]> git.ipfire.org Git - thirdparty/hostap.git/blame - wpa_supplicant/sme.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Do not clear FT IEs twice in sme_deinit()
[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"
f9da7505 15#include "common/ocv.h"
c2a04078 16#include "eapol_supp/eapol_supp_sm.h"
90973fb2 17#include "common/wpa_common.h"
98efcc41 18#include "common/sae.h"
10ec6a5f 19#include "common/dpp.h"
3acb5005
JM		 20#include "rsn_supp/wpa.h"
21#include "rsn_supp/pmksa_cache.h"
c2a04078
JM		 22#include "config.h"
23#include "wpa_supplicant_i.h"
2d5b792d 24#include "driver_i.h"
c2a04078
JM		 25#include "wpas_glue.h"
26#include "wps_supplicant.h"
5f3a6aa0 27#include "p2p_supplicant.h"
8bac466b 28#include "notify.h"
6fa81a3b 29#include "bss.h"
9ba9fa07 30#include "scan.h"
c2a04078 31#include "sme.h"
cb418324 32#include "hs20_supplicant.h"
c2a04078 33
e29853bb
BG		 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);
c3701c66 39static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx);
e29853bb
BG		 40#ifdef CONFIG_IEEE80211W
41static void sme_stop_sa_query(struct wpa_supplicant *wpa_s);
42#endif /* CONFIG_IEEE80211W */
43
44
c10347f2
JM		 45#ifdef CONFIG_SAE
46
625f202a
JM		 47static int index_within_array(const int *array, int idx)
48{
49 int i;
50 for (i = 0; i < idx; i++) {
18ca7332 51 if (array[i] <= 0)
625f202a
JM		 52 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;
a9fe1303 61 int default_groups[] = { 19, 20, 21, 0 };
625f202a 62
18ca7332 63 if (!groups || groups[0] <= 0)
625f202a
JM		 64 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];
04e6c4cc 72 if (group <= 0)
625f202a
JM		 73 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);
3d1d4691 77 return 0;
625f202a
JM		 78 }
79 wpa_s->sme.sae_group_index++;
80 }
81
82 return -1;
83}
84
85
8e31e955
JM		 86static struct wpabuf * sme_auth_build_sae_commit(struct wpa_supplicant *wpa_s,
87 struct wpa_ssid *ssid,
fd830891
JM		 88 const u8 *bssid, int external,
89 int reuse)
c10347f2
JM		 90{
91 struct wpabuf *buf;
d136c376 92 size_t len;
a34ca59e 93 const char *password;
c10347f2 94
a0f19e9c
JM		 95#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;
be609c6f
JM		 101 if (!external) {
102 wpabuf_put_le16(buf, 1); /* Transaction seq# */
103 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
104 }
a0f19e9c
JM		 105 wpabuf_put_buf(buf, wpa_s->sae_commit_override);
106 return buf;
107 }
108#endif /* CONFIG_TESTING_OPTIONS */
109
a34ca59e
JM		 110 password = ssid->sae_password;
111 if (!password)
112 password = ssid->passphrase;
113 if (!password) {
8e31e955
JM		 114 wpa_printf(MSG_DEBUG, "SAE: No password available");
115 return NULL;
116 }
117
fd830891
JM		 118 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 }
625f202a
JM		 124 if (sme_set_sae_group(wpa_s) < 0) {
125 wpa_printf(MSG_DEBUG, "SAE: Failed to select group");
a46d72d7 126 return NULL;
625f202a 127 }
a46d72d7 128
8e31e955 129 if (sae_prepare_commit(wpa_s->own_addr, bssid,
a34ca59e 130 (u8 *) password, os_strlen(password),
9be19d0b 131 ssid->sae_password_id,
8e31e955
JM		 132 &wpa_s->sme.sae) < 0) {
133 wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE");
134 return NULL;
135 }
fd830891
JM		 136 if (wpa_s->sme.sae.tmp)
137 os_memcpy(wpa_s->sme.sae.tmp->bssid, bssid, ETH_ALEN);
8e31e955 138
fd830891 139reuse_data:
d136c376 140 len = wpa_s->sme.sae_token ? wpabuf_len(wpa_s->sme.sae_token) : 0;
9be19d0b
JM		 141 if (ssid->sae_password_id)
142 len += 4 + os_strlen(ssid->sae_password_id);
d136c376 143 buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + len);
c10347f2
JM		 144 if (buf == NULL)
145 return NULL;
5ff39c13
SD		 146 if (!external) {
147 wpabuf_put_le16(buf, 1); /* Transaction seq# */
148 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
149 }
9be19d0b
JM		 150 sae_write_commit(&wpa_s->sme.sae, buf, wpa_s->sme.sae_token,
151 ssid->sae_password_id);
c10347f2
JM		 152
153 return buf;
154}
155
156
5ff39c13
SD		 157static struct wpabuf * sme_auth_build_sae_confirm(struct wpa_supplicant *wpa_s,
158 int external)
c10347f2
JM		 159{
160 struct wpabuf *buf;
161
fb8fcc29 162 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN);
c10347f2
JM		 163 if (buf == NULL)
164 return NULL;
165
5ff39c13
SD		 166 if (!external) {
167 wpabuf_put_le16(buf, 2); /* Transaction seq# */
168 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
169 }
fb8fcc29 170 sae_write_confirm(&wpa_s->sme.sae, buf);
c10347f2
JM		 171
172 return buf;
173}
174
175#endif /* CONFIG_SAE */
176
177
b361d580
AK		 178/**
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
00ed0aa2
BL		 202 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)) {
b361d580
AK		 206 wpa_printf(MSG_DEBUG,
207 "RRM: Insufficient RRM support in driver - do not use RRM");
208 return;
209 }
210
849367af
JM		 211 if (sizeof(wpa_s->sme.assoc_req_ie) <
212 wpa_s->sme.assoc_req_ie_len + rrm_ie_len + 2) {
b361d580
AK		 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;
b361d580
AK		 220 os_memset(pos, 0, 2 + rrm_ie_len);
221 *pos++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
222 *pos++ = rrm_ie_len;
70d1e728
AO		 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
d7342014
JM		 228 *pos |= WLAN_RRM_CAPS_BEACON_REPORT_PASSIVE |
229 WLAN_RRM_CAPS_BEACON_REPORT_ACTIVE |
230 WLAN_RRM_CAPS_BEACON_REPORT_TABLE;
76196ddb 231
4a742011
DS		 232 if (wpa_s->lci)
233 pos[1] |= WLAN_RRM_CAPS_LCI_MEASUREMENT;
234
b361d580
AK		 235 wpa_s->sme.assoc_req_ie_len += rrm_ie_len + 2;
236 wpa_s->rrm.rrm_used = 1;
237}
238
239
215ae884
JM		 240static void sme_send_authentication(struct wpa_supplicant *wpa_s,
241 struct wpa_bss *bss, struct wpa_ssid *ssid,
242 int start)
c2a04078
JM		 243{
244 struct wpa_driver_auth_params params;
8bac466b 245 struct wpa_ssid *old_ssid;
fdbe50ed 246#ifdef CONFIG_IEEE80211R
c2a04078 247 const u8 *ie;
fdbe50ed 248#endif /* CONFIG_IEEE80211R */
af3e362f 249#if defined(CONFIG_IEEE80211R) || defined(CONFIG_FILS)
c2a04078 250 const u8 *md = NULL;
af3e362f 251#endif /* CONFIG_IEEE80211R || CONFIG_FILS */
8bac466b 252 int i, bssid_changed;
c10347f2 253 struct wpabuf *resp = NULL;
0bbaa9b9 254 u8 ext_capab[18];
03e47c9c 255 int ext_capab_len;
59b416c7 256 int skip_auth;
170244a1
IP		 257 u8 *wpa_ie;
258 size_t wpa_ie_len;
077232f6
BL		 259#ifdef CONFIG_MBO
260 const u8 *mbo_ie;
261#endif /* CONFIG_MBO */
c2a04078
JM		 262
263 if (bss == NULL) {
f049052b
BG		 264 wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
265 "the network");
6ac4b15e 266 wpas_connect_work_done(wpa_s);
c2a04078
JM		 267 return;
268 }
269
59b416c7
JM		 270 skip_auth = wpa_s->conf->reassoc_same_bss_optim &&
271 wpa_s->reassoc_same_bss;
8f770587
JM		 272 wpa_s->current_bss = bss;
273
c2a04078
JM		 274 os_memset(&params, 0, sizeof(params));
275 wpa_s->reassociate = 0;
276
277 params.freq = bss->freq;
278 params.bssid = bss->bssid;
6fa81a3b
JM		 279 params.ssid = bss->ssid;
280 params.ssid_len = bss->ssid_len;
2f4f73b1 281 params.p2p = ssid->p2p_group;
c2a04078 282
62fa124c
JM		 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
c2a04078
JM		 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
abd9fafa 291 params.auth_alg = WPA_AUTH_ALG_OPEN;
c2a04078
JM		 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)
abd9fafa 296 params.auth_alg = WPA_AUTH_ALG_LEAP;
c2a04078 297 else
abd9fafa 298 params.auth_alg |= WPA_AUTH_ALG_LEAP;
c2a04078
JM		 299 }
300 }
301#endif /* IEEE8021X_EAPOL */
f049052b
BG		 302 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
303 params.auth_alg);
c2a04078 304 if (ssid->auth_alg) {
abd9fafa 305 params.auth_alg = ssid->auth_alg;
f049052b
BG		 306 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
307 "0x%x", params.auth_alg);
c2a04078 308 }
c10347f2 309#ifdef CONFIG_SAE
bc26ac50 310 wpa_s->sme.sae_pmksa_caching = 0;
c10347f2
JM		 311 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);
267ac3bc
JM		 316 if (!rsn) {
317 wpa_dbg(wpa_s, MSG_DEBUG,
318 "SAE enabled, but target BSS does not advertise RSN");
dd6c5980
JM		 319#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 */
267ac3bc
JM		 325 } 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");
c10347f2
JM		 332 }
333 }
334#endif /* CONFIG_SAE */
c2a04078 335
a0b2f99b
JM		 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
8bac466b 343 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
c2a04078
JM		 344 os_memset(wpa_s->bssid, 0, ETH_ALEN);
345 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
8bac466b
JM		 346 if (bssid_changed)
347 wpas_notify_bssid_changed(wpa_s);
c2a04078 348
f337f0e9
JM		 349 if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
350 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
0bf927a0 351 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
c2a04078 352 int try_opportunistic;
869af307
JM		 353 const u8 *cache_id = NULL;
354
6e202021
JM		 355 try_opportunistic = (ssid->proactive_key_caching < 0 ?
356 wpa_s->conf->okc :
357 ssid->proactive_key_caching) &&
c2a04078 358 (ssid->proto & WPA_PROTO_RSN);
869af307
JM		 359#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 */
c2a04078
JM		 363 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
364 wpa_s->current_ssid,
852b2f27
JM		 365 try_opportunistic, cache_id,
366 0) == 0)
ba422613 367 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
c2a04078
JM		 368 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)) {
f049052b
BG		 372 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
373 "key management and encryption suites");
6ac4b15e 374 wpas_connect_work_done(wpa_s);
c2a04078
JM		 375 return;
376 }
dc673aec
JM		 377#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 */
a3f7e518
JM		 391 } 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;
0bf927a0 400 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
c2a04078
JM		 401 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)) {
f049052b
BG		 405 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
406 "key management and encryption suites (no "
407 "scan results)");
6ac4b15e 408 wpas_connect_work_done(wpa_s);
c2a04078
JM		 409 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
170244a1
IP		 430 /* 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
c2a04078 452#ifdef CONFIG_IEEE80211R
6fa81a3b 453 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
c2a04078
JM		 454 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
455 md = ie + 2;
e7846b68 456 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
322d328e
JM		 457 if (md && (!wpa_key_mgmt_ft(ssid->key_mgmt) ||
458 !wpa_key_mgmt_ft(wpa_s->key_mgmt)))
459 md = NULL;
c2a04078
JM		 460 if (md) {
461 /* Prepare for the next transition */
76b7981d 462 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
c2a04078
JM		 463 }
464
af3e362f
JM		 465 if (md) {
466 wpa_dbg(wpa_s, MSG_DEBUG, "SME: FT mobility domain %02x%02x",
467 md[0], md[1]);
468
c2a04078
JM		 469 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);
f4ec630d 479 mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
c2a04078
JM		 480 wpa_s->sme.assoc_req_ie_len += 5;
481 }
482
f808bd59 483 if (wpa_s->sme.prev_bssid_set && wpa_s->sme.ft_used &&
0d7b4409
JM		 484 os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 &&
485 wpa_sm_has_ptk(wpa_s->wpa)) {
f049052b
BG		 486 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT "
487 "over-the-air");
abd9fafa 488 params.auth_alg = WPA_AUTH_ALG_FT;
c2a04078
JM		 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
3f56a2b7 496 wpa_s->sme.mfp = wpas_get_ssid_pmf(wpa_s, ssid);
62d49803 497 if (wpa_s->sme.mfp != NO_MGMT_FRAME_PROTECTION) {
6fa81a3b 498 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
c2a04078
JM		 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)) {
f049052b
BG		 503 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports "
504 "MFP: require MFP");
c2a04078
JM		 505 wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
506 }
507 }
508#endif /* CONFIG_IEEE80211W */
509
5f3a6aa0
JM		 510#ifdef CONFIG_P2P
511 if (wpa_s->global->p2p) {
512 u8 *pos;
513 size_t len;
514 int res;
5f3a6aa0
JM		 515 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;
ffad8858
JM		 518 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
519 ssid->p2p_group);
5f3a6aa0
JM		 520 if (res >= 0)
521 wpa_s->sme.assoc_req_ie_len += res;
522 }
523#endif /* CONFIG_P2P */
524
b36a3a65
AN		 525#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
a0c38e5d
AS		 540 sme_auth_handle_rrm(wpa_s, bss);
541
065c029a 542 wpa_s->sme.assoc_req_ie_len += wpas_supp_op_class_ie(
cb828507 543 wpa_s, ssid, bss->freq,
065c029a 544 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);
5e57ba25 546
cc9a2575
KV		 547 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
0bbaa9b9
JM		 552 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
553 sizeof(ext_capab));
03e47c9c 554 if (ext_capab_len > 0) {
92cbcf91
JM		 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];
03e47c9c 558 os_memmove(pos + ext_capab_len, pos,
92cbcf91
JM		 559 wpa_s->sme.assoc_req_ie_len -
560 (pos - wpa_s->sme.assoc_req_ie));
03e47c9c
JM		 561 wpa_s->sme.assoc_req_ie_len += ext_capab_len;
562 os_memcpy(pos, ext_capab, ext_capab_len);
92cbcf91 563 }
92cbcf91 564
c484b198
AS		 565#ifdef CONFIG_HS20
566 if (is_hs20_network(wpa_s, ssid, bss)) {
567 struct wpabuf *hs20;
568
4204669c 569 hs20 = wpabuf_alloc(20 + MAX_ROAMING_CONS_OI_LEN);
c484b198
AS		 570 if (hs20) {
571 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
572 size_t len;
573
ec2cf403
JM		 574 wpas_hs20_add_indication(hs20, pps_mo_id,
575 get_hs20_version(bss));
4204669c 576 wpas_hs20_add_roam_cons_sel(hs20, ssid);
c484b198
AS		 577 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 }
585 wpabuf_free(hs20);
586 }
587 }
588#endif /* CONFIG_HS20 */
589
170244a1
IP		 590 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
d29fa3a7
JM		 610 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
92c6e2e3 624#ifdef CONFIG_MBO
077232f6
BL		 625 mbo_ie = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
626 if (mbo_ie) {
5e57ba25 627 int len;
92c6e2e3 628
5e57ba25
AS		 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) -
077232f6
BL		 632 wpa_s->sme.assoc_req_ie_len,
633 !!mbo_attr_from_mbo_ie(mbo_ie,
634 OCE_ATTR_ID_CAPA_IND));
5e57ba25
AS		 635 if (len >= 0)
636 wpa_s->sme.assoc_req_ie_len += len;
92c6e2e3
DS		 637 }
638#endif /* CONFIG_MBO */
639
c10347f2 640#ifdef CONFIG_SAE
59b416c7 641 if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE &&
869af307 642 pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, ssid, 0,
ab3aebcc
JM		 643 NULL,
644 wpa_s->key_mgmt == WPA_KEY_MGMT_FT_SAE ?
645 WPA_KEY_MGMT_FT_SAE :
646 WPA_KEY_MGMT_SAE) == 0) {
bc26ac50
JM		 647 wpa_dbg(wpa_s, MSG_DEBUG,
648 "PMKSA cache entry found - try to use PMKSA caching instead of new SAE authentication");
06b1a104 649 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
bc26ac50
JM		 650 params.auth_alg = WPA_AUTH_ALG_OPEN;
651 wpa_s->sme.sae_pmksa_caching = 1;
652 }
653
59b416c7 654 if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE) {
c10347f2 655 if (start)
8e31e955 656 resp = sme_auth_build_sae_commit(wpa_s, ssid,
fd830891
JM		 657 bss->bssid, 0,
658 start == 2);
c10347f2 659 else
5ff39c13 660 resp = sme_auth_build_sae_confirm(wpa_s, 0);
6ac4b15e 661 if (resp == NULL) {
81648d00 662 wpas_connection_failed(wpa_s, bss->bssid);
c10347f2 663 return;
6ac4b15e 664 }
ce16c489
JM		 665 params.auth_data = wpabuf_head(resp);
666 params.auth_data_len = wpabuf_len(resp);
dd43026a 667 wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED;
c10347f2
JM		 668 }
669#endif /* CONFIG_SAE */
670
f00b9b88
JM		 671 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)) {
64983516
JM		 682 const u8 *indic;
683 u16 fils_info;
af835d75
AB		 684 const u8 *realm, *username, *rrk;
685 size_t realm_len, username_len, rrk_len;
686 u16 next_seq_num;
64983516
JM		 687
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
af835d75
AB		 716 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
f00b9b88 729 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
869af307 730 ssid, 0,
852b2f27
JM		 731 wpa_bss_get_fils_cache_id(bss),
732 0) == 0)
f00b9b88
JM		 733 wpa_printf(MSG_DEBUG,
734 "SME: Try to use FILS with PMKSA caching");
af3e362f 735 resp = fils_build_auth(wpa_s->wpa, ssid->fils_dh_group, md);
f00b9b88 736 if (resp) {
76e20f4f
JM		 737 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;
f00b9b88
JM		 749 params.auth_data = wpabuf_head(resp);
750 params.auth_data_len = wpabuf_len(resp);
76e20f4f 751 wpa_s->sme.auth_alg = auth_alg;
f00b9b88
JM		 752 }
753 }
64983516 754no_fils:
f00b9b88
JM		 755#endif /* CONFIG_FILS */
756
a4cba8f1 757 wpa_supplicant_cancel_sched_scan(wpa_s);
c2a04078
JM		 758 wpa_supplicant_cancel_scan(wpa_s);
759
f049052b 760 wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR
c2a04078
JM		 761 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
762 wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
763
6aea02e5 764 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
c2a04078
JM		 765 wpa_clear_keys(wpa_s, bss->bssid);
766 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
8bac466b
JM		 767 if (old_ssid != wpa_s->current_ssid)
768 wpas_notify_network_changed(wpa_s);
c2a04078 769
ece4ac5f
MG		 770#ifdef CONFIG_HS20
771 hs20_configure_frame_filters(wpa_s);
772#endif /* CONFIG_HS20 */
773
d0df6437
IP		 774#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
59b416c7
JM		 800 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
62c72d72 809 wpa_s->sme.auth_alg = params.auth_alg;
c2a04078 810 if (wpa_drv_authenticate(wpa_s, &params) < 0) {
f049052b 811 wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
c2a04078 812 "driver failed");
ed57c590 813 wpas_connection_failed(wpa_s, bss->bssid);
1193dc8f 814 wpa_supplicant_mark_disassoc(wpa_s);
c10347f2 815 wpabuf_free(resp);
6ac4b15e 816 wpas_connect_work_done(wpa_s);
c2a04078
JM		 817 return;
818 }
819
e29853bb
BG		 820 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
821 NULL);
c2a04078
JM		 822
823 /*
824 * Association will be started based on the authentication event from
825 * the driver.
826 */
c10347f2
JM		 827
828 wpabuf_free(resp);
829}
830
831
6ac4b15e
JM		 832static 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) {
b3253ebb
AO		 838 if (work->started)
839 wpa_s->connect_work = NULL;
840
6ac4b15e
JM		 841 wpas_connect_work_free(cwork);
842 return;
843 }
844
845 wpa_s->connect_work = work;
846
a7f5271d 847 if (cwork->bss_removed ||
6108536d
HW		 848 !wpas_valid_bss_ssid(wpa_s, cwork->bss, cwork->ssid) ||
849 wpas_network_disabled(wpa_s, cwork->ssid)) {
6ac4b15e
JM		 850 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
2c2c5579
JM		 855 /* 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
6ac4b15e
JM		 859 sme_send_authentication(wpa_s, cwork->bss, cwork->ssid, 1);
860}
861
862
c10347f2
JM		 863void sme_authenticate(struct wpa_supplicant *wpa_s,
864 struct wpa_bss *bss, struct wpa_ssid *ssid)
865{
6ac4b15e
JM		 866 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
f0e30c84 875 if (radio_work_pending(wpa_s, "sme-connect")) {
f1c4dbf5
IP		 876 /*
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);
f0e30c84
JM		 884 }
885
4ead7cfd
KV		 886 wpas_abort_ongoing_scan(wpa_s);
887
6ac4b15e
JM		 888 cwork = os_zalloc(sizeof(*cwork));
889 if (cwork == NULL)
890 return;
891 cwork->bss = bss;
892 cwork->ssid = ssid;
893 cwork->sme = 1;
894
98efcc41 895#ifdef CONFIG_SAE
dd43026a 896 wpa_s->sme.sae.state = SAE_NOTHING;
98efcc41 897 wpa_s->sme.sae.send_confirm = 0;
18ca7332 898 wpa_s->sme.sae_group_index = 0;
98efcc41 899#endif /* CONFIG_SAE */
6ac4b15e
JM		 900
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);
c2a04078
JM		 904}
905
906
c10347f2 907#ifdef CONFIG_SAE
21af6d15 908
5ff39c13
SD		 909static 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);
fcb3f11e
AP		 924 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);
5ff39c13
SD		 928 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
fd830891 941 resp = sme_auth_build_sae_commit(wpa_s, ssid, bssid, 1, 0);
5ff39c13
SD		 942 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;
dd1a8cef 968 params.ssid = wpa_s->sme.ext_auth.ssid;
5ff39c13 969 params.ssid_len = wpa_s->sme.ext_auth.ssid_len;
dd1a8cef 970 params.bssid = wpa_s->sme.ext_auth.bssid;
5ff39c13
SD		 971 wpa_drv_send_external_auth_status(wpa_s, &params);
972}
973
974
975static void sme_handle_external_auth_start(struct wpa_supplicant *wpa_s,
976 union wpa_event_data *data)
977{
978 struct wpa_ssid *ssid;
979 size_t ssid_str_len = data->external_auth.ssid_len;
dd1a8cef 980 const u8 *ssid_str = data->external_auth.ssid;
5ff39c13
SD		 981
982 /* Get the SSID conf from the ssid string obtained */
983 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
984 if (!wpas_network_disabled(wpa_s, ssid) &&
985 ssid_str_len == ssid->ssid_len &&
18a0508a 986 os_memcmp(ssid_str, ssid->ssid, ssid_str_len) == 0 &&
bcf19000 987 (ssid->key_mgmt & (WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE)))
5ff39c13
SD		 988 break;
989 }
990 if (ssid)
991 sme_external_auth_send_sae_commit(wpa_s,
992 data->external_auth.bssid,
993 ssid);
994 else
995 sme_send_external_auth_status(wpa_s,
996 WLAN_STATUS_UNSPECIFIED_FAILURE);
997}
998
999
1000static void sme_external_auth_send_sae_confirm(struct wpa_supplicant *wpa_s,
1001 const u8 *da)
1002{
1003 struct wpabuf *resp, *buf;
1004
1005 resp = sme_auth_build_sae_confirm(wpa_s, 1);
1006 if (!resp) {
1007 wpa_printf(MSG_DEBUG, "SAE: Confirm message buf alloc failure");
1008 return;
1009 }
1010
1011 wpa_s->sme.sae.state = SAE_CONFIRMED;
1012 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN + wpabuf_len(resp));
1013 if (!buf) {
1014 wpa_printf(MSG_DEBUG, "SAE: Auth Confirm buf alloc failure");
1015 wpabuf_free(resp);
1016 return;
1017 }
1018 wpa_s->sme.seq_num++;
1019 sme_external_auth_build_buf(buf, resp, wpa_s->own_addr,
1020 da, 2, wpa_s->sme.seq_num);
1021 wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1, 0);
1022 wpabuf_free(resp);
1023 wpabuf_free(buf);
1024}
1025
1026
1027void sme_external_auth_trigger(struct wpa_supplicant *wpa_s,
1028 union wpa_event_data *data)
1029{
1030 if (RSN_SELECTOR_GET(&data->external_auth.key_mgmt_suite) !=
1031 RSN_AUTH_KEY_MGMT_SAE)
1032 return;
1033
1034 if (data->external_auth.action == EXT_AUTH_START) {
1035 os_memcpy(&wpa_s->sme.ext_auth, data,
1036 sizeof(struct external_auth));
1037 wpa_s->sme.seq_num = 0;
1038 wpa_s->sme.sae.state = SAE_NOTHING;
1039 wpa_s->sme.sae.send_confirm = 0;
1040 wpa_s->sme.sae_group_index = 0;
1041 sme_handle_external_auth_start(wpa_s, data);
1042 } else if (data->external_auth.action == EXT_AUTH_ABORT) {
1043 /* Report failure to driver for the wrong trigger */
1044 sme_send_external_auth_status(wpa_s,
1045 WLAN_STATUS_UNSPECIFIED_FAILURE);
1046 }
1047}
1048
1049
c10347f2 1050static int sme_sae_auth(struct wpa_supplicant *wpa_s, u16 auth_transaction,
5ff39c13
SD		 1051 u16 status_code, const u8 *data, size_t len,
1052 int external, const u8 *sa)
c10347f2 1053{
a959a3b6
MH		 1054 int *groups;
1055
c10347f2
JM		 1056 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE authentication transaction %u "
1057 "status code %u", auth_transaction, status_code);
c10347f2 1058
d136c376
JM		 1059 if (auth_transaction == 1 &&
1060 status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ &&
1061 wpa_s->sme.sae.state == SAE_COMMITTED &&
5ff39c13 1062 (external || wpa_s->current_bss) && wpa_s->current_ssid) {
a9fe1303 1063 int default_groups[] = { 19, 20, 21, 0 };
a959a3b6
MH		 1064 u16 group;
1065
1066 groups = wpa_s->conf->sae_groups;
1067 if (!groups || groups[0] <= 0)
1068 groups = default_groups;
1069
1070 if (len < sizeof(le16)) {
1071 wpa_dbg(wpa_s, MSG_DEBUG,
1072 "SME: Too short SAE anti-clogging token request");
1073 return -1;
1074 }
1075 group = WPA_GET_LE16(data);
1076 wpa_dbg(wpa_s, MSG_DEBUG,
1077 "SME: SAE anti-clogging token requested (group %u)",
1078 group);
1079 if (sae_group_allowed(&wpa_s->sme.sae, groups, group) !=
1080 WLAN_STATUS_SUCCESS) {
1081 wpa_dbg(wpa_s, MSG_ERROR,
1082 "SME: SAE group %u of anti-clogging request is invalid",
1083 group);
1084 return -1;
1085 }
d136c376 1086 wpabuf_free(wpa_s->sme.sae_token);
a959a3b6
MH		 1087 wpa_s->sme.sae_token = wpabuf_alloc_copy(data + sizeof(le16),
1088 len - sizeof(le16));
5ff39c13
SD		 1089 if (!external)
1090 sme_send_authentication(wpa_s, wpa_s->current_bss,
fd830891 1091 wpa_s->current_ssid, 2);
5ff39c13
SD		 1092 else
1093 sme_external_auth_send_sae_commit(
1094 wpa_s, wpa_s->sme.ext_auth.bssid,
1095 wpa_s->current_ssid);
d136c376
JM		 1096 return 0;
1097 }
1098
625f202a
JM		 1099 if (auth_transaction == 1 &&
1100 status_code == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
1101 wpa_s->sme.sae.state == SAE_COMMITTED &&
5ff39c13 1102 (external || wpa_s->current_bss) && wpa_s->current_ssid) {
625f202a
JM		 1103 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE group not supported");
1104 wpa_s->sme.sae_group_index++;
1105 if (sme_set_sae_group(wpa_s) < 0)
1106 return -1; /* no other groups enabled */
1107 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Try next enabled SAE group");
5ff39c13
SD		 1108 if (!external)
1109 sme_send_authentication(wpa_s, wpa_s->current_bss,
1110 wpa_s->current_ssid, 1);
1111 else
1112 sme_external_auth_send_sae_commit(
1113 wpa_s, wpa_s->sme.ext_auth.bssid,
1114 wpa_s->current_ssid);
625f202a
JM		 1115 return 0;
1116 }
1117
9be19d0b
JM		 1118 if (auth_transaction == 1 &&
1119 status_code == WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER) {
1120 const u8 *bssid = sa ? sa : wpa_s->pending_bssid;
1121
1122 wpa_msg(wpa_s, MSG_INFO,
1123 WPA_EVENT_SAE_UNKNOWN_PASSWORD_IDENTIFIER MACSTR,
1124 MAC2STR(bssid));
1125 return -1;
1126 }
1127
c10347f2
JM		 1128 if (status_code != WLAN_STATUS_SUCCESS)
1129 return -1;
1130
1131 if (auth_transaction == 1) {
6a58444d
JM		 1132 u16 res;
1133
a959a3b6 1134 groups = wpa_s->conf->sae_groups;
18ca7332 1135
c10347f2 1136 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE commit");
5ff39c13 1137 if ((!external && wpa_s->current_bss == NULL) ||
c10347f2
JM		 1138 wpa_s->current_ssid == NULL)
1139 return -1;
dd43026a 1140 if (wpa_s->sme.sae.state != SAE_COMMITTED)
21af6d15 1141 return -1;
18ca7332
JM		 1142 if (groups && groups[0] <= 0)
1143 groups = NULL;
6a58444d
JM		 1144 res = sae_parse_commit(&wpa_s->sme.sae, data, len, NULL, NULL,
1145 groups);
1146 if (res == SAE_SILENTLY_DISCARD) {
1147 wpa_printf(MSG_DEBUG,
1148 "SAE: Drop commit message due to reflection attack");
1149 return 0;
1150 }
1151 if (res != WLAN_STATUS_SUCCESS)
21af6d15 1152 return -1;
146f6c9a
JM		 1153
1154 if (sae_process_commit(&wpa_s->sme.sae) < 0) {
1155 wpa_printf(MSG_DEBUG, "SAE: Failed to process peer "
1156 "commit");
1157 return -1;
1158 }
1159
d136c376
JM		 1160 wpabuf_free(wpa_s->sme.sae_token);
1161 wpa_s->sme.sae_token = NULL;
5ff39c13
SD		 1162 if (!external)
1163 sme_send_authentication(wpa_s, wpa_s->current_bss,
1164 wpa_s->current_ssid, 0);
1165 else
1166 sme_external_auth_send_sae_confirm(wpa_s, sa);
c10347f2
JM		 1167 return 0;
1168 } else if (auth_transaction == 2) {
1169 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE confirm");
dd43026a 1170 if (wpa_s->sme.sae.state != SAE_CONFIRMED)
21af6d15 1171 return -1;
f2e9818f 1172 if (sae_check_confirm(&wpa_s->sme.sae, data, len) < 0)
21af6d15 1173 return -1;
dd43026a 1174 wpa_s->sme.sae.state = SAE_ACCEPTED;
b4fd3613 1175 sae_clear_temp_data(&wpa_s->sme.sae);
5ff39c13
SD		 1176
1177 if (external) {
1178 /* Report success to driver */
1179 sme_send_external_auth_status(wpa_s,
1180 WLAN_STATUS_SUCCESS);
1181 }
1182
c10347f2
JM		 1183 return 1;
1184 }
1185
1186 return -1;
1187}
5ff39c13
SD		 1188
1189
1190void sme_external_auth_mgmt_rx(struct wpa_supplicant *wpa_s,
1191 const u8 *auth_frame, size_t len)
1192{
1193 const struct ieee80211_mgmt *header;
1194 size_t auth_length;
1195
1196 header = (const struct ieee80211_mgmt *) auth_frame;
1197 auth_length = IEEE80211_HDRLEN + sizeof(header->u.auth);
1198
1199 if (len < auth_length) {
1200 /* Notify failure to the driver */
1201 sme_send_external_auth_status(wpa_s,
1202 WLAN_STATUS_UNSPECIFIED_FAILURE);
1203 return;
1204 }
1205
fcb3f11e 1206 if (le_to_host16(header->u.auth.auth_alg) == WLAN_AUTH_SAE) {
5ff39c13
SD		 1207 int res;
1208
fcb3f11e
AP		 1209 res = sme_sae_auth(
1210 wpa_s, le_to_host16(header->u.auth.auth_transaction),
1211 le_to_host16(header->u.auth.status_code),
1212 header->u.auth.variable,
1213 len - auth_length, 1, header->sa);
5ff39c13
SD		 1214 if (res < 0) {
1215 /* Notify failure to the driver */
1216 sme_send_external_auth_status(
1217 wpa_s, WLAN_STATUS_UNSPECIFIED_FAILURE);
1218 return;
1219 }
1220 if (res != 1)
1221 return;
1222
1223 wpa_printf(MSG_DEBUG,
1224 "SME: SAE completed - setting PMK for 4-way handshake");
1225 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
1226 wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
1227 }
1228}
1229
c10347f2
JM		 1230#endif /* CONFIG_SAE */
1231
1232
c2a04078
JM		 1233void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
1234{
c2a04078
JM		 1235 struct wpa_ssid *ssid = wpa_s->current_ssid;
1236
1237 if (ssid == NULL) {
f049052b
BG		 1238 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
1239 "when network is not selected");
c2a04078
JM		 1240 return;
1241 }
1242
1243 if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
f049052b
BG		 1244 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
1245 "when not in authenticating state");
c2a04078
JM		 1246 return;
1247 }
1248
1249 if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
f049052b
BG		 1250 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication with "
1251 "unexpected peer " MACSTR,
1252 MAC2STR(data->auth.peer));
c2a04078
JM		 1253 return;
1254 }
1255
f049052b 1256 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
c10347f2 1257 " auth_type=%d auth_transaction=%d status_code=%d",
f049052b 1258 MAC2STR(data->auth.peer), data->auth.auth_type,
c10347f2 1259 data->auth.auth_transaction, data->auth.status_code);
c2a04078
JM		 1260 wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
1261 data->auth.ies, data->auth.ies_len);
1262
e29853bb
BG		 1263 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1264
c10347f2
JM		 1265#ifdef CONFIG_SAE
1266 if (data->auth.auth_type == WLAN_AUTH_SAE) {
21af6d15
JM		 1267 int res;
1268 res = sme_sae_auth(wpa_s, data->auth.auth_transaction,
1269 data->auth.status_code, data->auth.ies,
5ff39c13 1270 data->auth.ies_len, 0, NULL);
21af6d15
JM		 1271 if (res < 0) {
1272 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1273 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1274
1275 }
1276 if (res != 1)
c10347f2 1277 return;
47b55a3e
JM		 1278
1279 wpa_printf(MSG_DEBUG, "SME: SAE completed - setting PMK for "
1280 "4-way handshake");
bc26ac50 1281 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
70c93963 1282 wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
c10347f2
JM		 1283 }
1284#endif /* CONFIG_SAE */
1285
c2a04078 1286 if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
ec4387f9
JM		 1287 char *ie_txt = NULL;
1288
1289 if (data->auth.ies && data->auth.ies_len) {
1290 size_t buflen = 2 * data->auth.ies_len + 1;
1291 ie_txt = os_malloc(buflen);
1292 if (ie_txt) {
1293 wpa_snprintf_hex(ie_txt, buflen, data->auth.ies,
1294 data->auth.ies_len);
1295 }
1296 }
1297 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AUTH_REJECT MACSTR
5f11880f 1298 " auth_type=%u auth_transaction=%u status_code=%u%s%s",
ec4387f9
JM		 1299 MAC2STR(data->auth.peer), data->auth.auth_type,
1300 data->auth.auth_transaction, data->auth.status_code,
5f11880f
JM		 1301 ie_txt ? " ie=" : "",
1302 ie_txt ? ie_txt : "");
ec4387f9 1303 os_free(ie_txt);
cb1583f6 1304
af835d75
AB		 1305#ifdef CONFIG_FILS
1306 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
1307 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS)
1308 fils_connection_failure(wpa_s);
1309#endif /* CONFIG_FILS */
1310
cb1583f6
SO		 1311 if (data->auth.status_code !=
1312 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
1313 wpa_s->sme.auth_alg == data->auth.auth_type ||
7e6646c7 1314 wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
0fb337c1 1315 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
c1c02342 1316 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
cb1583f6 1317 return;
7e6646c7 1318 }
cb1583f6 1319
d9504779
JM		 1320 wpas_connect_work_done(wpa_s);
1321
cb1583f6
SO		 1322 switch (data->auth.auth_type) {
1323 case WLAN_AUTH_OPEN:
1324 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
1325
f049052b 1326 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying SHARED auth");
cb1583f6
SO		 1327 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
1328 wpa_s->current_ssid);
1329 return;
1330
1331 case WLAN_AUTH_SHARED_KEY:
1332 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_LEAP;
1333
f049052b 1334 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying LEAP auth");
cb1583f6
SO		 1335 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
1336 wpa_s->current_ssid);
1337 return;
1338
1339 default:
1340 return;
1341 }
c2a04078
JM		 1342 }
1343
1344#ifdef CONFIG_IEEE80211R
1345 if (data->auth.auth_type == WLAN_AUTH_FT) {
c6c41f6e
JM		 1346 const u8 *ric_ies = NULL;
1347 size_t ric_ies_len = 0;
1348
1349 if (wpa_s->ric_ies) {
1350 ric_ies = wpabuf_head(wpa_s->ric_ies);
1351 ric_ies_len = wpabuf_len(wpa_s->ric_ies);
1352 }
ee140ef9
JM		 1353 if (wpa_ft_process_response(wpa_s->wpa, data->auth.ies,
1354 data->auth.ies_len, 0,
c6c41f6e
JM		 1355 data->auth.peer,
1356 ric_ies, ric_ies_len) < 0) {
ee140ef9
JM		 1357 wpa_dbg(wpa_s, MSG_DEBUG,
1358 "SME: FT Authentication response processing failed");
1359 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1360 MACSTR
1361 " reason=%d locally_generated=1",
1362 MAC2STR(wpa_s->pending_bssid),
1363 WLAN_REASON_DEAUTH_LEAVING);
1364 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1365 wpa_supplicant_mark_disassoc(wpa_s);
1366 return;
1367 }
c2a04078
JM		 1368 }
1369#endif /* CONFIG_IEEE80211R */
1370
a6609937 1371#ifdef CONFIG_FILS
76e20f4f
JM		 1372 if (data->auth.auth_type == WLAN_AUTH_FILS_SK ||
1373 data->auth.auth_type == WLAN_AUTH_FILS_SK_PFS) {
1374 u16 expect_auth_type;
1375
1376 expect_auth_type = wpa_s->sme.auth_alg ==
1377 WPA_AUTH_ALG_FILS_SK_PFS ? WLAN_AUTH_FILS_SK_PFS :
1378 WLAN_AUTH_FILS_SK;
1379 if (data->auth.auth_type != expect_auth_type) {
1380 wpa_dbg(wpa_s, MSG_DEBUG,
1381 "SME: FILS Authentication response used different auth alg (%u; expected %u)",
1382 data->auth.auth_type, expect_auth_type);
1383 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1384 MACSTR
1385 " reason=%d locally_generated=1",
1386 MAC2STR(wpa_s->pending_bssid),
1387 WLAN_REASON_DEAUTH_LEAVING);
1388 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1389 wpa_supplicant_mark_disassoc(wpa_s);
1390 return;
1391 }
1392
ba9774bd
JM		 1393 if (fils_process_auth(wpa_s->wpa, wpa_s->pending_bssid,
1394 data->auth.ies, data->auth.ies_len) < 0) {
a6609937
JM		 1395 wpa_dbg(wpa_s, MSG_DEBUG,
1396 "SME: FILS Authentication response processing failed");
1397 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
1398 MACSTR
1399 " reason=%d locally_generated=1",
1400 MAC2STR(wpa_s->pending_bssid),
1401 WLAN_REASON_DEAUTH_LEAVING);
1402 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1403 wpa_supplicant_mark_disassoc(wpa_s);
1404 return;
1405 }
1406 }
1407#endif /* CONFIG_FILS */
1408
71024cb2
JM		 1409 sme_associate(wpa_s, ssid->mode, data->auth.peer,
1410 data->auth.auth_type);
1411}
1412
1413
7d440a3b
JM		 1414#ifdef CONFIG_IEEE80211R
1415static void remove_ie(u8 *buf, size_t *len, u8 eid)
1416{
1417 u8 *pos, *next, *end;
1418
1419 pos = (u8 *) get_ie(buf, *len, eid);
1420 if (pos) {
1421 next = pos + 2 + pos[1];
1422 end = buf + *len;
1423 *len -= 2 + pos[1];
1424 os_memmove(pos, next, end - next);
1425 }
1426}
1427#endif /* CONFIG_IEEE80211R */
1428
1429
71024cb2
JM		 1430void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
1431 const u8 *bssid, u16 auth_type)
1432{
1433 struct wpa_driver_associate_params params;
d9a27b04 1434 struct ieee802_11_elems elems;
86cd6928
JM		 1435#ifdef CONFIG_FILS
1436 u8 nonces[2 * FILS_NONCE_LEN];
1437#endif /* CONFIG_FILS */
80e8a5ee
BG		 1438#ifdef CONFIG_HT_OVERRIDES
1439 struct ieee80211_ht_capabilities htcaps;
1440 struct ieee80211_ht_capabilities htcaps_mask;
1441#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1442#ifdef CONFIG_VHT_OVERRIDES
1443 struct ieee80211_vht_capabilities vhtcaps;
1444 struct ieee80211_vht_capabilities vhtcaps_mask;
1445#endif /* CONFIG_VHT_OVERRIDES */
71024cb2 1446
c2a04078 1447 os_memset(&params, 0, sizeof(params));
86cd6928
JM		 1448
1449#ifdef CONFIG_FILS
76e20f4f
JM		 1450 if (auth_type == WLAN_AUTH_FILS_SK ||
1451 auth_type == WLAN_AUTH_FILS_SK_PFS) {
86cd6928
JM		 1452 struct wpabuf *buf;
1453 const u8 *snonce, *anonce;
5732b770
JM		 1454 const unsigned int max_hlp = 20;
1455 struct wpabuf *hlp[max_hlp];
1456 unsigned int i, num_hlp = 0;
1457 struct fils_hlp_req *req;
1458
1459 dl_list_for_each(req, &wpa_s->fils_hlp_req, struct fils_hlp_req,
1460 list) {
1461 hlp[num_hlp] = wpabuf_alloc(2 * ETH_ALEN + 6 +
1462 wpabuf_len(req->pkt));
1463 if (!hlp[num_hlp])
1464 break;
1465 wpabuf_put_data(hlp[num_hlp], req->dst, ETH_ALEN);
1466 wpabuf_put_data(hlp[num_hlp], wpa_s->own_addr,
1467 ETH_ALEN);
1468 wpabuf_put_data(hlp[num_hlp],
1469 "\xaa\xaa\x03\x00\x00\x00", 6);
1470 wpabuf_put_buf(hlp[num_hlp], req->pkt);
1471 num_hlp++;
1472 if (num_hlp >= max_hlp)
1473 break;
1474 }
86cd6928
JM		 1475
1476 buf = fils_build_assoc_req(wpa_s->wpa, &params.fils_kek,
1477 &params.fils_kek_len, &snonce,
5732b770
JM		 1478 &anonce,
1479 (const struct wpabuf **) hlp,
1480 num_hlp);
1481 for (i = 0; i < num_hlp; i++)
1482 wpabuf_free(hlp[i]);
86cd6928
JM		 1483 if (!buf)
1484 return;
7d440a3b
JM		 1485 wpa_hexdump(MSG_DEBUG, "FILS: assoc_req before FILS elements",
1486 wpa_s->sme.assoc_req_ie,
1487 wpa_s->sme.assoc_req_ie_len);
1488#ifdef CONFIG_IEEE80211R
1489 if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
1490 /* Remove RSNE and MDE to allow them to be overridden
1491 * with FILS+FT specific values from
1492 * fils_build_assoc_req(). */
1493 remove_ie(wpa_s->sme.assoc_req_ie,
1494 &wpa_s->sme.assoc_req_ie_len,
1495 WLAN_EID_RSN);
1496 wpa_hexdump(MSG_DEBUG,
1497 "FILS: assoc_req after RSNE removal",
1498 wpa_s->sme.assoc_req_ie,
1499 wpa_s->sme.assoc_req_ie_len);
1500 remove_ie(wpa_s->sme.assoc_req_ie,
1501 &wpa_s->sme.assoc_req_ie_len,
1502 WLAN_EID_MOBILITY_DOMAIN);
1503 wpa_hexdump(MSG_DEBUG,
1504 "FILS: assoc_req after MDE removal",
1505 wpa_s->sme.assoc_req_ie,
1506 wpa_s->sme.assoc_req_ie_len);
1507 }
1508#endif /* CONFIG_IEEE80211R */
86cd6928
JM		 1509 /* TODO: Make wpa_s->sme.assoc_req_ie use dynamic allocation */
1510 if (wpa_s->sme.assoc_req_ie_len + wpabuf_len(buf) >
1511 sizeof(wpa_s->sme.assoc_req_ie)) {
1512 wpa_printf(MSG_ERROR,
1513 "FILS: Not enough buffer room for own AssocReq elements");
1514 wpabuf_free(buf);
1515 return;
1516 }
1517 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1518 wpabuf_head(buf), wpabuf_len(buf));
1519 wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf);
1520 wpabuf_free(buf);
7d440a3b
JM		 1521 wpa_hexdump(MSG_DEBUG, "FILS: assoc_req after FILS elements",
1522 wpa_s->sme.assoc_req_ie,
1523 wpa_s->sme.assoc_req_ie_len);
86cd6928
JM		 1524
1525 os_memcpy(nonces, snonce, FILS_NONCE_LEN);
1526 os_memcpy(nonces + FILS_NONCE_LEN, anonce, FILS_NONCE_LEN);
1527 params.fils_nonces = nonces;
1528 params.fils_nonces_len = sizeof(nonces);
1529 }
1530#endif /* CONFIG_FILS */
1531
0a614799 1532#ifdef CONFIG_OWE
265bda34
JM		 1533#ifdef CONFIG_TESTING_OPTIONS
1534 if (get_ie_ext(wpa_s->sme.assoc_req_ie, wpa_s->sme.assoc_req_ie_len,
1535 WLAN_EID_EXT_OWE_DH_PARAM)) {
1536 wpa_printf(MSG_INFO, "TESTING: Override OWE DH element");
1537 } else
1538#endif /* CONFIG_TESTING_OPTIONS */
0a614799
JM		 1539 if (auth_type == WLAN_AUTH_OPEN &&
1540 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE) {
1541 struct wpabuf *owe_ie;
2cb40e9f 1542 u16 group;
0a614799 1543
2cb40e9f 1544 if (wpa_s->current_ssid && wpa_s->current_ssid->owe_group) {
ec9f4837 1545 group = wpa_s->current_ssid->owe_group;
698c9e20
AK		 1546 } else if (wpa_s->assoc_status_code ==
1547 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED) {
2cb40e9f
JM		 1548 if (wpa_s->last_owe_group == 19)
1549 group = 20;
1550 else if (wpa_s->last_owe_group == 20)
1551 group = 21;
1552 else
1553 group = OWE_DH_GROUP;
698c9e20
AK		 1554 } else {
1555 group = OWE_DH_GROUP;
2cb40e9f 1556 }
698c9e20 1557
2cb40e9f
JM		 1558 wpa_s->last_owe_group = group;
1559 wpa_printf(MSG_DEBUG, "OWE: Try to use group %u", group);
ec9f4837 1560 owe_ie = owe_build_assoc_req(wpa_s->wpa, group);
0a614799
JM		 1561 if (!owe_ie) {
1562 wpa_printf(MSG_ERROR,
1563 "OWE: Failed to build IE for Association Request frame");
1564 return;
1565 }
1566 if (wpa_s->sme.assoc_req_ie_len + wpabuf_len(owe_ie) >
1567 sizeof(wpa_s->sme.assoc_req_ie)) {
1568 wpa_printf(MSG_ERROR,
1569 "OWE: Not enough buffer room for own Association Request frame elements");
1570 wpabuf_free(owe_ie);
1571 return;
1572 }
1573 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1574 wpabuf_head(owe_ie), wpabuf_len(owe_ie));
1575 wpa_s->sme.assoc_req_ie_len += wpabuf_len(owe_ie);
1576 wpabuf_free(owe_ie);
1577 }
1578#endif /* CONFIG_OWE */
1579
10ec6a5f
JM		 1580#ifdef CONFIG_DPP2
1581 if (wpa_s->key_mgmt == WPA_KEY_MGMT_DPP && wpa_s->current_ssid &&
1582 wpa_s->current_ssid->dpp_netaccesskey) {
1583 struct wpa_ssid *ssid = wpa_s->current_ssid;
1584
1585 dpp_pfs_free(wpa_s->dpp_pfs);
1586 wpa_s->dpp_pfs = dpp_pfs_init(ssid->dpp_netaccesskey,
1587 ssid->dpp_netaccesskey_len);
1588 if (!wpa_s->dpp_pfs) {
1589 wpa_printf(MSG_DEBUG, "DPP: Could not initialize PFS");
1590 /* Try to continue without PFS */
1591 goto pfs_fail;
1592 }
1593 if (wpa_s->sme.assoc_req_ie_len +
1594 wpabuf_len(wpa_s->dpp_pfs->ie) >
1595 sizeof(wpa_s->sme.assoc_req_ie)) {
1596 wpa_printf(MSG_ERROR,
1597 "DPP: Not enough buffer room for own Association Request frame elements");
1598 dpp_pfs_free(wpa_s->dpp_pfs);
1599 wpa_s->dpp_pfs = NULL;
1600 goto pfs_fail;
1601 }
1602 os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1603 wpabuf_head(wpa_s->dpp_pfs->ie),
1604 wpabuf_len(wpa_s->dpp_pfs->ie));
1605 wpa_s->sme.assoc_req_ie_len += wpabuf_len(wpa_s->dpp_pfs->ie);
1606 }
1607pfs_fail:
1608#endif /* CONFIG_DPP2 */
1609
5abc7823
VN		 1610 if (wpa_s->current_ssid && wpa_s->current_ssid->multi_ap_backhaul_sta) {
1611 size_t multi_ap_ie_len;
1612
1613 multi_ap_ie_len = add_multi_ap_ie(
1614 wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
1615 sizeof(wpa_s->sme.assoc_req_ie) -
1616 wpa_s->sme.assoc_req_ie_len,
1617 MULTI_AP_BACKHAUL_STA);
1618 if (multi_ap_ie_len == 0) {
1619 wpa_printf(MSG_ERROR,
1620 "Multi-AP: Failed to build Multi-AP IE");
1621 return;
1622 }
1623 wpa_s->sme.assoc_req_ie_len += multi_ap_ie_len;
1624 }
1625
71024cb2 1626 params.bssid = bssid;
c2a04078
JM		 1627 params.ssid = wpa_s->sme.ssid;
1628 params.ssid_len = wpa_s->sme.ssid_len;
4ec68377 1629 params.freq.freq = wpa_s->sme.freq;
1f6c0ab8
BS		 1630 params.bg_scan_period = wpa_s->current_ssid ?
1631 wpa_s->current_ssid->bg_scan_period : -1;
c2a04078
JM		 1632 params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
1633 wpa_s->sme.assoc_req_ie : NULL;
1634 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
8c41734e
JM		 1635 wpa_hexdump(MSG_DEBUG, "SME: Association Request IEs",
1636 params.wpa_ie, params.wpa_ie_len);
4848a38d
JM		 1637 params.pairwise_suite = wpa_s->pairwise_cipher;
1638 params.group_suite = wpa_s->group_cipher;
61a56c14 1639 params.mgmt_group_suite = wpa_s->mgmt_group_cipher;
163f801e
JM		 1640 params.key_mgmt_suite = wpa_s->key_mgmt;
1641 params.wpa_proto = wpa_s->wpa_proto;
80e8a5ee
BG		 1642#ifdef CONFIG_HT_OVERRIDES
1643 os_memset(&htcaps, 0, sizeof(htcaps));
1644 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
1645 params.htcaps = (u8 *) &htcaps;
1646 params.htcaps_mask = (u8 *) &htcaps_mask;
1647 wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, &params);
1648#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1649#ifdef CONFIG_VHT_OVERRIDES
1650 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
1651 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
1652 params.vhtcaps = &vhtcaps;
1653 params.vhtcaps_mask = &vhtcaps_mask;
1654 wpa_supplicant_apply_vht_overrides(wpa_s, wpa_s->current_ssid, &params);
1655#endif /* CONFIG_VHT_OVERRIDES */
c2a04078 1656#ifdef CONFIG_IEEE80211R
8c41734e
JM		 1657 if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies &&
1658 get_ie(wpa_s->sme.ft_ies, wpa_s->sme.ft_ies_len,
1659 WLAN_EID_RIC_DATA)) {
1660 /* There seems to be a pretty inconvenient bug in the Linux
1661 * kernel IE splitting functionality when RIC is used. For now,
1662 * skip correct behavior in IE construction here (i.e., drop the
1663 * additional non-FT-specific IEs) to avoid kernel issues. This
1664 * is fine since RIC is used only for testing purposes in the
1665 * current implementation. */
1666 wpa_printf(MSG_INFO,
1667 "SME: Linux kernel workaround - do not try to include additional IEs with RIC");
c2a04078
JM		 1668 params.wpa_ie = wpa_s->sme.ft_ies;
1669 params.wpa_ie_len = wpa_s->sme.ft_ies_len;
8c41734e
JM		 1670 } else if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
1671 const u8 *rm_en, *pos, *end;
1672 size_t rm_en_len = 0;
1673 u8 *rm_en_dup = NULL, *wpos;
1674
1675 /* Remove RSNE, MDE, FTE to allow them to be overridden with
1676 * FT specific values */
1677 remove_ie(wpa_s->sme.assoc_req_ie,
1678 &wpa_s->sme.assoc_req_ie_len,
1679 WLAN_EID_RSN);
1680 remove_ie(wpa_s->sme.assoc_req_ie,
1681 &wpa_s->sme.assoc_req_ie_len,
1682 WLAN_EID_MOBILITY_DOMAIN);
1683 remove_ie(wpa_s->sme.assoc_req_ie,
1684 &wpa_s->sme.assoc_req_ie_len,
1685 WLAN_EID_FAST_BSS_TRANSITION);
1686 rm_en = get_ie(wpa_s->sme.assoc_req_ie,
1687 wpa_s->sme.assoc_req_ie_len,
1688 WLAN_EID_RRM_ENABLED_CAPABILITIES);
1689 if (rm_en) {
1690 /* Need to remove RM Enabled Capabilities element as
1691 * well temporarily, so that it can be placed between
1692 * RSNE and MDE. */
1693 rm_en_len = 2 + rm_en[1];
1694 rm_en_dup = os_memdup(rm_en, rm_en_len);
1695 remove_ie(wpa_s->sme.assoc_req_ie,
1696 &wpa_s->sme.assoc_req_ie_len,
1697 WLAN_EID_RRM_ENABLED_CAPABILITIES);
1698 }
1699 wpa_hexdump(MSG_DEBUG,
1700 "SME: Association Request IEs after FT IE removal",
1701 wpa_s->sme.assoc_req_ie,
1702 wpa_s->sme.assoc_req_ie_len);
1703 if (wpa_s->sme.assoc_req_ie_len + wpa_s->sme.ft_ies_len +
1704 rm_en_len > sizeof(wpa_s->sme.assoc_req_ie)) {
1705 wpa_printf(MSG_ERROR,
1706 "SME: Not enough buffer room for FT IEs in Association Request frame");
1707 os_free(rm_en_dup);
1708 return;
1709 }
1710
1711 os_memmove(wpa_s->sme.assoc_req_ie + wpa_s->sme.ft_ies_len +
1712 rm_en_len,
1713 wpa_s->sme.assoc_req_ie,
1714 wpa_s->sme.assoc_req_ie_len);
1715 pos = wpa_s->sme.ft_ies;
1716 end = pos + wpa_s->sme.ft_ies_len;
1717 wpos = wpa_s->sme.assoc_req_ie;
1718 if (*pos == WLAN_EID_RSN) {
1719 os_memcpy(wpos, pos, 2 + pos[1]);
1720 wpos += 2 + pos[1];
1721 pos += 2 + pos[1];
1722 }
1723 if (rm_en_dup) {
1724 os_memcpy(wpos, rm_en_dup, rm_en_len);
1725 wpos += rm_en_len;
1726 os_free(rm_en_dup);
1727 }
1728 os_memcpy(wpos, pos, end - pos);
1729 wpa_s->sme.assoc_req_ie_len += wpa_s->sme.ft_ies_len +
1730 rm_en_len;
1731 params.wpa_ie = wpa_s->sme.assoc_req_ie;
1732 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
1733 wpa_hexdump(MSG_DEBUG,
1734 "SME: Association Request IEs after FT override",
1735 params.wpa_ie, params.wpa_ie_len);
c2a04078
JM		 1736 }
1737#endif /* CONFIG_IEEE80211R */
71024cb2 1738 params.mode = mode;
c2a04078 1739 params.mgmt_frame_protection = wpa_s->sme.mfp;
b361d580 1740 params.rrm_used = wpa_s->rrm.rrm_used;
62fa124c
JM		 1741 if (wpa_s->sme.prev_bssid_set)
1742 params.prev_bssid = wpa_s->sme.prev_bssid;
c2a04078
JM		 1743
1744 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
1745 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
1746 params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
4ec68377 1747 params.freq.freq);
c2a04078
JM		 1748
1749 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
1750
9efc3f2a
JM		 1751 if (params.wpa_ie == NULL ||
1752 ieee802_11_parse_elems(params.wpa_ie, params.wpa_ie_len, &elems, 0)
d9a27b04 1753 < 0) {
f049052b 1754 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Could not parse own IEs?!");
d9a27b04
JM		 1755 os_memset(&elems, 0, sizeof(elems));
1756 }
64fa840a
JM		 1757 if (elems.rsn_ie) {
1758 params.wpa_proto = WPA_PROTO_RSN;
d9a27b04
JM		 1759 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.rsn_ie - 2,
1760 elems.rsn_ie_len + 2);
64fa840a
JM		 1761 } else if (elems.wpa_ie) {
1762 params.wpa_proto = WPA_PROTO_WPA;
d9a27b04
JM		 1763 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
1764 elems.wpa_ie_len + 2);
df0f01d9
JM		 1765 } else if (elems.osen) {
1766 params.wpa_proto = WPA_PROTO_OSEN;
1767 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.osen - 2,
1768 elems.osen_len + 2);
64fa840a 1769 } else
d9a27b04 1770 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
ffad8858 1771 if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
6e3f4b89 1772 params.p2p = 1;
d9a27b04 1773
ba307f85
LD		 1774 if (wpa_s->p2pdev->set_sta_uapsd)
1775 params.uapsd = wpa_s->p2pdev->sta_uapsd;
eea2fd9e
JM		 1776 else
1777 params.uapsd = -1;
1778
c2a04078 1779 if (wpa_drv_associate(wpa_s, &params) < 0) {
f049052b
BG		 1780 wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
1781 "driver failed");
e5ad96b7 1782 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
c1c02342 1783 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
e5ad96b7 1784 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
c2a04078
JM		 1785 return;
1786 }
1787
e29853bb
BG		 1788 eloop_register_timeout(SME_ASSOC_TIMEOUT, 0, sme_assoc_timer, wpa_s,
1789 NULL);
daa40960
JM		 1790
1791#ifdef CONFIG_TESTING_OPTIONS
1792 wpabuf_free(wpa_s->last_assoc_req_wpa_ie);
1793 wpa_s->last_assoc_req_wpa_ie = NULL;
1794 if (params.wpa_ie)
1795 wpa_s->last_assoc_req_wpa_ie =
1796 wpabuf_alloc_copy(params.wpa_ie, params.wpa_ie_len);
1797#endif /* CONFIG_TESTING_OPTIONS */
c2a04078
JM		 1798}
1799
1800
1801int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
1802 const u8 *ies, size_t ies_len)
1803{
1804 if (md == NULL || ies == NULL) {
f049052b 1805 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Remove mobility domain");
c2a04078
JM		 1806 os_free(wpa_s->sme.ft_ies);
1807 wpa_s->sme.ft_ies = NULL;
1808 wpa_s->sme.ft_ies_len = 0;
1809 wpa_s->sme.ft_used = 0;
1810 return 0;
1811 }
1812
1813 os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
1814 wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
1815 os_free(wpa_s->sme.ft_ies);
a1f11e34 1816 wpa_s->sme.ft_ies = os_memdup(ies, ies_len);
c2a04078
JM		 1817 if (wpa_s->sme.ft_ies == NULL)
1818 return -1;
c2a04078
JM		 1819 wpa_s->sme.ft_ies_len = ies_len;
1820 return 0;
1821}
efa46078
JM		 1822
1823
e29853bb 1824static void sme_deauth(struct wpa_supplicant *wpa_s)
efa46078 1825{
8bac466b
JM		 1826 int bssid_changed;
1827
8bac466b 1828 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
76d11d3f 1829
76d11d3f
JM		 1830 if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
1831 WLAN_REASON_DEAUTH_LEAVING) < 0) {
f049052b
BG		 1832 wpa_msg(wpa_s, MSG_INFO, "SME: Deauth request to the driver "
1833 "failed");
76d11d3f 1834 }
62fa124c 1835 wpa_s->sme.prev_bssid_set = 0;
76d11d3f 1836
0fb337c1 1837 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
76d11d3f 1838 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
efa46078
JM		 1839 os_memset(wpa_s->bssid, 0, ETH_ALEN);
1840 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
8bac466b
JM		 1841 if (bssid_changed)
1842 wpas_notify_bssid_changed(wpa_s);
efa46078 1843}
da1fb17c
JM		 1844
1845
e29853bb
BG		 1846void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
1847 union wpa_event_data *data)
1848{
1849 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association with " MACSTR " failed: "
1850 "status code %d", MAC2STR(wpa_s->pending_bssid),
1851 data->assoc_reject.status_code);
1852
1853 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1854
bc26ac50
JM		 1855#ifdef CONFIG_SAE
1856 if (wpa_s->sme.sae_pmksa_caching && wpa_s->current_ssid &&
1857 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt)) {
1858 wpa_dbg(wpa_s, MSG_DEBUG,
1859 "PMKSA caching attempt rejected - drop PMKSA cache entry and fall back to SAE authentication");
1860 wpa_sm_aborted_cached(wpa_s->wpa);
1861 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
1862 if (wpa_s->current_bss) {
1863 struct wpa_bss *bss = wpa_s->current_bss;
1864 struct wpa_ssid *ssid = wpa_s->current_ssid;
1865
1866 wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
1867 WLAN_REASON_DEAUTH_LEAVING);
1868 wpas_connect_work_done(wpa_s);
1869 wpa_supplicant_mark_disassoc(wpa_s);
1870 wpa_supplicant_connect(wpa_s, bss, ssid);
1871 return;
1872 }
1873 }
1874#endif /* CONFIG_SAE */
1875
e29853bb
BG		 1876 /*
1877 * For now, unconditionally terminate the previous authentication. In
1878 * theory, this should not be needed, but mac80211 gets quite confused
1879 * if the authentication is left pending.. Some roaming cases might
1880 * benefit from using the previous authentication, so this could be
1881 * optimized in the future.
1882 */
1883 sme_deauth(wpa_s);
1884}
1885
1886
da1fb17c
JM		 1887void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
1888 union wpa_event_data *data)
1889{
f049052b 1890 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication timed out");
0fb337c1 1891 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1193dc8f 1892 wpa_supplicant_mark_disassoc(wpa_s);
da1fb17c
JM		 1893}
1894
1895
1896void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
1897 union wpa_event_data *data)
1898{
f049052b 1899 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association timed out");
0fb337c1 1900 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
da1fb17c 1901 wpa_supplicant_mark_disassoc(wpa_s);
da1fb17c 1902}
a84ed99e
JM		 1903
1904
1905void sme_event_disassoc(struct wpa_supplicant *wpa_s,
d7df0fa7 1906 struct disassoc_info *info)
a84ed99e 1907{
f049052b 1908 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
17fbb751 1909 if (wpa_s->sme.prev_bssid_set) {
a84ed99e
JM		 1910 /*
1911 * cfg80211/mac80211 can get into somewhat confused state if
1912 * the AP only disassociates us and leaves us in authenticated
1913 * state. For now, force the state to be cleared to avoid
1914 * confusing errors if we try to associate with the AP again.
1915 */
f049052b
BG		 1916 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Deauthenticate to clear "
1917 "driver state");
7e26053a 1918 wpa_drv_deauthenticate(wpa_s, wpa_s->sme.prev_bssid,
a84ed99e
JM		 1919 WLAN_REASON_DEAUTH_LEAVING);
1920 }
1921}
7d878ca7
JM		 1922
1923
e29853bb
BG		 1924static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx)
1925{
1926 struct wpa_supplicant *wpa_s = eloop_ctx;
1927 if (wpa_s->wpa_state == WPA_AUTHENTICATING) {
1928 wpa_msg(wpa_s, MSG_DEBUG, "SME: Authentication timeout");
1929 sme_deauth(wpa_s);
1930 }
1931}
1932
1933
1934static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx)
1935{
1936 struct wpa_supplicant *wpa_s = eloop_ctx;
1937 if (wpa_s->wpa_state == WPA_ASSOCIATING) {
1938 wpa_msg(wpa_s, MSG_DEBUG, "SME: Association timeout");
1939 sme_deauth(wpa_s);
1940 }
1941}
1942
1943
1944void sme_state_changed(struct wpa_supplicant *wpa_s)
1945{
1946 /* Make sure timers are cleaned up appropriately. */
1947 if (wpa_s->wpa_state != WPA_ASSOCIATING)
1948 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1949 if (wpa_s->wpa_state != WPA_AUTHENTICATING)
1950 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1951}
1952
1953
1954void sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
1955 const u8 *prev_pending_bssid)
1956{
1957 /*
1958 * mac80211-workaround to force deauth on failed auth cmd,
1959 * requires us to remain in authenticating state to allow the
1960 * second authentication attempt to be continued properly.
1961 */
1962 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Allow pending authentication "
1963 "to proceed after disconnection event");
1964 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
1965 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
1966
1967 /*
1968 * Re-arm authentication timer in case auth fails for whatever reason.
1969 */
1970 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
1971 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
1972 NULL);
1973}
1974
1975
4e70bbf1
JM		 1976void sme_clear_on_disassoc(struct wpa_supplicant *wpa_s)
1977{
1978 wpa_s->sme.prev_bssid_set = 0;
1979#ifdef CONFIG_SAE
1980 wpabuf_free(wpa_s->sme.sae_token);
1981 wpa_s->sme.sae_token = NULL;
1982 sae_clear_data(&wpa_s->sme.sae);
1983#endif /* CONFIG_SAE */
1984#ifdef CONFIG_IEEE80211R
60a5737e 1985 if (wpa_s->sme.ft_ies || wpa_s->sme.ft_used)
4e70bbf1
JM		 1986 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
1987#endif /* CONFIG_IEEE80211R */
01ac337b
AO		 1988#ifdef CONFIG_IEEE80211W
1989 sme_stop_sa_query(wpa_s);
1990#endif /* CONFIG_IEEE80211W */
4e70bbf1
JM		 1991}
1992
1993
e29853bb
BG		 1994void sme_deinit(struct wpa_supplicant *wpa_s)
1995{
4e70bbf1 1996 sme_clear_on_disassoc(wpa_s);
e29853bb
BG		 1997
1998 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
1999 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
c3701c66
RM		 2000 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
2001}
2002
2003
2004static void sme_send_2040_bss_coex(struct wpa_supplicant *wpa_s,
2005 const u8 *chan_list, u8 num_channels,
2006 u8 num_intol)
2007{
2008 struct ieee80211_2040_bss_coex_ie *bc_ie;
2009 struct ieee80211_2040_intol_chan_report *ic_report;
2010 struct wpabuf *buf;
2011
31ded52e
JM		 2012 wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR
2013 " (num_channels=%u num_intol=%u)",
2014 MAC2STR(wpa_s->bssid), num_channels, num_intol);
2015 wpa_hexdump(MSG_DEBUG, "SME: 20/40 BSS Intolerant Channels",
2016 chan_list, num_channels);
c3701c66
RM		 2017
2018 buf = wpabuf_alloc(2 + /* action.category + action_code */
2019 sizeof(struct ieee80211_2040_bss_coex_ie) +
2020 sizeof(struct ieee80211_2040_intol_chan_report) +
2021 num_channels);
2022 if (buf == NULL)
2023 return;
2024
2025 wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
2026 wpabuf_put_u8(buf, WLAN_PA_20_40_BSS_COEX);
2027
2028 bc_ie = wpabuf_put(buf, sizeof(*bc_ie));
2029 bc_ie->element_id = WLAN_EID_20_40_BSS_COEXISTENCE;
2030 bc_ie->length = 1;
2031 if (num_intol)
2032 bc_ie->coex_param |= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ;
2033
2034 if (num_channels > 0) {
2035 ic_report = wpabuf_put(buf, sizeof(*ic_report));
2036 ic_report->element_id = WLAN_EID_20_40_BSS_INTOLERANT;
2037 ic_report->length = num_channels + 1;
2038 ic_report->op_class = 0;
2039 os_memcpy(wpabuf_put(buf, num_channels), chan_list,
2040 num_channels);
2041 }
2042
2043 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
2044 wpa_s->own_addr, wpa_s->bssid,
2045 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
2046 wpa_msg(wpa_s, MSG_INFO,
2047 "SME: Failed to send 20/40 BSS Coexistence frame");
2048 }
2049
2050 wpabuf_free(buf);
2051}
2052
2053
c3701c66
RM		 2054int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
2055{
2056 struct wpa_bss *bss;
2057 const u8 *ie;
2058 u16 ht_cap;
2059 u8 chan_list[P2P_MAX_CHANNELS], channel;
2060 u8 num_channels = 0, num_intol = 0, i;
2061
2062 if (!wpa_s->sme.sched_obss_scan)
2063 return 0;
2064
2065 wpa_s->sme.sched_obss_scan = 0;
2066 if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
2067 return 1;
2068
2069 /*
2070 * Check whether AP uses regulatory triplet or channel triplet in
2071 * country info. Right now the operating class of the BSS channel
2072 * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
2073 * based on the assumption that operating class triplet is not used in
2074 * beacon frame. If the First Channel Number/Operating Extension
2075 * Identifier octet has a positive integer value of 201 or greater,
2076 * then its operating class triplet.
2077 *
2078 * TODO: If Supported Operating Classes element is present in beacon
2079 * frame, have to lookup operating class in Annex E and fill them in
2080 * 2040 coex frame.
2081 */
2082 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
2083 if (ie && (ie[1] >= 6) && (ie[5] >= 201))
2084 return 1;
2085
2086 os_memset(chan_list, 0, sizeof(chan_list));
2087
2088 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2089 /* Skip other band bss */
e864c0ae
JM		 2090 enum hostapd_hw_mode mode;
2091 mode = ieee80211_freq_to_chan(bss->freq, &channel);
2092 if (mode != HOSTAPD_MODE_IEEE80211G &&
2093 mode != HOSTAPD_MODE_IEEE80211B)
c3701c66
RM		 2094 continue;
2095
2096 ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
2097 ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
31ded52e
JM		 2098 wpa_printf(MSG_DEBUG, "SME OBSS scan BSS " MACSTR
2099 " freq=%u chan=%u ht_cap=0x%x",
2100 MAC2STR(bss->bssid), bss->freq, channel, ht_cap);
c3701c66
RM		 2101
2102 if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
7f8eb34d
JM		 2103 if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
2104 num_intol++;
2105
c3701c66
RM		 2106 /* Check whether the channel is already considered */
2107 for (i = 0; i < num_channels; i++) {
2108 if (channel == chan_list[i])
2109 break;
2110 }
2111 if (i != num_channels)
2112 continue;
2113
c3701c66
RM		 2114 chan_list[num_channels++] = channel;
2115 }
2116 }
2117
2118 sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
2119 return 1;
2120}
2121
2122
d97a3c48
JM		 2123static void wpa_obss_scan_freqs_list(struct wpa_supplicant *wpa_s,
2124 struct wpa_driver_scan_params *params)
6434ad09 2125{
d97a3c48 2126 /* Include only affected channels */
6434ad09
JM		 2127 struct hostapd_hw_modes *mode;
2128 int count, i;
d97a3c48 2129 int start, end;
6434ad09 2130
d97a3c48
JM		 2131 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
2132 HOSTAPD_MODE_IEEE80211G);
6434ad09
JM		 2133 if (mode == NULL) {
2134 /* No channels supported in this band - use empty list */
2135 params->freqs = os_zalloc(sizeof(int));
2136 return;
2137 }
2138
d97a3c48
JM		 2139 if (wpa_s->sme.ht_sec_chan == HT_SEC_CHAN_UNKNOWN &&
2140 wpa_s->current_bss) {
2141 const u8 *ie;
2142
2143 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_OPERATION);
2144 if (ie && ie[1] >= 2) {
2145 u8 o;
2146
2147 o = ie[3] & HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK;
2148 if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
2149 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
2150 else if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
2151 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
2152 }
2153 }
2154
2155 start = wpa_s->assoc_freq - 10;
2156 end = wpa_s->assoc_freq + 10;
2157 switch (wpa_s->sme.ht_sec_chan) {
2158 case HT_SEC_CHAN_UNKNOWN:
2159 /* HT40+ possible on channels 1..9 */
2160 if (wpa_s->assoc_freq <= 2452)
2161 start -= 20;
2162 /* HT40- possible on channels 5-13 */
2163 if (wpa_s->assoc_freq >= 2432)
2164 end += 20;
2165 break;
2166 case HT_SEC_CHAN_ABOVE:
2167 end += 20;
2168 break;
2169 case HT_SEC_CHAN_BELOW:
2170 start -= 20;
2171 break;
2172 }
2173 wpa_printf(MSG_DEBUG,
2174 "OBSS: assoc_freq %d possible affected range %d-%d",
2175 wpa_s->assoc_freq, start, end);
2176
f9884c09 2177 params->freqs = os_calloc(mode->num_channels + 1, sizeof(int));
6434ad09
JM		 2178 if (params->freqs == NULL)
2179 return;
2180 for (count = 0, i = 0; i < mode->num_channels; i++) {
d97a3c48
JM		 2181 int freq;
2182
6434ad09
JM		 2183 if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
2184 continue;
d97a3c48
JM		 2185 freq = mode->channels[i].freq;
2186 if (freq - 10 >= end || freq + 10 <= start)
2187 continue; /* not affected */
2188 params->freqs[count++] = freq;
6434ad09
JM		 2189 }
2190}
2191
2192
c3701c66
RM		 2193static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2194{
2195 struct wpa_supplicant *wpa_s = eloop_ctx;
2196 struct wpa_driver_scan_params params;
2197
2198 if (!wpa_s->current_bss) {
2199 wpa_printf(MSG_DEBUG, "SME OBSS: Ignore scan request");
2200 return;
2201 }
2202
2203 os_memset(&params, 0, sizeof(params));
d97a3c48 2204 wpa_obss_scan_freqs_list(wpa_s, &params);
57a8f8af 2205 params.low_priority = 1;
c3701c66
RM		 2206 wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
2207
2208 if (wpa_supplicant_trigger_scan(wpa_s, &params))
2209 wpa_printf(MSG_DEBUG, "SME OBSS: Failed to trigger scan");
2210 else
2211 wpa_s->sme.sched_obss_scan = 1;
6434ad09 2212 os_free(params.freqs);
c3701c66
RM		 2213
2214 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
2215 sme_obss_scan_timeout, wpa_s, NULL);
2216}
2217
2218
2219void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable)
2220{
2221 const u8 *ie;
2222 struct wpa_bss *bss = wpa_s->current_bss;
2223 struct wpa_ssid *ssid = wpa_s->current_ssid;
b6871ebb
AN		 2224 struct hostapd_hw_modes *hw_mode = NULL;
2225 int i;
c3701c66
RM		 2226
2227 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
2228 wpa_s->sme.sched_obss_scan = 0;
d97a3c48 2229 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
c3701c66
RM		 2230 if (!enable)
2231 return;
2232
368b1957
AK		 2233 /*
2234 * Schedule OBSS scan if driver is using station SME in wpa_supplicant
2235 * or it expects OBSS scan to be performed by wpa_supplicant.
2236 */
2237 if (!((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
2238 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OBSS_SCAN)) ||
2239 ssid == NULL || ssid->mode != IEEE80211_MODE_INFRA)
2240 return;
c3701c66 2241
b6871ebb
AN		 2242 if (!wpa_s->hw.modes)
2243 return;
2244
2245 /* only HT caps in 11g mode are relevant */
2246 for (i = 0; i < wpa_s->hw.num_modes; i++) {
2247 hw_mode = &wpa_s->hw.modes[i];
2248 if (hw_mode->mode == HOSTAPD_MODE_IEEE80211G)
2249 break;
2250 }
2251
2252 /* Driver does not support HT40 for 11g or doesn't have 11g. */
2253 if (i == wpa_s->hw.num_modes || !hw_mode ||
2254 !(hw_mode->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
2255 return;
c3701c66
RM		 2256
2257 if (bss == NULL || bss->freq < 2400 || bss->freq > 2500)
2258 return; /* Not associated on 2.4 GHz band */
2259
2260 /* Check whether AP supports HT40 */
2261 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_CAP);
2262 if (!ie || ie[1] < 2 ||
2263 !(WPA_GET_LE16(ie + 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
2264 return; /* AP does not support HT40 */
2265
2266 ie = wpa_bss_get_ie(wpa_s->current_bss,
2267 WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS);
2268 if (!ie || ie[1] < 14)
2269 return; /* AP does not request OBSS scans */
2270
2271 wpa_s->sme.obss_scan_int = WPA_GET_LE16(ie + 6);
2272 if (wpa_s->sme.obss_scan_int < 10) {
2273 wpa_printf(MSG_DEBUG, "SME: Invalid OBSS Scan Interval %u "
2274 "replaced with the minimum 10 sec",
2275 wpa_s->sme.obss_scan_int);
2276 wpa_s->sme.obss_scan_int = 10;
2277 }
2278 wpa_printf(MSG_DEBUG, "SME: OBSS Scan Interval %u sec",
2279 wpa_s->sme.obss_scan_int);
2280 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
2281 sme_obss_scan_timeout, wpa_s, NULL);
e29853bb
BG		 2282}
2283
2284
7d878ca7
JM		 2285#ifdef CONFIG_IEEE80211W
2286
2287static const unsigned int sa_query_max_timeout = 1000;
2288static const unsigned int sa_query_retry_timeout = 201;
f91e68e9 2289static const unsigned int sa_query_ch_switch_max_delay = 5000; /* in usec */
7d878ca7
JM		 2290
2291static int sme_check_sa_query_timeout(struct wpa_supplicant *wpa_s)
2292{
2293 u32 tu;
46b8d4c0
JB		 2294 struct os_reltime now, passed;
2295 os_get_reltime(&now);
2296 os_reltime_sub(&now, &wpa_s->sme.sa_query_start, &passed);
7d878ca7
JM		 2297 tu = (passed.sec * 1000000 + passed.usec) / 1024;
2298 if (sa_query_max_timeout < tu) {
f049052b 2299 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SA Query timed out");
7d878ca7
JM		 2300 sme_stop_sa_query(wpa_s);
2301 wpa_supplicant_deauthenticate(
2302 wpa_s, WLAN_REASON_PREV_AUTH_NOT_VALID);
2303 return 1;
2304 }
2305
2306 return 0;
2307}
2308
2309
2310static void sme_send_sa_query_req(struct wpa_supplicant *wpa_s,
2311 const u8 *trans_id)
2312{
f9da7505
MV		 2313 u8 req[2 + WLAN_SA_QUERY_TR_ID_LEN + OCV_OCI_EXTENDED_LEN];
2314 u8 req_len = 2 + WLAN_SA_QUERY_TR_ID_LEN;
2315
f049052b
BG		 2316 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Request to "
2317 MACSTR, MAC2STR(wpa_s->bssid));
7d878ca7
JM		 2318 wpa_hexdump(MSG_DEBUG, "SME: SA Query Transaction ID",
2319 trans_id, WLAN_SA_QUERY_TR_ID_LEN);
2320 req[0] = WLAN_ACTION_SA_QUERY;
2321 req[1] = WLAN_SA_QUERY_REQUEST;
2322 os_memcpy(req + 2, trans_id, WLAN_SA_QUERY_TR_ID_LEN);
f9da7505
MV		 2323
2324#ifdef CONFIG_OCV
2325 if (wpa_sm_ocv_enabled(wpa_s->wpa)) {
2326 struct wpa_channel_info ci;
2327
2328 if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
2329 wpa_printf(MSG_WARNING,
2330 "Failed to get channel info for OCI element in SA Query Request frame");
2331 return;
2332 }
2333
2334 if (ocv_insert_extended_oci(&ci, req + req_len) < 0)
2335 return;
2336
2337 req_len += OCV_OCI_EXTENDED_LEN;
2338 }
2339#endif /* CONFIG_OCV */
2340
190b9062 2341 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
7d878ca7 2342 wpa_s->own_addr, wpa_s->bssid,
f9da7505 2343 req, req_len, 0) < 0)
f049052b
BG		 2344 wpa_msg(wpa_s, MSG_INFO, "SME: Failed to send SA Query "
2345 "Request");
7d878ca7
JM		 2346}
2347
2348
2349static void sme_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
2350{
2351 struct wpa_supplicant *wpa_s = eloop_ctx;
2352 unsigned int timeout, sec, usec;
2353 u8 *trans_id, *nbuf;
2354
2355 if (wpa_s->sme.sa_query_count > 0 &&
2356 sme_check_sa_query_timeout(wpa_s))
2357 return;
2358
067ffa26
JM		 2359 nbuf = os_realloc_array(wpa_s->sme.sa_query_trans_id,
2360 wpa_s->sme.sa_query_count + 1,
2361 WLAN_SA_QUERY_TR_ID_LEN);
f8608fab
JM		 2362 if (nbuf == NULL) {
2363 sme_stop_sa_query(wpa_s);
7d878ca7 2364 return;
f8608fab 2365 }
7d878ca7
JM		 2366 if (wpa_s->sme.sa_query_count == 0) {
2367 /* Starting a new SA Query procedure */
46b8d4c0 2368 os_get_reltime(&wpa_s->sme.sa_query_start);
7d878ca7
JM		 2369 }
2370 trans_id = nbuf + wpa_s->sme.sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
2371 wpa_s->sme.sa_query_trans_id = nbuf;
2372 wpa_s->sme.sa_query_count++;
2373
cb5ef952
JM		 2374 if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
2375 wpa_printf(MSG_DEBUG, "Could not generate SA Query ID");
f8608fab 2376 sme_stop_sa_query(wpa_s);
cb5ef952
JM		 2377 return;
2378 }
7d878ca7
JM		 2379
2380 timeout = sa_query_retry_timeout;
2381 sec = ((timeout / 1000) * 1024) / 1000;
2382 usec = (timeout % 1000) * 1024;
2383 eloop_register_timeout(sec, usec, sme_sa_query_timer, wpa_s, NULL);
2384
f049052b
BG		 2385 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association SA Query attempt %d",
2386 wpa_s->sme.sa_query_count);
7d878ca7
JM		 2387
2388 sme_send_sa_query_req(wpa_s, trans_id);
2389}
2390
2391
2392static void sme_start_sa_query(struct wpa_supplicant *wpa_s)
2393{
2394 sme_sa_query_timer(wpa_s, NULL);
2395}
2396
2397
19df9b07 2398static void sme_stop_sa_query(struct wpa_supplicant *wpa_s)
7d878ca7 2399{
7a206c50
JM		 2400 if (wpa_s->sme.sa_query_trans_id)
2401 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Stop SA Query");
7d878ca7
JM		 2402 eloop_cancel_timeout(sme_sa_query_timer, wpa_s, NULL);
2403 os_free(wpa_s->sme.sa_query_trans_id);
2404 wpa_s->sme.sa_query_trans_id = NULL;
2405 wpa_s->sme.sa_query_count = 0;
2406}
2407
2408
2409void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
2410 const u8 *da, u16 reason_code)
2411{
2412 struct wpa_ssid *ssid;
3302b7c2 2413 struct os_reltime now;
7d878ca7 2414
7d878ca7
JM		 2415 if (wpa_s->wpa_state != WPA_COMPLETED)
2416 return;
2417 ssid = wpa_s->current_ssid;
3f56a2b7 2418 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION)
7d878ca7
JM		 2419 return;
2420 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
2421 return;
2422 if (reason_code != WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA &&
2423 reason_code != WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA)
2424 return;
2425 if (wpa_s->sme.sa_query_count > 0)
2426 return;
2427
3302b7c2
JM		 2428 os_get_reltime(&now);
2429 if (wpa_s->sme.last_unprot_disconnect.sec &&
2430 !os_reltime_expired(&now, &wpa_s->sme.last_unprot_disconnect, 10))
2431 return; /* limit SA Query procedure frequency */
2432 wpa_s->sme.last_unprot_disconnect = now;
2433
f049052b
BG		 2434 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Unprotected disconnect dropped - "
2435 "possible AP/STA state mismatch - trigger SA Query");
7d878ca7
JM		 2436 sme_start_sa_query(wpa_s);
2437}
2438
2439
f91e68e9
MV		 2440void sme_event_ch_switch(struct wpa_supplicant *wpa_s)
2441{
2442 unsigned int usec;
2443 u32 _rand;
2444
2445 if (wpa_s->wpa_state != WPA_COMPLETED ||
2446 !wpa_sm_ocv_enabled(wpa_s->wpa))
2447 return;
2448
2449 wpa_dbg(wpa_s, MSG_DEBUG,
2450 "SME: Channel switch completed - trigger new SA Query to verify new operating channel");
2451 sme_stop_sa_query(wpa_s);
2452
2453 if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0)
2454 _rand = os_random();
2455 usec = _rand % (sa_query_ch_switch_max_delay + 1);
2456 eloop_register_timeout(0, usec, sme_sa_query_timer, wpa_s, NULL);
2457}
2458
2459
f9da7505
MV		 2460static void sme_process_sa_query_request(struct wpa_supplicant *wpa_s,
2461 const u8 *sa, const u8 *data,
2462 size_t len)
2463{
2464 u8 resp[2 + WLAN_SA_QUERY_TR_ID_LEN + OCV_OCI_EXTENDED_LEN];
2465 u8 resp_len = 2 + WLAN_SA_QUERY_TR_ID_LEN;
2466
2467 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Response to "
2468 MACSTR, MAC2STR(wpa_s->bssid));
2469
2470 resp[0] = WLAN_ACTION_SA_QUERY;
2471 resp[1] = WLAN_SA_QUERY_RESPONSE;
2472 os_memcpy(resp + 2, data + 1, WLAN_SA_QUERY_TR_ID_LEN);
2473
2474#ifdef CONFIG_OCV
2475 if (wpa_sm_ocv_enabled(wpa_s->wpa)) {
2476 struct wpa_channel_info ci;
2477
2478 if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
2479 wpa_printf(MSG_WARNING,
2480 "Failed to get channel info for OCI element in SA Query Response frame");
2481 return;
2482 }
2483
2484 if (ocv_insert_extended_oci(&ci, resp + resp_len) < 0)
2485 return;
2486
2487 resp_len += OCV_OCI_EXTENDED_LEN;
2488 }
2489#endif /* CONFIG_OCV */
2490
2491 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
2492 wpa_s->own_addr, wpa_s->bssid,
2493 resp, resp_len, 0) < 0)
2494 wpa_msg(wpa_s, MSG_INFO,
2495 "SME: Failed to send SA Query Response");
2496}
2497
2498
2499static void sme_process_sa_query_response(struct wpa_supplicant *wpa_s,
2500 const u8 *sa, const u8 *data,
2501 size_t len)
7d878ca7
JM		 2502{
2503 int i;
2504
f9da7505 2505 if (!wpa_s->sme.sa_query_trans_id)
7d878ca7 2506 return;
f9da7505 2507
f049052b
BG		 2508 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query response from "
2509 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
7d878ca7
JM		 2510
2511 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
2512 return;
2513
2514 for (i = 0; i < wpa_s->sme.sa_query_count; i++) {
2515 if (os_memcmp(wpa_s->sme.sa_query_trans_id +
2516 i * WLAN_SA_QUERY_TR_ID_LEN,
2517 data + 1, WLAN_SA_QUERY_TR_ID_LEN) == 0)
2518 break;
2519 }
2520
2521 if (i >= wpa_s->sme.sa_query_count) {
f049052b
BG		 2522 wpa_dbg(wpa_s, MSG_DEBUG, "SME: No matching SA Query "
2523 "transaction identifier found");
7d878ca7
JM		 2524 return;
2525 }
2526
f049052b
BG		 2527 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reply to pending SA Query received "
2528 "from " MACSTR, MAC2STR(sa));
7d878ca7
JM		 2529 sme_stop_sa_query(wpa_s);
2530}
2531
f9da7505
MV		 2532
2533void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
2534 const u8 *data, size_t len)
2535{
2536 if (len < 1 + WLAN_SA_QUERY_TR_ID_LEN)
2537 return;
2538
2539 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query frame from "
2540 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
2541
2542#ifdef CONFIG_OCV
2543 if (wpa_sm_ocv_enabled(wpa_s->wpa)) {
2544 struct ieee802_11_elems elems;
2545 struct wpa_channel_info ci;
2546
2547 if (ieee802_11_parse_elems(data + 1 + WLAN_SA_QUERY_TR_ID_LEN,
2548 len - 1 - WLAN_SA_QUERY_TR_ID_LEN,
2549 &elems, 1) == ParseFailed) {
2550 wpa_printf(MSG_DEBUG,
2551 "SA Query: Failed to parse elements");
2552 return;
2553 }
2554
2555 if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
2556 wpa_printf(MSG_WARNING,
2557 "Failed to get channel info to validate received OCI in SA Query Action frame");
2558 return;
2559 }
2560
2561 if (ocv_verify_tx_params(elems.oci, elems.oci_len, &ci,
2562 channel_width_to_int(ci.chanwidth),
2563 ci.seg1_idx) != 0) {
2564 wpa_printf(MSG_WARNING, "%s", ocv_errorstr);
2565 return;
2566 }
2567 }
2568#endif /* CONFIG_OCV */
2569
2570 if (data[0] == WLAN_SA_QUERY_REQUEST)
2571 sme_process_sa_query_request(wpa_s, sa, data, len);
2572 else if (data[0] == WLAN_SA_QUERY_RESPONSE)
2573 sme_process_sa_query_response(wpa_s, sa, data, len);
2574}
2575
7d878ca7 2576#endif /* CONFIG_IEEE80211W */
Unnamed repository; edit this file 'description' to name the repository.