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[thirdparty/hostap.git] / wpa_supplicant / sme.c
CommitLineData
c2a04078
JM		 1/*
2 * wpa_supplicant - SME
6ac4b15e 3 * Copyright (c) 2009-2014, Jouni Malinen <j@w1.fi>
c2a04078 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
c2a04078
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
7d878ca7 12#include "utils/eloop.h"
90973fb2 13#include "common/ieee802_11_defs.h"
d9a27b04 14#include "common/ieee802_11_common.h"
c2a04078 15#include "eapol_supp/eapol_supp_sm.h"
90973fb2 16#include "common/wpa_common.h"
98efcc41 17#include "common/sae.h"
3acb5005
JM		 18#include "rsn_supp/wpa.h"
19#include "rsn_supp/pmksa_cache.h"
c2a04078
JM		 20#include "config.h"
21#include "wpa_supplicant_i.h"
2d5b792d 22#include "driver_i.h"
c2a04078
JM		 23#include "wpas_glue.h"
24#include "wps_supplicant.h"
5f3a6aa0 25#include "p2p_supplicant.h"
8bac466b 26#include "notify.h"
6fa81a3b 27#include "bss.h"
9ba9fa07 28#include "scan.h"
c2a04078 29#include "sme.h"
cb418324 30#include "hs20_supplicant.h"
c2a04078 31
e29853bb
BG		 32#define SME_AUTH_TIMEOUT 5
33#define SME_ASSOC_TIMEOUT 5
34
35static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx);
36static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx);
c3701c66 37static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx);
e29853bb
BG		 38#ifdef CONFIG_IEEE80211W
39static void sme_stop_sa_query(struct wpa_supplicant *wpa_s);
40#endif /* CONFIG_IEEE80211W */
41
42
c10347f2
JM		 43#ifdef CONFIG_SAE
44
625f202a
JM		 45static int index_within_array(const int *array, int idx)
46{
47 int i;
48 for (i = 0; i < idx; i++) {
18ca7332 49 if (array[i] <= 0)
625f202a
JM		 50 return 0;
51 }
52 return 1;
53}
54
55
56static int sme_set_sae_group(struct wpa_supplicant *wpa_s)
57{
58 int *groups = wpa_s->conf->sae_groups;
18ca7332 59 int default_groups[] = { 19, 20, 21, 25, 26, 0 };
625f202a 60
18ca7332 61 if (!groups || groups[0] <= 0)
625f202a
JM		 62 groups = default_groups;
63
64 /* Configuration may have changed, so validate current index */
65 if (!index_within_array(groups, wpa_s->sme.sae_group_index))
66 return -1;
67
68 for (;;) {
69 int group = groups[wpa_s->sme.sae_group_index];
04e6c4cc 70 if (group <= 0)
625f202a
JM		 71 break;
72 if (sae_set_group(&wpa_s->sme.sae, group) == 0) {
73 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected SAE group %d",
74 wpa_s->sme.sae.group);
75 return 0;
76 }
77 wpa_s->sme.sae_group_index++;
78 }
79
80 return -1;
81}
82
83
8e31e955
JM		 84static struct wpabuf * sme_auth_build_sae_commit(struct wpa_supplicant *wpa_s,
85 struct wpa_ssid *ssid,
5ff39c13 86 const u8 *bssid, int external)
c10347f2
JM		 87{
88 struct wpabuf *buf;
d136c376 89 size_t len;
a34ca59e 90 const char *password;
c10347f2 91
a0f19e9c
JM		 92#ifdef CONFIG_TESTING_OPTIONS
93 if (wpa_s->sae_commit_override) {
94 wpa_printf(MSG_DEBUG, "SAE: TESTING - commit override");
95 buf = wpabuf_alloc(4 + wpabuf_len(wpa_s->sae_commit_override));
96 if (!buf)
97 return NULL;
98 wpabuf_put_le16(buf, 1); /* Transaction seq# */
99 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
100 wpabuf_put_buf(buf, wpa_s->sae_commit_override);
101 return buf;
102 }
103#endif /* CONFIG_TESTING_OPTIONS */
104
a34ca59e
JM		 105 password = ssid->sae_password;
106 if (!password)
107 password = ssid->passphrase;
108 if (!password) {
8e31e955
JM		 109 wpa_printf(MSG_DEBUG, "SAE: No password available");
110 return NULL;
111 }
112
625f202a
JM		 113 if (sme_set_sae_group(wpa_s) < 0) {
114 wpa_printf(MSG_DEBUG, "SAE: Failed to select group");
a46d72d7 115 return NULL;
625f202a 116 }
a46d72d7 117
8e31e955 118 if (sae_prepare_commit(wpa_s->own_addr, bssid,
a34ca59e 119 (u8 *) password, os_strlen(password),
8e31e955
JM		 120 &wpa_s->sme.sae) < 0) {
121 wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE");
122 return NULL;
123 }
124
d136c376
JM		 125 len = wpa_s->sme.sae_token ? wpabuf_len(wpa_s->sme.sae_token) : 0;
126 buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + len);
c10347f2
JM		 127 if (buf == NULL)
128 return NULL;
5ff39c13
SD		 129 if (!external) {
130 wpabuf_put_le16(buf, 1); /* Transaction seq# */
131 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
132 }
d136c376 133 sae_write_commit(&wpa_s->sme.sae, buf, wpa_s->sme.sae_token);
c10347f2
JM		 134
135 return buf;
136}
137
138
5ff39c13
SD		 139static struct wpabuf * sme_auth_build_sae_confirm(struct wpa_supplicant *wpa_s,
140 int external)
c10347f2
JM		 141{
142 struct wpabuf *buf;
143
fb8fcc29 144 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN);
c10347f2
JM		 145 if (buf == NULL)
146 return NULL;
147
5ff39c13
SD		 148 if (!external) {
149 wpabuf_put_le16(buf, 2); /* Transaction seq# */
150 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
151 }
fb8fcc29 152 sae_write_confirm(&wpa_s->sme.sae, buf);
c10347f2
JM		 153
154 return buf;
155}
156
157#endif /* CONFIG_SAE */
158
159
b361d580
AK		 160/**
161 * sme_auth_handle_rrm - Handle RRM aspects of current authentication attempt
162 * @wpa_s: Pointer to wpa_supplicant data
163 * @bss: Pointer to the bss which is the target of authentication attempt
164 */
165static void sme_auth_handle_rrm(struct wpa_supplicant *wpa_s,
166 struct wpa_bss *bss)
167{
168 const u8 rrm_ie_len = 5;
169 u8 *pos;
170 const u8 *rrm_ie;
171
172 wpa_s->rrm.rrm_used = 0;
173
174 wpa_printf(MSG_DEBUG,
175 "RRM: Determining whether RRM can be used - device support: 0x%x",
176 wpa_s->drv_rrm_flags);
177
178 rrm_ie = wpa_bss_get_ie(bss, WLAN_EID_RRM_ENABLED_CAPABILITIES);
179 if (!rrm_ie || !(bss->caps & IEEE80211_CAP_RRM)) {
180 wpa_printf(MSG_DEBUG, "RRM: No RRM in network");
181 return;
182 }
183
00ed0aa2
BL		 184 if (!((wpa_s->drv_rrm_flags &
185 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) &&
186 (wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) &&
187 !(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) {
b361d580
AK		 188 wpa_printf(MSG_DEBUG,
189 "RRM: Insufficient RRM support in driver - do not use RRM");
190 return;
191 }
192
849367af
JM		 193 if (sizeof(wpa_s->sme.assoc_req_ie) <
194 wpa_s->sme.assoc_req_ie_len + rrm_ie_len + 2) {
b361d580
AK		 195 wpa_printf(MSG_INFO,
196 "RRM: Unable to use RRM, no room for RRM IE");
197 return;
198 }
199
200 wpa_printf(MSG_DEBUG, "RRM: Adding RRM IE to Association Request");
201 pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
b361d580
AK		 202 os_memset(pos, 0, 2 + rrm_ie_len);
203 *pos++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
204 *pos++ = rrm_ie_len;
70d1e728
AO		 205
206 /* Set supported capabilites flags */
207 if (wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)
208 *pos |= WLAN_RRM_CAPS_LINK_MEASUREMENT;
209
d7342014
JM		 210 *pos |= WLAN_RRM_CAPS_BEACON_REPORT_PASSIVE |
211 WLAN_RRM_CAPS_BEACON_REPORT_ACTIVE |
212 WLAN_RRM_CAPS_BEACON_REPORT_TABLE;
76196ddb 213
4a742011
DS		 214 if (wpa_s->lci)
215 pos[1] |= WLAN_RRM_CAPS_LCI_MEASUREMENT;
216
b361d580
AK		 217 wpa_s->sme.assoc_req_ie_len += rrm_ie_len + 2;
218 wpa_s->rrm.rrm_used = 1;
219}
220
221
215ae884
JM		 222static void sme_send_authentication(struct wpa_supplicant *wpa_s,
223 struct wpa_bss *bss, struct wpa_ssid *ssid,
224 int start)
c2a04078
JM		 225{
226 struct wpa_driver_auth_params params;
8bac466b 227 struct wpa_ssid *old_ssid;
fdbe50ed 228#ifdef CONFIG_IEEE80211R
c2a04078 229 const u8 *ie;
fdbe50ed 230#endif /* CONFIG_IEEE80211R */
af3e362f 231#if defined(CONFIG_IEEE80211R) || defined(CONFIG_FILS)
c2a04078 232 const u8 *md = NULL;
af3e362f 233#endif /* CONFIG_IEEE80211R || CONFIG_FILS */
8bac466b 234 int i, bssid_changed;
c10347f2 235 struct wpabuf *resp = NULL;
0bbaa9b9 236 u8 ext_capab[18];
03e47c9c 237 int ext_capab_len;
59b416c7 238 int skip_auth;
c2a04078
JM		 239
240 if (bss == NULL) {
f049052b
BG		 241 wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
242 "the network");
6ac4b15e 243 wpas_connect_work_done(wpa_s);
c2a04078
JM		 244 return;
245 }
246
59b416c7
JM		 247 skip_auth = wpa_s->conf->reassoc_same_bss_optim &&
248 wpa_s->reassoc_same_bss;
8f770587
JM		 249 wpa_s->current_bss = bss;
250
c2a04078
JM		 251 os_memset(&params, 0, sizeof(params));
252 wpa_s->reassociate = 0;
253
254 params.freq = bss->freq;
255 params.bssid = bss->bssid;
6fa81a3b
JM		 256 params.ssid = bss->ssid;
257 params.ssid_len = bss->ssid_len;
2f4f73b1 258 params.p2p = ssid->p2p_group;
c2a04078 259
62fa124c
JM		 260 if (wpa_s->sme.ssid_len != params.ssid_len ||
261 os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0)
262 wpa_s->sme.prev_bssid_set = 0;
263
c2a04078
JM		 264 wpa_s->sme.freq = params.freq;
265 os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
266 wpa_s->sme.ssid_len = params.ssid_len;
267
abd9fafa 268 params.auth_alg = WPA_AUTH_ALG_OPEN;
c2a04078
JM		 269#ifdef IEEE8021X_EAPOL
270 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
271 if (ssid->leap) {
272 if (ssid->non_leap == 0)
abd9fafa 273 params.auth_alg = WPA_AUTH_ALG_LEAP;
c2a04078 274 else
abd9fafa 275 params.auth_alg |= WPA_AUTH_ALG_LEAP;
c2a04078
JM		 276 }
277 }
278#endif /* IEEE8021X_EAPOL */
f049052b
BG		 279 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
280 params.auth_alg);
c2a04078 281 if (ssid->auth_alg) {
abd9fafa 282 params.auth_alg = ssid->auth_alg;
f049052b
BG		 283 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
284 "0x%x", params.auth_alg);
c2a04078 285 }
c10347f2 286#ifdef CONFIG_SAE
bc26ac50 287 wpa_s->sme.sae_pmksa_caching = 0;
c10347f2
JM		 288 if (wpa_key_mgmt_sae(ssid->key_mgmt)) {
289 const u8 *rsn;
290 struct wpa_ie_data ied;
291
292 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
267ac3bc
JM		 293 if (!rsn) {
294 wpa_dbg(wpa_s, MSG_DEBUG,
295 "SAE enabled, but target BSS does not advertise RSN");
296 } else if (wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 &&
297 wpa_key_mgmt_sae(ied.key_mgmt)) {
298 wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg");
299 params.auth_alg = WPA_AUTH_ALG_SAE;
300 } else {
301 wpa_dbg(wpa_s, MSG_DEBUG,
302 "SAE enabled, but target BSS does not advertise SAE AKM for RSN");
c10347f2
JM		 303 }
304 }
305#endif /* CONFIG_SAE */
c2a04078 306
a0b2f99b
JM		 307 for (i = 0; i < NUM_WEP_KEYS; i++) {
308 if (ssid->wep_key_len[i])
309 params.wep_key[i] = ssid->wep_key[i];
310 params.wep_key_len[i] = ssid->wep_key_len[i];
311 }
312 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
313
8bac466b 314 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
c2a04078
JM		 315 os_memset(wpa_s->bssid, 0, ETH_ALEN);
316 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
8bac466b
JM		 317 if (bssid_changed)
318 wpas_notify_bssid_changed(wpa_s);
c2a04078 319
f337f0e9
JM		 320 if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
321 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
0bf927a0 322 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
c2a04078 323 int try_opportunistic;
869af307
JM		 324 const u8 *cache_id = NULL;
325
6e202021
JM		 326 try_opportunistic = (ssid->proactive_key_caching < 0 ?
327 wpa_s->conf->okc :
328 ssid->proactive_key_caching) &&
c2a04078 329 (ssid->proto & WPA_PROTO_RSN);
869af307
JM		 330#ifdef CONFIG_FILS
331 if (wpa_key_mgmt_fils(ssid->key_mgmt))
332 cache_id = wpa_bss_get_fils_cache_id(bss);
333#endif /* CONFIG_FILS */
c2a04078
JM		 334 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
335 wpa_s->current_ssid,
852b2f27
JM		 336 try_opportunistic, cache_id,
337 0) == 0)
ba422613 338 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
c2a04078
JM		 339 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
340 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
341 wpa_s->sme.assoc_req_ie,
342 &wpa_s->sme.assoc_req_ie_len)) {
f049052b
BG		 343 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
344 "key management and encryption suites");
6ac4b15e 345 wpas_connect_work_done(wpa_s);
c2a04078
JM		 346 return;
347 }
a3f7e518
JM		 348 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
349 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
350 /*
351 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
352 * use non-WPA since the scan results did not indicate that the
353 * AP is using WPA or WPA2.
354 */
355 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
356 wpa_s->sme.assoc_req_ie_len = 0;
0bf927a0 357 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
c2a04078
JM		 358 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
359 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
360 wpa_s->sme.assoc_req_ie,
361 &wpa_s->sme.assoc_req_ie_len)) {
f049052b
BG		 362 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
363 "key management and encryption suites (no "
364 "scan results)");
6ac4b15e 365 wpas_connect_work_done(wpa_s);
c2a04078
JM		 366 return;
367 }
368#ifdef CONFIG_WPS
369 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
370 struct wpabuf *wps_ie;
371 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
372 if (wps_ie && wpabuf_len(wps_ie) <=
373 sizeof(wpa_s->sme.assoc_req_ie)) {
374 wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
375 os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
376 wpa_s->sme.assoc_req_ie_len);
377 } else
378 wpa_s->sme.assoc_req_ie_len = 0;
379 wpabuf_free(wps_ie);
380 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
381#endif /* CONFIG_WPS */
382 } else {
383 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
384 wpa_s->sme.assoc_req_ie_len = 0;
385 }
386
387#ifdef CONFIG_IEEE80211R
6fa81a3b 388 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
c2a04078
JM		 389 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
390 md = ie + 2;
e7846b68 391 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
c2a04078
JM		 392 if (md) {
393 /* Prepare for the next transition */
76b7981d 394 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
c2a04078
JM		 395 }
396
af3e362f
JM		 397 if (md && !wpa_key_mgmt_ft(ssid->key_mgmt))
398 md = NULL;
399 if (md) {
400 wpa_dbg(wpa_s, MSG_DEBUG, "SME: FT mobility domain %02x%02x",
401 md[0], md[1]);
402
c2a04078
JM		 403 if (wpa_s->sme.assoc_req_ie_len + 5 <
404 sizeof(wpa_s->sme.assoc_req_ie)) {
405 struct rsn_mdie *mdie;
406 u8 *pos = wpa_s->sme.assoc_req_ie +
407 wpa_s->sme.assoc_req_ie_len;
408 *pos++ = WLAN_EID_MOBILITY_DOMAIN;
409 *pos++ = sizeof(*mdie);
410 mdie = (struct rsn_mdie *) pos;
411 os_memcpy(mdie->mobility_domain, md,
412 MOBILITY_DOMAIN_ID_LEN);
f4ec630d 413 mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
c2a04078
JM		 414 wpa_s->sme.assoc_req_ie_len += 5;
415 }
416
417 if (wpa_s->sme.ft_used &&
0d7b4409
JM		 418 os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 &&
419 wpa_sm_has_ptk(wpa_s->wpa)) {
f049052b
BG		 420 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT "
421 "over-the-air");
abd9fafa 422 params.auth_alg = WPA_AUTH_ALG_FT;
c2a04078
JM		 423 params.ie = wpa_s->sme.ft_ies;
424 params.ie_len = wpa_s->sme.ft_ies_len;
425 }
426 }
427#endif /* CONFIG_IEEE80211R */
428
429#ifdef CONFIG_IEEE80211W
3f56a2b7 430 wpa_s->sme.mfp = wpas_get_ssid_pmf(wpa_s, ssid);
62d49803 431 if (wpa_s->sme.mfp != NO_MGMT_FRAME_PROTECTION) {
6fa81a3b 432 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
c2a04078
JM		 433 struct wpa_ie_data _ie;
434 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
435 _ie.capabilities &
436 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
f049052b
BG		 437 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports "
438 "MFP: require MFP");
c2a04078
JM		 439 wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
440 }
441 }
442#endif /* CONFIG_IEEE80211W */
443
5f3a6aa0
JM		 444#ifdef CONFIG_P2P
445 if (wpa_s->global->p2p) {
446 u8 *pos;
447 size_t len;
448 int res;
5f3a6aa0
JM		 449 pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
450 len = sizeof(wpa_s->sme.assoc_req_ie) -
451 wpa_s->sme.assoc_req_ie_len;
ffad8858
JM		 452 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
453 ssid->p2p_group);
5f3a6aa0
JM		 454 if (res >= 0)
455 wpa_s->sme.assoc_req_ie_len += res;
456 }
457#endif /* CONFIG_P2P */
458
b36a3a65
AN		 459#ifdef CONFIG_FST
460 if (wpa_s->fst_ies) {
461 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
462
463 if (wpa_s->sme.assoc_req_ie_len + fst_ies_len <=
464 sizeof(wpa_s->sme.assoc_req_ie)) {
465 os_memcpy(wpa_s->sme.assoc_req_ie +
466 wpa_s->sme.assoc_req_ie_len,
467 wpabuf_head(wpa_s->fst_ies),
468 fst_ies_len);
469 wpa_s->sme.assoc_req_ie_len += fst_ies_len;
470 }
471 }
472#endif /* CONFIG_FST */
473
a0c38e5d
AS		 474 sme_auth_handle_rrm(wpa_s, bss);
475
065c029a 476 wpa_s->sme.assoc_req_ie_len += wpas_supp_op_class_ie(
477 wpa_s, bss->freq,
478 wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
479 sizeof(wpa_s->sme.assoc_req_ie) - wpa_s->sme.assoc_req_ie_len);
5e57ba25 480
cc9a2575
KV		 481 if (params.p2p)
482 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
483 else
484 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
485
0bbaa9b9
JM		 486 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
487 sizeof(ext_capab));
03e47c9c 488 if (ext_capab_len > 0) {
92cbcf91
JM		 489 u8 *pos = wpa_s->sme.assoc_req_ie;
490 if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN)
491 pos += 2 + pos[1];
03e47c9c 492 os_memmove(pos + ext_capab_len, pos,
92cbcf91
JM		 493 wpa_s->sme.assoc_req_ie_len -
494 (pos - wpa_s->sme.assoc_req_ie));
03e47c9c
JM		 495 wpa_s->sme.assoc_req_ie_len += ext_capab_len;
496 os_memcpy(pos, ext_capab, ext_capab_len);
92cbcf91 497 }
92cbcf91 498
c484b198
AS		 499#ifdef CONFIG_HS20
500 if (is_hs20_network(wpa_s, ssid, bss)) {
501 struct wpabuf *hs20;
502
503 hs20 = wpabuf_alloc(20);
504 if (hs20) {
505 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
506 size_t len;
507
508 wpas_hs20_add_indication(hs20, pps_mo_id);
509 len = sizeof(wpa_s->sme.assoc_req_ie) -
510 wpa_s->sme.assoc_req_ie_len;
511 if (wpabuf_len(hs20) <= len) {
512 os_memcpy(wpa_s->sme.assoc_req_ie +
513 wpa_s->sme.assoc_req_ie_len,
514 wpabuf_head(hs20), wpabuf_len(hs20));
515 wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20);
516 }
517 wpabuf_free(hs20);
518 }
519 }
520#endif /* CONFIG_HS20 */
521
d29fa3a7
JM		 522 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
523 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
524 size_t len;
525
526 len = sizeof(wpa_s->sme.assoc_req_ie) -
527 wpa_s->sme.assoc_req_ie_len;
528 if (wpabuf_len(buf) <= len) {
529 os_memcpy(wpa_s->sme.assoc_req_ie +
530 wpa_s->sme.assoc_req_ie_len,
531 wpabuf_head(buf), wpabuf_len(buf));
532 wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf);
533 }
534 }
535
92c6e2e3 536#ifdef CONFIG_MBO
065c029a 537 if (wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE)) {
5e57ba25 538 int len;
92c6e2e3 539
5e57ba25
AS		 540 len = wpas_mbo_ie(wpa_s, wpa_s->sme.assoc_req_ie +
541 wpa_s->sme.assoc_req_ie_len,
542 sizeof(wpa_s->sme.assoc_req_ie) -
543 wpa_s->sme.assoc_req_ie_len);
544 if (len >= 0)
545 wpa_s->sme.assoc_req_ie_len += len;
92c6e2e3
DS		 546 }
547#endif /* CONFIG_MBO */
548
c10347f2 549#ifdef CONFIG_SAE
59b416c7 550 if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE &&
869af307 551 pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, ssid, 0,
852b2f27 552 NULL, WPA_KEY_MGMT_SAE) == 0) {
bc26ac50
JM		 553 wpa_dbg(wpa_s, MSG_DEBUG,
554 "PMKSA cache entry found - try to use PMKSA caching instead of new SAE authentication");
06b1a104 555 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
bc26ac50
JM		 556 params.auth_alg = WPA_AUTH_ALG_OPEN;
557 wpa_s->sme.sae_pmksa_caching = 1;
558 }
559
59b416c7 560 if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE) {
c10347f2 561 if (start)
8e31e955 562 resp = sme_auth_build_sae_commit(wpa_s, ssid,
5ff39c13 563 bss->bssid, 0);
c10347f2 564 else
5ff39c13 565 resp = sme_auth_build_sae_confirm(wpa_s, 0);
6ac4b15e 566 if (resp == NULL) {
81648d00 567 wpas_connection_failed(wpa_s, bss->bssid);
c10347f2 568 return;
6ac4b15e 569 }
ce16c489
JM		 570 params.auth_data = wpabuf_head(resp);
571 params.auth_data_len = wpabuf_len(resp);
dd43026a 572 wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED;
c10347f2
JM		 573 }
574#endif /* CONFIG_SAE */
575
f00b9b88
JM		 576 old_ssid = wpa_s->current_ssid;
577 wpa_s->current_ssid = ssid;
578 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
579 wpa_supplicant_initiate_eapol(wpa_s);
580
581#ifdef CONFIG_FILS
582 /* TODO: FILS operations can in some cases be done between different
583 * network_ctx (i.e., same credentials can be used with multiple
584 * networks). */
585 if (params.auth_alg == WPA_AUTH_ALG_OPEN &&
586 wpa_key_mgmt_fils(ssid->key_mgmt)) {
64983516
JM		 587 const u8 *indic;
588 u16 fils_info;
589
590 /*
591 * Check FILS Indication element (FILS Information field) bits
592 * indicating supported authentication algorithms against local
593 * configuration (ssid->fils_dh_group). Try to use FILS
594 * authentication only if the AP supports the combination in the
595 * network profile. */
596 indic = wpa_bss_get_ie(bss, WLAN_EID_FILS_INDICATION);
597 if (!indic || indic[1] < 2) {
598 wpa_printf(MSG_DEBUG, "SME: " MACSTR
599 " does not include FILS Indication element - cannot use FILS authentication with it",
600 MAC2STR(bss->bssid));
601 goto no_fils;
602 }
603
604 fils_info = WPA_GET_LE16(indic + 2);
605 if (ssid->fils_dh_group == 0 && !(fils_info & BIT(9))) {
606 wpa_printf(MSG_DEBUG, "SME: " MACSTR
607 " does not support FILS SK without PFS - cannot use FILS authentication with it",
608 MAC2STR(bss->bssid));
609 goto no_fils;
610 }
611 if (ssid->fils_dh_group != 0 && !(fils_info & BIT(10))) {
612 wpa_printf(MSG_DEBUG, "SME: " MACSTR
613 " does not support FILS SK with PFS - cannot use FILS authentication with it",
614 MAC2STR(bss->bssid));
615 goto no_fils;
616 }
617
f00b9b88 618 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
869af307 619 ssid, 0,
852b2f27
JM		 620 wpa_bss_get_fils_cache_id(bss),
621 0) == 0)
f00b9b88
JM		 622 wpa_printf(MSG_DEBUG,
623 "SME: Try to use FILS with PMKSA caching");
af3e362f 624 resp = fils_build_auth(wpa_s->wpa, ssid->fils_dh_group, md);
f00b9b88 625 if (resp) {
76e20f4f
JM		 626 int auth_alg;
627
628 if (ssid->fils_dh_group)
629 wpa_printf(MSG_DEBUG,
630 "SME: Try to use FILS SK authentication with PFS (DH Group %u)",
631 ssid->fils_dh_group);
632 else
633 wpa_printf(MSG_DEBUG,
634 "SME: Try to use FILS SK authentication without PFS");
635 auth_alg = ssid->fils_dh_group ?
636 WPA_AUTH_ALG_FILS_SK_PFS : WPA_AUTH_ALG_FILS;
637 params.auth_alg = auth_alg;
f00b9b88
JM		 638 params.auth_data = wpabuf_head(resp);
639 params.auth_data_len = wpabuf_len(resp);
76e20f4f 640 wpa_s->sme.auth_alg = auth_alg;
f00b9b88
JM		 641 }
642 }
64983516 643no_fils:
f00b9b88
JM		 644#endif /* CONFIG_FILS */
645
a4cba8f1 646 wpa_supplicant_cancel_sched_scan(wpa_s);
c2a04078
JM		 647 wpa_supplicant_cancel_scan(wpa_s);
648
f049052b 649 wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR
c2a04078
JM		 650 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
651 wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
652
6aea02e5 653 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
c2a04078
JM		 654 wpa_clear_keys(wpa_s, bss->bssid);
655 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
8bac466b
JM		 656 if (old_ssid != wpa_s->current_ssid)
657 wpas_notify_network_changed(wpa_s);
c2a04078 658
ece4ac5f
MG		 659#ifdef CONFIG_HS20
660 hs20_configure_frame_filters(wpa_s);
661#endif /* CONFIG_HS20 */
662
d0df6437
IP		 663#ifdef CONFIG_P2P
664 /*
665 * If multi-channel concurrency is not supported, check for any
666 * frequency conflict. In case of any frequency conflict, remove the
667 * least prioritized connection.
668 */
669 if (wpa_s->num_multichan_concurrent < 2) {
670 int freq, num;
671 num = get_shared_radio_freqs(wpa_s, &freq, 1);
672 if (num > 0 && freq > 0 && freq != params.freq) {
673 wpa_printf(MSG_DEBUG,
674 "Conflicting frequency found (%d != %d)",
675 freq, params.freq);
676 if (wpas_p2p_handle_frequency_conflicts(wpa_s,
677 params.freq,
678 ssid) < 0) {
679 wpas_connection_failed(wpa_s, bss->bssid);
680 wpa_supplicant_mark_disassoc(wpa_s);
681 wpabuf_free(resp);
682 wpas_connect_work_done(wpa_s);
683 return;
684 }
685 }
686 }
687#endif /* CONFIG_P2P */
688
59b416c7
JM		 689 if (skip_auth) {
690 wpa_msg(wpa_s, MSG_DEBUG,
691 "SME: Skip authentication step on reassoc-to-same-BSS");
692 wpabuf_free(resp);
693 sme_associate(wpa_s, ssid->mode, bss->bssid, WLAN_AUTH_OPEN);
694 return;
695 }
696
697
62c72d72 698 wpa_s->sme.auth_alg = params.auth_alg;
c2a04078 699 if (wpa_drv_authenticate(wpa_s, &params) < 0) {
f049052b 700 wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
c2a04078 701 "driver failed");
ed57c590 702 wpas_connection_failed(wpa_s, bss->bssid);
1193dc8f 703 wpa_supplicant_mark_disassoc(wpa_s);
c10347f2 704 wpabuf_free(resp);
6ac4b15e 705 wpas_connect_work_done(wpa_s);
c2a04078
JM		 706 return;
707 }
708
e29853bb
BG		 709 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
710 NULL);
c2a04078
JM		 711
712 /*
713 * Association will be started based on the authentication event from
714 * the driver.
715 */
c10347f2
JM		 716
717 wpabuf_free(resp);
718}
719
720
6ac4b15e
JM		 721static void sme_auth_start_cb(struct wpa_radio_work *work, int deinit)
722{
723 struct wpa_connect_work *cwork = work->ctx;
724 struct wpa_supplicant *wpa_s = work->wpa_s;
725
726 if (deinit) {
b3253ebb
AO		 727 if (work->started)
728 wpa_s->connect_work = NULL;
729
6ac4b15e
JM		 730 wpas_connect_work_free(cwork);
731 return;
732 }
733
734 wpa_s->connect_work = work;
735
a7f5271d 736 if (cwork->bss_removed ||
6108536d
HW		 737 !wpas_valid_bss_ssid(wpa_s, cwork->bss, cwork->ssid) ||
738 wpas_network_disabled(wpa_s, cwork->ssid)) {
6ac4b15e
JM		 739 wpa_dbg(wpa_s, MSG_DEBUG, "SME: BSS/SSID entry for authentication not valid anymore - drop connection attempt");
740 wpas_connect_work_done(wpa_s);
741 return;
742 }
743
2c2c5579
JM		 744 /* Starting new connection, so clear the possibly used WPA IE from the
745 * previous association. */
746 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
747
6ac4b15e
JM		 748 sme_send_authentication(wpa_s, cwork->bss, cwork->ssid, 1);
749}
750
751
c10347f2
JM		 752void sme_authenticate(struct wpa_supplicant *wpa_s,
753 struct wpa_bss *bss, struct wpa_ssid *ssid)
754{
6ac4b15e
JM		 755 struct wpa_connect_work *cwork;
756
757 if (bss == NULL || ssid == NULL)
758 return;
759 if (wpa_s->connect_work) {
760 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reject sme_authenticate() call since connect_work exist");
761 return;
762 }
763
f0e30c84 764 if (radio_work_pending(wpa_s, "sme-connect")) {
f1c4dbf5
IP		 765 /*
766 * The previous sme-connect work might no longer be valid due to
767 * the fact that the BSS list was updated. In addition, it makes
768 * sense to adhere to the 'newer' decision.
769 */
770 wpa_dbg(wpa_s, MSG_DEBUG,
771 "SME: Remove previous pending sme-connect");
772 radio_remove_works(wpa_s, "sme-connect", 0);
f0e30c84
JM		 773 }
774
4ead7cfd
KV		 775 wpas_abort_ongoing_scan(wpa_s);
776
6ac4b15e
JM		 777 cwork = os_zalloc(sizeof(*cwork));
778 if (cwork == NULL)
779 return;
780 cwork->bss = bss;
781 cwork->ssid = ssid;
782 cwork->sme = 1;
783
98efcc41 784#ifdef CONFIG_SAE
dd43026a 785 wpa_s->sme.sae.state = SAE_NOTHING;
98efcc41 786 wpa_s->sme.sae.send_confirm = 0;
18ca7332 787 wpa_s->sme.sae_group_index = 0;
98efcc41 788#endif /* CONFIG_SAE */
6ac4b15e
JM		 789
790 if (radio_add_work(wpa_s, bss->freq, "sme-connect", 1,
791 sme_auth_start_cb, cwork) < 0)
792 wpas_connect_work_free(cwork);
c2a04078
JM		 793}
794
795
c10347f2 796#ifdef CONFIG_SAE
21af6d15 797
5ff39c13
SD		 798static int sme_external_auth_build_buf(struct wpabuf *buf,
799 struct wpabuf *params,
800 const u8 *sa, const u8 *da,
801 u16 auth_transaction, u16 seq_num)
802{
803 struct ieee80211_mgmt *resp;
804
805 resp = wpabuf_put(buf, offsetof(struct ieee80211_mgmt,
806 u.auth.variable));
807
808 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
809 (WLAN_FC_STYPE_AUTH << 4));
810 os_memcpy(resp->da, da, ETH_ALEN);
811 os_memcpy(resp->sa, sa, ETH_ALEN);
812 os_memcpy(resp->bssid, da, ETH_ALEN);
813 resp->u.auth.auth_alg = WLAN_AUTH_SAE;
814 resp->seq_ctrl = seq_num << 4;
815 resp->u.auth.auth_transaction = auth_transaction;
816 resp->u.auth.status_code = WLAN_STATUS_SUCCESS;
817 if (params)
818 wpabuf_put_buf(buf, params);
819
820 return 0;
821}
822
823
824static void sme_external_auth_send_sae_commit(struct wpa_supplicant *wpa_s,
825 const u8 *bssid,
826 struct wpa_ssid *ssid)
827{
828 struct wpabuf *resp, *buf;
829
830 resp = sme_auth_build_sae_commit(wpa_s, ssid, bssid, 1);
831 if (!resp)
832 return;
833
834 wpa_s->sme.sae.state = SAE_COMMITTED;
835 buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + wpabuf_len(resp));
836 if (!buf) {
837 wpabuf_free(resp);
838 return;
839 }
840
841 wpa_s->sme.seq_num++;
842 sme_external_auth_build_buf(buf, resp, wpa_s->own_addr,
843 bssid, 1, wpa_s->sme.seq_num);
844 wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1, 0);
845 wpabuf_free(resp);
846 wpabuf_free(buf);
847}
848
849
850static void sme_send_external_auth_status(struct wpa_supplicant *wpa_s,
851 u16 status)
852{
853 struct external_auth params;
854
855 os_memset(&params, 0, sizeof(params));
856 params.status = status;
857 os_memcpy(params.ssid, wpa_s->sme.ext_auth.ssid,
858 wpa_s->sme.ext_auth.ssid_len);
859 params.ssid_len = wpa_s->sme.ext_auth.ssid_len;
860 os_memcpy(params.bssid, wpa_s->sme.ext_auth.bssid, ETH_ALEN);
861 wpa_drv_send_external_auth_status(wpa_s, &params);
862}
863
864
865static void sme_handle_external_auth_start(struct wpa_supplicant *wpa_s,
866 union wpa_event_data *data)
867{
868 struct wpa_ssid *ssid;
869 size_t ssid_str_len = data->external_auth.ssid_len;
870 u8 *ssid_str = data->external_auth.ssid;
871
872 /* Get the SSID conf from the ssid string obtained */
873 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
874 if (!wpas_network_disabled(wpa_s, ssid) &&
875 ssid_str_len == ssid->ssid_len &&
876 os_memcmp(ssid_str, ssid->ssid, ssid_str_len) == 0)
877 break;
878 }
879 if (ssid)
880 sme_external_auth_send_sae_commit(wpa_s,
881 data->external_auth.bssid,
882 ssid);
883 else
884 sme_send_external_auth_status(wpa_s,
885 WLAN_STATUS_UNSPECIFIED_FAILURE);
886}
887
888
889static void sme_external_auth_send_sae_confirm(struct wpa_supplicant *wpa_s,
890 const u8 *da)
891{
892 struct wpabuf *resp, *buf;
893
894 resp = sme_auth_build_sae_confirm(wpa_s, 1);
895 if (!resp) {
896 wpa_printf(MSG_DEBUG, "SAE: Confirm message buf alloc failure");
897 return;
898 }
899
900 wpa_s->sme.sae.state = SAE_CONFIRMED;
901 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN + wpabuf_len(resp));
902 if (!buf) {
903 wpa_printf(MSG_DEBUG, "SAE: Auth Confirm buf alloc failure");
904 wpabuf_free(resp);
905 return;
906 }
907 wpa_s->sme.seq_num++;
908 sme_external_auth_build_buf(buf, resp, wpa_s->own_addr,
909 da, 2, wpa_s->sme.seq_num);
910 wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1, 0);
911 wpabuf_free(resp);
912 wpabuf_free(buf);
913}
914
915
916void sme_external_auth_trigger(struct wpa_supplicant *wpa_s,
917 union wpa_event_data *data)
918{
919 if (RSN_SELECTOR_GET(&data->external_auth.key_mgmt_suite) !=
920 RSN_AUTH_KEY_MGMT_SAE)
921 return;
922
923 if (data->external_auth.action == EXT_AUTH_START) {
924 os_memcpy(&wpa_s->sme.ext_auth, data,
925 sizeof(struct external_auth));
926 wpa_s->sme.seq_num = 0;
927 wpa_s->sme.sae.state = SAE_NOTHING;
928 wpa_s->sme.sae.send_confirm = 0;
929 wpa_s->sme.sae_group_index = 0;
930 sme_handle_external_auth_start(wpa_s, data);
931 } else if (data->external_auth.action == EXT_AUTH_ABORT) {
932 /* Report failure to driver for the wrong trigger */
933 sme_send_external_auth_status(wpa_s,
934 WLAN_STATUS_UNSPECIFIED_FAILURE);
935 }
936}
937
938
c10347f2 939static int sme_sae_auth(struct wpa_supplicant *wpa_s, u16 auth_transaction,
5ff39c13
SD		 940 u16 status_code, const u8 *data, size_t len,
941 int external, const u8 *sa)
c10347f2 942{
a959a3b6
MH		 943 int *groups;
944
c10347f2
JM		 945 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE authentication transaction %u "
946 "status code %u", auth_transaction, status_code);
c10347f2 947
d136c376
JM		 948 if (auth_transaction == 1 &&
949 status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ &&
950 wpa_s->sme.sae.state == SAE_COMMITTED &&
5ff39c13 951 (external || wpa_s->current_bss) && wpa_s->current_ssid) {
a959a3b6
MH		 952 int default_groups[] = { 19, 20, 21, 25, 26, 0 };
953 u16 group;
954
955 groups = wpa_s->conf->sae_groups;
956 if (!groups || groups[0] <= 0)
957 groups = default_groups;
958
959 if (len < sizeof(le16)) {
960 wpa_dbg(wpa_s, MSG_DEBUG,
961 "SME: Too short SAE anti-clogging token request");
962 return -1;
963 }
964 group = WPA_GET_LE16(data);
965 wpa_dbg(wpa_s, MSG_DEBUG,
966 "SME: SAE anti-clogging token requested (group %u)",
967 group);
968 if (sae_group_allowed(&wpa_s->sme.sae, groups, group) !=
969 WLAN_STATUS_SUCCESS) {
970 wpa_dbg(wpa_s, MSG_ERROR,
971 "SME: SAE group %u of anti-clogging request is invalid",
972 group);
973 return -1;
974 }
d136c376 975 wpabuf_free(wpa_s->sme.sae_token);
a959a3b6
MH		 976 wpa_s->sme.sae_token = wpabuf_alloc_copy(data + sizeof(le16),
977 len - sizeof(le16));
5ff39c13
SD		 978 if (!external)
979 sme_send_authentication(wpa_s, wpa_s->current_bss,
980 wpa_s->current_ssid, 1);
981 else
982 sme_external_auth_send_sae_commit(
983 wpa_s, wpa_s->sme.ext_auth.bssid,
984 wpa_s->current_ssid);
d136c376
JM		 985 return 0;
986 }
987
625f202a
JM		 988 if (auth_transaction == 1 &&
989 status_code == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
990 wpa_s->sme.sae.state == SAE_COMMITTED &&
5ff39c13 991 (external || wpa_s->current_bss) && wpa_s->current_ssid) {
625f202a
JM		 992 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE group not supported");
993 wpa_s->sme.sae_group_index++;
994 if (sme_set_sae_group(wpa_s) < 0)
995 return -1; /* no other groups enabled */
996 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Try next enabled SAE group");
5ff39c13
SD		 997 if (!external)
998 sme_send_authentication(wpa_s, wpa_s->current_bss,
999 wpa_s->current_ssid, 1);
1000 else
1001 sme_external_auth_send_sae_commit(
1002 wpa_s, wpa_s->sme.ext_auth.bssid,
1003 wpa_s->current_ssid);
625f202a
JM		 1004 return 0;
1005 }
1006
c10347f2
JM		 1007 if (status_code != WLAN_STATUS_SUCCESS)
1008 return -1;
1009
1010 if (auth_transaction == 1) {
6a58444d
JM		 1011 u16 res;
1012
a959a3b6 1013 groups = wpa_s->conf->sae_groups;
18ca7332 1014
c10347f2 1015 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE commit");
5ff39c13 1016 if ((!external && wpa_s->current_bss == NULL) ||
c10347f2
JM		 1017 wpa_s->current_ssid == NULL)
1018 return -1;
dd43026a 1019 if (wpa_s->sme.sae.state != SAE_COMMITTED)
21af6d15 1020 return -1;
18ca7332
JM		 1021 if (groups && groups[0] <= 0)
1022 groups = NULL;
6a58444d
JM		 1023 res = sae_parse_commit(&wpa_s->sme.sae, data, len, NULL, NULL,
1024 groups);
1025 if (res == SAE_SILENTLY_DISCARD) {
1026 wpa_printf(MSG_DEBUG,
1027 "SAE: Drop commit message due to reflection attack");
1028 return 0;
1029 }
1030 if (res != WLAN_STATUS_SUCCESS)
21af6d15 1031 return -1;
146f6c9a
JM		 1032
1033 if (sae_process_commit(&wpa_s->sme.sae) < 0) {
1034 wpa_printf(MSG_DEBUG, "SAE: Failed to process peer "
1035 "commit");
1036 return -1;
1037 }
1038
d136c376
JM		 1039 wpabuf_free(wpa_s->sme.sae_token);
1040 wpa_s->sme.sae_token = NULL;
5ff39c13
SD		 1041 if (!external)
1042 sme_send_authentication(wpa_s, wpa_s->current_bss,
1043 wpa_s->current_ssid, 0);
1044 else
1045 sme_external_auth_send_sae_confirm(wpa_s, sa);
c10347f2
JM		 1046 return 0;
1047 } else if (auth_transaction == 2) {
1048 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE confirm");
dd43026a 1049 if (wpa_s->sme.sae.state != SAE_CONFIRMED)
21af6d15 1050 return -1;
f2e9818f 1051 if (sae_check_confirm(&wpa_s->sme.sae, data, len) < 0)
21af6d15 1052 return -1;
dd43026a 1053 wpa_s->sme.sae.state = SAE_ACCEPTED;
b4fd3613 1054 sae_clear_temp_data(&wpa_s->sme.sae);
5ff39c13
SD		 1055
1056 if (external) {
1057 /* Report success to driver */
1058 sme_send_external_auth_status(wpa_s,
1059 WLAN_STATUS_SUCCESS);
1060 }
1061
c10347f2
JM		 1062 return 1;
1063 }
1064
1065 return -1;
1066}
5ff39c13
SD		 1067
1068
1069void sme_external_auth_mgmt_rx(struct wpa_supplicant *wpa_s,
1070 const u8 *auth_frame, size_t len)
1071{
1072 const struct ieee80211_mgmt *header;
1073 size_t auth_length;
1074
1075 header = (const struct ieee80211_mgmt *) auth_frame;
1076 auth_length = IEEE80211_HDRLEN + sizeof(header->u.auth);
1077
1078 if (len < auth_length) {
1079 /* Notify failure to the driver */
1080 sme_send_external_auth_status(wpa_s,
1081 WLAN_STATUS_UNSPECIFIED_FAILURE);
1082 return;
1083 }
1084
1085 if (header->u.auth.auth_alg == WLAN_AUTH_SAE) {
1086 int res;
1087
1088 res = sme_sae_auth(wpa_s, header->u.auth.auth_transaction,
1089 header->u.auth.status_code,
1090 header->u.auth.variable,
1091 len - auth_length, 1, header->sa);
1092 if (res < 0) {
1093 /* Notify failure to the driver */
1094 sme_send_external_auth_status(
1095 wpa_s, WLAN_STATUS_UNSPECIFIED_FAILURE);
1096 return;
1097 }
1098 if (res != 1)
1099 return;
1100
1101 wpa_printf(MSG_DEBUG,
1102 "SME: SAE completed - setting PMK for 4-way handshake");
1103 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
1104 wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
1105 }
1106}
1107
c10347f2
JM		 1108#endif /* CONFIG_SAE */
1109
1110
c2a04078
JM		 1111void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
1112{
c2a04078
JM		 1113 struct wpa_ssid *ssid = wpa_s->current_ssid;
1114
1115 if (ssid == NULL) {
f049052b
BG		 1116 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
1117 "when network is not selected");
c2a04078
JM		 1118 return;
1119 }
1120
1121 if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
f049052b
BG		 1122 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
1123 "when not in authenticating state");
c2a04078
JM		 1124 return;
1125 }
1126
1127 if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
f049052b
BG		 1128 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication with "
1129 "unexpected peer " MACSTR,
1130 MAC2STR(data->auth.peer));
c2a04078
JM		 1131 return;
1132 }
1133
f049052b 1134 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
c10347f2 1135 " auth_type=%d auth_transaction=%d status_code=%d",
f049052b 1136 MAC2STR(data->auth.peer), data->auth.auth_type,
c10347f2 1137 data->auth.auth_transaction, data->auth.status_code);
c2a04078
JM		 1138 wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
1139 data->auth.ies, data->auth.ies_len);
1140
e29853bb
BG		 1141 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1142
c10347f2
JM		 1143#ifdef CONFIG_SAE
1144 if (data->auth.auth_type == WLAN_AUTH_SAE) {
21af6d15
JM		 1145 int res;
1146 res = sme_sae_auth(wpa_s, data->auth.auth_transaction,
1147 data->auth.status_code, data->auth.ies,
5ff39c13 1148 data->auth.ies_len, 0, NULL);
21af6d15
JM		 1149 if (res < 0) {
1150 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1151 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1152
1153 }
1154 if (res != 1)
c10347f2 1155 return;
47b55a3e
JM		 1156
1157 wpa_printf(MSG_DEBUG, "SME: SAE completed - setting PMK for "
1158 "4-way handshake");
bc26ac50 1159 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
70c93963 1160 wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
c10347f2
JM		 1161 }
1162#endif /* CONFIG_SAE */
1163
c2a04078 1164 if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
ec4387f9
JM		 1165 char *ie_txt = NULL;
1166
1167 if (data->auth.ies && data->auth.ies_len) {
1168 size_t buflen = 2 * data->auth.ies_len + 1;
1169 ie_txt = os_malloc(buflen);
1170 if (ie_txt) {
1171 wpa_snprintf_hex(ie_txt, buflen, data->auth.ies,
1172 data->auth.ies_len);
1173 }
1174 }
1175 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AUTH_REJECT MACSTR
5f11880f 1176 " auth_type=%u auth_transaction=%u status_code=%u%s%s",
ec4387f9
JM		 1177 MAC2STR(data->auth.peer), data->auth.auth_type,
1178 data->auth.auth_transaction, data->auth.status_code,
5f11880f
JM		 1179 ie_txt ? " ie=" : "",
1180 ie_txt ? ie_txt : "");
ec4387f9 1181 os_free(ie_txt);
cb1583f6
SO		 1182
1183 if (data->auth.status_code !=
1184 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
1185 wpa_s->sme.auth_alg == data->auth.auth_type ||
7e6646c7 1186 wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
0fb337c1 1187 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
c1c02342 1188 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
cb1583f6 1189 return;
7e6646c7 1190 }
cb1583f6 1191
d9504779
JM		 1192 wpas_connect_work_done(wpa_s);
1193
cb1583f6
SO		 1194 switch (data->auth.auth_type) {
1195 case WLAN_AUTH_OPEN:
1196 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
1197
f049052b 1198 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying SHARED auth");
cb1583f6
SO		 1199 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
1200 wpa_s->current_ssid);
1201 return;
1202
1203 case WLAN_AUTH_SHARED_KEY:
1204 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_LEAP;
1205
f049052b 1206 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying LEAP auth");
cb1583f6
SO		 1207 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
1208 wpa_s->current_ssid);
1209 return;
1210
1211 default:
1212 return;
1213 }
c2a04078
JM		 1214 }
1215
1216#ifdef CONFIG_IEEE80211R
1217 if (data->auth.auth_type == WLAN_AUTH_FT) {
c6c41f6e
JM		 1218 const u8 *ric_ies = NULL;
1219 size_t ric_ies_len = 0;
1220
1221 if (wpa_s->ric_ies) {
1222 ric_ies = wpabuf_head(wpa_s->ric_ies);
1223 ric_ies_len = wpabuf_len(wpa_s->ric_ies);
1224 }
ee140ef9
JM		 1225 if (wpa_ft_process_response(wpa_s->wpa, data->auth.ies,
1226 data->auth.ies_len, 0,
c6c41f6e
JM		 1227 data->auth.peer,
1228 ric_ies, ric_ies_len) < 0) {
ee140ef9
JM		 1229 wpa_dbg(wpa_s, MSG_DEBUG,
1230 "SME: FT Authentication response processing failed");
1231 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1232 MACSTR
1233 " reason=%d locally_generated=1",
1234 MAC2STR(wpa_s->pending_bssid),
1235 WLAN_REASON_DEAUTH_LEAVING);
1236 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1237 wpa_supplicant_mark_disassoc(wpa_s);
1238 return;
1239 }
c2a04078
JM		 1240 }
1241#endif /* CONFIG_IEEE80211R */
1242
a6609937 1243#ifdef CONFIG_FILS
76e20f4f
JM		 1244 if (data->auth.auth_type == WLAN_AUTH_FILS_SK ||
1245 data->auth.auth_type == WLAN_AUTH_FILS_SK_PFS) {
1246 u16 expect_auth_type;
1247
1248 expect_auth_type = wpa_s->sme.auth_alg ==
1249 WPA_AUTH_ALG_FILS_SK_PFS ? WLAN_AUTH_FILS_SK_PFS :
1250 WLAN_AUTH_FILS_SK;
1251 if (data->auth.auth_type != expect_auth_type) {
1252 wpa_dbg(wpa_s, MSG_DEBUG,
1253 "SME: FILS Authentication response used different auth alg (%u; expected %u)",
1254 data->auth.auth_type, expect_auth_type);
1255 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1256 MACSTR
1257 " reason=%d locally_generated=1",
1258 MAC2STR(wpa_s->pending_bssid),
1259 WLAN_REASON_DEAUTH_LEAVING);
1260 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1261 wpa_supplicant_mark_disassoc(wpa_s);
1262 return;
1263 }
1264
ba9774bd
JM		 1265 if (fils_process_auth(wpa_s->wpa, wpa_s->pending_bssid,
1266 data->auth.ies, data->auth.ies_len) < 0) {
a6609937
JM		 1267 wpa_dbg(wpa_s, MSG_DEBUG,
1268 "SME: FILS Authentication response processing failed");
1269 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1270 MACSTR
1271 " reason=%d locally_generated=1",
1272 MAC2STR(wpa_s->pending_bssid),
1273 WLAN_REASON_DEAUTH_LEAVING);
1274 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1275 wpa_supplicant_mark_disassoc(wpa_s);
1276 return;
1277 }
1278 }
1279#endif /* CONFIG_FILS */
1280
71024cb2
JM		 1281 sme_associate(wpa_s, ssid->mode, data->auth.peer,
1282 data->auth.auth_type);
1283}
1284
1285
95818ec1 1286#ifdef CONFIG_FILS
7d440a3b
JM		 1287#ifdef CONFIG_IEEE80211R
1288static void remove_ie(u8 *buf, size_t *len, u8 eid)
1289{
1290 u8 *pos, *next, *end;
1291
1292 pos = (u8 *) get_ie(buf, *len, eid);
1293 if (pos) {
1294 next = pos + 2 + pos[1];
1295 end = buf + *len;
1296 *len -= 2 + pos[1];
1297 os_memmove(pos, next, end - next);
1298 }
1299}
1300#endif /* CONFIG_IEEE80211R */
95818ec1 1301#endif /* CONFIG_FILS */
7d440a3b
JM		 1302
1303
71024cb2
JM		 1304void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
1305 const u8 *bssid, u16 auth_type)
1306{
1307 struct wpa_driver_associate_params params;
d9a27b04 1308 struct ieee802_11_elems elems;
86cd6928
JM		 1309#ifdef CONFIG_FILS
1310 u8 nonces[2 * FILS_NONCE_LEN];
1311#endif /* CONFIG_FILS */
80e8a5ee
BG		 1312#ifdef CONFIG_HT_OVERRIDES
1313 struct ieee80211_ht_capabilities htcaps;
1314 struct ieee80211_ht_capabilities htcaps_mask;
1315#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1316#ifdef CONFIG_VHT_OVERRIDES
1317 struct ieee80211_vht_capabilities vhtcaps;
1318 struct ieee80211_vht_capabilities vhtcaps_mask;
1319#endif /* CONFIG_VHT_OVERRIDES */
71024cb2 1320
c2a04078 1321 os_memset(&params, 0, sizeof(params));
86cd6928
JM		 1322
1323#ifdef CONFIG_FILS
76e20f4f
JM		 1324 if (auth_type == WLAN_AUTH_FILS_SK ||
1325 auth_type == WLAN_AUTH_FILS_SK_PFS) {
86cd6928
JM		 1326 struct wpabuf *buf;
1327 const u8 *snonce, *anonce;
5732b770
JM		 1328 const unsigned int max_hlp = 20;
1329 struct wpabuf *hlp[max_hlp];
1330 unsigned int i, num_hlp = 0;
1331 struct fils_hlp_req *req;
1332
1333 dl_list_for_each(req, &wpa_s->fils_hlp_req, struct fils_hlp_req,
1334 list) {
1335 hlp[num_hlp] = wpabuf_alloc(2 * ETH_ALEN + 6 +
1336 wpabuf_len(req->pkt));
1337 if (!hlp[num_hlp])
1338 break;
1339 wpabuf_put_data(hlp[num_hlp], req->dst, ETH_ALEN);
1340 wpabuf_put_data(hlp[num_hlp], wpa_s->own_addr,
1341 ETH_ALEN);
1342 wpabuf_put_data(hlp[num_hlp],
1343 "\xaa\xaa\x03\x00\x00\x00", 6);
1344 wpabuf_put_buf(hlp[num_hlp], req->pkt);
1345 num_hlp++;
1346 if (num_hlp >= max_hlp)
1347 break;
1348 }
86cd6928
JM		 1349
1350 buf = fils_build_assoc_req(wpa_s->wpa, &params.fils_kek,
1351 &params.fils_kek_len, &snonce,
5732b770
JM		 1352 &anonce,
1353 (const struct wpabuf **) hlp,
1354 num_hlp);
1355 for (i = 0; i < num_hlp; i++)
1356 wpabuf_free(hlp[i]);
86cd6928
JM		 1357 if (!buf)
1358 return;
7d440a3b
JM		 1359 wpa_hexdump(MSG_DEBUG, "FILS: assoc_req before FILS elements",
1360 wpa_s->sme.assoc_req_ie,
1361 wpa_s->sme.assoc_req_ie_len);
1362#ifdef CONFIG_IEEE80211R
1363 if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
1364 /* Remove RSNE and MDE to allow them to be overridden
1365 * with FILS+FT specific values from
1366 * fils_build_assoc_req(). */
1367 remove_ie(wpa_s->sme.assoc_req_ie,
1368 &wpa_s->sme.assoc_req_ie_len,
1369 WLAN_EID_RSN);
1370 wpa_hexdump(MSG_DEBUG,
1371 "FILS: assoc_req after RSNE removal",
1372 wpa_s->sme.assoc_req_ie,
1373 wpa_s->sme.assoc_req_ie_len);
1374 remove_ie(wpa_s->sme.assoc_req_ie,
1375 &wpa_s->sme.assoc_req_ie_len,
1376 WLAN_EID_MOBILITY_DOMAIN);
1377 wpa_hexdump(MSG_DEBUG,
1378 "FILS: assoc_req after MDE removal",
1379 wpa_s->sme.assoc_req_ie,
1380 wpa_s->sme.assoc_req_ie_len);
1381 }
1382#endif /* CONFIG_IEEE80211R */
86cd6928
JM		 1383 /* TODO: Make wpa_s->sme.assoc_req_ie use dynamic allocation */
1384 if (wpa_s->sme.assoc_req_ie_len + wpabuf_len(buf) >
1385 sizeof(wpa_s->sme.assoc_req_ie)) {
1386 wpa_printf(MSG_ERROR,
1387 "FILS: Not enough buffer room for own AssocReq elements");
1388 wpabuf_free(buf);
1389 return;
1390 }
1391 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1392 wpabuf_head(buf), wpabuf_len(buf));
1393 wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf);
1394 wpabuf_free(buf);
7d440a3b
JM		 1395 wpa_hexdump(MSG_DEBUG, "FILS: assoc_req after FILS elements",
1396 wpa_s->sme.assoc_req_ie,
1397 wpa_s->sme.assoc_req_ie_len);
86cd6928
JM		 1398
1399 os_memcpy(nonces, snonce, FILS_NONCE_LEN);
1400 os_memcpy(nonces + FILS_NONCE_LEN, anonce, FILS_NONCE_LEN);
1401 params.fils_nonces = nonces;
1402 params.fils_nonces_len = sizeof(nonces);
1403 }
1404#endif /* CONFIG_FILS */
1405
0a614799 1406#ifdef CONFIG_OWE
265bda34
JM		 1407#ifdef CONFIG_TESTING_OPTIONS
1408 if (get_ie_ext(wpa_s->sme.assoc_req_ie, wpa_s->sme.assoc_req_ie_len,
1409 WLAN_EID_EXT_OWE_DH_PARAM)) {
1410 wpa_printf(MSG_INFO, "TESTING: Override OWE DH element");
1411 } else
1412#endif /* CONFIG_TESTING_OPTIONS */
0a614799
JM		 1413 if (auth_type == WLAN_AUTH_OPEN &&
1414 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE) {
1415 struct wpabuf *owe_ie;
2cb40e9f 1416 u16 group;
0a614799 1417
2cb40e9f 1418 if (wpa_s->current_ssid && wpa_s->current_ssid->owe_group) {
ec9f4837 1419 group = wpa_s->current_ssid->owe_group;
2cb40e9f
JM		 1420 } else {
1421 if (wpa_s->last_owe_group == 19)
1422 group = 20;
1423 else if (wpa_s->last_owe_group == 20)
1424 group = 21;
1425 else
1426 group = OWE_DH_GROUP;
1427 }
1428 wpa_s->last_owe_group = group;
1429 wpa_printf(MSG_DEBUG, "OWE: Try to use group %u", group);
ec9f4837 1430 owe_ie = owe_build_assoc_req(wpa_s->wpa, group);
0a614799
JM		 1431 if (!owe_ie) {
1432 wpa_printf(MSG_ERROR,
1433 "OWE: Failed to build IE for Association Request frame");
1434 return;
1435 }
1436 if (wpa_s->sme.assoc_req_ie_len + wpabuf_len(owe_ie) >
1437 sizeof(wpa_s->sme.assoc_req_ie)) {
1438 wpa_printf(MSG_ERROR,
1439 "OWE: Not enough buffer room for own Association Request frame elements");
1440 wpabuf_free(owe_ie);
1441 return;
1442 }
1443 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1444 wpabuf_head(owe_ie), wpabuf_len(owe_ie));
1445 wpa_s->sme.assoc_req_ie_len += wpabuf_len(owe_ie);
1446 wpabuf_free(owe_ie);
1447 }
1448#endif /* CONFIG_OWE */
1449
71024cb2 1450 params.bssid = bssid;
c2a04078
JM		 1451 params.ssid = wpa_s->sme.ssid;
1452 params.ssid_len = wpa_s->sme.ssid_len;
4ec68377 1453 params.freq.freq = wpa_s->sme.freq;
1f6c0ab8
BS		 1454 params.bg_scan_period = wpa_s->current_ssid ?
1455 wpa_s->current_ssid->bg_scan_period : -1;
c2a04078
JM		 1456 params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
1457 wpa_s->sme.assoc_req_ie : NULL;
1458 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
4848a38d
JM		 1459 params.pairwise_suite = wpa_s->pairwise_cipher;
1460 params.group_suite = wpa_s->group_cipher;
61a56c14 1461 params.mgmt_group_suite = wpa_s->mgmt_group_cipher;
163f801e
JM		 1462 params.key_mgmt_suite = wpa_s->key_mgmt;
1463 params.wpa_proto = wpa_s->wpa_proto;
80e8a5ee
BG		 1464#ifdef CONFIG_HT_OVERRIDES
1465 os_memset(&htcaps, 0, sizeof(htcaps));
1466 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
1467 params.htcaps = (u8 *) &htcaps;
1468 params.htcaps_mask = (u8 *) &htcaps_mask;
1469 wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, &params);
1470#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1471#ifdef CONFIG_VHT_OVERRIDES
1472 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
1473 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
1474 params.vhtcaps = &vhtcaps;
1475 params.vhtcaps_mask = &vhtcaps_mask;
1476 wpa_supplicant_apply_vht_overrides(wpa_s, wpa_s->current_ssid, &params);
1477#endif /* CONFIG_VHT_OVERRIDES */
c2a04078 1478#ifdef CONFIG_IEEE80211R
71024cb2 1479 if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
c2a04078
JM		 1480 params.wpa_ie = wpa_s->sme.ft_ies;
1481 params.wpa_ie_len = wpa_s->sme.ft_ies_len;
1482 }
1483#endif /* CONFIG_IEEE80211R */
71024cb2 1484 params.mode = mode;
c2a04078 1485 params.mgmt_frame_protection = wpa_s->sme.mfp;
b361d580 1486 params.rrm_used = wpa_s->rrm.rrm_used;
62fa124c
JM		 1487 if (wpa_s->sme.prev_bssid_set)
1488 params.prev_bssid = wpa_s->sme.prev_bssid;
c2a04078
JM		 1489
1490 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
1491 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
1492 params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
4ec68377 1493 params.freq.freq);
c2a04078
JM		 1494
1495 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
1496
9efc3f2a
JM		 1497 if (params.wpa_ie == NULL ||
1498 ieee802_11_parse_elems(params.wpa_ie, params.wpa_ie_len, &elems, 0)
d9a27b04 1499 < 0) {
f049052b 1500 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Could not parse own IEs?!");
d9a27b04
JM		 1501 os_memset(&elems, 0, sizeof(elems));
1502 }
64fa840a
JM		 1503 if (elems.rsn_ie) {
1504 params.wpa_proto = WPA_PROTO_RSN;
d9a27b04
JM		 1505 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.rsn_ie - 2,
1506 elems.rsn_ie_len + 2);
64fa840a
JM		 1507 } else if (elems.wpa_ie) {
1508 params.wpa_proto = WPA_PROTO_WPA;
d9a27b04
JM		 1509 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
1510 elems.wpa_ie_len + 2);
df0f01d9
JM		 1511 } else if (elems.osen) {
1512 params.wpa_proto = WPA_PROTO_OSEN;
1513 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.osen - 2,
1514 elems.osen_len + 2);
64fa840a 1515 } else
d9a27b04 1516 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
ffad8858 1517 if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
6e3f4b89 1518 params.p2p = 1;
d9a27b04 1519
ba307f85
LD		 1520 if (wpa_s->p2pdev->set_sta_uapsd)
1521 params.uapsd = wpa_s->p2pdev->sta_uapsd;
eea2fd9e
JM		 1522 else
1523 params.uapsd = -1;
1524
c2a04078 1525 if (wpa_drv_associate(wpa_s, &params) < 0) {
f049052b
BG		 1526 wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
1527 "driver failed");
e5ad96b7 1528 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
c1c02342 1529 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
e5ad96b7 1530 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
c2a04078
JM		 1531 return;
1532 }
1533
e29853bb
BG		 1534 eloop_register_timeout(SME_ASSOC_TIMEOUT, 0, sme_assoc_timer, wpa_s,
1535 NULL);
daa40960
JM		 1536
1537#ifdef CONFIG_TESTING_OPTIONS
1538 wpabuf_free(wpa_s->last_assoc_req_wpa_ie);
1539 wpa_s->last_assoc_req_wpa_ie = NULL;
1540 if (params.wpa_ie)
1541 wpa_s->last_assoc_req_wpa_ie =
1542 wpabuf_alloc_copy(params.wpa_ie, params.wpa_ie_len);
1543#endif /* CONFIG_TESTING_OPTIONS */
c2a04078
JM		 1544}
1545
1546
1547int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
1548 const u8 *ies, size_t ies_len)
1549{
1550 if (md == NULL || ies == NULL) {
f049052b 1551 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Remove mobility domain");
c2a04078
JM		 1552 os_free(wpa_s->sme.ft_ies);
1553 wpa_s->sme.ft_ies = NULL;
1554 wpa_s->sme.ft_ies_len = 0;
1555 wpa_s->sme.ft_used = 0;
1556 return 0;
1557 }
1558
1559 os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
1560 wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
1561 os_free(wpa_s->sme.ft_ies);
a1f11e34 1562 wpa_s->sme.ft_ies = os_memdup(ies, ies_len);
c2a04078
JM		 1563 if (wpa_s->sme.ft_ies == NULL)
1564 return -1;
c2a04078
JM		 1565 wpa_s->sme.ft_ies_len = ies_len;
1566 return 0;
1567}
efa46078
JM		 1568
1569
e29853bb 1570static void sme_deauth(struct wpa_supplicant *wpa_s)
efa46078 1571{
8bac466b
JM		 1572 int bssid_changed;
1573
8bac466b 1574 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
76d11d3f 1575
76d11d3f
JM		 1576 if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
1577 WLAN_REASON_DEAUTH_LEAVING) < 0) {
f049052b
BG		 1578 wpa_msg(wpa_s, MSG_INFO, "SME: Deauth request to the driver "
1579 "failed");
76d11d3f 1580 }
62fa124c 1581 wpa_s->sme.prev_bssid_set = 0;
76d11d3f 1582
0fb337c1 1583 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
76d11d3f 1584 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
efa46078
JM		 1585 os_memset(wpa_s->bssid, 0, ETH_ALEN);
1586 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
8bac466b
JM		 1587 if (bssid_changed)
1588 wpas_notify_bssid_changed(wpa_s);
efa46078 1589}
da1fb17c
JM		 1590
1591
e29853bb
BG		 1592void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
1593 union wpa_event_data *data)
1594{
1595 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association with " MACSTR " failed: "
1596 "status code %d", MAC2STR(wpa_s->pending_bssid),
1597 data->assoc_reject.status_code);
1598
1599 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1600
bc26ac50
JM		 1601#ifdef CONFIG_SAE
1602 if (wpa_s->sme.sae_pmksa_caching && wpa_s->current_ssid &&
1603 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt)) {
1604 wpa_dbg(wpa_s, MSG_DEBUG,
1605 "PMKSA caching attempt rejected - drop PMKSA cache entry and fall back to SAE authentication");
1606 wpa_sm_aborted_cached(wpa_s->wpa);
1607 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
1608 if (wpa_s->current_bss) {
1609 struct wpa_bss *bss = wpa_s->current_bss;
1610 struct wpa_ssid *ssid = wpa_s->current_ssid;
1611
1612 wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
1613 WLAN_REASON_DEAUTH_LEAVING);
1614 wpas_connect_work_done(wpa_s);
1615 wpa_supplicant_mark_disassoc(wpa_s);
1616 wpa_supplicant_connect(wpa_s, bss, ssid);
1617 return;
1618 }
1619 }
1620#endif /* CONFIG_SAE */
1621
e29853bb
BG		 1622 /*
1623 * For now, unconditionally terminate the previous authentication. In
1624 * theory, this should not be needed, but mac80211 gets quite confused
1625 * if the authentication is left pending.. Some roaming cases might
1626 * benefit from using the previous authentication, so this could be
1627 * optimized in the future.
1628 */
1629 sme_deauth(wpa_s);
1630}
1631
1632
da1fb17c
JM		 1633void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
1634 union wpa_event_data *data)
1635{
f049052b 1636 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication timed out");
0fb337c1 1637 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1193dc8f 1638 wpa_supplicant_mark_disassoc(wpa_s);
da1fb17c
JM		 1639}
1640
1641
1642void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
1643 union wpa_event_data *data)
1644{
f049052b 1645 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association timed out");
0fb337c1 1646 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
da1fb17c 1647 wpa_supplicant_mark_disassoc(wpa_s);
da1fb17c 1648}
a84ed99e
JM		 1649
1650
1651void sme_event_disassoc(struct wpa_supplicant *wpa_s,
d7df0fa7 1652 struct disassoc_info *info)
a84ed99e 1653{
f049052b 1654 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
17fbb751 1655 if (wpa_s->sme.prev_bssid_set) {
a84ed99e
JM		 1656 /*
1657 * cfg80211/mac80211 can get into somewhat confused state if
1658 * the AP only disassociates us and leaves us in authenticated
1659 * state. For now, force the state to be cleared to avoid
1660 * confusing errors if we try to associate with the AP again.
1661 */
f049052b
BG		 1662 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Deauthenticate to clear "
1663 "driver state");
7e26053a 1664 wpa_drv_deauthenticate(wpa_s, wpa_s->sme.prev_bssid,
a84ed99e
JM		 1665 WLAN_REASON_DEAUTH_LEAVING);
1666 }
1667}
7d878ca7
JM		 1668
1669
e29853bb
BG		 1670static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx)
1671{
1672 struct wpa_supplicant *wpa_s = eloop_ctx;
1673 if (wpa_s->wpa_state == WPA_AUTHENTICATING) {
1674 wpa_msg(wpa_s, MSG_DEBUG, "SME: Authentication timeout");
1675 sme_deauth(wpa_s);
1676 }
1677}
1678
1679
1680static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx)
1681{
1682 struct wpa_supplicant *wpa_s = eloop_ctx;
1683 if (wpa_s->wpa_state == WPA_ASSOCIATING) {
1684 wpa_msg(wpa_s, MSG_DEBUG, "SME: Association timeout");
1685 sme_deauth(wpa_s);
1686 }
1687}
1688
1689
1690void sme_state_changed(struct wpa_supplicant *wpa_s)
1691{
1692 /* Make sure timers are cleaned up appropriately. */
1693 if (wpa_s->wpa_state != WPA_ASSOCIATING)
1694 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1695 if (wpa_s->wpa_state != WPA_AUTHENTICATING)
1696 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1697}
1698
1699
1700void sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
1701 const u8 *prev_pending_bssid)
1702{
1703 /*
1704 * mac80211-workaround to force deauth on failed auth cmd,
1705 * requires us to remain in authenticating state to allow the
1706 * second authentication attempt to be continued properly.
1707 */
1708 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Allow pending authentication "
1709 "to proceed after disconnection event");
1710 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
1711 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
1712
1713 /*
1714 * Re-arm authentication timer in case auth fails for whatever reason.
1715 */
1716 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1717 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
1718 NULL);
1719}
1720
1721
4e70bbf1
JM		 1722void sme_clear_on_disassoc(struct wpa_supplicant *wpa_s)
1723{
1724 wpa_s->sme.prev_bssid_set = 0;
1725#ifdef CONFIG_SAE
1726 wpabuf_free(wpa_s->sme.sae_token);
1727 wpa_s->sme.sae_token = NULL;
1728 sae_clear_data(&wpa_s->sme.sae);
1729#endif /* CONFIG_SAE */
1730#ifdef CONFIG_IEEE80211R
1731 if (wpa_s->sme.ft_ies)
1732 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
1733#endif /* CONFIG_IEEE80211R */
1734}
1735
1736
e29853bb
BG		 1737void sme_deinit(struct wpa_supplicant *wpa_s)
1738{
1739 os_free(wpa_s->sme.ft_ies);
1740 wpa_s->sme.ft_ies = NULL;
1741 wpa_s->sme.ft_ies_len = 0;
1742#ifdef CONFIG_IEEE80211W
1743 sme_stop_sa_query(wpa_s);
1744#endif /* CONFIG_IEEE80211W */
4e70bbf1 1745 sme_clear_on_disassoc(wpa_s);
e29853bb
BG		 1746
1747 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1748 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
c3701c66
RM		 1749 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
1750}
1751
1752
1753static void sme_send_2040_bss_coex(struct wpa_supplicant *wpa_s,
1754 const u8 *chan_list, u8 num_channels,
1755 u8 num_intol)
1756{
1757 struct ieee80211_2040_bss_coex_ie *bc_ie;
1758 struct ieee80211_2040_intol_chan_report *ic_report;
1759 struct wpabuf *buf;
1760
31ded52e
JM		 1761 wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR
1762 " (num_channels=%u num_intol=%u)",
1763 MAC2STR(wpa_s->bssid), num_channels, num_intol);
1764 wpa_hexdump(MSG_DEBUG, "SME: 20/40 BSS Intolerant Channels",
1765 chan_list, num_channels);
c3701c66
RM		 1766
1767 buf = wpabuf_alloc(2 + /* action.category + action_code */
1768 sizeof(struct ieee80211_2040_bss_coex_ie) +
1769 sizeof(struct ieee80211_2040_intol_chan_report) +
1770 num_channels);
1771 if (buf == NULL)
1772 return;
1773
1774 wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
1775 wpabuf_put_u8(buf, WLAN_PA_20_40_BSS_COEX);
1776
1777 bc_ie = wpabuf_put(buf, sizeof(*bc_ie));
1778 bc_ie->element_id = WLAN_EID_20_40_BSS_COEXISTENCE;
1779 bc_ie->length = 1;
1780 if (num_intol)
1781 bc_ie->coex_param |= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ;
1782
1783 if (num_channels > 0) {
1784 ic_report = wpabuf_put(buf, sizeof(*ic_report));
1785 ic_report->element_id = WLAN_EID_20_40_BSS_INTOLERANT;
1786 ic_report->length = num_channels + 1;
1787 ic_report->op_class = 0;
1788 os_memcpy(wpabuf_put(buf, num_channels), chan_list,
1789 num_channels);
1790 }
1791
1792 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
1793 wpa_s->own_addr, wpa_s->bssid,
1794 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
1795 wpa_msg(wpa_s, MSG_INFO,
1796 "SME: Failed to send 20/40 BSS Coexistence frame");
1797 }
1798
1799 wpabuf_free(buf);
1800}
1801
1802
c3701c66
RM		 1803int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
1804{
1805 struct wpa_bss *bss;
1806 const u8 *ie;
1807 u16 ht_cap;
1808 u8 chan_list[P2P_MAX_CHANNELS], channel;
1809 u8 num_channels = 0, num_intol = 0, i;
1810
1811 if (!wpa_s->sme.sched_obss_scan)
1812 return 0;
1813
1814 wpa_s->sme.sched_obss_scan = 0;
1815 if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
1816 return 1;
1817
1818 /*
1819 * Check whether AP uses regulatory triplet or channel triplet in
1820 * country info. Right now the operating class of the BSS channel
1821 * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
1822 * based on the assumption that operating class triplet is not used in
1823 * beacon frame. If the First Channel Number/Operating Extension
1824 * Identifier octet has a positive integer value of 201 or greater,
1825 * then its operating class triplet.
1826 *
1827 * TODO: If Supported Operating Classes element is present in beacon
1828 * frame, have to lookup operating class in Annex E and fill them in
1829 * 2040 coex frame.
1830 */
1831 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
1832 if (ie && (ie[1] >= 6) && (ie[5] >= 201))
1833 return 1;
1834
1835 os_memset(chan_list, 0, sizeof(chan_list));
1836
1837 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1838 /* Skip other band bss */
e864c0ae
JM		 1839 enum hostapd_hw_mode mode;
1840 mode = ieee80211_freq_to_chan(bss->freq, &channel);
1841 if (mode != HOSTAPD_MODE_IEEE80211G &&
1842 mode != HOSTAPD_MODE_IEEE80211B)
c3701c66
RM		 1843 continue;
1844
1845 ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
1846 ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
31ded52e
JM		 1847 wpa_printf(MSG_DEBUG, "SME OBSS scan BSS " MACSTR
1848 " freq=%u chan=%u ht_cap=0x%x",
1849 MAC2STR(bss->bssid), bss->freq, channel, ht_cap);
c3701c66
RM		 1850
1851 if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
7f8eb34d
JM		 1852 if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
1853 num_intol++;
1854
c3701c66
RM		 1855 /* Check whether the channel is already considered */
1856 for (i = 0; i < num_channels; i++) {
1857 if (channel == chan_list[i])
1858 break;
1859 }
1860 if (i != num_channels)
1861 continue;
1862
c3701c66
RM		 1863 chan_list[num_channels++] = channel;
1864 }
1865 }
1866
1867 sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
1868 return 1;
1869}
1870
1871
d97a3c48
JM		 1872static void wpa_obss_scan_freqs_list(struct wpa_supplicant *wpa_s,
1873 struct wpa_driver_scan_params *params)
6434ad09 1874{
d97a3c48 1875 /* Include only affected channels */
6434ad09
JM		 1876 struct hostapd_hw_modes *mode;
1877 int count, i;
d97a3c48 1878 int start, end;
6434ad09 1879
d97a3c48
JM		 1880 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
1881 HOSTAPD_MODE_IEEE80211G);
6434ad09
JM		 1882 if (mode == NULL) {
1883 /* No channels supported in this band - use empty list */
1884 params->freqs = os_zalloc(sizeof(int));
1885 return;
1886 }
1887
d97a3c48
JM		 1888 if (wpa_s->sme.ht_sec_chan == HT_SEC_CHAN_UNKNOWN &&
1889 wpa_s->current_bss) {
1890 const u8 *ie;
1891
1892 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_OPERATION);
1893 if (ie && ie[1] >= 2) {
1894 u8 o;
1895
1896 o = ie[3] & HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK;
1897 if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
1898 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
1899 else if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
1900 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
1901 }
1902 }
1903
1904 start = wpa_s->assoc_freq - 10;
1905 end = wpa_s->assoc_freq + 10;
1906 switch (wpa_s->sme.ht_sec_chan) {
1907 case HT_SEC_CHAN_UNKNOWN:
1908 /* HT40+ possible on channels 1..9 */
1909 if (wpa_s->assoc_freq <= 2452)
1910 start -= 20;
1911 /* HT40- possible on channels 5-13 */
1912 if (wpa_s->assoc_freq >= 2432)
1913 end += 20;
1914 break;
1915 case HT_SEC_CHAN_ABOVE:
1916 end += 20;
1917 break;
1918 case HT_SEC_CHAN_BELOW:
1919 start -= 20;
1920 break;
1921 }
1922 wpa_printf(MSG_DEBUG,
1923 "OBSS: assoc_freq %d possible affected range %d-%d",
1924 wpa_s->assoc_freq, start, end);
1925
f9884c09 1926 params->freqs = os_calloc(mode->num_channels + 1, sizeof(int));
6434ad09
JM		 1927 if (params->freqs == NULL)
1928 return;
1929 for (count = 0, i = 0; i < mode->num_channels; i++) {
d97a3c48
JM		 1930 int freq;
1931
6434ad09
JM		 1932 if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
1933 continue;
d97a3c48
JM		 1934 freq = mode->channels[i].freq;
1935 if (freq - 10 >= end || freq + 10 <= start)
1936 continue; /* not affected */
1937 params->freqs[count++] = freq;
6434ad09
JM		 1938 }
1939}
1940
1941
c3701c66
RM		 1942static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1943{
1944 struct wpa_supplicant *wpa_s = eloop_ctx;
1945 struct wpa_driver_scan_params params;
1946
1947 if (!wpa_s->current_bss) {
1948 wpa_printf(MSG_DEBUG, "SME OBSS: Ignore scan request");
1949 return;
1950 }
1951
1952 os_memset(&params, 0, sizeof(params));
d97a3c48 1953 wpa_obss_scan_freqs_list(wpa_s, &params);
57a8f8af 1954 params.low_priority = 1;
c3701c66
RM		 1955 wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
1956
1957 if (wpa_supplicant_trigger_scan(wpa_s, &params))
1958 wpa_printf(MSG_DEBUG, "SME OBSS: Failed to trigger scan");
1959 else
1960 wpa_s->sme.sched_obss_scan = 1;
6434ad09 1961 os_free(params.freqs);
c3701c66
RM		 1962
1963 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
1964 sme_obss_scan_timeout, wpa_s, NULL);
1965}
1966
1967
1968void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable)
1969{
1970 const u8 *ie;
1971 struct wpa_bss *bss = wpa_s->current_bss;
1972 struct wpa_ssid *ssid = wpa_s->current_ssid;
b6871ebb
AN		 1973 struct hostapd_hw_modes *hw_mode = NULL;
1974 int i;
c3701c66
RM		 1975
1976 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
1977 wpa_s->sme.sched_obss_scan = 0;
d97a3c48 1978 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
c3701c66
RM		 1979 if (!enable)
1980 return;
1981
368b1957
AK		 1982 /*
1983 * Schedule OBSS scan if driver is using station SME in wpa_supplicant
1984 * or it expects OBSS scan to be performed by wpa_supplicant.
1985 */
1986 if (!((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
1987 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OBSS_SCAN)) ||
1988 ssid == NULL || ssid->mode != IEEE80211_MODE_INFRA)
1989 return;
c3701c66 1990
b6871ebb
AN		 1991 if (!wpa_s->hw.modes)
1992 return;
1993
1994 /* only HT caps in 11g mode are relevant */
1995 for (i = 0; i < wpa_s->hw.num_modes; i++) {
1996 hw_mode = &wpa_s->hw.modes[i];
1997 if (hw_mode->mode == HOSTAPD_MODE_IEEE80211G)
1998 break;
1999 }
2000
2001 /* Driver does not support HT40 for 11g or doesn't have 11g. */
2002 if (i == wpa_s->hw.num_modes || !hw_mode ||
2003 !(hw_mode->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
2004 return;
c3701c66
RM		 2005
2006 if (bss == NULL || bss->freq < 2400 || bss->freq > 2500)
2007 return; /* Not associated on 2.4 GHz band */
2008
2009 /* Check whether AP supports HT40 */
2010 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_CAP);
2011 if (!ie || ie[1] < 2 ||
2012 !(WPA_GET_LE16(ie + 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
2013 return; /* AP does not support HT40 */
2014
2015 ie = wpa_bss_get_ie(wpa_s->current_bss,
2016 WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS);
2017 if (!ie || ie[1] < 14)
2018 return; /* AP does not request OBSS scans */
2019
2020 wpa_s->sme.obss_scan_int = WPA_GET_LE16(ie + 6);
2021 if (wpa_s->sme.obss_scan_int < 10) {
2022 wpa_printf(MSG_DEBUG, "SME: Invalid OBSS Scan Interval %u "
2023 "replaced with the minimum 10 sec",
2024 wpa_s->sme.obss_scan_int);
2025 wpa_s->sme.obss_scan_int = 10;
2026 }
2027 wpa_printf(MSG_DEBUG, "SME: OBSS Scan Interval %u sec",
2028 wpa_s->sme.obss_scan_int);
2029 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
2030 sme_obss_scan_timeout, wpa_s, NULL);
e29853bb
BG		 2031}
2032
2033
7d878ca7
JM		 2034#ifdef CONFIG_IEEE80211W
2035
2036static const unsigned int sa_query_max_timeout = 1000;
2037static const unsigned int sa_query_retry_timeout = 201;
2038
2039static int sme_check_sa_query_timeout(struct wpa_supplicant *wpa_s)
2040{
2041 u32 tu;
46b8d4c0
JB		 2042 struct os_reltime now, passed;
2043 os_get_reltime(&now);
2044 os_reltime_sub(&now, &wpa_s->sme.sa_query_start, &passed);
7d878ca7
JM		 2045 tu = (passed.sec * 1000000 + passed.usec) / 1024;
2046 if (sa_query_max_timeout < tu) {
f049052b 2047 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SA Query timed out");
7d878ca7
JM		 2048 sme_stop_sa_query(wpa_s);
2049 wpa_supplicant_deauthenticate(
2050 wpa_s, WLAN_REASON_PREV_AUTH_NOT_VALID);
2051 return 1;
2052 }
2053
2054 return 0;
2055}
2056
2057
2058static void sme_send_sa_query_req(struct wpa_supplicant *wpa_s,
2059 const u8 *trans_id)
2060{
2061 u8 req[2 + WLAN_SA_QUERY_TR_ID_LEN];
f049052b
BG		 2062 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Request to "
2063 MACSTR, MAC2STR(wpa_s->bssid));
7d878ca7
JM		 2064 wpa_hexdump(MSG_DEBUG, "SME: SA Query Transaction ID",
2065 trans_id, WLAN_SA_QUERY_TR_ID_LEN);
2066 req[0] = WLAN_ACTION_SA_QUERY;
2067 req[1] = WLAN_SA_QUERY_REQUEST;
2068 os_memcpy(req + 2, trans_id, WLAN_SA_QUERY_TR_ID_LEN);
190b9062 2069 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
7d878ca7 2070 wpa_s->own_addr, wpa_s->bssid,
b106173a 2071 req, sizeof(req), 0) < 0)
f049052b
BG		 2072 wpa_msg(wpa_s, MSG_INFO, "SME: Failed to send SA Query "
2073 "Request");
7d878ca7
JM		 2074}
2075
2076
2077static void sme_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
2078{
2079 struct wpa_supplicant *wpa_s = eloop_ctx;
2080 unsigned int timeout, sec, usec;
2081 u8 *trans_id, *nbuf;
2082
2083 if (wpa_s->sme.sa_query_count > 0 &&
2084 sme_check_sa_query_timeout(wpa_s))
2085 return;
2086
067ffa26
JM		 2087 nbuf = os_realloc_array(wpa_s->sme.sa_query_trans_id,
2088 wpa_s->sme.sa_query_count + 1,
2089 WLAN_SA_QUERY_TR_ID_LEN);
f8608fab
JM		 2090 if (nbuf == NULL) {
2091 sme_stop_sa_query(wpa_s);
7d878ca7 2092 return;
f8608fab 2093 }
7d878ca7
JM		 2094 if (wpa_s->sme.sa_query_count == 0) {
2095 /* Starting a new SA Query procedure */
46b8d4c0 2096 os_get_reltime(&wpa_s->sme.sa_query_start);
7d878ca7
JM		 2097 }
2098 trans_id = nbuf + wpa_s->sme.sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
2099 wpa_s->sme.sa_query_trans_id = nbuf;
2100 wpa_s->sme.sa_query_count++;
2101
cb5ef952
JM		 2102 if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
2103 wpa_printf(MSG_DEBUG, "Could not generate SA Query ID");
f8608fab 2104 sme_stop_sa_query(wpa_s);
cb5ef952
JM		 2105 return;
2106 }
7d878ca7
JM		 2107
2108 timeout = sa_query_retry_timeout;
2109 sec = ((timeout / 1000) * 1024) / 1000;
2110 usec = (timeout % 1000) * 1024;
2111 eloop_register_timeout(sec, usec, sme_sa_query_timer, wpa_s, NULL);
2112
f049052b
BG		 2113 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association SA Query attempt %d",
2114 wpa_s->sme.sa_query_count);
7d878ca7
JM		 2115
2116 sme_send_sa_query_req(wpa_s, trans_id);
2117}
2118
2119
2120static void sme_start_sa_query(struct wpa_supplicant *wpa_s)
2121{
2122 sme_sa_query_timer(wpa_s, NULL);
2123}
2124
2125
19df9b07 2126static void sme_stop_sa_query(struct wpa_supplicant *wpa_s)
7d878ca7
JM		 2127{
2128 eloop_cancel_timeout(sme_sa_query_timer, wpa_s, NULL);
2129 os_free(wpa_s->sme.sa_query_trans_id);
2130 wpa_s->sme.sa_query_trans_id = NULL;
2131 wpa_s->sme.sa_query_count = 0;
2132}
2133
2134
2135void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
2136 const u8 *da, u16 reason_code)
2137{
2138 struct wpa_ssid *ssid;
3302b7c2 2139 struct os_reltime now;
7d878ca7 2140
7d878ca7
JM		 2141 if (wpa_s->wpa_state != WPA_COMPLETED)
2142 return;
2143 ssid = wpa_s->current_ssid;
3f56a2b7 2144 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION)
7d878ca7
JM		 2145 return;
2146 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
2147 return;
2148 if (reason_code != WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA &&
2149 reason_code != WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA)
2150 return;
2151 if (wpa_s->sme.sa_query_count > 0)
2152 return;
2153
3302b7c2
JM		 2154 os_get_reltime(&now);
2155 if (wpa_s->sme.last_unprot_disconnect.sec &&
2156 !os_reltime_expired(&now, &wpa_s->sme.last_unprot_disconnect, 10))
2157 return; /* limit SA Query procedure frequency */
2158 wpa_s->sme.last_unprot_disconnect = now;
2159
f049052b
BG		 2160 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Unprotected disconnect dropped - "
2161 "possible AP/STA state mismatch - trigger SA Query");
7d878ca7
JM		 2162 sme_start_sa_query(wpa_s);
2163}
2164
2165
2166void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
2167 const u8 *data, size_t len)
2168{
2169 int i;
2170
2171 if (wpa_s->sme.sa_query_trans_id == NULL ||
2172 len < 1 + WLAN_SA_QUERY_TR_ID_LEN ||
2173 data[0] != WLAN_SA_QUERY_RESPONSE)
2174 return;
f049052b
BG		 2175 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query response from "
2176 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
7d878ca7
JM		 2177
2178 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
2179 return;
2180
2181 for (i = 0; i < wpa_s->sme.sa_query_count; i++) {
2182 if (os_memcmp(wpa_s->sme.sa_query_trans_id +
2183 i * WLAN_SA_QUERY_TR_ID_LEN,
2184 data + 1, WLAN_SA_QUERY_TR_ID_LEN) == 0)
2185 break;
2186 }
2187
2188 if (i >= wpa_s->sme.sa_query_count) {
f049052b
BG		 2189 wpa_dbg(wpa_s, MSG_DEBUG, "SME: No matching SA Query "
2190 "transaction identifier found");
7d878ca7
JM		 2191 return;
2192 }
2193
f049052b
BG		 2194 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reply to pending SA Query received "
2195 "from " MACSTR, MAC2STR(sa));
7d878ca7
JM		 2196 sme_stop_sa_query(wpa_s);
2197}
2198
2199#endif /* CONFIG_IEEE80211W */
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