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Jouni Malinenfa201b62008-11-28 19:46:22 +02001/*
2 * wpa_supplicant / WPS integration
Jouni Malinen59307b32013-04-01 20:32:09 +03003 * Copyright (c) 2008-2013, Jouni Malinen <j@w1.fi>
Jouni Malinenfa201b62008-11-28 19:46:22 +02004 *
Jouni Malinen0f3d5782012-02-11 16:46:35 +02005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Jouni Malinenfa201b62008-11-28 19:46:22 +02007 */
8
9#include "includes.h"
10
11#include "common.h"
Jouni Malinen03da66b2009-11-29 23:04:43 +020012#include "eloop.h"
13#include "uuid.h"
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +030014#include "crypto/random.h"
Jouni Malinen03da66b2009-11-29 23:04:43 +020015#include "crypto/dh_group5.h"
Jouni Malinen90973fb2009-11-29 17:51:55 +020016#include "common/ieee802_11_defs.h"
17#include "common/ieee802_11_common.h"
18#include "common/wpa_common.h"
Jouni Malinen03da66b2009-11-29 23:04:43 +020019#include "common/wpa_ctrl.h"
20#include "eap_common/eap_wsc_common.h"
Jouni Malinenb01c18a2008-11-29 13:38:03 +020021#include "eap_peer/eap.h"
Jouni Malinen20a0b032011-06-27 19:02:24 +030022#include "eapol_supp/eapol_supp_sm.h"
Jouni Malinen03da66b2009-11-29 23:04:43 +020023#include "rsn_supp/wpa.h"
Jouni Malinend7645d22012-06-28 13:59:29 +030024#include "wps/wps_attr_parse.h"
Jouni Malinen03da66b2009-11-29 23:04:43 +020025#include "config.h"
Jouni Malinenfa201b62008-11-28 19:46:22 +020026#include "wpa_supplicant_i.h"
Jouni Malinen2d5b7922009-03-26 20:37:05 +020027#include "driver_i.h"
Jouni Malinen8bac4662009-09-13 20:53:32 +030028#include "notify.h"
Jouni Malinena6099152009-01-23 13:10:58 +020029#include "blacklist.h"
Jouni Malinen59f2caa2010-01-02 13:36:12 +020030#include "bss.h"
Jouni Malinen9ba9fa02010-01-03 18:48:11 +020031#include "scan.h"
Ardong Chen2f9929f2010-09-06 20:51:06 +030032#include "ap.h"
Jouni Malinene9a7ae42010-08-05 09:15:11 -070033#include "p2p/p2p.h"
Jouni Malinenb22128e2010-07-18 14:30:25 -070034#include "p2p_supplicant.h"
Jouni Malinenfa201b62008-11-28 19:46:22 +020035#include "wps_supplicant.h"
36
Jouni Malinenf7e54362009-12-28 16:07:15 +020037
Jouni Malinen31fcea92009-12-12 16:40:10 +020038#ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
Jouni Malinena6099152009-01-23 13:10:58 +020039#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
Jouni Malinen31fcea92009-12-12 16:40:10 +020040#endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
Jouni Malinenfa201b62008-11-28 19:46:22 +020041
Jouni Malinenfcc60db2008-11-29 20:59:45 +020042static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
Jouni Malinen469fc3a2008-12-19 22:19:41 +020043static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
Jouni Malinenfcc60db2008-11-29 20:59:45 +020044
45
Jouni Malinenf9f05262012-08-27 13:48:11 +030046static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
47{
48 os_free(wpa_s->wps_ap);
49 wpa_s->wps_ap = NULL;
50 wpa_s->num_wps_ap = 0;
51 wpa_s->wps_ap_iter = 0;
52}
53
54
Jouni Malinenfa201b62008-11-28 19:46:22 +020055int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
56{
Jouni Malinena6099152009-01-23 13:10:58 +020057 if (!wpa_s->wps_success &&
58 wpa_s->current_ssid &&
59 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
60 const u8 *bssid = wpa_s->bssid;
61 if (is_zero_ether_addr(bssid))
62 bssid = wpa_s->pending_bssid;
63
64 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
65 " did not succeed - continue trying to find "
66 "suitable AP", MAC2STR(bssid));
67 wpa_blacklist_add(wpa_s, bssid);
68
69 wpa_supplicant_deauthenticate(wpa_s,
70 WLAN_REASON_DEAUTH_LEAVING);
71 wpa_s->reassociate = 1;
72 wpa_supplicant_req_scan(wpa_s,
73 wpa_s->blacklist_cleared ? 5 : 0, 0);
74 wpa_s->blacklist_cleared = 0;
75 return 1;
76 }
77
Jouni Malinenf9f05262012-08-27 13:48:11 +030078 wpas_wps_clear_ap_info(wpa_s);
Jouni Malinenfcc60db2008-11-29 20:59:45 +020079 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
Chao-Wen Yang449adba2011-01-13 18:04:33 +020080 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
81 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
Jouni Malinenfcc60db2008-11-29 20:59:45 +020082
Jouni Malinenfa201b62008-11-28 19:46:22 +020083 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
84 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
Jouni Malinenf981eab2010-12-22 11:33:59 +020085 int disabled = wpa_s->current_ssid->disabled;
Jouni Malinena565c232012-02-12 13:54:15 +020086 unsigned int freq = wpa_s->assoc_freq;
Masashi Honma97236ce2013-03-31 20:06:42 +030087 struct wpa_bss *bss;
88 struct wpa_ssid *ssid = NULL;
89 int use_fast_assoc = 0;
90
Jouni Malinenfa201b62008-11-28 19:46:22 +020091 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
Jouni Malinena565c232012-02-12 13:54:15 +020092 "try to associate with the received credential "
93 "(freq=%u)", freq);
Jouni Malinenfa201b62008-11-28 19:46:22 +020094 wpa_supplicant_deauthenticate(wpa_s,
95 WLAN_REASON_DEAUTH_LEAVING);
Jouni Malinenf981eab2010-12-22 11:33:59 +020096 if (disabled) {
97 wpa_printf(MSG_DEBUG, "WPS: Current network is "
98 "disabled - wait for user to enable");
99 return 1;
100 }
Jouni Malinen17a47342010-04-11 19:06:42 +0300101 wpa_s->after_wps = 5;
Jouni Malinena565c232012-02-12 13:54:15 +0200102 wpa_s->wps_freq = freq;
Jouni Malinen0b7a25c2011-11-28 18:36:36 +0200103 wpa_s->normal_scans = 0;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200104 wpa_s->reassociate = 1;
Masashi Honma97236ce2013-03-31 20:06:42 +0300105
106 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
107 "without a new scan can be used");
108 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
109 if (bss) {
110 struct wpabuf *wps;
111 struct wps_parse_attr attr;
112
113 wps = wpa_bss_get_vendor_ie_multi(bss,
114 WPS_IE_VENDOR_TYPE);
115 if (wps && wps_parse_msg(wps, &attr) == 0 &&
116 attr.wps_state &&
117 *attr.wps_state == WPS_STATE_CONFIGURED)
118 use_fast_assoc = 1;
119 wpabuf_free(wps);
120 }
121
122 if (!use_fast_assoc ||
123 wpa_supplicant_fast_associate(wpa_s) != 1)
124 wpa_supplicant_req_scan(wpa_s, 0, 0);
Jouni Malinenfa201b62008-11-28 19:46:22 +0200125 return 1;
126 }
127
Jouni Malinen47662162009-01-18 12:27:12 +0200128 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
129 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
130 "for external credential processing");
131 wpas_clear_wps(wpa_s);
132 wpa_supplicant_deauthenticate(wpa_s,
133 WLAN_REASON_DEAUTH_LEAVING);
134 return 1;
135 }
136
Jouni Malinenfa201b62008-11-28 19:46:22 +0200137 return 0;
138}
139
140
Jouni Malinen7cc1b6c2009-03-05 21:39:39 +0200141static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
142 struct wpa_ssid *ssid,
143 const struct wps_credential *cred)
144{
145 struct wpa_driver_capa capa;
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200146 struct wpa_bss *bss;
Jouni Malinen7cc1b6c2009-03-05 21:39:39 +0200147 const u8 *ie;
148 struct wpa_ie_data adv;
149 int wpa2 = 0, ccmp = 0;
150
151 /*
152 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
153 * case they are configured for mixed mode operation (WPA+WPA2 and
154 * TKIP+CCMP). Try to use scan results to figure out whether the AP
155 * actually supports stronger security and select that if the client
156 * has support for it, too.
157 */
158
159 if (wpa_drv_get_capa(wpa_s, &capa))
160 return; /* Unknown what driver supports */
161
Jouni Malinend87e90b2011-07-15 14:21:50 +0300162 if (ssid->ssid == NULL)
163 return;
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200164 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
165 if (bss == NULL) {
166 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
167 "table - use credential as-is");
Jouni Malinen7cc1b6c2009-03-05 21:39:39 +0200168 return;
169 }
170
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200171 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
172
173 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
Jouni Malinen7cc1b6c2009-03-05 21:39:39 +0200174 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
175 wpa2 = 1;
176 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
177 ccmp = 1;
178 } else {
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200179 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
Jouni Malinen7cc1b6c2009-03-05 21:39:39 +0200180 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
181 adv.pairwise_cipher & WPA_CIPHER_CCMP)
182 ccmp = 1;
183 }
184
185 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
186 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
187 /*
188 * TODO: This could be the initial AP configuration and the
189 * Beacon contents could change shortly. Should request a new
190 * scan and delay addition of the network until the updated
191 * scan results are available.
192 */
193 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
194 "support - use credential as-is");
195 return;
196 }
197
198 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
199 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
200 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
201 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
202 "based on scan results");
203 if (wpa_s->conf->ap_scan == 1)
204 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
205 else
206 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
207 }
208
209 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
210 (ssid->proto & WPA_PROTO_WPA) &&
211 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
212 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
213 "based on scan results");
214 if (wpa_s->conf->ap_scan == 1)
215 ssid->proto |= WPA_PROTO_RSN;
216 else
217 ssid->proto = WPA_PROTO_RSN;
218 }
219}
220
221
Vinayak Kamath741ed9f2013-04-30 13:35:50 +0300222static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
223 struct wpa_ssid *new_ssid)
224{
225 struct wpa_ssid *ssid, *next;
226
227 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
228 ssid = next, next = ssid ? ssid->next : NULL) {
229 /*
230 * new_ssid has already been added to the list in
231 * wpas_wps_add_network(), so skip it.
232 */
233 if (ssid == new_ssid)
234 continue;
235
236 if (ssid->bssid_set || new_ssid->bssid_set) {
237 if (ssid->bssid_set != new_ssid->bssid_set)
238 continue;
239 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
240 0)
241 continue;
242 }
243
244 /* compare SSID */
245 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
246 continue;
247
248 if (ssid->ssid && new_ssid->ssid) {
249 if (os_memcmp(ssid->ssid, new_ssid->ssid,
250 ssid->ssid_len) != 0)
251 continue;
252 } else if (ssid->ssid || new_ssid->ssid)
253 continue;
254
255 /* compare security parameters */
256 if (ssid->auth_alg != new_ssid->auth_alg ||
257 ssid->key_mgmt != new_ssid->key_mgmt ||
258 ssid->proto != new_ssid->proto ||
259 ssid->pairwise_cipher != new_ssid->pairwise_cipher ||
260 ssid->group_cipher != new_ssid->group_cipher)
261 continue;
262
263 if (ssid->passphrase && new_ssid->passphrase) {
264 if (os_strlen(ssid->passphrase) !=
265 os_strlen(new_ssid->passphrase))
266 continue;
267 if (os_strcmp(ssid->passphrase, new_ssid->passphrase) !=
268 0)
269 continue;
270 } else if (ssid->passphrase || new_ssid->passphrase)
271 continue;
272
273 if ((ssid->psk_set || new_ssid->psk_set) &&
274 os_memcmp(ssid->psk, new_ssid->psk, sizeof(ssid->psk)) != 0)
275 continue;
276
277 if (ssid->auth_alg == WPA_ALG_WEP) {
278 if (ssid->wep_tx_keyidx != new_ssid->wep_tx_keyidx)
279 continue;
280 if (os_memcmp(ssid->wep_key, new_ssid->wep_key,
281 sizeof(ssid->wep_key)))
282 continue;
283 if (os_memcmp(ssid->wep_key_len, new_ssid->wep_key_len,
284 sizeof(ssid->wep_key_len)))
285 continue;
286 }
287
288 /* Remove the duplicated older network entry. */
289 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
290 wpas_notify_network_removed(wpa_s, ssid);
291 wpa_config_remove_network(wpa_s->conf, ssid->id);
292 }
293}
294
295
Jouni Malinenbcbbc7a2008-11-28 20:02:32 +0200296static int wpa_supplicant_wps_cred(void *ctx,
297 const struct wps_credential *cred)
Jouni Malinenfa201b62008-11-28 19:46:22 +0200298{
299 struct wpa_supplicant *wpa_s = ctx;
300 struct wpa_ssid *ssid = wpa_s->current_ssid;
Andriy Tkachuk522b5b62009-02-18 19:58:44 +0200301 u8 key_idx = 0;
Jouni Malinen49eba5f2009-08-15 20:40:45 +0300302 u16 auth_type;
Andrii Bordunov2c4f80d2011-10-22 22:21:53 +0300303#ifdef CONFIG_WPS_REG_DISABLE_OPEN
Jouni Malinenf981eab2010-12-22 11:33:59 +0200304 int registrar = 0;
Andrii Bordunov2c4f80d2011-10-22 22:21:53 +0300305#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
Jouni Malinenfa201b62008-11-28 19:46:22 +0200306
Jouni Malinen47662162009-01-18 12:27:12 +0200307 if ((wpa_s->conf->wps_cred_processing == 1 ||
308 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
309 size_t blen = cred->cred_attr_len * 2 + 1;
310 char *buf = os_malloc(blen);
311 if (buf) {
312 wpa_snprintf_hex(buf, blen,
313 cred->cred_attr, cred->cred_attr_len);
314 wpa_msg(wpa_s, MSG_INFO, "%s%s",
315 WPS_EVENT_CRED_RECEIVED, buf);
316 os_free(buf);
317 }
Jouni Malinen8bac4662009-09-13 20:53:32 +0300318
319 wpas_notify_wps_credential(wpa_s, cred);
Jouni Malinen47662162009-01-18 12:27:12 +0200320 } else
321 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
Jouni Malinenfa201b62008-11-28 19:46:22 +0200322
Jouni Malineneca6e0a2009-01-17 22:17:12 +0200323 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
324 cred->cred_attr, cred->cred_attr_len);
325
Jouni Malinen47662162009-01-18 12:27:12 +0200326 if (wpa_s->conf->wps_cred_processing == 1)
327 return 0;
328
Jouni Malinen73267b92009-03-30 19:00:55 +0300329 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
330 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
331 cred->auth_type);
332 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
333 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
334 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
335 cred->key, cred->key_len);
336 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
337 MAC2STR(cred->mac_addr));
338
Jouni Malinen49eba5f2009-08-15 20:40:45 +0300339 auth_type = cred->auth_type;
340 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
341 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
342 "auth_type into WPA2PSK");
343 auth_type = WPS_AUTH_WPA2PSK;
344 }
345
346 if (auth_type != WPS_AUTH_OPEN &&
347 auth_type != WPS_AUTH_SHARED &&
348 auth_type != WPS_AUTH_WPAPSK &&
349 auth_type != WPS_AUTH_WPA2PSK) {
Jouni Malinenf2860772009-01-17 21:45:51 +0200350 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
Jouni Malinen49eba5f2009-08-15 20:40:45 +0300351 "unsupported authentication type 0x%x",
352 auth_type);
Jouni Malinenf2860772009-01-17 21:45:51 +0200353 return 0;
354 }
355
Jouni Malinenb3631212012-11-01 16:30:35 +0200356 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
357 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
358 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
359 "invalid Network Key length %lu",
360 (unsigned long) cred->key_len);
361 return -1;
362 }
363 }
364
Jouni Malinenfa201b62008-11-28 19:46:22 +0200365 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
366 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
367 "on the received credential");
Andrii Bordunov2c4f80d2011-10-22 22:21:53 +0300368#ifdef CONFIG_WPS_REG_DISABLE_OPEN
Jouni Malinenf981eab2010-12-22 11:33:59 +0200369 if (ssid->eap.identity &&
370 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
371 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
372 WSC_ID_REGISTRAR_LEN) == 0)
373 registrar = 1;
Andrii Bordunov2c4f80d2011-10-22 22:21:53 +0300374#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
Jouni Malinenfa201b62008-11-28 19:46:22 +0200375 os_free(ssid->eap.identity);
376 ssid->eap.identity = NULL;
377 ssid->eap.identity_len = 0;
378 os_free(ssid->eap.phase1);
379 ssid->eap.phase1 = NULL;
380 os_free(ssid->eap.eap_methods);
381 ssid->eap.eap_methods = NULL;
Jouni Malinencae21192012-07-25 16:18:12 +0300382 if (!ssid->p2p_group) {
Jouni Malinen2ff99b32010-07-18 14:30:24 -0700383 ssid->temporary = 0;
Jouni Malinencae21192012-07-25 16:18:12 +0300384 ssid->bssid_set = 0;
385 }
Jouni Malinen00e5e3d2012-08-26 23:01:26 +0300386 ssid->disabled_until.sec = 0;
387 ssid->disabled_until.usec = 0;
388 ssid->auth_failures = 0;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200389 } else {
390 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
391 "received credential");
392 ssid = wpa_config_add_network(wpa_s->conf);
393 if (ssid == NULL)
394 return -1;
Jouni Malinen8bac4662009-09-13 20:53:32 +0300395 wpas_notify_network_added(wpa_s, ssid);
Jouni Malinenfa201b62008-11-28 19:46:22 +0200396 }
397
398 wpa_config_set_network_defaults(ssid);
399
400 os_free(ssid->ssid);
401 ssid->ssid = os_malloc(cred->ssid_len);
402 if (ssid->ssid) {
403 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
404 ssid->ssid_len = cred->ssid_len;
405 }
406
407 switch (cred->encr_type) {
408 case WPS_ENCR_NONE:
Jouni Malinenfa201b62008-11-28 19:46:22 +0200409 break;
410 case WPS_ENCR_WEP:
Andriy Tkachuk4b195a12009-02-17 10:30:43 +0200411 if (cred->key_len <= 0)
412 break;
413 if (cred->key_len != 5 && cred->key_len != 13 &&
414 cred->key_len != 10 && cred->key_len != 26) {
415 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
416 "%lu", (unsigned long) cred->key_len);
417 return -1;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200418 }
Andriy Tkachuk522b5b62009-02-18 19:58:44 +0200419 if (cred->key_idx > NUM_WEP_KEYS) {
Andriy Tkachuk4b195a12009-02-17 10:30:43 +0200420 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
421 cred->key_idx);
422 return -1;
423 }
Andriy Tkachuk522b5b62009-02-18 19:58:44 +0200424 if (cred->key_idx)
425 key_idx = cred->key_idx - 1;
Andriy Tkachuk4b195a12009-02-17 10:30:43 +0200426 if (cred->key_len == 10 || cred->key_len == 26) {
427 if (hexstr2bin((char *) cred->key,
428 ssid->wep_key[key_idx],
429 cred->key_len / 2) < 0) {
430 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
431 "%d", key_idx);
432 return -1;
433 }
434 ssid->wep_key_len[key_idx] = cred->key_len / 2;
435 } else {
436 os_memcpy(ssid->wep_key[key_idx], cred->key,
437 cred->key_len);
438 ssid->wep_key_len[key_idx] = cred->key_len;
439 }
440 ssid->wep_tx_keyidx = key_idx;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200441 break;
442 case WPS_ENCR_TKIP:
443 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200444 break;
445 case WPS_ENCR_AES:
446 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200447 break;
448 }
449
Jouni Malinen49eba5f2009-08-15 20:40:45 +0300450 switch (auth_type) {
Jouni Malinenfa201b62008-11-28 19:46:22 +0200451 case WPS_AUTH_OPEN:
452 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
453 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
454 ssid->proto = 0;
Jouni Malinenf981eab2010-12-22 11:33:59 +0200455#ifdef CONFIG_WPS_REG_DISABLE_OPEN
456 if (registrar) {
457 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
458 "id=%d - Credentials for an open "
459 "network disabled by default - use "
460 "'select_network %d' to enable",
461 ssid->id, ssid->id);
462 ssid->disabled = 1;
463 }
464#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
Jouni Malinenfa201b62008-11-28 19:46:22 +0200465 break;
466 case WPS_AUTH_SHARED:
467 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
468 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
469 ssid->proto = 0;
470 break;
471 case WPS_AUTH_WPAPSK:
472 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
473 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
474 ssid->proto = WPA_PROTO_WPA;
475 break;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200476 case WPS_AUTH_WPA2PSK:
477 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
478 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
479 ssid->proto = WPA_PROTO_RSN;
480 break;
481 }
482
483 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
484 if (cred->key_len == 2 * PMK_LEN) {
485 if (hexstr2bin((const char *) cred->key, ssid->psk,
486 PMK_LEN)) {
487 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
488 "Key");
489 return -1;
490 }
491 ssid->psk_set = 1;
Johannes Bergd1c8ac82011-02-02 17:00:12 +0200492 ssid->export_keys = 1;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200493 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
494 os_free(ssid->passphrase);
495 ssid->passphrase = os_malloc(cred->key_len + 1);
496 if (ssid->passphrase == NULL)
497 return -1;
498 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
499 ssid->passphrase[cred->key_len] = '\0';
500 wpa_config_update_psk(ssid);
Johannes Bergd1c8ac82011-02-02 17:00:12 +0200501 ssid->export_keys = 1;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200502 } else {
503 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
504 "length %lu",
505 (unsigned long) cred->key_len);
506 return -1;
507 }
508 }
509
Jouni Malinen7cc1b6c2009-03-05 21:39:39 +0200510 wpas_wps_security_workaround(wpa_s, ssid, cred);
511
Jouni Malinenbd3a3732012-10-28 18:02:04 +0200512 if (cred->ap_channel)
513 wpa_s->wps_ap_channel = cred->ap_channel;
514
Vinayak Kamath741ed9f2013-04-30 13:35:50 +0300515 wpas_wps_remove_dup_network(wpa_s, ssid);
516
Jouni Malinenfa201b62008-11-28 19:46:22 +0200517#ifndef CONFIG_NO_CONFIG_WRITE
518 if (wpa_s->conf->update_config &&
519 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
520 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
521 return -1;
522 }
523#endif /* CONFIG_NO_CONFIG_WRITE */
524
Sunil Dutt6fbcbc02012-12-21 15:30:39 +0200525 /*
526 * Optimize the post-WPS scan based on the channel used during
527 * the provisioning in case EAP-Failure is not received.
528 */
529 wpa_s->after_wps = 5;
530 wpa_s->wps_freq = wpa_s->assoc_freq;
531
Jouni Malinenfa201b62008-11-28 19:46:22 +0200532 return 0;
533}
534
535
Jouni Malinenb89883a2011-02-22 12:20:16 +0200536#ifdef CONFIG_P2P
537static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
538{
539 struct wpa_supplicant *wpa_s = eloop_ctx;
540 wpas_p2p_notif_pbc_overlap(wpa_s);
541}
542#endif /* CONFIG_P2P */
543
544
Jouni Malinen4b682902008-12-18 21:58:42 +0200545static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
546 struct wps_event_m2d *m2d)
547{
548 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
549 "dev_password_id=%d config_error=%d",
550 m2d->dev_password_id, m2d->config_error);
Jouni Malinen8bac4662009-09-13 20:53:32 +0300551 wpas_notify_wps_event_m2d(wpa_s, m2d);
Jouni Malinenb89883a2011-02-22 12:20:16 +0200552#ifdef CONFIG_P2P
553 if (wpa_s->parent && wpa_s->parent != wpa_s) {
554 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
555 "dev_password_id=%d config_error=%d",
556 m2d->dev_password_id, m2d->config_error);
557 }
558 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
559 /*
560 * Notify P2P from eloop timeout to avoid issues with the
561 * interface getting removed while processing a message.
562 */
563 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
564 NULL);
565 }
566#endif /* CONFIG_P2P */
Jouni Malinen4b682902008-12-18 21:58:42 +0200567}
568
569
Chao-Wen Yangc5cf0a12011-01-13 17:50:59 +0200570static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
571 "No Error", /* WPS_EI_NO_ERROR */
572 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
573 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
574};
575
Jouni Malinen469fc3a2008-12-19 22:19:41 +0200576static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
577 struct wps_event_fail *fail)
578{
Chao-Wen Yangc5cf0a12011-01-13 17:50:59 +0200579 if (fail->error_indication > 0 &&
580 fail->error_indication < NUM_WPS_EI_VALUES) {
581 wpa_msg(wpa_s, MSG_INFO,
582 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
583 fail->msg, fail->config_error, fail->error_indication,
584 wps_event_fail_reason[fail->error_indication]);
585 if (wpa_s->parent && wpa_s->parent != wpa_s)
586 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
587 "msg=%d config_error=%d reason=%d (%s)",
588 fail->msg, fail->config_error,
589 fail->error_indication,
590 wps_event_fail_reason[fail->error_indication]);
591 } else {
592 wpa_msg(wpa_s, MSG_INFO,
593 WPS_EVENT_FAIL "msg=%d config_error=%d",
Jouni Malinen545cc6a2010-10-14 20:52:31 +0300594 fail->msg, fail->config_error);
Chao-Wen Yangc5cf0a12011-01-13 17:50:59 +0200595 if (wpa_s->parent && wpa_s->parent != wpa_s)
596 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
597 "msg=%d config_error=%d",
598 fail->msg, fail->config_error);
599 }
Jouni Malinen469fc3a2008-12-19 22:19:41 +0200600 wpas_clear_wps(wpa_s);
Jouni Malinen8bac4662009-09-13 20:53:32 +0300601 wpas_notify_wps_event_fail(wpa_s, fail);
Jayant Sane37345522011-06-25 11:47:04 +0300602#ifdef CONFIG_P2P
603 wpas_p2p_wps_failed(wpa_s, fail);
604#endif /* CONFIG_P2P */
Jouni Malinen469fc3a2008-12-19 22:19:41 +0200605}
606
607
Sunil Duttec947ff2012-10-04 21:11:04 +0300608static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
609
610static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
611{
612 struct wpa_ssid *ssid;
Jouni Malinen318e7722012-12-21 20:11:26 +0200613 int changed = 0;
Sunil Duttec947ff2012-10-04 21:11:04 +0300614
615 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
616
617 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
618 if (ssid->disabled_for_connect && ssid->disabled) {
619 ssid->disabled_for_connect = 0;
620 ssid->disabled = 0;
621 wpas_notify_network_enabled_changed(wpa_s, ssid);
Jouni Malinen318e7722012-12-21 20:11:26 +0200622 changed++;
Sunil Duttec947ff2012-10-04 21:11:04 +0300623 }
624 }
Jouni Malinen318e7722012-12-21 20:11:26 +0200625
626 if (changed) {
627#ifndef CONFIG_NO_CONFIG_WRITE
628 if (wpa_s->conf->update_config &&
629 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
630 wpa_printf(MSG_DEBUG, "WPS: Failed to update "
631 "configuration");
632 }
633#endif /* CONFIG_NO_CONFIG_WRITE */
634 }
Sunil Duttec947ff2012-10-04 21:11:04 +0300635}
636
637
638static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
639{
640 struct wpa_supplicant *wpa_s = eloop_ctx;
641 /* Enable the networks disabled during wpas_wps_reassoc */
642 wpas_wps_reenable_networks(wpa_s);
643}
644
645
Jouni Malinenad5302a2008-12-19 22:34:18 +0200646static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
647{
648 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
Jouni Malinena6099152009-01-23 13:10:58 +0200649 wpa_s->wps_success = 1;
Jouni Malinen8bac4662009-09-13 20:53:32 +0300650 wpas_notify_wps_event_success(wpa_s);
Jouni Malinenf3e907a2013-05-15 17:33:50 +0300651 if (wpa_s->current_ssid)
652 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
653 wpa_s->extra_blacklist_count = 0;
Sunil Duttec947ff2012-10-04 21:11:04 +0300654
655 /*
656 * Enable the networks disabled during wpas_wps_reassoc after 10
657 * seconds. The 10 seconds timer is to allow the data connection to be
658 * formed before allowing other networks to be selected.
659 */
660 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
661 NULL);
662
Jouni Malinenb22128e2010-07-18 14:30:25 -0700663#ifdef CONFIG_P2P
664 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
665#endif /* CONFIG_P2P */
Jouni Malinenad5302a2008-12-19 22:34:18 +0200666}
667
668
Jouni Malinenb78bc3a2009-11-15 12:07:27 +0200669static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
670 struct wps_event_er_ap *ap)
671{
672 char uuid_str[100];
Jouni Malinened459472009-11-26 11:54:37 +0200673 char dev_type[WPS_DEV_TYPE_BUFSIZE];
Jouni Malinene694b342009-11-21 13:34:23 +0200674
Jouni Malinenb78bc3a2009-11-15 12:07:27 +0200675 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
Jouni Malinene694b342009-11-21 13:34:23 +0200676 if (ap->pri_dev_type)
Jouni Malinened459472009-11-26 11:54:37 +0200677 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
678 sizeof(dev_type));
Jouni Malinene694b342009-11-21 13:34:23 +0200679 else
680 dev_type[0] = '\0';
681
682 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
683 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
684 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
Jouni Malinenb78bc3a2009-11-15 12:07:27 +0200685 ap->friendly_name ? ap->friendly_name : "",
686 ap->manufacturer ? ap->manufacturer : "",
687 ap->model_description ? ap->model_description : "",
688 ap->model_name ? ap->model_name : "",
689 ap->manufacturer_url ? ap->manufacturer_url : "",
690 ap->model_url ? ap->model_url : "");
691}
692
693
694static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
695 struct wps_event_er_ap *ap)
696{
697 char uuid_str[100];
698 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
699 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
700}
701
702
703static void wpa_supplicant_wps_event_er_enrollee_add(
704 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
705{
706 char uuid_str[100];
Jouni Malinened459472009-11-26 11:54:37 +0200707 char dev_type[WPS_DEV_TYPE_BUFSIZE];
Jouni Malinenb78bc3a2009-11-15 12:07:27 +0200708
709 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
710 if (enrollee->pri_dev_type)
Jouni Malinened459472009-11-26 11:54:37 +0200711 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
712 sizeof(dev_type));
Jouni Malinenb78bc3a2009-11-15 12:07:27 +0200713 else
714 dev_type[0] = '\0';
715
716 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
717 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
718 "|%s|%s|%s|%s|%s|",
719 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
720 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
721 enrollee->dev_name ? enrollee->dev_name : "",
722 enrollee->manufacturer ? enrollee->manufacturer : "",
723 enrollee->model_name ? enrollee->model_name : "",
724 enrollee->model_number ? enrollee->model_number : "",
725 enrollee->serial_number ? enrollee->serial_number : "");
726}
727
728
729static void wpa_supplicant_wps_event_er_enrollee_remove(
730 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
731{
732 char uuid_str[100];
733 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
734 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
735 uuid_str, MAC2STR(enrollee->mac_addr));
736}
737
738
Jouni Malinen15dbf122010-05-27 15:24:45 +0300739static void wpa_supplicant_wps_event_er_ap_settings(
740 struct wpa_supplicant *wpa_s,
741 struct wps_event_er_ap_settings *ap_settings)
742{
743 char uuid_str[100];
744 char key_str[65];
745 const struct wps_credential *cred = ap_settings->cred;
746
747 key_str[0] = '\0';
748 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
749 if (cred->key_len >= 8 && cred->key_len <= 64) {
750 os_memcpy(key_str, cred->key, cred->key_len);
751 key_str[cred->key_len] = '\0';
752 }
753 }
754
755 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
756 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
757 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
758 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
759 "key=%s",
760 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
761 cred->auth_type, cred->encr_type, key_str);
762}
763
764
Jouni Malinen3e7533b2010-10-25 21:29:22 +0300765static void wpa_supplicant_wps_event_er_set_sel_reg(
766 struct wpa_supplicant *wpa_s,
767 struct wps_event_er_set_selected_registrar *ev)
768{
769 char uuid_str[100];
770
771 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
772 switch (ev->state) {
773 case WPS_ER_SET_SEL_REG_START:
774 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
775 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
776 "sel_reg_config_methods=0x%x",
777 uuid_str, ev->sel_reg, ev->dev_passwd_id,
778 ev->sel_reg_config_methods);
779 break;
780 case WPS_ER_SET_SEL_REG_DONE:
781 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
782 "uuid=%s state=DONE", uuid_str);
783 break;
784 case WPS_ER_SET_SEL_REG_FAILED:
785 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
786 "uuid=%s state=FAILED", uuid_str);
787 break;
788 }
789}
790
791
Jouni Malinen4b682902008-12-18 21:58:42 +0200792static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
793 union wps_event_data *data)
794{
795 struct wpa_supplicant *wpa_s = ctx;
796 switch (event) {
797 case WPS_EV_M2D:
798 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
799 break;
Jouni Malinen469fc3a2008-12-19 22:19:41 +0200800 case WPS_EV_FAIL:
801 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
802 break;
Jouni Malinenad5302a2008-12-19 22:34:18 +0200803 case WPS_EV_SUCCESS:
804 wpa_supplicant_wps_event_success(wpa_s);
805 break;
Jouni Malinen3b2cf802009-01-23 21:57:43 +0200806 case WPS_EV_PWD_AUTH_FAIL:
Jouni Malinen70d84f12010-11-17 16:46:55 +0200807#ifdef CONFIG_AP
808 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
809 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
810#endif /* CONFIG_AP */
Jouni Malinen3b2cf802009-01-23 21:57:43 +0200811 break;
Oleg Kravtsov63330c62009-11-01 21:26:13 +0200812 case WPS_EV_PBC_OVERLAP:
813 break;
814 case WPS_EV_PBC_TIMEOUT:
815 break;
Jouni Malinenb78bc3a2009-11-15 12:07:27 +0200816 case WPS_EV_ER_AP_ADD:
817 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
818 break;
819 case WPS_EV_ER_AP_REMOVE:
820 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
821 break;
822 case WPS_EV_ER_ENROLLEE_ADD:
823 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
824 &data->enrollee);
825 break;
826 case WPS_EV_ER_ENROLLEE_REMOVE:
827 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
828 &data->enrollee);
829 break;
Jouni Malinen15dbf122010-05-27 15:24:45 +0300830 case WPS_EV_ER_AP_SETTINGS:
831 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
832 &data->ap_settings);
833 break;
Jouni Malinen3e7533b2010-10-25 21:29:22 +0300834 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
835 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
836 &data->set_sel_reg);
837 break;
Jouni Malinen32cdcf12012-01-30 17:31:06 +0200838 case WPS_EV_AP_PIN_SUCCESS:
839 break;
Jouni Malinen4b682902008-12-18 21:58:42 +0200840 }
841}
842
843
Jouni Malinenf90c86d2009-01-03 19:50:49 +0200844enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
Jouni Malinenfa201b62008-11-28 19:46:22 +0200845{
Jouni Malinenb01c18a2008-11-29 13:38:03 +0200846 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
847 eap_is_wps_pin_enrollee(&ssid->eap))
848 return WPS_REQ_ENROLLEE;
849 else
850 return WPS_REQ_REGISTRAR;
Jouni Malinenfa201b62008-11-28 19:46:22 +0200851}
Jouni Malinen116654c2008-11-28 20:32:13 +0200852
853
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200854static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
855{
856 int id;
Jouni Malinen20a0b032011-06-27 19:02:24 +0300857 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
858
859 prev_current = wpa_s->current_ssid;
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200860
Sunil Duttec947ff2012-10-04 21:11:04 +0300861 /* Enable the networks disabled during wpas_wps_reassoc */
862 wpas_wps_reenable_networks(wpa_s);
863
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200864 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
865
866 /* Remove any existing WPS network from configuration */
867 ssid = wpa_s->conf->ssid;
868 while (ssid) {
Jouni Malinenf0477202008-12-18 01:06:06 +0200869 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
Jouni Malinen8bac4662009-09-13 20:53:32 +0300870 if (ssid == wpa_s->current_ssid) {
Junli Zhaoc7a67a72013-07-08 12:09:18 +0300871 wpa_supplicant_deauthenticate(
872 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
Jouni Malinen8bac4662009-09-13 20:53:32 +0300873 }
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200874 id = ssid->id;
Jouni Malinen8bac4662009-09-13 20:53:32 +0300875 remove_ssid = ssid;
Jouni Malinenf0477202008-12-18 01:06:06 +0200876 } else
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200877 id = -1;
878 ssid = ssid->next;
Jouni Malinen8bac4662009-09-13 20:53:32 +0300879 if (id >= 0) {
Jouni Malinen20a0b032011-06-27 19:02:24 +0300880 if (prev_current == remove_ssid) {
881 wpa_sm_set_config(wpa_s->wpa, NULL);
882 eapol_sm_notify_config(wpa_s->eapol, NULL,
883 NULL);
884 }
Jouni Malinen8bac4662009-09-13 20:53:32 +0300885 wpas_notify_network_removed(wpa_s, remove_ssid);
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200886 wpa_config_remove_network(wpa_s->conf, id);
Jouni Malinen8bac4662009-09-13 20:53:32 +0300887 }
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200888 }
Jouni Malinenf9f05262012-08-27 13:48:11 +0300889
890 wpas_wps_clear_ap_info(wpa_s);
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200891}
892
893
894static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
895{
896 struct wpa_supplicant *wpa_s = eloop_ctx;
Ardong Chen014732e2010-09-06 18:13:18 +0300897 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
898 "out");
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200899 wpas_clear_wps(wpa_s);
900}
901
902
903static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
904 int registrar, const u8 *bssid)
905{
906 struct wpa_ssid *ssid;
907
908 ssid = wpa_config_add_network(wpa_s->conf);
909 if (ssid == NULL)
910 return NULL;
Jouni Malinen8bac4662009-09-13 20:53:32 +0300911 wpas_notify_network_added(wpa_s, ssid);
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200912 wpa_config_set_network_defaults(ssid);
Jouni Malinen2ff99b32010-07-18 14:30:24 -0700913 ssid->temporary = 1;
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200914 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
915 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
916 wpa_config_set(ssid, "identity", registrar ?
917 "\"" WSC_ID_REGISTRAR "\"" :
918 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
Jouni Malinen8bac4662009-09-13 20:53:32 +0300919 wpas_notify_network_removed(wpa_s, ssid);
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200920 wpa_config_remove_network(wpa_s->conf, ssid->id);
921 return NULL;
922 }
923
924 if (bssid) {
Jouni Malinenb2c5a4a2010-07-18 14:30:24 -0700925#ifndef CONFIG_P2P
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200926 struct wpa_bss *bss;
Jouni Malinenf7e54362009-12-28 16:07:15 +0200927 int count = 0;
Jouni Malinenb2c5a4a2010-07-18 14:30:24 -0700928#endif /* CONFIG_P2P */
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200929
930 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
Jouni Malinen24c23d12008-12-20 22:55:02 +0200931 ssid->bssid_set = 1;
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200932
Jouni Malinenb2c5a4a2010-07-18 14:30:24 -0700933 /*
934 * Note: With P2P, the SSID may change at the time the WPS
935 * provisioning is started, so better not filter the AP based
936 * on the current SSID in the scan results.
937 */
938#ifndef CONFIG_P2P
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200939 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
940 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200941 continue;
942
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200943 os_free(ssid->ssid);
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200944 ssid->ssid = os_malloc(bss->ssid_len);
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200945 if (ssid->ssid == NULL)
946 break;
Jouni Malinen59f2caa2010-01-02 13:36:12 +0200947 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
948 ssid->ssid_len = bss->ssid_len;
Jouni Malinenf7e54362009-12-28 16:07:15 +0200949 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
950 "scan results",
951 ssid->ssid, ssid->ssid_len);
952 count++;
953 }
954
955 if (count > 1) {
956 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
957 "for the AP; use wildcard");
958 os_free(ssid->ssid);
959 ssid->ssid = NULL;
960 ssid->ssid_len = 0;
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200961 }
Jouni Malinenb2c5a4a2010-07-18 14:30:24 -0700962#endif /* CONFIG_P2P */
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200963 }
964
965 return ssid;
966}
967
968
Jouni Malinen170f5662013-05-15 16:46:45 +0300969static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
970 struct wpa_ssid *selected)
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200971{
972 struct wpa_ssid *ssid;
973
Jouni Malinend9d87c32011-12-11 18:30:47 +0200974 if (wpa_s->current_ssid)
975 wpa_supplicant_deauthenticate(
976 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
977
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200978 /* Mark all other networks disabled and trigger reassociation */
979 ssid = wpa_s->conf->ssid;
980 while (ssid) {
Jouni Malinen8bac4662009-09-13 20:53:32 +0300981 int was_disabled = ssid->disabled;
Sunil Duttec947ff2012-10-04 21:11:04 +0300982 ssid->disabled_for_connect = 0;
Jayant Sanec2762e42011-06-23 21:25:13 +0300983 /*
984 * In case the network object corresponds to a persistent group
985 * then do not send out network disabled signal. In addition,
986 * do not change disabled status of persistent network objects
987 * from 2 to 1 should we connect to another network.
988 */
989 if (was_disabled != 2) {
990 ssid->disabled = ssid != selected;
Sunil Duttec947ff2012-10-04 21:11:04 +0300991 if (was_disabled != ssid->disabled) {
992 if (ssid->disabled)
993 ssid->disabled_for_connect = 1;
Jayant Sanec2762e42011-06-23 21:25:13 +0300994 wpas_notify_network_enabled_changed(wpa_s,
995 ssid);
Sunil Duttec947ff2012-10-04 21:11:04 +0300996 }
Jayant Sanec2762e42011-06-23 21:25:13 +0300997 }
Jouni Malinenfcc60db2008-11-29 20:59:45 +0200998 ssid = ssid->next;
999 }
Jouni Malinen170f5662013-05-15 16:46:45 +03001000}
1001
1002
1003static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
1004 struct wpa_ssid *selected, const u8 *bssid)
1005{
1006 struct wpa_bss *bss;
1007
1008 wpa_s->after_wps = 0;
1009 wpa_s->known_wps_freq = 0;
1010 if (bssid) {
1011 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1012 if (bss && bss->freq > 0) {
1013 wpa_s->known_wps_freq = 1;
1014 wpa_s->wps_freq = bss->freq;
1015 }
1016 }
1017
1018 wpas_wps_temp_disable(wpa_s, selected);
1019
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001020 wpa_s->disconnected = 0;
1021 wpa_s->reassociate = 1;
Jouni Malinena6099152009-01-23 13:10:58 +02001022 wpa_s->scan_runs = 0;
Jouni Malinen0b7a25c2011-11-28 18:36:36 +02001023 wpa_s->normal_scans = 0;
Jouni Malinena6099152009-01-23 13:10:58 +02001024 wpa_s->wps_success = 0;
1025 wpa_s->blacklist_cleared = 0;
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001026 wpa_supplicant_req_scan(wpa_s, 0, 0);
1027}
1028
1029
Jouni Malinen9fa243b2010-07-18 14:30:24 -07001030int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1031 int p2p_group)
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001032{
1033 struct wpa_ssid *ssid;
1034 wpas_clear_wps(wpa_s);
1035 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
1036 if (ssid == NULL)
1037 return -1;
Jouni Malinen9fa243b2010-07-18 14:30:24 -07001038 ssid->temporary = 1;
1039 ssid->p2p_group = p2p_group;
Jouni Malinen812bf562010-09-09 07:20:28 -07001040#ifdef CONFIG_P2P
Jouni Malinene9a7ae42010-08-05 09:15:11 -07001041 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1042 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1043 if (ssid->ssid) {
1044 ssid->ssid_len = wpa_s->go_params->ssid_len;
1045 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1046 ssid->ssid_len);
1047 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1048 "SSID", ssid->ssid, ssid->ssid_len);
1049 }
1050 }
Jouni Malinen812bf562010-09-09 07:20:28 -07001051#endif /* CONFIG_P2P */
Jouni Malinen9c75e9f2013-01-01 20:30:17 +02001052 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
1053 return -1;
Jouni Malinen42f50262010-07-22 10:24:23 -07001054 if (wpa_s->wps_fragment_size)
1055 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001056 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1057 wpa_s, NULL);
Jouni Malinen1e7fb4f2011-12-31 13:17:20 +02001058 wpas_wps_reassoc(wpa_s, ssid, bssid);
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001059 return 0;
1060}
1061
1062
1063int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
Jouni Malinen3c5126a2010-06-26 22:49:41 -07001064 const char *pin, int p2p_group, u16 dev_pw_id)
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001065{
1066 struct wpa_ssid *ssid;
Masashi Honma46bdb832009-02-26 21:57:38 +02001067 char val[128];
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001068 unsigned int rpin = 0;
1069
1070 wpas_clear_wps(wpa_s);
1071 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
1072 if (ssid == NULL)
1073 return -1;
Jouni Malinen9fa243b2010-07-18 14:30:24 -07001074 ssid->temporary = 1;
1075 ssid->p2p_group = p2p_group;
Jouni Malinen812bf562010-09-09 07:20:28 -07001076#ifdef CONFIG_P2P
Jouni Malinene9a7ae42010-08-05 09:15:11 -07001077 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1078 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1079 if (ssid->ssid) {
1080 ssid->ssid_len = wpa_s->go_params->ssid_len;
1081 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1082 ssid->ssid_len);
1083 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1084 "SSID", ssid->ssid, ssid->ssid_len);
1085 }
1086 }
Jouni Malinen812bf562010-09-09 07:20:28 -07001087#endif /* CONFIG_P2P */
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001088 if (pin)
Jouni Malinen3c5126a2010-06-26 22:49:41 -07001089 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
1090 pin, dev_pw_id);
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001091 else {
1092 rpin = wps_generate_pin();
Jouni Malinen3c5126a2010-06-26 22:49:41 -07001093 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
1094 rpin, dev_pw_id);
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001095 }
Jouni Malinen9c75e9f2013-01-01 20:30:17 +02001096 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1097 return -1;
Jouni Malinen42f50262010-07-22 10:24:23 -07001098 if (wpa_s->wps_fragment_size)
1099 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001100 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1101 wpa_s, NULL);
Jouni Malinenf9f05262012-08-27 13:48:11 +03001102 wpa_s->wps_ap_iter = 1;
Jouni Malinen1e7fb4f2011-12-31 13:17:20 +02001103 wpas_wps_reassoc(wpa_s, ssid, bssid);
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001104 return rpin;
1105}
1106
1107
Ardong Chen2f9929f2010-09-06 20:51:06 +03001108/* Cancel the wps pbc/pin requests */
1109int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1110{
1111#ifdef CONFIG_AP
1112 if (wpa_s->ap_iface) {
1113 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1114 return wpa_supplicant_ap_wps_cancel(wpa_s);
1115 }
1116#endif /* CONFIG_AP */
1117
Jouni Malinen476dea22012-06-06 22:07:11 +03001118 if (wpa_s->wpa_state == WPA_SCANNING ||
1119 wpa_s->wpa_state == WPA_DISCONNECTED) {
Ardong Chen2f9929f2010-09-06 20:51:06 +03001120 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1121 wpa_supplicant_cancel_scan(wpa_s);
1122 wpas_clear_wps(wpa_s);
1123 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1124 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1125 "deauthenticate");
1126 wpa_supplicant_deauthenticate(wpa_s,
1127 WLAN_REASON_DEAUTH_LEAVING);
1128 wpas_clear_wps(wpa_s);
Sunil Duttec947ff2012-10-04 21:11:04 +03001129 } else {
1130 wpas_wps_reenable_networks(wpa_s);
Jouni Malinenf9f05262012-08-27 13:48:11 +03001131 wpas_wps_clear_ap_info(wpa_s);
Sunil Duttec947ff2012-10-04 21:11:04 +03001132 }
Ardong Chen2f9929f2010-09-06 20:51:06 +03001133
1134 return 0;
1135}
1136
1137
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001138int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
Jouni Malinen52eb2932009-09-06 13:58:15 +03001139 const char *pin, struct wps_new_ap_settings *settings)
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001140{
1141 struct wpa_ssid *ssid;
Jouni Malinen52eb2932009-09-06 13:58:15 +03001142 char val[200];
1143 char *pos, *end;
1144 int res;
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001145
1146 if (!pin)
1147 return -1;
1148 wpas_clear_wps(wpa_s);
1149 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1150 if (ssid == NULL)
1151 return -1;
Jouni Malinen2ff99b32010-07-18 14:30:24 -07001152 ssid->temporary = 1;
Jouni Malinen52eb2932009-09-06 13:58:15 +03001153 pos = val;
1154 end = pos + sizeof(val);
1155 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1156 if (res < 0 || res >= end - pos)
1157 return -1;
1158 pos += res;
1159 if (settings) {
1160 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1161 "new_encr=%s new_key=%s",
1162 settings->ssid_hex, settings->auth,
1163 settings->encr, settings->key_hex);
1164 if (res < 0 || res >= end - pos)
1165 return -1;
1166 pos += res;
1167 }
1168 res = os_snprintf(pos, end - pos, "\"");
1169 if (res < 0 || res >= end - pos)
1170 return -1;
Jouni Malinen9c75e9f2013-01-01 20:30:17 +02001171 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1172 return -1;
Jouni Malinen42f50262010-07-22 10:24:23 -07001173 if (wpa_s->wps_fragment_size)
1174 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001175 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1176 wpa_s, NULL);
Jouni Malinen1e7fb4f2011-12-31 13:17:20 +02001177 wpas_wps_reassoc(wpa_s, ssid, bssid);
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001178 return 0;
1179}
1180
1181
Jouni Malinenc5adf522009-01-03 20:18:35 +02001182static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1183 size_t psk_len)
1184{
1185 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1186 "STA " MACSTR, MAC2STR(mac_addr));
1187 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1188
1189 /* TODO */
1190
1191 return 0;
1192}
1193
1194
1195static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1196 const struct wps_device_data *dev)
1197{
1198 char uuid[40], txt[400];
1199 int len;
Jouni Malinen96750ea2009-11-26 11:39:29 +02001200 char devtype[WPS_DEV_TYPE_BUFSIZE];
Jouni Malinenc5adf522009-01-03 20:18:35 +02001201 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1202 return;
1203 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1204 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
Jouni Malinen96750ea2009-11-26 11:39:29 +02001205 " [%s|%s|%s|%s|%s|%s]",
Jouni Malinenc5adf522009-01-03 20:18:35 +02001206 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1207 dev->manufacturer, dev->model_name,
1208 dev->model_number, dev->serial_number,
Jouni Malinen96750ea2009-11-26 11:39:29 +02001209 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1210 sizeof(devtype)));
Jouni Malinenc5adf522009-01-03 20:18:35 +02001211 if (len > 0 && len < (int) sizeof(txt))
1212 wpa_printf(MSG_INFO, "%s", txt);
1213}
1214
1215
Jouni Malinen72df2f52009-11-13 22:07:11 +02001216static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1217 u16 sel_reg_config_methods)
1218{
1219#ifdef CONFIG_WPS_ER
1220 struct wpa_supplicant *wpa_s = ctx;
1221
1222 if (wpa_s->wps_er == NULL)
1223 return;
Jouni Malinenad474112010-07-18 22:53:15 -07001224 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1225 "dev_password_id=%u sel_reg_config_methods=0x%x",
1226 sel_reg, dev_passwd_id, sel_reg_config_methods);
Jouni Malinen72df2f52009-11-13 22:07:11 +02001227 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1228 sel_reg_config_methods);
1229#endif /* CONFIG_WPS_ER */
1230}
1231
1232
Jouni Malinen092acb52010-10-16 12:57:47 +03001233static u16 wps_fix_config_methods(u16 config_methods)
1234{
1235#ifdef CONFIG_WPS2
1236 if ((config_methods &
1237 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1238 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1239 wpa_printf(MSG_INFO, "WPS: Converting display to "
1240 "virtual_display for WPS 2.0 compliance");
1241 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1242 }
1243 if ((config_methods &
1244 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1245 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1246 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1247 "virtual_push_button for WPS 2.0 compliance");
1248 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1249 }
1250#endif /* CONFIG_WPS2 */
1251
1252 return config_methods;
1253}
1254
1255
Jouni Malinen85a821d2011-03-17 18:07:00 +02001256static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1257 struct wps_context *wps)
1258{
1259 wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1260 if (is_nil_uuid(wpa_s->conf->uuid)) {
1261 struct wpa_supplicant *first;
1262 first = wpa_s->global->ifaces;
1263 while (first && first->next)
1264 first = first->next;
1265 if (first && first != wpa_s) {
Ben Greear157cdad2012-05-10 10:56:51 +03001266 if (wps != wpa_s->global->ifaces->wps)
1267 os_memcpy(wps->uuid,
1268 wpa_s->global->ifaces->wps->uuid,
1269 WPS_UUID_LEN);
Jouni Malinen85a821d2011-03-17 18:07:00 +02001270 wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1271 "interface", wps->uuid, WPS_UUID_LEN);
1272 } else {
1273 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1274 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1275 "address", wps->uuid, WPS_UUID_LEN);
1276 }
1277 } else {
1278 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1279 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1280 wps->uuid, WPS_UUID_LEN);
1281 }
1282}
1283
1284
Anirban Sirkhell71dd3b72012-04-04 00:08:57 +03001285static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1286 struct wps_context *wps)
1287{
1288 wpabuf_free(wps->dev.vendor_ext_m1);
1289 wps->dev.vendor_ext_m1 = NULL;
1290
1291 if (wpa_s->conf->wps_vendor_ext_m1) {
1292 wps->dev.vendor_ext_m1 =
1293 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1294 if (!wps->dev.vendor_ext_m1) {
1295 wpa_printf(MSG_ERROR, "WPS: Cannot "
1296 "allocate memory for vendor_ext_m1");
1297 }
1298 }
1299}
1300
1301
Jouni Malinen116654c2008-11-28 20:32:13 +02001302int wpas_wps_init(struct wpa_supplicant *wpa_s)
1303{
1304 struct wps_context *wps;
Jouni Malinenc5adf522009-01-03 20:18:35 +02001305 struct wps_registrar_config rcfg;
Bharat Chakravarty6fb6d842011-08-31 17:53:55 +03001306 struct hostapd_hw_modes *modes;
Christian Lamparter6bf731e2011-10-23 11:58:54 +03001307 u16 m;
Jouni Malinen116654c2008-11-28 20:32:13 +02001308
1309 wps = os_zalloc(sizeof(*wps));
1310 if (wps == NULL)
1311 return -1;
1312
1313 wps->cred_cb = wpa_supplicant_wps_cred;
Jouni Malinen4b682902008-12-18 21:58:42 +02001314 wps->event_cb = wpa_supplicant_wps_event;
Jouni Malinen116654c2008-11-28 20:32:13 +02001315 wps->cb_ctx = wpa_s;
1316
Jouni Malinen3c0b7aa2008-12-13 17:20:46 +02001317 wps->dev.device_name = wpa_s->conf->device_name;
1318 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1319 wps->dev.model_name = wpa_s->conf->model_name;
1320 wps->dev.model_number = wpa_s->conf->model_number;
1321 wps->dev.serial_number = wpa_s->conf->serial_number;
Jouni Malinenc0e4dd92009-12-21 15:59:25 +02001322 wps->config_methods =
1323 wps_config_methods_str2bin(wpa_s->conf->config_methods);
Jouni Malinen979b9882010-07-17 20:30:49 -07001324 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1325 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1326 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1327 "methods are not allowed at the same time");
1328 os_free(wps);
1329 return -1;
1330 }
Jouni Malinen092acb52010-10-16 12:57:47 +03001331 wps->config_methods = wps_fix_config_methods(wps->config_methods);
Bharat Chakravartya9355fa2011-09-01 15:24:45 +03001332 wps->dev.config_methods = wps->config_methods;
Johannes Berg2f646b62011-03-17 18:50:22 +02001333 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1334 WPS_DEV_TYPE_LEN);
Jean-Michel Bachota9e86bf2011-03-17 11:09:49 +02001335
Johannes Berg2f646b62011-03-17 18:50:22 +02001336 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1337 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1338 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
Jean-Michel Bachota9e86bf2011-03-17 11:09:49 +02001339
Anirban Sirkhell71dd3b72012-04-04 00:08:57 +03001340 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1341
Jouni Malinen3c0b7aa2008-12-13 17:20:46 +02001342 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
Christian Lamparter6bf731e2011-10-23 11:58:54 +03001343 modes = wpa_s->hw.modes;
Bharat Chakravarty6fb6d842011-08-31 17:53:55 +03001344 if (modes) {
Christian Lamparter6bf731e2011-10-23 11:58:54 +03001345 for (m = 0; m < wpa_s->hw.num_modes; m++) {
Bharat Chakravarty6fb6d842011-08-31 17:53:55 +03001346 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1347 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1348 wps->dev.rf_bands |= WPS_RF_24GHZ;
1349 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1350 wps->dev.rf_bands |= WPS_RF_50GHZ;
1351 }
Bharat Chakravarty6fb6d842011-08-31 17:53:55 +03001352 }
1353 if (wps->dev.rf_bands == 0) {
1354 /*
1355 * Default to claiming support for both bands if the driver
1356 * does not provide support for fetching supported bands.
1357 */
1358 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1359 }
Jouni Malinen398cfbf2008-11-28 20:44:47 +02001360 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
Jouni Malinen85a821d2011-03-17 18:07:00 +02001361 wpas_wps_set_uuid(wpa_s, wps);
Jouni Malinen116654c2008-11-28 20:32:13 +02001362
Jouni Malinenc5adf522009-01-03 20:18:35 +02001363 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1364 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1365
1366 os_memset(&rcfg, 0, sizeof(rcfg));
1367 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1368 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
Jouni Malinen72df2f52009-11-13 22:07:11 +02001369 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
Jouni Malinenc5adf522009-01-03 20:18:35 +02001370 rcfg.cb_ctx = wpa_s;
1371
1372 wps->registrar = wps_registrar_init(wps, &rcfg);
1373 if (wps->registrar == NULL) {
1374 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1375 os_free(wps);
1376 return -1;
1377 }
1378
Jouni Malinen116654c2008-11-28 20:32:13 +02001379 wpa_s->wps = wps;
1380
1381 return 0;
1382}
1383
1384
1385void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1386{
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001387 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
Sunil Duttec947ff2012-10-04 21:11:04 +03001388 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
Jouni Malinenf9f05262012-08-27 13:48:11 +03001389 wpas_wps_clear_ap_info(wpa_s);
Jouni Malinenfcc60db2008-11-29 20:59:45 +02001390
Jouni Malinen116654c2008-11-28 20:32:13 +02001391 if (wpa_s->wps == NULL)
1392 return;
1393
Jouni Malinena6b63072009-11-15 22:52:17 +02001394#ifdef CONFIG_WPS_ER
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001395 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
Jouni Malinena6b63072009-11-15 22:52:17 +02001396 wpa_s->wps_er = NULL;
1397#endif /* CONFIG_WPS_ER */
1398
Jouni Malinenc5adf522009-01-03 20:18:35 +02001399 wps_registrar_deinit(wpa_s->wps->registrar);
Masashi Honma46bdb832009-02-26 21:57:38 +02001400 wpabuf_free(wpa_s->wps->dh_pubkey);
1401 wpabuf_free(wpa_s->wps->dh_privkey);
Anirban Sirkhell71dd3b72012-04-04 00:08:57 +03001402 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
Jouni Malinen116654c2008-11-28 20:32:13 +02001403 os_free(wpa_s->wps->network_key);
1404 os_free(wpa_s->wps);
1405 wpa_s->wps = NULL;
1406}
Jouni Malinen351f09a2008-11-29 22:06:34 +02001407
1408
Jouni Malinena6099152009-01-23 13:10:58 +02001409int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
Jouni Malinen620c7832012-09-02 19:56:57 +03001410 struct wpa_ssid *ssid, struct wpa_bss *bss)
Jouni Malinen351f09a2008-11-29 22:06:34 +02001411{
1412 struct wpabuf *wps_ie;
1413
1414 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1415 return -1;
1416
Jouni Malinen620c7832012-09-02 19:56:57 +03001417 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
Jouni Malinen351f09a2008-11-29 22:06:34 +02001418 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1419 if (!wps_ie) {
1420 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1421 return 0;
1422 }
1423
1424 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1425 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1426 "without active PBC Registrar");
1427 wpabuf_free(wps_ie);
1428 return 0;
1429 }
1430
1431 /* TODO: overlap detection */
1432 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1433 "(Active PBC)");
1434 wpabuf_free(wps_ie);
1435 return 1;
1436 }
1437
1438 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1439 if (!wps_ie) {
1440 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1441 return 0;
1442 }
1443
Jouni Malinena6099152009-01-23 13:10:58 +02001444 /*
Jouni Malinen31fcea92009-12-12 16:40:10 +02001445 * Start with WPS APs that advertise our address as an
1446 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1447 * allow any WPS AP after couple of scans since some APs do not
1448 * set Selected Registrar attribute properly when using
1449 * external Registrar.
Jouni Malinena6099152009-01-23 13:10:58 +02001450 */
Jouni Malinen31fcea92009-12-12 16:40:10 +02001451 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
Jouni Malinena6099152009-01-23 13:10:58 +02001452 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1453 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1454 "without active PIN Registrar");
1455 wpabuf_free(wps_ie);
1456 return 0;
1457 }
1458 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1459 } else {
1460 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
Jouni Malinen31fcea92009-12-12 16:40:10 +02001461 "(Authorized MAC or Active PIN)");
Jouni Malinen351f09a2008-11-29 22:06:34 +02001462 }
Jouni Malinen351f09a2008-11-29 22:06:34 +02001463 wpabuf_free(wps_ie);
1464 return 1;
1465 }
1466
1467 if (wps_ie) {
1468 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1469 wpabuf_free(wps_ie);
1470 return 1;
1471 }
1472
1473 return -1;
1474}
1475
1476
Jouni Malinena6099152009-01-23 13:10:58 +02001477int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1478 struct wpa_ssid *ssid,
Jouni Malinen620c7832012-09-02 19:56:57 +03001479 struct wpa_bss *bss)
Jouni Malinen351f09a2008-11-29 22:06:34 +02001480{
1481 struct wpabuf *wps_ie = NULL;
1482 int ret = 0;
1483
1484 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
Jouni Malinen620c7832012-09-02 19:56:57 +03001485 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
Jouni Malinen351f09a2008-11-29 22:06:34 +02001486 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1487 /* allow wildcard SSID for WPS PBC */
1488 ret = 1;
1489 }
1490 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
Jouni Malinen620c7832012-09-02 19:56:57 +03001491 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
Jouni Malinena6099152009-01-23 13:10:58 +02001492 if (wps_ie &&
Jouni Malinen31fcea92009-12-12 16:40:10 +02001493 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
Jouni Malinena6099152009-01-23 13:10:58 +02001494 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
Jouni Malinen351f09a2008-11-29 22:06:34 +02001495 /* allow wildcard SSID for WPS PIN */
1496 ret = 1;
1497 }
1498 }
1499
Jouni Malinen24c23d12008-12-20 22:55:02 +02001500 if (!ret && ssid->bssid_set &&
1501 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1502 /* allow wildcard SSID due to hardcoded BSSID match */
1503 ret = 1;
1504 }
1505
Jouni Malinen54f489b2010-05-26 17:16:14 +03001506#ifdef CONFIG_WPS_STRICT
1507 if (wps_ie) {
1508 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
Jouni Malinenff28cca2010-09-20 14:54:22 -07001509 0, bss->bssid) < 0)
Jouni Malinen54f489b2010-05-26 17:16:14 +03001510 ret = 0;
1511 if (bss->beacon_ie_len) {
1512 struct wpabuf *bcn_wps;
Jouni Malinen620c7832012-09-02 19:56:57 +03001513 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
Jouni Malinen54f489b2010-05-26 17:16:14 +03001514 bss, WPS_IE_VENDOR_TYPE);
1515 if (bcn_wps == NULL) {
1516 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1517 "missing from AP Beacon");
1518 ret = 0;
1519 } else {
1520 if (wps_validate_beacon(wps_ie) < 0)
1521 ret = 0;
1522 wpabuf_free(bcn_wps);
1523 }
1524 }
1525 }
1526#endif /* CONFIG_WPS_STRICT */
1527
Jouni Malinen351f09a2008-11-29 22:06:34 +02001528 wpabuf_free(wps_ie);
1529
1530 return ret;
1531}
1532
1533
1534int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001535 struct wpa_bss *selected, struct wpa_ssid *ssid)
Jouni Malinen351f09a2008-11-29 22:06:34 +02001536{
1537 const u8 *sel_uuid, *uuid;
Jouni Malinen351f09a2008-11-29 22:06:34 +02001538 struct wpabuf *wps_ie;
1539 int ret = 0;
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001540 struct wpa_bss *bss;
Jouni Malinen351f09a2008-11-29 22:06:34 +02001541
1542 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1543 return 0;
1544
Jouni Malinen96471202010-09-20 15:08:52 -07001545 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1546 "present in scan results; selected BSSID " MACSTR,
1547 MAC2STR(selected->bssid));
1548
Jouni Malinen351f09a2008-11-29 22:06:34 +02001549 /* Make sure that only one AP is in active PBC mode */
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001550 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
Jouni Malinen96471202010-09-20 15:08:52 -07001551 if (wps_ie) {
Jouni Malinen351f09a2008-11-29 22:06:34 +02001552 sel_uuid = wps_get_uuid_e(wps_ie);
Jouni Malinen96471202010-09-20 15:08:52 -07001553 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1554 sel_uuid, UUID_LEN);
1555 } else {
1556 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1557 "WPS IE?!");
Jouni Malinen351f09a2008-11-29 22:06:34 +02001558 sel_uuid = NULL;
Jouni Malinen96471202010-09-20 15:08:52 -07001559 }
Jouni Malinen351f09a2008-11-29 22:06:34 +02001560
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001561 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
Jouni Malinen351f09a2008-11-29 22:06:34 +02001562 struct wpabuf *ie;
1563 if (bss == selected)
1564 continue;
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001565 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
Jouni Malinen351f09a2008-11-29 22:06:34 +02001566 if (!ie)
1567 continue;
1568 if (!wps_is_selected_pbc_registrar(ie)) {
1569 wpabuf_free(ie);
1570 continue;
1571 }
Jouni Malinen96471202010-09-20 15:08:52 -07001572 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1573 MACSTR, MAC2STR(bss->bssid));
Jouni Malinen351f09a2008-11-29 22:06:34 +02001574 uuid = wps_get_uuid_e(ie);
Jouni Malinen96471202010-09-20 15:08:52 -07001575 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1576 uuid, UUID_LEN);
Jouni Malinen44cd4302008-12-21 17:28:01 +02001577 if (sel_uuid == NULL || uuid == NULL ||
Jouni Malinen96471202010-09-20 15:08:52 -07001578 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
Jouni Malinen351f09a2008-11-29 22:06:34 +02001579 ret = 1; /* PBC overlap */
Jouni Malinen96471202010-09-20 15:08:52 -07001580 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1581 MACSTR " and " MACSTR,
1582 MAC2STR(selected->bssid),
1583 MAC2STR(bss->bssid));
Jouni Malinen351f09a2008-11-29 22:06:34 +02001584 wpabuf_free(ie);
1585 break;
1586 }
1587
1588 /* TODO: verify that this is reasonable dual-band situation */
Jouni Malinen484957a2008-12-15 19:50:53 +02001589
1590 wpabuf_free(ie);
Jouni Malinen351f09a2008-11-29 22:06:34 +02001591 }
1592
1593 wpabuf_free(wps_ie);
1594
1595 return ret;
1596}
Jouni Malinena524f052008-12-15 20:09:57 +02001597
1598
1599void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1600{
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001601 struct wpa_bss *bss;
Jouni Malinen6c6ad812011-01-05 11:49:03 +02001602 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
Jouni Malinena524f052008-12-15 20:09:57 +02001603
1604 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1605 return;
1606
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001607 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
Jouni Malinena524f052008-12-15 20:09:57 +02001608 struct wpabuf *ie;
Jouni Malinen6fa81a32010-01-02 16:16:02 +02001609 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
Jouni Malinena524f052008-12-15 20:09:57 +02001610 if (!ie)
1611 continue;
1612 if (wps_is_selected_pbc_registrar(ie))
Jouni Malinen6c6ad812011-01-05 11:49:03 +02001613 pbc++;
Jouni Malinen31fcea92009-12-12 16:40:10 +02001614 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
Jouni Malinen6c6ad812011-01-05 11:49:03 +02001615 auth++;
Jouni Malinena524f052008-12-15 20:09:57 +02001616 else if (wps_is_selected_pin_registrar(ie))
Jouni Malinen6c6ad812011-01-05 11:49:03 +02001617 pin++;
Jouni Malinena524f052008-12-15 20:09:57 +02001618 else
Jouni Malinen6c6ad812011-01-05 11:49:03 +02001619 wps++;
Jouni Malinena524f052008-12-15 20:09:57 +02001620 wpabuf_free(ie);
Jouni Malinena524f052008-12-15 20:09:57 +02001621 }
Jouni Malinen6c6ad812011-01-05 11:49:03 +02001622
1623 if (pbc)
1624 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1625 else if (auth)
1626 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1627 else if (pin)
1628 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1629 else if (wps)
1630 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
Jouni Malinena524f052008-12-15 20:09:57 +02001631}
Jouni Malinen24c23d12008-12-20 22:55:02 +02001632
1633
1634int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1635{
1636 struct wpa_ssid *ssid;
1637
1638 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1639 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1640 return 1;
1641 }
1642
1643 return 0;
1644}
Jouni Malinen611ed492009-09-11 17:14:49 +03001645
1646
1647int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1648 char *end)
1649{
1650 struct wpabuf *wps_ie;
1651 int ret;
1652
1653 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1654 if (wps_ie == NULL)
1655 return 0;
1656
1657 ret = wps_attr_text(wps_ie, buf, end);
1658 wpabuf_free(wps_ie);
1659 return ret;
1660}
Jouni Malinene9bcfeb2009-11-07 12:41:01 +02001661
1662
Jouni Malinen08486682010-05-27 15:23:55 +03001663int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
Jouni Malinene9bcfeb2009-11-07 12:41:01 +02001664{
1665#ifdef CONFIG_WPS_ER
1666 if (wpa_s->wps_er) {
Jouni Malinenb3f371c2009-11-20 21:57:30 +02001667 wps_er_refresh(wpa_s->wps_er);
Jouni Malinene9bcfeb2009-11-07 12:41:01 +02001668 return 0;
1669 }
Jouni Malinen08486682010-05-27 15:23:55 +03001670 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
Jouni Malinene9bcfeb2009-11-07 12:41:01 +02001671 if (wpa_s->wps_er == NULL)
1672 return -1;
1673 return 0;
1674#else /* CONFIG_WPS_ER */
1675 return 0;
1676#endif /* CONFIG_WPS_ER */
1677}
1678
1679
1680int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1681{
1682#ifdef CONFIG_WPS_ER
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001683 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
Jouni Malinene9bcfeb2009-11-07 12:41:01 +02001684 wpa_s->wps_er = NULL;
1685#endif /* CONFIG_WPS_ER */
1686 return 0;
1687}
Jouni Malinen72df2f52009-11-13 22:07:11 +02001688
1689
1690#ifdef CONFIG_WPS_ER
Jouni Malinen31fcea92009-12-12 16:40:10 +02001691int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1692 const char *uuid, const char *pin)
Jouni Malinen72df2f52009-11-13 22:07:11 +02001693{
1694 u8 u[UUID_LEN];
Jouni Malinene2054012013-04-01 20:52:44 +03001695 const u8 *use_uuid = NULL;
1696 u8 addr_buf[ETH_ALEN];
Jouni Malinen72df2f52009-11-13 22:07:11 +02001697
Jouni Malinene2054012013-04-01 20:52:44 +03001698 if (os_strcmp(uuid, "any") == 0) {
1699 } else if (uuid_str2bin(uuid, u) == 0) {
1700 use_uuid = u;
1701 } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1702 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1703 if (use_uuid == NULL)
1704 return -1;
1705 } else
Jouni Malinen72df2f52009-11-13 22:07:11 +02001706 return -1;
Jouni Malinen31fcea92009-12-12 16:40:10 +02001707 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
Jouni Malinene2054012013-04-01 20:52:44 +03001708 use_uuid,
Jouni Malinen72df2f52009-11-13 22:07:11 +02001709 (const u8 *) pin, os_strlen(pin), 300);
1710}
Jouni Malinen564cd7f2009-11-15 18:46:03 +02001711
1712
1713int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1714{
Jouni Malinene2054012013-04-01 20:52:44 +03001715 u8 u[UUID_LEN], *use_uuid = NULL;
1716 u8 addr[ETH_ALEN], *use_addr = NULL;
Jouni Malinen564cd7f2009-11-15 18:46:03 +02001717
Jouni Malinene2054012013-04-01 20:52:44 +03001718 if (uuid_str2bin(uuid, u) == 0)
1719 use_uuid = u;
1720 else if (hwaddr_aton(uuid, addr) == 0)
1721 use_addr = addr;
1722 else
Jouni Malinen564cd7f2009-11-15 18:46:03 +02001723 return -1;
Jouni Malinene2054012013-04-01 20:52:44 +03001724 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
Jouni Malinen564cd7f2009-11-15 18:46:03 +02001725}
Jouni Malinene64dcfd2009-11-15 22:27:06 +02001726
1727
1728int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1729 const char *pin)
1730{
Jouni Malinen59307b32013-04-01 20:32:09 +03001731 u8 u[UUID_LEN], *use_uuid = NULL;
1732 u8 addr[ETH_ALEN], *use_addr = NULL;
Jouni Malinene64dcfd2009-11-15 22:27:06 +02001733
Jouni Malinen59307b32013-04-01 20:32:09 +03001734 if (uuid_str2bin(uuid, u) == 0)
1735 use_uuid = u;
1736 else if (hwaddr_aton(uuid, addr) == 0)
1737 use_addr = addr;
1738 else
Jouni Malinene64dcfd2009-11-15 22:27:06 +02001739 return -1;
Jouni Malinen59307b32013-04-01 20:32:09 +03001740
1741 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
Jouni Malinene64dcfd2009-11-15 22:27:06 +02001742 os_strlen(pin));
1743}
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001744
1745
Jouni Malinen88c8bf32013-04-01 21:28:57 +03001746static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
1747 struct wps_credential *cred)
1748{
1749 os_memset(cred, 0, sizeof(*cred));
1750 if (ssid->ssid_len > 32)
1751 return -1;
1752 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
1753 cred->ssid_len = ssid->ssid_len;
1754 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1755 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1756 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1757 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1758 cred->encr_type = WPS_ENCR_AES;
1759 else
1760 cred->encr_type = WPS_ENCR_TKIP;
1761 if (ssid->passphrase) {
1762 cred->key_len = os_strlen(ssid->passphrase);
1763 if (cred->key_len >= 64)
1764 return -1;
1765 os_memcpy(cred->key, ssid->passphrase, cred->key_len);
1766 } else if (ssid->psk_set) {
1767 cred->key_len = 32;
1768 os_memcpy(cred->key, ssid->psk, 32);
1769 } else
1770 return -1;
1771 } else {
1772 cred->auth_type = WPS_AUTH_OPEN;
1773 cred->encr_type = WPS_ENCR_NONE;
1774 }
1775
1776 return 0;
1777}
1778
1779
Jouni Malinenef10f472010-10-20 13:37:01 +03001780int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1781 int id)
1782{
Jouni Malinen59307b32013-04-01 20:32:09 +03001783 u8 u[UUID_LEN], *use_uuid = NULL;
1784 u8 addr[ETH_ALEN], *use_addr = NULL;
Jouni Malinenef10f472010-10-20 13:37:01 +03001785 struct wpa_ssid *ssid;
1786 struct wps_credential cred;
1787
Jouni Malinen59307b32013-04-01 20:32:09 +03001788 if (uuid_str2bin(uuid, u) == 0)
1789 use_uuid = u;
1790 else if (hwaddr_aton(uuid, addr) == 0)
1791 use_addr = addr;
1792 else
Jouni Malinenef10f472010-10-20 13:37:01 +03001793 return -1;
1794 ssid = wpa_config_get_network(wpa_s->conf, id);
1795 if (ssid == NULL || ssid->ssid == NULL)
1796 return -1;
1797
Jouni Malinen88c8bf32013-04-01 21:28:57 +03001798 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
Jouni Malinenef10f472010-10-20 13:37:01 +03001799 return -1;
Jouni Malinen59307b32013-04-01 20:32:09 +03001800 return wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
Jouni Malinenef10f472010-10-20 13:37:01 +03001801}
1802
1803
Jouni Malinen7d6640a2010-05-28 00:01:48 +03001804int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1805 const char *pin, struct wps_new_ap_settings *settings)
1806{
Jouni Malinen59307b32013-04-01 20:32:09 +03001807 u8 u[UUID_LEN], *use_uuid = NULL;
1808 u8 addr[ETH_ALEN], *use_addr = NULL;
Jouni Malinen7d6640a2010-05-28 00:01:48 +03001809 struct wps_credential cred;
1810 size_t len;
1811
Jouni Malinen59307b32013-04-01 20:32:09 +03001812 if (uuid_str2bin(uuid, u) == 0)
1813 use_uuid = u;
1814 else if (hwaddr_aton(uuid, addr) == 0)
1815 use_addr = addr;
1816 else
Jouni Malinen7d6640a2010-05-28 00:01:48 +03001817 return -1;
1818 if (settings->ssid_hex == NULL || settings->auth == NULL ||
1819 settings->encr == NULL || settings->key_hex == NULL)
1820 return -1;
1821
1822 os_memset(&cred, 0, sizeof(cred));
1823 len = os_strlen(settings->ssid_hex);
1824 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1825 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1826 return -1;
1827 cred.ssid_len = len / 2;
1828
1829 len = os_strlen(settings->key_hex);
1830 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1831 hexstr2bin(settings->key_hex, cred.key, len / 2))
1832 return -1;
1833 cred.key_len = len / 2;
1834
1835 if (os_strcmp(settings->auth, "OPEN") == 0)
1836 cred.auth_type = WPS_AUTH_OPEN;
1837 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1838 cred.auth_type = WPS_AUTH_WPAPSK;
1839 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1840 cred.auth_type = WPS_AUTH_WPA2PSK;
1841 else
1842 return -1;
1843
1844 if (os_strcmp(settings->encr, "NONE") == 0)
1845 cred.encr_type = WPS_ENCR_NONE;
1846 else if (os_strcmp(settings->encr, "WEP") == 0)
1847 cred.encr_type = WPS_ENCR_WEP;
1848 else if (os_strcmp(settings->encr, "TKIP") == 0)
1849 cred.encr_type = WPS_ENCR_TKIP;
1850 else if (os_strcmp(settings->encr, "CCMP") == 0)
1851 cred.encr_type = WPS_ENCR_AES;
1852 else
1853 return -1;
1854
Jouni Malinen59307b32013-04-01 20:32:09 +03001855 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
1856 (const u8 *) pin, os_strlen(pin), &cred);
Jouni Malinen7d6640a2010-05-28 00:01:48 +03001857}
1858
1859
Jouni Malinen1cea09a2012-06-28 16:35:51 +03001860#ifdef CONFIG_WPS_NFC
1861struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1862 int ndef, const char *uuid)
1863{
1864 struct wpabuf *ret;
Jouni Malinen59307b32013-04-01 20:32:09 +03001865 u8 u[UUID_LEN], *use_uuid = NULL;
1866 u8 addr[ETH_ALEN], *use_addr = NULL;
Jouni Malinen1cea09a2012-06-28 16:35:51 +03001867
1868 if (!wpa_s->wps_er)
1869 return NULL;
1870
Jouni Malinen59307b32013-04-01 20:32:09 +03001871 if (uuid_str2bin(uuid, u) == 0)
1872 use_uuid = u;
1873 else if (hwaddr_aton(uuid, addr) == 0)
1874 use_addr = addr;
1875 else
Jouni Malinen1cea09a2012-06-28 16:35:51 +03001876 return NULL;
1877
Jouni Malinen59307b32013-04-01 20:32:09 +03001878 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
Jouni Malinen1cea09a2012-06-28 16:35:51 +03001879 if (ndef && ret) {
1880 struct wpabuf *tmp;
1881 tmp = ndef_build_wifi(ret);
1882 wpabuf_free(ret);
1883 if (tmp == NULL)
1884 return NULL;
1885 ret = tmp;
1886 }
1887
1888 return ret;
1889}
1890#endif /* CONFIG_WPS_NFC */
1891
1892
Ben Greear4c9695b2011-02-21 21:47:46 +02001893static int callbacks_pending = 0;
1894
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001895static void wpas_wps_terminate_cb(void *ctx)
1896{
1897 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
Ben Greear4c9695b2011-02-21 21:47:46 +02001898 if (--callbacks_pending <= 0)
1899 eloop_terminate();
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001900}
Jouni Malinen72df2f52009-11-13 22:07:11 +02001901#endif /* CONFIG_WPS_ER */
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001902
1903
1904int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1905{
1906#ifdef CONFIG_WPS_ER
1907 if (wpa_s->wps_er) {
Ben Greear4c9695b2011-02-21 21:47:46 +02001908 callbacks_pending++;
Jouni Malinen1a1bf002009-12-19 23:47:54 +02001909 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1910 wpa_s->wps_er = NULL;
1911 return 1;
1912 }
1913#endif /* CONFIG_WPS_ER */
1914 return 0;
1915}
Jouni Malinen41e650a2010-06-11 13:50:13 -07001916
1917
1918int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1919{
1920 struct wpa_ssid *ssid;
1921
1922 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1923 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1924 return 1;
1925 }
1926
1927 return 0;
1928}
Jouni Malinen611aea72010-07-18 14:30:24 -07001929
1930
1931void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1932{
1933 struct wps_context *wps = wpa_s->wps;
1934
1935 if (wps == NULL)
1936 return;
1937
1938 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1939 wps->config_methods = wps_config_methods_str2bin(
1940 wpa_s->conf->config_methods);
1941 if ((wps->config_methods &
1942 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1943 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1944 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1945 "config methods are not allowed at the "
1946 "same time");
1947 wps->config_methods &= ~WPS_CONFIG_LABEL;
1948 }
1949 }
Jouni Malinen092acb52010-10-16 12:57:47 +03001950 wps->config_methods = wps_fix_config_methods(wps->config_methods);
jim1_linc8b245b2012-08-04 20:14:59 +03001951 wps->dev.config_methods = wps->config_methods;
Jouni Malinen611aea72010-07-18 14:30:24 -07001952
Johannes Berg2f646b62011-03-17 18:50:22 +02001953 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1954 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1955 WPS_DEV_TYPE_LEN);
Jouni Malinen611aea72010-07-18 14:30:24 -07001956
Jean-Michel Bachota9e86bf2011-03-17 11:09:49 +02001957 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
Johannes Berg2f646b62011-03-17 18:50:22 +02001958 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1959 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1960 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
Jean-Michel Bachota9e86bf2011-03-17 11:09:49 +02001961 }
1962
Anirban Sirkhell71dd3b72012-04-04 00:08:57 +03001963 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
1964 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1965
Jouni Malinen611aea72010-07-18 14:30:24 -07001966 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1967 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1968
Jouni Malinen85a821d2011-03-17 18:07:00 +02001969 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1970 wpas_wps_set_uuid(wpa_s, wps);
Jouni Malinendcf788d2010-07-06 16:32:55 -07001971
Jouni Malinen1c9cb492010-07-29 17:13:11 -07001972 if (wpa_s->conf->changed_parameters &
1973 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
Jouni Malinendcf788d2010-07-06 16:32:55 -07001974 /* Update pointers to make sure they refer current values */
1975 wps->dev.device_name = wpa_s->conf->device_name;
1976 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1977 wps->dev.model_name = wpa_s->conf->model_name;
1978 wps->dev.model_number = wpa_s->conf->model_number;
1979 wps->dev.serial_number = wpa_s->conf->serial_number;
1980 }
Jouni Malinen611aea72010-07-18 14:30:24 -07001981}
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +03001982
1983
1984#ifdef CONFIG_WPS_NFC
1985
Jouni Malinen88c8bf32013-04-01 21:28:57 +03001986#ifdef CONFIG_WPS_ER
1987static struct wpabuf *
1988wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
1989 struct wpa_ssid *ssid)
Jouni Malinenbbf41862013-02-15 11:45:29 +02001990{
Jouni Malinen88c8bf32013-04-01 21:28:57 +03001991 struct wpabuf *ret;
1992 struct wps_credential cred;
1993
1994 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
1995 return NULL;
1996
1997 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
1998
1999 if (ndef && ret) {
2000 struct wpabuf *tmp;
2001 tmp = ndef_build_wifi(ret);
2002 wpabuf_free(ret);
2003 if (tmp == NULL)
2004 return NULL;
2005 ret = tmp;
2006 }
2007
2008 return ret;
2009}
2010#endif /* CONFIG_WPS_ER */
2011
2012
2013struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
2014 int ndef, const char *id_str)
2015{
2016#ifdef CONFIG_WPS_ER
2017 if (id_str) {
2018 int id;
2019 char *end = NULL;
2020 struct wpa_ssid *ssid;
2021
2022 id = strtol(id_str, &end, 10);
2023 if (end && *end)
2024 return NULL;
2025
2026 ssid = wpa_config_get_network(wpa_s->conf, id);
2027 if (ssid == NULL)
2028 return NULL;
2029 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
2030 }
2031#endif /* CONFIG_WPS_ER */
Jouni Malinenbbf41862013-02-15 11:45:29 +02002032#ifdef CONFIG_AP
2033 if (wpa_s->ap_iface)
2034 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
2035#endif /* CONFIG_AP */
2036 return NULL;
2037}
2038
2039
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +03002040struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
2041{
Jouni Malinen042ec552013-02-15 11:24:29 +02002042 if (wpa_s->conf->wps_nfc_pw_from_config) {
2043 return wps_nfc_token_build(ndef,
2044 wpa_s->conf->wps_nfc_dev_pw_id,
2045 wpa_s->conf->wps_nfc_dh_pubkey,
2046 wpa_s->conf->wps_nfc_dev_pw);
2047 }
2048
Jouni Malinenbfc62fe2012-06-28 20:54:53 +03002049 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
2050 &wpa_s->conf->wps_nfc_dh_pubkey,
2051 &wpa_s->conf->wps_nfc_dh_privkey,
2052 &wpa_s->conf->wps_nfc_dev_pw);
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +03002053}
2054
2055
2056int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2057{
2058 struct wps_context *wps = wpa_s->wps;
2059 char pw[32 * 2 + 1];
2060
2061 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
2062 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
2063 wpa_s->conf->wps_nfc_dev_pw == NULL)
2064 return -1;
2065
2066 dh5_free(wps->dh_ctx);
2067 wpabuf_free(wps->dh_pubkey);
2068 wpabuf_free(wps->dh_privkey);
2069 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2070 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2071 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
2072 wps->dh_ctx = NULL;
2073 wpabuf_free(wps->dh_pubkey);
2074 wps->dh_pubkey = NULL;
2075 wpabuf_free(wps->dh_privkey);
2076 wps->dh_privkey = NULL;
2077 return -1;
2078 }
2079 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
Jouni Malinen5c9d63d2013-04-01 19:27:32 +03002080 if (wps->dh_ctx == NULL) {
2081 wpabuf_free(wps->dh_pubkey);
2082 wps->dh_pubkey = NULL;
2083 wpabuf_free(wps->dh_privkey);
2084 wps->dh_privkey = NULL;
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +03002085 return -1;
Jouni Malinen5c9d63d2013-04-01 19:27:32 +03002086 }
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +03002087
2088 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2089 wpabuf_head(wpa_s->conf->wps_nfc_dev_pw),
2090 wpabuf_len(wpa_s->conf->wps_nfc_dev_pw));
2091 return wpas_wps_start_pin(wpa_s, bssid, pw, 0,
2092 wpa_s->conf->wps_nfc_dev_pw_id);
2093}
2094
Jouni Malinend7645d22012-06-28 13:59:29 +03002095
2096static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2097 struct wps_parse_attr *attr)
2098{
Jouni Malinenbd3a3732012-10-28 18:02:04 +02002099 wpa_s->wps_ap_channel = 0;
2100
Jouni Malinen170f5662013-05-15 16:46:45 +03002101 /*
2102 * Disable existing networks temporarily to allow the newly learned
2103 * credential to be preferred. Enable the temporarily disabled networks
2104 * after 10 seconds.
2105 */
2106 wpas_wps_temp_disable(wpa_s, NULL);
2107 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
2108 NULL);
2109
Jouni Malinend7645d22012-06-28 13:59:29 +03002110 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2111 return -1;
2112
2113 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2114 return 0;
2115
2116 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2117 "based on the received credential added");
2118 wpa_s->normal_scans = 0;
2119 wpa_supplicant_reinit_autoscan(wpa_s);
Jouni Malinenbd3a3732012-10-28 18:02:04 +02002120 if (wpa_s->wps_ap_channel) {
2121 u16 chan = wpa_s->wps_ap_channel;
2122 int freq = 0;
2123
2124 if (chan >= 1 && chan <= 13)
2125 freq = 2407 + 5 * chan;
2126 else if (chan == 14)
2127 freq = 2484;
2128 else if (chan >= 30)
2129 freq = 5000 + 5 * chan;
2130
2131 if (freq) {
2132 wpa_printf(MSG_DEBUG, "WPS: Credential indicated "
2133 "AP channel %u -> %u MHz", chan, freq);
2134 wpa_s->after_wps = 5;
2135 wpa_s->wps_freq = freq;
2136 }
2137 }
Jouni Malinend7645d22012-06-28 13:59:29 +03002138 wpa_s->disconnected = 0;
2139 wpa_s->reassociate = 1;
2140 wpa_supplicant_req_scan(wpa_s, 0, 0);
2141
2142 return 0;
2143}
2144
2145
Masashi Honma6df865f2012-09-15 22:02:09 -07002146#ifdef CONFIG_WPS_ER
Jouni Malinene6ea2a42012-06-28 17:34:46 +03002147static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2148 struct wps_parse_attr *attr)
2149{
Jouni Malinene6ea2a42012-06-28 17:34:46 +03002150 return wps_registrar_add_nfc_password_token(
2151 wpa_s->wps->registrar, attr->oob_dev_password,
2152 attr->oob_dev_password_len);
2153}
Masashi Honma6df865f2012-09-15 22:02:09 -07002154#endif /* CONFIG_WPS_ER */
Jouni Malinene6ea2a42012-06-28 17:34:46 +03002155
2156
Jouni Malinend7645d22012-06-28 13:59:29 +03002157static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2158 const struct wpabuf *wps)
2159{
2160 struct wps_parse_attr attr;
2161
2162 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2163
2164 if (wps_parse_msg(wps, &attr)) {
2165 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2166 return -1;
2167 }
2168
2169 if (attr.num_cred)
2170 return wpas_wps_use_cred(wpa_s, &attr);
2171
Jouni Malinene6ea2a42012-06-28 17:34:46 +03002172#ifdef CONFIG_WPS_ER
2173 if (attr.oob_dev_password)
2174 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2175#endif /* CONFIG_WPS_ER */
2176
Jouni Malinend7645d22012-06-28 13:59:29 +03002177 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2178 return -1;
2179}
2180
2181
2182int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2183 const struct wpabuf *data)
2184{
2185 const struct wpabuf *wps = data;
2186 struct wpabuf *tmp = NULL;
2187 int ret;
2188
2189 if (wpabuf_len(data) < 4)
2190 return -1;
2191
2192 if (*wpabuf_head_u8(data) != 0x10) {
2193 /* Assume this contains full NDEF record */
2194 tmp = ndef_parse_wifi(data);
2195 if (tmp == NULL) {
2196 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2197 return -1;
2198 }
2199 wps = tmp;
2200 }
2201
2202 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2203 wpabuf_free(tmp);
2204 return ret;
2205}
2206
Jouni Malinene65552d2012-10-28 17:39:46 +02002207
Jouni Malinenbbaaaee2013-02-10 18:19:59 +02002208struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, int cr)
Jouni Malinene65552d2012-10-28 17:39:46 +02002209{
Jouni Malinenbbaaaee2013-02-10 18:19:59 +02002210 if (cr)
2211 return ndef_build_wifi_hc(1);
Jouni Malinene65552d2012-10-28 17:39:46 +02002212 return ndef_build_wifi_hr();
2213}
2214
2215
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002216#ifdef CONFIG_WPS_NFC
2217struct wpabuf * wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2218 int ndef, const char *uuid)
Jouni Malinene65552d2012-10-28 17:39:46 +02002219{
Jouni Malinen94d7acf2013-03-13 00:01:32 +02002220#ifdef CONFIG_WPS_ER
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002221 struct wpabuf *ret;
Jouni Malinen59307b32013-04-01 20:32:09 +03002222 u8 u[UUID_LEN], *use_uuid = NULL;
2223 u8 addr[ETH_ALEN], *use_addr = NULL;
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002224
2225 if (!wpa_s->wps_er)
2226 return NULL;
2227
Jouni Malinen59307b32013-04-01 20:32:09 +03002228 if (uuid == NULL)
2229 return NULL;
2230 if (uuid_str2bin(uuid, u) == 0)
2231 use_uuid = u;
2232 else if (hwaddr_aton(uuid, addr) == 0)
2233 use_addr = addr;
2234 else
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002235 return NULL;
2236
2237 /*
2238 * Handover Select carrier record for WPS uses the same format as
2239 * configuration token.
2240 */
Jouni Malinen59307b32013-04-01 20:32:09 +03002241 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002242 if (ndef && ret) {
2243 struct wpabuf *tmp;
2244 tmp = ndef_build_wifi(ret);
2245 wpabuf_free(ret);
2246 if (tmp == NULL)
2247 return NULL;
2248 ret = tmp;
2249 }
2250
2251 return ret;
Jouni Malinen94d7acf2013-03-13 00:01:32 +02002252#else /* CONFIG_WPS_ER */
2253 return NULL;
2254#endif /* CONFIG_WPS_ER */
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002255}
2256#endif /* CONFIG_WPS_NFC */
2257
2258
2259struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2260 int ndef, int cr, const char *uuid)
2261{
2262 struct wpabuf *ret;
Jouni Malinen5ab9a6a2013-02-15 12:34:55 +02002263 if (!cr)
2264 return NULL;
Jouni Malinenf3f2ba22013-02-24 10:56:29 +02002265 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2266 if (ret)
2267 return ret;
2268 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
Jouni Malinene65552d2012-10-28 17:39:46 +02002269}
2270
2271
2272int wpas_wps_nfc_rx_handover_req(struct wpa_supplicant *wpa_s,
2273 const struct wpabuf *data)
2274{
2275 /* TODO */
2276 return -1;
2277}
2278
2279
2280int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2281 const struct wpabuf *data)
2282{
2283 struct wpabuf *wps;
2284 int ret;
2285
2286 wps = ndef_parse_wifi(data);
2287 if (wps == NULL)
2288 return -1;
2289 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2290 "payload from NFC connection handover");
2291 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: NFC payload", wps);
2292 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2293 wpabuf_free(wps);
2294
2295 return ret;
2296}
2297
Jouni Malinene4758822013-02-11 18:43:46 +02002298
2299int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2300 const struct wpabuf *req,
2301 const struct wpabuf *sel)
2302{
2303 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2304 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2305 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2306 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2307}
2308
Jouni Malinen3f2c8ba2012-06-27 18:56:41 +03002309#endif /* CONFIG_WPS_NFC */
Jouni Malinenf9f05262012-08-27 13:48:11 +03002310
2311
2312extern int wpa_debug_level;
2313
2314static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2315{
2316 size_t i;
2317 struct os_time now;
2318
2319 if (wpa_debug_level > MSG_DEBUG)
2320 return;
2321
2322 if (wpa_s->wps_ap == NULL)
2323 return;
2324
2325 os_get_time(&now);
2326
2327 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2328 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2329 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2330
2331 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2332 "tries=%d last_attempt=%d sec ago blacklist=%d",
2333 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2334 ap->last_attempt.sec > 0 ?
2335 (int) now.sec - (int) ap->last_attempt.sec : -1,
2336 e ? e->count : 0);
2337 }
2338}
2339
2340
2341static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2342 const u8 *bssid)
2343{
2344 size_t i;
2345
2346 if (wpa_s->wps_ap == NULL)
2347 return NULL;
2348
2349 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2350 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2351 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2352 return ap;
2353 }
2354
2355 return NULL;
2356}
2357
2358
2359static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2360 struct wpa_scan_res *res)
2361{
2362 struct wpabuf *wps;
2363 enum wps_ap_info_type type;
2364 struct wps_ap_info *ap;
2365 int r;
2366
2367 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2368 return;
2369
2370 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2371 if (wps == NULL)
2372 return;
2373
2374 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2375 if (r == 2)
2376 type = WPS_AP_SEL_REG_OUR;
2377 else if (r == 1)
2378 type = WPS_AP_SEL_REG;
2379 else
2380 type = WPS_AP_NOT_SEL_REG;
2381
2382 wpabuf_free(wps);
2383
2384 ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2385 if (ap) {
2386 if (ap->type != type) {
2387 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2388 " changed type %d -> %d",
2389 MAC2STR(res->bssid), ap->type, type);
2390 ap->type = type;
Jouni Malinena4620362012-08-27 13:51:35 +03002391 if (type != WPS_AP_NOT_SEL_REG)
2392 wpa_blacklist_del(wpa_s, ap->bssid);
Jouni Malinenf9f05262012-08-27 13:48:11 +03002393 }
2394 return;
2395 }
2396
2397 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2398 sizeof(struct wps_ap_info));
2399 if (ap == NULL)
2400 return;
2401
2402 wpa_s->wps_ap = ap;
2403 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2404 wpa_s->num_wps_ap++;
2405
2406 os_memset(ap, 0, sizeof(*ap));
2407 os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2408 ap->type = type;
2409 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2410 MAC2STR(ap->bssid), ap->type);
2411}
2412
2413
2414void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2415 struct wpa_scan_results *scan_res)
2416{
2417 size_t i;
2418
2419 for (i = 0; i < scan_res->num; i++)
2420 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2421
2422 wpas_wps_dump_ap_info(wpa_s);
2423}
2424
2425
2426void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2427{
2428 struct wps_ap_info *ap;
2429 if (!wpa_s->wps_ap_iter)
2430 return;
2431 ap = wpas_wps_get_ap_info(wpa_s, bssid);
2432 if (ap == NULL)
2433 return;
2434 ap->tries++;
2435 os_get_time(&ap->last_attempt);
2436}