wps_supplicant.c 58 KB

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  1. /*
  2. * wpa_supplicant / WPS integration
  3. * Copyright (c) 2008-2012, 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 "eloop.h"
  11. #include "uuid.h"
  12. #include "crypto/random.h"
  13. #include "crypto/dh_group5.h"
  14. #include "common/ieee802_11_defs.h"
  15. #include "common/ieee802_11_common.h"
  16. #include "common/wpa_common.h"
  17. #include "common/wpa_ctrl.h"
  18. #include "eap_common/eap_wsc_common.h"
  19. #include "eap_peer/eap.h"
  20. #include "eapol_supp/eapol_supp_sm.h"
  21. #include "rsn_supp/wpa.h"
  22. #include "wps/wps_attr_parse.h"
  23. #include "config.h"
  24. #include "wpa_supplicant_i.h"
  25. #include "driver_i.h"
  26. #include "notify.h"
  27. #include "blacklist.h"
  28. #include "bss.h"
  29. #include "scan.h"
  30. #include "ap.h"
  31. #include "p2p/p2p.h"
  32. #include "p2p_supplicant.h"
  33. #include "wps_supplicant.h"
  34. #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
  35. #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
  36. #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
  37. static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
  38. static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
  39. static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
  40. {
  41. os_free(wpa_s->wps_ap);
  42. wpa_s->wps_ap = NULL;
  43. wpa_s->num_wps_ap = 0;
  44. wpa_s->wps_ap_iter = 0;
  45. }
  46. int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
  47. {
  48. if (!wpa_s->wps_success &&
  49. wpa_s->current_ssid &&
  50. eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
  51. const u8 *bssid = wpa_s->bssid;
  52. if (is_zero_ether_addr(bssid))
  53. bssid = wpa_s->pending_bssid;
  54. wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
  55. " did not succeed - continue trying to find "
  56. "suitable AP", MAC2STR(bssid));
  57. wpa_blacklist_add(wpa_s, bssid);
  58. wpa_supplicant_deauthenticate(wpa_s,
  59. WLAN_REASON_DEAUTH_LEAVING);
  60. wpa_s->reassociate = 1;
  61. wpa_supplicant_req_scan(wpa_s,
  62. wpa_s->blacklist_cleared ? 5 : 0, 0);
  63. wpa_s->blacklist_cleared = 0;
  64. return 1;
  65. }
  66. wpas_wps_clear_ap_info(wpa_s);
  67. eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  68. if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
  69. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
  70. if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
  71. !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  72. int disabled = wpa_s->current_ssid->disabled;
  73. unsigned int freq = wpa_s->assoc_freq;
  74. wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
  75. "try to associate with the received credential "
  76. "(freq=%u)", freq);
  77. wpa_supplicant_deauthenticate(wpa_s,
  78. WLAN_REASON_DEAUTH_LEAVING);
  79. if (disabled) {
  80. wpa_printf(MSG_DEBUG, "WPS: Current network is "
  81. "disabled - wait for user to enable");
  82. return 1;
  83. }
  84. wpa_s->after_wps = 5;
  85. wpa_s->wps_freq = freq;
  86. wpa_s->normal_scans = 0;
  87. wpa_s->reassociate = 1;
  88. wpa_supplicant_req_scan(wpa_s, 0, 0);
  89. return 1;
  90. }
  91. if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
  92. wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
  93. "for external credential processing");
  94. wpas_clear_wps(wpa_s);
  95. wpa_supplicant_deauthenticate(wpa_s,
  96. WLAN_REASON_DEAUTH_LEAVING);
  97. return 1;
  98. }
  99. return 0;
  100. }
  101. static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
  102. struct wpa_ssid *ssid,
  103. const struct wps_credential *cred)
  104. {
  105. struct wpa_driver_capa capa;
  106. struct wpa_bss *bss;
  107. const u8 *ie;
  108. struct wpa_ie_data adv;
  109. int wpa2 = 0, ccmp = 0;
  110. /*
  111. * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
  112. * case they are configured for mixed mode operation (WPA+WPA2 and
  113. * TKIP+CCMP). Try to use scan results to figure out whether the AP
  114. * actually supports stronger security and select that if the client
  115. * has support for it, too.
  116. */
  117. if (wpa_drv_get_capa(wpa_s, &capa))
  118. return; /* Unknown what driver supports */
  119. if (ssid->ssid == NULL)
  120. return;
  121. bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
  122. if (bss == NULL) {
  123. wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
  124. "table - use credential as-is");
  125. return;
  126. }
  127. wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
  128. ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
  129. if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
  130. wpa2 = 1;
  131. if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
  132. ccmp = 1;
  133. } else {
  134. ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
  135. if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
  136. adv.pairwise_cipher & WPA_CIPHER_CCMP)
  137. ccmp = 1;
  138. }
  139. if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
  140. (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
  141. /*
  142. * TODO: This could be the initial AP configuration and the
  143. * Beacon contents could change shortly. Should request a new
  144. * scan and delay addition of the network until the updated
  145. * scan results are available.
  146. */
  147. wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
  148. "support - use credential as-is");
  149. return;
  150. }
  151. if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
  152. (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
  153. (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
  154. wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
  155. "based on scan results");
  156. if (wpa_s->conf->ap_scan == 1)
  157. ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
  158. else
  159. ssid->pairwise_cipher = WPA_CIPHER_CCMP;
  160. }
  161. if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
  162. (ssid->proto & WPA_PROTO_WPA) &&
  163. (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
  164. wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
  165. "based on scan results");
  166. if (wpa_s->conf->ap_scan == 1)
  167. ssid->proto |= WPA_PROTO_RSN;
  168. else
  169. ssid->proto = WPA_PROTO_RSN;
  170. }
  171. }
  172. static int wpa_supplicant_wps_cred(void *ctx,
  173. const struct wps_credential *cred)
  174. {
  175. struct wpa_supplicant *wpa_s = ctx;
  176. struct wpa_ssid *ssid = wpa_s->current_ssid;
  177. u8 key_idx = 0;
  178. u16 auth_type;
  179. #ifdef CONFIG_WPS_REG_DISABLE_OPEN
  180. int registrar = 0;
  181. #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
  182. if ((wpa_s->conf->wps_cred_processing == 1 ||
  183. wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
  184. size_t blen = cred->cred_attr_len * 2 + 1;
  185. char *buf = os_malloc(blen);
  186. if (buf) {
  187. wpa_snprintf_hex(buf, blen,
  188. cred->cred_attr, cred->cred_attr_len);
  189. wpa_msg(wpa_s, MSG_INFO, "%s%s",
  190. WPS_EVENT_CRED_RECEIVED, buf);
  191. os_free(buf);
  192. }
  193. wpas_notify_wps_credential(wpa_s, cred);
  194. } else
  195. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
  196. wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
  197. cred->cred_attr, cred->cred_attr_len);
  198. if (wpa_s->conf->wps_cred_processing == 1)
  199. return 0;
  200. wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
  201. wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
  202. cred->auth_type);
  203. wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
  204. wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
  205. wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
  206. cred->key, cred->key_len);
  207. wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
  208. MAC2STR(cred->mac_addr));
  209. auth_type = cred->auth_type;
  210. if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
  211. wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
  212. "auth_type into WPA2PSK");
  213. auth_type = WPS_AUTH_WPA2PSK;
  214. }
  215. if (auth_type != WPS_AUTH_OPEN &&
  216. auth_type != WPS_AUTH_SHARED &&
  217. auth_type != WPS_AUTH_WPAPSK &&
  218. auth_type != WPS_AUTH_WPA2PSK) {
  219. wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
  220. "unsupported authentication type 0x%x",
  221. auth_type);
  222. return 0;
  223. }
  224. if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
  225. if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
  226. wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
  227. "invalid Network Key length %lu",
  228. (unsigned long) cred->key_len);
  229. return -1;
  230. }
  231. }
  232. if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
  233. wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
  234. "on the received credential");
  235. #ifdef CONFIG_WPS_REG_DISABLE_OPEN
  236. if (ssid->eap.identity &&
  237. ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
  238. os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
  239. WSC_ID_REGISTRAR_LEN) == 0)
  240. registrar = 1;
  241. #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
  242. os_free(ssid->eap.identity);
  243. ssid->eap.identity = NULL;
  244. ssid->eap.identity_len = 0;
  245. os_free(ssid->eap.phase1);
  246. ssid->eap.phase1 = NULL;
  247. os_free(ssid->eap.eap_methods);
  248. ssid->eap.eap_methods = NULL;
  249. if (!ssid->p2p_group) {
  250. ssid->temporary = 0;
  251. ssid->bssid_set = 0;
  252. }
  253. ssid->disabled_until.sec = 0;
  254. ssid->disabled_until.usec = 0;
  255. ssid->auth_failures = 0;
  256. } else {
  257. wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
  258. "received credential");
  259. ssid = wpa_config_add_network(wpa_s->conf);
  260. if (ssid == NULL)
  261. return -1;
  262. wpas_notify_network_added(wpa_s, ssid);
  263. }
  264. wpa_config_set_network_defaults(ssid);
  265. os_free(ssid->ssid);
  266. ssid->ssid = os_malloc(cred->ssid_len);
  267. if (ssid->ssid) {
  268. os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
  269. ssid->ssid_len = cred->ssid_len;
  270. }
  271. switch (cred->encr_type) {
  272. case WPS_ENCR_NONE:
  273. break;
  274. case WPS_ENCR_WEP:
  275. if (cred->key_len <= 0)
  276. break;
  277. if (cred->key_len != 5 && cred->key_len != 13 &&
  278. cred->key_len != 10 && cred->key_len != 26) {
  279. wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
  280. "%lu", (unsigned long) cred->key_len);
  281. return -1;
  282. }
  283. if (cred->key_idx > NUM_WEP_KEYS) {
  284. wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
  285. cred->key_idx);
  286. return -1;
  287. }
  288. if (cred->key_idx)
  289. key_idx = cred->key_idx - 1;
  290. if (cred->key_len == 10 || cred->key_len == 26) {
  291. if (hexstr2bin((char *) cred->key,
  292. ssid->wep_key[key_idx],
  293. cred->key_len / 2) < 0) {
  294. wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
  295. "%d", key_idx);
  296. return -1;
  297. }
  298. ssid->wep_key_len[key_idx] = cred->key_len / 2;
  299. } else {
  300. os_memcpy(ssid->wep_key[key_idx], cred->key,
  301. cred->key_len);
  302. ssid->wep_key_len[key_idx] = cred->key_len;
  303. }
  304. ssid->wep_tx_keyidx = key_idx;
  305. break;
  306. case WPS_ENCR_TKIP:
  307. ssid->pairwise_cipher = WPA_CIPHER_TKIP;
  308. break;
  309. case WPS_ENCR_AES:
  310. ssid->pairwise_cipher = WPA_CIPHER_CCMP;
  311. break;
  312. }
  313. switch (auth_type) {
  314. case WPS_AUTH_OPEN:
  315. ssid->auth_alg = WPA_AUTH_ALG_OPEN;
  316. ssid->key_mgmt = WPA_KEY_MGMT_NONE;
  317. ssid->proto = 0;
  318. #ifdef CONFIG_WPS_REG_DISABLE_OPEN
  319. if (registrar) {
  320. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
  321. "id=%d - Credentials for an open "
  322. "network disabled by default - use "
  323. "'select_network %d' to enable",
  324. ssid->id, ssid->id);
  325. ssid->disabled = 1;
  326. }
  327. #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
  328. break;
  329. case WPS_AUTH_SHARED:
  330. ssid->auth_alg = WPA_AUTH_ALG_SHARED;
  331. ssid->key_mgmt = WPA_KEY_MGMT_NONE;
  332. ssid->proto = 0;
  333. break;
  334. case WPS_AUTH_WPAPSK:
  335. ssid->auth_alg = WPA_AUTH_ALG_OPEN;
  336. ssid->key_mgmt = WPA_KEY_MGMT_PSK;
  337. ssid->proto = WPA_PROTO_WPA;
  338. break;
  339. case WPS_AUTH_WPA2PSK:
  340. ssid->auth_alg = WPA_AUTH_ALG_OPEN;
  341. ssid->key_mgmt = WPA_KEY_MGMT_PSK;
  342. ssid->proto = WPA_PROTO_RSN;
  343. break;
  344. }
  345. if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
  346. if (cred->key_len == 2 * PMK_LEN) {
  347. if (hexstr2bin((const char *) cred->key, ssid->psk,
  348. PMK_LEN)) {
  349. wpa_printf(MSG_ERROR, "WPS: Invalid Network "
  350. "Key");
  351. return -1;
  352. }
  353. ssid->psk_set = 1;
  354. ssid->export_keys = 1;
  355. } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
  356. os_free(ssid->passphrase);
  357. ssid->passphrase = os_malloc(cred->key_len + 1);
  358. if (ssid->passphrase == NULL)
  359. return -1;
  360. os_memcpy(ssid->passphrase, cred->key, cred->key_len);
  361. ssid->passphrase[cred->key_len] = '\0';
  362. wpa_config_update_psk(ssid);
  363. ssid->export_keys = 1;
  364. } else {
  365. wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
  366. "length %lu",
  367. (unsigned long) cred->key_len);
  368. return -1;
  369. }
  370. }
  371. wpas_wps_security_workaround(wpa_s, ssid, cred);
  372. if (cred->ap_channel)
  373. wpa_s->wps_ap_channel = cred->ap_channel;
  374. #ifndef CONFIG_NO_CONFIG_WRITE
  375. if (wpa_s->conf->update_config &&
  376. wpa_config_write(wpa_s->confname, wpa_s->conf)) {
  377. wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
  378. return -1;
  379. }
  380. #endif /* CONFIG_NO_CONFIG_WRITE */
  381. /*
  382. * Optimize the post-WPS scan based on the channel used during
  383. * the provisioning in case EAP-Failure is not received.
  384. */
  385. wpa_s->after_wps = 5;
  386. wpa_s->wps_freq = wpa_s->assoc_freq;
  387. return 0;
  388. }
  389. #ifdef CONFIG_P2P
  390. static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
  391. {
  392. struct wpa_supplicant *wpa_s = eloop_ctx;
  393. wpas_p2p_notif_pbc_overlap(wpa_s);
  394. }
  395. #endif /* CONFIG_P2P */
  396. static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
  397. struct wps_event_m2d *m2d)
  398. {
  399. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
  400. "dev_password_id=%d config_error=%d",
  401. m2d->dev_password_id, m2d->config_error);
  402. wpas_notify_wps_event_m2d(wpa_s, m2d);
  403. #ifdef CONFIG_P2P
  404. if (wpa_s->parent && wpa_s->parent != wpa_s) {
  405. wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
  406. "dev_password_id=%d config_error=%d",
  407. m2d->dev_password_id, m2d->config_error);
  408. }
  409. if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
  410. /*
  411. * Notify P2P from eloop timeout to avoid issues with the
  412. * interface getting removed while processing a message.
  413. */
  414. eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
  415. NULL);
  416. }
  417. #endif /* CONFIG_P2P */
  418. }
  419. static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
  420. "No Error", /* WPS_EI_NO_ERROR */
  421. "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
  422. "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
  423. };
  424. static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
  425. struct wps_event_fail *fail)
  426. {
  427. if (fail->error_indication > 0 &&
  428. fail->error_indication < NUM_WPS_EI_VALUES) {
  429. wpa_msg(wpa_s, MSG_INFO,
  430. WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
  431. fail->msg, fail->config_error, fail->error_indication,
  432. wps_event_fail_reason[fail->error_indication]);
  433. if (wpa_s->parent && wpa_s->parent != wpa_s)
  434. wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
  435. "msg=%d config_error=%d reason=%d (%s)",
  436. fail->msg, fail->config_error,
  437. fail->error_indication,
  438. wps_event_fail_reason[fail->error_indication]);
  439. } else {
  440. wpa_msg(wpa_s, MSG_INFO,
  441. WPS_EVENT_FAIL "msg=%d config_error=%d",
  442. fail->msg, fail->config_error);
  443. if (wpa_s->parent && wpa_s->parent != wpa_s)
  444. wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
  445. "msg=%d config_error=%d",
  446. fail->msg, fail->config_error);
  447. }
  448. wpas_clear_wps(wpa_s);
  449. wpas_notify_wps_event_fail(wpa_s, fail);
  450. #ifdef CONFIG_P2P
  451. wpas_p2p_wps_failed(wpa_s, fail);
  452. #endif /* CONFIG_P2P */
  453. }
  454. static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
  455. static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
  456. {
  457. struct wpa_ssid *ssid;
  458. int changed = 0;
  459. eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
  460. for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
  461. if (ssid->disabled_for_connect && ssid->disabled) {
  462. ssid->disabled_for_connect = 0;
  463. ssid->disabled = 0;
  464. wpas_notify_network_enabled_changed(wpa_s, ssid);
  465. changed++;
  466. }
  467. }
  468. if (changed) {
  469. #ifndef CONFIG_NO_CONFIG_WRITE
  470. if (wpa_s->conf->update_config &&
  471. wpa_config_write(wpa_s->confname, wpa_s->conf)) {
  472. wpa_printf(MSG_DEBUG, "WPS: Failed to update "
  473. "configuration");
  474. }
  475. #endif /* CONFIG_NO_CONFIG_WRITE */
  476. }
  477. }
  478. static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
  479. {
  480. struct wpa_supplicant *wpa_s = eloop_ctx;
  481. /* Enable the networks disabled during wpas_wps_reassoc */
  482. wpas_wps_reenable_networks(wpa_s);
  483. }
  484. static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
  485. {
  486. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
  487. wpa_s->wps_success = 1;
  488. wpas_notify_wps_event_success(wpa_s);
  489. /*
  490. * Enable the networks disabled during wpas_wps_reassoc after 10
  491. * seconds. The 10 seconds timer is to allow the data connection to be
  492. * formed before allowing other networks to be selected.
  493. */
  494. eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
  495. NULL);
  496. #ifdef CONFIG_P2P
  497. wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
  498. #endif /* CONFIG_P2P */
  499. }
  500. static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
  501. struct wps_event_er_ap *ap)
  502. {
  503. char uuid_str[100];
  504. char dev_type[WPS_DEV_TYPE_BUFSIZE];
  505. uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
  506. if (ap->pri_dev_type)
  507. wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
  508. sizeof(dev_type));
  509. else
  510. dev_type[0] = '\0';
  511. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
  512. " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
  513. uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
  514. ap->friendly_name ? ap->friendly_name : "",
  515. ap->manufacturer ? ap->manufacturer : "",
  516. ap->model_description ? ap->model_description : "",
  517. ap->model_name ? ap->model_name : "",
  518. ap->manufacturer_url ? ap->manufacturer_url : "",
  519. ap->model_url ? ap->model_url : "");
  520. }
  521. static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
  522. struct wps_event_er_ap *ap)
  523. {
  524. char uuid_str[100];
  525. uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
  526. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
  527. }
  528. static void wpa_supplicant_wps_event_er_enrollee_add(
  529. struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
  530. {
  531. char uuid_str[100];
  532. char dev_type[WPS_DEV_TYPE_BUFSIZE];
  533. uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
  534. if (enrollee->pri_dev_type)
  535. wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
  536. sizeof(dev_type));
  537. else
  538. dev_type[0] = '\0';
  539. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
  540. " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
  541. "|%s|%s|%s|%s|%s|",
  542. uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
  543. enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
  544. enrollee->dev_name ? enrollee->dev_name : "",
  545. enrollee->manufacturer ? enrollee->manufacturer : "",
  546. enrollee->model_name ? enrollee->model_name : "",
  547. enrollee->model_number ? enrollee->model_number : "",
  548. enrollee->serial_number ? enrollee->serial_number : "");
  549. }
  550. static void wpa_supplicant_wps_event_er_enrollee_remove(
  551. struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
  552. {
  553. char uuid_str[100];
  554. uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
  555. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
  556. uuid_str, MAC2STR(enrollee->mac_addr));
  557. }
  558. static void wpa_supplicant_wps_event_er_ap_settings(
  559. struct wpa_supplicant *wpa_s,
  560. struct wps_event_er_ap_settings *ap_settings)
  561. {
  562. char uuid_str[100];
  563. char key_str[65];
  564. const struct wps_credential *cred = ap_settings->cred;
  565. key_str[0] = '\0';
  566. if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
  567. if (cred->key_len >= 8 && cred->key_len <= 64) {
  568. os_memcpy(key_str, cred->key, cred->key_len);
  569. key_str[cred->key_len] = '\0';
  570. }
  571. }
  572. uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
  573. /* Use wpa_msg_ctrl to avoid showing the key in debug log */
  574. wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
  575. "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
  576. "key=%s",
  577. uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
  578. cred->auth_type, cred->encr_type, key_str);
  579. }
  580. static void wpa_supplicant_wps_event_er_set_sel_reg(
  581. struct wpa_supplicant *wpa_s,
  582. struct wps_event_er_set_selected_registrar *ev)
  583. {
  584. char uuid_str[100];
  585. uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
  586. switch (ev->state) {
  587. case WPS_ER_SET_SEL_REG_START:
  588. wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
  589. "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
  590. "sel_reg_config_methods=0x%x",
  591. uuid_str, ev->sel_reg, ev->dev_passwd_id,
  592. ev->sel_reg_config_methods);
  593. break;
  594. case WPS_ER_SET_SEL_REG_DONE:
  595. wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
  596. "uuid=%s state=DONE", uuid_str);
  597. break;
  598. case WPS_ER_SET_SEL_REG_FAILED:
  599. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
  600. "uuid=%s state=FAILED", uuid_str);
  601. break;
  602. }
  603. }
  604. static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
  605. union wps_event_data *data)
  606. {
  607. struct wpa_supplicant *wpa_s = ctx;
  608. switch (event) {
  609. case WPS_EV_M2D:
  610. wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
  611. break;
  612. case WPS_EV_FAIL:
  613. wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
  614. break;
  615. case WPS_EV_SUCCESS:
  616. wpa_supplicant_wps_event_success(wpa_s);
  617. break;
  618. case WPS_EV_PWD_AUTH_FAIL:
  619. #ifdef CONFIG_AP
  620. if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
  621. wpa_supplicant_ap_pwd_auth_fail(wpa_s);
  622. #endif /* CONFIG_AP */
  623. break;
  624. case WPS_EV_PBC_OVERLAP:
  625. break;
  626. case WPS_EV_PBC_TIMEOUT:
  627. break;
  628. case WPS_EV_ER_AP_ADD:
  629. wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
  630. break;
  631. case WPS_EV_ER_AP_REMOVE:
  632. wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
  633. break;
  634. case WPS_EV_ER_ENROLLEE_ADD:
  635. wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
  636. &data->enrollee);
  637. break;
  638. case WPS_EV_ER_ENROLLEE_REMOVE:
  639. wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
  640. &data->enrollee);
  641. break;
  642. case WPS_EV_ER_AP_SETTINGS:
  643. wpa_supplicant_wps_event_er_ap_settings(wpa_s,
  644. &data->ap_settings);
  645. break;
  646. case WPS_EV_ER_SET_SELECTED_REGISTRAR:
  647. wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
  648. &data->set_sel_reg);
  649. break;
  650. case WPS_EV_AP_PIN_SUCCESS:
  651. break;
  652. }
  653. }
  654. enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
  655. {
  656. if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
  657. eap_is_wps_pin_enrollee(&ssid->eap))
  658. return WPS_REQ_ENROLLEE;
  659. else
  660. return WPS_REQ_REGISTRAR;
  661. }
  662. static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
  663. {
  664. int id;
  665. struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
  666. prev_current = wpa_s->current_ssid;
  667. /* Enable the networks disabled during wpas_wps_reassoc */
  668. wpas_wps_reenable_networks(wpa_s);
  669. eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  670. /* Remove any existing WPS network from configuration */
  671. ssid = wpa_s->conf->ssid;
  672. while (ssid) {
  673. if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
  674. if (ssid == wpa_s->current_ssid) {
  675. wpa_s->current_ssid = NULL;
  676. if (ssid != NULL)
  677. wpas_notify_network_changed(wpa_s);
  678. }
  679. id = ssid->id;
  680. remove_ssid = ssid;
  681. } else
  682. id = -1;
  683. ssid = ssid->next;
  684. if (id >= 0) {
  685. if (prev_current == remove_ssid) {
  686. wpa_sm_set_config(wpa_s->wpa, NULL);
  687. eapol_sm_notify_config(wpa_s->eapol, NULL,
  688. NULL);
  689. }
  690. wpas_notify_network_removed(wpa_s, remove_ssid);
  691. wpa_config_remove_network(wpa_s->conf, id);
  692. }
  693. }
  694. wpas_wps_clear_ap_info(wpa_s);
  695. }
  696. static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
  697. {
  698. struct wpa_supplicant *wpa_s = eloop_ctx;
  699. wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
  700. "out");
  701. wpas_clear_wps(wpa_s);
  702. }
  703. static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
  704. int registrar, const u8 *bssid)
  705. {
  706. struct wpa_ssid *ssid;
  707. ssid = wpa_config_add_network(wpa_s->conf);
  708. if (ssid == NULL)
  709. return NULL;
  710. wpas_notify_network_added(wpa_s, ssid);
  711. wpa_config_set_network_defaults(ssid);
  712. ssid->temporary = 1;
  713. if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
  714. wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
  715. wpa_config_set(ssid, "identity", registrar ?
  716. "\"" WSC_ID_REGISTRAR "\"" :
  717. "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
  718. wpas_notify_network_removed(wpa_s, ssid);
  719. wpa_config_remove_network(wpa_s->conf, ssid->id);
  720. return NULL;
  721. }
  722. if (bssid) {
  723. #ifndef CONFIG_P2P
  724. struct wpa_bss *bss;
  725. int count = 0;
  726. #endif /* CONFIG_P2P */
  727. os_memcpy(ssid->bssid, bssid, ETH_ALEN);
  728. ssid->bssid_set = 1;
  729. /*
  730. * Note: With P2P, the SSID may change at the time the WPS
  731. * provisioning is started, so better not filter the AP based
  732. * on the current SSID in the scan results.
  733. */
  734. #ifndef CONFIG_P2P
  735. dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
  736. if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
  737. continue;
  738. os_free(ssid->ssid);
  739. ssid->ssid = os_malloc(bss->ssid_len);
  740. if (ssid->ssid == NULL)
  741. break;
  742. os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
  743. ssid->ssid_len = bss->ssid_len;
  744. wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
  745. "scan results",
  746. ssid->ssid, ssid->ssid_len);
  747. count++;
  748. }
  749. if (count > 1) {
  750. wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
  751. "for the AP; use wildcard");
  752. os_free(ssid->ssid);
  753. ssid->ssid = NULL;
  754. ssid->ssid_len = 0;
  755. }
  756. #endif /* CONFIG_P2P */
  757. }
  758. return ssid;
  759. }
  760. static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
  761. struct wpa_ssid *selected, const u8 *bssid)
  762. {
  763. struct wpa_ssid *ssid;
  764. struct wpa_bss *bss;
  765. wpa_s->after_wps = 0;
  766. wpa_s->known_wps_freq = 0;
  767. if (bssid) {
  768. bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
  769. if (bss && bss->freq > 0) {
  770. wpa_s->known_wps_freq = 1;
  771. wpa_s->wps_freq = bss->freq;
  772. }
  773. }
  774. if (wpa_s->current_ssid)
  775. wpa_supplicant_deauthenticate(
  776. wpa_s, WLAN_REASON_DEAUTH_LEAVING);
  777. /* Mark all other networks disabled and trigger reassociation */
  778. ssid = wpa_s->conf->ssid;
  779. while (ssid) {
  780. int was_disabled = ssid->disabled;
  781. ssid->disabled_for_connect = 0;
  782. /*
  783. * In case the network object corresponds to a persistent group
  784. * then do not send out network disabled signal. In addition,
  785. * do not change disabled status of persistent network objects
  786. * from 2 to 1 should we connect to another network.
  787. */
  788. if (was_disabled != 2) {
  789. ssid->disabled = ssid != selected;
  790. if (was_disabled != ssid->disabled) {
  791. if (ssid->disabled)
  792. ssid->disabled_for_connect = 1;
  793. wpas_notify_network_enabled_changed(wpa_s,
  794. ssid);
  795. }
  796. }
  797. ssid = ssid->next;
  798. }
  799. wpa_s->disconnected = 0;
  800. wpa_s->reassociate = 1;
  801. wpa_s->scan_runs = 0;
  802. wpa_s->normal_scans = 0;
  803. wpa_s->wps_success = 0;
  804. wpa_s->blacklist_cleared = 0;
  805. wpa_supplicant_req_scan(wpa_s, 0, 0);
  806. }
  807. int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
  808. int p2p_group)
  809. {
  810. struct wpa_ssid *ssid;
  811. wpas_clear_wps(wpa_s);
  812. ssid = wpas_wps_add_network(wpa_s, 0, bssid);
  813. if (ssid == NULL)
  814. return -1;
  815. ssid->temporary = 1;
  816. ssid->p2p_group = p2p_group;
  817. #ifdef CONFIG_P2P
  818. if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
  819. ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
  820. if (ssid->ssid) {
  821. ssid->ssid_len = wpa_s->go_params->ssid_len;
  822. os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
  823. ssid->ssid_len);
  824. wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
  825. "SSID", ssid->ssid, ssid->ssid_len);
  826. }
  827. }
  828. #endif /* CONFIG_P2P */
  829. if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
  830. return -1;
  831. if (wpa_s->wps_fragment_size)
  832. ssid->eap.fragment_size = wpa_s->wps_fragment_size;
  833. eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
  834. wpa_s, NULL);
  835. wpas_wps_reassoc(wpa_s, ssid, bssid);
  836. return 0;
  837. }
  838. int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
  839. const char *pin, int p2p_group, u16 dev_pw_id)
  840. {
  841. struct wpa_ssid *ssid;
  842. char val[128];
  843. unsigned int rpin = 0;
  844. wpas_clear_wps(wpa_s);
  845. ssid = wpas_wps_add_network(wpa_s, 0, bssid);
  846. if (ssid == NULL)
  847. return -1;
  848. ssid->temporary = 1;
  849. ssid->p2p_group = p2p_group;
  850. #ifdef CONFIG_P2P
  851. if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
  852. ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
  853. if (ssid->ssid) {
  854. ssid->ssid_len = wpa_s->go_params->ssid_len;
  855. os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
  856. ssid->ssid_len);
  857. wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
  858. "SSID", ssid->ssid, ssid->ssid_len);
  859. }
  860. }
  861. #endif /* CONFIG_P2P */
  862. if (pin)
  863. os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
  864. pin, dev_pw_id);
  865. else {
  866. rpin = wps_generate_pin();
  867. os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
  868. rpin, dev_pw_id);
  869. }
  870. if (wpa_config_set(ssid, "phase1", val, 0) < 0)
  871. return -1;
  872. if (wpa_s->wps_fragment_size)
  873. ssid->eap.fragment_size = wpa_s->wps_fragment_size;
  874. eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
  875. wpa_s, NULL);
  876. wpa_s->wps_ap_iter = 1;
  877. wpas_wps_reassoc(wpa_s, ssid, bssid);
  878. return rpin;
  879. }
  880. /* Cancel the wps pbc/pin requests */
  881. int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
  882. {
  883. #ifdef CONFIG_AP
  884. if (wpa_s->ap_iface) {
  885. wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
  886. return wpa_supplicant_ap_wps_cancel(wpa_s);
  887. }
  888. #endif /* CONFIG_AP */
  889. if (wpa_s->wpa_state == WPA_SCANNING ||
  890. wpa_s->wpa_state == WPA_DISCONNECTED) {
  891. wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
  892. wpa_supplicant_cancel_scan(wpa_s);
  893. wpas_clear_wps(wpa_s);
  894. } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
  895. wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
  896. "deauthenticate");
  897. wpa_supplicant_deauthenticate(wpa_s,
  898. WLAN_REASON_DEAUTH_LEAVING);
  899. wpas_clear_wps(wpa_s);
  900. } else {
  901. wpas_wps_reenable_networks(wpa_s);
  902. wpas_wps_clear_ap_info(wpa_s);
  903. }
  904. return 0;
  905. }
  906. int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
  907. const char *pin, struct wps_new_ap_settings *settings)
  908. {
  909. struct wpa_ssid *ssid;
  910. char val[200];
  911. char *pos, *end;
  912. int res;
  913. if (!pin)
  914. return -1;
  915. wpas_clear_wps(wpa_s);
  916. ssid = wpas_wps_add_network(wpa_s, 1, bssid);
  917. if (ssid == NULL)
  918. return -1;
  919. ssid->temporary = 1;
  920. pos = val;
  921. end = pos + sizeof(val);
  922. res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
  923. if (res < 0 || res >= end - pos)
  924. return -1;
  925. pos += res;
  926. if (settings) {
  927. res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
  928. "new_encr=%s new_key=%s",
  929. settings->ssid_hex, settings->auth,
  930. settings->encr, settings->key_hex);
  931. if (res < 0 || res >= end - pos)
  932. return -1;
  933. pos += res;
  934. }
  935. res = os_snprintf(pos, end - pos, "\"");
  936. if (res < 0 || res >= end - pos)
  937. return -1;
  938. if (wpa_config_set(ssid, "phase1", val, 0) < 0)
  939. return -1;
  940. if (wpa_s->wps_fragment_size)
  941. ssid->eap.fragment_size = wpa_s->wps_fragment_size;
  942. eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
  943. wpa_s, NULL);
  944. wpas_wps_reassoc(wpa_s, ssid, bssid);
  945. return 0;
  946. }
  947. static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  948. size_t psk_len)
  949. {
  950. wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
  951. "STA " MACSTR, MAC2STR(mac_addr));
  952. wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  953. /* TODO */
  954. return 0;
  955. }
  956. static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
  957. const struct wps_device_data *dev)
  958. {
  959. char uuid[40], txt[400];
  960. int len;
  961. char devtype[WPS_DEV_TYPE_BUFSIZE];
  962. if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
  963. return;
  964. wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
  965. len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
  966. " [%s|%s|%s|%s|%s|%s]",
  967. uuid, MAC2STR(dev->mac_addr), dev->device_name,
  968. dev->manufacturer, dev->model_name,
  969. dev->model_number, dev->serial_number,
  970. wps_dev_type_bin2str(dev->pri_dev_type, devtype,
  971. sizeof(devtype)));
  972. if (len > 0 && len < (int) sizeof(txt))
  973. wpa_printf(MSG_INFO, "%s", txt);
  974. }
  975. static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
  976. u16 sel_reg_config_methods)
  977. {
  978. #ifdef CONFIG_WPS_ER
  979. struct wpa_supplicant *wpa_s = ctx;
  980. if (wpa_s->wps_er == NULL)
  981. return;
  982. wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
  983. "dev_password_id=%u sel_reg_config_methods=0x%x",
  984. sel_reg, dev_passwd_id, sel_reg_config_methods);
  985. wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
  986. sel_reg_config_methods);
  987. #endif /* CONFIG_WPS_ER */
  988. }
  989. static u16 wps_fix_config_methods(u16 config_methods)
  990. {
  991. #ifdef CONFIG_WPS2
  992. if ((config_methods &
  993. (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
  994. WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
  995. wpa_printf(MSG_INFO, "WPS: Converting display to "
  996. "virtual_display for WPS 2.0 compliance");
  997. config_methods |= WPS_CONFIG_VIRT_DISPLAY;
  998. }
  999. if ((config_methods &
  1000. (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
  1001. WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
  1002. wpa_printf(MSG_INFO, "WPS: Converting push_button to "
  1003. "virtual_push_button for WPS 2.0 compliance");
  1004. config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
  1005. }
  1006. #endif /* CONFIG_WPS2 */
  1007. return config_methods;
  1008. }
  1009. static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
  1010. struct wps_context *wps)
  1011. {
  1012. wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
  1013. if (is_nil_uuid(wpa_s->conf->uuid)) {
  1014. struct wpa_supplicant *first;
  1015. first = wpa_s->global->ifaces;
  1016. while (first && first->next)
  1017. first = first->next;
  1018. if (first && first != wpa_s) {
  1019. if (wps != wpa_s->global->ifaces->wps)
  1020. os_memcpy(wps->uuid,
  1021. wpa_s->global->ifaces->wps->uuid,
  1022. WPS_UUID_LEN);
  1023. wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
  1024. "interface", wps->uuid, WPS_UUID_LEN);
  1025. } else {
  1026. uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
  1027. wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
  1028. "address", wps->uuid, WPS_UUID_LEN);
  1029. }
  1030. } else {
  1031. os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
  1032. wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
  1033. wps->uuid, WPS_UUID_LEN);
  1034. }
  1035. }
  1036. static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
  1037. struct wps_context *wps)
  1038. {
  1039. wpabuf_free(wps->dev.vendor_ext_m1);
  1040. wps->dev.vendor_ext_m1 = NULL;
  1041. if (wpa_s->conf->wps_vendor_ext_m1) {
  1042. wps->dev.vendor_ext_m1 =
  1043. wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
  1044. if (!wps->dev.vendor_ext_m1) {
  1045. wpa_printf(MSG_ERROR, "WPS: Cannot "
  1046. "allocate memory for vendor_ext_m1");
  1047. }
  1048. }
  1049. }
  1050. int wpas_wps_init(struct wpa_supplicant *wpa_s)
  1051. {
  1052. struct wps_context *wps;
  1053. struct wps_registrar_config rcfg;
  1054. struct hostapd_hw_modes *modes;
  1055. u16 m;
  1056. wps = os_zalloc(sizeof(*wps));
  1057. if (wps == NULL)
  1058. return -1;
  1059. wps->cred_cb = wpa_supplicant_wps_cred;
  1060. wps->event_cb = wpa_supplicant_wps_event;
  1061. wps->cb_ctx = wpa_s;
  1062. wps->dev.device_name = wpa_s->conf->device_name;
  1063. wps->dev.manufacturer = wpa_s->conf->manufacturer;
  1064. wps->dev.model_name = wpa_s->conf->model_name;
  1065. wps->dev.model_number = wpa_s->conf->model_number;
  1066. wps->dev.serial_number = wpa_s->conf->serial_number;
  1067. wps->config_methods =
  1068. wps_config_methods_str2bin(wpa_s->conf->config_methods);
  1069. if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
  1070. (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
  1071. wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
  1072. "methods are not allowed at the same time");
  1073. os_free(wps);
  1074. return -1;
  1075. }
  1076. wps->config_methods = wps_fix_config_methods(wps->config_methods);
  1077. wps->dev.config_methods = wps->config_methods;
  1078. os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
  1079. WPS_DEV_TYPE_LEN);
  1080. wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
  1081. os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
  1082. WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
  1083. wpas_wps_set_vendor_ext_m1(wpa_s, wps);
  1084. wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
  1085. modes = wpa_s->hw.modes;
  1086. if (modes) {
  1087. for (m = 0; m < wpa_s->hw.num_modes; m++) {
  1088. if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
  1089. modes[m].mode == HOSTAPD_MODE_IEEE80211G)
  1090. wps->dev.rf_bands |= WPS_RF_24GHZ;
  1091. else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
  1092. wps->dev.rf_bands |= WPS_RF_50GHZ;
  1093. }
  1094. }
  1095. if (wps->dev.rf_bands == 0) {
  1096. /*
  1097. * Default to claiming support for both bands if the driver
  1098. * does not provide support for fetching supported bands.
  1099. */
  1100. wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
  1101. }
  1102. os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
  1103. wpas_wps_set_uuid(wpa_s, wps);
  1104. wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
  1105. wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
  1106. os_memset(&rcfg, 0, sizeof(rcfg));
  1107. rcfg.new_psk_cb = wpas_wps_new_psk_cb;
  1108. rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
  1109. rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
  1110. rcfg.cb_ctx = wpa_s;
  1111. wps->registrar = wps_registrar_init(wps, &rcfg);
  1112. if (wps->registrar == NULL) {
  1113. wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
  1114. os_free(wps);
  1115. return -1;
  1116. }
  1117. wpa_s->wps = wps;
  1118. return 0;
  1119. }
  1120. void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
  1121. {
  1122. eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
  1123. eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
  1124. wpas_wps_clear_ap_info(wpa_s);
  1125. if (wpa_s->wps == NULL)
  1126. return;
  1127. #ifdef CONFIG_WPS_ER
  1128. wps_er_deinit(wpa_s->wps_er, NULL, NULL);
  1129. wpa_s->wps_er = NULL;
  1130. #endif /* CONFIG_WPS_ER */
  1131. wps_registrar_deinit(wpa_s->wps->registrar);
  1132. wpabuf_free(wpa_s->wps->dh_pubkey);
  1133. wpabuf_free(wpa_s->wps->dh_privkey);
  1134. wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
  1135. os_free(wpa_s->wps->network_key);
  1136. os_free(wpa_s->wps);
  1137. wpa_s->wps = NULL;
  1138. }
  1139. int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
  1140. struct wpa_ssid *ssid, struct wpa_bss *bss)
  1141. {
  1142. struct wpabuf *wps_ie;
  1143. if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
  1144. return -1;
  1145. wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
  1146. if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
  1147. if (!wps_ie) {
  1148. wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
  1149. return 0;
  1150. }
  1151. if (!wps_is_selected_pbc_registrar(wps_ie)) {
  1152. wpa_printf(MSG_DEBUG, " skip - WPS AP "
  1153. "without active PBC Registrar");
  1154. wpabuf_free(wps_ie);
  1155. return 0;
  1156. }
  1157. /* TODO: overlap detection */
  1158. wpa_printf(MSG_DEBUG, " selected based on WPS IE "
  1159. "(Active PBC)");
  1160. wpabuf_free(wps_ie);
  1161. return 1;
  1162. }
  1163. if (eap_is_wps_pin_enrollee(&ssid->eap)) {
  1164. if (!wps_ie) {
  1165. wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
  1166. return 0;
  1167. }
  1168. /*
  1169. * Start with WPS APs that advertise our address as an
  1170. * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
  1171. * allow any WPS AP after couple of scans since some APs do not
  1172. * set Selected Registrar attribute properly when using
  1173. * external Registrar.
  1174. */
  1175. if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
  1176. if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
  1177. wpa_printf(MSG_DEBUG, " skip - WPS AP "
  1178. "without active PIN Registrar");
  1179. wpabuf_free(wps_ie);
  1180. return 0;
  1181. }
  1182. wpa_printf(MSG_DEBUG, " selected based on WPS IE");
  1183. } else {
  1184. wpa_printf(MSG_DEBUG, " selected based on WPS IE "
  1185. "(Authorized MAC or Active PIN)");
  1186. }
  1187. wpabuf_free(wps_ie);
  1188. return 1;
  1189. }
  1190. if (wps_ie) {
  1191. wpa_printf(MSG_DEBUG, " selected based on WPS IE");
  1192. wpabuf_free(wps_ie);
  1193. return 1;
  1194. }
  1195. return -1;
  1196. }
  1197. int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
  1198. struct wpa_ssid *ssid,
  1199. struct wpa_bss *bss)
  1200. {
  1201. struct wpabuf *wps_ie = NULL;
  1202. int ret = 0;
  1203. if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
  1204. wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
  1205. if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
  1206. /* allow wildcard SSID for WPS PBC */
  1207. ret = 1;
  1208. }
  1209. } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
  1210. wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
  1211. if (wps_ie &&
  1212. (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
  1213. wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
  1214. /* allow wildcard SSID for WPS PIN */
  1215. ret = 1;
  1216. }
  1217. }
  1218. if (!ret && ssid->bssid_set &&
  1219. os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
  1220. /* allow wildcard SSID due to hardcoded BSSID match */
  1221. ret = 1;
  1222. }
  1223. #ifdef CONFIG_WPS_STRICT
  1224. if (wps_ie) {
  1225. if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
  1226. 0, bss->bssid) < 0)
  1227. ret = 0;
  1228. if (bss->beacon_ie_len) {
  1229. struct wpabuf *bcn_wps;
  1230. bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
  1231. bss, WPS_IE_VENDOR_TYPE);
  1232. if (bcn_wps == NULL) {
  1233. wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
  1234. "missing from AP Beacon");
  1235. ret = 0;
  1236. } else {
  1237. if (wps_validate_beacon(wps_ie) < 0)
  1238. ret = 0;
  1239. wpabuf_free(bcn_wps);
  1240. }
  1241. }
  1242. }
  1243. #endif /* CONFIG_WPS_STRICT */
  1244. wpabuf_free(wps_ie);
  1245. return ret;
  1246. }
  1247. int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
  1248. struct wpa_bss *selected, struct wpa_ssid *ssid)
  1249. {
  1250. const u8 *sel_uuid, *uuid;
  1251. struct wpabuf *wps_ie;
  1252. int ret = 0;
  1253. struct wpa_bss *bss;
  1254. if (!eap_is_wps_pbc_enrollee(&ssid->eap))
  1255. return 0;
  1256. wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
  1257. "present in scan results; selected BSSID " MACSTR,
  1258. MAC2STR(selected->bssid));
  1259. /* Make sure that only one AP is in active PBC mode */
  1260. wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
  1261. if (wps_ie) {
  1262. sel_uuid = wps_get_uuid_e(wps_ie);
  1263. wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
  1264. sel_uuid, UUID_LEN);
  1265. } else {
  1266. wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
  1267. "WPS IE?!");
  1268. sel_uuid = NULL;
  1269. }
  1270. dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
  1271. struct wpabuf *ie;
  1272. if (bss == selected)
  1273. continue;
  1274. ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
  1275. if (!ie)
  1276. continue;
  1277. if (!wps_is_selected_pbc_registrar(ie)) {
  1278. wpabuf_free(ie);
  1279. continue;
  1280. }
  1281. wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
  1282. MACSTR, MAC2STR(bss->bssid));
  1283. uuid = wps_get_uuid_e(ie);
  1284. wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
  1285. uuid, UUID_LEN);
  1286. if (sel_uuid == NULL || uuid == NULL ||
  1287. os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
  1288. ret = 1; /* PBC overlap */
  1289. wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
  1290. MACSTR " and " MACSTR,
  1291. MAC2STR(selected->bssid),
  1292. MAC2STR(bss->bssid));
  1293. wpabuf_free(ie);
  1294. break;
  1295. }
  1296. /* TODO: verify that this is reasonable dual-band situation */
  1297. wpabuf_free(ie);
  1298. }
  1299. wpabuf_free(wps_ie);
  1300. return ret;
  1301. }
  1302. void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
  1303. {
  1304. struct wpa_bss *bss;
  1305. unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
  1306. if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
  1307. return;
  1308. dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
  1309. struct wpabuf *ie;
  1310. ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
  1311. if (!ie)
  1312. continue;
  1313. if (wps_is_selected_pbc_registrar(ie))
  1314. pbc++;
  1315. else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
  1316. auth++;
  1317. else if (wps_is_selected_pin_registrar(ie))
  1318. pin++;
  1319. else
  1320. wps++;
  1321. wpabuf_free(ie);
  1322. }
  1323. if (pbc)
  1324. wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
  1325. else if (auth)
  1326. wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
  1327. else if (pin)
  1328. wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
  1329. else if (wps)
  1330. wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
  1331. }
  1332. int wpas_wps_searching(struct wpa_supplicant *wpa_s)
  1333. {
  1334. struct wpa_ssid *ssid;
  1335. for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
  1336. if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
  1337. return 1;
  1338. }
  1339. return 0;
  1340. }
  1341. int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
  1342. char *end)
  1343. {
  1344. struct wpabuf *wps_ie;
  1345. int ret;
  1346. wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
  1347. if (wps_ie == NULL)
  1348. return 0;
  1349. ret = wps_attr_text(wps_ie, buf, end);
  1350. wpabuf_free(wps_ie);
  1351. return ret;
  1352. }
  1353. int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
  1354. {
  1355. #ifdef CONFIG_WPS_ER
  1356. if (wpa_s->wps_er) {
  1357. wps_er_refresh(wpa_s->wps_er);
  1358. return 0;
  1359. }
  1360. wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
  1361. if (wpa_s->wps_er == NULL)
  1362. return -1;
  1363. return 0;
  1364. #else /* CONFIG_WPS_ER */
  1365. return 0;
  1366. #endif /* CONFIG_WPS_ER */
  1367. }
  1368. int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
  1369. {
  1370. #ifdef CONFIG_WPS_ER
  1371. wps_er_deinit(wpa_s->wps_er, NULL, NULL);
  1372. wpa_s->wps_er = NULL;
  1373. #endif /* CONFIG_WPS_ER */
  1374. return 0;
  1375. }
  1376. #ifdef CONFIG_WPS_ER
  1377. int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
  1378. const char *uuid, const char *pin)
  1379. {
  1380. u8 u[UUID_LEN];
  1381. int any = 0;
  1382. if (os_strcmp(uuid, "any") == 0)
  1383. any = 1;
  1384. else if (uuid_str2bin(uuid, u))
  1385. return -1;
  1386. return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
  1387. any ? NULL : u,
  1388. (const u8 *) pin, os_strlen(pin), 300);
  1389. }
  1390. int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
  1391. {
  1392. u8 u[UUID_LEN];
  1393. if (uuid_str2bin(uuid, u))
  1394. return -1;
  1395. return wps_er_pbc(wpa_s->wps_er, u);
  1396. }
  1397. int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
  1398. const char *pin)
  1399. {
  1400. u8 u[UUID_LEN];
  1401. if (uuid_str2bin(uuid, u))
  1402. return -1;
  1403. return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
  1404. os_strlen(pin));
  1405. }
  1406. int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
  1407. int id)
  1408. {
  1409. u8 u[UUID_LEN];
  1410. struct wpa_ssid *ssid;
  1411. struct wps_credential cred;
  1412. if (uuid_str2bin(uuid, u))
  1413. return -1;
  1414. ssid = wpa_config_get_network(wpa_s->conf, id);
  1415. if (ssid == NULL || ssid->ssid == NULL)
  1416. return -1;
  1417. os_memset(&cred, 0, sizeof(cred));
  1418. if (ssid->ssid_len > 32)
  1419. return -1;
  1420. os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
  1421. cred.ssid_len = ssid->ssid_len;
  1422. if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
  1423. cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
  1424. WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
  1425. if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
  1426. cred.encr_type = WPS_ENCR_AES;
  1427. else
  1428. cred.encr_type = WPS_ENCR_TKIP;
  1429. if (ssid->passphrase) {
  1430. cred.key_len = os_strlen(ssid->passphrase);
  1431. if (cred.key_len >= 64)
  1432. return -1;
  1433. os_memcpy(cred.key, ssid->passphrase, cred.key_len);
  1434. } else if (ssid->psk_set) {
  1435. cred.key_len = 32;
  1436. os_memcpy(cred.key, ssid->psk, 32);
  1437. } else
  1438. return -1;
  1439. } else {
  1440. cred.auth_type = WPS_AUTH_OPEN;
  1441. cred.encr_type = WPS_ENCR_NONE;
  1442. }
  1443. return wps_er_set_config(wpa_s->wps_er, u, &cred);
  1444. }
  1445. int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
  1446. const char *pin, struct wps_new_ap_settings *settings)
  1447. {
  1448. u8 u[UUID_LEN];
  1449. struct wps_credential cred;
  1450. size_t len;
  1451. if (uuid_str2bin(uuid, u))
  1452. return -1;
  1453. if (settings->ssid_hex == NULL || settings->auth == NULL ||
  1454. settings->encr == NULL || settings->key_hex == NULL)
  1455. return -1;
  1456. os_memset(&cred, 0, sizeof(cred));
  1457. len = os_strlen(settings->ssid_hex);
  1458. if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
  1459. hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
  1460. return -1;
  1461. cred.ssid_len = len / 2;
  1462. len = os_strlen(settings->key_hex);
  1463. if ((len & 1) || len > 2 * sizeof(cred.key) ||
  1464. hexstr2bin(settings->key_hex, cred.key, len / 2))
  1465. return -1;
  1466. cred.key_len = len / 2;
  1467. if (os_strcmp(settings->auth, "OPEN") == 0)
  1468. cred.auth_type = WPS_AUTH_OPEN;
  1469. else if (os_strcmp(settings->auth, "WPAPSK") == 0)
  1470. cred.auth_type = WPS_AUTH_WPAPSK;
  1471. else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
  1472. cred.auth_type = WPS_AUTH_WPA2PSK;
  1473. else
  1474. return -1;
  1475. if (os_strcmp(settings->encr, "NONE") == 0)
  1476. cred.encr_type = WPS_ENCR_NONE;
  1477. else if (os_strcmp(settings->encr, "WEP") == 0)
  1478. cred.encr_type = WPS_ENCR_WEP;
  1479. else if (os_strcmp(settings->encr, "TKIP") == 0)
  1480. cred.encr_type = WPS_ENCR_TKIP;
  1481. else if (os_strcmp(settings->encr, "CCMP") == 0)
  1482. cred.encr_type = WPS_ENCR_AES;
  1483. else
  1484. return -1;
  1485. return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
  1486. os_strlen(pin), &cred);
  1487. }
  1488. #ifdef CONFIG_WPS_NFC
  1489. struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
  1490. int ndef, const char *uuid)
  1491. {
  1492. struct wpabuf *ret;
  1493. u8 u[UUID_LEN];
  1494. if (!wpa_s->wps_er)
  1495. return NULL;
  1496. if (uuid_str2bin(uuid, u))
  1497. return NULL;
  1498. ret = wps_er_nfc_config_token(wpa_s->wps_er, u);
  1499. if (ndef && ret) {
  1500. struct wpabuf *tmp;
  1501. tmp = ndef_build_wifi(ret);
  1502. wpabuf_free(ret);
  1503. if (tmp == NULL)
  1504. return NULL;
  1505. ret = tmp;
  1506. }
  1507. return ret;
  1508. }
  1509. #endif /* CONFIG_WPS_NFC */
  1510. static int callbacks_pending = 0;
  1511. static void wpas_wps_terminate_cb(void *ctx)
  1512. {
  1513. wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
  1514. if (--callbacks_pending <= 0)
  1515. eloop_terminate();
  1516. }
  1517. #endif /* CONFIG_WPS_ER */
  1518. int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
  1519. {
  1520. #ifdef CONFIG_WPS_ER
  1521. if (wpa_s->wps_er) {
  1522. callbacks_pending++;
  1523. wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
  1524. wpa_s->wps_er = NULL;
  1525. return 1;
  1526. }
  1527. #endif /* CONFIG_WPS_ER */
  1528. return 0;
  1529. }
  1530. int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
  1531. {
  1532. struct wpa_ssid *ssid;
  1533. for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
  1534. if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
  1535. return 1;
  1536. }
  1537. return 0;
  1538. }
  1539. void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
  1540. {
  1541. struct wps_context *wps = wpa_s->wps;
  1542. if (wps == NULL)
  1543. return;
  1544. if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
  1545. wps->config_methods = wps_config_methods_str2bin(
  1546. wpa_s->conf->config_methods);
  1547. if ((wps->config_methods &
  1548. (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
  1549. (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
  1550. wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
  1551. "config methods are not allowed at the "
  1552. "same time");
  1553. wps->config_methods &= ~WPS_CONFIG_LABEL;
  1554. }
  1555. }
  1556. wps->config_methods = wps_fix_config_methods(wps->config_methods);
  1557. wps->dev.config_methods = wps->config_methods;
  1558. if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
  1559. os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
  1560. WPS_DEV_TYPE_LEN);
  1561. if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
  1562. wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
  1563. os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
  1564. wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
  1565. }
  1566. if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
  1567. wpas_wps_set_vendor_ext_m1(wpa_s, wps);
  1568. if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
  1569. wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
  1570. if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
  1571. wpas_wps_set_uuid(wpa_s, wps);
  1572. if (wpa_s->conf->changed_parameters &
  1573. (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
  1574. /* Update pointers to make sure they refer current values */
  1575. wps->dev.device_name = wpa_s->conf->device_name;
  1576. wps->dev.manufacturer = wpa_s->conf->manufacturer;
  1577. wps->dev.model_name = wpa_s->conf->model_name;
  1578. wps->dev.model_number = wpa_s->conf->model_number;
  1579. wps->dev.serial_number = wpa_s->conf->serial_number;
  1580. }
  1581. }
  1582. #ifdef CONFIG_WPS_NFC
  1583. struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
  1584. int ndef)
  1585. {
  1586. #ifdef CONFIG_AP
  1587. if (wpa_s->ap_iface)
  1588. return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
  1589. #endif /* CONFIG_AP */
  1590. return NULL;
  1591. }
  1592. struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
  1593. {
  1594. if (wpa_s->conf->wps_nfc_pw_from_config) {
  1595. return wps_nfc_token_build(ndef,
  1596. wpa_s->conf->wps_nfc_dev_pw_id,
  1597. wpa_s->conf->wps_nfc_dh_pubkey,
  1598. wpa_s->conf->wps_nfc_dev_pw);
  1599. }
  1600. return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
  1601. &wpa_s->conf->wps_nfc_dh_pubkey,
  1602. &wpa_s->conf->wps_nfc_dh_privkey,
  1603. &wpa_s->conf->wps_nfc_dev_pw);
  1604. }
  1605. int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid)
  1606. {
  1607. struct wps_context *wps = wpa_s->wps;
  1608. char pw[32 * 2 + 1];
  1609. if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
  1610. wpa_s->conf->wps_nfc_dh_privkey == NULL ||
  1611. wpa_s->conf->wps_nfc_dev_pw == NULL)
  1612. return -1;
  1613. dh5_free(wps->dh_ctx);
  1614. wpabuf_free(wps->dh_pubkey);
  1615. wpabuf_free(wps->dh_privkey);
  1616. wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
  1617. wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
  1618. if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
  1619. wps->dh_ctx = NULL;
  1620. wpabuf_free(wps->dh_pubkey);
  1621. wps->dh_pubkey = NULL;
  1622. wpabuf_free(wps->dh_privkey);
  1623. wps->dh_privkey = NULL;
  1624. return -1;
  1625. }
  1626. wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
  1627. if (wps->dh_ctx == NULL)
  1628. return -1;
  1629. wpa_snprintf_hex_uppercase(pw, sizeof(pw),
  1630. wpabuf_head(wpa_s->conf->wps_nfc_dev_pw),
  1631. wpabuf_len(wpa_s->conf->wps_nfc_dev_pw));
  1632. return wpas_wps_start_pin(wpa_s, bssid, pw, 0,
  1633. wpa_s->conf->wps_nfc_dev_pw_id);
  1634. }
  1635. static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
  1636. struct wps_parse_attr *attr)
  1637. {
  1638. wpa_s->wps_ap_channel = 0;
  1639. if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
  1640. return -1;
  1641. if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
  1642. return 0;
  1643. wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
  1644. "based on the received credential added");
  1645. wpa_s->normal_scans = 0;
  1646. wpa_supplicant_reinit_autoscan(wpa_s);
  1647. if (wpa_s->wps_ap_channel) {
  1648. u16 chan = wpa_s->wps_ap_channel;
  1649. int freq = 0;
  1650. if (chan >= 1 && chan <= 13)
  1651. freq = 2407 + 5 * chan;
  1652. else if (chan == 14)
  1653. freq = 2484;
  1654. else if (chan >= 30)
  1655. freq = 5000 + 5 * chan;
  1656. if (freq) {
  1657. wpa_printf(MSG_DEBUG, "WPS: Credential indicated "
  1658. "AP channel %u -> %u MHz", chan, freq);
  1659. wpa_s->after_wps = 5;
  1660. wpa_s->wps_freq = freq;
  1661. }
  1662. }
  1663. wpa_s->disconnected = 0;
  1664. wpa_s->reassociate = 1;
  1665. wpa_supplicant_req_scan(wpa_s, 0, 0);
  1666. return 0;
  1667. }
  1668. #ifdef CONFIG_WPS_ER
  1669. static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
  1670. struct wps_parse_attr *attr)
  1671. {
  1672. return wps_registrar_add_nfc_password_token(
  1673. wpa_s->wps->registrar, attr->oob_dev_password,
  1674. attr->oob_dev_password_len);
  1675. }
  1676. #endif /* CONFIG_WPS_ER */
  1677. static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
  1678. const struct wpabuf *wps)
  1679. {
  1680. struct wps_parse_attr attr;
  1681. wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
  1682. if (wps_parse_msg(wps, &attr)) {
  1683. wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
  1684. return -1;
  1685. }
  1686. if (attr.num_cred)
  1687. return wpas_wps_use_cred(wpa_s, &attr);
  1688. #ifdef CONFIG_WPS_ER
  1689. if (attr.oob_dev_password)
  1690. return wpas_wps_add_nfc_password_token(wpa_s, &attr);
  1691. #endif /* CONFIG_WPS_ER */
  1692. wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
  1693. return -1;
  1694. }
  1695. int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
  1696. const struct wpabuf *data)
  1697. {
  1698. const struct wpabuf *wps = data;
  1699. struct wpabuf *tmp = NULL;
  1700. int ret;
  1701. if (wpabuf_len(data) < 4)
  1702. return -1;
  1703. if (*wpabuf_head_u8(data) != 0x10) {
  1704. /* Assume this contains full NDEF record */
  1705. tmp = ndef_parse_wifi(data);
  1706. if (tmp == NULL) {
  1707. wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
  1708. return -1;
  1709. }
  1710. wps = tmp;
  1711. }
  1712. ret = wpas_wps_nfc_tag_process(wpa_s, wps);
  1713. wpabuf_free(tmp);
  1714. return ret;
  1715. }
  1716. struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, int cr)
  1717. {
  1718. if (cr)
  1719. return ndef_build_wifi_hc(1);
  1720. return ndef_build_wifi_hr();
  1721. }
  1722. #ifdef CONFIG_WPS_NFC
  1723. struct wpabuf * wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s,
  1724. int ndef, const char *uuid)
  1725. {
  1726. #ifdef CONFIG_WPS_ER
  1727. struct wpabuf *ret;
  1728. u8 u[UUID_LEN];
  1729. if (!wpa_s->wps_er)
  1730. return NULL;
  1731. if (uuid == NULL || uuid_str2bin(uuid, u))
  1732. return NULL;
  1733. /*
  1734. * Handover Select carrier record for WPS uses the same format as
  1735. * configuration token.
  1736. */
  1737. ret = wps_er_nfc_config_token(wpa_s->wps_er, u);
  1738. if (ndef && ret) {
  1739. struct wpabuf *tmp;
  1740. tmp = ndef_build_wifi(ret);
  1741. wpabuf_free(ret);
  1742. if (tmp == NULL)
  1743. return NULL;
  1744. ret = tmp;
  1745. }
  1746. return ret;
  1747. #else /* CONFIG_WPS_ER */
  1748. return NULL;
  1749. #endif /* CONFIG_WPS_ER */
  1750. }
  1751. #endif /* CONFIG_WPS_NFC */
  1752. struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
  1753. int ndef, int cr, const char *uuid)
  1754. {
  1755. struct wpabuf *ret;
  1756. if (!cr)
  1757. return NULL;
  1758. ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
  1759. if (ret)
  1760. return ret;
  1761. return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
  1762. }
  1763. int wpas_wps_nfc_rx_handover_req(struct wpa_supplicant *wpa_s,
  1764. const struct wpabuf *data)
  1765. {
  1766. /* TODO */
  1767. return -1;
  1768. }
  1769. int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
  1770. const struct wpabuf *data)
  1771. {
  1772. struct wpabuf *wps;
  1773. int ret;
  1774. wps = ndef_parse_wifi(data);
  1775. if (wps == NULL)
  1776. return -1;
  1777. wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
  1778. "payload from NFC connection handover");
  1779. wpa_hexdump_buf_key(MSG_DEBUG, "WPS: NFC payload", wps);
  1780. ret = wpas_wps_nfc_tag_process(wpa_s, wps);
  1781. wpabuf_free(wps);
  1782. return ret;
  1783. }
  1784. int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
  1785. const struct wpabuf *req,
  1786. const struct wpabuf *sel)
  1787. {
  1788. wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
  1789. wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
  1790. wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
  1791. return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
  1792. }
  1793. #endif /* CONFIG_WPS_NFC */
  1794. extern int wpa_debug_level;
  1795. static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
  1796. {
  1797. size_t i;
  1798. struct os_time now;
  1799. if (wpa_debug_level > MSG_DEBUG)
  1800. return;
  1801. if (wpa_s->wps_ap == NULL)
  1802. return;
  1803. os_get_time(&now);
  1804. for (i = 0; i < wpa_s->num_wps_ap; i++) {
  1805. struct wps_ap_info *ap = &wpa_s->wps_ap[i];
  1806. struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
  1807. wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
  1808. "tries=%d last_attempt=%d sec ago blacklist=%d",
  1809. (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
  1810. ap->last_attempt.sec > 0 ?
  1811. (int) now.sec - (int) ap->last_attempt.sec : -1,
  1812. e ? e->count : 0);
  1813. }
  1814. }
  1815. static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
  1816. const u8 *bssid)
  1817. {
  1818. size_t i;
  1819. if (wpa_s->wps_ap == NULL)
  1820. return NULL;
  1821. for (i = 0; i < wpa_s->num_wps_ap; i++) {
  1822. struct wps_ap_info *ap = &wpa_s->wps_ap[i];
  1823. if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
  1824. return ap;
  1825. }
  1826. return NULL;
  1827. }
  1828. static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
  1829. struct wpa_scan_res *res)
  1830. {
  1831. struct wpabuf *wps;
  1832. enum wps_ap_info_type type;
  1833. struct wps_ap_info *ap;
  1834. int r;
  1835. if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
  1836. return;
  1837. wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
  1838. if (wps == NULL)
  1839. return;
  1840. r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
  1841. if (r == 2)
  1842. type = WPS_AP_SEL_REG_OUR;
  1843. else if (r == 1)
  1844. type = WPS_AP_SEL_REG;
  1845. else
  1846. type = WPS_AP_NOT_SEL_REG;
  1847. wpabuf_free(wps);
  1848. ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
  1849. if (ap) {
  1850. if (ap->type != type) {
  1851. wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
  1852. " changed type %d -> %d",
  1853. MAC2STR(res->bssid), ap->type, type);
  1854. ap->type = type;
  1855. if (type != WPS_AP_NOT_SEL_REG)
  1856. wpa_blacklist_del(wpa_s, ap->bssid);
  1857. }
  1858. return;
  1859. }
  1860. ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
  1861. sizeof(struct wps_ap_info));
  1862. if (ap == NULL)
  1863. return;
  1864. wpa_s->wps_ap = ap;
  1865. ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
  1866. wpa_s->num_wps_ap++;
  1867. os_memset(ap, 0, sizeof(*ap));
  1868. os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
  1869. ap->type = type;
  1870. wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
  1871. MAC2STR(ap->bssid), ap->type);
  1872. }
  1873. void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
  1874. struct wpa_scan_results *scan_res)
  1875. {
  1876. size_t i;
  1877. for (i = 0; i < scan_res->num; i++)
  1878. wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
  1879. wpas_wps_dump_ap_info(wpa_s);
  1880. }
  1881. void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
  1882. {
  1883. struct wps_ap_info *ap;
  1884. if (!wpa_s->wps_ap_iter)
  1885. return;
  1886. ap = wpas_wps_get_ap_info(wpa_s, bssid);
  1887. if (ap == NULL)
  1888. return;
  1889. ap->tries++;
  1890. os_get_time(&ap->last_attempt);
  1891. }