events.c 124 KB

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  1. /*
  2. * WPA Supplicant - Driver event processing
  3. * Copyright (c) 2003-2017, Jouni Malinen <j@w1.fi>
  4. *
  5. * This software may be distributed under the terms of the BSD license.
  6. * See README for more details.
  7. */
  8. #include "includes.h"
  9. #include "common.h"
  10. #include "eapol_supp/eapol_supp_sm.h"
  11. #include "rsn_supp/wpa.h"
  12. #include "eloop.h"
  13. #include "config.h"
  14. #include "l2_packet/l2_packet.h"
  15. #include "wpa_supplicant_i.h"
  16. #include "driver_i.h"
  17. #include "pcsc_funcs.h"
  18. #include "rsn_supp/preauth.h"
  19. #include "rsn_supp/pmksa_cache.h"
  20. #include "common/wpa_ctrl.h"
  21. #include "eap_peer/eap.h"
  22. #include "ap/hostapd.h"
  23. #include "p2p/p2p.h"
  24. #include "fst/fst.h"
  25. #include "wnm_sta.h"
  26. #include "notify.h"
  27. #include "common/ieee802_11_defs.h"
  28. #include "common/ieee802_11_common.h"
  29. #include "common/gas_server.h"
  30. #include "crypto/random.h"
  31. #include "blacklist.h"
  32. #include "wpas_glue.h"
  33. #include "wps_supplicant.h"
  34. #include "ibss_rsn.h"
  35. #include "sme.h"
  36. #include "gas_query.h"
  37. #include "p2p_supplicant.h"
  38. #include "bgscan.h"
  39. #include "autoscan.h"
  40. #include "ap.h"
  41. #include "bss.h"
  42. #include "scan.h"
  43. #include "offchannel.h"
  44. #include "interworking.h"
  45. #include "mesh.h"
  46. #include "mesh_mpm.h"
  47. #include "wmm_ac.h"
  48. #include "dpp_supplicant.h"
  49. #ifndef CONFIG_NO_SCAN_PROCESSING
  50. static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
  51. int new_scan, int own_request);
  52. #endif /* CONFIG_NO_SCAN_PROCESSING */
  53. int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
  54. {
  55. struct os_reltime now;
  56. if (ssid == NULL || ssid->disabled_until.sec == 0)
  57. return 0;
  58. os_get_reltime(&now);
  59. if (ssid->disabled_until.sec > now.sec)
  60. return ssid->disabled_until.sec - now.sec;
  61. wpas_clear_temp_disabled(wpa_s, ssid, 0);
  62. return 0;
  63. }
  64. #ifndef CONFIG_NO_SCAN_PROCESSING
  65. /**
  66. * wpas_reenabled_network_time - Time until first network is re-enabled
  67. * @wpa_s: Pointer to wpa_supplicant data
  68. * Returns: If all enabled networks are temporarily disabled, returns the time
  69. * (in sec) until the first network is re-enabled. Otherwise returns 0.
  70. *
  71. * This function is used in case all enabled networks are temporarily disabled,
  72. * in which case it returns the time (in sec) that the first network will be
  73. * re-enabled. The function assumes that at least one network is enabled.
  74. */
  75. static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
  76. {
  77. struct wpa_ssid *ssid;
  78. int disabled_for, res = 0;
  79. #ifdef CONFIG_INTERWORKING
  80. if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
  81. wpa_s->conf->cred)
  82. return 0;
  83. #endif /* CONFIG_INTERWORKING */
  84. for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
  85. if (ssid->disabled)
  86. continue;
  87. disabled_for = wpas_temp_disabled(wpa_s, ssid);
  88. if (!disabled_for)
  89. return 0;
  90. if (!res || disabled_for < res)
  91. res = disabled_for;
  92. }
  93. return res;
  94. }
  95. #endif /* CONFIG_NO_SCAN_PROCESSING */
  96. void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
  97. {
  98. struct wpa_supplicant *wpa_s = eloop_ctx;
  99. if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
  100. return;
  101. wpa_dbg(wpa_s, MSG_DEBUG,
  102. "Try to associate due to network getting re-enabled");
  103. if (wpa_supplicant_fast_associate(wpa_s) != 1) {
  104. wpa_supplicant_cancel_sched_scan(wpa_s);
  105. wpa_supplicant_req_scan(wpa_s, 0, 0);
  106. }
  107. }
  108. static struct wpa_bss * wpa_supplicant_get_new_bss(
  109. struct wpa_supplicant *wpa_s, const u8 *bssid)
  110. {
  111. struct wpa_bss *bss = NULL;
  112. struct wpa_ssid *ssid = wpa_s->current_ssid;
  113. if (ssid->ssid_len > 0)
  114. bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
  115. if (!bss)
  116. bss = wpa_bss_get_bssid(wpa_s, bssid);
  117. return bss;
  118. }
  119. static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
  120. {
  121. struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
  122. if (!bss) {
  123. wpa_supplicant_update_scan_results(wpa_s);
  124. /* Get the BSS from the new scan results */
  125. bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
  126. }
  127. if (bss)
  128. wpa_s->current_bss = bss;
  129. }
  130. static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  131. {
  132. struct wpa_ssid *ssid, *old_ssid;
  133. u8 drv_ssid[SSID_MAX_LEN];
  134. size_t drv_ssid_len;
  135. int res;
  136. if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
  137. wpa_supplicant_update_current_bss(wpa_s);
  138. if (wpa_s->current_ssid->ssid_len == 0)
  139. return 0; /* current profile still in use */
  140. res = wpa_drv_get_ssid(wpa_s, drv_ssid);
  141. if (res < 0) {
  142. wpa_msg(wpa_s, MSG_INFO,
  143. "Failed to read SSID from driver");
  144. return 0; /* try to use current profile */
  145. }
  146. drv_ssid_len = res;
  147. if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
  148. os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
  149. drv_ssid_len) == 0)
  150. return 0; /* current profile still in use */
  151. wpa_msg(wpa_s, MSG_DEBUG,
  152. "Driver-initiated BSS selection changed the SSID to %s",
  153. wpa_ssid_txt(drv_ssid, drv_ssid_len));
  154. /* continue selecting a new network profile */
  155. }
  156. wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
  157. "information");
  158. ssid = wpa_supplicant_get_ssid(wpa_s);
  159. if (ssid == NULL) {
  160. wpa_msg(wpa_s, MSG_INFO,
  161. "No network configuration found for the current AP");
  162. return -1;
  163. }
  164. if (wpas_network_disabled(wpa_s, ssid)) {
  165. wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
  166. return -1;
  167. }
  168. if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
  169. disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
  170. wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
  171. return -1;
  172. }
  173. res = wpas_temp_disabled(wpa_s, ssid);
  174. if (res > 0) {
  175. wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
  176. "disabled for %d second(s)", res);
  177. return -1;
  178. }
  179. wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
  180. "current AP");
  181. if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
  182. u8 wpa_ie[80];
  183. size_t wpa_ie_len = sizeof(wpa_ie);
  184. if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  185. wpa_ie, &wpa_ie_len) < 0)
  186. wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
  187. } else {
  188. wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  189. }
  190. if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  191. eapol_sm_invalidate_cached_session(wpa_s->eapol);
  192. old_ssid = wpa_s->current_ssid;
  193. wpa_s->current_ssid = ssid;
  194. wpa_supplicant_update_current_bss(wpa_s);
  195. wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  196. wpa_supplicant_initiate_eapol(wpa_s);
  197. if (old_ssid != wpa_s->current_ssid)
  198. wpas_notify_network_changed(wpa_s);
  199. return 0;
  200. }
  201. void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
  202. {
  203. struct wpa_supplicant *wpa_s = eloop_ctx;
  204. if (wpa_s->countermeasures) {
  205. wpa_s->countermeasures = 0;
  206. wpa_drv_set_countermeasures(wpa_s, 0);
  207. wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
  208. /*
  209. * It is possible that the device is sched scanning, which means
  210. * that a connection attempt will be done only when we receive
  211. * scan results. However, in this case, it would be preferable
  212. * to scan and connect immediately, so cancel the sched_scan and
  213. * issue a regular scan flow.
  214. */
  215. wpa_supplicant_cancel_sched_scan(wpa_s);
  216. wpa_supplicant_req_scan(wpa_s, 0, 0);
  217. }
  218. }
  219. void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
  220. {
  221. int bssid_changed;
  222. wnm_bss_keep_alive_deinit(wpa_s);
  223. #ifdef CONFIG_IBSS_RSN
  224. ibss_rsn_deinit(wpa_s->ibss_rsn);
  225. wpa_s->ibss_rsn = NULL;
  226. #endif /* CONFIG_IBSS_RSN */
  227. #ifdef CONFIG_AP
  228. wpa_supplicant_ap_deinit(wpa_s);
  229. #endif /* CONFIG_AP */
  230. #ifdef CONFIG_HS20
  231. /* Clear possibly configured frame filters */
  232. wpa_drv_configure_frame_filters(wpa_s, 0);
  233. #endif /* CONFIG_HS20 */
  234. if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
  235. return;
  236. wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
  237. bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
  238. os_memset(wpa_s->bssid, 0, ETH_ALEN);
  239. os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
  240. sme_clear_on_disassoc(wpa_s);
  241. wpa_s->current_bss = NULL;
  242. wpa_s->assoc_freq = 0;
  243. if (bssid_changed)
  244. wpas_notify_bssid_changed(wpa_s);
  245. eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
  246. eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
  247. if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
  248. wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
  249. wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)
  250. eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
  251. wpa_s->ap_ies_from_associnfo = 0;
  252. wpa_s->current_ssid = NULL;
  253. eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
  254. wpa_s->key_mgmt = 0;
  255. wpas_rrm_reset(wpa_s);
  256. wpa_s->wnmsleep_used = 0;
  257. }
  258. static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
  259. {
  260. struct wpa_ie_data ie;
  261. int pmksa_set = -1;
  262. size_t i;
  263. if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
  264. ie.pmkid == NULL)
  265. return;
  266. for (i = 0; i < ie.num_pmkid; i++) {
  267. pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
  268. ie.pmkid + i * PMKID_LEN,
  269. NULL, NULL, 0, NULL);
  270. if (pmksa_set == 0) {
  271. eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
  272. break;
  273. }
  274. }
  275. wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
  276. "PMKSA cache", pmksa_set == 0 ? "" : "not ");
  277. }
  278. static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
  279. union wpa_event_data *data)
  280. {
  281. if (data == NULL) {
  282. wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
  283. "event");
  284. return;
  285. }
  286. wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
  287. " index=%d preauth=%d",
  288. MAC2STR(data->pmkid_candidate.bssid),
  289. data->pmkid_candidate.index,
  290. data->pmkid_candidate.preauth);
  291. pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
  292. data->pmkid_candidate.index,
  293. data->pmkid_candidate.preauth);
  294. }
  295. static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
  296. {
  297. if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
  298. wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
  299. return 0;
  300. #ifdef IEEE8021X_EAPOL
  301. if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
  302. wpa_s->current_ssid &&
  303. !(wpa_s->current_ssid->eapol_flags &
  304. (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
  305. EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
  306. /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
  307. * plaintext or static WEP keys). */
  308. return 0;
  309. }
  310. #endif /* IEEE8021X_EAPOL */
  311. return 1;
  312. }
  313. /**
  314. * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
  315. * @wpa_s: pointer to wpa_supplicant data
  316. * @ssid: Configuration data for the network
  317. * Returns: 0 on success, -1 on failure
  318. *
  319. * This function is called when starting authentication with a network that is
  320. * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
  321. */
  322. int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
  323. struct wpa_ssid *ssid)
  324. {
  325. #ifdef IEEE8021X_EAPOL
  326. #ifdef PCSC_FUNCS
  327. int aka = 0, sim = 0;
  328. if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
  329. wpa_s->scard != NULL || wpa_s->conf->external_sim)
  330. return 0;
  331. if (ssid == NULL || ssid->eap.eap_methods == NULL) {
  332. sim = 1;
  333. aka = 1;
  334. } else {
  335. struct eap_method_type *eap = ssid->eap.eap_methods;
  336. while (eap->vendor != EAP_VENDOR_IETF ||
  337. eap->method != EAP_TYPE_NONE) {
  338. if (eap->vendor == EAP_VENDOR_IETF) {
  339. if (eap->method == EAP_TYPE_SIM)
  340. sim = 1;
  341. else if (eap->method == EAP_TYPE_AKA ||
  342. eap->method == EAP_TYPE_AKA_PRIME)
  343. aka = 1;
  344. }
  345. eap++;
  346. }
  347. }
  348. if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
  349. sim = 0;
  350. if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
  351. eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
  352. NULL)
  353. aka = 0;
  354. if (!sim && !aka) {
  355. wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
  356. "use SIM, but neither EAP-SIM nor EAP-AKA are "
  357. "enabled");
  358. return 0;
  359. }
  360. wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
  361. "(sim=%d aka=%d) - initialize PCSC", sim, aka);
  362. wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
  363. if (wpa_s->scard == NULL) {
  364. wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
  365. "(pcsc-lite)");
  366. return -1;
  367. }
  368. wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
  369. eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
  370. #endif /* PCSC_FUNCS */
  371. #endif /* IEEE8021X_EAPOL */
  372. return 0;
  373. }
  374. #ifndef CONFIG_NO_SCAN_PROCESSING
  375. static int has_wep_key(struct wpa_ssid *ssid)
  376. {
  377. int i;
  378. for (i = 0; i < NUM_WEP_KEYS; i++) {
  379. if (ssid->wep_key_len[i])
  380. return 1;
  381. }
  382. return 0;
  383. }
  384. static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
  385. struct wpa_ssid *ssid)
  386. {
  387. int privacy = 0;
  388. if (ssid->mixed_cell)
  389. return 1;
  390. #ifdef CONFIG_WPS
  391. if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
  392. return 1;
  393. #endif /* CONFIG_WPS */
  394. if (has_wep_key(ssid))
  395. privacy = 1;
  396. #ifdef IEEE8021X_EAPOL
  397. if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
  398. ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
  399. EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
  400. privacy = 1;
  401. #endif /* IEEE8021X_EAPOL */
  402. if (wpa_key_mgmt_wpa(ssid->key_mgmt))
  403. privacy = 1;
  404. if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
  405. privacy = 1;
  406. if (bss->caps & IEEE80211_CAP_PRIVACY)
  407. return privacy;
  408. return !privacy;
  409. }
  410. static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
  411. struct wpa_ssid *ssid,
  412. struct wpa_bss *bss, int debug_print)
  413. {
  414. struct wpa_ie_data ie;
  415. int proto_match = 0;
  416. const u8 *rsn_ie, *wpa_ie;
  417. int ret;
  418. int wep_ok;
  419. ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
  420. if (ret >= 0)
  421. return ret;
  422. /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
  423. wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
  424. (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
  425. ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
  426. (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
  427. rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
  428. while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
  429. proto_match++;
  430. if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
  431. if (debug_print)
  432. wpa_dbg(wpa_s, MSG_DEBUG,
  433. " skip RSN IE - parse failed");
  434. break;
  435. }
  436. if (wep_ok &&
  437. (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
  438. {
  439. if (debug_print)
  440. wpa_dbg(wpa_s, MSG_DEBUG,
  441. " selected based on TSN in RSN IE");
  442. return 1;
  443. }
  444. if (!(ie.proto & ssid->proto)) {
  445. if (debug_print)
  446. wpa_dbg(wpa_s, MSG_DEBUG,
  447. " skip RSN IE - proto mismatch");
  448. break;
  449. }
  450. if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
  451. if (debug_print)
  452. wpa_dbg(wpa_s, MSG_DEBUG,
  453. " skip RSN IE - PTK cipher mismatch");
  454. break;
  455. }
  456. if (!(ie.group_cipher & ssid->group_cipher)) {
  457. if (debug_print)
  458. wpa_dbg(wpa_s, MSG_DEBUG,
  459. " skip RSN IE - GTK cipher mismatch");
  460. break;
  461. }
  462. if (ssid->group_mgmt_cipher &&
  463. !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
  464. if (debug_print)
  465. wpa_dbg(wpa_s, MSG_DEBUG,
  466. " skip RSN IE - group mgmt cipher mismatch");
  467. break;
  468. }
  469. if (!(ie.key_mgmt & ssid->key_mgmt)) {
  470. if (debug_print)
  471. wpa_dbg(wpa_s, MSG_DEBUG,
  472. " skip RSN IE - key mgmt mismatch");
  473. break;
  474. }
  475. #ifdef CONFIG_IEEE80211W
  476. if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
  477. wpas_get_ssid_pmf(wpa_s, ssid) ==
  478. MGMT_FRAME_PROTECTION_REQUIRED) {
  479. if (debug_print)
  480. wpa_dbg(wpa_s, MSG_DEBUG,
  481. " skip RSN IE - no mgmt frame protection");
  482. break;
  483. }
  484. #endif /* CONFIG_IEEE80211W */
  485. if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
  486. wpas_get_ssid_pmf(wpa_s, ssid) ==
  487. NO_MGMT_FRAME_PROTECTION) {
  488. if (debug_print)
  489. wpa_dbg(wpa_s, MSG_DEBUG,
  490. " skip RSN IE - no mgmt frame protection enabled but AP requires it");
  491. break;
  492. }
  493. #ifdef CONFIG_MBO
  494. if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
  495. wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
  496. wpas_get_ssid_pmf(wpa_s, ssid) !=
  497. NO_MGMT_FRAME_PROTECTION) {
  498. if (debug_print)
  499. wpa_dbg(wpa_s, MSG_DEBUG,
  500. " skip RSN IE - no mgmt frame protection enabled on MBO AP");
  501. break;
  502. }
  503. #endif /* CONFIG_MBO */
  504. if (debug_print)
  505. wpa_dbg(wpa_s, MSG_DEBUG,
  506. " selected based on RSN IE");
  507. return 1;
  508. }
  509. #ifdef CONFIG_IEEE80211W
  510. if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
  511. if (debug_print)
  512. wpa_dbg(wpa_s, MSG_DEBUG,
  513. " skip - MFP Required but network not MFP Capable");
  514. return 0;
  515. }
  516. #endif /* CONFIG_IEEE80211W */
  517. wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
  518. while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
  519. proto_match++;
  520. if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
  521. if (debug_print)
  522. wpa_dbg(wpa_s, MSG_DEBUG,
  523. " skip WPA IE - parse failed");
  524. break;
  525. }
  526. if (wep_ok &&
  527. (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
  528. {
  529. if (debug_print)
  530. wpa_dbg(wpa_s, MSG_DEBUG,
  531. " selected based on TSN in WPA IE");
  532. return 1;
  533. }
  534. if (!(ie.proto & ssid->proto)) {
  535. if (debug_print)
  536. wpa_dbg(wpa_s, MSG_DEBUG,
  537. " skip WPA IE - proto mismatch");
  538. break;
  539. }
  540. if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
  541. if (debug_print)
  542. wpa_dbg(wpa_s, MSG_DEBUG,
  543. " skip WPA IE - PTK cipher mismatch");
  544. break;
  545. }
  546. if (!(ie.group_cipher & ssid->group_cipher)) {
  547. if (debug_print)
  548. wpa_dbg(wpa_s, MSG_DEBUG,
  549. " skip WPA IE - GTK cipher mismatch");
  550. break;
  551. }
  552. if (!(ie.key_mgmt & ssid->key_mgmt)) {
  553. if (debug_print)
  554. wpa_dbg(wpa_s, MSG_DEBUG,
  555. " skip WPA IE - key mgmt mismatch");
  556. break;
  557. }
  558. if (debug_print)
  559. wpa_dbg(wpa_s, MSG_DEBUG,
  560. " selected based on WPA IE");
  561. return 1;
  562. }
  563. if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
  564. !rsn_ie) {
  565. if (debug_print)
  566. wpa_dbg(wpa_s, MSG_DEBUG,
  567. " allow for non-WPA IEEE 802.1X");
  568. return 1;
  569. }
  570. if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
  571. wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
  572. if (debug_print)
  573. wpa_dbg(wpa_s, MSG_DEBUG,
  574. " skip - no WPA/RSN proto match");
  575. return 0;
  576. }
  577. if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
  578. wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
  579. if (debug_print)
  580. wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
  581. return 1;
  582. }
  583. if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
  584. if (debug_print)
  585. wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
  586. return 1;
  587. }
  588. if (debug_print)
  589. wpa_dbg(wpa_s, MSG_DEBUG,
  590. " reject due to mismatch with WPA/WPA2");
  591. return 0;
  592. }
  593. static int freq_allowed(int *freqs, int freq)
  594. {
  595. int i;
  596. if (freqs == NULL)
  597. return 1;
  598. for (i = 0; freqs[i]; i++)
  599. if (freqs[i] == freq)
  600. return 1;
  601. return 0;
  602. }
  603. static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
  604. int debug_print)
  605. {
  606. const struct hostapd_hw_modes *mode = NULL, *modes;
  607. const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
  608. const u8 *rate_ie;
  609. int i, j, k;
  610. if (bss->freq == 0)
  611. return 1; /* Cannot do matching without knowing band */
  612. modes = wpa_s->hw.modes;
  613. if (modes == NULL) {
  614. /*
  615. * The driver does not provide any additional information
  616. * about the utilized hardware, so allow the connection attempt
  617. * to continue.
  618. */
  619. return 1;
  620. }
  621. for (i = 0; i < wpa_s->hw.num_modes; i++) {
  622. for (j = 0; j < modes[i].num_channels; j++) {
  623. int freq = modes[i].channels[j].freq;
  624. if (freq == bss->freq) {
  625. if (mode &&
  626. mode->mode == HOSTAPD_MODE_IEEE80211G)
  627. break; /* do not allow 802.11b replace
  628. * 802.11g */
  629. mode = &modes[i];
  630. break;
  631. }
  632. }
  633. }
  634. if (mode == NULL)
  635. return 0;
  636. for (i = 0; i < (int) sizeof(scan_ie); i++) {
  637. rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
  638. if (rate_ie == NULL)
  639. continue;
  640. for (j = 2; j < rate_ie[1] + 2; j++) {
  641. int flagged = !!(rate_ie[j] & 0x80);
  642. int r = (rate_ie[j] & 0x7f) * 5;
  643. /*
  644. * IEEE Std 802.11n-2009 7.3.2.2:
  645. * The new BSS Membership selector value is encoded
  646. * like a legacy basic rate, but it is not a rate and
  647. * only indicates if the BSS members are required to
  648. * support the mandatory features of Clause 20 [HT PHY]
  649. * in order to join the BSS.
  650. */
  651. if (flagged && ((rate_ie[j] & 0x7f) ==
  652. BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
  653. if (!ht_supported(mode)) {
  654. if (debug_print)
  655. wpa_dbg(wpa_s, MSG_DEBUG,
  656. " hardware does not support HT PHY");
  657. return 0;
  658. }
  659. continue;
  660. }
  661. /* There's also a VHT selector for 802.11ac */
  662. if (flagged && ((rate_ie[j] & 0x7f) ==
  663. BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
  664. if (!vht_supported(mode)) {
  665. if (debug_print)
  666. wpa_dbg(wpa_s, MSG_DEBUG,
  667. " hardware does not support VHT PHY");
  668. return 0;
  669. }
  670. continue;
  671. }
  672. if (!flagged)
  673. continue;
  674. /* check for legacy basic rates */
  675. for (k = 0; k < mode->num_rates; k++) {
  676. if (mode->rates[k] == r)
  677. break;
  678. }
  679. if (k == mode->num_rates) {
  680. /*
  681. * IEEE Std 802.11-2007 7.3.2.2 demands that in
  682. * order to join a BSS all required rates
  683. * have to be supported by the hardware.
  684. */
  685. if (debug_print)
  686. wpa_dbg(wpa_s, MSG_DEBUG,
  687. " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
  688. r / 10, r % 10,
  689. bss->freq, mode->mode, mode->num_rates);
  690. return 0;
  691. }
  692. }
  693. }
  694. return 1;
  695. }
  696. /*
  697. * Test whether BSS is in an ESS.
  698. * This is done differently in DMG (60 GHz) and non-DMG bands
  699. */
  700. static int bss_is_ess(struct wpa_bss *bss)
  701. {
  702. if (bss_is_dmg(bss)) {
  703. return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
  704. IEEE80211_CAP_DMG_AP;
  705. }
  706. return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
  707. IEEE80211_CAP_ESS);
  708. }
  709. static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
  710. {
  711. size_t i;
  712. for (i = 0; i < ETH_ALEN; i++) {
  713. if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
  714. return 0;
  715. }
  716. return 1;
  717. }
  718. static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
  719. {
  720. size_t i;
  721. for (i = 0; i < num; i++) {
  722. const u8 *a = list + i * ETH_ALEN * 2;
  723. const u8 *m = a + ETH_ALEN;
  724. if (match_mac_mask(a, addr, m))
  725. return 1;
  726. }
  727. return 0;
  728. }
  729. static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
  730. const u8 **ret_ssid, size_t *ret_ssid_len)
  731. {
  732. #ifdef CONFIG_OWE
  733. const u8 *owe, *pos, *end, *bssid;
  734. u8 ssid_len;
  735. struct wpa_bss *open_bss;
  736. owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
  737. if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
  738. return;
  739. pos = owe + 6;
  740. end = owe + 2 + owe[1];
  741. if (end - pos < ETH_ALEN + 1)
  742. return;
  743. bssid = pos;
  744. pos += ETH_ALEN;
  745. ssid_len = *pos++;
  746. if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
  747. return;
  748. /* Match the profile SSID against the OWE transition mode SSID on the
  749. * open network. */
  750. wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
  751. " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
  752. *ret_ssid = pos;
  753. *ret_ssid_len = ssid_len;
  754. if (bss->ssid_len > 0)
  755. return;
  756. open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
  757. if (!open_bss)
  758. return;
  759. if (ssid_len != open_bss->ssid_len ||
  760. os_memcmp(pos, open_bss->ssid, ssid_len) != 0) {
  761. wpa_dbg(wpa_s, MSG_DEBUG,
  762. "OWE: transition mode SSID mismatch: %s",
  763. wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len));
  764. return;
  765. }
  766. owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE);
  767. if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) {
  768. wpa_dbg(wpa_s, MSG_DEBUG,
  769. "OWE: transition mode open BSS unexpected info");
  770. return;
  771. }
  772. pos = owe + 6;
  773. end = owe + 2 + owe[1];
  774. if (end - pos < ETH_ALEN + 1)
  775. return;
  776. if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) {
  777. wpa_dbg(wpa_s, MSG_DEBUG,
  778. "OWE: transition mode BSSID mismatch: " MACSTR,
  779. MAC2STR(pos));
  780. return;
  781. }
  782. pos += ETH_ALEN;
  783. ssid_len = *pos++;
  784. if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
  785. return;
  786. wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s",
  787. wpa_ssid_txt(pos, ssid_len));
  788. os_memcpy(bss->ssid, pos, ssid_len);
  789. bss->ssid_len = ssid_len;
  790. #endif /* CONFIG_OWE */
  791. }
  792. struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
  793. int i, struct wpa_bss *bss,
  794. struct wpa_ssid *group,
  795. int only_first_ssid, int debug_print)
  796. {
  797. u8 wpa_ie_len, rsn_ie_len;
  798. int wpa;
  799. struct wpa_blacklist *e;
  800. const u8 *ie;
  801. struct wpa_ssid *ssid;
  802. int osen;
  803. #ifdef CONFIG_MBO
  804. const u8 *assoc_disallow;
  805. #endif /* CONFIG_MBO */
  806. const u8 *match_ssid;
  807. size_t match_ssid_len;
  808. ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
  809. wpa_ie_len = ie ? ie[1] : 0;
  810. ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
  811. rsn_ie_len = ie ? ie[1] : 0;
  812. ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
  813. osen = ie != NULL;
  814. if (debug_print) {
  815. wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
  816. " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
  817. i, MAC2STR(bss->bssid),
  818. wpa_ssid_txt(bss->ssid, bss->ssid_len),
  819. wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
  820. bss->freq,
  821. wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
  822. " wps" : "",
  823. (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
  824. wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
  825. ? " p2p" : "",
  826. osen ? " osen=1" : "");
  827. }
  828. e = wpa_blacklist_get(wpa_s, bss->bssid);
  829. if (e) {
  830. int limit = 1;
  831. if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
  832. /*
  833. * When only a single network is enabled, we can
  834. * trigger blacklisting on the first failure. This
  835. * should not be done with multiple enabled networks to
  836. * avoid getting forced to move into a worse ESS on
  837. * single error if there are no other BSSes of the
  838. * current ESS.
  839. */
  840. limit = 0;
  841. }
  842. if (e->count > limit) {
  843. if (debug_print) {
  844. wpa_dbg(wpa_s, MSG_DEBUG,
  845. " skip - blacklisted (count=%d limit=%d)",
  846. e->count, limit);
  847. }
  848. return NULL;
  849. }
  850. }
  851. match_ssid = bss->ssid;
  852. match_ssid_len = bss->ssid_len;
  853. owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
  854. if (match_ssid_len == 0) {
  855. if (debug_print)
  856. wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
  857. return NULL;
  858. }
  859. if (disallowed_bssid(wpa_s, bss->bssid)) {
  860. if (debug_print)
  861. wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
  862. return NULL;
  863. }
  864. if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
  865. if (debug_print)
  866. wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
  867. return NULL;
  868. }
  869. wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
  870. for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
  871. int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
  872. int res;
  873. if (wpas_network_disabled(wpa_s, ssid)) {
  874. if (debug_print)
  875. wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
  876. continue;
  877. }
  878. res = wpas_temp_disabled(wpa_s, ssid);
  879. if (res > 0) {
  880. if (debug_print)
  881. wpa_dbg(wpa_s, MSG_DEBUG,
  882. " skip - disabled temporarily for %d second(s)",
  883. res);
  884. continue;
  885. }
  886. #ifdef CONFIG_WPS
  887. if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
  888. if (debug_print)
  889. wpa_dbg(wpa_s, MSG_DEBUG,
  890. " skip - blacklisted (WPS)");
  891. continue;
  892. }
  893. if (wpa && ssid->ssid_len == 0 &&
  894. wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
  895. check_ssid = 0;
  896. if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  897. /* Only allow wildcard SSID match if an AP
  898. * advertises active WPS operation that matches
  899. * with our mode. */
  900. check_ssid = 1;
  901. if (ssid->ssid_len == 0 &&
  902. wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
  903. check_ssid = 0;
  904. }
  905. #endif /* CONFIG_WPS */
  906. if (ssid->bssid_set && ssid->ssid_len == 0 &&
  907. os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
  908. check_ssid = 0;
  909. if (check_ssid &&
  910. (match_ssid_len != ssid->ssid_len ||
  911. os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
  912. if (debug_print)
  913. wpa_dbg(wpa_s, MSG_DEBUG,
  914. " skip - SSID mismatch");
  915. continue;
  916. }
  917. if (ssid->bssid_set &&
  918. os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
  919. if (debug_print)
  920. wpa_dbg(wpa_s, MSG_DEBUG,
  921. " skip - BSSID mismatch");
  922. continue;
  923. }
  924. /* check blacklist */
  925. if (ssid->num_bssid_blacklist &&
  926. addr_in_list(bss->bssid, ssid->bssid_blacklist,
  927. ssid->num_bssid_blacklist)) {
  928. if (debug_print)
  929. wpa_dbg(wpa_s, MSG_DEBUG,
  930. " skip - BSSID blacklisted");
  931. continue;
  932. }
  933. /* if there is a whitelist, only accept those APs */
  934. if (ssid->num_bssid_whitelist &&
  935. !addr_in_list(bss->bssid, ssid->bssid_whitelist,
  936. ssid->num_bssid_whitelist)) {
  937. if (debug_print)
  938. wpa_dbg(wpa_s, MSG_DEBUG,
  939. " skip - BSSID not in whitelist");
  940. continue;
  941. }
  942. if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss,
  943. debug_print))
  944. continue;
  945. if (!osen && !wpa &&
  946. !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
  947. !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
  948. !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
  949. if (debug_print)
  950. wpa_dbg(wpa_s, MSG_DEBUG,
  951. " skip - non-WPA network not allowed");
  952. continue;
  953. }
  954. if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
  955. has_wep_key(ssid)) {
  956. if (debug_print)
  957. wpa_dbg(wpa_s, MSG_DEBUG,
  958. " skip - ignore WPA/WPA2 AP for WEP network block");
  959. continue;
  960. }
  961. if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
  962. if (debug_print)
  963. wpa_dbg(wpa_s, MSG_DEBUG,
  964. " skip - non-OSEN network not allowed");
  965. continue;
  966. }
  967. if (!wpa_supplicant_match_privacy(bss, ssid)) {
  968. if (debug_print)
  969. wpa_dbg(wpa_s, MSG_DEBUG,
  970. " skip - privacy mismatch");
  971. continue;
  972. }
  973. if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) &&
  974. !bss_is_pbss(bss)) {
  975. if (debug_print)
  976. wpa_dbg(wpa_s, MSG_DEBUG,
  977. " skip - not ESS, PBSS, or MBSS");
  978. continue;
  979. }
  980. if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
  981. if (debug_print)
  982. wpa_dbg(wpa_s, MSG_DEBUG,
  983. " skip - PBSS mismatch (ssid %d bss %d)",
  984. ssid->pbss, bss_is_pbss(bss));
  985. continue;
  986. }
  987. if (!freq_allowed(ssid->freq_list, bss->freq)) {
  988. if (debug_print)
  989. wpa_dbg(wpa_s, MSG_DEBUG,
  990. " skip - frequency not allowed");
  991. continue;
  992. }
  993. #ifdef CONFIG_MESH
  994. if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 &&
  995. ssid->frequency != bss->freq) {
  996. if (debug_print)
  997. wpa_dbg(wpa_s, MSG_DEBUG,
  998. " skip - frequency not allowed (mesh)");
  999. continue;
  1000. }
  1001. #endif /* CONFIG_MESH */
  1002. if (!rate_match(wpa_s, bss, debug_print)) {
  1003. if (debug_print)
  1004. wpa_dbg(wpa_s, MSG_DEBUG,
  1005. " skip - rate sets do not match");
  1006. continue;
  1007. }
  1008. #ifndef CONFIG_IBSS_RSN
  1009. if (ssid->mode == WPAS_MODE_IBSS &&
  1010. !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
  1011. WPA_KEY_MGMT_WPA_NONE))) {
  1012. if (debug_print)
  1013. wpa_dbg(wpa_s, MSG_DEBUG,
  1014. " skip - IBSS RSN not supported in the build");
  1015. continue;
  1016. }
  1017. #endif /* !CONFIG_IBSS_RSN */
  1018. #ifdef CONFIG_P2P
  1019. if (ssid->p2p_group &&
  1020. !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
  1021. !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
  1022. if (debug_print)
  1023. wpa_dbg(wpa_s, MSG_DEBUG,
  1024. " skip - no P2P IE seen");
  1025. continue;
  1026. }
  1027. if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
  1028. struct wpabuf *p2p_ie;
  1029. u8 dev_addr[ETH_ALEN];
  1030. ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
  1031. if (ie == NULL) {
  1032. if (debug_print)
  1033. wpa_dbg(wpa_s, MSG_DEBUG,
  1034. " skip - no P2P element");
  1035. continue;
  1036. }
  1037. p2p_ie = wpa_bss_get_vendor_ie_multi(
  1038. bss, P2P_IE_VENDOR_TYPE);
  1039. if (p2p_ie == NULL) {
  1040. if (debug_print)
  1041. wpa_dbg(wpa_s, MSG_DEBUG,
  1042. " skip - could not fetch P2P element");
  1043. continue;
  1044. }
  1045. if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
  1046. || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
  1047. ETH_ALEN) != 0) {
  1048. if (debug_print)
  1049. wpa_dbg(wpa_s, MSG_DEBUG,
  1050. " skip - no matching GO P2P Device Address in P2P element");
  1051. wpabuf_free(p2p_ie);
  1052. continue;
  1053. }
  1054. wpabuf_free(p2p_ie);
  1055. }
  1056. /*
  1057. * TODO: skip the AP if its P2P IE has Group Formation
  1058. * bit set in the P2P Group Capability Bitmap and we
  1059. * are not in Group Formation with that device.
  1060. */
  1061. #endif /* CONFIG_P2P */
  1062. if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
  1063. {
  1064. struct os_reltime diff;
  1065. os_reltime_sub(&wpa_s->scan_min_time,
  1066. &bss->last_update, &diff);
  1067. if (debug_print)
  1068. wpa_dbg(wpa_s, MSG_DEBUG,
  1069. " skip - scan result not recent enough (%u.%06u seconds too old)",
  1070. (unsigned int) diff.sec,
  1071. (unsigned int) diff.usec);
  1072. continue;
  1073. }
  1074. #ifdef CONFIG_MBO
  1075. #ifdef CONFIG_TESTING_OPTIONS
  1076. if (wpa_s->ignore_assoc_disallow)
  1077. goto skip_assoc_disallow;
  1078. #endif /* CONFIG_TESTING_OPTIONS */
  1079. assoc_disallow = wpas_mbo_get_bss_attr(
  1080. bss, MBO_ATTR_ID_ASSOC_DISALLOW);
  1081. if (assoc_disallow && assoc_disallow[1] >= 1) {
  1082. if (debug_print)
  1083. wpa_dbg(wpa_s, MSG_DEBUG,
  1084. " skip - MBO association disallowed (reason %u)",
  1085. assoc_disallow[2]);
  1086. continue;
  1087. }
  1088. if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
  1089. if (debug_print)
  1090. wpa_dbg(wpa_s, MSG_DEBUG,
  1091. " skip - MBO retry delay has not passed yet");
  1092. continue;
  1093. }
  1094. #ifdef CONFIG_TESTING_OPTIONS
  1095. skip_assoc_disallow:
  1096. #endif /* CONFIG_TESTING_OPTIONS */
  1097. #endif /* CONFIG_MBO */
  1098. #ifdef CONFIG_DPP
  1099. if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
  1100. !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
  1101. (!ssid->dpp_connector ||
  1102. !ssid->dpp_netaccesskey ||
  1103. !ssid->dpp_csign)) {
  1104. if (debug_print)
  1105. wpa_dbg(wpa_s, MSG_DEBUG,
  1106. " skip - no PMKSA entry for DPP");
  1107. continue;
  1108. }
  1109. #endif /* CONFIG_DPP */
  1110. /* Matching configuration found */
  1111. return ssid;
  1112. }
  1113. /* No matching configuration found */
  1114. return NULL;
  1115. }
  1116. static struct wpa_bss *
  1117. wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
  1118. struct wpa_ssid *group,
  1119. struct wpa_ssid **selected_ssid,
  1120. int only_first_ssid)
  1121. {
  1122. unsigned int i;
  1123. if (wpa_s->current_ssid) {
  1124. struct wpa_ssid *ssid;
  1125. wpa_dbg(wpa_s, MSG_DEBUG,
  1126. "Scan results matching the currently selected network");
  1127. for (i = 0; i < wpa_s->last_scan_res_used; i++) {
  1128. struct wpa_bss *bss = wpa_s->last_scan_res[i];
  1129. ssid = wpa_scan_res_match(wpa_s, i, bss, group,
  1130. only_first_ssid, 0);
  1131. if (ssid != wpa_s->current_ssid)
  1132. continue;
  1133. wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
  1134. " freq=%d level=%d snr=%d est_throughput=%u",
  1135. i, MAC2STR(bss->bssid), bss->freq, bss->level,
  1136. bss->snr, bss->est_throughput);
  1137. }
  1138. }
  1139. if (only_first_ssid)
  1140. wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
  1141. group->id);
  1142. else
  1143. wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
  1144. group->priority);
  1145. for (i = 0; i < wpa_s->last_scan_res_used; i++) {
  1146. struct wpa_bss *bss = wpa_s->last_scan_res[i];
  1147. *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
  1148. only_first_ssid, 1);
  1149. if (!*selected_ssid)
  1150. continue;
  1151. wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
  1152. " ssid='%s'",
  1153. MAC2STR(bss->bssid),
  1154. wpa_ssid_txt(bss->ssid, bss->ssid_len));
  1155. return bss;
  1156. }
  1157. return NULL;
  1158. }
  1159. struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
  1160. struct wpa_ssid **selected_ssid)
  1161. {
  1162. struct wpa_bss *selected = NULL;
  1163. int prio;
  1164. struct wpa_ssid *next_ssid = NULL;
  1165. struct wpa_ssid *ssid;
  1166. if (wpa_s->last_scan_res == NULL ||
  1167. wpa_s->last_scan_res_used == 0)
  1168. return NULL; /* no scan results from last update */
  1169. if (wpa_s->next_ssid) {
  1170. /* check that next_ssid is still valid */
  1171. for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
  1172. if (ssid == wpa_s->next_ssid)
  1173. break;
  1174. }
  1175. next_ssid = ssid;
  1176. wpa_s->next_ssid = NULL;
  1177. }
  1178. while (selected == NULL) {
  1179. for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
  1180. if (next_ssid && next_ssid->priority ==
  1181. wpa_s->conf->pssid[prio]->priority) {
  1182. selected = wpa_supplicant_select_bss(
  1183. wpa_s, next_ssid, selected_ssid, 1);
  1184. if (selected)
  1185. break;
  1186. }
  1187. selected = wpa_supplicant_select_bss(
  1188. wpa_s, wpa_s->conf->pssid[prio],
  1189. selected_ssid, 0);
  1190. if (selected)
  1191. break;
  1192. }
  1193. if (selected == NULL && wpa_s->blacklist &&
  1194. !wpa_s->countermeasures) {
  1195. wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
  1196. "blacklist and try again");
  1197. wpa_blacklist_clear(wpa_s);
  1198. wpa_s->blacklist_cleared++;
  1199. } else if (selected == NULL)
  1200. break;
  1201. }
  1202. ssid = *selected_ssid;
  1203. if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
  1204. !ssid->passphrase && !ssid->ext_psk) {
  1205. const char *field_name, *txt = NULL;
  1206. wpa_dbg(wpa_s, MSG_DEBUG,
  1207. "PSK/passphrase not yet available for the selected network");
  1208. wpas_notify_network_request(wpa_s, ssid,
  1209. WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
  1210. field_name = wpa_supplicant_ctrl_req_to_string(
  1211. WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
  1212. if (field_name == NULL)
  1213. return NULL;
  1214. wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
  1215. selected = NULL;
  1216. }
  1217. return selected;
  1218. }
  1219. static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
  1220. int timeout_sec, int timeout_usec)
  1221. {
  1222. if (!wpa_supplicant_enabled_networks(wpa_s)) {
  1223. /*
  1224. * No networks are enabled; short-circuit request so
  1225. * we don't wait timeout seconds before transitioning
  1226. * to INACTIVE state.
  1227. */
  1228. wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
  1229. "since there are no enabled networks");
  1230. wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
  1231. return;
  1232. }
  1233. wpa_s->scan_for_connection = 1;
  1234. wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
  1235. }
  1236. int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
  1237. struct wpa_bss *selected,
  1238. struct wpa_ssid *ssid)
  1239. {
  1240. if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
  1241. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
  1242. "PBC session overlap");
  1243. wpas_notify_wps_event_pbc_overlap(wpa_s);
  1244. #ifdef CONFIG_P2P
  1245. if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
  1246. wpa_s->p2p_in_provisioning) {
  1247. eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
  1248. wpa_s, NULL);
  1249. return -1;
  1250. }
  1251. #endif /* CONFIG_P2P */
  1252. #ifdef CONFIG_WPS
  1253. wpas_wps_pbc_overlap(wpa_s);
  1254. wpas_wps_cancel(wpa_s);
  1255. #endif /* CONFIG_WPS */
  1256. return -1;
  1257. }
  1258. wpa_msg(wpa_s, MSG_DEBUG,
  1259. "Considering connect request: reassociate: %d selected: "
  1260. MACSTR " bssid: " MACSTR " pending: " MACSTR
  1261. " wpa_state: %s ssid=%p current_ssid=%p",
  1262. wpa_s->reassociate, MAC2STR(selected->bssid),
  1263. MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
  1264. wpa_supplicant_state_txt(wpa_s->wpa_state),
  1265. ssid, wpa_s->current_ssid);
  1266. /*
  1267. * Do not trigger new association unless the BSSID has changed or if
  1268. * reassociation is requested. If we are in process of associating with
  1269. * the selected BSSID, do not trigger new attempt.
  1270. */
  1271. if (wpa_s->reassociate ||
  1272. (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
  1273. ((wpa_s->wpa_state != WPA_ASSOCIATING &&
  1274. wpa_s->wpa_state != WPA_AUTHENTICATING) ||
  1275. (!is_zero_ether_addr(wpa_s->pending_bssid) &&
  1276. os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
  1277. 0) ||
  1278. (is_zero_ether_addr(wpa_s->pending_bssid) &&
  1279. ssid != wpa_s->current_ssid)))) {
  1280. if (wpa_supplicant_scard_init(wpa_s, ssid)) {
  1281. wpa_supplicant_req_new_scan(wpa_s, 10, 0);
  1282. return 0;
  1283. }
  1284. wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
  1285. MAC2STR(selected->bssid));
  1286. wpa_supplicant_associate(wpa_s, selected, ssid);
  1287. } else {
  1288. wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
  1289. "connect with the selected AP");
  1290. }
  1291. return 0;
  1292. }
  1293. static struct wpa_ssid *
  1294. wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
  1295. {
  1296. int prio;
  1297. struct wpa_ssid *ssid;
  1298. for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
  1299. for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
  1300. {
  1301. if (wpas_network_disabled(wpa_s, ssid))
  1302. continue;
  1303. #ifndef CONFIG_IBSS_RSN
  1304. if (ssid->mode == WPAS_MODE_IBSS &&
  1305. !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
  1306. WPA_KEY_MGMT_WPA_NONE))) {
  1307. wpa_msg(wpa_s, MSG_INFO,
  1308. "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
  1309. wpa_ssid_txt(ssid->ssid,
  1310. ssid->ssid_len));
  1311. continue;
  1312. }
  1313. #endif /* !CONFIG_IBSS_RSN */
  1314. if (ssid->mode == IEEE80211_MODE_IBSS ||
  1315. ssid->mode == IEEE80211_MODE_AP ||
  1316. ssid->mode == IEEE80211_MODE_MESH)
  1317. return ssid;
  1318. }
  1319. }
  1320. return NULL;
  1321. }
  1322. /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
  1323. * on BSS added and BSS changed events */
  1324. static void wpa_supplicant_rsn_preauth_scan_results(
  1325. struct wpa_supplicant *wpa_s)
  1326. {
  1327. struct wpa_bss *bss;
  1328. if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
  1329. return;
  1330. dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
  1331. const u8 *ssid, *rsn;
  1332. ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
  1333. if (ssid == NULL)
  1334. continue;
  1335. rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
  1336. if (rsn == NULL)
  1337. continue;
  1338. rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
  1339. }
  1340. }
  1341. static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
  1342. struct wpa_bss *selected,
  1343. struct wpa_ssid *ssid)
  1344. {
  1345. struct wpa_bss *current_bss = NULL;
  1346. #ifndef CONFIG_NO_ROAMING
  1347. int min_diff, diff;
  1348. int to_5ghz;
  1349. int cur_est, sel_est;
  1350. #endif /* CONFIG_NO_ROAMING */
  1351. if (wpa_s->reassociate)
  1352. return 1; /* explicit request to reassociate */
  1353. if (wpa_s->wpa_state < WPA_ASSOCIATED)
  1354. return 1; /* we are not associated; continue */
  1355. if (wpa_s->current_ssid == NULL)
  1356. return 1; /* unknown current SSID */
  1357. if (wpa_s->current_ssid != ssid)
  1358. return 1; /* different network block */
  1359. if (wpas_driver_bss_selection(wpa_s))
  1360. return 0; /* Driver-based roaming */
  1361. if (wpa_s->current_ssid->ssid)
  1362. current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
  1363. wpa_s->current_ssid->ssid,
  1364. wpa_s->current_ssid->ssid_len);
  1365. if (!current_bss)
  1366. current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
  1367. if (!current_bss)
  1368. return 1; /* current BSS not seen in scan results */
  1369. if (current_bss == selected)
  1370. return 0;
  1371. if (selected->last_update_idx > current_bss->last_update_idx)
  1372. return 1; /* current BSS not seen in the last scan */
  1373. #ifndef CONFIG_NO_ROAMING
  1374. wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
  1375. wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
  1376. " freq=%d level=%d snr=%d est_throughput=%u",
  1377. MAC2STR(current_bss->bssid),
  1378. current_bss->freq, current_bss->level,
  1379. current_bss->snr, current_bss->est_throughput);
  1380. wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
  1381. " freq=%d level=%d snr=%d est_throughput=%u",
  1382. MAC2STR(selected->bssid), selected->freq, selected->level,
  1383. selected->snr, selected->est_throughput);
  1384. if (wpa_s->current_ssid->bssid_set &&
  1385. os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
  1386. 0) {
  1387. wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
  1388. "has preferred BSSID");
  1389. return 1;
  1390. }
  1391. if (selected->est_throughput > current_bss->est_throughput + 5000) {
  1392. wpa_dbg(wpa_s, MSG_DEBUG,
  1393. "Allow reassociation - selected BSS has better estimated throughput");
  1394. return 1;
  1395. }
  1396. to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
  1397. if (current_bss->level < 0 &&
  1398. current_bss->level > selected->level + to_5ghz * 2) {
  1399. wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
  1400. "signal level");
  1401. return 0;
  1402. }
  1403. if (current_bss->est_throughput > selected->est_throughput + 5000) {
  1404. wpa_dbg(wpa_s, MSG_DEBUG,
  1405. "Skip roam - Current BSS has better estimated throughput");
  1406. return 0;
  1407. }
  1408. cur_est = current_bss->est_throughput;
  1409. sel_est = selected->est_throughput;
  1410. min_diff = 2;
  1411. if (current_bss->level < 0) {
  1412. if (current_bss->level < -85)
  1413. min_diff = 1;
  1414. else if (current_bss->level < -80)
  1415. min_diff = 2;
  1416. else if (current_bss->level < -75)
  1417. min_diff = 3;
  1418. else if (current_bss->level < -70)
  1419. min_diff = 4;
  1420. else
  1421. min_diff = 5;
  1422. if (cur_est > sel_est * 1.5)
  1423. min_diff += 10;
  1424. else if (cur_est > sel_est * 1.2)
  1425. min_diff += 5;
  1426. else if (cur_est > sel_est * 1.1)
  1427. min_diff += 2;
  1428. else if (cur_est > sel_est)
  1429. min_diff++;
  1430. }
  1431. if (to_5ghz) {
  1432. int reduce = 2;
  1433. /* Make it easier to move to 5 GHz band */
  1434. if (sel_est > cur_est * 1.5)
  1435. reduce = 5;
  1436. else if (sel_est > cur_est * 1.2)
  1437. reduce = 4;
  1438. else if (sel_est > cur_est * 1.1)
  1439. reduce = 3;
  1440. if (min_diff > reduce)
  1441. min_diff -= reduce;
  1442. else
  1443. min_diff = 0;
  1444. }
  1445. diff = abs(current_bss->level - selected->level);
  1446. if (diff < min_diff) {
  1447. wpa_dbg(wpa_s, MSG_DEBUG,
  1448. "Skip roam - too small difference in signal level (%d < %d)",
  1449. diff, min_diff);
  1450. return 0;
  1451. }
  1452. wpa_dbg(wpa_s, MSG_DEBUG,
  1453. "Allow reassociation due to difference in signal level (%d >= %d)",
  1454. diff, min_diff);
  1455. return 1;
  1456. #else /* CONFIG_NO_ROAMING */
  1457. return 0;
  1458. #endif /* CONFIG_NO_ROAMING */
  1459. }
  1460. /*
  1461. * Return a negative value if no scan results could be fetched or if scan
  1462. * results should not be shared with other virtual interfaces.
  1463. * Return 0 if scan results were fetched and may be shared with other
  1464. * interfaces.
  1465. * Return 1 if scan results may be shared with other virtual interfaces but may
  1466. * not trigger any operations.
  1467. * Return 2 if the interface was removed and cannot be used.
  1468. */
  1469. static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
  1470. union wpa_event_data *data,
  1471. int own_request, int update_only)
  1472. {
  1473. struct wpa_scan_results *scan_res = NULL;
  1474. int ret = 0;
  1475. int ap = 0;
  1476. #ifndef CONFIG_NO_RANDOM_POOL
  1477. size_t i, num;
  1478. #endif /* CONFIG_NO_RANDOM_POOL */
  1479. #ifdef CONFIG_AP
  1480. if (wpa_s->ap_iface)
  1481. ap = 1;
  1482. #endif /* CONFIG_AP */
  1483. wpa_supplicant_notify_scanning(wpa_s, 0);
  1484. scan_res = wpa_supplicant_get_scan_results(wpa_s,
  1485. data ? &data->scan_info :
  1486. NULL, 1);
  1487. if (scan_res == NULL) {
  1488. if (wpa_s->conf->ap_scan == 2 || ap ||
  1489. wpa_s->scan_res_handler == scan_only_handler)
  1490. return -1;
  1491. if (!own_request)
  1492. return -1;
  1493. if (data && data->scan_info.external_scan)
  1494. return -1;
  1495. wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
  1496. "scanning again");
  1497. wpa_supplicant_req_new_scan(wpa_s, 1, 0);
  1498. ret = -1;
  1499. goto scan_work_done;
  1500. }
  1501. #ifndef CONFIG_NO_RANDOM_POOL
  1502. num = scan_res->num;
  1503. if (num > 10)
  1504. num = 10;
  1505. for (i = 0; i < num; i++) {
  1506. u8 buf[5];
  1507. struct wpa_scan_res *res = scan_res->res[i];
  1508. buf[0] = res->bssid[5];
  1509. buf[1] = res->qual & 0xff;
  1510. buf[2] = res->noise & 0xff;
  1511. buf[3] = res->level & 0xff;
  1512. buf[4] = res->tsf & 0xff;
  1513. random_add_randomness(buf, sizeof(buf));
  1514. }
  1515. #endif /* CONFIG_NO_RANDOM_POOL */
  1516. if (update_only) {
  1517. ret = 1;
  1518. goto scan_work_done;
  1519. }
  1520. if (own_request && wpa_s->scan_res_handler &&
  1521. !(data && data->scan_info.external_scan)) {
  1522. void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
  1523. struct wpa_scan_results *scan_res);
  1524. scan_res_handler = wpa_s->scan_res_handler;
  1525. wpa_s->scan_res_handler = NULL;
  1526. scan_res_handler(wpa_s, scan_res);
  1527. ret = 1;
  1528. goto scan_work_done;
  1529. }
  1530. if (ap) {
  1531. wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
  1532. #ifdef CONFIG_AP
  1533. if (wpa_s->ap_iface->scan_cb)
  1534. wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
  1535. #endif /* CONFIG_AP */
  1536. goto scan_work_done;
  1537. }
  1538. wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
  1539. wpa_s->own_scan_running,
  1540. data ? data->scan_info.external_scan : 0);
  1541. if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
  1542. wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
  1543. own_request && !(data && data->scan_info.external_scan)) {
  1544. wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
  1545. wpa_s->manual_scan_id);
  1546. wpa_s->manual_scan_use_id = 0;
  1547. } else {
  1548. wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
  1549. }
  1550. wpas_notify_scan_results(wpa_s);
  1551. wpas_notify_scan_done(wpa_s, 1);
  1552. if (data && data->scan_info.external_scan) {
  1553. wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
  1554. wpa_scan_results_free(scan_res);
  1555. return 0;
  1556. }
  1557. if (wnm_scan_process(wpa_s, 1) > 0)
  1558. goto scan_work_done;
  1559. if (sme_proc_obss_scan(wpa_s) > 0)
  1560. goto scan_work_done;
  1561. if (own_request &&
  1562. wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
  1563. goto scan_work_done;
  1564. if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
  1565. goto scan_work_done;
  1566. if (autoscan_notify_scan(wpa_s, scan_res))
  1567. goto scan_work_done;
  1568. if (wpa_s->disconnected) {
  1569. wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
  1570. goto scan_work_done;
  1571. }
  1572. if (!wpas_driver_bss_selection(wpa_s) &&
  1573. bgscan_notify_scan(wpa_s, scan_res) == 1)
  1574. goto scan_work_done;
  1575. wpas_wps_update_ap_info(wpa_s, scan_res);
  1576. if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
  1577. wpa_s->wpa_state < WPA_COMPLETED)
  1578. goto scan_work_done;
  1579. wpa_scan_results_free(scan_res);
  1580. if (own_request && wpa_s->scan_work) {
  1581. struct wpa_radio_work *work = wpa_s->scan_work;
  1582. wpa_s->scan_work = NULL;
  1583. radio_work_done(work);
  1584. }
  1585. return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
  1586. scan_work_done:
  1587. wpa_scan_results_free(scan_res);
  1588. if (own_request && wpa_s->scan_work) {
  1589. struct wpa_radio_work *work = wpa_s->scan_work;
  1590. wpa_s->scan_work = NULL;
  1591. radio_work_done(work);
  1592. }
  1593. return ret;
  1594. }
  1595. static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
  1596. int new_scan, int own_request)
  1597. {
  1598. struct wpa_bss *selected;
  1599. struct wpa_ssid *ssid = NULL;
  1600. int time_to_reenable = wpas_reenabled_network_time(wpa_s);
  1601. if (time_to_reenable > 0) {
  1602. wpa_dbg(wpa_s, MSG_DEBUG,
  1603. "Postpone network selection by %d seconds since all networks are disabled",
  1604. time_to_reenable);
  1605. eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
  1606. eloop_register_timeout(time_to_reenable, 0,
  1607. wpas_network_reenabled, wpa_s, NULL);
  1608. return 0;
  1609. }
  1610. if (wpa_s->p2p_mgmt)
  1611. return 0; /* no normal connection on p2p_mgmt interface */
  1612. selected = wpa_supplicant_pick_network(wpa_s, &ssid);
  1613. #ifdef CONFIG_MESH
  1614. if (wpa_s->ifmsh) {
  1615. wpa_msg(wpa_s, MSG_INFO,
  1616. "Avoiding join because we already joined a mesh group");
  1617. return 0;
  1618. }
  1619. #endif /* CONFIG_MESH */
  1620. if (selected) {
  1621. int skip;
  1622. skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
  1623. if (skip) {
  1624. if (new_scan)
  1625. wpa_supplicant_rsn_preauth_scan_results(wpa_s);
  1626. return 0;
  1627. }
  1628. if (ssid != wpa_s->current_ssid &&
  1629. wpa_s->wpa_state >= WPA_AUTHENTICATING) {
  1630. wpa_s->own_disconnect_req = 1;
  1631. wpa_supplicant_deauthenticate(
  1632. wpa_s, WLAN_REASON_DEAUTH_LEAVING);
  1633. }
  1634. if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
  1635. wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
  1636. return -1;
  1637. }
  1638. if (new_scan)
  1639. wpa_supplicant_rsn_preauth_scan_results(wpa_s);
  1640. /*
  1641. * Do not allow other virtual radios to trigger operations based
  1642. * on these scan results since we do not want them to start
  1643. * other associations at the same time.
  1644. */
  1645. return 1;
  1646. } else {
  1647. wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
  1648. ssid = wpa_supplicant_pick_new_network(wpa_s);
  1649. if (ssid) {
  1650. wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
  1651. wpa_supplicant_associate(wpa_s, NULL, ssid);
  1652. if (new_scan)
  1653. wpa_supplicant_rsn_preauth_scan_results(wpa_s);
  1654. } else if (own_request) {
  1655. /*
  1656. * No SSID found. If SCAN results are as a result of
  1657. * own scan request and not due to a scan request on
  1658. * another shared interface, try another scan.
  1659. */
  1660. int timeout_sec = wpa_s->scan_interval;
  1661. int timeout_usec = 0;
  1662. #ifdef CONFIG_P2P
  1663. int res;
  1664. res = wpas_p2p_scan_no_go_seen(wpa_s);
  1665. if (res == 2)
  1666. return 2;
  1667. if (res == 1)
  1668. return 0;
  1669. if (wpa_s->p2p_in_provisioning ||
  1670. wpa_s->show_group_started ||
  1671. wpa_s->p2p_in_invitation) {
  1672. /*
  1673. * Use shorter wait during P2P Provisioning
  1674. * state and during P2P join-a-group operation
  1675. * to speed up group formation.
  1676. */
  1677. timeout_sec = 0;
  1678. timeout_usec = 250000;
  1679. wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
  1680. timeout_usec);
  1681. return 0;
  1682. }
  1683. #endif /* CONFIG_P2P */
  1684. #ifdef CONFIG_INTERWORKING
  1685. if (wpa_s->conf->auto_interworking &&
  1686. wpa_s->conf->interworking &&
  1687. wpa_s->conf->cred) {
  1688. wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
  1689. "start ANQP fetch since no matching "
  1690. "networks found");
  1691. wpa_s->network_select = 1;
  1692. wpa_s->auto_network_select = 1;
  1693. interworking_start_fetch_anqp(wpa_s);
  1694. return 1;
  1695. }
  1696. #endif /* CONFIG_INTERWORKING */
  1697. #ifdef CONFIG_WPS
  1698. if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
  1699. wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
  1700. timeout_sec = 0;
  1701. timeout_usec = 500000;
  1702. wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
  1703. timeout_usec);
  1704. return 0;
  1705. }
  1706. #endif /* CONFIG_WPS */
  1707. if (wpa_supplicant_req_sched_scan(wpa_s))
  1708. wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
  1709. timeout_usec);
  1710. wpa_msg_ctrl(wpa_s, MSG_INFO,
  1711. WPA_EVENT_NETWORK_NOT_FOUND);
  1712. }
  1713. }
  1714. return 0;
  1715. }
  1716. static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
  1717. union wpa_event_data *data)
  1718. {
  1719. struct wpa_supplicant *ifs;
  1720. int res;
  1721. res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
  1722. if (res == 2) {
  1723. /*
  1724. * Interface may have been removed, so must not dereference
  1725. * wpa_s after this.
  1726. */
  1727. return 1;
  1728. }
  1729. if (res < 0) {
  1730. /*
  1731. * If no scan results could be fetched, then no need to
  1732. * notify those interfaces that did not actually request
  1733. * this scan. Similarly, if scan results started a new operation on this
  1734. * interface, do not notify other interfaces to avoid concurrent
  1735. * operations during a connection attempt.
  1736. */
  1737. return 0;
  1738. }
  1739. /*
  1740. * Check other interfaces to see if they share the same radio. If
  1741. * so, they get updated with this same scan info.
  1742. */
  1743. dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
  1744. radio_list) {
  1745. if (ifs != wpa_s) {
  1746. wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
  1747. "sibling", ifs->ifname);
  1748. res = _wpa_supplicant_event_scan_results(ifs, data, 0,
  1749. res > 0);
  1750. if (res < 0)
  1751. return 0;
  1752. }
  1753. }
  1754. return 0;
  1755. }
  1756. #endif /* CONFIG_NO_SCAN_PROCESSING */
  1757. int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
  1758. {
  1759. #ifdef CONFIG_NO_SCAN_PROCESSING
  1760. return -1;
  1761. #else /* CONFIG_NO_SCAN_PROCESSING */
  1762. struct os_reltime now;
  1763. wpa_s->ignore_post_flush_scan_res = 0;
  1764. if (wpa_s->last_scan_res_used == 0)
  1765. return -1;
  1766. os_get_reltime(&now);
  1767. if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
  1768. wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
  1769. return -1;
  1770. }
  1771. return wpas_select_network_from_last_scan(wpa_s, 0, 1);
  1772. #endif /* CONFIG_NO_SCAN_PROCESSING */
  1773. }
  1774. #ifdef CONFIG_WNM
  1775. static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
  1776. {
  1777. struct wpa_supplicant *wpa_s = eloop_ctx;
  1778. if (wpa_s->wpa_state < WPA_ASSOCIATED)
  1779. return;
  1780. if (!wpa_s->no_keep_alive) {
  1781. wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
  1782. MAC2STR(wpa_s->bssid));
  1783. /* TODO: could skip this if normal data traffic has been sent */
  1784. /* TODO: Consider using some more appropriate data frame for
  1785. * this */
  1786. if (wpa_s->l2)
  1787. l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
  1788. (u8 *) "", 0);
  1789. }
  1790. #ifdef CONFIG_SME
  1791. if (wpa_s->sme.bss_max_idle_period) {
  1792. unsigned int msec;
  1793. msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
  1794. if (msec > 100)
  1795. msec -= 100;
  1796. eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
  1797. wnm_bss_keep_alive, wpa_s, NULL);
  1798. }
  1799. #endif /* CONFIG_SME */
  1800. }
  1801. static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
  1802. const u8 *ies, size_t ies_len)
  1803. {
  1804. struct ieee802_11_elems elems;
  1805. if (ies == NULL)
  1806. return;
  1807. if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
  1808. return;
  1809. #ifdef CONFIG_SME
  1810. if (elems.bss_max_idle_period) {
  1811. unsigned int msec;
  1812. wpa_s->sme.bss_max_idle_period =
  1813. WPA_GET_LE16(elems.bss_max_idle_period);
  1814. wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
  1815. "TU)%s", wpa_s->sme.bss_max_idle_period,
  1816. (elems.bss_max_idle_period[2] & 0x01) ?
  1817. " (protected keep-live required)" : "");
  1818. if (wpa_s->sme.bss_max_idle_period == 0)
  1819. wpa_s->sme.bss_max_idle_period = 1;
  1820. if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
  1821. eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
  1822. /* msec times 1000 */
  1823. msec = wpa_s->sme.bss_max_idle_period * 1024;
  1824. if (msec > 100)
  1825. msec -= 100;
  1826. eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
  1827. wnm_bss_keep_alive, wpa_s,
  1828. NULL);
  1829. }
  1830. }
  1831. #endif /* CONFIG_SME */
  1832. }
  1833. #endif /* CONFIG_WNM */
  1834. void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
  1835. {
  1836. #ifdef CONFIG_WNM
  1837. eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
  1838. #endif /* CONFIG_WNM */
  1839. }
  1840. #ifdef CONFIG_INTERWORKING
  1841. static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
  1842. size_t len)
  1843. {
  1844. int res;
  1845. wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
  1846. res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
  1847. if (res) {
  1848. wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
  1849. }
  1850. return res;
  1851. }
  1852. static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
  1853. const u8 *ies, size_t ies_len)
  1854. {
  1855. struct ieee802_11_elems elems;
  1856. if (ies == NULL)
  1857. return;
  1858. if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
  1859. return;
  1860. if (elems.qos_map_set) {
  1861. wpas_qos_map_set(wpa_s, elems.qos_map_set,
  1862. elems.qos_map_set_len);
  1863. }
  1864. }
  1865. #endif /* CONFIG_INTERWORKING */
  1866. #ifdef CONFIG_FST
  1867. static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
  1868. const u8 *ie, size_t ie_len)
  1869. {
  1870. struct mb_ies_info mb_ies;
  1871. if (!ie || !ie_len || !wpa_s->fst)
  1872. return -ENOENT;
  1873. os_memset(&mb_ies, 0, sizeof(mb_ies));
  1874. while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
  1875. size_t len;
  1876. len = 2 + ie[1];
  1877. if (len > ie_len) {
  1878. wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
  1879. ie, ie_len);
  1880. break;
  1881. }
  1882. if (ie[0] == WLAN_EID_MULTI_BAND) {
  1883. wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
  1884. (unsigned int) len);
  1885. mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
  1886. mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
  1887. mb_ies.nof_ies++;
  1888. }
  1889. ie_len -= len;
  1890. ie += len;
  1891. }
  1892. if (mb_ies.nof_ies > 0) {
  1893. wpabuf_free(wpa_s->received_mb_ies);
  1894. wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
  1895. return 0;
  1896. }
  1897. return -ENOENT;
  1898. }
  1899. #endif /* CONFIG_FST */
  1900. static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
  1901. union wpa_event_data *data)
  1902. {
  1903. int l, len, found = 0, wpa_found, rsn_found;
  1904. const u8 *p;
  1905. #ifdef CONFIG_IEEE80211R
  1906. u8 bssid[ETH_ALEN];
  1907. #endif /* CONFIG_IEEE80211R */
  1908. wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
  1909. if (data->assoc_info.req_ies)
  1910. wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
  1911. data->assoc_info.req_ies_len);
  1912. if (data->assoc_info.resp_ies) {
  1913. wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
  1914. data->assoc_info.resp_ies_len);
  1915. #ifdef CONFIG_TDLS
  1916. wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
  1917. data->assoc_info.resp_ies_len);
  1918. #endif /* CONFIG_TDLS */
  1919. #ifdef CONFIG_WNM
  1920. wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
  1921. data->assoc_info.resp_ies_len);
  1922. #endif /* CONFIG_WNM */
  1923. #ifdef CONFIG_INTERWORKING
  1924. interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
  1925. data->assoc_info.resp_ies_len);
  1926. #endif /* CONFIG_INTERWORKING */
  1927. }
  1928. if (data->assoc_info.beacon_ies)
  1929. wpa_hexdump(MSG_DEBUG, "beacon_ies",
  1930. data->assoc_info.beacon_ies,
  1931. data->assoc_info.beacon_ies_len);
  1932. if (data->assoc_info.freq)
  1933. wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
  1934. data->assoc_info.freq);
  1935. p = data->assoc_info.req_ies;
  1936. l = data->assoc_info.req_ies_len;
  1937. /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
  1938. while (p && l >= 2) {
  1939. len = p[1] + 2;
  1940. if (len > l) {
  1941. wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
  1942. p, l);
  1943. break;
  1944. }
  1945. if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
  1946. (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
  1947. (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
  1948. (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
  1949. (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
  1950. if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
  1951. break;
  1952. found = 1;
  1953. wpa_find_assoc_pmkid(wpa_s);
  1954. break;
  1955. }
  1956. l -= len;
  1957. p += len;
  1958. }
  1959. if (!found && data->assoc_info.req_ies)
  1960. wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
  1961. #ifdef CONFIG_FILS
  1962. #ifdef CONFIG_SME
  1963. if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
  1964. wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
  1965. (!data->assoc_info.resp_frame ||
  1966. fils_process_assoc_resp(wpa_s->wpa,
  1967. data->assoc_info.resp_frame,
  1968. data->assoc_info.resp_frame_len) < 0)) {
  1969. wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
  1970. return -1;
  1971. }
  1972. #endif /* CONFIG_SME */
  1973. /* Additional processing for FILS when SME is in driver */
  1974. if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
  1975. !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
  1976. wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
  1977. #endif /* CONFIG_FILS */
  1978. #ifdef CONFIG_OWE
  1979. if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
  1980. (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
  1981. owe_process_assoc_resp(wpa_s->wpa, bssid,
  1982. data->assoc_info.resp_ies,
  1983. data->assoc_info.resp_ies_len) < 0)) {
  1984. wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
  1985. return -1;
  1986. }
  1987. #endif /* CONFIG_OWE */
  1988. #ifdef CONFIG_IEEE80211R
  1989. #ifdef CONFIG_SME
  1990. if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
  1991. if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
  1992. wpa_ft_validate_reassoc_resp(wpa_s->wpa,
  1993. data->assoc_info.resp_ies,
  1994. data->assoc_info.resp_ies_len,
  1995. bssid) < 0) {
  1996. wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
  1997. "Reassociation Response failed");
  1998. wpa_supplicant_deauthenticate(
  1999. wpa_s, WLAN_REASON_INVALID_IE);
  2000. return -1;
  2001. }
  2002. }
  2003. p = data->assoc_info.resp_ies;
  2004. l = data->assoc_info.resp_ies_len;
  2005. #ifdef CONFIG_WPS_STRICT
  2006. if (p && wpa_s->current_ssid &&
  2007. wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
  2008. struct wpabuf *wps;
  2009. wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
  2010. if (wps == NULL) {
  2011. wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
  2012. "include WPS IE in (Re)Association Response");
  2013. return -1;
  2014. }
  2015. if (wps_validate_assoc_resp(wps) < 0) {
  2016. wpabuf_free(wps);
  2017. wpa_supplicant_deauthenticate(
  2018. wpa_s, WLAN_REASON_INVALID_IE);
  2019. return -1;
  2020. }
  2021. wpabuf_free(wps);
  2022. }
  2023. #endif /* CONFIG_WPS_STRICT */
  2024. /* Go through the IEs and make a copy of the MDIE, if present. */
  2025. while (p && l >= 2) {
  2026. len = p[1] + 2;
  2027. if (len > l) {
  2028. wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
  2029. p, l);
  2030. break;
  2031. }
  2032. if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
  2033. p[1] >= MOBILITY_DOMAIN_ID_LEN) {
  2034. wpa_s->sme.ft_used = 1;
  2035. os_memcpy(wpa_s->sme.mobility_domain, p + 2,
  2036. MOBILITY_DOMAIN_ID_LEN);
  2037. break;
  2038. }
  2039. l -= len;
  2040. p += len;
  2041. }
  2042. #endif /* CONFIG_SME */
  2043. /* Process FT when SME is in the driver */
  2044. if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
  2045. wpa_ft_is_completed(wpa_s->wpa)) {
  2046. if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
  2047. wpa_ft_validate_reassoc_resp(wpa_s->wpa,
  2048. data->assoc_info.resp_ies,
  2049. data->assoc_info.resp_ies_len,
  2050. bssid) < 0) {
  2051. wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
  2052. "Reassociation Response failed");
  2053. wpa_supplicant_deauthenticate(
  2054. wpa_s, WLAN_REASON_INVALID_IE);
  2055. return -1;
  2056. }
  2057. wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
  2058. }
  2059. wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
  2060. data->assoc_info.resp_ies_len);
  2061. #endif /* CONFIG_IEEE80211R */
  2062. /* WPA/RSN IE from Beacon/ProbeResp */
  2063. p = data->assoc_info.beacon_ies;
  2064. l = data->assoc_info.beacon_ies_len;
  2065. /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
  2066. */
  2067. wpa_found = rsn_found = 0;
  2068. while (p && l >= 2) {
  2069. len = p[1] + 2;
  2070. if (len > l) {
  2071. wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
  2072. p, l);
  2073. break;
  2074. }
  2075. if (!wpa_found &&
  2076. p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
  2077. os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
  2078. wpa_found = 1;
  2079. wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
  2080. }
  2081. if (!rsn_found &&
  2082. p[0] == WLAN_EID_RSN && p[1] >= 2) {
  2083. rsn_found = 1;
  2084. wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
  2085. }
  2086. l -= len;
  2087. p += len;
  2088. }
  2089. if (!wpa_found && data->assoc_info.beacon_ies)
  2090. wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
  2091. if (!rsn_found && data->assoc_info.beacon_ies)
  2092. wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
  2093. if (wpa_found || rsn_found)
  2094. wpa_s->ap_ies_from_associnfo = 1;
  2095. if (wpa_s->assoc_freq && data->assoc_info.freq &&
  2096. wpa_s->assoc_freq != data->assoc_info.freq) {
  2097. wpa_printf(MSG_DEBUG, "Operating frequency changed from "
  2098. "%u to %u MHz",
  2099. wpa_s->assoc_freq, data->assoc_info.freq);
  2100. wpa_supplicant_update_scan_results(wpa_s);
  2101. }
  2102. wpa_s->assoc_freq = data->assoc_info.freq;
  2103. return 0;
  2104. }
  2105. static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
  2106. {
  2107. const u8 *bss_wpa = NULL, *bss_rsn = NULL;
  2108. if (!wpa_s->current_bss || !wpa_s->current_ssid)
  2109. return -1;
  2110. if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
  2111. return 0;
  2112. bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
  2113. WPA_IE_VENDOR_TYPE);
  2114. bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
  2115. if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
  2116. bss_wpa ? 2 + bss_wpa[1] : 0) ||
  2117. wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
  2118. bss_rsn ? 2 + bss_rsn[1] : 0))
  2119. return -1;
  2120. return 0;
  2121. }
  2122. static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
  2123. union wpa_event_data *data)
  2124. {
  2125. #ifdef CONFIG_FST
  2126. struct assoc_info *ai = data ? &data->assoc_info : NULL;
  2127. struct wpa_bss *bss = wpa_s->current_bss;
  2128. const u8 *ieprb, *iebcn;
  2129. wpabuf_free(wpa_s->received_mb_ies);
  2130. wpa_s->received_mb_ies = NULL;
  2131. if (ai &&
  2132. !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
  2133. wpa_printf(MSG_DEBUG,
  2134. "FST: MB IEs updated from Association Response frame");
  2135. return;
  2136. }
  2137. if (ai &&
  2138. !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
  2139. wpa_printf(MSG_DEBUG,
  2140. "FST: MB IEs updated from association event Beacon IEs");
  2141. return;
  2142. }
  2143. if (!bss)
  2144. return;
  2145. ieprb = (const u8 *) (bss + 1);
  2146. iebcn = ieprb + bss->ie_len;
  2147. if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
  2148. wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
  2149. else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
  2150. wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
  2151. #endif /* CONFIG_FST */
  2152. }
  2153. static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
  2154. union wpa_event_data *data)
  2155. {
  2156. u8 bssid[ETH_ALEN];
  2157. int ft_completed, already_authorized;
  2158. int new_bss = 0;
  2159. #ifdef CONFIG_AP
  2160. if (wpa_s->ap_iface) {
  2161. if (!data)
  2162. return;
  2163. hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
  2164. data->assoc_info.addr,
  2165. data->assoc_info.req_ies,
  2166. data->assoc_info.req_ies_len,
  2167. data->assoc_info.reassoc);
  2168. return;
  2169. }
  2170. #endif /* CONFIG_AP */
  2171. eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
  2172. ft_completed = wpa_ft_is_completed(wpa_s->wpa);
  2173. if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
  2174. return;
  2175. /*
  2176. * FILS authentication can share the same mechanism to mark the
  2177. * connection fully authenticated, so set ft_completed also based on
  2178. * FILS result.
  2179. */
  2180. if (!ft_completed)
  2181. ft_completed = wpa_fils_is_completed(wpa_s->wpa);
  2182. if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
  2183. wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
  2184. wpa_supplicant_deauthenticate(
  2185. wpa_s, WLAN_REASON_DEAUTH_LEAVING);
  2186. return;
  2187. }
  2188. wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
  2189. if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
  2190. wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
  2191. MACSTR, MAC2STR(bssid));
  2192. new_bss = 1;
  2193. random_add_randomness(bssid, ETH_ALEN);
  2194. os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
  2195. os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
  2196. wpas_notify_bssid_changed(wpa_s);
  2197. if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
  2198. wpa_clear_keys(wpa_s, bssid);
  2199. }
  2200. if (wpa_supplicant_select_config(wpa_s) < 0) {
  2201. wpa_supplicant_deauthenticate(
  2202. wpa_s, WLAN_REASON_DEAUTH_LEAVING);
  2203. return;
  2204. }
  2205. }
  2206. if (wpa_s->conf->ap_scan == 1 &&
  2207. wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
  2208. if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
  2209. wpa_msg(wpa_s, MSG_WARNING,
  2210. "WPA/RSN IEs not updated");
  2211. }
  2212. wpas_fst_update_mb_assoc(wpa_s, data);
  2213. #ifdef CONFIG_SME
  2214. os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
  2215. wpa_s->sme.prev_bssid_set = 1;
  2216. wpa_s->sme.last_unprot_disconnect.sec = 0;
  2217. #endif /* CONFIG_SME */
  2218. wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
  2219. if (wpa_s->current_ssid) {
  2220. /* When using scanning (ap_scan=1), SIM PC/SC interface can be
  2221. * initialized before association, but for other modes,
  2222. * initialize PC/SC here, if the current configuration needs
  2223. * smartcard or SIM/USIM. */
  2224. wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
  2225. }
  2226. wpa_sm_notify_assoc(wpa_s->wpa, bssid);
  2227. if (wpa_s->l2)
  2228. l2_packet_notify_auth_start(wpa_s->l2);
  2229. already_authorized = data && data->assoc_info.authorized;
  2230. /*
  2231. * Set portEnabled first to FALSE in order to get EAP state machine out
  2232. * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
  2233. * state machine may transit to AUTHENTICATING state based on obsolete
  2234. * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
  2235. * AUTHENTICATED without ever giving chance to EAP state machine to
  2236. * reset the state.
  2237. */
  2238. if (!ft_completed && !already_authorized) {
  2239. eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
  2240. eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
  2241. }
  2242. if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
  2243. wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
  2244. wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
  2245. already_authorized)
  2246. eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
  2247. /* 802.1X::portControl = Auto */
  2248. eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
  2249. wpa_s->eapol_received = 0;
  2250. if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
  2251. wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
  2252. (wpa_s->current_ssid &&
  2253. wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
  2254. if (wpa_s->current_ssid &&
  2255. wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
  2256. (wpa_s->drv_flags &
  2257. WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
  2258. /*
  2259. * Set the key after having received joined-IBSS event
  2260. * from the driver.
  2261. */
  2262. wpa_supplicant_set_wpa_none_key(wpa_s,
  2263. wpa_s->current_ssid);
  2264. }
  2265. wpa_supplicant_cancel_auth_timeout(wpa_s);
  2266. wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
  2267. } else if (!ft_completed) {
  2268. /* Timeout for receiving the first EAPOL packet */
  2269. wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
  2270. }
  2271. wpa_supplicant_cancel_scan(wpa_s);
  2272. if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
  2273. wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
  2274. /*
  2275. * We are done; the driver will take care of RSN 4-way
  2276. * handshake.
  2277. */
  2278. wpa_supplicant_cancel_auth_timeout(wpa_s);
  2279. wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
  2280. eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
  2281. eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
  2282. } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
  2283. wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
  2284. /*
  2285. * The driver will take care of RSN 4-way handshake, so we need
  2286. * to allow EAPOL supplicant to complete its work without
  2287. * waiting for WPA supplicant.
  2288. */
  2289. eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
  2290. } else if (ft_completed) {
  2291. /*
  2292. * FT protocol completed - make sure EAPOL state machine ends
  2293. * up in authenticated.
  2294. */
  2295. wpa_supplicant_cancel_auth_timeout(wpa_s);
  2296. wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
  2297. eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
  2298. eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
  2299. }
  2300. wpa_s->last_eapol_matches_bssid = 0;
  2301. if (wpa_s->pending_eapol_rx) {
  2302. struct os_reltime now, age;
  2303. os_get_reltime(&now);
  2304. os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
  2305. if (age.sec == 0 && age.usec < 200000 &&
  2306. os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
  2307. 0) {
  2308. wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
  2309. "frame that was received just before "
  2310. "association notification");
  2311. wpa_supplicant_rx_eapol(
  2312. wpa_s, wpa_s->pending_eapol_rx_src,
  2313. wpabuf_head(wpa_s->pending_eapol_rx),
  2314. wpabuf_len(wpa_s->pending_eapol_rx));
  2315. }
  2316. wpabuf_free(wpa_s->pending_eapol_rx);
  2317. wpa_s->pending_eapol_rx = NULL;
  2318. }
  2319. if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
  2320. wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
  2321. wpa_s->current_ssid &&
  2322. (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
  2323. /* Set static WEP keys again */
  2324. wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
  2325. }
  2326. #ifdef CONFIG_IBSS_RSN
  2327. if (wpa_s->current_ssid &&
  2328. wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
  2329. wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
  2330. wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
  2331. wpa_s->ibss_rsn == NULL) {
  2332. wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
  2333. if (!wpa_s->ibss_rsn) {
  2334. wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
  2335. wpa_supplicant_deauthenticate(
  2336. wpa_s, WLAN_REASON_DEAUTH_LEAVING);
  2337. return;
  2338. }
  2339. ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
  2340. }
  2341. #endif /* CONFIG_IBSS_RSN */
  2342. wpas_wps_notify_assoc(wpa_s, bssid);
  2343. if (data) {
  2344. wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
  2345. data->assoc_info.resp_ies_len,
  2346. &data->assoc_info.wmm_params);
  2347. if (wpa_s->reassoc_same_bss)
  2348. wmm_ac_restore_tspecs(wpa_s);
  2349. }
  2350. #ifdef CONFIG_FILS
  2351. if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
  2352. struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, bssid);
  2353. const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
  2354. if (fils_cache_id)
  2355. wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
  2356. }
  2357. #endif /* CONFIG_FILS */
  2358. }
  2359. static int disconnect_reason_recoverable(u16 reason_code)
  2360. {
  2361. return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
  2362. reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
  2363. reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
  2364. }
  2365. static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
  2366. u16 reason_code,
  2367. int locally_generated)
  2368. {
  2369. const u8 *bssid;
  2370. if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
  2371. /*
  2372. * At least Host AP driver and a Prism3 card seemed to be
  2373. * generating streams of disconnected events when configuring
  2374. * IBSS for WPA-None. Ignore them for now.
  2375. */
  2376. return;
  2377. }
  2378. bssid = wpa_s->bssid;
  2379. if (is_zero_ether_addr(bssid))
  2380. bssid = wpa_s->pending_bssid;
  2381. if (!is_zero_ether_addr(bssid) ||
  2382. wpa_s->wpa_state >= WPA_AUTHENTICATING) {
  2383. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
  2384. " reason=%d%s",
  2385. MAC2STR(bssid), reason_code,
  2386. locally_generated ? " locally_generated=1" : "");
  2387. }
  2388. }
  2389. static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
  2390. int locally_generated)
  2391. {
  2392. if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
  2393. !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
  2394. return 0; /* Not in 4-way handshake with PSK */
  2395. /*
  2396. * It looks like connection was lost while trying to go through PSK
  2397. * 4-way handshake. Filter out known disconnection cases that are caused
  2398. * by something else than PSK mismatch to avoid confusing reports.
  2399. */
  2400. if (locally_generated) {
  2401. if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
  2402. return 0;
  2403. }
  2404. return 1;
  2405. }
  2406. static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
  2407. u16 reason_code,
  2408. int locally_generated)
  2409. {
  2410. const u8 *bssid;
  2411. int authenticating;
  2412. u8 prev_pending_bssid[ETH_ALEN];
  2413. struct wpa_bss *fast_reconnect = NULL;
  2414. struct wpa_ssid *fast_reconnect_ssid = NULL;
  2415. struct wpa_ssid *last_ssid;
  2416. struct wpa_bss *curr = NULL;
  2417. authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
  2418. os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
  2419. if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
  2420. /*
  2421. * At least Host AP driver and a Prism3 card seemed to be
  2422. * generating streams of disconnected events when configuring
  2423. * IBSS for WPA-None. Ignore them for now.
  2424. */
  2425. wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
  2426. "IBSS/WPA-None mode");
  2427. return;
  2428. }
  2429. if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
  2430. reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
  2431. locally_generated)
  2432. /*
  2433. * Remove the inactive AP (which is probably out of range) from
  2434. * the BSS list after marking disassociation. In particular
  2435. * mac80211-based drivers use the
  2436. * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
  2437. * locally generated disconnection events for cases where the
  2438. * AP does not reply anymore.
  2439. */
  2440. curr = wpa_s->current_bss;
  2441. if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
  2442. wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
  2443. "pre-shared key may be incorrect");
  2444. if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
  2445. return; /* P2P group removed */
  2446. wpas_auth_failed(wpa_s, "WRONG_KEY");
  2447. }
  2448. if (!wpa_s->disconnected &&
  2449. (!wpa_s->auto_reconnect_disabled ||
  2450. wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
  2451. wpas_wps_searching(wpa_s) ||
  2452. wpas_wps_reenable_networks_pending(wpa_s))) {
  2453. wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
  2454. "reconnect (wps=%d/%d wpa_state=%d)",
  2455. wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
  2456. wpas_wps_searching(wpa_s),
  2457. wpa_s->wpa_state);
  2458. if (wpa_s->wpa_state == WPA_COMPLETED &&
  2459. wpa_s->current_ssid &&
  2460. wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
  2461. !locally_generated &&
  2462. disconnect_reason_recoverable(reason_code)) {
  2463. /*
  2464. * It looks like the AP has dropped association with
  2465. * us, but could allow us to get back in. Try to
  2466. * reconnect to the same BSS without full scan to save
  2467. * time for some common cases.
  2468. */
  2469. fast_reconnect = wpa_s->current_bss;
  2470. fast_reconnect_ssid = wpa_s->current_ssid;
  2471. } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
  2472. wpa_supplicant_req_scan(wpa_s, 0, 100000);
  2473. else
  2474. wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
  2475. "immediate scan");
  2476. } else {
  2477. wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
  2478. "try to re-connect");
  2479. wpa_s->reassociate = 0;
  2480. wpa_s->disconnected = 1;
  2481. if (!wpa_s->pno)
  2482. wpa_supplicant_cancel_sched_scan(wpa_s);
  2483. }
  2484. bssid = wpa_s->bssid;
  2485. if (is_zero_ether_addr(bssid))
  2486. bssid = wpa_s->pending_bssid;
  2487. if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
  2488. wpas_connection_failed(wpa_s, bssid);
  2489. wpa_sm_notify_disassoc(wpa_s->wpa);
  2490. if (locally_generated)
  2491. wpa_s->disconnect_reason = -reason_code;
  2492. else
  2493. wpa_s->disconnect_reason = reason_code;
  2494. wpas_notify_disconnect_reason(wpa_s);
  2495. if (wpa_supplicant_dynamic_keys(wpa_s)) {
  2496. wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
  2497. wpa_clear_keys(wpa_s, wpa_s->bssid);
  2498. }
  2499. last_ssid = wpa_s->current_ssid;
  2500. wpa_supplicant_mark_disassoc(wpa_s);
  2501. if (curr)
  2502. wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
  2503. if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
  2504. sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
  2505. wpa_s->current_ssid = last_ssid;
  2506. }
  2507. if (fast_reconnect &&
  2508. !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
  2509. !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
  2510. !disallowed_ssid(wpa_s, fast_reconnect->ssid,
  2511. fast_reconnect->ssid_len) &&
  2512. !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
  2513. !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
  2514. #ifndef CONFIG_NO_SCAN_PROCESSING
  2515. wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
  2516. if (wpa_supplicant_connect(wpa_s, fast_reconnect,
  2517. fast_reconnect_ssid) < 0) {
  2518. /* Recover through full scan */
  2519. wpa_supplicant_req_scan(wpa_s, 0, 100000);
  2520. }
  2521. #endif /* CONFIG_NO_SCAN_PROCESSING */
  2522. } else if (fast_reconnect) {
  2523. /*
  2524. * Could not reconnect to the same BSS due to network being
  2525. * disabled. Use a new scan to match the alternative behavior
  2526. * above, i.e., to continue automatic reconnection attempt in a
  2527. * way that enforces disabled network rules.
  2528. */
  2529. wpa_supplicant_req_scan(wpa_s, 0, 100000);
  2530. }
  2531. }
  2532. #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
  2533. void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
  2534. {
  2535. struct wpa_supplicant *wpa_s = eloop_ctx;
  2536. if (!wpa_s->pending_mic_error_report)
  2537. return;
  2538. wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
  2539. wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
  2540. wpa_s->pending_mic_error_report = 0;
  2541. }
  2542. #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
  2543. static void
  2544. wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
  2545. union wpa_event_data *data)
  2546. {
  2547. int pairwise;
  2548. struct os_reltime t;
  2549. wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
  2550. pairwise = (data && data->michael_mic_failure.unicast);
  2551. os_get_reltime(&t);
  2552. if ((wpa_s->last_michael_mic_error.sec &&
  2553. !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
  2554. wpa_s->pending_mic_error_report) {
  2555. if (wpa_s->pending_mic_error_report) {
  2556. /*
  2557. * Send the pending MIC error report immediately since
  2558. * we are going to start countermeasures and AP better
  2559. * do the same.
  2560. */
  2561. wpa_sm_key_request(wpa_s->wpa, 1,
  2562. wpa_s->pending_mic_error_pairwise);
  2563. }
  2564. /* Send the new MIC error report immediately since we are going
  2565. * to start countermeasures and AP better do the same.
  2566. */
  2567. wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
  2568. /* initialize countermeasures */
  2569. wpa_s->countermeasures = 1;
  2570. wpa_blacklist_add(wpa_s, wpa_s->bssid);
  2571. wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
  2572. /*
  2573. * Need to wait for completion of request frame. We do not get
  2574. * any callback for the message completion, so just wait a
  2575. * short while and hope for the best. */
  2576. os_sleep(0, 10000);
  2577. wpa_drv_set_countermeasures(wpa_s, 1);
  2578. wpa_supplicant_deauthenticate(wpa_s,
  2579. WLAN_REASON_MICHAEL_MIC_FAILURE);
  2580. eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
  2581. wpa_s, NULL);
  2582. eloop_register_timeout(60, 0,
  2583. wpa_supplicant_stop_countermeasures,
  2584. wpa_s, NULL);
  2585. /* TODO: mark the AP rejected for 60 second. STA is
  2586. * allowed to associate with another AP.. */
  2587. } else {
  2588. #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
  2589. if (wpa_s->mic_errors_seen) {
  2590. /*
  2591. * Reduce the effectiveness of Michael MIC error
  2592. * reports as a means for attacking against TKIP if
  2593. * more than one MIC failure is noticed with the same
  2594. * PTK. We delay the transmission of the reports by a
  2595. * random time between 0 and 60 seconds in order to
  2596. * force the attacker wait 60 seconds before getting
  2597. * the information on whether a frame resulted in a MIC
  2598. * failure.
  2599. */
  2600. u8 rval[4];
  2601. int sec;
  2602. if (os_get_random(rval, sizeof(rval)) < 0)
  2603. sec = os_random() % 60;
  2604. else
  2605. sec = WPA_GET_BE32(rval) % 60;
  2606. wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
  2607. "report %d seconds", sec);
  2608. wpa_s->pending_mic_error_report = 1;
  2609. wpa_s->pending_mic_error_pairwise = pairwise;
  2610. eloop_cancel_timeout(
  2611. wpa_supplicant_delayed_mic_error_report,
  2612. wpa_s, NULL);
  2613. eloop_register_timeout(
  2614. sec, os_random() % 1000000,
  2615. wpa_supplicant_delayed_mic_error_report,
  2616. wpa_s, NULL);
  2617. } else {
  2618. wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
  2619. }
  2620. #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
  2621. wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
  2622. #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
  2623. }
  2624. wpa_s->last_michael_mic_error = t;
  2625. wpa_s->mic_errors_seen++;
  2626. }
  2627. #ifdef CONFIG_TERMINATE_ONLASTIF
  2628. static int any_interfaces(struct wpa_supplicant *head)
  2629. {
  2630. struct wpa_supplicant *wpa_s;
  2631. for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
  2632. if (!wpa_s->interface_removed)
  2633. return 1;
  2634. return 0;
  2635. }
  2636. #endif /* CONFIG_TERMINATE_ONLASTIF */
  2637. static void
  2638. wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
  2639. union wpa_event_data *data)
  2640. {
  2641. if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
  2642. return;
  2643. switch (data->interface_status.ievent) {
  2644. case EVENT_INTERFACE_ADDED:
  2645. if (!wpa_s->interface_removed)
  2646. break;
  2647. wpa_s->interface_removed = 0;
  2648. wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
  2649. if (wpa_supplicant_driver_init(wpa_s) < 0) {
  2650. wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
  2651. "driver after interface was added");
  2652. }
  2653. #ifdef CONFIG_P2P
  2654. if (!wpa_s->global->p2p &&
  2655. !wpa_s->global->p2p_disabled &&
  2656. !wpa_s->conf->p2p_disabled &&
  2657. (wpa_s->drv_flags &
  2658. WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
  2659. wpas_p2p_add_p2pdev_interface(
  2660. wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
  2661. wpa_printf(MSG_INFO,
  2662. "P2P: Failed to enable P2P Device interface");
  2663. /* Try to continue without. P2P will be disabled. */
  2664. }
  2665. #endif /* CONFIG_P2P */
  2666. break;
  2667. case EVENT_INTERFACE_REMOVED:
  2668. wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
  2669. wpa_s->interface_removed = 1;
  2670. wpa_supplicant_mark_disassoc(wpa_s);
  2671. wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
  2672. l2_packet_deinit(wpa_s->l2);
  2673. wpa_s->l2 = NULL;
  2674. #ifdef CONFIG_P2P
  2675. if (wpa_s->global->p2p &&
  2676. wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
  2677. (wpa_s->drv_flags &
  2678. WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
  2679. wpa_dbg(wpa_s, MSG_DEBUG,
  2680. "Removing P2P Device interface");
  2681. wpa_supplicant_remove_iface(
  2682. wpa_s->global, wpa_s->global->p2p_init_wpa_s,
  2683. 0);
  2684. wpa_s->global->p2p_init_wpa_s = NULL;
  2685. }
  2686. #endif /* CONFIG_P2P */
  2687. #ifdef CONFIG_MATCH_IFACE
  2688. if (wpa_s->matched) {
  2689. wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
  2690. break;
  2691. }
  2692. #endif /* CONFIG_MATCH_IFACE */
  2693. #ifdef CONFIG_TERMINATE_ONLASTIF
  2694. /* check if last interface */
  2695. if (!any_interfaces(wpa_s->global->ifaces))
  2696. eloop_terminate();
  2697. #endif /* CONFIG_TERMINATE_ONLASTIF */
  2698. break;
  2699. }
  2700. }
  2701. #ifdef CONFIG_PEERKEY
  2702. static void
  2703. wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
  2704. union wpa_event_data *data)
  2705. {
  2706. if (data == NULL)
  2707. return;
  2708. wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
  2709. }
  2710. #endif /* CONFIG_PEERKEY */
  2711. #ifdef CONFIG_TDLS
  2712. static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
  2713. union wpa_event_data *data)
  2714. {
  2715. if (data == NULL)
  2716. return;
  2717. switch (data->tdls.oper) {
  2718. case TDLS_REQUEST_SETUP:
  2719. wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
  2720. if (wpa_tdls_is_external_setup(wpa_s->wpa))
  2721. wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
  2722. else
  2723. wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
  2724. break;
  2725. case TDLS_REQUEST_TEARDOWN:
  2726. if (wpa_tdls_is_external_setup(wpa_s->wpa))
  2727. wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
  2728. data->tdls.reason_code);
  2729. else
  2730. wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
  2731. data->tdls.peer);
  2732. break;
  2733. case TDLS_REQUEST_DISCOVER:
  2734. wpa_tdls_send_discovery_request(wpa_s->wpa,
  2735. data->tdls.peer);
  2736. break;
  2737. }
  2738. }
  2739. #endif /* CONFIG_TDLS */
  2740. #ifdef CONFIG_WNM
  2741. static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
  2742. union wpa_event_data *data)
  2743. {
  2744. if (data == NULL)
  2745. return;
  2746. switch (data->wnm.oper) {
  2747. case WNM_OPER_SLEEP:
  2748. wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
  2749. "(action=%d, intval=%d)",
  2750. data->wnm.sleep_action, data->wnm.sleep_intval);
  2751. ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
  2752. data->wnm.sleep_intval, NULL);
  2753. break;
  2754. }
  2755. }
  2756. #endif /* CONFIG_WNM */
  2757. #ifdef CONFIG_IEEE80211R
  2758. static void
  2759. wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
  2760. union wpa_event_data *data)
  2761. {
  2762. if (data == NULL)
  2763. return;
  2764. if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
  2765. data->ft_ies.ies_len,
  2766. data->ft_ies.ft_action,
  2767. data->ft_ies.target_ap,
  2768. data->ft_ies.ric_ies,
  2769. data->ft_ies.ric_ies_len) < 0) {
  2770. /* TODO: prevent MLME/driver from trying to associate? */
  2771. }
  2772. }
  2773. #endif /* CONFIG_IEEE80211R */
  2774. #ifdef CONFIG_IBSS_RSN
  2775. static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
  2776. union wpa_event_data *data)
  2777. {
  2778. struct wpa_ssid *ssid;
  2779. if (wpa_s->wpa_state < WPA_ASSOCIATED)
  2780. return;
  2781. if (data == NULL)
  2782. return;
  2783. ssid = wpa_s->current_ssid;
  2784. if (ssid == NULL)
  2785. return;
  2786. if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
  2787. return;
  2788. ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
  2789. }
  2790. static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
  2791. union wpa_event_data *data)
  2792. {
  2793. struct wpa_ssid *ssid = wpa_s->current_ssid;
  2794. if (ssid == NULL)
  2795. return;
  2796. /* check if the ssid is correctly configured as IBSS/RSN */
  2797. if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
  2798. return;
  2799. ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
  2800. data->rx_mgmt.frame_len);
  2801. }
  2802. #endif /* CONFIG_IBSS_RSN */
  2803. #ifdef CONFIG_IEEE80211R
  2804. static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
  2805. size_t len)
  2806. {
  2807. const u8 *sta_addr, *target_ap_addr;
  2808. u16 status;
  2809. wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
  2810. if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
  2811. return; /* only SME case supported for now */
  2812. if (len < 1 + 2 * ETH_ALEN + 2)
  2813. return;
  2814. if (data[0] != 2)
  2815. return; /* Only FT Action Response is supported for now */
  2816. sta_addr = data + 1;
  2817. target_ap_addr = data + 1 + ETH_ALEN;
  2818. status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
  2819. wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
  2820. MACSTR " TargetAP " MACSTR " status %u",
  2821. MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
  2822. if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
  2823. wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
  2824. " in FT Action Response", MAC2STR(sta_addr));
  2825. return;
  2826. }
  2827. if (status) {
  2828. wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
  2829. "failure (status code %d)", status);
  2830. /* TODO: report error to FT code(?) */
  2831. return;
  2832. }
  2833. if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
  2834. len - (1 + 2 * ETH_ALEN + 2), 1,
  2835. target_ap_addr, NULL, 0) < 0)
  2836. return;
  2837. #ifdef CONFIG_SME
  2838. {
  2839. struct wpa_bss *bss;
  2840. bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
  2841. if (bss)
  2842. wpa_s->sme.freq = bss->freq;
  2843. wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
  2844. sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
  2845. WLAN_AUTH_FT);
  2846. }
  2847. #endif /* CONFIG_SME */
  2848. }
  2849. #endif /* CONFIG_IEEE80211R */
  2850. static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
  2851. struct unprot_deauth *e)
  2852. {
  2853. #ifdef CONFIG_IEEE80211W
  2854. wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
  2855. "dropped: " MACSTR " -> " MACSTR
  2856. " (reason code %u)",
  2857. MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
  2858. sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
  2859. #endif /* CONFIG_IEEE80211W */
  2860. }
  2861. static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
  2862. struct unprot_disassoc *e)
  2863. {
  2864. #ifdef CONFIG_IEEE80211W
  2865. wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
  2866. "dropped: " MACSTR " -> " MACSTR
  2867. " (reason code %u)",
  2868. MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
  2869. sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
  2870. #endif /* CONFIG_IEEE80211W */
  2871. }
  2872. static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
  2873. u16 reason_code, int locally_generated,
  2874. const u8 *ie, size_t ie_len, int deauth)
  2875. {
  2876. #ifdef CONFIG_AP
  2877. if (wpa_s->ap_iface && addr) {
  2878. hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
  2879. return;
  2880. }
  2881. if (wpa_s->ap_iface) {
  2882. wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
  2883. return;
  2884. }
  2885. #endif /* CONFIG_AP */
  2886. if (!locally_generated)
  2887. wpa_s->own_disconnect_req = 0;
  2888. wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
  2889. if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
  2890. ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
  2891. (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
  2892. eapol_sm_failed(wpa_s->eapol))) &&
  2893. !wpa_s->eap_expected_failure))
  2894. wpas_auth_failed(wpa_s, "AUTH_FAILED");
  2895. #ifdef CONFIG_P2P
  2896. if (deauth && reason_code > 0) {
  2897. if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
  2898. locally_generated) > 0) {
  2899. /*
  2900. * The interface was removed, so cannot continue
  2901. * processing any additional operations after this.
  2902. */
  2903. return;
  2904. }
  2905. }
  2906. #endif /* CONFIG_P2P */
  2907. wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
  2908. locally_generated);
  2909. }
  2910. static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
  2911. struct disassoc_info *info)
  2912. {
  2913. u16 reason_code = 0;
  2914. int locally_generated = 0;
  2915. const u8 *addr = NULL;
  2916. const u8 *ie = NULL;
  2917. size_t ie_len = 0;
  2918. wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
  2919. if (info) {
  2920. addr = info->addr;
  2921. ie = info->ie;
  2922. ie_len = info->ie_len;
  2923. reason_code = info->reason_code;
  2924. locally_generated = info->locally_generated;
  2925. wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
  2926. locally_generated ? " (locally generated)" : "");
  2927. if (addr)
  2928. wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
  2929. MAC2STR(addr));
  2930. wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
  2931. ie, ie_len);
  2932. }
  2933. #ifdef CONFIG_AP
  2934. if (wpa_s->ap_iface && info && info->addr) {
  2935. hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
  2936. return;
  2937. }
  2938. if (wpa_s->ap_iface) {
  2939. wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
  2940. return;
  2941. }
  2942. #endif /* CONFIG_AP */
  2943. #ifdef CONFIG_P2P
  2944. if (info) {
  2945. wpas_p2p_disassoc_notif(
  2946. wpa_s, info->addr, reason_code, info->ie, info->ie_len,
  2947. locally_generated);
  2948. }
  2949. #endif /* CONFIG_P2P */
  2950. if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
  2951. sme_event_disassoc(wpa_s, info);
  2952. wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
  2953. ie, ie_len, 0);
  2954. }
  2955. static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
  2956. struct deauth_info *info)
  2957. {
  2958. u16 reason_code = 0;
  2959. int locally_generated = 0;
  2960. const u8 *addr = NULL;
  2961. const u8 *ie = NULL;
  2962. size_t ie_len = 0;
  2963. wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
  2964. if (info) {
  2965. addr = info->addr;
  2966. ie = info->ie;
  2967. ie_len = info->ie_len;
  2968. reason_code = info->reason_code;
  2969. locally_generated = info->locally_generated;
  2970. wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
  2971. reason_code,
  2972. locally_generated ? " (locally generated)" : "");
  2973. if (addr) {
  2974. wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
  2975. MAC2STR(addr));
  2976. }
  2977. wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
  2978. ie, ie_len);
  2979. }
  2980. wpa_reset_ft_completed(wpa_s->wpa);
  2981. wpas_event_disconnect(wpa_s, addr, reason_code,
  2982. locally_generated, ie, ie_len, 1);
  2983. }
  2984. static const char * reg_init_str(enum reg_change_initiator init)
  2985. {
  2986. switch (init) {
  2987. case REGDOM_SET_BY_CORE:
  2988. return "CORE";
  2989. case REGDOM_SET_BY_USER:
  2990. return "USER";
  2991. case REGDOM_SET_BY_DRIVER:
  2992. return "DRIVER";
  2993. case REGDOM_SET_BY_COUNTRY_IE:
  2994. return "COUNTRY_IE";
  2995. case REGDOM_BEACON_HINT:
  2996. return "BEACON_HINT";
  2997. }
  2998. return "?";
  2999. }
  3000. static const char * reg_type_str(enum reg_type type)
  3001. {
  3002. switch (type) {
  3003. case REGDOM_TYPE_UNKNOWN:
  3004. return "UNKNOWN";
  3005. case REGDOM_TYPE_COUNTRY:
  3006. return "COUNTRY";
  3007. case REGDOM_TYPE_WORLD:
  3008. return "WORLD";
  3009. case REGDOM_TYPE_CUSTOM_WORLD:
  3010. return "CUSTOM_WORLD";
  3011. case REGDOM_TYPE_INTERSECTION:
  3012. return "INTERSECTION";
  3013. }
  3014. return "?";
  3015. }
  3016. static void wpa_supplicant_update_channel_list(
  3017. struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
  3018. {
  3019. struct wpa_supplicant *ifs;
  3020. u8 dfs_domain;
  3021. /*
  3022. * To allow backwards compatibility with higher level layers that
  3023. * assumed the REGDOM_CHANGE event is sent over the initially added
  3024. * interface. Find the highest parent of this interface and use it to
  3025. * send the event.
  3026. */
  3027. for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
  3028. ;
  3029. wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
  3030. reg_init_str(info->initiator), reg_type_str(info->type),
  3031. info->alpha2[0] ? " alpha2=" : "",
  3032. info->alpha2[0] ? info->alpha2 : "");
  3033. if (wpa_s->drv_priv == NULL)
  3034. return; /* Ignore event during drv initialization */
  3035. dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
  3036. radio_list) {
  3037. wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
  3038. ifs->ifname);
  3039. free_hw_features(ifs);
  3040. ifs->hw.modes = wpa_drv_get_hw_feature_data(
  3041. ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
  3042. /* Restart PNO/sched_scan with updated channel list */
  3043. if (ifs->pno) {
  3044. wpas_stop_pno(ifs);
  3045. wpas_start_pno(ifs);
  3046. } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
  3047. wpa_dbg(ifs, MSG_DEBUG,
  3048. "Channel list changed - restart sched_scan");
  3049. wpas_scan_restart_sched_scan(ifs);
  3050. }
  3051. }
  3052. wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
  3053. }
  3054. static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
  3055. const u8 *frame, size_t len, int freq,
  3056. int rssi)
  3057. {
  3058. const struct ieee80211_mgmt *mgmt;
  3059. const u8 *payload;
  3060. size_t plen;
  3061. u8 category;
  3062. if (len < IEEE80211_HDRLEN + 2)
  3063. return;
  3064. mgmt = (const struct ieee80211_mgmt *) frame;
  3065. payload = frame + IEEE80211_HDRLEN;
  3066. category = *payload++;
  3067. plen = len - IEEE80211_HDRLEN - 1;
  3068. wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
  3069. " Category=%u DataLen=%d freq=%d MHz",
  3070. MAC2STR(mgmt->sa), category, (int) plen, freq);
  3071. if (category == WLAN_ACTION_WMM) {
  3072. wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
  3073. return;
  3074. }
  3075. #ifdef CONFIG_IEEE80211R
  3076. if (category == WLAN_ACTION_FT) {
  3077. ft_rx_action(wpa_s, payload, plen);
  3078. return;
  3079. }
  3080. #endif /* CONFIG_IEEE80211R */
  3081. #ifdef CONFIG_IEEE80211W
  3082. #ifdef CONFIG_SME
  3083. if (category == WLAN_ACTION_SA_QUERY) {
  3084. sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
  3085. return;
  3086. }
  3087. #endif /* CONFIG_SME */
  3088. #endif /* CONFIG_IEEE80211W */
  3089. #ifdef CONFIG_WNM
  3090. if (mgmt->u.action.category == WLAN_ACTION_WNM) {
  3091. ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
  3092. return;
  3093. }
  3094. #endif /* CONFIG_WNM */
  3095. #ifdef CONFIG_GAS
  3096. if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
  3097. mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
  3098. gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
  3099. mgmt->u.action.category,
  3100. payload, plen, freq) == 0)
  3101. return;
  3102. #endif /* CONFIG_GAS */
  3103. #ifdef CONFIG_GAS_SERVER
  3104. if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
  3105. mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
  3106. gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
  3107. mgmt->u.action.category,
  3108. payload, plen, freq) == 0)
  3109. return;
  3110. #endif /* CONFIG_GAS_SERVER */
  3111. #ifdef CONFIG_TDLS
  3112. if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
  3113. payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
  3114. wpa_dbg(wpa_s, MSG_DEBUG,
  3115. "TDLS: Received Discovery Response from " MACSTR,
  3116. MAC2STR(mgmt->sa));
  3117. return;
  3118. }
  3119. #endif /* CONFIG_TDLS */
  3120. #ifdef CONFIG_INTERWORKING
  3121. if (category == WLAN_ACTION_QOS && plen >= 1 &&
  3122. payload[0] == QOS_QOS_MAP_CONFIG) {
  3123. const u8 *pos = payload + 1;
  3124. size_t qlen = plen - 1;
  3125. wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
  3126. MACSTR, MAC2STR(mgmt->sa));
  3127. if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
  3128. qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
  3129. pos[1] <= qlen - 2 && pos[1] >= 16)
  3130. wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
  3131. return;
  3132. }
  3133. #endif /* CONFIG_INTERWORKING */
  3134. if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
  3135. payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
  3136. wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
  3137. mgmt->da,
  3138. payload + 1,
  3139. plen - 1);
  3140. return;
  3141. }
  3142. if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
  3143. payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
  3144. wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
  3145. return;
  3146. }
  3147. if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
  3148. payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
  3149. wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
  3150. payload + 1, plen - 1,
  3151. rssi);
  3152. return;
  3153. }
  3154. #ifdef CONFIG_FST
  3155. if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
  3156. fst_rx_action(wpa_s->fst, mgmt, len);
  3157. return;
  3158. }
  3159. #endif /* CONFIG_FST */
  3160. #ifdef CONFIG_DPP
  3161. if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
  3162. payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
  3163. WPA_GET_BE24(&payload[1]) == OUI_WFA &&
  3164. payload[4] == DPP_OUI_TYPE) {
  3165. payload += 5;
  3166. plen -= 5;
  3167. wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
  3168. return;
  3169. }
  3170. #endif /* CONFIG_DPP */
  3171. wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
  3172. category, payload, plen, freq);
  3173. if (wpa_s->ifmsh)
  3174. mesh_mpm_action_rx(wpa_s, mgmt, len);
  3175. }
  3176. static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
  3177. union wpa_event_data *event)
  3178. {
  3179. struct wpa_freq_range_list *list;
  3180. char *str = NULL;
  3181. list = &event->freq_range;
  3182. if (list->num)
  3183. str = freq_range_list_str(list);
  3184. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
  3185. str ? str : "");
  3186. #ifdef CONFIG_P2P
  3187. if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
  3188. wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
  3189. __func__);
  3190. } else {
  3191. wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
  3192. /*
  3193. * The update channel flow will also take care of moving a GO
  3194. * from the unsafe frequency if needed.
  3195. */
  3196. wpas_p2p_update_channel_list(wpa_s,
  3197. WPAS_P2P_CHANNEL_UPDATE_AVOID);
  3198. }
  3199. #endif /* CONFIG_P2P */
  3200. os_free(str);
  3201. }
  3202. static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
  3203. union wpa_event_data *data)
  3204. {
  3205. wpa_dbg(wpa_s, MSG_DEBUG,
  3206. "Connection authorized by device, previous state %d",
  3207. wpa_s->wpa_state);
  3208. if (wpa_s->wpa_state == WPA_ASSOCIATED) {
  3209. wpa_supplicant_cancel_auth_timeout(wpa_s);
  3210. wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
  3211. eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
  3212. eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
  3213. }
  3214. wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
  3215. data->assoc_info.ptk_kck_len,
  3216. data->assoc_info.ptk_kek,
  3217. data->assoc_info.ptk_kek_len);
  3218. #ifdef CONFIG_FILS
  3219. if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
  3220. struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
  3221. const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
  3222. /* Update ERP next sequence number */
  3223. eapol_sm_update_erp_next_seq_num(
  3224. wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
  3225. if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
  3226. /* Add the new PMK and PMKID to the PMKSA cache */
  3227. wpa_sm_pmksa_cache_add(wpa_s->wpa,
  3228. data->assoc_info.fils_pmk,
  3229. data->assoc_info.fils_pmk_len,
  3230. data->assoc_info.fils_pmkid,
  3231. wpa_s->bssid, fils_cache_id);
  3232. } else if (data->assoc_info.fils_pmkid) {
  3233. /* Update the current PMKSA used for this connection */
  3234. pmksa_cache_set_current(wpa_s->wpa,
  3235. data->assoc_info.fils_pmkid,
  3236. NULL, NULL, 0, NULL);
  3237. }
  3238. } else {
  3239. wpa_sm_set_rx_replay_ctr(wpa_s->wpa,
  3240. data->assoc_info.key_replay_ctr);
  3241. }
  3242. #else /* CONFIG_FILS */
  3243. wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
  3244. #endif /* CONFIG_FILS */
  3245. }
  3246. void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
  3247. union wpa_event_data *data)
  3248. {
  3249. struct wpa_supplicant *wpa_s = ctx;
  3250. int resched;
  3251. if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
  3252. event != EVENT_INTERFACE_ENABLED &&
  3253. event != EVENT_INTERFACE_STATUS &&
  3254. event != EVENT_SCAN_RESULTS &&
  3255. event != EVENT_SCHED_SCAN_STOPPED) {
  3256. wpa_dbg(wpa_s, MSG_DEBUG,
  3257. "Ignore event %s (%d) while interface is disabled",
  3258. event_to_string(event), event);
  3259. return;
  3260. }
  3261. #ifndef CONFIG_NO_STDOUT_DEBUG
  3262. {
  3263. int level = MSG_DEBUG;
  3264. if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
  3265. const struct ieee80211_hdr *hdr;
  3266. u16 fc;
  3267. hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
  3268. fc = le_to_host16(hdr->frame_control);
  3269. if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
  3270. WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
  3271. level = MSG_EXCESSIVE;
  3272. }
  3273. wpa_dbg(wpa_s, level, "Event %s (%d) received",
  3274. event_to_string(event), event);
  3275. }
  3276. #endif /* CONFIG_NO_STDOUT_DEBUG */
  3277. switch (event) {
  3278. case EVENT_AUTH:
  3279. #ifdef CONFIG_FST
  3280. if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
  3281. data->auth.ies_len))
  3282. wpa_printf(MSG_DEBUG,
  3283. "FST: MB IEs updated from auth IE");
  3284. #endif /* CONFIG_FST */
  3285. sme_event_auth(wpa_s, data);
  3286. break;
  3287. case EVENT_ASSOC:
  3288. #ifdef CONFIG_TESTING_OPTIONS
  3289. if (wpa_s->ignore_auth_resp) {
  3290. wpa_printf(MSG_INFO,
  3291. "EVENT_ASSOC - ignore_auth_resp active!");
  3292. break;
  3293. }
  3294. #endif /* CONFIG_TESTING_OPTIONS */
  3295. wpa_supplicant_event_assoc(wpa_s, data);
  3296. if (data &&
  3297. (data->assoc_info.authorized ||
  3298. (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
  3299. wpa_fils_is_completed(wpa_s->wpa))))
  3300. wpa_supplicant_event_assoc_auth(wpa_s, data);
  3301. if (data) {
  3302. wpa_msg(wpa_s, MSG_INFO,
  3303. WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
  3304. data->assoc_info.subnet_status);
  3305. }
  3306. break;
  3307. case EVENT_DISASSOC:
  3308. wpas_event_disassoc(wpa_s,
  3309. data ? &data->disassoc_info : NULL);
  3310. break;
  3311. case EVENT_DEAUTH:
  3312. #ifdef CONFIG_TESTING_OPTIONS
  3313. if (wpa_s->ignore_auth_resp) {
  3314. wpa_printf(MSG_INFO,
  3315. "EVENT_DEAUTH - ignore_auth_resp active!");
  3316. break;
  3317. }
  3318. #endif /* CONFIG_TESTING_OPTIONS */
  3319. wpas_event_deauth(wpa_s,
  3320. data ? &data->deauth_info : NULL);
  3321. break;
  3322. case EVENT_MICHAEL_MIC_FAILURE:
  3323. wpa_supplicant_event_michael_mic_failure(wpa_s, data);
  3324. break;
  3325. #ifndef CONFIG_NO_SCAN_PROCESSING
  3326. case EVENT_SCAN_STARTED:
  3327. if (wpa_s->own_scan_requested ||
  3328. (data && !data->scan_info.external_scan)) {
  3329. struct os_reltime diff;
  3330. os_get_reltime(&wpa_s->scan_start_time);
  3331. os_reltime_sub(&wpa_s->scan_start_time,
  3332. &wpa_s->scan_trigger_time, &diff);
  3333. wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
  3334. diff.sec, diff.usec);
  3335. wpa_s->own_scan_requested = 0;
  3336. wpa_s->own_scan_running = 1;
  3337. if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
  3338. wpa_s->manual_scan_use_id) {
  3339. wpa_msg_ctrl(wpa_s, MSG_INFO,
  3340. WPA_EVENT_SCAN_STARTED "id=%u",
  3341. wpa_s->manual_scan_id);
  3342. } else {
  3343. wpa_msg_ctrl(wpa_s, MSG_INFO,
  3344. WPA_EVENT_SCAN_STARTED);
  3345. }
  3346. } else {
  3347. wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
  3348. wpa_s->radio->external_scan_running = 1;
  3349. wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
  3350. }
  3351. break;
  3352. case EVENT_SCAN_RESULTS:
  3353. if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
  3354. wpa_s->scan_res_handler = NULL;
  3355. wpa_s->own_scan_running = 0;
  3356. wpa_s->radio->external_scan_running = 0;
  3357. wpa_s->last_scan_req = NORMAL_SCAN_REQ;
  3358. break;
  3359. }
  3360. if (!(data && data->scan_info.external_scan) &&
  3361. os_reltime_initialized(&wpa_s->scan_start_time)) {
  3362. struct os_reltime now, diff;
  3363. os_get_reltime(&now);
  3364. os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
  3365. wpa_s->scan_start_time.sec = 0;
  3366. wpa_s->scan_start_time.usec = 0;
  3367. wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
  3368. diff.sec, diff.usec);
  3369. }
  3370. if (wpa_supplicant_event_scan_results(wpa_s, data))
  3371. break; /* interface may have been removed */
  3372. if (!(data && data->scan_info.external_scan))
  3373. wpa_s->own_scan_running = 0;
  3374. if (data && data->scan_info.nl_scan_event)
  3375. wpa_s->radio->external_scan_running = 0;
  3376. radio_work_check_next(wpa_s);
  3377. break;
  3378. #endif /* CONFIG_NO_SCAN_PROCESSING */
  3379. case EVENT_ASSOCINFO:
  3380. wpa_supplicant_event_associnfo(wpa_s, data);
  3381. break;
  3382. case EVENT_INTERFACE_STATUS:
  3383. wpa_supplicant_event_interface_status(wpa_s, data);
  3384. break;
  3385. case EVENT_PMKID_CANDIDATE:
  3386. wpa_supplicant_event_pmkid_candidate(wpa_s, data);
  3387. break;
  3388. #ifdef CONFIG_PEERKEY
  3389. case EVENT_STKSTART:
  3390. wpa_supplicant_event_stkstart(wpa_s, data);
  3391. break;
  3392. #endif /* CONFIG_PEERKEY */
  3393. #ifdef CONFIG_TDLS
  3394. case EVENT_TDLS:
  3395. wpa_supplicant_event_tdls(wpa_s, data);
  3396. break;
  3397. #endif /* CONFIG_TDLS */
  3398. #ifdef CONFIG_WNM
  3399. case EVENT_WNM:
  3400. wpa_supplicant_event_wnm(wpa_s, data);
  3401. break;
  3402. #endif /* CONFIG_WNM */
  3403. #ifdef CONFIG_IEEE80211R
  3404. case EVENT_FT_RESPONSE:
  3405. wpa_supplicant_event_ft_response(wpa_s, data);
  3406. break;
  3407. #endif /* CONFIG_IEEE80211R */
  3408. #ifdef CONFIG_IBSS_RSN
  3409. case EVENT_IBSS_RSN_START:
  3410. wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
  3411. break;
  3412. #endif /* CONFIG_IBSS_RSN */
  3413. case EVENT_ASSOC_REJECT:
  3414. if (data->assoc_reject.bssid)
  3415. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
  3416. "bssid=" MACSTR " status_code=%u%s%s%s",
  3417. MAC2STR(data->assoc_reject.bssid),
  3418. data->assoc_reject.status_code,
  3419. data->assoc_reject.timed_out ? " timeout" : "",
  3420. data->assoc_reject.timeout_reason ? "=" : "",
  3421. data->assoc_reject.timeout_reason ?
  3422. data->assoc_reject.timeout_reason : "");
  3423. else
  3424. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
  3425. "status_code=%u%s%s%s",
  3426. data->assoc_reject.status_code,
  3427. data->assoc_reject.timed_out ? " timeout" : "",
  3428. data->assoc_reject.timeout_reason ? "=" : "",
  3429. data->assoc_reject.timeout_reason ?
  3430. data->assoc_reject.timeout_reason : "");
  3431. wpa_s->assoc_status_code = data->assoc_reject.status_code;
  3432. wpas_notify_assoc_status_code(wpa_s);
  3433. if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
  3434. sme_event_assoc_reject(wpa_s, data);
  3435. else {
  3436. const u8 *bssid = data->assoc_reject.bssid;
  3437. #ifdef CONFIG_FILS
  3438. /* Update ERP next sequence number */
  3439. if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS)
  3440. eapol_sm_update_erp_next_seq_num(
  3441. wpa_s->eapol,
  3442. data->assoc_reject.fils_erp_next_seq_num);
  3443. #endif /* CONFIG_FILS */
  3444. if (bssid == NULL || is_zero_ether_addr(bssid))
  3445. bssid = wpa_s->pending_bssid;
  3446. wpas_connection_failed(wpa_s, bssid);
  3447. wpa_supplicant_mark_disassoc(wpa_s);
  3448. }
  3449. break;
  3450. case EVENT_AUTH_TIMED_OUT:
  3451. /* It is possible to get this event from earlier connection */
  3452. if (wpa_s->current_ssid &&
  3453. wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
  3454. wpa_dbg(wpa_s, MSG_DEBUG,
  3455. "Ignore AUTH_TIMED_OUT in mesh configuration");
  3456. break;
  3457. }
  3458. if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
  3459. sme_event_auth_timed_out(wpa_s, data);
  3460. break;
  3461. case EVENT_ASSOC_TIMED_OUT:
  3462. /* It is possible to get this event from earlier connection */
  3463. if (wpa_s->current_ssid &&
  3464. wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
  3465. wpa_dbg(wpa_s, MSG_DEBUG,
  3466. "Ignore ASSOC_TIMED_OUT in mesh configuration");
  3467. break;
  3468. }
  3469. if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
  3470. sme_event_assoc_timed_out(wpa_s, data);
  3471. break;
  3472. case EVENT_TX_STATUS:
  3473. wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
  3474. " type=%d stype=%d",
  3475. MAC2STR(data->tx_status.dst),
  3476. data->tx_status.type, data->tx_status.stype);
  3477. #ifdef CONFIG_AP
  3478. if (wpa_s->ap_iface == NULL) {
  3479. #ifdef CONFIG_OFFCHANNEL
  3480. if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
  3481. data->tx_status.stype == WLAN_FC_STYPE_ACTION)
  3482. offchannel_send_action_tx_status(
  3483. wpa_s, data->tx_status.dst,
  3484. data->tx_status.data,
  3485. data->tx_status.data_len,
  3486. data->tx_status.ack ?
  3487. OFFCHANNEL_SEND_ACTION_SUCCESS :
  3488. OFFCHANNEL_SEND_ACTION_NO_ACK);
  3489. #endif /* CONFIG_OFFCHANNEL */
  3490. break;
  3491. }
  3492. #endif /* CONFIG_AP */
  3493. #ifdef CONFIG_OFFCHANNEL
  3494. wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
  3495. MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
  3496. /*
  3497. * Catch TX status events for Action frames we sent via group
  3498. * interface in GO mode, or via standalone AP interface.
  3499. * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
  3500. * except when the primary interface is used as a GO interface
  3501. * (for drivers which do not have group interface concurrency)
  3502. */
  3503. if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
  3504. data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
  3505. os_memcmp(wpa_s->p2pdev->pending_action_dst,
  3506. data->tx_status.dst, ETH_ALEN) == 0) {
  3507. offchannel_send_action_tx_status(
  3508. wpa_s->p2pdev, data->tx_status.dst,
  3509. data->tx_status.data,
  3510. data->tx_status.data_len,
  3511. data->tx_status.ack ?
  3512. OFFCHANNEL_SEND_ACTION_SUCCESS :
  3513. OFFCHANNEL_SEND_ACTION_NO_ACK);
  3514. break;
  3515. }
  3516. #endif /* CONFIG_OFFCHANNEL */
  3517. #ifdef CONFIG_AP
  3518. switch (data->tx_status.type) {
  3519. case WLAN_FC_TYPE_MGMT:
  3520. ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
  3521. data->tx_status.data_len,
  3522. data->tx_status.stype,
  3523. data->tx_status.ack);
  3524. break;
  3525. case WLAN_FC_TYPE_DATA:
  3526. ap_tx_status(wpa_s, data->tx_status.dst,
  3527. data->tx_status.data,
  3528. data->tx_status.data_len,
  3529. data->tx_status.ack);
  3530. break;
  3531. }
  3532. #endif /* CONFIG_AP */
  3533. break;
  3534. #ifdef CONFIG_AP
  3535. case EVENT_EAPOL_TX_STATUS:
  3536. ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
  3537. data->eapol_tx_status.data,
  3538. data->eapol_tx_status.data_len,
  3539. data->eapol_tx_status.ack);
  3540. break;
  3541. case EVENT_DRIVER_CLIENT_POLL_OK:
  3542. ap_client_poll_ok(wpa_s, data->client_poll.addr);
  3543. break;
  3544. case EVENT_RX_FROM_UNKNOWN:
  3545. if (wpa_s->ap_iface == NULL)
  3546. break;
  3547. ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
  3548. data->rx_from_unknown.wds);
  3549. break;
  3550. case EVENT_CH_SWITCH:
  3551. if (!data || !wpa_s->current_ssid)
  3552. break;
  3553. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
  3554. "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
  3555. data->ch_switch.freq,
  3556. data->ch_switch.ht_enabled,
  3557. data->ch_switch.ch_offset,
  3558. channel_width_to_string(data->ch_switch.ch_width),
  3559. data->ch_switch.cf1,
  3560. data->ch_switch.cf2);
  3561. wpa_s->assoc_freq = data->ch_switch.freq;
  3562. wpa_s->current_ssid->frequency = data->ch_switch.freq;
  3563. if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
  3564. wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
  3565. wpa_s->current_ssid->mode ==
  3566. WPAS_MODE_P2P_GROUP_FORMATION) {
  3567. wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
  3568. data->ch_switch.ht_enabled,
  3569. data->ch_switch.ch_offset,
  3570. data->ch_switch.ch_width,
  3571. data->ch_switch.cf1,
  3572. data->ch_switch.cf2);
  3573. }
  3574. wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
  3575. break;
  3576. #ifdef NEED_AP_MLME
  3577. case EVENT_DFS_RADAR_DETECTED:
  3578. if (data)
  3579. wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
  3580. break;
  3581. case EVENT_DFS_CAC_STARTED:
  3582. if (data)
  3583. wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
  3584. break;
  3585. case EVENT_DFS_CAC_FINISHED:
  3586. if (data)
  3587. wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
  3588. break;
  3589. case EVENT_DFS_CAC_ABORTED:
  3590. if (data)
  3591. wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
  3592. break;
  3593. case EVENT_DFS_NOP_FINISHED:
  3594. if (data)
  3595. wpas_event_dfs_cac_nop_finished(wpa_s,
  3596. &data->dfs_event);
  3597. break;
  3598. #endif /* NEED_AP_MLME */
  3599. #endif /* CONFIG_AP */
  3600. case EVENT_RX_MGMT: {
  3601. u16 fc, stype;
  3602. const struct ieee80211_mgmt *mgmt;
  3603. #ifdef CONFIG_TESTING_OPTIONS
  3604. if (wpa_s->ext_mgmt_frame_handling) {
  3605. struct rx_mgmt *rx = &data->rx_mgmt;
  3606. size_t hex_len = 2 * rx->frame_len + 1;
  3607. char *hex = os_malloc(hex_len);
  3608. if (hex) {
  3609. wpa_snprintf_hex(hex, hex_len,
  3610. rx->frame, rx->frame_len);
  3611. wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
  3612. rx->freq, rx->datarate, rx->ssi_signal,
  3613. hex);
  3614. os_free(hex);
  3615. }
  3616. break;
  3617. }
  3618. #endif /* CONFIG_TESTING_OPTIONS */
  3619. mgmt = (const struct ieee80211_mgmt *)
  3620. data->rx_mgmt.frame;
  3621. fc = le_to_host16(mgmt->frame_control);
  3622. stype = WLAN_FC_GET_STYPE(fc);
  3623. #ifdef CONFIG_AP
  3624. if (wpa_s->ap_iface == NULL) {
  3625. #endif /* CONFIG_AP */
  3626. #ifdef CONFIG_P2P
  3627. if (stype == WLAN_FC_STYPE_PROBE_REQ &&
  3628. data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
  3629. const u8 *src = mgmt->sa;
  3630. const u8 *ie;
  3631. size_t ie_len;
  3632. ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
  3633. ie_len = data->rx_mgmt.frame_len -
  3634. IEEE80211_HDRLEN;
  3635. wpas_p2p_probe_req_rx(
  3636. wpa_s, src, mgmt->da,
  3637. mgmt->bssid, ie, ie_len,
  3638. data->rx_mgmt.freq,
  3639. data->rx_mgmt.ssi_signal);
  3640. break;
  3641. }
  3642. #endif /* CONFIG_P2P */
  3643. #ifdef CONFIG_IBSS_RSN
  3644. if (wpa_s->current_ssid &&
  3645. wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
  3646. stype == WLAN_FC_STYPE_AUTH &&
  3647. data->rx_mgmt.frame_len >= 30) {
  3648. wpa_supplicant_event_ibss_auth(wpa_s, data);
  3649. break;
  3650. }
  3651. #endif /* CONFIG_IBSS_RSN */
  3652. if (stype == WLAN_FC_STYPE_ACTION) {
  3653. wpas_event_rx_mgmt_action(
  3654. wpa_s, data->rx_mgmt.frame,
  3655. data->rx_mgmt.frame_len,
  3656. data->rx_mgmt.freq,
  3657. data->rx_mgmt.ssi_signal);
  3658. break;
  3659. }
  3660. if (wpa_s->ifmsh) {
  3661. mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
  3662. break;
  3663. }
  3664. wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
  3665. "management frame in non-AP mode");
  3666. break;
  3667. #ifdef CONFIG_AP
  3668. }
  3669. if (stype == WLAN_FC_STYPE_PROBE_REQ &&
  3670. data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
  3671. const u8 *ie;
  3672. size_t ie_len;
  3673. ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
  3674. ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
  3675. wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
  3676. mgmt->bssid, ie, ie_len,
  3677. data->rx_mgmt.ssi_signal);
  3678. }
  3679. ap_mgmt_rx(wpa_s, &data->rx_mgmt);
  3680. #endif /* CONFIG_AP */
  3681. break;
  3682. }
  3683. case EVENT_RX_PROBE_REQ:
  3684. if (data->rx_probe_req.sa == NULL ||
  3685. data->rx_probe_req.ie == NULL)
  3686. break;
  3687. #ifdef CONFIG_AP
  3688. if (wpa_s->ap_iface) {
  3689. hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
  3690. data->rx_probe_req.sa,
  3691. data->rx_probe_req.da,
  3692. data->rx_probe_req.bssid,
  3693. data->rx_probe_req.ie,
  3694. data->rx_probe_req.ie_len,
  3695. data->rx_probe_req.ssi_signal);
  3696. break;
  3697. }
  3698. #endif /* CONFIG_AP */
  3699. wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
  3700. data->rx_probe_req.da,
  3701. data->rx_probe_req.bssid,
  3702. data->rx_probe_req.ie,
  3703. data->rx_probe_req.ie_len,
  3704. 0,
  3705. data->rx_probe_req.ssi_signal);
  3706. break;
  3707. case EVENT_REMAIN_ON_CHANNEL:
  3708. #ifdef CONFIG_OFFCHANNEL
  3709. offchannel_remain_on_channel_cb(
  3710. wpa_s, data->remain_on_channel.freq,
  3711. data->remain_on_channel.duration);
  3712. #endif /* CONFIG_OFFCHANNEL */
  3713. wpas_p2p_remain_on_channel_cb(
  3714. wpa_s, data->remain_on_channel.freq,
  3715. data->remain_on_channel.duration);
  3716. break;
  3717. case EVENT_CANCEL_REMAIN_ON_CHANNEL:
  3718. #ifdef CONFIG_OFFCHANNEL
  3719. offchannel_cancel_remain_on_channel_cb(
  3720. wpa_s, data->remain_on_channel.freq);
  3721. #endif /* CONFIG_OFFCHANNEL */
  3722. wpas_p2p_cancel_remain_on_channel_cb(
  3723. wpa_s, data->remain_on_channel.freq);
  3724. #ifdef CONFIG_DPP
  3725. wpas_dpp_cancel_remain_on_channel_cb(
  3726. wpa_s, data->remain_on_channel.freq);
  3727. #endif /* CONFIG_DPP */
  3728. break;
  3729. case EVENT_EAPOL_RX:
  3730. wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
  3731. data->eapol_rx.data,
  3732. data->eapol_rx.data_len);
  3733. break;
  3734. case EVENT_SIGNAL_CHANGE:
  3735. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
  3736. "above=%d signal=%d noise=%d txrate=%d",
  3737. data->signal_change.above_threshold,
  3738. data->signal_change.current_signal,
  3739. data->signal_change.current_noise,
  3740. data->signal_change.current_txrate);
  3741. wpa_bss_update_level(wpa_s->current_bss,
  3742. data->signal_change.current_signal);
  3743. bgscan_notify_signal_change(
  3744. wpa_s, data->signal_change.above_threshold,
  3745. data->signal_change.current_signal,
  3746. data->signal_change.current_noise,
  3747. data->signal_change.current_txrate);
  3748. break;
  3749. case EVENT_INTERFACE_ENABLED:
  3750. wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
  3751. if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
  3752. wpa_supplicant_update_mac_addr(wpa_s);
  3753. if (wpa_s->p2p_mgmt) {
  3754. wpa_supplicant_set_state(wpa_s,
  3755. WPA_DISCONNECTED);
  3756. break;
  3757. }
  3758. #ifdef CONFIG_AP
  3759. if (!wpa_s->ap_iface) {
  3760. wpa_supplicant_set_state(wpa_s,
  3761. WPA_DISCONNECTED);
  3762. wpa_s->scan_req = NORMAL_SCAN_REQ;
  3763. wpa_supplicant_req_scan(wpa_s, 0, 0);
  3764. } else
  3765. wpa_supplicant_set_state(wpa_s,
  3766. WPA_COMPLETED);
  3767. #else /* CONFIG_AP */
  3768. wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
  3769. wpa_supplicant_req_scan(wpa_s, 0, 0);
  3770. #endif /* CONFIG_AP */
  3771. }
  3772. break;
  3773. case EVENT_INTERFACE_DISABLED:
  3774. wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
  3775. #ifdef CONFIG_P2P
  3776. if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
  3777. (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
  3778. wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
  3779. /*
  3780. * Mark interface disabled if this happens to end up not
  3781. * being removed as a separate P2P group interface.
  3782. */
  3783. wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
  3784. /*
  3785. * The interface was externally disabled. Remove
  3786. * it assuming an external entity will start a
  3787. * new session if needed.
  3788. */
  3789. if (wpa_s->current_ssid &&
  3790. wpa_s->current_ssid->p2p_group)
  3791. wpas_p2p_interface_unavailable(wpa_s);
  3792. else
  3793. wpas_p2p_disconnect(wpa_s);
  3794. /*
  3795. * wpa_s instance may have been freed, so must not use
  3796. * it here anymore.
  3797. */
  3798. break;
  3799. }
  3800. if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
  3801. p2p_in_progress(wpa_s->global->p2p) > 1) {
  3802. /* This radio work will be cancelled, so clear P2P
  3803. * state as well.
  3804. */
  3805. p2p_stop_find(wpa_s->global->p2p);
  3806. }
  3807. #endif /* CONFIG_P2P */
  3808. if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
  3809. /*
  3810. * Indicate disconnection to keep ctrl_iface events
  3811. * consistent.
  3812. */
  3813. wpa_supplicant_event_disassoc(
  3814. wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
  3815. }
  3816. wpa_supplicant_mark_disassoc(wpa_s);
  3817. wpa_bss_flush(wpa_s);
  3818. radio_remove_works(wpa_s, NULL, 0);
  3819. wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
  3820. break;
  3821. case EVENT_CHANNEL_LIST_CHANGED:
  3822. wpa_supplicant_update_channel_list(
  3823. wpa_s, &data->channel_list_changed);
  3824. break;
  3825. case EVENT_INTERFACE_UNAVAILABLE:
  3826. wpas_p2p_interface_unavailable(wpa_s);
  3827. break;
  3828. case EVENT_BEST_CHANNEL:
  3829. wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
  3830. "(%d %d %d)",
  3831. data->best_chan.freq_24, data->best_chan.freq_5,
  3832. data->best_chan.freq_overall);
  3833. wpa_s->best_24_freq = data->best_chan.freq_24;
  3834. wpa_s->best_5_freq = data->best_chan.freq_5;
  3835. wpa_s->best_overall_freq = data->best_chan.freq_overall;
  3836. wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
  3837. data->best_chan.freq_5,
  3838. data->best_chan.freq_overall);
  3839. break;
  3840. case EVENT_UNPROT_DEAUTH:
  3841. wpa_supplicant_event_unprot_deauth(wpa_s,
  3842. &data->unprot_deauth);
  3843. break;
  3844. case EVENT_UNPROT_DISASSOC:
  3845. wpa_supplicant_event_unprot_disassoc(wpa_s,
  3846. &data->unprot_disassoc);
  3847. break;
  3848. case EVENT_STATION_LOW_ACK:
  3849. #ifdef CONFIG_AP
  3850. if (wpa_s->ap_iface && data)
  3851. hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
  3852. data->low_ack.addr);
  3853. #endif /* CONFIG_AP */
  3854. #ifdef CONFIG_TDLS
  3855. if (data)
  3856. wpa_tdls_disable_unreachable_link(wpa_s->wpa,
  3857. data->low_ack.addr);
  3858. #endif /* CONFIG_TDLS */
  3859. break;
  3860. case EVENT_IBSS_PEER_LOST:
  3861. #ifdef CONFIG_IBSS_RSN
  3862. ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
  3863. #endif /* CONFIG_IBSS_RSN */
  3864. break;
  3865. case EVENT_DRIVER_GTK_REKEY:
  3866. if (os_memcmp(data->driver_gtk_rekey.bssid,
  3867. wpa_s->bssid, ETH_ALEN))
  3868. break;
  3869. if (!wpa_s->wpa)
  3870. break;
  3871. wpa_sm_update_replay_ctr(wpa_s->wpa,
  3872. data->driver_gtk_rekey.replay_ctr);
  3873. break;
  3874. case EVENT_SCHED_SCAN_STOPPED:
  3875. wpa_s->sched_scanning = 0;
  3876. resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
  3877. wpa_supplicant_notify_scanning(wpa_s, 0);
  3878. if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
  3879. break;
  3880. /*
  3881. * If the driver stopped scanning without being requested to,
  3882. * request a new scan to continue scanning for networks.
  3883. */
  3884. if (!wpa_s->sched_scan_stop_req &&
  3885. wpa_s->wpa_state == WPA_SCANNING) {
  3886. wpa_dbg(wpa_s, MSG_DEBUG,
  3887. "Restart scanning after unexpected sched_scan stop event");
  3888. wpa_supplicant_req_scan(wpa_s, 1, 0);
  3889. break;
  3890. }
  3891. wpa_s->sched_scan_stop_req = 0;
  3892. /*
  3893. * Start a new sched scan to continue searching for more SSIDs
  3894. * either if timed out or PNO schedule scan is pending.
  3895. */
  3896. if (wpa_s->sched_scan_timed_out) {
  3897. wpa_supplicant_req_sched_scan(wpa_s);
  3898. } else if (wpa_s->pno_sched_pending) {
  3899. wpa_s->pno_sched_pending = 0;
  3900. wpas_start_pno(wpa_s);
  3901. } else if (resched) {
  3902. wpa_supplicant_req_scan(wpa_s, 0, 0);
  3903. }
  3904. break;
  3905. case EVENT_WPS_BUTTON_PUSHED:
  3906. #ifdef CONFIG_WPS
  3907. wpas_wps_start_pbc(wpa_s, NULL, 0);
  3908. #endif /* CONFIG_WPS */
  3909. break;
  3910. case EVENT_AVOID_FREQUENCIES:
  3911. wpa_supplicant_notify_avoid_freq(wpa_s, data);
  3912. break;
  3913. case EVENT_CONNECT_FAILED_REASON:
  3914. #ifdef CONFIG_AP
  3915. if (!wpa_s->ap_iface || !data)
  3916. break;
  3917. hostapd_event_connect_failed_reason(
  3918. wpa_s->ap_iface->bss[0],
  3919. data->connect_failed_reason.addr,
  3920. data->connect_failed_reason.code);
  3921. #endif /* CONFIG_AP */
  3922. break;
  3923. case EVENT_NEW_PEER_CANDIDATE:
  3924. #ifdef CONFIG_MESH
  3925. if (!wpa_s->ifmsh || !data)
  3926. break;
  3927. wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
  3928. data->mesh_peer.ies,
  3929. data->mesh_peer.ie_len);
  3930. #endif /* CONFIG_MESH */
  3931. break;
  3932. case EVENT_SURVEY:
  3933. #ifdef CONFIG_AP
  3934. if (!wpa_s->ap_iface)
  3935. break;
  3936. hostapd_event_get_survey(wpa_s->ap_iface,
  3937. &data->survey_results);
  3938. #endif /* CONFIG_AP */
  3939. break;
  3940. case EVENT_ACS_CHANNEL_SELECTED:
  3941. #ifdef CONFIG_AP
  3942. #ifdef CONFIG_ACS
  3943. if (!wpa_s->ap_iface)
  3944. break;
  3945. hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
  3946. &data->acs_selected_channels);
  3947. #endif /* CONFIG_ACS */
  3948. #endif /* CONFIG_AP */
  3949. break;
  3950. case EVENT_P2P_LO_STOP:
  3951. #ifdef CONFIG_P2P
  3952. wpa_s->p2p_lo_started = 0;
  3953. wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
  3954. P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
  3955. data->p2p_lo_stop.reason_code);
  3956. #endif /* CONFIG_P2P */
  3957. break;
  3958. case EVENT_BEACON_LOSS:
  3959. if (!wpa_s->current_bss || !wpa_s->current_ssid)
  3960. break;
  3961. wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
  3962. bgscan_notify_beacon_loss(wpa_s);
  3963. break;
  3964. default:
  3965. wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
  3966. break;
  3967. }
  3968. }
  3969. void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
  3970. union wpa_event_data *data)
  3971. {
  3972. struct wpa_supplicant *wpa_s;
  3973. if (event != EVENT_INTERFACE_STATUS)
  3974. return;
  3975. wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
  3976. if (wpa_s && wpa_s->driver->get_ifindex) {
  3977. unsigned int ifindex;
  3978. ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
  3979. if (ifindex != data->interface_status.ifindex) {
  3980. wpa_dbg(wpa_s, MSG_DEBUG,
  3981. "interface status ifindex %d mismatch (%d)",
  3982. ifindex, data->interface_status.ifindex);
  3983. return;
  3984. }
  3985. }
  3986. #ifdef CONFIG_MATCH_IFACE
  3987. else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
  3988. struct wpa_interface *wpa_i;
  3989. wpa_i = wpa_supplicant_match_iface(
  3990. ctx, data->interface_status.ifname);
  3991. if (!wpa_i)
  3992. return;
  3993. wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
  3994. os_free(wpa_i);
  3995. if (wpa_s)
  3996. wpa_s->matched = 1;
  3997. }
  3998. #endif /* CONFIG_MATCH_IFACE */
  3999. if (wpa_s)
  4000. wpa_supplicant_event(wpa_s, event, data);
  4001. }