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Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * wpa_supplicant - SME
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08003 * Copyright (c) 2009-2014, Jouni Malinen <j@w1.fi>
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "utils/eloop.h"
13#include "common/ieee802_11_defs.h"
14#include "common/ieee802_11_common.h"
Hai Shalom74f70d42019-02-11 14:42:39 -080015#include "common/ocv.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070016#include "eapol_supp/eapol_supp_sm.h"
17#include "common/wpa_common.h"
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080018#include "common/sae.h"
Hai Shalom021b0b52019-04-10 11:17:58 -070019#include "common/dpp.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070020#include "rsn_supp/wpa.h"
21#include "rsn_supp/pmksa_cache.h"
22#include "config.h"
23#include "wpa_supplicant_i.h"
24#include "driver_i.h"
25#include "wpas_glue.h"
26#include "wps_supplicant.h"
27#include "p2p_supplicant.h"
28#include "notify.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070029#include "bss.h"
30#include "scan.h"
31#include "sme.h"
Dmitry Shmidt04949592012-07-19 12:16:46 -070032#include "hs20_supplicant.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070033
34#define SME_AUTH_TIMEOUT 5
35#define SME_ASSOC_TIMEOUT 5
36
37static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx);
38static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx);
Dmitry Shmidt04949592012-07-19 12:16:46 -070039static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070040#ifdef CONFIG_IEEE80211W
41static void sme_stop_sa_query(struct wpa_supplicant *wpa_s);
42#endif /* CONFIG_IEEE80211W */
43
44
Dmitry Shmidtd5e49232012-12-03 15:08:10 -080045#ifdef CONFIG_SAE
46
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080047static int index_within_array(const int *array, int idx)
48{
49 int i;
50 for (i = 0; i < idx; i++) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -080051 if (array[i] <= 0)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080052 return 0;
53 }
54 return 1;
55}
56
57
58static int sme_set_sae_group(struct wpa_supplicant *wpa_s)
59{
60 int *groups = wpa_s->conf->sae_groups;
Hai Shalom021b0b52019-04-10 11:17:58 -070061 int default_groups[] = { 19, 20, 21, 0 };
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080062
Dmitry Shmidtcce06662013-11-04 18:44:24 -080063 if (!groups || groups[0] <= 0)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080064 groups = default_groups;
65
66 /* Configuration may have changed, so validate current index */
67 if (!index_within_array(groups, wpa_s->sme.sae_group_index))
68 return -1;
69
70 for (;;) {
71 int group = groups[wpa_s->sme.sae_group_index];
Dmitry Shmidt41712582015-06-29 11:02:15 -070072 if (group <= 0)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080073 break;
74 if (sae_set_group(&wpa_s->sme.sae, group) == 0) {
75 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected SAE group %d",
76 wpa_s->sme.sae.group);
Hai Shalom74f70d42019-02-11 14:42:39 -080077 return 0;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080078 }
79 wpa_s->sme.sae_group_index++;
80 }
81
82 return -1;
83}
84
85
86static struct wpabuf * sme_auth_build_sae_commit(struct wpa_supplicant *wpa_s,
87 struct wpa_ssid *ssid,
Hai Shalom021b0b52019-04-10 11:17:58 -070088 const u8 *bssid, int external,
89 int reuse)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -080090{
91 struct wpabuf *buf;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080092 size_t len;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -070093 const char *password;
Dmitry Shmidtd5e49232012-12-03 15:08:10 -080094
Dmitry Shmidtd2986c22017-10-23 14:22:09 -070095#ifdef CONFIG_TESTING_OPTIONS
96 if (wpa_s->sae_commit_override) {
97 wpa_printf(MSG_DEBUG, "SAE: TESTING - commit override");
98 buf = wpabuf_alloc(4 + wpabuf_len(wpa_s->sae_commit_override));
99 if (!buf)
100 return NULL;
Hai Shalom021b0b52019-04-10 11:17:58 -0700101 if (!external) {
102 wpabuf_put_le16(buf, 1); /* Transaction seq# */
103 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
104 }
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700105 wpabuf_put_buf(buf, wpa_s->sae_commit_override);
106 return buf;
107 }
108#endif /* CONFIG_TESTING_OPTIONS */
109
110 password = ssid->sae_password;
111 if (!password)
112 password = ssid->passphrase;
113 if (!password) {
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800114 wpa_printf(MSG_DEBUG, "SAE: No password available");
115 return NULL;
116 }
117
Hai Shalom021b0b52019-04-10 11:17:58 -0700118 if (reuse && wpa_s->sme.sae.tmp &&
119 os_memcmp(bssid, wpa_s->sme.sae.tmp->bssid, ETH_ALEN) == 0) {
120 wpa_printf(MSG_DEBUG,
121 "SAE: Reuse previously generated PWE on a retry with the same AP");
122 goto reuse_data;
123 }
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800124 if (sme_set_sae_group(wpa_s) < 0) {
125 wpa_printf(MSG_DEBUG, "SAE: Failed to select group");
126 return NULL;
127 }
128
129 if (sae_prepare_commit(wpa_s->own_addr, bssid,
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700130 (u8 *) password, os_strlen(password),
Roshan Pius3a1667e2018-07-03 15:17:14 -0700131 ssid->sae_password_id,
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800132 &wpa_s->sme.sae) < 0) {
133 wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE");
134 return NULL;
135 }
Hai Shalom021b0b52019-04-10 11:17:58 -0700136 if (wpa_s->sme.sae.tmp)
137 os_memcpy(wpa_s->sme.sae.tmp->bssid, bssid, ETH_ALEN);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800138
Hai Shalom021b0b52019-04-10 11:17:58 -0700139reuse_data:
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800140 len = wpa_s->sme.sae_token ? wpabuf_len(wpa_s->sme.sae_token) : 0;
Roshan Pius3a1667e2018-07-03 15:17:14 -0700141 if (ssid->sae_password_id)
142 len += 4 + os_strlen(ssid->sae_password_id);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800143 buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + len);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800144 if (buf == NULL)
145 return NULL;
Roshan Pius3a1667e2018-07-03 15:17:14 -0700146 if (!external) {
147 wpabuf_put_le16(buf, 1); /* Transaction seq# */
148 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
149 }
150 sae_write_commit(&wpa_s->sme.sae, buf, wpa_s->sme.sae_token,
151 ssid->sae_password_id);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800152
153 return buf;
154}
155
156
Roshan Pius3a1667e2018-07-03 15:17:14 -0700157static struct wpabuf * sme_auth_build_sae_confirm(struct wpa_supplicant *wpa_s,
158 int external)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800159{
160 struct wpabuf *buf;
161
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800162 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800163 if (buf == NULL)
164 return NULL;
165
Roshan Pius3a1667e2018-07-03 15:17:14 -0700166 if (!external) {
167 wpabuf_put_le16(buf, 2); /* Transaction seq# */
168 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
169 }
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800170 sae_write_confirm(&wpa_s->sme.sae, buf);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800171
172 return buf;
173}
174
175#endif /* CONFIG_SAE */
176
177
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800178/**
179 * sme_auth_handle_rrm - Handle RRM aspects of current authentication attempt
180 * @wpa_s: Pointer to wpa_supplicant data
181 * @bss: Pointer to the bss which is the target of authentication attempt
182 */
183static void sme_auth_handle_rrm(struct wpa_supplicant *wpa_s,
184 struct wpa_bss *bss)
185{
186 const u8 rrm_ie_len = 5;
187 u8 *pos;
188 const u8 *rrm_ie;
189
190 wpa_s->rrm.rrm_used = 0;
191
192 wpa_printf(MSG_DEBUG,
193 "RRM: Determining whether RRM can be used - device support: 0x%x",
194 wpa_s->drv_rrm_flags);
195
196 rrm_ie = wpa_bss_get_ie(bss, WLAN_EID_RRM_ENABLED_CAPABILITIES);
197 if (!rrm_ie || !(bss->caps & IEEE80211_CAP_RRM)) {
198 wpa_printf(MSG_DEBUG, "RRM: No RRM in network");
199 return;
200 }
201
Dmitry Shmidt849734c2016-05-27 09:59:01 -0700202 if (!((wpa_s->drv_rrm_flags &
203 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) &&
204 (wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) &&
205 !(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800206 wpa_printf(MSG_DEBUG,
207 "RRM: Insufficient RRM support in driver - do not use RRM");
208 return;
209 }
210
211 if (sizeof(wpa_s->sme.assoc_req_ie) <
212 wpa_s->sme.assoc_req_ie_len + rrm_ie_len + 2) {
213 wpa_printf(MSG_INFO,
214 "RRM: Unable to use RRM, no room for RRM IE");
215 return;
216 }
217
218 wpa_printf(MSG_DEBUG, "RRM: Adding RRM IE to Association Request");
219 pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
220 os_memset(pos, 0, 2 + rrm_ie_len);
221 *pos++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
222 *pos++ = rrm_ie_len;
223
224 /* Set supported capabilites flags */
225 if (wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)
226 *pos |= WLAN_RRM_CAPS_LINK_MEASUREMENT;
227
Dmitry Shmidt29333592017-01-09 12:27:11 -0800228 *pos |= WLAN_RRM_CAPS_BEACON_REPORT_PASSIVE |
229 WLAN_RRM_CAPS_BEACON_REPORT_ACTIVE |
230 WLAN_RRM_CAPS_BEACON_REPORT_TABLE;
231
Dmitry Shmidt849734c2016-05-27 09:59:01 -0700232 if (wpa_s->lci)
233 pos[1] |= WLAN_RRM_CAPS_LCI_MEASUREMENT;
234
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800235 wpa_s->sme.assoc_req_ie_len += rrm_ie_len + 2;
236 wpa_s->rrm.rrm_used = 1;
237}
238
239
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800240static void sme_send_authentication(struct wpa_supplicant *wpa_s,
241 struct wpa_bss *bss, struct wpa_ssid *ssid,
242 int start)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700243{
244 struct wpa_driver_auth_params params;
245 struct wpa_ssid *old_ssid;
246#ifdef CONFIG_IEEE80211R
247 const u8 *ie;
248#endif /* CONFIG_IEEE80211R */
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700249#if defined(CONFIG_IEEE80211R) || defined(CONFIG_FILS)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700250 const u8 *md = NULL;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700251#endif /* CONFIG_IEEE80211R || CONFIG_FILS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700252 int i, bssid_changed;
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800253 struct wpabuf *resp = NULL;
Dmitry Shmidt09f57ba2014-06-10 16:07:13 -0700254 u8 ext_capab[18];
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800255 int ext_capab_len;
Dmitry Shmidt7f656022015-02-25 14:36:37 -0800256 int skip_auth;
Hai Shalom39ba6fc2019-01-22 12:40:38 -0800257 u8 *wpa_ie;
258 size_t wpa_ie_len;
Hai Shalomce48b4a2018-09-05 11:41:35 -0700259#ifdef CONFIG_MBO
260 const u8 *mbo_ie;
261#endif /* CONFIG_MBO */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700262
263 if (bss == NULL) {
264 wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
265 "the network");
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800266 wpas_connect_work_done(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700267 return;
268 }
269
Dmitry Shmidt7f656022015-02-25 14:36:37 -0800270 skip_auth = wpa_s->conf->reassoc_same_bss_optim &&
271 wpa_s->reassoc_same_bss;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700272 wpa_s->current_bss = bss;
273
274 os_memset(&params, 0, sizeof(params));
275 wpa_s->reassociate = 0;
276
277 params.freq = bss->freq;
278 params.bssid = bss->bssid;
279 params.ssid = bss->ssid;
280 params.ssid_len = bss->ssid_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800281 params.p2p = ssid->p2p_group;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700282
283 if (wpa_s->sme.ssid_len != params.ssid_len ||
284 os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0)
285 wpa_s->sme.prev_bssid_set = 0;
286
287 wpa_s->sme.freq = params.freq;
288 os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
289 wpa_s->sme.ssid_len = params.ssid_len;
290
291 params.auth_alg = WPA_AUTH_ALG_OPEN;
292#ifdef IEEE8021X_EAPOL
293 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
294 if (ssid->leap) {
295 if (ssid->non_leap == 0)
296 params.auth_alg = WPA_AUTH_ALG_LEAP;
297 else
298 params.auth_alg |= WPA_AUTH_ALG_LEAP;
299 }
300 }
301#endif /* IEEE8021X_EAPOL */
302 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
303 params.auth_alg);
304 if (ssid->auth_alg) {
305 params.auth_alg = ssid->auth_alg;
306 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
307 "0x%x", params.auth_alg);
308 }
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800309#ifdef CONFIG_SAE
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800310 wpa_s->sme.sae_pmksa_caching = 0;
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800311 if (wpa_key_mgmt_sae(ssid->key_mgmt)) {
312 const u8 *rsn;
313 struct wpa_ie_data ied;
314
315 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800316 if (!rsn) {
317 wpa_dbg(wpa_s, MSG_DEBUG,
318 "SAE enabled, but target BSS does not advertise RSN");
Hai Shalom021b0b52019-04-10 11:17:58 -0700319#ifdef CONFIG_DPP
320 } else if (wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 &&
321 (ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
322 (ied.key_mgmt & WPA_KEY_MGMT_DPP)) {
323 wpa_dbg(wpa_s, MSG_DEBUG, "Prefer DPP over SAE when both are enabled");
324#endif /* CONFIG_DPP */
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800325 } else if (wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 &&
326 wpa_key_mgmt_sae(ied.key_mgmt)) {
327 wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg");
328 params.auth_alg = WPA_AUTH_ALG_SAE;
329 } else {
330 wpa_dbg(wpa_s, MSG_DEBUG,
331 "SAE enabled, but target BSS does not advertise SAE AKM for RSN");
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800332 }
333 }
334#endif /* CONFIG_SAE */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700335
336 for (i = 0; i < NUM_WEP_KEYS; i++) {
337 if (ssid->wep_key_len[i])
338 params.wep_key[i] = ssid->wep_key[i];
339 params.wep_key_len[i] = ssid->wep_key_len[i];
340 }
341 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
342
343 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
344 os_memset(wpa_s->bssid, 0, ETH_ALEN);
345 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
346 if (bssid_changed)
347 wpas_notify_bssid_changed(wpa_s);
348
349 if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
350 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800351 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700352 int try_opportunistic;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700353 const u8 *cache_id = NULL;
354
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800355 try_opportunistic = (ssid->proactive_key_caching < 0 ?
356 wpa_s->conf->okc :
357 ssid->proactive_key_caching) &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700358 (ssid->proto & WPA_PROTO_RSN);
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700359#ifdef CONFIG_FILS
360 if (wpa_key_mgmt_fils(ssid->key_mgmt))
361 cache_id = wpa_bss_get_fils_cache_id(bss);
362#endif /* CONFIG_FILS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700363 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
364 wpa_s->current_ssid,
Roshan Pius3a1667e2018-07-03 15:17:14 -0700365 try_opportunistic, cache_id,
366 0) == 0)
Dmitry Shmidt216983b2015-02-06 10:50:36 -0800367 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700368 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
369 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
370 wpa_s->sme.assoc_req_ie,
371 &wpa_s->sme.assoc_req_ie_len)) {
372 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
373 "key management and encryption suites");
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800374 wpas_connect_work_done(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700375 return;
376 }
Hai Shalom74f70d42019-02-11 14:42:39 -0800377#ifdef CONFIG_HS20
378 } else if (wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE) &&
379 (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)) {
380 /* No PMKSA caching, but otherwise similar to RSN/WPA */
381 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
382 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
383 wpa_s->sme.assoc_req_ie,
384 &wpa_s->sme.assoc_req_ie_len)) {
385 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
386 "key management and encryption suites");
387 wpas_connect_work_done(wpa_s);
388 return;
389 }
390#endif /* CONFIG_HS20 */
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700391 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
392 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
393 /*
394 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
395 * use non-WPA since the scan results did not indicate that the
396 * AP is using WPA or WPA2.
397 */
398 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
399 wpa_s->sme.assoc_req_ie_len = 0;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800400 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700401 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
402 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
403 wpa_s->sme.assoc_req_ie,
404 &wpa_s->sme.assoc_req_ie_len)) {
405 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
406 "key management and encryption suites (no "
407 "scan results)");
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800408 wpas_connect_work_done(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700409 return;
410 }
411#ifdef CONFIG_WPS
412 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
413 struct wpabuf *wps_ie;
414 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
415 if (wps_ie && wpabuf_len(wps_ie) <=
416 sizeof(wpa_s->sme.assoc_req_ie)) {
417 wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
418 os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
419 wpa_s->sme.assoc_req_ie_len);
420 } else
421 wpa_s->sme.assoc_req_ie_len = 0;
422 wpabuf_free(wps_ie);
423 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
424#endif /* CONFIG_WPS */
425 } else {
426 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
427 wpa_s->sme.assoc_req_ie_len = 0;
428 }
429
Hai Shalom39ba6fc2019-01-22 12:40:38 -0800430 /* In case the WPA vendor IE is used, it should be placed after all the
431 * non-vendor IEs, as the lower layer expects the IEs to be ordered as
432 * defined in the standard. Store the WPA IE so it can later be
433 * inserted at the correct location.
434 */
435 wpa_ie = NULL;
436 wpa_ie_len = 0;
437 if (wpa_s->wpa_proto == WPA_PROTO_WPA) {
438 wpa_ie = os_memdup(wpa_s->sme.assoc_req_ie,
439 wpa_s->sme.assoc_req_ie_len);
440 if (wpa_ie) {
441 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Storing WPA IE");
442
443 wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
444 wpa_s->sme.assoc_req_ie_len = 0;
445 } else {
446 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed copy WPA IE");
447 wpas_connect_work_done(wpa_s);
448 return;
449 }
450 }
451
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700452#ifdef CONFIG_IEEE80211R
453 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
454 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
455 md = ie + 2;
456 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
Hai Shalom021b0b52019-04-10 11:17:58 -0700457 if (md && (!wpa_key_mgmt_ft(ssid->key_mgmt) ||
458 !wpa_key_mgmt_ft(wpa_s->key_mgmt)))
459 md = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700460 if (md) {
461 /* Prepare for the next transition */
462 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
463 }
464
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700465 if (md) {
466 wpa_dbg(wpa_s, MSG_DEBUG, "SME: FT mobility domain %02x%02x",
467 md[0], md[1]);
468
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700469 if (wpa_s->sme.assoc_req_ie_len + 5 <
470 sizeof(wpa_s->sme.assoc_req_ie)) {
471 struct rsn_mdie *mdie;
472 u8 *pos = wpa_s->sme.assoc_req_ie +
473 wpa_s->sme.assoc_req_ie_len;
474 *pos++ = WLAN_EID_MOBILITY_DOMAIN;
475 *pos++ = sizeof(*mdie);
476 mdie = (struct rsn_mdie *) pos;
477 os_memcpy(mdie->mobility_domain, md,
478 MOBILITY_DOMAIN_ID_LEN);
479 mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
480 wpa_s->sme.assoc_req_ie_len += 5;
481 }
482
Hai Shalom74f70d42019-02-11 14:42:39 -0800483 if (wpa_s->sme.prev_bssid_set && wpa_s->sme.ft_used &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700484 os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 &&
485 wpa_sm_has_ptk(wpa_s->wpa)) {
486 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT "
487 "over-the-air");
488 params.auth_alg = WPA_AUTH_ALG_FT;
489 params.ie = wpa_s->sme.ft_ies;
490 params.ie_len = wpa_s->sme.ft_ies_len;
491 }
492 }
493#endif /* CONFIG_IEEE80211R */
494
495#ifdef CONFIG_IEEE80211W
Dmitry Shmidt807291d2015-01-27 13:40:23 -0800496 wpa_s->sme.mfp = wpas_get_ssid_pmf(wpa_s, ssid);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800497 if (wpa_s->sme.mfp != NO_MGMT_FRAME_PROTECTION) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700498 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
499 struct wpa_ie_data _ie;
500 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
501 _ie.capabilities &
502 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
503 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports "
504 "MFP: require MFP");
505 wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
506 }
507 }
508#endif /* CONFIG_IEEE80211W */
509
510#ifdef CONFIG_P2P
511 if (wpa_s->global->p2p) {
512 u8 *pos;
513 size_t len;
514 int res;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700515 pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
516 len = sizeof(wpa_s->sme.assoc_req_ie) -
517 wpa_s->sme.assoc_req_ie_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800518 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
519 ssid->p2p_group);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700520 if (res >= 0)
521 wpa_s->sme.assoc_req_ie_len += res;
522 }
523#endif /* CONFIG_P2P */
524
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800525#ifdef CONFIG_FST
526 if (wpa_s->fst_ies) {
527 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
528
529 if (wpa_s->sme.assoc_req_ie_len + fst_ies_len <=
530 sizeof(wpa_s->sme.assoc_req_ie)) {
531 os_memcpy(wpa_s->sme.assoc_req_ie +
532 wpa_s->sme.assoc_req_ie_len,
533 wpabuf_head(wpa_s->fst_ies),
534 fst_ies_len);
535 wpa_s->sme.assoc_req_ie_len += fst_ies_len;
536 }
537 }
538#endif /* CONFIG_FST */
539
540 sme_auth_handle_rrm(wpa_s, bss);
541
Dmitry Shmidt29333592017-01-09 12:27:11 -0800542 wpa_s->sme.assoc_req_ie_len += wpas_supp_op_class_ie(
Hai Shalom74f70d42019-02-11 14:42:39 -0800543 wpa_s, ssid, bss->freq,
Dmitry Shmidt29333592017-01-09 12:27:11 -0800544 wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
545 sizeof(wpa_s->sme.assoc_req_ie) - wpa_s->sme.assoc_req_ie_len);
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800546
Dmitry Shmidtd5ab1b52016-06-21 12:38:41 -0700547 if (params.p2p)
548 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
549 else
550 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
551
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800552 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
553 sizeof(ext_capab));
554 if (ext_capab_len > 0) {
555 u8 *pos = wpa_s->sme.assoc_req_ie;
556 if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN)
557 pos += 2 + pos[1];
558 os_memmove(pos + ext_capab_len, pos,
559 wpa_s->sme.assoc_req_ie_len -
560 (pos - wpa_s->sme.assoc_req_ie));
561 wpa_s->sme.assoc_req_ie_len += ext_capab_len;
562 os_memcpy(pos, ext_capab, ext_capab_len);
563 }
564
Dmitry Shmidt04949592012-07-19 12:16:46 -0700565#ifdef CONFIG_HS20
Dmitry Shmidt51b6ea82013-05-08 10:42:09 -0700566 if (is_hs20_network(wpa_s, ssid, bss)) {
Dmitry Shmidt04949592012-07-19 12:16:46 -0700567 struct wpabuf *hs20;
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800568
Roshan Pius3a1667e2018-07-03 15:17:14 -0700569 hs20 = wpabuf_alloc(20 + MAX_ROAMING_CONS_OI_LEN);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700570 if (hs20) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800571 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
Dmitry Shmidtc2817022014-07-02 10:32:10 -0700572 size_t len;
573
Hai Shalom74f70d42019-02-11 14:42:39 -0800574 wpas_hs20_add_indication(hs20, pps_mo_id,
575 get_hs20_version(bss));
Roshan Pius3a1667e2018-07-03 15:17:14 -0700576 wpas_hs20_add_roam_cons_sel(hs20, ssid);
Dmitry Shmidtc2817022014-07-02 10:32:10 -0700577 len = sizeof(wpa_s->sme.assoc_req_ie) -
578 wpa_s->sme.assoc_req_ie_len;
579 if (wpabuf_len(hs20) <= len) {
580 os_memcpy(wpa_s->sme.assoc_req_ie +
581 wpa_s->sme.assoc_req_ie_len,
582 wpabuf_head(hs20), wpabuf_len(hs20));
583 wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20);
584 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700585 wpabuf_free(hs20);
586 }
587 }
588#endif /* CONFIG_HS20 */
589
Hai Shalom39ba6fc2019-01-22 12:40:38 -0800590 if (wpa_ie) {
591 size_t len;
592
593 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Reinsert WPA IE");
594
595 len = sizeof(wpa_s->sme.assoc_req_ie) -
596 wpa_s->sme.assoc_req_ie_len;
597
598 if (len > wpa_ie_len) {
599 os_memcpy(wpa_s->sme.assoc_req_ie +
600 wpa_s->sme.assoc_req_ie_len,
601 wpa_ie, wpa_ie_len);
602 wpa_s->sme.assoc_req_ie_len += wpa_ie_len;
603 } else {
604 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Failed to add WPA IE");
605 }
606
607 os_free(wpa_ie);
608 }
609
Dmitry Shmidt2f74e362015-01-21 13:19:05 -0800610 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
611 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
612 size_t len;
613
614 len = sizeof(wpa_s->sme.assoc_req_ie) -
615 wpa_s->sme.assoc_req_ie_len;
616 if (wpabuf_len(buf) <= len) {
617 os_memcpy(wpa_s->sme.assoc_req_ie +
618 wpa_s->sme.assoc_req_ie_len,
619 wpabuf_head(buf), wpabuf_len(buf));
620 wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf);
621 }
622 }
623
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800624#ifdef CONFIG_MBO
Hai Shalomce48b4a2018-09-05 11:41:35 -0700625 mbo_ie = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
626 if (mbo_ie) {
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800627 int len;
628
629 len = wpas_mbo_ie(wpa_s, wpa_s->sme.assoc_req_ie +
630 wpa_s->sme.assoc_req_ie_len,
631 sizeof(wpa_s->sme.assoc_req_ie) -
Hai Shalomce48b4a2018-09-05 11:41:35 -0700632 wpa_s->sme.assoc_req_ie_len,
633 !!mbo_attr_from_mbo_ie(mbo_ie,
634 OCE_ATTR_ID_CAPA_IND));
Dmitry Shmidt57c2d392016-02-23 13:40:19 -0800635 if (len >= 0)
636 wpa_s->sme.assoc_req_ie_len += len;
637 }
638#endif /* CONFIG_MBO */
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800639
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800640#ifdef CONFIG_SAE
Dmitry Shmidt7f656022015-02-25 14:36:37 -0800641 if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE &&
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700642 pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, ssid, 0,
Hai Shalom021b0b52019-04-10 11:17:58 -0700643 NULL,
644 wpa_s->key_mgmt == WPA_KEY_MGMT_FT_SAE ?
645 WPA_KEY_MGMT_FT_SAE :
646 WPA_KEY_MGMT_SAE) == 0) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800647 wpa_dbg(wpa_s, MSG_DEBUG,
648 "PMKSA cache entry found - try to use PMKSA caching instead of new SAE authentication");
Roshan Pius3a1667e2018-07-03 15:17:14 -0700649 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800650 params.auth_alg = WPA_AUTH_ALG_OPEN;
651 wpa_s->sme.sae_pmksa_caching = 1;
652 }
653
Dmitry Shmidt7f656022015-02-25 14:36:37 -0800654 if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE) {
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800655 if (start)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800656 resp = sme_auth_build_sae_commit(wpa_s, ssid,
Hai Shalom021b0b52019-04-10 11:17:58 -0700657 bss->bssid, 0,
658 start == 2);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800659 else
Roshan Pius3a1667e2018-07-03 15:17:14 -0700660 resp = sme_auth_build_sae_confirm(wpa_s, 0);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800661 if (resp == NULL) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800662 wpas_connection_failed(wpa_s, bss->bssid);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800663 return;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800664 }
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800665 params.auth_data = wpabuf_head(resp);
666 params.auth_data_len = wpabuf_len(resp);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800667 wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED;
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800668 }
669#endif /* CONFIG_SAE */
670
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800671 old_ssid = wpa_s->current_ssid;
672 wpa_s->current_ssid = ssid;
673 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
674 wpa_supplicant_initiate_eapol(wpa_s);
675
676#ifdef CONFIG_FILS
677 /* TODO: FILS operations can in some cases be done between different
678 * network_ctx (i.e., same credentials can be used with multiple
679 * networks). */
680 if (params.auth_alg == WPA_AUTH_ALG_OPEN &&
681 wpa_key_mgmt_fils(ssid->key_mgmt)) {
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700682 const u8 *indic;
683 u16 fils_info;
Hai Shalomce48b4a2018-09-05 11:41:35 -0700684 const u8 *realm, *username, *rrk;
685 size_t realm_len, username_len, rrk_len;
686 u16 next_seq_num;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700687
688 /*
689 * Check FILS Indication element (FILS Information field) bits
690 * indicating supported authentication algorithms against local
691 * configuration (ssid->fils_dh_group). Try to use FILS
692 * authentication only if the AP supports the combination in the
693 * network profile. */
694 indic = wpa_bss_get_ie(bss, WLAN_EID_FILS_INDICATION);
695 if (!indic || indic[1] < 2) {
696 wpa_printf(MSG_DEBUG, "SME: " MACSTR
697 " does not include FILS Indication element - cannot use FILS authentication with it",
698 MAC2STR(bss->bssid));
699 goto no_fils;
700 }
701
702 fils_info = WPA_GET_LE16(indic + 2);
703 if (ssid->fils_dh_group == 0 && !(fils_info & BIT(9))) {
704 wpa_printf(MSG_DEBUG, "SME: " MACSTR
705 " does not support FILS SK without PFS - cannot use FILS authentication with it",
706 MAC2STR(bss->bssid));
707 goto no_fils;
708 }
709 if (ssid->fils_dh_group != 0 && !(fils_info & BIT(10))) {
710 wpa_printf(MSG_DEBUG, "SME: " MACSTR
711 " does not support FILS SK with PFS - cannot use FILS authentication with it",
712 MAC2STR(bss->bssid));
713 goto no_fils;
714 }
715
Hai Shalomce48b4a2018-09-05 11:41:35 -0700716 if (wpa_s->last_con_fail_realm &&
717 eapol_sm_get_erp_info(wpa_s->eapol, &ssid->eap,
718 &username, &username_len,
719 &realm, &realm_len, &next_seq_num,
720 &rrk, &rrk_len) == 0 &&
721 realm && realm_len == wpa_s->last_con_fail_realm_len &&
722 os_memcmp(realm, wpa_s->last_con_fail_realm,
723 realm_len) == 0) {
724 wpa_printf(MSG_DEBUG,
725 "SME: FILS authentication for this realm failed last time - try to regenerate ERP key hierarchy");
726 goto no_fils;
727 }
728
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800729 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700730 ssid, 0,
Roshan Pius3a1667e2018-07-03 15:17:14 -0700731 wpa_bss_get_fils_cache_id(bss),
732 0) == 0)
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800733 wpa_printf(MSG_DEBUG,
734 "SME: Try to use FILS with PMKSA caching");
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700735 resp = fils_build_auth(wpa_s->wpa, ssid->fils_dh_group, md);
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800736 if (resp) {
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700737 int auth_alg;
738
739 if (ssid->fils_dh_group)
740 wpa_printf(MSG_DEBUG,
741 "SME: Try to use FILS SK authentication with PFS (DH Group %u)",
742 ssid->fils_dh_group);
743 else
744 wpa_printf(MSG_DEBUG,
745 "SME: Try to use FILS SK authentication without PFS");
746 auth_alg = ssid->fils_dh_group ?
747 WPA_AUTH_ALG_FILS_SK_PFS : WPA_AUTH_ALG_FILS;
748 params.auth_alg = auth_alg;
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800749 params.auth_data = wpabuf_head(resp);
750 params.auth_data_len = wpabuf_len(resp);
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700751 wpa_s->sme.auth_alg = auth_alg;
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800752 }
753 }
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700754no_fils:
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800755#endif /* CONFIG_FILS */
756
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800757 wpa_supplicant_cancel_sched_scan(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700758 wpa_supplicant_cancel_scan(wpa_s);
759
760 wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR
761 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
762 wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
763
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700764 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700765 wpa_clear_keys(wpa_s, bss->bssid);
766 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700767 if (old_ssid != wpa_s->current_ssid)
768 wpas_notify_network_changed(wpa_s);
769
Dmitry Shmidt849734c2016-05-27 09:59:01 -0700770#ifdef CONFIG_HS20
771 hs20_configure_frame_filters(wpa_s);
772#endif /* CONFIG_HS20 */
773
Dmitry Shmidtf9bdef92014-04-25 10:46:36 -0700774#ifdef CONFIG_P2P
775 /*
776 * If multi-channel concurrency is not supported, check for any
777 * frequency conflict. In case of any frequency conflict, remove the
778 * least prioritized connection.
779 */
780 if (wpa_s->num_multichan_concurrent < 2) {
781 int freq, num;
782 num = get_shared_radio_freqs(wpa_s, &freq, 1);
783 if (num > 0 && freq > 0 && freq != params.freq) {
784 wpa_printf(MSG_DEBUG,
785 "Conflicting frequency found (%d != %d)",
786 freq, params.freq);
787 if (wpas_p2p_handle_frequency_conflicts(wpa_s,
788 params.freq,
789 ssid) < 0) {
790 wpas_connection_failed(wpa_s, bss->bssid);
791 wpa_supplicant_mark_disassoc(wpa_s);
792 wpabuf_free(resp);
793 wpas_connect_work_done(wpa_s);
794 return;
795 }
796 }
797 }
798#endif /* CONFIG_P2P */
799
Dmitry Shmidt7f656022015-02-25 14:36:37 -0800800 if (skip_auth) {
801 wpa_msg(wpa_s, MSG_DEBUG,
802 "SME: Skip authentication step on reassoc-to-same-BSS");
803 wpabuf_free(resp);
804 sme_associate(wpa_s, ssid->mode, bss->bssid, WLAN_AUTH_OPEN);
805 return;
806 }
807
808
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700809 wpa_s->sme.auth_alg = params.auth_alg;
810 if (wpa_drv_authenticate(wpa_s, &params) < 0) {
811 wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
812 "driver failed");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800813 wpas_connection_failed(wpa_s, bss->bssid);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800814 wpa_supplicant_mark_disassoc(wpa_s);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800815 wpabuf_free(resp);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800816 wpas_connect_work_done(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700817 return;
818 }
819
820 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
821 NULL);
822
823 /*
824 * Association will be started based on the authentication event from
825 * the driver.
826 */
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800827
828 wpabuf_free(resp);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700829}
830
831
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800832static void sme_auth_start_cb(struct wpa_radio_work *work, int deinit)
833{
834 struct wpa_connect_work *cwork = work->ctx;
835 struct wpa_supplicant *wpa_s = work->wpa_s;
836
837 if (deinit) {
Dmitry Shmidtbd14a572014-02-18 10:33:49 -0800838 if (work->started)
839 wpa_s->connect_work = NULL;
840
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800841 wpas_connect_work_free(cwork);
842 return;
843 }
844
845 wpa_s->connect_work = work;
846
Dmitry Shmidt2e425d62014-11-10 11:18:27 -0800847 if (cwork->bss_removed ||
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800848 !wpas_valid_bss_ssid(wpa_s, cwork->bss, cwork->ssid) ||
849 wpas_network_disabled(wpa_s, cwork->ssid)) {
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800850 wpa_dbg(wpa_s, MSG_DEBUG, "SME: BSS/SSID entry for authentication not valid anymore - drop connection attempt");
851 wpas_connect_work_done(wpa_s);
852 return;
853 }
854
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -0800855 /* Starting new connection, so clear the possibly used WPA IE from the
856 * previous association. */
857 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
858
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800859 sme_send_authentication(wpa_s, cwork->bss, cwork->ssid, 1);
860}
861
862
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800863void sme_authenticate(struct wpa_supplicant *wpa_s,
864 struct wpa_bss *bss, struct wpa_ssid *ssid)
865{
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800866 struct wpa_connect_work *cwork;
867
868 if (bss == NULL || ssid == NULL)
869 return;
870 if (wpa_s->connect_work) {
871 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reject sme_authenticate() call since connect_work exist");
872 return;
873 }
874
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800875 if (radio_work_pending(wpa_s, "sme-connect")) {
Dmitry Shmidtdf5a7e42014-04-02 12:59:59 -0700876 /*
877 * The previous sme-connect work might no longer be valid due to
878 * the fact that the BSS list was updated. In addition, it makes
879 * sense to adhere to the 'newer' decision.
880 */
881 wpa_dbg(wpa_s, MSG_DEBUG,
882 "SME: Remove previous pending sme-connect");
883 radio_remove_works(wpa_s, "sme-connect", 0);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800884 }
885
Dmitry Shmidtd7ff03d2015-12-04 14:49:35 -0800886 wpas_abort_ongoing_scan(wpa_s);
887
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800888 cwork = os_zalloc(sizeof(*cwork));
889 if (cwork == NULL)
890 return;
891 cwork->bss = bss;
892 cwork->ssid = ssid;
893 cwork->sme = 1;
894
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800895#ifdef CONFIG_SAE
896 wpa_s->sme.sae.state = SAE_NOTHING;
897 wpa_s->sme.sae.send_confirm = 0;
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800898 wpa_s->sme.sae_group_index = 0;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800899#endif /* CONFIG_SAE */
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800900
901 if (radio_add_work(wpa_s, bss->freq, "sme-connect", 1,
902 sme_auth_start_cb, cwork) < 0)
903 wpas_connect_work_free(cwork);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800904}
905
906
907#ifdef CONFIG_SAE
908
Roshan Pius3a1667e2018-07-03 15:17:14 -0700909static int sme_external_auth_build_buf(struct wpabuf *buf,
910 struct wpabuf *params,
911 const u8 *sa, const u8 *da,
912 u16 auth_transaction, u16 seq_num)
913{
914 struct ieee80211_mgmt *resp;
915
916 resp = wpabuf_put(buf, offsetof(struct ieee80211_mgmt,
917 u.auth.variable));
918
919 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
920 (WLAN_FC_STYPE_AUTH << 4));
921 os_memcpy(resp->da, da, ETH_ALEN);
922 os_memcpy(resp->sa, sa, ETH_ALEN);
923 os_memcpy(resp->bssid, da, ETH_ALEN);
Hai Shalom74f70d42019-02-11 14:42:39 -0800924 resp->u.auth.auth_alg = host_to_le16(WLAN_AUTH_SAE);
925 resp->seq_ctrl = host_to_le16(seq_num << 4);
926 resp->u.auth.auth_transaction = host_to_le16(auth_transaction);
927 resp->u.auth.status_code = host_to_le16(WLAN_STATUS_SUCCESS);
Roshan Pius3a1667e2018-07-03 15:17:14 -0700928 if (params)
929 wpabuf_put_buf(buf, params);
930
931 return 0;
932}
933
934
935static void sme_external_auth_send_sae_commit(struct wpa_supplicant *wpa_s,
936 const u8 *bssid,
937 struct wpa_ssid *ssid)
938{
939 struct wpabuf *resp, *buf;
940
Hai Shalom021b0b52019-04-10 11:17:58 -0700941 resp = sme_auth_build_sae_commit(wpa_s, ssid, bssid, 1, 0);
Roshan Pius3a1667e2018-07-03 15:17:14 -0700942 if (!resp)
943 return;
944
945 wpa_s->sme.sae.state = SAE_COMMITTED;
946 buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + wpabuf_len(resp));
947 if (!buf) {
948 wpabuf_free(resp);
949 return;
950 }
951
952 wpa_s->sme.seq_num++;
953 sme_external_auth_build_buf(buf, resp, wpa_s->own_addr,
954 bssid, 1, wpa_s->sme.seq_num);
955 wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1, 0);
956 wpabuf_free(resp);
957 wpabuf_free(buf);
958}
959
960
961static void sme_send_external_auth_status(struct wpa_supplicant *wpa_s,
962 u16 status)
963{
964 struct external_auth params;
965
966 os_memset(&params, 0, sizeof(params));
967 params.status = status;
968 os_memcpy(params.ssid, wpa_s->sme.ext_auth.ssid,
969 wpa_s->sme.ext_auth.ssid_len);
970 params.ssid_len = wpa_s->sme.ext_auth.ssid_len;
971 os_memcpy(params.bssid, wpa_s->sme.ext_auth.bssid, ETH_ALEN);
972 wpa_drv_send_external_auth_status(wpa_s, &params);
973}
974
975
976static void sme_handle_external_auth_start(struct wpa_supplicant *wpa_s,
977 union wpa_event_data *data)
978{
979 struct wpa_ssid *ssid;
980 size_t ssid_str_len = data->external_auth.ssid_len;
981 u8 *ssid_str = data->external_auth.ssid;
982
983 /* Get the SSID conf from the ssid string obtained */
984 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
985 if (!wpas_network_disabled(wpa_s, ssid) &&
986 ssid_str_len == ssid->ssid_len &&
Hai Shalom74f70d42019-02-11 14:42:39 -0800987 os_memcmp(ssid_str, ssid->ssid, ssid_str_len) == 0 &&
Hai Shalom021b0b52019-04-10 11:17:58 -0700988 (ssid->key_mgmt & (WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE)))
Roshan Pius3a1667e2018-07-03 15:17:14 -0700989 break;
990 }
991 if (ssid)
992 sme_external_auth_send_sae_commit(wpa_s,
993 data->external_auth.bssid,
994 ssid);
995 else
996 sme_send_external_auth_status(wpa_s,
997 WLAN_STATUS_UNSPECIFIED_FAILURE);
998}
999
1000
1001static void sme_external_auth_send_sae_confirm(struct wpa_supplicant *wpa_s,
1002 const u8 *da)
1003{
1004 struct wpabuf *resp, *buf;
1005
1006 resp = sme_auth_build_sae_confirm(wpa_s, 1);
1007 if (!resp) {
1008 wpa_printf(MSG_DEBUG, "SAE: Confirm message buf alloc failure");
1009 return;
1010 }
1011
1012 wpa_s->sme.sae.state = SAE_CONFIRMED;
1013 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN + wpabuf_len(resp));
1014 if (!buf) {
1015 wpa_printf(MSG_DEBUG, "SAE: Auth Confirm buf alloc failure");
1016 wpabuf_free(resp);
1017 return;
1018 }
1019 wpa_s->sme.seq_num++;
1020 sme_external_auth_build_buf(buf, resp, wpa_s->own_addr,
1021 da, 2, wpa_s->sme.seq_num);
1022 wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1, 0);
1023 wpabuf_free(resp);
1024 wpabuf_free(buf);
1025}
1026
1027
1028void sme_external_auth_trigger(struct wpa_supplicant *wpa_s,
1029 union wpa_event_data *data)
1030{
1031 if (RSN_SELECTOR_GET(&data->external_auth.key_mgmt_suite) !=
1032 RSN_AUTH_KEY_MGMT_SAE)
1033 return;
1034
1035 if (data->external_auth.action == EXT_AUTH_START) {
1036 os_memcpy(&wpa_s->sme.ext_auth, data,
1037 sizeof(struct external_auth));
1038 wpa_s->sme.seq_num = 0;
1039 wpa_s->sme.sae.state = SAE_NOTHING;
1040 wpa_s->sme.sae.send_confirm = 0;
1041 wpa_s->sme.sae_group_index = 0;
1042 sme_handle_external_auth_start(wpa_s, data);
1043 } else if (data->external_auth.action == EXT_AUTH_ABORT) {
1044 /* Report failure to driver for the wrong trigger */
1045 sme_send_external_auth_status(wpa_s,
1046 WLAN_STATUS_UNSPECIFIED_FAILURE);
1047 }
1048}
1049
1050
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001051static int sme_sae_auth(struct wpa_supplicant *wpa_s, u16 auth_transaction,
Roshan Pius3a1667e2018-07-03 15:17:14 -07001052 u16 status_code, const u8 *data, size_t len,
1053 int external, const u8 *sa)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001054{
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001055 int *groups;
1056
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001057 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE authentication transaction %u "
1058 "status code %u", auth_transaction, status_code);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001059
1060 if (auth_transaction == 1 &&
1061 status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ &&
1062 wpa_s->sme.sae.state == SAE_COMMITTED &&
Roshan Pius3a1667e2018-07-03 15:17:14 -07001063 (external || wpa_s->current_bss) && wpa_s->current_ssid) {
Hai Shalom021b0b52019-04-10 11:17:58 -07001064 int default_groups[] = { 19, 20, 21, 0 };
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001065 u16 group;
1066
1067 groups = wpa_s->conf->sae_groups;
1068 if (!groups || groups[0] <= 0)
1069 groups = default_groups;
1070
1071 if (len < sizeof(le16)) {
1072 wpa_dbg(wpa_s, MSG_DEBUG,
1073 "SME: Too short SAE anti-clogging token request");
1074 return -1;
1075 }
1076 group = WPA_GET_LE16(data);
1077 wpa_dbg(wpa_s, MSG_DEBUG,
1078 "SME: SAE anti-clogging token requested (group %u)",
1079 group);
1080 if (sae_group_allowed(&wpa_s->sme.sae, groups, group) !=
1081 WLAN_STATUS_SUCCESS) {
1082 wpa_dbg(wpa_s, MSG_ERROR,
1083 "SME: SAE group %u of anti-clogging request is invalid",
1084 group);
1085 return -1;
1086 }
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001087 wpabuf_free(wpa_s->sme.sae_token);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001088 wpa_s->sme.sae_token = wpabuf_alloc_copy(data + sizeof(le16),
1089 len - sizeof(le16));
Roshan Pius3a1667e2018-07-03 15:17:14 -07001090 if (!external)
1091 sme_send_authentication(wpa_s, wpa_s->current_bss,
Hai Shalom021b0b52019-04-10 11:17:58 -07001092 wpa_s->current_ssid, 2);
Roshan Pius3a1667e2018-07-03 15:17:14 -07001093 else
1094 sme_external_auth_send_sae_commit(
1095 wpa_s, wpa_s->sme.ext_auth.bssid,
1096 wpa_s->current_ssid);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001097 return 0;
1098 }
1099
1100 if (auth_transaction == 1 &&
1101 status_code == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
1102 wpa_s->sme.sae.state == SAE_COMMITTED &&
Roshan Pius3a1667e2018-07-03 15:17:14 -07001103 (external || wpa_s->current_bss) && wpa_s->current_ssid) {
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001104 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE group not supported");
1105 wpa_s->sme.sae_group_index++;
1106 if (sme_set_sae_group(wpa_s) < 0)
1107 return -1; /* no other groups enabled */
1108 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Try next enabled SAE group");
Roshan Pius3a1667e2018-07-03 15:17:14 -07001109 if (!external)
1110 sme_send_authentication(wpa_s, wpa_s->current_bss,
1111 wpa_s->current_ssid, 1);
1112 else
1113 sme_external_auth_send_sae_commit(
1114 wpa_s, wpa_s->sme.ext_auth.bssid,
1115 wpa_s->current_ssid);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001116 return 0;
1117 }
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001118
Roshan Pius3a1667e2018-07-03 15:17:14 -07001119 if (auth_transaction == 1 &&
1120 status_code == WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER) {
1121 const u8 *bssid = sa ? sa : wpa_s->pending_bssid;
1122
1123 wpa_msg(wpa_s, MSG_INFO,
1124 WPA_EVENT_SAE_UNKNOWN_PASSWORD_IDENTIFIER MACSTR,
1125 MAC2STR(bssid));
1126 return -1;
1127 }
1128
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001129 if (status_code != WLAN_STATUS_SUCCESS)
1130 return -1;
1131
1132 if (auth_transaction == 1) {
Dmitry Shmidt41712582015-06-29 11:02:15 -07001133 u16 res;
1134
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001135 groups = wpa_s->conf->sae_groups;
Dmitry Shmidtcce06662013-11-04 18:44:24 -08001136
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001137 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE commit");
Roshan Pius3a1667e2018-07-03 15:17:14 -07001138 if ((!external && wpa_s->current_bss == NULL) ||
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001139 wpa_s->current_ssid == NULL)
1140 return -1;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001141 if (wpa_s->sme.sae.state != SAE_COMMITTED)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001142 return -1;
Dmitry Shmidtcce06662013-11-04 18:44:24 -08001143 if (groups && groups[0] <= 0)
1144 groups = NULL;
Dmitry Shmidt41712582015-06-29 11:02:15 -07001145 res = sae_parse_commit(&wpa_s->sme.sae, data, len, NULL, NULL,
1146 groups);
1147 if (res == SAE_SILENTLY_DISCARD) {
1148 wpa_printf(MSG_DEBUG,
1149 "SAE: Drop commit message due to reflection attack");
1150 return 0;
1151 }
1152 if (res != WLAN_STATUS_SUCCESS)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001153 return -1;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001154
1155 if (sae_process_commit(&wpa_s->sme.sae) < 0) {
1156 wpa_printf(MSG_DEBUG, "SAE: Failed to process peer "
1157 "commit");
1158 return -1;
1159 }
1160
1161 wpabuf_free(wpa_s->sme.sae_token);
1162 wpa_s->sme.sae_token = NULL;
Roshan Pius3a1667e2018-07-03 15:17:14 -07001163 if (!external)
1164 sme_send_authentication(wpa_s, wpa_s->current_bss,
1165 wpa_s->current_ssid, 0);
1166 else
1167 sme_external_auth_send_sae_confirm(wpa_s, sa);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001168 return 0;
1169 } else if (auth_transaction == 2) {
1170 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE confirm");
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001171 if (wpa_s->sme.sae.state != SAE_CONFIRMED)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001172 return -1;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001173 if (sae_check_confirm(&wpa_s->sme.sae, data, len) < 0)
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001174 return -1;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001175 wpa_s->sme.sae.state = SAE_ACCEPTED;
1176 sae_clear_temp_data(&wpa_s->sme.sae);
Roshan Pius3a1667e2018-07-03 15:17:14 -07001177
1178 if (external) {
1179 /* Report success to driver */
1180 sme_send_external_auth_status(wpa_s,
1181 WLAN_STATUS_SUCCESS);
1182 }
1183
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001184 return 1;
1185 }
1186
1187 return -1;
1188}
Roshan Pius3a1667e2018-07-03 15:17:14 -07001189
1190
1191void sme_external_auth_mgmt_rx(struct wpa_supplicant *wpa_s,
1192 const u8 *auth_frame, size_t len)
1193{
1194 const struct ieee80211_mgmt *header;
1195 size_t auth_length;
1196
1197 header = (const struct ieee80211_mgmt *) auth_frame;
1198 auth_length = IEEE80211_HDRLEN + sizeof(header->u.auth);
1199
1200 if (len < auth_length) {
1201 /* Notify failure to the driver */
1202 sme_send_external_auth_status(wpa_s,
1203 WLAN_STATUS_UNSPECIFIED_FAILURE);
1204 return;
1205 }
1206
Hai Shalom74f70d42019-02-11 14:42:39 -08001207 if (le_to_host16(header->u.auth.auth_alg) == WLAN_AUTH_SAE) {
Roshan Pius3a1667e2018-07-03 15:17:14 -07001208 int res;
1209
Hai Shalom74f70d42019-02-11 14:42:39 -08001210 res = sme_sae_auth(
1211 wpa_s, le_to_host16(header->u.auth.auth_transaction),
1212 le_to_host16(header->u.auth.status_code),
1213 header->u.auth.variable,
1214 len - auth_length, 1, header->sa);
Roshan Pius3a1667e2018-07-03 15:17:14 -07001215 if (res < 0) {
1216 /* Notify failure to the driver */
1217 sme_send_external_auth_status(
1218 wpa_s, WLAN_STATUS_UNSPECIFIED_FAILURE);
1219 return;
1220 }
1221 if (res != 1)
1222 return;
1223
1224 wpa_printf(MSG_DEBUG,
1225 "SME: SAE completed - setting PMK for 4-way handshake");
1226 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
1227 wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
1228 }
1229}
1230
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001231#endif /* CONFIG_SAE */
1232
1233
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001234void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
1235{
1236 struct wpa_ssid *ssid = wpa_s->current_ssid;
1237
1238 if (ssid == NULL) {
1239 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
1240 "when network is not selected");
1241 return;
1242 }
1243
1244 if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
1245 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
1246 "when not in authenticating state");
1247 return;
1248 }
1249
1250 if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
1251 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication with "
1252 "unexpected peer " MACSTR,
1253 MAC2STR(data->auth.peer));
1254 return;
1255 }
1256
1257 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001258 " auth_type=%d auth_transaction=%d status_code=%d",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001259 MAC2STR(data->auth.peer), data->auth.auth_type,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001260 data->auth.auth_transaction, data->auth.status_code);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001261 wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
1262 data->auth.ies, data->auth.ies_len);
1263
1264 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1265
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001266#ifdef CONFIG_SAE
1267 if (data->auth.auth_type == WLAN_AUTH_SAE) {
1268 int res;
1269 res = sme_sae_auth(wpa_s, data->auth.auth_transaction,
1270 data->auth.status_code, data->auth.ies,
Roshan Pius3a1667e2018-07-03 15:17:14 -07001271 data->auth.ies_len, 0, NULL);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001272 if (res < 0) {
1273 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1274 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1275
1276 }
1277 if (res != 1)
1278 return;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001279
1280 wpa_printf(MSG_DEBUG, "SME: SAE completed - setting PMK for "
1281 "4-way handshake");
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001282 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
Dmitry Shmidt57c2d392016-02-23 13:40:19 -08001283 wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001284 }
1285#endif /* CONFIG_SAE */
1286
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001287 if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001288 char *ie_txt = NULL;
1289
1290 if (data->auth.ies && data->auth.ies_len) {
1291 size_t buflen = 2 * data->auth.ies_len + 1;
1292 ie_txt = os_malloc(buflen);
1293 if (ie_txt) {
1294 wpa_snprintf_hex(ie_txt, buflen, data->auth.ies,
1295 data->auth.ies_len);
1296 }
1297 }
1298 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AUTH_REJECT MACSTR
Dmitry Shmidtebd93af2017-02-21 13:40:44 -08001299 " auth_type=%u auth_transaction=%u status_code=%u%s%s",
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001300 MAC2STR(data->auth.peer), data->auth.auth_type,
1301 data->auth.auth_transaction, data->auth.status_code,
Dmitry Shmidtebd93af2017-02-21 13:40:44 -08001302 ie_txt ? " ie=" : "",
1303 ie_txt ? ie_txt : "");
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001304 os_free(ie_txt);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001305
Hai Shalomce48b4a2018-09-05 11:41:35 -07001306#ifdef CONFIG_FILS
1307 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
1308 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS)
1309 fils_connection_failure(wpa_s);
1310#endif /* CONFIG_FILS */
1311
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001312 if (data->auth.status_code !=
1313 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
1314 wpa_s->sme.auth_alg == data->auth.auth_type ||
1315 wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
1316 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001317 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001318 return;
1319 }
1320
Dmitry Shmidt97672262014-02-03 13:02:54 -08001321 wpas_connect_work_done(wpa_s);
1322
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001323 switch (data->auth.auth_type) {
1324 case WLAN_AUTH_OPEN:
1325 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
1326
1327 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying SHARED auth");
1328 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
1329 wpa_s->current_ssid);
1330 return;
1331
1332 case WLAN_AUTH_SHARED_KEY:
1333 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_LEAP;
1334
1335 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying LEAP auth");
1336 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
1337 wpa_s->current_ssid);
1338 return;
1339
1340 default:
1341 return;
1342 }
1343 }
1344
1345#ifdef CONFIG_IEEE80211R
1346 if (data->auth.auth_type == WLAN_AUTH_FT) {
Dmitry Shmidtebd93af2017-02-21 13:40:44 -08001347 const u8 *ric_ies = NULL;
1348 size_t ric_ies_len = 0;
1349
1350 if (wpa_s->ric_ies) {
1351 ric_ies = wpabuf_head(wpa_s->ric_ies);
1352 ric_ies_len = wpabuf_len(wpa_s->ric_ies);
1353 }
Dmitry Shmidt41712582015-06-29 11:02:15 -07001354 if (wpa_ft_process_response(wpa_s->wpa, data->auth.ies,
1355 data->auth.ies_len, 0,
Dmitry Shmidtebd93af2017-02-21 13:40:44 -08001356 data->auth.peer,
1357 ric_ies, ric_ies_len) < 0) {
Dmitry Shmidt41712582015-06-29 11:02:15 -07001358 wpa_dbg(wpa_s, MSG_DEBUG,
1359 "SME: FT Authentication response processing failed");
1360 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1361 MACSTR
1362 " reason=%d locally_generated=1",
1363 MAC2STR(wpa_s->pending_bssid),
1364 WLAN_REASON_DEAUTH_LEAVING);
1365 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1366 wpa_supplicant_mark_disassoc(wpa_s);
1367 return;
1368 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001369 }
1370#endif /* CONFIG_IEEE80211R */
1371
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001372#ifdef CONFIG_FILS
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001373 if (data->auth.auth_type == WLAN_AUTH_FILS_SK ||
1374 data->auth.auth_type == WLAN_AUTH_FILS_SK_PFS) {
1375 u16 expect_auth_type;
1376
1377 expect_auth_type = wpa_s->sme.auth_alg ==
1378 WPA_AUTH_ALG_FILS_SK_PFS ? WLAN_AUTH_FILS_SK_PFS :
1379 WLAN_AUTH_FILS_SK;
1380 if (data->auth.auth_type != expect_auth_type) {
1381 wpa_dbg(wpa_s, MSG_DEBUG,
1382 "SME: FILS Authentication response used different auth alg (%u; expected %u)",
1383 data->auth.auth_type, expect_auth_type);
1384 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1385 MACSTR
1386 " reason=%d locally_generated=1",
1387 MAC2STR(wpa_s->pending_bssid),
1388 WLAN_REASON_DEAUTH_LEAVING);
1389 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1390 wpa_supplicant_mark_disassoc(wpa_s);
1391 return;
1392 }
1393
1394 if (fils_process_auth(wpa_s->wpa, wpa_s->pending_bssid,
1395 data->auth.ies, data->auth.ies_len) < 0) {
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001396 wpa_dbg(wpa_s, MSG_DEBUG,
1397 "SME: FILS Authentication response processing failed");
1398 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1399 MACSTR
1400 " reason=%d locally_generated=1",
1401 MAC2STR(wpa_s->pending_bssid),
1402 WLAN_REASON_DEAUTH_LEAVING);
1403 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1404 wpa_supplicant_mark_disassoc(wpa_s);
1405 return;
1406 }
1407 }
1408#endif /* CONFIG_FILS */
1409
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001410 sme_associate(wpa_s, ssid->mode, data->auth.peer,
1411 data->auth.auth_type);
1412}
1413
1414
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001415#ifdef CONFIG_IEEE80211R
1416static void remove_ie(u8 *buf, size_t *len, u8 eid)
1417{
1418 u8 *pos, *next, *end;
1419
1420 pos = (u8 *) get_ie(buf, *len, eid);
1421 if (pos) {
1422 next = pos + 2 + pos[1];
1423 end = buf + *len;
1424 *len -= 2 + pos[1];
1425 os_memmove(pos, next, end - next);
1426 }
1427}
1428#endif /* CONFIG_IEEE80211R */
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001429
1430
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001431void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
1432 const u8 *bssid, u16 auth_type)
1433{
1434 struct wpa_driver_associate_params params;
1435 struct ieee802_11_elems elems;
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001436#ifdef CONFIG_FILS
1437 u8 nonces[2 * FILS_NONCE_LEN];
1438#endif /* CONFIG_FILS */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001439#ifdef CONFIG_HT_OVERRIDES
1440 struct ieee80211_ht_capabilities htcaps;
1441 struct ieee80211_ht_capabilities htcaps_mask;
1442#endif /* CONFIG_HT_OVERRIDES */
Dmitry Shmidt2f023192013-03-12 12:44:17 -07001443#ifdef CONFIG_VHT_OVERRIDES
1444 struct ieee80211_vht_capabilities vhtcaps;
1445 struct ieee80211_vht_capabilities vhtcaps_mask;
1446#endif /* CONFIG_VHT_OVERRIDES */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001447
1448 os_memset(&params, 0, sizeof(params));
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001449
1450#ifdef CONFIG_FILS
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001451 if (auth_type == WLAN_AUTH_FILS_SK ||
1452 auth_type == WLAN_AUTH_FILS_SK_PFS) {
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001453 struct wpabuf *buf;
1454 const u8 *snonce, *anonce;
Paul Stewart092955c2017-02-06 09:13:09 -08001455 const unsigned int max_hlp = 20;
1456 struct wpabuf *hlp[max_hlp];
1457 unsigned int i, num_hlp = 0;
1458 struct fils_hlp_req *req;
1459
1460 dl_list_for_each(req, &wpa_s->fils_hlp_req, struct fils_hlp_req,
1461 list) {
1462 hlp[num_hlp] = wpabuf_alloc(2 * ETH_ALEN + 6 +
1463 wpabuf_len(req->pkt));
1464 if (!hlp[num_hlp])
1465 break;
1466 wpabuf_put_data(hlp[num_hlp], req->dst, ETH_ALEN);
1467 wpabuf_put_data(hlp[num_hlp], wpa_s->own_addr,
1468 ETH_ALEN);
1469 wpabuf_put_data(hlp[num_hlp],
1470 "\xaa\xaa\x03\x00\x00\x00", 6);
1471 wpabuf_put_buf(hlp[num_hlp], req->pkt);
1472 num_hlp++;
1473 if (num_hlp >= max_hlp)
1474 break;
1475 }
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001476
1477 buf = fils_build_assoc_req(wpa_s->wpa, &params.fils_kek,
1478 &params.fils_kek_len, &snonce,
Paul Stewart092955c2017-02-06 09:13:09 -08001479 &anonce,
1480 (const struct wpabuf **) hlp,
1481 num_hlp);
1482 for (i = 0; i < num_hlp; i++)
1483 wpabuf_free(hlp[i]);
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001484 if (!buf)
1485 return;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001486 wpa_hexdump(MSG_DEBUG, "FILS: assoc_req before FILS elements",
1487 wpa_s->sme.assoc_req_ie,
1488 wpa_s->sme.assoc_req_ie_len);
1489#ifdef CONFIG_IEEE80211R
1490 if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
1491 /* Remove RSNE and MDE to allow them to be overridden
1492 * with FILS+FT specific values from
1493 * fils_build_assoc_req(). */
1494 remove_ie(wpa_s->sme.assoc_req_ie,
1495 &wpa_s->sme.assoc_req_ie_len,
1496 WLAN_EID_RSN);
1497 wpa_hexdump(MSG_DEBUG,
1498 "FILS: assoc_req after RSNE removal",
1499 wpa_s->sme.assoc_req_ie,
1500 wpa_s->sme.assoc_req_ie_len);
1501 remove_ie(wpa_s->sme.assoc_req_ie,
1502 &wpa_s->sme.assoc_req_ie_len,
1503 WLAN_EID_MOBILITY_DOMAIN);
1504 wpa_hexdump(MSG_DEBUG,
1505 "FILS: assoc_req after MDE removal",
1506 wpa_s->sme.assoc_req_ie,
1507 wpa_s->sme.assoc_req_ie_len);
1508 }
1509#endif /* CONFIG_IEEE80211R */
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001510 /* TODO: Make wpa_s->sme.assoc_req_ie use dynamic allocation */
1511 if (wpa_s->sme.assoc_req_ie_len + wpabuf_len(buf) >
1512 sizeof(wpa_s->sme.assoc_req_ie)) {
1513 wpa_printf(MSG_ERROR,
1514 "FILS: Not enough buffer room for own AssocReq elements");
1515 wpabuf_free(buf);
1516 return;
1517 }
1518 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1519 wpabuf_head(buf), wpabuf_len(buf));
1520 wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf);
1521 wpabuf_free(buf);
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001522 wpa_hexdump(MSG_DEBUG, "FILS: assoc_req after FILS elements",
1523 wpa_s->sme.assoc_req_ie,
1524 wpa_s->sme.assoc_req_ie_len);
Dmitry Shmidt9839ecd2016-11-07 11:05:47 -08001525
1526 os_memcpy(nonces, snonce, FILS_NONCE_LEN);
1527 os_memcpy(nonces + FILS_NONCE_LEN, anonce, FILS_NONCE_LEN);
1528 params.fils_nonces = nonces;
1529 params.fils_nonces_len = sizeof(nonces);
1530 }
1531#endif /* CONFIG_FILS */
1532
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001533#ifdef CONFIG_OWE
1534#ifdef CONFIG_TESTING_OPTIONS
1535 if (get_ie_ext(wpa_s->sme.assoc_req_ie, wpa_s->sme.assoc_req_ie_len,
1536 WLAN_EID_EXT_OWE_DH_PARAM)) {
1537 wpa_printf(MSG_INFO, "TESTING: Override OWE DH element");
1538 } else
1539#endif /* CONFIG_TESTING_OPTIONS */
1540 if (auth_type == WLAN_AUTH_OPEN &&
1541 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE) {
1542 struct wpabuf *owe_ie;
Roshan Pius3a1667e2018-07-03 15:17:14 -07001543 u16 group;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001544
Roshan Pius3a1667e2018-07-03 15:17:14 -07001545 if (wpa_s->current_ssid && wpa_s->current_ssid->owe_group) {
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001546 group = wpa_s->current_ssid->owe_group;
Hai Shalom74f70d42019-02-11 14:42:39 -08001547 } else if (wpa_s->assoc_status_code ==
1548 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED) {
Roshan Pius3a1667e2018-07-03 15:17:14 -07001549 if (wpa_s->last_owe_group == 19)
1550 group = 20;
1551 else if (wpa_s->last_owe_group == 20)
1552 group = 21;
1553 else
1554 group = OWE_DH_GROUP;
Hai Shalom74f70d42019-02-11 14:42:39 -08001555 } else {
1556 group = OWE_DH_GROUP;
Roshan Pius3a1667e2018-07-03 15:17:14 -07001557 }
Hai Shalom74f70d42019-02-11 14:42:39 -08001558
Roshan Pius3a1667e2018-07-03 15:17:14 -07001559 wpa_s->last_owe_group = group;
1560 wpa_printf(MSG_DEBUG, "OWE: Try to use group %u", group);
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001561 owe_ie = owe_build_assoc_req(wpa_s->wpa, group);
1562 if (!owe_ie) {
1563 wpa_printf(MSG_ERROR,
1564 "OWE: Failed to build IE for Association Request frame");
1565 return;
1566 }
1567 if (wpa_s->sme.assoc_req_ie_len + wpabuf_len(owe_ie) >
1568 sizeof(wpa_s->sme.assoc_req_ie)) {
1569 wpa_printf(MSG_ERROR,
1570 "OWE: Not enough buffer room for own Association Request frame elements");
1571 wpabuf_free(owe_ie);
1572 return;
1573 }
1574 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1575 wpabuf_head(owe_ie), wpabuf_len(owe_ie));
1576 wpa_s->sme.assoc_req_ie_len += wpabuf_len(owe_ie);
1577 wpabuf_free(owe_ie);
1578 }
1579#endif /* CONFIG_OWE */
1580
Hai Shalom021b0b52019-04-10 11:17:58 -07001581#ifdef CONFIG_DPP2
1582 if (wpa_s->key_mgmt == WPA_KEY_MGMT_DPP && wpa_s->current_ssid &&
1583 wpa_s->current_ssid->dpp_netaccesskey) {
1584 struct wpa_ssid *ssid = wpa_s->current_ssid;
1585
1586 dpp_pfs_free(wpa_s->dpp_pfs);
1587 wpa_s->dpp_pfs = dpp_pfs_init(ssid->dpp_netaccesskey,
1588 ssid->dpp_netaccesskey_len);
1589 if (!wpa_s->dpp_pfs) {
1590 wpa_printf(MSG_DEBUG, "DPP: Could not initialize PFS");
1591 /* Try to continue without PFS */
1592 goto pfs_fail;
1593 }
1594 if (wpa_s->sme.assoc_req_ie_len +
1595 wpabuf_len(wpa_s->dpp_pfs->ie) >
1596 sizeof(wpa_s->sme.assoc_req_ie)) {
1597 wpa_printf(MSG_ERROR,
1598 "DPP: Not enough buffer room for own Association Request frame elements");
1599 dpp_pfs_free(wpa_s->dpp_pfs);
1600 wpa_s->dpp_pfs = NULL;
1601 goto pfs_fail;
1602 }
1603 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1604 wpabuf_head(wpa_s->dpp_pfs->ie),
1605 wpabuf_len(wpa_s->dpp_pfs->ie));
1606 wpa_s->sme.assoc_req_ie_len += wpabuf_len(wpa_s->dpp_pfs->ie);
1607 }
1608pfs_fail:
1609#endif /* CONFIG_DPP2 */
1610
Hai Shalom74f70d42019-02-11 14:42:39 -08001611 if (wpa_s->current_ssid && wpa_s->current_ssid->multi_ap_backhaul_sta) {
1612 size_t multi_ap_ie_len;
1613
1614 multi_ap_ie_len = add_multi_ap_ie(
1615 wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1616 sizeof(wpa_s->sme.assoc_req_ie) -
1617 wpa_s->sme.assoc_req_ie_len,
1618 MULTI_AP_BACKHAUL_STA);
1619 if (multi_ap_ie_len == 0) {
1620 wpa_printf(MSG_ERROR,
1621 "Multi-AP: Failed to build Multi-AP IE");
1622 return;
1623 }
1624 wpa_s->sme.assoc_req_ie_len += multi_ap_ie_len;
1625 }
1626
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001627 params.bssid = bssid;
1628 params.ssid = wpa_s->sme.ssid;
1629 params.ssid_len = wpa_s->sme.ssid_len;
Dmitry Shmidt9ead16e2014-10-07 13:15:23 -07001630 params.freq.freq = wpa_s->sme.freq;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001631 params.bg_scan_period = wpa_s->current_ssid ?
1632 wpa_s->current_ssid->bg_scan_period : -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001633 params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
1634 wpa_s->sme.assoc_req_ie : NULL;
1635 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
Hai Shalom74f70d42019-02-11 14:42:39 -08001636 wpa_hexdump(MSG_DEBUG, "SME: Association Request IEs",
1637 params.wpa_ie, params.wpa_ie_len);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001638 params.pairwise_suite = wpa_s->pairwise_cipher;
1639 params.group_suite = wpa_s->group_cipher;
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001640 params.mgmt_group_suite = wpa_s->mgmt_group_cipher;
Dmitry Shmidt15907092014-03-25 10:42:57 -07001641 params.key_mgmt_suite = wpa_s->key_mgmt;
1642 params.wpa_proto = wpa_s->wpa_proto;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001643#ifdef CONFIG_HT_OVERRIDES
1644 os_memset(&htcaps, 0, sizeof(htcaps));
1645 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
1646 params.htcaps = (u8 *) &htcaps;
1647 params.htcaps_mask = (u8 *) &htcaps_mask;
1648 wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, &params);
1649#endif /* CONFIG_HT_OVERRIDES */
Dmitry Shmidt2f023192013-03-12 12:44:17 -07001650#ifdef CONFIG_VHT_OVERRIDES
1651 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
1652 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
1653 params.vhtcaps = &vhtcaps;
1654 params.vhtcaps_mask = &vhtcaps_mask;
1655 wpa_supplicant_apply_vht_overrides(wpa_s, wpa_s->current_ssid, &params);
1656#endif /* CONFIG_VHT_OVERRIDES */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001657#ifdef CONFIG_IEEE80211R
Hai Shalom74f70d42019-02-11 14:42:39 -08001658 if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies &&
1659 get_ie(wpa_s->sme.ft_ies, wpa_s->sme.ft_ies_len,
1660 WLAN_EID_RIC_DATA)) {
1661 /* There seems to be a pretty inconvenient bug in the Linux
1662 * kernel IE splitting functionality when RIC is used. For now,
1663 * skip correct behavior in IE construction here (i.e., drop the
1664 * additional non-FT-specific IEs) to avoid kernel issues. This
1665 * is fine since RIC is used only for testing purposes in the
1666 * current implementation. */
1667 wpa_printf(MSG_INFO,
1668 "SME: Linux kernel workaround - do not try to include additional IEs with RIC");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001669 params.wpa_ie = wpa_s->sme.ft_ies;
1670 params.wpa_ie_len = wpa_s->sme.ft_ies_len;
Hai Shalom74f70d42019-02-11 14:42:39 -08001671 } else if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
1672 const u8 *rm_en, *pos, *end;
1673 size_t rm_en_len = 0;
1674 u8 *rm_en_dup = NULL, *wpos;
1675
1676 /* Remove RSNE, MDE, FTE to allow them to be overridden with
1677 * FT specific values */
1678 remove_ie(wpa_s->sme.assoc_req_ie,
1679 &wpa_s->sme.assoc_req_ie_len,
1680 WLAN_EID_RSN);
1681 remove_ie(wpa_s->sme.assoc_req_ie,
1682 &wpa_s->sme.assoc_req_ie_len,
1683 WLAN_EID_MOBILITY_DOMAIN);
1684 remove_ie(wpa_s->sme.assoc_req_ie,
1685 &wpa_s->sme.assoc_req_ie_len,
1686 WLAN_EID_FAST_BSS_TRANSITION);
1687 rm_en = get_ie(wpa_s->sme.assoc_req_ie,
1688 wpa_s->sme.assoc_req_ie_len,
1689 WLAN_EID_RRM_ENABLED_CAPABILITIES);
1690 if (rm_en) {
1691 /* Need to remove RM Enabled Capabilities element as
1692 * well temporarily, so that it can be placed between
1693 * RSNE and MDE. */
1694 rm_en_len = 2 + rm_en[1];
1695 rm_en_dup = os_memdup(rm_en, rm_en_len);
1696 remove_ie(wpa_s->sme.assoc_req_ie,
1697 &wpa_s->sme.assoc_req_ie_len,
1698 WLAN_EID_RRM_ENABLED_CAPABILITIES);
1699 }
1700 wpa_hexdump(MSG_DEBUG,
1701 "SME: Association Request IEs after FT IE removal",
1702 wpa_s->sme.assoc_req_ie,
1703 wpa_s->sme.assoc_req_ie_len);
1704 if (wpa_s->sme.assoc_req_ie_len + wpa_s->sme.ft_ies_len +
1705 rm_en_len > sizeof(wpa_s->sme.assoc_req_ie)) {
1706 wpa_printf(MSG_ERROR,
1707 "SME: Not enough buffer room for FT IEs in Association Request frame");
1708 os_free(rm_en_dup);
1709 return;
1710 }
1711
1712 os_memmove(wpa_s->sme.assoc_req_ie + wpa_s->sme.ft_ies_len +
1713 rm_en_len,
1714 wpa_s->sme.assoc_req_ie,
1715 wpa_s->sme.assoc_req_ie_len);
1716 pos = wpa_s->sme.ft_ies;
1717 end = pos + wpa_s->sme.ft_ies_len;
1718 wpos = wpa_s->sme.assoc_req_ie;
1719 if (*pos == WLAN_EID_RSN) {
1720 os_memcpy(wpos, pos, 2 + pos[1]);
1721 wpos += 2 + pos[1];
1722 pos += 2 + pos[1];
1723 }
1724 if (rm_en_dup) {
1725 os_memcpy(wpos, rm_en_dup, rm_en_len);
1726 wpos += rm_en_len;
1727 os_free(rm_en_dup);
1728 }
1729 os_memcpy(wpos, pos, end - pos);
1730 wpa_s->sme.assoc_req_ie_len += wpa_s->sme.ft_ies_len +
1731 rm_en_len;
1732 params.wpa_ie = wpa_s->sme.assoc_req_ie;
1733 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
1734 wpa_hexdump(MSG_DEBUG,
1735 "SME: Association Request IEs after FT override",
1736 params.wpa_ie, params.wpa_ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001737 }
1738#endif /* CONFIG_IEEE80211R */
1739 params.mode = mode;
1740 params.mgmt_frame_protection = wpa_s->sme.mfp;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001741 params.rrm_used = wpa_s->rrm.rrm_used;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001742 if (wpa_s->sme.prev_bssid_set)
1743 params.prev_bssid = wpa_s->sme.prev_bssid;
1744
1745 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
1746 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
1747 params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
Dmitry Shmidt9ead16e2014-10-07 13:15:23 -07001748 params.freq.freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001749
1750 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
1751
1752 if (params.wpa_ie == NULL ||
1753 ieee802_11_parse_elems(params.wpa_ie, params.wpa_ie_len, &elems, 0)
1754 < 0) {
1755 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Could not parse own IEs?!");
1756 os_memset(&elems, 0, sizeof(elems));
1757 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001758 if (elems.rsn_ie) {
1759 params.wpa_proto = WPA_PROTO_RSN;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001760 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.rsn_ie - 2,
1761 elems.rsn_ie_len + 2);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001762 } else if (elems.wpa_ie) {
1763 params.wpa_proto = WPA_PROTO_WPA;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001764 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
1765 elems.wpa_ie_len + 2);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001766 } else if (elems.osen) {
1767 params.wpa_proto = WPA_PROTO_OSEN;
1768 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.osen - 2,
1769 elems.osen_len + 2);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001770 } else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001771 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001772 if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001773 params.p2p = 1;
1774
Dmitry Shmidt9c175262016-03-03 10:20:07 -08001775 if (wpa_s->p2pdev->set_sta_uapsd)
1776 params.uapsd = wpa_s->p2pdev->sta_uapsd;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001777 else
1778 params.uapsd = -1;
1779
1780 if (wpa_drv_associate(wpa_s, &params) < 0) {
1781 wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
1782 "driver failed");
1783 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001784 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001785 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1786 return;
1787 }
1788
1789 eloop_register_timeout(SME_ASSOC_TIMEOUT, 0, sme_assoc_timer, wpa_s,
1790 NULL);
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001791
1792#ifdef CONFIG_TESTING_OPTIONS
1793 wpabuf_free(wpa_s->last_assoc_req_wpa_ie);
1794 wpa_s->last_assoc_req_wpa_ie = NULL;
1795 if (params.wpa_ie)
1796 wpa_s->last_assoc_req_wpa_ie =
1797 wpabuf_alloc_copy(params.wpa_ie, params.wpa_ie_len);
1798#endif /* CONFIG_TESTING_OPTIONS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001799}
1800
1801
1802int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
1803 const u8 *ies, size_t ies_len)
1804{
1805 if (md == NULL || ies == NULL) {
1806 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Remove mobility domain");
1807 os_free(wpa_s->sme.ft_ies);
1808 wpa_s->sme.ft_ies = NULL;
1809 wpa_s->sme.ft_ies_len = 0;
1810 wpa_s->sme.ft_used = 0;
1811 return 0;
1812 }
1813
1814 os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
1815 wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
1816 os_free(wpa_s->sme.ft_ies);
Dmitry Shmidtd2986c22017-10-23 14:22:09 -07001817 wpa_s->sme.ft_ies = os_memdup(ies, ies_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001818 if (wpa_s->sme.ft_ies == NULL)
1819 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001820 wpa_s->sme.ft_ies_len = ies_len;
1821 return 0;
1822}
1823
1824
1825static void sme_deauth(struct wpa_supplicant *wpa_s)
1826{
1827 int bssid_changed;
1828
1829 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
1830
1831 if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
1832 WLAN_REASON_DEAUTH_LEAVING) < 0) {
1833 wpa_msg(wpa_s, MSG_INFO, "SME: Deauth request to the driver "
1834 "failed");
1835 }
1836 wpa_s->sme.prev_bssid_set = 0;
1837
1838 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1839 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1840 os_memset(wpa_s->bssid, 0, ETH_ALEN);
1841 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1842 if (bssid_changed)
1843 wpas_notify_bssid_changed(wpa_s);
1844}
1845
1846
1847void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
1848 union wpa_event_data *data)
1849{
1850 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association with " MACSTR " failed: "
1851 "status code %d", MAC2STR(wpa_s->pending_bssid),
1852 data->assoc_reject.status_code);
1853
1854 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1855
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001856#ifdef CONFIG_SAE
1857 if (wpa_s->sme.sae_pmksa_caching && wpa_s->current_ssid &&
1858 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt)) {
1859 wpa_dbg(wpa_s, MSG_DEBUG,
1860 "PMKSA caching attempt rejected - drop PMKSA cache entry and fall back to SAE authentication");
1861 wpa_sm_aborted_cached(wpa_s->wpa);
1862 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
1863 if (wpa_s->current_bss) {
1864 struct wpa_bss *bss = wpa_s->current_bss;
1865 struct wpa_ssid *ssid = wpa_s->current_ssid;
1866
1867 wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
1868 WLAN_REASON_DEAUTH_LEAVING);
1869 wpas_connect_work_done(wpa_s);
1870 wpa_supplicant_mark_disassoc(wpa_s);
1871 wpa_supplicant_connect(wpa_s, bss, ssid);
1872 return;
1873 }
1874 }
1875#endif /* CONFIG_SAE */
1876
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001877 /*
1878 * For now, unconditionally terminate the previous authentication. In
1879 * theory, this should not be needed, but mac80211 gets quite confused
1880 * if the authentication is left pending.. Some roaming cases might
1881 * benefit from using the previous authentication, so this could be
1882 * optimized in the future.
1883 */
1884 sme_deauth(wpa_s);
1885}
1886
1887
1888void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
1889 union wpa_event_data *data)
1890{
1891 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication timed out");
1892 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001893 wpa_supplicant_mark_disassoc(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001894}
1895
1896
1897void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
1898 union wpa_event_data *data)
1899{
1900 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association timed out");
1901 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1902 wpa_supplicant_mark_disassoc(wpa_s);
1903}
1904
1905
1906void sme_event_disassoc(struct wpa_supplicant *wpa_s,
Dmitry Shmidtc2ebb4b2013-07-24 12:57:51 -07001907 struct disassoc_info *info)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001908{
1909 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001910 if (wpa_s->sme.prev_bssid_set) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001911 /*
1912 * cfg80211/mac80211 can get into somewhat confused state if
1913 * the AP only disassociates us and leaves us in authenticated
1914 * state. For now, force the state to be cleared to avoid
1915 * confusing errors if we try to associate with the AP again.
1916 */
1917 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Deauthenticate to clear "
1918 "driver state");
1919 wpa_drv_deauthenticate(wpa_s, wpa_s->sme.prev_bssid,
1920 WLAN_REASON_DEAUTH_LEAVING);
1921 }
1922}
1923
1924
1925static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx)
1926{
1927 struct wpa_supplicant *wpa_s = eloop_ctx;
1928 if (wpa_s->wpa_state == WPA_AUTHENTICATING) {
1929 wpa_msg(wpa_s, MSG_DEBUG, "SME: Authentication timeout");
1930 sme_deauth(wpa_s);
1931 }
1932}
1933
1934
1935static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx)
1936{
1937 struct wpa_supplicant *wpa_s = eloop_ctx;
1938 if (wpa_s->wpa_state == WPA_ASSOCIATING) {
1939 wpa_msg(wpa_s, MSG_DEBUG, "SME: Association timeout");
1940 sme_deauth(wpa_s);
1941 }
1942}
1943
1944
1945void sme_state_changed(struct wpa_supplicant *wpa_s)
1946{
1947 /* Make sure timers are cleaned up appropriately. */
1948 if (wpa_s->wpa_state != WPA_ASSOCIATING)
1949 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1950 if (wpa_s->wpa_state != WPA_AUTHENTICATING)
1951 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1952}
1953
1954
1955void sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
1956 const u8 *prev_pending_bssid)
1957{
1958 /*
1959 * mac80211-workaround to force deauth on failed auth cmd,
1960 * requires us to remain in authenticating state to allow the
1961 * second authentication attempt to be continued properly.
1962 */
1963 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Allow pending authentication "
1964 "to proceed after disconnection event");
1965 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
1966 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
1967
1968 /*
1969 * Re-arm authentication timer in case auth fails for whatever reason.
1970 */
1971 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1972 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
1973 NULL);
1974}
1975
1976
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001977void sme_clear_on_disassoc(struct wpa_supplicant *wpa_s)
1978{
1979 wpa_s->sme.prev_bssid_set = 0;
1980#ifdef CONFIG_SAE
1981 wpabuf_free(wpa_s->sme.sae_token);
1982 wpa_s->sme.sae_token = NULL;
1983 sae_clear_data(&wpa_s->sme.sae);
1984#endif /* CONFIG_SAE */
1985#ifdef CONFIG_IEEE80211R
Roshan Pius3a1667e2018-07-03 15:17:14 -07001986 if (wpa_s->sme.ft_ies || wpa_s->sme.ft_used)
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001987 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
1988#endif /* CONFIG_IEEE80211R */
1989}
1990
1991
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001992void sme_deinit(struct wpa_supplicant *wpa_s)
1993{
1994 os_free(wpa_s->sme.ft_ies);
1995 wpa_s->sme.ft_ies = NULL;
1996 wpa_s->sme.ft_ies_len = 0;
1997#ifdef CONFIG_IEEE80211W
1998 sme_stop_sa_query(wpa_s);
1999#endif /* CONFIG_IEEE80211W */
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002000 sme_clear_on_disassoc(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002001
2002 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
2003 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002004 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
2005}
2006
2007
2008static void sme_send_2040_bss_coex(struct wpa_supplicant *wpa_s,
2009 const u8 *chan_list, u8 num_channels,
2010 u8 num_intol)
2011{
2012 struct ieee80211_2040_bss_coex_ie *bc_ie;
2013 struct ieee80211_2040_intol_chan_report *ic_report;
2014 struct wpabuf *buf;
2015
Dmitry Shmidtd11f0192014-03-24 12:09:47 -07002016 wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR
2017 " (num_channels=%u num_intol=%u)",
2018 MAC2STR(wpa_s->bssid), num_channels, num_intol);
2019 wpa_hexdump(MSG_DEBUG, "SME: 20/40 BSS Intolerant Channels",
2020 chan_list, num_channels);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002021
2022 buf = wpabuf_alloc(2 + /* action.category + action_code */
2023 sizeof(struct ieee80211_2040_bss_coex_ie) +
2024 sizeof(struct ieee80211_2040_intol_chan_report) +
2025 num_channels);
2026 if (buf == NULL)
2027 return;
2028
2029 wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
2030 wpabuf_put_u8(buf, WLAN_PA_20_40_BSS_COEX);
2031
2032 bc_ie = wpabuf_put(buf, sizeof(*bc_ie));
2033 bc_ie->element_id = WLAN_EID_20_40_BSS_COEXISTENCE;
2034 bc_ie->length = 1;
2035 if (num_intol)
2036 bc_ie->coex_param |= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ;
2037
2038 if (num_channels > 0) {
2039 ic_report = wpabuf_put(buf, sizeof(*ic_report));
2040 ic_report->element_id = WLAN_EID_20_40_BSS_INTOLERANT;
2041 ic_report->length = num_channels + 1;
2042 ic_report->op_class = 0;
2043 os_memcpy(wpabuf_put(buf, num_channels), chan_list,
2044 num_channels);
2045 }
2046
2047 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
2048 wpa_s->own_addr, wpa_s->bssid,
2049 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
2050 wpa_msg(wpa_s, MSG_INFO,
2051 "SME: Failed to send 20/40 BSS Coexistence frame");
2052 }
2053
2054 wpabuf_free(buf);
2055}
2056
2057
Dmitry Shmidt04949592012-07-19 12:16:46 -07002058int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
2059{
2060 struct wpa_bss *bss;
2061 const u8 *ie;
2062 u16 ht_cap;
2063 u8 chan_list[P2P_MAX_CHANNELS], channel;
2064 u8 num_channels = 0, num_intol = 0, i;
2065
2066 if (!wpa_s->sme.sched_obss_scan)
2067 return 0;
2068
2069 wpa_s->sme.sched_obss_scan = 0;
2070 if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
2071 return 1;
2072
2073 /*
2074 * Check whether AP uses regulatory triplet or channel triplet in
2075 * country info. Right now the operating class of the BSS channel
2076 * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
2077 * based on the assumption that operating class triplet is not used in
2078 * beacon frame. If the First Channel Number/Operating Extension
2079 * Identifier octet has a positive integer value of 201 or greater,
2080 * then its operating class triplet.
2081 *
2082 * TODO: If Supported Operating Classes element is present in beacon
2083 * frame, have to lookup operating class in Annex E and fill them in
2084 * 2040 coex frame.
2085 */
2086 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
2087 if (ie && (ie[1] >= 6) && (ie[5] >= 201))
2088 return 1;
2089
2090 os_memset(chan_list, 0, sizeof(chan_list));
2091
2092 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2093 /* Skip other band bss */
Dmitry Shmidt4b060592013-04-29 16:42:49 -07002094 enum hostapd_hw_mode mode;
2095 mode = ieee80211_freq_to_chan(bss->freq, &channel);
2096 if (mode != HOSTAPD_MODE_IEEE80211G &&
2097 mode != HOSTAPD_MODE_IEEE80211B)
Dmitry Shmidt04949592012-07-19 12:16:46 -07002098 continue;
2099
2100 ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
2101 ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
Dmitry Shmidtd11f0192014-03-24 12:09:47 -07002102 wpa_printf(MSG_DEBUG, "SME OBSS scan BSS " MACSTR
2103 " freq=%u chan=%u ht_cap=0x%x",
2104 MAC2STR(bss->bssid), bss->freq, channel, ht_cap);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002105
2106 if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
Dmitry Shmidtd11f0192014-03-24 12:09:47 -07002107 if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
2108 num_intol++;
2109
Dmitry Shmidt04949592012-07-19 12:16:46 -07002110 /* Check whether the channel is already considered */
2111 for (i = 0; i < num_channels; i++) {
2112 if (channel == chan_list[i])
2113 break;
2114 }
2115 if (i != num_channels)
2116 continue;
2117
Dmitry Shmidt04949592012-07-19 12:16:46 -07002118 chan_list[num_channels++] = channel;
2119 }
2120 }
2121
2122 sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
2123 return 1;
2124}
2125
2126
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002127static void wpa_obss_scan_freqs_list(struct wpa_supplicant *wpa_s,
2128 struct wpa_driver_scan_params *params)
Dmitry Shmidt04949592012-07-19 12:16:46 -07002129{
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002130 /* Include only affected channels */
Dmitry Shmidt04949592012-07-19 12:16:46 -07002131 struct hostapd_hw_modes *mode;
2132 int count, i;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002133 int start, end;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002134
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002135 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
2136 HOSTAPD_MODE_IEEE80211G);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002137 if (mode == NULL) {
2138 /* No channels supported in this band - use empty list */
2139 params->freqs = os_zalloc(sizeof(int));
2140 return;
2141 }
2142
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002143 if (wpa_s->sme.ht_sec_chan == HT_SEC_CHAN_UNKNOWN &&
2144 wpa_s->current_bss) {
2145 const u8 *ie;
2146
2147 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_OPERATION);
2148 if (ie && ie[1] >= 2) {
2149 u8 o;
2150
2151 o = ie[3] & HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK;
2152 if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
2153 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
2154 else if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
2155 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
2156 }
2157 }
2158
2159 start = wpa_s->assoc_freq - 10;
2160 end = wpa_s->assoc_freq + 10;
2161 switch (wpa_s->sme.ht_sec_chan) {
2162 case HT_SEC_CHAN_UNKNOWN:
2163 /* HT40+ possible on channels 1..9 */
2164 if (wpa_s->assoc_freq <= 2452)
2165 start -= 20;
2166 /* HT40- possible on channels 5-13 */
2167 if (wpa_s->assoc_freq >= 2432)
2168 end += 20;
2169 break;
2170 case HT_SEC_CHAN_ABOVE:
2171 end += 20;
2172 break;
2173 case HT_SEC_CHAN_BELOW:
2174 start -= 20;
2175 break;
2176 }
2177 wpa_printf(MSG_DEBUG,
2178 "OBSS: assoc_freq %d possible affected range %d-%d",
2179 wpa_s->assoc_freq, start, end);
2180
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002181 params->freqs = os_calloc(mode->num_channels + 1, sizeof(int));
Dmitry Shmidt04949592012-07-19 12:16:46 -07002182 if (params->freqs == NULL)
2183 return;
2184 for (count = 0, i = 0; i < mode->num_channels; i++) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002185 int freq;
2186
Dmitry Shmidt04949592012-07-19 12:16:46 -07002187 if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
2188 continue;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002189 freq = mode->channels[i].freq;
2190 if (freq - 10 >= end || freq + 10 <= start)
2191 continue; /* not affected */
2192 params->freqs[count++] = freq;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002193 }
2194}
2195
2196
2197static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2198{
2199 struct wpa_supplicant *wpa_s = eloop_ctx;
2200 struct wpa_driver_scan_params params;
2201
2202 if (!wpa_s->current_bss) {
2203 wpa_printf(MSG_DEBUG, "SME OBSS: Ignore scan request");
2204 return;
2205 }
2206
2207 os_memset(&params, 0, sizeof(params));
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002208 wpa_obss_scan_freqs_list(wpa_s, &params);
Dmitry Shmidt2271d3f2014-06-23 12:16:31 -07002209 params.low_priority = 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002210 wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
2211
2212 if (wpa_supplicant_trigger_scan(wpa_s, &params))
2213 wpa_printf(MSG_DEBUG, "SME OBSS: Failed to trigger scan");
2214 else
2215 wpa_s->sme.sched_obss_scan = 1;
2216 os_free(params.freqs);
2217
2218 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
2219 sme_obss_scan_timeout, wpa_s, NULL);
2220}
2221
2222
2223void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable)
2224{
2225 const u8 *ie;
2226 struct wpa_bss *bss = wpa_s->current_bss;
2227 struct wpa_ssid *ssid = wpa_s->current_ssid;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002228 struct hostapd_hw_modes *hw_mode = NULL;
2229 int i;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002230
2231 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
2232 wpa_s->sme.sched_obss_scan = 0;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002233 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002234 if (!enable)
2235 return;
2236
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08002237 /*
2238 * Schedule OBSS scan if driver is using station SME in wpa_supplicant
2239 * or it expects OBSS scan to be performed by wpa_supplicant.
2240 */
2241 if (!((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
2242 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OBSS_SCAN)) ||
2243 ssid == NULL || ssid->mode != IEEE80211_MODE_INFRA)
2244 return;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002245
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002246 if (!wpa_s->hw.modes)
2247 return;
2248
2249 /* only HT caps in 11g mode are relevant */
2250 for (i = 0; i < wpa_s->hw.num_modes; i++) {
2251 hw_mode = &wpa_s->hw.modes[i];
2252 if (hw_mode->mode == HOSTAPD_MODE_IEEE80211G)
2253 break;
2254 }
2255
2256 /* Driver does not support HT40 for 11g or doesn't have 11g. */
2257 if (i == wpa_s->hw.num_modes || !hw_mode ||
2258 !(hw_mode->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
2259 return;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002260
2261 if (bss == NULL || bss->freq < 2400 || bss->freq > 2500)
2262 return; /* Not associated on 2.4 GHz band */
2263
2264 /* Check whether AP supports HT40 */
2265 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_CAP);
2266 if (!ie || ie[1] < 2 ||
2267 !(WPA_GET_LE16(ie + 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
2268 return; /* AP does not support HT40 */
2269
2270 ie = wpa_bss_get_ie(wpa_s->current_bss,
2271 WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS);
2272 if (!ie || ie[1] < 14)
2273 return; /* AP does not request OBSS scans */
2274
2275 wpa_s->sme.obss_scan_int = WPA_GET_LE16(ie + 6);
2276 if (wpa_s->sme.obss_scan_int < 10) {
2277 wpa_printf(MSG_DEBUG, "SME: Invalid OBSS Scan Interval %u "
2278 "replaced with the minimum 10 sec",
2279 wpa_s->sme.obss_scan_int);
2280 wpa_s->sme.obss_scan_int = 10;
2281 }
2282 wpa_printf(MSG_DEBUG, "SME: OBSS Scan Interval %u sec",
2283 wpa_s->sme.obss_scan_int);
2284 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
2285 sme_obss_scan_timeout, wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002286}
2287
2288
2289#ifdef CONFIG_IEEE80211W
2290
2291static const unsigned int sa_query_max_timeout = 1000;
2292static const unsigned int sa_query_retry_timeout = 201;
Hai Shalom74f70d42019-02-11 14:42:39 -08002293static const unsigned int sa_query_ch_switch_max_delay = 5000; /* in usec */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002294
2295static int sme_check_sa_query_timeout(struct wpa_supplicant *wpa_s)
2296{
2297 u32 tu;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002298 struct os_reltime now, passed;
2299 os_get_reltime(&now);
2300 os_reltime_sub(&now, &wpa_s->sme.sa_query_start, &passed);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002301 tu = (passed.sec * 1000000 + passed.usec) / 1024;
2302 if (sa_query_max_timeout < tu) {
2303 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SA Query timed out");
2304 sme_stop_sa_query(wpa_s);
2305 wpa_supplicant_deauthenticate(
2306 wpa_s, WLAN_REASON_PREV_AUTH_NOT_VALID);
2307 return 1;
2308 }
2309
2310 return 0;
2311}
2312
2313
2314static void sme_send_sa_query_req(struct wpa_supplicant *wpa_s,
2315 const u8 *trans_id)
2316{
Hai Shalom74f70d42019-02-11 14:42:39 -08002317 u8 req[2 + WLAN_SA_QUERY_TR_ID_LEN + OCV_OCI_EXTENDED_LEN];
2318 u8 req_len = 2 + WLAN_SA_QUERY_TR_ID_LEN;
2319
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002320 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Request to "
2321 MACSTR, MAC2STR(wpa_s->bssid));
2322 wpa_hexdump(MSG_DEBUG, "SME: SA Query Transaction ID",
2323 trans_id, WLAN_SA_QUERY_TR_ID_LEN);
2324 req[0] = WLAN_ACTION_SA_QUERY;
2325 req[1] = WLAN_SA_QUERY_REQUEST;
2326 os_memcpy(req + 2, trans_id, WLAN_SA_QUERY_TR_ID_LEN);
Hai Shalom74f70d42019-02-11 14:42:39 -08002327
2328#ifdef CONFIG_OCV
2329 if (wpa_sm_ocv_enabled(wpa_s->wpa)) {
2330 struct wpa_channel_info ci;
2331
2332 if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
2333 wpa_printf(MSG_WARNING,
2334 "Failed to get channel info for OCI element in SA Query Request frame");
2335 return;
2336 }
2337
2338 if (ocv_insert_extended_oci(&ci, req + req_len) < 0)
2339 return;
2340
2341 req_len += OCV_OCI_EXTENDED_LEN;
2342 }
2343#endif /* CONFIG_OCV */
2344
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002345 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
2346 wpa_s->own_addr, wpa_s->bssid,
Hai Shalom74f70d42019-02-11 14:42:39 -08002347 req, req_len, 0) < 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002348 wpa_msg(wpa_s, MSG_INFO, "SME: Failed to send SA Query "
2349 "Request");
2350}
2351
2352
2353static void sme_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
2354{
2355 struct wpa_supplicant *wpa_s = eloop_ctx;
2356 unsigned int timeout, sec, usec;
2357 u8 *trans_id, *nbuf;
2358
2359 if (wpa_s->sme.sa_query_count > 0 &&
2360 sme_check_sa_query_timeout(wpa_s))
2361 return;
2362
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002363 nbuf = os_realloc_array(wpa_s->sme.sa_query_trans_id,
2364 wpa_s->sme.sa_query_count + 1,
2365 WLAN_SA_QUERY_TR_ID_LEN);
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -07002366 if (nbuf == NULL) {
2367 sme_stop_sa_query(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002368 return;
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -07002369 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002370 if (wpa_s->sme.sa_query_count == 0) {
2371 /* Starting a new SA Query procedure */
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002372 os_get_reltime(&wpa_s->sme.sa_query_start);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002373 }
2374 trans_id = nbuf + wpa_s->sme.sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
2375 wpa_s->sme.sa_query_trans_id = nbuf;
2376 wpa_s->sme.sa_query_count++;
2377
Dmitry Shmidt661b4f72014-09-29 14:58:27 -07002378 if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
2379 wpa_printf(MSG_DEBUG, "Could not generate SA Query ID");
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -07002380 sme_stop_sa_query(wpa_s);
Dmitry Shmidt661b4f72014-09-29 14:58:27 -07002381 return;
2382 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002383
2384 timeout = sa_query_retry_timeout;
2385 sec = ((timeout / 1000) * 1024) / 1000;
2386 usec = (timeout % 1000) * 1024;
2387 eloop_register_timeout(sec, usec, sme_sa_query_timer, wpa_s, NULL);
2388
2389 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association SA Query attempt %d",
2390 wpa_s->sme.sa_query_count);
2391
2392 sme_send_sa_query_req(wpa_s, trans_id);
2393}
2394
2395
2396static void sme_start_sa_query(struct wpa_supplicant *wpa_s)
2397{
2398 sme_sa_query_timer(wpa_s, NULL);
2399}
2400
2401
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002402static void sme_stop_sa_query(struct wpa_supplicant *wpa_s)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002403{
2404 eloop_cancel_timeout(sme_sa_query_timer, wpa_s, NULL);
2405 os_free(wpa_s->sme.sa_query_trans_id);
2406 wpa_s->sme.sa_query_trans_id = NULL;
2407 wpa_s->sme.sa_query_count = 0;
2408}
2409
2410
2411void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
2412 const u8 *da, u16 reason_code)
2413{
2414 struct wpa_ssid *ssid;
Dmitry Shmidt0c08fdc2014-06-20 10:16:40 -07002415 struct os_reltime now;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002416
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002417 if (wpa_s->wpa_state != WPA_COMPLETED)
2418 return;
2419 ssid = wpa_s->current_ssid;
Dmitry Shmidt807291d2015-01-27 13:40:23 -08002420 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002421 return;
2422 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
2423 return;
2424 if (reason_code != WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA &&
2425 reason_code != WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA)
2426 return;
2427 if (wpa_s->sme.sa_query_count > 0)
2428 return;
2429
Dmitry Shmidt0c08fdc2014-06-20 10:16:40 -07002430 os_get_reltime(&now);
2431 if (wpa_s->sme.last_unprot_disconnect.sec &&
2432 !os_reltime_expired(&now, &wpa_s->sme.last_unprot_disconnect, 10))
2433 return; /* limit SA Query procedure frequency */
2434 wpa_s->sme.last_unprot_disconnect = now;
2435
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002436 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Unprotected disconnect dropped - "
2437 "possible AP/STA state mismatch - trigger SA Query");
2438 sme_start_sa_query(wpa_s);
2439}
2440
2441
Hai Shalom74f70d42019-02-11 14:42:39 -08002442void sme_event_ch_switch(struct wpa_supplicant *wpa_s)
2443{
2444 unsigned int usec;
2445 u32 _rand;
2446
2447 if (wpa_s->wpa_state != WPA_COMPLETED ||
2448 !wpa_sm_ocv_enabled(wpa_s->wpa))
2449 return;
2450
2451 wpa_dbg(wpa_s, MSG_DEBUG,
2452 "SME: Channel switch completed - trigger new SA Query to verify new operating channel");
2453 sme_stop_sa_query(wpa_s);
2454
2455 if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0)
2456 _rand = os_random();
2457 usec = _rand % (sa_query_ch_switch_max_delay + 1);
2458 eloop_register_timeout(0, usec, sme_sa_query_timer, wpa_s, NULL);
2459}
2460
2461
2462static void sme_process_sa_query_request(struct wpa_supplicant *wpa_s,
2463 const u8 *sa, const u8 *data,
2464 size_t len)
2465{
2466 u8 resp[2 + WLAN_SA_QUERY_TR_ID_LEN + OCV_OCI_EXTENDED_LEN];
2467 u8 resp_len = 2 + WLAN_SA_QUERY_TR_ID_LEN;
2468
2469 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Response to "
2470 MACSTR, MAC2STR(wpa_s->bssid));
2471
2472 resp[0] = WLAN_ACTION_SA_QUERY;
2473 resp[1] = WLAN_SA_QUERY_RESPONSE;
2474 os_memcpy(resp + 2, data + 1, WLAN_SA_QUERY_TR_ID_LEN);
2475
2476#ifdef CONFIG_OCV
2477 if (wpa_sm_ocv_enabled(wpa_s->wpa)) {
2478 struct wpa_channel_info ci;
2479
2480 if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
2481 wpa_printf(MSG_WARNING,
2482 "Failed to get channel info for OCI element in SA Query Response frame");
2483 return;
2484 }
2485
2486 if (ocv_insert_extended_oci(&ci, resp + resp_len) < 0)
2487 return;
2488
2489 resp_len += OCV_OCI_EXTENDED_LEN;
2490 }
2491#endif /* CONFIG_OCV */
2492
2493 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
2494 wpa_s->own_addr, wpa_s->bssid,
2495 resp, resp_len, 0) < 0)
2496 wpa_msg(wpa_s, MSG_INFO,
2497 "SME: Failed to send SA Query Response");
2498}
2499
2500
2501static void sme_process_sa_query_response(struct wpa_supplicant *wpa_s,
2502 const u8 *sa, const u8 *data,
2503 size_t len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002504{
2505 int i;
2506
Hai Shalom74f70d42019-02-11 14:42:39 -08002507 if (!wpa_s->sme.sa_query_trans_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002508 return;
Hai Shalom74f70d42019-02-11 14:42:39 -08002509
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002510 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query response from "
2511 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
2512
2513 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
2514 return;
2515
2516 for (i = 0; i < wpa_s->sme.sa_query_count; i++) {
2517 if (os_memcmp(wpa_s->sme.sa_query_trans_id +
2518 i * WLAN_SA_QUERY_TR_ID_LEN,
2519 data + 1, WLAN_SA_QUERY_TR_ID_LEN) == 0)
2520 break;
2521 }
2522
2523 if (i >= wpa_s->sme.sa_query_count) {
2524 wpa_dbg(wpa_s, MSG_DEBUG, "SME: No matching SA Query "
2525 "transaction identifier found");
2526 return;
2527 }
2528
2529 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reply to pending SA Query received "
2530 "from " MACSTR, MAC2STR(sa));
2531 sme_stop_sa_query(wpa_s);
2532}
2533
Hai Shalom74f70d42019-02-11 14:42:39 -08002534
2535void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
2536 const u8 *data, size_t len)
2537{
2538 if (len < 1 + WLAN_SA_QUERY_TR_ID_LEN)
2539 return;
2540
2541 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query frame from "
2542 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
2543
2544#ifdef CONFIG_OCV
2545 if (wpa_sm_ocv_enabled(wpa_s->wpa)) {
2546 struct ieee802_11_elems elems;
2547 struct wpa_channel_info ci;
2548
2549 if (ieee802_11_parse_elems(data + 1 + WLAN_SA_QUERY_TR_ID_LEN,
2550 len - 1 - WLAN_SA_QUERY_TR_ID_LEN,
2551 &elems, 1) == ParseFailed) {
2552 wpa_printf(MSG_DEBUG,
2553 "SA Query: Failed to parse elements");
2554 return;
2555 }
2556
2557 if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
2558 wpa_printf(MSG_WARNING,
2559 "Failed to get channel info to validate received OCI in SA Query Action frame");
2560 return;
2561 }
2562
2563 if (ocv_verify_tx_params(elems.oci, elems.oci_len, &ci,
2564 channel_width_to_int(ci.chanwidth),
2565 ci.seg1_idx) != 0) {
2566 wpa_printf(MSG_WARNING, "%s", ocv_errorstr);
2567 return;
2568 }
2569 }
2570#endif /* CONFIG_OCV */
2571
2572 if (data[0] == WLAN_SA_QUERY_REQUEST)
2573 sme_process_sa_query_request(wpa_s, sa, data, len);
2574 else if (data[0] == WLAN_SA_QUERY_RESPONSE)
2575 sme_process_sa_query_response(wpa_s, sa, data, len);
2576}
2577
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002578#endif /* CONFIG_IEEE80211W */