]> 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
P2P: Move group removal reason to a function parameter
[thirdparty/hostap.git] / wpa_supplicant / sme.c
CommitLineData
c2a04078
JM		 1/*
2 * wpa_supplicant - SME
71024cb2 3 * Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
c2a04078 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
c2a04078
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
7d878ca7 12#include "utils/eloop.h"
90973fb2 13#include "common/ieee802_11_defs.h"
d9a27b04 14#include "common/ieee802_11_common.h"
c2a04078 15#include "eapol_supp/eapol_supp_sm.h"
90973fb2 16#include "common/wpa_common.h"
3acb5005
JM		 17#include "rsn_supp/wpa.h"
18#include "rsn_supp/pmksa_cache.h"
c2a04078
JM		 19#include "config.h"
20#include "wpa_supplicant_i.h"
2d5b792d 21#include "driver_i.h"
c2a04078
JM		 22#include "wpas_glue.h"
23#include "wps_supplicant.h"
5f3a6aa0 24#include "p2p_supplicant.h"
8bac466b 25#include "notify.h"
6fa81a3b 26#include "bss.h"
9ba9fa07 27#include "scan.h"
c2a04078 28#include "sme.h"
cb418324 29#include "hs20_supplicant.h"
c2a04078 30
e29853bb
BG		 31#define SME_AUTH_TIMEOUT 5
32#define SME_ASSOC_TIMEOUT 5
33
34static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx);
35static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx);
c3701c66 36static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx);
e29853bb
BG		 37#ifdef CONFIG_IEEE80211W
38static void sme_stop_sa_query(struct wpa_supplicant *wpa_s);
39#endif /* CONFIG_IEEE80211W */
40
41
c2a04078 42void sme_authenticate(struct wpa_supplicant *wpa_s,
6fa81a3b 43 struct wpa_bss *bss, struct wpa_ssid *ssid)
c2a04078
JM		 44{
45 struct wpa_driver_auth_params params;
8bac466b 46 struct wpa_ssid *old_ssid;
fdbe50ed 47#ifdef CONFIG_IEEE80211R
c2a04078 48 const u8 *ie;
fdbe50ed 49#endif /* CONFIG_IEEE80211R */
c2a04078
JM		 50#ifdef CONFIG_IEEE80211R
51 const u8 *md = NULL;
52#endif /* CONFIG_IEEE80211R */
8bac466b 53 int i, bssid_changed;
c2a04078
JM		 54
55 if (bss == NULL) {
f049052b
BG		 56 wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
57 "the network");
c2a04078
JM		 58 return;
59 }
60
8f770587
JM		 61 wpa_s->current_bss = bss;
62
c2a04078
JM		 63 os_memset(&params, 0, sizeof(params));
64 wpa_s->reassociate = 0;
65
66 params.freq = bss->freq;
67 params.bssid = bss->bssid;
6fa81a3b
JM		 68 params.ssid = bss->ssid;
69 params.ssid_len = bss->ssid_len;
2f4f73b1 70 params.p2p = ssid->p2p_group;
c2a04078 71
62fa124c
JM		 72 if (wpa_s->sme.ssid_len != params.ssid_len ||
73 os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0)
74 wpa_s->sme.prev_bssid_set = 0;
75
c2a04078
JM		 76 wpa_s->sme.freq = params.freq;
77 os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
78 wpa_s->sme.ssid_len = params.ssid_len;
79
abd9fafa 80 params.auth_alg = WPA_AUTH_ALG_OPEN;
c2a04078
JM		 81#ifdef IEEE8021X_EAPOL
82 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
83 if (ssid->leap) {
84 if (ssid->non_leap == 0)
abd9fafa 85 params.auth_alg = WPA_AUTH_ALG_LEAP;
c2a04078 86 else
abd9fafa 87 params.auth_alg |= WPA_AUTH_ALG_LEAP;
c2a04078
JM		 88 }
89 }
90#endif /* IEEE8021X_EAPOL */
f049052b
BG		 91 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
92 params.auth_alg);
c2a04078 93 if (ssid->auth_alg) {
abd9fafa 94 params.auth_alg = ssid->auth_alg;
f049052b
BG		 95 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
96 "0x%x", params.auth_alg);
c2a04078
JM		 97 }
98
a0b2f99b
JM		 99 for (i = 0; i < NUM_WEP_KEYS; i++) {
100 if (ssid->wep_key_len[i])
101 params.wep_key[i] = ssid->wep_key[i];
102 params.wep_key_len[i] = ssid->wep_key_len[i];
103 }
104 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
105
8bac466b 106 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
c2a04078
JM		 107 os_memset(wpa_s->bssid, 0, ETH_ALEN);
108 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
8bac466b
JM		 109 if (bssid_changed)
110 wpas_notify_bssid_changed(wpa_s);
c2a04078 111
f337f0e9
JM		 112 if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
113 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
0bf927a0 114 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
c2a04078
JM		 115 int try_opportunistic;
116 try_opportunistic = ssid->proactive_key_caching &&
117 (ssid->proto & WPA_PROTO_RSN);
118 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
119 wpa_s->current_ssid,
120 try_opportunistic) == 0)
121 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
122 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
123 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
124 wpa_s->sme.assoc_req_ie,
125 &wpa_s->sme.assoc_req_ie_len)) {
f049052b
BG		 126 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
127 "key management and encryption suites");
c2a04078
JM		 128 return;
129 }
0bf927a0 130 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
c2a04078
JM		 131 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
132 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
133 wpa_s->sme.assoc_req_ie,
134 &wpa_s->sme.assoc_req_ie_len)) {
f049052b
BG		 135 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
136 "key management and encryption suites (no "
137 "scan results)");
c2a04078
JM		 138 return;
139 }
140#ifdef CONFIG_WPS
141 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
142 struct wpabuf *wps_ie;
143 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
144 if (wps_ie && wpabuf_len(wps_ie) <=
145 sizeof(wpa_s->sme.assoc_req_ie)) {
146 wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
147 os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
148 wpa_s->sme.assoc_req_ie_len);
149 } else
150 wpa_s->sme.assoc_req_ie_len = 0;
151 wpabuf_free(wps_ie);
152 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
153#endif /* CONFIG_WPS */
154 } else {
155 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
156 wpa_s->sme.assoc_req_ie_len = 0;
157 }
158
159#ifdef CONFIG_IEEE80211R
6fa81a3b 160 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
c2a04078
JM		 161 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
162 md = ie + 2;
e7846b68 163 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
c2a04078
JM		 164 if (md) {
165 /* Prepare for the next transition */
76b7981d 166 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
c2a04078
JM		 167 }
168
0bf927a0 169 if (md && wpa_key_mgmt_ft(ssid->key_mgmt)) {
c2a04078
JM		 170 if (wpa_s->sme.assoc_req_ie_len + 5 <
171 sizeof(wpa_s->sme.assoc_req_ie)) {
172 struct rsn_mdie *mdie;
173 u8 *pos = wpa_s->sme.assoc_req_ie +
174 wpa_s->sme.assoc_req_ie_len;
175 *pos++ = WLAN_EID_MOBILITY_DOMAIN;
176 *pos++ = sizeof(*mdie);
177 mdie = (struct rsn_mdie *) pos;
178 os_memcpy(mdie->mobility_domain, md,
179 MOBILITY_DOMAIN_ID_LEN);
f4ec630d 180 mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
c2a04078
JM		 181 wpa_s->sme.assoc_req_ie_len += 5;
182 }
183
184 if (wpa_s->sme.ft_used &&
0d7b4409
JM		 185 os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 &&
186 wpa_sm_has_ptk(wpa_s->wpa)) {
f049052b
BG		 187 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT "
188 "over-the-air");
abd9fafa 189 params.auth_alg = WPA_AUTH_ALG_FT;
c2a04078
JM		 190 params.ie = wpa_s->sme.ft_ies;
191 params.ie_len = wpa_s->sme.ft_ies_len;
192 }
193 }
194#endif /* CONFIG_IEEE80211R */
195
196#ifdef CONFIG_IEEE80211W
70f8cc8e 197 wpa_s->sme.mfp = ssid->ieee80211w;
f337f0e9 198 if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
6fa81a3b 199 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
c2a04078
JM		 200 struct wpa_ie_data _ie;
201 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
202 _ie.capabilities &
203 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
f049052b
BG		 204 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports "
205 "MFP: require MFP");
c2a04078
JM		 206 wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
207 }
208 }
209#endif /* CONFIG_IEEE80211W */
210
5f3a6aa0
JM		 211#ifdef CONFIG_P2P
212 if (wpa_s->global->p2p) {
213 u8 *pos;
214 size_t len;
215 int res;
5f3a6aa0
JM		 216 pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
217 len = sizeof(wpa_s->sme.assoc_req_ie) -
218 wpa_s->sme.assoc_req_ie_len;
ffad8858
JM		 219 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
220 ssid->p2p_group);
5f3a6aa0
JM		 221 if (res >= 0)
222 wpa_s->sme.assoc_req_ie_len += res;
223 }
224#endif /* CONFIG_P2P */
225
cb418324
JM		 226#ifdef CONFIG_HS20
227 if (wpa_s->conf->hs20) {
228 struct wpabuf *hs20;
229 hs20 = wpabuf_alloc(20);
230 if (hs20) {
231 wpas_hs20_add_indication(hs20);
232 os_memcpy(wpa_s->sme.assoc_req_ie +
233 wpa_s->sme.assoc_req_ie_len,
234 wpabuf_head(hs20), wpabuf_len(hs20));
235 wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20);
236 wpabuf_free(hs20);
237 }
238 }
239#endif /* CONFIG_HS20 */
240
92cbcf91
JM		 241#ifdef CONFIG_INTERWORKING
242 if (wpa_s->conf->interworking) {
243 u8 *pos = wpa_s->sme.assoc_req_ie;
244 if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN)
245 pos += 2 + pos[1];
246 os_memmove(pos + 6, pos,
247 wpa_s->sme.assoc_req_ie_len -
248 (pos - wpa_s->sme.assoc_req_ie));
249 wpa_s->sme.assoc_req_ie_len += 6;
250 *pos++ = WLAN_EID_EXT_CAPAB;
251 *pos++ = 4;
252 *pos++ = 0x00;
253 *pos++ = 0x00;
254 *pos++ = 0x00;
255 *pos++ = 0x80; /* Bit 31 - Interworking */
256 }
257#endif /* CONFIG_INTERWORKING */
258
a4cba8f1 259 wpa_supplicant_cancel_sched_scan(wpa_s);
c2a04078
JM		 260 wpa_supplicant_cancel_scan(wpa_s);
261
f049052b 262 wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR
c2a04078
JM		 263 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
264 wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
265
266 wpa_clear_keys(wpa_s, bss->bssid);
267 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
8bac466b 268 old_ssid = wpa_s->current_ssid;
c2a04078
JM		 269 wpa_s->current_ssid = ssid;
270 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
271 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM		 272 if (old_ssid != wpa_s->current_ssid)
273 wpas_notify_network_changed(wpa_s);
c2a04078 274
62c72d72 275 wpa_s->sme.auth_alg = params.auth_alg;
c2a04078 276 if (wpa_drv_authenticate(wpa_s, &params) < 0) {
f049052b 277 wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
c2a04078 278 "driver failed");
ed57c590 279 wpas_connection_failed(wpa_s, bss->bssid);
1193dc8f 280 wpa_supplicant_mark_disassoc(wpa_s);
c2a04078
JM		 281 return;
282 }
283
e29853bb
BG		 284 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
285 NULL);
c2a04078
JM		 286
287 /*
288 * Association will be started based on the authentication event from
289 * the driver.
290 */
291}
292
293
294void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
295{
c2a04078
JM		 296 struct wpa_ssid *ssid = wpa_s->current_ssid;
297
298 if (ssid == NULL) {
f049052b
BG		 299 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
300 "when network is not selected");
c2a04078
JM		 301 return;
302 }
303
304 if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
f049052b
BG		 305 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
306 "when not in authenticating state");
c2a04078
JM		 307 return;
308 }
309
310 if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
f049052b
BG		 311 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication with "
312 "unexpected peer " MACSTR,
313 MAC2STR(data->auth.peer));
c2a04078
JM		 314 return;
315 }
316
f049052b
BG		 317 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
318 " auth_type=%d status_code=%d",
319 MAC2STR(data->auth.peer), data->auth.auth_type,
320 data->auth.status_code);
c2a04078
JM		 321 wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
322 data->auth.ies, data->auth.ies_len);
323
e29853bb
BG		 324 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
325
c2a04078 326 if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
f049052b
BG		 327 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication failed (status "
328 "code %d)", data->auth.status_code);
cb1583f6
SO		 329
330 if (data->auth.status_code !=
331 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
332 wpa_s->sme.auth_alg == data->auth.auth_type ||
7e6646c7 333 wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
0fb337c1 334 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
c1c02342 335 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
cb1583f6 336 return;
7e6646c7 337 }
cb1583f6
SO		 338
339 switch (data->auth.auth_type) {
340 case WLAN_AUTH_OPEN:
341 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
342
f049052b 343 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying SHARED auth");
cb1583f6
SO		 344 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
345 wpa_s->current_ssid);
346 return;
347
348 case WLAN_AUTH_SHARED_KEY:
349 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_LEAP;
350
f049052b 351 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying LEAP auth");
cb1583f6
SO		 352 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
353 wpa_s->current_ssid);
354 return;
355
356 default:
357 return;
358 }
c2a04078
JM		 359 }
360
361#ifdef CONFIG_IEEE80211R
362 if (data->auth.auth_type == WLAN_AUTH_FT) {
363 union wpa_event_data edata;
364 os_memset(&edata, 0, sizeof(edata));
365 edata.ft_ies.ies = data->auth.ies;
366 edata.ft_ies.ies_len = data->auth.ies_len;
367 os_memcpy(edata.ft_ies.target_ap, data->auth.peer, ETH_ALEN);
368 wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &edata);
369 }
370#endif /* CONFIG_IEEE80211R */
371
71024cb2
JM		 372 sme_associate(wpa_s, ssid->mode, data->auth.peer,
373 data->auth.auth_type);
374}
375
376
377void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
378 const u8 *bssid, u16 auth_type)
379{
380 struct wpa_driver_associate_params params;
d9a27b04 381 struct ieee802_11_elems elems;
80e8a5ee
BG		 382#ifdef CONFIG_HT_OVERRIDES
383 struct ieee80211_ht_capabilities htcaps;
384 struct ieee80211_ht_capabilities htcaps_mask;
385#endif /* CONFIG_HT_OVERRIDES */
71024cb2 386
c2a04078 387 os_memset(&params, 0, sizeof(params));
71024cb2 388 params.bssid = bssid;
c2a04078
JM		 389 params.ssid = wpa_s->sme.ssid;
390 params.ssid_len = wpa_s->sme.ssid_len;
391 params.freq = wpa_s->sme.freq;
1f6c0ab8
BS		 392 params.bg_scan_period = wpa_s->current_ssid ?
393 wpa_s->current_ssid->bg_scan_period : -1;
c2a04078
JM		 394 params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
395 wpa_s->sme.assoc_req_ie : NULL;
396 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
aca01605
JM		 397 params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
398 params.group_suite = cipher_suite2driver(wpa_s->group_cipher);
80e8a5ee
BG		 399#ifdef CONFIG_HT_OVERRIDES
400 os_memset(&htcaps, 0, sizeof(htcaps));
401 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
402 params.htcaps = (u8 *) &htcaps;
403 params.htcaps_mask = (u8 *) &htcaps_mask;
404 wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, &params);
405#endif /* CONFIG_HT_OVERRIDES */
c2a04078 406#ifdef CONFIG_IEEE80211R
71024cb2 407 if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
c2a04078
JM		 408 params.wpa_ie = wpa_s->sme.ft_ies;
409 params.wpa_ie_len = wpa_s->sme.ft_ies_len;
410 }
411#endif /* CONFIG_IEEE80211R */
71024cb2 412 params.mode = mode;
c2a04078 413 params.mgmt_frame_protection = wpa_s->sme.mfp;
62fa124c
JM		 414 if (wpa_s->sme.prev_bssid_set)
415 params.prev_bssid = wpa_s->sme.prev_bssid;
c2a04078
JM		 416
417 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
418 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
419 params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
420 params.freq);
421
422 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
423
9efc3f2a
JM		 424 if (params.wpa_ie == NULL ||
425 ieee802_11_parse_elems(params.wpa_ie, params.wpa_ie_len, &elems, 0)
d9a27b04 426 < 0) {
f049052b 427 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Could not parse own IEs?!");
d9a27b04
JM		 428 os_memset(&elems, 0, sizeof(elems));
429 }
64fa840a
JM		 430 if (elems.rsn_ie) {
431 params.wpa_proto = WPA_PROTO_RSN;
d9a27b04
JM		 432 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.rsn_ie - 2,
433 elems.rsn_ie_len + 2);
64fa840a
JM		 434 } else if (elems.wpa_ie) {
435 params.wpa_proto = WPA_PROTO_WPA;
d9a27b04
JM		 436 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
437 elems.wpa_ie_len + 2);
64fa840a 438 } else
d9a27b04 439 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
ffad8858 440 if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
6e3f4b89 441 params.p2p = 1;
d9a27b04 442
eea2fd9e
JM		 443 if (wpa_s->parent->set_sta_uapsd)
444 params.uapsd = wpa_s->parent->sta_uapsd;
445 else
446 params.uapsd = -1;
447
c2a04078 448 if (wpa_drv_associate(wpa_s, &params) < 0) {
f049052b
BG		 449 wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
450 "driver failed");
e5ad96b7 451 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
c1c02342 452 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
e5ad96b7 453 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
c2a04078
JM		 454 return;
455 }
456
e29853bb
BG		 457 eloop_register_timeout(SME_ASSOC_TIMEOUT, 0, sme_assoc_timer, wpa_s,
458 NULL);
c2a04078
JM		 459}
460
461
462int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
463 const u8 *ies, size_t ies_len)
464{
465 if (md == NULL || ies == NULL) {
f049052b 466 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Remove mobility domain");
c2a04078
JM		 467 os_free(wpa_s->sme.ft_ies);
468 wpa_s->sme.ft_ies = NULL;
469 wpa_s->sme.ft_ies_len = 0;
470 wpa_s->sme.ft_used = 0;
471 return 0;
472 }
473
474 os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
475 wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
476 os_free(wpa_s->sme.ft_ies);
477 wpa_s->sme.ft_ies = os_malloc(ies_len);
478 if (wpa_s->sme.ft_ies == NULL)
479 return -1;
480 os_memcpy(wpa_s->sme.ft_ies, ies, ies_len);
481 wpa_s->sme.ft_ies_len = ies_len;
482 return 0;
483}
efa46078
JM		 484
485
e29853bb 486static void sme_deauth(struct wpa_supplicant *wpa_s)
efa46078 487{
8bac466b
JM		 488 int bssid_changed;
489
8bac466b 490 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
76d11d3f 491
76d11d3f
JM		 492 if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
493 WLAN_REASON_DEAUTH_LEAVING) < 0) {
f049052b
BG		 494 wpa_msg(wpa_s, MSG_INFO, "SME: Deauth request to the driver "
495 "failed");
76d11d3f 496 }
62fa124c 497 wpa_s->sme.prev_bssid_set = 0;
76d11d3f 498
0fb337c1 499 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
76d11d3f 500 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
efa46078
JM		 501 os_memset(wpa_s->bssid, 0, ETH_ALEN);
502 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
8bac466b
JM		 503 if (bssid_changed)
504 wpas_notify_bssid_changed(wpa_s);
efa46078 505}
da1fb17c
JM		 506
507
e29853bb
BG		 508void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
509 union wpa_event_data *data)
510{
511 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association with " MACSTR " failed: "
512 "status code %d", MAC2STR(wpa_s->pending_bssid),
513 data->assoc_reject.status_code);
514
515 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
516
517 /*
518 * For now, unconditionally terminate the previous authentication. In
519 * theory, this should not be needed, but mac80211 gets quite confused
520 * if the authentication is left pending.. Some roaming cases might
521 * benefit from using the previous authentication, so this could be
522 * optimized in the future.
523 */
524 sme_deauth(wpa_s);
525}
526
527
da1fb17c
JM		 528void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
529 union wpa_event_data *data)
530{
f049052b 531 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication timed out");
0fb337c1 532 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
1193dc8f 533 wpa_supplicant_mark_disassoc(wpa_s);
da1fb17c
JM		 534}
535
536
537void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
538 union wpa_event_data *data)
539{
f049052b 540 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association timed out");
0fb337c1 541 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
da1fb17c 542 wpa_supplicant_mark_disassoc(wpa_s);
da1fb17c 543}
a84ed99e
JM		 544
545
546void sme_event_disassoc(struct wpa_supplicant *wpa_s,
547 union wpa_event_data *data)
548{
f049052b 549 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
17fbb751 550 if (wpa_s->sme.prev_bssid_set) {
a84ed99e
JM		 551 /*
552 * cfg80211/mac80211 can get into somewhat confused state if
553 * the AP only disassociates us and leaves us in authenticated
554 * state. For now, force the state to be cleared to avoid
555 * confusing errors if we try to associate with the AP again.
556 */
f049052b
BG		 557 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Deauthenticate to clear "
558 "driver state");
7e26053a 559 wpa_drv_deauthenticate(wpa_s, wpa_s->sme.prev_bssid,
a84ed99e
JM		 560 WLAN_REASON_DEAUTH_LEAVING);
561 }
562}
7d878ca7
JM		 563
564
e29853bb
BG		 565static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx)
566{
567 struct wpa_supplicant *wpa_s = eloop_ctx;
568 if (wpa_s->wpa_state == WPA_AUTHENTICATING) {
569 wpa_msg(wpa_s, MSG_DEBUG, "SME: Authentication timeout");
570 sme_deauth(wpa_s);
571 }
572}
573
574
575static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx)
576{
577 struct wpa_supplicant *wpa_s = eloop_ctx;
578 if (wpa_s->wpa_state == WPA_ASSOCIATING) {
579 wpa_msg(wpa_s, MSG_DEBUG, "SME: Association timeout");
580 sme_deauth(wpa_s);
581 }
582}
583
584
585void sme_state_changed(struct wpa_supplicant *wpa_s)
586{
587 /* Make sure timers are cleaned up appropriately. */
588 if (wpa_s->wpa_state != WPA_ASSOCIATING)
589 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
590 if (wpa_s->wpa_state != WPA_AUTHENTICATING)
591 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
592}
593
594
595void sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
596 const u8 *prev_pending_bssid)
597{
598 /*
599 * mac80211-workaround to force deauth on failed auth cmd,
600 * requires us to remain in authenticating state to allow the
601 * second authentication attempt to be continued properly.
602 */
603 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Allow pending authentication "
604 "to proceed after disconnection event");
605 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
606 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
607
608 /*
609 * Re-arm authentication timer in case auth fails for whatever reason.
610 */
611 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
612 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
613 NULL);
614}
615
616
617void sme_deinit(struct wpa_supplicant *wpa_s)
618{
619 os_free(wpa_s->sme.ft_ies);
620 wpa_s->sme.ft_ies = NULL;
621 wpa_s->sme.ft_ies_len = 0;
622#ifdef CONFIG_IEEE80211W
623 sme_stop_sa_query(wpa_s);
624#endif /* CONFIG_IEEE80211W */
625
626 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
627 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
c3701c66
RM		 628 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
629}
630
631
632static void sme_send_2040_bss_coex(struct wpa_supplicant *wpa_s,
633 const u8 *chan_list, u8 num_channels,
634 u8 num_intol)
635{
636 struct ieee80211_2040_bss_coex_ie *bc_ie;
637 struct ieee80211_2040_intol_chan_report *ic_report;
638 struct wpabuf *buf;
639
640 wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR,
641 MAC2STR(wpa_s->bssid));
642
643 buf = wpabuf_alloc(2 + /* action.category + action_code */
644 sizeof(struct ieee80211_2040_bss_coex_ie) +
645 sizeof(struct ieee80211_2040_intol_chan_report) +
646 num_channels);
647 if (buf == NULL)
648 return;
649
650 wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
651 wpabuf_put_u8(buf, WLAN_PA_20_40_BSS_COEX);
652
653 bc_ie = wpabuf_put(buf, sizeof(*bc_ie));
654 bc_ie->element_id = WLAN_EID_20_40_BSS_COEXISTENCE;
655 bc_ie->length = 1;
656 if (num_intol)
657 bc_ie->coex_param |= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ;
658
659 if (num_channels > 0) {
660 ic_report = wpabuf_put(buf, sizeof(*ic_report));
661 ic_report->element_id = WLAN_EID_20_40_BSS_INTOLERANT;
662 ic_report->length = num_channels + 1;
663 ic_report->op_class = 0;
664 os_memcpy(wpabuf_put(buf, num_channels), chan_list,
665 num_channels);
666 }
667
668 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
669 wpa_s->own_addr, wpa_s->bssid,
670 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
671 wpa_msg(wpa_s, MSG_INFO,
672 "SME: Failed to send 20/40 BSS Coexistence frame");
673 }
674
675 wpabuf_free(buf);
676}
677
678
679/**
680 * enum wpas_band - Frequency band
681 * @WPAS_BAND_2GHZ: 2.4 GHz ISM band
682 * @WPAS_BAND_5GHZ: around 5 GHz band (4.9 - 5.7 GHz)
683 */
684enum wpas_band {
685 WPAS_BAND_2GHZ,
686 WPAS_BAND_5GHZ,
687 WPAS_BAND_INVALID
688};
689
690/**
691 * freq_to_channel - Convert frequency into channel info
692 * @channel: Buffer for returning channel number
693 * Returns: Band (2 or 5 GHz)
694 */
695static enum wpas_band freq_to_channel(int freq, u8 *channel)
696{
697 enum wpas_band band = (freq <= 2484) ? WPAS_BAND_2GHZ : WPAS_BAND_5GHZ;
698 u8 chan = 0;
699
700 if (freq >= 2412 && freq <= 2472)
701 chan = (freq - 2407) / 5;
702 else if (freq == 2484)
703 chan = 14;
704 else if (freq >= 5180 && freq <= 5805)
705 chan = (freq - 5000) / 5;
706
707 *channel = chan;
708 return band;
709}
710
711
712int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
713{
714 struct wpa_bss *bss;
715 const u8 *ie;
716 u16 ht_cap;
717 u8 chan_list[P2P_MAX_CHANNELS], channel;
718 u8 num_channels = 0, num_intol = 0, i;
719
720 if (!wpa_s->sme.sched_obss_scan)
721 return 0;
722
723 wpa_s->sme.sched_obss_scan = 0;
724 if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
725 return 1;
726
727 /*
728 * Check whether AP uses regulatory triplet or channel triplet in
729 * country info. Right now the operating class of the BSS channel
730 * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
731 * based on the assumption that operating class triplet is not used in
732 * beacon frame. If the First Channel Number/Operating Extension
733 * Identifier octet has a positive integer value of 201 or greater,
734 * then its operating class triplet.
735 *
736 * TODO: If Supported Operating Classes element is present in beacon
737 * frame, have to lookup operating class in Annex E and fill them in
738 * 2040 coex frame.
739 */
740 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
741 if (ie && (ie[1] >= 6) && (ie[5] >= 201))
742 return 1;
743
744 os_memset(chan_list, 0, sizeof(chan_list));
745
746 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
747 /* Skip other band bss */
748 if (freq_to_channel(bss->freq, &channel) != WPAS_BAND_2GHZ)
749 continue;
750
751 ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
752 ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
753
754 if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
755 /* Check whether the channel is already considered */
756 for (i = 0; i < num_channels; i++) {
757 if (channel == chan_list[i])
758 break;
759 }
760 if (i != num_channels)
761 continue;
762
763 if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
764 num_intol++;
765
766 chan_list[num_channels++] = channel;
767 }
768 }
769
770 sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
771 return 1;
772}
773
774
6434ad09
JM		 775static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
776 u16 num_modes,
777 enum hostapd_hw_mode mode)
778{
779 u16 i;
780
781 for (i = 0; i < num_modes; i++) {
782 if (modes[i].mode == mode)
783 return &modes[i];
784 }
785
786 return NULL;
787}
788
789
790static void wpa_setband_scan_freqs_list(struct wpa_supplicant *wpa_s,
791 enum hostapd_hw_mode band,
792 struct wpa_driver_scan_params *params)
793{
794 /* Include only supported channels for the specified band */
795 struct hostapd_hw_modes *mode;
796 int count, i;
797
798 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, band);
799 if (mode == NULL) {
800 /* No channels supported in this band - use empty list */
801 params->freqs = os_zalloc(sizeof(int));
802 return;
803 }
804
805 params->freqs = os_zalloc((mode->num_channels + 1) * sizeof(int));
806 if (params->freqs == NULL)
807 return;
808 for (count = 0, i = 0; i < mode->num_channels; i++) {
809 if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
810 continue;
811 params->freqs[count++] = mode->channels[i].freq;
812 }
813}
814
815
c3701c66
RM		 816static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx)
817{
818 struct wpa_supplicant *wpa_s = eloop_ctx;
819 struct wpa_driver_scan_params params;
820
821 if (!wpa_s->current_bss) {
822 wpa_printf(MSG_DEBUG, "SME OBSS: Ignore scan request");
823 return;
824 }
825
826 os_memset(&params, 0, sizeof(params));
6434ad09 827 wpa_setband_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211G, &params);
c3701c66
RM		 828 wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
829
830 if (wpa_supplicant_trigger_scan(wpa_s, &params))
831 wpa_printf(MSG_DEBUG, "SME OBSS: Failed to trigger scan");
832 else
833 wpa_s->sme.sched_obss_scan = 1;
6434ad09 834 os_free(params.freqs);
c3701c66
RM		 835
836 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
837 sme_obss_scan_timeout, wpa_s, NULL);
838}
839
840
841void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable)
842{
843 const u8 *ie;
844 struct wpa_bss *bss = wpa_s->current_bss;
845 struct wpa_ssid *ssid = wpa_s->current_ssid;
846
847 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
848 wpa_s->sme.sched_obss_scan = 0;
849 if (!enable)
850 return;
851
852 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) || ssid == NULL ||
853 ssid->mode != IEEE80211_MODE_INFRA)
854 return; /* Not using station SME in wpa_supplicant */
855
856 if (!wpa_s->hw.modes ||
857 !(wpa_s->hw.modes->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
858 return; /* Driver does not support HT40 */
859
860 if (bss == NULL || bss->freq < 2400 || bss->freq > 2500)
861 return; /* Not associated on 2.4 GHz band */
862
863 /* Check whether AP supports HT40 */
864 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_CAP);
865 if (!ie || ie[1] < 2 ||
866 !(WPA_GET_LE16(ie + 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
867 return; /* AP does not support HT40 */
868
869 ie = wpa_bss_get_ie(wpa_s->current_bss,
870 WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS);
871 if (!ie || ie[1] < 14)
872 return; /* AP does not request OBSS scans */
873
874 wpa_s->sme.obss_scan_int = WPA_GET_LE16(ie + 6);
875 if (wpa_s->sme.obss_scan_int < 10) {
876 wpa_printf(MSG_DEBUG, "SME: Invalid OBSS Scan Interval %u "
877 "replaced with the minimum 10 sec",
878 wpa_s->sme.obss_scan_int);
879 wpa_s->sme.obss_scan_int = 10;
880 }
881 wpa_printf(MSG_DEBUG, "SME: OBSS Scan Interval %u sec",
882 wpa_s->sme.obss_scan_int);
883 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
884 sme_obss_scan_timeout, wpa_s, NULL);
e29853bb
BG		 885}
886
887
7d878ca7
JM		 888#ifdef CONFIG_IEEE80211W
889
890static const unsigned int sa_query_max_timeout = 1000;
891static const unsigned int sa_query_retry_timeout = 201;
892
893static int sme_check_sa_query_timeout(struct wpa_supplicant *wpa_s)
894{
895 u32 tu;
896 struct os_time now, passed;
897 os_get_time(&now);
898 os_time_sub(&now, &wpa_s->sme.sa_query_start, &passed);
899 tu = (passed.sec * 1000000 + passed.usec) / 1024;
900 if (sa_query_max_timeout < tu) {
f049052b 901 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SA Query timed out");
7d878ca7
JM		 902 sme_stop_sa_query(wpa_s);
903 wpa_supplicant_deauthenticate(
904 wpa_s, WLAN_REASON_PREV_AUTH_NOT_VALID);
905 return 1;
906 }
907
908 return 0;
909}
910
911
912static void sme_send_sa_query_req(struct wpa_supplicant *wpa_s,
913 const u8 *trans_id)
914{
915 u8 req[2 + WLAN_SA_QUERY_TR_ID_LEN];
f049052b
BG		 916 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Request to "
917 MACSTR, MAC2STR(wpa_s->bssid));
7d878ca7
JM		 918 wpa_hexdump(MSG_DEBUG, "SME: SA Query Transaction ID",
919 trans_id, WLAN_SA_QUERY_TR_ID_LEN);
920 req[0] = WLAN_ACTION_SA_QUERY;
921 req[1] = WLAN_SA_QUERY_REQUEST;
922 os_memcpy(req + 2, trans_id, WLAN_SA_QUERY_TR_ID_LEN);
190b9062 923 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
7d878ca7 924 wpa_s->own_addr, wpa_s->bssid,
b106173a 925 req, sizeof(req), 0) < 0)
f049052b
BG		 926 wpa_msg(wpa_s, MSG_INFO, "SME: Failed to send SA Query "
927 "Request");
7d878ca7
JM		 928}
929
930
931static void sme_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
932{
933 struct wpa_supplicant *wpa_s = eloop_ctx;
934 unsigned int timeout, sec, usec;
935 u8 *trans_id, *nbuf;
936
937 if (wpa_s->sme.sa_query_count > 0 &&
938 sme_check_sa_query_timeout(wpa_s))
939 return;
940
941 nbuf = os_realloc(wpa_s->sme.sa_query_trans_id,
942 (wpa_s->sme.sa_query_count + 1) *
943 WLAN_SA_QUERY_TR_ID_LEN);
944 if (nbuf == NULL)
945 return;
946 if (wpa_s->sme.sa_query_count == 0) {
947 /* Starting a new SA Query procedure */
948 os_get_time(&wpa_s->sme.sa_query_start);
949 }
950 trans_id = nbuf + wpa_s->sme.sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
951 wpa_s->sme.sa_query_trans_id = nbuf;
952 wpa_s->sme.sa_query_count++;
953
954 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN);
955
956 timeout = sa_query_retry_timeout;
957 sec = ((timeout / 1000) * 1024) / 1000;
958 usec = (timeout % 1000) * 1024;
959 eloop_register_timeout(sec, usec, sme_sa_query_timer, wpa_s, NULL);
960
f049052b
BG		 961 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association SA Query attempt %d",
962 wpa_s->sme.sa_query_count);
7d878ca7
JM		 963
964 sme_send_sa_query_req(wpa_s, trans_id);
965}
966
967
968static void sme_start_sa_query(struct wpa_supplicant *wpa_s)
969{
970 sme_sa_query_timer(wpa_s, NULL);
971}
972
973
19df9b07 974static void sme_stop_sa_query(struct wpa_supplicant *wpa_s)
7d878ca7
JM		 975{
976 eloop_cancel_timeout(sme_sa_query_timer, wpa_s, NULL);
977 os_free(wpa_s->sme.sa_query_trans_id);
978 wpa_s->sme.sa_query_trans_id = NULL;
979 wpa_s->sme.sa_query_count = 0;
980}
981
982
983void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
984 const u8 *da, u16 reason_code)
985{
986 struct wpa_ssid *ssid;
987
988 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
989 return;
990 if (wpa_s->wpa_state != WPA_COMPLETED)
991 return;
992 ssid = wpa_s->current_ssid;
993 if (ssid == NULL || ssid->ieee80211w == 0)
994 return;
995 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
996 return;
997 if (reason_code != WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA &&
998 reason_code != WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA)
999 return;
1000 if (wpa_s->sme.sa_query_count > 0)
1001 return;
1002
f049052b
BG		 1003 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Unprotected disconnect dropped - "
1004 "possible AP/STA state mismatch - trigger SA Query");
7d878ca7
JM		 1005 sme_start_sa_query(wpa_s);
1006}
1007
1008
1009void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
1010 const u8 *data, size_t len)
1011{
1012 int i;
1013
1014 if (wpa_s->sme.sa_query_trans_id == NULL ||
1015 len < 1 + WLAN_SA_QUERY_TR_ID_LEN ||
1016 data[0] != WLAN_SA_QUERY_RESPONSE)
1017 return;
f049052b
BG		 1018 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query response from "
1019 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
7d878ca7
JM		 1020
1021 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
1022 return;
1023
1024 for (i = 0; i < wpa_s->sme.sa_query_count; i++) {
1025 if (os_memcmp(wpa_s->sme.sa_query_trans_id +
1026 i * WLAN_SA_QUERY_TR_ID_LEN,
1027 data + 1, WLAN_SA_QUERY_TR_ID_LEN) == 0)
1028 break;
1029 }
1030
1031 if (i >= wpa_s->sme.sa_query_count) {
f049052b
BG		 1032 wpa_dbg(wpa_s, MSG_DEBUG, "SME: No matching SA Query "
1033 "transaction identifier found");
7d878ca7
JM		 1034 return;
1035 }
1036
f049052b
BG		 1037 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reply to pending SA Query received "
1038 "from " MACSTR, MAC2STR(sa));
7d878ca7
JM		 1039 sme_stop_sa_query(wpa_s);
1040}
1041
1042#endif /* CONFIG_IEEE80211W */
Unnamed repository; edit this file 'description' to name the repository.