3 * Copyright (c) 2009-2014, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #include "utils/eloop.h"
13 #include "common/ieee802_11_defs.h"
14 #include "common/ieee802_11_common.h"
15 #include "common/ocv.h"
16 #include "eapol_supp/eapol_supp_sm.h"
17 #include "common/wpa_common.h"
18 #include "common/sae.h"
19 #include "common/dpp.h"
20 #include "rsn_supp/wpa.h"
21 #include "rsn_supp/pmksa_cache.h"
23 #include "wpa_supplicant_i.h"
25 #include "wpas_glue.h"
26 #include "wps_supplicant.h"
27 #include "p2p_supplicant.h"
32 #include "hs20_supplicant.h"
34 #define SME_AUTH_TIMEOUT 5
35 #define SME_ASSOC_TIMEOUT 5
37 static void sme_auth_timer(void *eloop_ctx
, void *timeout_ctx
);
38 static void sme_assoc_timer(void *eloop_ctx
, void *timeout_ctx
);
39 static void sme_obss_scan_timeout(void *eloop_ctx
, void *timeout_ctx
);
40 #ifdef CONFIG_IEEE80211W
41 static void sme_stop_sa_query(struct wpa_supplicant
*wpa_s
);
42 #endif /* CONFIG_IEEE80211W */
47 static int index_within_array(const int *array
, int idx
)
50 for (i
= 0; i
< idx
; i
++) {
58 static int sme_set_sae_group(struct wpa_supplicant
*wpa_s
)
60 int *groups
= wpa_s
->conf
->sae_groups
;
61 int default_groups
[] = { 19, 20, 21, 0 };
63 if (!groups
|| groups
[0] <= 0)
64 groups
= default_groups
;
66 /* Configuration may have changed, so validate current index */
67 if (!index_within_array(groups
, wpa_s
->sme
.sae_group_index
))
71 int group
= groups
[wpa_s
->sme
.sae_group_index
];
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
);
79 wpa_s
->sme
.sae_group_index
++;
86 static struct wpabuf
* sme_auth_build_sae_commit(struct wpa_supplicant
*wpa_s
,
87 struct wpa_ssid
*ssid
,
88 const u8
*bssid
, int external
,
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
));
102 wpabuf_put_le16(buf
, 1); /* Transaction seq# */
103 wpabuf_put_le16(buf
, WLAN_STATUS_SUCCESS
);
105 wpabuf_put_buf(buf
, wpa_s
->sae_commit_override
);
108 #endif /* CONFIG_TESTING_OPTIONS */
110 password
= ssid
->sae_password
;
112 password
= ssid
->passphrase
;
114 wpa_printf(MSG_DEBUG
, "SAE: No password available");
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");
124 if (sme_set_sae_group(wpa_s
) < 0) {
125 wpa_printf(MSG_DEBUG
, "SAE: Failed to select group");
129 if (sae_prepare_commit(wpa_s
->own_addr
, bssid
,
130 (u8
*) password
, os_strlen(password
),
131 ssid
->sae_password_id
,
132 &wpa_s
->sme
.sae
) < 0) {
133 wpa_printf(MSG_DEBUG
, "SAE: Could not pick PWE");
136 if (wpa_s
->sme
.sae
.tmp
)
137 os_memcpy(wpa_s
->sme
.sae
.tmp
->bssid
, bssid
, ETH_ALEN
);
140 len
= wpa_s
->sme
.sae_token
? wpabuf_len(wpa_s
->sme
.sae_token
) : 0;
141 if (ssid
->sae_password_id
)
142 len
+= 4 + os_strlen(ssid
->sae_password_id
);
143 buf
= wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN
+ len
);
147 wpabuf_put_le16(buf
, 1); /* Transaction seq# */
148 wpabuf_put_le16(buf
, WLAN_STATUS_SUCCESS
);
150 sae_write_commit(&wpa_s
->sme
.sae
, buf
, wpa_s
->sme
.sae_token
,
151 ssid
->sae_password_id
);
157 static struct wpabuf
* sme_auth_build_sae_confirm(struct wpa_supplicant
*wpa_s
,
162 buf
= wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN
);
167 wpabuf_put_le16(buf
, 2); /* Transaction seq# */
168 wpabuf_put_le16(buf
, WLAN_STATUS_SUCCESS
);
170 sae_write_confirm(&wpa_s
->sme
.sae
, buf
);
175 #endif /* CONFIG_SAE */
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
183 static void sme_auth_handle_rrm(struct wpa_supplicant
*wpa_s
,
186 const u8 rrm_ie_len
= 5;
190 wpa_s
->rrm
.rrm_used
= 0;
192 wpa_printf(MSG_DEBUG
,
193 "RRM: Determining whether RRM can be used - device support: 0x%x",
194 wpa_s
->drv_rrm_flags
);
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");
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
)) {
206 wpa_printf(MSG_DEBUG
,
207 "RRM: Insufficient RRM support in driver - do not use RRM");
211 if (sizeof(wpa_s
->sme
.assoc_req_ie
) <
212 wpa_s
->sme
.assoc_req_ie_len
+ rrm_ie_len
+ 2) {
214 "RRM: Unable to use RRM, no room for RRM IE");
218 wpa_printf(MSG_DEBUG
, "RRM: Adding RRM IE to Association Request");
219 pos
= wpa_s
->sme
.assoc_req_ie
+ wpa_s
->sme
.assoc_req_ie_len
;
220 os_memset(pos
, 0, 2 + rrm_ie_len
);
221 *pos
++ = WLAN_EID_RRM_ENABLED_CAPABILITIES
;
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
;
228 *pos
|= WLAN_RRM_CAPS_BEACON_REPORT_PASSIVE
|
229 WLAN_RRM_CAPS_BEACON_REPORT_ACTIVE
|
230 WLAN_RRM_CAPS_BEACON_REPORT_TABLE
;
233 pos
[1] |= WLAN_RRM_CAPS_LCI_MEASUREMENT
;
235 wpa_s
->sme
.assoc_req_ie_len
+= rrm_ie_len
+ 2;
236 wpa_s
->rrm
.rrm_used
= 1;
240 static void sme_send_authentication(struct wpa_supplicant
*wpa_s
,
241 struct wpa_bss
*bss
, struct wpa_ssid
*ssid
,
244 struct wpa_driver_auth_params params
;
245 struct wpa_ssid
*old_ssid
;
246 #ifdef CONFIG_IEEE80211R
248 #endif /* CONFIG_IEEE80211R */
249 #if defined(CONFIG_IEEE80211R) || defined(CONFIG_FILS)
251 #endif /* CONFIG_IEEE80211R || CONFIG_FILS */
252 int i
, bssid_changed
;
253 struct wpabuf
*resp
= NULL
;
261 #endif /* CONFIG_MBO */
264 wpa_msg(wpa_s
, MSG_ERROR
, "SME: No scan result available for "
266 wpas_connect_work_done(wpa_s
);
270 skip_auth
= wpa_s
->conf
->reassoc_same_bss_optim
&&
271 wpa_s
->reassoc_same_bss
;
272 wpa_s
->current_bss
= bss
;
274 os_memset(¶ms
, 0, sizeof(params
));
275 wpa_s
->reassociate
= 0;
277 params
.freq
= bss
->freq
;
278 params
.bssid
= bss
->bssid
;
279 params
.ssid
= bss
->ssid
;
280 params
.ssid_len
= bss
->ssid_len
;
281 params
.p2p
= ssid
->p2p_group
;
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;
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
;
291 params
.auth_alg
= WPA_AUTH_ALG_OPEN
;
292 #ifdef IEEE8021X_EAPOL
293 if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
295 if (ssid
->non_leap
== 0)
296 params
.auth_alg
= WPA_AUTH_ALG_LEAP
;
298 params
.auth_alg
|= WPA_AUTH_ALG_LEAP
;
301 #endif /* IEEE8021X_EAPOL */
302 wpa_dbg(wpa_s
, MSG_DEBUG
, "Automatic auth_alg selection: 0x%x",
304 if (ssid
->auth_alg
) {
305 params
.auth_alg
= ssid
->auth_alg
;
306 wpa_dbg(wpa_s
, MSG_DEBUG
, "Overriding auth_alg selection: "
307 "0x%x", params
.auth_alg
);
310 wpa_s
->sme
.sae_pmksa_caching
= 0;
311 if (wpa_key_mgmt_sae(ssid
->key_mgmt
)) {
313 struct wpa_ie_data ied
;
315 rsn
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
317 wpa_dbg(wpa_s
, MSG_DEBUG
,
318 "SAE enabled, but target BSS does not advertise RSN");
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 */
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
;
330 wpa_dbg(wpa_s
, MSG_DEBUG
,
331 "SAE enabled, but target BSS does not advertise SAE AKM for RSN");
334 #endif /* CONFIG_SAE */
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
];
341 params
.wep_tx_keyidx
= ssid
->wep_tx_keyidx
;
343 bssid_changed
= !is_zero_ether_addr(wpa_s
->bssid
);
344 os_memset(wpa_s
->bssid
, 0, ETH_ALEN
);
345 os_memcpy(wpa_s
->pending_bssid
, bss
->bssid
, ETH_ALEN
);
347 wpas_notify_bssid_changed(wpa_s
);
349 if ((wpa_bss_get_vendor_ie(bss
, WPA_IE_VENDOR_TYPE
) ||
350 wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) &&
351 wpa_key_mgmt_wpa(ssid
->key_mgmt
)) {
352 int try_opportunistic
;
353 const u8
*cache_id
= NULL
;
355 try_opportunistic
= (ssid
->proactive_key_caching
< 0 ?
357 ssid
->proactive_key_caching
) &&
358 (ssid
->proto
& WPA_PROTO_RSN
);
360 if (wpa_key_mgmt_fils(ssid
->key_mgmt
))
361 cache_id
= wpa_bss_get_fils_cache_id(bss
);
362 #endif /* CONFIG_FILS */
363 if (pmksa_cache_set_current(wpa_s
->wpa
, NULL
, bss
->bssid
,
365 try_opportunistic
, cache_id
,
367 eapol_sm_notify_pmkid_attempt(wpa_s
->eapol
);
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
)) {
372 wpa_msg(wpa_s
, MSG_WARNING
, "SME: Failed to set WPA "
373 "key management and encryption suites");
374 wpas_connect_work_done(wpa_s
);
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
);
390 #endif /* CONFIG_HS20 */
391 } else if ((ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
) &&
392 wpa_key_mgmt_wpa_ieee8021x(ssid
->key_mgmt
)) {
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.
398 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
399 wpa_s
->sme
.assoc_req_ie_len
= 0;
400 } else if (wpa_key_mgmt_wpa_any(ssid
->key_mgmt
)) {
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
)) {
405 wpa_msg(wpa_s
, MSG_WARNING
, "SME: Failed to set WPA "
406 "key management and encryption suites (no "
408 wpas_connect_work_done(wpa_s
);
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
);
421 wpa_s
->sme
.assoc_req_ie_len
= 0;
423 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
424 #endif /* CONFIG_WPS */
426 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
427 wpa_s
->sme
.assoc_req_ie_len
= 0;
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.
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
);
441 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Storing WPA IE");
443 wpa_ie_len
= wpa_s
->sme
.assoc_req_ie_len
;
444 wpa_s
->sme
.assoc_req_ie_len
= 0;
446 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed copy WPA IE");
447 wpas_connect_work_done(wpa_s
);
452 #ifdef CONFIG_IEEE80211R
453 ie
= wpa_bss_get_ie(bss
, WLAN_EID_MOBILITY_DOMAIN
);
454 if (ie
&& ie
[1] >= MOBILITY_DOMAIN_ID_LEN
)
456 wpa_sm_set_ft_params(wpa_s
->wpa
, ie
, ie
? 2 + ie
[1] : 0);
457 if (md
&& (!wpa_key_mgmt_ft(ssid
->key_mgmt
) ||
458 !wpa_key_mgmt_ft(wpa_s
->key_mgmt
)))
461 /* Prepare for the next transition */
462 wpa_ft_prepare_auth_request(wpa_s
->wpa
, ie
);
466 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: FT mobility domain %02x%02x",
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
);
479 mdie
->ft_capab
= md
[MOBILITY_DOMAIN_ID_LEN
];
480 wpa_s
->sme
.assoc_req_ie_len
+= 5;
483 if (wpa_s
->sme
.prev_bssid_set
&& wpa_s
->sme
.ft_used
&&
484 os_memcmp(md
, wpa_s
->sme
.mobility_domain
, 2) == 0 &&
485 wpa_sm_has_ptk(wpa_s
->wpa
)) {
486 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Trying to use FT "
488 params
.auth_alg
= WPA_AUTH_ALG_FT
;
489 params
.ie
= wpa_s
->sme
.ft_ies
;
490 params
.ie_len
= wpa_s
->sme
.ft_ies_len
;
493 #endif /* CONFIG_IEEE80211R */
495 #ifdef CONFIG_IEEE80211W
496 wpa_s
->sme
.mfp
= wpas_get_ssid_pmf(wpa_s
, ssid
);
497 if (wpa_s
->sme
.mfp
!= NO_MGMT_FRAME_PROTECTION
) {
498 const u8
*rsn
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
499 struct wpa_ie_data _ie
;
500 if (rsn
&& wpa_parse_wpa_ie(rsn
, 2 + rsn
[1], &_ie
) == 0 &&
502 (WPA_CAPABILITY_MFPC
| WPA_CAPABILITY_MFPR
)) {
503 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Selected AP supports "
505 wpa_s
->sme
.mfp
= MGMT_FRAME_PROTECTION_REQUIRED
;
508 #endif /* CONFIG_IEEE80211W */
511 if (wpa_s
->global
->p2p
) {
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
;
518 res
= wpas_p2p_assoc_req_ie(wpa_s
, bss
, pos
, len
,
521 wpa_s
->sme
.assoc_req_ie_len
+= res
;
523 #endif /* CONFIG_P2P */
526 if (wpa_s
->fst_ies
) {
527 int fst_ies_len
= wpabuf_len(wpa_s
->fst_ies
);
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
),
535 wpa_s
->sme
.assoc_req_ie_len
+= fst_ies_len
;
538 #endif /* CONFIG_FST */
540 sme_auth_handle_rrm(wpa_s
, bss
);
542 wpa_s
->sme
.assoc_req_ie_len
+= wpas_supp_op_class_ie(
543 wpa_s
, ssid
, bss
->freq
,
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
);
548 wpa_drv_get_ext_capa(wpa_s
, WPA_IF_P2P_CLIENT
);
550 wpa_drv_get_ext_capa(wpa_s
, WPA_IF_STATION
);
552 ext_capab_len
= wpas_build_ext_capab(wpa_s
, ext_capab
,
554 if (ext_capab_len
> 0) {
555 u8
*pos
= wpa_s
->sme
.assoc_req_ie
;
556 if (wpa_s
->sme
.assoc_req_ie_len
> 0 && pos
[0] == WLAN_EID_RSN
)
558 os_memmove(pos
+ ext_capab_len
, pos
,
559 wpa_s
->sme
.assoc_req_ie_len
-
560 (pos
- wpa_s
->sme
.assoc_req_ie
));
561 wpa_s
->sme
.assoc_req_ie_len
+= ext_capab_len
;
562 os_memcpy(pos
, ext_capab
, ext_capab_len
);
566 if (is_hs20_network(wpa_s
, ssid
, bss
)) {
569 hs20
= wpabuf_alloc(20 + MAX_ROAMING_CONS_OI_LEN
);
571 int pps_mo_id
= hs20_get_pps_mo_id(wpa_s
, ssid
);
574 wpas_hs20_add_indication(hs20
, pps_mo_id
,
575 get_hs20_version(bss
));
576 wpas_hs20_add_roam_cons_sel(hs20
, ssid
);
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
);
588 #endif /* CONFIG_HS20 */
593 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Reinsert WPA IE");
595 len
= sizeof(wpa_s
->sme
.assoc_req_ie
) -
596 wpa_s
->sme
.assoc_req_ie_len
;
598 if (len
> wpa_ie_len
) {
599 os_memcpy(wpa_s
->sme
.assoc_req_ie
+
600 wpa_s
->sme
.assoc_req_ie_len
,
602 wpa_s
->sme
.assoc_req_ie_len
+= wpa_ie_len
;
604 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Failed to add WPA IE");
610 if (wpa_s
->vendor_elem
[VENDOR_ELEM_ASSOC_REQ
]) {
611 struct wpabuf
*buf
= wpa_s
->vendor_elem
[VENDOR_ELEM_ASSOC_REQ
];
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
);
625 mbo_ie
= wpa_bss_get_vendor_ie(bss
, MBO_IE_VENDOR_TYPE
);
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
) -
632 wpa_s
->sme
.assoc_req_ie_len
,
633 !!mbo_attr_from_mbo_ie(mbo_ie
,
634 OCE_ATTR_ID_CAPA_IND
));
636 wpa_s
->sme
.assoc_req_ie_len
+= len
;
638 #endif /* CONFIG_MBO */
641 if (!skip_auth
&& params
.auth_alg
== WPA_AUTH_ALG_SAE
&&
642 pmksa_cache_set_current(wpa_s
->wpa
, NULL
, bss
->bssid
, ssid
, 0,
644 wpa_s
->key_mgmt
== WPA_KEY_MGMT_FT_SAE
?
645 WPA_KEY_MGMT_FT_SAE
:
646 WPA_KEY_MGMT_SAE
) == 0) {
647 wpa_dbg(wpa_s
, MSG_DEBUG
,
648 "PMKSA cache entry found - try to use PMKSA caching instead of new SAE authentication");
649 wpa_sm_set_pmk_from_pmksa(wpa_s
->wpa
);
650 params
.auth_alg
= WPA_AUTH_ALG_OPEN
;
651 wpa_s
->sme
.sae_pmksa_caching
= 1;
654 if (!skip_auth
&& params
.auth_alg
== WPA_AUTH_ALG_SAE
) {
656 resp
= sme_auth_build_sae_commit(wpa_s
, ssid
,
660 resp
= sme_auth_build_sae_confirm(wpa_s
, 0);
662 wpas_connection_failed(wpa_s
, bss
->bssid
);
665 params
.auth_data
= wpabuf_head(resp
);
666 params
.auth_data_len
= wpabuf_len(resp
);
667 wpa_s
->sme
.sae
.state
= start
? SAE_COMMITTED
: SAE_CONFIRMED
;
669 #endif /* CONFIG_SAE */
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
);
677 /* TODO: FILS operations can in some cases be done between different
678 * network_ctx (i.e., same credentials can be used with multiple
680 if (params
.auth_alg
== WPA_AUTH_ALG_OPEN
&&
681 wpa_key_mgmt_fils(ssid
->key_mgmt
)) {
684 const u8
*realm
, *username
, *rrk
;
685 size_t realm_len
, username_len
, rrk_len
;
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
));
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
));
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
));
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
,
724 wpa_printf(MSG_DEBUG
,
725 "SME: FILS authentication for this realm failed last time - try to regenerate ERP key hierarchy");
729 if (pmksa_cache_set_current(wpa_s
->wpa
, NULL
, bss
->bssid
,
731 wpa_bss_get_fils_cache_id(bss
),
733 wpa_printf(MSG_DEBUG
,
734 "SME: Try to use FILS with PMKSA caching");
735 resp
= fils_build_auth(wpa_s
->wpa
, ssid
->fils_dh_group
, md
);
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
);
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
;
749 params
.auth_data
= wpabuf_head(resp
);
750 params
.auth_data_len
= wpabuf_len(resp
);
751 wpa_s
->sme
.auth_alg
= auth_alg
;
755 #endif /* CONFIG_FILS */
757 wpa_supplicant_cancel_sched_scan(wpa_s
);
758 wpa_supplicant_cancel_scan(wpa_s
);
760 wpa_msg(wpa_s
, MSG_INFO
, "SME: Trying to authenticate with " MACSTR
761 " (SSID='%s' freq=%d MHz)", MAC2STR(params
.bssid
),
762 wpa_ssid_txt(params
.ssid
, params
.ssid_len
), params
.freq
);
764 eapol_sm_notify_portValid(wpa_s
->eapol
, FALSE
);
765 wpa_clear_keys(wpa_s
, bss
->bssid
);
766 wpa_supplicant_set_state(wpa_s
, WPA_AUTHENTICATING
);
767 if (old_ssid
!= wpa_s
->current_ssid
)
768 wpas_notify_network_changed(wpa_s
);
771 hs20_configure_frame_filters(wpa_s
);
772 #endif /* CONFIG_HS20 */
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.
780 if (wpa_s
->num_multichan_concurrent
< 2) {
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)",
787 if (wpas_p2p_handle_frequency_conflicts(wpa_s
,
790 wpas_connection_failed(wpa_s
, bss
->bssid
);
791 wpa_supplicant_mark_disassoc(wpa_s
);
793 wpas_connect_work_done(wpa_s
);
798 #endif /* CONFIG_P2P */
801 wpa_msg(wpa_s
, MSG_DEBUG
,
802 "SME: Skip authentication step on reassoc-to-same-BSS");
804 sme_associate(wpa_s
, ssid
->mode
, bss
->bssid
, WLAN_AUTH_OPEN
);
809 wpa_s
->sme
.auth_alg
= params
.auth_alg
;
810 if (wpa_drv_authenticate(wpa_s
, ¶ms
) < 0) {
811 wpa_msg(wpa_s
, MSG_INFO
, "SME: Authentication request to the "
813 wpas_connection_failed(wpa_s
, bss
->bssid
);
814 wpa_supplicant_mark_disassoc(wpa_s
);
816 wpas_connect_work_done(wpa_s
);
820 eloop_register_timeout(SME_AUTH_TIMEOUT
, 0, sme_auth_timer
, wpa_s
,
824 * Association will be started based on the authentication event from
832 static void sme_auth_start_cb(struct wpa_radio_work
*work
, int deinit
)
834 struct wpa_connect_work
*cwork
= work
->ctx
;
835 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
839 wpa_s
->connect_work
= NULL
;
841 wpas_connect_work_free(cwork
);
845 wpa_s
->connect_work
= work
;
847 if (cwork
->bss_removed
||
848 !wpas_valid_bss_ssid(wpa_s
, cwork
->bss
, cwork
->ssid
) ||
849 wpas_network_disabled(wpa_s
, cwork
->ssid
)) {
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
);
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);
859 sme_send_authentication(wpa_s
, cwork
->bss
, cwork
->ssid
, 1);
863 void sme_authenticate(struct wpa_supplicant
*wpa_s
,
864 struct wpa_bss
*bss
, struct wpa_ssid
*ssid
)
866 struct wpa_connect_work
*cwork
;
868 if (bss
== NULL
|| ssid
== NULL
)
870 if (wpa_s
->connect_work
) {
871 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Reject sme_authenticate() call since connect_work exist");
875 if (radio_work_pending(wpa_s
, "sme-connect")) {
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.
881 wpa_dbg(wpa_s
, MSG_DEBUG
,
882 "SME: Remove previous pending sme-connect");
883 radio_remove_works(wpa_s
, "sme-connect", 0);
886 wpas_abort_ongoing_scan(wpa_s
);
888 cwork
= os_zalloc(sizeof(*cwork
));
896 wpa_s
->sme
.sae
.state
= SAE_NOTHING
;
897 wpa_s
->sme
.sae
.send_confirm
= 0;
898 wpa_s
->sme
.sae_group_index
= 0;
899 #endif /* CONFIG_SAE */
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
);
909 static 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
)
914 struct ieee80211_mgmt
*resp
;
916 resp
= wpabuf_put(buf
, offsetof(struct ieee80211_mgmt
,
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
);
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
);
929 wpabuf_put_buf(buf
, params
);
935 static void sme_external_auth_send_sae_commit(struct wpa_supplicant
*wpa_s
,
937 struct wpa_ssid
*ssid
)
939 struct wpabuf
*resp
, *buf
;
941 resp
= sme_auth_build_sae_commit(wpa_s
, ssid
, bssid
, 1, 0);
945 wpa_s
->sme
.sae
.state
= SAE_COMMITTED
;
946 buf
= wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN
+ wpabuf_len(resp
));
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);
961 static void sme_send_external_auth_status(struct wpa_supplicant
*wpa_s
,
964 struct external_auth params
;
966 os_memset(¶ms
, 0, sizeof(params
));
967 params
.status
= status
;
968 params
.ssid
= wpa_s
->sme
.ext_auth
.ssid
;
969 params
.ssid_len
= wpa_s
->sme
.ext_auth
.ssid_len
;
970 params
.bssid
= wpa_s
->sme
.ext_auth
.bssid
;
971 wpa_drv_send_external_auth_status(wpa_s
, ¶ms
);
975 static void sme_handle_external_auth_start(struct wpa_supplicant
*wpa_s
,
976 union wpa_event_data
*data
)
978 struct wpa_ssid
*ssid
;
979 size_t ssid_str_len
= data
->external_auth
.ssid_len
;
980 const u8
*ssid_str
= data
->external_auth
.ssid
;
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
&&
986 os_memcmp(ssid_str
, ssid
->ssid
, ssid_str_len
) == 0 &&
987 (ssid
->key_mgmt
& (WPA_KEY_MGMT_SAE
| WPA_KEY_MGMT_FT_SAE
)))
991 sme_external_auth_send_sae_commit(wpa_s
,
992 data
->external_auth
.bssid
,
995 sme_send_external_auth_status(wpa_s
,
996 WLAN_STATUS_UNSPECIFIED_FAILURE
);
1000 static void sme_external_auth_send_sae_confirm(struct wpa_supplicant
*wpa_s
,
1003 struct wpabuf
*resp
, *buf
;
1005 resp
= sme_auth_build_sae_confirm(wpa_s
, 1);
1007 wpa_printf(MSG_DEBUG
, "SAE: Confirm message buf alloc failure");
1011 wpa_s
->sme
.sae
.state
= SAE_CONFIRMED
;
1012 buf
= wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN
+ wpabuf_len(resp
));
1014 wpa_printf(MSG_DEBUG
, "SAE: Auth Confirm buf alloc failure");
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);
1027 void sme_external_auth_trigger(struct wpa_supplicant
*wpa_s
,
1028 union wpa_event_data
*data
)
1030 if (RSN_SELECTOR_GET(&data
->external_auth
.key_mgmt_suite
) !=
1031 RSN_AUTH_KEY_MGMT_SAE
)
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
);
1050 static int sme_sae_auth(struct wpa_supplicant
*wpa_s
, u16 auth_transaction
,
1051 u16 status_code
, const u8
*data
, size_t len
,
1052 int external
, const u8
*sa
)
1056 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: SAE authentication transaction %u "
1057 "status code %u", auth_transaction
, status_code
);
1059 if (auth_transaction
== 1 &&
1060 status_code
== WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ
&&
1061 wpa_s
->sme
.sae
.state
== SAE_COMMITTED
&&
1062 (external
|| wpa_s
->current_bss
) && wpa_s
->current_ssid
) {
1063 int default_groups
[] = { 19, 20, 21, 0 };
1066 groups
= wpa_s
->conf
->sae_groups
;
1067 if (!groups
|| groups
[0] <= 0)
1068 groups
= default_groups
;
1070 if (len
< sizeof(le16
)) {
1071 wpa_dbg(wpa_s
, MSG_DEBUG
,
1072 "SME: Too short SAE anti-clogging token request");
1075 group
= WPA_GET_LE16(data
);
1076 wpa_dbg(wpa_s
, MSG_DEBUG
,
1077 "SME: SAE anti-clogging token requested (group %u)",
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",
1086 wpabuf_free(wpa_s
->sme
.sae_token
);
1087 wpa_s
->sme
.sae_token
= wpabuf_alloc_copy(data
+ sizeof(le16
),
1088 len
- sizeof(le16
));
1090 sme_send_authentication(wpa_s
, wpa_s
->current_bss
,
1091 wpa_s
->current_ssid
, 2);
1093 sme_external_auth_send_sae_commit(
1094 wpa_s
, wpa_s
->sme
.ext_auth
.bssid
,
1095 wpa_s
->current_ssid
);
1099 if (auth_transaction
== 1 &&
1100 status_code
== WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED
&&
1101 wpa_s
->sme
.sae
.state
== SAE_COMMITTED
&&
1102 (external
|| wpa_s
->current_bss
) && wpa_s
->current_ssid
) {
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");
1109 sme_send_authentication(wpa_s
, wpa_s
->current_bss
,
1110 wpa_s
->current_ssid
, 1);
1112 sme_external_auth_send_sae_commit(
1113 wpa_s
, wpa_s
->sme
.ext_auth
.bssid
,
1114 wpa_s
->current_ssid
);
1118 if (auth_transaction
== 1 &&
1119 status_code
== WLAN_STATUS_UNKNOWN_PASSWORD_IDENTIFIER
) {
1120 const u8
*bssid
= sa
? sa
: wpa_s
->pending_bssid
;
1122 wpa_msg(wpa_s
, MSG_INFO
,
1123 WPA_EVENT_SAE_UNKNOWN_PASSWORD_IDENTIFIER MACSTR
,
1128 if (status_code
!= WLAN_STATUS_SUCCESS
)
1131 if (auth_transaction
== 1) {
1134 groups
= wpa_s
->conf
->sae_groups
;
1136 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME SAE commit");
1137 if ((!external
&& wpa_s
->current_bss
== NULL
) ||
1138 wpa_s
->current_ssid
== NULL
)
1140 if (wpa_s
->sme
.sae
.state
!= SAE_COMMITTED
)
1142 if (groups
&& groups
[0] <= 0)
1144 res
= sae_parse_commit(&wpa_s
->sme
.sae
, data
, len
, NULL
, NULL
,
1146 if (res
== SAE_SILENTLY_DISCARD
) {
1147 wpa_printf(MSG_DEBUG
,
1148 "SAE: Drop commit message due to reflection attack");
1151 if (res
!= WLAN_STATUS_SUCCESS
)
1154 if (sae_process_commit(&wpa_s
->sme
.sae
) < 0) {
1155 wpa_printf(MSG_DEBUG
, "SAE: Failed to process peer "
1160 wpabuf_free(wpa_s
->sme
.sae_token
);
1161 wpa_s
->sme
.sae_token
= NULL
;
1163 sme_send_authentication(wpa_s
, wpa_s
->current_bss
,
1164 wpa_s
->current_ssid
, 0);
1166 sme_external_auth_send_sae_confirm(wpa_s
, sa
);
1168 } else if (auth_transaction
== 2) {
1169 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME SAE confirm");
1170 if (wpa_s
->sme
.sae
.state
!= SAE_CONFIRMED
)
1172 if (sae_check_confirm(&wpa_s
->sme
.sae
, data
, len
) < 0)
1174 wpa_s
->sme
.sae
.state
= SAE_ACCEPTED
;
1175 sae_clear_temp_data(&wpa_s
->sme
.sae
);
1178 /* Report success to driver */
1179 sme_send_external_auth_status(wpa_s
,
1180 WLAN_STATUS_SUCCESS
);
1190 void sme_external_auth_mgmt_rx(struct wpa_supplicant
*wpa_s
,
1191 const u8
*auth_frame
, size_t len
)
1193 const struct ieee80211_mgmt
*header
;
1196 header
= (const struct ieee80211_mgmt
*) auth_frame
;
1197 auth_length
= IEEE80211_HDRLEN
+ sizeof(header
->u
.auth
);
1199 if (len
< auth_length
) {
1200 /* Notify failure to the driver */
1201 sme_send_external_auth_status(wpa_s
,
1202 WLAN_STATUS_UNSPECIFIED_FAILURE
);
1206 if (le_to_host16(header
->u
.auth
.auth_alg
) == WLAN_AUTH_SAE
) {
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
);
1215 /* Notify failure to the driver */
1216 sme_send_external_auth_status(
1217 wpa_s
, WLAN_STATUS_UNSPECIFIED_FAILURE
);
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
);
1230 #endif /* CONFIG_SAE */
1233 void sme_event_auth(struct wpa_supplicant
*wpa_s
, union wpa_event_data
*data
)
1235 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
1238 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Ignore authentication event "
1239 "when network is not selected");
1243 if (wpa_s
->wpa_state
!= WPA_AUTHENTICATING
) {
1244 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Ignore authentication event "
1245 "when not in authenticating state");
1249 if (os_memcmp(wpa_s
->pending_bssid
, data
->auth
.peer
, ETH_ALEN
) != 0) {
1250 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Ignore authentication with "
1251 "unexpected peer " MACSTR
,
1252 MAC2STR(data
->auth
.peer
));
1256 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Authentication response: peer=" MACSTR
1257 " auth_type=%d auth_transaction=%d status_code=%d",
1258 MAC2STR(data
->auth
.peer
), data
->auth
.auth_type
,
1259 data
->auth
.auth_transaction
, data
->auth
.status_code
);
1260 wpa_hexdump(MSG_MSGDUMP
, "SME: Authentication response IEs",
1261 data
->auth
.ies
, data
->auth
.ies_len
);
1263 eloop_cancel_timeout(sme_auth_timer
, wpa_s
, NULL
);
1266 if (data
->auth
.auth_type
== WLAN_AUTH_SAE
) {
1268 res
= sme_sae_auth(wpa_s
, data
->auth
.auth_transaction
,
1269 data
->auth
.status_code
, data
->auth
.ies
,
1270 data
->auth
.ies_len
, 0, NULL
);
1272 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1273 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
1279 wpa_printf(MSG_DEBUG
, "SME: SAE completed - setting PMK for "
1281 wpa_sm_set_pmk(wpa_s
->wpa
, wpa_s
->sme
.sae
.pmk
, PMK_LEN
,
1282 wpa_s
->sme
.sae
.pmkid
, wpa_s
->pending_bssid
);
1284 #endif /* CONFIG_SAE */
1286 if (data
->auth
.status_code
!= WLAN_STATUS_SUCCESS
) {
1287 char *ie_txt
= NULL
;
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
);
1293 wpa_snprintf_hex(ie_txt
, buflen
, data
->auth
.ies
,
1294 data
->auth
.ies_len
);
1297 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_AUTH_REJECT MACSTR
1298 " auth_type=%u auth_transaction=%u status_code=%u%s%s",
1299 MAC2STR(data
->auth
.peer
), data
->auth
.auth_type
,
1300 data
->auth
.auth_transaction
, data
->auth
.status_code
,
1301 ie_txt
? " ie=" : "",
1302 ie_txt
? ie_txt
: "");
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 */
1311 if (data
->auth
.status_code
!=
1312 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG
||
1313 wpa_s
->sme
.auth_alg
== data
->auth
.auth_type
||
1314 wpa_s
->current_ssid
->auth_alg
== WPA_AUTH_ALG_LEAP
) {
1315 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1316 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
1320 wpas_connect_work_done(wpa_s
);
1322 switch (data
->auth
.auth_type
) {
1323 case WLAN_AUTH_OPEN
:
1324 wpa_s
->current_ssid
->auth_alg
= WPA_AUTH_ALG_SHARED
;
1326 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Trying SHARED auth");
1327 wpa_supplicant_associate(wpa_s
, wpa_s
->current_bss
,
1328 wpa_s
->current_ssid
);
1331 case WLAN_AUTH_SHARED_KEY
:
1332 wpa_s
->current_ssid
->auth_alg
= WPA_AUTH_ALG_LEAP
;
1334 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Trying LEAP auth");
1335 wpa_supplicant_associate(wpa_s
, wpa_s
->current_bss
,
1336 wpa_s
->current_ssid
);
1344 #ifdef CONFIG_IEEE80211R
1345 if (data
->auth
.auth_type
== WLAN_AUTH_FT
) {
1346 const u8
*ric_ies
= NULL
;
1347 size_t ric_ies_len
= 0;
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
);
1353 if (wpa_ft_process_response(wpa_s
->wpa
, data
->auth
.ies
,
1354 data
->auth
.ies_len
, 0,
1356 ric_ies
, ric_ies_len
) < 0) {
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="
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
);
1369 #endif /* CONFIG_IEEE80211R */
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
;
1376 expect_auth_type
= wpa_s
->sme
.auth_alg
==
1377 WPA_AUTH_ALG_FILS_SK_PFS
? WLAN_AUTH_FILS_SK_PFS
:
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="
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
);
1393 if (fils_process_auth(wpa_s
->wpa
, wpa_s
->pending_bssid
,
1394 data
->auth
.ies
, data
->auth
.ies_len
) < 0) {
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="
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
);
1407 #endif /* CONFIG_FILS */
1409 sme_associate(wpa_s
, ssid
->mode
, data
->auth
.peer
,
1410 data
->auth
.auth_type
);
1414 #ifdef CONFIG_IEEE80211R
1415 static void remove_ie(u8
*buf
, size_t *len
, u8 eid
)
1417 u8
*pos
, *next
, *end
;
1419 pos
= (u8
*) get_ie(buf
, *len
, eid
);
1421 next
= pos
+ 2 + pos
[1];
1424 os_memmove(pos
, next
, end
- next
);
1427 #endif /* CONFIG_IEEE80211R */
1430 void sme_associate(struct wpa_supplicant
*wpa_s
, enum wpas_mode mode
,
1431 const u8
*bssid
, u16 auth_type
)
1433 struct wpa_driver_associate_params params
;
1434 struct ieee802_11_elems elems
;
1436 u8 nonces
[2 * FILS_NONCE_LEN
];
1437 #endif /* CONFIG_FILS */
1438 #ifdef CONFIG_HT_OVERRIDES
1439 struct ieee80211_ht_capabilities htcaps
;
1440 struct ieee80211_ht_capabilities htcaps_mask
;
1441 #endif /* CONFIG_HT_OVERRIDES */
1442 #ifdef CONFIG_VHT_OVERRIDES
1443 struct ieee80211_vht_capabilities vhtcaps
;
1444 struct ieee80211_vht_capabilities vhtcaps_mask
;
1445 #endif /* CONFIG_VHT_OVERRIDES */
1447 os_memset(¶ms
, 0, sizeof(params
));
1450 if (auth_type
== WLAN_AUTH_FILS_SK
||
1451 auth_type
== WLAN_AUTH_FILS_SK_PFS
) {
1453 const u8
*snonce
, *anonce
;
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
;
1459 dl_list_for_each(req
, &wpa_s
->fils_hlp_req
, struct fils_hlp_req
,
1461 hlp
[num_hlp
] = wpabuf_alloc(2 * ETH_ALEN
+ 6 +
1462 wpabuf_len(req
->pkt
));
1465 wpabuf_put_data(hlp
[num_hlp
], req
->dst
, ETH_ALEN
);
1466 wpabuf_put_data(hlp
[num_hlp
], wpa_s
->own_addr
,
1468 wpabuf_put_data(hlp
[num_hlp
],
1469 "\xaa\xaa\x03\x00\x00\x00", 6);
1470 wpabuf_put_buf(hlp
[num_hlp
], req
->pkt
);
1472 if (num_hlp
>= max_hlp
)
1476 buf
= fils_build_assoc_req(wpa_s
->wpa
, ¶ms
.fils_kek
,
1477 ¶ms
.fils_kek_len
, &snonce
,
1479 (const struct wpabuf
**) hlp
,
1481 for (i
= 0; i
< num_hlp
; i
++)
1482 wpabuf_free(hlp
[i
]);
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
,
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
);
1508 #endif /* CONFIG_IEEE80211R */
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");
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
);
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
);
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
);
1530 #endif /* CONFIG_FILS */
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");
1538 #endif /* CONFIG_TESTING_OPTIONS */
1539 if (auth_type
== WLAN_AUTH_OPEN
&&
1540 wpa_s
->key_mgmt
== WPA_KEY_MGMT_OWE
) {
1541 struct wpabuf
*owe_ie
;
1544 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
->owe_group
) {
1545 group
= wpa_s
->current_ssid
->owe_group
;
1546 } else if (wpa_s
->assoc_status_code
==
1547 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED
) {
1548 if (wpa_s
->last_owe_group
== 19)
1550 else if (wpa_s
->last_owe_group
== 20)
1553 group
= OWE_DH_GROUP
;
1555 group
= OWE_DH_GROUP
;
1558 wpa_s
->last_owe_group
= group
;
1559 wpa_printf(MSG_DEBUG
, "OWE: Try to use group %u", group
);
1560 owe_ie
= owe_build_assoc_req(wpa_s
->wpa
, group
);
1562 wpa_printf(MSG_ERROR
,
1563 "OWE: Failed to build IE for Association Request frame");
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
);
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
);
1578 #endif /* CONFIG_OWE */
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
;
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 */
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
;
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
);
1608 #endif /* CONFIG_DPP2 */
1610 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
->multi_ap_backhaul_sta
) {
1611 size_t multi_ap_ie_len
;
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");
1623 wpa_s
->sme
.assoc_req_ie_len
+= multi_ap_ie_len
;
1626 params
.bssid
= bssid
;
1627 params
.ssid
= wpa_s
->sme
.ssid
;
1628 params
.ssid_len
= wpa_s
->sme
.ssid_len
;
1629 params
.freq
.freq
= wpa_s
->sme
.freq
;
1630 params
.bg_scan_period
= wpa_s
->current_ssid
?
1631 wpa_s
->current_ssid
->bg_scan_period
: -1;
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
;
1635 wpa_hexdump(MSG_DEBUG
, "SME: Association Request IEs",
1636 params
.wpa_ie
, params
.wpa_ie_len
);
1637 params
.pairwise_suite
= wpa_s
->pairwise_cipher
;
1638 params
.group_suite
= wpa_s
->group_cipher
;
1639 params
.mgmt_group_suite
= wpa_s
->mgmt_group_cipher
;
1640 params
.key_mgmt_suite
= wpa_s
->key_mgmt
;
1641 params
.wpa_proto
= wpa_s
->wpa_proto
;
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
, ¶ms
);
1648 #endif /* CONFIG_HT_OVERRIDES */
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
, ¶ms
);
1655 #endif /* CONFIG_VHT_OVERRIDES */
1656 #ifdef CONFIG_IEEE80211R
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");
1668 params
.wpa_ie
= wpa_s
->sme
.ft_ies
;
1669 params
.wpa_ie_len
= wpa_s
->sme
.ft_ies_len
;
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
;
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
,
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
);
1690 /* Need to remove RM Enabled Capabilities element as
1691 * well temporarily, so that it can be placed between
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
);
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");
1711 os_memmove(wpa_s
->sme
.assoc_req_ie
+ wpa_s
->sme
.ft_ies_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]);
1724 os_memcpy(wpos
, rm_en_dup
, rm_en_len
);
1728 os_memcpy(wpos
, pos
, end
- pos
);
1729 wpa_s
->sme
.assoc_req_ie_len
+= wpa_s
->sme
.ft_ies_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
);
1737 #endif /* CONFIG_IEEE80211R */
1739 params
.mgmt_frame_protection
= wpa_s
->sme
.mfp
;
1740 params
.rrm_used
= wpa_s
->rrm
.rrm_used
;
1741 if (wpa_s
->sme
.prev_bssid_set
)
1742 params
.prev_bssid
= wpa_s
->sme
.prev_bssid
;
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
) : "",
1749 wpa_supplicant_set_state(wpa_s
, WPA_ASSOCIATING
);
1751 if (params
.wpa_ie
== NULL
||
1752 ieee802_11_parse_elems(params
.wpa_ie
, params
.wpa_ie_len
, &elems
, 0)
1754 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Could not parse own IEs?!");
1755 os_memset(&elems
, 0, sizeof(elems
));
1758 params
.wpa_proto
= WPA_PROTO_RSN
;
1759 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, elems
.rsn_ie
- 2,
1760 elems
.rsn_ie_len
+ 2);
1761 } else if (elems
.wpa_ie
) {
1762 params
.wpa_proto
= WPA_PROTO_WPA
;
1763 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, elems
.wpa_ie
- 2,
1764 elems
.wpa_ie_len
+ 2);
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);
1770 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, NULL
, 0);
1771 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
->p2p_group
)
1774 if (wpa_s
->p2pdev
->set_sta_uapsd
)
1775 params
.uapsd
= wpa_s
->p2pdev
->sta_uapsd
;
1779 if (wpa_drv_associate(wpa_s
, ¶ms
) < 0) {
1780 wpa_msg(wpa_s
, MSG_INFO
, "SME: Association request to the "
1782 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1783 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
1784 os_memset(wpa_s
->pending_bssid
, 0, ETH_ALEN
);
1788 eloop_register_timeout(SME_ASSOC_TIMEOUT
, 0, sme_assoc_timer
, wpa_s
,
1791 #ifdef CONFIG_TESTING_OPTIONS
1792 wpabuf_free(wpa_s
->last_assoc_req_wpa_ie
);
1793 wpa_s
->last_assoc_req_wpa_ie
= NULL
;
1795 wpa_s
->last_assoc_req_wpa_ie
=
1796 wpabuf_alloc_copy(params
.wpa_ie
, params
.wpa_ie_len
);
1797 #endif /* CONFIG_TESTING_OPTIONS */
1801 int sme_update_ft_ies(struct wpa_supplicant
*wpa_s
, const u8
*md
,
1802 const u8
*ies
, size_t ies_len
)
1804 if (md
== NULL
|| ies
== NULL
) {
1805 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Remove mobility domain");
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;
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
);
1816 wpa_s
->sme
.ft_ies
= os_memdup(ies
, ies_len
);
1817 if (wpa_s
->sme
.ft_ies
== NULL
)
1819 wpa_s
->sme
.ft_ies_len
= ies_len
;
1824 static void sme_deauth(struct wpa_supplicant
*wpa_s
)
1828 bssid_changed
= !is_zero_ether_addr(wpa_s
->bssid
);
1830 if (wpa_drv_deauthenticate(wpa_s
, wpa_s
->pending_bssid
,
1831 WLAN_REASON_DEAUTH_LEAVING
) < 0) {
1832 wpa_msg(wpa_s
, MSG_INFO
, "SME: Deauth request to the driver "
1835 wpa_s
->sme
.prev_bssid_set
= 0;
1837 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1838 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
1839 os_memset(wpa_s
->bssid
, 0, ETH_ALEN
);
1840 os_memset(wpa_s
->pending_bssid
, 0, ETH_ALEN
);
1842 wpas_notify_bssid_changed(wpa_s
);
1846 void sme_event_assoc_reject(struct wpa_supplicant
*wpa_s
,
1847 union wpa_event_data
*data
)
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
);
1853 eloop_cancel_timeout(sme_assoc_timer
, wpa_s
, NULL
);
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
;
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
);
1874 #endif /* CONFIG_SAE */
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.
1887 void sme_event_auth_timed_out(struct wpa_supplicant
*wpa_s
,
1888 union wpa_event_data
*data
)
1890 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Authentication timed out");
1891 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1892 wpa_supplicant_mark_disassoc(wpa_s
);
1896 void sme_event_assoc_timed_out(struct wpa_supplicant
*wpa_s
,
1897 union wpa_event_data
*data
)
1899 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Association timed out");
1900 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1901 wpa_supplicant_mark_disassoc(wpa_s
);
1905 void sme_event_disassoc(struct wpa_supplicant
*wpa_s
,
1906 struct disassoc_info
*info
)
1908 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Disassociation event received");
1909 if (wpa_s
->sme
.prev_bssid_set
) {
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.
1916 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Deauthenticate to clear "
1918 wpa_drv_deauthenticate(wpa_s
, wpa_s
->sme
.prev_bssid
,
1919 WLAN_REASON_DEAUTH_LEAVING
);
1924 static void sme_auth_timer(void *eloop_ctx
, void *timeout_ctx
)
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");
1934 static void sme_assoc_timer(void *eloop_ctx
, void *timeout_ctx
)
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");
1944 void sme_state_changed(struct wpa_supplicant
*wpa_s
)
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
);
1954 void sme_disassoc_while_authenticating(struct wpa_supplicant
*wpa_s
,
1955 const u8
*prev_pending_bssid
)
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.
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
);
1968 * Re-arm authentication timer in case auth fails for whatever reason.
1970 eloop_cancel_timeout(sme_auth_timer
, wpa_s
, NULL
);
1971 eloop_register_timeout(SME_AUTH_TIMEOUT
, 0, sme_auth_timer
, wpa_s
,
1976 void sme_clear_on_disassoc(struct wpa_supplicant
*wpa_s
)
1978 wpa_s
->sme
.prev_bssid_set
= 0;
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
1985 if (wpa_s
->sme
.ft_ies
|| wpa_s
->sme
.ft_used
)
1986 sme_update_ft_ies(wpa_s
, NULL
, NULL
, 0);
1987 #endif /* CONFIG_IEEE80211R */
1991 void sme_deinit(struct wpa_supplicant
*wpa_s
)
1993 os_free(wpa_s
->sme
.ft_ies
);
1994 wpa_s
->sme
.ft_ies
= NULL
;
1995 wpa_s
->sme
.ft_ies_len
= 0;
1996 #ifdef CONFIG_IEEE80211W
1997 sme_stop_sa_query(wpa_s
);
1998 #endif /* CONFIG_IEEE80211W */
1999 sme_clear_on_disassoc(wpa_s
);
2001 eloop_cancel_timeout(sme_assoc_timer
, wpa_s
, NULL
);
2002 eloop_cancel_timeout(sme_auth_timer
, wpa_s
, NULL
);
2003 eloop_cancel_timeout(sme_obss_scan_timeout
, wpa_s
, NULL
);
2007 static void sme_send_2040_bss_coex(struct wpa_supplicant
*wpa_s
,
2008 const u8
*chan_list
, u8 num_channels
,
2011 struct ieee80211_2040_bss_coex_ie
*bc_ie
;
2012 struct ieee80211_2040_intol_chan_report
*ic_report
;
2015 wpa_printf(MSG_DEBUG
, "SME: Send 20/40 BSS Coexistence to " MACSTR
2016 " (num_channels=%u num_intol=%u)",
2017 MAC2STR(wpa_s
->bssid
), num_channels
, num_intol
);
2018 wpa_hexdump(MSG_DEBUG
, "SME: 20/40 BSS Intolerant Channels",
2019 chan_list
, num_channels
);
2021 buf
= wpabuf_alloc(2 + /* action.category + action_code */
2022 sizeof(struct ieee80211_2040_bss_coex_ie
) +
2023 sizeof(struct ieee80211_2040_intol_chan_report
) +
2028 wpabuf_put_u8(buf
, WLAN_ACTION_PUBLIC
);
2029 wpabuf_put_u8(buf
, WLAN_PA_20_40_BSS_COEX
);
2031 bc_ie
= wpabuf_put(buf
, sizeof(*bc_ie
));
2032 bc_ie
->element_id
= WLAN_EID_20_40_BSS_COEXISTENCE
;
2035 bc_ie
->coex_param
|= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ
;
2037 if (num_channels
> 0) {
2038 ic_report
= wpabuf_put(buf
, sizeof(*ic_report
));
2039 ic_report
->element_id
= WLAN_EID_20_40_BSS_INTOLERANT
;
2040 ic_report
->length
= num_channels
+ 1;
2041 ic_report
->op_class
= 0;
2042 os_memcpy(wpabuf_put(buf
, num_channels
), chan_list
,
2046 if (wpa_drv_send_action(wpa_s
, wpa_s
->assoc_freq
, 0, wpa_s
->bssid
,
2047 wpa_s
->own_addr
, wpa_s
->bssid
,
2048 wpabuf_head(buf
), wpabuf_len(buf
), 0) < 0) {
2049 wpa_msg(wpa_s
, MSG_INFO
,
2050 "SME: Failed to send 20/40 BSS Coexistence frame");
2057 int sme_proc_obss_scan(struct wpa_supplicant
*wpa_s
)
2059 struct wpa_bss
*bss
;
2062 u8 chan_list
[P2P_MAX_CHANNELS
], channel
;
2063 u8 num_channels
= 0, num_intol
= 0, i
;
2065 if (!wpa_s
->sme
.sched_obss_scan
)
2068 wpa_s
->sme
.sched_obss_scan
= 0;
2069 if (!wpa_s
->current_bss
|| wpa_s
->wpa_state
!= WPA_COMPLETED
)
2073 * Check whether AP uses regulatory triplet or channel triplet in
2074 * country info. Right now the operating class of the BSS channel
2075 * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
2076 * based on the assumption that operating class triplet is not used in
2077 * beacon frame. If the First Channel Number/Operating Extension
2078 * Identifier octet has a positive integer value of 201 or greater,
2079 * then its operating class triplet.
2081 * TODO: If Supported Operating Classes element is present in beacon
2082 * frame, have to lookup operating class in Annex E and fill them in
2085 ie
= wpa_bss_get_ie(wpa_s
->current_bss
, WLAN_EID_COUNTRY
);
2086 if (ie
&& (ie
[1] >= 6) && (ie
[5] >= 201))
2089 os_memset(chan_list
, 0, sizeof(chan_list
));
2091 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2092 /* Skip other band bss */
2093 enum hostapd_hw_mode mode
;
2094 mode
= ieee80211_freq_to_chan(bss
->freq
, &channel
);
2095 if (mode
!= HOSTAPD_MODE_IEEE80211G
&&
2096 mode
!= HOSTAPD_MODE_IEEE80211B
)
2099 ie
= wpa_bss_get_ie(bss
, WLAN_EID_HT_CAP
);
2100 ht_cap
= (ie
&& (ie
[1] == 26)) ? WPA_GET_LE16(ie
+ 2) : 0;
2101 wpa_printf(MSG_DEBUG
, "SME OBSS scan BSS " MACSTR
2102 " freq=%u chan=%u ht_cap=0x%x",
2103 MAC2STR(bss
->bssid
), bss
->freq
, channel
, ht_cap
);
2105 if (!ht_cap
|| (ht_cap
& HT_CAP_INFO_40MHZ_INTOLERANT
)) {
2106 if (ht_cap
& HT_CAP_INFO_40MHZ_INTOLERANT
)
2109 /* Check whether the channel is already considered */
2110 for (i
= 0; i
< num_channels
; i
++) {
2111 if (channel
== chan_list
[i
])
2114 if (i
!= num_channels
)
2117 chan_list
[num_channels
++] = channel
;
2121 sme_send_2040_bss_coex(wpa_s
, chan_list
, num_channels
, num_intol
);
2126 static void wpa_obss_scan_freqs_list(struct wpa_supplicant
*wpa_s
,
2127 struct wpa_driver_scan_params
*params
)
2129 /* Include only affected channels */
2130 struct hostapd_hw_modes
*mode
;
2134 mode
= get_mode(wpa_s
->hw
.modes
, wpa_s
->hw
.num_modes
,
2135 HOSTAPD_MODE_IEEE80211G
);
2137 /* No channels supported in this band - use empty list */
2138 params
->freqs
= os_zalloc(sizeof(int));
2142 if (wpa_s
->sme
.ht_sec_chan
== HT_SEC_CHAN_UNKNOWN
&&
2143 wpa_s
->current_bss
) {
2146 ie
= wpa_bss_get_ie(wpa_s
->current_bss
, WLAN_EID_HT_OPERATION
);
2147 if (ie
&& ie
[1] >= 2) {
2150 o
= ie
[3] & HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK
;
2151 if (o
== HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE
)
2152 wpa_s
->sme
.ht_sec_chan
= HT_SEC_CHAN_ABOVE
;
2153 else if (o
== HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW
)
2154 wpa_s
->sme
.ht_sec_chan
= HT_SEC_CHAN_BELOW
;
2158 start
= wpa_s
->assoc_freq
- 10;
2159 end
= wpa_s
->assoc_freq
+ 10;
2160 switch (wpa_s
->sme
.ht_sec_chan
) {
2161 case HT_SEC_CHAN_UNKNOWN
:
2162 /* HT40+ possible on channels 1..9 */
2163 if (wpa_s
->assoc_freq
<= 2452)
2165 /* HT40- possible on channels 5-13 */
2166 if (wpa_s
->assoc_freq
>= 2432)
2169 case HT_SEC_CHAN_ABOVE
:
2172 case HT_SEC_CHAN_BELOW
:
2176 wpa_printf(MSG_DEBUG
,
2177 "OBSS: assoc_freq %d possible affected range %d-%d",
2178 wpa_s
->assoc_freq
, start
, end
);
2180 params
->freqs
= os_calloc(mode
->num_channels
+ 1, sizeof(int));
2181 if (params
->freqs
== NULL
)
2183 for (count
= 0, i
= 0; i
< mode
->num_channels
; i
++) {
2186 if (mode
->channels
[i
].flag
& HOSTAPD_CHAN_DISABLED
)
2188 freq
= mode
->channels
[i
].freq
;
2189 if (freq
- 10 >= end
|| freq
+ 10 <= start
)
2190 continue; /* not affected */
2191 params
->freqs
[count
++] = freq
;
2196 static void sme_obss_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
2198 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
2199 struct wpa_driver_scan_params params
;
2201 if (!wpa_s
->current_bss
) {
2202 wpa_printf(MSG_DEBUG
, "SME OBSS: Ignore scan request");
2206 os_memset(¶ms
, 0, sizeof(params
));
2207 wpa_obss_scan_freqs_list(wpa_s
, ¶ms
);
2208 params
.low_priority
= 1;
2209 wpa_printf(MSG_DEBUG
, "SME OBSS: Request an OBSS scan");
2211 if (wpa_supplicant_trigger_scan(wpa_s
, ¶ms
))
2212 wpa_printf(MSG_DEBUG
, "SME OBSS: Failed to trigger scan");
2214 wpa_s
->sme
.sched_obss_scan
= 1;
2215 os_free(params
.freqs
);
2217 eloop_register_timeout(wpa_s
->sme
.obss_scan_int
, 0,
2218 sme_obss_scan_timeout
, wpa_s
, NULL
);
2222 void sme_sched_obss_scan(struct wpa_supplicant
*wpa_s
, int enable
)
2225 struct wpa_bss
*bss
= wpa_s
->current_bss
;
2226 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
2227 struct hostapd_hw_modes
*hw_mode
= NULL
;
2230 eloop_cancel_timeout(sme_obss_scan_timeout
, wpa_s
, NULL
);
2231 wpa_s
->sme
.sched_obss_scan
= 0;
2232 wpa_s
->sme
.ht_sec_chan
= HT_SEC_CHAN_UNKNOWN
;
2237 * Schedule OBSS scan if driver is using station SME in wpa_supplicant
2238 * or it expects OBSS scan to be performed by wpa_supplicant.
2240 if (!((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SME
) ||
2241 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_OBSS_SCAN
)) ||
2242 ssid
== NULL
|| ssid
->mode
!= IEEE80211_MODE_INFRA
)
2245 if (!wpa_s
->hw
.modes
)
2248 /* only HT caps in 11g mode are relevant */
2249 for (i
= 0; i
< wpa_s
->hw
.num_modes
; i
++) {
2250 hw_mode
= &wpa_s
->hw
.modes
[i
];
2251 if (hw_mode
->mode
== HOSTAPD_MODE_IEEE80211G
)
2255 /* Driver does not support HT40 for 11g or doesn't have 11g. */
2256 if (i
== wpa_s
->hw
.num_modes
|| !hw_mode
||
2257 !(hw_mode
->ht_capab
& HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET
))
2260 if (bss
== NULL
|| bss
->freq
< 2400 || bss
->freq
> 2500)
2261 return; /* Not associated on 2.4 GHz band */
2263 /* Check whether AP supports HT40 */
2264 ie
= wpa_bss_get_ie(wpa_s
->current_bss
, WLAN_EID_HT_CAP
);
2265 if (!ie
|| ie
[1] < 2 ||
2266 !(WPA_GET_LE16(ie
+ 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET
))
2267 return; /* AP does not support HT40 */
2269 ie
= wpa_bss_get_ie(wpa_s
->current_bss
,
2270 WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS
);
2271 if (!ie
|| ie
[1] < 14)
2272 return; /* AP does not request OBSS scans */
2274 wpa_s
->sme
.obss_scan_int
= WPA_GET_LE16(ie
+ 6);
2275 if (wpa_s
->sme
.obss_scan_int
< 10) {
2276 wpa_printf(MSG_DEBUG
, "SME: Invalid OBSS Scan Interval %u "
2277 "replaced with the minimum 10 sec",
2278 wpa_s
->sme
.obss_scan_int
);
2279 wpa_s
->sme
.obss_scan_int
= 10;
2281 wpa_printf(MSG_DEBUG
, "SME: OBSS Scan Interval %u sec",
2282 wpa_s
->sme
.obss_scan_int
);
2283 eloop_register_timeout(wpa_s
->sme
.obss_scan_int
, 0,
2284 sme_obss_scan_timeout
, wpa_s
, NULL
);
2288 #ifdef CONFIG_IEEE80211W
2290 static const unsigned int sa_query_max_timeout
= 1000;
2291 static const unsigned int sa_query_retry_timeout
= 201;
2292 static const unsigned int sa_query_ch_switch_max_delay
= 5000; /* in usec */
2294 static int sme_check_sa_query_timeout(struct wpa_supplicant
*wpa_s
)
2297 struct os_reltime now
, passed
;
2298 os_get_reltime(&now
);
2299 os_reltime_sub(&now
, &wpa_s
->sme
.sa_query_start
, &passed
);
2300 tu
= (passed
.sec
* 1000000 + passed
.usec
) / 1024;
2301 if (sa_query_max_timeout
< tu
) {
2302 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: SA Query timed out");
2303 sme_stop_sa_query(wpa_s
);
2304 wpa_supplicant_deauthenticate(
2305 wpa_s
, WLAN_REASON_PREV_AUTH_NOT_VALID
);
2313 static void sme_send_sa_query_req(struct wpa_supplicant
*wpa_s
,
2316 u8 req
[2 + WLAN_SA_QUERY_TR_ID_LEN
+ OCV_OCI_EXTENDED_LEN
];
2317 u8 req_len
= 2 + WLAN_SA_QUERY_TR_ID_LEN
;
2319 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Sending SA Query Request to "
2320 MACSTR
, MAC2STR(wpa_s
->bssid
));
2321 wpa_hexdump(MSG_DEBUG
, "SME: SA Query Transaction ID",
2322 trans_id
, WLAN_SA_QUERY_TR_ID_LEN
);
2323 req
[0] = WLAN_ACTION_SA_QUERY
;
2324 req
[1] = WLAN_SA_QUERY_REQUEST
;
2325 os_memcpy(req
+ 2, trans_id
, WLAN_SA_QUERY_TR_ID_LEN
);
2328 if (wpa_sm_ocv_enabled(wpa_s
->wpa
)) {
2329 struct wpa_channel_info ci
;
2331 if (wpa_drv_channel_info(wpa_s
, &ci
) != 0) {
2332 wpa_printf(MSG_WARNING
,
2333 "Failed to get channel info for OCI element in SA Query Request frame");
2337 if (ocv_insert_extended_oci(&ci
, req
+ req_len
) < 0)
2340 req_len
+= OCV_OCI_EXTENDED_LEN
;
2342 #endif /* CONFIG_OCV */
2344 if (wpa_drv_send_action(wpa_s
, wpa_s
->assoc_freq
, 0, wpa_s
->bssid
,
2345 wpa_s
->own_addr
, wpa_s
->bssid
,
2346 req
, req_len
, 0) < 0)
2347 wpa_msg(wpa_s
, MSG_INFO
, "SME: Failed to send SA Query "
2352 static void sme_sa_query_timer(void *eloop_ctx
, void *timeout_ctx
)
2354 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
2355 unsigned int timeout
, sec
, usec
;
2356 u8
*trans_id
, *nbuf
;
2358 if (wpa_s
->sme
.sa_query_count
> 0 &&
2359 sme_check_sa_query_timeout(wpa_s
))
2362 nbuf
= os_realloc_array(wpa_s
->sme
.sa_query_trans_id
,
2363 wpa_s
->sme
.sa_query_count
+ 1,
2364 WLAN_SA_QUERY_TR_ID_LEN
);
2366 sme_stop_sa_query(wpa_s
);
2369 if (wpa_s
->sme
.sa_query_count
== 0) {
2370 /* Starting a new SA Query procedure */
2371 os_get_reltime(&wpa_s
->sme
.sa_query_start
);
2373 trans_id
= nbuf
+ wpa_s
->sme
.sa_query_count
* WLAN_SA_QUERY_TR_ID_LEN
;
2374 wpa_s
->sme
.sa_query_trans_id
= nbuf
;
2375 wpa_s
->sme
.sa_query_count
++;
2377 if (os_get_random(trans_id
, WLAN_SA_QUERY_TR_ID_LEN
) < 0) {
2378 wpa_printf(MSG_DEBUG
, "Could not generate SA Query ID");
2379 sme_stop_sa_query(wpa_s
);
2383 timeout
= sa_query_retry_timeout
;
2384 sec
= ((timeout
/ 1000) * 1024) / 1000;
2385 usec
= (timeout
% 1000) * 1024;
2386 eloop_register_timeout(sec
, usec
, sme_sa_query_timer
, wpa_s
, NULL
);
2388 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Association SA Query attempt %d",
2389 wpa_s
->sme
.sa_query_count
);
2391 sme_send_sa_query_req(wpa_s
, trans_id
);
2395 static void sme_start_sa_query(struct wpa_supplicant
*wpa_s
)
2397 sme_sa_query_timer(wpa_s
, NULL
);
2401 static void sme_stop_sa_query(struct wpa_supplicant
*wpa_s
)
2403 if (wpa_s
->sme
.sa_query_trans_id
)
2404 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Stop SA Query");
2405 eloop_cancel_timeout(sme_sa_query_timer
, wpa_s
, NULL
);
2406 os_free(wpa_s
->sme
.sa_query_trans_id
);
2407 wpa_s
->sme
.sa_query_trans_id
= NULL
;
2408 wpa_s
->sme
.sa_query_count
= 0;
2412 void sme_event_unprot_disconnect(struct wpa_supplicant
*wpa_s
, const u8
*sa
,
2413 const u8
*da
, u16 reason_code
)
2415 struct wpa_ssid
*ssid
;
2416 struct os_reltime now
;
2418 if (wpa_s
->wpa_state
!= WPA_COMPLETED
)
2420 ssid
= wpa_s
->current_ssid
;
2421 if (wpas_get_ssid_pmf(wpa_s
, ssid
) == NO_MGMT_FRAME_PROTECTION
)
2423 if (os_memcmp(sa
, wpa_s
->bssid
, ETH_ALEN
) != 0)
2425 if (reason_code
!= WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA
&&
2426 reason_code
!= WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA
)
2428 if (wpa_s
->sme
.sa_query_count
> 0)
2431 os_get_reltime(&now
);
2432 if (wpa_s
->sme
.last_unprot_disconnect
.sec
&&
2433 !os_reltime_expired(&now
, &wpa_s
->sme
.last_unprot_disconnect
, 10))
2434 return; /* limit SA Query procedure frequency */
2435 wpa_s
->sme
.last_unprot_disconnect
= now
;
2437 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Unprotected disconnect dropped - "
2438 "possible AP/STA state mismatch - trigger SA Query");
2439 sme_start_sa_query(wpa_s
);
2443 void sme_event_ch_switch(struct wpa_supplicant
*wpa_s
)
2448 if (wpa_s
->wpa_state
!= WPA_COMPLETED
||
2449 !wpa_sm_ocv_enabled(wpa_s
->wpa
))
2452 wpa_dbg(wpa_s
, MSG_DEBUG
,
2453 "SME: Channel switch completed - trigger new SA Query to verify new operating channel");
2454 sme_stop_sa_query(wpa_s
);
2456 if (os_get_random((u8
*) &_rand
, sizeof(_rand
)) < 0)
2457 _rand
= os_random();
2458 usec
= _rand
% (sa_query_ch_switch_max_delay
+ 1);
2459 eloop_register_timeout(0, usec
, sme_sa_query_timer
, wpa_s
, NULL
);
2463 static void sme_process_sa_query_request(struct wpa_supplicant
*wpa_s
,
2464 const u8
*sa
, const u8
*data
,
2467 u8 resp
[2 + WLAN_SA_QUERY_TR_ID_LEN
+ OCV_OCI_EXTENDED_LEN
];
2468 u8 resp_len
= 2 + WLAN_SA_QUERY_TR_ID_LEN
;
2470 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Sending SA Query Response to "
2471 MACSTR
, MAC2STR(wpa_s
->bssid
));
2473 resp
[0] = WLAN_ACTION_SA_QUERY
;
2474 resp
[1] = WLAN_SA_QUERY_RESPONSE
;
2475 os_memcpy(resp
+ 2, data
+ 1, WLAN_SA_QUERY_TR_ID_LEN
);
2478 if (wpa_sm_ocv_enabled(wpa_s
->wpa
)) {
2479 struct wpa_channel_info ci
;
2481 if (wpa_drv_channel_info(wpa_s
, &ci
) != 0) {
2482 wpa_printf(MSG_WARNING
,
2483 "Failed to get channel info for OCI element in SA Query Response frame");
2487 if (ocv_insert_extended_oci(&ci
, resp
+ resp_len
) < 0)
2490 resp_len
+= OCV_OCI_EXTENDED_LEN
;
2492 #endif /* CONFIG_OCV */
2494 if (wpa_drv_send_action(wpa_s
, wpa_s
->assoc_freq
, 0, wpa_s
->bssid
,
2495 wpa_s
->own_addr
, wpa_s
->bssid
,
2496 resp
, resp_len
, 0) < 0)
2497 wpa_msg(wpa_s
, MSG_INFO
,
2498 "SME: Failed to send SA Query Response");
2502 static void sme_process_sa_query_response(struct wpa_supplicant
*wpa_s
,
2503 const u8
*sa
, const u8
*data
,
2508 if (!wpa_s
->sme
.sa_query_trans_id
)
2511 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Received SA Query response from "
2512 MACSTR
" (trans_id %02x%02x)", MAC2STR(sa
), data
[1], data
[2]);
2514 if (os_memcmp(sa
, wpa_s
->bssid
, ETH_ALEN
) != 0)
2517 for (i
= 0; i
< wpa_s
->sme
.sa_query_count
; i
++) {
2518 if (os_memcmp(wpa_s
->sme
.sa_query_trans_id
+
2519 i
* WLAN_SA_QUERY_TR_ID_LEN
,
2520 data
+ 1, WLAN_SA_QUERY_TR_ID_LEN
) == 0)
2524 if (i
>= wpa_s
->sme
.sa_query_count
) {
2525 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: No matching SA Query "
2526 "transaction identifier found");
2530 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Reply to pending SA Query received "
2531 "from " MACSTR
, MAC2STR(sa
));
2532 sme_stop_sa_query(wpa_s
);
2536 void sme_sa_query_rx(struct wpa_supplicant
*wpa_s
, const u8
*sa
,
2537 const u8
*data
, size_t len
)
2539 if (len
< 1 + WLAN_SA_QUERY_TR_ID_LEN
)
2542 wpa_dbg(wpa_s
, MSG_DEBUG
, "SME: Received SA Query frame from "
2543 MACSTR
" (trans_id %02x%02x)", MAC2STR(sa
), data
[1], data
[2]);
2546 if (wpa_sm_ocv_enabled(wpa_s
->wpa
)) {
2547 struct ieee802_11_elems elems
;
2548 struct wpa_channel_info ci
;
2550 if (ieee802_11_parse_elems(data
+ 1 + WLAN_SA_QUERY_TR_ID_LEN
,
2551 len
- 1 - WLAN_SA_QUERY_TR_ID_LEN
,
2552 &elems
, 1) == ParseFailed
) {
2553 wpa_printf(MSG_DEBUG
,
2554 "SA Query: Failed to parse elements");
2558 if (wpa_drv_channel_info(wpa_s
, &ci
) != 0) {
2559 wpa_printf(MSG_WARNING
,
2560 "Failed to get channel info to validate received OCI in SA Query Action frame");
2564 if (ocv_verify_tx_params(elems
.oci
, elems
.oci_len
, &ci
,
2565 channel_width_to_int(ci
.chanwidth
),
2566 ci
.seg1_idx
) != 0) {
2567 wpa_printf(MSG_WARNING
, "%s", ocv_errorstr
);
2571 #endif /* CONFIG_OCV */
2573 if (data
[0] == WLAN_SA_QUERY_REQUEST
)
2574 sme_process_sa_query_request(wpa_s
, sa
, data
, len
);
2575 else if (data
[0] == WLAN_SA_QUERY_RESPONSE
)
2576 sme_process_sa_query_response(wpa_s
, sa
, data
, len
);
2579 #endif /* CONFIG_IEEE80211W */