1 /*
2 * hostapd / WPS integration
3 * Copyright (c) 2008-2016, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "utils/includes.h"
10
11 #include "utils/common.h"
12 #include "utils/eloop.h"
13 #include "utils/uuid.h"
14 #include "common/wpa_ctrl.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/ieee802_11_common.h"
17 #include "eapol_auth/eapol_auth_sm.h"
18 #include "eapol_auth/eapol_auth_sm_i.h"
19 #include "wps/wps.h"
20 #include "wps/wps_defs.h"
21 #include "wps/wps_dev_attr.h"
22 #include "wps/wps_attr_parse.h"
23 #include "hostapd.h"
24 #include "ap_config.h"
25 #include "ap_drv_ops.h"
26 #include "beacon.h"
27 #include "sta_info.h"
28 #include "wps_hostapd.h"
29
30
31 #ifdef CONFIG_WPS_UPNP
32 #include "wps/wps_upnp.h"
33 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
34 struct wps_context *wps);
35 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
36 #endif /* CONFIG_WPS_UPNP */
37
38 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
39 const u8 *bssid,
40 const u8 *ie, size_t ie_len,
41 int ssi_signal);
42 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
43 static void hostapd_wps_nfc_clear(struct wps_context *wps);
44
45
46 struct wps_for_each_data {
47 int (*func)(struct hostapd_data *h, void *ctx);
48 void *ctx;
49 struct hostapd_data *calling_hapd;
50 };
51
52
wps_for_each(struct hostapd_iface * iface,void * ctx)53 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
54 {
55 struct wps_for_each_data *data = ctx;
56 size_t j;
57
58 if (iface == NULL)
59 return 0;
60 for (j = 0; j < iface->num_bss; j++) {
61 struct hostapd_data *hapd = iface->bss[j];
62 int ret;
63
64 if (hapd != data->calling_hapd &&
65 (hapd->conf->wps_independent ||
66 data->calling_hapd->conf->wps_independent))
67 continue;
68
69 ret = data->func(hapd, data->ctx);
70 if (ret)
71 return ret;
72 }
73
74 return 0;
75 }
76
77
hostapd_wps_for_each(struct hostapd_data * hapd,int (* func)(struct hostapd_data * h,void * ctx),void * ctx)78 static int hostapd_wps_for_each(struct hostapd_data *hapd,
79 int (*func)(struct hostapd_data *h, void *ctx),
80 void *ctx)
81 {
82 struct hostapd_iface *iface = hapd->iface;
83 struct wps_for_each_data data;
84 data.func = func;
85 data.ctx = ctx;
86 data.calling_hapd = hapd;
87 if (iface->interfaces == NULL ||
88 iface->interfaces->for_each_interface == NULL)
89 return wps_for_each(iface, &data);
90 return iface->interfaces->for_each_interface(iface->interfaces,
91 wps_for_each, &data);
92 }
93
94
hostapd_wps_new_psk_cb(void * ctx,const u8 * mac_addr,const u8 * p2p_dev_addr,const u8 * psk,size_t psk_len)95 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
96 const u8 *p2p_dev_addr, const u8 *psk,
97 size_t psk_len)
98 {
99 struct hostapd_data *hapd = ctx;
100 struct hostapd_wpa_psk *p;
101 struct hostapd_ssid *ssid = &hapd->conf->ssid;
102
103 if (is_zero_ether_addr(p2p_dev_addr)) {
104 wpa_printf(MSG_DEBUG,
105 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
106 MAC2STR(mac_addr));
107 } else {
108 wpa_printf(MSG_DEBUG,
109 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
110 " P2P Device Addr " MACSTR,
111 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
112 }
113 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
114
115 if (psk_len != PMK_LEN) {
116 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
117 (unsigned long) psk_len);
118 return -1;
119 }
120
121 /* Add the new PSK to runtime PSK list */
122 p = os_zalloc(sizeof(*p));
123 if (p == NULL)
124 return -1;
125 os_memcpy(p->addr, mac_addr, ETH_ALEN);
126 os_memcpy(p->p2p_dev_addr, p2p_dev_addr, ETH_ALEN);
127 os_memcpy(p->psk, psk, PMK_LEN);
128 p->wps = 1;
129
130 if (hapd->new_psk_cb) {
131 hapd->new_psk_cb(hapd->new_psk_cb_ctx, mac_addr, p2p_dev_addr,
132 psk, psk_len);
133 }
134
135 p->next = ssid->wpa_psk;
136 ssid->wpa_psk = p;
137
138 if (ssid->wpa_psk_file) {
139 FILE *f;
140 char hex[PMK_LEN * 2 + 1];
141
142 /* Add the new PSK to PSK list file */
143 f = fopen(ssid->wpa_psk_file, "a");
144 if (!f) {
145 wpa_printf(MSG_DEBUG, "Failed to add the PSK to '%s'",
146 ssid->wpa_psk_file);
147 return -1;
148 }
149
150 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
151 fprintf(f, "wps=1 " MACSTR " %s\n", MAC2STR(mac_addr), hex);
152 fclose(f);
153 }
154
155 return 0;
156 }
157
158
hostapd_wps_set_ie_cb(void * ctx,struct wpabuf * beacon_ie,struct wpabuf * probe_resp_ie)159 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
160 struct wpabuf *probe_resp_ie)
161 {
162 struct hostapd_data *hapd = ctx;
163 wpabuf_free(hapd->wps_beacon_ie);
164 hapd->wps_beacon_ie = beacon_ie;
165 wpabuf_free(hapd->wps_probe_resp_ie);
166 hapd->wps_probe_resp_ie = probe_resp_ie;
167 if (hapd->beacon_set_done)
168 ieee802_11_set_beacon(hapd);
169 return hostapd_set_ap_wps_ie(hapd);
170 }
171
172
hostapd_wps_pin_needed_cb(void * ctx,const u8 * uuid_e,const struct wps_device_data * dev)173 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
174 const struct wps_device_data *dev)
175 {
176 struct hostapd_data *hapd = ctx;
177 char uuid[40], txt[400];
178 int len;
179 char devtype[WPS_DEV_TYPE_BUFSIZE];
180 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
181 return;
182 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
183 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
184 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
185 uuid, MAC2STR(dev->mac_addr), dev->device_name,
186 dev->manufacturer, dev->model_name,
187 dev->model_number, dev->serial_number,
188 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
189 sizeof(devtype)));
190 if (!os_snprintf_error(sizeof(txt), len))
191 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
192
193 if (hapd->conf->wps_pin_requests) {
194 FILE *f;
195 struct os_time t;
196 f = fopen(hapd->conf->wps_pin_requests, "a");
197 if (f == NULL)
198 return;
199 os_get_time(&t);
200 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
201 "\t%s\n",
202 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
203 dev->manufacturer, dev->model_name, dev->model_number,
204 dev->serial_number,
205 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
206 sizeof(devtype)));
207 fclose(f);
208 }
209 }
210
211
212 struct wps_stop_reg_data {
213 struct hostapd_data *current_hapd;
214 const u8 *uuid_e;
215 const u8 *dev_pw;
216 size_t dev_pw_len;
217 };
218
wps_stop_registrar(struct hostapd_data * hapd,void * ctx)219 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
220 {
221 struct wps_stop_reg_data *data = ctx;
222 if (hapd != data->current_hapd && hapd->wps != NULL)
223 wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
224 data->dev_pw, data->dev_pw_len);
225 return 0;
226 }
227
228
hostapd_wps_reg_success_cb(void * ctx,const u8 * mac_addr,const u8 * uuid_e,const u8 * dev_pw,size_t dev_pw_len)229 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
230 const u8 *uuid_e, const u8 *dev_pw,
231 size_t dev_pw_len)
232 {
233 struct hostapd_data *hapd = ctx;
234 char uuid[40];
235 struct wps_stop_reg_data data;
236 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
237 return;
238 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
239 MAC2STR(mac_addr), uuid);
240 if (hapd->wps_reg_success_cb)
241 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
242 mac_addr, uuid_e);
243 data.current_hapd = hapd;
244 data.uuid_e = uuid_e;
245 data.dev_pw = dev_pw;
246 data.dev_pw_len = dev_pw_len;
247 hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
248 }
249
250
hostapd_wps_enrollee_seen_cb(void * ctx,const u8 * addr,const u8 * uuid_e,const u8 * pri_dev_type,u16 config_methods,u16 dev_password_id,u8 request_type,const char * dev_name)251 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
252 const u8 *uuid_e,
253 const u8 *pri_dev_type,
254 u16 config_methods,
255 u16 dev_password_id, u8 request_type,
256 const char *dev_name)
257 {
258 struct hostapd_data *hapd = ctx;
259 char uuid[40];
260 char devtype[WPS_DEV_TYPE_BUFSIZE];
261 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
262 return;
263 if (dev_name == NULL)
264 dev_name = "";
265 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
266 " %s %s 0x%x %u %u [%s]",
267 MAC2STR(addr), uuid,
268 wps_dev_type_bin2str(pri_dev_type, devtype,
269 sizeof(devtype)),
270 config_methods, dev_password_id, request_type, dev_name);
271 }
272
273
hostapd_wps_lookup_pskfile_cb(void * ctx,const u8 * mac_addr,const u8 ** psk)274 static int hostapd_wps_lookup_pskfile_cb(void *ctx, const u8 *mac_addr,
275 const u8 **psk)
276 {
277 const struct hostapd_data *hapd = ctx;
278 const struct hostapd_wpa_psk *wpa_psk;
279 const u8 *any_psk = NULL;
280 const u8 *dev_psk = NULL;
281
282 for (wpa_psk = hapd->conf->ssid.wpa_psk; wpa_psk;
283 wpa_psk = wpa_psk->next) {
284 if (!wpa_psk->wps)
285 continue;
286
287 if (!any_psk && is_zero_ether_addr(wpa_psk->addr))
288 any_psk = wpa_psk->psk;
289
290 if (mac_addr && !dev_psk &&
291 os_memcmp(mac_addr, wpa_psk->addr, ETH_ALEN) == 0) {
292 dev_psk = wpa_psk->psk;
293 break;
294 }
295 }
296
297 if (dev_psk) {
298 *psk = dev_psk;
299 } else if (any_psk) {
300 *psk = any_psk;
301 } else {
302 *psk = NULL;
303 wpa_printf(MSG_DEBUG,
304 "WPS: No appropriate PSK in wpa_psk_file");
305 return 0;
306 }
307
308 return 1;
309 }
310
311
wps_reload_config(void * eloop_data,void * user_ctx)312 static void wps_reload_config(void *eloop_data, void *user_ctx)
313 {
314 struct hostapd_iface *iface = eloop_data;
315
316 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
317 if (iface->interfaces == NULL ||
318 iface->interfaces->reload_config(iface) < 0) {
319 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
320 "configuration");
321 }
322 }
323
324
hostapd_wps_eap_completed(struct hostapd_data * hapd)325 void hostapd_wps_eap_completed(struct hostapd_data *hapd)
326 {
327 /*
328 * Reduce race condition of the station trying to reconnect immediately
329 * after AP reconfiguration through WPS by rescheduling the reload
330 * timeout to happen after EAP completion rather than the originally
331 * scheduled 100 ms after new configuration became known.
332 */
333 if (eloop_deplete_timeout(0, 0, wps_reload_config, hapd->iface, NULL) ==
334 1)
335 wpa_printf(MSG_DEBUG, "WPS: Reschedule immediate configuration reload");
336 }
337
338
hapd_new_ap_event(struct hostapd_data * hapd,const u8 * attr,size_t attr_len)339 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
340 size_t attr_len)
341 {
342 size_t blen = attr_len * 2 + 1;
343 char *buf = os_malloc(blen);
344 if (buf) {
345 wpa_snprintf_hex(buf, blen, attr, attr_len);
346 wpa_msg(hapd->msg_ctx, MSG_INFO,
347 WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
348 os_free(buf);
349 }
350 }
351
352
hapd_wps_reconfig_in_memory(struct hostapd_data * hapd,const struct wps_credential * cred)353 static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
354 const struct wps_credential *cred)
355 {
356 struct hostapd_bss_config *bss = hapd->conf;
357
358 wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
359
360 bss->wps_state = 2;
361 if (cred->ssid_len <= SSID_MAX_LEN) {
362 os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
363 bss->ssid.ssid_len = cred->ssid_len;
364 bss->ssid.ssid_set = 1;
365 }
366
367 #ifdef CONFIG_NO_TKIP
368 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK |
369 WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
370 bss->wpa = 2;
371 else
372 bss->wpa = 0;
373 #else /* CONFIG_NO_TKIP */
374 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
375 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
376 bss->wpa = 3;
377 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
378 bss->wpa = 2;
379 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
380 bss->wpa = 1;
381 else
382 bss->wpa = 0;
383 #endif /* CONFIG_NO_TKIP */
384
385 if (bss->wpa) {
386 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
387 bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
388 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
389 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
390
391 bss->wpa_pairwise = 0;
392 if (cred->encr_type & WPS_ENCR_AES) {
393 if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD)
394 bss->wpa_pairwise |= WPA_CIPHER_GCMP;
395 else
396 bss->wpa_pairwise |= WPA_CIPHER_CCMP;
397 }
398 #ifndef CONFIG_NO_TKIP
399 if (cred->encr_type & WPS_ENCR_TKIP)
400 bss->wpa_pairwise |= WPA_CIPHER_TKIP;
401 #endif /* CONFIG_NO_TKIP */
402 bss->rsn_pairwise = bss->wpa_pairwise;
403 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
404 bss->wpa_pairwise,
405 bss->rsn_pairwise);
406
407 if (hapd->conf->wps_cred_add_sae &&
408 (cred->auth_type & WPS_AUTH_WPA2PSK) &&
409 cred->key_len != 2 * PMK_LEN) {
410 bss->wpa_key_mgmt |= WPA_KEY_MGMT_SAE;
411 if (bss->ieee80211w == NO_MGMT_FRAME_PROTECTION)
412 bss->ieee80211w =
413 MGMT_FRAME_PROTECTION_OPTIONAL;
414 bss->sae_require_mfp = 1;
415 }
416
417 if (cred->key_len >= 8 && cred->key_len < 64) {
418 os_free(bss->ssid.wpa_passphrase);
419 bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
420 if (bss->ssid.wpa_passphrase)
421 os_memcpy(bss->ssid.wpa_passphrase, cred->key,
422 cred->key_len);
423 hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk);
424 } else if (cred->key_len == 64) {
425 hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk);
426 bss->ssid.wpa_psk =
427 os_zalloc(sizeof(struct hostapd_wpa_psk));
428 if (bss->ssid.wpa_psk &&
429 hexstr2bin((const char *) cred->key,
430 bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
431 bss->ssid.wpa_psk->group = 1;
432 os_free(bss->ssid.wpa_passphrase);
433 bss->ssid.wpa_passphrase = NULL;
434 }
435 }
436 bss->auth_algs = 1;
437 } else {
438 /*
439 * WPS 2.0 does not allow WEP to be configured, so no need to
440 * process that option here either.
441 */
442 bss->auth_algs = 1;
443 }
444
445 /* Schedule configuration reload after short period of time to allow
446 * EAP-WSC to be finished.
447 */
448 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
449 NULL);
450
451 return 0;
452 }
453
454
hapd_wps_cred_cb(struct hostapd_data * hapd,void * ctx)455 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
456 {
457 const struct wps_credential *cred = ctx;
458 FILE *oconf, *nconf;
459 size_t len, i;
460 char *tmp_fname;
461 char buf[1024];
462 int multi_bss;
463 int wpa;
464 int pmf_changed = 0;
465
466 if (hapd->wps == NULL)
467 return 0;
468
469 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
470 cred->cred_attr, cred->cred_attr_len);
471
472 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
473 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
474 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
475 cred->auth_type);
476 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
477 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
478 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
479 cred->key, cred->key_len);
480 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
481 MAC2STR(cred->mac_addr));
482
483 if ((hapd->conf->wps_cred_processing == 1 ||
484 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
485 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
486 } else if (hapd->conf->wps_cred_processing == 1 ||
487 hapd->conf->wps_cred_processing == 2) {
488 struct wpabuf *attr;
489 attr = wpabuf_alloc(200);
490 if (attr && wps_build_credential_wrap(attr, cred) == 0)
491 hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
492 wpabuf_len(attr));
493 wpabuf_free(attr);
494 } else
495 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
496
497 if (hapd->conf->wps_cred_processing == 1)
498 return 0;
499
500 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
501 hapd->wps->ssid_len = cred->ssid_len;
502 hapd->wps->encr_types = cred->encr_type;
503 hapd->wps->encr_types_rsn = cred->encr_type;
504 hapd->wps->encr_types_wpa = cred->encr_type;
505 hapd->wps->auth_types = cred->auth_type;
506 hapd->wps->ap_encr_type = cred->encr_type;
507 hapd->wps->ap_auth_type = cred->auth_type;
508 if (cred->key_len == 0) {
509 os_free(hapd->wps->network_key);
510 hapd->wps->network_key = NULL;
511 hapd->wps->network_key_len = 0;
512 } else if ((cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) &&
513 (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN)) {
514 wpa_printf(MSG_INFO, "WPS: Invalid key length %lu for WPA/WPA2",
515 (unsigned long) cred->key_len);
516 return -1;
517 } else {
518 if (hapd->wps->network_key == NULL ||
519 hapd->wps->network_key_len < cred->key_len) {
520 hapd->wps->network_key_len = 0;
521 os_free(hapd->wps->network_key);
522 hapd->wps->network_key = os_malloc(cred->key_len);
523 if (hapd->wps->network_key == NULL)
524 return -1;
525 }
526 hapd->wps->network_key_len = cred->key_len;
527 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
528 }
529 hapd->wps->wps_state = WPS_STATE_CONFIGURED;
530
531 if (hapd->iface->config_fname == NULL)
532 return hapd_wps_reconfig_in_memory(hapd, cred);
533 len = os_strlen(hapd->iface->config_fname) + 5;
534 tmp_fname = os_malloc(len);
535 if (tmp_fname == NULL)
536 return -1;
537 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
538
539 oconf = fopen(hapd->iface->config_fname, "r");
540 if (oconf == NULL) {
541 wpa_printf(MSG_WARNING, "WPS: Could not open current "
542 "configuration file");
543 os_free(tmp_fname);
544 return -1;
545 }
546
547 nconf = fopen(tmp_fname, "w");
548 if (nconf == NULL) {
549 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
550 "configuration file");
551 os_free(tmp_fname);
552 fclose(oconf);
553 return -1;
554 }
555
556 fprintf(nconf, "# WPS configuration - START\n");
557
558 fprintf(nconf, "wps_state=2\n");
559
560 if (is_hex(cred->ssid, cred->ssid_len)) {
561 fprintf(nconf, "ssid2=");
562 for (i = 0; i < cred->ssid_len; i++)
563 fprintf(nconf, "%02x", cred->ssid[i]);
564 fprintf(nconf, "\n");
565 } else {
566 fprintf(nconf, "ssid=");
567 for (i = 0; i < cred->ssid_len; i++)
568 fputc(cred->ssid[i], nconf);
569 fprintf(nconf, "\n");
570 }
571
572 #ifdef CONFIG_NO_TKIP
573 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK |
574 WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
575 wpa = 2;
576 else
577 wpa = 0;
578 #else /* CONFIG_NO_TKIP */
579 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
580 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
581 wpa = 3;
582 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
583 wpa = 2;
584 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
585 wpa = 1;
586 else
587 wpa = 0;
588 #endif /* CONFIG_NO_TKIP */
589
590 if (wpa) {
591 char *prefix;
592 int sae = 0;
593
594 fprintf(nconf, "wpa=%d\n", wpa);
595
596 fprintf(nconf, "wpa_key_mgmt=");
597 prefix = "";
598 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
599 fprintf(nconf, "WPA-EAP");
600 prefix = " ";
601 }
602 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) {
603 fprintf(nconf, "%sWPA-PSK", prefix);
604 prefix = " ";
605 }
606 if (hapd->conf->wps_cred_add_sae &&
607 (cred->auth_type & WPS_AUTH_WPA2PSK) &&
608 cred->key_len != 2 * PMK_LEN) {
609 fprintf(nconf, "%sSAE", prefix);
610 sae = 1;
611 }
612 fprintf(nconf, "\n");
613
614 if (sae && hapd->conf->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
615 fprintf(nconf, "ieee80211w=%d\n",
616 MGMT_FRAME_PROTECTION_OPTIONAL);
617 pmf_changed = 1;
618 }
619 if (sae)
620 fprintf(nconf, "sae_require_mfp=1\n");
621
622 fprintf(nconf, "wpa_pairwise=");
623 prefix = "";
624 if (cred->encr_type & WPS_ENCR_AES) {
625 if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD)
626 fprintf(nconf, "GCMP");
627 else
628 fprintf(nconf, "CCMP");
629
630 prefix = " ";
631 }
632 #ifndef CONFIG_NO_TKIP
633 if (cred->encr_type & WPS_ENCR_TKIP) {
634 fprintf(nconf, "%sTKIP", prefix);
635 }
636 #endif /* CONFIG_NO_TKIP */
637 fprintf(nconf, "\n");
638
639 if (cred->key_len >= 8 && cred->key_len < 64) {
640 fprintf(nconf, "wpa_passphrase=");
641 for (i = 0; i < cred->key_len; i++)
642 fputc(cred->key[i], nconf);
643 fprintf(nconf, "\n");
644 } else if (cred->key_len == 64) {
645 fprintf(nconf, "wpa_psk=");
646 for (i = 0; i < cred->key_len; i++)
647 fputc(cred->key[i], nconf);
648 fprintf(nconf, "\n");
649 } else {
650 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
651 "for WPA/WPA2",
652 (unsigned long) cred->key_len);
653 }
654
655 fprintf(nconf, "auth_algs=1\n");
656 } else {
657 /*
658 * WPS 2.0 does not allow WEP to be configured, so no need to
659 * process that option here either.
660 */
661 fprintf(nconf, "auth_algs=1\n");
662 }
663
664 fprintf(nconf, "# WPS configuration - END\n");
665
666 multi_bss = 0;
667 while (fgets(buf, sizeof(buf), oconf)) {
668 if (os_strncmp(buf, "bss=", 4) == 0)
669 multi_bss = 1;
670 if (!multi_bss &&
671 (str_starts(buf, "ssid=") ||
672 str_starts(buf, "ssid2=") ||
673 str_starts(buf, "auth_algs=") ||
674 #ifdef CONFIG_WEP
675 str_starts(buf, "wep_default_key=") ||
676 str_starts(buf, "wep_key") ||
677 #endif /* CONFIG_WEP */
678 str_starts(buf, "wps_state=") ||
679 (pmf_changed && str_starts(buf, "ieee80211w=")) ||
680 str_starts(buf, "wpa=") ||
681 str_starts(buf, "wpa_psk=") ||
682 str_starts(buf, "wpa_pairwise=") ||
683 str_starts(buf, "rsn_pairwise=") ||
684 str_starts(buf, "wpa_key_mgmt=") ||
685 str_starts(buf, "wpa_passphrase="))) {
686 fprintf(nconf, "#WPS# %s", buf);
687 } else
688 fprintf(nconf, "%s", buf);
689 }
690
691 fclose(nconf);
692 fclose(oconf);
693
694 if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
695 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
696 "configuration file: %s", strerror(errno));
697 os_free(tmp_fname);
698 return -1;
699 }
700
701 os_free(tmp_fname);
702
703 /* Schedule configuration reload after short period of time to allow
704 * EAP-WSC to be finished.
705 */
706 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
707 NULL);
708
709 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
710
711 return 0;
712 }
713
714
hostapd_wps_cred_cb(void * ctx,const struct wps_credential * cred)715 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
716 {
717 struct hostapd_data *hapd = ctx;
718 return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
719 }
720
721
hostapd_wps_reenable_ap_pin(void * eloop_data,void * user_ctx)722 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
723 {
724 struct hostapd_data *hapd = eloop_data;
725
726 if (hapd->conf->ap_setup_locked)
727 return;
728 if (hapd->ap_pin_failures_consecutive >= 10)
729 return;
730
731 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
732 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
733 hapd->wps->ap_setup_locked = 0;
734 wps_registrar_update_ie(hapd->wps->registrar);
735 }
736
737
wps_pwd_auth_fail(struct hostapd_data * hapd,void * ctx)738 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
739 {
740 struct wps_event_pwd_auth_fail *data = ctx;
741
742 if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
743 return 0;
744
745 /*
746 * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
747 * for some time if this happens multiple times to slow down brute
748 * force attacks.
749 */
750 hapd->ap_pin_failures++;
751 hapd->ap_pin_failures_consecutive++;
752 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
753 "(%u consecutive)",
754 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
755 if (hapd->ap_pin_failures < 3)
756 return 0;
757
758 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
759 hapd->wps->ap_setup_locked = 1;
760
761 wps_registrar_update_ie(hapd->wps->registrar);
762
763 if (!hapd->conf->ap_setup_locked &&
764 hapd->ap_pin_failures_consecutive >= 10) {
765 /*
766 * In indefinite lockdown - disable automatic AP PIN
767 * reenablement.
768 */
769 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
770 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
771 } else if (!hapd->conf->ap_setup_locked) {
772 if (hapd->ap_pin_lockout_time == 0)
773 hapd->ap_pin_lockout_time = 60;
774 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
775 (hapd->ap_pin_failures % 3) == 0)
776 hapd->ap_pin_lockout_time *= 2;
777
778 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
779 hapd->ap_pin_lockout_time);
780 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
781 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
782 hostapd_wps_reenable_ap_pin, hapd,
783 NULL);
784 }
785
786 return 0;
787 }
788
789
hostapd_pwd_auth_fail(struct hostapd_data * hapd,struct wps_event_pwd_auth_fail * data)790 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
791 struct wps_event_pwd_auth_fail *data)
792 {
793 /* Update WPS Status - Authentication Failure */
794 wpa_printf(MSG_DEBUG, "WPS: Authentication failure update");
795 hapd->wps_stats.status = WPS_STATUS_FAILURE;
796 hapd->wps_stats.failure_reason = WPS_EI_AUTH_FAILURE;
797 os_memcpy(hapd->wps_stats.peer_addr, data->peer_macaddr, ETH_ALEN);
798
799 hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
800 }
801
802
wps_ap_pin_success(struct hostapd_data * hapd,void * ctx)803 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
804 {
805 if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
806 return 0;
807
808 if (hapd->ap_pin_failures_consecutive == 0)
809 return 0;
810
811 wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
812 "- total validation failures %u (%u consecutive)",
813 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
814 hapd->ap_pin_failures_consecutive = 0;
815
816 return 0;
817 }
818
819
hostapd_wps_ap_pin_success(struct hostapd_data * hapd)820 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
821 {
822 hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
823 }
824
825
hostapd_wps_event_pbc_overlap(struct hostapd_data * hapd)826 static void hostapd_wps_event_pbc_overlap(struct hostapd_data *hapd)
827 {
828 /* Update WPS Status - PBC Overlap */
829 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_OVERLAP;
830 }
831
832
hostapd_wps_event_pbc_timeout(struct hostapd_data * hapd)833 static void hostapd_wps_event_pbc_timeout(struct hostapd_data *hapd)
834 {
835 /* Update WPS PBC Status:PBC Timeout */
836 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_TIMEOUT;
837 }
838
839
hostapd_wps_event_pbc_active(struct hostapd_data * hapd)840 static void hostapd_wps_event_pbc_active(struct hostapd_data *hapd)
841 {
842 /* Update WPS PBC status - Active */
843 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_ACTIVE;
844 }
845
846
hostapd_wps_event_pbc_disable(struct hostapd_data * hapd)847 static void hostapd_wps_event_pbc_disable(struct hostapd_data *hapd)
848 {
849 /* Update WPS PBC status - Active */
850 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
851 }
852
853
hostapd_wps_event_success(struct hostapd_data * hapd,struct wps_event_success * success)854 static void hostapd_wps_event_success(struct hostapd_data *hapd,
855 struct wps_event_success *success)
856 {
857 /* Update WPS status - Success */
858 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
859 hapd->wps_stats.status = WPS_STATUS_SUCCESS;
860 os_memcpy(hapd->wps_stats.peer_addr, success->peer_macaddr, ETH_ALEN);
861 }
862
863
hostapd_wps_event_fail(struct hostapd_data * hapd,struct wps_event_fail * fail)864 static void hostapd_wps_event_fail(struct hostapd_data *hapd,
865 struct wps_event_fail *fail)
866 {
867 /* Update WPS status - Failure */
868 hapd->wps_stats.status = WPS_STATUS_FAILURE;
869 os_memcpy(hapd->wps_stats.peer_addr, fail->peer_macaddr, ETH_ALEN);
870
871 hapd->wps_stats.failure_reason = fail->error_indication;
872
873 if (fail->error_indication > 0 &&
874 fail->error_indication < NUM_WPS_EI_VALUES) {
875 wpa_msg(hapd->msg_ctx, MSG_INFO,
876 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
877 fail->msg, fail->config_error, fail->error_indication,
878 wps_ei_str(fail->error_indication));
879 } else {
880 wpa_msg(hapd->msg_ctx, MSG_INFO,
881 WPS_EVENT_FAIL "msg=%d config_error=%d",
882 fail->msg, fail->config_error);
883 }
884 }
885
886
hostapd_wps_event_cb(void * ctx,enum wps_event event,union wps_event_data * data)887 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
888 union wps_event_data *data)
889 {
890 struct hostapd_data *hapd = ctx;
891
892 switch (event) {
893 case WPS_EV_M2D:
894 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
895 break;
896 case WPS_EV_FAIL:
897 hostapd_wps_event_fail(hapd, &data->fail);
898 break;
899 case WPS_EV_SUCCESS:
900 hostapd_wps_event_success(hapd, &data->success);
901 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
902 break;
903 case WPS_EV_PWD_AUTH_FAIL:
904 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
905 break;
906 case WPS_EV_PBC_OVERLAP:
907 hostapd_wps_event_pbc_overlap(hapd);
908 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
909 break;
910 case WPS_EV_PBC_TIMEOUT:
911 hostapd_wps_event_pbc_timeout(hapd);
912 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
913 break;
914 case WPS_EV_PBC_ACTIVE:
915 hostapd_wps_event_pbc_active(hapd);
916 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ACTIVE);
917 break;
918 case WPS_EV_PBC_DISABLE:
919 hostapd_wps_event_pbc_disable(hapd);
920 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_DISABLE);
921 break;
922 case WPS_EV_ER_AP_ADD:
923 break;
924 case WPS_EV_ER_AP_REMOVE:
925 break;
926 case WPS_EV_ER_ENROLLEE_ADD:
927 break;
928 case WPS_EV_ER_ENROLLEE_REMOVE:
929 break;
930 case WPS_EV_ER_AP_SETTINGS:
931 break;
932 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
933 break;
934 case WPS_EV_AP_PIN_SUCCESS:
935 hostapd_wps_ap_pin_success(hapd);
936 break;
937 }
938 if (hapd->wps_event_cb)
939 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
940 }
941
942
hostapd_wps_rf_band_cb(void * ctx)943 static int hostapd_wps_rf_band_cb(void *ctx)
944 {
945 struct hostapd_data *hapd = ctx;
946
947 return hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
948 WPS_RF_50GHZ :
949 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ?
950 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
951 }
952
953
hostapd_wps_clear_ies(struct hostapd_data * hapd,int deinit_only)954 static void hostapd_wps_clear_ies(struct hostapd_data *hapd, int deinit_only)
955 {
956 wpabuf_free(hapd->wps_beacon_ie);
957 hapd->wps_beacon_ie = NULL;
958
959 wpabuf_free(hapd->wps_probe_resp_ie);
960 hapd->wps_probe_resp_ie = NULL;
961
962 if (deinit_only) {
963 if (hapd->drv_priv)
964 hostapd_reset_ap_wps_ie(hapd);
965 return;
966 }
967
968 hostapd_set_ap_wps_ie(hapd);
969 }
970
971
get_uuid_cb(struct hostapd_iface * iface,void * ctx)972 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
973 {
974 const u8 **uuid = ctx;
975 size_t j;
976
977 if (iface == NULL)
978 return 0;
979 for (j = 0; j < iface->num_bss; j++) {
980 struct hostapd_data *hapd = iface->bss[j];
981 if (hapd->wps && !hapd->conf->wps_independent &&
982 !is_nil_uuid(hapd->wps->uuid)) {
983 *uuid = hapd->wps->uuid;
984 return 1;
985 }
986 }
987
988 return 0;
989 }
990
991
get_own_uuid(struct hostapd_iface * iface)992 static const u8 * get_own_uuid(struct hostapd_iface *iface)
993 {
994 const u8 *uuid;
995 if (iface->interfaces == NULL ||
996 iface->interfaces->for_each_interface == NULL)
997 return NULL;
998 uuid = NULL;
999 iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
1000 &uuid);
1001 return uuid;
1002 }
1003
1004
count_interface_cb(struct hostapd_iface * iface,void * ctx)1005 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
1006 {
1007 int *count= ctx;
1008 (*count)++;
1009 return 0;
1010 }
1011
1012
interface_count(struct hostapd_iface * iface)1013 static int interface_count(struct hostapd_iface *iface)
1014 {
1015 int count = 0;
1016 if (iface->interfaces == NULL ||
1017 iface->interfaces->for_each_interface == NULL)
1018 return 0;
1019 iface->interfaces->for_each_interface(iface->interfaces,
1020 count_interface_cb, &count);
1021 return count;
1022 }
1023
1024
hostapd_wps_set_vendor_ext(struct hostapd_data * hapd,struct wps_context * wps)1025 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
1026 struct wps_context *wps)
1027 {
1028 int i;
1029
1030 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
1031 wpabuf_free(wps->dev.vendor_ext[i]);
1032 wps->dev.vendor_ext[i] = NULL;
1033
1034 if (hapd->conf->wps_vendor_ext[i] == NULL)
1035 continue;
1036
1037 wps->dev.vendor_ext[i] =
1038 wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
1039 if (wps->dev.vendor_ext[i] == NULL) {
1040 while (--i >= 0)
1041 wpabuf_free(wps->dev.vendor_ext[i]);
1042 return -1;
1043 }
1044 }
1045
1046 return 0;
1047 }
1048
1049
hostapd_wps_set_application_ext(struct hostapd_data * hapd,struct wps_context * wps)1050 static int hostapd_wps_set_application_ext(struct hostapd_data *hapd,
1051 struct wps_context *wps)
1052 {
1053 wpabuf_free(wps->dev.application_ext);
1054
1055 if (!hapd->conf->wps_application_ext) {
1056 wps->dev.application_ext = NULL;
1057 return 0;
1058 }
1059
1060 wps->dev.application_ext = wpabuf_dup(hapd->conf->wps_application_ext);
1061 return wps->dev.application_ext ? 0 : -1;
1062 }
1063
1064
hostapd_free_wps(struct wps_context * wps)1065 static void hostapd_free_wps(struct wps_context *wps)
1066 {
1067 int i;
1068
1069 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
1070 wpabuf_free(wps->dev.vendor_ext[i]);
1071 wps_device_data_free(&wps->dev);
1072 os_free(wps->network_key);
1073 hostapd_wps_nfc_clear(wps);
1074 wpabuf_free(wps->dh_pubkey);
1075 wpabuf_free(wps->dh_privkey);
1076 os_free(wps);
1077 }
1078
1079
hostapd_init_wps(struct hostapd_data * hapd,struct hostapd_bss_config * conf)1080 int hostapd_init_wps(struct hostapd_data *hapd,
1081 struct hostapd_bss_config *conf)
1082 {
1083 struct wps_context *wps;
1084 struct wps_registrar_config cfg;
1085 u8 *multi_ap_netw_key = NULL;
1086
1087 if (conf->wps_state == 0) {
1088 hostapd_wps_clear_ies(hapd, 0);
1089 return 0;
1090 }
1091
1092 wps = os_zalloc(sizeof(*wps));
1093 if (wps == NULL)
1094 return -1;
1095
1096 wps->cred_cb = hostapd_wps_cred_cb;
1097 wps->event_cb = hostapd_wps_event_cb;
1098 wps->rf_band_cb = hostapd_wps_rf_band_cb;
1099 wps->cb_ctx = hapd;
1100
1101 os_memset(&cfg, 0, sizeof(cfg));
1102 wps->wps_state = hapd->conf->wps_state;
1103 wps->ap_setup_locked = hapd->conf->ap_setup_locked;
1104 if (is_nil_uuid(hapd->conf->uuid)) {
1105 const u8 *uuid;
1106 uuid = get_own_uuid(hapd->iface);
1107 if (uuid && !conf->wps_independent) {
1108 os_memcpy(wps->uuid, uuid, UUID_LEN);
1109 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
1110 "interface", wps->uuid, UUID_LEN);
1111 } else {
1112 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
1113 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1114 "address", wps->uuid, UUID_LEN);
1115 }
1116 } else {
1117 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
1118 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
1119 wps->uuid, UUID_LEN);
1120 }
1121 wps->ssid_len = hapd->conf->ssid.ssid_len;
1122 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
1123 wps->ap = 1;
1124 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
1125 wps->dev.device_name = hapd->conf->device_name ?
1126 os_strdup(hapd->conf->device_name) : NULL;
1127 wps->dev.manufacturer = hapd->conf->manufacturer ?
1128 os_strdup(hapd->conf->manufacturer) : NULL;
1129 wps->dev.model_name = hapd->conf->model_name ?
1130 os_strdup(hapd->conf->model_name) : NULL;
1131 wps->dev.model_number = hapd->conf->model_number ?
1132 os_strdup(hapd->conf->model_number) : NULL;
1133 wps->dev.serial_number = hapd->conf->serial_number ?
1134 os_strdup(hapd->conf->serial_number) : NULL;
1135 wps->config_methods =
1136 wps_config_methods_str2bin(hapd->conf->config_methods);
1137 if ((wps->config_methods &
1138 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1139 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1140 wpa_printf(MSG_INFO, "WPS: Converting display to "
1141 "virtual_display for WPS 2.0 compliance");
1142 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1143 }
1144 if ((wps->config_methods &
1145 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1146 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1147 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1148 "virtual_push_button for WPS 2.0 compliance");
1149 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1150 }
1151 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
1152 WPS_DEV_TYPE_LEN);
1153
1154 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0 ||
1155 hostapd_wps_set_application_ext(hapd, wps) < 0)
1156 goto fail;
1157
1158 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
1159
1160 if (conf->wps_rf_bands) {
1161 wps->dev.rf_bands = conf->wps_rf_bands;
1162 } else {
1163 wps->dev.rf_bands =
1164 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
1165 WPS_RF_50GHZ :
1166 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ?
1167 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
1168 }
1169
1170 if (conf->wpa & WPA_PROTO_RSN) {
1171 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1172 wps->auth_types |= WPS_AUTH_WPA2PSK;
1173 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1174 wps->auth_types |= WPS_AUTH_WPA2;
1175 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE)
1176 wps->auth_types |= WPS_AUTH_WPA2PSK;
1177
1178 if (conf->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1179 WPA_CIPHER_CCMP_256 |
1180 WPA_CIPHER_GCMP_256)) {
1181 wps->encr_types |= WPS_ENCR_AES;
1182 wps->encr_types_rsn |= WPS_ENCR_AES;
1183 }
1184 if (conf->rsn_pairwise & WPA_CIPHER_TKIP) {
1185 #ifdef CONFIG_NO_TKIP
1186 wpa_printf(MSG_INFO, "WPS: TKIP not supported");
1187 goto fail;
1188 #else /* CONFIG_NO_TKIP */
1189 wps->encr_types |= WPS_ENCR_TKIP;
1190 wps->encr_types_rsn |= WPS_ENCR_TKIP;
1191 #endif /* CONFIG_NO_TKIP */
1192 }
1193 }
1194
1195 if (conf->wpa & WPA_PROTO_WPA) {
1196 #ifdef CONFIG_NO_TKIP
1197 if (!(conf->wpa & WPA_PROTO_RSN)) {
1198 wpa_printf(MSG_INFO, "WPS: WPA(v1) not supported");
1199 goto fail;
1200 }
1201 conf->wpa &= ~WPA_PROTO_WPA;
1202 #else /* CONFIG_NO_TKIP */
1203 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1204 wps->auth_types |= WPS_AUTH_WPAPSK;
1205 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1206 wps->auth_types |= WPS_AUTH_WPA;
1207
1208 if (conf->wpa_pairwise & WPA_CIPHER_CCMP) {
1209 wps->encr_types |= WPS_ENCR_AES;
1210 wps->encr_types_wpa |= WPS_ENCR_AES;
1211 }
1212 if (conf->wpa_pairwise & WPA_CIPHER_TKIP) {
1213 wps->encr_types |= WPS_ENCR_TKIP;
1214 wps->encr_types_wpa |= WPS_ENCR_TKIP;
1215 }
1216 #endif /* CONFIG_NO_TKIP */
1217 }
1218
1219 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
1220 wps->encr_types |= WPS_ENCR_NONE;
1221 wps->auth_types |= WPS_AUTH_OPEN;
1222 }
1223
1224 if (conf->ssid.wpa_psk_file) {
1225 /* Use per-device PSKs */
1226 } else if (conf->ssid.wpa_passphrase) {
1227 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1228 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1229 } else if (conf->ssid.wpa_psk) {
1230 wps->network_key = os_malloc(2 * PMK_LEN + 1);
1231 if (wps->network_key == NULL)
1232 goto fail;
1233 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1234 conf->ssid.wpa_psk->psk, PMK_LEN);
1235 wps->network_key_len = 2 * PMK_LEN;
1236 #ifdef CONFIG_WEP
1237 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1238 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
1239 if (wps->network_key == NULL)
1240 goto fail;
1241 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1242 conf->ssid.wep.len[0]);
1243 wps->network_key_len = conf->ssid.wep.len[0];
1244 #endif /* CONFIG_WEP */
1245 }
1246
1247 if (conf->ssid.wpa_psk) {
1248 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1249 wps->psk_set = 1;
1250 }
1251
1252 wps->ap_auth_type = wps->auth_types;
1253 wps->ap_encr_type = wps->encr_types;
1254 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
1255 /* Override parameters to enable security by default */
1256 #ifdef CONFIG_NO_TKIP
1257 wps->auth_types = WPS_AUTH_WPA2PSK;
1258 wps->encr_types = WPS_ENCR_AES;
1259 wps->encr_types_rsn = WPS_ENCR_AES;
1260 wps->encr_types_wpa = WPS_ENCR_AES;
1261 #else /* CONFIG_NO_TKIP */
1262 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1263 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1264 wps->encr_types_rsn = WPS_ENCR_AES | WPS_ENCR_TKIP;
1265 wps->encr_types_wpa = WPS_ENCR_AES | WPS_ENCR_TKIP;
1266 #endif /* CONFIG_NO_TKIP */
1267 }
1268
1269 if ((hapd->conf->multi_ap & FRONTHAUL_BSS) &&
1270 hapd->conf->multi_ap_backhaul_ssid.ssid_len) {
1271 cfg.multi_ap_backhaul_ssid_len =
1272 hapd->conf->multi_ap_backhaul_ssid.ssid_len;
1273 cfg.multi_ap_backhaul_ssid =
1274 hapd->conf->multi_ap_backhaul_ssid.ssid;
1275
1276 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) {
1277 cfg.multi_ap_backhaul_network_key = (const u8 *)
1278 conf->multi_ap_backhaul_ssid.wpa_passphrase;
1279 cfg.multi_ap_backhaul_network_key_len =
1280 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase);
1281 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) {
1282 multi_ap_netw_key = os_malloc(2 * PMK_LEN + 1);
1283 if (!multi_ap_netw_key)
1284 goto fail;
1285 wpa_snprintf_hex((char *) multi_ap_netw_key,
1286 2 * PMK_LEN + 1,
1287 conf->multi_ap_backhaul_ssid.wpa_psk->psk,
1288 PMK_LEN);
1289 cfg.multi_ap_backhaul_network_key = multi_ap_netw_key;
1290 cfg.multi_ap_backhaul_network_key_len = 2 * PMK_LEN;
1291 }
1292 }
1293
1294 wps->ap_settings = conf->ap_settings;
1295 wps->ap_settings_len = conf->ap_settings_len;
1296
1297 cfg.new_psk_cb = hostapd_wps_new_psk_cb;
1298 cfg.set_ie_cb = hostapd_wps_set_ie_cb;
1299 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
1300 cfg.reg_success_cb = hostapd_wps_reg_success_cb;
1301 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
1302 cfg.lookup_pskfile_cb = hostapd_wps_lookup_pskfile_cb;
1303 cfg.cb_ctx = hapd;
1304 cfg.skip_cred_build = conf->skip_cred_build;
1305 cfg.extra_cred = conf->extra_cred;
1306 cfg.extra_cred_len = conf->extra_cred_len;
1307 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
1308 conf->skip_cred_build;
1309 cfg.dualband = interface_count(hapd->iface) > 1;
1310 if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
1311 (WPS_RF_50GHZ | WPS_RF_24GHZ))
1312 cfg.dualband = 1;
1313 if (cfg.dualband)
1314 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
1315 cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk;
1316
1317 wps->registrar = wps_registrar_init(wps, &cfg);
1318 if (wps->registrar == NULL) {
1319 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
1320 goto fail;
1321 }
1322
1323 #ifdef CONFIG_WPS_UPNP
1324 wps->friendly_name = hapd->conf->friendly_name;
1325 wps->manufacturer_url = hapd->conf->manufacturer_url;
1326 wps->model_description = hapd->conf->model_description;
1327 wps->model_url = hapd->conf->model_url;
1328 wps->upc = hapd->conf->upc;
1329 #endif /* CONFIG_WPS_UPNP */
1330
1331 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
1332
1333 #ifdef CONFIG_P2P
1334 if ((hapd->conf->p2p & P2P_ENABLED) &&
1335 is_6ghz_op_class(hapd->iconf->op_class))
1336 wps->use_passphrase = true;
1337 #endif /* CONFIG_P2P */
1338 hapd->wps = wps;
1339 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN);
1340
1341 return 0;
1342
1343 fail:
1344 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN);
1345 hostapd_free_wps(wps);
1346 return -1;
1347 }
1348
1349
hostapd_init_wps_complete(struct hostapd_data * hapd)1350 int hostapd_init_wps_complete(struct hostapd_data *hapd)
1351 {
1352 struct wps_context *wps = hapd->wps;
1353
1354 if (wps == NULL)
1355 return 0;
1356
1357 #ifdef CONFIG_WPS_UPNP
1358 if (hostapd_wps_upnp_init(hapd, wps) < 0) {
1359 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
1360 wps_registrar_deinit(wps->registrar);
1361 hostapd_free_wps(wps);
1362 hapd->wps = NULL;
1363 return -1;
1364 }
1365 #endif /* CONFIG_WPS_UPNP */
1366
1367 return 0;
1368 }
1369
1370
hostapd_wps_nfc_clear(struct wps_context * wps)1371 static void hostapd_wps_nfc_clear(struct wps_context *wps)
1372 {
1373 #ifdef CONFIG_WPS_NFC
1374 wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps);
1375 wps->ap_nfc_dev_pw_id = 0;
1376 wpabuf_free(wps->ap_nfc_dh_pubkey);
1377 wps->ap_nfc_dh_pubkey = NULL;
1378 wpabuf_free(wps->ap_nfc_dh_privkey);
1379 wps->ap_nfc_dh_privkey = NULL;
1380 wpabuf_free(wps->ap_nfc_dev_pw);
1381 wps->ap_nfc_dev_pw = NULL;
1382 #endif /* CONFIG_WPS_NFC */
1383 }
1384
1385
hostapd_wps_update_multi_ap(struct hostapd_data * hapd,struct wps_registrar * reg)1386 static int hostapd_wps_update_multi_ap(struct hostapd_data *hapd,
1387 struct wps_registrar *reg)
1388 {
1389 struct hostapd_bss_config *conf = hapd->conf;
1390 u8 *multi_ap_backhaul_network_key = NULL;
1391 size_t multi_ap_backhaul_network_key_len = 0;
1392 int ret;
1393
1394 if (!(conf->multi_ap & FRONTHAUL_BSS) ||
1395 !conf->multi_ap_backhaul_ssid.ssid_len)
1396 return 0;
1397
1398 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) {
1399 multi_ap_backhaul_network_key =
1400 (u8 *) os_strdup(
1401 conf->multi_ap_backhaul_ssid.wpa_passphrase);
1402 if (!multi_ap_backhaul_network_key)
1403 return -1;
1404 multi_ap_backhaul_network_key_len =
1405 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase);
1406 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) {
1407 multi_ap_backhaul_network_key = os_malloc(2 * PMK_LEN + 1);
1408 if (!multi_ap_backhaul_network_key)
1409 return -1;
1410 wpa_snprintf_hex((char *) multi_ap_backhaul_network_key,
1411 2 * PMK_LEN + 1,
1412 conf->multi_ap_backhaul_ssid.wpa_psk->psk,
1413 PMK_LEN);
1414 multi_ap_backhaul_network_key_len = 2 * PMK_LEN;
1415 }
1416
1417 ret = wps_registrar_update_multi_ap(
1418 reg, conf->multi_ap_backhaul_ssid.ssid,
1419 conf->multi_ap_backhaul_ssid.ssid_len,
1420 multi_ap_backhaul_network_key,
1421 multi_ap_backhaul_network_key_len);
1422 os_free(multi_ap_backhaul_network_key);
1423
1424 return ret;
1425 }
1426
1427
hostapd_deinit_wps(struct hostapd_data * hapd)1428 void hostapd_deinit_wps(struct hostapd_data *hapd)
1429 {
1430 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
1431 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1432 eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL);
1433 if (hapd->wps == NULL) {
1434 hostapd_wps_clear_ies(hapd, 1);
1435 return;
1436 }
1437 #ifdef CONFIG_WPS_UPNP
1438 hostapd_wps_upnp_deinit(hapd);
1439 #endif /* CONFIG_WPS_UPNP */
1440 wps_registrar_deinit(hapd->wps->registrar);
1441 wps_free_pending_msgs(hapd->wps->upnp_msgs);
1442 hostapd_free_wps(hapd->wps);
1443 hapd->wps = NULL;
1444 hostapd_wps_clear_ies(hapd, 1);
1445 }
1446
1447
hostapd_update_wps(struct hostapd_data * hapd)1448 void hostapd_update_wps(struct hostapd_data *hapd)
1449 {
1450 struct wps_context *wps = hapd->wps;
1451 struct hostapd_bss_config *conf = hapd->conf;
1452
1453 if (!wps)
1454 return;
1455
1456 #ifdef CONFIG_WPS_UPNP
1457 wps->friendly_name = conf->friendly_name;
1458 wps->manufacturer_url = conf->manufacturer_url;
1459 wps->model_description = conf->model_description;
1460 wps->model_url = conf->model_url;
1461 wps->upc = conf->upc;
1462 #endif /* CONFIG_WPS_UPNP */
1463
1464 os_memcpy(wps->ssid, conf->ssid.ssid, conf->ssid.ssid_len);
1465 wps->ssid_len = conf->ssid.ssid_len;
1466
1467 /* Clear WPS settings, then fill them again */
1468 os_free(wps->network_key);
1469 wps->network_key = NULL;
1470 wps->network_key_len = 0;
1471 wps->psk_set = 0;
1472 if (conf->ssid.wpa_psk_file) {
1473 /* Use per-device PSKs */
1474 } else if (conf->ssid.wpa_passphrase) {
1475 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1476 if (!wps->network_key)
1477 return;
1478 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1479 } else if (conf->ssid.wpa_psk) {
1480 wps->network_key = os_malloc(2 * PMK_LEN + 1);
1481 if (!wps->network_key)
1482 return;
1483 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1484 conf->ssid.wpa_psk->psk, PMK_LEN);
1485 wps->network_key_len = 2 * PMK_LEN;
1486 #ifdef CONFIG_WEP
1487 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1488 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
1489 if (!wps->network_key)
1490 return;
1491 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1492 conf->ssid.wep.len[0]);
1493 wps->network_key_len = conf->ssid.wep.len[0];
1494 #endif /* CONFIG_WEP */
1495 }
1496
1497 if (conf->ssid.wpa_psk) {
1498 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1499 wps->psk_set = 1;
1500 }
1501
1502 hostapd_wps_update_multi_ap(hapd, wps->registrar);
1503
1504 hostapd_wps_set_vendor_ext(hapd, wps);
1505 hostapd_wps_set_application_ext(hapd, wps);
1506
1507 if (conf->wps_state)
1508 wps_registrar_update_ie(wps->registrar);
1509 else
1510 hostapd_deinit_wps(hapd);
1511 }
1512
1513
1514 struct wps_add_pin_data {
1515 const u8 *addr;
1516 const u8 *uuid;
1517 const u8 *pin;
1518 size_t pin_len;
1519 int timeout;
1520 int added;
1521 };
1522
1523
wps_add_pin(struct hostapd_data * hapd,void * ctx)1524 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1525 {
1526 struct wps_add_pin_data *data = ctx;
1527 int ret;
1528
1529 if (hapd->wps == NULL)
1530 return 0;
1531 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1532 data->uuid, data->pin, data->pin_len,
1533 data->timeout);
1534 if (ret == 0)
1535 data->added++;
1536 return ret;
1537 }
1538
1539
hostapd_wps_add_pin(struct hostapd_data * hapd,const u8 * addr,const char * uuid,const char * pin,int timeout)1540 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
1541 const char *uuid, const char *pin, int timeout)
1542 {
1543 u8 u[UUID_LEN];
1544 struct wps_add_pin_data data;
1545
1546 data.addr = addr;
1547 data.uuid = u;
1548 data.pin = (const u8 *) pin;
1549 data.pin_len = os_strlen(pin);
1550 data.timeout = timeout;
1551 data.added = 0;
1552
1553 if (os_strcmp(uuid, "any") == 0)
1554 data.uuid = NULL;
1555 else {
1556 if (uuid_str2bin(uuid, u))
1557 return -1;
1558 data.uuid = u;
1559 }
1560 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1561 return -1;
1562 return data.added ? 0 : -1;
1563 }
1564
1565
1566 struct wps_button_pushed_ctx {
1567 const u8 *p2p_dev_addr;
1568 unsigned int count;
1569 };
1570
wps_button_pushed(struct hostapd_data * hapd,void * ctx)1571 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1572 {
1573 struct wps_button_pushed_ctx *data = ctx;
1574
1575 if (hapd->wps) {
1576 data->count++;
1577 return wps_registrar_button_pushed(hapd->wps->registrar,
1578 data->p2p_dev_addr);
1579 }
1580
1581 return 0;
1582 }
1583
1584
hostapd_wps_button_pushed(struct hostapd_data * hapd,const u8 * p2p_dev_addr)1585 int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1586 const u8 *p2p_dev_addr)
1587 {
1588 struct wps_button_pushed_ctx ctx;
1589 int ret;
1590
1591 os_memset(&ctx, 0, sizeof(ctx));
1592 ctx.p2p_dev_addr = p2p_dev_addr;
1593 ret = hostapd_wps_for_each(hapd, wps_button_pushed, &ctx);
1594 if (ret == 0 && !ctx.count)
1595 ret = -1;
1596 return ret;
1597 }
1598
1599
1600 struct wps_cancel_ctx {
1601 unsigned int count;
1602 };
1603
wps_cancel(struct hostapd_data * hapd,void * ctx)1604 static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1605 {
1606 struct wps_cancel_ctx *data = ctx;
1607
1608 if (hapd->wps) {
1609 data->count++;
1610 wps_registrar_wps_cancel(hapd->wps->registrar);
1611 ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1612 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_CANCEL);
1613 }
1614
1615 return 0;
1616 }
1617
1618
hostapd_wps_cancel(struct hostapd_data * hapd)1619 int hostapd_wps_cancel(struct hostapd_data *hapd)
1620 {
1621 struct wps_cancel_ctx ctx;
1622 int ret;
1623
1624 os_memset(&ctx, 0, sizeof(ctx));
1625 ret = hostapd_wps_for_each(hapd, wps_cancel, &ctx);
1626 if (ret == 0 && !ctx.count)
1627 ret = -1;
1628 return ret;
1629 }
1630
1631
hostapd_wps_probe_req_rx(void * ctx,const u8 * addr,const u8 * da,const u8 * bssid,const u8 * ie,size_t ie_len,int ssi_signal)1632 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1633 const u8 *bssid,
1634 const u8 *ie, size_t ie_len,
1635 int ssi_signal)
1636 {
1637 struct hostapd_data *hapd = ctx;
1638 struct wpabuf *wps_ie;
1639 struct ieee802_11_elems elems;
1640
1641 if (hapd->wps == NULL)
1642 return 0;
1643
1644 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1645 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1646 MACSTR, MAC2STR(addr));
1647 return 0;
1648 }
1649
1650 if (elems.ssid && elems.ssid_len > 0 &&
1651 (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1652 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1653 0))
1654 return 0; /* Not for us */
1655
1656 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1657 if (wps_ie == NULL)
1658 return 0;
1659 if (wps_validate_probe_req(wps_ie, addr) < 0) {
1660 wpabuf_free(wps_ie);
1661 return 0;
1662 }
1663
1664 if (wpabuf_len(wps_ie) > 0) {
1665 int p2p_wildcard = 0;
1666 #ifdef CONFIG_P2P
1667 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1668 os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1669 P2P_WILDCARD_SSID_LEN) == 0)
1670 p2p_wildcard = 1;
1671 #endif /* CONFIG_P2P */
1672 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1673 p2p_wildcard);
1674 #ifdef CONFIG_WPS_UPNP
1675 /* FIX: what exactly should be included in the WLANEvent?
1676 * WPS attributes? Full ProbeReq frame? */
1677 if (!p2p_wildcard)
1678 upnp_wps_device_send_wlan_event(
1679 hapd->wps_upnp, addr,
1680 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1681 #endif /* CONFIG_WPS_UPNP */
1682 }
1683
1684 wpabuf_free(wps_ie);
1685
1686 return 0;
1687 }
1688
1689
1690 #ifdef CONFIG_WPS_UPNP
1691
hostapd_rx_req_put_wlan_response(void * priv,enum upnp_wps_wlanevent_type ev_type,const u8 * mac_addr,const struct wpabuf * msg,enum wps_msg_type msg_type)1692 static int hostapd_rx_req_put_wlan_response(
1693 void *priv, enum upnp_wps_wlanevent_type ev_type,
1694 const u8 *mac_addr, const struct wpabuf *msg,
1695 enum wps_msg_type msg_type)
1696 {
1697 struct hostapd_data *hapd = priv;
1698 struct sta_info *sta;
1699 struct upnp_pending_message *p;
1700
1701 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1702 MACSTR, ev_type, MAC2STR(mac_addr));
1703 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1704 wpabuf_head(msg), wpabuf_len(msg));
1705 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1706 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1707 "PutWLANResponse WLANEventType %d", ev_type);
1708 return -1;
1709 }
1710
1711 /*
1712 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1713 * server implementation for delivery to the peer.
1714 */
1715
1716 sta = ap_get_sta(hapd, mac_addr);
1717 #ifndef CONFIG_WPS_STRICT
1718 if (!sta) {
1719 /*
1720 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1721 * Pick STA that is in an ongoing WPS registration without
1722 * checking the MAC address.
1723 */
1724 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1725 "on NewWLANEventMAC; try wildcard match");
1726 for (sta = hapd->sta_list; sta; sta = sta->next) {
1727 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1728 break;
1729 }
1730 }
1731 #endif /* CONFIG_WPS_STRICT */
1732
1733 if (!sta || !(sta->flags & WLAN_STA_WPS)) {
1734 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1735 return 0;
1736 }
1737
1738 if (!sta->eapol_sm) {
1739 /*
1740 * This can happen, e.g., if an ER sends an extra message after
1741 * the station has disassociated (but not fully
1742 * deauthenticated).
1743 */
1744 wpa_printf(MSG_DEBUG, "WPS UPnP: Matching STA did not have EAPOL state machine initialized");
1745 return 0;
1746 }
1747
1748 p = os_zalloc(sizeof(*p));
1749 if (p == NULL)
1750 return -1;
1751 os_memcpy(p->addr, sta->addr, ETH_ALEN);
1752 p->msg = wpabuf_dup(msg);
1753 p->type = msg_type;
1754 p->next = hapd->wps->upnp_msgs;
1755 hapd->wps->upnp_msgs = p;
1756
1757 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1758 }
1759
1760
hostapd_wps_upnp_init(struct hostapd_data * hapd,struct wps_context * wps)1761 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1762 struct wps_context *wps)
1763 {
1764 struct upnp_wps_device_ctx *ctx;
1765
1766 if (!hapd->conf->upnp_iface)
1767 return 0;
1768 ctx = os_zalloc(sizeof(*ctx));
1769 if (ctx == NULL)
1770 return -1;
1771
1772 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1773 if (hapd->conf->ap_pin)
1774 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1775
1776 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1777 hapd->conf->upnp_iface);
1778 if (hapd->wps_upnp == NULL)
1779 return -1;
1780 wps->wps_upnp = hapd->wps_upnp;
1781
1782 return 0;
1783 }
1784
1785
hostapd_wps_upnp_deinit(struct hostapd_data * hapd)1786 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1787 {
1788 upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1789 }
1790
1791 #endif /* CONFIG_WPS_UPNP */
1792
1793
hostapd_wps_get_mib_sta(struct hostapd_data * hapd,const u8 * addr,char * buf,size_t buflen)1794 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1795 char *buf, size_t buflen)
1796 {
1797 if (hapd->wps == NULL)
1798 return 0;
1799 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1800 }
1801
1802
hostapd_wps_ap_pin_timeout(void * eloop_data,void * user_ctx)1803 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1804 {
1805 struct hostapd_data *hapd = eloop_data;
1806 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1807 hostapd_wps_ap_pin_disable(hapd);
1808 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
1809 }
1810
1811
hostapd_wps_ap_pin_enable(struct hostapd_data * hapd,int timeout)1812 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1813 {
1814 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1815 hapd->ap_pin_failures = 0;
1816 hapd->ap_pin_failures_consecutive = 0;
1817 hapd->conf->ap_setup_locked = 0;
1818 if (hapd->wps->ap_setup_locked) {
1819 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1820 hapd->wps->ap_setup_locked = 0;
1821 wps_registrar_update_ie(hapd->wps->registrar);
1822 }
1823 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1824 if (timeout > 0)
1825 eloop_register_timeout(timeout, 0,
1826 hostapd_wps_ap_pin_timeout, hapd, NULL);
1827 }
1828
1829
wps_ap_pin_disable(struct hostapd_data * hapd,void * ctx)1830 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1831 {
1832 os_free(hapd->conf->ap_pin);
1833 hapd->conf->ap_pin = NULL;
1834 #ifdef CONFIG_WPS_UPNP
1835 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1836 #endif /* CONFIG_WPS_UPNP */
1837 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1838 return 0;
1839 }
1840
1841
hostapd_wps_ap_pin_disable(struct hostapd_data * hapd)1842 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1843 {
1844 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1845 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1846 }
1847
1848
1849 struct wps_ap_pin_data {
1850 char pin_txt[9];
1851 int timeout;
1852 };
1853
1854
wps_ap_pin_set(struct hostapd_data * hapd,void * ctx)1855 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1856 {
1857 struct wps_ap_pin_data *data = ctx;
1858
1859 if (!hapd->wps)
1860 return 0;
1861
1862 os_free(hapd->conf->ap_pin);
1863 hapd->conf->ap_pin = os_strdup(data->pin_txt);
1864 #ifdef CONFIG_WPS_UPNP
1865 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1866 #endif /* CONFIG_WPS_UPNP */
1867 hostapd_wps_ap_pin_enable(hapd, data->timeout);
1868 return 0;
1869 }
1870
1871
hostapd_wps_ap_pin_random(struct hostapd_data * hapd,int timeout)1872 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1873 {
1874 unsigned int pin;
1875 struct wps_ap_pin_data data;
1876
1877 if (wps_generate_pin(&pin) < 0)
1878 return NULL;
1879 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
1880 data.timeout = timeout;
1881 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1882 return hapd->conf->ap_pin;
1883 }
1884
1885
hostapd_wps_ap_pin_get(struct hostapd_data * hapd)1886 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1887 {
1888 return hapd->conf->ap_pin;
1889 }
1890
1891
hostapd_wps_ap_pin_set(struct hostapd_data * hapd,const char * pin,int timeout)1892 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1893 int timeout)
1894 {
1895 struct wps_ap_pin_data data;
1896 int ret;
1897
1898 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1899 if (os_snprintf_error(sizeof(data.pin_txt), ret))
1900 return -1;
1901 data.timeout = timeout;
1902 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1903 }
1904
1905
wps_update_ie(struct hostapd_data * hapd,void * ctx)1906 static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1907 {
1908 if (hapd->wps)
1909 wps_registrar_update_ie(hapd->wps->registrar);
1910 return 0;
1911 }
1912
1913
hostapd_wps_update_ie(struct hostapd_data * hapd)1914 void hostapd_wps_update_ie(struct hostapd_data *hapd)
1915 {
1916 hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1917 }
1918
1919
hostapd_wps_config_ap(struct hostapd_data * hapd,const char * ssid,const char * auth,const char * encr,const char * key)1920 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1921 const char *auth, const char *encr, const char *key)
1922 {
1923 struct wps_credential cred;
1924 size_t len;
1925
1926 os_memset(&cred, 0, sizeof(cred));
1927
1928 len = os_strlen(ssid);
1929 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1930 hexstr2bin(ssid, cred.ssid, len / 2))
1931 return -1;
1932 cred.ssid_len = len / 2;
1933
1934 if (os_strncmp(auth, "OPEN", 4) == 0)
1935 cred.auth_type = WPS_AUTH_OPEN;
1936 #ifndef CONFIG_NO_TKIP
1937 else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1938 cred.auth_type = WPS_AUTH_WPAPSK;
1939 #endif /* CONFIG_NO_TKIP */
1940 else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1941 cred.auth_type = WPS_AUTH_WPA2PSK;
1942 else
1943 return -1;
1944
1945 if (encr) {
1946 if (os_strncmp(encr, "NONE", 4) == 0)
1947 cred.encr_type = WPS_ENCR_NONE;
1948 #ifndef CONFIG_NO_TKIP
1949 else if (os_strncmp(encr, "TKIP", 4) == 0)
1950 cred.encr_type = WPS_ENCR_TKIP;
1951 #endif /* CONFIG_NO_TKIP */
1952 else if (os_strncmp(encr, "CCMP", 4) == 0)
1953 cred.encr_type = WPS_ENCR_AES;
1954 else
1955 return -1;
1956 } else
1957 cred.encr_type = WPS_ENCR_NONE;
1958
1959 if (key) {
1960 len = os_strlen(key);
1961 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1962 hexstr2bin(key, cred.key, len / 2))
1963 return -1;
1964 cred.key_len = len / 2;
1965 }
1966
1967 if (!hapd->wps) {
1968 wpa_printf(MSG_ERROR, "WPS: WPS config does not exist");
1969 return -1;
1970 }
1971
1972 return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1973 }
1974
1975
1976 #ifdef CONFIG_WPS_NFC
1977
1978 struct wps_nfc_password_token_data {
1979 const u8 *oob_dev_pw;
1980 size_t oob_dev_pw_len;
1981 int added;
1982 };
1983
1984
wps_add_nfc_password_token(struct hostapd_data * hapd,void * ctx)1985 static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
1986 {
1987 struct wps_nfc_password_token_data *data = ctx;
1988 int ret;
1989
1990 if (hapd->wps == NULL)
1991 return 0;
1992 ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
1993 data->oob_dev_pw,
1994 data->oob_dev_pw_len);
1995 if (ret == 0)
1996 data->added++;
1997 return ret;
1998 }
1999
2000
hostapd_wps_add_nfc_password_token(struct hostapd_data * hapd,struct wps_parse_attr * attr)2001 static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
2002 struct wps_parse_attr *attr)
2003 {
2004 struct wps_nfc_password_token_data data;
2005
2006 data.oob_dev_pw = attr->oob_dev_password;
2007 data.oob_dev_pw_len = attr->oob_dev_password_len;
2008 data.added = 0;
2009 if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
2010 return -1;
2011 return data.added ? 0 : -1;
2012 }
2013
2014
hostapd_wps_nfc_tag_process(struct hostapd_data * hapd,const struct wpabuf * wps)2015 static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
2016 const struct wpabuf *wps)
2017 {
2018 struct wps_parse_attr attr;
2019
2020 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2021
2022 if (wps_parse_msg(wps, &attr)) {
2023 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2024 return -1;
2025 }
2026
2027 if (attr.oob_dev_password)
2028 return hostapd_wps_add_nfc_password_token(hapd, &attr);
2029
2030 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2031 return -1;
2032 }
2033
2034
hostapd_wps_nfc_tag_read(struct hostapd_data * hapd,const struct wpabuf * data)2035 int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
2036 const struct wpabuf *data)
2037 {
2038 const struct wpabuf *wps = data;
2039 struct wpabuf *tmp = NULL;
2040 int ret;
2041
2042 if (wpabuf_len(data) < 4)
2043 return -1;
2044
2045 if (*wpabuf_head_u8(data) != 0x10) {
2046 /* Assume this contains full NDEF record */
2047 tmp = ndef_parse_wifi(data);
2048 if (tmp == NULL) {
2049 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2050 return -1;
2051 }
2052 wps = tmp;
2053 }
2054
2055 ret = hostapd_wps_nfc_tag_process(hapd, wps);
2056 wpabuf_free(tmp);
2057 return ret;
2058 }
2059
2060
hostapd_wps_nfc_config_token(struct hostapd_data * hapd,int ndef)2061 struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
2062 int ndef)
2063 {
2064 struct wpabuf *ret;
2065
2066 if (hapd->wps == NULL)
2067 return NULL;
2068
2069 ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd),
2070 hapd->iconf->channel);
2071 if (ndef && ret) {
2072 struct wpabuf *tmp;
2073 tmp = ndef_build_wifi(ret);
2074 wpabuf_free(ret);
2075 if (tmp == NULL)
2076 return NULL;
2077 ret = tmp;
2078 }
2079
2080 return ret;
2081 }
2082
2083
hostapd_wps_nfc_hs_cr(struct hostapd_data * hapd,int ndef)2084 struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
2085 {
2086 struct wpabuf *ret;
2087
2088 if (hapd->wps == NULL)
2089 return NULL;
2090
2091 if (hapd->conf->wps_nfc_dh_pubkey == NULL) {
2092 struct wps_context *wps = hapd->wps;
2093 if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey,
2094 &hapd->conf->wps_nfc_dh_privkey) < 0)
2095 return NULL;
2096 hostapd_wps_nfc_clear(wps);
2097 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
2098 wps->ap_nfc_dh_pubkey =
2099 wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
2100 wps->ap_nfc_dh_privkey =
2101 wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
2102 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
2103 hostapd_wps_nfc_clear(wps);
2104 return NULL;
2105 }
2106 }
2107
2108 ret = wps_build_nfc_handover_sel(hapd->wps,
2109 hapd->conf->wps_nfc_dh_pubkey,
2110 hapd->own_addr, hapd->iface->freq);
2111
2112 if (ndef && ret) {
2113 struct wpabuf *tmp;
2114 tmp = ndef_build_wifi(ret);
2115 wpabuf_free(ret);
2116 if (tmp == NULL)
2117 return NULL;
2118 ret = tmp;
2119 }
2120
2121 return ret;
2122 }
2123
2124
hostapd_wps_nfc_report_handover(struct hostapd_data * hapd,const struct wpabuf * req,const struct wpabuf * sel)2125 int hostapd_wps_nfc_report_handover(struct hostapd_data *hapd,
2126 const struct wpabuf *req,
2127 const struct wpabuf *sel)
2128 {
2129 struct wpabuf *wps;
2130 int ret = -1;
2131 u16 wsc_len;
2132 const u8 *pos;
2133 struct wpabuf msg;
2134 struct wps_parse_attr attr;
2135 u16 dev_pw_id;
2136
2137 /*
2138 * Enrollee/station is always initiator of the NFC connection handover,
2139 * so use the request message here to find Enrollee public key hash.
2140 */
2141 wps = ndef_parse_wifi(req);
2142 if (wps == NULL)
2143 return -1;
2144 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2145 "payload from NFC connection handover");
2146 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2147 if (wpabuf_len(wps) < 2) {
2148 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
2149 "Message");
2150 goto out;
2151 }
2152 pos = wpabuf_head(wps);
2153 wsc_len = WPA_GET_BE16(pos);
2154 if (wsc_len > wpabuf_len(wps) - 2) {
2155 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2156 "in rt Wi-Fi Handover Request Message", wsc_len);
2157 goto out;
2158 }
2159 pos += 2;
2160
2161 wpa_hexdump(MSG_DEBUG,
2162 "WPS: WSC attributes in Wi-Fi Handover Request Message",
2163 pos, wsc_len);
2164 if (wsc_len < wpabuf_len(wps) - 2) {
2165 wpa_hexdump(MSG_DEBUG,
2166 "WPS: Ignore extra data after WSC attributes",
2167 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2168 }
2169
2170 wpabuf_set(&msg, pos, wsc_len);
2171 ret = wps_parse_msg(&msg, &attr);
2172 if (ret < 0) {
2173 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2174 "Wi-Fi Handover Request Message");
2175 goto out;
2176 }
2177
2178 if (attr.oob_dev_password == NULL ||
2179 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2180 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2181 "included in Wi-Fi Handover Request Message");
2182 ret = -1;
2183 goto out;
2184 }
2185
2186 if (attr.uuid_e == NULL) {
2187 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
2188 "Handover Request Message");
2189 ret = -1;
2190 goto out;
2191 }
2192
2193 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
2194
2195 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2196 attr.oob_dev_password, attr.oob_dev_password_len);
2197 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2198 WPS_OOB_PUBKEY_HASH_LEN);
2199 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2200 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2201 "%u in Wi-Fi Handover Request Message", dev_pw_id);
2202 ret = -1;
2203 goto out;
2204 }
2205 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
2206 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2207
2208 ret = wps_registrar_add_nfc_pw_token(hapd->wps->registrar,
2209 attr.oob_dev_password,
2210 DEV_PW_NFC_CONNECTION_HANDOVER,
2211 NULL, 0, 1);
2212
2213 out:
2214 wpabuf_free(wps);
2215 return ret;
2216 }
2217
2218
hostapd_wps_nfc_token_gen(struct hostapd_data * hapd,int ndef)2219 struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
2220 {
2221 if (hapd->conf->wps_nfc_pw_from_config) {
2222 return wps_nfc_token_build(ndef,
2223 hapd->conf->wps_nfc_dev_pw_id,
2224 hapd->conf->wps_nfc_dh_pubkey,
2225 hapd->conf->wps_nfc_dev_pw);
2226 }
2227
2228 return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
2229 &hapd->conf->wps_nfc_dh_pubkey,
2230 &hapd->conf->wps_nfc_dh_privkey,
2231 &hapd->conf->wps_nfc_dev_pw);
2232 }
2233
2234
hostapd_wps_nfc_token_enable(struct hostapd_data * hapd)2235 int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
2236 {
2237 struct wps_context *wps = hapd->wps;
2238 struct wpabuf *pw;
2239
2240 if (wps == NULL)
2241 return -1;
2242
2243 if (!hapd->conf->wps_nfc_dh_pubkey ||
2244 !hapd->conf->wps_nfc_dh_privkey ||
2245 !hapd->conf->wps_nfc_dev_pw ||
2246 !hapd->conf->wps_nfc_dev_pw_id)
2247 return -1;
2248
2249 hostapd_wps_nfc_clear(wps);
2250 wpa_printf(MSG_DEBUG,
2251 "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)",
2252 hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps);
2253 wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
2254 wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
2255 wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
2256 pw = hapd->conf->wps_nfc_dev_pw;
2257 wps->ap_nfc_dev_pw = wpabuf_alloc(
2258 wpabuf_len(pw) * 2 + 1);
2259 if (wps->ap_nfc_dev_pw) {
2260 wpa_snprintf_hex_uppercase(
2261 (char *) wpabuf_put(wps->ap_nfc_dev_pw,
2262 wpabuf_len(pw) * 2),
2263 wpabuf_len(pw) * 2 + 1,
2264 wpabuf_head(pw), wpabuf_len(pw));
2265 }
2266
2267 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
2268 !wps->ap_nfc_dev_pw) {
2269 hostapd_wps_nfc_clear(wps);
2270 return -1;
2271 }
2272
2273 return 0;
2274 }
2275
2276
hostapd_wps_nfc_token_disable(struct hostapd_data * hapd)2277 void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
2278 {
2279 wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s",
2280 hapd->conf->iface);
2281 hostapd_wps_nfc_clear(hapd->wps);
2282 }
2283
2284 #endif /* CONFIG_WPS_NFC */
2285