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Commit | Line | Data |
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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" |
03da66bd JM |
24 | #include "radius/radius.h" |
25 | #include "radius/radius_client.h" | |
e44f8bf2 | 26 | #include "p2p/p2p.h" |
ed7a09f9 | 27 | #include "wps/wps.h" |
037378ff | 28 | #include "fst/fst.h" |
6fc6879b | 29 | #include "hostapd.h" |
6fc6879b | 30 | #include "beacon.h" |
6fc6879b JM |
31 | #include "ieee802_11_auth.h" |
32 | #include "sta_info.h" | |
6fc6879b | 33 | #include "ieee802_1x.h" |
6226e38d | 34 | #include "wpa_auth.h" |
f2991170 | 35 | #include "pmksa_cache_auth.h" |
1057d78e | 36 | #include "wmm.h" |
6fc6879b JM |
37 | #include "ap_list.h" |
38 | #include "accounting.h" | |
6226e38d JM |
39 | #include "ap_config.h" |
40 | #include "ap_mlme.h" | |
dce044cc | 41 | #include "p2p_hostapd.h" |
cee7d66b | 42 | #include "ap_drv_ops.h" |
c79938a5 | 43 | #include "wnm_ap.h" |
0e2412d0 | 44 | #include "hw_features.h" |
6226e38d | 45 | #include "ieee802_11.h" |
3d7ad2f6 | 46 | #include "dfs.h" |
6332aaf3 | 47 | #include "mbo_ap.h" |
2572df34 | 48 | #include "rrm.h" |
04059ab8 | 49 | #include "taxonomy.h" |
54b04d6f | 50 | #include "fils_hlp.h" |
9c2b8204 JM |
51 | #include "dpp_hostapd.h" |
52 | #include "gas_query_ap.h" | |
6fc6879b JM |
53 | |
54 | ||
5e5f8c81 JM |
55 | #ifdef CONFIG_FILS |
56 | static struct wpabuf * | |
57 | prepare_auth_resp_fils(struct hostapd_data *hapd, | |
58 | struct sta_info *sta, u16 *resp, | |
59 | struct rsn_pmksa_cache_entry *pmksa, | |
60 | struct wpabuf *erp_resp, | |
61 | const u8 *msk, size_t msk_len, | |
62 | int *is_pub); | |
63 | #endif /* CONFIG_FILS */ | |
64 | ||
6fc6879b JM |
65 | u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) |
66 | { | |
67 | u8 *pos = eid; | |
68 | int i, num, count; | |
69 | ||
70 | if (hapd->iface->current_rates == NULL) | |
71 | return eid; | |
72 | ||
73 | *pos++ = WLAN_EID_SUPP_RATES; | |
74 | num = hapd->iface->num_rates; | |
29448243 JM |
75 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
76 | num++; | |
202d97d4 JB |
77 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
78 | num++; | |
6fc6879b JM |
79 | if (num > 8) { |
80 | /* rest of the rates are encoded in Extended supported | |
81 | * rates element */ | |
82 | num = 8; | |
83 | } | |
84 | ||
85 | *pos++ = num; | |
6fc6879b JM |
86 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num; |
87 | i++) { | |
88 | count++; | |
89 | *pos = hapd->iface->current_rates[i].rate / 5; | |
90 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
91 | *pos |= 0x80; | |
92 | pos++; | |
93 | } | |
94 | ||
202d97d4 JB |
95 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) { |
96 | count++; | |
29448243 | 97 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; |
202d97d4 JB |
98 | } |
99 | ||
100 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) { | |
101 | count++; | |
102 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
103 | } | |
29448243 | 104 | |
6fc6879b JM |
105 | return pos; |
106 | } | |
107 | ||
108 | ||
109 | u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid) | |
110 | { | |
111 | u8 *pos = eid; | |
112 | int i, num, count; | |
113 | ||
114 | if (hapd->iface->current_rates == NULL) | |
115 | return eid; | |
116 | ||
117 | num = hapd->iface->num_rates; | |
29448243 JM |
118 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) |
119 | num++; | |
202d97d4 JB |
120 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) |
121 | num++; | |
6fc6879b JM |
122 | if (num <= 8) |
123 | return eid; | |
124 | num -= 8; | |
125 | ||
126 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
127 | *pos++ = num; | |
6fc6879b JM |
128 | for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8; |
129 | i++) { | |
130 | count++; | |
131 | if (count <= 8) | |
132 | continue; /* already in SuppRates IE */ | |
133 | *pos = hapd->iface->current_rates[i].rate / 5; | |
134 | if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC) | |
135 | *pos |= 0x80; | |
136 | pos++; | |
137 | } | |
138 | ||
202d97d4 JB |
139 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) { |
140 | count++; | |
141 | if (count > 8) | |
142 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY; | |
143 | } | |
144 | ||
145 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) { | |
146 | count++; | |
147 | if (count > 8) | |
148 | *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY; | |
149 | } | |
29448243 | 150 | |
6fc6879b JM |
151 | return pos; |
152 | } | |
153 | ||
154 | ||
f41ded6f | 155 | u16 hostapd_own_capab_info(struct hostapd_data *hapd) |
6fc6879b JM |
156 | { |
157 | int capab = WLAN_CAPABILITY_ESS; | |
158 | int privacy; | |
3d7ad2f6 | 159 | int dfs; |
01018212 | 160 | int i; |
3d7ad2f6 C |
161 | |
162 | /* Check if any of configured channels require DFS */ | |
163 | dfs = hostapd_is_dfs_required(hapd->iface); | |
164 | if (dfs < 0) { | |
165 | wpa_printf(MSG_WARNING, "Failed to check if DFS is required; ret=%d", | |
166 | dfs); | |
167 | dfs = 0; | |
168 | } | |
6fc6879b JM |
169 | |
170 | if (hapd->iface->num_sta_no_short_preamble == 0 && | |
171 | hapd->iconf->preamble == SHORT_PREAMBLE) | |
172 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
173 | ||
174 | privacy = hapd->conf->ssid.wep.keys_set; | |
175 | ||
176 | if (hapd->conf->ieee802_1x && | |
177 | (hapd->conf->default_wep_key_len || | |
178 | hapd->conf->individual_wep_key_len)) | |
179 | privacy = 1; | |
180 | ||
181 | if (hapd->conf->wpa) | |
182 | privacy = 1; | |
183 | ||
a14896e8 JM |
184 | #ifdef CONFIG_HS20 |
185 | if (hapd->conf->osen) | |
186 | privacy = 1; | |
187 | #endif /* CONFIG_HS20 */ | |
188 | ||
6fc6879b JM |
189 | if (privacy) |
190 | capab |= WLAN_CAPABILITY_PRIVACY; | |
191 | ||
192 | if (hapd->iface->current_mode && | |
193 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G && | |
194 | hapd->iface->num_sta_no_short_slot_time == 0) | |
195 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
196 | ||
3d7ad2f6 C |
197 | /* |
198 | * Currently, Spectrum Management capability bit is set when directly | |
199 | * requested in configuration by spectrum_mgmt_required or when AP is | |
200 | * running on DFS channel. | |
201 | * TODO: Also consider driver support for TPC to set Spectrum Mgmt bit | |
202 | */ | |
203 | if (hapd->iface->current_mode && | |
204 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211A && | |
205 | (hapd->iconf->spectrum_mgmt_required || dfs)) | |
206 | capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; | |
207 | ||
01018212 DS |
208 | for (i = 0; i < RRM_CAPABILITIES_IE_LEN; i++) { |
209 | if (hapd->conf->radio_measurements[i]) { | |
210 | capab |= IEEE80211_CAP_RRM; | |
211 | break; | |
212 | } | |
213 | } | |
0629eeb4 | 214 | |
6fc6879b JM |
215 | return capab; |
216 | } | |
217 | ||
218 | ||
7cb53ded | 219 | #ifndef CONFIG_NO_RC4 |
6fc6879b | 220 | static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c JM |
221 | u16 auth_transaction, const u8 *challenge, |
222 | int iswep) | |
6fc6879b JM |
223 | { |
224 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
225 | HOSTAPD_LEVEL_DEBUG, | |
226 | "authentication (shared key, transaction %d)", | |
227 | auth_transaction); | |
228 | ||
229 | if (auth_transaction == 1) { | |
230 | if (!sta->challenge) { | |
231 | /* Generate a pseudo-random challenge */ | |
232 | u8 key[8]; | |
f441e5af | 233 | |
6fc6879b JM |
234 | sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN); |
235 | if (sta->challenge == NULL) | |
236 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
237 | ||
f441e5af NL |
238 | if (os_get_random(key, sizeof(key)) < 0) { |
239 | os_free(sta->challenge); | |
240 | sta->challenge = NULL; | |
241 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
242 | } | |
243 | ||
8ef16831 JM |
244 | rc4_skip(key, sizeof(key), 0, |
245 | sta->challenge, WLAN_AUTH_CHALLENGE_LEN); | |
6fc6879b JM |
246 | } |
247 | return 0; | |
248 | } | |
249 | ||
250 | if (auth_transaction != 3) | |
251 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
252 | ||
253 | /* Transaction 3 */ | |
254 | if (!iswep || !sta->challenge || !challenge || | |
34ef46ce JM |
255 | os_memcmp_const(sta->challenge, challenge, |
256 | WLAN_AUTH_CHALLENGE_LEN)) { | |
6fc6879b JM |
257 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
258 | HOSTAPD_LEVEL_INFO, | |
259 | "shared key authentication - invalid " | |
260 | "challenge-response"); | |
261 | return WLAN_STATUS_CHALLENGE_FAIL; | |
262 | } | |
263 | ||
264 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
265 | HOSTAPD_LEVEL_DEBUG, | |
266 | "authentication OK (shared key)"); | |
6fc6879b JM |
267 | sta->flags |= WLAN_STA_AUTH; |
268 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
6fc6879b JM |
269 | os_free(sta->challenge); |
270 | sta->challenge = NULL; | |
271 | ||
272 | return 0; | |
273 | } | |
7cb53ded | 274 | #endif /* CONFIG_NO_RC4 */ |
6fc6879b JM |
275 | |
276 | ||
bb598c3b AB |
277 | static int send_auth_reply(struct hostapd_data *hapd, |
278 | const u8 *dst, const u8 *bssid, | |
279 | u16 auth_alg, u16 auth_transaction, u16 resp, | |
e7525a29 | 280 | const u8 *ies, size_t ies_len, const char *dbg) |
6fc6879b JM |
281 | { |
282 | struct ieee80211_mgmt *reply; | |
283 | u8 *buf; | |
284 | size_t rlen; | |
bb598c3b | 285 | int reply_res = WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
286 | |
287 | rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len; | |
288 | buf = os_zalloc(rlen); | |
289 | if (buf == NULL) | |
bb598c3b | 290 | return -1; |
6fc6879b JM |
291 | |
292 | reply = (struct ieee80211_mgmt *) buf; | |
293 | reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
294 | WLAN_FC_STYPE_AUTH); | |
6fc6879b JM |
295 | os_memcpy(reply->da, dst, ETH_ALEN); |
296 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); | |
297 | os_memcpy(reply->bssid, bssid, ETH_ALEN); | |
298 | ||
299 | reply->u.auth.auth_alg = host_to_le16(auth_alg); | |
300 | reply->u.auth.auth_transaction = host_to_le16(auth_transaction); | |
301 | reply->u.auth.status_code = host_to_le16(resp); | |
302 | ||
303 | if (ies && ies_len) | |
304 | os_memcpy(reply->u.auth.variable, ies, ies_len); | |
305 | ||
306 | wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR | |
e7525a29 | 307 | " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu) (dbg=%s)", |
6fc6879b | 308 | MAC2STR(dst), auth_alg, auth_transaction, |
e7525a29 | 309 | resp, (unsigned long) ies_len, dbg); |
8cfa3527 | 310 | if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0) |
bb598c3b AB |
311 | wpa_printf(MSG_INFO, "send_auth_reply: send failed"); |
312 | else | |
313 | reply_res = WLAN_STATUS_SUCCESS; | |
6fc6879b JM |
314 | |
315 | os_free(buf); | |
bb598c3b AB |
316 | |
317 | return reply_res; | |
6fc6879b JM |
318 | } |
319 | ||
320 | ||
4ec1fd8e | 321 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b JM |
322 | static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid, |
323 | u16 auth_transaction, u16 status, | |
324 | const u8 *ies, size_t ies_len) | |
325 | { | |
326 | struct hostapd_data *hapd = ctx; | |
327 | struct sta_info *sta; | |
bb598c3b | 328 | int reply_res; |
6fc6879b | 329 | |
bb598c3b | 330 | reply_res = send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, |
e7525a29 BG |
331 | auth_transaction, status, ies, ies_len, |
332 | "auth-ft-finish"); | |
6fc6879b JM |
333 | |
334 | sta = ap_get_sta(hapd, dst); | |
335 | if (sta == NULL) | |
336 | return; | |
337 | ||
bb598c3b AB |
338 | if (sta->added_unassoc && (reply_res != WLAN_STATUS_SUCCESS || |
339 | status != WLAN_STATUS_SUCCESS)) { | |
340 | hostapd_drv_sta_remove(hapd, sta->addr); | |
341 | sta->added_unassoc = 0; | |
342 | return; | |
343 | } | |
344 | ||
345 | if (status != WLAN_STATUS_SUCCESS) | |
346 | return; | |
347 | ||
6fc6879b JM |
348 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, |
349 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
350 | sta->flags |= WLAN_STA_AUTH; | |
351 | mlme_authenticate_indication(hapd, sta); | |
352 | } | |
4ec1fd8e | 353 | #endif /* CONFIG_IEEE80211R_AP */ |
6fc6879b JM |
354 | |
355 | ||
c10347f2 | 356 | #ifdef CONFIG_SAE |
21af6d15 | 357 | |
9249afc8 JM |
358 | static void sae_set_state(struct sta_info *sta, enum sae_state state, |
359 | const char *reason) | |
360 | { | |
361 | wpa_printf(MSG_DEBUG, "SAE: State %s -> %s for peer " MACSTR " (%s)", | |
362 | sae_state_txt(sta->sae->state), sae_state_txt(state), | |
363 | MAC2STR(sta->addr), reason); | |
364 | sta->sae->state = state; | |
365 | } | |
366 | ||
367 | ||
e96da42b | 368 | static struct wpabuf * auth_build_sae_commit(struct hostapd_data *hapd, |
872b7545 | 369 | struct sta_info *sta, int update) |
21af6d15 JM |
370 | { |
371 | struct wpabuf *buf; | |
9be19d0b JM |
372 | const char *password = NULL; |
373 | struct sae_password_entry *pw; | |
374 | const char *rx_id = NULL; | |
21af6d15 | 375 | |
9be19d0b JM |
376 | if (sta->sae->tmp) |
377 | rx_id = sta->sae->tmp->pw_id; | |
378 | ||
379 | for (pw = hapd->conf->sae_passwords; pw; pw = pw->next) { | |
380 | if (!is_broadcast_ether_addr(pw->peer_addr) && | |
381 | os_memcmp(pw->peer_addr, sta->addr, ETH_ALEN) != 0) | |
382 | continue; | |
383 | if ((rx_id && !pw->identifier) || (!rx_id && pw->identifier)) | |
384 | continue; | |
385 | if (rx_id && pw->identifier && | |
386 | os_strcmp(rx_id, pw->identifier) != 0) | |
387 | continue; | |
388 | password = pw->password; | |
389 | break; | |
390 | } | |
2377c1ca JM |
391 | if (!password) |
392 | password = hapd->conf->ssid.wpa_passphrase; | |
393 | if (!password) { | |
146f6c9a JM |
394 | wpa_printf(MSG_DEBUG, "SAE: No password available"); |
395 | return NULL; | |
396 | } | |
397 | ||
872b7545 MH |
398 | if (update && |
399 | sae_prepare_commit(hapd->own_addr, sta->addr, | |
9be19d0b | 400 | (u8 *) password, os_strlen(password), rx_id, |
8e31e955 JM |
401 | sta->sae) < 0) { |
402 | wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE"); | |
21af6d15 | 403 | return NULL; |
8e31e955 | 404 | } |
21af6d15 | 405 | |
9be19d0b JM |
406 | buf = wpabuf_alloc(SAE_COMMIT_MAX_LEN + |
407 | (rx_id ? 3 + os_strlen(rx_id) : 0)); | |
8e31e955 JM |
408 | if (buf == NULL) |
409 | return NULL; | |
872b7545 | 410 | sae_write_commit(sta->sae, buf, sta->sae->tmp ? |
9be19d0b | 411 | sta->sae->tmp->anti_clogging_token : NULL, rx_id); |
21af6d15 JM |
412 | |
413 | return buf; | |
414 | } | |
415 | ||
416 | ||
417 | static struct wpabuf * auth_build_sae_confirm(struct hostapd_data *hapd, | |
418 | struct sta_info *sta) | |
419 | { | |
420 | struct wpabuf *buf; | |
421 | ||
fb8fcc29 | 422 | buf = wpabuf_alloc(SAE_CONFIRM_MAX_LEN); |
21af6d15 JM |
423 | if (buf == NULL) |
424 | return NULL; | |
425 | ||
fb8fcc29 | 426 | sae_write_confirm(sta->sae, buf); |
21af6d15 JM |
427 | |
428 | return buf; | |
429 | } | |
430 | ||
431 | ||
e96da42b BC |
432 | static int auth_sae_send_commit(struct hostapd_data *hapd, |
433 | struct sta_info *sta, | |
872b7545 | 434 | const u8 *bssid, int update) |
e96da42b BC |
435 | { |
436 | struct wpabuf *data; | |
bb598c3b | 437 | int reply_res; |
e96da42b | 438 | |
872b7545 | 439 | data = auth_build_sae_commit(hapd, sta, update); |
9be19d0b JM |
440 | if (!data && sta->sae->tmp && sta->sae->tmp->pw_id) |
441 | return WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER; | |
e96da42b BC |
442 | if (data == NULL) |
443 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
444 | ||
bb598c3b AB |
445 | reply_res = send_auth_reply(hapd, sta->addr, bssid, WLAN_AUTH_SAE, 1, |
446 | WLAN_STATUS_SUCCESS, wpabuf_head(data), | |
e7525a29 | 447 | wpabuf_len(data), "sae-send-commit"); |
e96da42b BC |
448 | |
449 | wpabuf_free(data); | |
450 | ||
bb598c3b | 451 | return reply_res; |
e96da42b BC |
452 | } |
453 | ||
454 | ||
455 | static int auth_sae_send_confirm(struct hostapd_data *hapd, | |
456 | struct sta_info *sta, | |
457 | const u8 *bssid) | |
458 | { | |
459 | struct wpabuf *data; | |
bb598c3b | 460 | int reply_res; |
e96da42b BC |
461 | |
462 | data = auth_build_sae_confirm(hapd, sta); | |
463 | if (data == NULL) | |
464 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
465 | ||
bb598c3b AB |
466 | reply_res = send_auth_reply(hapd, sta->addr, bssid, WLAN_AUTH_SAE, 2, |
467 | WLAN_STATUS_SUCCESS, wpabuf_head(data), | |
e7525a29 | 468 | wpabuf_len(data), "sae-send-confirm"); |
e96da42b BC |
469 | |
470 | wpabuf_free(data); | |
471 | ||
bb598c3b | 472 | return reply_res; |
e96da42b BC |
473 | } |
474 | ||
475 | ||
d136c376 JM |
476 | static int use_sae_anti_clogging(struct hostapd_data *hapd) |
477 | { | |
478 | struct sta_info *sta; | |
479 | unsigned int open = 0; | |
480 | ||
481 | if (hapd->conf->sae_anti_clogging_threshold == 0) | |
482 | return 1; | |
483 | ||
484 | for (sta = hapd->sta_list; sta; sta = sta->next) { | |
485 | if (!sta->sae) | |
486 | continue; | |
487 | if (sta->sae->state != SAE_COMMITTED && | |
488 | sta->sae->state != SAE_CONFIRMED) | |
489 | continue; | |
490 | open++; | |
491 | if (open >= hapd->conf->sae_anti_clogging_threshold) | |
492 | return 1; | |
493 | } | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
498 | ||
499 | static int check_sae_token(struct hostapd_data *hapd, const u8 *addr, | |
500 | const u8 *token, size_t token_len) | |
501 | { | |
502 | u8 mac[SHA256_MAC_LEN]; | |
503 | ||
504 | if (token_len != SHA256_MAC_LEN) | |
505 | return -1; | |
506 | if (hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
507 | addr, ETH_ALEN, mac) < 0 || | |
0233dcac | 508 | os_memcmp_const(token, mac, SHA256_MAC_LEN) != 0) |
d136c376 JM |
509 | return -1; |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
514 | ||
515 | static struct wpabuf * auth_build_token_req(struct hostapd_data *hapd, | |
a959a3b6 | 516 | int group, const u8 *addr) |
d136c376 JM |
517 | { |
518 | struct wpabuf *buf; | |
519 | u8 *token; | |
fe52c210 | 520 | struct os_reltime now; |
d136c376 | 521 | |
fe52c210 JB |
522 | os_get_reltime(&now); |
523 | if (!os_reltime_initialized(&hapd->last_sae_token_key_update) || | |
524 | os_reltime_expired(&now, &hapd->last_sae_token_key_update, 60)) { | |
a50414c3 JM |
525 | if (random_get_bytes(hapd->sae_token_key, |
526 | sizeof(hapd->sae_token_key)) < 0) | |
527 | return NULL; | |
d136c376 JM |
528 | wpa_hexdump(MSG_DEBUG, "SAE: Updated token key", |
529 | hapd->sae_token_key, sizeof(hapd->sae_token_key)); | |
fe52c210 | 530 | hapd->last_sae_token_key_update = now; |
d136c376 JM |
531 | } |
532 | ||
a959a3b6 | 533 | buf = wpabuf_alloc(sizeof(le16) + SHA256_MAC_LEN); |
d136c376 JM |
534 | if (buf == NULL) |
535 | return NULL; | |
536 | ||
a959a3b6 MH |
537 | wpabuf_put_le16(buf, group); /* Finite Cyclic Group */ |
538 | ||
d136c376 JM |
539 | token = wpabuf_put(buf, SHA256_MAC_LEN); |
540 | hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key), | |
541 | addr, ETH_ALEN, token); | |
542 | ||
543 | return buf; | |
544 | } | |
545 | ||
546 | ||
d8b841eb | 547 | static int sae_check_big_sync(struct hostapd_data *hapd, struct sta_info *sta) |
f3b8ad4d | 548 | { |
d8b841eb | 549 | if (sta->sae->sync > hapd->conf->sae_sync) { |
9249afc8 | 550 | sae_set_state(sta, SAE_NOTHING, "Sync > dot11RSNASAESync"); |
f3b8ad4d BC |
551 | sta->sae->sync = 0; |
552 | return -1; | |
553 | } | |
554 | return 0; | |
555 | } | |
556 | ||
557 | ||
558 | static void auth_sae_retransmit_timer(void *eloop_ctx, void *eloop_data) | |
559 | { | |
560 | struct hostapd_data *hapd = eloop_ctx; | |
561 | struct sta_info *sta = eloop_data; | |
562 | int ret; | |
563 | ||
d8b841eb | 564 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
565 | return; |
566 | sta->sae->sync++; | |
dad01292 | 567 | wpa_printf(MSG_DEBUG, "SAE: Auth SAE retransmit timer for " MACSTR |
9249afc8 JM |
568 | " (sync=%d state=%s)", |
569 | MAC2STR(sta->addr), sta->sae->sync, | |
570 | sae_state_txt(sta->sae->state)); | |
f3b8ad4d BC |
571 | |
572 | switch (sta->sae->state) { | |
573 | case SAE_COMMITTED: | |
574 | ret = auth_sae_send_commit(hapd, sta, hapd->own_addr, 0); | |
ecd40fef MH |
575 | eloop_register_timeout(0, |
576 | hapd->dot11RSNASAERetransPeriod * 1000, | |
f3b8ad4d BC |
577 | auth_sae_retransmit_timer, hapd, sta); |
578 | break; | |
579 | case SAE_CONFIRMED: | |
580 | ret = auth_sae_send_confirm(hapd, sta, hapd->own_addr); | |
ecd40fef MH |
581 | eloop_register_timeout(0, |
582 | hapd->dot11RSNASAERetransPeriod * 1000, | |
f3b8ad4d BC |
583 | auth_sae_retransmit_timer, hapd, sta); |
584 | break; | |
585 | default: | |
586 | ret = -1; | |
587 | break; | |
588 | } | |
589 | ||
590 | if (ret != WLAN_STATUS_SUCCESS) | |
591 | wpa_printf(MSG_INFO, "SAE: Failed to retransmit: ret=%d", ret); | |
592 | } | |
593 | ||
594 | ||
595 | void sae_clear_retransmit_timer(struct hostapd_data *hapd, struct sta_info *sta) | |
596 | { | |
597 | eloop_cancel_timeout(auth_sae_retransmit_timer, hapd, sta); | |
598 | } | |
599 | ||
600 | ||
601 | static void sae_set_retransmit_timer(struct hostapd_data *hapd, | |
602 | struct sta_info *sta) | |
603 | { | |
604 | if (!(hapd->conf->mesh & MESH_ENABLED)) | |
605 | return; | |
606 | ||
607 | eloop_cancel_timeout(auth_sae_retransmit_timer, hapd, sta); | |
ecd40fef | 608 | eloop_register_timeout(0, hapd->dot11RSNASAERetransPeriod * 1000, |
f3b8ad4d BC |
609 | auth_sae_retransmit_timer, hapd, sta); |
610 | } | |
611 | ||
612 | ||
9f2cf23e MH |
613 | void sae_accept_sta(struct hostapd_data *hapd, struct sta_info *sta) |
614 | { | |
615 | sta->flags |= WLAN_STA_AUTH; | |
616 | sta->auth_alg = WLAN_AUTH_SAE; | |
617 | mlme_authenticate_indication(hapd, sta); | |
618 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
9249afc8 | 619 | sae_set_state(sta, SAE_ACCEPTED, "Accept Confirm"); |
9f2cf23e MH |
620 | wpa_auth_pmksa_add_sae(hapd->wpa_auth, sta->addr, |
621 | sta->sae->pmk, sta->sae->pmkid); | |
622 | } | |
623 | ||
624 | ||
e96da42b BC |
625 | static int sae_sm_step(struct hostapd_data *hapd, struct sta_info *sta, |
626 | const u8 *bssid, u8 auth_transaction) | |
627 | { | |
628 | int ret; | |
629 | ||
630 | if (auth_transaction != 1 && auth_transaction != 2) | |
631 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
632 | ||
9249afc8 JM |
633 | wpa_printf(MSG_DEBUG, "SAE: Peer " MACSTR " state=%s auth_trans=%u", |
634 | MAC2STR(sta->addr), sae_state_txt(sta->sae->state), | |
635 | auth_transaction); | |
e96da42b BC |
636 | switch (sta->sae->state) { |
637 | case SAE_NOTHING: | |
638 | if (auth_transaction == 1) { | |
872b7545 | 639 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); |
e96da42b BC |
640 | if (ret) |
641 | return ret; | |
9249afc8 | 642 | sae_set_state(sta, SAE_COMMITTED, "Sent Commit"); |
e96da42b BC |
643 | |
644 | if (sae_process_commit(sta->sae) < 0) | |
645 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
646 | ||
647 | /* | |
648 | * In mesh case, both Commit and Confirm can be sent | |
649 | * immediately. In infrastructure BSS, only a single | |
650 | * Authentication frame (Commit) is expected from the AP | |
651 | * here and the second one (Confirm) will be sent once | |
652 | * the STA has sent its second Authentication frame | |
653 | * (Confirm). | |
654 | */ | |
655 | if (hapd->conf->mesh & MESH_ENABLED) { | |
656 | /* | |
657 | * Send both Commit and Confirm immediately | |
658 | * based on SAE finite state machine | |
659 | * Nothing -> Confirm transition. | |
660 | */ | |
661 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
662 | if (ret) | |
663 | return ret; | |
9249afc8 JM |
664 | sae_set_state(sta, SAE_CONFIRMED, |
665 | "Sent Confirm (mesh)"); | |
e96da42b BC |
666 | } else { |
667 | /* | |
668 | * For infrastructure BSS, send only the Commit | |
669 | * message now to get alternating sequence of | |
670 | * Authentication frames between the AP and STA. | |
671 | * Confirm will be sent in | |
746e5c25 | 672 | * Committed -> Confirmed/Accepted transition |
e96da42b BC |
673 | * when receiving Confirm from STA. |
674 | */ | |
675 | } | |
f3b8ad4d BC |
676 | sta->sae->sync = 0; |
677 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
678 | } else { |
679 | hostapd_logger(hapd, sta->addr, | |
680 | HOSTAPD_MODULE_IEEE80211, | |
681 | HOSTAPD_LEVEL_DEBUG, | |
682 | "SAE confirm before commit"); | |
683 | } | |
684 | break; | |
685 | case SAE_COMMITTED: | |
f3b8ad4d | 686 | sae_clear_retransmit_timer(hapd, sta); |
e96da42b BC |
687 | if (auth_transaction == 1) { |
688 | if (sae_process_commit(sta->sae) < 0) | |
689 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
690 | ||
691 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
692 | if (ret) | |
693 | return ret; | |
9249afc8 | 694 | sae_set_state(sta, SAE_CONFIRMED, "Sent Confirm"); |
f3b8ad4d BC |
695 | sta->sae->sync = 0; |
696 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
697 | } else if (hapd->conf->mesh & MESH_ENABLED) { |
698 | /* | |
699 | * In mesh case, follow SAE finite state machine and | |
f3b8ad4d | 700 | * send Commit now, if sync count allows. |
e96da42b | 701 | */ |
d8b841eb | 702 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
703 | return WLAN_STATUS_SUCCESS; |
704 | sta->sae->sync++; | |
705 | ||
fabc6dd8 | 706 | ret = auth_sae_send_commit(hapd, sta, bssid, 0); |
e96da42b BC |
707 | if (ret) |
708 | return ret; | |
f3b8ad4d BC |
709 | |
710 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b BC |
711 | } else { |
712 | /* | |
713 | * For instructure BSS, send the postponed Confirm from | |
714 | * Nothing -> Confirmed transition that was reduced to | |
715 | * Nothing -> Committed above. | |
716 | */ | |
717 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
718 | if (ret) | |
719 | return ret; | |
720 | ||
9249afc8 | 721 | sae_set_state(sta, SAE_CONFIRMED, "Sent Confirm"); |
e96da42b BC |
722 | |
723 | /* | |
724 | * Since this was triggered on Confirm RX, run another | |
725 | * step to get to Accepted without waiting for | |
726 | * additional events. | |
727 | */ | |
728 | return sae_sm_step(hapd, sta, bssid, auth_transaction); | |
729 | } | |
730 | break; | |
731 | case SAE_CONFIRMED: | |
f3b8ad4d | 732 | sae_clear_retransmit_timer(hapd, sta); |
e96da42b | 733 | if (auth_transaction == 1) { |
d8b841eb | 734 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
735 | return WLAN_STATUS_SUCCESS; |
736 | sta->sae->sync++; | |
737 | ||
872b7545 | 738 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); |
e96da42b BC |
739 | if (ret) |
740 | return ret; | |
741 | ||
742 | if (sae_process_commit(sta->sae) < 0) | |
743 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
744 | ||
745 | ret = auth_sae_send_confirm(hapd, sta, bssid); | |
746 | if (ret) | |
747 | return ret; | |
f3b8ad4d BC |
748 | |
749 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b | 750 | } else { |
c4fc7e31 | 751 | sta->sae->send_confirm = 0xffff; |
9f2cf23e | 752 | sae_accept_sta(hapd, sta); |
e96da42b BC |
753 | } |
754 | break; | |
755 | case SAE_ACCEPTED: | |
e8d08cf3 JM |
756 | if (auth_transaction == 1 && |
757 | (hapd->conf->mesh & MESH_ENABLED)) { | |
e96da42b BC |
758 | wpa_printf(MSG_DEBUG, "SAE: remove the STA (" MACSTR |
759 | ") doing reauthentication", | |
760 | MAC2STR(sta->addr)); | |
761 | ap_free_sta(hapd, sta); | |
9f2cf23e | 762 | wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr); |
e8d08cf3 JM |
763 | } else if (auth_transaction == 1) { |
764 | wpa_printf(MSG_DEBUG, "SAE: Start reauthentication"); | |
765 | ret = auth_sae_send_commit(hapd, sta, bssid, 1); | |
766 | if (ret) | |
767 | return ret; | |
768 | sae_set_state(sta, SAE_COMMITTED, "Sent Commit"); | |
769 | ||
770 | if (sae_process_commit(sta->sae) < 0) | |
771 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
772 | sta->sae->sync = 0; | |
773 | sae_set_retransmit_timer(hapd, sta); | |
e96da42b | 774 | } else { |
d8b841eb | 775 | if (sae_check_big_sync(hapd, sta)) |
f3b8ad4d BC |
776 | return WLAN_STATUS_SUCCESS; |
777 | sta->sae->sync++; | |
778 | ||
e96da42b BC |
779 | ret = auth_sae_send_confirm(hapd, sta, bssid); |
780 | sae_clear_temp_data(sta->sae); | |
781 | if (ret) | |
782 | return ret; | |
783 | } | |
784 | break; | |
785 | default: | |
786 | wpa_printf(MSG_ERROR, "SAE: invalid state %d", | |
787 | sta->sae->state); | |
788 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
789 | } | |
790 | return WLAN_STATUS_SUCCESS; | |
791 | } | |
792 | ||
793 | ||
dad01292 JM |
794 | static void sae_pick_next_group(struct hostapd_data *hapd, struct sta_info *sta) |
795 | { | |
796 | struct sae_data *sae = sta->sae; | |
797 | int i, *groups = hapd->conf->sae_groups; | |
798 | ||
799 | if (sae->state != SAE_COMMITTED) | |
800 | return; | |
801 | ||
802 | wpa_printf(MSG_DEBUG, "SAE: Previously selected group: %d", sae->group); | |
803 | ||
804 | for (i = 0; groups && groups[i] > 0; i++) { | |
805 | if (sae->group == groups[i]) | |
806 | break; | |
807 | } | |
808 | ||
809 | if (!groups || groups[i] <= 0) { | |
810 | wpa_printf(MSG_DEBUG, | |
811 | "SAE: Previously selected group not found from the current configuration"); | |
812 | return; | |
813 | } | |
814 | ||
815 | for (;;) { | |
816 | i++; | |
817 | if (groups[i] <= 0) { | |
818 | wpa_printf(MSG_DEBUG, | |
819 | "SAE: No alternative group enabled"); | |
820 | return; | |
821 | } | |
822 | ||
823 | if (sae_set_group(sae, groups[i]) < 0) | |
824 | continue; | |
825 | ||
826 | break; | |
827 | } | |
828 | wpa_printf(MSG_DEBUG, "SAE: Selected new group: %d", groups[i]); | |
829 | } | |
830 | ||
831 | ||
c10347f2 JM |
832 | static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta, |
833 | const struct ieee80211_mgmt *mgmt, size_t len, | |
afa2ffb4 | 834 | u16 auth_transaction, u16 status_code) |
c10347f2 | 835 | { |
bb598c3b | 836 | int resp = WLAN_STATUS_SUCCESS; |
750efe6e | 837 | struct wpabuf *data = NULL; |
c10347f2 | 838 | |
e7533538 JM |
839 | #ifdef CONFIG_TESTING_OPTIONS |
840 | if (hapd->conf->sae_reflection_attack && auth_transaction == 1) { | |
841 | const u8 *pos, *end; | |
842 | ||
843 | wpa_printf(MSG_DEBUG, "SAE: TESTING - reflection attack"); | |
844 | pos = mgmt->u.auth.variable; | |
845 | end = ((const u8 *) mgmt) + len; | |
846 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
e7525a29 BG |
847 | auth_transaction, resp, pos, end - pos, |
848 | "auth-sae-reflection-attack"); | |
e7533538 JM |
849 | goto remove_sta; |
850 | } | |
3648d8a1 JM |
851 | |
852 | if (hapd->conf->sae_commit_override && auth_transaction == 1) { | |
853 | wpa_printf(MSG_DEBUG, "SAE: TESTING - commit override"); | |
854 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
855 | auth_transaction, resp, | |
856 | wpabuf_head(hapd->conf->sae_commit_override), | |
e7525a29 BG |
857 | wpabuf_len(hapd->conf->sae_commit_override), |
858 | "sae-commit-override"); | |
3648d8a1 JM |
859 | goto remove_sta; |
860 | } | |
e7533538 | 861 | #endif /* CONFIG_TESTING_OPTIONS */ |
98efcc41 | 862 | if (!sta->sae) { |
bb598c3b AB |
863 | if (auth_transaction != 1 || |
864 | status_code != WLAN_STATUS_SUCCESS) { | |
865 | resp = -1; | |
866 | goto remove_sta; | |
867 | } | |
98efcc41 | 868 | sta->sae = os_zalloc(sizeof(*sta->sae)); |
bb598c3b AB |
869 | if (!sta->sae) { |
870 | resp = -1; | |
871 | goto remove_sta; | |
872 | } | |
9249afc8 | 873 | sae_set_state(sta, SAE_NOTHING, "Init"); |
f3b8ad4d | 874 | sta->sae->sync = 0; |
98efcc41 JM |
875 | } |
876 | ||
9f2cf23e MH |
877 | if (sta->mesh_sae_pmksa_caching) { |
878 | wpa_printf(MSG_DEBUG, | |
879 | "SAE: Cancel use of mesh PMKSA caching because peer starts SAE authentication"); | |
880 | wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr); | |
881 | sta->mesh_sae_pmksa_caching = 0; | |
882 | } | |
883 | ||
c10347f2 | 884 | if (auth_transaction == 1) { |
a959a3b6 | 885 | const u8 *token = NULL, *pos, *end; |
d136c376 | 886 | size_t token_len = 0; |
c10347f2 JM |
887 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
888 | HOSTAPD_LEVEL_DEBUG, | |
afa2ffb4 JM |
889 | "start SAE authentication (RX commit, status=%u)", |
890 | status_code); | |
872b7545 MH |
891 | |
892 | if ((hapd->conf->mesh & MESH_ENABLED) && | |
afa2ffb4 JM |
893 | status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ && |
894 | sta->sae->tmp) { | |
a959a3b6 MH |
895 | pos = mgmt->u.auth.variable; |
896 | end = ((const u8 *) mgmt) + len; | |
897 | if (pos + sizeof(le16) > end) { | |
898 | wpa_printf(MSG_ERROR, | |
899 | "SAE: Too short anti-clogging token request"); | |
900 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
901 | goto reply; | |
902 | } | |
903 | resp = sae_group_allowed(sta->sae, | |
904 | hapd->conf->sae_groups, | |
905 | WPA_GET_LE16(pos)); | |
906 | if (resp != WLAN_STATUS_SUCCESS) { | |
907 | wpa_printf(MSG_ERROR, | |
908 | "SAE: Invalid group in anti-clogging token request"); | |
909 | goto reply; | |
910 | } | |
911 | pos += sizeof(le16); | |
912 | ||
872b7545 MH |
913 | wpabuf_free(sta->sae->tmp->anti_clogging_token); |
914 | sta->sae->tmp->anti_clogging_token = | |
a959a3b6 | 915 | wpabuf_alloc_copy(pos, end - pos); |
872b7545 MH |
916 | if (sta->sae->tmp->anti_clogging_token == NULL) { |
917 | wpa_printf(MSG_ERROR, | |
918 | "SAE: Failed to alloc for anti-clogging token"); | |
bb598c3b AB |
919 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
920 | goto remove_sta; | |
872b7545 MH |
921 | } |
922 | ||
923 | /* | |
924 | * IEEE Std 802.11-2012, 11.3.8.6.4: If the Status code | |
925 | * is 76, a new Commit Message shall be constructed | |
926 | * with the Anti-Clogging Token from the received | |
927 | * Authentication frame, and the commit-scalar and | |
928 | * COMMIT-ELEMENT previously sent. | |
929 | */ | |
bb598c3b AB |
930 | resp = auth_sae_send_commit(hapd, sta, mgmt->bssid, 0); |
931 | if (resp != WLAN_STATUS_SUCCESS) { | |
872b7545 MH |
932 | wpa_printf(MSG_ERROR, |
933 | "SAE: Failed to send commit message"); | |
bb598c3b | 934 | goto remove_sta; |
872b7545 | 935 | } |
9249afc8 JM |
936 | sae_set_state(sta, SAE_COMMITTED, |
937 | "Sent Commit (anti-clogging token case in mesh)"); | |
f3b8ad4d BC |
938 | sta->sae->sync = 0; |
939 | sae_set_retransmit_timer(hapd, sta); | |
872b7545 MH |
940 | return; |
941 | } | |
942 | ||
dad01292 JM |
943 | if ((hapd->conf->mesh & MESH_ENABLED) && |
944 | status_code == | |
945 | WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED && | |
946 | sta->sae->tmp) { | |
947 | wpa_printf(MSG_DEBUG, | |
948 | "SAE: Peer did not accept our SAE group"); | |
949 | sae_pick_next_group(hapd, sta); | |
950 | goto remove_sta; | |
951 | } | |
952 | ||
afa2ffb4 | 953 | if (status_code != WLAN_STATUS_SUCCESS) |
bb598c3b | 954 | goto remove_sta; |
afa2ffb4 | 955 | |
3a8dd390 JM |
956 | if (!(hapd->conf->mesh & MESH_ENABLED) && |
957 | sta->sae->state == SAE_COMMITTED) { | |
958 | /* This is needed in the infrastructure BSS case to | |
959 | * address a sequence where a STA entry may remain in | |
960 | * hostapd across two attempts to do SAE authentication | |
961 | * by the same STA. The second attempt may end up trying | |
962 | * to use a different group and that would not be | |
963 | * allowed if we remain in Committed state with the | |
964 | * previously set parameters. */ | |
965 | sae_set_state(sta, SAE_NOTHING, | |
966 | "Clear existing state to allow restart"); | |
967 | sae_clear_data(sta->sae); | |
968 | } | |
969 | ||
146f6c9a JM |
970 | resp = sae_parse_commit(sta->sae, mgmt->u.auth.variable, |
971 | ((const u8 *) mgmt) + len - | |
d136c376 | 972 | mgmt->u.auth.variable, &token, |
625f202a | 973 | &token_len, hapd->conf->sae_groups); |
6a58444d JM |
974 | if (resp == SAE_SILENTLY_DISCARD) { |
975 | wpa_printf(MSG_DEBUG, | |
976 | "SAE: Drop commit message from " MACSTR " due to reflection attack", | |
977 | MAC2STR(sta->addr)); | |
bb598c3b | 978 | goto remove_sta; |
6a58444d | 979 | } |
9be19d0b JM |
980 | |
981 | if (resp == WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER) { | |
982 | wpa_msg(hapd->msg_ctx, MSG_INFO, | |
983 | WPA_EVENT_SAE_UNKNOWN_PASSWORD_IDENTIFIER | |
984 | MACSTR, MAC2STR(sta->addr)); | |
985 | sae_clear_retransmit_timer(hapd, sta); | |
986 | sae_set_state(sta, SAE_NOTHING, | |
987 | "Unknown Password Identifier"); | |
988 | goto remove_sta; | |
989 | } | |
990 | ||
d136c376 JM |
991 | if (token && check_sae_token(hapd, sta->addr, token, token_len) |
992 | < 0) { | |
993 | wpa_printf(MSG_DEBUG, "SAE: Drop commit message with " | |
994 | "incorrect token from " MACSTR, | |
995 | MAC2STR(sta->addr)); | |
bb598c3b AB |
996 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
997 | goto remove_sta; | |
d136c376 JM |
998 | } |
999 | ||
e96da42b BC |
1000 | if (resp != WLAN_STATUS_SUCCESS) |
1001 | goto reply; | |
1002 | ||
1003 | if (!token && use_sae_anti_clogging(hapd)) { | |
1004 | wpa_printf(MSG_DEBUG, | |
1005 | "SAE: Request anti-clogging token from " | |
1006 | MACSTR, MAC2STR(sta->addr)); | |
a959a3b6 MH |
1007 | data = auth_build_token_req(hapd, sta->sae->group, |
1008 | sta->addr); | |
e96da42b | 1009 | resp = WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ; |
872b7545 | 1010 | if (hapd->conf->mesh & MESH_ENABLED) |
9249afc8 JM |
1011 | sae_set_state(sta, SAE_NOTHING, |
1012 | "Request anti-clogging token case in mesh"); | |
e96da42b | 1013 | goto reply; |
750efe6e | 1014 | } |
e96da42b BC |
1015 | |
1016 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction); | |
c10347f2 | 1017 | } else if (auth_transaction == 2) { |
c10347f2 JM |
1018 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
1019 | HOSTAPD_LEVEL_DEBUG, | |
afa2ffb4 JM |
1020 | "SAE authentication (RX confirm, status=%u)", |
1021 | status_code); | |
1022 | if (status_code != WLAN_STATUS_SUCCESS) | |
bb598c3b | 1023 | goto remove_sta; |
e96da42b BC |
1024 | if (sta->sae->state >= SAE_CONFIRMED || |
1025 | !(hapd->conf->mesh & MESH_ENABLED)) { | |
abcbd060 JM |
1026 | const u8 *var; |
1027 | size_t var_len; | |
1028 | u16 peer_send_confirm; | |
1029 | ||
1030 | var = mgmt->u.auth.variable; | |
1031 | var_len = ((u8 *) mgmt) + len - mgmt->u.auth.variable; | |
1032 | if (var_len < 2) { | |
1033 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1034 | goto reply; | |
1035 | } | |
1036 | ||
1037 | peer_send_confirm = WPA_GET_LE16(var); | |
1038 | ||
1039 | if (sta->sae->state == SAE_ACCEPTED && | |
1040 | (peer_send_confirm <= sta->sae->rc || | |
1041 | peer_send_confirm == 0xffff)) { | |
1042 | wpa_printf(MSG_DEBUG, | |
1043 | "SAE: Silently ignore unexpected Confirm from peer " | |
1044 | MACSTR | |
1045 | " (peer-send-confirm=%u Rc=%u)", | |
1046 | MAC2STR(sta->addr), | |
1047 | peer_send_confirm, sta->sae->rc); | |
1048 | return; | |
1049 | } | |
1050 | ||
1051 | if (sae_check_confirm(sta->sae, var, var_len) < 0) { | |
750efe6e | 1052 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
e96da42b | 1053 | goto reply; |
b4fd3613 | 1054 | } |
abcbd060 | 1055 | sta->sae->rc = peer_send_confirm; |
21af6d15 | 1056 | } |
e96da42b | 1057 | resp = sae_sm_step(hapd, sta, mgmt->bssid, auth_transaction); |
c10347f2 JM |
1058 | } else { |
1059 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1060 | HOSTAPD_LEVEL_DEBUG, | |
afa2ffb4 JM |
1061 | "unexpected SAE authentication transaction %u (status=%u)", |
1062 | auth_transaction, status_code); | |
1063 | if (status_code != WLAN_STATUS_SUCCESS) | |
bb598c3b | 1064 | goto remove_sta; |
c10347f2 JM |
1065 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
1066 | } | |
1067 | ||
e96da42b BC |
1068 | reply: |
1069 | if (resp != WLAN_STATUS_SUCCESS) { | |
1070 | send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE, | |
1071 | auth_transaction, resp, | |
1072 | data ? wpabuf_head(data) : (u8 *) "", | |
e7525a29 | 1073 | data ? wpabuf_len(data) : 0, "auth-sae"); |
e96da42b | 1074 | } |
bb598c3b AB |
1075 | |
1076 | remove_sta: | |
1077 | if (sta->added_unassoc && (resp != WLAN_STATUS_SUCCESS || | |
1078 | status_code != WLAN_STATUS_SUCCESS)) { | |
1079 | hostapd_drv_sta_remove(hapd, sta->addr); | |
1080 | sta->added_unassoc = 0; | |
1081 | } | |
21af6d15 | 1082 | wpabuf_free(data); |
c10347f2 | 1083 | } |
a206e2a1 BC |
1084 | |
1085 | ||
1086 | /** | |
1087 | * auth_sae_init_committed - Send COMMIT and start SAE in committed state | |
1088 | * @hapd: BSS data for the device initiating the authentication | |
1089 | * @sta: the peer to which commit authentication frame is sent | |
1090 | * | |
1091 | * This function implements Init event handling (IEEE Std 802.11-2012, | |
1092 | * 11.3.8.6.3) in which initial COMMIT message is sent. Prior to calling, the | |
1093 | * sta->sae structure should be initialized appropriately via a call to | |
1094 | * sae_prepare_commit(). | |
1095 | */ | |
1096 | int auth_sae_init_committed(struct hostapd_data *hapd, struct sta_info *sta) | |
1097 | { | |
1098 | int ret; | |
1099 | ||
1100 | if (!sta->sae || !sta->sae->tmp) | |
1101 | return -1; | |
1102 | ||
1103 | if (sta->sae->state != SAE_NOTHING) | |
1104 | return -1; | |
1105 | ||
1106 | ret = auth_sae_send_commit(hapd, sta, hapd->own_addr, 0); | |
1107 | if (ret) | |
1108 | return -1; | |
1109 | ||
9249afc8 | 1110 | sae_set_state(sta, SAE_COMMITTED, "Init and sent commit"); |
f3b8ad4d BC |
1111 | sta->sae->sync = 0; |
1112 | sae_set_retransmit_timer(hapd, sta); | |
a206e2a1 BC |
1113 | |
1114 | return 0; | |
1115 | } | |
1116 | ||
c10347f2 JM |
1117 | #endif /* CONFIG_SAE */ |
1118 | ||
1119 | ||
ffb62f22 JM |
1120 | static u16 wpa_res_to_status_code(int res) |
1121 | { | |
1122 | if (res == WPA_INVALID_GROUP) | |
1123 | return WLAN_STATUS_GROUP_CIPHER_NOT_VALID; | |
1124 | if (res == WPA_INVALID_PAIRWISE) | |
1125 | return WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; | |
1126 | if (res == WPA_INVALID_AKMP) | |
1127 | return WLAN_STATUS_AKMP_NOT_VALID; | |
1128 | if (res == WPA_ALLOC_FAIL) | |
1129 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1130 | #ifdef CONFIG_IEEE80211W | |
1131 | if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) | |
1132 | return WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; | |
1133 | if (res == WPA_INVALID_MGMT_GROUP_CIPHER) | |
feba5848 | 1134 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; |
ffb62f22 JM |
1135 | #endif /* CONFIG_IEEE80211W */ |
1136 | if (res == WPA_INVALID_MDIE) | |
1137 | return WLAN_STATUS_INVALID_MDIE; | |
567da5bb JM |
1138 | if (res == WPA_INVALID_PMKID) |
1139 | return WLAN_STATUS_INVALID_PMKID; | |
ffb62f22 JM |
1140 | if (res != WPA_IE_OK) |
1141 | return WLAN_STATUS_INVALID_IE; | |
1142 | return WLAN_STATUS_SUCCESS; | |
1143 | } | |
1144 | ||
1145 | ||
c4fd6d8a JM |
1146 | #ifdef CONFIG_FILS |
1147 | ||
1148 | static void handle_auth_fils_finish(struct hostapd_data *hapd, | |
1149 | struct sta_info *sta, u16 resp, | |
5cee22ca JM |
1150 | struct wpabuf *data, int pub); |
1151 | ||
1152 | void handle_auth_fils(struct hostapd_data *hapd, struct sta_info *sta, | |
1153 | const u8 *pos, size_t len, u16 auth_alg, | |
1154 | u16 auth_transaction, u16 status_code, | |
1155 | void (*cb)(struct hostapd_data *hapd, | |
1156 | struct sta_info *sta, u16 resp, | |
1157 | struct wpabuf *data, int pub)) | |
c4fd6d8a JM |
1158 | { |
1159 | u16 resp = WLAN_STATUS_SUCCESS; | |
b8a3453a | 1160 | const u8 *end; |
c4fd6d8a JM |
1161 | struct ieee802_11_elems elems; |
1162 | int res; | |
1163 | struct wpa_ie_data rsn; | |
1164 | struct rsn_pmksa_cache_entry *pmksa = NULL; | |
1165 | ||
1166 | if (auth_transaction != 1 || status_code != WLAN_STATUS_SUCCESS) | |
1167 | return; | |
1168 | ||
b8a3453a | 1169 | end = pos + len; |
c4fd6d8a JM |
1170 | |
1171 | wpa_hexdump(MSG_DEBUG, "FILS: Authentication frame fields", | |
1172 | pos, end - pos); | |
1173 | ||
1764559e JM |
1174 | /* TODO: FILS PK */ |
1175 | #ifdef CONFIG_FILS_SK_PFS | |
1176 | if (auth_alg == WLAN_AUTH_FILS_SK_PFS) { | |
1177 | u16 group; | |
1178 | struct wpabuf *pub; | |
1179 | size_t elem_len; | |
1180 | ||
1181 | /* Using FILS PFS */ | |
1182 | ||
1183 | /* Finite Cyclic Group */ | |
1184 | if (end - pos < 2) { | |
1185 | wpa_printf(MSG_DEBUG, | |
1186 | "FILS: No room for Finite Cyclic Group"); | |
1187 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1188 | goto fail; | |
1189 | } | |
1190 | group = WPA_GET_LE16(pos); | |
1191 | pos += 2; | |
1192 | if (group != hapd->conf->fils_dh_group) { | |
1193 | wpa_printf(MSG_DEBUG, | |
1194 | "FILS: Unsupported Finite Cyclic Group: %u (expected %u)", | |
1195 | group, hapd->conf->fils_dh_group); | |
1196 | resp = WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
1197 | goto fail; | |
1198 | } | |
1199 | ||
1200 | crypto_ecdh_deinit(sta->fils_ecdh); | |
1201 | sta->fils_ecdh = crypto_ecdh_init(group); | |
1202 | if (!sta->fils_ecdh) { | |
1203 | wpa_printf(MSG_INFO, | |
1204 | "FILS: Could not initialize ECDH with group %d", | |
1205 | group); | |
1206 | resp = WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
1207 | goto fail; | |
1208 | } | |
1209 | ||
1210 | pub = crypto_ecdh_get_pubkey(sta->fils_ecdh, 1); | |
1211 | if (!pub) { | |
1212 | wpa_printf(MSG_DEBUG, | |
1213 | "FILS: Failed to derive ECDH public key"); | |
1214 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1215 | goto fail; | |
1216 | } | |
1217 | elem_len = wpabuf_len(pub); | |
1218 | wpabuf_free(pub); | |
1219 | ||
1220 | /* Element */ | |
1221 | if ((size_t) (end - pos) < elem_len) { | |
1222 | wpa_printf(MSG_DEBUG, "FILS: No room for Element"); | |
1223 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1224 | goto fail; | |
1225 | } | |
1226 | ||
80ddf5d9 JM |
1227 | wpabuf_free(sta->fils_g_sta); |
1228 | sta->fils_g_sta = wpabuf_alloc_copy(pos, elem_len); | |
1764559e JM |
1229 | wpabuf_clear_free(sta->fils_dh_ss); |
1230 | sta->fils_dh_ss = crypto_ecdh_set_peerkey(sta->fils_ecdh, 1, | |
1231 | pos, elem_len); | |
1232 | if (!sta->fils_dh_ss) { | |
1233 | wpa_printf(MSG_DEBUG, "FILS: ECDH operation failed"); | |
1234 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1235 | goto fail; | |
1236 | } | |
1237 | wpa_hexdump_buf_key(MSG_DEBUG, "FILS: DH_SS", sta->fils_dh_ss); | |
1238 | pos += elem_len; | |
1239 | } else { | |
1240 | crypto_ecdh_deinit(sta->fils_ecdh); | |
1241 | sta->fils_ecdh = NULL; | |
1242 | wpabuf_clear_free(sta->fils_dh_ss); | |
1243 | sta->fils_dh_ss = NULL; | |
1244 | } | |
1245 | #endif /* CONFIG_FILS_SK_PFS */ | |
c4fd6d8a JM |
1246 | |
1247 | wpa_hexdump(MSG_DEBUG, "FILS: Remaining IEs", pos, end - pos); | |
1248 | if (ieee802_11_parse_elems(pos, end - pos, &elems, 1) == ParseFailed) { | |
1249 | wpa_printf(MSG_DEBUG, "FILS: Could not parse elements"); | |
1250 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1251 | goto fail; | |
1252 | } | |
1253 | ||
1254 | /* RSNE */ | |
1255 | wpa_hexdump(MSG_DEBUG, "FILS: RSN element", | |
1256 | elems.rsn_ie, elems.rsn_ie_len); | |
1257 | if (!elems.rsn_ie || | |
1258 | wpa_parse_wpa_ie_rsn(elems.rsn_ie - 2, elems.rsn_ie_len + 2, | |
1259 | &rsn) < 0) { | |
1260 | wpa_printf(MSG_DEBUG, "FILS: No valid RSN element"); | |
1261 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1262 | goto fail; | |
1263 | } | |
1264 | ||
1265 | if (!sta->wpa_sm) | |
1266 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, | |
1267 | NULL); | |
1268 | if (!sta->wpa_sm) { | |
1269 | wpa_printf(MSG_DEBUG, | |
1270 | "FILS: Failed to initialize RSN state machine"); | |
1271 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1272 | goto fail; | |
1273 | } | |
1274 | ||
1275 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
1276 | elems.rsn_ie - 2, elems.rsn_ie_len + 2, | |
09368515 | 1277 | elems.mdie, elems.mdie_len, NULL, 0); |
c4fd6d8a JM |
1278 | resp = wpa_res_to_status_code(res); |
1279 | if (resp != WLAN_STATUS_SUCCESS) | |
1280 | goto fail; | |
1281 | ||
c4fd6d8a JM |
1282 | if (!elems.fils_nonce) { |
1283 | wpa_printf(MSG_DEBUG, "FILS: No FILS Nonce field"); | |
1284 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1285 | goto fail; | |
1286 | } | |
1287 | wpa_hexdump(MSG_DEBUG, "FILS: SNonce", elems.fils_nonce, | |
1288 | FILS_NONCE_LEN); | |
1289 | os_memcpy(sta->fils_snonce, elems.fils_nonce, FILS_NONCE_LEN); | |
1290 | ||
1291 | /* PMKID List */ | |
1292 | if (rsn.pmkid && rsn.num_pmkid > 0) { | |
1293 | u8 num; | |
1294 | const u8 *pmkid; | |
1295 | ||
1296 | wpa_hexdump(MSG_DEBUG, "FILS: PMKID List", | |
1297 | rsn.pmkid, rsn.num_pmkid * PMKID_LEN); | |
1298 | ||
1299 | pmkid = rsn.pmkid; | |
1300 | num = rsn.num_pmkid; | |
1301 | while (num) { | |
1302 | wpa_hexdump(MSG_DEBUG, "FILS: PMKID", pmkid, PMKID_LEN); | |
1303 | pmksa = wpa_auth_pmksa_get(hapd->wpa_auth, sta->addr, | |
1304 | pmkid); | |
1305 | if (pmksa) | |
1306 | break; | |
7eace378 JM |
1307 | pmksa = wpa_auth_pmksa_get_fils_cache_id(hapd->wpa_auth, |
1308 | sta->addr, | |
1309 | pmkid); | |
1310 | if (pmksa) | |
1311 | break; | |
c4fd6d8a JM |
1312 | pmkid += PMKID_LEN; |
1313 | num--; | |
1314 | } | |
1315 | } | |
1316 | if (pmksa && wpa_auth_sta_key_mgmt(sta->wpa_sm) != pmksa->akmp) { | |
1317 | wpa_printf(MSG_DEBUG, | |
1318 | "FILS: Matching PMKSA cache entry has different AKMP (0x%x != 0x%x) - ignore", | |
1319 | wpa_auth_sta_key_mgmt(sta->wpa_sm), pmksa->akmp); | |
1320 | pmksa = NULL; | |
1321 | } | |
1322 | if (pmksa) | |
1323 | wpa_printf(MSG_DEBUG, "FILS: Found matching PMKSA cache entry"); | |
1324 | ||
1325 | /* FILS Session */ | |
1326 | if (!elems.fils_session) { | |
1327 | wpa_printf(MSG_DEBUG, "FILS: No FILS Session element"); | |
1328 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1329 | goto fail; | |
1330 | } | |
1331 | wpa_hexdump(MSG_DEBUG, "FILS: FILS Session", elems.fils_session, | |
1332 | FILS_SESSION_LEN); | |
1333 | os_memcpy(sta->fils_session, elems.fils_session, FILS_SESSION_LEN); | |
1334 | ||
1335 | /* FILS Wrapped Data */ | |
1336 | if (elems.fils_wrapped_data) { | |
1337 | wpa_hexdump(MSG_DEBUG, "FILS: Wrapped Data", | |
1338 | elems.fils_wrapped_data, | |
1339 | elems.fils_wrapped_data_len); | |
1340 | if (!pmksa) { | |
1341 | #ifndef CONFIG_NO_RADIUS | |
1342 | if (!sta->eapol_sm) { | |
1343 | sta->eapol_sm = | |
1344 | ieee802_1x_alloc_eapol_sm(hapd, sta); | |
1345 | } | |
1346 | wpa_printf(MSG_DEBUG, | |
bfe44833 | 1347 | "FILS: Forward EAP-Initiate/Re-auth to authentication server"); |
c4fd6d8a JM |
1348 | ieee802_1x_encapsulate_radius( |
1349 | hapd, sta, elems.fils_wrapped_data, | |
1350 | elems.fils_wrapped_data_len); | |
5cee22ca | 1351 | sta->fils_pending_cb = cb; |
c4fd6d8a JM |
1352 | wpa_printf(MSG_DEBUG, |
1353 | "FILS: Will send Authentication frame once the response from authentication server is available"); | |
1354 | sta->flags |= WLAN_STA_PENDING_FILS_ERP; | |
b3e567c8 JM |
1355 | /* Calculate pending PMKID here so that we do not need |
1356 | * to maintain a copy of the EAP-Initiate/Reauth | |
1357 | * message. */ | |
1358 | if (fils_pmkid_erp(wpa_auth_sta_key_mgmt(sta->wpa_sm), | |
1359 | elems.fils_wrapped_data, | |
1360 | elems.fils_wrapped_data_len, | |
1361 | sta->fils_erp_pmkid) == 0) | |
1362 | sta->fils_erp_pmkid_set = 1; | |
c4fd6d8a JM |
1363 | return; |
1364 | #else /* CONFIG_NO_RADIUS */ | |
1365 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1366 | goto fail; | |
1367 | #endif /* CONFIG_NO_RADIUS */ | |
1368 | } | |
1369 | } | |
1370 | ||
1371 | fail: | |
5cee22ca JM |
1372 | if (cb) { |
1373 | struct wpabuf *data; | |
1374 | int pub = 0; | |
1375 | ||
1376 | data = prepare_auth_resp_fils(hapd, sta, &resp, pmksa, NULL, | |
1377 | NULL, 0, &pub); | |
1378 | if (!data) { | |
1379 | wpa_printf(MSG_DEBUG, | |
1380 | "%s: prepare_auth_resp_fils() returned failure", | |
1381 | __func__); | |
1382 | } | |
1383 | ||
1384 | cb(hapd, sta, resp, data, pub); | |
1385 | } | |
c4fd6d8a JM |
1386 | } |
1387 | ||
1388 | ||
5e5f8c81 JM |
1389 | static struct wpabuf * |
1390 | prepare_auth_resp_fils(struct hostapd_data *hapd, | |
1391 | struct sta_info *sta, u16 *resp, | |
1392 | struct rsn_pmksa_cache_entry *pmksa, | |
1393 | struct wpabuf *erp_resp, | |
1394 | const u8 *msk, size_t msk_len, | |
1395 | int *is_pub) | |
c4fd6d8a JM |
1396 | { |
1397 | u8 fils_nonce[FILS_NONCE_LEN]; | |
1398 | size_t ielen; | |
1399 | struct wpabuf *data = NULL; | |
1400 | const u8 *ie; | |
1401 | u8 *ie_buf = NULL; | |
1402 | const u8 *pmk = NULL; | |
1403 | size_t pmk_len = 0; | |
fcd3d6ce | 1404 | u8 pmk_buf[PMK_LEN_MAX]; |
1764559e | 1405 | struct wpabuf *pub = NULL; |
c4fd6d8a | 1406 | |
5e5f8c81 | 1407 | if (*resp != WLAN_STATUS_SUCCESS) |
c4fd6d8a JM |
1408 | goto fail; |
1409 | ||
1410 | ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &ielen); | |
1411 | if (!ie) { | |
5e5f8c81 | 1412 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1413 | goto fail; |
1414 | } | |
5e5f8c81 | 1415 | |
c4fd6d8a JM |
1416 | if (pmksa) { |
1417 | /* Add PMKID of the selected PMKSA into RSNE */ | |
1418 | ie_buf = os_malloc(ielen + 2 + 2 + PMKID_LEN); | |
1419 | if (!ie_buf) { | |
5e5f8c81 | 1420 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1421 | goto fail; |
1422 | } | |
5e5f8c81 | 1423 | |
c4fd6d8a JM |
1424 | os_memcpy(ie_buf, ie, ielen); |
1425 | if (wpa_insert_pmkid(ie_buf, &ielen, pmksa->pmkid) < 0) { | |
5e5f8c81 | 1426 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1427 | goto fail; |
1428 | } | |
1429 | ie = ie_buf; | |
1430 | } | |
1431 | ||
1432 | if (random_get_bytes(fils_nonce, FILS_NONCE_LEN) < 0) { | |
5e5f8c81 | 1433 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1434 | goto fail; |
1435 | } | |
1436 | wpa_hexdump(MSG_DEBUG, "RSN: Generated FILS Nonce", | |
1437 | fils_nonce, FILS_NONCE_LEN); | |
1438 | ||
1764559e JM |
1439 | #ifdef CONFIG_FILS_SK_PFS |
1440 | if (sta->fils_dh_ss && sta->fils_ecdh) { | |
1441 | pub = crypto_ecdh_get_pubkey(sta->fils_ecdh, 1); | |
1442 | if (!pub) { | |
5e5f8c81 | 1443 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1764559e JM |
1444 | goto fail; |
1445 | } | |
1446 | } | |
1447 | #endif /* CONFIG_FILS_SK_PFS */ | |
1448 | ||
1449 | data = wpabuf_alloc(1000 + ielen + (pub ? wpabuf_len(pub) : 0)); | |
c4fd6d8a | 1450 | if (!data) { |
5e5f8c81 | 1451 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1452 | goto fail; |
1453 | } | |
1454 | ||
1764559e JM |
1455 | /* TODO: FILS PK */ |
1456 | #ifdef CONFIG_FILS_SK_PFS | |
1457 | if (pub) { | |
1458 | /* Finite Cyclic Group */ | |
1459 | wpabuf_put_le16(data, hapd->conf->fils_dh_group); | |
1460 | ||
1461 | /* Element */ | |
1462 | wpabuf_put_buf(data, pub); | |
1463 | } | |
1464 | #endif /* CONFIG_FILS_SK_PFS */ | |
c4fd6d8a JM |
1465 | |
1466 | /* RSNE */ | |
1467 | wpabuf_put_data(data, ie, ielen); | |
1468 | ||
5db997e3 JM |
1469 | /* MDE when using FILS+FT (already included in ie,ielen with RSNE) */ |
1470 | ||
1471 | #ifdef CONFIG_IEEE80211R_AP | |
1472 | if (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm))) { | |
1473 | /* FTE[R1KH-ID,R0KH-ID] when using FILS+FT */ | |
1474 | int res; | |
a7968ea5 JM |
1475 | int use_sha384 = wpa_key_mgmt_sha384( |
1476 | wpa_auth_sta_key_mgmt(sta->wpa_sm)); | |
5db997e3 | 1477 | |
a7968ea5 JM |
1478 | res = wpa_auth_write_fte(hapd->wpa_auth, use_sha384, |
1479 | wpabuf_put(data, 0), | |
5db997e3 JM |
1480 | wpabuf_tailroom(data)); |
1481 | if (res < 0) { | |
5e5f8c81 | 1482 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
5db997e3 JM |
1483 | goto fail; |
1484 | } | |
1485 | wpabuf_put(data, res); | |
1486 | } | |
1487 | #endif /* CONFIG_IEEE80211R_AP */ | |
c4fd6d8a JM |
1488 | |
1489 | /* FILS Nonce */ | |
1490 | wpabuf_put_u8(data, WLAN_EID_EXTENSION); /* Element ID */ | |
1491 | wpabuf_put_u8(data, 1 + FILS_NONCE_LEN); /* Length */ | |
1492 | /* Element ID Extension */ | |
1493 | wpabuf_put_u8(data, WLAN_EID_EXT_FILS_NONCE); | |
1494 | wpabuf_put_data(data, fils_nonce, FILS_NONCE_LEN); | |
1495 | ||
1496 | /* FILS Session */ | |
1497 | wpabuf_put_u8(data, WLAN_EID_EXTENSION); /* Element ID */ | |
1498 | wpabuf_put_u8(data, 1 + FILS_SESSION_LEN); /* Length */ | |
1499 | /* Element ID Extension */ | |
1500 | wpabuf_put_u8(data, WLAN_EID_EXT_FILS_SESSION); | |
1501 | wpabuf_put_data(data, sta->fils_session, FILS_SESSION_LEN); | |
1502 | ||
1503 | /* FILS Wrapped Data */ | |
1504 | if (!pmksa && erp_resp) { | |
1505 | wpabuf_put_u8(data, WLAN_EID_EXTENSION); /* Element ID */ | |
1506 | wpabuf_put_u8(data, 1 + wpabuf_len(erp_resp)); /* Length */ | |
1507 | /* Element ID Extension */ | |
1508 | wpabuf_put_u8(data, WLAN_EID_EXT_FILS_WRAPPED_DATA); | |
1509 | wpabuf_put_buf(data, erp_resp); | |
1510 | ||
fcd3d6ce JM |
1511 | if (fils_rmsk_to_pmk(wpa_auth_sta_key_mgmt(sta->wpa_sm), |
1512 | msk, msk_len, sta->fils_snonce, fils_nonce, | |
1764559e JM |
1513 | sta->fils_dh_ss ? |
1514 | wpabuf_head(sta->fils_dh_ss) : NULL, | |
1515 | sta->fils_dh_ss ? | |
1516 | wpabuf_len(sta->fils_dh_ss) : 0, | |
1517 | pmk_buf, &pmk_len)) { | |
fcd3d6ce | 1518 | wpa_printf(MSG_DEBUG, "FILS: Failed to derive PMK"); |
5e5f8c81 | 1519 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
fcd3d6ce JM |
1520 | wpabuf_free(data); |
1521 | data = NULL; | |
1522 | goto fail; | |
1523 | } | |
1524 | pmk = pmk_buf; | |
b3e567c8 | 1525 | |
4cada9dc JM |
1526 | /* Don't use DHss in PTK derivation if PMKSA caching is not |
1527 | * used. */ | |
1528 | wpabuf_clear_free(sta->fils_dh_ss); | |
1529 | sta->fils_dh_ss = NULL; | |
1530 | ||
b3e567c8 JM |
1531 | if (sta->fils_erp_pmkid_set) { |
1532 | /* TODO: get PMKLifetime from WPA parameters */ | |
1533 | unsigned int dot11RSNAConfigPMKLifetime = 43200; | |
13f118dc MB |
1534 | int session_timeout; |
1535 | ||
1536 | session_timeout = dot11RSNAConfigPMKLifetime; | |
1537 | if (sta->session_timeout_set) { | |
1538 | struct os_reltime now, diff; | |
1539 | ||
1540 | os_get_reltime(&now); | |
1541 | os_reltime_sub(&sta->session_timeout, &now, | |
1542 | &diff); | |
1543 | session_timeout = diff.sec; | |
1544 | } | |
b3e567c8 JM |
1545 | |
1546 | sta->fils_erp_pmkid_set = 0; | |
1547 | if (wpa_auth_pmksa_add2( | |
1548 | hapd->wpa_auth, sta->addr, | |
1549 | pmk, pmk_len, | |
1550 | sta->fils_erp_pmkid, | |
13f118dc | 1551 | session_timeout, |
b3e567c8 JM |
1552 | wpa_auth_sta_key_mgmt(sta->wpa_sm)) < 0) { |
1553 | wpa_printf(MSG_ERROR, | |
1554 | "FILS: Failed to add PMKSA cache entry based on ERP"); | |
1555 | } | |
1556 | } | |
c4fd6d8a JM |
1557 | } else if (pmksa) { |
1558 | pmk = pmksa->pmk; | |
1559 | pmk_len = pmksa->pmk_len; | |
1560 | } | |
1561 | ||
1562 | if (!pmk) { | |
1563 | wpa_printf(MSG_DEBUG, "FILS: No PMK available"); | |
5e5f8c81 | 1564 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1565 | wpabuf_free(data); |
1566 | data = NULL; | |
1567 | goto fail; | |
1568 | } | |
1569 | ||
1570 | if (fils_auth_pmk_to_ptk(sta->wpa_sm, pmk, pmk_len, | |
80ddf5d9 | 1571 | sta->fils_snonce, fils_nonce, |
4cada9dc JM |
1572 | sta->fils_dh_ss ? |
1573 | wpabuf_head(sta->fils_dh_ss) : NULL, | |
1574 | sta->fils_dh_ss ? | |
1575 | wpabuf_len(sta->fils_dh_ss) : 0, | |
80ddf5d9 | 1576 | sta->fils_g_sta, pub) < 0) { |
5e5f8c81 | 1577 | *resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
c4fd6d8a JM |
1578 | wpabuf_free(data); |
1579 | data = NULL; | |
1580 | goto fail; | |
1581 | } | |
1582 | ||
1583 | fail: | |
5e5f8c81 JM |
1584 | if (is_pub) |
1585 | *is_pub = pub != NULL; | |
1586 | os_free(ie_buf); | |
1587 | wpabuf_free(pub); | |
1588 | wpabuf_clear_free(sta->fils_dh_ss); | |
1589 | sta->fils_dh_ss = NULL; | |
1590 | #ifdef CONFIG_FILS_SK_PFS | |
1591 | crypto_ecdh_deinit(sta->fils_ecdh); | |
1592 | sta->fils_ecdh = NULL; | |
1593 | #endif /* CONFIG_FILS_SK_PFS */ | |
1594 | return data; | |
1595 | } | |
1596 | ||
1597 | ||
1598 | static void handle_auth_fils_finish(struct hostapd_data *hapd, | |
1599 | struct sta_info *sta, u16 resp, | |
5cee22ca | 1600 | struct wpabuf *data, int pub) |
5e5f8c81 | 1601 | { |
5e5f8c81 | 1602 | u16 auth_alg; |
5e5f8c81 | 1603 | |
1764559e JM |
1604 | auth_alg = (pub || |
1605 | resp == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED) ? | |
1606 | WLAN_AUTH_FILS_SK_PFS : WLAN_AUTH_FILS_SK; | |
1607 | send_auth_reply(hapd, sta->addr, hapd->own_addr, auth_alg, 2, resp, | |
c4fd6d8a | 1608 | data ? wpabuf_head(data) : (u8 *) "", |
e7525a29 | 1609 | data ? wpabuf_len(data) : 0, "auth-fils-finish"); |
c4fd6d8a JM |
1610 | wpabuf_free(data); |
1611 | ||
1612 | if (resp == WLAN_STATUS_SUCCESS) { | |
1613 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
1614 | HOSTAPD_LEVEL_DEBUG, | |
1615 | "authentication OK (FILS)"); | |
1616 | sta->flags |= WLAN_STA_AUTH; | |
1617 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
1764559e | 1618 | sta->auth_alg = pub ? WLAN_AUTH_FILS_SK_PFS : WLAN_AUTH_FILS_SK; |
c4fd6d8a JM |
1619 | mlme_authenticate_indication(hapd, sta); |
1620 | } | |
c4fd6d8a JM |
1621 | } |
1622 | ||
1623 | ||
1624 | void ieee802_11_finish_fils_auth(struct hostapd_data *hapd, | |
1625 | struct sta_info *sta, int success, | |
1626 | struct wpabuf *erp_resp, | |
1627 | const u8 *msk, size_t msk_len) | |
1628 | { | |
5cee22ca JM |
1629 | struct wpabuf *data; |
1630 | int pub = 0; | |
1631 | u16 resp; | |
1632 | ||
c4fd6d8a | 1633 | sta->flags &= ~WLAN_STA_PENDING_FILS_ERP; |
5cee22ca JM |
1634 | |
1635 | if (!sta->fils_pending_cb) | |
1636 | return; | |
1637 | resp = success ? WLAN_STATUS_SUCCESS : WLAN_STATUS_UNSPECIFIED_FAILURE; | |
1638 | data = prepare_auth_resp_fils(hapd, sta, &resp, NULL, erp_resp, | |
1639 | msk, msk_len, &pub); | |
1640 | if (!data) { | |
1641 | wpa_printf(MSG_DEBUG, | |
1642 | "%s: prepare_auth_resp_fils() returned failure", | |
1643 | __func__); | |
1644 | } | |
1645 | sta->fils_pending_cb(hapd, sta, resp, data, pub); | |
c4fd6d8a JM |
1646 | } |
1647 | ||
1648 | #endif /* CONFIG_FILS */ | |
1649 | ||
1650 | ||
92eb00ae | 1651 | int |
53d17144 DL |
1652 | ieee802_11_allowed_address(struct hostapd_data *hapd, const u8 *addr, |
1653 | const u8 *msg, size_t len, u32 *session_timeout, | |
1654 | u32 *acct_interim_interval, | |
1655 | struct vlan_description *vlan_id, | |
1656 | struct hostapd_sta_wpa_psk_short **psk, | |
92eb00ae | 1657 | char **identity, char **radius_cui, int is_probe_req) |
53d17144 DL |
1658 | { |
1659 | int res; | |
1660 | ||
1661 | os_memset(vlan_id, 0, sizeof(*vlan_id)); | |
1662 | res = hostapd_allowed_address(hapd, addr, msg, len, | |
1663 | session_timeout, acct_interim_interval, | |
92eb00ae T |
1664 | vlan_id, psk, identity, radius_cui, |
1665 | is_probe_req); | |
53d17144 DL |
1666 | |
1667 | if (res == HOSTAPD_ACL_REJECT) { | |
6588f712 JM |
1668 | if (!is_probe_req) |
1669 | wpa_printf(MSG_DEBUG, | |
1670 | "Station " MACSTR | |
1671 | " not allowed to authenticate", | |
1672 | MAC2STR(addr)); | |
53d17144 DL |
1673 | return HOSTAPD_ACL_REJECT; |
1674 | } | |
1675 | ||
1676 | if (res == HOSTAPD_ACL_PENDING) { | |
1677 | wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR | |
1678 | " waiting for an external authentication", | |
1679 | MAC2STR(addr)); | |
1680 | /* Authentication code will re-send the authentication frame | |
1681 | * after it has received (and cached) information from the | |
1682 | * external source. */ | |
1683 | return HOSTAPD_ACL_PENDING; | |
1684 | } | |
1685 | ||
1686 | return res; | |
1687 | } | |
1688 | ||
1689 | ||
1690 | static int | |
1691 | ieee802_11_set_radius_info(struct hostapd_data *hapd, struct sta_info *sta, | |
1692 | int res, u32 session_timeout, | |
1693 | u32 acct_interim_interval, | |
1694 | struct vlan_description *vlan_id, | |
1695 | struct hostapd_sta_wpa_psk_short **psk, | |
1696 | char **identity, char **radius_cui) | |
1697 | { | |
1698 | if (vlan_id->notempty && | |
1699 | !hostapd_vlan_valid(hapd->conf->vlan, vlan_id)) { | |
1700 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
1701 | HOSTAPD_LEVEL_INFO, | |
1702 | "Invalid VLAN %d%s received from RADIUS server", | |
1703 | vlan_id->untagged, | |
1704 | vlan_id->tagged[0] ? "+" : ""); | |
1705 | return -1; | |
1706 | } | |
1707 | if (ap_sta_set_vlan(hapd, sta, vlan_id) < 0) | |
1708 | return -1; | |
1709 | if (sta->vlan_id) | |
1710 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, | |
1711 | HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id); | |
1712 | ||
1713 | hostapd_free_psk_list(sta->psk); | |
1714 | if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) { | |
1715 | sta->psk = *psk; | |
1716 | *psk = NULL; | |
1717 | } else { | |
1718 | sta->psk = NULL; | |
1719 | } | |
1720 | ||
17a8a989 | 1721 | os_free(sta->identity); |
53d17144 DL |
1722 | sta->identity = *identity; |
1723 | *identity = NULL; | |
17a8a989 MB |
1724 | |
1725 | os_free(sta->radius_cui); | |
53d17144 DL |
1726 | sta->radius_cui = *radius_cui; |
1727 | *radius_cui = NULL; | |
1728 | ||
1729 | if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval) | |
1730 | sta->acct_interim_interval = acct_interim_interval; | |
13f118dc MB |
1731 | if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT) { |
1732 | sta->session_timeout_set = 1; | |
1733 | os_get_reltime(&sta->session_timeout); | |
1734 | sta->session_timeout.sec += session_timeout; | |
53d17144 | 1735 | ap_sta_session_timeout(hapd, sta, session_timeout); |
13f118dc MB |
1736 | } else { |
1737 | sta->session_timeout_set = 0; | |
53d17144 | 1738 | ap_sta_no_session_timeout(hapd, sta); |
13f118dc | 1739 | } |
53d17144 DL |
1740 | |
1741 | return 0; | |
1742 | } | |
1743 | ||
1744 | ||
b57e086c JM |
1745 | static void handle_auth(struct hostapd_data *hapd, |
1746 | const struct ieee80211_mgmt *mgmt, size_t len) | |
6fc6879b JM |
1747 | { |
1748 | u16 auth_alg, auth_transaction, status_code; | |
1749 | u16 resp = WLAN_STATUS_SUCCESS; | |
1750 | struct sta_info *sta = NULL; | |
bb598c3b | 1751 | int res, reply_res; |
6fc6879b | 1752 | u16 fc; |
b57e086c | 1753 | const u8 *challenge = NULL; |
6fc6879b | 1754 | u32 session_timeout, acct_interim_interval; |
1889af2e | 1755 | struct vlan_description vlan_id; |
2ad3e6c8 | 1756 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
6fc6879b JM |
1757 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; |
1758 | size_t resp_ies_len = 0; | |
2092597f MB |
1759 | char *identity = NULL; |
1760 | char *radius_cui = NULL; | |
38cb0a2d | 1761 | u16 seq_ctrl; |
6fc6879b JM |
1762 | |
1763 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
1764 | wpa_printf(MSG_INFO, "handle_auth - too short payload (len=%lu)", |
1765 | (unsigned long) len); | |
6fc6879b JM |
1766 | return; |
1767 | } | |
1768 | ||
c2aff6b1 | 1769 | #ifdef CONFIG_TESTING_OPTIONS |
06df2aa6 | 1770 | if (hapd->iconf->ignore_auth_probability > 0.0 && |
c2aff6b1 JB |
1771 | drand48() < hapd->iconf->ignore_auth_probability) { |
1772 | wpa_printf(MSG_INFO, | |
1773 | "TESTING: ignoring auth frame from " MACSTR, | |
1774 | MAC2STR(mgmt->sa)); | |
1775 | return; | |
1776 | } | |
1777 | #endif /* CONFIG_TESTING_OPTIONS */ | |
1778 | ||
6fc6879b JM |
1779 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); |
1780 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
1781 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
1782 | fc = le_to_host16(mgmt->frame_control); | |
38cb0a2d | 1783 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); |
6fc6879b JM |
1784 | |
1785 | if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) + | |
1786 | 2 + WLAN_AUTH_CHALLENGE_LEN && | |
1787 | mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE && | |
1788 | mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN) | |
1789 | challenge = &mgmt->u.auth.variable[2]; | |
1790 | ||
1791 | wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d " | |
38cb0a2d IP |
1792 | "auth_transaction=%d status_code=%d wep=%d%s " |
1793 | "seq_ctrl=0x%x%s", | |
6fc6879b JM |
1794 | MAC2STR(mgmt->sa), auth_alg, auth_transaction, |
1795 | status_code, !!(fc & WLAN_FC_ISWEP), | |
38cb0a2d IP |
1796 | challenge ? " challenge" : "", |
1797 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
6fc6879b | 1798 | |
7cb53ded JM |
1799 | #ifdef CONFIG_NO_RC4 |
1800 | if (auth_alg == WLAN_AUTH_SHARED_KEY) { | |
1801 | wpa_printf(MSG_INFO, | |
1802 | "Unsupported authentication algorithm (%d)", | |
1803 | auth_alg); | |
1804 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
1805 | goto fail; | |
1806 | } | |
1807 | #endif /* CONFIG_NO_RC4 */ | |
1808 | ||
6fc6879b | 1809 | if (hapd->tkip_countermeasures) { |
e2fc13d0 BG |
1810 | wpa_printf(MSG_DEBUG, |
1811 | "Ongoing TKIP countermeasures (Michael MIC failure) - reject authentication"); | |
fe12ae77 | 1812 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
1813 | goto fail; |
1814 | } | |
1815 | ||
1816 | if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) && | |
1817 | auth_alg == WLAN_AUTH_OPEN) || | |
4ec1fd8e | 1818 | #ifdef CONFIG_IEEE80211R_AP |
0bf927a0 | 1819 | (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && |
6fc6879b | 1820 | auth_alg == WLAN_AUTH_FT) || |
4ec1fd8e | 1821 | #endif /* CONFIG_IEEE80211R_AP */ |
c10347f2 JM |
1822 | #ifdef CONFIG_SAE |
1823 | (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && | |
1824 | auth_alg == WLAN_AUTH_SAE) || | |
1825 | #endif /* CONFIG_SAE */ | |
c4fd6d8a JM |
1826 | #ifdef CONFIG_FILS |
1827 | (hapd->conf->wpa && wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt) && | |
1828 | auth_alg == WLAN_AUTH_FILS_SK) || | |
1764559e JM |
1829 | (hapd->conf->wpa && wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt) && |
1830 | hapd->conf->fils_dh_group && | |
1831 | auth_alg == WLAN_AUTH_FILS_SK_PFS) || | |
c4fd6d8a | 1832 | #endif /* CONFIG_FILS */ |
6fc6879b JM |
1833 | ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) && |
1834 | auth_alg == WLAN_AUTH_SHARED_KEY))) { | |
61323e70 JM |
1835 | wpa_printf(MSG_INFO, "Unsupported authentication algorithm (%d)", |
1836 | auth_alg); | |
6fc6879b JM |
1837 | resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; |
1838 | goto fail; | |
1839 | } | |
1840 | ||
c10347f2 | 1841 | if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE || |
6fc6879b | 1842 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) { |
61323e70 JM |
1843 | wpa_printf(MSG_INFO, "Unknown authentication transaction number (%d)", |
1844 | auth_transaction); | |
6fc6879b JM |
1845 | resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
1846 | goto fail; | |
1847 | } | |
1848 | ||
1849 | if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { | |
61323e70 JM |
1850 | wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate", |
1851 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
1852 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1853 | goto fail; | |
1854 | } | |
1855 | ||
0e2412d0 JM |
1856 | if (hapd->conf->no_auth_if_seen_on) { |
1857 | struct hostapd_data *other; | |
1858 | ||
1859 | other = sta_track_seen_on(hapd->iface, mgmt->sa, | |
1860 | hapd->conf->no_auth_if_seen_on); | |
1861 | if (other) { | |
1862 | u8 *pos; | |
1863 | u32 info; | |
1864 | u8 op_class, channel, phytype; | |
1865 | ||
1866 | wpa_printf(MSG_DEBUG, "%s: Reject authentication from " | |
1867 | MACSTR " since STA has been seen on %s", | |
1868 | hapd->conf->iface, MAC2STR(mgmt->sa), | |
1869 | hapd->conf->no_auth_if_seen_on); | |
1870 | ||
1871 | resp = WLAN_STATUS_REJECTED_WITH_SUGGESTED_BSS_TRANSITION; | |
1872 | pos = &resp_ies[0]; | |
1873 | *pos++ = WLAN_EID_NEIGHBOR_REPORT; | |
1874 | *pos++ = 13; | |
1875 | os_memcpy(pos, other->own_addr, ETH_ALEN); | |
1876 | pos += ETH_ALEN; | |
1877 | info = 0; /* TODO: BSSID Information */ | |
1878 | WPA_PUT_LE32(pos, info); | |
1879 | pos += 4; | |
1880 | if (other->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD) | |
1881 | phytype = 8; /* dmg */ | |
1882 | else if (other->iconf->ieee80211ac) | |
1883 | phytype = 9; /* vht */ | |
1884 | else if (other->iconf->ieee80211n) | |
1885 | phytype = 7; /* ht */ | |
1886 | else if (other->iconf->hw_mode == | |
1887 | HOSTAPD_MODE_IEEE80211A) | |
1888 | phytype = 4; /* ofdm */ | |
1889 | else if (other->iconf->hw_mode == | |
1890 | HOSTAPD_MODE_IEEE80211G) | |
1891 | phytype = 6; /* erp */ | |
1892 | else | |
1893 | phytype = 5; /* hrdsss */ | |
1894 | if (ieee80211_freq_to_channel_ext( | |
1895 | hostapd_hw_get_freq(other, | |
1896 | other->iconf->channel), | |
1897 | other->iconf->secondary_channel, | |
1898 | other->iconf->ieee80211ac, | |
1899 | &op_class, &channel) == NUM_HOSTAPD_MODES) { | |
1900 | op_class = 0; | |
1901 | channel = other->iconf->channel; | |
1902 | } | |
1903 | *pos++ = op_class; | |
1904 | *pos++ = channel; | |
1905 | *pos++ = phytype; | |
1906 | resp_ies_len = pos - &resp_ies[0]; | |
1907 | goto fail; | |
1908 | } | |
1909 | } | |
1910 | ||
53d17144 DL |
1911 | res = ieee802_11_allowed_address( |
1912 | hapd, mgmt->sa, (const u8 *) mgmt, len, &session_timeout, | |
92eb00ae T |
1913 | &acct_interim_interval, &vlan_id, &psk, &identity, &radius_cui, |
1914 | 0); | |
6fc6879b | 1915 | if (res == HOSTAPD_ACL_REJECT) { |
92eb00ae T |
1916 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, |
1917 | "Ignore Authentication frame from " MACSTR | |
1918 | " due to ACL reject", MAC2STR(mgmt->sa)); | |
6fc6879b JM |
1919 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1920 | goto fail; | |
1921 | } | |
53d17144 | 1922 | if (res == HOSTAPD_ACL_PENDING) |
6fc6879b | 1923 | return; |
6fc6879b | 1924 | |
38cb0a2d IP |
1925 | sta = ap_get_sta(hapd, mgmt->sa); |
1926 | if (sta) { | |
c4fd6d8a | 1927 | sta->flags &= ~WLAN_STA_PENDING_FILS_ERP; |
38cb0a2d IP |
1928 | if ((fc & WLAN_FC_RETRY) && |
1929 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
1930 | sta->last_seq_ctrl == seq_ctrl && | |
1931 | sta->last_subtype == WLAN_FC_STYPE_AUTH) { | |
1932 | hostapd_logger(hapd, sta->addr, | |
1933 | HOSTAPD_MODULE_IEEE80211, | |
1934 | HOSTAPD_LEVEL_DEBUG, | |
1935 | "Drop repeated authentication frame seq_ctrl=0x%x", | |
1936 | seq_ctrl); | |
1937 | return; | |
1938 | } | |
09d96de0 MH |
1939 | #ifdef CONFIG_MESH |
1940 | if ((hapd->conf->mesh & MESH_ENABLED) && | |
1941 | sta->plink_state == PLINK_BLOCKED) { | |
1942 | wpa_printf(MSG_DEBUG, "Mesh peer " MACSTR | |
1943 | " is blocked - drop Authentication frame", | |
1944 | MAC2STR(mgmt->sa)); | |
1945 | return; | |
1946 | } | |
1947 | #endif /* CONFIG_MESH */ | |
38cb0a2d | 1948 | } else { |
c50d94f1 | 1949 | #ifdef CONFIG_MESH |
38cb0a2d IP |
1950 | if (hapd->conf->mesh & MESH_ENABLED) { |
1951 | /* if the mesh peer is not available, we don't do auth. | |
1952 | */ | |
3a322496 | 1953 | wpa_printf(MSG_DEBUG, "Mesh peer " MACSTR |
09d96de0 | 1954 | " not yet known - drop Authentication frame", |
3a322496 JM |
1955 | MAC2STR(mgmt->sa)); |
1956 | /* | |
1957 | * Save a copy of the frame so that it can be processed | |
1958 | * if a new peer entry is added shortly after this. | |
1959 | */ | |
1960 | wpabuf_free(hapd->mesh_pending_auth); | |
1961 | hapd->mesh_pending_auth = wpabuf_alloc_copy(mgmt, len); | |
1962 | os_get_reltime(&hapd->mesh_pending_auth_time); | |
c50d94f1 | 1963 | return; |
38cb0a2d | 1964 | } |
c50d94f1 | 1965 | #endif /* CONFIG_MESH */ |
38cb0a2d | 1966 | |
c50d94f1 BC |
1967 | sta = ap_sta_add(hapd, mgmt->sa); |
1968 | if (!sta) { | |
c6b5b9a3 | 1969 | wpa_printf(MSG_DEBUG, "ap_sta_add() failed"); |
c50d94f1 BC |
1970 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; |
1971 | goto fail; | |
1972 | } | |
6fc6879b | 1973 | } |
38cb0a2d IP |
1974 | sta->last_seq_ctrl = seq_ctrl; |
1975 | sta->last_subtype = WLAN_FC_STYPE_AUTH; | |
6fc6879b | 1976 | |
53d17144 DL |
1977 | res = ieee802_11_set_radius_info( |
1978 | hapd, sta, res, session_timeout, acct_interim_interval, | |
1979 | &vlan_id, &psk, &identity, &radius_cui); | |
1980 | if (res) { | |
c6b5b9a3 | 1981 | wpa_printf(MSG_DEBUG, "ieee802_11_set_radius_info() failed"); |
8be640b7 MB |
1982 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
1983 | goto fail; | |
6fc6879b | 1984 | } |
2092597f | 1985 | |
6fc6879b JM |
1986 | sta->flags &= ~WLAN_STA_PREAUTH; |
1987 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
1988 | ||
bb598c3b AB |
1989 | /* |
1990 | * If the driver supports full AP client state, add a station to the | |
1991 | * driver before sending authentication reply to make sure the driver | |
1992 | * has resources, and not to go through the entire authentication and | |
1993 | * association handshake, and fail it at the end. | |
1994 | * | |
1995 | * If this is not the first transaction, in a multi-step authentication | |
1996 | * algorithm, the station already exists in the driver | |
1997 | * (sta->added_unassoc = 1) so skip it. | |
1998 | * | |
1999 | * In mesh mode, the station was already added to the driver when the | |
2000 | * NEW_PEER_CANDIDATE event is received. | |
2ab09656 JM |
2001 | * |
2002 | * If PMF was negotiated for the existing association, skip this to | |
2003 | * avoid dropping the STA entry and the associated keys. This is needed | |
2004 | * to allow the original connection work until the attempt can complete | |
2005 | * (re)association, so that unprotected Authentication frame cannot be | |
2006 | * used to bypass PMF protection. | |
bb598c3b AB |
2007 | */ |
2008 | if (FULL_AP_CLIENT_STATE_SUPP(hapd->iface->drv_flags) && | |
2ab09656 | 2009 | (!(sta->flags & WLAN_STA_MFP) || !ap_sta_is_authorized(sta)) && |
bb598c3b AB |
2010 | !(hapd->conf->mesh & MESH_ENABLED) && |
2011 | !(sta->added_unassoc)) { | |
2012 | /* | |
2013 | * If a station that is already associated to the AP, is trying | |
2014 | * to authenticate again, remove the STA entry, in order to make | |
2015 | * sure the STA PS state gets cleared and configuration gets | |
2016 | * updated. To handle this, station's added_unassoc flag is | |
2017 | * cleared once the station has completed association. | |
2018 | */ | |
b5ebe5dd | 2019 | ap_sta_set_authorized(hapd, sta, 0); |
bb598c3b AB |
2020 | hostapd_drv_sta_remove(hapd, sta->addr); |
2021 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_AUTH | | |
2022 | WLAN_STA_AUTHORIZED); | |
2023 | ||
468b7b12 | 2024 | if (hostapd_sta_add(hapd, sta->addr, 0, 0, NULL, 0, 0, |
ae33239c | 2025 | NULL, NULL, sta->flags, 0, 0, 0, 0)) { |
bb598c3b AB |
2026 | hostapd_logger(hapd, sta->addr, |
2027 | HOSTAPD_MODULE_IEEE80211, | |
2028 | HOSTAPD_LEVEL_NOTICE, | |
2029 | "Could not add STA to kernel driver"); | |
2030 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
2031 | goto fail; | |
2032 | } | |
2033 | ||
2034 | sta->added_unassoc = 1; | |
2035 | } | |
2036 | ||
6fc6879b JM |
2037 | switch (auth_alg) { |
2038 | case WLAN_AUTH_OPEN: | |
2039 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2040 | HOSTAPD_LEVEL_DEBUG, | |
2041 | "authentication OK (open system)"); | |
6fc6879b JM |
2042 | sta->flags |= WLAN_STA_AUTH; |
2043 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
2044 | sta->auth_alg = WLAN_AUTH_OPEN; | |
2045 | mlme_authenticate_indication(hapd, sta); | |
6fc6879b | 2046 | break; |
7cb53ded | 2047 | #ifndef CONFIG_NO_RC4 |
6fc6879b JM |
2048 | case WLAN_AUTH_SHARED_KEY: |
2049 | resp = auth_shared_key(hapd, sta, auth_transaction, challenge, | |
2050 | fc & WLAN_FC_ISWEP); | |
c6b5b9a3 BG |
2051 | if (resp != 0) |
2052 | wpa_printf(MSG_DEBUG, | |
2053 | "auth_shared_key() failed: status=%d", resp); | |
6fc6879b JM |
2054 | sta->auth_alg = WLAN_AUTH_SHARED_KEY; |
2055 | mlme_authenticate_indication(hapd, sta); | |
2056 | if (sta->challenge && auth_transaction == 1) { | |
2057 | resp_ies[0] = WLAN_EID_CHALLENGE; | |
2058 | resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN; | |
2059 | os_memcpy(resp_ies + 2, sta->challenge, | |
2060 | WLAN_AUTH_CHALLENGE_LEN); | |
2061 | resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN; | |
2062 | } | |
2063 | break; | |
7cb53ded | 2064 | #endif /* CONFIG_NO_RC4 */ |
4ec1fd8e | 2065 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b JM |
2066 | case WLAN_AUTH_FT: |
2067 | sta->auth_alg = WLAN_AUTH_FT; | |
2068 | if (sta->wpa_sm == NULL) | |
2069 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e | 2070 | sta->addr, NULL); |
6fc6879b JM |
2071 | if (sta->wpa_sm == NULL) { |
2072 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
2073 | "state machine"); | |
2074 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2075 | goto fail; | |
2076 | } | |
2077 | wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid, | |
2078 | auth_transaction, mgmt->u.auth.variable, | |
2079 | len - IEEE80211_HDRLEN - | |
2080 | sizeof(mgmt->u.auth), | |
2081 | handle_auth_ft_finish, hapd); | |
2082 | /* handle_auth_ft_finish() callback will complete auth. */ | |
2083 | return; | |
4ec1fd8e | 2084 | #endif /* CONFIG_IEEE80211R_AP */ |
c10347f2 JM |
2085 | #ifdef CONFIG_SAE |
2086 | case WLAN_AUTH_SAE: | |
c50d94f1 | 2087 | #ifdef CONFIG_MESH |
afa2ffb4 JM |
2088 | if (status_code == WLAN_STATUS_SUCCESS && |
2089 | hapd->conf->mesh & MESH_ENABLED) { | |
c50d94f1 BC |
2090 | if (sta->wpa_sm == NULL) |
2091 | sta->wpa_sm = | |
2092 | wpa_auth_sta_init(hapd->wpa_auth, | |
2093 | sta->addr, NULL); | |
2094 | if (sta->wpa_sm == NULL) { | |
2095 | wpa_printf(MSG_DEBUG, | |
2096 | "SAE: Failed to initialize WPA state machine"); | |
2097 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2098 | goto fail; | |
2099 | } | |
2100 | } | |
2101 | #endif /* CONFIG_MESH */ | |
afa2ffb4 JM |
2102 | handle_auth_sae(hapd, sta, mgmt, len, auth_transaction, |
2103 | status_code); | |
c10347f2 JM |
2104 | return; |
2105 | #endif /* CONFIG_SAE */ | |
c4fd6d8a JM |
2106 | #ifdef CONFIG_FILS |
2107 | case WLAN_AUTH_FILS_SK: | |
1764559e | 2108 | case WLAN_AUTH_FILS_SK_PFS: |
b8a3453a JM |
2109 | handle_auth_fils(hapd, sta, mgmt->u.auth.variable, |
2110 | len - IEEE80211_HDRLEN - sizeof(mgmt->u.auth), | |
5cee22ca JM |
2111 | auth_alg, auth_transaction, status_code, |
2112 | handle_auth_fils_finish); | |
c4fd6d8a JM |
2113 | return; |
2114 | #endif /* CONFIG_FILS */ | |
6fc6879b JM |
2115 | } |
2116 | ||
2117 | fail: | |
2092597f MB |
2118 | os_free(identity); |
2119 | os_free(radius_cui); | |
f2a14be7 | 2120 | hostapd_free_psk_list(psk); |
2092597f | 2121 | |
bb598c3b AB |
2122 | reply_res = send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg, |
2123 | auth_transaction + 1, resp, resp_ies, | |
e7525a29 | 2124 | resp_ies_len, "handle-auth"); |
bb598c3b AB |
2125 | |
2126 | if (sta && sta->added_unassoc && (resp != WLAN_STATUS_SUCCESS || | |
2127 | reply_res != WLAN_STATUS_SUCCESS)) { | |
2128 | hostapd_drv_sta_remove(hapd, sta->addr); | |
2129 | sta->added_unassoc = 0; | |
2130 | } | |
6fc6879b JM |
2131 | } |
2132 | ||
2133 | ||
681753f2 | 2134 | int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta) |
d42a62b3 | 2135 | { |
2991469c JM |
2136 | int i, j = 32, aid; |
2137 | ||
d42a62b3 JM |
2138 | /* get a unique AID */ |
2139 | if (sta->aid > 0) { | |
2140 | wpa_printf(MSG_DEBUG, " old AID %d", sta->aid); | |
2141 | return 0; | |
2142 | } | |
2143 | ||
d7358113 JM |
2144 | if (TEST_FAIL()) |
2145 | return -1; | |
2146 | ||
2991469c JM |
2147 | for (i = 0; i < AID_WORDS; i++) { |
2148 | if (hapd->sta_aid[i] == (u32) -1) | |
2149 | continue; | |
2150 | for (j = 0; j < 32; j++) { | |
2151 | if (!(hapd->sta_aid[i] & BIT(j))) | |
2152 | break; | |
2153 | } | |
2154 | if (j < 32) | |
d42a62b3 | 2155 | break; |
d42a62b3 | 2156 | } |
2991469c JM |
2157 | if (j == 32) |
2158 | return -1; | |
2159 | aid = i * 32 + j + 1; | |
2160 | if (aid > 2007) | |
2161 | return -1; | |
d42a62b3 | 2162 | |
2991469c JM |
2163 | sta->aid = aid; |
2164 | hapd->sta_aid[i] |= BIT(j); | |
d42a62b3 JM |
2165 | wpa_printf(MSG_DEBUG, " new AID %d", sta->aid); |
2166 | return 0; | |
2167 | } | |
2168 | ||
2169 | ||
5586f500 JM |
2170 | static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta, |
2171 | const u8 *ssid_ie, size_t ssid_ie_len) | |
6fc6879b | 2172 | { |
5586f500 JM |
2173 | if (ssid_ie == NULL) |
2174 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b | 2175 | |
5586f500 JM |
2176 | if (ssid_ie_len != hapd->conf->ssid.ssid_len || |
2177 | os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) { | |
5586f500 JM |
2178 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
2179 | HOSTAPD_LEVEL_INFO, | |
2180 | "Station tried to associate with unknown SSID " | |
b37d582e | 2181 | "'%s'", wpa_ssid_txt(ssid_ie, ssid_ie_len)); |
5586f500 | 2182 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
b0194fe0 JM |
2183 | } |
2184 | ||
5586f500 JM |
2185 | return WLAN_STATUS_SUCCESS; |
2186 | } | |
6fc6879b | 2187 | |
6fc6879b | 2188 | |
5586f500 JM |
2189 | static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta, |
2190 | const u8 *wmm_ie, size_t wmm_ie_len) | |
2191 | { | |
3ae0800c | 2192 | sta->flags &= ~WLAN_STA_WMM; |
5d061637 | 2193 | sta->qosinfo = 0; |
5586f500 | 2194 | if (wmm_ie && hapd->conf->wmm_enabled) { |
5f32f79c | 2195 | struct wmm_information_element *wmm; |
5f32f79c | 2196 | |
c84b868a | 2197 | if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) { |
6fc6879b JM |
2198 | hostapd_logger(hapd, sta->addr, |
2199 | HOSTAPD_MODULE_WPA, | |
2200 | HOSTAPD_LEVEL_DEBUG, | |
3ae0800c | 2201 | "invalid WMM element in association " |
6fc6879b | 2202 | "request"); |
5f32f79c EP |
2203 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
2204 | } | |
2205 | ||
2206 | sta->flags |= WLAN_STA_WMM; | |
2207 | wmm = (struct wmm_information_element *) wmm_ie; | |
5d061637 | 2208 | sta->qosinfo = wmm->qos_info; |
6fc6879b | 2209 | } |
5586f500 JM |
2210 | return WLAN_STATUS_SUCCESS; |
2211 | } | |
6fc6879b | 2212 | |
5586f500 JM |
2213 | |
2214 | static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, | |
2215 | struct ieee802_11_elems *elems) | |
2216 | { | |
0c4b9025 DL |
2217 | /* Supported rates not used in IEEE 802.11ad/DMG */ |
2218 | if (hapd->iface->current_mode && | |
2219 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) | |
2220 | return WLAN_STATUS_SUCCESS; | |
2221 | ||
5586f500 JM |
2222 | if (!elems->supp_rates) { |
2223 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
6fc6879b JM |
2224 | HOSTAPD_LEVEL_DEBUG, |
2225 | "No supported rates element in AssocReq"); | |
5586f500 | 2226 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2227 | } |
2228 | ||
3489cfb0 JM |
2229 | if (elems->supp_rates_len + elems->ext_supp_rates_len > |
2230 | sizeof(sta->supported_rates)) { | |
5586f500 | 2231 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
6fc6879b | 2232 | HOSTAPD_LEVEL_DEBUG, |
3489cfb0 JM |
2233 | "Invalid supported rates element length %d+%d", |
2234 | elems->supp_rates_len, | |
2235 | elems->ext_supp_rates_len); | |
5586f500 | 2236 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2237 | } |
2238 | ||
3489cfb0 JM |
2239 | sta->supported_rates_len = merge_byte_arrays( |
2240 | sta->supported_rates, sizeof(sta->supported_rates), | |
2241 | elems->supp_rates, elems->supp_rates_len, | |
2242 | elems->ext_supp_rates, elems->ext_supp_rates_len); | |
6fc6879b | 2243 | |
5586f500 JM |
2244 | return WLAN_STATUS_SUCCESS; |
2245 | } | |
2246 | ||
2247 | ||
c551700f KP |
2248 | static u16 check_ext_capab(struct hostapd_data *hapd, struct sta_info *sta, |
2249 | const u8 *ext_capab_ie, size_t ext_capab_ie_len) | |
2250 | { | |
2251 | #ifdef CONFIG_INTERWORKING | |
2252 | /* check for QoS Map support */ | |
2253 | if (ext_capab_ie_len >= 5) { | |
2254 | if (ext_capab_ie[4] & 0x01) | |
2255 | sta->qos_map_enabled = 1; | |
2256 | } | |
2257 | #endif /* CONFIG_INTERWORKING */ | |
2258 | ||
65f9db6b | 2259 | if (ext_capab_ie_len > 0) { |
98b05081 | 2260 | sta->ecsa_supported = !!(ext_capab_ie[0] & BIT(2)); |
65f9db6b | 2261 | os_free(sta->ext_capability); |
2262 | sta->ext_capability = os_malloc(1 + ext_capab_ie_len); | |
2263 | if (sta->ext_capability) { | |
2264 | sta->ext_capability[0] = ext_capab_ie_len; | |
2265 | os_memcpy(sta->ext_capability + 1, ext_capab_ie, | |
2266 | ext_capab_ie_len); | |
2267 | } | |
2268 | } | |
98b05081 | 2269 | |
c551700f KP |
2270 | return WLAN_STATUS_SUCCESS; |
2271 | } | |
2272 | ||
2273 | ||
09368515 | 2274 | #ifdef CONFIG_OWE |
91cc34bf JM |
2275 | |
2276 | static int owe_group_supported(struct hostapd_data *hapd, u16 group) | |
2277 | { | |
2278 | int i; | |
2279 | int *groups = hapd->conf->owe_groups; | |
2280 | ||
2281 | if (group != 19 && group != 20 && group != 21) | |
2282 | return 0; | |
2283 | ||
2284 | if (!groups) | |
2285 | return 1; | |
2286 | ||
2287 | for (i = 0; groups[i] > 0; i++) { | |
2288 | if (groups[i] == group) | |
2289 | return 1; | |
2290 | } | |
2291 | ||
2292 | return 0; | |
2293 | } | |
2294 | ||
2295 | ||
d90f10fa JM |
2296 | static u16 owe_process_assoc_req(struct hostapd_data *hapd, |
2297 | struct sta_info *sta, const u8 *owe_dh, | |
09368515 JM |
2298 | u8 owe_dh_len) |
2299 | { | |
2300 | struct wpabuf *secret, *pub, *hkey; | |
2301 | int res; | |
7a12edd1 | 2302 | u8 prk[SHA512_MAC_LEN], pmkid[SHA512_MAC_LEN]; |
09368515 JM |
2303 | const char *info = "OWE Key Generation"; |
2304 | const u8 *addr[2]; | |
2305 | size_t len[2]; | |
7a12edd1 JM |
2306 | u16 group; |
2307 | size_t hash_len, prime_len; | |
2308 | ||
d90f10fa JM |
2309 | if (wpa_auth_sta_get_pmksa(sta->wpa_sm)) { |
2310 | wpa_printf(MSG_DEBUG, "OWE: Using PMKSA caching"); | |
2311 | return WLAN_STATUS_SUCCESS; | |
2312 | } | |
2313 | ||
7a12edd1 | 2314 | group = WPA_GET_LE16(owe_dh); |
91cc34bf JM |
2315 | if (!owe_group_supported(hapd, group)) { |
2316 | wpa_printf(MSG_DEBUG, "OWE: Unsupported DH group %u", group); | |
2317 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
2318 | } | |
7a12edd1 JM |
2319 | if (group == 19) |
2320 | prime_len = 32; | |
2321 | else if (group == 20) | |
2322 | prime_len = 48; | |
2323 | else if (group == 21) | |
2324 | prime_len = 66; | |
2325 | else | |
09368515 JM |
2326 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; |
2327 | ||
2328 | crypto_ecdh_deinit(sta->owe_ecdh); | |
7a12edd1 | 2329 | sta->owe_ecdh = crypto_ecdh_init(group); |
09368515 JM |
2330 | if (!sta->owe_ecdh) |
2331 | return WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED; | |
7a12edd1 | 2332 | sta->owe_group = group; |
09368515 JM |
2333 | |
2334 | secret = crypto_ecdh_set_peerkey(sta->owe_ecdh, 0, owe_dh + 2, | |
2335 | owe_dh_len - 2); | |
7a12edd1 | 2336 | secret = wpabuf_zeropad(secret, prime_len); |
09368515 JM |
2337 | if (!secret) { |
2338 | wpa_printf(MSG_DEBUG, "OWE: Invalid peer DH public key"); | |
2339 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2340 | } | |
2341 | wpa_hexdump_buf_key(MSG_DEBUG, "OWE: DH shared secret", secret); | |
2342 | ||
2343 | /* prk = HKDF-extract(C | A | group, z) */ | |
2344 | ||
2345 | pub = crypto_ecdh_get_pubkey(sta->owe_ecdh, 0); | |
2346 | if (!pub) { | |
2347 | wpabuf_clear_free(secret); | |
2348 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2349 | } | |
2350 | ||
2351 | /* PMKID = Truncate-128(Hash(C | A)) */ | |
2352 | addr[0] = owe_dh + 2; | |
2353 | len[0] = owe_dh_len - 2; | |
2354 | addr[1] = wpabuf_head(pub); | |
2355 | len[1] = wpabuf_len(pub); | |
7a12edd1 JM |
2356 | if (group == 19) { |
2357 | res = sha256_vector(2, addr, len, pmkid); | |
2358 | hash_len = SHA256_MAC_LEN; | |
2359 | } else if (group == 20) { | |
2360 | res = sha384_vector(2, addr, len, pmkid); | |
2361 | hash_len = SHA384_MAC_LEN; | |
2362 | } else if (group == 21) { | |
2363 | res = sha512_vector(2, addr, len, pmkid); | |
2364 | hash_len = SHA512_MAC_LEN; | |
2365 | } else { | |
2366 | wpabuf_free(pub); | |
2367 | wpabuf_clear_free(secret); | |
2368 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2369 | } | |
2370 | pub = wpabuf_zeropad(pub, prime_len); | |
2371 | if (res < 0 || !pub) { | |
09368515 JM |
2372 | wpabuf_free(pub); |
2373 | wpabuf_clear_free(secret); | |
2374 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2375 | } | |
2376 | ||
2377 | hkey = wpabuf_alloc(owe_dh_len - 2 + wpabuf_len(pub) + 2); | |
2378 | if (!hkey) { | |
2379 | wpabuf_free(pub); | |
2380 | wpabuf_clear_free(secret); | |
2381 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2382 | } | |
2383 | ||
2384 | wpabuf_put_data(hkey, owe_dh + 2, owe_dh_len - 2); /* C */ | |
2385 | wpabuf_put_buf(hkey, pub); /* A */ | |
2386 | wpabuf_free(pub); | |
7a12edd1 JM |
2387 | wpabuf_put_le16(hkey, group); /* group */ |
2388 | if (group == 19) | |
2389 | res = hmac_sha256(wpabuf_head(hkey), wpabuf_len(hkey), | |
2390 | wpabuf_head(secret), wpabuf_len(secret), prk); | |
2391 | else if (group == 20) | |
2392 | res = hmac_sha384(wpabuf_head(hkey), wpabuf_len(hkey), | |
2393 | wpabuf_head(secret), wpabuf_len(secret), prk); | |
2394 | else if (group == 21) | |
2395 | res = hmac_sha512(wpabuf_head(hkey), wpabuf_len(hkey), | |
2396 | wpabuf_head(secret), wpabuf_len(secret), prk); | |
09368515 JM |
2397 | wpabuf_clear_free(hkey); |
2398 | wpabuf_clear_free(secret); | |
2399 | if (res < 0) | |
2400 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2401 | ||
7a12edd1 | 2402 | wpa_hexdump_key(MSG_DEBUG, "OWE: prk", prk, hash_len); |
09368515 JM |
2403 | |
2404 | /* PMK = HKDF-expand(prk, "OWE Key Generation", n) */ | |
2405 | ||
2406 | os_free(sta->owe_pmk); | |
7a12edd1 | 2407 | sta->owe_pmk = os_malloc(hash_len); |
09368515 | 2408 | if (!sta->owe_pmk) { |
7a12edd1 | 2409 | os_memset(prk, 0, SHA512_MAC_LEN); |
09368515 JM |
2410 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
2411 | } | |
2412 | ||
7a12edd1 JM |
2413 | if (group == 19) |
2414 | res = hmac_sha256_kdf(prk, hash_len, NULL, (const u8 *) info, | |
2415 | os_strlen(info), sta->owe_pmk, hash_len); | |
2416 | else if (group == 20) | |
2417 | res = hmac_sha384_kdf(prk, hash_len, NULL, (const u8 *) info, | |
2418 | os_strlen(info), sta->owe_pmk, hash_len); | |
2419 | else if (group == 21) | |
2420 | res = hmac_sha512_kdf(prk, hash_len, NULL, (const u8 *) info, | |
2421 | os_strlen(info), sta->owe_pmk, hash_len); | |
2422 | os_memset(prk, 0, SHA512_MAC_LEN); | |
09368515 JM |
2423 | if (res < 0) { |
2424 | os_free(sta->owe_pmk); | |
2425 | sta->owe_pmk = NULL; | |
2426 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2427 | } | |
7a12edd1 | 2428 | sta->owe_pmk_len = hash_len; |
09368515 | 2429 | |
7a12edd1 | 2430 | wpa_hexdump_key(MSG_DEBUG, "OWE: PMK", sta->owe_pmk, sta->owe_pmk_len); |
09368515 | 2431 | wpa_hexdump(MSG_DEBUG, "OWE: PMKID", pmkid, PMKID_LEN); |
d90f10fa JM |
2432 | wpa_auth_pmksa_add2(hapd->wpa_auth, sta->addr, sta->owe_pmk, |
2433 | sta->owe_pmk_len, pmkid, 0, WPA_KEY_MGMT_OWE); | |
09368515 JM |
2434 | |
2435 | return WLAN_STATUS_SUCCESS; | |
2436 | } | |
91cc34bf | 2437 | |
09368515 JM |
2438 | #endif /* CONFIG_OWE */ |
2439 | ||
2440 | ||
5586f500 | 2441 | static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta, |
b57e086c | 2442 | const u8 *ies, size_t ies_len, int reassoc) |
5586f500 JM |
2443 | { |
2444 | struct ieee802_11_elems elems; | |
2445 | u16 resp; | |
ba091c06 | 2446 | const u8 *wpa_ie; |
5586f500 | 2447 | size_t wpa_ie_len; |
94ddef3e | 2448 | const u8 *p2p_dev_addr = NULL; |
5586f500 JM |
2449 | |
2450 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) { | |
2451 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2452 | HOSTAPD_LEVEL_INFO, "Station sent an invalid " | |
2453 | "association request"); | |
2454 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2455 | } | |
2456 | ||
2457 | resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len); | |
2458 | if (resp != WLAN_STATUS_SUCCESS) | |
2459 | return resp; | |
2460 | resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len); | |
c551700f KP |
2461 | if (resp != WLAN_STATUS_SUCCESS) |
2462 | return resp; | |
2463 | resp = check_ext_capab(hapd, sta, elems.ext_capab, elems.ext_capab_len); | |
5586f500 JM |
2464 | if (resp != WLAN_STATUS_SUCCESS) |
2465 | return resp; | |
2466 | resp = copy_supp_rates(hapd, sta, &elems); | |
2467 | if (resp != WLAN_STATUS_SUCCESS) | |
2468 | return resp; | |
d45354be | 2469 | #ifdef CONFIG_IEEE80211N |
baae4cb9 | 2470 | resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities); |
5586f500 JM |
2471 | if (resp != WLAN_STATUS_SUCCESS) |
2472 | return resp; | |
29448243 JM |
2473 | if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && |
2474 | !(sta->flags & WLAN_STA_HT)) { | |
2475 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2476 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
2477 | "mandatory HT PHY - reject association"); | |
2478 | return WLAN_STATUS_ASSOC_DENIED_NO_HT; | |
2479 | } | |
d45354be | 2480 | #endif /* CONFIG_IEEE80211N */ |
5586f500 | 2481 | |
de3cdf35 | 2482 | #ifdef CONFIG_IEEE80211AC |
28ffd21c ARN |
2483 | if (hapd->iconf->ieee80211ac) { |
2484 | resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities); | |
2485 | if (resp != WLAN_STATUS_SUCCESS) | |
2486 | return resp; | |
8a458116 | 2487 | |
ad20a136 MV |
2488 | resp = copy_sta_vht_oper(hapd, sta, elems.vht_operation); |
2489 | if (resp != WLAN_STATUS_SUCCESS) | |
2490 | return resp; | |
2491 | ||
28ffd21c ARN |
2492 | resp = set_sta_vht_opmode(hapd, sta, elems.vht_opmode_notif); |
2493 | if (resp != WLAN_STATUS_SUCCESS) | |
2494 | return resp; | |
2495 | } | |
8a458116 | 2496 | |
140e850a MP |
2497 | if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && |
2498 | !(sta->flags & WLAN_STA_VHT)) { | |
2499 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2500 | HOSTAPD_LEVEL_INFO, "Station does not support " | |
2501 | "mandatory VHT PHY - reject association"); | |
13b24a76 | 2502 | return WLAN_STATUS_ASSOC_DENIED_NO_VHT; |
140e850a | 2503 | } |
e7d0e97b YL |
2504 | |
2505 | if (hapd->conf->vendor_vht && !elems.vht_capabilities) { | |
2506 | resp = copy_sta_vendor_vht(hapd, sta, elems.vendor_vht, | |
2507 | elems.vendor_vht_len); | |
2508 | if (resp != WLAN_STATUS_SUCCESS) | |
2509 | return resp; | |
2510 | } | |
de3cdf35 MP |
2511 | #endif /* CONFIG_IEEE80211AC */ |
2512 | ||
94ddef3e JM |
2513 | #ifdef CONFIG_P2P |
2514 | if (elems.p2p) { | |
2515 | wpabuf_free(sta->p2p_ie); | |
2516 | sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, | |
2517 | P2P_IE_VENDOR_TYPE); | |
2518 | if (sta->p2p_ie) | |
2519 | p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); | |
2520 | } else { | |
2521 | wpabuf_free(sta->p2p_ie); | |
2522 | sta->p2p_ie = NULL; | |
2523 | } | |
2524 | #endif /* CONFIG_P2P */ | |
2525 | ||
6fc6879b JM |
2526 | if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) { |
2527 | wpa_ie = elems.rsn_ie; | |
2528 | wpa_ie_len = elems.rsn_ie_len; | |
2529 | } else if ((hapd->conf->wpa & WPA_PROTO_WPA) && | |
2530 | elems.wpa_ie) { | |
2531 | wpa_ie = elems.wpa_ie; | |
2532 | wpa_ie_len = elems.wpa_ie_len; | |
2533 | } else { | |
2534 | wpa_ie = NULL; | |
2535 | wpa_ie_len = 0; | |
2536 | } | |
5586f500 | 2537 | |
ad08c363 | 2538 | #ifdef CONFIG_WPS |
17f6b900 | 2539 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
c47cf42e JM |
2540 | if (hapd->conf->wps_state && elems.wps_ie) { |
2541 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association " | |
2542 | "Request - assume WPS is used"); | |
2543 | sta->flags |= WLAN_STA_WPS; | |
2544 | wpabuf_free(sta->wps_ie); | |
16e46ec0 JM |
2545 | sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
2546 | WPS_IE_VENDOR_TYPE); | |
17f6b900 JM |
2547 | if (sta->wps_ie && wps_is_20(sta->wps_ie)) { |
2548 | wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); | |
2549 | sta->flags |= WLAN_STA_WPS2; | |
2550 | } | |
c47cf42e JM |
2551 | wpa_ie = NULL; |
2552 | wpa_ie_len = 0; | |
54f489be JM |
2553 | if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) { |
2554 | wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in " | |
2555 | "(Re)Association Request - reject"); | |
2556 | return WLAN_STATUS_INVALID_IE; | |
2557 | } | |
c47cf42e JM |
2558 | } else if (hapd->conf->wps_state && wpa_ie == NULL) { |
2559 | wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in " | |
2560 | "(Re)Association Request - possible WPS use"); | |
2561 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
ad08c363 JM |
2562 | } else |
2563 | #endif /* CONFIG_WPS */ | |
6fc6879b | 2564 | if (hapd->conf->wpa && wpa_ie == NULL) { |
5586f500 JM |
2565 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
2566 | HOSTAPD_LEVEL_INFO, | |
2567 | "No WPA/RSN IE in association request"); | |
2568 | return WLAN_STATUS_INVALID_IE; | |
6fc6879b JM |
2569 | } |
2570 | ||
2571 | if (hapd->conf->wpa && wpa_ie) { | |
2572 | int res; | |
2573 | wpa_ie -= 2; | |
2574 | wpa_ie_len += 2; | |
2575 | if (sta->wpa_sm == NULL) | |
2576 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
94ddef3e JM |
2577 | sta->addr, |
2578 | p2p_dev_addr); | |
6fc6879b | 2579 | if (sta->wpa_sm == NULL) { |
5586f500 JM |
2580 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " |
2581 | "state machine"); | |
2582 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
6fc6879b JM |
2583 | } |
2584 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
2585 | wpa_ie, wpa_ie_len, | |
09368515 JM |
2586 | elems.mdie, elems.mdie_len, |
2587 | elems.owe_dh, elems.owe_dh_len); | |
ffb62f22 | 2588 | resp = wpa_res_to_status_code(res); |
6fc6879b | 2589 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 2590 | return resp; |
f3f7540e | 2591 | #ifdef CONFIG_IEEE80211W |
edb28006 AK |
2592 | if ((sta->flags & (WLAN_STA_ASSOC | WLAN_STA_MFP)) == |
2593 | (WLAN_STA_ASSOC | WLAN_STA_MFP) && | |
2594 | !sta->sa_query_timed_out && | |
45c94154 JM |
2595 | sta->sa_query_count > 0) |
2596 | ap_check_sa_query_timeout(hapd, sta); | |
edb28006 AK |
2597 | if ((sta->flags & (WLAN_STA_ASSOC | WLAN_STA_MFP)) == |
2598 | (WLAN_STA_ASSOC | WLAN_STA_MFP) && | |
2599 | !sta->sa_query_timed_out && | |
8f4617c6 | 2600 | (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) { |
5d22a1d5 | 2601 | /* |
93b76319 JM |
2602 | * STA has already been associated with MFP and SA |
2603 | * Query timeout has not been reached. Reject the | |
2604 | * association attempt temporarily and start SA Query, | |
2605 | * if one is not pending. | |
5d22a1d5 JM |
2606 | */ |
2607 | ||
93b76319 JM |
2608 | if (sta->sa_query_count == 0) |
2609 | ap_sta_start_sa_query(hapd, sta); | |
5d22a1d5 | 2610 | |
5586f500 | 2611 | return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; |
5d22a1d5 JM |
2612 | } |
2613 | ||
f3f7540e JM |
2614 | if (wpa_auth_uses_mfp(sta->wpa_sm)) |
2615 | sta->flags |= WLAN_STA_MFP; | |
2616 | else | |
2617 | sta->flags &= ~WLAN_STA_MFP; | |
2618 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b | 2619 | |
4ec1fd8e | 2620 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b JM |
2621 | if (sta->auth_alg == WLAN_AUTH_FT) { |
2622 | if (!reassoc) { | |
2623 | wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried " | |
2624 | "to use association (not " | |
2625 | "re-association) with FT auth_alg", | |
2626 | MAC2STR(sta->addr)); | |
5586f500 | 2627 | return WLAN_STATUS_UNSPECIFIED_FAILURE; |
6fc6879b JM |
2628 | } |
2629 | ||
5586f500 JM |
2630 | resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies, |
2631 | ies_len); | |
6fc6879b | 2632 | if (resp != WLAN_STATUS_SUCCESS) |
5586f500 | 2633 | return resp; |
6fc6879b | 2634 | } |
4ec1fd8e | 2635 | #endif /* CONFIG_IEEE80211R_AP */ |
5586f500 | 2636 | |
c10347f2 | 2637 | #ifdef CONFIG_SAE |
9d94e4bb JM |
2638 | if (wpa_auth_uses_sae(sta->wpa_sm) && sta->sae && |
2639 | sta->sae->state == SAE_ACCEPTED) | |
2640 | wpa_auth_add_sae_pmkid(sta->wpa_sm, sta->sae->pmkid); | |
2641 | ||
c10347f2 | 2642 | if (wpa_auth_uses_sae(sta->wpa_sm) && |
f2991170 JM |
2643 | sta->auth_alg == WLAN_AUTH_OPEN) { |
2644 | struct rsn_pmksa_cache_entry *sa; | |
2645 | sa = wpa_auth_sta_get_pmksa(sta->wpa_sm); | |
2646 | if (!sa || sa->akmp != WPA_KEY_MGMT_SAE) { | |
2647 | wpa_printf(MSG_DEBUG, | |
2648 | "SAE: No PMKSA cache entry found for " | |
2649 | MACSTR, MAC2STR(sta->addr)); | |
2650 | return WLAN_STATUS_INVALID_PMKID; | |
2651 | } | |
2652 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR | |
2653 | " using PMKSA caching", MAC2STR(sta->addr)); | |
2654 | } else if (wpa_auth_uses_sae(sta->wpa_sm) && | |
2655 | sta->auth_alg != WLAN_AUTH_SAE && | |
2656 | !(sta->auth_alg == WLAN_AUTH_FT && | |
2657 | wpa_auth_uses_ft_sae(sta->wpa_sm))) { | |
c10347f2 JM |
2658 | wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use " |
2659 | "SAE AKM after non-SAE auth_alg %u", | |
2660 | MAC2STR(sta->addr), sta->auth_alg); | |
2661 | return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; | |
2662 | } | |
2663 | #endif /* CONFIG_SAE */ | |
2664 | ||
09368515 JM |
2665 | #ifdef CONFIG_OWE |
2666 | if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) && | |
2667 | wpa_auth_sta_key_mgmt(sta->wpa_sm) == WPA_KEY_MGMT_OWE && | |
2668 | elems.owe_dh) { | |
d90f10fa | 2669 | resp = owe_process_assoc_req(hapd, sta, elems.owe_dh, |
09368515 JM |
2670 | elems.owe_dh_len); |
2671 | if (resp != WLAN_STATUS_SUCCESS) | |
2672 | return resp; | |
2673 | } | |
2674 | #endif /* CONFIG_OWE */ | |
2675 | ||
ff36ff00 | 2676 | #ifdef CONFIG_IEEE80211N |
f0c7a986 | 2677 | if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) && |
ff36ff00 | 2678 | wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) { |
5586f500 JM |
2679 | hostapd_logger(hapd, sta->addr, |
2680 | HOSTAPD_MODULE_IEEE80211, | |
2681 | HOSTAPD_LEVEL_INFO, | |
2682 | "Station tried to use TKIP with HT " | |
2683 | "association"); | |
2684 | return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; | |
ff36ff00 JM |
2685 | } |
2686 | #endif /* CONFIG_IEEE80211N */ | |
a14896e8 JM |
2687 | #ifdef CONFIG_HS20 |
2688 | } else if (hapd->conf->osen) { | |
2689 | if (elems.osen == NULL) { | |
2690 | hostapd_logger( | |
2691 | hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
2692 | HOSTAPD_LEVEL_INFO, | |
2693 | "No HS 2.0 OSEN element in association request"); | |
2694 | return WLAN_STATUS_INVALID_IE; | |
2695 | } | |
2696 | ||
2697 | wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association"); | |
2698 | if (sta->wpa_sm == NULL) | |
2699 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
2700 | sta->addr, NULL); | |
2701 | if (sta->wpa_sm == NULL) { | |
2702 | wpa_printf(MSG_WARNING, "Failed to initialize WPA " | |
2703 | "state machine"); | |
2704 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2705 | } | |
2706 | if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm, | |
2707 | elems.osen - 2, elems.osen_len + 2) < 0) | |
2708 | return WLAN_STATUS_INVALID_IE; | |
2709 | #endif /* CONFIG_HS20 */ | |
a8d05fca JM |
2710 | } else |
2711 | wpa_auth_sta_no_wpa(sta->wpa_sm); | |
6fc6879b | 2712 | |
b305c684 | 2713 | #ifdef CONFIG_P2P |
3f4ce13f | 2714 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len); |
b305c684 JM |
2715 | #endif /* CONFIG_P2P */ |
2716 | ||
f403dcd6 JM |
2717 | #ifdef CONFIG_HS20 |
2718 | wpabuf_free(sta->hs20_ie); | |
2719 | if (elems.hs20 && elems.hs20_len > 4) { | |
f3784a6b JM |
2720 | int release; |
2721 | ||
f403dcd6 JM |
2722 | sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, |
2723 | elems.hs20_len - 4); | |
f3784a6b JM |
2724 | release = ((elems.hs20[4] >> 4) & 0x0f) + 1; |
2725 | if (release >= 2 && !wpa_auth_uses_mfp(sta->wpa_sm)) { | |
2726 | wpa_printf(MSG_DEBUG, | |
2727 | "HS 2.0: PMF not negotiated by release %d station " | |
2728 | MACSTR, release, MAC2STR(sta->addr)); | |
2729 | return WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION; | |
2730 | } | |
2731 | } else { | |
f403dcd6 | 2732 | sta->hs20_ie = NULL; |
f3784a6b | 2733 | } |
67cca346 JM |
2734 | |
2735 | wpabuf_free(sta->roaming_consortium); | |
2736 | if (elems.roaming_cons_sel) | |
2737 | sta->roaming_consortium = wpabuf_alloc_copy( | |
2738 | elems.roaming_cons_sel + 4, | |
2739 | elems.roaming_cons_sel_len - 4); | |
2740 | else | |
2741 | sta->roaming_consortium = NULL; | |
f403dcd6 JM |
2742 | #endif /* CONFIG_HS20 */ |
2743 | ||
ae667c08 AN |
2744 | #ifdef CONFIG_FST |
2745 | wpabuf_free(sta->mb_ies); | |
2746 | if (hapd->iface->fst) | |
2747 | sta->mb_ies = mb_ies_by_info(&elems.mb_ies); | |
2748 | else | |
2749 | sta->mb_ies = NULL; | |
2750 | #endif /* CONFIG_FST */ | |
2751 | ||
4c572281 | 2752 | #ifdef CONFIG_MBO |
6332aaf3 JM |
2753 | mbo_ap_check_sta_assoc(hapd, sta, &elems); |
2754 | ||
4c572281 JM |
2755 | if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) && |
2756 | elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) && | |
2757 | hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) { | |
2758 | wpa_printf(MSG_INFO, | |
2759 | "MBO: Reject WPA2 association without PMF"); | |
2760 | return WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2761 | } | |
2762 | #endif /* CONFIG_MBO */ | |
2763 | ||
adf0478e JM |
2764 | ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes, |
2765 | elems.supp_op_classes_len); | |
2766 | ||
629e1804 DS |
2767 | if ((sta->capability & WLAN_CAPABILITY_RADIO_MEASUREMENT) && |
2768 | elems.rrm_enabled && | |
2769 | elems.rrm_enabled_len >= sizeof(sta->rrm_enabled_capa)) | |
2770 | os_memcpy(sta->rrm_enabled_capa, elems.rrm_enabled, | |
2771 | sizeof(sta->rrm_enabled_capa)); | |
2772 | ||
ba72b4b1 | 2773 | if (elems.power_capab) { |
2774 | sta->min_tx_power = elems.power_capab[0]; | |
2775 | sta->max_tx_power = elems.power_capab[1]; | |
2776 | sta->power_capab = 1; | |
2777 | } else { | |
2778 | sta->power_capab = 0; | |
2779 | } | |
2780 | ||
5586f500 JM |
2781 | return WLAN_STATUS_SUCCESS; |
2782 | } | |
2783 | ||
2784 | ||
2785 | static void send_deauth(struct hostapd_data *hapd, const u8 *addr, | |
2786 | u16 reason_code) | |
2787 | { | |
2788 | int send_len; | |
2789 | struct ieee80211_mgmt reply; | |
2790 | ||
2791 | os_memset(&reply, 0, sizeof(reply)); | |
2792 | reply.frame_control = | |
2793 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH); | |
2794 | os_memcpy(reply.da, addr, ETH_ALEN); | |
2795 | os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN); | |
2796 | os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN); | |
2797 | ||
2798 | send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth); | |
2799 | reply.u.deauth.reason_code = host_to_le16(reason_code); | |
2800 | ||
8cfa3527 | 2801 | if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0) |
5586f500 JM |
2802 | wpa_printf(MSG_INFO, "Failed to send deauth: %s", |
2803 | strerror(errno)); | |
2804 | } | |
2805 | ||
2806 | ||
3f81ac07 AO |
2807 | static int add_associated_sta(struct hostapd_data *hapd, |
2808 | struct sta_info *sta) | |
2809 | { | |
2810 | struct ieee80211_ht_capabilities ht_cap; | |
2811 | struct ieee80211_vht_capabilities vht_cap; | |
0e3bd7ac | 2812 | int set = 1; |
3f81ac07 AO |
2813 | |
2814 | /* | |
2815 | * Remove the STA entry to ensure the STA PS state gets cleared and | |
2816 | * configuration gets updated. This is relevant for cases, such as | |
2817 | * FT-over-the-DS, where a station re-associates back to the same AP but | |
2818 | * skips the authentication flow, or if working with a driver that | |
2819 | * does not support full AP client state. | |
0e3bd7ac MV |
2820 | * |
2821 | * Skip this if the STA has already completed FT reassociation and the | |
2822 | * TK has been configured since the TX/RX PN must not be reset to 0 for | |
2823 | * the same key. | |
3f81ac07 | 2824 | */ |
0e3bd7ac MV |
2825 | if (!sta->added_unassoc && |
2826 | (!(sta->flags & WLAN_STA_AUTHORIZED) || | |
2f1357fb JM |
2827 | (!wpa_auth_sta_ft_tk_already_set(sta->wpa_sm) && |
2828 | !wpa_auth_sta_fils_tk_already_set(sta->wpa_sm)))) { | |
3f81ac07 | 2829 | hostapd_drv_sta_remove(hapd, sta->addr); |
0e3bd7ac MV |
2830 | wpa_auth_sm_event(sta->wpa_sm, WPA_DRV_STA_REMOVED); |
2831 | set = 0; | |
2832 | } | |
3f81ac07 AO |
2833 | |
2834 | #ifdef CONFIG_IEEE80211N | |
2835 | if (sta->flags & WLAN_STA_HT) | |
2836 | hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap); | |
2837 | #endif /* CONFIG_IEEE80211N */ | |
2838 | #ifdef CONFIG_IEEE80211AC | |
2839 | if (sta->flags & WLAN_STA_VHT) | |
2840 | hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap); | |
2841 | #endif /* CONFIG_IEEE80211AC */ | |
2842 | ||
2843 | /* | |
2844 | * Add the station with forced WLAN_STA_ASSOC flag. The sta->flags | |
2845 | * will be set when the ACK frame for the (Re)Association Response frame | |
2846 | * is processed (TX status driver event). | |
2847 | */ | |
2848 | if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability, | |
2849 | sta->supported_rates, sta->supported_rates_len, | |
2850 | sta->listen_interval, | |
2851 | sta->flags & WLAN_STA_HT ? &ht_cap : NULL, | |
2852 | sta->flags & WLAN_STA_VHT ? &vht_cap : NULL, | |
2853 | sta->flags | WLAN_STA_ASSOC, sta->qosinfo, | |
ae33239c | 2854 | sta->vht_opmode, sta->p2p_ie ? 1 : 0, |
0e3bd7ac | 2855 | set)) { |
3f81ac07 AO |
2856 | hostapd_logger(hapd, sta->addr, |
2857 | HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_NOTICE, | |
2858 | "Could not %s STA to kernel driver", | |
0e3bd7ac | 2859 | set ? "set" : "add"); |
3f81ac07 AO |
2860 | |
2861 | if (sta->added_unassoc) { | |
2862 | hostapd_drv_sta_remove(hapd, sta->addr); | |
2863 | sta->added_unassoc = 0; | |
2864 | } | |
2865 | ||
2866 | return -1; | |
2867 | } | |
2868 | ||
2869 | sta->added_unassoc = 0; | |
2870 | ||
2871 | return 0; | |
2872 | } | |
2873 | ||
2874 | ||
bb598c3b | 2875 | static u16 send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta, |
05e5e615 DL |
2876 | const u8 *addr, u16 status_code, int reassoc, |
2877 | const u8 *ies, size_t ies_len) | |
5586f500 JM |
2878 | { |
2879 | int send_len; | |
91d91abf JM |
2880 | u8 *buf; |
2881 | size_t buflen; | |
5586f500 JM |
2882 | struct ieee80211_mgmt *reply; |
2883 | u8 *p; | |
91d91abf | 2884 | u16 res = WLAN_STATUS_SUCCESS; |
5586f500 | 2885 | |
91d91abf JM |
2886 | buflen = sizeof(struct ieee80211_mgmt) + 1024; |
2887 | #ifdef CONFIG_FILS | |
84bb12aa | 2888 | if (sta && sta->fils_hlp_resp) |
91d91abf JM |
2889 | buflen += wpabuf_len(sta->fils_hlp_resp); |
2890 | #endif /* CONFIG_FILS */ | |
09368515 JM |
2891 | #ifdef CONFIG_OWE |
2892 | if (sta && (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE)) | |
d8c8d857 | 2893 | buflen += 150; |
09368515 | 2894 | #endif /* CONFIG_OWE */ |
91d91abf JM |
2895 | buf = os_zalloc(buflen); |
2896 | if (!buf) { | |
2897 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2898 | goto done; | |
2899 | } | |
5586f500 JM |
2900 | reply = (struct ieee80211_mgmt *) buf; |
2901 | reply->frame_control = | |
2902 | IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
2903 | (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : | |
2904 | WLAN_FC_STYPE_ASSOC_RESP)); | |
05e5e615 | 2905 | os_memcpy(reply->da, addr, ETH_ALEN); |
5586f500 JM |
2906 | os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN); |
2907 | os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN); | |
2908 | ||
2909 | send_len = IEEE80211_HDRLEN; | |
2910 | send_len += sizeof(reply->u.assoc_resp); | |
2911 | reply->u.assoc_resp.capab_info = | |
f41ded6f | 2912 | host_to_le16(hostapd_own_capab_info(hapd)); |
5586f500 | 2913 | reply->u.assoc_resp.status_code = host_to_le16(status_code); |
05e5e615 DL |
2914 | |
2915 | reply->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0) | | |
2916 | BIT(14) | BIT(15)); | |
5586f500 JM |
2917 | /* Supported rates */ |
2918 | p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable); | |
2919 | /* Extended supported rates */ | |
2920 | p = hostapd_eid_ext_supp_rates(hapd, p); | |
5586f500 | 2921 | |
4ec1fd8e | 2922 | #ifdef CONFIG_IEEE80211R_AP |
05e5e615 | 2923 | if (sta && status_code == WLAN_STATUS_SUCCESS) { |
5586f500 JM |
2924 | /* IEEE 802.11r: Mobility Domain Information, Fast BSS |
2925 | * Transition Information, RSN, [RIC Response] */ | |
2926 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p, | |
91d91abf | 2927 | buf + buflen - p, |
5586f500 | 2928 | sta->auth_alg, ies, ies_len); |
2cf36d60 JM |
2929 | if (!p) { |
2930 | wpa_printf(MSG_DEBUG, | |
2931 | "FT: Failed to write AssocResp IEs"); | |
2932 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
2933 | goto done; | |
2934 | } | |
5586f500 | 2935 | } |
4ec1fd8e | 2936 | #endif /* CONFIG_IEEE80211R_AP */ |
5586f500 | 2937 | |
d8c8d857 | 2938 | #ifdef CONFIG_OWE |
8fc6d884 JM |
2939 | if (sta && status_code == WLAN_STATUS_SUCCESS && |
2940 | (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE)) | |
d8c8d857 JM |
2941 | p = wpa_auth_write_assoc_resp_owe(sta->wpa_sm, p, |
2942 | buf + buflen - p, | |
2943 | ies, ies_len); | |
2944 | #endif /* CONFIG_OWE */ | |
2945 | ||
5586f500 | 2946 | #ifdef CONFIG_IEEE80211W |
05e5e615 | 2947 | if (sta && status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) |
5586f500 JM |
2948 | p = hostapd_eid_assoc_comeback_time(hapd, sta, p); |
2949 | #endif /* CONFIG_IEEE80211W */ | |
2950 | ||
1bc774a1 JM |
2951 | #ifdef CONFIG_IEEE80211N |
2952 | p = hostapd_eid_ht_capabilities(hapd, p); | |
2953 | p = hostapd_eid_ht_operation(hapd, p); | |
2954 | #endif /* CONFIG_IEEE80211N */ | |
2955 | ||
14708b50 | 2956 | #ifdef CONFIG_IEEE80211AC |
e7d0e97b | 2957 | if (hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) { |
fc72a48a T |
2958 | u32 nsts = 0, sta_nsts; |
2959 | ||
05e5e615 | 2960 | if (sta && hapd->conf->use_sta_nsts && sta->vht_capabilities) { |
fc72a48a T |
2961 | struct ieee80211_vht_capabilities *capa; |
2962 | ||
2963 | nsts = (hapd->iface->conf->vht_capab >> | |
2964 | VHT_CAP_BEAMFORMEE_STS_OFFSET) & 7; | |
2965 | capa = sta->vht_capabilities; | |
2966 | sta_nsts = (le_to_host32(capa->vht_capabilities_info) >> | |
2967 | VHT_CAP_BEAMFORMEE_STS_OFFSET) & 7; | |
2968 | ||
2969 | if (nsts < sta_nsts) | |
2970 | nsts = 0; | |
2971 | else | |
2972 | nsts = sta_nsts; | |
2973 | } | |
2974 | p = hostapd_eid_vht_capabilities(hapd, p, nsts); | |
e7d0e97b YL |
2975 | p = hostapd_eid_vht_operation(hapd, p); |
2976 | } | |
14708b50 MP |
2977 | #endif /* CONFIG_IEEE80211AC */ |
2978 | ||
1161ff1e | 2979 | p = hostapd_eid_ext_capab(hapd, p); |
b6668734 | 2980 | p = hostapd_eid_bss_max_idle_period(hapd, p); |
05e5e615 | 2981 | if (sta && sta->qos_map_enabled) |
c551700f | 2982 | p = hostapd_eid_qos_map_set(hapd, p); |
1161ff1e | 2983 | |
347827ff AN |
2984 | #ifdef CONFIG_FST |
2985 | if (hapd->iface->fst_ies) { | |
2986 | os_memcpy(p, wpabuf_head(hapd->iface->fst_ies), | |
2987 | wpabuf_len(hapd->iface->fst_ies)); | |
2988 | p += wpabuf_len(hapd->iface->fst_ies); | |
2989 | } | |
2990 | #endif /* CONFIG_FST */ | |
2991 | ||
e7d0e97b | 2992 | #ifdef CONFIG_IEEE80211AC |
05e5e615 | 2993 | if (sta && hapd->conf->vendor_vht && (sta->flags & WLAN_STA_VENDOR_VHT)) |
e7d0e97b YL |
2994 | p = hostapd_eid_vendor_vht(hapd, p); |
2995 | #endif /* CONFIG_IEEE80211AC */ | |
2996 | ||
05e5e615 | 2997 | if (sta && (sta->flags & WLAN_STA_WMM)) |
1bc774a1 JM |
2998 | p = hostapd_eid_wmm(hapd, p); |
2999 | ||
ed7a09f9 | 3000 | #ifdef CONFIG_WPS |
05e5e615 DL |
3001 | if (sta && |
3002 | ((sta->flags & WLAN_STA_WPS) || | |
3003 | ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa))) { | |
ed7a09f9 JM |
3004 | struct wpabuf *wps = wps_build_assoc_resp_ie(); |
3005 | if (wps) { | |
3006 | os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps)); | |
3007 | p += wpabuf_len(wps); | |
3008 | wpabuf_free(wps); | |
3009 | } | |
3010 | } | |
3011 | #endif /* CONFIG_WPS */ | |
3012 | ||
8ccbe415 | 3013 | #ifdef CONFIG_P2P |
05e5e615 | 3014 | if (sta && sta->p2p_ie && hapd->p2p_group) { |
8ccbe415 JM |
3015 | struct wpabuf *p2p_resp_ie; |
3016 | enum p2p_status_code status; | |
3017 | switch (status_code) { | |
3018 | case WLAN_STATUS_SUCCESS: | |
3019 | status = P2P_SC_SUCCESS; | |
3020 | break; | |
3021 | case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: | |
3022 | status = P2P_SC_FAIL_LIMIT_REACHED; | |
3023 | break; | |
3024 | default: | |
3025 | status = P2P_SC_FAIL_INVALID_PARAMS; | |
3026 | break; | |
3027 | } | |
3028 | p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status); | |
3029 | if (p2p_resp_ie) { | |
3030 | os_memcpy(p, wpabuf_head(p2p_resp_ie), | |
3031 | wpabuf_len(p2p_resp_ie)); | |
3032 | p += wpabuf_len(p2p_resp_ie); | |
3033 | wpabuf_free(p2p_resp_ie); | |
3034 | } | |
3035 | } | |
3036 | #endif /* CONFIG_P2P */ | |
3037 | ||
962473c1 JM |
3038 | #ifdef CONFIG_P2P_MANAGER |
3039 | if (hapd->conf->p2p & P2P_MANAGE) | |
3040 | p = hostapd_eid_p2p_manage(hapd, p); | |
3041 | #endif /* CONFIG_P2P_MANAGER */ | |
3042 | ||
91d91abf | 3043 | p = hostapd_eid_mbo(hapd, p, buf + buflen - p); |
fb9a1c3e | 3044 | |
a9112270 | 3045 | if (hapd->conf->assocresp_elements && |
91d91abf | 3046 | (size_t) (buf + buflen - p) >= |
a9112270 BKB |
3047 | wpabuf_len(hapd->conf->assocresp_elements)) { |
3048 | os_memcpy(p, wpabuf_head(hapd->conf->assocresp_elements), | |
3049 | wpabuf_len(hapd->conf->assocresp_elements)); | |
3050 | p += wpabuf_len(hapd->conf->assocresp_elements); | |
3051 | } | |
3052 | ||
5586f500 JM |
3053 | send_len += p - reply->u.assoc_resp.variable; |
3054 | ||
e73ffa09 | 3055 | #ifdef CONFIG_FILS |
05e5e615 DL |
3056 | if (sta && |
3057 | (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
e73ffa09 JM |
3058 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || |
3059 | sta->auth_alg == WLAN_AUTH_FILS_PK) && | |
3060 | status_code == WLAN_STATUS_SUCCESS) { | |
3061 | struct ieee802_11_elems elems; | |
3062 | ||
3063 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) == | |
91d91abf JM |
3064 | ParseFailed || !elems.fils_session) { |
3065 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3066 | goto done; | |
3067 | } | |
e73ffa09 JM |
3068 | |
3069 | /* FILS Session */ | |
3070 | *p++ = WLAN_EID_EXTENSION; /* Element ID */ | |
3071 | *p++ = 1 + FILS_SESSION_LEN; /* Length */ | |
3072 | *p++ = WLAN_EID_EXT_FILS_SESSION; /* Element ID Extension */ | |
3073 | os_memcpy(p, elems.fils_session, FILS_SESSION_LEN); | |
3074 | send_len += 2 + 1 + FILS_SESSION_LEN; | |
3075 | ||
3076 | send_len = fils_encrypt_assoc(sta->wpa_sm, buf, send_len, | |
91d91abf JM |
3077 | buflen, sta->fils_hlp_resp); |
3078 | if (send_len < 0) { | |
3079 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3080 | goto done; | |
3081 | } | |
e73ffa09 JM |
3082 | } |
3083 | #endif /* CONFIG_FILS */ | |
3084 | ||
09368515 JM |
3085 | #ifdef CONFIG_OWE |
3086 | if ((hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) && | |
8fc6d884 | 3087 | sta && sta->owe_ecdh && status_code == WLAN_STATUS_SUCCESS && |
09368515 JM |
3088 | wpa_auth_sta_key_mgmt(sta->wpa_sm) == WPA_KEY_MGMT_OWE) { |
3089 | struct wpabuf *pub; | |
3090 | ||
3091 | pub = crypto_ecdh_get_pubkey(sta->owe_ecdh, 0); | |
3092 | if (!pub) { | |
3093 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3094 | goto done; | |
3095 | } | |
3096 | /* OWE Diffie-Hellman Parameter element */ | |
3097 | *p++ = WLAN_EID_EXTENSION; /* Element ID */ | |
3098 | *p++ = 1 + 2 + wpabuf_len(pub); /* Length */ | |
3099 | *p++ = WLAN_EID_EXT_OWE_DH_PARAM; /* Element ID Extension */ | |
7a12edd1 | 3100 | WPA_PUT_LE16(p, sta->owe_group); |
09368515 JM |
3101 | p += 2; |
3102 | os_memcpy(p, wpabuf_head(pub), wpabuf_len(pub)); | |
3103 | p += wpabuf_len(pub); | |
3104 | send_len += 3 + 2 + wpabuf_len(pub); | |
3105 | wpabuf_free(pub); | |
3106 | } | |
3107 | #endif /* CONFIG_OWE */ | |
3108 | ||
bb598c3b | 3109 | if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0) { |
5586f500 JM |
3110 | wpa_printf(MSG_INFO, "Failed to send assoc resp: %s", |
3111 | strerror(errno)); | |
91d91abf | 3112 | res = WLAN_STATUS_UNSPECIFIED_FAILURE; |
bb598c3b AB |
3113 | } |
3114 | ||
91d91abf JM |
3115 | done: |
3116 | os_free(buf); | |
3117 | return res; | |
5586f500 JM |
3118 | } |
3119 | ||
3120 | ||
33c8bbd8 | 3121 | #ifdef CONFIG_OWE |
79ce2d51 AP |
3122 | u8 * owe_assoc_req_process(struct hostapd_data *hapd, struct sta_info *sta, |
3123 | const u8 *owe_dh, u8 owe_dh_len, | |
3124 | u8 *owe_buf, size_t owe_buf_len, u16 *reason) | |
33c8bbd8 | 3125 | { |
a22e235f AP |
3126 | #ifdef CONFIG_TESTING_OPTIONS |
3127 | if (hapd->conf->own_ie_override) { | |
3128 | wpa_printf(MSG_DEBUG, "OWE: Using IE override"); | |
3129 | *reason = WLAN_STATUS_SUCCESS; | |
3130 | return wpa_auth_write_assoc_resp_owe(sta->wpa_sm, owe_buf, | |
3131 | owe_buf_len, NULL, 0); | |
3132 | } | |
3133 | #endif /* CONFIG_TESTING_OPTIONS */ | |
3134 | ||
cd483be2 AP |
3135 | if (wpa_auth_sta_get_pmksa(sta->wpa_sm)) { |
3136 | wpa_printf(MSG_DEBUG, "OWE: Using PMKSA caching"); | |
3137 | owe_buf = wpa_auth_write_assoc_resp_owe(sta->wpa_sm, owe_buf, | |
3138 | owe_buf_len, NULL, 0); | |
3139 | *reason = WLAN_STATUS_SUCCESS; | |
3140 | return owe_buf; | |
3141 | } | |
3142 | ||
33c8bbd8 AKP |
3143 | *reason = owe_process_assoc_req(hapd, sta, owe_dh, owe_dh_len); |
3144 | if (*reason != WLAN_STATUS_SUCCESS) | |
3145 | return NULL; | |
33c8bbd8 | 3146 | |
af65ef28 AP |
3147 | owe_buf = wpa_auth_write_assoc_resp_owe(sta->wpa_sm, owe_buf, |
3148 | owe_buf_len, NULL, 0); | |
3149 | ||
f5701cc6 | 3150 | if (sta->owe_ecdh && owe_buf) { |
759da93a AP |
3151 | struct wpabuf *pub; |
3152 | ||
3153 | pub = crypto_ecdh_get_pubkey(sta->owe_ecdh, 0); | |
3154 | if (!pub) { | |
3155 | *reason = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3156 | return owe_buf; | |
3157 | } | |
3158 | ||
3159 | /* OWE Diffie-Hellman Parameter element */ | |
3160 | *owe_buf++ = WLAN_EID_EXTENSION; /* Element ID */ | |
3161 | *owe_buf++ = 1 + 2 + wpabuf_len(pub); /* Length */ | |
3162 | *owe_buf++ = WLAN_EID_EXT_OWE_DH_PARAM; /* Element ID Extension | |
3163 | */ | |
3164 | WPA_PUT_LE16(owe_buf, sta->owe_group); | |
3165 | owe_buf += 2; | |
3166 | os_memcpy(owe_buf, wpabuf_head(pub), wpabuf_len(pub)); | |
3167 | owe_buf += wpabuf_len(pub); | |
3168 | wpabuf_free(pub); | |
3169 | } | |
3170 | ||
33c8bbd8 AKP |
3171 | return owe_buf; |
3172 | } | |
3173 | #endif /* CONFIG_OWE */ | |
3174 | ||
3175 | ||
91d91abf JM |
3176 | #ifdef CONFIG_FILS |
3177 | ||
3178 | void fils_hlp_finish_assoc(struct hostapd_data *hapd, struct sta_info *sta) | |
3179 | { | |
3180 | u16 reply_res; | |
3181 | ||
3182 | wpa_printf(MSG_DEBUG, "FILS: Finish association with " MACSTR, | |
3183 | MAC2STR(sta->addr)); | |
3184 | eloop_cancel_timeout(fils_hlp_timeout, hapd, sta); | |
3185 | if (!sta->fils_pending_assoc_req) | |
3186 | return; | |
3187 | reply_res = send_assoc_resp(hapd, sta, sta->addr, WLAN_STATUS_SUCCESS, | |
3188 | sta->fils_pending_assoc_is_reassoc, | |
3189 | sta->fils_pending_assoc_req, | |
3190 | sta->fils_pending_assoc_req_len); | |
3191 | os_free(sta->fils_pending_assoc_req); | |
3192 | sta->fils_pending_assoc_req = NULL; | |
3193 | sta->fils_pending_assoc_req_len = 0; | |
3194 | wpabuf_free(sta->fils_hlp_resp); | |
3195 | sta->fils_hlp_resp = NULL; | |
3196 | wpabuf_free(sta->hlp_dhcp_discover); | |
3197 | sta->hlp_dhcp_discover = NULL; | |
3198 | ||
3199 | /* | |
fd35ed5b IP |
3200 | * Remove the station in case transmission of a success response fails. |
3201 | * At this point the station was already added associated to the driver. | |
91d91abf | 3202 | */ |
fd35ed5b | 3203 | if (reply_res != WLAN_STATUS_SUCCESS) |
91d91abf | 3204 | hostapd_drv_sta_remove(hapd, sta->addr); |
91d91abf JM |
3205 | } |
3206 | ||
3207 | ||
3208 | void fils_hlp_timeout(void *eloop_ctx, void *eloop_data) | |
3209 | { | |
3210 | struct hostapd_data *hapd = eloop_ctx; | |
3211 | struct sta_info *sta = eloop_data; | |
3212 | ||
3213 | wpa_printf(MSG_DEBUG, | |
3214 | "FILS: HLP response timeout - continue with association response for " | |
3215 | MACSTR, MAC2STR(sta->addr)); | |
8b5ddda5 JM |
3216 | if (sta->fils_drv_assoc_finish) |
3217 | hostapd_notify_assoc_fils_finish(hapd, sta); | |
3218 | else | |
3219 | fils_hlp_finish_assoc(hapd, sta); | |
91d91abf JM |
3220 | } |
3221 | ||
3222 | #endif /* CONFIG_FILS */ | |
3223 | ||
3224 | ||
5586f500 | 3225 | static void handle_assoc(struct hostapd_data *hapd, |
b57e086c JM |
3226 | const struct ieee80211_mgmt *mgmt, size_t len, |
3227 | int reassoc) | |
5586f500 | 3228 | { |
38cb0a2d | 3229 | u16 capab_info, listen_interval, seq_ctrl, fc; |
bb598c3b | 3230 | u16 resp = WLAN_STATUS_SUCCESS, reply_res; |
b57e086c | 3231 | const u8 *pos; |
5586f500 JM |
3232 | int left, i; |
3233 | struct sta_info *sta; | |
78815f3d | 3234 | u8 *tmp = NULL; |
53d17144 DL |
3235 | struct hostapd_sta_wpa_psk_short *psk = NULL; |
3236 | char *identity = NULL; | |
3237 | char *radius_cui = NULL; | |
91d91abf JM |
3238 | #ifdef CONFIG_FILS |
3239 | int delay_assoc = 0; | |
3240 | #endif /* CONFIG_FILS */ | |
5586f500 JM |
3241 | |
3242 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) : | |
3243 | sizeof(mgmt->u.assoc_req))) { | |
61323e70 JM |
3244 | wpa_printf(MSG_INFO, "handle_assoc(reassoc=%d) - too short payload (len=%lu)", |
3245 | reassoc, (unsigned long) len); | |
5586f500 JM |
3246 | return; |
3247 | } | |
3248 | ||
c2aff6b1 JB |
3249 | #ifdef CONFIG_TESTING_OPTIONS |
3250 | if (reassoc) { | |
06df2aa6 | 3251 | if (hapd->iconf->ignore_reassoc_probability > 0.0 && |
c2aff6b1 JB |
3252 | drand48() < hapd->iconf->ignore_reassoc_probability) { |
3253 | wpa_printf(MSG_INFO, | |
3254 | "TESTING: ignoring reassoc request from " | |
3255 | MACSTR, MAC2STR(mgmt->sa)); | |
3256 | return; | |
3257 | } | |
3258 | } else { | |
06df2aa6 | 3259 | if (hapd->iconf->ignore_assoc_probability > 0.0 && |
c2aff6b1 JB |
3260 | drand48() < hapd->iconf->ignore_assoc_probability) { |
3261 | wpa_printf(MSG_INFO, | |
3262 | "TESTING: ignoring assoc request from " | |
3263 | MACSTR, MAC2STR(mgmt->sa)); | |
3264 | return; | |
3265 | } | |
3266 | } | |
3267 | #endif /* CONFIG_TESTING_OPTIONS */ | |
3268 | ||
38cb0a2d IP |
3269 | fc = le_to_host16(mgmt->frame_control); |
3270 | seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
3271 | ||
5586f500 JM |
3272 | if (reassoc) { |
3273 | capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info); | |
3274 | listen_interval = le_to_host16( | |
3275 | mgmt->u.reassoc_req.listen_interval); | |
3276 | wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR | |
3277 | " capab_info=0x%02x listen_interval=%d current_ap=" | |
38cb0a2d | 3278 | MACSTR " seq_ctrl=0x%x%s", |
5586f500 | 3279 | MAC2STR(mgmt->sa), capab_info, listen_interval, |
38cb0a2d IP |
3280 | MAC2STR(mgmt->u.reassoc_req.current_ap), |
3281 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
3282 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req)); |
3283 | pos = mgmt->u.reassoc_req.variable; | |
3284 | } else { | |
3285 | capab_info = le_to_host16(mgmt->u.assoc_req.capab_info); | |
3286 | listen_interval = le_to_host16( | |
3287 | mgmt->u.assoc_req.listen_interval); | |
3288 | wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR | |
38cb0a2d IP |
3289 | " capab_info=0x%02x listen_interval=%d " |
3290 | "seq_ctrl=0x%x%s", | |
3291 | MAC2STR(mgmt->sa), capab_info, listen_interval, | |
3292 | seq_ctrl, (fc & WLAN_FC_RETRY) ? " retry" : ""); | |
5586f500 JM |
3293 | left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req)); |
3294 | pos = mgmt->u.assoc_req.variable; | |
3295 | } | |
3296 | ||
3297 | sta = ap_get_sta(hapd, mgmt->sa); | |
4ec1fd8e | 3298 | #ifdef CONFIG_IEEE80211R_AP |
5586f500 JM |
3299 | if (sta && sta->auth_alg == WLAN_AUTH_FT && |
3300 | (sta->flags & WLAN_STA_AUTH) == 0) { | |
3301 | wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate " | |
3302 | "prior to authentication since it is using " | |
3303 | "over-the-DS FT", MAC2STR(mgmt->sa)); | |
bb598c3b AB |
3304 | |
3305 | /* | |
3306 | * Mark station as authenticated, to avoid adding station | |
3307 | * entry in the driver as associated and not authenticated | |
3308 | */ | |
3309 | sta->flags |= WLAN_STA_AUTH; | |
5586f500 | 3310 | } else |
4ec1fd8e | 3311 | #endif /* CONFIG_IEEE80211R_AP */ |
5586f500 | 3312 | if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { |
05e5e615 DL |
3313 | if (hapd->iface->current_mode && |
3314 | hapd->iface->current_mode->mode == | |
3315 | HOSTAPD_MODE_IEEE80211AD) { | |
53d17144 DL |
3316 | int acl_res; |
3317 | u32 session_timeout, acct_interim_interval; | |
3318 | struct vlan_description vlan_id; | |
3319 | ||
3320 | acl_res = ieee802_11_allowed_address( | |
3321 | hapd, mgmt->sa, (const u8 *) mgmt, len, | |
3322 | &session_timeout, &acct_interim_interval, | |
92eb00ae | 3323 | &vlan_id, &psk, &identity, &radius_cui, 0); |
53d17144 | 3324 | if (acl_res == HOSTAPD_ACL_REJECT) { |
92eb00ae T |
3325 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, |
3326 | "Ignore Association Request frame from " | |
3327 | MACSTR " due to ACL reject", | |
3328 | MAC2STR(mgmt->sa)); | |
53d17144 DL |
3329 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
3330 | goto fail; | |
3331 | } | |
3332 | if (acl_res == HOSTAPD_ACL_PENDING) | |
3333 | return; | |
3334 | ||
05e5e615 DL |
3335 | /* DMG/IEEE 802.11ad does not use authentication. |
3336 | * Allocate sta entry upon association. */ | |
3337 | sta = ap_sta_add(hapd, mgmt->sa); | |
3338 | if (!sta) { | |
3339 | hostapd_logger(hapd, mgmt->sa, | |
3340 | HOSTAPD_MODULE_IEEE80211, | |
3341 | HOSTAPD_LEVEL_INFO, | |
3342 | "Failed to add STA"); | |
3343 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
3344 | goto fail; | |
3345 | } | |
3346 | ||
53d17144 DL |
3347 | acl_res = ieee802_11_set_radius_info( |
3348 | hapd, sta, acl_res, session_timeout, | |
3349 | acct_interim_interval, &vlan_id, &psk, | |
3350 | &identity, &radius_cui); | |
3351 | if (acl_res) { | |
3352 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3353 | goto fail; | |
3354 | } | |
3355 | ||
05e5e615 DL |
3356 | hostapd_logger(hapd, sta->addr, |
3357 | HOSTAPD_MODULE_IEEE80211, | |
3358 | HOSTAPD_LEVEL_DEBUG, | |
3359 | "Skip authentication for DMG/IEEE 802.11ad"); | |
3360 | sta->flags |= WLAN_STA_AUTH; | |
3361 | wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH); | |
3362 | sta->auth_alg = WLAN_AUTH_OPEN; | |
3363 | } else { | |
3364 | hostapd_logger(hapd, mgmt->sa, | |
3365 | HOSTAPD_MODULE_IEEE80211, | |
3366 | HOSTAPD_LEVEL_INFO, | |
3367 | "Station tried to associate before authentication (aid=%d flags=0x%x)", | |
3368 | sta ? sta->aid : -1, | |
3369 | sta ? sta->flags : 0); | |
3370 | send_deauth(hapd, mgmt->sa, | |
3371 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA); | |
3372 | return; | |
3373 | } | |
5586f500 JM |
3374 | } |
3375 | ||
38cb0a2d IP |
3376 | if ((fc & WLAN_FC_RETRY) && |
3377 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
3378 | sta->last_seq_ctrl == seq_ctrl && | |
fa67debf JM |
3379 | sta->last_subtype == (reassoc ? WLAN_FC_STYPE_REASSOC_REQ : |
3380 | WLAN_FC_STYPE_ASSOC_REQ)) { | |
38cb0a2d IP |
3381 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
3382 | HOSTAPD_LEVEL_DEBUG, | |
3383 | "Drop repeated association frame seq_ctrl=0x%x", | |
3384 | seq_ctrl); | |
3385 | return; | |
3386 | } | |
3387 | sta->last_seq_ctrl = seq_ctrl; | |
3388 | sta->last_subtype = reassoc ? WLAN_FC_STYPE_REASSOC_REQ : | |
3389 | WLAN_FC_STYPE_ASSOC_REQ; | |
3390 | ||
5586f500 | 3391 | if (hapd->tkip_countermeasures) { |
fe12ae77 | 3392 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
5586f500 JM |
3393 | goto fail; |
3394 | } | |
3395 | ||
3396 | if (listen_interval > hapd->conf->max_listen_interval) { | |
3397 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
3398 | HOSTAPD_LEVEL_DEBUG, | |
3399 | "Too large Listen Interval (%d)", | |
3400 | listen_interval); | |
3401 | resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE; | |
3402 | goto fail; | |
3403 | } | |
3404 | ||
fb9a1c3e AS |
3405 | #ifdef CONFIG_MBO |
3406 | if (hapd->conf->mbo_enabled && hapd->mbo_assoc_disallow) { | |
3407 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
3408 | goto fail; | |
3409 | } | |
3410 | #endif /* CONFIG_MBO */ | |
3411 | ||
629e1804 DS |
3412 | /* |
3413 | * sta->capability is used in check_assoc_ies() for RRM enabled | |
3414 | * capability element. | |
3415 | */ | |
3416 | sta->capability = capab_info; | |
3417 | ||
78815f3d JM |
3418 | #ifdef CONFIG_FILS |
3419 | if (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
3420 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
3421 | sta->auth_alg == WLAN_AUTH_FILS_PK) { | |
1489fcf8 JM |
3422 | int res; |
3423 | ||
78815f3d JM |
3424 | /* The end of the payload is encrypted. Need to decrypt it |
3425 | * before parsing. */ | |
3426 | ||
a1f11e34 | 3427 | tmp = os_memdup(pos, left); |
78815f3d JM |
3428 | if (!tmp) { |
3429 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
3430 | goto fail; | |
3431 | } | |
78815f3d | 3432 | |
1489fcf8 JM |
3433 | res = fils_decrypt_assoc(sta->wpa_sm, sta->fils_session, mgmt, |
3434 | len, tmp, left); | |
3435 | if (res < 0) { | |
78815f3d JM |
3436 | resp = WLAN_STATUS_UNSPECIFIED_FAILURE; |
3437 | goto fail; | |
3438 | } | |
3439 | pos = tmp; | |
1489fcf8 | 3440 | left = res; |
78815f3d JM |
3441 | } |
3442 | #endif /* CONFIG_FILS */ | |
3443 | ||
5586f500 JM |
3444 | /* followed by SSID and Supported rates; and HT capabilities if 802.11n |
3445 | * is used */ | |
3446 | resp = check_assoc_ies(hapd, sta, pos, left, reassoc); | |
3447 | if (resp != WLAN_STATUS_SUCCESS) | |
3448 | goto fail; | |
3449 | ||
3450 | if (hostapd_get_aid(hapd, sta) < 0) { | |
3451 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
3452 | HOSTAPD_LEVEL_INFO, "No room for more AIDs"); | |
3453 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; | |
3454 | goto fail; | |
3455 | } | |
3456 | ||
5586f500 JM |
3457 | sta->listen_interval = listen_interval; |
3458 | ||
28d12641 AKP |
3459 | if (hapd->iface->current_mode && |
3460 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) | |
6fc6879b JM |
3461 | sta->flags |= WLAN_STA_NONERP; |
3462 | for (i = 0; i < sta->supported_rates_len; i++) { | |
3463 | if ((sta->supported_rates[i] & 0x7f) > 22) { | |
3464 | sta->flags &= ~WLAN_STA_NONERP; | |
3465 | break; | |
3466 | } | |
3467 | } | |
3468 | if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) { | |
3469 | sta->nonerp_set = 1; | |
3470 | hapd->iface->num_sta_non_erp++; | |
3471 | if (hapd->iface->num_sta_non_erp == 1) | |
3472 | ieee802_11_set_beacons(hapd->iface); | |
3473 | } | |
3474 | ||
3475 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) && | |
3476 | !sta->no_short_slot_time_set) { | |
3477 | sta->no_short_slot_time_set = 1; | |
3478 | hapd->iface->num_sta_no_short_slot_time++; | |
28d12641 AKP |
3479 | if (hapd->iface->current_mode && |
3480 | hapd->iface->current_mode->mode == | |
6fc6879b JM |
3481 | HOSTAPD_MODE_IEEE80211G && |
3482 | hapd->iface->num_sta_no_short_slot_time == 1) | |
3483 | ieee802_11_set_beacons(hapd->iface); | |
3484 | } | |
3485 | ||
3486 | if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
3487 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
3488 | else | |
3489 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
3490 | ||
3491 | if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
3492 | !sta->no_short_preamble_set) { | |
3493 | sta->no_short_preamble_set = 1; | |
3494 | hapd->iface->num_sta_no_short_preamble++; | |
28d12641 AKP |
3495 | if (hapd->iface->current_mode && |
3496 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G | |
6fc6879b JM |
3497 | && hapd->iface->num_sta_no_short_preamble == 1) |
3498 | ieee802_11_set_beacons(hapd->iface); | |
3499 | } | |
3500 | ||
d45354be | 3501 | #ifdef CONFIG_IEEE80211N |
5586f500 | 3502 | update_ht_state(hapd, sta); |
d45354be | 3503 | #endif /* CONFIG_IEEE80211N */ |
de9289c8 | 3504 | |
6fc6879b JM |
3505 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, |
3506 | HOSTAPD_LEVEL_DEBUG, | |
3507 | "association OK (aid %d)", sta->aid); | |
3508 | /* Station will be marked associated, after it acknowledges AssocResp | |
3509 | */ | |
b8281964 | 3510 | sta->flags |= WLAN_STA_ASSOC_REQ_OK; |
6fc6879b | 3511 | |
6f5c8dbd JM |
3512 | #ifdef CONFIG_IEEE80211W |
3513 | if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) { | |
3514 | wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out " | |
3515 | "SA Query procedure", reassoc ? "re" : ""); | |
3516 | /* TODO: Send a protected Disassociate frame to the STA using | |
3517 | * the old key and Reason Code "Previous Authentication no | |
3518 | * longer valid". Make sure this is only sent protected since | |
3519 | * unprotected frame would be received by the STA that is now | |
3520 | * trying to associate. | |
3521 | */ | |
3522 | } | |
3523 | #endif /* CONFIG_IEEE80211W */ | |
3524 | ||
6fc6879b JM |
3525 | /* Make sure that the previously registered inactivity timer will not |
3526 | * remove the STA immediately. */ | |
3527 | sta->timeout_next = STA_NULLFUNC; | |
3528 | ||
04059ab8 DG |
3529 | #ifdef CONFIG_TAXONOMY |
3530 | taxonomy_sta_info_assoc_req(hapd, sta, pos, left); | |
3531 | #endif /* CONFIG_TAXONOMY */ | |
3532 | ||
1f0fdaf0 JM |
3533 | sta->pending_wds_enable = 0; |
3534 | ||
5208160b JM |
3535 | #ifdef CONFIG_FILS |
3536 | if (sta->auth_alg == WLAN_AUTH_FILS_SK || | |
3537 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
91d91abf JM |
3538 | sta->auth_alg == WLAN_AUTH_FILS_PK) { |
3539 | if (fils_process_hlp(hapd, sta, pos, left) > 0) | |
3540 | delay_assoc = 1; | |
3541 | } | |
5208160b JM |
3542 | #endif /* CONFIG_FILS */ |
3543 | ||
6fc6879b | 3544 | fail: |
53d17144 DL |
3545 | os_free(identity); |
3546 | os_free(radius_cui); | |
3547 | hostapd_free_psk_list(psk); | |
3548 | ||
3f81ac07 AO |
3549 | /* |
3550 | * In case of a successful response, add the station to the driver. | |
3551 | * Otherwise, the kernel may ignore Data frames before we process the | |
3552 | * ACK frame (TX status). In case of a failure, this station will be | |
3553 | * removed. | |
3554 | * | |
3555 | * Note that this is not compliant with the IEEE 802.11 standard that | |
3556 | * states that a non-AP station should transition into the | |
3557 | * authenticated/associated state only after the station acknowledges | |
3558 | * the (Re)Association Response frame. However, still do this as: | |
3559 | * | |
3560 | * 1. In case the station does not acknowledge the (Re)Association | |
3561 | * Response frame, it will be removed. | |
3562 | * 2. Data frames will be dropped in the kernel until the station is | |
3563 | * set into authorized state, and there are no significant known | |
3564 | * issues with processing other non-Data Class 3 frames during this | |
3565 | * window. | |
3566 | */ | |
05e5e615 | 3567 | if (resp == WLAN_STATUS_SUCCESS && sta && add_associated_sta(hapd, sta)) |
3f81ac07 AO |
3568 | resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; |
3569 | ||
91d91abf | 3570 | #ifdef CONFIG_FILS |
17adac9e JM |
3571 | if (sta && delay_assoc && resp == WLAN_STATUS_SUCCESS && |
3572 | eloop_is_timeout_registered(fils_hlp_timeout, hapd, sta) && | |
3573 | sta->fils_pending_assoc_req) { | |
3574 | /* Do not reschedule fils_hlp_timeout in case the station | |
3575 | * retransmits (Re)Association Request frame while waiting for | |
3576 | * the previously started FILS HLP wait, so that the timeout can | |
3577 | * be determined from the first pending attempt. */ | |
3578 | wpa_printf(MSG_DEBUG, | |
3579 | "FILS: Continue waiting for HLP processing before sending (Re)Association Response frame to " | |
3580 | MACSTR, MAC2STR(sta->addr)); | |
3581 | os_free(tmp); | |
3582 | return; | |
3583 | } | |
91d91abf JM |
3584 | if (sta) { |
3585 | eloop_cancel_timeout(fils_hlp_timeout, hapd, sta); | |
3586 | os_free(sta->fils_pending_assoc_req); | |
3587 | sta->fils_pending_assoc_req = NULL; | |
3588 | sta->fils_pending_assoc_req_len = 0; | |
3589 | wpabuf_free(sta->fils_hlp_resp); | |
3590 | sta->fils_hlp_resp = NULL; | |
3591 | } | |
3592 | if (sta && delay_assoc && resp == WLAN_STATUS_SUCCESS) { | |
3593 | sta->fils_pending_assoc_req = tmp; | |
3594 | sta->fils_pending_assoc_req_len = left; | |
3595 | sta->fils_pending_assoc_is_reassoc = reassoc; | |
8b5ddda5 | 3596 | sta->fils_drv_assoc_finish = 0; |
91d91abf JM |
3597 | wpa_printf(MSG_DEBUG, |
3598 | "FILS: Waiting for HLP processing before sending (Re)Association Response frame to " | |
3599 | MACSTR, MAC2STR(sta->addr)); | |
3600 | eloop_cancel_timeout(fils_hlp_timeout, hapd, sta); | |
3601 | eloop_register_timeout(0, hapd->conf->fils_hlp_wait_time * 1024, | |
3602 | fils_hlp_timeout, hapd, sta); | |
3603 | return; | |
3604 | } | |
3605 | #endif /* CONFIG_FILS */ | |
3606 | ||
05e5e615 DL |
3607 | reply_res = send_assoc_resp(hapd, sta, mgmt->sa, resp, reassoc, pos, |
3608 | left); | |
78815f3d | 3609 | os_free(tmp); |
3f81ac07 AO |
3610 | |
3611 | /* | |
3612 | * Remove the station in case tranmission of a success response fails | |
3613 | * (the STA was added associated to the driver) or if the station was | |
3614 | * previously added unassociated. | |
3615 | */ | |
05e5e615 DL |
3616 | if (sta && ((reply_res != WLAN_STATUS_SUCCESS && |
3617 | resp == WLAN_STATUS_SUCCESS) || sta->added_unassoc)) { | |
bb598c3b AB |
3618 | hostapd_drv_sta_remove(hapd, sta->addr); |
3619 | sta->added_unassoc = 0; | |
3620 | } | |
6fc6879b JM |
3621 | } |
3622 | ||
3623 | ||
6fc6879b | 3624 | static void handle_disassoc(struct hostapd_data *hapd, |
f8b1f695 | 3625 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
3626 | { |
3627 | struct sta_info *sta; | |
3628 | ||
3629 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) { | |
61323e70 JM |
3630 | wpa_printf(MSG_INFO, "handle_disassoc - too short payload (len=%lu)", |
3631 | (unsigned long) len); | |
6fc6879b JM |
3632 | return; |
3633 | } | |
3634 | ||
3635 | wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d", | |
3636 | MAC2STR(mgmt->sa), | |
3637 | le_to_host16(mgmt->u.disassoc.reason_code)); | |
3638 | ||
6fc6879b JM |
3639 | sta = ap_get_sta(hapd, mgmt->sa); |
3640 | if (sta == NULL) { | |
61323e70 JM |
3641 | wpa_printf(MSG_INFO, "Station " MACSTR " trying to disassociate, but it is not associated", |
3642 | MAC2STR(mgmt->sa)); | |
6fc6879b JM |
3643 | return; |
3644 | } | |
3645 | ||
ae055af4 | 3646 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 3647 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 | 3648 | sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK); |
6fc6879b JM |
3649 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); |
3650 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
3651 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
3652 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
3653 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
3654 | /* Stop Accounting and IEEE 802.1X sessions, but leave the STA | |
3655 | * authenticated. */ | |
3656 | accounting_sta_stop(hapd, sta); | |
d7c3347f | 3657 | ieee802_1x_free_station(hapd, sta); |
7d597d46 | 3658 | if (sta->ipaddr) |
ed4ddb6d | 3659 | hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr); |
bd00c431 | 3660 | ap_sta_ip6addr_del(hapd, sta); |
51e2a27a | 3661 | hostapd_drv_sta_remove(hapd, sta->addr); |
bb598c3b | 3662 | sta->added_unassoc = 0; |
6fc6879b JM |
3663 | |
3664 | if (sta->timeout_next == STA_NULLFUNC || | |
3665 | sta->timeout_next == STA_DISASSOC) { | |
3666 | sta->timeout_next = STA_DEAUTH; | |
3667 | eloop_cancel_timeout(ap_handle_timer, hapd, sta); | |
3668 | eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer, | |
3669 | hapd, sta); | |
3670 | } | |
3671 | ||
3672 | mlme_disassociate_indication( | |
3673 | hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code)); | |
05e5e615 DL |
3674 | |
3675 | /* DMG/IEEE 802.11ad does not use deauthication. Deallocate sta upon | |
3676 | * disassociation. */ | |
3677 | if (hapd->iface->current_mode && | |
3678 | hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) { | |
3679 | sta->flags &= ~WLAN_STA_AUTH; | |
3680 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); | |
3681 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
3682 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
3683 | ap_free_sta(hapd, sta); | |
3684 | } | |
6fc6879b JM |
3685 | } |
3686 | ||
3687 | ||
3688 | static void handle_deauth(struct hostapd_data *hapd, | |
f8b1f695 | 3689 | const struct ieee80211_mgmt *mgmt, size_t len) |
6fc6879b JM |
3690 | { |
3691 | struct sta_info *sta; | |
3692 | ||
3693 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) { | |
3ec1e902 JM |
3694 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short " |
3695 | "payload (len=%lu)", (unsigned long) len); | |
6fc6879b JM |
3696 | return; |
3697 | } | |
3698 | ||
3ec1e902 | 3699 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR |
24d75245 BG |
3700 | " reason_code=%d", |
3701 | MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code)); | |
6fc6879b | 3702 | |
6fc6879b JM |
3703 | sta = ap_get_sta(hapd, mgmt->sa); |
3704 | if (sta == NULL) { | |
3ec1e902 JM |
3705 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying " |
3706 | "to deauthenticate, but it is not authenticated", | |
24d75245 | 3707 | MAC2STR(mgmt->sa)); |
6fc6879b JM |
3708 | return; |
3709 | } | |
3710 | ||
ae055af4 | 3711 | ap_sta_set_authorized(hapd, sta, 0); |
38cb0a2d | 3712 | sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ; |
b8281964 JM |
3713 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | |
3714 | WLAN_STA_ASSOC_REQ_OK); | |
6fc6879b JM |
3715 | wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH); |
3716 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
3717 | HOSTAPD_LEVEL_DEBUG, "deauthenticated"); | |
3718 | mlme_deauthenticate_indication( | |
3719 | hapd, sta, le_to_host16(mgmt->u.deauth.reason_code)); | |
3720 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
3721 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
3722 | ap_free_sta(hapd, sta); | |
3723 | } | |
3724 | ||
3725 | ||
3726 | static void handle_beacon(struct hostapd_data *hapd, | |
b57e086c | 3727 | const struct ieee80211_mgmt *mgmt, size_t len, |
6fc6879b JM |
3728 | struct hostapd_frame_info *fi) |
3729 | { | |
3730 | struct ieee802_11_elems elems; | |
3731 | ||
3732 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) { | |
61323e70 JM |
3733 | wpa_printf(MSG_INFO, "handle_beacon - too short payload (len=%lu)", |
3734 | (unsigned long) len); | |
6fc6879b JM |
3735 | return; |
3736 | } | |
3737 | ||
3d536eb4 | 3738 | (void) ieee802_11_parse_elems(mgmt->u.beacon.variable, |
6fc6879b JM |
3739 | len - (IEEE80211_HDRLEN + |
3740 | sizeof(mgmt->u.beacon)), &elems, | |
3741 | 0); | |
3742 | ||
6fc6879b JM |
3743 | ap_list_process_beacon(hapd->iface, mgmt, &elems, fi); |
3744 | } | |
3745 | ||
3746 | ||
5d22a1d5 | 3747 | #ifdef CONFIG_IEEE80211W |
88b4b424 | 3748 | |
912b34f0 JM |
3749 | static int hostapd_sa_query_action(struct hostapd_data *hapd, |
3750 | const struct ieee80211_mgmt *mgmt, | |
3751 | size_t len) | |
5d22a1d5 | 3752 | { |
b57e086c | 3753 | const u8 *end; |
5d22a1d5 | 3754 | |
93b76319 JM |
3755 | end = mgmt->u.action.u.sa_query_resp.trans_id + |
3756 | WLAN_SA_QUERY_TR_ID_LEN; | |
5d22a1d5 | 3757 | if (((u8 *) mgmt) + len < end) { |
93b76319 | 3758 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action " |
5d22a1d5 | 3759 | "frame (len=%lu)", (unsigned long) len); |
912b34f0 | 3760 | return 0; |
5d22a1d5 JM |
3761 | } |
3762 | ||
f9da7505 | 3763 | ieee802_11_sa_query_action(hapd, mgmt, len); |
912b34f0 | 3764 | return 1; |
5d22a1d5 | 3765 | } |
5d22a1d5 JM |
3766 | |
3767 | ||
c4e281fd JM |
3768 | static int robust_action_frame(u8 category) |
3769 | { | |
3770 | return category != WLAN_ACTION_PUBLIC && | |
3771 | category != WLAN_ACTION_HT; | |
3772 | } | |
9f64b827 | 3773 | #endif /* CONFIG_IEEE80211W */ |
c4e281fd JM |
3774 | |
3775 | ||
912b34f0 | 3776 | static int handle_action(struct hostapd_data *hapd, |
c5cc7a59 JM |
3777 | const struct ieee80211_mgmt *mgmt, size_t len, |
3778 | unsigned int freq) | |
6fc6879b | 3779 | { |
c4e281fd | 3780 | struct sta_info *sta; |
e0785ebb | 3781 | u8 *action __maybe_unused; |
c4e281fd | 3782 | |
e0785ebb | 3783 | if (len < IEEE80211_HDRLEN + 2 + 1) { |
6fc6879b JM |
3784 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
3785 | HOSTAPD_LEVEL_DEBUG, | |
3786 | "handle_action - too short payload (len=%lu)", | |
3787 | (unsigned long) len); | |
912b34f0 | 3788 | return 0; |
6fc6879b JM |
3789 | } |
3790 | ||
e0785ebb JM |
3791 | action = (u8 *) &mgmt->u.action.u; |
3792 | wpa_printf(MSG_DEBUG, "RX_ACTION category %u action %u sa " MACSTR | |
3793 | " da " MACSTR " len %d freq %u", | |
3794 | mgmt->u.action.category, *action, | |
3795 | MAC2STR(mgmt->sa), MAC2STR(mgmt->da), (int) len, freq); | |
3796 | ||
3797 | sta = ap_get_sta(hapd, mgmt->sa); | |
3798 | ||
c79938a5 JM |
3799 | if (mgmt->u.action.category != WLAN_ACTION_PUBLIC && |
3800 | (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { | |
3801 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action " | |
3802 | "frame (category=%u) from unassociated STA " MACSTR, | |
ae26d302 | 3803 | mgmt->u.action.category, MAC2STR(mgmt->sa)); |
912b34f0 | 3804 | return 0; |
c79938a5 JM |
3805 | } |
3806 | ||
c4e281fd JM |
3807 | #ifdef CONFIG_IEEE80211W |
3808 | if (sta && (sta->flags & WLAN_STA_MFP) && | |
7b2c42f8 JM |
3809 | !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP)) && |
3810 | robust_action_frame(mgmt->u.action.category)) { | |
c4e281fd JM |
3811 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
3812 | HOSTAPD_LEVEL_DEBUG, | |
3813 | "Dropped unprotected Robust Action frame from " | |
3814 | "an MFP STA"); | |
912b34f0 | 3815 | return 0; |
c4e281fd JM |
3816 | } |
3817 | #endif /* CONFIG_IEEE80211W */ | |
3818 | ||
38cb0a2d IP |
3819 | if (sta) { |
3820 | u16 fc = le_to_host16(mgmt->frame_control); | |
3821 | u16 seq_ctrl = le_to_host16(mgmt->seq_ctrl); | |
3822 | ||
3823 | if ((fc & WLAN_FC_RETRY) && | |
3824 | sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ && | |
3825 | sta->last_seq_ctrl == seq_ctrl && | |
3826 | sta->last_subtype == WLAN_FC_STYPE_ACTION) { | |
3827 | hostapd_logger(hapd, sta->addr, | |
3828 | HOSTAPD_MODULE_IEEE80211, | |
3829 | HOSTAPD_LEVEL_DEBUG, | |
3830 | "Drop repeated action frame seq_ctrl=0x%x", | |
3831 | seq_ctrl); | |
3832 | return 1; | |
3833 | } | |
3834 | ||
3835 | sta->last_seq_ctrl = seq_ctrl; | |
3836 | sta->last_subtype = WLAN_FC_STYPE_ACTION; | |
3837 | } | |
3838 | ||
6fc6879b | 3839 | switch (mgmt->u.action.category) { |
4ec1fd8e | 3840 | #ifdef CONFIG_IEEE80211R_AP |
6fc6879b | 3841 | case WLAN_ACTION_FT: |
d6c6b1fb JM |
3842 | if (!sta || |
3843 | wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action, | |
6fc6879b JM |
3844 | len - IEEE80211_HDRLEN)) |
3845 | break; | |
912b34f0 | 3846 | return 1; |
4ec1fd8e | 3847 | #endif /* CONFIG_IEEE80211R_AP */ |
c2a71408 | 3848 | case WLAN_ACTION_WMM: |
3ae0800c | 3849 | hostapd_wmm_action(hapd, mgmt, len); |
912b34f0 | 3850 | return 1; |
5d22a1d5 | 3851 | #ifdef CONFIG_IEEE80211W |
93b76319 | 3852 | case WLAN_ACTION_SA_QUERY: |
912b34f0 | 3853 | return hostapd_sa_query_action(hapd, mgmt, len); |
5d22a1d5 | 3854 | #endif /* CONFIG_IEEE80211W */ |
b5bf84ba | 3855 | #ifdef CONFIG_WNM_AP |
c79938a5 | 3856 | case WLAN_ACTION_WNM: |
dbfb8e82 JM |
3857 | ieee802_11_rx_wnm_action_ap(hapd, mgmt, len); |
3858 | return 1; | |
b5bf84ba | 3859 | #endif /* CONFIG_WNM_AP */ |
037378ff AN |
3860 | #ifdef CONFIG_FST |
3861 | case WLAN_ACTION_FST: | |
3862 | if (hapd->iface->fst) | |
3863 | fst_rx_action(hapd->iface->fst, mgmt, len); | |
94edea89 JM |
3864 | else |
3865 | wpa_printf(MSG_DEBUG, | |
3866 | "FST: Ignore FST Action frame - no FST attached"); | |
037378ff AN |
3867 | return 1; |
3868 | #endif /* CONFIG_FST */ | |
c706d5aa | 3869 | case WLAN_ACTION_PUBLIC: |
5ce00d09 | 3870 | case WLAN_ACTION_PROTECTED_DUAL: |
587d60d2 | 3871 | #ifdef CONFIG_IEEE80211N |
fd66aa63 JM |
3872 | if (len >= IEEE80211_HDRLEN + 2 && |
3873 | mgmt->u.action.u.public_action.action == | |
587d60d2 | 3874 | WLAN_PA_20_40_BSS_COEX) { |
587d60d2 | 3875 | hostapd_2040_coex_action(hapd, mgmt, len); |
115d5e22 | 3876 | return 1; |
587d60d2 PX |
3877 | } |
3878 | #endif /* CONFIG_IEEE80211N */ | |
9c2b8204 JM |
3879 | #ifdef CONFIG_DPP |
3880 | if (len >= IEEE80211_HDRLEN + 6 && | |
3881 | mgmt->u.action.u.vs_public_action.action == | |
3882 | WLAN_PA_VENDOR_SPECIFIC && | |
3883 | WPA_GET_BE24(mgmt->u.action.u.vs_public_action.oui) == | |
3884 | OUI_WFA && | |
3885 | mgmt->u.action.u.vs_public_action.variable[0] == | |
3886 | DPP_OUI_TYPE) { | |
3887 | const u8 *pos, *end; | |
3888 | ||
dc4d271c | 3889 | pos = mgmt->u.action.u.vs_public_action.oui; |
9c2b8204 JM |
3890 | end = ((const u8 *) mgmt) + len; |
3891 | hostapd_dpp_rx_action(hapd, mgmt->sa, pos, end - pos, | |
c5cc7a59 | 3892 | freq); |
9c2b8204 JM |
3893 | return 1; |
3894 | } | |
3895 | if (len >= IEEE80211_HDRLEN + 2 && | |
3896 | (mgmt->u.action.u.public_action.action == | |
3897 | WLAN_PA_GAS_INITIAL_RESP || | |
3898 | mgmt->u.action.u.public_action.action == | |
3899 | WLAN_PA_GAS_COMEBACK_RESP)) { | |
3900 | const u8 *pos, *end; | |
3901 | ||
3902 | pos = &mgmt->u.action.u.public_action.action; | |
3903 | end = ((const u8 *) mgmt) + len; | |
3904 | gas_query_ap_rx(hapd->gas, mgmt->sa, | |
3905 | mgmt->u.action.category, | |
3906 | pos, end - pos, hapd->iface->freq); | |
3907 | return 1; | |
3908 | } | |
3909 | #endif /* CONFIG_DPP */ | |
c706d5aa JM |
3910 | if (hapd->public_action_cb) { |
3911 | hapd->public_action_cb(hapd->public_action_cb_ctx, | |
3912 | (u8 *) mgmt, len, | |
3913 | hapd->iface->freq); | |
c706d5aa | 3914 | } |
2d9ffe1e | 3915 | if (hapd->public_action_cb2) { |
8dabf4bb | 3916 | hapd->public_action_cb2(hapd->public_action_cb2_ctx, |
2d9ffe1e JM |
3917 | (u8 *) mgmt, len, |
3918 | hapd->iface->freq); | |
3919 | } | |
3920 | if (hapd->public_action_cb || hapd->public_action_cb2) | |
912b34f0 | 3921 | return 1; |
c706d5aa | 3922 | break; |
e44f8bf2 JM |
3923 | case WLAN_ACTION_VENDOR_SPECIFIC: |
3924 | if (hapd->vendor_action_cb) { | |
3925 | if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx, | |
3926 | (u8 *) mgmt, len, | |
3927 | hapd->iface->freq) == 0) | |
912b34f0 | 3928 | return 1; |
e44f8bf2 JM |
3929 | } |
3930 | break; | |
2572df34 DS |
3931 | case WLAN_ACTION_RADIO_MEASUREMENT: |
3932 | hostapd_handle_radio_measurement(hapd, (const u8 *) mgmt, len); | |
3933 | return 1; | |
6fc6879b JM |
3934 | } |
3935 | ||
3936 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
3937 | HOSTAPD_LEVEL_DEBUG, | |
3938 | "handle_action - unknown action category %d or invalid " | |
3939 | "frame", | |
3940 | mgmt->u.action.category); | |
81372e34 JB |
3941 | if (!is_multicast_ether_addr(mgmt->da) && |
3942 | !(mgmt->u.action.category & 0x80) && | |
3943 | !is_multicast_ether_addr(mgmt->sa)) { | |
b57e086c JM |
3944 | struct ieee80211_mgmt *resp; |
3945 | ||
6fc6879b JM |
3946 | /* |
3947 | * IEEE 802.11-REVma/D9.0 - 7.3.1.11 | |
3948 | * Return the Action frame to the source without change | |
3949 | * except that MSB of the Category set to 1. | |
3950 | */ | |
3951 | wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action " | |
3952 | "frame back to sender"); | |
a1f11e34 | 3953 | resp = os_memdup(mgmt, len); |
b57e086c | 3954 | if (resp == NULL) |
912b34f0 | 3955 | return 0; |
b57e086c JM |
3956 | os_memcpy(resp->da, resp->sa, ETH_ALEN); |
3957 | os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); | |
3958 | os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); | |
3959 | resp->u.action.category |= 0x80; | |
3960 | ||
41fe8b42 JM |
3961 | if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) { |
3962 | wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send " | |
3963 | "Action frame"); | |
3964 | } | |
b57e086c | 3965 | os_free(resp); |
6fc6879b | 3966 | } |
912b34f0 JM |
3967 | |
3968 | return 1; | |
6fc6879b JM |
3969 | } |
3970 | ||
3971 | ||
3972 | /** | |
3973 | * ieee802_11_mgmt - process incoming IEEE 802.11 management frames | |
3974 | * @hapd: hostapd BSS data structure (the BSS to which the management frame was | |
3975 | * sent to) | |
3976 | * @buf: management frame data (starting from IEEE 802.11 header) | |
3977 | * @len: length of frame data in octets | |
a17df5fb | 3978 | * @fi: meta data about received frame (signal level, etc.) |
6fc6879b JM |
3979 | * |
3980 | * Process all incoming IEEE 802.11 management frames. This will be called for | |
3981 | * each frame received from the kernel driver through wlan#ap interface. In | |
3982 | * addition, it can be called to re-inserted pending frames (e.g., when using | |
3983 | * external RADIUS server as an MAC ACL). | |
3984 | */ | |
912b34f0 JM |
3985 | int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, |
3986 | struct hostapd_frame_info *fi) | |
6fc6879b | 3987 | { |
f8b1f695 | 3988 | struct ieee80211_mgmt *mgmt; |
f8b1f695 | 3989 | u16 fc, stype; |
912b34f0 | 3990 | int ret = 0; |
c5cc7a59 | 3991 | unsigned int freq; |
659ac96d | 3992 | int ssi_signal = fi ? fi->ssi_signal : 0; |
f8b1f695 | 3993 | |
cbcf92b4 | 3994 | if (len < 24) |
912b34f0 | 3995 | return 0; |
cbcf92b4 | 3996 | |
c5cc7a59 JM |
3997 | if (fi && fi->freq) |
3998 | freq = fi->freq; | |
3999 | else | |
4000 | freq = hapd->iface->freq; | |
4001 | ||
f8b1f695 JM |
4002 | mgmt = (struct ieee80211_mgmt *) buf; |
4003 | fc = le_to_host16(mgmt->frame_control); | |
4004 | stype = WLAN_FC_GET_STYPE(fc); | |
6fc6879b JM |
4005 | |
4006 | if (stype == WLAN_FC_STYPE_BEACON) { | |
4007 | handle_beacon(hapd, mgmt, len, fi); | |
912b34f0 | 4008 | return 1; |
6fc6879b JM |
4009 | } |
4010 | ||
842c5af5 | 4011 | if (!is_broadcast_ether_addr(mgmt->bssid) && |
3eeee931 AN |
4012 | #ifdef CONFIG_P2P |
4013 | /* Invitation responses can be sent with the peer MAC as BSSID */ | |
4014 | !((hapd->conf->p2p & P2P_GROUP_OWNER) && | |
4015 | stype == WLAN_FC_STYPE_ACTION) && | |
4016 | #endif /* CONFIG_P2P */ | |
f3e9899e BC |
4017 | #ifdef CONFIG_MESH |
4018 | !(hapd->conf->mesh & MESH_ENABLED) && | |
4019 | #endif /* CONFIG_MESH */ | |
fe2c5241 | 4020 | os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) { |
61323e70 JM |
4021 | wpa_printf(MSG_INFO, "MGMT: BSSID=" MACSTR " not our address", |
4022 | MAC2STR(mgmt->bssid)); | |
912b34f0 | 4023 | return 0; |
6fc6879b JM |
4024 | } |
4025 | ||
4026 | ||
4027 | if (stype == WLAN_FC_STYPE_PROBE_REQ) { | |
659ac96d | 4028 | handle_probe_req(hapd, mgmt, len, ssi_signal); |
912b34f0 | 4029 | return 1; |
6fc6879b JM |
4030 | } |
4031 | ||
efeada91 JM |
4032 | if ((!is_broadcast_ether_addr(mgmt->da) || |
4033 | stype != WLAN_FC_STYPE_ACTION) && | |
4034 | os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) { | |
6fc6879b JM |
4035 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, |
4036 | HOSTAPD_LEVEL_DEBUG, | |
4037 | "MGMT: DA=" MACSTR " not our address", | |
4038 | MAC2STR(mgmt->da)); | |
912b34f0 | 4039 | return 0; |
6fc6879b JM |
4040 | } |
4041 | ||
b308a304 | 4042 | if (hapd->iconf->track_sta_max_num) |
659ac96d | 4043 | sta_track_add(hapd->iface, mgmt->sa, ssi_signal); |
b308a304 | 4044 | |
6fc6879b JM |
4045 | switch (stype) { |
4046 | case WLAN_FC_STYPE_AUTH: | |
4047 | wpa_printf(MSG_DEBUG, "mgmt::auth"); | |
4048 | handle_auth(hapd, mgmt, len); | |
912b34f0 | 4049 | ret = 1; |
6fc6879b JM |
4050 | break; |
4051 | case WLAN_FC_STYPE_ASSOC_REQ: | |
4052 | wpa_printf(MSG_DEBUG, "mgmt::assoc_req"); | |
4053 | handle_assoc(hapd, mgmt, len, 0); | |
912b34f0 | 4054 | ret = 1; |
6fc6879b | 4055 | break; |
6fc6879b JM |
4056 | case WLAN_FC_STYPE_REASSOC_REQ: |
4057 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_req"); | |
4058 | handle_assoc(hapd, mgmt, len, 1); | |
912b34f0 | 4059 | ret = 1; |
6fc6879b JM |
4060 | break; |
4061 | case WLAN_FC_STYPE_DISASSOC: | |
4062 | wpa_printf(MSG_DEBUG, "mgmt::disassoc"); | |
4063 | handle_disassoc(hapd, mgmt, len); | |
912b34f0 | 4064 | ret = 1; |
6fc6879b JM |
4065 | break; |
4066 | case WLAN_FC_STYPE_DEAUTH: | |
3ec1e902 | 4067 | wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth"); |
6fc6879b | 4068 | handle_deauth(hapd, mgmt, len); |
912b34f0 | 4069 | ret = 1; |
6fc6879b JM |
4070 | break; |
4071 | case WLAN_FC_STYPE_ACTION: | |
4072 | wpa_printf(MSG_DEBUG, "mgmt::action"); | |
c5cc7a59 | 4073 | ret = handle_action(hapd, mgmt, len, freq); |
6fc6879b JM |
4074 | break; |
4075 | default: | |
4076 | hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211, | |
4077 | HOSTAPD_LEVEL_DEBUG, | |
4078 | "unknown mgmt frame subtype %d", stype); | |
4079 | break; | |
4080 | } | |
912b34f0 JM |
4081 | |
4082 | return ret; | |
6fc6879b JM |
4083 | } |
4084 | ||
4085 | ||
4086 | static void handle_auth_cb(struct hostapd_data *hapd, | |
f8b1f695 | 4087 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
4088 | size_t len, int ok) |
4089 | { | |
4090 | u16 auth_alg, auth_transaction, status_code; | |
4091 | struct sta_info *sta; | |
4092 | ||
bb598c3b AB |
4093 | sta = ap_get_sta(hapd, mgmt->da); |
4094 | if (!sta) { | |
dc1b1c8d JM |
4095 | wpa_printf(MSG_DEBUG, "handle_auth_cb: STA " MACSTR |
4096 | " not found", | |
bb598c3b AB |
4097 | MAC2STR(mgmt->da)); |
4098 | return; | |
4099 | } | |
4100 | ||
4101 | auth_alg = le_to_host16(mgmt->u.auth.auth_alg); | |
4102 | auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction); | |
4103 | status_code = le_to_host16(mgmt->u.auth.status_code); | |
4104 | ||
6fc6879b JM |
4105 | if (!ok) { |
4106 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
4107 | HOSTAPD_LEVEL_NOTICE, | |
4108 | "did not acknowledge authentication response"); | |
bb598c3b | 4109 | goto fail; |
6fc6879b JM |
4110 | } |
4111 | ||
4112 | if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) { | |
61323e70 JM |
4113 | wpa_printf(MSG_INFO, "handle_auth_cb - too short payload (len=%lu)", |
4114 | (unsigned long) len); | |
bb598c3b | 4115 | goto fail; |
6fc6879b JM |
4116 | } |
4117 | ||
4118 | if (status_code == WLAN_STATUS_SUCCESS && | |
4119 | ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || | |
4120 | (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { | |
4121 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4122 | HOSTAPD_LEVEL_INFO, "authenticated"); | |
4123 | sta->flags |= WLAN_STA_AUTH; | |
bb598c3b AB |
4124 | if (sta->added_unassoc) |
4125 | hostapd_set_sta_flags(hapd, sta); | |
4126 | return; | |
4127 | } | |
4128 | ||
4129 | fail: | |
4130 | if (status_code != WLAN_STATUS_SUCCESS && sta->added_unassoc) { | |
4131 | hostapd_drv_sta_remove(hapd, sta->addr); | |
4132 | sta->added_unassoc = 0; | |
6fc6879b JM |
4133 | } |
4134 | } | |
4135 | ||
4136 | ||
69dd2967 SM |
4137 | static void hostapd_set_wds_encryption(struct hostapd_data *hapd, |
4138 | struct sta_info *sta, | |
4139 | char *ifname_wds) | |
4140 | { | |
4141 | int i; | |
f41ded6f | 4142 | struct hostapd_ssid *ssid = &hapd->conf->ssid; |
69dd2967 SM |
4143 | |
4144 | if (hapd->conf->ieee802_1x || hapd->conf->wpa) | |
4145 | return; | |
4146 | ||
4147 | for (i = 0; i < 4; i++) { | |
4148 | if (ssid->wep.key[i] && | |
4149 | hostapd_drv_set_key(ifname_wds, hapd, WPA_ALG_WEP, NULL, i, | |
4150 | i == ssid->wep.idx, NULL, 0, | |
4151 | ssid->wep.key[i], ssid->wep.len[i])) { | |
4152 | wpa_printf(MSG_WARNING, | |
4153 | "Could not set WEP keys for WDS interface; %s", | |
4154 | ifname_wds); | |
4155 | break; | |
4156 | } | |
4157 | } | |
4158 | } | |
4159 | ||
4160 | ||
6fc6879b | 4161 | static void handle_assoc_cb(struct hostapd_data *hapd, |
f8b1f695 | 4162 | const struct ieee80211_mgmt *mgmt, |
6fc6879b JM |
4163 | size_t len, int reassoc, int ok) |
4164 | { | |
4165 | u16 status; | |
4166 | struct sta_info *sta; | |
4167 | int new_assoc = 1; | |
4168 | ||
6fc6879b JM |
4169 | sta = ap_get_sta(hapd, mgmt->da); |
4170 | if (!sta) { | |
61323e70 JM |
4171 | wpa_printf(MSG_INFO, "handle_assoc_cb: STA " MACSTR " not found", |
4172 | MAC2STR(mgmt->da)); | |
6fc6879b JM |
4173 | return; |
4174 | } | |
4175 | ||
bb598c3b AB |
4176 | if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) : |
4177 | sizeof(mgmt->u.assoc_resp))) { | |
4178 | wpa_printf(MSG_INFO, | |
4179 | "handle_assoc_cb(reassoc=%d) - too short payload (len=%lu)", | |
4180 | reassoc, (unsigned long) len); | |
3f81ac07 AO |
4181 | hostapd_drv_sta_remove(hapd, sta->addr); |
4182 | return; | |
bb598c3b AB |
4183 | } |
4184 | ||
3f81ac07 AO |
4185 | if (reassoc) |
4186 | status = le_to_host16(mgmt->u.reassoc_resp.status_code); | |
4187 | else | |
4188 | status = le_to_host16(mgmt->u.assoc_resp.status_code); | |
4189 | ||
22b42372 FF |
4190 | if (!ok) { |
4191 | hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211, | |
4192 | HOSTAPD_LEVEL_DEBUG, | |
4193 | "did not acknowledge association response"); | |
4194 | sta->flags &= ~WLAN_STA_ASSOC_REQ_OK; | |
3f81ac07 AO |
4195 | /* The STA is added only in case of SUCCESS */ |
4196 | if (status == WLAN_STATUS_SUCCESS) | |
4197 | hostapd_drv_sta_remove(hapd, sta->addr); | |
22b42372 | 4198 | |
3f81ac07 AO |
4199 | return; |
4200 | } | |
22b42372 | 4201 | |
6fc6879b | 4202 | if (status != WLAN_STATUS_SUCCESS) |
5bdac4ab | 4203 | return; |
6fc6879b JM |
4204 | |
4205 | /* Stop previous accounting session, if one is started, and allocate | |
4206 | * new session id for the new session. */ | |
4207 | accounting_sta_stop(hapd, sta); | |
6fc6879b JM |
4208 | |
4209 | hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, | |
4210 | HOSTAPD_LEVEL_INFO, | |
2fc98d02 JM |
4211 | "associated (aid %d)", |
4212 | sta->aid); | |
6fc6879b JM |
4213 | |
4214 | if (sta->flags & WLAN_STA_ASSOC) | |
4215 | new_assoc = 0; | |
4216 | sta->flags |= WLAN_STA_ASSOC; | |
3578e665 | 4217 | sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE; |
07e0117d JM |
4218 | if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa && |
4219 | !hapd->conf->osen) || | |
4220 | sta->auth_alg == WLAN_AUTH_FILS_SK || | |
4221 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
4222 | sta->auth_alg == WLAN_AUTH_FILS_PK || | |
ef580012 JM |
4223 | sta->auth_alg == WLAN_AUTH_FT) { |
4224 | /* | |
07e0117d JM |
4225 | * Open, static WEP, FT protocol, or FILS; no separate |
4226 | * authorization step. | |
ef580012 | 4227 | */ |
6905dcb1 | 4228 | ap_sta_set_authorized(hapd, sta, 1); |
515cf93f | 4229 | } |
6fc6879b JM |
4230 | |
4231 | if (reassoc) | |
4232 | mlme_reassociate_indication(hapd, sta); | |
4233 | else | |
4234 | mlme_associate_indication(hapd, sta); | |
4235 | ||
5d22a1d5 | 4236 | #ifdef CONFIG_IEEE80211W |
93b76319 | 4237 | sta->sa_query_timed_out = 0; |
5d22a1d5 JM |
4238 | #endif /* CONFIG_IEEE80211W */ |
4239 | ||
6fc6879b JM |
4240 | if (sta->eapol_sm == NULL) { |
4241 | /* | |
4242 | * This STA does not use RADIUS server for EAP authentication, | |
4243 | * so bind it to the selected VLAN interface now, since the | |
4244 | * interface selection is not going to change anymore. | |
4245 | */ | |
c8e6beab | 4246 | if (ap_sta_bind_vlan(hapd, sta) < 0) |
5bdac4ab | 4247 | return; |
6fc6879b JM |
4248 | } else if (sta->vlan_id) { |
4249 | /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */ | |
c8e6beab | 4250 | if (ap_sta_bind_vlan(hapd, sta) < 0) |
5bdac4ab | 4251 | return; |
6fc6879b | 4252 | } |
eddd8010 | 4253 | |
0e8a96a9 | 4254 | hostapd_set_sta_flags(hapd, sta); |
6fc6879b | 4255 | |
1f0fdaf0 JM |
4256 | if (!(sta->flags & WLAN_STA_WDS) && sta->pending_wds_enable) { |
4257 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for STA " | |
4258 | MACSTR " based on pending request", | |
4259 | MAC2STR(sta->addr)); | |
4260 | sta->pending_wds_enable = 0; | |
4261 | sta->flags |= WLAN_STA_WDS; | |
4262 | } | |
4263 | ||
cb2b6666 JM |
4264 | if (sta->flags & WLAN_STA_WDS) { |
4265 | int ret; | |
4266 | char ifname_wds[IFNAMSIZ + 1]; | |
4267 | ||
4268 | wpa_printf(MSG_DEBUG, "Reenable 4-address WDS mode for STA " | |
4269 | MACSTR " (aid %u)", | |
4270 | MAC2STR(sta->addr), sta->aid); | |
4271 | ret = hostapd_set_wds_sta(hapd, ifname_wds, sta->addr, | |
4272 | sta->aid, 1); | |
4273 | if (!ret) | |
4274 | hostapd_set_wds_encryption(hapd, sta, ifname_wds); | |
4275 | } | |
4276 | ||
6fc6879b JM |
4277 | if (sta->auth_alg == WLAN_AUTH_FT) |
4278 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
4279 | else | |
4280 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
d24df7c3 | 4281 | hapd->new_assoc_sta_cb(hapd, sta, !new_assoc); |
6fc6879b | 4282 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); |
f2accfe7 | 4283 | |
da24c5aa JM |
4284 | #ifdef CONFIG_FILS |
4285 | if ((sta->auth_alg == WLAN_AUTH_FILS_SK || | |
4286 | sta->auth_alg == WLAN_AUTH_FILS_SK_PFS || | |
4287 | sta->auth_alg == WLAN_AUTH_FILS_PK) && | |
4288 | fils_set_tk(sta->wpa_sm) < 0) { | |
4289 | wpa_printf(MSG_DEBUG, "FILS: TK configuration failed"); | |
4290 | ap_sta_disconnect(hapd, sta, sta->addr, | |
4291 | WLAN_REASON_UNSPECIFIED); | |
4292 | return; | |
4293 | } | |
4294 | #endif /* CONFIG_FILS */ | |
4295 | ||
f2accfe7 EP |
4296 | if (sta->pending_eapol_rx) { |
4297 | struct os_reltime now, age; | |
4298 | ||
4299 | os_get_reltime(&now); | |
4300 | os_reltime_sub(&now, &sta->pending_eapol_rx->rx_time, &age); | |
4301 | if (age.sec == 0 && age.usec < 200000) { | |
4302 | wpa_printf(MSG_DEBUG, | |
4303 | "Process pending EAPOL frame that was received from " MACSTR " just before association notification", | |
4304 | MAC2STR(sta->addr)); | |
4305 | ieee802_1x_receive( | |
4306 | hapd, mgmt->da, | |
4307 | wpabuf_head(sta->pending_eapol_rx->buf), | |
4308 | wpabuf_len(sta->pending_eapol_rx->buf)); | |
4309 | } | |
4310 | wpabuf_free(sta->pending_eapol_rx->buf); | |
4311 | os_free(sta->pending_eapol_rx); | |
4312 | sta->pending_eapol_rx = NULL; | |
4313 | } | |
6fc6879b JM |
4314 | } |
4315 | ||
4316 | ||
4dc03726 JM |
4317 | static void handle_deauth_cb(struct hostapd_data *hapd, |
4318 | const struct ieee80211_mgmt *mgmt, | |
4319 | size_t len, int ok) | |
4320 | { | |
4321 | struct sta_info *sta; | |
81372e34 | 4322 | if (is_multicast_ether_addr(mgmt->da)) |
4dc03726 JM |
4323 | return; |
4324 | sta = ap_get_sta(hapd, mgmt->da); | |
4325 | if (!sta) { | |
4326 | wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR | |
4327 | " not found", MAC2STR(mgmt->da)); | |
4328 | return; | |
4329 | } | |
4330 | if (ok) | |
4331 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth", | |
4332 | MAC2STR(sta->addr)); | |
4333 | else | |
4334 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
4335 | "deauth", MAC2STR(sta->addr)); | |
4336 | ||
4337 | ap_sta_deauth_cb(hapd, sta); | |
4338 | } | |
4339 | ||
4340 | ||
4341 | static void handle_disassoc_cb(struct hostapd_data *hapd, | |
4342 | const struct ieee80211_mgmt *mgmt, | |
4343 | size_t len, int ok) | |
4344 | { | |
4345 | struct sta_info *sta; | |
81372e34 | 4346 | if (is_multicast_ether_addr(mgmt->da)) |
4dc03726 JM |
4347 | return; |
4348 | sta = ap_get_sta(hapd, mgmt->da); | |
4349 | if (!sta) { | |
4350 | wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR | |
4351 | " not found", MAC2STR(mgmt->da)); | |
4352 | return; | |
4353 | } | |
4354 | if (ok) | |
4355 | wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc", | |
4356 | MAC2STR(sta->addr)); | |
4357 | else | |
4358 | wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge " | |
4359 | "disassoc", MAC2STR(sta->addr)); | |
4360 | ||
4361 | ap_sta_disassoc_cb(hapd, sta); | |
4362 | } | |
4363 | ||
4364 | ||
f3383366 JM |
4365 | static void handle_action_cb(struct hostapd_data *hapd, |
4366 | const struct ieee80211_mgmt *mgmt, | |
4367 | size_t len, int ok) | |
4368 | { | |
4369 | struct sta_info *sta; | |
167f78a5 | 4370 | const struct rrm_measurement_report_element *report; |
f3383366 JM |
4371 | |
4372 | if (is_multicast_ether_addr(mgmt->da)) | |
4373 | return; | |
9c2b8204 JM |
4374 | #ifdef CONFIG_DPP |
4375 | if (len >= IEEE80211_HDRLEN + 6 && | |
4376 | mgmt->u.action.category == WLAN_ACTION_PUBLIC && | |
4377 | mgmt->u.action.u.vs_public_action.action == | |
4378 | WLAN_PA_VENDOR_SPECIFIC && | |
4379 | WPA_GET_BE24(mgmt->u.action.u.vs_public_action.oui) == | |
4380 | OUI_WFA && | |
4381 | mgmt->u.action.u.vs_public_action.variable[0] == | |
4382 | DPP_OUI_TYPE) { | |
4383 | const u8 *pos, *end; | |
4384 | ||
4385 | pos = &mgmt->u.action.u.vs_public_action.variable[1]; | |
4386 | end = ((const u8 *) mgmt) + len; | |
4387 | hostapd_dpp_tx_status(hapd, mgmt->da, pos, end - pos, ok); | |
4388 | return; | |
4389 | } | |
4390 | if (len >= IEEE80211_HDRLEN + 2 && | |
4391 | mgmt->u.action.category == WLAN_ACTION_PUBLIC && | |
4392 | (mgmt->u.action.u.public_action.action == | |
4393 | WLAN_PA_GAS_INITIAL_REQ || | |
4394 | mgmt->u.action.u.public_action.action == | |
4395 | WLAN_PA_GAS_COMEBACK_REQ)) { | |
4396 | const u8 *pos, *end; | |
4397 | ||
4398 | pos = mgmt->u.action.u.public_action.variable; | |
4399 | end = ((const u8 *) mgmt) + len; | |
4400 | gas_query_ap_tx_status(hapd->gas, mgmt->da, pos, end - pos, ok); | |
4401 | return; | |
4402 | } | |
4403 | #endif /* CONFIG_DPP */ | |
f3383366 JM |
4404 | sta = ap_get_sta(hapd, mgmt->da); |
4405 | if (!sta) { | |
4406 | wpa_printf(MSG_DEBUG, "handle_action_cb: STA " MACSTR | |
4407 | " not found", MAC2STR(mgmt->da)); | |
4408 | return; | |
4409 | } | |
4410 | ||
167f78a5 | 4411 | if (len < 24 + 5 + sizeof(*report)) |
f3383366 | 4412 | return; |
167f78a5 JM |
4413 | report = (const struct rrm_measurement_report_element *) |
4414 | &mgmt->u.action.u.rrm.variable[2]; | |
f3383366 | 4415 | if (mgmt->u.action.category == WLAN_ACTION_RADIO_MEASUREMENT && |
167f78a5 JM |
4416 | mgmt->u.action.u.rrm.action == WLAN_RRM_RADIO_MEASUREMENT_REQUEST && |
4417 | report->eid == WLAN_EID_MEASURE_REQUEST && | |
4418 | report->len >= 3 && | |
4419 | report->type == MEASURE_TYPE_BEACON) | |
f3383366 JM |
4420 | hostapd_rrm_beacon_req_tx_status(hapd, mgmt, len, ok); |
4421 | } | |
4422 | ||
4423 | ||
1c6e69cc JM |
4424 | /** |
4425 | * ieee802_11_mgmt_cb - Process management frame TX status callback | |
4426 | * @hapd: hostapd BSS data structure (the BSS from which the management frame | |
4427 | * was sent from) | |
4428 | * @buf: management frame data (starting from IEEE 802.11 header) | |
4429 | * @len: length of frame data in octets | |
4430 | * @stype: management frame subtype from frame control field | |
4431 | * @ok: Whether the frame was ACK'ed | |
4432 | */ | |
f8b1f695 | 4433 | void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len, |
6fc6879b JM |
4434 | u16 stype, int ok) |
4435 | { | |
f8b1f695 JM |
4436 | const struct ieee80211_mgmt *mgmt; |
4437 | mgmt = (const struct ieee80211_mgmt *) buf; | |
6fc6879b | 4438 | |
93827f45 JM |
4439 | #ifdef CONFIG_TESTING_OPTIONS |
4440 | if (hapd->ext_mgmt_frame_handling) { | |
df949062 JM |
4441 | size_t hex_len = 2 * len + 1; |
4442 | char *hex = os_malloc(hex_len); | |
4443 | ||
4444 | if (hex) { | |
4445 | wpa_snprintf_hex(hex, hex_len, buf, len); | |
4446 | wpa_msg(hapd->msg_ctx, MSG_INFO, | |
4447 | "MGMT-TX-STATUS stype=%u ok=%d buf=%s", | |
4448 | stype, ok, hex); | |
4449 | os_free(hex); | |
4450 | } | |
93827f45 JM |
4451 | return; |
4452 | } | |
4453 | #endif /* CONFIG_TESTING_OPTIONS */ | |
4454 | ||
6fc6879b JM |
4455 | switch (stype) { |
4456 | case WLAN_FC_STYPE_AUTH: | |
4457 | wpa_printf(MSG_DEBUG, "mgmt::auth cb"); | |
4458 | handle_auth_cb(hapd, mgmt, len, ok); | |
4459 | break; | |
4460 | case WLAN_FC_STYPE_ASSOC_RESP: | |
4461 | wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb"); | |
4462 | handle_assoc_cb(hapd, mgmt, len, 0, ok); | |
4463 | break; | |
4464 | case WLAN_FC_STYPE_REASSOC_RESP: | |
4465 | wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb"); | |
4466 | handle_assoc_cb(hapd, mgmt, len, 1, ok); | |
4467 | break; | |
4468 | case WLAN_FC_STYPE_PROBE_RESP: | |
077dcfb8 | 4469 | wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb ok=%d", ok); |
6fc6879b JM |
4470 | break; |
4471 | case WLAN_FC_STYPE_DEAUTH: | |
4dc03726 JM |
4472 | wpa_printf(MSG_DEBUG, "mgmt::deauth cb"); |
4473 | handle_deauth_cb(hapd, mgmt, len, ok); | |
4474 | break; | |
4475 | case WLAN_FC_STYPE_DISASSOC: | |
4476 | wpa_printf(MSG_DEBUG, "mgmt::disassoc cb"); | |
4477 | handle_disassoc_cb(hapd, mgmt, len, ok); | |
6fc6879b | 4478 | break; |
5d22a1d5 | 4479 | case WLAN_FC_STYPE_ACTION: |
077dcfb8 | 4480 | wpa_printf(MSG_DEBUG, "mgmt::action cb ok=%d", ok); |
f3383366 | 4481 | handle_action_cb(hapd, mgmt, len, ok); |
5d22a1d5 | 4482 | break; |
6fc6879b | 4483 | default: |
61323e70 | 4484 | wpa_printf(MSG_INFO, "unknown mgmt cb frame subtype %d", stype); |
6fc6879b JM |
4485 | break; |
4486 | } | |
4487 | } | |
4488 | ||
4489 | ||
6fc6879b JM |
4490 | int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen) |
4491 | { | |
4492 | /* TODO */ | |
4493 | return 0; | |
4494 | } | |
4495 | ||
4496 | ||
4497 | int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, | |
4498 | char *buf, size_t buflen) | |
4499 | { | |
4500 | /* TODO */ | |
4501 | return 0; | |
4502 | } | |
4503 | ||
f8b1f695 JM |
4504 | |
4505 | void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr, | |
4506 | const u8 *buf, size_t len, int ack) | |
4507 | { | |
4508 | struct sta_info *sta; | |
4509 | struct hostapd_iface *iface = hapd->iface; | |
4510 | ||
4511 | sta = ap_get_sta(hapd, addr); | |
4512 | if (sta == NULL && iface->num_bss > 1) { | |
4513 | size_t j; | |
4514 | for (j = 0; j < iface->num_bss; j++) { | |
4515 | hapd = iface->bss[j]; | |
4516 | sta = ap_get_sta(hapd, addr); | |
4517 | if (sta) | |
4518 | break; | |
4519 | } | |
4520 | } | |
0c01d65d | 4521 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) |
f8b1f695 JM |
4522 | return; |
4523 | if (sta->flags & WLAN_STA_PENDING_POLL) { | |
4524 | wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending " | |
4525 | "activity poll", MAC2STR(sta->addr), | |
4526 | ack ? "ACKed" : "did not ACK"); | |
4527 | if (ack) | |
4528 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
4529 | } | |
4530 | ||
4531 | ieee802_1x_tx_status(hapd, sta, buf, len, ack); | |
4532 | } | |
4533 | ||
4534 | ||
dd840f79 JB |
4535 | void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst, |
4536 | const u8 *data, size_t len, int ack) | |
4537 | { | |
4538 | struct sta_info *sta; | |
4539 | struct hostapd_iface *iface = hapd->iface; | |
4540 | ||
4541 | sta = ap_get_sta(hapd, dst); | |
4542 | if (sta == NULL && iface->num_bss > 1) { | |
4543 | size_t j; | |
4544 | for (j = 0; j < iface->num_bss; j++) { | |
4545 | hapd = iface->bss[j]; | |
4546 | sta = ap_get_sta(hapd, dst); | |
4547 | if (sta) | |
4548 | break; | |
4549 | } | |
4550 | } | |
d9a38716 JM |
4551 | if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { |
4552 | wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA " | |
4553 | MACSTR " that is not currently associated", | |
4554 | MAC2STR(dst)); | |
dd840f79 | 4555 | return; |
d9a38716 | 4556 | } |
dd840f79 JB |
4557 | |
4558 | ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack); | |
4559 | } | |
4560 | ||
4561 | ||
bcf24348 JB |
4562 | void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr) |
4563 | { | |
4564 | struct sta_info *sta; | |
4565 | struct hostapd_iface *iface = hapd->iface; | |
4566 | ||
4567 | sta = ap_get_sta(hapd, addr); | |
4568 | if (sta == NULL && iface->num_bss > 1) { | |
4569 | size_t j; | |
4570 | for (j = 0; j < iface->num_bss; j++) { | |
4571 | hapd = iface->bss[j]; | |
4572 | sta = ap_get_sta(hapd, addr); | |
4573 | if (sta) | |
4574 | break; | |
4575 | } | |
4576 | } | |
4577 | if (sta == NULL) | |
4578 | return; | |
1854eeca JM |
4579 | wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POLL_OK MACSTR, |
4580 | MAC2STR(sta->addr)); | |
bcf24348 JB |
4581 | if (!(sta->flags & WLAN_STA_PENDING_POLL)) |
4582 | return; | |
4583 | ||
4584 | wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending " | |
4585 | "activity poll", MAC2STR(sta->addr)); | |
4586 | sta->flags &= ~WLAN_STA_PENDING_POLL; | |
4587 | } | |
4588 | ||
4589 | ||
fbbfcbac FF |
4590 | void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src, |
4591 | int wds) | |
f8b1f695 JM |
4592 | { |
4593 | struct sta_info *sta; | |
4594 | ||
4595 | sta = ap_get_sta(hapd, src); | |
1f0fdaf0 JM |
4596 | if (sta && |
4597 | ((sta->flags & WLAN_STA_ASSOC) || | |
4598 | ((sta->flags & WLAN_STA_ASSOC_REQ_OK) && wds))) { | |
99743811 FF |
4599 | if (!hapd->conf->wds_sta) |
4600 | return; | |
4601 | ||
1f0fdaf0 JM |
4602 | if ((sta->flags & (WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK)) == |
4603 | WLAN_STA_ASSOC_REQ_OK) { | |
4604 | wpa_printf(MSG_DEBUG, | |
4605 | "Postpone 4-address WDS mode enabling for STA " | |
4606 | MACSTR " since TX status for AssocResp is not yet known", | |
4607 | MAC2STR(sta->addr)); | |
4608 | sta->pending_wds_enable = 1; | |
4609 | return; | |
4610 | } | |
4611 | ||
fbbfcbac | 4612 | if (wds && !(sta->flags & WLAN_STA_WDS)) { |
69dd2967 SM |
4613 | int ret; |
4614 | char ifname_wds[IFNAMSIZ + 1]; | |
4615 | ||
fbbfcbac FF |
4616 | wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for " |
4617 | "STA " MACSTR " (aid %u)", | |
4618 | MAC2STR(sta->addr), sta->aid); | |
4619 | sta->flags |= WLAN_STA_WDS; | |
69dd2967 SM |
4620 | ret = hostapd_set_wds_sta(hapd, ifname_wds, |
4621 | sta->addr, sta->aid, 1); | |
4622 | if (!ret) | |
4623 | hostapd_set_wds_encryption(hapd, sta, | |
4624 | ifname_wds); | |
fbbfcbac | 4625 | } |
f8b1f695 | 4626 | return; |
fbbfcbac | 4627 | } |
f8b1f695 JM |
4628 | |
4629 | wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA " | |
4630 | MACSTR, MAC2STR(src)); | |
81372e34 | 4631 | if (is_multicast_ether_addr(src)) { |
1df492df JM |
4632 | /* Broadcast bit set in SA?! Ignore the frame silently. */ |
4633 | return; | |
4634 | } | |
4635 | ||
b8281964 JM |
4636 | if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) { |
4637 | wpa_printf(MSG_DEBUG, "Association Response to the STA has " | |
4638 | "already been sent, but no TX status yet known - " | |
4639 | "ignore Class 3 frame issue with " MACSTR, | |
4640 | MAC2STR(src)); | |
4641 | return; | |
4642 | } | |
4643 | ||
f8b1f695 | 4644 | if (sta && (sta->flags & WLAN_STA_AUTH)) |
51e2a27a | 4645 | hostapd_drv_sta_disassoc( |
f8b1f695 JM |
4646 | hapd, src, |
4647 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
4648 | else | |
51e2a27a | 4649 | hostapd_drv_sta_deauth( |
f8b1f695 JM |
4650 | hapd, src, |
4651 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
4652 | } | |
4653 | ||
4654 | ||
6fc6879b | 4655 | #endif /* CONFIG_NATIVE_WINDOWS */ |