ((hapd->conf->mesh & MESH_ENABLED) && | |
afa2ffb4 JM |
806 | status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ && |
807 | sta->sae->tmp) { | |
a959a3b6 MH |
808 | pos = mgmt->u.auth.variable; |
809 | end = ((const u8 *) mgmt) + len; | |
810 | if (pos + sizeof(le16) > end) { | |
811 | wpa_printf(MSG_ERROR, | |
812 | "SAE: Too short anti-clogging token request"); | |
813 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
814 | goto reply; | |
815 | } | |
816 | resp = sae_group_allowed(sta->sae, | |
817 | hapd->conf->sae_groups, | |
818 | WPA_GET_LE16(pos)); | |
819 | if (resp != WLAN_STATUS_SUCCESS) { | |
820 | wpa_printf(MSG_ERROR, | |
821 | "SAE: Invalid group in anti-clogging token request"); | |
822 | goto reply; | |
823 | } | |
824 | pos += sizeof(le16); | |
825 | ||
872b7545 MH |
826 | wpabuf_free(sta->sae->tmp->anti_clogging_token); |
827 | sta->sae->tmp->anti_clogging_token = | |
a959a3b6 | 828 | wpabuf_alloc_copy(pos, end - pos); |
872b7545 MH |
829 | if (sta->sae->tmp->anti_clogging_token == NULL) { |
830 | wpa_printf(MSG_ERROR, | |
831 | "SAE: Failed to alloc for anti-clogging token"); | |
bb598c3b AB |
832 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
833 | goto remove_sta; | |
872b7545 MH |
834 | } |
835 | ||
836 | /* | |
837 | * IEEE Std 802.11-2012, 11.3.8.6.4: If the Status code | |
838 | * is 76, a new Commit Message shall be constructed | |
839 | * with the Anti-Clogging Token from the received | |
840 | * Authentication frame, and the commit-scalar and | |
841 | * COMMIT-ELEMENT previously sent. | |
842 | */ | |
bb598c3b AB |
843 | resp = auth_sae_send_commit(hapd, sta, mgmt->bssid, 0); |
844 | if (resp != WLAN_STATUS_SUCCESS) { | |
872b7545 MH |
845 | wpa_printf(MSG_ERROR, |
846 | "SAE: Failed to send commit message"); | |
bb598c3b | 847 | goto remove_sta; |
872b7545 MH |
848 | } |
849 | sta->sae->state = SAE_COMMITTED; | |
f3b8ad4d BC |
850 | sta->sae->sync = 0; |
851 | sae_set_retransmit_timer(hapd, sta); | |
872b7545 MH |
852 | return; |
853 | } | |
854 | ||
dad01292 JM |
855 | if ((hapd->conf->mesh & MESH_ENABLED) && |
856 | status_code == | |
857 | WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED && | |
858 | sta->sae->tmp) { | |
859 | wpa_printf(MSG_DEBUG, | |
860 | "SAE: Peer did not accept our SAE group"); | |
861 | sae_pick_next_group(hapd, sta); | |
862 | goto remove_sta; | |
863 | } | |
864 | ||
afa2ffb4 | 865 | if (status_code != WLAN_STATUS_SUCCESS) |
bb598c3b | 866 | goto remove_sta; |
afa2ffb4 | 867 | |
146f6c9a JM |
868 | resp = sae_parse_commit(sta->sae, mgmt->u.auth.variable, |
869 | ((const u8 *) mgmt) + len - | |
d136c376 | 870 | mgmt->u.auth.variable, &token, |
625f202a | 871 | &token_len, hapd->conf->sae_groups); |
6a58444d JM |
872 | if (resp == SAE_SILENTLY_DISCARD) { |
873 | wpa_printf(MSG_DEBUG, | |
874 | "SAE: Drop commit message from " MACSTR " due to reflection attack", | |
875 | MAC2STR(sta->addr)); | |
bb598c3b | 876 | goto remove_sta; |
6a58444d | 877 | } |
d136c376 JM |
878 | if (token && check_sae_token(hapd, sta->addr, token, token_len) |
879 | < 0) { | |
880 | wpa_printf(MSG_DEBUG, "SAE: Drop commit message with " | |
881 | "incorrect token from " MACSTR, | |
882 | MAC2STR(sta->addr)); | |
bb598c3b AB |
883 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
884 | goto remove_sta; | |
d136c376 JM |
885 | } |
886 | ||
e96da42b BC |
887 | if (resp != WLAN_STATUS_SUCCESS) |
888 | goto reply; | |
889 | ||
890 | if (!token && use_sae_anti_clogging(hapd)) { | |
891 | wpa_printf(MSG_DEBUG, | |
892 | "SAE: Request anti-clogging token from " | |
893 | MACSTR, MAC2STR(sta->addr)); | |
a959a3b6 MH |
894 | data = auth_build_token_req(hapd, sta->sae->group, |
895 | sta->addr); | |
e96da42b | 896 | resp = WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ; |
872b7545 MH |
897 | if (hapd->conf->mesh & MESH_ENABLED) |
898 | sta->sae->state = SAE_NOTHING; | |
e96da42b | 899 | goto reply; |
750efe6e | 900 | } |
e96da42b BC |
901 | |
902 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction); | |
c10347f2 | 903 | } else if (auth_transaction == 2) { |
c10347f2 JM |
904 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
905 | HOSTAPD_LEVEL_DEBUG, | |
afa2ffb4 JM |
906 | "SAE authentication (RX confirm, status=%u)", |
907 | status_code); | |
908 | if (status_code != WLAN_STATUS_SUCCESS) | |
bb598c3b | 909 | goto remove_sta; |
e96da42b BC |
910 | if (sta->sae->state >= SAE_CONFIRMED || |
911 | !(hapd->conf->mesh & MESH_ENABLED)) { | |
912 | if (sae_check_confirm(sta->sae, mgmt->u.auth.variable, | |
913 | ((u8 *) mgmt) + len - | |
914 | mgmt->u.auth.variable) < 0) { | |
750efe6e | 915 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
e96da42b | 916 | goto reply; |
b4fd3613 | 917 | } |
21af6d15 | 918 | } |
e96da42b | 919 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction); |
c10347f2 JM |
920 | } else { |
921 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
922 | HOSTAPD_LEVEL_DEBUG, | |
afa2ffb4 JM |
923 | "unexpected SAE authentication transaction %u (status=%u)", |
924 | auth_transaction, status_code); | |
925 | if (status_code != WLAN_STATUS_SUCCESS) | |
bb598c3b | 926 | goto remove_sta; |
c10347f2 JM |
927 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
928 | } | |
929 | ||
e96da42b BC |
930 | reply: |
931 | if (resp != WLAN_STATUS_SUCCESS) { | |
932 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
933 | auth_transaction, resp, | |
934 | data ? wpabuf_head(data) : (u8 *) "", | |
935 | data ? wpabuf_len(data) : 0); | |
936 | } | |
bb598c3b AB |
937 | |
938 | remove_sta: | |
939 | if (sta->added_unassoc && (resp != WLAN_STATUS_SUCCESS || | |
940 | status_code != WLAN_STATUS_SUCCESS)) { | |
941 | hostapd_drv_sta_remove(hapd, sta->addr); | |
942 | sta->added_unassoc = 0; | |
943 | } | |
21af6d15 | 944 | wpabuf_free(data); |
c10347f2 | 945 | } |
a206e2a1 BC |
946 | |
947 | ||
948 | /** | |
949 | * auth_sae_init_committed - Send COMMIT and start SAE in committed state | |
950 | * @hapd: BSS data for the device initiating the authentication | |
951 | * @sta: the peer to which commit authentication frame is sent | |
952 | * | |
953 | * This function implements Init event handling (IEEE Std 802.11-2012, | |
954 | * 11.3.8.6.3) in which initial COMMIT message is sent. Prior to calling, the | |
955 | * sta->sae structure should be initialized appropriately via a call to | |
956 | * sae_prepare_commit(). | |
957 | */ | |
958 | int auth_sae_init_committed(struct hostapd_data *hapd, struct sta_info *sta) | |
959 | { | |
960 | int ret; | |
961 | ||
962 | if (!sta->sae || !sta->sae->tmp) | |
963 | return -1; | |
964 | ||
965 | if (sta->sae->state != SAE_NOTHING) | |
966 | return -1; | |
967 | ||
968 | ret = auth_sae_send_commit(hapd, sta, hapd->own_addr, 0); | |
969 | if (ret) | |
970 | return -1; | |
971 | ||
972 | sta->sae->state = SAE_COMMITTED; | |
f3b8ad4d BC |
973 | sta->sae->sync = 0; |
974 | sae_set_retransmit_timer(hapd, sta); | |
a206e2a1 BC |
975 | |
976 | return 0; | |
977 | } | |
978 | ||
c10347f2 JM |
979 | #endif /* CONFIG_SAE */ |
980 | ||
981 | ||
b57e086c JM |
982 | static void handle_auth(struct hostapd_data *hapd, |
983 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b JM |
984 | { |
985 | u16 auth_alg, auth_transaction, status_code; | |
986 | u16 resp = WLAN_STATUS_SUCCESS; | |
987 | struct sta_info *sta = NULL; | |
bb598c3b | 988 | int res, reply_res; |
6fc6879b | 989 | u16 fc; |
b57e086c | 990 | const u8 *challenge = NULL; |
6fc6879b | 991 | u32 session_timeout, acct_interim_interval; |
1889af2e | 992 | struct vlan_description vlan_id; |
2ad3e6c8 | 993 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
6fc6879b JM |
994 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; |
995 | size_t resp_ies_len = 0; | |
2092597f MB |
996 | char *identity = NULL; |
997 | char *radius_cui = NULL; | |
38cb0a2d | 998 | u16 seq_ctrl; |
6fc6879b | 999 | |
1889af2e MB |
1000 | os_memset(&vlan_id, 0, sizeof(vlan_id)); |
1001 | ||
6fc6879b | 1002 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { |
61323e70 JM |
1003 | wpa_printf(MSG_INFO, "handle_auth - too short payload (len=%lu)", |
1004 | (unsigned long) len); | |
6fc6879b JM |
1005 | return; |
1006 | } | |
1007 | ||
c2aff6b1 | 1008 | #ifdef CONFIG_TESTING_OPTIONS |
06df2aa6 | 1009 | if (hapd->iconf->ignore_auth_probability > 0.0 && |
c2aff6b1 JB |
1010 | drand48() < hapd->iconf->ignore_auth_probability) { |
1011 | wpa_printf(MSG_INFO, | |
1012 | "TESTING: ignoring auth frame from " MACSTR, | |
1013 | MAC2STR(mgmt->sa)); | |
1014 | return; | |
1015 | } | |
1016 | #endif /* CONFIG_TESTING_OPTIONS */ | |
1017 | ||
6fc6879b JM |
1018 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); |
1019 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
1020 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
1021 | fc = le_to_host16(mgmt->frame_control); | |
38cb0a2d | 1022 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); |
6fc6879b JM |
1023 | |
1024 | if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + | |
1025 | 2 + WLAN_AUTH_CHALLENGE_LEN && | |
1026 | mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && | |
1027 | mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) | |
1028 | challenge = &mgmt->u.auth.variable[2]; | |
1029 | ||
1030 | wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " | |
38cb0a2d IP |
1031 | "auth_transaction=%d status_code=%d wep=%d%s " |
1032 | "seq_ctrl=0x%x%s", | |
6fc6879b JM |
1033 | MAC2STR(mgmt->sa), auth_alg, auth_transaction, |
1034 | status_code, !!(fc & WLAN_FC_ISWEP), | |
38cb0a2d IP |
1035 | challenge ? " challenge" : "", |
1036 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
6fc6879b | 1037 | |
7cb53ded JM |
1038 | #ifdef CONFIG_NO_RC4 |
1039 | if (auth_alg == WLAN_AUTH_SHARED_KEY) { | |
1040 | wpa_printf(MSG_INFO, | |
1041 | "Unsupported authentication algorithm (%d)", | |
1042 | auth_alg); | |
1043 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
1044 | goto fail; | |
1045 | } | |
1046 | #endif /* CONFIG_NO_RC4 */ | |
1047 | ||
6fc6879b JM |
1048 | if (hapd->tkip_countermeasures) { |
1049 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
1050 | goto fail; | |
1051 | } | |
1052 | ||
1053 | if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && | |
1054 | auth_alg == WLAN_AUTH_OPEN) || | |
1055 | #ifdef CONFIG_IEEE80211R | |
0bf927a0 | 1056 | (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && |
6fc6879b JM |
1057 | auth_alg == WLAN_AUTH_FT) || |
1058 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
1059 | #ifdef CONFIG_SAE |
1060 | (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && | |
1061 | auth_alg == WLAN_AUTH_SAE) || | |
1062 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
1063 | ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && |
1064 | auth_alg == WLAN_AUTH_SHARED_KEY))) { | |
61323e70 JM |
1065 | wpa_printf(MSG_INFO, "Unsupported authentication algorithm (%d)", |
1066 | auth_alg); | |
6fc6879b JM |
1067 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; |
1068 | goto fail; | |
1069 | } | |
1070 | ||
c10347f2 | 1071 | if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE || |
6fc6879b | 1072 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { |
61323e70 JM |
1073 | wpa_printf(MSG_INFO, "Unknown authentication transaction number (%d)", |
1074 | auth_transaction); | |
6fc6879b JM |
1075 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
1076 | goto fail; | |
1077 | } | |
1078 | ||
1079 | if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { | |
61323e70 JM |
1080 | wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate", |
1081 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
1082 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1083 | goto fail; | |
1084 | } | |
1085 | ||
0e2412d0 JM |
1086 | if (hapd->conf->no_auth_if_seen_on) { |
1087 | struct hostapd_data *other; | |
1088 | ||
1089 | other = sta_track_seen_on(hapd->iface, mgmt->sa, | |
1090 | hapd->conf->no_auth_if_seen_on); | |
1091 | if (other) { | |
1092 | u8 *pos; | |
1093 | u32 info; | |
1094 | u8 op_class, channel, phytype; | |
1095 | ||
1096 | wpa_printf(MSG_DEBUG, "%s: Reject authentication from " | |
1097 | MACSTR " since STA has been seen on %s", | |
1098 | hapd->conf->iface, MAC2STR(mgmt->sa), | |
1099 | hapd->conf->no_auth_if_seen_on); | |
1100 | ||
1101 | resp = WLAN_STATUS_REJECTED_WITH_SUGGESTED_BSS_TRANSITION; | |
1102 | pos = &resp_ies[0]; | |
1103 | *pos++ = WLAN_EID_NEIGHBOR_REPORT; | |
1104 | *pos++ = 13; | |
1105 | os_memcpy(pos, other->own_addr, ETH_ALEN); | |
1106 | pos += ETH_ALEN; | |
1107 | info = 0; /* TODO: BSSID Information */ | |
1108 | WPA_PUT_LE32(pos, info); | |
1109 | pos += 4; | |
1110 | if (other->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD) | |
1111 | phytype = 8; /* dmg */ | |
1112 | else if (other->iconf->ieee80211ac) | |
1113 | phytype = 9; /* vht */ | |
1114 | else if (other->iconf->ieee80211n) | |
1115 | phytype = 7; /* ht */ | |
1116 | else if (other->iconf->hw_mode == | |
1117 | HOSTAPD_MODE_IEEE80211A) | |
1118 | phytype = 4; /* ofdm */ | |
1119 | else if (other->iconf->hw_mode == | |
1120 | HOSTAPD_MODE_IEEE80211G) | |
1121 | phytype = 6; /* erp */ | |
1122 | else | |
1123 | phytype = 5; /* hrdsss */ | |
1124 | if (ieee80211_freq_to_channel_ext( | |
1125 | hostapd_hw_get_freq(other, | |
1126 | other->iconf->channel), | |
1127 | other->iconf->secondary_channel, | |
1128 | other->iconf->ieee80211ac, | |
1129 | &op_class, &channel) == NUM_HOSTAPD_MODES) { | |
1130 | op_class = 0; | |
1131 | channel = other->iconf->channel; | |
1132 | } | |
1133 | *pos++ = op_class; | |
1134 | *pos++ = channel; | |
1135 | *pos++ = phytype; | |
1136 | resp_ies_len = pos - &resp_ies[0]; | |
1137 | goto fail; | |
1138 | } | |
1139 | } | |
1140 | ||
6fc6879b JM |
1141 | res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len, |
1142 | &session_timeout, | |
05ab9712 | 1143 | &acct_interim_interval, &vlan_id, |
2ad3e6c8 | 1144 | &psk, &identity, &radius_cui); |
05ab9712 | 1145 | |
6fc6879b | 1146 | if (res == HOSTAPD_ACL_REJECT) { |
61323e70 JM |
1147 | wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate", |
1148 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
1149 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1150 | goto fail; | |
1151 | } | |
1152 | if (res == HOSTAPD_ACL_PENDING) { | |
1153 | wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR | |
1154 | " waiting for an external authentication", | |
1155 | MAC2STR(mgmt->sa)); | |
1156 | /* Authentication code will re-send the authentication frame | |
1157 | * after it has received (and cached) information from the | |
1158 | * external source. */ | |
1159 | return; | |
1160 | } | |
1161 | ||
38cb0a2d IP |
1162 | sta = ap_get_sta(hapd, mgmt->sa); |
1163 | if (sta) { | |
1164 | if ((fc & WLAN_FC_RETRY) && | |
1165 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
1166 | sta->last_seq_ctrl == seq_ctrl && | |
1167 | sta->last_subtype == WLAN_FC_STYPE_AUTH) { | |
1168 | hostapd_logger(hapd, sta->addr, | |
1169 | HOSTAPD_MODULE_IEEE80211, | |
1170 | HOSTAPD_LEVEL_DEBUG, | |
1171 | "Drop repeated authentication frame seq_ctrl=0x%x", | |
1172 | seq_ctrl); | |
1173 | return; | |
1174 | } | |
09d96de0 MH |
1175 | #ifdef CONFIG_MESH |
1176 | if ((hapd->conf->mesh & MESH_ENABLED) && | |
1177 | sta->plink_state == PLINK_BLOCKED) { | |
1178 | wpa_printf(MSG_DEBUG, "Mesh peer " MACSTR | |
1179 | " is blocked - drop Authentication frame", | |
1180 | MAC2STR(mgmt->sa)); | |
1181 | return; | |
1182 | } | |
1183 | #endif /* CONFIG_MESH */ | |
38cb0a2d | 1184 | } else { |
c50d94f1 | 1185 | #ifdef CONFIG_MESH |
38cb0a2d IP |
1186 | if (hapd->conf->mesh & MESH_ENABLED) { |
1187 | /* if the mesh peer is not available, we don't do auth. | |
1188 | */ | |
3a322496 | 1189 | wpa_printf(MSG_DEBUG, "Mesh peer " MACSTR |
09d96de0 | 1190 | " not yet known - drop Authentication frame", |
3a322496 JM |
1191 | MAC2STR(mgmt->sa)); |
1192 | /* | |
1193 | * Save a copy of the frame so that it can be processed | |
1194 | * if a new peer entry is added shortly after this. | |
1195 | */ | |
1196 | wpabuf_free(hapd->mesh_pending_auth); | |
1197 | hapd->mesh_pending_auth = wpabuf_alloc_copy(mgmt, len); | |
1198 | os_get_reltime(&hapd->mesh_pending_auth_time); | |
c50d94f1 | 1199 | return; |
38cb0a2d | 1200 | } |
c50d94f1 | 1201 | #endif /* CONFIG_MESH */ |
38cb0a2d | 1202 | |
c50d94f1 BC |
1203 | sta = ap_sta_add(hapd, mgmt->sa); |
1204 | if (!sta) { | |
1205 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
1206 | goto fail; | |
1207 | } | |
6fc6879b | 1208 | } |
38cb0a2d IP |
1209 | sta->last_seq_ctrl = seq_ctrl; |
1210 | sta->last_subtype = WLAN_FC_STYPE_AUTH; | |
6fc6879b | 1211 | |
8be640b7 MB |
1212 | if (vlan_id.notempty && |
1213 | !hostapd_vlan_valid(hapd->conf->vlan, &vlan_id)) { | |
6fc6879b | 1214 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, |
8be640b7 MB |
1215 | HOSTAPD_LEVEL_INFO, |
1216 | "Invalid VLAN %d%s received from RADIUS server", | |
1217 | vlan_id.untagged, | |
1218 | vlan_id.tagged[0] ? "+" : ""); | |
1219 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1220 | goto fail; | |
1221 | } | |
1222 | if (ap_sta_set_vlan(hapd, sta, &vlan_id) < 0) { | |
1223 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1224 | goto fail; | |
6fc6879b | 1225 | } |
8be640b7 MB |
1226 | if (sta->vlan_id) |
1227 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
1228 | HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); | |
6fc6879b | 1229 | |
f2a14be7 | 1230 | hostapd_free_psk_list(sta->psk); |
5ee56c4e MB |
1231 | if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) { |
1232 | sta->psk = psk; | |
1233 | psk = NULL; | |
05ab9712 | 1234 | } else { |
05ab9712 MB |
1235 | sta->psk = NULL; |
1236 | } | |
1237 | ||
2092597f MB |
1238 | sta->identity = identity; |
1239 | identity = NULL; | |
1240 | sta->radius_cui = radius_cui; | |
1241 | radius_cui = NULL; | |
1242 | ||
6fc6879b JM |
1243 | sta->flags &= ~WLAN_STA_PREAUTH; |
1244 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
1245 | ||
5843e1c9 | 1246 | if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) |
6fc6879b JM |
1247 | sta->acct_interim_interval = acct_interim_interval; |
1248 | if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) | |
1249 | ap_sta_session_timeout(hapd, sta, session_timeout); | |
1250 | else | |
1251 | ap_sta_no_session_timeout(hapd, sta); | |
1252 | ||
bb598c3b AB |
1253 | /* |
1254 | * If the driver supports full AP client state, add a station to the | |
1255 | * driver before sending authentication reply to make sure the driver | |
1256 | * has resources, and not to go through the entire authentication and | |
1257 | * association handshake, and fail it at the end. | |
1258 | * | |
1259 | * If this is not the first transaction, in a multi-step authentication | |
1260 | * algorithm, the station already exists in the driver | |
1261 | * (sta->added_unassoc = 1) so skip it. | |
1262 | * | |
1263 | * In mesh mode, the station was already added to the driver when the | |
1264 | * NEW_PEER_CANDIDATE event is received. | |
1265 | */ | |
1266 | if (FULL_AP_CLIENT_STATE_SUPP(hapd->iface->drv_flags) && | |
1267 | !(hapd->conf->mesh & MESH_ENABLED) && | |
1268 | !(sta->added_unassoc)) { | |
1269 | /* | |
1270 | * If a station that is already associated to the AP, is trying | |
1271 | * to authenticate again, remove the STA entry, in order to make | |
1272 | * sure the STA PS state gets cleared and configuration gets | |
1273 | * updated. To handle this, station's added_unassoc flag is | |
1274 | * cleared once the station has completed association. | |
1275 | */ | |
1276 | hostapd_drv_sta_remove(hapd, sta->addr); | |
1277 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_AUTH | | |
1278 | WLAN_STA_AUTHORIZED); | |
1279 | ||
1280 | if (hostapd_sta_add(hapd, sta->addr, 0, 0, 0, 0, 0, | |
ae33239c | 1281 | NULL, NULL, sta->flags, 0, 0, 0, 0)) { |
bb598c3b AB |
1282 | hostapd_logger(hapd, sta->addr, |
1283 | HOSTAPD_MODULE_IEEE80211, | |
1284 | HOSTAPD_LEVEL_NOTICE, | |
1285 | "Could not add STA to kernel driver"); | |
1286 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
1287 | goto fail; | |
1288 | } | |
1289 | ||
1290 | sta->added_unassoc = 1; | |
1291 | } | |
1292 | ||
6fc6879b JM |
1293 | switch (auth_alg) { |
1294 | case WLAN_AUTH_OPEN: | |
1295 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1296 | HOSTAPD_LEVEL_DEBUG, | |
1297 | "authentication OK (open system)"); | |
6fc6879b JM |
1298 | sta->flags |= WLAN_STA_AUTH; |
1299 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
1300 | sta->auth_alg = WLAN_AUTH_OPEN; | |
1301 | mlme_authenticate_indication(hapd, sta); | |
6fc6879b | 1302 | break; |
7cb53ded | 1303 | #ifndef CONFIG_NO_RC4 |
6fc6879b JM |
1304 | case WLAN_AUTH_SHARED_KEY: |
1305 | resp = auth_shared_key(hapd, sta, auth_transaction, challenge, | |
1306 | fc & WLAN_FC_ISWEP); | |
1307 | sta->auth_alg = WLAN_AUTH_SHARED_KEY; | |
1308 | mlme_authenticate_indication(hapd, sta); | |
1309 | if (sta->challenge && auth_transaction == 1) { | |
1310 | resp_ies[0] = WLAN_EID_CHALLENGE; | |
1311 | resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; | |
1312 | os_memcpy(resp_ies + 2, sta->challenge, | |
1313 | WLAN_AUTH_CHALLENGE_LEN); | |
1314 | resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; | |
1315 | } | |
1316 | break; | |
7cb53ded | 1317 | #endif /* CONFIG_NO_RC4 */ |
6fc6879b JM |
1318 | #ifdef CONFIG_IEEE80211R |
1319 | case WLAN_AUTH_FT: | |
1320 | sta->auth_alg = WLAN_AUTH_FT; | |
1321 | if (sta->wpa_sm == NULL) | |
1322 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e | 1323 | sta->addr, NULL); |
6fc6879b JM |
1324 | if (sta->wpa_sm == NULL) { |
1325 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
1326 | "state machine"); | |
1327 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1328 | goto fail; | |
1329 | } | |
1330 | wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, | |
1331 | auth_transaction, mgmt->u.auth.variable, | |
1332 | len - IEEE80211_HDRLEN - | |
1333 | sizeof(mgmt->u.auth), | |
1334 | handle_auth_ft_finish, hapd); | |
1335 | /* handle_auth_ft_finish() callback will complete auth. */ | |
1336 | return; | |
1337 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
1338 | #ifdef CONFIG_SAE |
1339 | case WLAN_AUTH_SAE: | |
c50d94f1 | 1340 | #ifdef CONFIG_MESH |
afa2ffb4 JM |
1341 | if (status_code == WLAN_STATUS_SUCCESS && |
1342 | hapd->conf->mesh & MESH_ENABLED) { | |
c50d94f1 BC |
1343 | if (sta->wpa_sm == NULL) |
1344 | sta->wpa_sm = | |
1345 | wpa_auth_sta_init(hapd->wpa_auth, | |
1346 | sta->addr, NULL); | |
1347 | if (sta->wpa_sm == NULL) { | |
1348 | wpa_printf(MSG_DEBUG, | |
1349 | "SAE: Failed to initialize WPA state machine"); | |
1350 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1351 | goto fail; | |
1352 | } | |
1353 | } | |
1354 | #endif /* CONFIG_MESH */ | |
afa2ffb4 JM |
1355 | handle_auth_sae(hapd, sta, mgmt, len, auth_transaction, |
1356 | status_code); | |
c10347f2 JM |
1357 | return; |
1358 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
1359 | } |
1360 | ||
1361 | fail: | |
2092597f MB |
1362 | os_free(identity); |
1363 | os_free(radius_cui); | |
f2a14be7 | 1364 | hostapd_free_psk_list(psk); |
2092597f | 1365 | |
bb598c3b AB |
1366 | reply_res = send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, |
1367 | auth_transaction + 1, resp, resp_ies, | |
1368 | resp_ies_len); | |
1369 | ||
1370 | if (sta && sta->added_unassoc && (resp != WLAN_STATUS_SUCCESS || | |
1371 | reply_res != WLAN_STATUS_SUCCESS)) { | |
1372 | hostapd_drv_sta_remove(hapd, sta->addr); | |
1373 | sta->added_unassoc = 0; | |
1374 | } | |
6fc6879b JM |
1375 | } |
1376 | ||
1377 | ||
681753f2 | 1378 | int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) |
d42a62b3 | 1379 | { |
2991469c JM |
1380 | int i, j = 32, aid; |
1381 | ||
d42a62b3 JM |
1382 | /* get a unique AID */ |
1383 | if (sta->aid > 0) { | |
1384 | wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); | |
1385 | return 0; | |
1386 | } | |
1387 | ||
2991469c JM |
1388 | for (i = 0; i < AID_WORDS; i++) { |
1389 | if (hapd->sta_aid[i] == (u32) -1) | |
1390 | continue; | |
1391 | for (j = 0; j < 32; j++) { | |
1392 | if (!(hapd->sta_aid[i] & BIT(j))) | |
1393 | break; | |
1394 | } | |
1395 | if (j < 32) | |
d42a62b3 | 1396 | break; |
d42a62b3 | 1397 | } |
2991469c JM |
1398 | if (j == 32) |
1399 | return -1; | |
1400 | aid = i * 32 + j + 1; | |
1401 | if (aid > 2007) | |
1402 | return -1; | |
d42a62b3 | 1403 | |
2991469c JM |
1404 | sta->aid = aid; |
1405 | hapd->sta_aid[i] |= BIT(j); | |
d42a62b3 JM |
1406 | wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); |
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | ||
5586f500 JM |
1411 | static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, |
1412 | const u8 *ssid_ie, size_t ssid_ie_len) | |
6fc6879b | 1413 | { |
5586f500 JM |
1414 | if (ssid_ie == NULL) |
1415 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 1416 | |
5586f500 JM |
1417 | if (ssid_ie_len != hapd->conf->ssid.ssid_len || |
1418 | os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { | |
5586f500 JM |
1419 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1420 | HOSTAPD_LEVEL_INFO, | |
1421 | "Station tried to associate with unknown SSID " | |
b37d582e | 1422 | "'%s'", wpa_ssid_txt(ssid_ie, ssid_ie_len)); |
5586f500 | 1423 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
b0194fe0 JM |
1424 | } |
1425 | ||
5586f500 JM |
1426 | return WLAN_STATUS_SUCCESS; |
1427 | } | |
6fc6879b | 1428 | |
6fc6879b | 1429 | |
5586f500 JM |
1430 | static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, |
1431 | const u8 *wmm_ie, size_t wmm_ie_len) | |
1432 | { | |
3ae0800c | 1433 | sta->flags &= ~WLAN_STA_WMM; |
5d061637 | 1434 | sta->qosinfo = 0; |
5586f500 | 1435 | if (wmm_ie && hapd->conf->wmm_enabled) { |
5f32f79c | 1436 | struct wmm_information_element *wmm; |
5f32f79c | 1437 | |
c84b868a | 1438 | if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) { |
6fc6879b JM |
1439 | hostapd_logger(hapd, sta->addr, |
1440 | HOSTAPD_MODULE_WPA, | |
1441 | HOSTAPD_LEVEL_DEBUG, | |
3ae0800c | 1442 | "invalid WMM element in association " |
6fc6879b | 1443 | "request"); |
5f32f79c EP |
1444 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
1445 | } | |
1446 | ||
1447 | sta->flags |= WLAN_STA_WMM; | |
1448 | wmm = (struct wmm_information_element *) wmm_ie; | |
5d061637 | 1449 | sta->qosinfo = wmm->qos_info; |
6fc6879b | 1450 | } |
5586f500 JM |
1451 | return WLAN_STATUS_SUCCESS; |
1452 | } | |
6fc6879b | 1453 | |
5586f500 JM |
1454 | |
1455 | static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, | |
1456 | struct ieee802_11_elems *elems) | |
1457 | { | |
1458 | if (!elems->supp_rates) { | |
1459 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
6fc6879b JM |
1460 | HOSTAPD_LEVEL_DEBUG, |
1461 | "No supported rates element in AssocReq"); | |
5586f500 | 1462 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1463 | } |
1464 | ||
3489cfb0 JM |
1465 | if (elems->supp_rates_len + elems->ext_supp_rates_len > |
1466 | sizeof(sta->supported_rates)) { | |
5586f500 | 1467 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
6fc6879b | 1468 | HOSTAPD_LEVEL_DEBUG, |
3489cfb0 JM |
1469 | "Invalid supported rates element length %d+%d", |
1470 | elems->supp_rates_len, | |
1471 | elems->ext_supp_rates_len); | |
5586f500 | 1472 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1473 | } |
1474 | ||
3489cfb0 JM |
1475 | sta->supported_rates_len = merge_byte_arrays( |
1476 | sta->supported_rates, sizeof(sta->supported_rates), | |
1477 | elems->supp_rates, elems->supp_rates_len, | |
1478 | elems->ext_supp_rates, elems->ext_supp_rates_len); | |
6fc6879b | 1479 | |
5586f500 JM |
1480 | return WLAN_STATUS_SUCCESS; |
1481 | } | |
1482 | ||
1483 | ||
c551700f KP |
1484 | static u16 check_ext_capab(struct hostapd_data *hapd, struct sta_info *sta, |
1485 | const u8 *ext_capab_ie, size_t ext_capab_ie_len) | |
1486 | { | |
1487 | #ifdef CONFIG_INTERWORKING | |
1488 | /* check for QoS Map support */ | |
1489 | if (ext_capab_ie_len >= 5) { | |
1490 | if (ext_capab_ie[4] & 0x01) | |
1491 | sta->qos_map_enabled = 1; | |
1492 | } | |
1493 | #endif /* CONFIG_INTERWORKING */ | |
1494 | ||
98b05081 AO |
1495 | if (ext_capab_ie_len > 0) |
1496 | sta->ecsa_supported = !!(ext_capab_ie[0] & BIT(2)); | |
1497 | ||
c551700f KP |
1498 | return WLAN_STATUS_SUCCESS; |
1499 | } | |
1500 | ||
1501 | ||
5586f500 | 1502 | static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c | 1503 | const u8 *ies, size_t ies_len, int reassoc) |
5586f500 JM |
1504 | { |
1505 | struct ieee802_11_elems elems; | |
1506 | u16 resp; | |
ba091c06 | 1507 | const u8 *wpa_ie; |
5586f500 | 1508 | size_t wpa_ie_len; |
94ddef3e | 1509 | const u8 *p2p_dev_addr = NULL; |
5586f500 JM |
1510 | |
1511 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { | |
1512 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1513 | HOSTAPD_LEVEL_INFO, "Station sent an invalid " | |
1514 | "association request"); | |
1515 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1516 | } | |
1517 | ||
1518 | resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); | |
1519 | if (resp != WLAN_STATUS_SUCCESS) | |
1520 | return resp; | |
1521 | resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); | |
c551700f KP |
1522 | if (resp != WLAN_STATUS_SUCCESS) |
1523 | return resp; | |
1524 | resp = check_ext_capab(hapd, sta, elems.ext_capab, elems.ext_capab_len); | |
5586f500 JM |
1525 | if (resp != WLAN_STATUS_SUCCESS) |
1526 | return resp; | |
1527 | resp = copy_supp_rates(hapd, sta, &elems); | |
1528 | if (resp != WLAN_STATUS_SUCCESS) | |
1529 | return resp; | |
d45354be | 1530 | #ifdef CONFIG_IEEE80211N |
baae4cb9 | 1531 | resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities); |
5586f500 JM |
1532 | if (resp != WLAN_STATUS_SUCCESS) |
1533 | return resp; | |
29448243 JM |
1534 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && |
1535 | !(sta->flags & WLAN_STA_HT)) { | |
1536 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1537 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
1538 | "mandatory HT PHY - reject association"); | |
1539 | return WLAN_STATUS_ASSOC_DENIED_NO_HT; | |
1540 | } | |
d45354be | 1541 | #endif /* CONFIG_IEEE80211N */ |
5586f500 | 1542 | |
de3cdf35 | 1543 | #ifdef CONFIG_IEEE80211AC |
28ffd21c ARN |
1544 | if (hapd->iconf->ieee80211ac) { |
1545 | resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities); | |
1546 | if (resp != WLAN_STATUS_SUCCESS) | |
1547 | return resp; | |
8a458116 | 1548 | |
28ffd21c ARN |
1549 | resp = set_sta_vht_opmode(hapd, sta, elems.vht_opmode_notif); |
1550 | if (resp != WLAN_STATUS_SUCCESS) | |
1551 | return resp; | |
1552 | } | |
8a458116 | 1553 | |
140e850a MP |
1554 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && |
1555 | !(sta->flags & WLAN_STA_VHT)) { | |
1556 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1557 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
1558 | "mandatory VHT PHY - reject association"); | |
13b24a76 | 1559 | return WLAN_STATUS_ASSOC_DENIED_NO_VHT; |
140e850a | 1560 | } |
e7d0e97b YL |
1561 | |
1562 | if (hapd->conf->vendor_vht && !elems.vht_capabilities) { | |
1563 | resp = copy_sta_vendor_vht(hapd, sta, elems.vendor_vht, | |
1564 | elems.vendor_vht_len); | |
1565 | if (resp != WLAN_STATUS_SUCCESS) | |
1566 | return resp; | |
1567 | } | |
de3cdf35 MP |
1568 | #endif /* CONFIG_IEEE80211AC */ |
1569 | ||
94ddef3e JM |
1570 | #ifdef CONFIG_P2P |
1571 | if (elems.p2p) { | |
1572 | wpabuf_free(sta->p2p_ie); | |
1573 | sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, | |
1574 | P2P_IE_VENDOR_TYPE); | |
1575 | if (sta->p2p_ie) | |
1576 | p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); | |
1577 | } else { | |
1578 | wpabuf_free(sta->p2p_ie); | |
1579 | sta->p2p_ie = NULL; | |
1580 | } | |
1581 | #endif /* CONFIG_P2P */ | |
1582 | ||
6fc6879b JM |
1583 | if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { |
1584 | wpa_ie = elems.rsn_ie; | |
1585 | wpa_ie_len = elems.rsn_ie_len; | |
1586 | } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && | |
1587 | elems.wpa_ie) { | |
1588 | wpa_ie = elems.wpa_ie; | |
1589 | wpa_ie_len = elems.wpa_ie_len; | |
1590 | } else { | |
1591 | wpa_ie = NULL; | |
1592 | wpa_ie_len = 0; | |
1593 | } | |
5586f500 | 1594 | |
ad08c363 | 1595 | #ifdef CONFIG_WPS |
17f6b900 | 1596 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
c47cf42e JM |
1597 | if (hapd->conf->wps_state && elems.wps_ie) { |
1598 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " | |
1599 | "Request - assume WPS is used"); | |
1600 | sta->flags |= WLAN_STA_WPS; | |
1601 | wpabuf_free(sta->wps_ie); | |
16e46ec0 JM |
1602 | sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
1603 | WPS_IE_VENDOR_TYPE); | |
17f6b900 JM |
1604 | if (sta->wps_ie && wps_is_20(sta->wps_ie)) { |
1605 | wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); | |
1606 | sta->flags |= WLAN_STA_WPS2; | |
1607 | } | |
c47cf42e JM |
1608 | wpa_ie = NULL; |
1609 | wpa_ie_len = 0; | |
54f489be JM |
1610 | if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) { |
1611 | wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in " | |
1612 | "(Re)Association Request - reject"); | |
1613 | return WLAN_STATUS_INVALID_IE; | |
1614 | } | |
c47cf42e JM |
1615 | } else if (hapd->conf->wps_state && wpa_ie == NULL) { |
1616 | wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " | |
1617 | "(Re)Association Request - possible WPS use"); | |
1618 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
ad08c363 JM |
1619 | } else |
1620 | #endif /* CONFIG_WPS */ | |
6fc6879b | 1621 | if (hapd->conf->wpa && wpa_ie == NULL) { |
5586f500 JM |
1622 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1623 | HOSTAPD_LEVEL_INFO, | |
1624 | "No WPA/RSN IE in association request"); | |
1625 | return WLAN_STATUS_INVALID_IE; | |
6fc6879b JM |
1626 | } |
1627 | ||
1628 | if (hapd->conf->wpa && wpa_ie) { | |
1629 | int res; | |
1630 | wpa_ie -= 2; | |
1631 | wpa_ie_len += 2; | |
1632 | if (sta->wpa_sm == NULL) | |
1633 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e JM |
1634 | sta->addr, |
1635 | p2p_dev_addr); | |
6fc6879b | 1636 | if (sta->wpa_sm == NULL) { |
5586f500 JM |
1637 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " |
1638 | "state machine"); | |
1639 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b JM |
1640 | } |
1641 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
1642 | wpa_ie, wpa_ie_len, | |
1643 | elems.mdie, elems.mdie_len); | |
1644 | if (res == WPA_INVALID_GROUP) | |
1645 | resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; | |
1646 | else if (res == WPA_INVALID_PAIRWISE) | |
1647 | resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; | |
1648 | else if (res == WPA_INVALID_AKMP) | |
1649 | resp = WLAN_STATUS_AKMP_NOT_VALID; | |
1650 | else if (res == WPA_ALLOC_FAIL) | |
1651 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1652 | #ifdef CONFIG_IEEE80211W | |
1653 | else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) | |
9a9876bf | 1654 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b | 1655 | else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) |
9a9876bf | 1656 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b JM |
1657 | #endif /* CONFIG_IEEE80211W */ |
1658 | else if (res == WPA_INVALID_MDIE) | |
1659 | resp = WLAN_STATUS_INVALID_MDIE; | |
1660 | else if (res != WPA_IE_OK) | |
1661 | resp = WLAN_STATUS_INVALID_IE; | |
1662 | if (resp != WLAN_STATUS_SUCCESS) | |
5586f500 | 1663 | return resp; |
f3f7540e | 1664 | #ifdef CONFIG_IEEE80211W |
45c94154 JM |
1665 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
1666 | sta->sa_query_count > 0) | |
1667 | ap_check_sa_query_timeout(hapd, sta); | |
8f4617c6 JM |
1668 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
1669 | (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { | |
5d22a1d5 | 1670 | /* |
93b76319 JM |
1671 | * STA has already been associated with MFP and SA |
1672 | * Query timeout has not been reached. Reject the | |
1673 | * association attempt temporarily and start SA Query, | |
1674 | * if one is not pending. | |
5d22a1d5 JM |
1675 | */ |
1676 | ||
93b76319 JM |
1677 | if (sta->sa_query_count == 0) |
1678 | ap_sta_start_sa_query(hapd, sta); | |
5d22a1d5 | 1679 | |
5586f500 | 1680 | return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; |
5d22a1d5 JM |
1681 | } |
1682 | ||
f3f7540e JM |
1683 | if (wpa_auth_uses_mfp(sta->wpa_sm)) |
1684 | sta->flags |= WLAN_STA_MFP; | |
1685 | else | |
1686 | sta->flags &= ~WLAN_STA_MFP; | |
1687 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1688 | |
1689 | #ifdef CONFIG_IEEE80211R | |
1690 | if (sta->auth_alg == WLAN_AUTH_FT) { | |
1691 | if (!reassoc) { | |
1692 | wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " | |
1693 | "to use association (not " | |
1694 | "re-association) with FT auth_alg", | |
1695 | MAC2STR(sta->addr)); | |
5586f500 | 1696 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1697 | } |
1698 | ||
5586f500 JM |
1699 | resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, |
1700 | ies_len); | |
6fc6879b | 1701 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 1702 | return resp; |
6fc6879b JM |
1703 | } |
1704 | #endif /* CONFIG_IEEE80211R */ | |
5586f500 | 1705 | |
c10347f2 JM |
1706 | #ifdef CONFIG_SAE |
1707 | if (wpa_auth_uses_sae(sta->wpa_sm) && | |
f2991170 JM |
1708 | sta->auth_alg == WLAN_AUTH_OPEN) { |
1709 | struct rsn_pmksa_cache_entry *sa; | |
1710 | sa = wpa_auth_sta_get_pmksa(sta->wpa_sm); | |
1711 | if (!sa || sa->akmp != WPA_KEY_MGMT_SAE) { | |
1712 | wpa_printf(MSG_DEBUG, | |
1713 | "SAE: No PMKSA cache entry found for " | |
1714 | MACSTR, MAC2STR(sta->addr)); | |
1715 | return WLAN_STATUS_INVALID_PMKID; | |
1716 | } | |
1717 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR | |
1718 | " using PMKSA caching", MAC2STR(sta->addr)); | |
1719 | } else if (wpa_auth_uses_sae(sta->wpa_sm) && | |
1720 | sta->auth_alg != WLAN_AUTH_SAE && | |
1721 | !(sta->auth_alg == WLAN_AUTH_FT && | |
1722 | wpa_auth_uses_ft_sae(sta->wpa_sm))) { | |
c10347f2 JM |
1723 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use " |
1724 | "SAE AKM after non-SAE auth_alg %u", | |
1725 | MAC2STR(sta->addr), sta->auth_alg); | |
1726 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
1727 | } | |
1728 | #endif /* CONFIG_SAE */ | |
1729 | ||
ff36ff00 | 1730 | #ifdef CONFIG_IEEE80211N |
f0c7a986 | 1731 | if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) && |
ff36ff00 | 1732 | wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { |
5586f500 JM |
1733 | hostapd_logger(hapd, sta->addr, |
1734 | HOSTAPD_MODULE_IEEE80211, | |
1735 | HOSTAPD_LEVEL_INFO, | |
1736 | "Station tried to use TKIP with HT " | |
1737 | "association"); | |
1738 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; | |
ff36ff00 JM |
1739 | } |
1740 | #endif /* CONFIG_IEEE80211N */ | |
a14896e8 JM |
1741 | #ifdef CONFIG_HS20 |
1742 | } else if (hapd->conf->osen) { | |
1743 | if (elems.osen == NULL) { | |
1744 | hostapd_logger( | |
1745 | hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1746 | HOSTAPD_LEVEL_INFO, | |
1747 | "No HS 2.0 OSEN element in association request"); | |
1748 | return WLAN_STATUS_INVALID_IE; | |
1749 | } | |
1750 | ||
1751 | wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association"); | |
1752 | if (sta->wpa_sm == NULL) | |
1753 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
1754 | sta->addr, NULL); | |
1755 | if (sta->wpa_sm == NULL) { | |
1756 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " | |
1757 | "state machine"); | |
1758 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1759 | } | |
1760 | if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm, | |
1761 | elems.osen - 2, elems.osen_len + 2) < 0) | |
1762 | return WLAN_STATUS_INVALID_IE; | |
1763 | #endif /* CONFIG_HS20 */ | |
a8d05fca JM |
1764 | } else |
1765 | wpa_auth_sta_no_wpa(sta->wpa_sm); | |
6fc6879b | 1766 | |
b305c684 | 1767 | #ifdef CONFIG_P2P |
3f4ce13f | 1768 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len); |
b305c684 JM |
1769 | #endif /* CONFIG_P2P */ |
1770 | ||
f403dcd6 JM |
1771 | #ifdef CONFIG_HS20 |
1772 | wpabuf_free(sta->hs20_ie); | |
1773 | if (elems.hs20 && elems.hs20_len > 4) { | |
1774 | sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, | |
1775 | elems.hs20_len - 4); | |
1776 | } else | |
1777 | sta->hs20_ie = NULL; | |
1778 | #endif /* CONFIG_HS20 */ | |
1779 | ||
ae667c08 AN |
1780 | #ifdef CONFIG_FST |
1781 | wpabuf_free(sta->mb_ies); | |
1782 | if (hapd->iface->fst) | |
1783 | sta->mb_ies = mb_ies_by_info(&elems.mb_ies); | |
1784 | else | |
1785 | sta->mb_ies = NULL; | |
1786 | #endif /* CONFIG_FST */ | |
1787 | ||
4c572281 | 1788 | #ifdef CONFIG_MBO |
6332aaf3 JM |
1789 | mbo_ap_check_sta_assoc(hapd, sta, &elems); |
1790 | ||
4c572281 JM |
1791 | if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) && |
1792 | elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) && | |
1793 | hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) { | |
1794 | wpa_printf(MSG_INFO, | |
1795 | "MBO: Reject WPA2 association without PMF"); | |
1796 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1797 | } | |
1798 | #endif /* CONFIG_MBO */ | |
1799 | ||
adf0478e JM |
1800 | ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes, |
1801 | elems.supp_op_classes_len); | |
1802 | ||
629e1804 DS |
1803 | if ((sta->capability & WLAN_CAPABILITY_RADIO_MEASUREMENT) && |
1804 | elems.rrm_enabled && | |
1805 | elems.rrm_enabled_len >= sizeof(sta->rrm_enabled_capa)) | |
1806 | os_memcpy(sta->rrm_enabled_capa, elems.rrm_enabled, | |
1807 | sizeof(sta->rrm_enabled_capa)); | |
1808 | ||
5586f500 JM |
1809 | return WLAN_STATUS_SUCCESS; |
1810 | } | |
1811 | ||
1812 | ||
1813 | static void send_deauth(struct hostapd_data *hapd, const u8 *addr, | |
1814 | u16 reason_code) | |
1815 | { | |
1816 | int send_len; | |
1817 | struct ieee80211_mgmt reply; | |
1818 | ||
1819 | os_memset(&reply, 0, sizeof(reply)); | |
1820 | reply.frame_control = | |
1821 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); | |
1822 | os_memcpy(reply.da, addr, ETH_ALEN); | |
1823 | os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); | |
1824 | os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); | |
1825 | ||
1826 | send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); | |
1827 | reply.u.deauth.reason_code = host_to_le16(reason_code); | |
1828 | ||
8cfa3527 | 1829 | if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0) |
5586f500 JM |
1830 | wpa_printf(MSG_INFO, "Failed to send deauth: %s", |
1831 | strerror(errno)); | |
1832 | } | |
1833 | ||
1834 | ||
3f81ac07 AO |
1835 | static int add_associated_sta(struct hostapd_data *hapd, |
1836 | struct sta_info *sta) | |
1837 | { | |
1838 | struct ieee80211_ht_capabilities ht_cap; | |
1839 | struct ieee80211_vht_capabilities vht_cap; | |
1840 | ||
1841 | /* | |
1842 | * Remove the STA entry to ensure the STA PS state gets cleared and | |
1843 | * configuration gets updated. This is relevant for cases, such as | |
1844 | * FT-over-the-DS, where a station re-associates back to the same AP but | |
1845 | * skips the authentication flow, or if working with a driver that | |
1846 | * does not support full AP client state. | |
1847 | */ | |
1848 | if (!sta->added_unassoc) | |
1849 | hostapd_drv_sta_remove(hapd, sta->addr); | |
1850 | ||
1851 | #ifdef CONFIG_IEEE80211N | |
1852 | if (sta->flags & WLAN_STA_HT) | |
1853 | hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); | |
1854 | #endif /* CONFIG_IEEE80211N */ | |
1855 | #ifdef CONFIG_IEEE80211AC | |
1856 | if (sta->flags & WLAN_STA_VHT) | |
1857 | hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap); | |
1858 | #endif /* CONFIG_IEEE80211AC */ | |
1859 | ||
1860 | /* | |
1861 | * Add the station with forced WLAN_STA_ASSOC flag. The sta->flags | |
1862 | * will be set when the ACK frame for the (Re)Association Response frame | |
1863 | * is processed (TX status driver event). | |
1864 | */ | |
1865 | if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability, | |
1866 | sta->supported_rates, sta->supported_rates_len, | |
1867 | sta->listen_interval, | |
1868 | sta->flags & WLAN_STA_HT ? &ht_cap : NULL, | |
1869 | sta->flags & WLAN_STA_VHT ? &vht_cap : NULL, | |
1870 | sta->flags | WLAN_STA_ASSOC, sta->qosinfo, | |
ae33239c AB |
1871 | sta->vht_opmode, sta->p2p_ie ? 1 : 0, |
1872 | sta->added_unassoc)) { | |
3f81ac07 AO |
1873 | hostapd_logger(hapd, sta->addr, |
1874 | HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_NOTICE, | |
1875 | "Could not %s STA to kernel driver", | |
1876 | sta->added_unassoc ? "set" : "add"); | |
1877 | ||
1878 | if (sta->added_unassoc) { | |
1879 | hostapd_drv_sta_remove(hapd, sta->addr); | |
1880 | sta->added_unassoc = 0; | |
1881 | } | |
1882 | ||
1883 | return -1; | |
1884 | } | |
1885 | ||
1886 | sta->added_unassoc = 0; | |
1887 | ||
1888 | return 0; | |
1889 | } | |
1890 | ||
1891 | ||
bb598c3b AB |
1892 | static u16 send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, |
1893 | u16 status_code, int reassoc, const u8 *ies, | |
1894 | size_t ies_len) | |
5586f500 JM |
1895 | { |
1896 | int send_len; | |
1897 | u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; | |
1898 | struct ieee80211_mgmt *reply; | |
1899 | u8 *p; | |
1900 | ||
1901 | os_memset(buf, 0, sizeof(buf)); | |
1902 | reply = (struct ieee80211_mgmt *) buf; | |
1903 | reply->frame_control = | |
1904 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
1905 | (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : | |
1906 | WLAN_FC_STYPE_ASSOC_RESP)); | |
1907 | os_memcpy(reply->da, sta->addr, ETH_ALEN); | |
1908 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
1909 | os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); | |
1910 | ||
1911 | send_len = IEEE80211_HDRLEN; | |
1912 | send_len += sizeof(reply->u.assoc_resp); | |
1913 | reply->u.assoc_resp.capab_info = | |
f41ded6f | 1914 | host_to_le16(hostapd_own_capab_info(hapd)); |
5586f500 | 1915 | reply->u.assoc_resp.status_code = host_to_le16(status_code); |
93a1caec | 1916 | reply->u.assoc_resp.aid = host_to_le16(sta->aid | BIT(14) | BIT(15)); |
5586f500 JM |
1917 | /* Supported rates */ |
1918 | p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); | |
1919 | /* Extended supported rates */ | |
1920 | p = hostapd_eid_ext_supp_rates(hapd, p); | |
5586f500 JM |
1921 | |
1922 | #ifdef CONFIG_IEEE80211R | |
1923 | if (status_code == WLAN_STATUS_SUCCESS) { | |
1924 | /* IEEE 802.11r: Mobility Domain Information, Fast BSS | |
1925 | * Transition Information, RSN, [RIC Response] */ | |
1926 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, | |
1927 | buf + sizeof(buf) - p, | |
1928 | sta->auth_alg, ies, ies_len); | |
1929 | } | |
1930 | #endif /* CONFIG_IEEE80211R */ | |
1931 | ||
1932 | #ifdef CONFIG_IEEE80211W | |
1933 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) | |
1934 | p = hostapd_eid_assoc_comeback_time(hapd, sta, p); | |
1935 | #endif /* CONFIG_IEEE80211W */ | |
1936 | ||
1bc774a1 JM |
1937 | #ifdef CONFIG_IEEE80211N |
1938 | p = hostapd_eid_ht_capabilities(hapd, p); | |
1939 | p = hostapd_eid_ht_operation(hapd, p); | |
1940 | #endif /* CONFIG_IEEE80211N */ | |
1941 | ||
14708b50 | 1942 | #ifdef CONFIG_IEEE80211AC |
e7d0e97b YL |
1943 | if (hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) { |
1944 | p = hostapd_eid_vht_capabilities(hapd, p); | |
1945 | p = hostapd_eid_vht_operation(hapd, p); | |
1946 | } | |
14708b50 MP |
1947 | #endif /* CONFIG_IEEE80211AC */ |
1948 | ||
1161ff1e | 1949 | p = hostapd_eid_ext_capab(hapd, p); |
b6668734 | 1950 | p = hostapd_eid_bss_max_idle_period(hapd, p); |
c551700f KP |
1951 | if (sta->qos_map_enabled) |
1952 | p = hostapd_eid_qos_map_set(hapd, p); | |
1161ff1e | 1953 | |
347827ff AN |
1954 | #ifdef CONFIG_FST |
1955 | if (hapd->iface->fst_ies) { | |
1956 | os_memcpy(p, wpabuf_head(hapd->iface->fst_ies), | |
1957 | wpabuf_len(hapd->iface->fst_ies)); | |
1958 | p += wpabuf_len(hapd->iface->fst_ies); | |
1959 | } | |
1960 | #endif /* CONFIG_FST */ | |
1961 | ||
e7d0e97b YL |
1962 | #ifdef CONFIG_IEEE80211AC |
1963 | if (hapd->conf->vendor_vht && (sta->flags & WLAN_STA_VENDOR_VHT)) | |
1964 | p = hostapd_eid_vendor_vht(hapd, p); | |
1965 | #endif /* CONFIG_IEEE80211AC */ | |
1966 | ||
1bc774a1 JM |
1967 | if (sta->flags & WLAN_STA_WMM) |
1968 | p = hostapd_eid_wmm(hapd, p); | |
1969 | ||
ed7a09f9 | 1970 | #ifdef CONFIG_WPS |
71093e5e JM |
1971 | if ((sta->flags & WLAN_STA_WPS) || |
1972 | ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa)) { | |
ed7a09f9 JM |
1973 | struct wpabuf *wps = wps_build_assoc_resp_ie(); |
1974 | if (wps) { | |
1975 | os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps)); | |
1976 | p += wpabuf_len(wps); | |
1977 | wpabuf_free(wps); | |
1978 | } | |
1979 | } | |
1980 | #endif /* CONFIG_WPS */ | |
1981 | ||
8ccbe415 | 1982 | #ifdef CONFIG_P2P |
4f6cd3f4 | 1983 | if (sta->p2p_ie && hapd->p2p_group) { |
8ccbe415 JM |
1984 | struct wpabuf *p2p_resp_ie; |
1985 | enum p2p_status_code status; | |
1986 | switch (status_code) { | |
1987 | case WLAN_STATUS_SUCCESS: | |
1988 | status = P2P_SC_SUCCESS; | |
1989 | break; | |
1990 | case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: | |
1991 | status = P2P_SC_FAIL_LIMIT_REACHED; | |
1992 | break; | |
1993 | default: | |
1994 | status = P2P_SC_FAIL_INVALID_PARAMS; | |
1995 | break; | |
1996 | } | |
1997 | p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status); | |
1998 | if (p2p_resp_ie) { | |
1999 | os_memcpy(p, wpabuf_head(p2p_resp_ie), | |
2000 | wpabuf_len(p2p_resp_ie)); | |
2001 | p += wpabuf_len(p2p_resp_ie); | |
2002 | wpabuf_free(p2p_resp_ie); | |
2003 | } | |
2004 | } | |
2005 | #endif /* CONFIG_P2P */ | |
2006 | ||
962473c1 JM |
2007 | #ifdef CONFIG_P2P_MANAGER |
2008 | if (hapd->conf->p2p & P2P_MANAGE) | |
2009 | p = hostapd_eid_p2p_manage(hapd, p); | |
2010 | #endif /* CONFIG_P2P_MANAGER */ | |
2011 | ||
fb9a1c3e AS |
2012 | p = hostapd_eid_mbo(hapd, p, buf + sizeof(buf) - p); |
2013 | ||
a9112270 BKB |
2014 | if (hapd->conf->assocresp_elements && |
2015 | (size_t) (buf + sizeof(buf) - p) >= | |
2016 | wpabuf_len(hapd->conf->assocresp_elements)) { | |
2017 | os_memcpy(p, wpabuf_head(hapd->conf->assocresp_elements), | |
2018 | wpabuf_len(hapd->conf->assocresp_elements)); | |
2019 | p += wpabuf_len(hapd->conf->assocresp_elements); | |
2020 | } | |
2021 | ||
5586f500 JM |
2022 | send_len += p - reply->u.assoc_resp.variable; |
2023 | ||
bb598c3b | 2024 | if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0) { |
5586f500 JM |
2025 | wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", |
2026 | strerror(errno)); | |
bb598c3b AB |
2027 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
2028 | } | |
2029 | ||
2030 | return WLAN_STATUS_SUCCESS; | |
5586f500 JM |
2031 | } |
2032 | ||
2033 | ||
2034 | static void handle_assoc(struct hostapd_data *hapd, | |
b57e086c JM |
2035 | const struct ieee80211_mgmt *mgmt, size_t len, |
2036 | int reassoc) | |
5586f500 | 2037 | { |
38cb0a2d | 2038 | u16 capab_info, listen_interval, seq_ctrl, fc; |
bb598c3b | 2039 | u16 resp = WLAN_STATUS_SUCCESS, reply_res; |
b57e086c | 2040 | const u8 *pos; |
5586f500 JM |
2041 | int left, i; |
2042 | struct sta_info *sta; | |
2043 | ||
2044 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : | |
2045 | sizeof(mgmt->u.assoc_req))) { | |
61323e70 JM |
2046 | wpa_printf(MSG_INFO, "handle_assoc(reassoc=%d) - too short payload (len=%lu)", |
2047 | reassoc, (unsigned long) len); | |
5586f500 JM |
2048 | return; |
2049 | } | |
2050 | ||
c2aff6b1 JB |
2051 | #ifdef CONFIG_TESTING_OPTIONS |
2052 | if (reassoc) { | |
06df2aa6 | 2053 | if (hapd->iconf->ignore_reassoc_probability > 0.0 && |
c2aff6b1 JB |
2054 | drand48() < hapd->iconf->ignore_reassoc_probability) { |
2055 | wpa_printf(MSG_INFO, | |
2056 | "TESTING: ignoring reassoc request from " | |
2057 | MACSTR, MAC2STR(mgmt->sa)); | |
2058 | return; | |
2059 | } | |
2060 | } else { | |
06df2aa6 | 2061 | if (hapd->iconf->ignore_assoc_probability > 0.0 && |
c2aff6b1 JB |
2062 | drand48() < hapd->iconf->ignore_assoc_probability) { |
2063 | wpa_printf(MSG_INFO, | |
2064 | "TESTING: ignoring assoc request from " | |
2065 | MACSTR, MAC2STR(mgmt->sa)); | |
2066 | return; | |
2067 | } | |
2068 | } | |
2069 | #endif /* CONFIG_TESTING_OPTIONS */ | |
2070 | ||
38cb0a2d IP |
2071 | fc = le_to_host16(mgmt->frame_control); |
2072 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
2073 | ||
5586f500 JM |
2074 | if (reassoc) { |
2075 | capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); | |
2076 | listen_interval = le_to_host16( | |
2077 | mgmt->u.reassoc_req.listen_interval); | |
2078 | wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR | |
2079 | " capab_info=0x%02x listen_interval=%d current_ap=" | |
38cb0a2d | 2080 | MACSTR " seq_ctrl=0x%x%s", |
5586f500 | 2081 | MAC2STR(mgmt->sa), capab_info, listen_interval, |
38cb0a2d IP |
2082 | MAC2STR(mgmt->u.reassoc_req.current_ap), |
2083 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
2084 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); |
2085 | pos = mgmt->u.reassoc_req.variable; | |
2086 | } else { | |
2087 | capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); | |
2088 | listen_interval = le_to_host16( | |
2089 | mgmt->u.assoc_req.listen_interval); | |
2090 | wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR | |
38cb0a2d IP |
2091 | " capab_info=0x%02x listen_interval=%d " |
2092 | "seq_ctrl=0x%x%s", | |
2093 | MAC2STR(mgmt->sa), capab_info, listen_interval, | |
2094 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
2095 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); |
2096 | pos = mgmt->u.assoc_req.variable; | |
2097 | } | |
2098 | ||
2099 | sta = ap_get_sta(hapd, mgmt->sa); | |
2100 | #ifdef CONFIG_IEEE80211R | |
2101 | if (sta && sta->auth_alg == WLAN_AUTH_FT && | |
2102 | (sta->flags & WLAN_STA_AUTH) == 0) { | |
2103 | wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " | |
2104 | "prior to authentication since it is using " | |
2105 | "over-the-DS FT", MAC2STR(mgmt->sa)); | |
bb598c3b AB |
2106 | |
2107 | /* | |
2108 | * Mark station as authenticated, to avoid adding station | |
2109 | * entry in the driver as associated and not authenticated | |
2110 | */ | |
2111 | sta->flags |= WLAN_STA_AUTH; | |
5586f500 JM |
2112 | } else |
2113 | #endif /* CONFIG_IEEE80211R */ | |
2114 | if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { | |
2115 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2116 | HOSTAPD_LEVEL_INFO, "Station tried to " | |
2117 | "associate before authentication " | |
2118 | "(aid=%d flags=0x%x)", | |
2119 | sta ? sta->aid : -1, | |
2120 | sta ? sta->flags : 0); | |
2121 | send_deauth(hapd, mgmt->sa, | |
2122 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); | |
2123 | return; | |
2124 | } | |
2125 | ||
38cb0a2d IP |
2126 | if ((fc & WLAN_FC_RETRY) && |
2127 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
2128 | sta->last_seq_ctrl == seq_ctrl && | |
2129 | sta->last_subtype == reassoc ? WLAN_FC_STYPE_REASSOC_REQ : | |
2130 | WLAN_FC_STYPE_ASSOC_REQ) { | |
2131 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2132 | HOSTAPD_LEVEL_DEBUG, | |
2133 | "Drop repeated association frame seq_ctrl=0x%x", | |
2134 | seq_ctrl); | |
2135 | return; | |
2136 | } | |
2137 | sta->last_seq_ctrl = seq_ctrl; | |
2138 | sta->last_subtype = reassoc ? WLAN_FC_STYPE_REASSOC_REQ : | |
2139 | WLAN_FC_STYPE_ASSOC_REQ; | |
2140 | ||
5586f500 JM |
2141 | if (hapd->tkip_countermeasures) { |
2142 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
2143 | goto fail; | |
2144 | } | |
2145 | ||
2146 | if (listen_interval > hapd->conf->max_listen_interval) { | |
2147 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2148 | HOSTAPD_LEVEL_DEBUG, | |
2149 | "Too large Listen Interval (%d)", | |
2150 | listen_interval); | |
2151 | resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; | |
2152 | goto fail; | |
2153 | } | |
2154 | ||
fb9a1c3e AS |
2155 | #ifdef CONFIG_MBO |
2156 | if (hapd->conf->mbo_enabled && hapd->mbo_assoc_disallow) { | |
2157 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
2158 | goto fail; | |
2159 | } | |
2160 | #endif /* CONFIG_MBO */ | |
2161 | ||
629e1804 DS |
2162 | /* |
2163 | * sta->capability is used in check_assoc_ies() for RRM enabled | |
2164 | * capability element. | |
2165 | */ | |
2166 | sta->capability = capab_info; | |
2167 | ||
5586f500 JM |
2168 | /* followed by SSID and Supported rates; and HT capabilities if 802.11n |
2169 | * is used */ | |
2170 | resp = check_assoc_ies(hapd, sta, pos, left, reassoc); | |
2171 | if (resp != WLAN_STATUS_SUCCESS) | |
2172 | goto fail; | |
2173 | ||
2174 | if (hostapd_get_aid(hapd, sta) < 0) { | |
2175 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2176 | HOSTAPD_LEVEL_INFO, "No room for more AIDs"); | |
2177 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
2178 | goto fail; | |
2179 | } | |
2180 | ||
5586f500 JM |
2181 | sta->listen_interval = listen_interval; |
2182 | ||
6fc6879b JM |
2183 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) |
2184 | sta->flags |= WLAN_STA_NONERP; | |
2185 | for (i = 0; i < sta->supported_rates_len; i++) { | |
2186 | if ((sta->supported_rates[i] & 0x7f) > 22) { | |
2187 | sta->flags &= ~WLAN_STA_NONERP; | |
2188 | break; | |
2189 | } | |
2190 | } | |
2191 | if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { | |
2192 | sta->nonerp_set = 1; | |
2193 | hapd->iface->num_sta_non_erp++; | |
2194 | if (hapd->iface->num_sta_non_erp == 1) | |
2195 | ieee802_11_set_beacons(hapd->iface); | |
2196 | } | |
2197 | ||
2198 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && | |
2199 | !sta->no_short_slot_time_set) { | |
2200 | sta->no_short_slot_time_set = 1; | |
2201 | hapd->iface->num_sta_no_short_slot_time++; | |
2202 | if (hapd->iface->current_mode->mode == | |
2203 | HOSTAPD_MODE_IEEE80211G && | |
2204 | hapd->iface->num_sta_no_short_slot_time == 1) | |
2205 | ieee802_11_set_beacons(hapd->iface); | |
2206 | } | |
2207 | ||
2208 | if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
2209 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
2210 | else | |
2211 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
2212 | ||
2213 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
2214 | !sta->no_short_preamble_set) { | |
2215 | sta->no_short_preamble_set = 1; | |
2216 | hapd->iface->num_sta_no_short_preamble++; | |
2217 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G | |
2218 | && hapd->iface->num_sta_no_short_preamble == 1) | |
2219 | ieee802_11_set_beacons(hapd->iface); | |
2220 | } | |
2221 | ||
d45354be | 2222 | #ifdef CONFIG_IEEE80211N |
5586f500 | 2223 | update_ht_state(hapd, sta); |
d45354be | 2224 | #endif /* CONFIG_IEEE80211N */ |
de9289c8 | 2225 | |
6fc6879b JM |
2226 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
2227 | HOSTAPD_LEVEL_DEBUG, | |
2228 | "association OK (aid %d)", sta->aid); | |
2229 | /* Station will be marked associated, after it acknowledges AssocResp | |
2230 | */ | |
b8281964 | 2231 | sta->flags |= WLAN_STA_ASSOC_REQ_OK; |
6fc6879b | 2232 | |
6f5c8dbd JM |
2233 | #ifdef CONFIG_IEEE80211W |
2234 | if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { | |
2235 | wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " | |
2236 | "SA Query procedure", reassoc ? "re" : ""); | |
2237 | /* TODO: Send a protected Disassociate frame to the STA using | |
2238 | * the old key and Reason Code "Previous Authentication no | |
2239 | * longer valid". Make sure this is only sent protected since | |
2240 | * unprotected frame would be received by the STA that is now | |
2241 | * trying to associate. | |
2242 | */ | |
2243 | } | |
2244 | #endif /* CONFIG_IEEE80211W */ | |
2245 | ||
6fc6879b JM |
2246 | /* Make sure that the previously registered inactivity timer will not |
2247 | * remove the STA immediately. */ | |
2248 | sta->timeout_next = STA_NULLFUNC; | |
2249 | ||
2250 | fail: | |
3f81ac07 AO |
2251 | /* |
2252 | * In case of a successful response, add the station to the driver. | |
2253 | * Otherwise, the kernel may ignore Data frames before we process the | |
2254 | * ACK frame (TX status). In case of a failure, this station will be | |
2255 | * removed. | |
2256 | * | |
2257 | * Note that this is not compliant with the IEEE 802.11 standard that | |
2258 | * states that a non-AP station should transition into the | |
2259 | * authenticated/associated state only after the station acknowledges | |
2260 | * the (Re)Association Response frame. However, still do this as: | |
2261 | * | |
2262 | * 1. In case the station does not acknowledge the (Re)Association | |
2263 | * Response frame, it will be removed. | |
2264 | * 2. Data frames will be dropped in the kernel until the station is | |
2265 | * set into authorized state, and there are no significant known | |
2266 | * issues with processing other non-Data Class 3 frames during this | |
2267 | * window. | |
2268 | */ | |
2269 | if (resp == WLAN_STATUS_SUCCESS && add_associated_sta(hapd, sta)) | |
2270 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
2271 | ||
bb598c3b | 2272 | reply_res = send_assoc_resp(hapd, sta, resp, reassoc, pos, left); |
3f81ac07 AO |
2273 | |
2274 | /* | |
2275 | * Remove the station in case tranmission of a success response fails | |
2276 | * (the STA was added associated to the driver) or if the station was | |
2277 | * previously added unassociated. | |
2278 | */ | |
2279 | if ((reply_res != WLAN_STATUS_SUCCESS && | |
2280 | resp == WLAN_STATUS_SUCCESS) || sta->added_unassoc) { | |
bb598c3b AB |
2281 | hostapd_drv_sta_remove(hapd, sta->addr); |
2282 | sta->added_unassoc = 0; | |
2283 | } | |
6fc6879b JM |
2284 | } |
2285 | ||
2286 | ||
6fc6879b | 2287 | static void handle_disassoc(struct hostapd_data *hapd, |
f8b1f695 | 2288 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
2289 | { |
2290 | struct sta_info *sta; | |
2291 | ||
2292 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { | |
61323e70 JM |
2293 | wpa_printf(MSG_INFO, "handle_disassoc - too short payload (len=%lu)", |
2294 | (unsigned long) len); | |
6fc6879b JM |
2295 | return; |
2296 | } | |
2297 | ||
2298 | wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", | |
2299 | MAC2STR(mgmt->sa), | |
2300 | le_to_host16(mgmt->u.disassoc.reason_code)); | |
2301 | ||
6fc6879b JM |
2302 | sta = ap_get_sta(hapd, mgmt->sa); |
2303 | if (sta == NULL) { | |
61323e70 JM |
2304 | wpa_printf(MSG_INFO, "Station " MACSTR " trying to disassociate, but it is not associated", |
2305 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
2306 | return; |
2307 | } | |
2308 | ||
ae055af4 | 2309 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 2310 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 | 2311 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK); |
6fc6879b JM |
2312 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); |
2313 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2314 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
2315 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
2316 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
2317 | /* Stop Accounting and IEEE 802.1X sessions, but leave the STA | |
2318 | * authenticated. */ | |
2319 | accounting_sta_stop(hapd, sta); | |
d7c3347f | 2320 | ieee802_1x_free_station(hapd, sta); |
7d597d46 | 2321 | if (sta->ipaddr) |
ed4ddb6d | 2322 | hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr); |
bd00c431 | 2323 | ap_sta_ip6addr_del(hapd, sta); |
51e2a27a | 2324 | hostapd_drv_sta_remove(hapd, sta->addr); |
bb598c3b | 2325 | sta->added_unassoc = 0; |
6fc6879b JM |
2326 | |
2327 | if (sta->timeout_next == STA_NULLFUNC || | |
2328 | sta->timeout_next == STA_DISASSOC) { | |
2329 | sta->timeout_next = STA_DEAUTH; | |
2330 | eloop_cancel_timeout(ap_handle_timer, hapd, sta); | |
2331 | eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, | |
2332 | hapd, sta); | |
2333 | } | |
2334 | ||
2335 | mlme_disassociate_indication( | |
2336 | hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); | |
2337 | } | |
2338 | ||
2339 | ||
2340 | static void handle_deauth(struct hostapd_data *hapd, | |
f8b1f695 | 2341 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
2342 | { |
2343 | struct sta_info *sta; | |
2344 | ||
2345 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { | |
3ec1e902 JM |
2346 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short " |
2347 | "payload (len=%lu)", (unsigned long) len); | |
6fc6879b JM |
2348 | return; |
2349 | } | |
2350 | ||
3ec1e902 | 2351 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR |
24d75245 BG |
2352 | " reason_code=%d", |
2353 | MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code)); | |
6fc6879b | 2354 | |
6fc6879b JM |
2355 | sta = ap_get_sta(hapd, mgmt->sa); |
2356 | if (sta == NULL) { | |
3ec1e902 JM |
2357 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying " |
2358 | "to deauthenticate, but it is not authenticated", | |
24d75245 | 2359 | MAC2STR(mgmt->sa)); |
6fc6879b JM |
2360 | return; |
2361 | } | |
2362 | ||
ae055af4 | 2363 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 2364 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 JM |
2365 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | |
2366 | WLAN_STA_ASSOC_REQ_OK); | |
6fc6879b JM |
2367 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); |
2368 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2369 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
2370 | mlme_deauthenticate_indication( | |
2371 | hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); | |
2372 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
2373 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
2374 | ap_free_sta(hapd, sta); | |
2375 | } | |
2376 | ||
2377 | ||
2378 | static void handle_beacon(struct hostapd_data *hapd, | |
b57e086c | 2379 | const struct ieee80211_mgmt *mgmt, size_t len, |
6fc6879b JM |
2380 | struct hostapd_frame_info *fi) |
2381 | { | |
2382 | struct ieee802_11_elems elems; | |
2383 | ||
2384 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { | |
61323e70 JM |
2385 | wpa_printf(MSG_INFO, "handle_beacon - too short payload (len=%lu)", |
2386 | (unsigned long) len); | |
6fc6879b JM |
2387 | return; |
2388 | } | |
2389 | ||
3d536eb4 | 2390 | (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, |
6fc6879b JM |
2391 | len - (IEEE80211_HDRLEN + |
2392 | sizeof(mgmt->u.beacon)), &elems, | |
2393 | 0); | |
2394 | ||
6fc6879b JM |
2395 | ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); |
2396 | } | |
2397 | ||
2398 | ||
5d22a1d5 | 2399 | #ifdef CONFIG_IEEE80211W |
88b4b424 | 2400 | |
912b34f0 JM |
2401 | static int hostapd_sa_query_action(struct hostapd_data *hapd, |
2402 | const struct ieee80211_mgmt *mgmt, | |
2403 | size_t len) | |
5d22a1d5 | 2404 | { |
b57e086c | 2405 | const u8 *end; |
5d22a1d5 | 2406 | |
93b76319 JM |
2407 | end = mgmt->u.action.u.sa_query_resp.trans_id + |
2408 | WLAN_SA_QUERY_TR_ID_LEN; | |
5d22a1d5 | 2409 | if (((u8 *) mgmt) + len < end) { |
93b76319 | 2410 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action " |
5d22a1d5 | 2411 | "frame (len=%lu)", (unsigned long) len); |
912b34f0 | 2412 | return 0; |
5d22a1d5 JM |
2413 | } |
2414 | ||
d4370eac MP |
2415 | ieee802_11_sa_query_action(hapd, mgmt->sa, |
2416 | mgmt->u.action.u.sa_query_resp.action, | |
2417 | mgmt->u.action.u.sa_query_resp.trans_id); | |
912b34f0 | 2418 | return 1; |
5d22a1d5 | 2419 | } |
5d22a1d5 JM |
2420 | |
2421 | ||
c4e281fd JM |
2422 | static int robust_action_frame(u8 category) |
2423 | { | |
2424 | return category != WLAN_ACTION_PUBLIC && | |
2425 | category != WLAN_ACTION_HT; | |
2426 | } | |
9f64b827 | 2427 | #endif /* CONFIG_IEEE80211W */ |
c4e281fd JM |
2428 | |
2429 | ||
912b34f0 JM |
2430 | static int handle_action(struct hostapd_data *hapd, |
2431 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b | 2432 | { |
c4e281fd | 2433 | struct sta_info *sta; |
46eeedac | 2434 | sta = ap_get_sta(hapd, mgmt->sa); |
c4e281fd | 2435 | |
6fc6879b JM |
2436 | if (len < IEEE80211_HDRLEN + 1) { |
2437 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2438 | HOSTAPD_LEVEL_DEBUG, | |
2439 | "handle_action - too short payload (len=%lu)", | |
2440 | (unsigned long) len); | |
912b34f0 | 2441 | return 0; |
6fc6879b JM |
2442 | } |
2443 | ||
c79938a5 JM |
2444 | if (mgmt->u.action.category != WLAN_ACTION_PUBLIC && |
2445 | (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { | |
2446 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action " | |
2447 | "frame (category=%u) from unassociated STA " MACSTR, | |
2448 | MAC2STR(mgmt->sa), mgmt->u.action.category); | |
912b34f0 | 2449 | return 0; |
c79938a5 JM |
2450 | } |
2451 | ||
c4e281fd JM |
2452 | #ifdef CONFIG_IEEE80211W |
2453 | if (sta && (sta->flags & WLAN_STA_MFP) && | |
7b2c42f8 JM |
2454 | !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP)) && |
2455 | robust_action_frame(mgmt->u.action.category)) { | |
c4e281fd JM |
2456 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
2457 | HOSTAPD_LEVEL_DEBUG, | |
2458 | "Dropped unprotected Robust Action frame from " | |
2459 | "an MFP STA"); | |
912b34f0 | 2460 | return 0; |
c4e281fd JM |
2461 | } |
2462 | #endif /* CONFIG_IEEE80211W */ | |
2463 | ||
38cb0a2d IP |
2464 | if (sta) { |
2465 | u16 fc = le_to_host16(mgmt->frame_control); | |
2466 | u16 seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
2467 | ||
2468 | if ((fc & WLAN_FC_RETRY) && | |
2469 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
2470 | sta->last_seq_ctrl == seq_ctrl && | |
2471 | sta->last_subtype == WLAN_FC_STYPE_ACTION) { | |
2472 | hostapd_logger(hapd, sta->addr, | |
2473 | HOSTAPD_MODULE_IEEE80211, | |
2474 | HOSTAPD_LEVEL_DEBUG, | |
2475 | "Drop repeated action frame seq_ctrl=0x%x", | |
2476 | seq_ctrl); | |
2477 | return 1; | |
2478 | } | |
2479 | ||
2480 | sta->last_seq_ctrl = seq_ctrl; | |
2481 | sta->last_subtype = WLAN_FC_STYPE_ACTION; | |
2482 | } | |
2483 | ||
6fc6879b JM |
2484 | switch (mgmt->u.action.category) { |
2485 | #ifdef CONFIG_IEEE80211R | |
2486 | case WLAN_ACTION_FT: | |
d6c6b1fb JM |
2487 | if (!sta || |
2488 | wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, | |
6fc6879b JM |
2489 | len - IEEE80211_HDRLEN)) |
2490 | break; | |
912b34f0 | 2491 | return 1; |
6fc6879b | 2492 | #endif /* CONFIG_IEEE80211R */ |
c2a71408 | 2493 | case WLAN_ACTION_WMM: |
3ae0800c | 2494 | hostapd_wmm_action(hapd, mgmt, len); |
912b34f0 | 2495 | return 1; |
5d22a1d5 | 2496 | #ifdef CONFIG_IEEE80211W |
93b76319 | 2497 | case WLAN_ACTION_SA_QUERY: |
912b34f0 | 2498 | return hostapd_sa_query_action(hapd, mgmt, len); |
5d22a1d5 | 2499 | #endif /* CONFIG_IEEE80211W */ |
c79938a5 JM |
2500 | #ifdef CONFIG_WNM |
2501 | case WLAN_ACTION_WNM: | |
dbfb8e82 JM |
2502 | ieee802_11_rx_wnm_action_ap(hapd, mgmt, len); |
2503 | return 1; | |
c79938a5 | 2504 | #endif /* CONFIG_WNM */ |
037378ff AN |
2505 | #ifdef CONFIG_FST |
2506 | case WLAN_ACTION_FST: | |
2507 | if (hapd->iface->fst) | |
2508 | fst_rx_action(hapd->iface->fst, mgmt, len); | |
94edea89 JM |
2509 | else |
2510 | wpa_printf(MSG_DEBUG, | |
2511 | "FST: Ignore FST Action frame - no FST attached"); | |
037378ff AN |
2512 | return 1; |
2513 | #endif /* CONFIG_FST */ | |
c706d5aa | 2514 | case WLAN_ACTION_PUBLIC: |
5ce00d09 | 2515 | case WLAN_ACTION_PROTECTED_DUAL: |
587d60d2 | 2516 | #ifdef CONFIG_IEEE80211N |
fd66aa63 JM |
2517 | if (len >= IEEE80211_HDRLEN + 2 && |
2518 | mgmt->u.action.u.public_action.action == | |
587d60d2 PX |
2519 | WLAN_PA_20_40_BSS_COEX) { |
2520 | wpa_printf(MSG_DEBUG, | |
2521 | "HT20/40 coex mgmt frame received from STA " | |
2522 | MACSTR, MAC2STR(mgmt->sa)); | |
2523 | hostapd_2040_coex_action(hapd, mgmt, len); | |
2524 | } | |
2525 | #endif /* CONFIG_IEEE80211N */ | |
c706d5aa JM |
2526 | if (hapd->public_action_cb) { |
2527 | hapd->public_action_cb(hapd->public_action_cb_ctx, | |
2528 | (u8 *) mgmt, len, | |
2529 | hapd->iface->freq); | |
c706d5aa | 2530 | } |
2d9ffe1e | 2531 | if (hapd->public_action_cb2) { |
8dabf4bb | 2532 | hapd->public_action_cb2(hapd->public_action_cb2_ctx, |
2d9ffe1e JM |
2533 | (u8 *) mgmt, len, |
2534 | hapd->iface->freq); | |
2535 | } | |
2536 | if (hapd->public_action_cb || hapd->public_action_cb2) | |
912b34f0 | 2537 | return 1; |
c706d5aa | 2538 | break; |
e44f8bf2 JM |
2539 | case WLAN_ACTION_VENDOR_SPECIFIC: |
2540 | if (hapd->vendor_action_cb) { | |
2541 | if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx, | |
2542 | (u8 *) mgmt, len, | |
2543 | hapd->iface->freq) == 0) | |
912b34f0 | 2544 | return 1; |
e44f8bf2 JM |
2545 | } |
2546 | break; | |
2572df34 DS |
2547 | case WLAN_ACTION_RADIO_MEASUREMENT: |
2548 | hostapd_handle_radio_measurement(hapd, (const u8 *) mgmt, len); | |
2549 | return 1; | |
6fc6879b JM |
2550 | } |
2551 | ||
2552 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2553 | HOSTAPD_LEVEL_DEBUG, | |
2554 | "handle_action - unknown action category %d or invalid " | |
2555 | "frame", | |
2556 | mgmt->u.action.category); | |
2557 | if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) && | |
2558 | !(mgmt->sa[0] & 0x01)) { | |
b57e086c JM |
2559 | struct ieee80211_mgmt *resp; |
2560 | ||
6fc6879b JM |
2561 | /* |
2562 | * IEEE 802.11-REVma/D9.0 - 7.3.1.11 | |
2563 | * Return the Action frame to the source without change | |
2564 | * except that MSB of the Category set to 1. | |
2565 | */ | |
2566 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " | |
2567 | "frame back to sender"); | |
b57e086c JM |
2568 | resp = os_malloc(len); |
2569 | if (resp == NULL) | |
912b34f0 | 2570 | return 0; |
b57e086c JM |
2571 | os_memcpy(resp, mgmt, len); |
2572 | os_memcpy(resp->da, resp->sa, ETH_ALEN); | |
2573 | os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); | |
2574 | os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); | |
2575 | resp->u.action.category |= 0x80; | |
2576 | ||
41fe8b42 JM |
2577 | if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) { |
2578 | wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send " | |
2579 | "Action frame"); | |
2580 | } | |
b57e086c | 2581 | os_free(resp); |
6fc6879b | 2582 | } |
912b34f0 JM |
2583 | |
2584 | return 1; | |
6fc6879b JM |
2585 | } |
2586 | ||
2587 | ||
2588 | /** | |
2589 | * ieee802_11_mgmt - process incoming IEEE 802.11 management frames | |
2590 | * @hapd: hostapd BSS data structure (the BSS to which the management frame was | |
2591 | * sent to) | |
2592 | * @buf: management frame data (starting from IEEE 802.11 header) | |
2593 | * @len: length of frame data in octets | |
a17df5fb | 2594 | * @fi: meta data about received frame (signal level, etc.) |
6fc6879b JM |
2595 | * |
2596 | * Process all incoming IEEE 802.11 management frames. This will be called for | |
2597 | * each frame received from the kernel driver through wlan#ap interface. In | |
2598 | * addition, it can be called to re-inserted pending frames (e.g., when using | |
2599 | * external RADIUS server as an MAC ACL). | |
2600 | */ | |
912b34f0 JM |
2601 | int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, |
2602 | struct hostapd_frame_info *fi) | |
6fc6879b | 2603 | { |
f8b1f695 | 2604 | struct ieee80211_mgmt *mgmt; |
6fc6879b | 2605 | int broadcast; |
f8b1f695 | 2606 | u16 fc, stype; |
912b34f0 | 2607 | int ret = 0; |
f8b1f695 | 2608 | |
cbcf92b4 | 2609 | if (len < 24) |
912b34f0 | 2610 | return 0; |
cbcf92b4 | 2611 | |
f8b1f695 JM |
2612 | mgmt = (struct ieee80211_mgmt *) buf; |
2613 | fc = le_to_host16(mgmt->frame_control); | |
2614 | stype = WLAN_FC_GET_STYPE(fc); | |
6fc6879b JM |
2615 | |
2616 | if (stype == WLAN_FC_STYPE_BEACON) { | |
2617 | handle_beacon(hapd, mgmt, len, fi); | |
912b34f0 | 2618 | return 1; |
6fc6879b JM |
2619 | } |
2620 | ||
6fc6879b JM |
2621 | broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff && |
2622 | mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff && | |
2623 | mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff; | |
2624 | ||
2625 | if (!broadcast && | |
3eeee931 AN |
2626 | #ifdef CONFIG_P2P |
2627 | /* Invitation responses can be sent with the peer MAC as BSSID */ | |
2628 | !((hapd->conf->p2p & P2P_GROUP_OWNER) && | |
2629 | stype == WLAN_FC_STYPE_ACTION) && | |
2630 | #endif /* CONFIG_P2P */ | |
f3e9899e BC |
2631 | #ifdef CONFIG_MESH |
2632 | !(hapd->conf->mesh & MESH_ENABLED) && | |
2633 | #endif /* CONFIG_MESH */ | |
fe2c5241 | 2634 | os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { |
61323e70 JM |
2635 | wpa_printf(MSG_INFO, "MGMT: BSSID=" MACSTR " not our address", |
2636 | MAC2STR(mgmt->bssid)); | |
912b34f0 | 2637 | return 0; |
6fc6879b JM |
2638 | } |
2639 | ||
2640 | ||
2641 | if (stype == WLAN_FC_STYPE_PROBE_REQ) { | |
baf513d6 | 2642 | handle_probe_req(hapd, mgmt, len, fi->ssi_signal); |
912b34f0 | 2643 | return 1; |
6fc6879b JM |
2644 | } |
2645 | ||
2646 | if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { | |
2647 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2648 | HOSTAPD_LEVEL_DEBUG, | |
2649 | "MGMT: DA=" MACSTR " not our address", | |
2650 | MAC2STR(mgmt->da)); | |
912b34f0 | 2651 | return 0; |
6fc6879b JM |
2652 | } |
2653 | ||
b308a304 JM |
2654 | if (hapd->iconf->track_sta_max_num) |
2655 | sta_track_add(hapd->iface, mgmt->sa); | |
2656 | ||
6fc6879b JM |
2657 | switch (stype) { |
2658 | case WLAN_FC_STYPE_AUTH: | |
2659 | wpa_printf(MSG_DEBUG, "mgmt::auth"); | |
2660 | handle_auth(hapd, mgmt, len); | |
912b34f0 | 2661 | ret = 1; |
6fc6879b JM |
2662 | break; |
2663 | case WLAN_FC_STYPE_ASSOC_REQ: | |
2664 | wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); | |
2665 | handle_assoc(hapd, mgmt, len, 0); | |
912b34f0 | 2666 | ret = 1; |
6fc6879b | 2667 | break; |
6fc6879b JM |
2668 | case WLAN_FC_STYPE_REASSOC_REQ: |
2669 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); | |
2670 | handle_assoc(hapd, mgmt, len, 1); | |
912b34f0 | 2671 | ret = 1; |
6fc6879b JM |
2672 | break; |
2673 | case WLAN_FC_STYPE_DISASSOC: | |
2674 | wpa_printf(MSG_DEBUG, "mgmt::disassoc"); | |
2675 | handle_disassoc(hapd, mgmt, len); | |
912b34f0 | 2676 | ret = 1; |
6fc6879b JM |
2677 | break; |
2678 | case WLAN_FC_STYPE_DEAUTH: | |
3ec1e902 | 2679 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth"); |
6fc6879b | 2680 | handle_deauth(hapd, mgmt, len); |
912b34f0 | 2681 | ret = 1; |
6fc6879b JM |
2682 | break; |
2683 | case WLAN_FC_STYPE_ACTION: | |
2684 | wpa_printf(MSG_DEBUG, "mgmt::action"); | |
912b34f0 | 2685 | ret = handle_action(hapd, mgmt, len); |
6fc6879b JM |
2686 | break; |
2687 | default: | |
2688 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
2689 | HOSTAPD_LEVEL_DEBUG, | |
2690 | "unknown mgmt frame subtype %d", stype); | |
2691 | break; | |
2692 | } | |
912b34f0 JM |
2693 | |
2694 | return ret; | |
6fc6879b JM |
2695 | } |
2696 | ||
2697 | ||
2698 | static void handle_auth_cb(struct hostapd_data *hapd, | |
f8b1f695 | 2699 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
2700 | size_t len, int ok) |
2701 | { | |
2702 | u16 auth_alg, auth_transaction, status_code; | |
2703 | struct sta_info *sta; | |
2704 | ||
bb598c3b AB |
2705 | sta = ap_get_sta(hapd, mgmt->da); |
2706 | if (!sta) { | |
2707 | wpa_printf(MSG_INFO, "handle_auth_cb: STA " MACSTR " not found", | |
2708 | MAC2STR(mgmt->da)); | |
2709 | return; | |
2710 | } | |
2711 | ||
2712 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
2713 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
2714 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
2715 | ||
6fc6879b JM |
2716 | if (!ok) { |
2717 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
2718 | HOSTAPD_LEVEL_NOTICE, | |
2719 | "did not acknowledge authentication response"); | |
bb598c3b | 2720 | goto fail; |
6fc6879b JM |
2721 | } |
2722 | ||
2723 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
2724 | wpa_printf(MSG_INFO, "handle_auth_cb - too short payload (len=%lu)", |
2725 | (unsigned long) len); | |
bb598c3b | 2726 | goto fail; |
6fc6879b JM |
2727 | } |
2728 | ||
2729 | if (status_code == WLAN_STATUS_SUCCESS && | |
2730 | ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || | |
2731 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { | |
2732 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2733 | HOSTAPD_LEVEL_INFO, "authenticated"); | |
2734 | sta->flags |= WLAN_STA_AUTH; | |
bb598c3b AB |
2735 | if (sta->added_unassoc) |
2736 | hostapd_set_sta_flags(hapd, sta); | |
2737 | return; | |
2738 | } | |
2739 | ||
2740 | fail: | |
2741 | if (status_code != WLAN_STATUS_SUCCESS && sta->added_unassoc) { | |
2742 | hostapd_drv_sta_remove(hapd, sta->addr); | |
2743 | sta->added_unassoc = 0; | |
6fc6879b JM |
2744 | } |
2745 | } | |
2746 | ||
2747 | ||
69dd2967 SM |
2748 | static void hostapd_set_wds_encryption(struct hostapd_data *hapd, |
2749 | struct sta_info *sta, | |
2750 | char *ifname_wds) | |
2751 | { | |
2752 | int i; | |
f41ded6f | 2753 | struct hostapd_ssid *ssid = &hapd->conf->ssid; |
69dd2967 SM |
2754 | |
2755 | if (hapd->conf->ieee802_1x || hapd->conf->wpa) | |
2756 | return; | |
2757 | ||
2758 | for (i = 0; i < 4; i++) { | |
2759 | if (ssid->wep.key[i] && | |
2760 | hostapd_drv_set_key(ifname_wds, hapd, WPA_ALG_WEP, NULL, i, | |
2761 | i == ssid->wep.idx, NULL, 0, | |
2762 | ssid->wep.key[i], ssid->wep.len[i])) { | |
2763 | wpa_printf(MSG_WARNING, | |
2764 | "Could not set WEP keys for WDS interface; %s", | |
2765 | ifname_wds); | |
2766 | break; | |
2767 | } | |
2768 | } | |
2769 | } | |
2770 | ||
2771 | ||
6fc6879b | 2772 | static void handle_assoc_cb(struct hostapd_data *hapd, |
f8b1f695 | 2773 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
2774 | size_t len, int reassoc, int ok) |
2775 | { | |
2776 | u16 status; | |
2777 | struct sta_info *sta; | |
2778 | int new_assoc = 1; | |
2779 | ||
6fc6879b JM |
2780 | sta = ap_get_sta(hapd, mgmt->da); |
2781 | if (!sta) { | |
61323e70 JM |
2782 | wpa_printf(MSG_INFO, "handle_assoc_cb: STA " MACSTR " not found", |
2783 | MAC2STR(mgmt->da)); | |
6fc6879b JM |
2784 | return; |
2785 | } | |
2786 | ||
bb598c3b AB |
2787 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : |
2788 | sizeof(mgmt->u.assoc_resp))) { | |
2789 | wpa_printf(MSG_INFO, | |
2790 | "handle_assoc_cb(reassoc=%d) - too short payload (len=%lu)", | |
2791 | reassoc, (unsigned long) len); | |
3f81ac07 AO |
2792 | hostapd_drv_sta_remove(hapd, sta->addr); |
2793 | return; | |
bb598c3b AB |
2794 | } |
2795 | ||
3f81ac07 AO |
2796 | if (reassoc) |
2797 | status = le_to_host16(mgmt->u.reassoc_resp.status_code); | |
2798 | else | |
2799 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
2800 | ||
22b42372 FF |
2801 | if (!ok) { |
2802 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
2803 | HOSTAPD_LEVEL_DEBUG, | |
2804 | "did not acknowledge association response"); | |
2805 | sta->flags &= ~WLAN_STA_ASSOC_REQ_OK; | |
3f81ac07 AO |
2806 | /* The STA is added only in case of SUCCESS */ |
2807 | if (status == WLAN_STATUS_SUCCESS) | |
2808 | hostapd_drv_sta_remove(hapd, sta->addr); | |
22b42372 | 2809 | |
3f81ac07 AO |
2810 | return; |
2811 | } | |
22b42372 | 2812 | |
6fc6879b | 2813 | if (status != WLAN_STATUS_SUCCESS) |
5bdac4ab | 2814 | return; |
6fc6879b JM |
2815 | |
2816 | /* Stop previous accounting session, if one is started, and allocate | |
2817 | * new session id for the new session. */ | |
2818 | accounting_sta_stop(hapd, sta); | |
6fc6879b JM |
2819 | |
2820 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2821 | HOSTAPD_LEVEL_INFO, | |
2fc98d02 JM |
2822 | "associated (aid %d)", |
2823 | sta->aid); | |
6fc6879b JM |
2824 | |
2825 | if (sta->flags & WLAN_STA_ASSOC) | |
2826 | new_assoc = 0; | |
2827 | sta->flags |= WLAN_STA_ASSOC; | |
3578e665 | 2828 | sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE; |
a14896e8 | 2829 | if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen) || |
ef580012 JM |
2830 | sta->auth_alg == WLAN_AUTH_FT) { |
2831 | /* | |
2832 | * Open, static WEP, or FT protocol; no separate authorization | |
2833 | * step. | |
2834 | */ | |
6905dcb1 | 2835 | ap_sta_set_authorized(hapd, sta, 1); |
515cf93f | 2836 | } |
6fc6879b JM |
2837 | |
2838 | if (reassoc) | |
2839 | mlme_reassociate_indication(hapd, sta); | |
2840 | else | |
2841 | mlme_associate_indication(hapd, sta); | |
2842 | ||
5d22a1d5 | 2843 | #ifdef CONFIG_IEEE80211W |
93b76319 | 2844 | sta->sa_query_timed_out = 0; |
5d22a1d5 JM |
2845 | #endif /* CONFIG_IEEE80211W */ |
2846 | ||
69dd2967 SM |
2847 | if (sta->flags & WLAN_STA_WDS) { |
2848 | int ret; | |
2849 | char ifname_wds[IFNAMSIZ + 1]; | |
2850 | ||
2851 | ret = hostapd_set_wds_sta(hapd, ifname_wds, sta->addr, | |
2852 | sta->aid, 1); | |
2853 | if (!ret) | |
2854 | hostapd_set_wds_encryption(hapd, sta, ifname_wds); | |
2855 | } | |
7826ceae | 2856 | |
6fc6879b JM |
2857 | if (sta->eapol_sm == NULL) { |
2858 | /* | |
2859 | * This STA does not use RADIUS server for EAP authentication, | |
2860 | * so bind it to the selected VLAN interface now, since the | |
2861 | * interface selection is not going to change anymore. | |
2862 | */ | |
c8e6beab | 2863 | if (ap_sta_bind_vlan(hapd, sta) < 0) |
5bdac4ab | 2864 | return; |
6fc6879b JM |
2865 | } else if (sta->vlan_id) { |
2866 | /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ | |
c8e6beab | 2867 | if (ap_sta_bind_vlan(hapd, sta) < 0) |
5bdac4ab | 2868 | return; |
6fc6879b | 2869 | } |
eddd8010 | 2870 | |
0e8a96a9 | 2871 | hostapd_set_sta_flags(hapd, sta); |
6fc6879b JM |
2872 | |
2873 | if (sta->auth_alg == WLAN_AUTH_FT) | |
2874 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
2875 | else | |
2876 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
d24df7c3 | 2877 | hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); |
6fc6879b | 2878 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); |
f2accfe7 EP |
2879 | |
2880 | if (sta->pending_eapol_rx) { | |
2881 | struct os_reltime now, age; | |
2882 | ||
2883 | os_get_reltime(&now); | |
2884 | os_reltime_sub(&now, &sta->pending_eapol_rx->rx_time, &age); | |
2885 | if (age.sec == 0 && age.usec < 200000) { | |
2886 | wpa_printf(MSG_DEBUG, | |
2887 | "Process pending EAPOL frame that was received from " MACSTR " just before association notification", | |
2888 | MAC2STR(sta->addr)); | |
2889 | ieee802_1x_receive( | |
2890 | hapd, mgmt->da, | |
2891 | wpabuf_head(sta->pending_eapol_rx->buf), | |
2892 | wpabuf_len(sta->pending_eapol_rx->buf)); | |
2893 | } | |
2894 | wpabuf_free(sta->pending_eapol_rx->buf); | |
2895 | os_free(sta->pending_eapol_rx); | |
2896 | sta->pending_eapol_rx = NULL; | |
2897 | } | |
6fc6879b JM |
2898 | } |
2899 | ||
2900 | ||
4dc03726 JM |
2901 | static void handle_deauth_cb(struct hostapd_data *hapd, |
2902 | const struct ieee80211_mgmt *mgmt, | |
2903 | size_t len, int ok) | |
2904 | { | |
2905 | struct sta_info *sta; | |
2906 | if (mgmt->da[0] & 0x01) | |
2907 | return; | |
2908 | sta = ap_get_sta(hapd, mgmt->da); | |
2909 | if (!sta) { | |
2910 | wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR | |
2911 | " not found", MAC2STR(mgmt->da)); | |
2912 | return; | |
2913 | } | |
2914 | if (ok) | |
2915 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth", | |
2916 | MAC2STR(sta->addr)); | |
2917 | else | |
2918 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
2919 | "deauth", MAC2STR(sta->addr)); | |
2920 | ||
2921 | ap_sta_deauth_cb(hapd, sta); | |
2922 | } | |
2923 | ||
2924 | ||
2925 | static void handle_disassoc_cb(struct hostapd_data *hapd, | |
2926 | const struct ieee80211_mgmt *mgmt, | |
2927 | size_t len, int ok) | |
2928 | { | |
2929 | struct sta_info *sta; | |
2930 | if (mgmt->da[0] & 0x01) | |
2931 | return; | |
2932 | sta = ap_get_sta(hapd, mgmt->da); | |
2933 | if (!sta) { | |
2934 | wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR | |
2935 | " not found", MAC2STR(mgmt->da)); | |
2936 | return; | |
2937 | } | |
2938 | if (ok) | |
2939 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc", | |
2940 | MAC2STR(sta->addr)); | |
2941 | else | |
2942 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
2943 | "disassoc", MAC2STR(sta->addr)); | |
2944 | ||
2945 | ap_sta_disassoc_cb(hapd, sta); | |
2946 | } | |
2947 | ||
2948 | ||
1c6e69cc JM |
2949 | /** |
2950 | * ieee802_11_mgmt_cb - Process management frame TX status callback | |
2951 | * @hapd: hostapd BSS data structure (the BSS from which the management frame | |
2952 | * was sent from) | |
2953 | * @buf: management frame data (starting from IEEE 802.11 header) | |
2954 | * @len: length of frame data in octets | |
2955 | * @stype: management frame subtype from frame control field | |
2956 | * @ok: Whether the frame was ACK'ed | |
2957 | */ | |
f8b1f695 | 2958 | void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
2959 | u16 stype, int ok) |
2960 | { | |
f8b1f695 JM |
2961 | const struct ieee80211_mgmt *mgmt; |
2962 | mgmt = (const struct ieee80211_mgmt *) buf; | |
6fc6879b | 2963 | |
93827f45 JM |
2964 | #ifdef CONFIG_TESTING_OPTIONS |
2965 | if (hapd->ext_mgmt_frame_handling) { | |
2966 | wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-TX-STATUS stype=%u ok=%d", | |
2967 | stype, ok); | |
2968 | return; | |
2969 | } | |
2970 | #endif /* CONFIG_TESTING_OPTIONS */ | |
2971 | ||
6fc6879b JM |
2972 | switch (stype) { |
2973 | case WLAN_FC_STYPE_AUTH: | |
2974 | wpa_printf(MSG_DEBUG, "mgmt::auth cb"); | |
2975 | handle_auth_cb(hapd, mgmt, len, ok); | |
2976 | break; | |
2977 | case WLAN_FC_STYPE_ASSOC_RESP: | |
2978 | wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); | |
2979 | handle_assoc_cb(hapd, mgmt, len, 0, ok); | |
2980 | break; | |
2981 | case WLAN_FC_STYPE_REASSOC_RESP: | |
2982 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); | |
2983 | handle_assoc_cb(hapd, mgmt, len, 1, ok); | |
2984 | break; | |
2985 | case WLAN_FC_STYPE_PROBE_RESP: | |
077dcfb8 | 2986 | wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb ok=%d", ok); |
6fc6879b JM |
2987 | break; |
2988 | case WLAN_FC_STYPE_DEAUTH: | |
4dc03726 JM |
2989 | wpa_printf(MSG_DEBUG, "mgmt::deauth cb"); |
2990 | handle_deauth_cb(hapd, mgmt, len, ok); | |
2991 | break; | |
2992 | case WLAN_FC_STYPE_DISASSOC: | |
2993 | wpa_printf(MSG_DEBUG, "mgmt::disassoc cb"); | |
2994 | handle_disassoc_cb(hapd, mgmt, len, ok); | |
6fc6879b | 2995 | break; |
5d22a1d5 | 2996 | case WLAN_FC_STYPE_ACTION: |
077dcfb8 | 2997 | wpa_printf(MSG_DEBUG, "mgmt::action cb ok=%d", ok); |
5d22a1d5 | 2998 | break; |
6fc6879b | 2999 | default: |
61323e70 | 3000 | wpa_printf(MSG_INFO, "unknown mgmt cb frame subtype %d", stype); |
6fc6879b JM |
3001 | break; |
3002 | } | |
3003 | } | |
3004 | ||
3005 | ||
6fc6879b JM |
3006 | int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) |
3007 | { | |
3008 | /* TODO */ | |
3009 | return 0; | |
3010 | } | |
3011 | ||
3012 | ||
3013 | int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, | |
3014 | char *buf, size_t buflen) | |
3015 | { | |
3016 | /* TODO */ | |
3017 | return 0; | |
3018 | } | |
3019 | ||
f8b1f695 JM |
3020 | |
3021 | void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, | |
3022 | const u8 *buf, size_t len, int ack) | |
3023 | { | |
3024 | struct sta_info *sta; | |
3025 | struct hostapd_iface *iface = hapd->iface; | |
3026 | ||
3027 | sta = ap_get_sta(hapd, addr); | |
3028 | if (sta == NULL && iface->num_bss > 1) { | |
3029 | size_t j; | |
3030 | for (j = 0; j < iface->num_bss; j++) { | |
3031 | hapd = iface->bss[j]; | |
3032 | sta = ap_get_sta(hapd, addr); | |
3033 | if (sta) | |
3034 | break; | |
3035 | } | |
3036 | } | |
0c01d65d | 3037 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) |
f8b1f695 JM |
3038 | return; |
3039 | if (sta->flags & WLAN_STA_PENDING_POLL) { | |
3040 | wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " | |
3041 | "activity poll", MAC2STR(sta->addr), | |
3042 | ack ? "ACKed" : "did not ACK"); | |
3043 | if (ack) | |
3044 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
3045 | } | |
3046 | ||
3047 | ieee802_1x_tx_status(hapd, sta, buf, len, ack); | |
3048 | } | |
3049 | ||
3050 | ||
dd840f79 JB |
3051 | void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst, |
3052 | const u8 *data, size_t len, int ack) | |
3053 | { | |
3054 | struct sta_info *sta; | |
3055 | struct hostapd_iface *iface = hapd->iface; | |
3056 | ||
3057 | sta = ap_get_sta(hapd, dst); | |
3058 | if (sta == NULL && iface->num_bss > 1) { | |
3059 | size_t j; | |
3060 | for (j = 0; j < iface->num_bss; j++) { | |
3061 | hapd = iface->bss[j]; | |
3062 | sta = ap_get_sta(hapd, dst); | |
3063 | if (sta) | |
3064 | break; | |
3065 | } | |
3066 | } | |
d9a38716 JM |
3067 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { |
3068 | wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA " | |
3069 | MACSTR " that is not currently associated", | |
3070 | MAC2STR(dst)); | |
dd840f79 | 3071 | return; |
d9a38716 | 3072 | } |
dd840f79 JB |
3073 | |
3074 | ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack); | |
3075 | } | |
3076 | ||
3077 | ||
bcf24348 JB |
3078 | void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr) |
3079 | { | |
3080 | struct sta_info *sta; | |
3081 | struct hostapd_iface *iface = hapd->iface; | |
3082 | ||
3083 | sta = ap_get_sta(hapd, addr); | |
3084 | if (sta == NULL && iface->num_bss > 1) { | |
3085 | size_t j; | |
3086 | for (j = 0; j < iface->num_bss; j++) { | |
3087 | hapd = iface->bss[j]; | |
3088 | sta = ap_get_sta(hapd, addr); | |
3089 | if (sta) | |
3090 | break; | |
3091 | } | |
3092 | } | |
3093 | if (sta == NULL) | |
3094 | return; | |
1854eeca JM |
3095 | wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POLL_OK MACSTR, |
3096 | MAC2STR(sta->addr)); | |
bcf24348 JB |
3097 | if (!(sta->flags & WLAN_STA_PENDING_POLL)) |
3098 | return; | |
3099 | ||
3100 | wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending " | |
3101 | "activity poll", MAC2STR(sta->addr)); | |
3102 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
3103 | } | |
3104 | ||
3105 | ||
fbbfcbac FF |
3106 | void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, |
3107 | int wds) | |
f8b1f695 JM |
3108 | { |
3109 | struct sta_info *sta; | |
3110 | ||
3111 | sta = ap_get_sta(hapd, src); | |
fbbfcbac | 3112 | if (sta && (sta->flags & WLAN_STA_ASSOC)) { |
99743811 FF |
3113 | if (!hapd->conf->wds_sta) |
3114 | return; | |
3115 | ||
fbbfcbac | 3116 | if (wds && !(sta->flags & WLAN_STA_WDS)) { |
69dd2967 SM |
3117 | int ret; |
3118 | char ifname_wds[IFNAMSIZ + 1]; | |
3119 | ||
fbbfcbac FF |
3120 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " |
3121 | "STA " MACSTR " (aid %u)", | |
3122 | MAC2STR(sta->addr), sta->aid); | |
3123 | sta->flags |= WLAN_STA_WDS; | |
69dd2967 SM |
3124 | ret = hostapd_set_wds_sta(hapd, ifname_wds, |
3125 | sta->addr, sta->aid, 1); | |
3126 | if (!ret) | |
3127 | hostapd_set_wds_encryption(hapd, sta, | |
3128 | ifname_wds); | |
fbbfcbac | 3129 | } |
f8b1f695 | 3130 | return; |
fbbfcbac | 3131 | } |
f8b1f695 JM |
3132 | |
3133 | wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " | |
3134 | MACSTR, MAC2STR(src)); | |
1df492df JM |
3135 | if (src[0] & 0x01) { |
3136 | /* Broadcast bit set in SA?! Ignore the frame silently. */ | |
3137 | return; | |
3138 | } | |
3139 | ||
b8281964 JM |
3140 | if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) { |
3141 | wpa_printf(MSG_DEBUG, "Association Response to the STA has " | |
3142 | "already been sent, but no TX status yet known - " | |
3143 | "ignore Class 3 frame issue with " MACSTR, | |
3144 | MAC2STR(src)); | |
3145 | return; | |
3146 | } | |
3147 | ||
f8b1f695 | 3148 | if (sta && (sta->flags & WLAN_STA_AUTH)) |
51e2a27a | 3149 | hostapd_drv_sta_disassoc( |
f8b1f695 JM |
3150 | hapd, src, |
3151 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
3152 | else | |
51e2a27a | 3153 | hostapd_drv_sta_deauth( |
f8b1f695 JM |
3154 | hapd, src, |
3155 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
3156 | } | |
3157 | ||
3158 | ||
6fc6879b | 3159 | #endif /* CONFIG_NATIVE_WINDOWS */ |