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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * hostapd / IEEE 802.11 Management | |
d9a38716 | 3 | * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> |
6fc6879b | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | */ |
8 | ||
1057d78e | 9 | #include "utils/includes.h" |
6fc6879b JM |
10 | |
11 | #ifndef CONFIG_NATIVE_WINDOWS | |
12 | ||
1057d78e JM |
13 | #include "utils/common.h" |
14 | #include "utils/eloop.h" | |
03da66bd | 15 | #include "crypto/crypto.h" |
2ce86d9d | 16 | #include "drivers/driver.h" |
81f4f619 JM |
17 | #include "common/ieee802_11_defs.h" |
18 | #include "common/ieee802_11_common.h" | |
03da66bd | 19 | #include "common/wpa_ctrl.h" |
98efcc41 | 20 | #include "common/sae.h" |
03da66bd JM |
21 | #include "radius/radius.h" |
22 | #include "radius/radius_client.h" | |
e44f8bf2 | 23 | #include "p2p/p2p.h" |
ed7a09f9 | 24 | #include "wps/wps.h" |
6fc6879b | 25 | #include "hostapd.h" |
6fc6879b | 26 | #include "beacon.h" |
6fc6879b JM |
27 | #include "ieee802_11_auth.h" |
28 | #include "sta_info.h" | |
6fc6879b | 29 | #include "ieee802_1x.h" |
6226e38d | 30 | #include "wpa_auth.h" |
1057d78e | 31 | #include "wmm.h" |
6fc6879b JM |
32 | #include "ap_list.h" |
33 | #include "accounting.h" | |
6226e38d JM |
34 | #include "ap_config.h" |
35 | #include "ap_mlme.h" | |
dce044cc | 36 | #include "p2p_hostapd.h" |
cee7d66b | 37 | #include "ap_drv_ops.h" |
c79938a5 | 38 | #include "wnm_ap.h" |
6226e38d | 39 | #include "ieee802_11.h" |
6fc6879b JM |
40 | |
41 | ||
42 | u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
43 | { | |
44 | u8 *pos = eid; | |
45 | int i, num, count; | |
46 | ||
47 | if (hapd->iface->current_rates == NULL) | |
48 | return eid; | |
49 | ||
50 | *pos++ = WLAN_EID_SUPP_RATES; | |
51 | num = hapd->iface->num_rates; | |
29448243 JM |
52 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
53 | num++; | |
202d97d4 JB |
54 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
55 | num++; | |
6fc6879b JM |
56 | if (num > 8) { |
57 | /* rest of the rates are encoded in Extended supported | |
58 | * rates element */ | |
59 | num = 8; | |
60 | } | |
61 | ||
62 | *pos++ = num; | |
63 | count = 0; | |
64 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num; | |
65 | i++) { | |
66 | count++; | |
67 | *pos = hapd->iface->current_rates[i].rate / 5; | |
68 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
69 | *pos |= 0x80; | |
70 | pos++; | |
71 | } | |
72 | ||
202d97d4 JB |
73 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) { |
74 | count++; | |
29448243 | 75 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; |
202d97d4 JB |
76 | } |
77 | ||
78 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) { | |
79 | count++; | |
80 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
81 | } | |
29448243 | 82 | |
6fc6879b JM |
83 | return pos; |
84 | } | |
85 | ||
86 | ||
87 | u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
88 | { | |
89 | u8 *pos = eid; | |
90 | int i, num, count; | |
91 | ||
92 | if (hapd->iface->current_rates == NULL) | |
93 | return eid; | |
94 | ||
95 | num = hapd->iface->num_rates; | |
29448243 JM |
96 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
97 | num++; | |
202d97d4 JB |
98 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
99 | num++; | |
6fc6879b JM |
100 | if (num <= 8) |
101 | return eid; | |
102 | num -= 8; | |
103 | ||
104 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
105 | *pos++ = num; | |
106 | count = 0; | |
107 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; | |
108 | i++) { | |
109 | count++; | |
110 | if (count <= 8) | |
111 | continue; /* already in SuppRates IE */ | |
112 | *pos = hapd->iface->current_rates[i].rate / 5; | |
113 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
114 | *pos |= 0x80; | |
115 | pos++; | |
116 | } | |
117 | ||
202d97d4 JB |
118 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) { |
119 | count++; | |
120 | if (count > 8) | |
121 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; | |
122 | } | |
123 | ||
124 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) { | |
125 | count++; | |
126 | if (count > 8) | |
127 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
128 | } | |
29448243 | 129 | |
6fc6879b JM |
130 | return pos; |
131 | } | |
132 | ||
133 | ||
134 | u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta, | |
135 | int probe) | |
136 | { | |
137 | int capab = WLAN_CAPABILITY_ESS; | |
138 | int privacy; | |
139 | ||
140 | if (hapd->iface->num_sta_no_short_preamble == 0 && | |
141 | hapd->iconf->preamble == SHORT_PREAMBLE) | |
142 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
143 | ||
144 | privacy = hapd->conf->ssid.wep.keys_set; | |
145 | ||
146 | if (hapd->conf->ieee802_1x && | |
147 | (hapd->conf->default_wep_key_len || | |
148 | hapd->conf->individual_wep_key_len)) | |
149 | privacy = 1; | |
150 | ||
151 | if (hapd->conf->wpa) | |
152 | privacy = 1; | |
153 | ||
154 | if (sta) { | |
155 | int policy, def_klen; | |
156 | if (probe && sta->ssid_probe) { | |
157 | policy = sta->ssid_probe->security_policy; | |
158 | def_klen = sta->ssid_probe->wep.default_len; | |
159 | } else { | |
160 | policy = sta->ssid->security_policy; | |
161 | def_klen = sta->ssid->wep.default_len; | |
162 | } | |
163 | privacy = policy != SECURITY_PLAINTEXT; | |
164 | if (policy == SECURITY_IEEE_802_1X && def_klen == 0) | |
165 | privacy = 0; | |
166 | } | |
167 | ||
168 | if (privacy) | |
169 | capab |= WLAN_CAPABILITY_PRIVACY; | |
170 | ||
171 | if (hapd->iface->current_mode && | |
172 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && | |
173 | hapd->iface->num_sta_no_short_slot_time == 0) | |
174 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
175 | ||
6fc6879b JM |
176 | return capab; |
177 | } | |
178 | ||
179 | ||
6fc6879b JM |
180 | void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len) |
181 | { | |
182 | int i; | |
183 | if (len > HOSTAPD_MAX_SSID_LEN) | |
184 | len = HOSTAPD_MAX_SSID_LEN; | |
185 | for (i = 0; i < len; i++) { | |
186 | if (ssid[i] >= 32 && ssid[i] < 127) | |
187 | buf[i] = ssid[i]; | |
188 | else | |
189 | buf[i] = '.'; | |
190 | } | |
191 | buf[len] = '\0'; | |
192 | } | |
193 | ||
194 | ||
6fc6879b | 195 | static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c JM |
196 | u16 auth_transaction, const u8 *challenge, |
197 | int iswep) | |
6fc6879b JM |
198 | { |
199 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
200 | HOSTAPD_LEVEL_DEBUG, | |
201 | "authentication (shared key, transaction %d)", | |
202 | auth_transaction); | |
203 | ||
204 | if (auth_transaction == 1) { | |
205 | if (!sta->challenge) { | |
206 | /* Generate a pseudo-random challenge */ | |
207 | u8 key[8]; | |
0b04889f | 208 | struct os_time now; |
6fc6879b JM |
209 | int r; |
210 | sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); | |
211 | if (sta->challenge == NULL) | |
212 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
213 | ||
0b04889f PE |
214 | os_get_time(&now); |
215 | r = os_random(); | |
216 | os_memcpy(key, &now.sec, 4); | |
6fc6879b | 217 | os_memcpy(key + 4, &r, 4); |
8ef16831 JM |
218 | rc4_skip(key, sizeof(key), 0, |
219 | sta->challenge, WLAN_AUTH_CHALLENGE_LEN); | |
6fc6879b JM |
220 | } |
221 | return 0; | |
222 | } | |
223 | ||
224 | if (auth_transaction != 3) | |
225 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
226 | ||
227 | /* Transaction 3 */ | |
228 | if (!iswep || !sta->challenge || !challenge || | |
229 | os_memcmp(sta->challenge, challenge, WLAN_AUTH_CHALLENGE_LEN)) { | |
230 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
231 | HOSTAPD_LEVEL_INFO, | |
232 | "shared key authentication - invalid " | |
233 | "challenge-response"); | |
234 | return WLAN_STATUS_CHALLENGE_FAIL; | |
235 | } | |
236 | ||
237 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
238 | HOSTAPD_LEVEL_DEBUG, | |
239 | "authentication OK (shared key)"); | |
240 | #ifdef IEEE80211_REQUIRE_AUTH_ACK | |
241 | /* Station will be marked authenticated if it ACKs the | |
242 | * authentication reply. */ | |
243 | #else | |
244 | sta->flags |= WLAN_STA_AUTH; | |
245 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
246 | #endif | |
247 | os_free(sta->challenge); | |
248 | sta->challenge = NULL; | |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
253 | ||
254 | static void send_auth_reply(struct hostapd_data *hapd, | |
255 | const u8 *dst, const u8 *bssid, | |
256 | u16 auth_alg, u16 auth_transaction, u16 resp, | |
257 | const u8 *ies, size_t ies_len) | |
258 | { | |
259 | struct ieee80211_mgmt *reply; | |
260 | u8 *buf; | |
261 | size_t rlen; | |
262 | ||
263 | rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; | |
264 | buf = os_zalloc(rlen); | |
265 | if (buf == NULL) | |
266 | return; | |
267 | ||
268 | reply = (struct ieee80211_mgmt *) buf; | |
269 | reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
270 | WLAN_FC_STYPE_AUTH); | |
6fc6879b JM |
271 | os_memcpy(reply->da, dst, ETH_ALEN); |
272 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
273 | os_memcpy(reply->bssid, bssid, ETH_ALEN); | |
274 | ||
275 | reply->u.auth.auth_alg = host_to_le16(auth_alg); | |
276 | reply->u.auth.auth_transaction = host_to_le16(auth_transaction); | |
277 | reply->u.auth.status_code = host_to_le16(resp); | |
278 | ||
279 | if (ies && ies_len) | |
280 | os_memcpy(reply->u.auth.variable, ies, ies_len); | |
281 | ||
282 | wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR | |
283 | " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)", | |
284 | MAC2STR(dst), auth_alg, auth_transaction, | |
285 | resp, (unsigned long) ies_len); | |
8cfa3527 | 286 | if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0) |
6fc6879b JM |
287 | perror("send_auth_reply: send"); |
288 | ||
289 | os_free(buf); | |
290 | } | |
291 | ||
292 | ||
293 | #ifdef CONFIG_IEEE80211R | |
294 | static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, | |
295 | u16 auth_transaction, u16 status, | |
296 | const u8 *ies, size_t ies_len) | |
297 | { | |
298 | struct hostapd_data *hapd = ctx; | |
299 | struct sta_info *sta; | |
300 | ||
301 | send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, auth_transaction, | |
302 | status, ies, ies_len); | |
303 | ||
304 | if (status != WLAN_STATUS_SUCCESS) | |
305 | return; | |
306 | ||
307 | sta = ap_get_sta(hapd, dst); | |
308 | if (sta == NULL) | |
309 | return; | |
310 | ||
311 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, | |
312 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
313 | sta->flags |= WLAN_STA_AUTH; | |
314 | mlme_authenticate_indication(hapd, sta); | |
315 | } | |
316 | #endif /* CONFIG_IEEE80211R */ | |
317 | ||
318 | ||
c10347f2 | 319 | #ifdef CONFIG_SAE |
21af6d15 JM |
320 | |
321 | static struct wpabuf * auth_build_sae_commit(struct hostapd_data *hapd, | |
322 | struct sta_info *sta) | |
323 | { | |
324 | struct wpabuf *buf; | |
325 | ||
326 | buf = wpabuf_alloc(2); | |
327 | if (buf == NULL) | |
328 | return NULL; | |
329 | ||
330 | wpabuf_put_le16(buf, 19); /* Finite Cyclic Group */ | |
331 | /* TODO: Anti-Clogging Token (if requested) */ | |
332 | /* TODO: Scalar */ | |
333 | /* TODO: Element */ | |
334 | ||
335 | return buf; | |
336 | } | |
337 | ||
338 | ||
339 | static struct wpabuf * auth_build_sae_confirm(struct hostapd_data *hapd, | |
340 | struct sta_info *sta) | |
341 | { | |
342 | struct wpabuf *buf; | |
343 | ||
344 | buf = wpabuf_alloc(2); | |
345 | if (buf == NULL) | |
346 | return NULL; | |
347 | ||
98efcc41 JM |
348 | wpabuf_put_le16(buf, sta->sae->send_confirm); |
349 | sta->sae->send_confirm++; | |
21af6d15 JM |
350 | /* TODO: Confirm */ |
351 | ||
352 | return buf; | |
353 | } | |
354 | ||
355 | ||
356 | static u16 handle_sae_commit(struct hostapd_data *hapd, struct sta_info *sta, | |
357 | const u8 *data, size_t len) | |
358 | { | |
359 | wpa_hexdump(MSG_DEBUG, "SAE commit fields", data, len); | |
360 | ||
361 | /* Check Finite Cyclic Group */ | |
362 | if (len < 2) | |
363 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
364 | if (WPA_GET_LE16(data) != 19) { | |
365 | wpa_printf(MSG_DEBUG, "SAE: Unsupported Finite Cyclic Group %u", | |
366 | WPA_GET_LE16(data)); | |
367 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
368 | } | |
369 | ||
370 | return WLAN_STATUS_SUCCESS; | |
371 | } | |
372 | ||
373 | ||
374 | static u16 handle_sae_confirm(struct hostapd_data *hapd, struct sta_info *sta, | |
375 | const u8 *data, size_t len) | |
376 | { | |
377 | u16 rc; | |
378 | ||
379 | wpa_hexdump(MSG_DEBUG, "SAE confirm fields", data, len); | |
380 | ||
381 | if (len < 2) | |
382 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
383 | rc = WPA_GET_LE16(data); | |
384 | wpa_printf(MSG_DEBUG, "SAE: peer-send-confirm %u", rc); | |
385 | ||
386 | return WLAN_STATUS_SUCCESS; | |
387 | } | |
388 | ||
389 | ||
c10347f2 JM |
390 | static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta, |
391 | const struct ieee80211_mgmt *mgmt, size_t len, | |
392 | u8 auth_transaction) | |
393 | { | |
394 | u16 resp = WLAN_STATUS_SUCCESS; | |
750efe6e | 395 | struct wpabuf *data = NULL; |
c10347f2 | 396 | |
98efcc41 JM |
397 | if (!sta->sae) { |
398 | sta->sae = os_zalloc(sizeof(*sta->sae)); | |
399 | if (sta->sae == NULL) | |
400 | return; | |
401 | } | |
402 | ||
c10347f2 JM |
403 | if (auth_transaction == 1) { |
404 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
405 | HOSTAPD_LEVEL_DEBUG, | |
406 | "start SAE authentication (RX commit)"); | |
21af6d15 JM |
407 | resp = handle_sae_commit(hapd, sta, mgmt->u.auth.variable, |
408 | ((u8 *) mgmt) + len - | |
409 | mgmt->u.auth.variable); | |
750efe6e | 410 | if (resp == WLAN_STATUS_SUCCESS) { |
98efcc41 | 411 | sta->sae->state = SAE_COMMIT; |
750efe6e JM |
412 | data = auth_build_sae_commit(hapd, sta); |
413 | if (data == NULL) | |
414 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
415 | } | |
c10347f2 | 416 | } else if (auth_transaction == 2) { |
98efcc41 | 417 | if (sta->sae->state != SAE_COMMIT) { |
c10347f2 JM |
418 | hostapd_logger(hapd, sta->addr, |
419 | HOSTAPD_MODULE_IEEE80211, | |
420 | HOSTAPD_LEVEL_DEBUG, | |
421 | "SAE confirm before commit"); | |
422 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
423 | } | |
424 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
425 | HOSTAPD_LEVEL_DEBUG, | |
426 | "SAE authentication (RX confirm)"); | |
21af6d15 JM |
427 | resp = handle_sae_confirm(hapd, sta, mgmt->u.auth.variable, |
428 | ((u8 *) mgmt) + len - | |
429 | mgmt->u.auth.variable); | |
430 | if (resp == WLAN_STATUS_SUCCESS) { | |
431 | sta->flags |= WLAN_STA_AUTH; | |
432 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
433 | sta->auth_alg = WLAN_AUTH_SAE; | |
434 | mlme_authenticate_indication(hapd, sta); | |
750efe6e JM |
435 | |
436 | data = auth_build_sae_confirm(hapd, sta); | |
437 | if (data == NULL) | |
438 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
21af6d15 | 439 | } |
c10347f2 JM |
440 | } else { |
441 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
442 | HOSTAPD_LEVEL_DEBUG, | |
443 | "unexpected SAE authentication transaction %u", | |
444 | auth_transaction); | |
445 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
446 | } | |
447 | ||
448 | sta->auth_alg = WLAN_AUTH_SAE; | |
449 | ||
450 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
21af6d15 JM |
451 | auth_transaction, resp, |
452 | data ? wpabuf_head(data) : (u8 *) "", | |
453 | data ? wpabuf_len(data) : 0); | |
454 | wpabuf_free(data); | |
c10347f2 JM |
455 | } |
456 | #endif /* CONFIG_SAE */ | |
457 | ||
458 | ||
b57e086c JM |
459 | static void handle_auth(struct hostapd_data *hapd, |
460 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b JM |
461 | { |
462 | u16 auth_alg, auth_transaction, status_code; | |
463 | u16 resp = WLAN_STATUS_SUCCESS; | |
464 | struct sta_info *sta = NULL; | |
465 | int res; | |
466 | u16 fc; | |
b57e086c | 467 | const u8 *challenge = NULL; |
6fc6879b JM |
468 | u32 session_timeout, acct_interim_interval; |
469 | int vlan_id = 0; | |
2ad3e6c8 | 470 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
6fc6879b JM |
471 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; |
472 | size_t resp_ies_len = 0; | |
2092597f MB |
473 | char *identity = NULL; |
474 | char *radius_cui = NULL; | |
6fc6879b JM |
475 | |
476 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
477 | printf("handle_auth - too short payload (len=%lu)\n", | |
478 | (unsigned long) len); | |
479 | return; | |
480 | } | |
481 | ||
482 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
483 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
484 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
485 | fc = le_to_host16(mgmt->frame_control); | |
486 | ||
487 | if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + | |
488 | 2 + WLAN_AUTH_CHALLENGE_LEN && | |
489 | mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && | |
490 | mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) | |
491 | challenge = &mgmt->u.auth.variable[2]; | |
492 | ||
493 | wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " | |
494 | "auth_transaction=%d status_code=%d wep=%d%s", | |
495 | MAC2STR(mgmt->sa), auth_alg, auth_transaction, | |
496 | status_code, !!(fc & WLAN_FC_ISWEP), | |
497 | challenge ? " challenge" : ""); | |
498 | ||
6fc6879b JM |
499 | if (hapd->tkip_countermeasures) { |
500 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
501 | goto fail; | |
502 | } | |
503 | ||
504 | if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && | |
505 | auth_alg == WLAN_AUTH_OPEN) || | |
506 | #ifdef CONFIG_IEEE80211R | |
0bf927a0 | 507 | (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && |
6fc6879b JM |
508 | auth_alg == WLAN_AUTH_FT) || |
509 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
510 | #ifdef CONFIG_SAE |
511 | (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && | |
512 | auth_alg == WLAN_AUTH_SAE) || | |
513 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
514 | ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && |
515 | auth_alg == WLAN_AUTH_SHARED_KEY))) { | |
516 | printf("Unsupported authentication algorithm (%d)\n", | |
517 | auth_alg); | |
518 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
519 | goto fail; | |
520 | } | |
521 | ||
c10347f2 | 522 | if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE || |
6fc6879b JM |
523 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { |
524 | printf("Unknown authentication transaction number (%d)\n", | |
525 | auth_transaction); | |
526 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
527 | goto fail; | |
528 | } | |
529 | ||
530 | if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { | |
531 | printf("Station " MACSTR " not allowed to authenticate.\n", | |
532 | MAC2STR(mgmt->sa)); | |
533 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
534 | goto fail; | |
535 | } | |
536 | ||
537 | res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len, | |
538 | &session_timeout, | |
05ab9712 | 539 | &acct_interim_interval, &vlan_id, |
2ad3e6c8 | 540 | &psk, &identity, &radius_cui); |
05ab9712 | 541 | |
6fc6879b JM |
542 | if (res == HOSTAPD_ACL_REJECT) { |
543 | printf("Station " MACSTR " not allowed to authenticate.\n", | |
544 | MAC2STR(mgmt->sa)); | |
545 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
546 | goto fail; | |
547 | } | |
548 | if (res == HOSTAPD_ACL_PENDING) { | |
549 | wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR | |
550 | " waiting for an external authentication", | |
551 | MAC2STR(mgmt->sa)); | |
552 | /* Authentication code will re-send the authentication frame | |
553 | * after it has received (and cached) information from the | |
554 | * external source. */ | |
555 | return; | |
556 | } | |
557 | ||
558 | sta = ap_sta_add(hapd, mgmt->sa); | |
559 | if (!sta) { | |
560 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
561 | goto fail; | |
562 | } | |
563 | ||
564 | if (vlan_id > 0) { | |
565 | if (hostapd_get_vlan_id_ifname(hapd->conf->vlan, | |
1066c1ee | 566 | vlan_id) == NULL) { |
6fc6879b JM |
567 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, |
568 | HOSTAPD_LEVEL_INFO, "Invalid VLAN ID " | |
569 | "%d received from RADIUS server", | |
570 | vlan_id); | |
571 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
572 | goto fail; | |
573 | } | |
574 | sta->vlan_id = vlan_id; | |
575 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
576 | HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); | |
577 | } | |
578 | ||
f2a14be7 | 579 | hostapd_free_psk_list(sta->psk); |
5ee56c4e MB |
580 | if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) { |
581 | sta->psk = psk; | |
582 | psk = NULL; | |
05ab9712 | 583 | } else { |
05ab9712 MB |
584 | sta->psk = NULL; |
585 | } | |
586 | ||
2092597f MB |
587 | sta->identity = identity; |
588 | identity = NULL; | |
589 | sta->radius_cui = radius_cui; | |
590 | radius_cui = NULL; | |
591 | ||
6fc6879b JM |
592 | sta->flags &= ~WLAN_STA_PREAUTH; |
593 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
594 | ||
5843e1c9 | 595 | if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) |
6fc6879b JM |
596 | sta->acct_interim_interval = acct_interim_interval; |
597 | if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) | |
598 | ap_sta_session_timeout(hapd, sta, session_timeout); | |
599 | else | |
600 | ap_sta_no_session_timeout(hapd, sta); | |
601 | ||
602 | switch (auth_alg) { | |
603 | case WLAN_AUTH_OPEN: | |
604 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
605 | HOSTAPD_LEVEL_DEBUG, | |
606 | "authentication OK (open system)"); | |
607 | #ifdef IEEE80211_REQUIRE_AUTH_ACK | |
608 | /* Station will be marked authenticated if it ACKs the | |
609 | * authentication reply. */ | |
610 | #else | |
611 | sta->flags |= WLAN_STA_AUTH; | |
612 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
613 | sta->auth_alg = WLAN_AUTH_OPEN; | |
614 | mlme_authenticate_indication(hapd, sta); | |
615 | #endif | |
616 | break; | |
617 | case WLAN_AUTH_SHARED_KEY: | |
618 | resp = auth_shared_key(hapd, sta, auth_transaction, challenge, | |
619 | fc & WLAN_FC_ISWEP); | |
620 | sta->auth_alg = WLAN_AUTH_SHARED_KEY; | |
621 | mlme_authenticate_indication(hapd, sta); | |
622 | if (sta->challenge && auth_transaction == 1) { | |
623 | resp_ies[0] = WLAN_EID_CHALLENGE; | |
624 | resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; | |
625 | os_memcpy(resp_ies + 2, sta->challenge, | |
626 | WLAN_AUTH_CHALLENGE_LEN); | |
627 | resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; | |
628 | } | |
629 | break; | |
630 | #ifdef CONFIG_IEEE80211R | |
631 | case WLAN_AUTH_FT: | |
632 | sta->auth_alg = WLAN_AUTH_FT; | |
633 | if (sta->wpa_sm == NULL) | |
634 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
635 | sta->addr); | |
636 | if (sta->wpa_sm == NULL) { | |
637 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
638 | "state machine"); | |
639 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
640 | goto fail; | |
641 | } | |
642 | wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, | |
643 | auth_transaction, mgmt->u.auth.variable, | |
644 | len - IEEE80211_HDRLEN - | |
645 | sizeof(mgmt->u.auth), | |
646 | handle_auth_ft_finish, hapd); | |
647 | /* handle_auth_ft_finish() callback will complete auth. */ | |
648 | return; | |
649 | #endif /* CONFIG_IEEE80211R */ | |
c10347f2 JM |
650 | #ifdef CONFIG_SAE |
651 | case WLAN_AUTH_SAE: | |
652 | handle_auth_sae(hapd, sta, mgmt, len, auth_transaction); | |
653 | return; | |
654 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
655 | } |
656 | ||
657 | fail: | |
2092597f MB |
658 | os_free(identity); |
659 | os_free(radius_cui); | |
f2a14be7 | 660 | hostapd_free_psk_list(psk); |
2092597f | 661 | |
6fc6879b JM |
662 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, |
663 | auth_transaction + 1, resp, resp_ies, resp_ies_len); | |
664 | } | |
665 | ||
666 | ||
d42a62b3 JM |
667 | static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) |
668 | { | |
2991469c JM |
669 | int i, j = 32, aid; |
670 | ||
d42a62b3 JM |
671 | /* get a unique AID */ |
672 | if (sta->aid > 0) { | |
673 | wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); | |
674 | return 0; | |
675 | } | |
676 | ||
2991469c JM |
677 | for (i = 0; i < AID_WORDS; i++) { |
678 | if (hapd->sta_aid[i] == (u32) -1) | |
679 | continue; | |
680 | for (j = 0; j < 32; j++) { | |
681 | if (!(hapd->sta_aid[i] & BIT(j))) | |
682 | break; | |
683 | } | |
684 | if (j < 32) | |
d42a62b3 | 685 | break; |
d42a62b3 | 686 | } |
2991469c JM |
687 | if (j == 32) |
688 | return -1; | |
689 | aid = i * 32 + j + 1; | |
690 | if (aid > 2007) | |
691 | return -1; | |
d42a62b3 | 692 | |
2991469c JM |
693 | sta->aid = aid; |
694 | hapd->sta_aid[i] |= BIT(j); | |
d42a62b3 JM |
695 | wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); |
696 | return 0; | |
697 | } | |
698 | ||
699 | ||
5586f500 JM |
700 | static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, |
701 | const u8 *ssid_ie, size_t ssid_ie_len) | |
6fc6879b | 702 | { |
5586f500 JM |
703 | if (ssid_ie == NULL) |
704 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 705 | |
5586f500 JM |
706 | if (ssid_ie_len != hapd->conf->ssid.ssid_len || |
707 | os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { | |
708 | char ssid_txt[33]; | |
709 | ieee802_11_print_ssid(ssid_txt, ssid_ie, ssid_ie_len); | |
710 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
711 | HOSTAPD_LEVEL_INFO, | |
712 | "Station tried to associate with unknown SSID " | |
713 | "'%s'", ssid_txt); | |
714 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
b0194fe0 JM |
715 | } |
716 | ||
5586f500 JM |
717 | return WLAN_STATUS_SUCCESS; |
718 | } | |
6fc6879b | 719 | |
6fc6879b | 720 | |
5586f500 JM |
721 | static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, |
722 | const u8 *wmm_ie, size_t wmm_ie_len) | |
723 | { | |
3ae0800c | 724 | sta->flags &= ~WLAN_STA_WMM; |
5d061637 | 725 | sta->qosinfo = 0; |
5586f500 | 726 | if (wmm_ie && hapd->conf->wmm_enabled) { |
5f32f79c | 727 | struct wmm_information_element *wmm; |
5f32f79c | 728 | |
c84b868a | 729 | if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) { |
6fc6879b JM |
730 | hostapd_logger(hapd, sta->addr, |
731 | HOSTAPD_MODULE_WPA, | |
732 | HOSTAPD_LEVEL_DEBUG, | |
3ae0800c | 733 | "invalid WMM element in association " |
6fc6879b | 734 | "request"); |
5f32f79c EP |
735 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
736 | } | |
737 | ||
738 | sta->flags |= WLAN_STA_WMM; | |
739 | wmm = (struct wmm_information_element *) wmm_ie; | |
5d061637 | 740 | sta->qosinfo = wmm->qos_info; |
6fc6879b | 741 | } |
5586f500 JM |
742 | return WLAN_STATUS_SUCCESS; |
743 | } | |
6fc6879b | 744 | |
5586f500 JM |
745 | |
746 | static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, | |
747 | struct ieee802_11_elems *elems) | |
748 | { | |
749 | if (!elems->supp_rates) { | |
750 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
6fc6879b JM |
751 | HOSTAPD_LEVEL_DEBUG, |
752 | "No supported rates element in AssocReq"); | |
5586f500 | 753 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
754 | } |
755 | ||
3489cfb0 JM |
756 | if (elems->supp_rates_len + elems->ext_supp_rates_len > |
757 | sizeof(sta->supported_rates)) { | |
5586f500 | 758 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
6fc6879b | 759 | HOSTAPD_LEVEL_DEBUG, |
3489cfb0 JM |
760 | "Invalid supported rates element length %d+%d", |
761 | elems->supp_rates_len, | |
762 | elems->ext_supp_rates_len); | |
5586f500 | 763 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
764 | } |
765 | ||
3489cfb0 JM |
766 | sta->supported_rates_len = merge_byte_arrays( |
767 | sta->supported_rates, sizeof(sta->supported_rates), | |
768 | elems->supp_rates, elems->supp_rates_len, | |
769 | elems->ext_supp_rates, elems->ext_supp_rates_len); | |
6fc6879b | 770 | |
5586f500 JM |
771 | return WLAN_STATUS_SUCCESS; |
772 | } | |
773 | ||
774 | ||
5586f500 | 775 | static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c | 776 | const u8 *ies, size_t ies_len, int reassoc) |
5586f500 JM |
777 | { |
778 | struct ieee802_11_elems elems; | |
779 | u16 resp; | |
ba091c06 | 780 | const u8 *wpa_ie; |
5586f500 JM |
781 | size_t wpa_ie_len; |
782 | ||
783 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { | |
784 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
785 | HOSTAPD_LEVEL_INFO, "Station sent an invalid " | |
786 | "association request"); | |
787 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
788 | } | |
789 | ||
790 | resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); | |
791 | if (resp != WLAN_STATUS_SUCCESS) | |
792 | return resp; | |
793 | resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); | |
794 | if (resp != WLAN_STATUS_SUCCESS) | |
795 | return resp; | |
796 | resp = copy_supp_rates(hapd, sta, &elems); | |
797 | if (resp != WLAN_STATUS_SUCCESS) | |
798 | return resp; | |
d45354be | 799 | #ifdef CONFIG_IEEE80211N |
f39b07d7 | 800 | resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities, |
5586f500 JM |
801 | elems.ht_capabilities_len); |
802 | if (resp != WLAN_STATUS_SUCCESS) | |
803 | return resp; | |
29448243 JM |
804 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && |
805 | !(sta->flags & WLAN_STA_HT)) { | |
806 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
807 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
808 | "mandatory HT PHY - reject association"); | |
809 | return WLAN_STATUS_ASSOC_DENIED_NO_HT; | |
810 | } | |
d45354be | 811 | #endif /* CONFIG_IEEE80211N */ |
5586f500 | 812 | |
de3cdf35 MP |
813 | #ifdef CONFIG_IEEE80211AC |
814 | resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities, | |
815 | elems.vht_capabilities_len); | |
816 | if (resp != WLAN_STATUS_SUCCESS) | |
817 | return resp; | |
140e850a MP |
818 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && |
819 | !(sta->flags & WLAN_STA_VHT)) { | |
820 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
821 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
822 | "mandatory VHT PHY - reject association"); | |
823 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
824 | } | |
de3cdf35 MP |
825 | #endif /* CONFIG_IEEE80211AC */ |
826 | ||
6fc6879b JM |
827 | if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { |
828 | wpa_ie = elems.rsn_ie; | |
829 | wpa_ie_len = elems.rsn_ie_len; | |
830 | } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && | |
831 | elems.wpa_ie) { | |
832 | wpa_ie = elems.wpa_ie; | |
833 | wpa_ie_len = elems.wpa_ie_len; | |
834 | } else { | |
835 | wpa_ie = NULL; | |
836 | wpa_ie_len = 0; | |
837 | } | |
5586f500 | 838 | |
ad08c363 | 839 | #ifdef CONFIG_WPS |
17f6b900 | 840 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
c47cf42e JM |
841 | if (hapd->conf->wps_state && elems.wps_ie) { |
842 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " | |
843 | "Request - assume WPS is used"); | |
844 | sta->flags |= WLAN_STA_WPS; | |
845 | wpabuf_free(sta->wps_ie); | |
16e46ec0 JM |
846 | sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
847 | WPS_IE_VENDOR_TYPE); | |
17f6b900 JM |
848 | if (sta->wps_ie && wps_is_20(sta->wps_ie)) { |
849 | wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); | |
850 | sta->flags |= WLAN_STA_WPS2; | |
851 | } | |
c47cf42e JM |
852 | wpa_ie = NULL; |
853 | wpa_ie_len = 0; | |
54f489be JM |
854 | if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) { |
855 | wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in " | |
856 | "(Re)Association Request - reject"); | |
857 | return WLAN_STATUS_INVALID_IE; | |
858 | } | |
c47cf42e JM |
859 | } else if (hapd->conf->wps_state && wpa_ie == NULL) { |
860 | wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " | |
861 | "(Re)Association Request - possible WPS use"); | |
862 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
ad08c363 JM |
863 | } else |
864 | #endif /* CONFIG_WPS */ | |
6fc6879b | 865 | if (hapd->conf->wpa && wpa_ie == NULL) { |
5586f500 JM |
866 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
867 | HOSTAPD_LEVEL_INFO, | |
868 | "No WPA/RSN IE in association request"); | |
869 | return WLAN_STATUS_INVALID_IE; | |
6fc6879b JM |
870 | } |
871 | ||
872 | if (hapd->conf->wpa && wpa_ie) { | |
873 | int res; | |
874 | wpa_ie -= 2; | |
875 | wpa_ie_len += 2; | |
876 | if (sta->wpa_sm == NULL) | |
877 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
878 | sta->addr); | |
879 | if (sta->wpa_sm == NULL) { | |
5586f500 JM |
880 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " |
881 | "state machine"); | |
882 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b JM |
883 | } |
884 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
885 | wpa_ie, wpa_ie_len, | |
886 | elems.mdie, elems.mdie_len); | |
887 | if (res == WPA_INVALID_GROUP) | |
888 | resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; | |
889 | else if (res == WPA_INVALID_PAIRWISE) | |
890 | resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; | |
891 | else if (res == WPA_INVALID_AKMP) | |
892 | resp = WLAN_STATUS_AKMP_NOT_VALID; | |
893 | else if (res == WPA_ALLOC_FAIL) | |
894 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
895 | #ifdef CONFIG_IEEE80211W | |
896 | else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) | |
9a9876bf | 897 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b | 898 | else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) |
9a9876bf | 899 | resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; |
6fc6879b JM |
900 | #endif /* CONFIG_IEEE80211W */ |
901 | else if (res == WPA_INVALID_MDIE) | |
902 | resp = WLAN_STATUS_INVALID_MDIE; | |
903 | else if (res != WPA_IE_OK) | |
904 | resp = WLAN_STATUS_INVALID_IE; | |
905 | if (resp != WLAN_STATUS_SUCCESS) | |
5586f500 | 906 | return resp; |
f3f7540e | 907 | #ifdef CONFIG_IEEE80211W |
45c94154 JM |
908 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
909 | sta->sa_query_count > 0) | |
910 | ap_check_sa_query_timeout(hapd, sta); | |
8f4617c6 JM |
911 | if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && |
912 | (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { | |
5d22a1d5 | 913 | /* |
93b76319 JM |
914 | * STA has already been associated with MFP and SA |
915 | * Query timeout has not been reached. Reject the | |
916 | * association attempt temporarily and start SA Query, | |
917 | * if one is not pending. | |
5d22a1d5 JM |
918 | */ |
919 | ||
93b76319 JM |
920 | if (sta->sa_query_count == 0) |
921 | ap_sta_start_sa_query(hapd, sta); | |
5d22a1d5 | 922 | |
5586f500 | 923 | return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; |
5d22a1d5 JM |
924 | } |
925 | ||
f3f7540e JM |
926 | if (wpa_auth_uses_mfp(sta->wpa_sm)) |
927 | sta->flags |= WLAN_STA_MFP; | |
928 | else | |
929 | sta->flags &= ~WLAN_STA_MFP; | |
930 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
931 | |
932 | #ifdef CONFIG_IEEE80211R | |
933 | if (sta->auth_alg == WLAN_AUTH_FT) { | |
934 | if (!reassoc) { | |
935 | wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " | |
936 | "to use association (not " | |
937 | "re-association) with FT auth_alg", | |
938 | MAC2STR(sta->addr)); | |
5586f500 | 939 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
940 | } |
941 | ||
5586f500 JM |
942 | resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, |
943 | ies_len); | |
6fc6879b | 944 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 945 | return resp; |
6fc6879b JM |
946 | } |
947 | #endif /* CONFIG_IEEE80211R */ | |
5586f500 | 948 | |
c10347f2 JM |
949 | #ifdef CONFIG_SAE |
950 | if (wpa_auth_uses_sae(sta->wpa_sm) && | |
951 | sta->auth_alg != WLAN_AUTH_SAE) { | |
952 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use " | |
953 | "SAE AKM after non-SAE auth_alg %u", | |
954 | MAC2STR(sta->addr), sta->auth_alg); | |
955 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
956 | } | |
957 | #endif /* CONFIG_SAE */ | |
958 | ||
ff36ff00 | 959 | #ifdef CONFIG_IEEE80211N |
f0c7a986 | 960 | if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) && |
ff36ff00 | 961 | wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { |
5586f500 JM |
962 | hostapd_logger(hapd, sta->addr, |
963 | HOSTAPD_MODULE_IEEE80211, | |
964 | HOSTAPD_LEVEL_INFO, | |
965 | "Station tried to use TKIP with HT " | |
966 | "association"); | |
967 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; | |
ff36ff00 JM |
968 | } |
969 | #endif /* CONFIG_IEEE80211N */ | |
a8d05fca JM |
970 | } else |
971 | wpa_auth_sta_no_wpa(sta->wpa_sm); | |
6fc6879b | 972 | |
b305c684 JM |
973 | #ifdef CONFIG_P2P |
974 | if (elems.p2p) { | |
975 | wpabuf_free(sta->p2p_ie); | |
976 | sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, | |
977 | P2P_IE_VENDOR_TYPE); | |
8ccbe415 | 978 | |
b305c684 JM |
979 | } else { |
980 | wpabuf_free(sta->p2p_ie); | |
981 | sta->p2p_ie = NULL; | |
982 | } | |
3f4ce13f JM |
983 | |
984 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len); | |
b305c684 JM |
985 | #endif /* CONFIG_P2P */ |
986 | ||
f403dcd6 JM |
987 | #ifdef CONFIG_HS20 |
988 | wpabuf_free(sta->hs20_ie); | |
989 | if (elems.hs20 && elems.hs20_len > 4) { | |
990 | sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, | |
991 | elems.hs20_len - 4); | |
992 | } else | |
993 | sta->hs20_ie = NULL; | |
994 | #endif /* CONFIG_HS20 */ | |
995 | ||
5586f500 JM |
996 | return WLAN_STATUS_SUCCESS; |
997 | } | |
998 | ||
999 | ||
1000 | static void send_deauth(struct hostapd_data *hapd, const u8 *addr, | |
1001 | u16 reason_code) | |
1002 | { | |
1003 | int send_len; | |
1004 | struct ieee80211_mgmt reply; | |
1005 | ||
1006 | os_memset(&reply, 0, sizeof(reply)); | |
1007 | reply.frame_control = | |
1008 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); | |
1009 | os_memcpy(reply.da, addr, ETH_ALEN); | |
1010 | os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); | |
1011 | os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); | |
1012 | ||
1013 | send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); | |
1014 | reply.u.deauth.reason_code = host_to_le16(reason_code); | |
1015 | ||
8cfa3527 | 1016 | if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0) |
5586f500 JM |
1017 | wpa_printf(MSG_INFO, "Failed to send deauth: %s", |
1018 | strerror(errno)); | |
1019 | } | |
1020 | ||
1021 | ||
1022 | static void send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, | |
b57e086c | 1023 | u16 status_code, int reassoc, const u8 *ies, |
5586f500 JM |
1024 | size_t ies_len) |
1025 | { | |
1026 | int send_len; | |
1027 | u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; | |
1028 | struct ieee80211_mgmt *reply; | |
1029 | u8 *p; | |
1030 | ||
1031 | os_memset(buf, 0, sizeof(buf)); | |
1032 | reply = (struct ieee80211_mgmt *) buf; | |
1033 | reply->frame_control = | |
1034 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
1035 | (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : | |
1036 | WLAN_FC_STYPE_ASSOC_RESP)); | |
1037 | os_memcpy(reply->da, sta->addr, ETH_ALEN); | |
1038 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
1039 | os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); | |
1040 | ||
1041 | send_len = IEEE80211_HDRLEN; | |
1042 | send_len += sizeof(reply->u.assoc_resp); | |
1043 | reply->u.assoc_resp.capab_info = | |
1044 | host_to_le16(hostapd_own_capab_info(hapd, sta, 0)); | |
1045 | reply->u.assoc_resp.status_code = host_to_le16(status_code); | |
1046 | reply->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0) | |
1047 | | BIT(14) | BIT(15)); | |
1048 | /* Supported rates */ | |
1049 | p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); | |
1050 | /* Extended supported rates */ | |
1051 | p = hostapd_eid_ext_supp_rates(hapd, p); | |
5586f500 JM |
1052 | |
1053 | #ifdef CONFIG_IEEE80211R | |
1054 | if (status_code == WLAN_STATUS_SUCCESS) { | |
1055 | /* IEEE 802.11r: Mobility Domain Information, Fast BSS | |
1056 | * Transition Information, RSN, [RIC Response] */ | |
1057 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, | |
1058 | buf + sizeof(buf) - p, | |
1059 | sta->auth_alg, ies, ies_len); | |
1060 | } | |
1061 | #endif /* CONFIG_IEEE80211R */ | |
1062 | ||
1063 | #ifdef CONFIG_IEEE80211W | |
1064 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) | |
1065 | p = hostapd_eid_assoc_comeback_time(hapd, sta, p); | |
1066 | #endif /* CONFIG_IEEE80211W */ | |
1067 | ||
1bc774a1 JM |
1068 | #ifdef CONFIG_IEEE80211N |
1069 | p = hostapd_eid_ht_capabilities(hapd, p); | |
1070 | p = hostapd_eid_ht_operation(hapd, p); | |
1071 | #endif /* CONFIG_IEEE80211N */ | |
1072 | ||
14708b50 MP |
1073 | #ifdef CONFIG_IEEE80211AC |
1074 | p = hostapd_eid_vht_capabilities(hapd, p); | |
1075 | p = hostapd_eid_vht_operation(hapd, p); | |
1076 | #endif /* CONFIG_IEEE80211AC */ | |
1077 | ||
1161ff1e | 1078 | p = hostapd_eid_ext_capab(hapd, p); |
b6668734 | 1079 | p = hostapd_eid_bss_max_idle_period(hapd, p); |
1161ff1e | 1080 | |
1bc774a1 JM |
1081 | if (sta->flags & WLAN_STA_WMM) |
1082 | p = hostapd_eid_wmm(hapd, p); | |
1083 | ||
ed7a09f9 | 1084 | #ifdef CONFIG_WPS |
71093e5e JM |
1085 | if ((sta->flags & WLAN_STA_WPS) || |
1086 | ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa)) { | |
ed7a09f9 JM |
1087 | struct wpabuf *wps = wps_build_assoc_resp_ie(); |
1088 | if (wps) { | |
1089 | os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps)); | |
1090 | p += wpabuf_len(wps); | |
1091 | wpabuf_free(wps); | |
1092 | } | |
1093 | } | |
1094 | #endif /* CONFIG_WPS */ | |
1095 | ||
8ccbe415 JM |
1096 | #ifdef CONFIG_P2P |
1097 | if (sta->p2p_ie) { | |
1098 | struct wpabuf *p2p_resp_ie; | |
1099 | enum p2p_status_code status; | |
1100 | switch (status_code) { | |
1101 | case WLAN_STATUS_SUCCESS: | |
1102 | status = P2P_SC_SUCCESS; | |
1103 | break; | |
1104 | case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: | |
1105 | status = P2P_SC_FAIL_LIMIT_REACHED; | |
1106 | break; | |
1107 | default: | |
1108 | status = P2P_SC_FAIL_INVALID_PARAMS; | |
1109 | break; | |
1110 | } | |
1111 | p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status); | |
1112 | if (p2p_resp_ie) { | |
1113 | os_memcpy(p, wpabuf_head(p2p_resp_ie), | |
1114 | wpabuf_len(p2p_resp_ie)); | |
1115 | p += wpabuf_len(p2p_resp_ie); | |
1116 | wpabuf_free(p2p_resp_ie); | |
1117 | } | |
1118 | } | |
1119 | #endif /* CONFIG_P2P */ | |
1120 | ||
962473c1 JM |
1121 | #ifdef CONFIG_P2P_MANAGER |
1122 | if (hapd->conf->p2p & P2P_MANAGE) | |
1123 | p = hostapd_eid_p2p_manage(hapd, p); | |
1124 | #endif /* CONFIG_P2P_MANAGER */ | |
1125 | ||
5586f500 JM |
1126 | send_len += p - reply->u.assoc_resp.variable; |
1127 | ||
8cfa3527 | 1128 | if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0) |
5586f500 JM |
1129 | wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", |
1130 | strerror(errno)); | |
1131 | } | |
1132 | ||
1133 | ||
1134 | static void handle_assoc(struct hostapd_data *hapd, | |
b57e086c JM |
1135 | const struct ieee80211_mgmt *mgmt, size_t len, |
1136 | int reassoc) | |
5586f500 JM |
1137 | { |
1138 | u16 capab_info, listen_interval; | |
1139 | u16 resp = WLAN_STATUS_SUCCESS; | |
b57e086c | 1140 | const u8 *pos; |
5586f500 JM |
1141 | int left, i; |
1142 | struct sta_info *sta; | |
1143 | ||
1144 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : | |
1145 | sizeof(mgmt->u.assoc_req))) { | |
1146 | printf("handle_assoc(reassoc=%d) - too short payload (len=%lu)" | |
1147 | "\n", reassoc, (unsigned long) len); | |
1148 | return; | |
1149 | } | |
1150 | ||
1151 | if (reassoc) { | |
1152 | capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); | |
1153 | listen_interval = le_to_host16( | |
1154 | mgmt->u.reassoc_req.listen_interval); | |
1155 | wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR | |
1156 | " capab_info=0x%02x listen_interval=%d current_ap=" | |
1157 | MACSTR, | |
1158 | MAC2STR(mgmt->sa), capab_info, listen_interval, | |
1159 | MAC2STR(mgmt->u.reassoc_req.current_ap)); | |
1160 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); | |
1161 | pos = mgmt->u.reassoc_req.variable; | |
1162 | } else { | |
1163 | capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); | |
1164 | listen_interval = le_to_host16( | |
1165 | mgmt->u.assoc_req.listen_interval); | |
1166 | wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR | |
1167 | " capab_info=0x%02x listen_interval=%d", | |
1168 | MAC2STR(mgmt->sa), capab_info, listen_interval); | |
1169 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); | |
1170 | pos = mgmt->u.assoc_req.variable; | |
1171 | } | |
1172 | ||
1173 | sta = ap_get_sta(hapd, mgmt->sa); | |
1174 | #ifdef CONFIG_IEEE80211R | |
1175 | if (sta && sta->auth_alg == WLAN_AUTH_FT && | |
1176 | (sta->flags & WLAN_STA_AUTH) == 0) { | |
1177 | wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " | |
1178 | "prior to authentication since it is using " | |
1179 | "over-the-DS FT", MAC2STR(mgmt->sa)); | |
1180 | } else | |
1181 | #endif /* CONFIG_IEEE80211R */ | |
1182 | if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { | |
1183 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1184 | HOSTAPD_LEVEL_INFO, "Station tried to " | |
1185 | "associate before authentication " | |
1186 | "(aid=%d flags=0x%x)", | |
1187 | sta ? sta->aid : -1, | |
1188 | sta ? sta->flags : 0); | |
1189 | send_deauth(hapd, mgmt->sa, | |
1190 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); | |
1191 | return; | |
1192 | } | |
1193 | ||
1194 | if (hapd->tkip_countermeasures) { | |
1195 | resp = WLAN_REASON_MICHAEL_MIC_FAILURE; | |
1196 | goto fail; | |
1197 | } | |
1198 | ||
1199 | if (listen_interval > hapd->conf->max_listen_interval) { | |
1200 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1201 | HOSTAPD_LEVEL_DEBUG, | |
1202 | "Too large Listen Interval (%d)", | |
1203 | listen_interval); | |
1204 | resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; | |
1205 | goto fail; | |
1206 | } | |
1207 | ||
1208 | /* followed by SSID and Supported rates; and HT capabilities if 802.11n | |
1209 | * is used */ | |
1210 | resp = check_assoc_ies(hapd, sta, pos, left, reassoc); | |
1211 | if (resp != WLAN_STATUS_SUCCESS) | |
1212 | goto fail; | |
1213 | ||
1214 | if (hostapd_get_aid(hapd, sta) < 0) { | |
1215 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1216 | HOSTAPD_LEVEL_INFO, "No room for more AIDs"); | |
1217 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
1218 | goto fail; | |
1219 | } | |
1220 | ||
1221 | sta->capability = capab_info; | |
1222 | sta->listen_interval = listen_interval; | |
1223 | ||
6fc6879b JM |
1224 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) |
1225 | sta->flags |= WLAN_STA_NONERP; | |
1226 | for (i = 0; i < sta->supported_rates_len; i++) { | |
1227 | if ((sta->supported_rates[i] & 0x7f) > 22) { | |
1228 | sta->flags &= ~WLAN_STA_NONERP; | |
1229 | break; | |
1230 | } | |
1231 | } | |
1232 | if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { | |
1233 | sta->nonerp_set = 1; | |
1234 | hapd->iface->num_sta_non_erp++; | |
1235 | if (hapd->iface->num_sta_non_erp == 1) | |
1236 | ieee802_11_set_beacons(hapd->iface); | |
1237 | } | |
1238 | ||
1239 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && | |
1240 | !sta->no_short_slot_time_set) { | |
1241 | sta->no_short_slot_time_set = 1; | |
1242 | hapd->iface->num_sta_no_short_slot_time++; | |
1243 | if (hapd->iface->current_mode->mode == | |
1244 | HOSTAPD_MODE_IEEE80211G && | |
1245 | hapd->iface->num_sta_no_short_slot_time == 1) | |
1246 | ieee802_11_set_beacons(hapd->iface); | |
1247 | } | |
1248 | ||
1249 | if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
1250 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
1251 | else | |
1252 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
1253 | ||
1254 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
1255 | !sta->no_short_preamble_set) { | |
1256 | sta->no_short_preamble_set = 1; | |
1257 | hapd->iface->num_sta_no_short_preamble++; | |
1258 | if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G | |
1259 | && hapd->iface->num_sta_no_short_preamble == 1) | |
1260 | ieee802_11_set_beacons(hapd->iface); | |
1261 | } | |
1262 | ||
d45354be | 1263 | #ifdef CONFIG_IEEE80211N |
5586f500 | 1264 | update_ht_state(hapd, sta); |
d45354be | 1265 | #endif /* CONFIG_IEEE80211N */ |
de9289c8 | 1266 | |
6fc6879b JM |
1267 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1268 | HOSTAPD_LEVEL_DEBUG, | |
1269 | "association OK (aid %d)", sta->aid); | |
1270 | /* Station will be marked associated, after it acknowledges AssocResp | |
1271 | */ | |
b8281964 | 1272 | sta->flags |= WLAN_STA_ASSOC_REQ_OK; |
6fc6879b | 1273 | |
6f5c8dbd JM |
1274 | #ifdef CONFIG_IEEE80211W |
1275 | if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { | |
1276 | wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " | |
1277 | "SA Query procedure", reassoc ? "re" : ""); | |
1278 | /* TODO: Send a protected Disassociate frame to the STA using | |
1279 | * the old key and Reason Code "Previous Authentication no | |
1280 | * longer valid". Make sure this is only sent protected since | |
1281 | * unprotected frame would be received by the STA that is now | |
1282 | * trying to associate. | |
1283 | */ | |
1284 | } | |
1285 | #endif /* CONFIG_IEEE80211W */ | |
1286 | ||
1e858f69 JM |
1287 | if (reassoc) { |
1288 | os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap, | |
1289 | ETH_ALEN); | |
1290 | } | |
1291 | ||
6fc6879b JM |
1292 | if (sta->last_assoc_req) |
1293 | os_free(sta->last_assoc_req); | |
1294 | sta->last_assoc_req = os_malloc(len); | |
1295 | if (sta->last_assoc_req) | |
1296 | os_memcpy(sta->last_assoc_req, mgmt, len); | |
1297 | ||
1298 | /* Make sure that the previously registered inactivity timer will not | |
1299 | * remove the STA immediately. */ | |
1300 | sta->timeout_next = STA_NULLFUNC; | |
1301 | ||
1302 | fail: | |
5586f500 | 1303 | send_assoc_resp(hapd, sta, resp, reassoc, pos, left); |
6fc6879b JM |
1304 | } |
1305 | ||
1306 | ||
6fc6879b | 1307 | static void handle_disassoc(struct hostapd_data *hapd, |
f8b1f695 | 1308 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
1309 | { |
1310 | struct sta_info *sta; | |
1311 | ||
1312 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { | |
1313 | printf("handle_disassoc - too short payload (len=%lu)\n", | |
1314 | (unsigned long) len); | |
1315 | return; | |
1316 | } | |
1317 | ||
1318 | wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", | |
1319 | MAC2STR(mgmt->sa), | |
1320 | le_to_host16(mgmt->u.disassoc.reason_code)); | |
1321 | ||
6fc6879b JM |
1322 | sta = ap_get_sta(hapd, mgmt->sa); |
1323 | if (sta == NULL) { | |
1324 | printf("Station " MACSTR " trying to disassociate, but it " | |
1325 | "is not associated.\n", MAC2STR(mgmt->sa)); | |
1326 | return; | |
1327 | } | |
1328 | ||
ae055af4 | 1329 | ap_sta_set_authorized(hapd, sta, 0); |
b8281964 | 1330 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK); |
6fc6879b JM |
1331 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); |
1332 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1333 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
1334 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
1335 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
1336 | /* Stop Accounting and IEEE 802.1X sessions, but leave the STA | |
1337 | * authenticated. */ | |
1338 | accounting_sta_stop(hapd, sta); | |
1339 | ieee802_1x_free_station(sta); | |
51e2a27a | 1340 | hostapd_drv_sta_remove(hapd, sta->addr); |
6fc6879b JM |
1341 | |
1342 | if (sta->timeout_next == STA_NULLFUNC || | |
1343 | sta->timeout_next == STA_DISASSOC) { | |
1344 | sta->timeout_next = STA_DEAUTH; | |
1345 | eloop_cancel_timeout(ap_handle_timer, hapd, sta); | |
1346 | eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, | |
1347 | hapd, sta); | |
1348 | } | |
1349 | ||
1350 | mlme_disassociate_indication( | |
1351 | hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); | |
1352 | } | |
1353 | ||
1354 | ||
1355 | static void handle_deauth(struct hostapd_data *hapd, | |
f8b1f695 | 1356 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
1357 | { |
1358 | struct sta_info *sta; | |
1359 | ||
1360 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { | |
3ec1e902 JM |
1361 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short " |
1362 | "payload (len=%lu)", (unsigned long) len); | |
6fc6879b JM |
1363 | return; |
1364 | } | |
1365 | ||
3ec1e902 | 1366 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR |
24d75245 BG |
1367 | " reason_code=%d", |
1368 | MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code)); | |
6fc6879b | 1369 | |
6fc6879b JM |
1370 | sta = ap_get_sta(hapd, mgmt->sa); |
1371 | if (sta == NULL) { | |
3ec1e902 JM |
1372 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying " |
1373 | "to deauthenticate, but it is not authenticated", | |
24d75245 | 1374 | MAC2STR(mgmt->sa)); |
6fc6879b JM |
1375 | return; |
1376 | } | |
1377 | ||
ae055af4 | 1378 | ap_sta_set_authorized(hapd, sta, 0); |
b8281964 JM |
1379 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | |
1380 | WLAN_STA_ASSOC_REQ_OK); | |
6fc6879b JM |
1381 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); |
1382 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1383 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
1384 | mlme_deauthenticate_indication( | |
1385 | hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); | |
1386 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
1387 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
1388 | ap_free_sta(hapd, sta); | |
1389 | } | |
1390 | ||
1391 | ||
1392 | static void handle_beacon(struct hostapd_data *hapd, | |
b57e086c | 1393 | const struct ieee80211_mgmt *mgmt, size_t len, |
6fc6879b JM |
1394 | struct hostapd_frame_info *fi) |
1395 | { | |
1396 | struct ieee802_11_elems elems; | |
1397 | ||
1398 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { | |
1399 | printf("handle_beacon - too short payload (len=%lu)\n", | |
1400 | (unsigned long) len); | |
1401 | return; | |
1402 | } | |
1403 | ||
3d536eb4 | 1404 | (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, |
6fc6879b JM |
1405 | len - (IEEE80211_HDRLEN + |
1406 | sizeof(mgmt->u.beacon)), &elems, | |
1407 | 0); | |
1408 | ||
6fc6879b JM |
1409 | ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); |
1410 | } | |
1411 | ||
1412 | ||
5d22a1d5 | 1413 | #ifdef CONFIG_IEEE80211W |
88b4b424 | 1414 | |
93b76319 | 1415 | static void hostapd_sa_query_action(struct hostapd_data *hapd, |
b57e086c JM |
1416 | const struct ieee80211_mgmt *mgmt, |
1417 | size_t len) | |
5d22a1d5 | 1418 | { |
b57e086c | 1419 | const u8 *end; |
5d22a1d5 | 1420 | |
93b76319 JM |
1421 | end = mgmt->u.action.u.sa_query_resp.trans_id + |
1422 | WLAN_SA_QUERY_TR_ID_LEN; | |
5d22a1d5 | 1423 | if (((u8 *) mgmt) + len < end) { |
93b76319 | 1424 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action " |
5d22a1d5 JM |
1425 | "frame (len=%lu)", (unsigned long) len); |
1426 | return; | |
1427 | } | |
1428 | ||
d4370eac MP |
1429 | ieee802_11_sa_query_action(hapd, mgmt->sa, |
1430 | mgmt->u.action.u.sa_query_resp.action, | |
1431 | mgmt->u.action.u.sa_query_resp.trans_id); | |
5d22a1d5 | 1432 | } |
5d22a1d5 JM |
1433 | |
1434 | ||
c4e281fd JM |
1435 | static int robust_action_frame(u8 category) |
1436 | { | |
1437 | return category != WLAN_ACTION_PUBLIC && | |
1438 | category != WLAN_ACTION_HT; | |
1439 | } | |
9f64b827 | 1440 | #endif /* CONFIG_IEEE80211W */ |
c4e281fd JM |
1441 | |
1442 | ||
c79938a5 JM |
1443 | #ifdef CONFIG_WNM |
1444 | static void hostapd_wnm_action(struct hostapd_data *hapd, struct sta_info *sta, | |
1445 | const struct ieee80211_mgmt *mgmt, | |
1446 | size_t len) | |
1447 | { | |
1448 | struct rx_action action; | |
1449 | if (len < IEEE80211_HDRLEN + 2) | |
1450 | return; | |
1451 | os_memset(&action, 0, sizeof(action)); | |
1452 | action.da = mgmt->da; | |
1453 | action.sa = mgmt->sa; | |
1454 | action.bssid = mgmt->bssid; | |
1455 | action.category = mgmt->u.action.category; | |
1456 | action.data = (const u8 *) &mgmt->u.action.u.wnm_sleep_req.action; | |
1457 | action.len = len - IEEE80211_HDRLEN - 1; | |
1458 | action.freq = hapd->iface->freq; | |
1459 | ieee802_11_rx_wnm_action_ap(hapd, &action); | |
1460 | } | |
1461 | #endif /* CONFIG_WNM */ | |
1462 | ||
1463 | ||
6fc6879b | 1464 | static void handle_action(struct hostapd_data *hapd, |
b57e086c | 1465 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b | 1466 | { |
c4e281fd | 1467 | struct sta_info *sta; |
46eeedac | 1468 | sta = ap_get_sta(hapd, mgmt->sa); |
c4e281fd | 1469 | |
6fc6879b JM |
1470 | if (len < IEEE80211_HDRLEN + 1) { |
1471 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1472 | HOSTAPD_LEVEL_DEBUG, | |
1473 | "handle_action - too short payload (len=%lu)", | |
1474 | (unsigned long) len); | |
1475 | return; | |
1476 | } | |
1477 | ||
c79938a5 JM |
1478 | if (mgmt->u.action.category != WLAN_ACTION_PUBLIC && |
1479 | (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { | |
1480 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action " | |
1481 | "frame (category=%u) from unassociated STA " MACSTR, | |
1482 | MAC2STR(mgmt->sa), mgmt->u.action.category); | |
1483 | return; | |
1484 | } | |
1485 | ||
c4e281fd JM |
1486 | #ifdef CONFIG_IEEE80211W |
1487 | if (sta && (sta->flags & WLAN_STA_MFP) && | |
1488 | !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP) && | |
1489 | robust_action_frame(mgmt->u.action.category))) { | |
1490 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1491 | HOSTAPD_LEVEL_DEBUG, | |
1492 | "Dropped unprotected Robust Action frame from " | |
1493 | "an MFP STA"); | |
1494 | return; | |
1495 | } | |
1496 | #endif /* CONFIG_IEEE80211W */ | |
1497 | ||
6fc6879b JM |
1498 | switch (mgmt->u.action.category) { |
1499 | #ifdef CONFIG_IEEE80211R | |
1500 | case WLAN_ACTION_FT: | |
6fc6879b JM |
1501 | if (wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, |
1502 | len - IEEE80211_HDRLEN)) | |
1503 | break; | |
6fc6879b | 1504 | return; |
6fc6879b | 1505 | #endif /* CONFIG_IEEE80211R */ |
c2a71408 | 1506 | case WLAN_ACTION_WMM: |
3ae0800c | 1507 | hostapd_wmm_action(hapd, mgmt, len); |
6fc6879b | 1508 | return; |
5d22a1d5 | 1509 | #ifdef CONFIG_IEEE80211W |
93b76319 JM |
1510 | case WLAN_ACTION_SA_QUERY: |
1511 | hostapd_sa_query_action(hapd, mgmt, len); | |
5d22a1d5 JM |
1512 | return; |
1513 | #endif /* CONFIG_IEEE80211W */ | |
c79938a5 JM |
1514 | #ifdef CONFIG_WNM |
1515 | case WLAN_ACTION_WNM: | |
1516 | hostapd_wnm_action(hapd, sta, mgmt, len); | |
1517 | return; | |
1518 | #endif /* CONFIG_WNM */ | |
c706d5aa JM |
1519 | case WLAN_ACTION_PUBLIC: |
1520 | if (hapd->public_action_cb) { | |
1521 | hapd->public_action_cb(hapd->public_action_cb_ctx, | |
1522 | (u8 *) mgmt, len, | |
1523 | hapd->iface->freq); | |
1524 | return; | |
1525 | } | |
1526 | break; | |
e44f8bf2 JM |
1527 | case WLAN_ACTION_VENDOR_SPECIFIC: |
1528 | if (hapd->vendor_action_cb) { | |
1529 | if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx, | |
1530 | (u8 *) mgmt, len, | |
1531 | hapd->iface->freq) == 0) | |
1532 | return; | |
1533 | } | |
1534 | break; | |
6fc6879b JM |
1535 | } |
1536 | ||
1537 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1538 | HOSTAPD_LEVEL_DEBUG, | |
1539 | "handle_action - unknown action category %d or invalid " | |
1540 | "frame", | |
1541 | mgmt->u.action.category); | |
1542 | if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) && | |
1543 | !(mgmt->sa[0] & 0x01)) { | |
b57e086c JM |
1544 | struct ieee80211_mgmt *resp; |
1545 | ||
6fc6879b JM |
1546 | /* |
1547 | * IEEE 802.11-REVma/D9.0 - 7.3.1.11 | |
1548 | * Return the Action frame to the source without change | |
1549 | * except that MSB of the Category set to 1. | |
1550 | */ | |
1551 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " | |
1552 | "frame back to sender"); | |
b57e086c JM |
1553 | resp = os_malloc(len); |
1554 | if (resp == NULL) | |
1555 | return; | |
1556 | os_memcpy(resp, mgmt, len); | |
1557 | os_memcpy(resp->da, resp->sa, ETH_ALEN); | |
1558 | os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); | |
1559 | os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); | |
1560 | resp->u.action.category |= 0x80; | |
1561 | ||
41fe8b42 JM |
1562 | if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) { |
1563 | wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send " | |
1564 | "Action frame"); | |
1565 | } | |
b57e086c | 1566 | os_free(resp); |
6fc6879b JM |
1567 | } |
1568 | } | |
1569 | ||
1570 | ||
1571 | /** | |
1572 | * ieee802_11_mgmt - process incoming IEEE 802.11 management frames | |
1573 | * @hapd: hostapd BSS data structure (the BSS to which the management frame was | |
1574 | * sent to) | |
1575 | * @buf: management frame data (starting from IEEE 802.11 header) | |
1576 | * @len: length of frame data in octets | |
a17df5fb | 1577 | * @fi: meta data about received frame (signal level, etc.) |
6fc6879b JM |
1578 | * |
1579 | * Process all incoming IEEE 802.11 management frames. This will be called for | |
1580 | * each frame received from the kernel driver through wlan#ap interface. In | |
1581 | * addition, it can be called to re-inserted pending frames (e.g., when using | |
1582 | * external RADIUS server as an MAC ACL). | |
1583 | */ | |
b57e086c | 1584 | void ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
1585 | struct hostapd_frame_info *fi) |
1586 | { | |
f8b1f695 | 1587 | struct ieee80211_mgmt *mgmt; |
6fc6879b | 1588 | int broadcast; |
f8b1f695 JM |
1589 | u16 fc, stype; |
1590 | ||
cbcf92b4 JM |
1591 | if (len < 24) |
1592 | return; | |
1593 | ||
f8b1f695 JM |
1594 | mgmt = (struct ieee80211_mgmt *) buf; |
1595 | fc = le_to_host16(mgmt->frame_control); | |
1596 | stype = WLAN_FC_GET_STYPE(fc); | |
6fc6879b JM |
1597 | |
1598 | if (stype == WLAN_FC_STYPE_BEACON) { | |
1599 | handle_beacon(hapd, mgmt, len, fi); | |
1600 | return; | |
1601 | } | |
1602 | ||
6fc6879b JM |
1603 | broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff && |
1604 | mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff && | |
1605 | mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff; | |
1606 | ||
1607 | if (!broadcast && | |
3eeee931 AN |
1608 | #ifdef CONFIG_P2P |
1609 | /* Invitation responses can be sent with the peer MAC as BSSID */ | |
1610 | !((hapd->conf->p2p & P2P_GROUP_OWNER) && | |
1611 | stype == WLAN_FC_STYPE_ACTION) && | |
1612 | #endif /* CONFIG_P2P */ | |
fe2c5241 | 1613 | os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { |
6fc6879b JM |
1614 | printf("MGMT: BSSID=" MACSTR " not our address\n", |
1615 | MAC2STR(mgmt->bssid)); | |
1616 | return; | |
1617 | } | |
1618 | ||
1619 | ||
1620 | if (stype == WLAN_FC_STYPE_PROBE_REQ) { | |
baf513d6 | 1621 | handle_probe_req(hapd, mgmt, len, fi->ssi_signal); |
6fc6879b JM |
1622 | return; |
1623 | } | |
1624 | ||
1625 | if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { | |
1626 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1627 | HOSTAPD_LEVEL_DEBUG, | |
1628 | "MGMT: DA=" MACSTR " not our address", | |
1629 | MAC2STR(mgmt->da)); | |
1630 | return; | |
1631 | } | |
1632 | ||
1633 | switch (stype) { | |
1634 | case WLAN_FC_STYPE_AUTH: | |
1635 | wpa_printf(MSG_DEBUG, "mgmt::auth"); | |
1636 | handle_auth(hapd, mgmt, len); | |
1637 | break; | |
1638 | case WLAN_FC_STYPE_ASSOC_REQ: | |
1639 | wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); | |
1640 | handle_assoc(hapd, mgmt, len, 0); | |
1641 | break; | |
6fc6879b JM |
1642 | case WLAN_FC_STYPE_REASSOC_REQ: |
1643 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); | |
1644 | handle_assoc(hapd, mgmt, len, 1); | |
1645 | break; | |
1646 | case WLAN_FC_STYPE_DISASSOC: | |
1647 | wpa_printf(MSG_DEBUG, "mgmt::disassoc"); | |
1648 | handle_disassoc(hapd, mgmt, len); | |
1649 | break; | |
1650 | case WLAN_FC_STYPE_DEAUTH: | |
3ec1e902 | 1651 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth"); |
6fc6879b JM |
1652 | handle_deauth(hapd, mgmt, len); |
1653 | break; | |
1654 | case WLAN_FC_STYPE_ACTION: | |
1655 | wpa_printf(MSG_DEBUG, "mgmt::action"); | |
1656 | handle_action(hapd, mgmt, len); | |
1657 | break; | |
1658 | default: | |
1659 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
1660 | HOSTAPD_LEVEL_DEBUG, | |
1661 | "unknown mgmt frame subtype %d", stype); | |
1662 | break; | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | ||
1667 | static void handle_auth_cb(struct hostapd_data *hapd, | |
f8b1f695 | 1668 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
1669 | size_t len, int ok) |
1670 | { | |
1671 | u16 auth_alg, auth_transaction, status_code; | |
1672 | struct sta_info *sta; | |
1673 | ||
1674 | if (!ok) { | |
1675 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
1676 | HOSTAPD_LEVEL_NOTICE, | |
1677 | "did not acknowledge authentication response"); | |
1678 | return; | |
1679 | } | |
1680 | ||
1681 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
1682 | printf("handle_auth_cb - too short payload (len=%lu)\n", | |
1683 | (unsigned long) len); | |
1684 | return; | |
1685 | } | |
1686 | ||
1687 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
1688 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
1689 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
1690 | ||
1691 | sta = ap_get_sta(hapd, mgmt->da); | |
1692 | if (!sta) { | |
1693 | printf("handle_auth_cb: STA " MACSTR " not found\n", | |
1694 | MAC2STR(mgmt->da)); | |
1695 | return; | |
1696 | } | |
1697 | ||
1698 | if (status_code == WLAN_STATUS_SUCCESS && | |
1699 | ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || | |
1700 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { | |
1701 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1702 | HOSTAPD_LEVEL_INFO, "authenticated"); | |
1703 | sta->flags |= WLAN_STA_AUTH; | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | ||
1708 | static void handle_assoc_cb(struct hostapd_data *hapd, | |
f8b1f695 | 1709 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
1710 | size_t len, int reassoc, int ok) |
1711 | { | |
1712 | u16 status; | |
1713 | struct sta_info *sta; | |
1714 | int new_assoc = 1; | |
fc4e2d95 | 1715 | struct ieee80211_ht_capabilities ht_cap; |
a9a1d0f0 | 1716 | struct ieee80211_vht_capabilities vht_cap; |
6fc6879b | 1717 | |
6fc6879b JM |
1718 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : |
1719 | sizeof(mgmt->u.assoc_resp))) { | |
1720 | printf("handle_assoc_cb(reassoc=%d) - too short payload " | |
1721 | "(len=%lu)\n", reassoc, (unsigned long) len); | |
1722 | return; | |
1723 | } | |
1724 | ||
6fc6879b JM |
1725 | sta = ap_get_sta(hapd, mgmt->da); |
1726 | if (!sta) { | |
1727 | printf("handle_assoc_cb: STA " MACSTR " not found\n", | |
1728 | MAC2STR(mgmt->da)); | |
1729 | return; | |
1730 | } | |
1731 | ||
22b42372 FF |
1732 | if (!ok) { |
1733 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
1734 | HOSTAPD_LEVEL_DEBUG, | |
1735 | "did not acknowledge association response"); | |
1736 | sta->flags &= ~WLAN_STA_ASSOC_REQ_OK; | |
1737 | return; | |
1738 | } | |
1739 | ||
1740 | if (reassoc) | |
1741 | status = le_to_host16(mgmt->u.reassoc_resp.status_code); | |
1742 | else | |
1743 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
1744 | ||
6fc6879b JM |
1745 | if (status != WLAN_STATUS_SUCCESS) |
1746 | goto fail; | |
1747 | ||
1748 | /* Stop previous accounting session, if one is started, and allocate | |
1749 | * new session id for the new session. */ | |
1750 | accounting_sta_stop(hapd, sta); | |
6fc6879b JM |
1751 | |
1752 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1753 | HOSTAPD_LEVEL_INFO, | |
2fc98d02 JM |
1754 | "associated (aid %d)", |
1755 | sta->aid); | |
6fc6879b JM |
1756 | |
1757 | if (sta->flags & WLAN_STA_ASSOC) | |
1758 | new_assoc = 0; | |
1759 | sta->flags |= WLAN_STA_ASSOC; | |
ef580012 JM |
1760 | if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) || |
1761 | sta->auth_alg == WLAN_AUTH_FT) { | |
1762 | /* | |
1763 | * Open, static WEP, or FT protocol; no separate authorization | |
1764 | * step. | |
1765 | */ | |
6905dcb1 | 1766 | ap_sta_set_authorized(hapd, sta, 1); |
515cf93f | 1767 | } |
6fc6879b JM |
1768 | |
1769 | if (reassoc) | |
1770 | mlme_reassociate_indication(hapd, sta); | |
1771 | else | |
1772 | mlme_associate_indication(hapd, sta); | |
1773 | ||
5d22a1d5 | 1774 | #ifdef CONFIG_IEEE80211W |
93b76319 | 1775 | sta->sa_query_timed_out = 0; |
5d22a1d5 JM |
1776 | #endif /* CONFIG_IEEE80211W */ |
1777 | ||
c140a228 JM |
1778 | /* |
1779 | * Remove the STA entry in order to make sure the STA PS state gets | |
1780 | * cleared and configuration gets updated in case of reassociation back | |
1781 | * to the same AP. | |
1782 | */ | |
51e2a27a | 1783 | hostapd_drv_sta_remove(hapd, sta->addr); |
c140a228 | 1784 | |
d45354be JM |
1785 | #ifdef CONFIG_IEEE80211N |
1786 | if (sta->flags & WLAN_STA_HT) | |
1787 | hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); | |
1788 | #endif /* CONFIG_IEEE80211N */ | |
a9a1d0f0 JB |
1789 | #ifdef CONFIG_IEEE80211AC |
1790 | if (sta->flags & WLAN_STA_VHT) | |
1791 | hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap); | |
1792 | #endif /* CONFIG_IEEE80211AC */ | |
d45354be | 1793 | |
0e8a96a9 JM |
1794 | if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability, |
1795 | sta->supported_rates, sta->supported_rates_len, | |
1796 | sta->listen_interval, | |
d83ab1fe | 1797 | sta->flags & WLAN_STA_HT ? &ht_cap : NULL, |
a9a1d0f0 | 1798 | sta->flags & WLAN_STA_VHT ? &vht_cap : NULL, |
5d061637 | 1799 | sta->flags, sta->qosinfo)) { |
6fc6879b JM |
1800 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1801 | HOSTAPD_LEVEL_NOTICE, | |
1802 | "Could not add STA to kernel driver"); | |
8666585b YAP |
1803 | |
1804 | ap_sta_disconnect(hapd, sta, sta->addr, | |
1805 | WLAN_REASON_DISASSOC_AP_BUSY); | |
1806 | ||
1807 | goto fail; | |
6fc6879b JM |
1808 | } |
1809 | ||
7826ceae | 1810 | if (sta->flags & WLAN_STA_WDS) |
0e8a96a9 | 1811 | hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 1); |
7826ceae | 1812 | |
6fc6879b JM |
1813 | if (sta->eapol_sm == NULL) { |
1814 | /* | |
1815 | * This STA does not use RADIUS server for EAP authentication, | |
1816 | * so bind it to the selected VLAN interface now, since the | |
1817 | * interface selection is not going to change anymore. | |
1818 | */ | |
4254100d JM |
1819 | if (ap_sta_bind_vlan(hapd, sta, 0) < 0) |
1820 | goto fail; | |
6fc6879b JM |
1821 | } else if (sta->vlan_id) { |
1822 | /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ | |
4254100d JM |
1823 | if (ap_sta_bind_vlan(hapd, sta, 0) < 0) |
1824 | goto fail; | |
6fc6879b | 1825 | } |
eddd8010 | 1826 | |
0e8a96a9 | 1827 | hostapd_set_sta_flags(hapd, sta); |
6fc6879b JM |
1828 | |
1829 | if (sta->auth_alg == WLAN_AUTH_FT) | |
1830 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
1831 | else | |
1832 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
d24df7c3 | 1833 | hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); |
6fc6879b JM |
1834 | |
1835 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); | |
1836 | ||
1837 | fail: | |
1838 | /* Copy of the association request is not needed anymore */ | |
1839 | if (sta->last_assoc_req) { | |
1840 | os_free(sta->last_assoc_req); | |
1841 | sta->last_assoc_req = NULL; | |
1842 | } | |
1843 | } | |
1844 | ||
1845 | ||
4dc03726 JM |
1846 | static void handle_deauth_cb(struct hostapd_data *hapd, |
1847 | const struct ieee80211_mgmt *mgmt, | |
1848 | size_t len, int ok) | |
1849 | { | |
1850 | struct sta_info *sta; | |
1851 | if (mgmt->da[0] & 0x01) | |
1852 | return; | |
1853 | sta = ap_get_sta(hapd, mgmt->da); | |
1854 | if (!sta) { | |
1855 | wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR | |
1856 | " not found", MAC2STR(mgmt->da)); | |
1857 | return; | |
1858 | } | |
1859 | if (ok) | |
1860 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth", | |
1861 | MAC2STR(sta->addr)); | |
1862 | else | |
1863 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
1864 | "deauth", MAC2STR(sta->addr)); | |
1865 | ||
1866 | ap_sta_deauth_cb(hapd, sta); | |
1867 | } | |
1868 | ||
1869 | ||
1870 | static void handle_disassoc_cb(struct hostapd_data *hapd, | |
1871 | const struct ieee80211_mgmt *mgmt, | |
1872 | size_t len, int ok) | |
1873 | { | |
1874 | struct sta_info *sta; | |
1875 | if (mgmt->da[0] & 0x01) | |
1876 | return; | |
1877 | sta = ap_get_sta(hapd, mgmt->da); | |
1878 | if (!sta) { | |
1879 | wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR | |
1880 | " not found", MAC2STR(mgmt->da)); | |
1881 | return; | |
1882 | } | |
1883 | if (ok) | |
1884 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc", | |
1885 | MAC2STR(sta->addr)); | |
1886 | else | |
1887 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
1888 | "disassoc", MAC2STR(sta->addr)); | |
1889 | ||
1890 | ap_sta_disassoc_cb(hapd, sta); | |
1891 | } | |
1892 | ||
1893 | ||
1c6e69cc JM |
1894 | /** |
1895 | * ieee802_11_mgmt_cb - Process management frame TX status callback | |
1896 | * @hapd: hostapd BSS data structure (the BSS from which the management frame | |
1897 | * was sent from) | |
1898 | * @buf: management frame data (starting from IEEE 802.11 header) | |
1899 | * @len: length of frame data in octets | |
1900 | * @stype: management frame subtype from frame control field | |
1901 | * @ok: Whether the frame was ACK'ed | |
1902 | */ | |
f8b1f695 | 1903 | void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
1904 | u16 stype, int ok) |
1905 | { | |
f8b1f695 JM |
1906 | const struct ieee80211_mgmt *mgmt; |
1907 | mgmt = (const struct ieee80211_mgmt *) buf; | |
6fc6879b JM |
1908 | |
1909 | switch (stype) { | |
1910 | case WLAN_FC_STYPE_AUTH: | |
1911 | wpa_printf(MSG_DEBUG, "mgmt::auth cb"); | |
1912 | handle_auth_cb(hapd, mgmt, len, ok); | |
1913 | break; | |
1914 | case WLAN_FC_STYPE_ASSOC_RESP: | |
1915 | wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); | |
1916 | handle_assoc_cb(hapd, mgmt, len, 0, ok); | |
1917 | break; | |
1918 | case WLAN_FC_STYPE_REASSOC_RESP: | |
1919 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); | |
1920 | handle_assoc_cb(hapd, mgmt, len, 1, ok); | |
1921 | break; | |
1922 | case WLAN_FC_STYPE_PROBE_RESP: | |
2d8bf732 | 1923 | wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb"); |
6fc6879b JM |
1924 | break; |
1925 | case WLAN_FC_STYPE_DEAUTH: | |
4dc03726 JM |
1926 | wpa_printf(MSG_DEBUG, "mgmt::deauth cb"); |
1927 | handle_deauth_cb(hapd, mgmt, len, ok); | |
1928 | break; | |
1929 | case WLAN_FC_STYPE_DISASSOC: | |
1930 | wpa_printf(MSG_DEBUG, "mgmt::disassoc cb"); | |
1931 | handle_disassoc_cb(hapd, mgmt, len, ok); | |
6fc6879b | 1932 | break; |
5d22a1d5 JM |
1933 | case WLAN_FC_STYPE_ACTION: |
1934 | wpa_printf(MSG_DEBUG, "mgmt::action cb"); | |
1935 | break; | |
6fc6879b JM |
1936 | default: |
1937 | printf("unknown mgmt cb frame subtype %d\n", stype); | |
1938 | break; | |
1939 | } | |
1940 | } | |
1941 | ||
1942 | ||
6fc6879b JM |
1943 | int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) |
1944 | { | |
1945 | /* TODO */ | |
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | ||
1950 | int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, | |
1951 | char *buf, size_t buflen) | |
1952 | { | |
1953 | /* TODO */ | |
1954 | return 0; | |
1955 | } | |
1956 | ||
f8b1f695 JM |
1957 | |
1958 | void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, | |
1959 | const u8 *buf, size_t len, int ack) | |
1960 | { | |
1961 | struct sta_info *sta; | |
1962 | struct hostapd_iface *iface = hapd->iface; | |
1963 | ||
1964 | sta = ap_get_sta(hapd, addr); | |
1965 | if (sta == NULL && iface->num_bss > 1) { | |
1966 | size_t j; | |
1967 | for (j = 0; j < iface->num_bss; j++) { | |
1968 | hapd = iface->bss[j]; | |
1969 | sta = ap_get_sta(hapd, addr); | |
1970 | if (sta) | |
1971 | break; | |
1972 | } | |
1973 | } | |
0c01d65d | 1974 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) |
f8b1f695 JM |
1975 | return; |
1976 | if (sta->flags & WLAN_STA_PENDING_POLL) { | |
1977 | wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " | |
1978 | "activity poll", MAC2STR(sta->addr), | |
1979 | ack ? "ACKed" : "did not ACK"); | |
1980 | if (ack) | |
1981 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
1982 | } | |
1983 | ||
1984 | ieee802_1x_tx_status(hapd, sta, buf, len, ack); | |
1985 | } | |
1986 | ||
1987 | ||
dd840f79 JB |
1988 | void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst, |
1989 | const u8 *data, size_t len, int ack) | |
1990 | { | |
1991 | struct sta_info *sta; | |
1992 | struct hostapd_iface *iface = hapd->iface; | |
1993 | ||
1994 | sta = ap_get_sta(hapd, dst); | |
1995 | if (sta == NULL && iface->num_bss > 1) { | |
1996 | size_t j; | |
1997 | for (j = 0; j < iface->num_bss; j++) { | |
1998 | hapd = iface->bss[j]; | |
1999 | sta = ap_get_sta(hapd, dst); | |
2000 | if (sta) | |
2001 | break; | |
2002 | } | |
2003 | } | |
d9a38716 JM |
2004 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { |
2005 | wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA " | |
2006 | MACSTR " that is not currently associated", | |
2007 | MAC2STR(dst)); | |
dd840f79 | 2008 | return; |
d9a38716 | 2009 | } |
dd840f79 JB |
2010 | |
2011 | ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack); | |
2012 | } | |
2013 | ||
2014 | ||
bcf24348 JB |
2015 | void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr) |
2016 | { | |
2017 | struct sta_info *sta; | |
2018 | struct hostapd_iface *iface = hapd->iface; | |
2019 | ||
2020 | sta = ap_get_sta(hapd, addr); | |
2021 | if (sta == NULL && iface->num_bss > 1) { | |
2022 | size_t j; | |
2023 | for (j = 0; j < iface->num_bss; j++) { | |
2024 | hapd = iface->bss[j]; | |
2025 | sta = ap_get_sta(hapd, addr); | |
2026 | if (sta) | |
2027 | break; | |
2028 | } | |
2029 | } | |
2030 | if (sta == NULL) | |
2031 | return; | |
2032 | if (!(sta->flags & WLAN_STA_PENDING_POLL)) | |
2033 | return; | |
2034 | ||
2035 | wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending " | |
2036 | "activity poll", MAC2STR(sta->addr)); | |
2037 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
2038 | } | |
2039 | ||
2040 | ||
fbbfcbac FF |
2041 | void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, |
2042 | int wds) | |
f8b1f695 JM |
2043 | { |
2044 | struct sta_info *sta; | |
2045 | ||
2046 | sta = ap_get_sta(hapd, src); | |
fbbfcbac | 2047 | if (sta && (sta->flags & WLAN_STA_ASSOC)) { |
99743811 FF |
2048 | if (!hapd->conf->wds_sta) |
2049 | return; | |
2050 | ||
fbbfcbac FF |
2051 | if (wds && !(sta->flags & WLAN_STA_WDS)) { |
2052 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " | |
2053 | "STA " MACSTR " (aid %u)", | |
2054 | MAC2STR(sta->addr), sta->aid); | |
2055 | sta->flags |= WLAN_STA_WDS; | |
0e8a96a9 | 2056 | hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 1); |
fbbfcbac | 2057 | } |
f8b1f695 | 2058 | return; |
fbbfcbac | 2059 | } |
f8b1f695 JM |
2060 | |
2061 | wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " | |
2062 | MACSTR, MAC2STR(src)); | |
1df492df JM |
2063 | if (src[0] & 0x01) { |
2064 | /* Broadcast bit set in SA?! Ignore the frame silently. */ | |
2065 | return; | |
2066 | } | |
2067 | ||
b8281964 JM |
2068 | if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) { |
2069 | wpa_printf(MSG_DEBUG, "Association Response to the STA has " | |
2070 | "already been sent, but no TX status yet known - " | |
2071 | "ignore Class 3 frame issue with " MACSTR, | |
2072 | MAC2STR(src)); | |
2073 | return; | |
2074 | } | |
2075 | ||
f8b1f695 | 2076 | if (sta && (sta->flags & WLAN_STA_AUTH)) |
51e2a27a | 2077 | hostapd_drv_sta_disassoc( |
f8b1f695 JM |
2078 | hapd, src, |
2079 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
2080 | else | |
51e2a27a | 2081 | hostapd_drv_sta_deauth( |
f8b1f695 JM |
2082 | hapd, src, |
2083 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
2084 | } | |
2085 | ||
2086 | ||
6fc6879b | 2087 | #endif /* CONFIG_NATIVE_WINDOWS */ |