]>
Commit | Line | Data |
---|---|---|
6fc6879b JM |
1 | /* |
2 | * hostapd / IEEE 802.11 Management | |
f3383366 | 3 | * Copyright (c) 2002-2017, 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 | 16 | #include "crypto/sha256.h" |
7a12edd1 JM |
17 | #include "crypto/sha384.h" |
18 | #include "crypto/sha512.h" | |
d136c376 | 19 | #include "crypto/random.h" |
81f4f619 JM |
20 | #include "common/ieee802_11_defs.h" |
21 | #include "common/ieee802_11_common.h" | |
03da66bd | 22 | #include "common/wpa_ctrl.h" |
98efcc41 | 23 | #include "common/sae.h" |
10ec6a5f | 24 | #include "common/dpp.h" |
99621dc1 | 25 | #include "common/ocv.h" |
03da66bd JM |
26 | #include "radius/radius.h" |
27 | #include "radius/radius_client.h" | |
e44f8bf2 | 28 | #include "p2p/p2p.h" |
ed7a09f9 | 29 | #include "wps/wps.h" |
037378ff | 30 | #include "fst/fst.h" |
6fc6879b | 31 | #include "hostapd.h" |
6fc6879b | 32 | #include "beacon.h" |
6fc6879b JM |
33 | #include "ieee802_11_auth.h" |
34 | #include "sta_info.h" | |
6fc6879b | 35 | #include "ieee802_1x.h" |
6226e38d | 36 | #include "wpa_auth.h" |
f2991170 | 37 | #include "pmksa_cache_auth.h" |
1057d78e | 38 | #include "wmm.h" |
6fc6879b JM |
39 | #include "ap_list.h" |
40 | #include "accounting.h" | |
6226e38d JM |
41 | #include "ap_config.h" |
42 | #include "ap_mlme.h" | |
dce044cc | 43 | #include "p2p_hostapd.h" |
cee7d66b | 44 | #include "ap_drv_ops.h" |
c79938a5 | 45 | #include "wnm_ap.h" |
0e2412d0 | 46 | #include "hw_features.h" |
6226e38d | 47 | #include "ieee802_11.h" |
3d7ad2f6 | 48 | #include "dfs.h" |
6332aaf3 | 49 | #include "mbo_ap.h" |
2572df34 | 50 | #include "rrm.h" |
04059ab8 | 51 | #include "taxonomy.h" |
54b04d6f | 52 | #include "fils_hlp.h" |
9c2b8204 JM |
53 | #include "dpp_hostapd.h" |
54 | #include "gas_query_ap.h" | |
6fc6879b JM |
55 | |
56 | ||
5e5f8c81 JM |
57 | #ifdef CONFIG_FILS |
58 | static struct wpabuf * | |
59 | prepare_auth_resp_fils(struct hostapd_data *hapd, | |
60 | struct sta_info *sta, u16 *resp, | |
61 | struct rsn_pmksa_cache_entry *pmksa, | |
62 | struct wpabuf *erp_resp, | |
63 | const u8 *msk, size_t msk_len, | |
64 | int *is_pub); | |
65 | #endif /* CONFIG_FILS */ | |
ff9f40ae JM |
66 | static void handle_auth(struct hostapd_data *hapd, |
67 | const struct ieee80211_mgmt *mgmt, size_t len, | |
68 | int rssi, int from_queue); | |
5e5f8c81 | 69 | |
9c06f0f6 VN |
70 | |
71 | u8 * hostapd_eid_multi_ap(struct hostapd_data *hapd, u8 *eid) | |
72 | { | |
73 | u8 multi_ap_val = 0; | |
74 | ||
75 | if (!hapd->conf->multi_ap) | |
76 | return eid; | |
77 | if (hapd->conf->multi_ap & BACKHAUL_BSS) | |
78 | multi_ap_val |= MULTI_AP_BACKHAUL_BSS; | |
79 | if (hapd->conf->multi_ap & FRONTHAUL_BSS) | |
80 | multi_ap_val |= MULTI_AP_FRONTHAUL_BSS; | |
81 | ||
82 | return eid + add_multi_ap_ie(eid, 9, multi_ap_val); | |
83 | } | |
84 | ||
85 | ||
6fc6879b JM |
86 | u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) |
87 | { | |
88 | u8 *pos = eid; | |
89 | int i, num, count; | |
90 | ||
91 | if (hapd->iface->current_rates == NULL) | |
92 | return eid; | |
93 | ||
94 | *pos++ = WLAN_EID_SUPP_RATES; | |
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 | /* rest of the rates are encoded in Extended supported | |
102 | * rates element */ | |
103 | num = 8; | |
104 | } | |
105 | ||
106 | *pos++ = num; | |
6fc6879b JM |
107 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num; |
108 | i++) { | |
109 | count++; | |
110 | *pos = hapd->iface->current_rates[i].rate / 5; | |
111 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
112 | *pos |= 0x80; | |
113 | pos++; | |
114 | } | |
115 | ||
202d97d4 JB |
116 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) { |
117 | count++; | |
29448243 | 118 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; |
202d97d4 JB |
119 | } |
120 | ||
121 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) { | |
122 | count++; | |
123 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
124 | } | |
29448243 | 125 | |
6fc6879b JM |
126 | return pos; |
127 | } | |
128 | ||
129 | ||
130 | u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
131 | { | |
132 | u8 *pos = eid; | |
133 | int i, num, count; | |
134 | ||
135 | if (hapd->iface->current_rates == NULL) | |
136 | return eid; | |
137 | ||
138 | num = hapd->iface->num_rates; | |
29448243 JM |
139 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
140 | num++; | |
202d97d4 JB |
141 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
142 | num++; | |
6fc6879b JM |
143 | if (num <= 8) |
144 | return eid; | |
145 | num -= 8; | |
146 | ||
147 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
148 | *pos++ = num; | |
6fc6879b JM |
149 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; |
150 | i++) { | |
151 | count++; | |
152 | if (count <= 8) | |
153 | continue; /* already in SuppRates IE */ | |
154 | *pos = hapd->iface->current_rates[i].rate / 5; | |
155 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
156 | *pos |= 0x80; | |
157 | pos++; | |
158 | } | |
159 | ||
202d97d4 JB |
160 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) { |
161 | count++; | |
162 | if (count > 8) | |
163 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; | |
164 | } | |
165 | ||
166 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) { | |
167 | count++; | |
168 | if (count > 8) | |
169 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
170 | } | |
29448243 | 171 | |
6fc6879b JM |
172 | return pos; |
173 | } | |
174 | ||
175 | ||
f41ded6f | 176 | u16 hostapd_own_capab_info(struct hostapd_data *hapd) |
6fc6879b JM |
177 | { |
178 | int capab = WLAN_CAPABILITY_ESS; | |
179 | int privacy; | |
3d7ad2f6 | 180 | int dfs; |
01018212 | 181 | int i; |
3d7ad2f6 C |
182 | |
183 | /* Check if any of configured channels require DFS */ | |
184 | dfs = hostapd_is_dfs_required(hapd->iface); | |
185 | if (dfs < 0) { | |
186 | wpa_printf(MSG_WARNING, "Failed to check if DFS is required; ret=%d", | |
187 | dfs); | |
188 | dfs = 0; | |
189 | } | |
6fc6879b JM |
190 | |
191 | if (hapd->iface->num_sta_no_short_preamble == 0 && | |
192 | hapd->iconf->preamble == SHORT_PREAMBLE) | |
193 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
194 | ||
195 | privacy = hapd->conf->ssid.wep.keys_set; | |
196 | ||
197 | if (hapd->conf->ieee802_1x && | |
198 | (hapd->conf->default_wep_key_len || | |
199 | hapd->conf->individual_wep_key_len)) | |
200 | privacy = 1; | |
201 | ||
202 | if (hapd->conf->wpa) | |
203 | privacy = 1; | |
204 | ||
a14896e8 JM |
205 | #ifdef CONFIG_HS20 |
206 | if (hapd->conf->osen) | |
207 | privacy = 1; | |
208 | #endif /* CONFIG_HS20 */ | |
209 | ||
6fc6879b JM |
210 | if (privacy) |
211 | capab |= WLAN_CAPABILITY_PRIVACY; | |
212 | ||
213 | if (hapd->iface->current_mode && | |
214 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && | |
215 | hapd->iface->num_sta_no_short_slot_time == 0) | |
216 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
217 | ||
3d7ad2f6 C |
218 | /* |
219 | * Currently, Spectrum Management capability bit is set when directly | |
220 | * requested in configuration by spectrum_mgmt_required or when AP is | |
221 | * running on DFS channel. | |
222 | * TODO: Also consider driver support for TPC to set Spectrum Mgmt bit | |
223 | */ | |
224 | if (hapd->iface->current_mode && | |
225 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211A && | |
226 | (hapd->iconf->spectrum_mgmt_required || dfs)) | |
227 | capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; | |
228 | ||
01018212 DS |
229 | for (i = 0; i < RRM_CAPABILITIES_IE_LEN; i++) { |
230 | if (hapd->conf->radio_measurements[i]) { | |
231 | capab |= IEEE80211_CAP_RRM; | |
232 | break; | |
233 | } | |
234 | } | |
0629eeb4 | 235 | |
6fc6879b JM |
236 | return capab; |
237 | } | |
238 | ||
239 | ||
7cb53ded | 240 | #ifndef CONFIG_NO_RC4 |
6fc6879b | 241 | static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c JM |
242 | u16 auth_transaction, const u8 *challenge, |
243 | int iswep) | |
6fc6879b JM |
244 | { |
245 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
246 | HOSTAPD_LEVEL_DEBUG, | |
247 | "authentication (shared key, transaction %d)", | |
248 | auth_transaction); | |
249 | ||
250 | if (auth_transaction == 1) { | |
251 | if (!sta->challenge) { | |
252 | /* Generate a pseudo-random challenge */ | |
253 | u8 key[8]; | |
f441e5af | 254 | |
6fc6879b JM |
255 | sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); |
256 | if (sta->challenge == NULL) | |
257 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
258 | ||
f441e5af NL |
259 | if (os_get_random(key, sizeof(key)) < 0) { |
260 | os_free(sta->challenge); | |
261 | sta->challenge = NULL; | |
262 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
263 | } | |
264 | ||
8ef16831 JM |
265 | rc4_skip(key, sizeof(key), 0, |
266 | sta->challenge, WLAN_AUTH_CHALLENGE_LEN); | |
6fc6879b JM |
267 | } |
268 | return 0; | |
269 | } | |
270 | ||
271 | if (auth_transaction != 3) | |
272 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
273 | ||
274 | /* Transaction 3 */ | |
275 | if (!iswep || !sta->challenge || !challenge || | |
34ef46ce JM |
276 | os_memcmp_const(sta->challenge, challenge, |
277 | WLAN_AUTH_CHALLENGE_LEN)) { | |
6fc6879b JM |
278 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
279 | HOSTAPD_LEVEL_INFO, | |
280 | "shared key authentication - invalid " | |
281 | "challenge-response"); | |
282 | return WLAN_STATUS_CHALLENGE_FAIL; | |
283 | } | |
284 | ||
285 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
286 | HOSTAPD_LEVEL_DEBUG, | |
287 | "authentication OK (shared key)"); | |
6fc6879b JM |
288 | sta->flags |= WLAN_STA_AUTH; |
289 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
6fc6879b JM |
290 | os_free(sta->challenge); |
291 | sta->challenge = NULL; | |
292 | ||
293 | return 0; | |
294 | } | |
7cb53ded | 295 | #endif /* CONFIG_NO_RC4 */ |
6fc6879b JM |
296 | |
297 | ||
bb598c3b AB |
298 | static int send_auth_reply(struct hostapd_data *hapd, |
299 | const u8 *dst, const u8 *bssid, | |
300 | u16 auth_alg, u16 auth_transaction, u16 resp, | |
e7525a29 | 301 | const u8 *ies, size_t ies_len, const char *dbg) |
6fc6879b JM |
302 | { |
303 | struct ieee80211_mgmt *reply; | |
304 | u8 *buf; | |
305 | size_t rlen; | |
bb598c3b | 306 | int reply_res = WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
307 | |
308 | rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; | |
309 | buf = os_zalloc(rlen); | |
310 | if (buf == NULL) | |
bb598c3b | 311 | return -1; |
6fc6879b JM |
312 | |
313 | reply = (struct ieee80211_mgmt *) buf; | |
314 | reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
315 | WLAN_FC_STYPE_AUTH); | |
6fc6879b JM |
316 | os_memcpy(reply->da, dst, ETH_ALEN); |
317 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
318 | os_memcpy(reply->bssid, bssid, ETH_ALEN); | |
319 | ||
320 | reply->u.auth.auth_alg = host_to_le16(auth_alg); | |
321 | reply->u.auth.auth_transaction = host_to_le16(auth_transaction); | |
322 | reply->u.auth.status_code = host_to_le16(resp); | |
323 | ||
324 | if (ies && ies_len) | |
325 | os_memcpy(reply->u.auth.variable, ies, ies_len); | |
326 | ||
327 | wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR | |
e7525a29 | 328 | " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu) (dbg=%s)", |
6fc6879b | 329 | MAC2STR(dst), auth_alg, auth_transaction, |
e7525a29 | 330 | resp, (unsigned long) ies_len, dbg); |
8cfa3527 | 331 | if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0) |
bb598c3b AB |
332 | wpa_printf(MSG_INFO, "send_auth_reply: send failed"); |
333 | else | |
334 | reply_res = WLAN_STATUS_SUCCESS; | |
6fc6879b JM |
335 | |
336 | os_free(buf); | |
bb598c3b AB |
337 | |
338 | return reply_res; | |
6fc6879b JM |
339 | } |
340 | ||
341 | ||
4ec1fd8e | 342 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b JM |
343 | static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, |
344 | u16 auth_transaction, u16 status, | |
345 | const u8 *ies, size_t ies_len) | |
346 | { | |
347 | struct hostapd_data *hapd = ctx; | |
348 | struct sta_info *sta; | |
bb598c3b | 349 | int reply_res; |
6fc6879b | 350 | |
bb598c3b | 351 | reply_res = send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, |
e7525a29 BG |
352 | auth_transaction, status, ies, ies_len, |
353 | "auth-ft-finish"); | |
6fc6879b JM |
354 | |
355 | sta = ap_get_sta(hapd, dst); | |
356 | if (sta == NULL) | |
357 | return; | |
358 | ||
bb598c3b AB |
359 | if (sta->added_unassoc && (reply_res != WLAN_STATUS_SUCCESS || |
360 | status != WLAN_STATUS_SUCCESS)) { | |
361 | hostapd_drv_sta_remove(hapd, sta->addr); | |
362 | sta->added_unassoc = 0; | |
363 | return; | |
364 | } | |
365 | ||
366 | if (status != WLAN_STATUS_SUCCESS) | |
367 | return; | |
368 | ||
6fc6879b JM |
369 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, |
370 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
371 | sta->flags |= WLAN_STA_AUTH; | |
372 | mlme_authenticate_indication(hapd, sta); | |
373 | } | |
4ec1fd8e | 374 | #endif /* CONFIG_IEEE80211R_AP */ |
6fc6879b JM |
375 | |
376 | ||
c10347f2 | 377 | #ifdef CONFIG_SAE |
21af6d15 | 378 | |
9249afc8 JM |
379 | static void sae_set_state(struct sta_info *sta, enum sae_state state, |
380 | const char *reason) | |
381 | { | |
382 | wpa_printf(MSG_DEBUG, "SAE: State %s -> %s for peer " MACSTR " (%s)", | |
383 | sae_state_txt(sta->sae->state), sae_state_txt(state), | |
384 | MAC2STR(sta->addr), reason); | |
385 | sta->sae->state = state; | |
386 | } | |
387 | ||
388 | ||
e96da42b | 389 | static struct wpabuf * auth_build_sae_commit(struct hostapd_data *hapd, |
872b7545 | 390 | struct sta_info *sta, int update) |
21af6d15 JM |
391 | { |
392 | struct wpabuf *buf; | |
9be19d0b JM |
393 | const char *password = NULL; |
394 | struct sae_password_entry *pw; | |
395 | const char *rx_id = NULL; | |
21af6d15 | 396 | |
9be19d0b JM |
397 | if (sta->sae->tmp) |
398 | rx_id = sta->sae->tmp->pw_id; | |
399 | ||
400 | for (pw = hapd->conf->sae_passwords; pw; pw = pw->next) { | |
401 | if (!is_broadcast_ether_addr(pw->peer_addr) && | |
402 | os_memcmp(pw->peer_addr, sta->addr, ETH_ALEN) != 0) | |
403 | continue; | |
404 | if ((rx_id && !pw->identifier) || (!rx_id && pw->identifier)) | |
405 | continue; | |
406 | if (rx_id && pw->identifier && | |
407 | os_strcmp(rx_id, pw->identifier) != 0) | |
408 | continue; | |
409 | password = pw->password; | |
410 | break; | |
411 | } | |
2377c1ca JM |
412 | if (!password) |
413 | password = hapd->conf->ssid.wpa_passphrase; | |
414 | if (!password) { | |
146f6c9a JM |
415 | wpa_printf(MSG_DEBUG, "SAE: No password available"); |
416 | return NULL; | |
417 | } | |
418 | ||
872b7545 MH |
419 | if (update && |
420 | sae_prepare_commit(hapd->own_addr, sta->addr, | |
9be19d0b | 421 | (u8 *) password, os_strlen(password), rx_id, |
8e31e955 JM |
422 | sta->sae) < 0) { |
423 | wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE"); | |
21af6d15 | 424 | return NULL; |
8e31e955 | 425 | } |
21af6d15 | 426 | |
b0e91e38 JM |
427 | if (pw && pw->vlan_id) { |
428 | if (!sta->sae->tmp) { | |
429 | wpa_printf(MSG_INFO, | |
430 | "SAE: No temporary data allocated - cannot store VLAN ID"); | |
431 | return NULL; | |
432 | } | |
433 | sta->sae->tmp->vlan_id = pw->vlan_id; | |
434 | } | |
435 | ||
9be19d0b JM |
436 | buf = wpabuf_alloc(SAE_COMMIT_MAX_LEN + |
437 | (rx_id ? 3 + os_strlen(rx_id) : 0)); | |
8e31e955 JM |
438 | if (buf == NULL) |
439 | return NULL; | |
872b7545 | 440 | sae_write_commit(sta->sae, buf, sta->sae->tmp ? |
9be19d0b | 441 | sta->sae->tmp->anti_clogging_token : NULL, rx_id); |
21af6d15 JM |
442 | |
443 | return buf; | |
444 | } | |
445 | ||
446 | ||
447 | static struct wpabuf * auth_build_sae_confirm(struct hostapd_data *hapd, | |
448 | struct sta_info *sta) | |
449 | { | |
450 | struct wpabuf *buf; | |
451 | ||
fb8fcc29 | 452 | buf = wpabuf_alloc(SAE_CONFIRM_MAX_LEN); |
21af6d15 JM |
453 | if (buf == NULL) |
454 | return NULL; | |
455 | ||
fb8fcc29 | 456 | sae_write_confirm(sta->sae, buf); |
21af6d15 JM |
457 | |
458 | return buf; | |
459 | } | |
460 | ||
461 | ||
e96da42b BC |
462 | static int auth_sae_send_commit(struct hostapd_data *hapd, |
463 | struct sta_info *sta, | |
872b7545 | 464 | const u8 *bssid, int update) |
e96da42b BC |
465 | { |
466 | struct wpabuf *data; | |
bb598c3b | 467 | int reply_res; |
e96da42b | 468 | |
872b7545 | 469 | data = auth_build_sae_commit(hapd, sta, update); |
9be19d0b JM |
470 | if (!data && sta->sae->tmp && sta->sae->tmp->pw_id) |
471 | return WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER; | |
e96da42b BC |
472 | if (data == NULL) |
473 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
474 | ||
bb598c3b AB |
475 | reply_res = send_auth_reply(hapd, sta->addr, bssid, WLAN_AUTH_SAE, 1, |
476 | WLAN_STATUS_SUCCESS, wpabuf_head(data), | |
e7525a29 | 477 | wpabuf_len(data), "sae-send-commit"); |
e96da42b BC |
478 | |
479 | wpabuf_free(data); | |
480 | ||
bb598c3b | 481 | return reply_res; |
e96da42b BC |
482 | } |
483 | ||
484 | ||
485 | static int auth_sae_send_confirm(struct hostapd_data *hapd, | |
486 | struct sta_info *sta, | |
487 | const u8 *bssid) | |
488 | { | |
489 | struct wpabuf *data; | |
bb598c3b | 490 | int reply_res; |
e96da42b BC |
491 | |
492 | data = auth_build_sae_confirm(hapd, sta); | |
493 | if (data == NULL) | |
494 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
495 | ||
bb598c3b AB |
496 | reply_res = send_auth_reply(hapd, sta->addr, bssid, WLAN_AUTH_SAE, 2, |
497 | WLAN_STATUS_SUCCESS, wpabuf_head(data), | |
e7525a29 | 498 | wpabuf_len(data), "sae-send-confirm"); |
e96da42b BC |
499 | |
500 | wpabuf_free(data); | |
501 | ||
bb598c3b | 502 | return reply_res; |
e96da42b BC |
503 | } |
504 | ||
505 | ||
d136c376 JM |
506 | static int use_sae_anti_clogging(struct hostapd_data *hapd) |
507 | { | |
508 | struct sta_info *sta; | |
509 | unsigned int open = 0; | |
510 | ||
511 | if (hapd->conf->sae_anti_clogging_threshold == 0) | |
512 | return 1; | |
513 | ||
514 | for (sta = hapd->sta_list; sta; sta = sta->next) { | |
515 | if (!sta->sae) | |
516 | continue; | |
517 | if (sta->sae->state != SAE_COMMITTED && | |
518 | sta->sae->state != SAE_CONFIRMED) | |
519 | continue; | |
520 | open++; | |
521 | if (open >= hapd->conf->sae_anti_clogging_threshold) | |
522 | return 1; | |
523 | } | |
524 | ||
ff9f40ae JM |
525 | /* In addition to already existing open SAE sessions, check whether |
526 | * there are enough pending commit messages in the processing queue to | |
527 | * potentially result in too many open sessions. */ | |
528 | if (open + dl_list_len(&hapd->sae_commit_queue) >= | |
529 | hapd->conf->sae_anti_clogging_threshold) | |
530 | return 1; | |
531 | ||
d136c376 JM |
532 | return 0; |
533 | } | |
534 | ||
535 | ||
a9af1da0 JM |
536 | static u8 sae_token_hash(struct hostapd_data *hapd, const u8 *addr) |
537 | { | |
538 | u8 hash[SHA256_MAC_LEN]; | |
539 | ||
540 | hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
541 | addr, ETH_ALEN, hash); | |
542 | return hash[0]; | |
543 | } | |
544 | ||
545 | ||
d136c376 JM |
546 | static int check_sae_token(struct hostapd_data *hapd, const u8 *addr, |
547 | const u8 *token, size_t token_len) | |
548 | { | |
549 | u8 mac[SHA256_MAC_LEN]; | |
a9af1da0 JM |
550 | const u8 *addrs[2]; |
551 | size_t len[2]; | |
552 | u16 token_idx; | |
553 | u8 idx; | |
d136c376 JM |
554 | |
555 | if (token_len != SHA256_MAC_LEN) | |
556 | return -1; | |
a9af1da0 JM |
557 | idx = sae_token_hash(hapd, addr); |
558 | token_idx = hapd->sae_pending_token_idx[idx]; | |
559 | if (token_idx == 0 || token_idx != WPA_GET_BE16(token)) { | |
560 | wpa_printf(MSG_DEBUG, "SAE: Invalid anti-clogging token from " | |
561 | MACSTR " - token_idx 0x%04x, expected 0x%04x", | |
562 | MAC2STR(addr), WPA_GET_BE16(token), token_idx); | |
563 | return -1; | |
564 | } | |
565 | ||
566 | addrs[0] = addr; | |
567 | len[0] = ETH_ALEN; | |
568 | addrs[1] = token; | |
569 | len[1] = 2; | |
570 | if (hmac_sha256_vector(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
571 | 2, addrs, len, mac) < 0 || | |
572 | os_memcmp_const(token + 2, &mac[2], SHA256_MAC_LEN - 2) != 0) | |
d136c376 JM |
573 | return -1; |
574 | ||
a9af1da0 JM |
575 | hapd->sae_pending_token_idx[idx] = 0; /* invalidate used token */ |
576 | ||
d136c376 JM |
577 | return 0; |
578 | } | |
579 | ||
580 | ||
581 | static struct wpabuf * auth_build_token_req(struct hostapd_data *hapd, | |
a959a3b6 | 582 | int group, const u8 *addr) |
d136c376 JM |
583 | { |
584 | struct wpabuf *buf; | |
585 | u8 *token; | |
fe52c210 | 586 | struct os_reltime now; |
a9af1da0 JM |
587 | u8 idx[2]; |
588 | const u8 *addrs[2]; | |
589 | size_t len[2]; | |
590 | u8 p_idx; | |
591 | u16 token_idx; | |
d136c376 | 592 | |
fe52c210 JB |
593 | os_get_reltime(&now); |
594 | if (!os_reltime_initialized(&hapd->last_sae_token_key_update) || | |
a9af1da0 JM |
595 | os_reltime_expired(&now, &hapd->last_sae_token_key_update, 60) || |
596 | hapd->sae_token_idx == 0xffff) { | |
a50414c3 JM |
597 | if (random_get_bytes(hapd->sae_token_key, |
598 | sizeof(hapd->sae_token_key)) < 0) | |
599 | return NULL; | |
d136c376 JM |
600 | wpa_hexdump(MSG_DEBUG, "SAE: Updated token key", |
601 | hapd->sae_token_key, sizeof(hapd->sae_token_key)); | |
fe52c210 | 602 | hapd->last_sae_token_key_update = now; |
a9af1da0 JM |
603 | hapd->sae_token_idx = 0; |
604 | os_memset(hapd->sae_pending_token_idx, 0, | |
605 | sizeof(hapd->sae_pending_token_idx)); | |
d136c376 JM |
606 | } |
607 | ||
a959a3b6 | 608 | buf = wpabuf_alloc(sizeof(le16) + SHA256_MAC_LEN); |
d136c376 JM |
609 | if (buf == NULL) |
610 | return NULL; | |
611 | ||
a959a3b6 MH |
612 | wpabuf_put_le16(buf, group); /* Finite Cyclic Group */ |
613 | ||
a9af1da0 JM |
614 | p_idx = sae_token_hash(hapd, addr); |
615 | token_idx = hapd->sae_pending_token_idx[p_idx]; | |
616 | if (!token_idx) { | |
617 | hapd->sae_token_idx++; | |
618 | token_idx = hapd->sae_token_idx; | |
619 | hapd->sae_pending_token_idx[p_idx] = token_idx; | |
620 | } | |
621 | WPA_PUT_BE16(idx, token_idx); | |
d136c376 | 622 | token = wpabuf_put(buf, SHA256_MAC_LEN); |
a9af1da0 JM |
623 | addrs[0] = addr; |
624 | len[0] = ETH_ALEN; | |
625 | addrs[1] = idx; | |
626 | len[1] = sizeof(idx); | |
627 | if (hmac_sha256_vector(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
628 | 2, addrs, len, token) < 0) { | |
629 | wpabuf_free(buf); | |
630 | return NULL; | |
631 | } | |
632 | WPA_PUT_BE16(token, token_idx); | |
d136c376 JM |
633 | |
634 | return buf; | |
635 | } | |
636 | ||
637 | ||
d8b841eb | 638 | static int sae_check_big_sync(struct hostapd_data *hapd, struct sta_info *sta) |
f3b8ad4d | 639 | { |
d8b841eb | 640 | if (sta->sae->sync > hapd->conf->sae_sync) { |
9249afc8 | 641 | sae_set_state(sta, SAE_NOTHING, "Sync > dot11RSNASAESync"); |
f3b8ad4d BC |
642 | sta->sae->sync = 0; |
643 | return -1; | |
644 | } | |
645 | return 0; | |
646 | } | |
647 | ||
648 | ||
649 | static void auth_sae_retransmit_timer(void *eloop_ctx, void *eloop_data) | |
650 | { | |
651 | struct hostapd_data *hapd = eloop_ctx; | |
652 | struct sta_info *sta = eloop_data; | |
653 | int ret; | |
654 | ||
d8b841eb | 655 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
656 | return; |
657 | sta->sae->sync++; | |
dad01292 | 658 | wpa_printf(MSG_DEBUG, "SAE: Auth SAE retransmit timer for " MACSTR |
9249afc8 JM |
659 | " (sync=%d state=%s)", |
660 | MAC2STR(sta->addr), sta->sae->sync, | |
661 | sae_state_txt(sta->sae->state)); | |
f3b8ad4d BC |
662 | |
663 | switch (sta->sae->state) { | |
664 | case SAE_COMMITTED: | |
665 | ret = auth_sae_send_commit(hapd, sta, hapd->own_addr, 0); | |
ecd40fef MH |
666 | eloop_register_timeout(0, |
667 | hapd->dot11RSNASAERetransPeriod * 1000, | |
f3b8ad4d BC |
668 | auth_sae_retransmit_timer, hapd, sta); |
669 | break; | |
670 | case SAE_CONFIRMED: | |
671 | ret = auth_sae_send_confirm(hapd, sta, hapd->own_addr); | |
ecd40fef MH |
672 | eloop_register_timeout(0, |
673 | hapd->dot11RSNASAERetransPeriod * 1000, | |
f3b8ad4d BC |
674 | auth_sae_retransmit_timer, hapd, sta); |
675 | break; | |
676 | default: | |
677 | ret = -1; | |
678 | break; | |
679 | } | |
680 | ||
681 | if (ret != WLAN_STATUS_SUCCESS) | |
682 | wpa_printf(MSG_INFO, "SAE: Failed to retransmit: ret=%d", ret); | |
683 | } | |
684 | ||
685 | ||
686 | void sae_clear_retransmit_timer(struct hostapd_data *hapd, struct sta_info *sta) | |
687 | { | |
688 | eloop_cancel_timeout(auth_sae_retransmit_timer, hapd, sta); | |
689 | } | |
690 | ||
691 | ||
692 | static void sae_set_retransmit_timer(struct hostapd_data *hapd, | |
693 | struct sta_info *sta) | |
694 | { | |
695 | if (!(hapd->conf->mesh & MESH_ENABLED)) | |
696 | return; | |
697 | ||
698 | eloop_cancel_timeout(auth_sae_retransmit_timer, hapd, sta); | |
ecd40fef | 699 | eloop_register_timeout(0, hapd->dot11RSNASAERetransPeriod * 1000, |
f3b8ad4d BC |
700 | auth_sae_retransmit_timer, hapd, sta); |
701 | } | |
702 | ||
703 | ||
4ffb0fef SD |
704 | static void sae_sme_send_external_auth_status(struct hostapd_data *hapd, |
705 | struct sta_info *sta, u16 status) | |
706 | { | |
707 | struct external_auth params; | |
708 | ||
709 | os_memset(¶ms, 0, sizeof(params)); | |
710 | params.status = status; | |
dd1a8cef | 711 | params.bssid = sta->addr; |
4ffb0fef SD |
712 | if (status == WLAN_STATUS_SUCCESS && sta->sae) |
713 | params.pmkid = sta->sae->pmkid; | |
714 | ||
715 | hostapd_drv_send_external_auth_status(hapd, ¶ms); | |
716 | } | |
717 | ||
718 | ||
9f2cf23e MH |
719 | void sae_accept_sta(struct hostapd_data *hapd, struct sta_info *sta) |
720 | { | |
b0e91e38 JM |
721 | #ifndef CONFIG_NO_VLAN |
722 | struct vlan_description vlan_desc; | |
723 | ||
724 | if (sta->sae->tmp && sta->sae->tmp->vlan_id > 0) { | |
725 | wpa_printf(MSG_DEBUG, "SAE: Assign STA " MACSTR | |
726 | " to VLAN ID %d", | |
727 | MAC2STR(sta->addr), sta->sae->tmp->vlan_id); | |
728 | ||
729 | os_memset(&vlan_desc, 0, sizeof(vlan_desc)); | |
730 | vlan_desc.notempty = 1; | |
731 | vlan_desc.untagged = sta->sae->tmp->vlan_id; | |
732 | if (!hostapd_vlan_valid(hapd->conf->vlan, &vlan_desc)) { | |
733 | wpa_printf(MSG_INFO, | |
734 | "Invalid VLAN ID %d in sae_password", | |
735 | sta->sae->tmp->vlan_id); | |
736 | return; | |
737 | } | |
738 | ||
739 | if (ap_sta_set_vlan(hapd, sta, &vlan_desc) < 0 || | |
740 | ap_sta_bind_vlan(hapd, sta) < 0) { | |
741 | wpa_printf(MSG_INFO, | |
742 | "Failed to assign VLAN ID %d from sae_password to " | |
743 | MACSTR, sta->sae->tmp->vlan_id, | |
744 | MAC2STR(sta->addr)); | |
745 | return; | |
746 | } | |
747 | } | |
748 | #endif /* CONFIG_NO_VLAN */ | |
749 | ||
9f2cf23e MH |
750 | sta->flags |= WLAN_STA_AUTH; |
751 | sta->auth_alg = WLAN_AUTH_SAE; | |
752 | mlme_authenticate_indication(hapd, sta); | |
753 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
9249afc8 | 754 | sae_set_state(sta, SAE_ACCEPTED, "Accept Confirm"); |
9f2cf23e MH |
755 | wpa_auth_pmksa_add_sae(hapd->wpa_auth, sta->addr, |
756 | sta->sae->pmk, sta->sae->pmkid); | |
4ffb0fef | 757 | sae_sme_send_external_auth_status(hapd, sta, WLAN_STATUS_SUCCESS); |
9f2cf23e MH |
758 | } |
759 | ||
760 | ||
e96da42b | 761 | static int sae_sm_step(struct hostapd_data *hapd, struct sta_info *sta, |
10cf866b JM |
762 | const u8 *bssid, u8 auth_transaction, int allow_reuse, |
763 | int *sta_removed) | |
e96da42b BC |
764 | { |
765 | int ret; | |
766 | ||
10cf866b JM |
767 | *sta_removed = 0; |
768 | ||
e96da42b BC |
769 | if (auth_transaction != 1 && auth_transaction != 2) |
770 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
771 | ||
9249afc8 JM |
772 | wpa_printf(MSG_DEBUG, "SAE: Peer " MACSTR " state=%s auth_trans=%u", |
773 | MAC2STR(sta->addr), sae_state_txt(sta->sae->state), | |
774 | auth_transaction); | |
e96da42b BC |
775 | switch (sta->sae->state) { |
776 | case SAE_NOTHING: | |
777 | if (auth_transaction == 1) { | |
f2143615 JM |
778 | ret = auth_sae_send_commit(hapd, sta, bssid, |
779 | !allow_reuse); | |
e96da42b BC |
780 | if (ret) |
781 | return ret; | |
9249afc8 | 782 | sae_set_state(sta, SAE_COMMITTED, "Sent Commit"); |
e96da42b BC |
783 | |
784 | if (sae_process_commit(sta->sae) < 0) | |
785 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
786 | ||
787 | /* | |
788 | * In mesh case, both Commit and Confirm can be sent | |
789 | * immediately. In infrastructure BSS, only a single | |
790 | * Authentication frame (Commit) is expected from the AP | |
791 | * here and the second one (Confirm) will be sent once | |
792 | * the STA has sent its second Authentication frame | |
793 | * (Confirm). | |
794 | */ | |
795 | if (hapd->conf->mesh & MESH_ENABLED) { | |
796 | /* | |
797 | * Send both Commit and Confirm immediately | |
798 | * based on SAE finite state machine | |
799 | * Nothing -> Confirm transition. | |
800 | */ | |
801 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
802 | if (ret) | |
803 | return ret; | |
9249afc8 JM |
804 | sae_set_state(sta, SAE_CONFIRMED, |
805 | "Sent Confirm (mesh)"); | |
e96da42b BC |
806 | } else { |
807 | /* | |
808 | * For infrastructure BSS, send only the Commit | |
809 | * message now to get alternating sequence of | |
810 | * Authentication frames between the AP and STA. | |
811 | * Confirm will be sent in | |
746e5c25 | 812 | * Committed -> Confirmed/Accepted transition |
e96da42b BC |
813 | * when receiving Confirm from STA. |
814 | */ | |
815 | } | |
f3b8ad4d BC |
816 | sta->sae->sync = 0; |
817 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
818 | } else { |
819 | hostapd_logger(hapd, sta->addr, | |
820 | HOSTAPD_MODULE_IEEE80211, | |
821 | HOSTAPD_LEVEL_DEBUG, | |
822 | "SAE confirm before commit"); | |
823 | } | |
824 | break; | |
825 | case SAE_COMMITTED: | |
f3b8ad4d | 826 | sae_clear_retransmit_timer(hapd, sta); |
e96da42b BC |
827 | if (auth_transaction == 1) { |
828 | if (sae_process_commit(sta->sae) < 0) | |
829 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
830 | ||
831 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
832 | if (ret) | |
833 | return ret; | |
9249afc8 | 834 | sae_set_state(sta, SAE_CONFIRMED, "Sent Confirm"); |
f3b8ad4d BC |
835 | sta->sae->sync = 0; |
836 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
837 | } else if (hapd->conf->mesh & MESH_ENABLED) { |
838 | /* | |
839 | * In mesh case, follow SAE finite state machine and | |
f3b8ad4d | 840 | * send Commit now, if sync count allows. |
e96da42b | 841 | */ |
d8b841eb | 842 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
843 | return WLAN_STATUS_SUCCESS; |
844 | sta->sae->sync++; | |
845 | ||
fabc6dd8 | 846 | ret = auth_sae_send_commit(hapd, sta, bssid, 0); |
e96da42b BC |
847 | if (ret) |
848 | return ret; | |
f3b8ad4d BC |
849 | |
850 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
851 | } else { |
852 | /* | |
853 | * For instructure BSS, send the postponed Confirm from | |
854 | * Nothing -> Confirmed transition that was reduced to | |
855 | * Nothing -> Committed above. | |
856 | */ | |
857 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
858 | if (ret) | |
859 | return ret; | |
860 | ||
9249afc8 | 861 | sae_set_state(sta, SAE_CONFIRMED, "Sent Confirm"); |
e96da42b BC |
862 | |
863 | /* | |
864 | * Since this was triggered on Confirm RX, run another | |
865 | * step to get to Accepted without waiting for | |
866 | * additional events. | |
867 | */ | |
f2143615 | 868 | return sae_sm_step(hapd, sta, bssid, auth_transaction, |
10cf866b | 869 | 0, sta_removed); |
e96da42b BC |
870 | } |
871 | break; | |
872 | case SAE_CONFIRMED: | |
f3b8ad4d | 873 | sae_clear_retransmit_timer(hapd, sta); |
e96da42b | 874 | if (auth_transaction == 1) { |
d8b841eb | 875 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
876 | return WLAN_STATUS_SUCCESS; |
877 | sta->sae->sync++; | |
878 | ||
872b7545 | 879 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); |
e96da42b BC |
880 | if (ret) |
881 | return ret; | |
882 | ||
883 | if (sae_process_commit(sta->sae) < 0) | |
884 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
885 | ||
886 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
887 | if (ret) | |
888 | return ret; | |
f3b8ad4d BC |
889 | |
890 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b | 891 | } else { |
c4fc7e31 | 892 | sta->sae->send_confirm = 0xffff; |
9f2cf23e | 893 | sae_accept_sta(hapd, sta); |
e96da42b BC |
894 | } |
895 | break; | |
896 | case SAE_ACCEPTED: | |
e8d08cf3 JM |
897 | if (auth_transaction == 1 && |
898 | (hapd->conf->mesh & MESH_ENABLED)) { | |
e96da42b BC |
899 | wpa_printf(MSG_DEBUG, "SAE: remove the STA (" MACSTR |
900 | ") doing reauthentication", | |
901 | MAC2STR(sta->addr)); | |
9f2cf23e | 902 | wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr); |
153d4c50 | 903 | ap_free_sta(hapd, sta); |
10cf866b | 904 | *sta_removed = 1; |
e8d08cf3 JM |
905 | } else if (auth_transaction == 1) { |
906 | wpa_printf(MSG_DEBUG, "SAE: Start reauthentication"); | |
907 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); | |
908 | if (ret) | |
909 | return ret; | |
910 | sae_set_state(sta, SAE_COMMITTED, "Sent Commit"); | |
911 | ||
912 | if (sae_process_commit(sta->sae) < 0) | |
913 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
914 | sta->sae->sync = 0; | |
915 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b | 916 | } else { |
d8b841eb | 917 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
918 | return WLAN_STATUS_SUCCESS; |
919 | sta->sae->sync++; | |
920 | ||
e96da42b BC |
921 | ret = auth_sae_send_confirm(hapd, sta, bssid); |
922 | sae_clear_temp_data(sta->sae); | |
923 | if (ret) | |
924 | return ret; | |
925 | } | |
926 | break; | |
927 | default: | |
928 | wpa_printf(MSG_ERROR, "SAE: invalid state %d", | |
929 | sta->sae->state); | |
930 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
931 | } | |
932 | return WLAN_STATUS_SUCCESS; | |
933 | } | |
934 | ||
935 | ||
dad01292 JM |
936 | static void sae_pick_next_group(struct hostapd_data *hapd, struct sta_info *sta) |
937 | { | |
938 | struct sae_data *sae = sta->sae; | |
939 | int i, *groups = hapd->conf->sae_groups; | |
941bad5e | 940 | int default_groups[] = { 19, 0 }; |
dad01292 JM |
941 | |
942 | if (sae->state != SAE_COMMITTED) | |
943 | return; | |
944 | ||
945 | wpa_printf(MSG_DEBUG, "SAE: Previously selected group: %d", sae->group); | |
946 | ||
941bad5e JM |
947 | if (!groups) |
948 | groups = default_groups; | |
949 | for (i = 0; groups[i] > 0; i++) { | |
dad01292 JM |
950 | if (sae->group == groups[i]) |
951 | break; | |
952 | } | |
953 | ||
941bad5e | 954 | if (groups[i] <= 0) { |
dad01292 JM |
955 | wpa_printf(MSG_DEBUG, |
956 | "SAE: Previously selected group not found from the current configuration"); | |
957 | return; | |
958 | } | |
959 | ||
960 | for (;;) { | |
961 | i++; | |
962 | if (groups[i] <= 0) { | |
963 | wpa_printf(MSG_DEBUG, | |
964 | "SAE: No alternative group enabled"); | |
965 | return; | |
966 | } | |
967 | ||
968 | if (sae_set_group(sae, groups[i]) < 0) | |
969 | continue; | |
970 | ||
971 | break; | |
972 | } | |
973 | wpa_printf(MSG_DEBUG, "SAE: Selected new group: %d", groups[i]); | |
974 | } | |
975 | ||
976 | ||
c10347f2 JM |
977 | static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta, |
978 | const struct ieee80211_mgmt *mgmt, size_t len, | |
afa2ffb4 | 979 | u16 auth_transaction, u16 status_code) |
c10347f2 | 980 | { |
bb598c3b | 981 | int resp = WLAN_STATUS_SUCCESS; |
750efe6e | 982 | struct wpabuf *data = NULL; |
941bad5e JM |
983 | int *groups = hapd->conf->sae_groups; |
984 | int default_groups[] = { 19, 0 }; | |
96d6dfa8 | 985 | const u8 *pos, *end; |
10cf866b | 986 | int sta_removed = 0; |
941bad5e JM |
987 | |
988 | if (!groups) | |
989 | groups = default_groups; | |
c10347f2 | 990 | |
e7533538 JM |
991 | #ifdef CONFIG_TESTING_OPTIONS |
992 | if (hapd->conf->sae_reflection_attack && auth_transaction == 1) { | |
e7533538 JM |
993 | wpa_printf(MSG_DEBUG, "SAE: TESTING - reflection attack"); |
994 | pos = mgmt->u.auth.variable; | |
995 | end = ((const u8 *) mgmt) + len; | |
996 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
e7525a29 BG |
997 | auth_transaction, resp, pos, end - pos, |
998 | "auth-sae-reflection-attack"); | |
e7533538 JM |
999 | goto remove_sta; |
1000 | } | |
3648d8a1 JM |
1001 | |
1002 | if (hapd->conf->sae_commit_override && auth_transaction == 1) { | |
1003 | wpa_printf(MSG_DEBUG, "SAE: TESTING - commit override"); | |
1004 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
1005 | auth_transaction, resp, | |
1006 | wpabuf_head(hapd->conf->sae_commit_override), | |
e7525a29 BG |
1007 | wpabuf_len(hapd->conf->sae_commit_override), |
1008 | "sae-commit-override"); | |
3648d8a1 JM |
1009 | goto remove_sta; |
1010 | } | |
e7533538 | 1011 | #endif /* CONFIG_TESTING_OPTIONS */ |
98efcc41 | 1012 | if (!sta->sae) { |
bb598c3b AB |
1013 | if (auth_transaction != 1 || |
1014 | status_code != WLAN_STATUS_SUCCESS) { | |
1015 | resp = -1; | |
1016 | goto remove_sta; | |
1017 | } | |
98efcc41 | 1018 | sta->sae = os_zalloc(sizeof(*sta->sae)); |
bb598c3b AB |
1019 | if (!sta->sae) { |
1020 | resp = -1; | |
1021 | goto remove_sta; | |
1022 | } | |
9249afc8 | 1023 | sae_set_state(sta, SAE_NOTHING, "Init"); |
f3b8ad4d | 1024 | sta->sae->sync = 0; |
98efcc41 JM |
1025 | } |
1026 | ||
9f2cf23e MH |
1027 | if (sta->mesh_sae_pmksa_caching) { |
1028 | wpa_printf(MSG_DEBUG, | |
1029 | "SAE: Cancel use of mesh PMKSA caching because peer starts SAE authentication"); | |
1030 | wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr); | |
1031 | sta->mesh_sae_pmksa_caching = 0; | |
1032 | } | |
1033 | ||
c10347f2 | 1034 | if (auth_transaction == 1) { |
96d6dfa8 | 1035 | const u8 *token = NULL; |
d136c376 | 1036 | size_t token_len = 0; |
f2143615 JM |
1037 | int allow_reuse = 0; |
1038 | ||
c10347f2 JM |
1039 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1040 | HOSTAPD_LEVEL_DEBUG, | |
9c951244 AK |
1041 | "start SAE authentication (RX commit, status=%u (%s))", |
1042 | status_code, status2str(status_code)); | |
872b7545 MH |
1043 | |
1044 | if ((hapd->conf->mesh & MESH_ENABLED) && | |
afa2ffb4 JM |
1045 | status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ && |
1046 | sta->sae->tmp) { | |
a959a3b6 MH |
1047 | pos = mgmt->u.auth.variable; |
1048 | end = ((const u8 *) mgmt) + len; | |
1049 | if (pos + sizeof(le16) > end) { | |
1050 | wpa_printf(MSG_ERROR, | |
1051 | "SAE: Too short anti-clogging token request"); | |
1052 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1053 | goto reply; | |
1054 | } | |
941bad5e | 1055 | resp = sae_group_allowed(sta->sae, groups, |
a959a3b6 MH |
1056 | WPA_GET_LE16(pos)); |
1057 | if (resp != WLAN_STATUS_SUCCESS) { | |
1058 | wpa_printf(MSG_ERROR, | |
1059 | "SAE: Invalid group in anti-clogging token request"); | |
1060 | goto reply; | |
1061 | } | |
1062 | pos += sizeof(le16); | |
1063 | ||
872b7545 MH |
1064 | wpabuf_free(sta->sae->tmp->anti_clogging_token); |
1065 | sta->sae->tmp->anti_clogging_token = | |
a959a3b6 | 1066 | wpabuf_alloc_copy(pos, end - pos); |
872b7545 MH |
1067 | if (sta->sae->tmp->anti_clogging_token == NULL) { |
1068 | wpa_printf(MSG_ERROR, | |
1069 | "SAE: Failed to alloc for anti-clogging token"); | |
bb598c3b AB |
1070 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1071 | goto remove_sta; | |
872b7545 MH |
1072 | } |
1073 | ||
1074 | /* | |
1075 | * IEEE Std 802.11-2012, 11.3.8.6.4: If the Status code | |
1076 | * is 76, a new Commit Message shall be constructed | |
1077 | * with the Anti-Clogging Token from the received | |
1078 | * Authentication frame, and the commit-scalar and | |
1079 | * COMMIT-ELEMENT previously sent. | |
1080 | */ | |
bb598c3b AB |
1081 | resp = auth_sae_send_commit(hapd, sta, mgmt->bssid, 0); |
1082 | if (resp != WLAN_STATUS_SUCCESS) { | |
872b7545 MH |
1083 | wpa_printf(MSG_ERROR, |
1084 | "SAE: Failed to send commit message"); | |
bb598c3b | 1085 | goto remove_sta; |
872b7545 | 1086 | } |
9249afc8 JM |
1087 | sae_set_state(sta, SAE_COMMITTED, |
1088 | "Sent Commit (anti-clogging token case in mesh)"); | |
f3b8ad4d BC |
1089 | sta->sae->sync = 0; |
1090 | sae_set_retransmit_timer(hapd, sta); | |
872b7545 MH |
1091 | return; |
1092 | } | |
1093 | ||
dad01292 JM |
1094 | if ((hapd->conf->mesh & MESH_ENABLED) && |
1095 | status_code == | |
1096 | WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED && | |
1097 | sta->sae->tmp) { | |
1098 | wpa_printf(MSG_DEBUG, | |
1099 | "SAE: Peer did not accept our SAE group"); | |
1100 | sae_pick_next_group(hapd, sta); | |
1101 | goto remove_sta; | |
1102 | } | |
1103 | ||
afa2ffb4 | 1104 | if (status_code != WLAN_STATUS_SUCCESS) |
bb598c3b | 1105 | goto remove_sta; |
afa2ffb4 | 1106 | |
3a8dd390 JM |
1107 | if (!(hapd->conf->mesh & MESH_ENABLED) && |
1108 | sta->sae->state == SAE_COMMITTED) { | |
1109 | /* This is needed in the infrastructure BSS case to | |
1110 | * address a sequence where a STA entry may remain in | |
1111 | * hostapd across two attempts to do SAE authentication | |
1112 | * by the same STA. The second attempt may end up trying | |
1113 | * to use a different group and that would not be | |
1114 | * allowed if we remain in Committed state with the | |
1115 | * previously set parameters. */ | |
f2143615 JM |
1116 | pos = mgmt->u.auth.variable; |
1117 | end = ((const u8 *) mgmt) + len; | |
1118 | if (end - pos >= (int) sizeof(le16) && | |
1119 | sae_group_allowed(sta->sae, groups, | |
1120 | WPA_GET_LE16(pos)) == | |
1121 | WLAN_STATUS_SUCCESS) { | |
1122 | /* Do not waste resources deriving the same PWE | |
1123 | * again since the same group is reused. */ | |
1124 | sae_set_state(sta, SAE_NOTHING, | |
1125 | "Allow previous PWE to be reused"); | |
1126 | allow_reuse = 1; | |
1127 | } else { | |
1128 | sae_set_state(sta, SAE_NOTHING, | |
1129 | "Clear existing state to allow restart"); | |
1130 | sae_clear_data(sta->sae); | |
1131 | } | |
3a8dd390 JM |
1132 | } |
1133 | ||
146f6c9a JM |
1134 | resp = sae_parse_commit(sta->sae, mgmt->u.auth.variable, |
1135 | ((const u8 *) mgmt) + len - | |
d136c376 | 1136 | mgmt->u.auth.variable, &token, |
941bad5e | 1137 | &token_len, groups); |
6a58444d JM |
1138 | if (resp == SAE_SILENTLY_DISCARD) { |
1139 | wpa_printf(MSG_DEBUG, | |
1140 | "SAE: Drop commit message from " MACSTR " due to reflection attack", | |
1141 | MAC2STR(sta->addr)); | |
bb598c3b | 1142 | goto remove_sta; |
6a58444d | 1143 | } |
9be19d0b JM |
1144 | |
1145 | if (resp == WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER) { | |
1146 | wpa_msg(hapd->msg_ctx, MSG_INFO, | |
1147 | WPA_EVENT_SAE_UNKNOWN_PASSWORD_IDENTIFIER | |
1148 | MACSTR, MAC2STR(sta->addr)); | |
1149 | sae_clear_retransmit_timer(hapd, sta); | |
1150 | sae_set_state(sta, SAE_NOTHING, | |
1151 | "Unknown Password Identifier"); | |
1152 | goto remove_sta; | |
1153 | } | |
1154 | ||
d136c376 JM |
1155 | if (token && check_sae_token(hapd, sta->addr, token, token_len) |
1156 | < 0) { | |
1157 | wpa_printf(MSG_DEBUG, "SAE: Drop commit message with " | |
1158 | "incorrect token from " MACSTR, | |
1159 | MAC2STR(sta->addr)); | |
bb598c3b AB |
1160 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1161 | goto remove_sta; | |
d136c376 JM |
1162 | } |
1163 | ||
e96da42b BC |
1164 | if (resp != WLAN_STATUS_SUCCESS) |
1165 | goto reply; | |
1166 | ||
f2143615 | 1167 | if (!token && use_sae_anti_clogging(hapd) && !allow_reuse) { |
e96da42b BC |
1168 | wpa_printf(MSG_DEBUG, |
1169 | "SAE: Request anti-clogging token from " | |
1170 | MACSTR, MAC2STR(sta->addr)); | |
a959a3b6 MH |
1171 | data = auth_build_token_req(hapd, sta->sae->group, |
1172 | sta->addr); | |
e96da42b | 1173 | resp = WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ; |
872b7545 | 1174 | if (hapd->conf->mesh & MESH_ENABLED) |
9249afc8 JM |
1175 | sae_set_state(sta, SAE_NOTHING, |
1176 | "Request anti-clogging token case in mesh"); | |
e96da42b | 1177 | goto reply; |
750efe6e | 1178 | } |
e96da42b | 1179 | |
f2143615 | 1180 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction, |
10cf866b | 1181 | allow_reuse, &sta_removed); |
c10347f2 | 1182 | } else if (auth_transaction == 2) { |
c10347f2 JM |
1183 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1184 | HOSTAPD_LEVEL_DEBUG, | |
9c951244 AK |
1185 | "SAE authentication (RX confirm, status=%u (%s))", |
1186 | status_code, status2str(status_code)); | |
afa2ffb4 | 1187 | if (status_code != WLAN_STATUS_SUCCESS) |
bb598c3b | 1188 | goto remove_sta; |
e96da42b BC |
1189 | if (sta->sae->state >= SAE_CONFIRMED || |
1190 | !(hapd->conf->mesh & MESH_ENABLED)) { | |
abcbd060 JM |
1191 | const u8 *var; |
1192 | size_t var_len; | |
1193 | u16 peer_send_confirm; | |
1194 | ||
1195 | var = mgmt->u.auth.variable; | |
1196 | var_len = ((u8 *) mgmt) + len - mgmt->u.auth.variable; | |
1197 | if (var_len < 2) { | |
1198 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1199 | goto reply; | |
1200 | } | |
1201 | ||
1202 | peer_send_confirm = WPA_GET_LE16(var); | |
1203 | ||
1204 | if (sta->sae->state == SAE_ACCEPTED && | |
1205 | (peer_send_confirm <= sta->sae->rc || | |
1206 | peer_send_confirm == 0xffff)) { | |
1207 | wpa_printf(MSG_DEBUG, | |
1208 | "SAE: Silently ignore unexpected Confirm from peer " | |
1209 | MACSTR | |
1210 | " (peer-send-confirm=%u Rc=%u)", | |
1211 | MAC2STR(sta->addr), | |
1212 | peer_send_confirm, sta->sae->rc); | |
1213 | return; | |
1214 | } | |
1215 | ||
1216 | if (sae_check_confirm(sta->sae, var, var_len) < 0) { | |
750efe6e | 1217 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
e96da42b | 1218 | goto reply; |
b4fd3613 | 1219 | } |
abcbd060 | 1220 | sta->sae->rc = peer_send_confirm; |
21af6d15 | 1221 | } |
10cf866b JM |
1222 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction, 0, |
1223 | &sta_removed); | |
c10347f2 JM |
1224 | } else { |
1225 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1226 | HOSTAPD_LEVEL_DEBUG, | |
9c951244 AK |
1227 | "unexpected SAE authentication transaction %u (status=%u (%s))", |
1228 | auth_transaction, status_code, | |
1229 | status2str(status_code)); | |
afa2ffb4 | 1230 | if (status_code != WLAN_STATUS_SUCCESS) |
bb598c3b | 1231 | goto remove_sta; |
c10347f2 JM |
1232 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
1233 | } | |
1234 | ||
e96da42b | 1235 | reply: |
10cf866b | 1236 | if (!sta_removed && resp != WLAN_STATUS_SUCCESS) { |
96d6dfa8 JM |
1237 | pos = mgmt->u.auth.variable; |
1238 | end = ((const u8 *) mgmt) + len; | |
1239 | ||
1240 | /* Copy the Finite Cyclic Group field from the request if we | |
1241 | * rejected it as unsupported group. */ | |
1242 | if (resp == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED && | |
1243 | !data && end - pos >= 2) | |
1244 | data = wpabuf_alloc_copy(pos, 2); | |
1245 | ||
4ffb0fef | 1246 | sae_sme_send_external_auth_status(hapd, sta, resp); |
e96da42b BC |
1247 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, |
1248 | auth_transaction, resp, | |
1249 | data ? wpabuf_head(data) : (u8 *) "", | |
e7525a29 | 1250 | data ? wpabuf_len(data) : 0, "auth-sae"); |
e96da42b | 1251 | } |
bb598c3b AB |
1252 | |
1253 | remove_sta: | |
10cf866b JM |
1254 | if (!sta_removed && sta->added_unassoc && |
1255 | (resp != WLAN_STATUS_SUCCESS || | |
1256 | status_code != WLAN_STATUS_SUCCESS)) { | |
bb598c3b AB |
1257 | hostapd_drv_sta_remove(hapd, sta->addr); |
1258 | sta->added_unassoc = 0; | |
1259 | } | |
21af6d15 | 1260 | wpabuf_free(data); |
c10347f2 | 1261 | } |
a206e2a1 BC |
1262 | |
1263 | ||
1264 | /** | |
1265 | * auth_sae_init_committed - Send COMMIT and start SAE in committed state | |
1266 | * @hapd: BSS data for the device initiating the authentication | |
1267 | * @sta: the peer to which commit authentication frame is sent | |
1268 | * | |
1269 | * This function implements Init event handling (IEEE Std 802.11-2012, | |
1270 | * 11.3.8.6.3) in which initial COMMIT message is sent. Prior to calling, the | |
1271 | * sta->sae structure should be initialized appropriately via a call to | |
1272 | * sae_prepare_commit(). | |
1273 | */ | |
1274 | int auth_sae_init_committed(struct hostapd_data *hapd, struct sta_info *sta) | |
1275 | { | |
1276 | int ret; | |
1277 | ||
1278 | if (!sta->sae || !sta->sae->tmp) | |
1279 | return -1; | |
1280 | ||
1281 | if (sta->sae->state != SAE_NOTHING) | |
1282 | return -1; | |
1283 | ||
1284 | ret = auth_sae_send_commit(hapd, sta, hapd->own_addr, 0); | |
1285 | if (ret) | |
1286 | return -1; | |
1287 | ||
9249afc8 | 1288 | sae_set_state(sta, SAE_COMMITTED, "Init and sent commit"); |
f3b8ad4d BC |
1289 | sta->sae->sync = 0; |
1290 | sae_set_retransmit_timer(hapd, sta); | |
a206e2a1 BC |
1291 | |
1292 | return 0; | |
1293 | } | |
1294 | ||
ff9f40ae JM |
1295 | |
1296 | void auth_sae_process_commit(void *eloop_ctx, void *user_ctx) | |
1297 | { | |
1298 | struct hostapd_data *hapd = eloop_ctx; | |
1299 | struct hostapd_sae_commit_queue *q; | |
1300 | unsigned int queue_len; | |
1301 | ||
1302 | q = dl_list_first(&hapd->sae_commit_queue, | |
1303 | struct hostapd_sae_commit_queue, list); | |
1304 | if (!q) | |
1305 | return; | |
1306 | wpa_printf(MSG_DEBUG, | |
5e3a759c | 1307 | "SAE: Process next available message from queue"); |
ff9f40ae JM |
1308 | dl_list_del(&q->list); |
1309 | handle_auth(hapd, (const struct ieee80211_mgmt *) q->msg, q->len, | |
1310 | q->rssi, 1); | |
1311 | os_free(q); | |
1312 | ||
1313 | if (eloop_is_timeout_registered(auth_sae_process_commit, hapd, NULL)) | |
1314 | return; | |
1315 | queue_len = dl_list_len(&hapd->sae_commit_queue); | |
ff5f54e1 | 1316 | eloop_register_timeout(0, queue_len * 10000, auth_sae_process_commit, |
ff9f40ae JM |
1317 | hapd, NULL); |
1318 | } | |
1319 | ||
1320 | ||
5e3a759c JM |
1321 | static void auth_sae_queue(struct hostapd_data *hapd, |
1322 | const struct ieee80211_mgmt *mgmt, size_t len, | |
1323 | int rssi) | |
ff9f40ae | 1324 | { |
5e3a759c | 1325 | struct hostapd_sae_commit_queue *q, *q2; |
ff9f40ae | 1326 | unsigned int queue_len; |
5e3a759c | 1327 | const struct ieee80211_mgmt *mgmt2; |
ff9f40ae JM |
1328 | |
1329 | queue_len = dl_list_len(&hapd->sae_commit_queue); | |
1330 | if (queue_len >= 15) { | |
1331 | wpa_printf(MSG_DEBUG, | |
5e3a759c | 1332 | "SAE: No more room in message queue - drop the new frame from " |
ff9f40ae JM |
1333 | MACSTR, MAC2STR(mgmt->sa)); |
1334 | return; | |
1335 | } | |
1336 | ||
5e3a759c JM |
1337 | wpa_printf(MSG_DEBUG, "SAE: Queue Authentication message from " |
1338 | MACSTR " for processing (queue_len %u)", MAC2STR(mgmt->sa), | |
1339 | queue_len); | |
ff9f40ae JM |
1340 | q = os_zalloc(sizeof(*q) + len); |
1341 | if (!q) | |
1342 | return; | |
1343 | q->rssi = rssi; | |
1344 | q->len = len; | |
1345 | os_memcpy(q->msg, mgmt, len); | |
5e3a759c JM |
1346 | |
1347 | /* Check whether there is already a queued Authentication frame from the | |
1348 | * same station with the same transaction number and if so, replace that | |
1349 | * queue entry with the new one. This avoids issues with a peer that | |
1350 | * sends multiple times (e.g., due to frequent SAE retries). There is no | |
1351 | * point in us trying to process the old attempts after a new one has | |
1352 | * obsoleted them. */ | |
1353 | dl_list_for_each(q2, &hapd->sae_commit_queue, | |
1354 | struct hostapd_sae_commit_queue, list) { | |
1355 | mgmt2 = (const struct ieee80211_mgmt *) q2->msg; | |
1356 | if (os_memcmp(mgmt->sa, mgmt2->sa, ETH_ALEN) == 0 && | |
1357 | mgmt->u.auth.auth_transaction == | |
1358 | mgmt2->u.auth.auth_transaction) { | |
1359 | wpa_printf(MSG_DEBUG, | |
1360 | "SAE: Replace queued message from same STA with same transaction number"); | |
1361 | dl_list_add(&q2->list, &q->list); | |
1362 | dl_list_del(&q2->list); | |
1363 | os_free(q2); | |
1364 | goto queued; | |
1365 | } | |
1366 | } | |
1367 | ||
1368 | /* No pending identical entry, so add to the end of the queue */ | |
ff9f40ae | 1369 | dl_list_add_tail(&hapd->sae_commit_queue, &q->list); |
5e3a759c JM |
1370 | |
1371 | queued: | |
ff9f40ae JM |
1372 | if (eloop_is_timeout_registered(auth_sae_process_commit, hapd, NULL)) |
1373 | return; | |
ff5f54e1 | 1374 | eloop_register_timeout(0, queue_len * 10000, auth_sae_process_commit, |
ff9f40ae JM |
1375 | hapd, NULL); |
1376 | } | |
1377 | ||
5e3a759c JM |
1378 | |
1379 | static int auth_sae_queued_addr(struct hostapd_data *hapd, const u8 *addr) | |
1380 | { | |
1381 | struct hostapd_sae_commit_queue *q; | |
1382 | const struct ieee80211_mgmt *mgmt; | |
1383 | ||
1384 | dl_list_for_each(q, &hapd->sae_commit_queue, | |
1385 | struct hostapd_sae_commit_queue, list) { | |
1386 | mgmt = (const struct ieee80211_mgmt *) q->msg; | |
1387 | if (os_memcmp(addr, mgmt->sa, ETH_ALEN) == 0) | |
1388 | return 1; | |
1389 | } | |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
c10347f2 JM |
1394 | #endif /* CONFIG_SAE */ |
1395 | ||
1396 | ||
ffb62f22 JM |
1397 | static u16 wpa_res_to_status_code(int res) |
1398 | { | |
1399 | if (res == WPA_INVALID_GROUP) | |
1400 | return WLAN_STATUS_GROUP_CIPHER_NOT_VALID; | |
1401 | if (res == WPA_INVALID_PAIRWISE) | |
1402 | return WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; | |
1403 | if (res == WPA_INVALID_AKMP) | |
1404 | return WLAN_STATUS_AKMP_NOT_VALID; | |
1405 | if (res == WPA_ALLOC_FAIL) | |
1406 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1407 | #ifdef CONFIG_IEEE80211W | |
1408 | if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) | |
1409 | return WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; | |
1410 | if (res == WPA_INVALID_MGMT_GROUP_CIPHER) | |
feba5848 | 1411 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; |
ffb62f22 JM |
1412 | #endif /* CONFIG_IEEE80211W */ |
1413 | if (res == WPA_INVALID_MDIE) | |
1414 | return WLAN_STATUS_INVALID_MDIE; | |
567da5bb JM |
1415 | if (res == WPA_INVALID_PMKID) |
1416 | return WLAN_STATUS_INVALID_PMKID; | |
ffb62f22 JM |
1417 | if (res != WPA_IE_OK) |
1418 | return WLAN_STATUS_INVALID_IE; | |
1419 | return WLAN_STATUS_SUCCESS; | |
1420 | } | |
1421 | ||
1422 | ||
c4fd6d8a JM |
1423 | #ifdef CONFIG_FILS |
1424 | ||
1425 | static void handle_auth_fils_finish(struct hostapd_data *hapd, | |
1426 | struct sta_info *sta, u16 resp, | |
5cee22ca JM |
1427 | struct wpabuf *data, int pub); |
1428 | ||
1429 | void handle_auth_fils(struct hostapd_data *hapd, struct sta_info *sta, | |
1430 | const u8 *pos, size_t len, u16 auth_alg, | |
1431 | u16 auth_transaction, u16 status_code, | |
1432 | void (*cb)(struct hostapd_data *hapd, | |
1433 | struct sta_info *sta, u16 resp, | |
1434 | struct wpabuf *data, int pub)) | |
c4fd6d8a JM |
1435 | { |
1436 | u16 resp = WLAN_STATUS_SUCCESS; | |
b8a3453a | 1437 | const u8 *end; |
c4fd6d8a JM |
1438 | struct ieee802_11_elems elems; |
1439 | int res; | |
1440 | struct wpa_ie_data rsn; | |
1441 | struct rsn_pmksa_cache_entry *pmksa = NULL; | |
1442 | ||
1443 | if (auth_transaction != 1 || status_code != WLAN_STATUS_SUCCESS) | |
1444 | return; | |
1445 | ||
b8a3453a | 1446 | end = pos + len; |
c4fd6d8a JM |
1447 | |
1448 | wpa_hexdump(MSG_DEBUG, "FILS: Authentication frame fields", | |
1449 | pos, end - pos); | |
1450 | ||
1764559e JM |
1451 | /* TODO: FILS PK */ |
1452 | #ifdef CONFIG_FILS_SK_PFS | |
1453 | if (auth_alg == WLAN_AUTH_FILS_SK_PFS) { | |
1454 | u16 group; | |
1455 | struct wpabuf *pub; | |
1456 | size_t elem_len; | |
1457 | ||
1458 | /* Using FILS PFS */ | |
1459 | ||
1460 | /* Finite Cyclic Group */ | |
1461 | if (end - pos < 2) { | |
1462 | wpa_printf(MSG_DEBUG, | |
1463 | "FILS: No room for Finite Cyclic Group"); | |
1464 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1465 | goto fail; | |
1466 | } | |
1467 | group = WPA_GET_LE16(pos); | |
1468 | pos += 2; | |
1469 | if (group != hapd->conf->fils_dh_group) { | |
1470 | wpa_printf(MSG_DEBUG, | |
1471 | "FILS: Unsupported Finite Cyclic Group: %u (expected %u)", | |
1472 | group, hapd->conf->fils_dh_group); | |
1473 | resp = WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
1474 | goto fail; | |
1475 | } | |
1476 | ||
1477 | crypto_ecdh_deinit(sta->fils_ecdh); | |
1478 | sta->fils_ecdh = crypto_ecdh_init(group); | |
1479 | if (!sta->fils_ecdh) { | |
1480 | wpa_printf(MSG_INFO, | |
1481 | "FILS: Could not initialize ECDH with group %d", | |
1482 | group); | |
1483 | resp = WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
1484 | goto fail; | |
1485 | } | |
1486 | ||
1487 | pub = crypto_ecdh_get_pubkey(sta->fils_ecdh, 1); | |
1488 | if (!pub) { | |
1489 | wpa_printf(MSG_DEBUG, | |
1490 | "FILS: Failed to derive ECDH public key"); | |
1491 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1492 | goto fail; | |
1493 | } | |
1494 | elem_len = wpabuf_len(pub); | |
1495 | wpabuf_free(pub); | |
1496 | ||
1497 | /* Element */ | |
1498 | if ((size_t) (end - pos) < elem_len) { | |
1499 | wpa_printf(MSG_DEBUG, "FILS: No room for Element"); | |
1500 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1501 | goto fail; | |
1502 | } | |
1503 | ||
80ddf5d9 JM |
1504 | wpabuf_free(sta->fils_g_sta); |
1505 | sta->fils_g_sta = wpabuf_alloc_copy(pos, elem_len); | |
1764559e JM |
1506 | wpabuf_clear_free(sta->fils_dh_ss); |
1507 | sta->fils_dh_ss = crypto_ecdh_set_peerkey(sta->fils_ecdh, 1, | |
1508 | pos, elem_len); | |
1509 | if (!sta->fils_dh_ss) { | |
1510 | wpa_printf(MSG_DEBUG, "FILS: ECDH operation failed"); | |
1511 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1512 | goto fail; | |
1513 | } | |
1514 | wpa_hexdump_buf_key(MSG_DEBUG, "FILS: DH_SS", sta->fils_dh_ss); | |
1515 | pos += elem_len; | |
1516 | } else { | |
1517 | crypto_ecdh_deinit(sta->fils_ecdh); | |
1518 | sta->fils_ecdh = NULL; | |
1519 | wpabuf_clear_free(sta->fils_dh_ss); | |
1520 | sta->fils_dh_ss = NULL; | |
1521 | } | |
1522 | #endif /* CONFIG_FILS_SK_PFS */ | |
c4fd6d8a JM |
1523 | |
1524 | wpa_hexdump(MSG_DEBUG, "FILS: Remaining IEs", pos, end - pos); | |
1525 | if (ieee802_11_parse_elems(pos, end - pos, &elems, 1) == ParseFailed) { | |
1526 | wpa_printf(MSG_DEBUG, "FILS: Could not parse elements"); | |
1527 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1528 | goto fail; | |
1529 | } | |
1530 | ||
1531 | /* RSNE */ | |
1532 | wpa_hexdump(MSG_DEBUG, "FILS: RSN element", | |
1533 | elems.rsn_ie, elems.rsn_ie_len); | |
1534 | if (!elems.rsn_ie || | |
1535 | wpa_parse_wpa_ie_rsn(elems.rsn_ie - 2, elems.rsn_ie_len + 2, | |
1536 | &rsn) < 0) { | |
1537 | wpa_printf(MSG_DEBUG, "FILS: No valid RSN element"); | |
1538 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1539 | goto fail; | |
1540 | } | |
1541 | ||
1542 | if (!sta->wpa_sm) | |
1543 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, | |
1544 | NULL); | |
1545 | if (!sta->wpa_sm) { | |
1546 | wpa_printf(MSG_DEBUG, | |
1547 | "FILS: Failed to initialize RSN state machine"); | |
1548 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1549 | goto fail; | |
1550 | } | |
1551 | ||
1552 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
2c129a1b | 1553 | hapd->iface->freq, |
c4fd6d8a | 1554 | elems.rsn_ie - 2, elems.rsn_ie_len + 2, |
09368515 | 1555 | elems.mdie, elems.mdie_len, NULL, 0); |
c4fd6d8a JM |
1556 | resp = wpa_res_to_status_code(res); |
1557 | if (resp != WLAN_STATUS_SUCCESS) | |
1558 | goto fail; | |
1559 | ||
c4fd6d8a JM |
1560 | if (!elems.fils_nonce) { |
1561 | wpa_printf(MSG_DEBUG, "FILS: No FILS Nonce field"); | |
1562 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1563 | goto fail; | |
1564 | } | |
1565 | wpa_hexdump(MSG_DEBUG, "FILS: SNonce", elems.fils_nonce, | |
1566 | FILS_NONCE_LEN); | |
1567 | os_memcpy(sta->fils_snonce, elems.fils_nonce, FILS_NONCE_LEN); | |
1568 | ||
1569 | /* PMKID List */ | |
1570 | if (rsn.pmkid && rsn.num_pmkid > 0) { | |
1571 | u8 num; | |
1572 | const u8 *pmkid; | |
1573 | ||
1574 | wpa_hexdump(MSG_DEBUG, "FILS: PMKID List", | |
1575 | rsn.pmkid, rsn.num_pmkid * PMKID_LEN); | |
1576 | ||
1577 | pmkid = rsn.pmkid; | |
1578 | num = rsn.num_pmkid; | |
1579 | while (num) { | |
1580 | wpa_hexdump(MSG_DEBUG, "FILS: PMKID", pmkid, PMKID_LEN); | |
1581 | pmksa = wpa_auth_pmksa_get(hapd->wpa_auth, sta->addr, | |
1582 | pmkid); | |
1583 | if (pmksa) | |
1584 | break; | |
7eace378 JM |
1585 | pmksa = wpa_auth_pmksa_get_fils_cache_id(hapd->wpa_auth, |
1586 | sta->addr, | |
1587 | pmkid); | |
1588 | if (pmksa) | |
1589 | break; | |
c4fd6d8a JM |
1590 | pmkid += PMKID_LEN; |
1591 | num--; | |
1592 | } | |
1593 | } | |
1594 | if (pmksa && wpa_auth_sta_key_mgmt(sta->wpa_sm) != pmksa->akmp) { | |
1595 | wpa_printf(MSG_DEBUG, | |
1596 | "FILS: Matching PMKSA cache entry has different AKMP (0x%x != 0x%x) - ignore", | |
1597 | wpa_auth_sta_key_mgmt(sta->wpa_sm), pmksa->akmp); | |
1598 | pmksa = NULL; | |
1599 | } | |
1600 | if (pmksa) | |
1601 | wpa_printf(MSG_DEBUG, "FILS: Found matching PMKSA cache entry"); | |
1602 | ||
1603 | /* FILS Session */ | |
1604 | if (!elems.fils_session) { | |
1605 | wpa_printf(MSG_DEBUG, "FILS: No FILS Session element"); | |
1606 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1607 | goto fail; | |
1608 | } | |
1609 | wpa_hexdump(MSG_DEBUG, "FILS: FILS Session", elems.fils_session, | |
1610 | FILS_SESSION_LEN); | |
1611 | os_memcpy(sta->fils_session, elems.fils_session, FILS_SESSION_LEN); | |
1612 | ||
1613 | /* FILS Wrapped Data */ | |
1614 | if (elems.fils_wrapped_data) { | |
1615 | wpa_hexdump(MSG_DEBUG, "FILS: Wrapped Data", | |
1616 | elems.fils_wrapped_data, | |
1617 | elems.fils_wrapped_data_len); | |
1618 | if (!pmksa) { | |
1619 | #ifndef CONFIG_NO_RADIUS | |
1620 | if (!sta->eapol_sm) { | |
1621 | sta->eapol_sm = | |
1622 | ieee802_1x_alloc_eapol_sm(hapd, sta); | |
1623 | } | |
1624 | wpa_printf(MSG_DEBUG, | |
bfe44833 | 1625 | "FILS: Forward EAP-Initiate/Re-auth to authentication server"); |
c4fd6d8a JM |
1626 | ieee802_1x_encapsulate_radius( |
1627 | hapd, sta, elems.fils_wrapped_data, | |
1628 | elems.fils_wrapped_data_len); | |
5cee22ca | 1629 | sta->fils_pending_cb = cb; |
c4fd6d8a JM |
1630 | wpa_printf(MSG_DEBUG, |
1631 | "FILS: Will send Authentication frame once the response from authentication server is available"); | |
1632 | sta->flags |= WLAN_STA_PENDING_FILS_ERP; | |
b3e567c8 JM |
1633 | /* Calculate pending PMKID here so that we do not need |
1634 | * to maintain a copy of the EAP-Initiate/Reauth | |
1635 | * message. */ | |
1636 | if (fils_pmkid_erp(wpa_auth_sta_key_mgmt(sta->wpa_sm), | |
1637 | elems.fils_wrapped_data, | |
1638 | elems.fils_wrapped_data_len, | |
1639 | sta->fils_erp_pmkid) == 0) | |
1640 | sta->fils_erp_pmkid_set = 1; | |
c4fd6d8a JM |
1641 | return; |
1642 | #else /* CONFIG_NO_RADIUS */ | |
1643 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1644 | goto fail; | |
1645 | #endif /* CONFIG_NO_RADIUS */ | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | fail: | |
5cee22ca JM |
1650 | if (cb) { |
1651 | struct wpabuf *data; | |
1652 | int pub = 0; | |
1653 | ||
1654 | data = prepare_auth_resp_fils(hapd, sta, &resp, pmksa, NULL, | |
1655 | NULL, 0, &pub); | |
1656 | if (!data) { | |
1657 | wpa_printf(MSG_DEBUG, | |
1658 | "%s: prepare_auth_resp_fils() returned failure", | |
1659 | __func__); | |
1660 | } | |
1661 | ||
1662 | cb(hapd, sta, resp, data, pub); | |
1663 | } | |
c4fd6d8a JM |
1664 | } |
1665 | ||
1666 | ||
5e5f8c81 JM |
1667 | static struct wpabuf * |
1668 | prepare_auth_resp_fils(struct hostapd_data *hapd, | |
1669 | struct sta_info *sta, u16 *resp, | |
1670 | struct rsn_pmksa_cache_entry *pmksa, | |
1671 | struct wpabuf *erp_resp, | |
1672 | const u8 *msk, size_t msk_len, | |
1673 | int *is_pub) | |
c4fd6d8a JM |
1674 | { |
1675 | u8 fils_nonce[FILS_NONCE_LEN]; | |
1676 | size_t ielen; | |
1677 | struct wpabuf *data = NULL; | |
1678 | const u8 *ie; | |
1679 | u8 *ie_buf = NULL; | |
1680 | const u8 *pmk = NULL; | |
1681 | size_t pmk_len = 0; | |
fcd3d6ce | 1682 | u8 pmk_buf[PMK_LEN_MAX]; |
1764559e | 1683 | struct wpabuf *pub = NULL; |
c4fd6d8a | 1684 | |
5e5f8c81 | 1685 | if (*resp != WLAN_STATUS_SUCCESS) |
c4fd6d8a JM |
1686 | goto fail; |
1687 | ||
1688 | ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &ielen); | |
1689 | if (!ie) { | |
5e5f8c81 | 1690 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1691 | goto fail; |
1692 | } | |
5e5f8c81 | 1693 | |
c4fd6d8a JM |
1694 | if (pmksa) { |
1695 | /* Add PMKID of the selected PMKSA into RSNE */ | |
1696 | ie_buf = os_malloc(ielen + 2 + 2 + PMKID_LEN); | |
1697 | if (!ie_buf) { | |
5e5f8c81 | 1698 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1699 | goto fail; |
1700 | } | |
5e5f8c81 | 1701 | |
c4fd6d8a JM |
1702 | os_memcpy(ie_buf, ie, ielen); |
1703 | if (wpa_insert_pmkid(ie_buf, &ielen, pmksa->pmkid) < 0) { | |
5e5f8c81 | 1704 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1705 | goto fail; |
1706 | } | |
1707 | ie = ie_buf; | |
1708 | } | |
1709 | ||
1710 | if (random_get_bytes(fils_nonce, FILS_NONCE_LEN) < 0) { | |
5e5f8c81 | 1711 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1712 | goto fail; |
1713 | } | |
1714 | wpa_hexdump(MSG_DEBUG, "RSN: Generated FILS Nonce", | |
1715 | fils_nonce, FILS_NONCE_LEN); | |
1716 | ||
1764559e JM |
1717 | #ifdef CONFIG_FILS_SK_PFS |
1718 | if (sta->fils_dh_ss && sta->fils_ecdh) { | |
1719 | pub = crypto_ecdh_get_pubkey(sta->fils_ecdh, 1); | |
1720 | if (!pub) { | |
5e5f8c81 | 1721 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1764559e JM |
1722 | goto fail; |
1723 | } | |
1724 | } | |
1725 | #endif /* CONFIG_FILS_SK_PFS */ | |
1726 | ||
1727 | data = wpabuf_alloc(1000 + ielen + (pub ? wpabuf_len(pub) : 0)); | |
c4fd6d8a | 1728 | if (!data) { |
5e5f8c81 | 1729 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1730 | goto fail; |
1731 | } | |
1732 | ||
1764559e JM |
1733 | /* TODO: FILS PK */ |
1734 | #ifdef CONFIG_FILS_SK_PFS | |
1735 | if (pub) { | |
1736 | /* Finite Cyclic Group */ | |
1737 | wpabuf_put_le16(data, hapd->conf->fils_dh_group); | |
1738 | ||
1739 | /* Element */ | |
1740 | wpabuf_put_buf(data, pub); | |
1741 | } | |
1742 | #endif /* CONFIG_FILS_SK_PFS */ | |
c4fd6d8a JM |
1743 | |
1744 | /* RSNE */ | |
1745 | wpabuf_put_data(data, ie, ielen); | |
1746 | ||
5db997e3 JM |
1747 | /* MDE when using FILS+FT (already included in ie,ielen with RSNE) */ |
1748 | ||
1749 | #ifdef CONFIG_IEEE80211R_AP | |
1750 | if (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm))) { | |
1751 | /* FTE[R1KH-ID,R0KH-ID] when using FILS+FT */ | |
1752 | int res; | |
a7968ea5 JM |
1753 | int use_sha384 = wpa_key_mgmt_sha384( |
1754 | wpa_auth_sta_key_mgmt(sta->wpa_sm)); | |
5db997e3 | 1755 | |
a7968ea5 JM |
1756 | res = wpa_auth_write_fte(hapd->wpa_auth, use_sha384, |
1757 | wpabuf_put(data, 0), | |
5db997e3 JM |
1758 | wpabuf_tailroom(data)); |
1759 | if (res < 0) { | |
5e5f8c81 | 1760 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
5db997e3 JM |
1761 | goto fail; |
1762 | } | |
1763 | wpabuf_put(data, res); | |
1764 | } | |
1765 | #endif /* CONFIG_IEEE80211R_AP */ | |
c4fd6d8a JM |
1766 | |
1767 | /* FILS Nonce */ | |
1768 | wpabuf_put_u8(data, WLAN_EID_EXTENSION); /* Element ID */ | |
1769 | wpabuf_put_u8(data, 1 + FILS_NONCE_LEN); /* Length */ | |
1770 | /* Element ID Extension */ | |
1771 | wpabuf_put_u8(data, WLAN_EID_EXT_FILS_NONCE); | |
1772 | wpabuf_put_data(data, fils_nonce, FILS_NONCE_LEN); | |
1773 | ||
1774 | /* FILS Session */ | |
1775 | wpabuf_put_u8(data, WLAN_EID_EXTENSION); /* Element ID */ | |
1776 | wpabuf_put_u8(data, 1 + FILS_SESSION_LEN); /* Length */ | |
1777 | /* Element ID Extension */ | |
1778 | wpabuf_put_u8(data, WLAN_EID_EXT_FILS_SESSION); | |
1779 | wpabuf_put_data(data, sta->fils_session, FILS_SESSION_LEN); | |
1780 | ||
1781 | /* FILS Wrapped Data */ | |
1782 | if (!pmksa && erp_resp) { | |
1783 | wpabuf_put_u8(data, WLAN_EID_EXTENSION); /* Element ID */ | |
1784 | wpabuf_put_u8(data, 1 + wpabuf_len(erp_resp)); /* Length */ | |
1785 | /* Element ID Extension */ | |
1786 | wpabuf_put_u8(data, WLAN_EID_EXT_FILS_WRAPPED_DATA); | |
1787 | wpabuf_put_buf(data, erp_resp); | |
1788 | ||
fcd3d6ce JM |
1789 | if (fils_rmsk_to_pmk(wpa_auth_sta_key_mgmt(sta->wpa_sm), |
1790 | msk, msk_len, sta->fils_snonce, fils_nonce, | |
1764559e JM |
1791 | sta->fils_dh_ss ? |
1792 | wpabuf_head(sta->fils_dh_ss) : NULL, | |
1793 | sta->fils_dh_ss ? | |
1794 | wpabuf_len(sta->fils_dh_ss) : 0, | |
1795 | pmk_buf, &pmk_len)) { | |
fcd3d6ce | 1796 | wpa_printf(MSG_DEBUG, "FILS: Failed to derive PMK"); |
5e5f8c81 | 1797 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
fcd3d6ce JM |
1798 | wpabuf_free(data); |
1799 | data = NULL; | |
1800 | goto fail; | |
1801 | } | |
1802 | pmk = pmk_buf; | |
b3e567c8 | 1803 | |
4cada9dc JM |
1804 | /* Don't use DHss in PTK derivation if PMKSA caching is not |
1805 | * used. */ | |
1806 | wpabuf_clear_free(sta->fils_dh_ss); | |
1807 | sta->fils_dh_ss = NULL; | |
1808 | ||
b3e567c8 JM |
1809 | if (sta->fils_erp_pmkid_set) { |
1810 | /* TODO: get PMKLifetime from WPA parameters */ | |
1811 | unsigned int dot11RSNAConfigPMKLifetime = 43200; | |
13f118dc MB |
1812 | int session_timeout; |
1813 | ||
1814 | session_timeout = dot11RSNAConfigPMKLifetime; | |
1815 | if (sta->session_timeout_set) { | |
1816 | struct os_reltime now, diff; | |
1817 | ||
1818 | os_get_reltime(&now); | |
1819 | os_reltime_sub(&sta->session_timeout, &now, | |
1820 | &diff); | |
1821 | session_timeout = diff.sec; | |
1822 | } | |
b3e567c8 JM |
1823 | |
1824 | sta->fils_erp_pmkid_set = 0; | |
a40bd06e JM |
1825 | wpa_auth_add_fils_pmk_pmkid(sta->wpa_sm, pmk, pmk_len, |
1826 | sta->fils_erp_pmkid); | |
aabbdb81 JM |
1827 | if (!hapd->conf->disable_pmksa_caching && |
1828 | wpa_auth_pmksa_add2( | |
b3e567c8 JM |
1829 | hapd->wpa_auth, sta->addr, |
1830 | pmk, pmk_len, | |
1831 | sta->fils_erp_pmkid, | |
13f118dc | 1832 | session_timeout, |
b3e567c8 JM |
1833 | wpa_auth_sta_key_mgmt(sta->wpa_sm)) < 0) { |
1834 | wpa_printf(MSG_ERROR, | |
1835 | "FILS: Failed to add PMKSA cache entry based on ERP"); | |
1836 | } | |
1837 | } | |
c4fd6d8a JM |
1838 | } else if (pmksa) { |
1839 | pmk = pmksa->pmk; | |
1840 | pmk_len = pmksa->pmk_len; | |
1841 | } | |
1842 | ||
1843 | if (!pmk) { | |
1844 | wpa_printf(MSG_DEBUG, "FILS: No PMK available"); | |
5e5f8c81 | 1845 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1846 | wpabuf_free(data); |
1847 | data = NULL; | |
1848 | goto fail; | |
1849 | } | |
1850 | ||
1851 | if (fils_auth_pmk_to_ptk(sta->wpa_sm, pmk, pmk_len, | |
80ddf5d9 | 1852 | sta->fils_snonce, fils_nonce, |
4cada9dc JM |
1853 | sta->fils_dh_ss ? |
1854 | wpabuf_head(sta->fils_dh_ss) : NULL, | |
1855 | sta->fils_dh_ss ? | |
1856 | wpabuf_len(sta->fils_dh_ss) : 0, | |
80ddf5d9 | 1857 | sta->fils_g_sta, pub) < 0) { |
5e5f8c81 | 1858 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1859 | wpabuf_free(data); |
1860 | data = NULL; | |
1861 | goto fail; | |
1862 | } | |
1863 | ||
1864 | fail: | |
5e5f8c81 JM |
1865 | if (is_pub) |
1866 | *is_pub = pub != NULL; | |
1867 | os_free(ie_buf); | |
1868 | wpabuf_free(pub); | |
1869 | wpabuf_clear_free(sta->fils_dh_ss); | |
1870 | sta->fils_dh_ss = NULL; | |
1871 | #ifdef CONFIG_FILS_SK_PFS | |
1872 | crypto_ecdh_deinit(sta->fils_ecdh); | |
1873 | sta->fils_ecdh = NULL; | |
1874 | #endif /* CONFIG_FILS_SK_PFS */ | |
1875 | return data; | |
1876 | } | |
1877 | ||
1878 | ||
1879 | static void handle_auth_fils_finish(struct hostapd_data *hapd, | |
1880 | struct sta_info *sta, u16 resp, | |
5cee22ca | 1881 | struct wpabuf *data, int pub) |
5e5f8c81 | 1882 | { |
5e5f8c81 | 1883 | u16 auth_alg; |
5e5f8c81 | 1884 | |
1764559e JM |
1885 | auth_alg = (pub || |
1886 | resp == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED) ? | |
1887 | WLAN_AUTH_FILS_SK_PFS : WLAN_AUTH_FILS_SK; | |
1888 | send_auth_reply(hapd, sta->addr, hapd->own_addr, auth_alg, 2, resp, | |
c4fd6d8a | 1889 | data ? wpabuf_head(data) : (u8 *) "", |
e7525a29 | 1890 | data ? wpabuf_len(data) : 0, "auth-fils-finish"); |
c4fd6d8a JM |
1891 | wpabuf_free(data); |
1892 | ||
1893 | if (resp == WLAN_STATUS_SUCCESS) { | |
1894 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1895 | HOSTAPD_LEVEL_DEBUG, | |
1896 | "authentication OK (FILS)"); | |
1897 | sta->flags |= WLAN_STA_AUTH; | |
1898 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
1764559e | 1899 | sta->auth_alg = pub ? WLAN_AUTH_FILS_SK_PFS : WLAN_AUTH_FILS_SK; |
c4fd6d8a JM |
1900 | mlme_authenticate_indication(hapd, sta); |
1901 | } | |
c4fd6d8a JM |
1902 | } |
1903 | ||
1904 | ||
1905 | void ieee802_11_finish_fils_auth(struct hostapd_data *hapd, | |
1906 | struct sta_info *sta, int success, | |
1907 | struct wpabuf *erp_resp, | |
1908 | const u8 *msk, size_t msk_len) | |
1909 | { | |
5cee22ca JM |
1910 | struct wpabuf *data; |
1911 | int pub = 0; | |
1912 | u16 resp; | |
1913 | ||
c4fd6d8a | 1914 | sta->flags &= ~WLAN_STA_PENDING_FILS_ERP; |
5cee22ca JM |
1915 | |
1916 | if (!sta->fils_pending_cb) | |
1917 | return; | |
1918 | resp = success ? WLAN_STATUS_SUCCESS : WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1919 | data = prepare_auth_resp_fils(hapd, sta, &resp, NULL, erp_resp, | |
1920 | msk, msk_len, &pub); | |
1921 | if (!data) { | |
1922 | wpa_printf(MSG_DEBUG, | |
1923 | "%s: prepare_auth_resp_fils() returned failure", | |
1924 | __func__); | |
1925 | } | |
1926 | sta->fils_pending_cb(hapd, sta, resp, data, pub); | |
c4fd6d8a JM |
1927 | } |
1928 | ||
1929 | #endif /* CONFIG_FILS */ | |
1930 | ||
1931 | ||
92eb00ae | 1932 | int |
53d17144 DL |
1933 | ieee802_11_allowed_address(struct hostapd_data *hapd, const u8 *addr, |
1934 | const u8 *msg, size_t len, u32 *session_timeout, | |
1935 | u32 *acct_interim_interval, | |
1936 | struct vlan_description *vlan_id, | |
1937 | struct hostapd_sta_wpa_psk_short **psk, | |
92eb00ae | 1938 | char **identity, char **radius_cui, int is_probe_req) |
53d17144 DL |
1939 | { |
1940 | int res; | |
1941 | ||
1942 | os_memset(vlan_id, 0, sizeof(*vlan_id)); | |
1943 | res = hostapd_allowed_address(hapd, addr, msg, len, | |
1944 | session_timeout, acct_interim_interval, | |
92eb00ae T |
1945 | vlan_id, psk, identity, radius_cui, |
1946 | is_probe_req); | |
53d17144 DL |
1947 | |
1948 | if (res == HOSTAPD_ACL_REJECT) { | |
6588f712 JM |
1949 | if (!is_probe_req) |
1950 | wpa_printf(MSG_DEBUG, | |
1951 | "Station " MACSTR | |
1952 | " not allowed to authenticate", | |
1953 | MAC2STR(addr)); | |
53d17144 DL |
1954 | return HOSTAPD_ACL_REJECT; |
1955 | } | |
1956 | ||
1957 | if (res == HOSTAPD_ACL_PENDING) { | |
1958 | wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR | |
1959 | " waiting for an external authentication", | |
1960 | MAC2STR(addr)); | |
1961 | /* Authentication code will re-send the authentication frame | |
1962 | * after it has received (and cached) information from the | |
1963 | * external source. */ | |
1964 | return HOSTAPD_ACL_PENDING; | |
1965 | } | |
1966 | ||
1967 | return res; | |
1968 | } | |
1969 | ||
1970 | ||
1971 | static int | |
1972 | ieee802_11_set_radius_info(struct hostapd_data *hapd, struct sta_info *sta, | |
1973 | int res, u32 session_timeout, | |
1974 | u32 acct_interim_interval, | |
1975 | struct vlan_description *vlan_id, | |
1976 | struct hostapd_sta_wpa_psk_short **psk, | |
1977 | char **identity, char **radius_cui) | |
1978 | { | |
1979 | if (vlan_id->notempty && | |
1980 | !hostapd_vlan_valid(hapd->conf->vlan, vlan_id)) { | |
1981 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
1982 | HOSTAPD_LEVEL_INFO, | |
1983 | "Invalid VLAN %d%s received from RADIUS server", | |
1984 | vlan_id->untagged, | |
1985 | vlan_id->tagged[0] ? "+" : ""); | |
1986 | return -1; | |
1987 | } | |
1988 | if (ap_sta_set_vlan(hapd, sta, vlan_id) < 0) | |
1989 | return -1; | |
1990 | if (sta->vlan_id) | |
1991 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
1992 | HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); | |
1993 | ||
1994 | hostapd_free_psk_list(sta->psk); | |
1995 | if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) { | |
1996 | sta->psk = *psk; | |
1997 | *psk = NULL; | |
1998 | } else { | |
1999 | sta->psk = NULL; | |
2000 | } | |
2001 | ||
17a8a989 | 2002 | os_free(sta->identity); |
53d17144 DL |
2003 | sta->identity = *identity; |
2004 | *identity = NULL; | |
17a8a989 MB |
2005 | |
2006 | os_free(sta->radius_cui); | |
53d17144 DL |
2007 | sta->radius_cui = *radius_cui; |
2008 | *radius_cui = NULL; | |
2009 | ||
2010 | if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) | |
2011 | sta->acct_interim_interval = acct_interim_interval; | |
13f118dc MB |
2012 | if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) { |
2013 | sta->session_timeout_set = 1; | |
2014 | os_get_reltime(&sta->session_timeout); | |
2015 | sta->session_timeout.sec += session_timeout; | |
53d17144 | 2016 | ap_sta_session_timeout(hapd, sta, session_timeout); |
13f118dc MB |
2017 | } else { |
2018 | sta->session_timeout_set = 0; | |
53d17144 | 2019 | ap_sta_no_session_timeout(hapd, sta); |
13f118dc | 2020 | } |
53d17144 DL |
2021 | |
2022 | return 0; | |
2023 | } | |
2024 | ||
2025 | ||
b57e086c | 2026 | static void handle_auth(struct hostapd_data *hapd, |
2ea1fce3 | 2027 | const struct ieee80211_mgmt *mgmt, size_t len, |
ff9f40ae | 2028 | int rssi, int from_queue) |
6fc6879b JM |
2029 | { |
2030 | u16 auth_alg, auth_transaction, status_code; | |
2031 | u16 resp = WLAN_STATUS_SUCCESS; | |
2032 | struct sta_info *sta = NULL; | |
bb598c3b | 2033 | int res, reply_res; |
6fc6879b | 2034 | u16 fc; |
b57e086c | 2035 | const u8 *challenge = NULL; |
6fc6879b | 2036 | u32 session_timeout, acct_interim_interval; |
1889af2e | 2037 | struct vlan_description vlan_id; |
2ad3e6c8 | 2038 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
6fc6879b JM |
2039 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; |
2040 | size_t resp_ies_len = 0; | |
2092597f MB |
2041 | char *identity = NULL; |
2042 | char *radius_cui = NULL; | |
38cb0a2d | 2043 | u16 seq_ctrl; |
6fc6879b JM |
2044 | |
2045 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
2046 | wpa_printf(MSG_INFO, "handle_auth - too short payload (len=%lu)", |
2047 | (unsigned long) len); | |
6fc6879b JM |
2048 | return; |
2049 | } | |
2050 | ||
c2aff6b1 | 2051 | #ifdef CONFIG_TESTING_OPTIONS |
06df2aa6 | 2052 | if (hapd->iconf->ignore_auth_probability > 0.0 && |
c2aff6b1 JB |
2053 | drand48() < hapd->iconf->ignore_auth_probability) { |
2054 | wpa_printf(MSG_INFO, | |
2055 | "TESTING: ignoring auth frame from " MACSTR, | |
2056 | MAC2STR(mgmt->sa)); | |
2057 | return; | |
2058 | } | |
2059 | #endif /* CONFIG_TESTING_OPTIONS */ | |
2060 | ||
6fc6879b JM |
2061 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); |
2062 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
2063 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
2064 | fc = le_to_host16(mgmt->frame_control); | |
38cb0a2d | 2065 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); |
6fc6879b JM |
2066 | |
2067 | if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + | |
2068 | 2 + WLAN_AUTH_CHALLENGE_LEN && | |
2069 | mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && | |
2070 | mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) | |
2071 | challenge = &mgmt->u.auth.variable[2]; | |
2072 | ||
2073 | wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " | |
38cb0a2d | 2074 | "auth_transaction=%d status_code=%d wep=%d%s " |
ff9f40ae | 2075 | "seq_ctrl=0x%x%s%s", |
6fc6879b JM |
2076 | MAC2STR(mgmt->sa), auth_alg, auth_transaction, |
2077 | status_code, !!(fc & WLAN_FC_ISWEP), | |
38cb0a2d | 2078 | challenge ? " challenge" : "", |
ff9f40ae JM |
2079 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : "", |
2080 | from_queue ? " (from queue)" : ""); | |
6fc6879b | 2081 | |
7cb53ded JM |
2082 | #ifdef CONFIG_NO_RC4 |
2083 | if (auth_alg == WLAN_AUTH_SHARED_KEY) { | |
2084 | wpa_printf(MSG_INFO, | |
2085 | "Unsupported authentication algorithm (%d)", | |
2086 | auth_alg); | |
2087 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
2088 | goto fail; | |
2089 | } | |
2090 | #endif /* CONFIG_NO_RC4 */ | |
2091 | ||
6fc6879b | 2092 | if (hapd->tkip_countermeasures) { |
e2fc13d0 BG |
2093 | wpa_printf(MSG_DEBUG, |
2094 | "Ongoing TKIP countermeasures (Michael MIC failure) - reject authentication"); | |
fe12ae77 | 2095 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2096 | goto fail; |
2097 | } | |
2098 | ||
2099 | if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && | |
2100 | auth_alg == WLAN_AUTH_OPEN) || | |
4ec1fd8e | 2101 | #ifdef CONFIG_IEEE80211R_AP |
0bf927a0 | 2102 | (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && |
6fc6879b | 2103 | auth_alg == WLAN_AUTH_FT) || |
4ec1fd8e | 2104 | #endif /* CONFIG_IEEE80211R_AP */ |
c10347f2 JM |
2105 | #ifdef CONFIG_SAE |
2106 | (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && | |
2107 | auth_alg == WLAN_AUTH_SAE) || | |
2108 | #endif /* CONFIG_SAE */ | |
c4fd6d8a JM |
2109 | #ifdef CONFIG_FILS |
2110 | (hapd->conf->wpa && wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt) && | |
2111 | auth_alg == WLAN_AUTH_FILS_SK) || | |
1764559e JM |
2112 | (hapd->conf->wpa && wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt) && |
2113 | hapd->conf->fils_dh_group && | |
2114 | auth_alg == WLAN_AUTH_FILS_SK_PFS) || | |
c4fd6d8a | 2115 | #endif /* CONFIG_FILS */ |
6fc6879b JM |
2116 | ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && |
2117 | auth_alg == WLAN_AUTH_SHARED_KEY))) { | |
61323e70 JM |
2118 | wpa_printf(MSG_INFO, "Unsupported authentication algorithm (%d)", |
2119 | auth_alg); | |
6fc6879b JM |
2120 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; |
2121 | goto fail; | |
2122 | } | |
2123 | ||
c10347f2 | 2124 | if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE || |
6fc6879b | 2125 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { |
61323e70 JM |
2126 | wpa_printf(MSG_INFO, "Unknown authentication transaction number (%d)", |
2127 | auth_transaction); | |
6fc6879b JM |
2128 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
2129 | goto fail; | |
2130 | } | |
2131 | ||
2132 | if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { | |
61323e70 JM |
2133 | wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate", |
2134 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
2135 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
2136 | goto fail; | |
2137 | } | |
2138 | ||
0e2412d0 JM |
2139 | if (hapd->conf->no_auth_if_seen_on) { |
2140 | struct hostapd_data *other; | |
2141 | ||
2142 | other = sta_track_seen_on(hapd->iface, mgmt->sa, | |
2143 | hapd->conf->no_auth_if_seen_on); | |
2144 | if (other) { | |
2145 | u8 *pos; | |
2146 | u32 info; | |
2147 | u8 op_class, channel, phytype; | |
2148 | ||
2149 | wpa_printf(MSG_DEBUG, "%s: Reject authentication from " | |
2150 | MACSTR " since STA has been seen on %s", | |
2151 | hapd->conf->iface, MAC2STR(mgmt->sa), | |
2152 | hapd->conf->no_auth_if_seen_on); | |
2153 | ||
2154 | resp = WLAN_STATUS_REJECTED_WITH_SUGGESTED_BSS_TRANSITION; | |
2155 | pos = &resp_ies[0]; | |
2156 | *pos++ = WLAN_EID_NEIGHBOR_REPORT; | |
2157 | *pos++ = 13; | |
2158 | os_memcpy(pos, other->own_addr, ETH_ALEN); | |
2159 | pos += ETH_ALEN; | |
2160 | info = 0; /* TODO: BSSID Information */ | |
2161 | WPA_PUT_LE32(pos, info); | |
2162 | pos += 4; | |
2163 | if (other->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD) | |
2164 | phytype = 8; /* dmg */ | |
2165 | else if (other->iconf->ieee80211ac) | |
2166 | phytype = 9; /* vht */ | |
2167 | else if (other->iconf->ieee80211n) | |
2168 | phytype = 7; /* ht */ | |
2169 | else if (other->iconf->hw_mode == | |
2170 | HOSTAPD_MODE_IEEE80211A) | |
2171 | phytype = 4; /* ofdm */ | |
2172 | else if (other->iconf->hw_mode == | |
2173 | HOSTAPD_MODE_IEEE80211G) | |
2174 | phytype = 6; /* erp */ | |
2175 | else | |
2176 | phytype = 5; /* hrdsss */ | |
2177 | if (ieee80211_freq_to_channel_ext( | |
2178 | hostapd_hw_get_freq(other, | |
2179 | other->iconf->channel), | |
2180 | other->iconf->secondary_channel, | |
2181 | other->iconf->ieee80211ac, | |
2182 | &op_class, &channel) == NUM_HOSTAPD_MODES) { | |
2183 | op_class = 0; | |
2184 | channel = other->iconf->channel; | |
2185 | } | |
2186 | *pos++ = op_class; | |
2187 | *pos++ = channel; | |
2188 | *pos++ = phytype; | |
2189 | resp_ies_len = pos - &resp_ies[0]; | |
2190 | goto fail; | |
2191 | } | |
2192 | } | |
2193 | ||
53d17144 DL |
2194 | res = ieee802_11_allowed_address( |
2195 | hapd, mgmt->sa, (const u8 *) mgmt, len, &session_timeout, | |
92eb00ae T |
2196 | &acct_interim_interval, &vlan_id, &psk, &identity, &radius_cui, |
2197 | 0); | |
6fc6879b | 2198 | if (res == HOSTAPD_ACL_REJECT) { |
92eb00ae T |
2199 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, |
2200 | "Ignore Authentication frame from " MACSTR | |
2201 | " due to ACL reject", MAC2STR(mgmt->sa)); | |
6fc6879b JM |
2202 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
2203 | goto fail; | |
2204 | } | |
53d17144 | 2205 | if (res == HOSTAPD_ACL_PENDING) |
6fc6879b | 2206 | return; |
6fc6879b | 2207 | |
ff9f40ae | 2208 | #ifdef CONFIG_SAE |
5e3a759c JM |
2209 | if (auth_alg == WLAN_AUTH_SAE && !from_queue && |
2210 | (auth_transaction == 1 || | |
2211 | (auth_transaction == 2 && auth_sae_queued_addr(hapd, mgmt->sa)))) { | |
ff9f40ae JM |
2212 | /* Handle SAE Authentication commit message through a queue to |
2213 | * provide more control for postponing the needed heavy | |
5e3a759c JM |
2214 | * processing under a possible DoS attack scenario. In addition, |
2215 | * queue SAE Authentication confirm message if there happens to | |
2216 | * be a queued commit message from the same peer. This is needed | |
2217 | * to avoid reordering Authentication frames within the same | |
2218 | * SAE exchange. */ | |
2219 | auth_sae_queue(hapd, mgmt, len, rssi); | |
ff9f40ae JM |
2220 | return; |
2221 | } | |
2222 | #endif /* CONFIG_SAE */ | |
2223 | ||
38cb0a2d IP |
2224 | sta = ap_get_sta(hapd, mgmt->sa); |
2225 | if (sta) { | |
c4fd6d8a | 2226 | sta->flags &= ~WLAN_STA_PENDING_FILS_ERP; |
4cf5efec | 2227 | sta->ft_over_ds = 0; |
38cb0a2d IP |
2228 | if ((fc & WLAN_FC_RETRY) && |
2229 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
2230 | sta->last_seq_ctrl == seq_ctrl && | |
2231 | sta->last_subtype == WLAN_FC_STYPE_AUTH) { | |
2232 | hostapd_logger(hapd, sta->addr, | |
2233 | HOSTAPD_MODULE_IEEE80211, | |
2234 | HOSTAPD_LEVEL_DEBUG, | |
2235 | "Drop repeated authentication frame seq_ctrl=0x%x", | |
2236 | seq_ctrl); | |
2237 | return; | |
2238 | } | |
09d96de0 MH |
2239 | #ifdef CONFIG_MESH |
2240 | if ((hapd->conf->mesh & MESH_ENABLED) && | |
2241 | sta->plink_state == PLINK_BLOCKED) { | |
2242 | wpa_printf(MSG_DEBUG, "Mesh peer " MACSTR | |
2243 | " is blocked - drop Authentication frame", | |
2244 | MAC2STR(mgmt->sa)); | |
2245 | return; | |
2246 | } | |
2247 | #endif /* CONFIG_MESH */ | |
38cb0a2d | 2248 | } else { |
c50d94f1 | 2249 | #ifdef CONFIG_MESH |
38cb0a2d IP |
2250 | if (hapd->conf->mesh & MESH_ENABLED) { |
2251 | /* if the mesh peer is not available, we don't do auth. | |
2252 | */ | |
3a322496 | 2253 | wpa_printf(MSG_DEBUG, "Mesh peer " MACSTR |
09d96de0 | 2254 | " not yet known - drop Authentication frame", |
3a322496 JM |
2255 | MAC2STR(mgmt->sa)); |
2256 | /* | |
2257 | * Save a copy of the frame so that it can be processed | |
2258 | * if a new peer entry is added shortly after this. | |
2259 | */ | |
2260 | wpabuf_free(hapd->mesh_pending_auth); | |
2261 | hapd->mesh_pending_auth = wpabuf_alloc_copy(mgmt, len); | |
2262 | os_get_reltime(&hapd->mesh_pending_auth_time); | |
c50d94f1 | 2263 | return; |
38cb0a2d | 2264 | } |
c50d94f1 | 2265 | #endif /* CONFIG_MESH */ |
38cb0a2d | 2266 | |
c50d94f1 BC |
2267 | sta = ap_sta_add(hapd, mgmt->sa); |
2268 | if (!sta) { | |
c6b5b9a3 | 2269 | wpa_printf(MSG_DEBUG, "ap_sta_add() failed"); |
c50d94f1 BC |
2270 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; |
2271 | goto fail; | |
2272 | } | |
6fc6879b | 2273 | } |
38cb0a2d IP |
2274 | sta->last_seq_ctrl = seq_ctrl; |
2275 | sta->last_subtype = WLAN_FC_STYPE_AUTH; | |
2ea1fce3 JM |
2276 | #ifdef CONFIG_MBO |
2277 | sta->auth_rssi = rssi; | |
2278 | #endif /* CONFIG_MBO */ | |
6fc6879b | 2279 | |
53d17144 DL |
2280 | res = ieee802_11_set_radius_info( |
2281 | hapd, sta, res, session_timeout, acct_interim_interval, | |
2282 | &vlan_id, &psk, &identity, &radius_cui); | |
2283 | if (res) { | |
c6b5b9a3 | 2284 | wpa_printf(MSG_DEBUG, "ieee802_11_set_radius_info() failed"); |
8be640b7 MB |
2285 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
2286 | goto fail; | |
6fc6879b | 2287 | } |
2092597f | 2288 | |
6fc6879b JM |
2289 | sta->flags &= ~WLAN_STA_PREAUTH; |
2290 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
2291 | ||
bb598c3b AB |
2292 | /* |
2293 | * If the driver supports full AP client state, add a station to the | |
2294 | * driver before sending authentication reply to make sure the driver | |
2295 | * has resources, and not to go through the entire authentication and | |
2296 | * association handshake, and fail it at the end. | |
2297 | * | |
2298 | * If this is not the first transaction, in a multi-step authentication | |
2299 | * algorithm, the station already exists in the driver | |
2300 | * (sta->added_unassoc = 1) so skip it. | |
2301 | * | |
2302 | * In mesh mode, the station was already added to the driver when the | |
2303 | * NEW_PEER_CANDIDATE event is received. | |
2ab09656 JM |
2304 | * |
2305 | * If PMF was negotiated for the existing association, skip this to | |
2306 | * avoid dropping the STA entry and the associated keys. This is needed | |
2307 | * to allow the original connection work until the attempt can complete | |
2308 | * (re)association, so that unprotected Authentication frame cannot be | |
2309 | * used to bypass PMF protection. | |
bb598c3b AB |
2310 | */ |
2311 | if (FULL_AP_CLIENT_STATE_SUPP(hapd->iface->drv_flags) && | |
2ab09656 | 2312 | (!(sta->flags & WLAN_STA_MFP) || !ap_sta_is_authorized(sta)) && |
bb598c3b AB |
2313 | !(hapd->conf->mesh & MESH_ENABLED) && |
2314 | !(sta->added_unassoc)) { | |
2315 | /* | |
2316 | * If a station that is already associated to the AP, is trying | |
2317 | * to authenticate again, remove the STA entry, in order to make | |
2318 | * sure the STA PS state gets cleared and configuration gets | |
2319 | * updated. To handle this, station's added_unassoc flag is | |
2320 | * cleared once the station has completed association. | |
2321 | */ | |
b5ebe5dd | 2322 | ap_sta_set_authorized(hapd, sta, 0); |
bb598c3b AB |
2323 | hostapd_drv_sta_remove(hapd, sta->addr); |
2324 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_AUTH | | |
2325 | WLAN_STA_AUTHORIZED); | |
2326 | ||
468b7b12 | 2327 | if (hostapd_sta_add(hapd, sta->addr, 0, 0, NULL, 0, 0, |
78d35b16 JC |
2328 | NULL, NULL, NULL, 0, |
2329 | sta->flags, 0, 0, 0, 0)) { | |
bb598c3b AB |
2330 | hostapd_logger(hapd, sta->addr, |
2331 | HOSTAPD_MODULE_IEEE80211, | |
2332 | HOSTAPD_LEVEL_NOTICE, | |
2333 | "Could not add STA to kernel driver"); | |
2334 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
2335 | goto fail; | |
2336 | } | |
2337 | ||
2338 | sta->added_unassoc = 1; | |
2339 | } | |
2340 | ||
6fc6879b JM |
2341 | switch (auth_alg) { |
2342 | case WLAN_AUTH_OPEN: | |
2343 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2344 | HOSTAPD_LEVEL_DEBUG, | |
2345 | "authentication OK (open system)"); | |
6fc6879b JM |
2346 | sta->flags |= WLAN_STA_AUTH; |
2347 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
2348 | sta->auth_alg = WLAN_AUTH_OPEN; | |
2349 | mlme_authenticate_indication(hapd, sta); | |
6fc6879b | 2350 | break; |
7cb53ded | 2351 | #ifndef CONFIG_NO_RC4 |
6fc6879b JM |
2352 | case WLAN_AUTH_SHARED_KEY: |
2353 | resp = auth_shared_key(hapd, sta, auth_transaction, challenge, | |
2354 | fc & WLAN_FC_ISWEP); | |
c6b5b9a3 BG |
2355 | if (resp != 0) |
2356 | wpa_printf(MSG_DEBUG, | |
2357 | "auth_shared_key() failed: status=%d", resp); | |
6fc6879b JM |
2358 | sta->auth_alg = WLAN_AUTH_SHARED_KEY; |
2359 | mlme_authenticate_indication(hapd, sta); | |
2360 | if (sta->challenge && auth_transaction == 1) { | |
2361 | resp_ies[0] = WLAN_EID_CHALLENGE; | |
2362 | resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; | |
2363 | os_memcpy(resp_ies + 2, sta->challenge, | |
2364 | WLAN_AUTH_CHALLENGE_LEN); | |
2365 | resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; | |
2366 | } | |
2367 | break; | |
7cb53ded | 2368 | #endif /* CONFIG_NO_RC4 */ |
4ec1fd8e | 2369 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b JM |
2370 | case WLAN_AUTH_FT: |
2371 | sta->auth_alg = WLAN_AUTH_FT; | |
2372 | if (sta->wpa_sm == NULL) | |
2373 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e | 2374 | sta->addr, NULL); |
6fc6879b JM |
2375 | if (sta->wpa_sm == NULL) { |
2376 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
2377 | "state machine"); | |
2378 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2379 | goto fail; | |
2380 | } | |
2381 | wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, | |
2382 | auth_transaction, mgmt->u.auth.variable, | |
2383 | len - IEEE80211_HDRLEN - | |
2384 | sizeof(mgmt->u.auth), | |
2385 | handle_auth_ft_finish, hapd); | |
2386 | /* handle_auth_ft_finish() callback will complete auth. */ | |
2387 | return; | |
4ec1fd8e | 2388 | #endif /* CONFIG_IEEE80211R_AP */ |
c10347f2 JM |
2389 | #ifdef CONFIG_SAE |
2390 | case WLAN_AUTH_SAE: | |
c50d94f1 | 2391 | #ifdef CONFIG_MESH |
afa2ffb4 JM |
2392 | if (status_code == WLAN_STATUS_SUCCESS && |
2393 | hapd->conf->mesh & MESH_ENABLED) { | |
c50d94f1 BC |
2394 | if (sta->wpa_sm == NULL) |
2395 | sta->wpa_sm = | |
2396 | wpa_auth_sta_init(hapd->wpa_auth, | |
2397 | sta->addr, NULL); | |
2398 | if (sta->wpa_sm == NULL) { | |
2399 | wpa_printf(MSG_DEBUG, | |
2400 | "SAE: Failed to initialize WPA state machine"); | |
2401 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2402 | goto fail; | |
2403 | } | |
2404 | } | |
2405 | #endif /* CONFIG_MESH */ | |
afa2ffb4 JM |
2406 | handle_auth_sae(hapd, sta, mgmt, len, auth_transaction, |
2407 | status_code); | |
c10347f2 JM |
2408 | return; |
2409 | #endif /* CONFIG_SAE */ | |
c4fd6d8a JM |
2410 | #ifdef CONFIG_FILS |
2411 | case WLAN_AUTH_FILS_SK: | |
1764559e | 2412 | case WLAN_AUTH_FILS_SK_PFS: |
b8a3453a JM |
2413 | handle_auth_fils(hapd, sta, mgmt->u.auth.variable, |
2414 | len - IEEE80211_HDRLEN - sizeof(mgmt->u.auth), | |
5cee22ca JM |
2415 | auth_alg, auth_transaction, status_code, |
2416 | handle_auth_fils_finish); | |
c4fd6d8a JM |
2417 | return; |
2418 | #endif /* CONFIG_FILS */ | |
6fc6879b JM |
2419 | } |
2420 | ||
2421 | fail: | |
2092597f MB |
2422 | os_free(identity); |
2423 | os_free(radius_cui); | |
f2a14be7 | 2424 | hostapd_free_psk_list(psk); |
2092597f | 2425 | |
bb598c3b AB |
2426 | reply_res = send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, |
2427 | auth_transaction + 1, resp, resp_ies, | |
e7525a29 | 2428 | resp_ies_len, "handle-auth"); |
bb598c3b AB |
2429 | |
2430 | if (sta && sta->added_unassoc && (resp != WLAN_STATUS_SUCCESS || | |
2431 | reply_res != WLAN_STATUS_SUCCESS)) { | |
2432 | hostapd_drv_sta_remove(hapd, sta->addr); | |
2433 | sta->added_unassoc = 0; | |
2434 | } | |
6fc6879b JM |
2435 | } |
2436 | ||
2437 | ||
681753f2 | 2438 | int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) |
d42a62b3 | 2439 | { |
2991469c JM |
2440 | int i, j = 32, aid; |
2441 | ||
d42a62b3 JM |
2442 | /* get a unique AID */ |
2443 | if (sta->aid > 0) { | |
2444 | wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); | |
2445 | return 0; | |
2446 | } | |
2447 | ||
d7358113 JM |
2448 | if (TEST_FAIL()) |
2449 | return -1; | |
2450 | ||
2991469c JM |
2451 | for (i = 0; i < AID_WORDS; i++) { |
2452 | if (hapd->sta_aid[i] == (u32) -1) | |
2453 | continue; | |
2454 | for (j = 0; j < 32; j++) { | |
2455 | if (!(hapd->sta_aid[i] & BIT(j))) | |
2456 | break; | |
2457 | } | |
2458 | if (j < 32) | |
d42a62b3 | 2459 | break; |
d42a62b3 | 2460 | } |
2991469c JM |
2461 | if (j == 32) |
2462 | return -1; | |
2463 | aid = i * 32 + j + 1; | |
2464 | if (aid > 2007) | |
2465 | return -1; | |
d42a62b3 | 2466 | |
2991469c JM |
2467 | sta->aid = aid; |
2468 | hapd->sta_aid[i] |= BIT(j); | |
d42a62b3 JM |
2469 | wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); |
2470 | return 0; | |
2471 | } | |
2472 | ||
2473 | ||
5586f500 JM |
2474 | static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, |
2475 | const u8 *ssid_ie, size_t ssid_ie_len) | |
6fc6879b | 2476 | { |
5586f500 JM |
2477 | if (ssid_ie == NULL) |
2478 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 2479 | |
5586f500 JM |
2480 | if (ssid_ie_len != hapd->conf->ssid.ssid_len || |
2481 | os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { | |
5586f500 JM |
2482 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
2483 | HOSTAPD_LEVEL_INFO, | |
2484 | "Station tried to associate with unknown SSID " | |
b37d582e | 2485 | "'%s'", wpa_ssid_txt(ssid_ie, ssid_ie_len)); |
5586f500 | 2486 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
b0194fe0 JM |
2487 | } |
2488 | ||
5586f500 JM |
2489 | return WLAN_STATUS_SUCCESS; |
2490 | } | |
6fc6879b | 2491 | |
6fc6879b | 2492 | |
5586f500 JM |
2493 | static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, |
2494 | const u8 *wmm_ie, size_t wmm_ie_len) | |
2495 | { | |
3ae0800c | 2496 | sta->flags &= ~WLAN_STA_WMM; |
5d061637 | 2497 | sta->qosinfo = 0; |
5586f500 | 2498 | if (wmm_ie && hapd->conf->wmm_enabled) { |
5f32f79c | 2499 | struct wmm_information_element *wmm; |
5f32f79c | 2500 | |
c84b868a | 2501 | if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) { |
6fc6879b JM |
2502 | hostapd_logger(hapd, sta->addr, |
2503 | HOSTAPD_MODULE_WPA, | |
2504 | HOSTAPD_LEVEL_DEBUG, | |
3ae0800c | 2505 | "invalid WMM element in association " |
6fc6879b | 2506 | "request"); |
5f32f79c EP |
2507 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
2508 | } | |
2509 | ||
2510 | sta->flags |= WLAN_STA_WMM; | |
2511 | wmm = (struct wmm_information_element *) wmm_ie; | |
5d061637 | 2512 | sta->qosinfo = wmm->qos_info; |
6fc6879b | 2513 | } |
5586f500 JM |
2514 | return WLAN_STATUS_SUCCESS; |
2515 | } | |
6fc6879b | 2516 | |
9c06f0f6 VN |
2517 | static u16 check_multi_ap(struct hostapd_data *hapd, struct sta_info *sta, |
2518 | const u8 *multi_ap_ie, size_t multi_ap_len) | |
2519 | { | |
2520 | u8 multi_ap_value = 0; | |
2521 | ||
2522 | sta->flags &= ~WLAN_STA_MULTI_AP; | |
2523 | ||
2524 | if (!hapd->conf->multi_ap) | |
2525 | return WLAN_STATUS_SUCCESS; | |
2526 | ||
2527 | if (multi_ap_ie) { | |
2528 | const u8 *multi_ap_subelem; | |
2529 | ||
2530 | multi_ap_subelem = get_ie(multi_ap_ie + 4, | |
2531 | multi_ap_len - 4, | |
2532 | MULTI_AP_SUB_ELEM_TYPE); | |
2533 | if (multi_ap_subelem && multi_ap_subelem[1] == 1) { | |
2534 | multi_ap_value = multi_ap_subelem[2]; | |
2535 | } else { | |
2536 | hostapd_logger(hapd, sta->addr, | |
2537 | HOSTAPD_MODULE_IEEE80211, | |
2538 | HOSTAPD_LEVEL_INFO, | |
2539 | "Multi-AP IE has missing or invalid Multi-AP subelement"); | |
2540 | return WLAN_STATUS_INVALID_IE; | |
2541 | } | |
2542 | } | |
2543 | ||
bfcdac1c AVEM |
2544 | if (multi_ap_value && multi_ap_value != MULTI_AP_BACKHAUL_STA) |
2545 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2546 | HOSTAPD_LEVEL_INFO, | |
2547 | "Multi-AP IE with unexpected value 0x%02x", | |
2548 | multi_ap_value); | |
9c06f0f6 | 2549 | |
bfcdac1c AVEM |
2550 | if (!(multi_ap_value & MULTI_AP_BACKHAUL_STA)) { |
2551 | if (hapd->conf->multi_ap & FRONTHAUL_BSS) | |
2552 | return WLAN_STATUS_SUCCESS; | |
9c06f0f6 | 2553 | |
bfcdac1c AVEM |
2554 | hostapd_logger(hapd, sta->addr, |
2555 | HOSTAPD_MODULE_IEEE80211, | |
2556 | HOSTAPD_LEVEL_INFO, | |
2557 | "Non-Multi-AP STA tries to associate with backhaul-only BSS"); | |
2558 | return WLAN_STATUS_ASSOC_DENIED_UNSPEC; | |
9c06f0f6 VN |
2559 | } |
2560 | ||
bfcdac1c AVEM |
2561 | if (!(hapd->conf->multi_ap & BACKHAUL_BSS)) |
2562 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2563 | HOSTAPD_LEVEL_DEBUG, | |
2564 | "Backhaul STA tries to associate with fronthaul-only BSS"); | |
2565 | ||
2566 | sta->flags |= WLAN_STA_MULTI_AP; | |
2567 | return WLAN_STATUS_SUCCESS; | |
9c06f0f6 VN |
2568 | } |
2569 | ||
5586f500 JM |
2570 | |
2571 | static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, | |
2572 | struct ieee802_11_elems *elems) | |
2573 | { | |
0c4b9025 DL |
2574 | /* Supported rates not used in IEEE 802.11ad/DMG */ |
2575 | if (hapd->iface->current_mode && | |
2576 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) | |
2577 | return WLAN_STATUS_SUCCESS; | |
2578 | ||
5586f500 JM |
2579 | if (!elems->supp_rates) { |
2580 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
6fc6879b JM |
2581 | HOSTAPD_LEVEL_DEBUG, |
2582 | "No supported rates element in AssocReq"); | |
5586f500 | 2583 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2584 | } |
2585 | ||
3489cfb0 JM |
2586 | if (elems->supp_rates_len + elems->ext_supp_rates_len > |
2587 | sizeof(sta->supported_rates)) { | |
5586f500 | 2588 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
6fc6879b | 2589 | HOSTAPD_LEVEL_DEBUG, |
3489cfb0 JM |
2590 | "Invalid supported rates element length %d+%d", |
2591 | elems->supp_rates_len, | |
2592 | elems->ext_supp_rates_len); | |
5586f500 | 2593 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2594 | } |
2595 | ||
3489cfb0 JM |
2596 | sta->supported_rates_len = merge_byte_arrays( |
2597 | sta->supported_rates, sizeof(sta->supported_rates), | |
2598 | elems->supp_rates, elems->supp_rates_len, | |
2599 | elems->ext_supp_rates, elems->ext_supp_rates_len); | |
6fc6879b | 2600 | |
5586f500 JM |
2601 | return WLAN_STATUS_SUCCESS; |
2602 | } | |
2603 | ||
2604 | ||
c551700f KP |
2605 | static u16 check_ext_capab(struct hostapd_data *hapd, struct sta_info *sta, |
2606 | const u8 *ext_capab_ie, size_t ext_capab_ie_len) | |
2607 | { | |
2608 | #ifdef CONFIG_INTERWORKING | |
2609 | /* check for QoS Map support */ | |
2610 | if (ext_capab_ie_len >= 5) { | |
2611 | if (ext_capab_ie[4] & 0x01) | |
2612 | sta->qos_map_enabled = 1; | |
2613 | } | |
2614 | #endif /* CONFIG_INTERWORKING */ | |
2615 | ||
65f9db6b | 2616 | if (ext_capab_ie_len > 0) { |
98b05081 | 2617 | sta->ecsa_supported = !!(ext_capab_ie[0] & BIT(2)); |
65f9db6b | 2618 | os_free(sta->ext_capability); |
2619 | sta->ext_capability = os_malloc(1 + ext_capab_ie_len); | |
2620 | if (sta->ext_capability) { | |
2621 | sta->ext_capability[0] = ext_capab_ie_len; | |
2622 | os_memcpy(sta->ext_capability + 1, ext_capab_ie, | |
2623 | ext_capab_ie_len); | |
2624 | } | |
2625 | } | |
98b05081 | 2626 | |
c551700f KP |
2627 | return WLAN_STATUS_SUCCESS; |
2628 | } | |
2629 | ||
2630 | ||
09368515 | 2631 | #ifdef CONFIG_OWE |
91cc34bf JM |
2632 | |
2633 | static int owe_group_supported(struct hostapd_data *hapd, u16 group) | |
2634 | { | |
2635 | int i; | |
2636 | int *groups = hapd->conf->owe_groups; | |
2637 | ||
2638 | if (group != 19 && group != 20 && group != 21) | |
2639 | return 0; | |
2640 | ||
2641 | if (!groups) | |
2642 | return 1; | |
2643 | ||
2644 | for (i = 0; groups[i] > 0; i++) { | |
2645 | if (groups[i] == group) | |
2646 | return 1; | |
2647 | } | |
2648 | ||
2649 | return 0; | |
2650 | } | |
2651 | ||
2652 | ||
d90f10fa JM |
2653 | static u16 owe_process_assoc_req(struct hostapd_data *hapd, |
2654 | struct sta_info *sta, const u8 *owe_dh, | |
09368515 JM |
2655 | u8 owe_dh_len) |
2656 | { | |
2657 | struct wpabuf *secret, *pub, *hkey; | |
2658 | int res; | |
7a12edd1 | 2659 | u8 prk[SHA512_MAC_LEN], pmkid[SHA512_MAC_LEN]; |
09368515 JM |
2660 | const char *info = "OWE Key Generation"; |
2661 | const u8 *addr[2]; | |
2662 | size_t len[2]; | |
7a12edd1 JM |
2663 | u16 group; |
2664 | size_t hash_len, prime_len; | |
2665 | ||
d90f10fa JM |
2666 | if (wpa_auth_sta_get_pmksa(sta->wpa_sm)) { |
2667 | wpa_printf(MSG_DEBUG, "OWE: Using PMKSA caching"); | |
2668 | return WLAN_STATUS_SUCCESS; | |
2669 | } | |
2670 | ||
7a12edd1 | 2671 | group = WPA_GET_LE16(owe_dh); |
91cc34bf JM |
2672 | if (!owe_group_supported(hapd, group)) { |
2673 | wpa_printf(MSG_DEBUG, "OWE: Unsupported DH group %u", group); | |
2674 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
2675 | } | |
7a12edd1 JM |
2676 | if (group == 19) |
2677 | prime_len = 32; | |
2678 | else if (group == 20) | |
2679 | prime_len = 48; | |
2680 | else if (group == 21) | |
2681 | prime_len = 66; | |
2682 | else | |
09368515 JM |
2683 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; |
2684 | ||
2685 | crypto_ecdh_deinit(sta->owe_ecdh); | |
7a12edd1 | 2686 | sta->owe_ecdh = crypto_ecdh_init(group); |
09368515 JM |
2687 | if (!sta->owe_ecdh) |
2688 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
7a12edd1 | 2689 | sta->owe_group = group; |
09368515 JM |
2690 | |
2691 | secret = crypto_ecdh_set_peerkey(sta->owe_ecdh, 0, owe_dh + 2, | |
2692 | owe_dh_len - 2); | |
7a12edd1 | 2693 | secret = wpabuf_zeropad(secret, prime_len); |
09368515 JM |
2694 | if (!secret) { |
2695 | wpa_printf(MSG_DEBUG, "OWE: Invalid peer DH public key"); | |
2696 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2697 | } | |
2698 | wpa_hexdump_buf_key(MSG_DEBUG, "OWE: DH shared secret", secret); | |
2699 | ||
2700 | /* prk = HKDF-extract(C | A | group, z) */ | |
2701 | ||
2702 | pub = crypto_ecdh_get_pubkey(sta->owe_ecdh, 0); | |
2703 | if (!pub) { | |
2704 | wpabuf_clear_free(secret); | |
2705 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2706 | } | |
2707 | ||
2708 | /* PMKID = Truncate-128(Hash(C | A)) */ | |
2709 | addr[0] = owe_dh + 2; | |
2710 | len[0] = owe_dh_len - 2; | |
2711 | addr[1] = wpabuf_head(pub); | |
2712 | len[1] = wpabuf_len(pub); | |
7a12edd1 JM |
2713 | if (group == 19) { |
2714 | res = sha256_vector(2, addr, len, pmkid); | |
2715 | hash_len = SHA256_MAC_LEN; | |
2716 | } else if (group == 20) { | |
2717 | res = sha384_vector(2, addr, len, pmkid); | |
2718 | hash_len = SHA384_MAC_LEN; | |
2719 | } else if (group == 21) { | |
2720 | res = sha512_vector(2, addr, len, pmkid); | |
2721 | hash_len = SHA512_MAC_LEN; | |
2722 | } else { | |
2723 | wpabuf_free(pub); | |
2724 | wpabuf_clear_free(secret); | |
2725 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2726 | } | |
2727 | pub = wpabuf_zeropad(pub, prime_len); | |
2728 | if (res < 0 || !pub) { | |
09368515 JM |
2729 | wpabuf_free(pub); |
2730 | wpabuf_clear_free(secret); | |
2731 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2732 | } | |
2733 | ||
2734 | hkey = wpabuf_alloc(owe_dh_len - 2 + wpabuf_len(pub) + 2); | |
2735 | if (!hkey) { | |
2736 | wpabuf_free(pub); | |
2737 | wpabuf_clear_free(secret); | |
2738 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2739 | } | |
2740 | ||
2741 | wpabuf_put_data(hkey, owe_dh + 2, owe_dh_len - 2); /* C */ | |
2742 | wpabuf_put_buf(hkey, pub); /* A */ | |
2743 | wpabuf_free(pub); | |
7a12edd1 JM |
2744 | wpabuf_put_le16(hkey, group); /* group */ |
2745 | if (group == 19) | |
2746 | res = hmac_sha256(wpabuf_head(hkey), wpabuf_len(hkey), | |
2747 | wpabuf_head(secret), wpabuf_len(secret), prk); | |
2748 | else if (group == 20) | |
2749 | res = hmac_sha384(wpabuf_head(hkey), wpabuf_len(hkey), | |
2750 | wpabuf_head(secret), wpabuf_len(secret), prk); | |
2751 | else if (group == 21) | |
2752 | res = hmac_sha512(wpabuf_head(hkey), wpabuf_len(hkey), | |
2753 | wpabuf_head(secret), wpabuf_len(secret), prk); | |
09368515 JM |
2754 | wpabuf_clear_free(hkey); |
2755 | wpabuf_clear_free(secret); | |
2756 | if (res < 0) | |
2757 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2758 | ||
7a12edd1 | 2759 | wpa_hexdump_key(MSG_DEBUG, "OWE: prk", prk, hash_len); |
09368515 JM |
2760 | |
2761 | /* PMK = HKDF-expand(prk, "OWE Key Generation", n) */ | |
2762 | ||
2763 | os_free(sta->owe_pmk); | |
7a12edd1 | 2764 | sta->owe_pmk = os_malloc(hash_len); |
09368515 | 2765 | if (!sta->owe_pmk) { |
7a12edd1 | 2766 | os_memset(prk, 0, SHA512_MAC_LEN); |
09368515 JM |
2767 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
2768 | } | |
2769 | ||
7a12edd1 JM |
2770 | if (group == 19) |
2771 | res = hmac_sha256_kdf(prk, hash_len, NULL, (const u8 *) info, | |
2772 | os_strlen(info), sta->owe_pmk, hash_len); | |
2773 | else if (group == 20) | |
2774 | res = hmac_sha384_kdf(prk, hash_len, NULL, (const u8 *) info, | |
2775 | os_strlen(info), sta->owe_pmk, hash_len); | |
2776 | else if (group == 21) | |
2777 | res = hmac_sha512_kdf(prk, hash_len, NULL, (const u8 *) info, | |
2778 | os_strlen(info), sta->owe_pmk, hash_len); | |
2779 | os_memset(prk, 0, SHA512_MAC_LEN); | |
09368515 JM |
2780 | if (res < 0) { |
2781 | os_free(sta->owe_pmk); | |
2782 | sta->owe_pmk = NULL; | |
2783 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2784 | } | |
7a12edd1 | 2785 | sta->owe_pmk_len = hash_len; |
09368515 | 2786 | |
7a12edd1 | 2787 | wpa_hexdump_key(MSG_DEBUG, "OWE: PMK", sta->owe_pmk, sta->owe_pmk_len); |
09368515 | 2788 | wpa_hexdump(MSG_DEBUG, "OWE: PMKID", pmkid, PMKID_LEN); |
d90f10fa JM |
2789 | wpa_auth_pmksa_add2(hapd->wpa_auth, sta->addr, sta->owe_pmk, |
2790 | sta->owe_pmk_len, pmkid, 0, WPA_KEY_MGMT_OWE); | |
09368515 JM |
2791 | |
2792 | return WLAN_STATUS_SUCCESS; | |
2793 | } | |
91cc34bf | 2794 | |
09368515 JM |
2795 | #endif /* CONFIG_OWE */ |
2796 | ||
2797 | ||
5586f500 | 2798 | static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c | 2799 | const u8 *ies, size_t ies_len, int reassoc) |
5586f500 JM |
2800 | { |
2801 | struct ieee802_11_elems elems; | |
2802 | u16 resp; | |
ba091c06 | 2803 | const u8 *wpa_ie; |
5586f500 | 2804 | size_t wpa_ie_len; |
94ddef3e | 2805 | const u8 *p2p_dev_addr = NULL; |
5586f500 JM |
2806 | |
2807 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { | |
2808 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2809 | HOSTAPD_LEVEL_INFO, "Station sent an invalid " | |
2810 | "association request"); | |
2811 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2812 | } | |
2813 | ||
2814 | resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); | |
2815 | if (resp != WLAN_STATUS_SUCCESS) | |
2816 | return resp; | |
2817 | resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); | |
c551700f KP |
2818 | if (resp != WLAN_STATUS_SUCCESS) |
2819 | return resp; | |
2820 | resp = check_ext_capab(hapd, sta, elems.ext_capab, elems.ext_capab_len); | |
5586f500 JM |
2821 | if (resp != WLAN_STATUS_SUCCESS) |
2822 | return resp; | |
2823 | resp = copy_supp_rates(hapd, sta, &elems); | |
2824 | if (resp != WLAN_STATUS_SUCCESS) | |
2825 | return resp; | |
9c06f0f6 VN |
2826 | |
2827 | resp = check_multi_ap(hapd, sta, elems.multi_ap, elems.multi_ap_len); | |
2828 | if (resp != WLAN_STATUS_SUCCESS) | |
2829 | return resp; | |
2830 | ||
d45354be | 2831 | #ifdef CONFIG_IEEE80211N |
baae4cb9 | 2832 | resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities); |
5586f500 JM |
2833 | if (resp != WLAN_STATUS_SUCCESS) |
2834 | return resp; | |
29448243 JM |
2835 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && |
2836 | !(sta->flags & WLAN_STA_HT)) { | |
2837 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2838 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
2839 | "mandatory HT PHY - reject association"); | |
2840 | return WLAN_STATUS_ASSOC_DENIED_NO_HT; | |
2841 | } | |
d45354be | 2842 | #endif /* CONFIG_IEEE80211N */ |
5586f500 | 2843 | |
de3cdf35 | 2844 | #ifdef CONFIG_IEEE80211AC |
28ffd21c ARN |
2845 | if (hapd->iconf->ieee80211ac) { |
2846 | resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities); | |
2847 | if (resp != WLAN_STATUS_SUCCESS) | |
2848 | return resp; | |
8a458116 | 2849 | |
28ffd21c ARN |
2850 | resp = set_sta_vht_opmode(hapd, sta, elems.vht_opmode_notif); |
2851 | if (resp != WLAN_STATUS_SUCCESS) | |
2852 | return resp; | |
2853 | } | |
8a458116 | 2854 | |
140e850a MP |
2855 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && |
2856 | !(sta->flags & WLAN_STA_VHT)) { | |
2857 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2858 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
2859 | "mandatory VHT PHY - reject association"); | |
13b24a76 | 2860 | return WLAN_STATUS_ASSOC_DENIED_NO_VHT; |
140e850a | 2861 | } |
e7d0e97b YL |
2862 | |
2863 | if (hapd->conf->vendor_vht && !elems.vht_capabilities) { | |
2864 | resp = copy_sta_vendor_vht(hapd, sta, elems.vendor_vht, | |
2865 | elems.vendor_vht_len); | |
2866 | if (resp != WLAN_STATUS_SUCCESS) | |
2867 | return resp; | |
2868 | } | |
de3cdf35 | 2869 | #endif /* CONFIG_IEEE80211AC */ |
78d35b16 JC |
2870 | #ifdef CONFIG_IEEE80211AX |
2871 | if (hapd->iconf->ieee80211ax) { | |
2872 | resp = copy_sta_he_capab(hapd, sta, elems.he_capabilities, | |
2873 | elems.he_capabilities_len); | |
2874 | if (resp != WLAN_STATUS_SUCCESS) | |
2875 | return resp; | |
2876 | } | |
2877 | #endif /* CONFIG_IEEE80211AX */ | |
de3cdf35 | 2878 | |
94ddef3e JM |
2879 | #ifdef CONFIG_P2P |
2880 | if (elems.p2p) { | |
2881 | wpabuf_free(sta->p2p_ie); | |
2882 | sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, | |
2883 | P2P_IE_VENDOR_TYPE); | |
2884 | if (sta->p2p_ie) | |
2885 | p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); | |
2886 | } else { | |
2887 | wpabuf_free(sta->p2p_ie); | |
2888 | sta->p2p_ie = NULL; | |
2889 | } | |
2890 | #endif /* CONFIG_P2P */ | |
2891 | ||
6fc6879b JM |
2892 | if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { |
2893 | wpa_ie = elems.rsn_ie; | |
2894 | wpa_ie_len = elems.rsn_ie_len; | |
2895 | } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && | |
2896 | elems.wpa_ie) { | |
2897 | wpa_ie = elems.wpa_ie; | |
2898 | wpa_ie_len = elems.wpa_ie_len; | |
2899 | } else { | |
2900 | wpa_ie = NULL; | |
2901 | wpa_ie_len = 0; | |
2902 | } | |
5586f500 | 2903 | |
ad08c363 | 2904 | #ifdef CONFIG_WPS |
17f6b900 | 2905 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
c47cf42e JM |
2906 | if (hapd->conf->wps_state && elems.wps_ie) { |
2907 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " | |
2908 | "Request - assume WPS is used"); | |
2909 | sta->flags |= WLAN_STA_WPS; | |
2910 | wpabuf_free(sta->wps_ie); | |
16e46ec0 JM |
2911 | sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
2912 | WPS_IE_VENDOR_TYPE); | |
17f6b900 JM |
2913 | if (sta->wps_ie && wps_is_20(sta->wps_ie)) { |
2914 | wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); | |
2915 | sta->flags |= WLAN_STA_WPS2; | |
2916 | } | |
c47cf42e JM |
2917 | wpa_ie = NULL; |
2918 | wpa_ie_len = 0; | |
54f489be JM |
2919 | if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) { |
2920 | wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in " | |
2921 | "(Re)Association Request - reject"); | |
2922 | return WLAN_STATUS_INVALID_IE; | |
2923 | } | |
c47cf42e JM |
2924 | } else if (hapd->conf->wps_state && wpa_ie == NULL) { |
2925 | wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " | |
2926 | "(Re)Association Request - possible WPS use"); | |
2927 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
ad08c363 JM |
2928 | } else |
2929 | #endif /* CONFIG_WPS */ | |
6fc6879b | 2930 | if (hapd->conf->wpa && wpa_ie == NULL) { |
5586f500 JM |
2931 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
2932 | HOSTAPD_LEVEL_INFO, | |
2933 | "No WPA/RSN IE in association request"); | |
2934 | return WLAN_STATUS_INVALID_IE; | |
6fc6879b JM |
2935 | } |
2936 | ||
2937 | if (hapd->conf->wpa && wpa_ie) { | |
2938 | int res; | |
2939 | wpa_ie -= 2; | |
2940 | wpa_ie_len += 2; | |
2941 | if (sta->wpa_sm == NULL) | |
2942 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e JM |
2943 | sta->addr, |
2944 | p2p_dev_addr); | |
6fc6879b | 2945 | if (sta->wpa_sm == NULL) { |
5586f500 JM |
2946 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " |
2947 | "state machine"); | |
2948 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 2949 | } |
36536639 | 2950 | wpa_auth_set_auth_alg(sta->wpa_sm, sta->auth_alg); |
6fc6879b | 2951 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, |
2c129a1b | 2952 | hapd->iface->freq, |
6fc6879b | 2953 | wpa_ie, wpa_ie_len, |
09368515 JM |
2954 | elems.mdie, elems.mdie_len, |
2955 | elems.owe_dh, elems.owe_dh_len); | |
ffb62f22 | 2956 | resp = wpa_res_to_status_code(res); |
6fc6879b | 2957 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 2958 | return resp; |
f3f7540e | 2959 | #ifdef CONFIG_IEEE80211W |
edb28006 AK |
2960 | if ((sta->flags & (WLAN_STA_ASSOC | WLAN_STA_MFP)) == |
2961 | (WLAN_STA_ASSOC | WLAN_STA_MFP) && | |
2962 | !sta->sa_query_timed_out && | |
45c94154 JM |
2963 | sta->sa_query_count > 0) |
2964 | ap_check_sa_query_timeout(hapd, sta); | |
edb28006 AK |
2965 | if ((sta->flags & (WLAN_STA_ASSOC | WLAN_STA_MFP)) == |
2966 | (WLAN_STA_ASSOC | WLAN_STA_MFP) && | |
2967 | !sta->sa_query_timed_out && | |
8f4617c6 | 2968 | (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { |
5d22a1d5 | 2969 | /* |
93b76319 JM |
2970 | * STA has already been associated with MFP and SA |
2971 | * Query timeout has not been reached. Reject the | |
2972 | * association attempt temporarily and start SA Query, | |
2973 | * if one is not pending. | |
5d22a1d5 JM |
2974 | */ |
2975 | ||
93b76319 JM |
2976 | if (sta->sa_query_count == 0) |
2977 | ap_sta_start_sa_query(hapd, sta); | |
5d22a1d5 | 2978 | |
5586f500 | 2979 | return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; |
5d22a1d5 JM |
2980 | } |
2981 | ||
f3f7540e JM |
2982 | if (wpa_auth_uses_mfp(sta->wpa_sm)) |
2983 | sta->flags |= WLAN_STA_MFP; | |
2984 | else | |
2985 | sta->flags &= ~WLAN_STA_MFP; | |
2986 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b | 2987 | |
4ec1fd8e | 2988 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b JM |
2989 | if (sta->auth_alg == WLAN_AUTH_FT) { |
2990 | if (!reassoc) { | |
2991 | wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " | |
2992 | "to use association (not " | |
2993 | "re-association) with FT auth_alg", | |
2994 | MAC2STR(sta->addr)); | |
5586f500 | 2995 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2996 | } |
2997 | ||
5586f500 JM |
2998 | resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, |
2999 | ies_len); | |
6fc6879b | 3000 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 3001 | return resp; |
6fc6879b | 3002 | } |
4ec1fd8e | 3003 | #endif /* CONFIG_IEEE80211R_AP */ |
5586f500 | 3004 | |
c10347f2 | 3005 | #ifdef CONFIG_SAE |
9d94e4bb JM |
3006 | if (wpa_auth_uses_sae(sta->wpa_sm) && sta->sae && |
3007 | sta->sae->state == SAE_ACCEPTED) | |
3008 | wpa_auth_add_sae_pmkid(sta->wpa_sm, sta->sae->pmkid); | |
3009 | ||
c10347f2 | 3010 | if (wpa_auth_uses_sae(sta->wpa_sm) && |
f2991170 JM |
3011 | sta->auth_alg == WLAN_AUTH_OPEN) { |
3012 | struct rsn_pmksa_cache_entry *sa; | |
3013 | sa = wpa_auth_sta_get_pmksa(sta->wpa_sm); | |
3014 | if (!sa || sa->akmp != WPA_KEY_MGMT_SAE) { | |
3015 | wpa_printf(MSG_DEBUG, | |
3016 | "SAE: No PMKSA cache entry found for " | |
3017 | MACSTR, MAC2STR(sta->addr)); | |
3018 | return WLAN_STATUS_INVALID_PMKID; | |
3019 | } | |
3020 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR | |
3021 | " using PMKSA caching", MAC2STR(sta->addr)); | |
3022 | } else if (wpa_auth_uses_sae(sta->wpa_sm) && | |
3023 | sta->auth_alg != WLAN_AUTH_SAE && | |
3024 | !(sta->auth_alg == WLAN_AUTH_FT && | |
3025 | wpa_auth_uses_ft_sae(sta->wpa_sm))) { | |
c10347f2 JM |
3026 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use " |
3027 | "SAE AKM after non-SAE auth_alg %u", | |
3028 | MAC2STR(sta->addr), sta->auth_alg); | |
3029 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
3030 | } | |
3031 | #endif /* CONFIG_SAE */ | |
3032 | ||
09368515 JM |
3033 | #ifdef CONFIG_OWE |
3034 | if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) && | |
3035 | wpa_auth_sta_key_mgmt(sta->wpa_sm) == WPA_KEY_MGMT_OWE && | |
3036 | elems.owe_dh) { | |
d90f10fa | 3037 | resp = owe_process_assoc_req(hapd, sta, elems.owe_dh, |
09368515 JM |
3038 | elems.owe_dh_len); |
3039 | if (resp != WLAN_STATUS_SUCCESS) | |
3040 | return resp; | |
3041 | } | |
3042 | #endif /* CONFIG_OWE */ | |
3043 | ||
10ec6a5f JM |
3044 | #ifdef CONFIG_DPP2 |
3045 | dpp_pfs_free(sta->dpp_pfs); | |
3046 | sta->dpp_pfs = NULL; | |
3047 | ||
3048 | if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_DPP) && | |
3049 | hapd->conf->dpp_netaccesskey && sta->wpa_sm && | |
3050 | wpa_auth_sta_key_mgmt(sta->wpa_sm) == WPA_KEY_MGMT_DPP && | |
3051 | elems.owe_dh) { | |
3052 | sta->dpp_pfs = dpp_pfs_init( | |
3053 | wpabuf_head(hapd->conf->dpp_netaccesskey), | |
3054 | wpabuf_len(hapd->conf->dpp_netaccesskey)); | |
3055 | if (!sta->dpp_pfs) { | |
3056 | wpa_printf(MSG_DEBUG, | |
3057 | "DPP: Could not initialize PFS"); | |
3058 | /* Try to continue without PFS */ | |
3059 | goto pfs_fail; | |
3060 | } | |
3061 | ||
3062 | if (dpp_pfs_process(sta->dpp_pfs, elems.owe_dh, | |
3063 | elems.owe_dh_len) < 0) { | |
3064 | dpp_pfs_free(sta->dpp_pfs); | |
3065 | sta->dpp_pfs = NULL; | |
3066 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3067 | } | |
3068 | } | |
3069 | ||
3070 | wpa_auth_set_dpp_z(sta->wpa_sm, sta->dpp_pfs ? | |
3071 | sta->dpp_pfs->secret : NULL); | |
3072 | pfs_fail: | |
3073 | #endif /* CONFIG_DPP2 */ | |
3074 | ||
ff36ff00 | 3075 | #ifdef CONFIG_IEEE80211N |
f0c7a986 | 3076 | if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) && |
ff36ff00 | 3077 | wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { |
5586f500 JM |
3078 | hostapd_logger(hapd, sta->addr, |
3079 | HOSTAPD_MODULE_IEEE80211, | |
3080 | HOSTAPD_LEVEL_INFO, | |
3081 | "Station tried to use TKIP with HT " | |
3082 | "association"); | |
3083 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; | |
ff36ff00 JM |
3084 | } |
3085 | #endif /* CONFIG_IEEE80211N */ | |
a14896e8 JM |
3086 | #ifdef CONFIG_HS20 |
3087 | } else if (hapd->conf->osen) { | |
3088 | if (elems.osen == NULL) { | |
3089 | hostapd_logger( | |
3090 | hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
3091 | HOSTAPD_LEVEL_INFO, | |
3092 | "No HS 2.0 OSEN element in association request"); | |
3093 | return WLAN_STATUS_INVALID_IE; | |
3094 | } | |
3095 | ||
3096 | wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association"); | |
3097 | if (sta->wpa_sm == NULL) | |
3098 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
3099 | sta->addr, NULL); | |
3100 | if (sta->wpa_sm == NULL) { | |
3101 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " | |
3102 | "state machine"); | |
3103 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3104 | } | |
3105 | if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm, | |
3106 | elems.osen - 2, elems.osen_len + 2) < 0) | |
3107 | return WLAN_STATUS_INVALID_IE; | |
3108 | #endif /* CONFIG_HS20 */ | |
a8d05fca JM |
3109 | } else |
3110 | wpa_auth_sta_no_wpa(sta->wpa_sm); | |
6fc6879b | 3111 | |
b305c684 | 3112 | #ifdef CONFIG_P2P |
3f4ce13f | 3113 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len); |
b305c684 JM |
3114 | #endif /* CONFIG_P2P */ |
3115 | ||
f403dcd6 JM |
3116 | #ifdef CONFIG_HS20 |
3117 | wpabuf_free(sta->hs20_ie); | |
3118 | if (elems.hs20 && elems.hs20_len > 4) { | |
f3784a6b JM |
3119 | int release; |
3120 | ||
f403dcd6 JM |
3121 | sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, |
3122 | elems.hs20_len - 4); | |
f3784a6b JM |
3123 | release = ((elems.hs20[4] >> 4) & 0x0f) + 1; |
3124 | if (release >= 2 && !wpa_auth_uses_mfp(sta->wpa_sm)) { | |
3125 | wpa_printf(MSG_DEBUG, | |
3126 | "HS 2.0: PMF not negotiated by release %d station " | |
3127 | MACSTR, release, MAC2STR(sta->addr)); | |
3128 | return WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; | |
3129 | } | |
3130 | } else { | |
f403dcd6 | 3131 | sta->hs20_ie = NULL; |
f3784a6b | 3132 | } |
67cca346 JM |
3133 | |
3134 | wpabuf_free(sta->roaming_consortium); | |
3135 | if (elems.roaming_cons_sel) | |
3136 | sta->roaming_consortium = wpabuf_alloc_copy( | |
3137 | elems.roaming_cons_sel + 4, | |
3138 | elems.roaming_cons_sel_len - 4); | |
3139 | else | |
3140 | sta->roaming_consortium = NULL; | |
f403dcd6 JM |
3141 | #endif /* CONFIG_HS20 */ |
3142 | ||
ae667c08 AN |
3143 | #ifdef CONFIG_FST |
3144 | wpabuf_free(sta->mb_ies); | |
3145 | if (hapd->iface->fst) | |
3146 | sta->mb_ies = mb_ies_by_info(&elems.mb_ies); | |
3147 | else | |
3148 | sta->mb_ies = NULL; | |
3149 | #endif /* CONFIG_FST */ | |
3150 | ||
4c572281 | 3151 | #ifdef CONFIG_MBO |
6332aaf3 JM |
3152 | mbo_ap_check_sta_assoc(hapd, sta, &elems); |
3153 | ||
4c572281 JM |
3154 | if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) && |
3155 | elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) && | |
3156 | hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) { | |
3157 | wpa_printf(MSG_INFO, | |
3158 | "MBO: Reject WPA2 association without PMF"); | |
3159 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3160 | } | |
3161 | #endif /* CONFIG_MBO */ | |
3162 | ||
99621dc1 MV |
3163 | #if defined(CONFIG_FILS) && defined(CONFIG_OCV) |
3164 | if (wpa_auth_uses_ocv(sta->wpa_sm) && | |
3165 | (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
3166 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
3167 | sta->auth_alg == WLAN_AUTH_FILS_PK)) { | |
3168 | struct wpa_channel_info ci; | |
3169 | int tx_chanwidth; | |
3170 | int tx_seg1_idx; | |
3171 | ||
3172 | if (hostapd_drv_channel_info(hapd, &ci) != 0) { | |
3173 | wpa_printf(MSG_WARNING, | |
3174 | "Failed to get channel info to validate received OCI in FILS (Re)Association Request frame"); | |
3175 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3176 | } | |
3177 | ||
3178 | if (get_sta_tx_parameters(sta->wpa_sm, | |
3179 | channel_width_to_int(ci.chanwidth), | |
3180 | ci.seg1_idx, &tx_chanwidth, | |
3181 | &tx_seg1_idx) < 0) | |
3182 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3183 | ||
3184 | if (ocv_verify_tx_params(elems.oci, elems.oci_len, &ci, | |
3185 | tx_chanwidth, tx_seg1_idx) != 0) { | |
3186 | wpa_printf(MSG_WARNING, "FILS: %s", ocv_errorstr); | |
3187 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3188 | } | |
3189 | } | |
3190 | #endif /* CONFIG_FILS && CONFIG_OCV */ | |
3191 | ||
adf0478e JM |
3192 | ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes, |
3193 | elems.supp_op_classes_len); | |
3194 | ||
629e1804 DS |
3195 | if ((sta->capability & WLAN_CAPABILITY_RADIO_MEASUREMENT) && |
3196 | elems.rrm_enabled && | |
3197 | elems.rrm_enabled_len >= sizeof(sta->rrm_enabled_capa)) | |
3198 | os_memcpy(sta->rrm_enabled_capa, elems.rrm_enabled, | |
3199 | sizeof(sta->rrm_enabled_capa)); | |
3200 | ||
ba72b4b1 | 3201 | if (elems.power_capab) { |
3202 | sta->min_tx_power = elems.power_capab[0]; | |
3203 | sta->max_tx_power = elems.power_capab[1]; | |
3204 | sta->power_capab = 1; | |
3205 | } else { | |
3206 | sta->power_capab = 0; | |
3207 | } | |
3208 | ||
5586f500 JM |
3209 | return WLAN_STATUS_SUCCESS; |
3210 | } | |
3211 | ||
3212 | ||
3213 | static void send_deauth(struct hostapd_data *hapd, const u8 *addr, | |
3214 | u16 reason_code) | |
3215 | { | |
3216 | int send_len; | |
3217 | struct ieee80211_mgmt reply; | |
3218 | ||
3219 | os_memset(&reply, 0, sizeof(reply)); | |
3220 | reply.frame_control = | |
3221 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); | |
3222 | os_memcpy(reply.da, addr, ETH_ALEN); | |
3223 | os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); | |
3224 | os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); | |
3225 | ||
3226 | send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); | |
3227 | reply.u.deauth.reason_code = host_to_le16(reason_code); | |
3228 | ||
8cfa3527 | 3229 | if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0) |
5586f500 JM |
3230 | wpa_printf(MSG_INFO, "Failed to send deauth: %s", |
3231 | strerror(errno)); | |
3232 | } | |
3233 | ||
3234 | ||
3f81ac07 | 3235 | static int add_associated_sta(struct hostapd_data *hapd, |
4cf5efec | 3236 | struct sta_info *sta, int reassoc) |
3f81ac07 AO |
3237 | { |
3238 | struct ieee80211_ht_capabilities ht_cap; | |
3239 | struct ieee80211_vht_capabilities vht_cap; | |
78d35b16 | 3240 | struct ieee80211_he_capabilities he_cap; |
0e3bd7ac | 3241 | int set = 1; |
3f81ac07 AO |
3242 | |
3243 | /* | |
3244 | * Remove the STA entry to ensure the STA PS state gets cleared and | |
3245 | * configuration gets updated. This is relevant for cases, such as | |
3246 | * FT-over-the-DS, where a station re-associates back to the same AP but | |
3247 | * skips the authentication flow, or if working with a driver that | |
3248 | * does not support full AP client state. | |
0e3bd7ac MV |
3249 | * |
3250 | * Skip this if the STA has already completed FT reassociation and the | |
3251 | * TK has been configured since the TX/RX PN must not be reset to 0 for | |
3252 | * the same key. | |
4cf5efec JM |
3253 | * |
3254 | * FT-over-the-DS has a special case where the STA entry (and as such, | |
3255 | * the TK) has not yet been configured to the driver depending on which | |
3256 | * driver interface is used. For that case, allow add-STA operation to | |
3257 | * be used (instead of set-STA). This is needed to allow mac80211-based | |
3258 | * drivers to accept the STA parameter configuration. Since this is | |
3259 | * after a new FT-over-DS exchange, a new TK has been derived, so key | |
3260 | * reinstallation is not a concern for this case. | |
3f81ac07 | 3261 | */ |
4cf5efec JM |
3262 | wpa_printf(MSG_DEBUG, "Add associated STA " MACSTR |
3263 | " (added_unassoc=%d auth_alg=%u ft_over_ds=%u reassoc=%d authorized=%d ft_tk=%d fils_tk=%d)", | |
3264 | MAC2STR(sta->addr), sta->added_unassoc, sta->auth_alg, | |
3265 | sta->ft_over_ds, reassoc, | |
3266 | !!(sta->flags & WLAN_STA_AUTHORIZED), | |
3267 | wpa_auth_sta_ft_tk_already_set(sta->wpa_sm), | |
3268 | wpa_auth_sta_fils_tk_already_set(sta->wpa_sm)); | |
3269 | ||
0e3bd7ac MV |
3270 | if (!sta->added_unassoc && |
3271 | (!(sta->flags & WLAN_STA_AUTHORIZED) || | |
4cf5efec | 3272 | (reassoc && sta->ft_over_ds && sta->auth_alg == WLAN_AUTH_FT) || |
2f1357fb JM |
3273 | (!wpa_auth_sta_ft_tk_already_set(sta->wpa_sm) && |
3274 | !wpa_auth_sta_fils_tk_already_set(sta->wpa_sm)))) { | |
3f81ac07 | 3275 | hostapd_drv_sta_remove(hapd, sta->addr); |
0e3bd7ac MV |
3276 | wpa_auth_sm_event(sta->wpa_sm, WPA_DRV_STA_REMOVED); |
3277 | set = 0; | |
4cf5efec JM |
3278 | |
3279 | /* Do not allow the FT-over-DS exception to be used more than | |
3280 | * once per authentication exchange to guarantee a new TK is | |
3281 | * used here */ | |
3282 | sta->ft_over_ds = 0; | |
0e3bd7ac | 3283 | } |
3f81ac07 AO |
3284 | |
3285 | #ifdef CONFIG_IEEE80211N | |
3286 | if (sta->flags & WLAN_STA_HT) | |
3287 | hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); | |
3288 | #endif /* CONFIG_IEEE80211N */ | |
3289 | #ifdef CONFIG_IEEE80211AC | |
3290 | if (sta->flags & WLAN_STA_VHT) | |
3291 | hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap); | |
3292 | #endif /* CONFIG_IEEE80211AC */ | |
78d35b16 JC |
3293 | #ifdef CONFIG_IEEE80211AX |
3294 | if (sta->flags & WLAN_STA_HE) { | |
3295 | hostapd_get_he_capab(hapd, sta->he_capab, &he_cap, | |
3296 | sta->he_capab_len); | |
3297 | } | |
3298 | #endif /* CONFIG_IEEE80211AX */ | |
3f81ac07 AO |
3299 | |
3300 | /* | |
3301 | * Add the station with forced WLAN_STA_ASSOC flag. The sta->flags | |
3302 | * will be set when the ACK frame for the (Re)Association Response frame | |
3303 | * is processed (TX status driver event). | |
3304 | */ | |
3305 | if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability, | |
3306 | sta->supported_rates, sta->supported_rates_len, | |
3307 | sta->listen_interval, | |
3308 | sta->flags & WLAN_STA_HT ? &ht_cap : NULL, | |
3309 | sta->flags & WLAN_STA_VHT ? &vht_cap : NULL, | |
78d35b16 JC |
3310 | sta->flags & WLAN_STA_HE ? &he_cap : NULL, |
3311 | sta->flags & WLAN_STA_HE ? sta->he_capab_len : 0, | |
3f81ac07 | 3312 | sta->flags | WLAN_STA_ASSOC, sta->qosinfo, |
ae33239c | 3313 | sta->vht_opmode, sta->p2p_ie ? 1 : 0, |
0e3bd7ac | 3314 | set)) { |
3f81ac07 AO |
3315 | hostapd_logger(hapd, sta->addr, |
3316 | HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_NOTICE, | |
3317 | "Could not %s STA to kernel driver", | |
0e3bd7ac | 3318 | set ? "set" : "add"); |
3f81ac07 AO |
3319 | |
3320 | if (sta->added_unassoc) { | |
3321 | hostapd_drv_sta_remove(hapd, sta->addr); | |
3322 | sta->added_unassoc = 0; | |
3323 | } | |
3324 | ||
3325 | return -1; | |
3326 | } | |
3327 | ||
3328 | sta->added_unassoc = 0; | |
3329 | ||
3330 | return 0; | |
3331 | } | |
3332 | ||
3333 | ||
bb598c3b | 3334 | static u16 send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, |
05e5e615 | 3335 | const u8 *addr, u16 status_code, int reassoc, |
076f1ea1 | 3336 | const u8 *ies, size_t ies_len, int rssi) |
5586f500 JM |
3337 | { |
3338 | int send_len; | |
91d91abf JM |
3339 | u8 *buf; |
3340 | size_t buflen; | |
5586f500 JM |
3341 | struct ieee80211_mgmt *reply; |
3342 | u8 *p; | |
91d91abf | 3343 | u16 res = WLAN_STATUS_SUCCESS; |
5586f500 | 3344 | |
91d91abf JM |
3345 | buflen = sizeof(struct ieee80211_mgmt) + 1024; |
3346 | #ifdef CONFIG_FILS | |
84bb12aa | 3347 | if (sta && sta->fils_hlp_resp) |
91d91abf | 3348 | buflen += wpabuf_len(sta->fils_hlp_resp); |
831d8c9c JM |
3349 | if (sta) |
3350 | buflen += 150; | |
91d91abf | 3351 | #endif /* CONFIG_FILS */ |
09368515 JM |
3352 | #ifdef CONFIG_OWE |
3353 | if (sta && (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE)) | |
d8c8d857 | 3354 | buflen += 150; |
09368515 | 3355 | #endif /* CONFIG_OWE */ |
10ec6a5f JM |
3356 | #ifdef CONFIG_DPP2 |
3357 | if (sta && sta->dpp_pfs) | |
3358 | buflen += 5 + sta->dpp_pfs->curve->prime_len; | |
3359 | #endif /* CONFIG_DPP2 */ | |
91d91abf JM |
3360 | buf = os_zalloc(buflen); |
3361 | if (!buf) { | |
3362 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3363 | goto done; | |
3364 | } | |
5586f500 JM |
3365 | reply = (struct ieee80211_mgmt *) buf; |
3366 | reply->frame_control = | |
3367 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
3368 | (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : | |
3369 | WLAN_FC_STYPE_ASSOC_RESP)); | |
05e5e615 | 3370 | os_memcpy(reply->da, addr, ETH_ALEN); |
5586f500 JM |
3371 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); |
3372 | os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); | |
3373 | ||
3374 | send_len = IEEE80211_HDRLEN; | |
3375 | send_len += sizeof(reply->u.assoc_resp); | |
3376 | reply->u.assoc_resp.capab_info = | |
f41ded6f | 3377 | host_to_le16(hostapd_own_capab_info(hapd)); |
5586f500 | 3378 | reply->u.assoc_resp.status_code = host_to_le16(status_code); |
05e5e615 DL |
3379 | |
3380 | reply->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0) | | |
3381 | BIT(14) | BIT(15)); | |
5586f500 JM |
3382 | /* Supported rates */ |
3383 | p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); | |
3384 | /* Extended supported rates */ | |
3385 | p = hostapd_eid_ext_supp_rates(hapd, p); | |
5586f500 | 3386 | |
076f1ea1 BL |
3387 | #ifdef CONFIG_MBO |
3388 | if (status_code == WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS && | |
3389 | rssi != 0) { | |
3390 | int delta = hapd->iconf->rssi_reject_assoc_rssi - rssi; | |
3391 | ||
3392 | p = hostapd_eid_mbo_rssi_assoc_rej(hapd, p, buf + buflen - p, | |
3393 | delta); | |
3394 | } | |
3395 | #endif /* CONFIG_MBO */ | |
3396 | ||
4ec1fd8e | 3397 | #ifdef CONFIG_IEEE80211R_AP |
05e5e615 | 3398 | if (sta && status_code == WLAN_STATUS_SUCCESS) { |
5586f500 JM |
3399 | /* IEEE 802.11r: Mobility Domain Information, Fast BSS |
3400 | * Transition Information, RSN, [RIC Response] */ | |
3401 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, | |
91d91abf | 3402 | buf + buflen - p, |
5586f500 | 3403 | sta->auth_alg, ies, ies_len); |
2cf36d60 JM |
3404 | if (!p) { |
3405 | wpa_printf(MSG_DEBUG, | |
3406 | "FT: Failed to write AssocResp IEs"); | |
3407 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3408 | goto done; | |
3409 | } | |
5586f500 | 3410 | } |
4ec1fd8e | 3411 | #endif /* CONFIG_IEEE80211R_AP */ |
831d8c9c JM |
3412 | #ifdef CONFIG_FILS |
3413 | if (sta && status_code == WLAN_STATUS_SUCCESS && | |
3414 | (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
3415 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
3416 | sta->auth_alg == WLAN_AUTH_FILS_PK)) | |
3417 | p = wpa_auth_write_assoc_resp_fils(sta->wpa_sm, p, | |
3418 | buf + buflen - p, | |
3419 | ies, ies_len); | |
3420 | #endif /* CONFIG_FILS */ | |
5586f500 | 3421 | |
d8c8d857 | 3422 | #ifdef CONFIG_OWE |
8fc6d884 JM |
3423 | if (sta && status_code == WLAN_STATUS_SUCCESS && |
3424 | (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE)) | |
d8c8d857 JM |
3425 | p = wpa_auth_write_assoc_resp_owe(sta->wpa_sm, p, |
3426 | buf + buflen - p, | |
3427 | ies, ies_len); | |
3428 | #endif /* CONFIG_OWE */ | |
3429 | ||
5586f500 | 3430 | #ifdef CONFIG_IEEE80211W |
05e5e615 | 3431 | if (sta && status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) |
5586f500 JM |
3432 | p = hostapd_eid_assoc_comeback_time(hapd, sta, p); |
3433 | #endif /* CONFIG_IEEE80211W */ | |
3434 | ||
1bc774a1 JM |
3435 | #ifdef CONFIG_IEEE80211N |
3436 | p = hostapd_eid_ht_capabilities(hapd, p); | |
3437 | p = hostapd_eid_ht_operation(hapd, p); | |
3438 | #endif /* CONFIG_IEEE80211N */ | |
3439 | ||
14708b50 | 3440 | #ifdef CONFIG_IEEE80211AC |
e7d0e97b | 3441 | if (hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) { |
fc72a48a T |
3442 | u32 nsts = 0, sta_nsts; |
3443 | ||
05e5e615 | 3444 | if (sta && hapd->conf->use_sta_nsts && sta->vht_capabilities) { |
fc72a48a T |
3445 | struct ieee80211_vht_capabilities *capa; |
3446 | ||
3447 | nsts = (hapd->iface->conf->vht_capab >> | |
3448 | VHT_CAP_BEAMFORMEE_STS_OFFSET) & 7; | |
3449 | capa = sta->vht_capabilities; | |
3450 | sta_nsts = (le_to_host32(capa->vht_capabilities_info) >> | |
3451 | VHT_CAP_BEAMFORMEE_STS_OFFSET) & 7; | |
3452 | ||
3453 | if (nsts < sta_nsts) | |
3454 | nsts = 0; | |
3455 | else | |
3456 | nsts = sta_nsts; | |
3457 | } | |
3458 | p = hostapd_eid_vht_capabilities(hapd, p, nsts); | |
e7d0e97b YL |
3459 | p = hostapd_eid_vht_operation(hapd, p); |
3460 | } | |
14708b50 MP |
3461 | #endif /* CONFIG_IEEE80211AC */ |
3462 | ||
78d35b16 JC |
3463 | #ifdef CONFIG_IEEE80211AX |
3464 | if (hapd->iconf->ieee80211ax) { | |
3465 | p = hostapd_eid_he_capab(hapd, p); | |
3466 | p = hostapd_eid_he_operation(hapd, p); | |
3467 | p = hostapd_eid_spatial_reuse(hapd, p); | |
3468 | p = hostapd_eid_he_mu_edca_parameter_set(hapd, p); | |
3469 | } | |
3470 | #endif /* CONFIG_IEEE80211AX */ | |
3471 | ||
1161ff1e | 3472 | p = hostapd_eid_ext_capab(hapd, p); |
b6668734 | 3473 | p = hostapd_eid_bss_max_idle_period(hapd, p); |
05e5e615 | 3474 | if (sta && sta->qos_map_enabled) |
c551700f | 3475 | p = hostapd_eid_qos_map_set(hapd, p); |
1161ff1e | 3476 | |
347827ff AN |
3477 | #ifdef CONFIG_FST |
3478 | if (hapd->iface->fst_ies) { | |
3479 | os_memcpy(p, wpabuf_head(hapd->iface->fst_ies), | |
3480 | wpabuf_len(hapd->iface->fst_ies)); | |
3481 | p += wpabuf_len(hapd->iface->fst_ies); | |
3482 | } | |
3483 | #endif /* CONFIG_FST */ | |
3484 | ||
b750dde6 JM |
3485 | #ifdef CONFIG_OWE |
3486 | if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) && | |
3487 | sta && sta->owe_ecdh && status_code == WLAN_STATUS_SUCCESS && | |
3488 | wpa_auth_sta_key_mgmt(sta->wpa_sm) == WPA_KEY_MGMT_OWE) { | |
3489 | struct wpabuf *pub; | |
3490 | ||
3491 | pub = crypto_ecdh_get_pubkey(sta->owe_ecdh, 0); | |
3492 | if (!pub) { | |
3493 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3494 | goto done; | |
3495 | } | |
3496 | /* OWE Diffie-Hellman Parameter element */ | |
3497 | *p++ = WLAN_EID_EXTENSION; /* Element ID */ | |
3498 | *p++ = 1 + 2 + wpabuf_len(pub); /* Length */ | |
3499 | *p++ = WLAN_EID_EXT_OWE_DH_PARAM; /* Element ID Extension */ | |
3500 | WPA_PUT_LE16(p, sta->owe_group); | |
3501 | p += 2; | |
3502 | os_memcpy(p, wpabuf_head(pub), wpabuf_len(pub)); | |
3503 | p += wpabuf_len(pub); | |
3504 | wpabuf_free(pub); | |
3505 | } | |
3506 | #endif /* CONFIG_OWE */ | |
3507 | ||
10ec6a5f JM |
3508 | #ifdef CONFIG_DPP2 |
3509 | if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_DPP) && | |
3510 | sta && sta->dpp_pfs && status_code == WLAN_STATUS_SUCCESS && | |
3511 | wpa_auth_sta_key_mgmt(sta->wpa_sm) == WPA_KEY_MGMT_DPP) { | |
3512 | os_memcpy(p, wpabuf_head(sta->dpp_pfs->ie), | |
3513 | wpabuf_len(sta->dpp_pfs->ie)); | |
3514 | p += wpabuf_len(sta->dpp_pfs->ie); | |
3515 | } | |
3516 | #endif /* CONFIG_DPP2 */ | |
3517 | ||
e7d0e97b | 3518 | #ifdef CONFIG_IEEE80211AC |
05e5e615 | 3519 | if (sta && hapd->conf->vendor_vht && (sta->flags & WLAN_STA_VENDOR_VHT)) |
e7d0e97b YL |
3520 | p = hostapd_eid_vendor_vht(hapd, p); |
3521 | #endif /* CONFIG_IEEE80211AC */ | |
3522 | ||
05e5e615 | 3523 | if (sta && (sta->flags & WLAN_STA_WMM)) |
1bc774a1 JM |
3524 | p = hostapd_eid_wmm(hapd, p); |
3525 | ||
ed7a09f9 | 3526 | #ifdef CONFIG_WPS |
05e5e615 DL |
3527 | if (sta && |
3528 | ((sta->flags & WLAN_STA_WPS) || | |
3529 | ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa))) { | |
ed7a09f9 JM |
3530 | struct wpabuf *wps = wps_build_assoc_resp_ie(); |
3531 | if (wps) { | |
3532 | os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps)); | |
3533 | p += wpabuf_len(wps); | |
3534 | wpabuf_free(wps); | |
3535 | } | |
3536 | } | |
3537 | #endif /* CONFIG_WPS */ | |
3538 | ||
9c06f0f6 VN |
3539 | if (sta && (sta->flags & WLAN_STA_MULTI_AP)) |
3540 | p = hostapd_eid_multi_ap(hapd, p); | |
3541 | ||
8ccbe415 | 3542 | #ifdef CONFIG_P2P |
05e5e615 | 3543 | if (sta && sta->p2p_ie && hapd->p2p_group) { |
8ccbe415 JM |
3544 | struct wpabuf *p2p_resp_ie; |
3545 | enum p2p_status_code status; | |
3546 | switch (status_code) { | |
3547 | case WLAN_STATUS_SUCCESS: | |
3548 | status = P2P_SC_SUCCESS; | |
3549 | break; | |
3550 | case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: | |
3551 | status = P2P_SC_FAIL_LIMIT_REACHED; | |
3552 | break; | |
3553 | default: | |
3554 | status = P2P_SC_FAIL_INVALID_PARAMS; | |
3555 | break; | |
3556 | } | |
3557 | p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status); | |
3558 | if (p2p_resp_ie) { | |
3559 | os_memcpy(p, wpabuf_head(p2p_resp_ie), | |
3560 | wpabuf_len(p2p_resp_ie)); | |
3561 | p += wpabuf_len(p2p_resp_ie); | |
3562 | wpabuf_free(p2p_resp_ie); | |
3563 | } | |
3564 | } | |
3565 | #endif /* CONFIG_P2P */ | |
3566 | ||
962473c1 JM |
3567 | #ifdef CONFIG_P2P_MANAGER |
3568 | if (hapd->conf->p2p & P2P_MANAGE) | |
3569 | p = hostapd_eid_p2p_manage(hapd, p); | |
3570 | #endif /* CONFIG_P2P_MANAGER */ | |
3571 | ||
91d91abf | 3572 | p = hostapd_eid_mbo(hapd, p, buf + buflen - p); |
fb9a1c3e | 3573 | |
a9112270 | 3574 | if (hapd->conf->assocresp_elements && |
91d91abf | 3575 | (size_t) (buf + buflen - p) >= |
a9112270 BKB |
3576 | wpabuf_len(hapd->conf->assocresp_elements)) { |
3577 | os_memcpy(p, wpabuf_head(hapd->conf->assocresp_elements), | |
3578 | wpabuf_len(hapd->conf->assocresp_elements)); | |
3579 | p += wpabuf_len(hapd->conf->assocresp_elements); | |
3580 | } | |
3581 | ||
5586f500 JM |
3582 | send_len += p - reply->u.assoc_resp.variable; |
3583 | ||
e73ffa09 | 3584 | #ifdef CONFIG_FILS |
05e5e615 DL |
3585 | if (sta && |
3586 | (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
e73ffa09 JM |
3587 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || |
3588 | sta->auth_alg == WLAN_AUTH_FILS_PK) && | |
3589 | status_code == WLAN_STATUS_SUCCESS) { | |
3590 | struct ieee802_11_elems elems; | |
3591 | ||
3592 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) == | |
91d91abf JM |
3593 | ParseFailed || !elems.fils_session) { |
3594 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3595 | goto done; | |
3596 | } | |
e73ffa09 JM |
3597 | |
3598 | /* FILS Session */ | |
3599 | *p++ = WLAN_EID_EXTENSION; /* Element ID */ | |
3600 | *p++ = 1 + FILS_SESSION_LEN; /* Length */ | |
3601 | *p++ = WLAN_EID_EXT_FILS_SESSION; /* Element ID Extension */ | |
3602 | os_memcpy(p, elems.fils_session, FILS_SESSION_LEN); | |
3603 | send_len += 2 + 1 + FILS_SESSION_LEN; | |
3604 | ||
3605 | send_len = fils_encrypt_assoc(sta->wpa_sm, buf, send_len, | |
91d91abf JM |
3606 | buflen, sta->fils_hlp_resp); |
3607 | if (send_len < 0) { | |
3608 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3609 | goto done; | |
3610 | } | |
e73ffa09 JM |
3611 | } |
3612 | #endif /* CONFIG_FILS */ | |
3613 | ||
bb598c3b | 3614 | if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0) { |
5586f500 JM |
3615 | wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", |
3616 | strerror(errno)); | |
91d91abf | 3617 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; |
bb598c3b AB |
3618 | } |
3619 | ||
91d91abf JM |
3620 | done: |
3621 | os_free(buf); | |
3622 | return res; | |
5586f500 JM |
3623 | } |
3624 | ||
3625 | ||
33c8bbd8 | 3626 | #ifdef CONFIG_OWE |
79ce2d51 AP |
3627 | u8 * owe_assoc_req_process(struct hostapd_data *hapd, struct sta_info *sta, |
3628 | const u8 *owe_dh, u8 owe_dh_len, | |
3629 | u8 *owe_buf, size_t owe_buf_len, u16 *reason) | |
33c8bbd8 | 3630 | { |
a22e235f AP |
3631 | #ifdef CONFIG_TESTING_OPTIONS |
3632 | if (hapd->conf->own_ie_override) { | |
3633 | wpa_printf(MSG_DEBUG, "OWE: Using IE override"); | |
3634 | *reason = WLAN_STATUS_SUCCESS; | |
3635 | return wpa_auth_write_assoc_resp_owe(sta->wpa_sm, owe_buf, | |
3636 | owe_buf_len, NULL, 0); | |
3637 | } | |
3638 | #endif /* CONFIG_TESTING_OPTIONS */ | |
3639 | ||
cd483be2 AP |
3640 | if (wpa_auth_sta_get_pmksa(sta->wpa_sm)) { |
3641 | wpa_printf(MSG_DEBUG, "OWE: Using PMKSA caching"); | |
3642 | owe_buf = wpa_auth_write_assoc_resp_owe(sta->wpa_sm, owe_buf, | |
3643 | owe_buf_len, NULL, 0); | |
3644 | *reason = WLAN_STATUS_SUCCESS; | |
3645 | return owe_buf; | |
3646 | } | |
3647 | ||
33c8bbd8 AKP |
3648 | *reason = owe_process_assoc_req(hapd, sta, owe_dh, owe_dh_len); |
3649 | if (*reason != WLAN_STATUS_SUCCESS) | |
3650 | return NULL; | |
33c8bbd8 | 3651 | |
af65ef28 AP |
3652 | owe_buf = wpa_auth_write_assoc_resp_owe(sta->wpa_sm, owe_buf, |
3653 | owe_buf_len, NULL, 0); | |
3654 | ||
f5701cc6 | 3655 | if (sta->owe_ecdh && owe_buf) { |
759da93a AP |
3656 | struct wpabuf *pub; |
3657 | ||
3658 | pub = crypto_ecdh_get_pubkey(sta->owe_ecdh, 0); | |
3659 | if (!pub) { | |
3660 | *reason = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3661 | return owe_buf; | |
3662 | } | |
3663 | ||
3664 | /* OWE Diffie-Hellman Parameter element */ | |
3665 | *owe_buf++ = WLAN_EID_EXTENSION; /* Element ID */ | |
3666 | *owe_buf++ = 1 + 2 + wpabuf_len(pub); /* Length */ | |
3667 | *owe_buf++ = WLAN_EID_EXT_OWE_DH_PARAM; /* Element ID Extension | |
3668 | */ | |
3669 | WPA_PUT_LE16(owe_buf, sta->owe_group); | |
3670 | owe_buf += 2; | |
3671 | os_memcpy(owe_buf, wpabuf_head(pub), wpabuf_len(pub)); | |
3672 | owe_buf += wpabuf_len(pub); | |
3673 | wpabuf_free(pub); | |
3674 | } | |
3675 | ||
33c8bbd8 AKP |
3676 | return owe_buf; |
3677 | } | |
3678 | #endif /* CONFIG_OWE */ | |
3679 | ||
3680 | ||
91d91abf JM |
3681 | #ifdef CONFIG_FILS |
3682 | ||
3683 | void fils_hlp_finish_assoc(struct hostapd_data *hapd, struct sta_info *sta) | |
3684 | { | |
3685 | u16 reply_res; | |
3686 | ||
3687 | wpa_printf(MSG_DEBUG, "FILS: Finish association with " MACSTR, | |
3688 | MAC2STR(sta->addr)); | |
3689 | eloop_cancel_timeout(fils_hlp_timeout, hapd, sta); | |
3690 | if (!sta->fils_pending_assoc_req) | |
3691 | return; | |
3692 | reply_res = send_assoc_resp(hapd, sta, sta->addr, WLAN_STATUS_SUCCESS, | |
3693 | sta->fils_pending_assoc_is_reassoc, | |
3694 | sta->fils_pending_assoc_req, | |
076f1ea1 | 3695 | sta->fils_pending_assoc_req_len, 0); |
91d91abf JM |
3696 | os_free(sta->fils_pending_assoc_req); |
3697 | sta->fils_pending_assoc_req = NULL; | |
3698 | sta->fils_pending_assoc_req_len = 0; | |
3699 | wpabuf_free(sta->fils_hlp_resp); | |
3700 | sta->fils_hlp_resp = NULL; | |
3701 | wpabuf_free(sta->hlp_dhcp_discover); | |
3702 | sta->hlp_dhcp_discover = NULL; | |
3703 | ||
3704 | /* | |
fd35ed5b IP |
3705 | * Remove the station in case transmission of a success response fails. |
3706 | * At this point the station was already added associated to the driver. | |
91d91abf | 3707 | */ |
fd35ed5b | 3708 | if (reply_res != WLAN_STATUS_SUCCESS) |
91d91abf | 3709 | hostapd_drv_sta_remove(hapd, sta->addr); |
91d91abf JM |
3710 | } |
3711 | ||
3712 | ||
3713 | void fils_hlp_timeout(void *eloop_ctx, void *eloop_data) | |
3714 | { | |
3715 | struct hostapd_data *hapd = eloop_ctx; | |
3716 | struct sta_info *sta = eloop_data; | |
3717 | ||
3718 | wpa_printf(MSG_DEBUG, | |
3719 | "FILS: HLP response timeout - continue with association response for " | |
3720 | MACSTR, MAC2STR(sta->addr)); | |
8b5ddda5 JM |
3721 | if (sta->fils_drv_assoc_finish) |
3722 | hostapd_notify_assoc_fils_finish(hapd, sta); | |
3723 | else | |
3724 | fils_hlp_finish_assoc(hapd, sta); | |
91d91abf JM |
3725 | } |
3726 | ||
3727 | #endif /* CONFIG_FILS */ | |
3728 | ||
3729 | ||
5586f500 | 3730 | static void handle_assoc(struct hostapd_data *hapd, |
b57e086c | 3731 | const struct ieee80211_mgmt *mgmt, size_t len, |
076f1ea1 | 3732 | int reassoc, int rssi) |
5586f500 | 3733 | { |
38cb0a2d | 3734 | u16 capab_info, listen_interval, seq_ctrl, fc; |
bb598c3b | 3735 | u16 resp = WLAN_STATUS_SUCCESS, reply_res; |
b57e086c | 3736 | const u8 *pos; |
5586f500 JM |
3737 | int left, i; |
3738 | struct sta_info *sta; | |
78815f3d | 3739 | u8 *tmp = NULL; |
53d17144 DL |
3740 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
3741 | char *identity = NULL; | |
3742 | char *radius_cui = NULL; | |
91d91abf JM |
3743 | #ifdef CONFIG_FILS |
3744 | int delay_assoc = 0; | |
3745 | #endif /* CONFIG_FILS */ | |
5586f500 JM |
3746 | |
3747 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : | |
3748 | sizeof(mgmt->u.assoc_req))) { | |
61323e70 JM |
3749 | wpa_printf(MSG_INFO, "handle_assoc(reassoc=%d) - too short payload (len=%lu)", |
3750 | reassoc, (unsigned long) len); | |
5586f500 JM |
3751 | return; |
3752 | } | |
3753 | ||
c2aff6b1 JB |
3754 | #ifdef CONFIG_TESTING_OPTIONS |
3755 | if (reassoc) { | |
06df2aa6 | 3756 | if (hapd->iconf->ignore_reassoc_probability > 0.0 && |
c2aff6b1 JB |
3757 | drand48() < hapd->iconf->ignore_reassoc_probability) { |
3758 | wpa_printf(MSG_INFO, | |
3759 | "TESTING: ignoring reassoc request from " | |
3760 | MACSTR, MAC2STR(mgmt->sa)); | |
3761 | return; | |
3762 | } | |
3763 | } else { | |
06df2aa6 | 3764 | if (hapd->iconf->ignore_assoc_probability > 0.0 && |
c2aff6b1 JB |
3765 | drand48() < hapd->iconf->ignore_assoc_probability) { |
3766 | wpa_printf(MSG_INFO, | |
3767 | "TESTING: ignoring assoc request from " | |
3768 | MACSTR, MAC2STR(mgmt->sa)); | |
3769 | return; | |
3770 | } | |
3771 | } | |
3772 | #endif /* CONFIG_TESTING_OPTIONS */ | |
3773 | ||
38cb0a2d IP |
3774 | fc = le_to_host16(mgmt->frame_control); |
3775 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
3776 | ||
5586f500 JM |
3777 | if (reassoc) { |
3778 | capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); | |
3779 | listen_interval = le_to_host16( | |
3780 | mgmt->u.reassoc_req.listen_interval); | |
3781 | wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR | |
3782 | " capab_info=0x%02x listen_interval=%d current_ap=" | |
38cb0a2d | 3783 | MACSTR " seq_ctrl=0x%x%s", |
5586f500 | 3784 | MAC2STR(mgmt->sa), capab_info, listen_interval, |
38cb0a2d IP |
3785 | MAC2STR(mgmt->u.reassoc_req.current_ap), |
3786 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
3787 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); |
3788 | pos = mgmt->u.reassoc_req.variable; | |
3789 | } else { | |
3790 | capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); | |
3791 | listen_interval = le_to_host16( | |
3792 | mgmt->u.assoc_req.listen_interval); | |
3793 | wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR | |
38cb0a2d IP |
3794 | " capab_info=0x%02x listen_interval=%d " |
3795 | "seq_ctrl=0x%x%s", | |
3796 | MAC2STR(mgmt->sa), capab_info, listen_interval, | |
3797 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
3798 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); |
3799 | pos = mgmt->u.assoc_req.variable; | |
3800 | } | |
3801 | ||
3802 | sta = ap_get_sta(hapd, mgmt->sa); | |
4ec1fd8e | 3803 | #ifdef CONFIG_IEEE80211R_AP |
5586f500 JM |
3804 | if (sta && sta->auth_alg == WLAN_AUTH_FT && |
3805 | (sta->flags & WLAN_STA_AUTH) == 0) { | |
3806 | wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " | |
3807 | "prior to authentication since it is using " | |
3808 | "over-the-DS FT", MAC2STR(mgmt->sa)); | |
bb598c3b AB |
3809 | |
3810 | /* | |
3811 | * Mark station as authenticated, to avoid adding station | |
3812 | * entry in the driver as associated and not authenticated | |
3813 | */ | |
3814 | sta->flags |= WLAN_STA_AUTH; | |
5586f500 | 3815 | } else |
4ec1fd8e | 3816 | #endif /* CONFIG_IEEE80211R_AP */ |
5586f500 | 3817 | if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { |
05e5e615 DL |
3818 | if (hapd->iface->current_mode && |
3819 | hapd->iface->current_mode->mode == | |
3820 | HOSTAPD_MODE_IEEE80211AD) { | |
53d17144 DL |
3821 | int acl_res; |
3822 | u32 session_timeout, acct_interim_interval; | |
3823 | struct vlan_description vlan_id; | |
3824 | ||
3825 | acl_res = ieee802_11_allowed_address( | |
3826 | hapd, mgmt->sa, (const u8 *) mgmt, len, | |
3827 | &session_timeout, &acct_interim_interval, | |
92eb00ae | 3828 | &vlan_id, &psk, &identity, &radius_cui, 0); |
53d17144 | 3829 | if (acl_res == HOSTAPD_ACL_REJECT) { |
92eb00ae T |
3830 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, |
3831 | "Ignore Association Request frame from " | |
3832 | MACSTR " due to ACL reject", | |
3833 | MAC2STR(mgmt->sa)); | |
53d17144 DL |
3834 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
3835 | goto fail; | |
3836 | } | |
3837 | if (acl_res == HOSTAPD_ACL_PENDING) | |
3838 | return; | |
3839 | ||
05e5e615 DL |
3840 | /* DMG/IEEE 802.11ad does not use authentication. |
3841 | * Allocate sta entry upon association. */ | |
3842 | sta = ap_sta_add(hapd, mgmt->sa); | |
3843 | if (!sta) { | |
3844 | hostapd_logger(hapd, mgmt->sa, | |
3845 | HOSTAPD_MODULE_IEEE80211, | |
3846 | HOSTAPD_LEVEL_INFO, | |
3847 | "Failed to add STA"); | |
3848 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
3849 | goto fail; | |
3850 | } | |
3851 | ||
53d17144 DL |
3852 | acl_res = ieee802_11_set_radius_info( |
3853 | hapd, sta, acl_res, session_timeout, | |
3854 | acct_interim_interval, &vlan_id, &psk, | |
3855 | &identity, &radius_cui); | |
3856 | if (acl_res) { | |
3857 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3858 | goto fail; | |
3859 | } | |
3860 | ||
05e5e615 DL |
3861 | hostapd_logger(hapd, sta->addr, |
3862 | HOSTAPD_MODULE_IEEE80211, | |
3863 | HOSTAPD_LEVEL_DEBUG, | |
3864 | "Skip authentication for DMG/IEEE 802.11ad"); | |
3865 | sta->flags |= WLAN_STA_AUTH; | |
3866 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
3867 | sta->auth_alg = WLAN_AUTH_OPEN; | |
3868 | } else { | |
3869 | hostapd_logger(hapd, mgmt->sa, | |
3870 | HOSTAPD_MODULE_IEEE80211, | |
3871 | HOSTAPD_LEVEL_INFO, | |
3872 | "Station tried to associate before authentication (aid=%d flags=0x%x)", | |
3873 | sta ? sta->aid : -1, | |
3874 | sta ? sta->flags : 0); | |
3875 | send_deauth(hapd, mgmt->sa, | |
3876 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); | |
3877 | return; | |
3878 | } | |
5586f500 JM |
3879 | } |
3880 | ||
38cb0a2d IP |
3881 | if ((fc & WLAN_FC_RETRY) && |
3882 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
3883 | sta->last_seq_ctrl == seq_ctrl && | |
fa67debf JM |
3884 | sta->last_subtype == (reassoc ? WLAN_FC_STYPE_REASSOC_REQ : |
3885 | WLAN_FC_STYPE_ASSOC_REQ)) { | |
38cb0a2d IP |
3886 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
3887 | HOSTAPD_LEVEL_DEBUG, | |
3888 | "Drop repeated association frame seq_ctrl=0x%x", | |
3889 | seq_ctrl); | |
3890 | return; | |
3891 | } | |
3892 | sta->last_seq_ctrl = seq_ctrl; | |
3893 | sta->last_subtype = reassoc ? WLAN_FC_STYPE_REASSOC_REQ : | |
3894 | WLAN_FC_STYPE_ASSOC_REQ; | |
3895 | ||
5586f500 | 3896 | if (hapd->tkip_countermeasures) { |
fe12ae77 | 3897 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
5586f500 JM |
3898 | goto fail; |
3899 | } | |
3900 | ||
3901 | if (listen_interval > hapd->conf->max_listen_interval) { | |
3902 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
3903 | HOSTAPD_LEVEL_DEBUG, | |
3904 | "Too large Listen Interval (%d)", | |
3905 | listen_interval); | |
3906 | resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; | |
3907 | goto fail; | |
3908 | } | |
3909 | ||
fb9a1c3e AS |
3910 | #ifdef CONFIG_MBO |
3911 | if (hapd->conf->mbo_enabled && hapd->mbo_assoc_disallow) { | |
3912 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
3913 | goto fail; | |
3914 | } | |
076f1ea1 BL |
3915 | |
3916 | if (hapd->iconf->rssi_reject_assoc_rssi && rssi && | |
2ea1fce3 JM |
3917 | rssi < hapd->iconf->rssi_reject_assoc_rssi && |
3918 | (sta->auth_rssi == 0 || | |
3919 | sta->auth_rssi < hapd->iconf->rssi_reject_assoc_rssi)) { | |
076f1ea1 BL |
3920 | resp = WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS; |
3921 | goto fail; | |
3922 | } | |
fb9a1c3e AS |
3923 | #endif /* CONFIG_MBO */ |
3924 | ||
629e1804 DS |
3925 | /* |
3926 | * sta->capability is used in check_assoc_ies() for RRM enabled | |
3927 | * capability element. | |
3928 | */ | |
3929 | sta->capability = capab_info; | |
3930 | ||
78815f3d JM |
3931 | #ifdef CONFIG_FILS |
3932 | if (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
3933 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
3934 | sta->auth_alg == WLAN_AUTH_FILS_PK) { | |
1489fcf8 JM |
3935 | int res; |
3936 | ||
78815f3d JM |
3937 | /* The end of the payload is encrypted. Need to decrypt it |
3938 | * before parsing. */ | |
3939 | ||
a1f11e34 | 3940 | tmp = os_memdup(pos, left); |
78815f3d JM |
3941 | if (!tmp) { |
3942 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3943 | goto fail; | |
3944 | } | |
78815f3d | 3945 | |
1489fcf8 JM |
3946 | res = fils_decrypt_assoc(sta->wpa_sm, sta->fils_session, mgmt, |
3947 | len, tmp, left); | |
3948 | if (res < 0) { | |
78815f3d JM |
3949 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
3950 | goto fail; | |
3951 | } | |
3952 | pos = tmp; | |
1489fcf8 | 3953 | left = res; |
78815f3d JM |
3954 | } |
3955 | #endif /* CONFIG_FILS */ | |
3956 | ||
5586f500 JM |
3957 | /* followed by SSID and Supported rates; and HT capabilities if 802.11n |
3958 | * is used */ | |
3959 | resp = check_assoc_ies(hapd, sta, pos, left, reassoc); | |
3960 | if (resp != WLAN_STATUS_SUCCESS) | |
3961 | goto fail; | |
3962 | ||
3963 | if (hostapd_get_aid(hapd, sta) < 0) { | |
3964 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
3965 | HOSTAPD_LEVEL_INFO, "No room for more AIDs"); | |
3966 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
3967 | goto fail; | |
3968 | } | |
3969 | ||
5586f500 JM |
3970 | sta->listen_interval = listen_interval; |
3971 | ||
28d12641 AKP |
3972 | if (hapd->iface->current_mode && |
3973 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) | |
6fc6879b JM |
3974 | sta->flags |= WLAN_STA_NONERP; |
3975 | for (i = 0; i < sta->supported_rates_len; i++) { | |
3976 | if ((sta->supported_rates[i] & 0x7f) > 22) { | |
3977 | sta->flags &= ~WLAN_STA_NONERP; | |
3978 | break; | |
3979 | } | |
3980 | } | |
3981 | if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { | |
3982 | sta->nonerp_set = 1; | |
3983 | hapd->iface->num_sta_non_erp++; | |
3984 | if (hapd->iface->num_sta_non_erp == 1) | |
3985 | ieee802_11_set_beacons(hapd->iface); | |
3986 | } | |
3987 | ||
3988 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && | |
3989 | !sta->no_short_slot_time_set) { | |
3990 | sta->no_short_slot_time_set = 1; | |
3991 | hapd->iface->num_sta_no_short_slot_time++; | |
28d12641 AKP |
3992 | if (hapd->iface->current_mode && |
3993 | hapd->iface->current_mode->mode == | |
6fc6879b JM |
3994 | HOSTAPD_MODE_IEEE80211G && |
3995 | hapd->iface->num_sta_no_short_slot_time == 1) | |
3996 | ieee802_11_set_beacons(hapd->iface); | |
3997 | } | |
3998 | ||
3999 | if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
4000 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
4001 | else | |
4002 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
4003 | ||
4004 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
4005 | !sta->no_short_preamble_set) { | |
4006 | sta->no_short_preamble_set = 1; | |
4007 | hapd->iface->num_sta_no_short_preamble++; | |
28d12641 AKP |
4008 | if (hapd->iface->current_mode && |
4009 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G | |
6fc6879b JM |
4010 | && hapd->iface->num_sta_no_short_preamble == 1) |
4011 | ieee802_11_set_beacons(hapd->iface); | |
4012 | } | |
4013 | ||
d45354be | 4014 | #ifdef CONFIG_IEEE80211N |
5586f500 | 4015 | update_ht_state(hapd, sta); |
d45354be | 4016 | #endif /* CONFIG_IEEE80211N */ |
de9289c8 | 4017 | |
6fc6879b JM |
4018 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
4019 | HOSTAPD_LEVEL_DEBUG, | |
4020 | "association OK (aid %d)", sta->aid); | |
4021 | /* Station will be marked associated, after it acknowledges AssocResp | |
4022 | */ | |
b8281964 | 4023 | sta->flags |= WLAN_STA_ASSOC_REQ_OK; |
6fc6879b | 4024 | |
6f5c8dbd JM |
4025 | #ifdef CONFIG_IEEE80211W |
4026 | if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { | |
4027 | wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " | |
4028 | "SA Query procedure", reassoc ? "re" : ""); | |
4029 | /* TODO: Send a protected Disassociate frame to the STA using | |
4030 | * the old key and Reason Code "Previous Authentication no | |
4031 | * longer valid". Make sure this is only sent protected since | |
4032 | * unprotected frame would be received by the STA that is now | |
4033 | * trying to associate. | |
4034 | */ | |
4035 | } | |
4036 | #endif /* CONFIG_IEEE80211W */ | |
4037 | ||
6fc6879b JM |
4038 | /* Make sure that the previously registered inactivity timer will not |
4039 | * remove the STA immediately. */ | |
4040 | sta->timeout_next = STA_NULLFUNC; | |
4041 | ||
04059ab8 DG |
4042 | #ifdef CONFIG_TAXONOMY |
4043 | taxonomy_sta_info_assoc_req(hapd, sta, pos, left); | |
4044 | #endif /* CONFIG_TAXONOMY */ | |
4045 | ||
1f0fdaf0 JM |
4046 | sta->pending_wds_enable = 0; |
4047 | ||
5208160b JM |
4048 | #ifdef CONFIG_FILS |
4049 | if (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
4050 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
91d91abf JM |
4051 | sta->auth_alg == WLAN_AUTH_FILS_PK) { |
4052 | if (fils_process_hlp(hapd, sta, pos, left) > 0) | |
4053 | delay_assoc = 1; | |
4054 | } | |
5208160b JM |
4055 | #endif /* CONFIG_FILS */ |
4056 | ||
6fc6879b | 4057 | fail: |
53d17144 DL |
4058 | os_free(identity); |
4059 | os_free(radius_cui); | |
4060 | hostapd_free_psk_list(psk); | |
4061 | ||
3f81ac07 AO |
4062 | /* |
4063 | * In case of a successful response, add the station to the driver. | |
4064 | * Otherwise, the kernel may ignore Data frames before we process the | |
4065 | * ACK frame (TX status). In case of a failure, this station will be | |
4066 | * removed. | |
4067 | * | |
4068 | * Note that this is not compliant with the IEEE 802.11 standard that | |
4069 | * states that a non-AP station should transition into the | |
4070 | * authenticated/associated state only after the station acknowledges | |
4071 | * the (Re)Association Response frame. However, still do this as: | |
4072 | * | |
4073 | * 1. In case the station does not acknowledge the (Re)Association | |
4074 | * Response frame, it will be removed. | |
4075 | * 2. Data frames will be dropped in the kernel until the station is | |
4076 | * set into authorized state, and there are no significant known | |
4077 | * issues with processing other non-Data Class 3 frames during this | |
4078 | * window. | |
4079 | */ | |
4cf5efec JM |
4080 | if (resp == WLAN_STATUS_SUCCESS && sta && |
4081 | add_associated_sta(hapd, sta, reassoc)) | |
3f81ac07 AO |
4082 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; |
4083 | ||
91d91abf | 4084 | #ifdef CONFIG_FILS |
17adac9e JM |
4085 | if (sta && delay_assoc && resp == WLAN_STATUS_SUCCESS && |
4086 | eloop_is_timeout_registered(fils_hlp_timeout, hapd, sta) && | |
4087 | sta->fils_pending_assoc_req) { | |
4088 | /* Do not reschedule fils_hlp_timeout in case the station | |
4089 | * retransmits (Re)Association Request frame while waiting for | |
4090 | * the previously started FILS HLP wait, so that the timeout can | |
4091 | * be determined from the first pending attempt. */ | |
4092 | wpa_printf(MSG_DEBUG, | |
4093 | "FILS: Continue waiting for HLP processing before sending (Re)Association Response frame to " | |
4094 | MACSTR, MAC2STR(sta->addr)); | |
4095 | os_free(tmp); | |
4096 | return; | |
4097 | } | |
91d91abf JM |
4098 | if (sta) { |
4099 | eloop_cancel_timeout(fils_hlp_timeout, hapd, sta); | |
4100 | os_free(sta->fils_pending_assoc_req); | |
4101 | sta->fils_pending_assoc_req = NULL; | |
4102 | sta->fils_pending_assoc_req_len = 0; | |
4103 | wpabuf_free(sta->fils_hlp_resp); | |
4104 | sta->fils_hlp_resp = NULL; | |
4105 | } | |
4106 | if (sta && delay_assoc && resp == WLAN_STATUS_SUCCESS) { | |
4107 | sta->fils_pending_assoc_req = tmp; | |
4108 | sta->fils_pending_assoc_req_len = left; | |
4109 | sta->fils_pending_assoc_is_reassoc = reassoc; | |
8b5ddda5 | 4110 | sta->fils_drv_assoc_finish = 0; |
91d91abf JM |
4111 | wpa_printf(MSG_DEBUG, |
4112 | "FILS: Waiting for HLP processing before sending (Re)Association Response frame to " | |
4113 | MACSTR, MAC2STR(sta->addr)); | |
4114 | eloop_cancel_timeout(fils_hlp_timeout, hapd, sta); | |
4115 | eloop_register_timeout(0, hapd->conf->fils_hlp_wait_time * 1024, | |
4116 | fils_hlp_timeout, hapd, sta); | |
4117 | return; | |
4118 | } | |
4119 | #endif /* CONFIG_FILS */ | |
4120 | ||
05e5e615 | 4121 | reply_res = send_assoc_resp(hapd, sta, mgmt->sa, resp, reassoc, pos, |
076f1ea1 | 4122 | left, rssi); |
78815f3d | 4123 | os_free(tmp); |
3f81ac07 AO |
4124 | |
4125 | /* | |
4126 | * Remove the station in case tranmission of a success response fails | |
4127 | * (the STA was added associated to the driver) or if the station was | |
4128 | * previously added unassociated. | |
4129 | */ | |
05e5e615 DL |
4130 | if (sta && ((reply_res != WLAN_STATUS_SUCCESS && |
4131 | resp == WLAN_STATUS_SUCCESS) || sta->added_unassoc)) { | |
bb598c3b AB |
4132 | hostapd_drv_sta_remove(hapd, sta->addr); |
4133 | sta->added_unassoc = 0; | |
4134 | } | |
6fc6879b JM |
4135 | } |
4136 | ||
4137 | ||
6fc6879b | 4138 | static void handle_disassoc(struct hostapd_data *hapd, |
f8b1f695 | 4139 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
4140 | { |
4141 | struct sta_info *sta; | |
4142 | ||
4143 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { | |
61323e70 JM |
4144 | wpa_printf(MSG_INFO, "handle_disassoc - too short payload (len=%lu)", |
4145 | (unsigned long) len); | |
6fc6879b JM |
4146 | return; |
4147 | } | |
4148 | ||
4149 | wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", | |
4150 | MAC2STR(mgmt->sa), | |
4151 | le_to_host16(mgmt->u.disassoc.reason_code)); | |
4152 | ||
6fc6879b JM |
4153 | sta = ap_get_sta(hapd, mgmt->sa); |
4154 | if (sta == NULL) { | |
61323e70 JM |
4155 | wpa_printf(MSG_INFO, "Station " MACSTR " trying to disassociate, but it is not associated", |
4156 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
4157 | return; |
4158 | } | |
4159 | ||
ae055af4 | 4160 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 4161 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 | 4162 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK); |
6fc6879b JM |
4163 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); |
4164 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4165 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
4166 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
4167 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
4168 | /* Stop Accounting and IEEE 802.1X sessions, but leave the STA | |
4169 | * authenticated. */ | |
4170 | accounting_sta_stop(hapd, sta); | |
d7c3347f | 4171 | ieee802_1x_free_station(hapd, sta); |
7d597d46 | 4172 | if (sta->ipaddr) |
ed4ddb6d | 4173 | hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr); |
bd00c431 | 4174 | ap_sta_ip6addr_del(hapd, sta); |
51e2a27a | 4175 | hostapd_drv_sta_remove(hapd, sta->addr); |
bb598c3b | 4176 | sta->added_unassoc = 0; |
6fc6879b JM |
4177 | |
4178 | if (sta->timeout_next == STA_NULLFUNC || | |
4179 | sta->timeout_next == STA_DISASSOC) { | |
4180 | sta->timeout_next = STA_DEAUTH; | |
4181 | eloop_cancel_timeout(ap_handle_timer, hapd, sta); | |
4182 | eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, | |
4183 | hapd, sta); | |
4184 | } | |
4185 | ||
4186 | mlme_disassociate_indication( | |
4187 | hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); | |
05e5e615 DL |
4188 | |
4189 | /* DMG/IEEE 802.11ad does not use deauthication. Deallocate sta upon | |
4190 | * disassociation. */ | |
4191 | if (hapd->iface->current_mode && | |
4192 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) { | |
4193 | sta->flags &= ~WLAN_STA_AUTH; | |
4194 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); | |
4195 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4196 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
4197 | ap_free_sta(hapd, sta); | |
4198 | } | |
6fc6879b JM |
4199 | } |
4200 | ||
4201 | ||
4202 | static void handle_deauth(struct hostapd_data *hapd, | |
f8b1f695 | 4203 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
4204 | { |
4205 | struct sta_info *sta; | |
4206 | ||
4207 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { | |
3ec1e902 JM |
4208 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short " |
4209 | "payload (len=%lu)", (unsigned long) len); | |
6fc6879b JM |
4210 | return; |
4211 | } | |
4212 | ||
3ec1e902 | 4213 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR |
24d75245 BG |
4214 | " reason_code=%d", |
4215 | MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code)); | |
6fc6879b | 4216 | |
6fc6879b JM |
4217 | sta = ap_get_sta(hapd, mgmt->sa); |
4218 | if (sta == NULL) { | |
3ec1e902 JM |
4219 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying " |
4220 | "to deauthenticate, but it is not authenticated", | |
24d75245 | 4221 | MAC2STR(mgmt->sa)); |
6fc6879b JM |
4222 | return; |
4223 | } | |
4224 | ||
ae055af4 | 4225 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 4226 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 JM |
4227 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | |
4228 | WLAN_STA_ASSOC_REQ_OK); | |
6fc6879b JM |
4229 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); |
4230 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4231 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
4232 | mlme_deauthenticate_indication( | |
4233 | hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); | |
4234 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
4235 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
4236 | ap_free_sta(hapd, sta); | |
4237 | } | |
4238 | ||
4239 | ||
4240 | static void handle_beacon(struct hostapd_data *hapd, | |
b57e086c | 4241 | const struct ieee80211_mgmt *mgmt, size_t len, |
6fc6879b JM |
4242 | struct hostapd_frame_info *fi) |
4243 | { | |
4244 | struct ieee802_11_elems elems; | |
4245 | ||
4246 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { | |
61323e70 JM |
4247 | wpa_printf(MSG_INFO, "handle_beacon - too short payload (len=%lu)", |
4248 | (unsigned long) len); | |
6fc6879b JM |
4249 | return; |
4250 | } | |
4251 | ||
3d536eb4 | 4252 | (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, |
6fc6879b JM |
4253 | len - (IEEE80211_HDRLEN + |
4254 | sizeof(mgmt->u.beacon)), &elems, | |
4255 | 0); | |
4256 | ||
6fc6879b JM |
4257 | ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); |
4258 | } | |
4259 | ||
4260 | ||
5d22a1d5 | 4261 | #ifdef CONFIG_IEEE80211W |
c4e281fd JM |
4262 | static int robust_action_frame(u8 category) |
4263 | { | |
4264 | return category != WLAN_ACTION_PUBLIC && | |
4265 | category != WLAN_ACTION_HT; | |
4266 | } | |
9f64b827 | 4267 | #endif /* CONFIG_IEEE80211W */ |
c4e281fd JM |
4268 | |
4269 | ||
912b34f0 | 4270 | static int handle_action(struct hostapd_data *hapd, |
c5cc7a59 JM |
4271 | const struct ieee80211_mgmt *mgmt, size_t len, |
4272 | unsigned int freq) | |
6fc6879b | 4273 | { |
c4e281fd | 4274 | struct sta_info *sta; |
e0785ebb | 4275 | u8 *action __maybe_unused; |
c4e281fd | 4276 | |
e0785ebb | 4277 | if (len < IEEE80211_HDRLEN + 2 + 1) { |
6fc6879b JM |
4278 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
4279 | HOSTAPD_LEVEL_DEBUG, | |
4280 | "handle_action - too short payload (len=%lu)", | |
4281 | (unsigned long) len); | |
912b34f0 | 4282 | return 0; |
6fc6879b JM |
4283 | } |
4284 | ||
e0785ebb JM |
4285 | action = (u8 *) &mgmt->u.action.u; |
4286 | wpa_printf(MSG_DEBUG, "RX_ACTION category %u action %u sa " MACSTR | |
4287 | " da " MACSTR " len %d freq %u", | |
4288 | mgmt->u.action.category, *action, | |
4289 | MAC2STR(mgmt->sa), MAC2STR(mgmt->da), (int) len, freq); | |
4290 | ||
4291 | sta = ap_get_sta(hapd, mgmt->sa); | |
4292 | ||
c79938a5 JM |
4293 | if (mgmt->u.action.category != WLAN_ACTION_PUBLIC && |
4294 | (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { | |
4295 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action " | |
4296 | "frame (category=%u) from unassociated STA " MACSTR, | |
ae26d302 | 4297 | mgmt->u.action.category, MAC2STR(mgmt->sa)); |
912b34f0 | 4298 | return 0; |
c79938a5 JM |
4299 | } |
4300 | ||
c4e281fd JM |
4301 | #ifdef CONFIG_IEEE80211W |
4302 | if (sta && (sta->flags & WLAN_STA_MFP) && | |
7b2c42f8 JM |
4303 | !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP)) && |
4304 | robust_action_frame(mgmt->u.action.category)) { | |
c4e281fd JM |
4305 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
4306 | HOSTAPD_LEVEL_DEBUG, | |
4307 | "Dropped unprotected Robust Action frame from " | |
4308 | "an MFP STA"); | |
912b34f0 | 4309 | return 0; |
c4e281fd JM |
4310 | } |
4311 | #endif /* CONFIG_IEEE80211W */ | |
4312 | ||
38cb0a2d IP |
4313 | if (sta) { |
4314 | u16 fc = le_to_host16(mgmt->frame_control); | |
4315 | u16 seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
4316 | ||
4317 | if ((fc & WLAN_FC_RETRY) && | |
4318 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
4319 | sta->last_seq_ctrl == seq_ctrl && | |
4320 | sta->last_subtype == WLAN_FC_STYPE_ACTION) { | |
4321 | hostapd_logger(hapd, sta->addr, | |
4322 | HOSTAPD_MODULE_IEEE80211, | |
4323 | HOSTAPD_LEVEL_DEBUG, | |
4324 | "Drop repeated action frame seq_ctrl=0x%x", | |
4325 | seq_ctrl); | |
4326 | return 1; | |
4327 | } | |
4328 | ||
4329 | sta->last_seq_ctrl = seq_ctrl; | |
4330 | sta->last_subtype = WLAN_FC_STYPE_ACTION; | |
4331 | } | |
4332 | ||
6fc6879b | 4333 | switch (mgmt->u.action.category) { |
4ec1fd8e | 4334 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b | 4335 | case WLAN_ACTION_FT: |
d6c6b1fb JM |
4336 | if (!sta || |
4337 | wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, | |
6fc6879b JM |
4338 | len - IEEE80211_HDRLEN)) |
4339 | break; | |
912b34f0 | 4340 | return 1; |
4ec1fd8e | 4341 | #endif /* CONFIG_IEEE80211R_AP */ |
c2a71408 | 4342 | case WLAN_ACTION_WMM: |
3ae0800c | 4343 | hostapd_wmm_action(hapd, mgmt, len); |
912b34f0 | 4344 | return 1; |
5d22a1d5 | 4345 | #ifdef CONFIG_IEEE80211W |
93b76319 | 4346 | case WLAN_ACTION_SA_QUERY: |
700b3f39 JM |
4347 | ieee802_11_sa_query_action(hapd, mgmt, len); |
4348 | return 1; | |
5d22a1d5 | 4349 | #endif /* CONFIG_IEEE80211W */ |
b5bf84ba | 4350 | #ifdef CONFIG_WNM_AP |
c79938a5 | 4351 | case WLAN_ACTION_WNM: |
dbfb8e82 JM |
4352 | ieee802_11_rx_wnm_action_ap(hapd, mgmt, len); |
4353 | return 1; | |
b5bf84ba | 4354 | #endif /* CONFIG_WNM_AP */ |
037378ff AN |
4355 | #ifdef CONFIG_FST |
4356 | case WLAN_ACTION_FST: | |
4357 | if (hapd->iface->fst) | |
4358 | fst_rx_action(hapd->iface->fst, mgmt, len); | |
94edea89 JM |
4359 | else |
4360 | wpa_printf(MSG_DEBUG, | |
4361 | "FST: Ignore FST Action frame - no FST attached"); | |
037378ff AN |
4362 | return 1; |
4363 | #endif /* CONFIG_FST */ | |
c706d5aa | 4364 | case WLAN_ACTION_PUBLIC: |
5ce00d09 | 4365 | case WLAN_ACTION_PROTECTED_DUAL: |
587d60d2 | 4366 | #ifdef CONFIG_IEEE80211N |
fd66aa63 JM |
4367 | if (len >= IEEE80211_HDRLEN + 2 && |
4368 | mgmt->u.action.u.public_action.action == | |
587d60d2 | 4369 | WLAN_PA_20_40_BSS_COEX) { |
587d60d2 | 4370 | hostapd_2040_coex_action(hapd, mgmt, len); |
115d5e22 | 4371 | return 1; |
587d60d2 PX |
4372 | } |
4373 | #endif /* CONFIG_IEEE80211N */ | |
9c2b8204 JM |
4374 | #ifdef CONFIG_DPP |
4375 | if (len >= IEEE80211_HDRLEN + 6 && | |
4376 | mgmt->u.action.u.vs_public_action.action == | |
4377 | WLAN_PA_VENDOR_SPECIFIC && | |
4378 | WPA_GET_BE24(mgmt->u.action.u.vs_public_action.oui) == | |
4379 | OUI_WFA && | |
4380 | mgmt->u.action.u.vs_public_action.variable[0] == | |
4381 | DPP_OUI_TYPE) { | |
4382 | const u8 *pos, *end; | |
4383 | ||
dc4d271c | 4384 | pos = mgmt->u.action.u.vs_public_action.oui; |
9c2b8204 JM |
4385 | end = ((const u8 *) mgmt) + len; |
4386 | hostapd_dpp_rx_action(hapd, mgmt->sa, pos, end - pos, | |
c5cc7a59 | 4387 | freq); |
9c2b8204 JM |
4388 | return 1; |
4389 | } | |
4390 | if (len >= IEEE80211_HDRLEN + 2 && | |
4391 | (mgmt->u.action.u.public_action.action == | |
4392 | WLAN_PA_GAS_INITIAL_RESP || | |
4393 | mgmt->u.action.u.public_action.action == | |
4394 | WLAN_PA_GAS_COMEBACK_RESP)) { | |
4395 | const u8 *pos, *end; | |
4396 | ||
4397 | pos = &mgmt->u.action.u.public_action.action; | |
4398 | end = ((const u8 *) mgmt) + len; | |
4399 | gas_query_ap_rx(hapd->gas, mgmt->sa, | |
4400 | mgmt->u.action.category, | |
4401 | pos, end - pos, hapd->iface->freq); | |
4402 | return 1; | |
4403 | } | |
4404 | #endif /* CONFIG_DPP */ | |
c706d5aa JM |
4405 | if (hapd->public_action_cb) { |
4406 | hapd->public_action_cb(hapd->public_action_cb_ctx, | |
4407 | (u8 *) mgmt, len, | |
4408 | hapd->iface->freq); | |
c706d5aa | 4409 | } |
2d9ffe1e | 4410 | if (hapd->public_action_cb2) { |
8dabf4bb | 4411 | hapd->public_action_cb2(hapd->public_action_cb2_ctx, |
2d9ffe1e JM |
4412 | (u8 *) mgmt, len, |
4413 | hapd->iface->freq); | |
4414 | } | |
4415 | if (hapd->public_action_cb || hapd->public_action_cb2) | |
912b34f0 | 4416 | return 1; |
c706d5aa | 4417 | break; |
e44f8bf2 JM |
4418 | case WLAN_ACTION_VENDOR_SPECIFIC: |
4419 | if (hapd->vendor_action_cb) { | |
4420 | if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx, | |
4421 | (u8 *) mgmt, len, | |
4422 | hapd->iface->freq) == 0) | |
912b34f0 | 4423 | return 1; |
e44f8bf2 JM |
4424 | } |
4425 | break; | |
2572df34 DS |
4426 | case WLAN_ACTION_RADIO_MEASUREMENT: |
4427 | hostapd_handle_radio_measurement(hapd, (const u8 *) mgmt, len); | |
4428 | return 1; | |
6fc6879b JM |
4429 | } |
4430 | ||
4431 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
4432 | HOSTAPD_LEVEL_DEBUG, | |
4433 | "handle_action - unknown action category %d or invalid " | |
4434 | "frame", | |
4435 | mgmt->u.action.category); | |
81372e34 JB |
4436 | if (!is_multicast_ether_addr(mgmt->da) && |
4437 | !(mgmt->u.action.category & 0x80) && | |
4438 | !is_multicast_ether_addr(mgmt->sa)) { | |
b57e086c JM |
4439 | struct ieee80211_mgmt *resp; |
4440 | ||
6fc6879b JM |
4441 | /* |
4442 | * IEEE 802.11-REVma/D9.0 - 7.3.1.11 | |
4443 | * Return the Action frame to the source without change | |
4444 | * except that MSB of the Category set to 1. | |
4445 | */ | |
4446 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " | |
4447 | "frame back to sender"); | |
a1f11e34 | 4448 | resp = os_memdup(mgmt, len); |
b57e086c | 4449 | if (resp == NULL) |
912b34f0 | 4450 | return 0; |
b57e086c JM |
4451 | os_memcpy(resp->da, resp->sa, ETH_ALEN); |
4452 | os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); | |
4453 | os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); | |
4454 | resp->u.action.category |= 0x80; | |
4455 | ||
41fe8b42 JM |
4456 | if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) { |
4457 | wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send " | |
4458 | "Action frame"); | |
4459 | } | |
b57e086c | 4460 | os_free(resp); |
6fc6879b | 4461 | } |
912b34f0 JM |
4462 | |
4463 | return 1; | |
6fc6879b JM |
4464 | } |
4465 | ||
4466 | ||
4467 | /** | |
4468 | * ieee802_11_mgmt - process incoming IEEE 802.11 management frames | |
4469 | * @hapd: hostapd BSS data structure (the BSS to which the management frame was | |
4470 | * sent to) | |
4471 | * @buf: management frame data (starting from IEEE 802.11 header) | |
4472 | * @len: length of frame data in octets | |
a17df5fb | 4473 | * @fi: meta data about received frame (signal level, etc.) |
6fc6879b JM |
4474 | * |
4475 | * Process all incoming IEEE 802.11 management frames. This will be called for | |
4476 | * each frame received from the kernel driver through wlan#ap interface. In | |
4477 | * addition, it can be called to re-inserted pending frames (e.g., when using | |
4478 | * external RADIUS server as an MAC ACL). | |
4479 | */ | |
912b34f0 JM |
4480 | int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, |
4481 | struct hostapd_frame_info *fi) | |
6fc6879b | 4482 | { |
f8b1f695 | 4483 | struct ieee80211_mgmt *mgmt; |
f8b1f695 | 4484 | u16 fc, stype; |
912b34f0 | 4485 | int ret = 0; |
c5cc7a59 | 4486 | unsigned int freq; |
659ac96d | 4487 | int ssi_signal = fi ? fi->ssi_signal : 0; |
f8b1f695 | 4488 | |
cbcf92b4 | 4489 | if (len < 24) |
912b34f0 | 4490 | return 0; |
cbcf92b4 | 4491 | |
c5cc7a59 JM |
4492 | if (fi && fi->freq) |
4493 | freq = fi->freq; | |
4494 | else | |
4495 | freq = hapd->iface->freq; | |
4496 | ||
f8b1f695 JM |
4497 | mgmt = (struct ieee80211_mgmt *) buf; |
4498 | fc = le_to_host16(mgmt->frame_control); | |
4499 | stype = WLAN_FC_GET_STYPE(fc); | |
6fc6879b JM |
4500 | |
4501 | if (stype == WLAN_FC_STYPE_BEACON) { | |
4502 | handle_beacon(hapd, mgmt, len, fi); | |
912b34f0 | 4503 | return 1; |
6fc6879b JM |
4504 | } |
4505 | ||
842c5af5 | 4506 | if (!is_broadcast_ether_addr(mgmt->bssid) && |
3eeee931 AN |
4507 | #ifdef CONFIG_P2P |
4508 | /* Invitation responses can be sent with the peer MAC as BSSID */ | |
4509 | !((hapd->conf->p2p & P2P_GROUP_OWNER) && | |
4510 | stype == WLAN_FC_STYPE_ACTION) && | |
4511 | #endif /* CONFIG_P2P */ | |
f3e9899e BC |
4512 | #ifdef CONFIG_MESH |
4513 | !(hapd->conf->mesh & MESH_ENABLED) && | |
4514 | #endif /* CONFIG_MESH */ | |
fe2c5241 | 4515 | os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { |
61323e70 JM |
4516 | wpa_printf(MSG_INFO, "MGMT: BSSID=" MACSTR " not our address", |
4517 | MAC2STR(mgmt->bssid)); | |
912b34f0 | 4518 | return 0; |
6fc6879b JM |
4519 | } |
4520 | ||
4521 | ||
4522 | if (stype == WLAN_FC_STYPE_PROBE_REQ) { | |
659ac96d | 4523 | handle_probe_req(hapd, mgmt, len, ssi_signal); |
912b34f0 | 4524 | return 1; |
6fc6879b JM |
4525 | } |
4526 | ||
efeada91 JM |
4527 | if ((!is_broadcast_ether_addr(mgmt->da) || |
4528 | stype != WLAN_FC_STYPE_ACTION) && | |
4529 | os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { | |
6fc6879b JM |
4530 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
4531 | HOSTAPD_LEVEL_DEBUG, | |
4532 | "MGMT: DA=" MACSTR " not our address", | |
4533 | MAC2STR(mgmt->da)); | |
912b34f0 | 4534 | return 0; |
6fc6879b JM |
4535 | } |
4536 | ||
b308a304 | 4537 | if (hapd->iconf->track_sta_max_num) |
659ac96d | 4538 | sta_track_add(hapd->iface, mgmt->sa, ssi_signal); |
b308a304 | 4539 | |
6fc6879b JM |
4540 | switch (stype) { |
4541 | case WLAN_FC_STYPE_AUTH: | |
4542 | wpa_printf(MSG_DEBUG, "mgmt::auth"); | |
ff9f40ae | 4543 | handle_auth(hapd, mgmt, len, ssi_signal, 0); |
912b34f0 | 4544 | ret = 1; |
6fc6879b JM |
4545 | break; |
4546 | case WLAN_FC_STYPE_ASSOC_REQ: | |
4547 | wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); | |
076f1ea1 | 4548 | handle_assoc(hapd, mgmt, len, 0, ssi_signal); |
912b34f0 | 4549 | ret = 1; |
6fc6879b | 4550 | break; |
6fc6879b JM |
4551 | case WLAN_FC_STYPE_REASSOC_REQ: |
4552 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); | |
076f1ea1 | 4553 | handle_assoc(hapd, mgmt, len, 1, ssi_signal); |
912b34f0 | 4554 | ret = 1; |
6fc6879b JM |
4555 | break; |
4556 | case WLAN_FC_STYPE_DISASSOC: | |
4557 | wpa_printf(MSG_DEBUG, "mgmt::disassoc"); | |
4558 | handle_disassoc(hapd, mgmt, len); | |
912b34f0 | 4559 | ret = 1; |
6fc6879b JM |
4560 | break; |
4561 | case WLAN_FC_STYPE_DEAUTH: | |
3ec1e902 | 4562 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth"); |
6fc6879b | 4563 | handle_deauth(hapd, mgmt, len); |
912b34f0 | 4564 | ret = 1; |
6fc6879b JM |
4565 | break; |
4566 | case WLAN_FC_STYPE_ACTION: | |
4567 | wpa_printf(MSG_DEBUG, "mgmt::action"); | |
c5cc7a59 | 4568 | ret = handle_action(hapd, mgmt, len, freq); |
6fc6879b JM |
4569 | break; |
4570 | default: | |
4571 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
4572 | HOSTAPD_LEVEL_DEBUG, | |
4573 | "unknown mgmt frame subtype %d", stype); | |
4574 | break; | |
4575 | } | |
912b34f0 JM |
4576 | |
4577 | return ret; | |
6fc6879b JM |
4578 | } |
4579 | ||
4580 | ||
4581 | static void handle_auth_cb(struct hostapd_data *hapd, | |
f8b1f695 | 4582 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
4583 | size_t len, int ok) |
4584 | { | |
4585 | u16 auth_alg, auth_transaction, status_code; | |
4586 | struct sta_info *sta; | |
4587 | ||
bb598c3b AB |
4588 | sta = ap_get_sta(hapd, mgmt->da); |
4589 | if (!sta) { | |
dc1b1c8d JM |
4590 | wpa_printf(MSG_DEBUG, "handle_auth_cb: STA " MACSTR |
4591 | " not found", | |
bb598c3b AB |
4592 | MAC2STR(mgmt->da)); |
4593 | return; | |
4594 | } | |
4595 | ||
4596 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
4597 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
4598 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
4599 | ||
6fc6879b JM |
4600 | if (!ok) { |
4601 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
4602 | HOSTAPD_LEVEL_NOTICE, | |
4603 | "did not acknowledge authentication response"); | |
bb598c3b | 4604 | goto fail; |
6fc6879b JM |
4605 | } |
4606 | ||
4607 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
4608 | wpa_printf(MSG_INFO, "handle_auth_cb - too short payload (len=%lu)", |
4609 | (unsigned long) len); | |
bb598c3b | 4610 | goto fail; |
6fc6879b JM |
4611 | } |
4612 | ||
4613 | if (status_code == WLAN_STATUS_SUCCESS && | |
4614 | ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || | |
4615 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { | |
4616 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4617 | HOSTAPD_LEVEL_INFO, "authenticated"); | |
4618 | sta->flags |= WLAN_STA_AUTH; | |
bb598c3b AB |
4619 | if (sta->added_unassoc) |
4620 | hostapd_set_sta_flags(hapd, sta); | |
4621 | return; | |
4622 | } | |
4623 | ||
4624 | fail: | |
4625 | if (status_code != WLAN_STATUS_SUCCESS && sta->added_unassoc) { | |
4626 | hostapd_drv_sta_remove(hapd, sta->addr); | |
4627 | sta->added_unassoc = 0; | |
6fc6879b JM |
4628 | } |
4629 | } | |
4630 | ||
4631 | ||
69dd2967 SM |
4632 | static void hostapd_set_wds_encryption(struct hostapd_data *hapd, |
4633 | struct sta_info *sta, | |
4634 | char *ifname_wds) | |
4635 | { | |
4636 | int i; | |
f41ded6f | 4637 | struct hostapd_ssid *ssid = &hapd->conf->ssid; |
69dd2967 SM |
4638 | |
4639 | if (hapd->conf->ieee802_1x || hapd->conf->wpa) | |
4640 | return; | |
4641 | ||
4642 | for (i = 0; i < 4; i++) { | |
4643 | if (ssid->wep.key[i] && | |
4644 | hostapd_drv_set_key(ifname_wds, hapd, WPA_ALG_WEP, NULL, i, | |
4645 | i == ssid->wep.idx, NULL, 0, | |
4646 | ssid->wep.key[i], ssid->wep.len[i])) { | |
4647 | wpa_printf(MSG_WARNING, | |
4648 | "Could not set WEP keys for WDS interface; %s", | |
4649 | ifname_wds); | |
4650 | break; | |
4651 | } | |
4652 | } | |
4653 | } | |
4654 | ||
4655 | ||
6fc6879b | 4656 | static void handle_assoc_cb(struct hostapd_data *hapd, |
f8b1f695 | 4657 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
4658 | size_t len, int reassoc, int ok) |
4659 | { | |
4660 | u16 status; | |
4661 | struct sta_info *sta; | |
4662 | int new_assoc = 1; | |
4663 | ||
6fc6879b JM |
4664 | sta = ap_get_sta(hapd, mgmt->da); |
4665 | if (!sta) { | |
61323e70 JM |
4666 | wpa_printf(MSG_INFO, "handle_assoc_cb: STA " MACSTR " not found", |
4667 | MAC2STR(mgmt->da)); | |
6fc6879b JM |
4668 | return; |
4669 | } | |
4670 | ||
bb598c3b AB |
4671 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : |
4672 | sizeof(mgmt->u.assoc_resp))) { | |
4673 | wpa_printf(MSG_INFO, | |
4674 | "handle_assoc_cb(reassoc=%d) - too short payload (len=%lu)", | |
4675 | reassoc, (unsigned long) len); | |
3f81ac07 AO |
4676 | hostapd_drv_sta_remove(hapd, sta->addr); |
4677 | return; | |
bb598c3b AB |
4678 | } |
4679 | ||
3f81ac07 AO |
4680 | if (reassoc) |
4681 | status = le_to_host16(mgmt->u.reassoc_resp.status_code); | |
4682 | else | |
4683 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
4684 | ||
22b42372 FF |
4685 | if (!ok) { |
4686 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
4687 | HOSTAPD_LEVEL_DEBUG, | |
4688 | "did not acknowledge association response"); | |
4689 | sta->flags &= ~WLAN_STA_ASSOC_REQ_OK; | |
3f81ac07 AO |
4690 | /* The STA is added only in case of SUCCESS */ |
4691 | if (status == WLAN_STATUS_SUCCESS) | |
4692 | hostapd_drv_sta_remove(hapd, sta->addr); | |
22b42372 | 4693 | |
3f81ac07 AO |
4694 | return; |
4695 | } | |
22b42372 | 4696 | |
6fc6879b | 4697 | if (status != WLAN_STATUS_SUCCESS) |
5bdac4ab | 4698 | return; |
6fc6879b JM |
4699 | |
4700 | /* Stop previous accounting session, if one is started, and allocate | |
4701 | * new session id for the new session. */ | |
4702 | accounting_sta_stop(hapd, sta); | |
6fc6879b JM |
4703 | |
4704 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4705 | HOSTAPD_LEVEL_INFO, | |
2fc98d02 JM |
4706 | "associated (aid %d)", |
4707 | sta->aid); | |
6fc6879b JM |
4708 | |
4709 | if (sta->flags & WLAN_STA_ASSOC) | |
4710 | new_assoc = 0; | |
4711 | sta->flags |= WLAN_STA_ASSOC; | |
3578e665 | 4712 | sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE; |
07e0117d JM |
4713 | if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa && |
4714 | !hapd->conf->osen) || | |
4715 | sta->auth_alg == WLAN_AUTH_FILS_SK || | |
4716 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
4717 | sta->auth_alg == WLAN_AUTH_FILS_PK || | |
ef580012 JM |
4718 | sta->auth_alg == WLAN_AUTH_FT) { |
4719 | /* | |
07e0117d JM |
4720 | * Open, static WEP, FT protocol, or FILS; no separate |
4721 | * authorization step. | |
ef580012 | 4722 | */ |
6905dcb1 | 4723 | ap_sta_set_authorized(hapd, sta, 1); |
515cf93f | 4724 | } |
6fc6879b JM |
4725 | |
4726 | if (reassoc) | |
4727 | mlme_reassociate_indication(hapd, sta); | |
4728 | else | |
4729 | mlme_associate_indication(hapd, sta); | |
4730 | ||
5d22a1d5 | 4731 | #ifdef CONFIG_IEEE80211W |
93b76319 | 4732 | sta->sa_query_timed_out = 0; |
5d22a1d5 JM |
4733 | #endif /* CONFIG_IEEE80211W */ |
4734 | ||
6fc6879b JM |
4735 | if (sta->eapol_sm == NULL) { |
4736 | /* | |
4737 | * This STA does not use RADIUS server for EAP authentication, | |
4738 | * so bind it to the selected VLAN interface now, since the | |
4739 | * interface selection is not going to change anymore. | |
4740 | */ | |
c8e6beab | 4741 | if (ap_sta_bind_vlan(hapd, sta) < 0) |
5bdac4ab | 4742 | return; |
6fc6879b JM |
4743 | } else if (sta->vlan_id) { |
4744 | /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ | |
c8e6beab | 4745 | if (ap_sta_bind_vlan(hapd, sta) < 0) |
5bdac4ab | 4746 | return; |
6fc6879b | 4747 | } |
eddd8010 | 4748 | |
0e8a96a9 | 4749 | hostapd_set_sta_flags(hapd, sta); |
6fc6879b | 4750 | |
1f0fdaf0 JM |
4751 | if (!(sta->flags & WLAN_STA_WDS) && sta->pending_wds_enable) { |
4752 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for STA " | |
4753 | MACSTR " based on pending request", | |
4754 | MAC2STR(sta->addr)); | |
4755 | sta->pending_wds_enable = 0; | |
4756 | sta->flags |= WLAN_STA_WDS; | |
4757 | } | |
4758 | ||
9c06f0f6 | 4759 | if (sta->flags & (WLAN_STA_WDS | WLAN_STA_MULTI_AP)) { |
cb2b6666 JM |
4760 | int ret; |
4761 | char ifname_wds[IFNAMSIZ + 1]; | |
4762 | ||
4763 | wpa_printf(MSG_DEBUG, "Reenable 4-address WDS mode for STA " | |
4764 | MACSTR " (aid %u)", | |
4765 | MAC2STR(sta->addr), sta->aid); | |
4766 | ret = hostapd_set_wds_sta(hapd, ifname_wds, sta->addr, | |
4767 | sta->aid, 1); | |
4768 | if (!ret) | |
4769 | hostapd_set_wds_encryption(hapd, sta, ifname_wds); | |
4770 | } | |
4771 | ||
6fc6879b JM |
4772 | if (sta->auth_alg == WLAN_AUTH_FT) |
4773 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
4774 | else | |
4775 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
d24df7c3 | 4776 | hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); |
6fc6879b | 4777 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); |
f2accfe7 | 4778 | |
da24c5aa JM |
4779 | #ifdef CONFIG_FILS |
4780 | if ((sta->auth_alg == WLAN_AUTH_FILS_SK || | |
4781 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
4782 | sta->auth_alg == WLAN_AUTH_FILS_PK) && | |
4783 | fils_set_tk(sta->wpa_sm) < 0) { | |
4784 | wpa_printf(MSG_DEBUG, "FILS: TK configuration failed"); | |
4785 | ap_sta_disconnect(hapd, sta, sta->addr, | |
4786 | WLAN_REASON_UNSPECIFIED); | |
4787 | return; | |
4788 | } | |
4789 | #endif /* CONFIG_FILS */ | |
4790 | ||
f2accfe7 EP |
4791 | if (sta->pending_eapol_rx) { |
4792 | struct os_reltime now, age; | |
4793 | ||
4794 | os_get_reltime(&now); | |
4795 | os_reltime_sub(&now, &sta->pending_eapol_rx->rx_time, &age); | |
4796 | if (age.sec == 0 && age.usec < 200000) { | |
4797 | wpa_printf(MSG_DEBUG, | |
4798 | "Process pending EAPOL frame that was received from " MACSTR " just before association notification", | |
4799 | MAC2STR(sta->addr)); | |
4800 | ieee802_1x_receive( | |
4801 | hapd, mgmt->da, | |
4802 | wpabuf_head(sta->pending_eapol_rx->buf), | |
4803 | wpabuf_len(sta->pending_eapol_rx->buf)); | |
4804 | } | |
4805 | wpabuf_free(sta->pending_eapol_rx->buf); | |
4806 | os_free(sta->pending_eapol_rx); | |
4807 | sta->pending_eapol_rx = NULL; | |
4808 | } | |
6fc6879b JM |
4809 | } |
4810 | ||
4811 | ||
4dc03726 JM |
4812 | static void handle_deauth_cb(struct hostapd_data *hapd, |
4813 | const struct ieee80211_mgmt *mgmt, | |
4814 | size_t len, int ok) | |
4815 | { | |
4816 | struct sta_info *sta; | |
81372e34 | 4817 | if (is_multicast_ether_addr(mgmt->da)) |
4dc03726 JM |
4818 | return; |
4819 | sta = ap_get_sta(hapd, mgmt->da); | |
4820 | if (!sta) { | |
4821 | wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR | |
4822 | " not found", MAC2STR(mgmt->da)); | |
4823 | return; | |
4824 | } | |
4825 | if (ok) | |
4826 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth", | |
4827 | MAC2STR(sta->addr)); | |
4828 | else | |
4829 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
4830 | "deauth", MAC2STR(sta->addr)); | |
4831 | ||
4832 | ap_sta_deauth_cb(hapd, sta); | |
4833 | } | |
4834 | ||
4835 | ||
4836 | static void handle_disassoc_cb(struct hostapd_data *hapd, | |
4837 | const struct ieee80211_mgmt *mgmt, | |
4838 | size_t len, int ok) | |
4839 | { | |
4840 | struct sta_info *sta; | |
81372e34 | 4841 | if (is_multicast_ether_addr(mgmt->da)) |
4dc03726 JM |
4842 | return; |
4843 | sta = ap_get_sta(hapd, mgmt->da); | |
4844 | if (!sta) { | |
4845 | wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR | |
4846 | " not found", MAC2STR(mgmt->da)); | |
4847 | return; | |
4848 | } | |
4849 | if (ok) | |
4850 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc", | |
4851 | MAC2STR(sta->addr)); | |
4852 | else | |
4853 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
4854 | "disassoc", MAC2STR(sta->addr)); | |
4855 | ||
4856 | ap_sta_disassoc_cb(hapd, sta); | |
4857 | } | |
4858 | ||
4859 | ||
f3383366 JM |
4860 | static void handle_action_cb(struct hostapd_data *hapd, |
4861 | const struct ieee80211_mgmt *mgmt, | |
4862 | size_t len, int ok) | |
4863 | { | |
4864 | struct sta_info *sta; | |
167f78a5 | 4865 | const struct rrm_measurement_report_element *report; |
f3383366 JM |
4866 | |
4867 | if (is_multicast_ether_addr(mgmt->da)) | |
4868 | return; | |
9c2b8204 JM |
4869 | #ifdef CONFIG_DPP |
4870 | if (len >= IEEE80211_HDRLEN + 6 && | |
4871 | mgmt->u.action.category == WLAN_ACTION_PUBLIC && | |
4872 | mgmt->u.action.u.vs_public_action.action == | |
4873 | WLAN_PA_VENDOR_SPECIFIC && | |
4874 | WPA_GET_BE24(mgmt->u.action.u.vs_public_action.oui) == | |
4875 | OUI_WFA && | |
4876 | mgmt->u.action.u.vs_public_action.variable[0] == | |
4877 | DPP_OUI_TYPE) { | |
4878 | const u8 *pos, *end; | |
4879 | ||
4880 | pos = &mgmt->u.action.u.vs_public_action.variable[1]; | |
4881 | end = ((const u8 *) mgmt) + len; | |
4882 | hostapd_dpp_tx_status(hapd, mgmt->da, pos, end - pos, ok); | |
4883 | return; | |
4884 | } | |
4885 | if (len >= IEEE80211_HDRLEN + 2 && | |
4886 | mgmt->u.action.category == WLAN_ACTION_PUBLIC && | |
4887 | (mgmt->u.action.u.public_action.action == | |
4888 | WLAN_PA_GAS_INITIAL_REQ || | |
4889 | mgmt->u.action.u.public_action.action == | |
4890 | WLAN_PA_GAS_COMEBACK_REQ)) { | |
4891 | const u8 *pos, *end; | |
4892 | ||
4893 | pos = mgmt->u.action.u.public_action.variable; | |
4894 | end = ((const u8 *) mgmt) + len; | |
4895 | gas_query_ap_tx_status(hapd->gas, mgmt->da, pos, end - pos, ok); | |
4896 | return; | |
4897 | } | |
4898 | #endif /* CONFIG_DPP */ | |
f3383366 JM |
4899 | sta = ap_get_sta(hapd, mgmt->da); |
4900 | if (!sta) { | |
4901 | wpa_printf(MSG_DEBUG, "handle_action_cb: STA " MACSTR | |
4902 | " not found", MAC2STR(mgmt->da)); | |
4903 | return; | |
4904 | } | |
4905 | ||
167f78a5 | 4906 | if (len < 24 + 5 + sizeof(*report)) |
f3383366 | 4907 | return; |
167f78a5 JM |
4908 | report = (const struct rrm_measurement_report_element *) |
4909 | &mgmt->u.action.u.rrm.variable[2]; | |
f3383366 | 4910 | if (mgmt->u.action.category == WLAN_ACTION_RADIO_MEASUREMENT && |
167f78a5 JM |
4911 | mgmt->u.action.u.rrm.action == WLAN_RRM_RADIO_MEASUREMENT_REQUEST && |
4912 | report->eid == WLAN_EID_MEASURE_REQUEST && | |
4913 | report->len >= 3 && | |
4914 | report->type == MEASURE_TYPE_BEACON) | |
f3383366 JM |
4915 | hostapd_rrm_beacon_req_tx_status(hapd, mgmt, len, ok); |
4916 | } | |
4917 | ||
4918 | ||
1c6e69cc JM |
4919 | /** |
4920 | * ieee802_11_mgmt_cb - Process management frame TX status callback | |
4921 | * @hapd: hostapd BSS data structure (the BSS from which the management frame | |
4922 | * was sent from) | |
4923 | * @buf: management frame data (starting from IEEE 802.11 header) | |
4924 | * @len: length of frame data in octets | |
4925 | * @stype: management frame subtype from frame control field | |
4926 | * @ok: Whether the frame was ACK'ed | |
4927 | */ | |
f8b1f695 | 4928 | void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
4929 | u16 stype, int ok) |
4930 | { | |
f8b1f695 JM |
4931 | const struct ieee80211_mgmt *mgmt; |
4932 | mgmt = (const struct ieee80211_mgmt *) buf; | |
6fc6879b | 4933 | |
93827f45 JM |
4934 | #ifdef CONFIG_TESTING_OPTIONS |
4935 | if (hapd->ext_mgmt_frame_handling) { | |
df949062 JM |
4936 | size_t hex_len = 2 * len + 1; |
4937 | char *hex = os_malloc(hex_len); | |
4938 | ||
4939 | if (hex) { | |
4940 | wpa_snprintf_hex(hex, hex_len, buf, len); | |
4941 | wpa_msg(hapd->msg_ctx, MSG_INFO, | |
4942 | "MGMT-TX-STATUS stype=%u ok=%d buf=%s", | |
4943 | stype, ok, hex); | |
4944 | os_free(hex); | |
4945 | } | |
93827f45 JM |
4946 | return; |
4947 | } | |
4948 | #endif /* CONFIG_TESTING_OPTIONS */ | |
4949 | ||
6fc6879b JM |
4950 | switch (stype) { |
4951 | case WLAN_FC_STYPE_AUTH: | |
4952 | wpa_printf(MSG_DEBUG, "mgmt::auth cb"); | |
4953 | handle_auth_cb(hapd, mgmt, len, ok); | |
4954 | break; | |
4955 | case WLAN_FC_STYPE_ASSOC_RESP: | |
4956 | wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); | |
4957 | handle_assoc_cb(hapd, mgmt, len, 0, ok); | |
4958 | break; | |
4959 | case WLAN_FC_STYPE_REASSOC_RESP: | |
4960 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); | |
4961 | handle_assoc_cb(hapd, mgmt, len, 1, ok); | |
4962 | break; | |
4963 | case WLAN_FC_STYPE_PROBE_RESP: | |
077dcfb8 | 4964 | wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb ok=%d", ok); |
6fc6879b JM |
4965 | break; |
4966 | case WLAN_FC_STYPE_DEAUTH: | |
4dc03726 JM |
4967 | wpa_printf(MSG_DEBUG, "mgmt::deauth cb"); |
4968 | handle_deauth_cb(hapd, mgmt, len, ok); | |
4969 | break; | |
4970 | case WLAN_FC_STYPE_DISASSOC: | |
4971 | wpa_printf(MSG_DEBUG, "mgmt::disassoc cb"); | |
4972 | handle_disassoc_cb(hapd, mgmt, len, ok); | |
6fc6879b | 4973 | break; |
5d22a1d5 | 4974 | case WLAN_FC_STYPE_ACTION: |
077dcfb8 | 4975 | wpa_printf(MSG_DEBUG, "mgmt::action cb ok=%d", ok); |
f3383366 | 4976 | handle_action_cb(hapd, mgmt, len, ok); |
5d22a1d5 | 4977 | break; |
6fc6879b | 4978 | default: |
61323e70 | 4979 | wpa_printf(MSG_INFO, "unknown mgmt cb frame subtype %d", stype); |
6fc6879b JM |
4980 | break; |
4981 | } | |
4982 | } | |
4983 | ||
4984 | ||
6fc6879b JM |
4985 | int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) |
4986 | { | |
4987 | /* TODO */ | |
4988 | return 0; | |
4989 | } | |
4990 | ||
4991 | ||
4992 | int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, | |
4993 | char *buf, size_t buflen) | |
4994 | { | |
4995 | /* TODO */ | |
4996 | return 0; | |
4997 | } | |
4998 | ||
f8b1f695 JM |
4999 | |
5000 | void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, | |
5001 | const u8 *buf, size_t len, int ack) | |
5002 | { | |
5003 | struct sta_info *sta; | |
5004 | struct hostapd_iface *iface = hapd->iface; | |
5005 | ||
5006 | sta = ap_get_sta(hapd, addr); | |
5007 | if (sta == NULL && iface->num_bss > 1) { | |
5008 | size_t j; | |
5009 | for (j = 0; j < iface->num_bss; j++) { | |
5010 | hapd = iface->bss[j]; | |
5011 | sta = ap_get_sta(hapd, addr); | |
5012 | if (sta) | |
5013 | break; | |
5014 | } | |
5015 | } | |
0c01d65d | 5016 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) |
f8b1f695 JM |
5017 | return; |
5018 | if (sta->flags & WLAN_STA_PENDING_POLL) { | |
5019 | wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " | |
5020 | "activity poll", MAC2STR(sta->addr), | |
5021 | ack ? "ACKed" : "did not ACK"); | |
5022 | if (ack) | |
5023 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
5024 | } | |
5025 | ||
5026 | ieee802_1x_tx_status(hapd, sta, buf, len, ack); | |
5027 | } | |
5028 | ||
5029 | ||
dd840f79 JB |
5030 | void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst, |
5031 | const u8 *data, size_t len, int ack) | |
5032 | { | |
5033 | struct sta_info *sta; | |
5034 | struct hostapd_iface *iface = hapd->iface; | |
5035 | ||
5036 | sta = ap_get_sta(hapd, dst); | |
5037 | if (sta == NULL && iface->num_bss > 1) { | |
5038 | size_t j; | |
5039 | for (j = 0; j < iface->num_bss; j++) { | |
5040 | hapd = iface->bss[j]; | |
5041 | sta = ap_get_sta(hapd, dst); | |
5042 | if (sta) | |
5043 | break; | |
5044 | } | |
5045 | } | |
d9a38716 JM |
5046 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { |
5047 | wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA " | |
5048 | MACSTR " that is not currently associated", | |
5049 | MAC2STR(dst)); | |
dd840f79 | 5050 | return; |
d9a38716 | 5051 | } |
dd840f79 JB |
5052 | |
5053 | ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack); | |
5054 | } | |
5055 | ||
5056 | ||
bcf24348 JB |
5057 | void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr) |
5058 | { | |
5059 | struct sta_info *sta; | |
5060 | struct hostapd_iface *iface = hapd->iface; | |
5061 | ||
5062 | sta = ap_get_sta(hapd, addr); | |
5063 | if (sta == NULL && iface->num_bss > 1) { | |
5064 | size_t j; | |
5065 | for (j = 0; j < iface->num_bss; j++) { | |
5066 | hapd = iface->bss[j]; | |
5067 | sta = ap_get_sta(hapd, addr); | |
5068 | if (sta) | |
5069 | break; | |
5070 | } | |
5071 | } | |
5072 | if (sta == NULL) | |
5073 | return; | |
1854eeca JM |
5074 | wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POLL_OK MACSTR, |
5075 | MAC2STR(sta->addr)); | |
bcf24348 JB |
5076 | if (!(sta->flags & WLAN_STA_PENDING_POLL)) |
5077 | return; | |
5078 | ||
5079 | wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending " | |
5080 | "activity poll", MAC2STR(sta->addr)); | |
5081 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
5082 | } | |
5083 | ||
5084 | ||
fbbfcbac FF |
5085 | void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, |
5086 | int wds) | |
f8b1f695 JM |
5087 | { |
5088 | struct sta_info *sta; | |
5089 | ||
5090 | sta = ap_get_sta(hapd, src); | |
1f0fdaf0 JM |
5091 | if (sta && |
5092 | ((sta->flags & WLAN_STA_ASSOC) || | |
5093 | ((sta->flags & WLAN_STA_ASSOC_REQ_OK) && wds))) { | |
99743811 FF |
5094 | if (!hapd->conf->wds_sta) |
5095 | return; | |
5096 | ||
1f0fdaf0 JM |
5097 | if ((sta->flags & (WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK)) == |
5098 | WLAN_STA_ASSOC_REQ_OK) { | |
5099 | wpa_printf(MSG_DEBUG, | |
5100 | "Postpone 4-address WDS mode enabling for STA " | |
5101 | MACSTR " since TX status for AssocResp is not yet known", | |
5102 | MAC2STR(sta->addr)); | |
5103 | sta->pending_wds_enable = 1; | |
5104 | return; | |
5105 | } | |
5106 | ||
fbbfcbac | 5107 | if (wds && !(sta->flags & WLAN_STA_WDS)) { |
69dd2967 SM |
5108 | int ret; |
5109 | char ifname_wds[IFNAMSIZ + 1]; | |
5110 | ||
fbbfcbac FF |
5111 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " |
5112 | "STA " MACSTR " (aid %u)", | |
5113 | MAC2STR(sta->addr), sta->aid); | |
5114 | sta->flags |= WLAN_STA_WDS; | |
69dd2967 SM |
5115 | ret = hostapd_set_wds_sta(hapd, ifname_wds, |
5116 | sta->addr, sta->aid, 1); | |
5117 | if (!ret) | |
5118 | hostapd_set_wds_encryption(hapd, sta, | |
5119 | ifname_wds); | |
fbbfcbac | 5120 | } |
f8b1f695 | 5121 | return; |
fbbfcbac | 5122 | } |
f8b1f695 JM |
5123 | |
5124 | wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " | |
5125 | MACSTR, MAC2STR(src)); | |
81372e34 | 5126 | if (is_multicast_ether_addr(src)) { |
1df492df JM |
5127 | /* Broadcast bit set in SA?! Ignore the frame silently. */ |
5128 | return; | |
5129 | } | |
5130 | ||
b8281964 JM |
5131 | if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) { |
5132 | wpa_printf(MSG_DEBUG, "Association Response to the STA has " | |
5133 | "already been sent, but no TX status yet known - " | |
5134 | "ignore Class 3 frame issue with " MACSTR, | |
5135 | MAC2STR(src)); | |
5136 | return; | |
5137 | } | |
5138 | ||
f8b1f695 | 5139 | if (sta && (sta->flags & WLAN_STA_AUTH)) |
51e2a27a | 5140 | hostapd_drv_sta_disassoc( |
f8b1f695 JM |
5141 | hapd, src, |
5142 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
5143 | else | |
51e2a27a | 5144 | hostapd_drv_sta_deauth( |
f8b1f695 JM |
5145 | hapd, src, |
5146 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
5147 | } | |
5148 | ||
5149 | ||
6fc6879b | 5150 | #endif /* CONFIG_NATIVE_WINDOWS */ |