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
129 if (hapd->new_psk_cb) {
130 hapd->new_psk_cb(hapd->new_psk_cb_ctx, mac_addr, p2p_dev_addr,
131 psk, psk_len);
132 }
133
134 p->next = ssid->wpa_psk;
135 ssid->wpa_psk = p;
136
137 if (ssid->wpa_psk_file) {
138 FILE *f;
139 char hex[PMK_LEN * 2 + 1];
140 /* Add the new PSK to PSK list file */
141 f = fopen(ssid->wpa_psk_file, "a");
142 if (f == NULL) {
143 wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
144 "'%s'", ssid->wpa_psk_file);
145 return -1;
146 }
147
148 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
149 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
150 fclose(f);
151 }
152
153 return 0;
154 }
155
156
hostapd_wps_set_ie_cb(void * ctx,struct wpabuf * beacon_ie,struct wpabuf * probe_resp_ie)157 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
158 struct wpabuf *probe_resp_ie)
159 {
160 struct hostapd_data *hapd = ctx;
161 wpabuf_free(hapd->wps_beacon_ie);
162 hapd->wps_beacon_ie = beacon_ie;
163 wpabuf_free(hapd->wps_probe_resp_ie);
164 hapd->wps_probe_resp_ie = probe_resp_ie;
165 if (hapd->beacon_set_done)
166 ieee802_11_set_beacon(hapd);
167 return hostapd_set_ap_wps_ie(hapd);
168 }
169
170
hostapd_wps_pin_needed_cb(void * ctx,const u8 * uuid_e,const struct wps_device_data * dev)171 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
172 const struct wps_device_data *dev)
173 {
174 struct hostapd_data *hapd = ctx;
175 char uuid[40], txt[400];
176 int len;
177 char devtype[WPS_DEV_TYPE_BUFSIZE];
178 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
179 return;
180 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
181 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
182 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
183 uuid, MAC2STR(dev->mac_addr), dev->device_name,
184 dev->manufacturer, dev->model_name,
185 dev->model_number, dev->serial_number,
186 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
187 sizeof(devtype)));
188 if (!os_snprintf_error(sizeof(txt), len))
189 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
190
191 if (hapd->conf->wps_pin_requests) {
192 FILE *f;
193 struct os_time t;
194 f = fopen(hapd->conf->wps_pin_requests, "a");
195 if (f == NULL)
196 return;
197 os_get_time(&t);
198 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
199 "\t%s\n",
200 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
201 dev->manufacturer, dev->model_name, dev->model_number,
202 dev->serial_number,
203 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
204 sizeof(devtype)));
205 fclose(f);
206 }
207 }
208
209
210 struct wps_stop_reg_data {
211 struct hostapd_data *current_hapd;
212 const u8 *uuid_e;
213 const u8 *dev_pw;
214 size_t dev_pw_len;
215 };
216
wps_stop_registrar(struct hostapd_data * hapd,void * ctx)217 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
218 {
219 struct wps_stop_reg_data *data = ctx;
220 if (hapd != data->current_hapd && hapd->wps != NULL)
221 wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
222 data->dev_pw, data->dev_pw_len);
223 return 0;
224 }
225
226
hostapd_wps_reg_success_cb(void * ctx,const u8 * mac_addr,const u8 * uuid_e,const u8 * dev_pw,size_t dev_pw_len)227 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
228 const u8 *uuid_e, const u8 *dev_pw,
229 size_t dev_pw_len)
230 {
231 struct hostapd_data *hapd = ctx;
232 char uuid[40];
233 struct wps_stop_reg_data data;
234 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
235 return;
236 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
237 MAC2STR(mac_addr), uuid);
238 if (hapd->wps_reg_success_cb)
239 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
240 mac_addr, uuid_e);
241 data.current_hapd = hapd;
242 data.uuid_e = uuid_e;
243 data.dev_pw = dev_pw;
244 data.dev_pw_len = dev_pw_len;
245 hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
246 }
247
248
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)249 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
250 const u8 *uuid_e,
251 const u8 *pri_dev_type,
252 u16 config_methods,
253 u16 dev_password_id, u8 request_type,
254 const char *dev_name)
255 {
256 struct hostapd_data *hapd = ctx;
257 char uuid[40];
258 char devtype[WPS_DEV_TYPE_BUFSIZE];
259 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
260 return;
261 if (dev_name == NULL)
262 dev_name = "";
263 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
264 " %s %s 0x%x %u %u [%s]",
265 MAC2STR(addr), uuid,
266 wps_dev_type_bin2str(pri_dev_type, devtype,
267 sizeof(devtype)),
268 config_methods, dev_password_id, request_type, dev_name);
269 }
270
271
wps_reload_config(void * eloop_data,void * user_ctx)272 static void wps_reload_config(void *eloop_data, void *user_ctx)
273 {
274 struct hostapd_iface *iface = eloop_data;
275
276 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
277 if (iface->interfaces == NULL ||
278 iface->interfaces->reload_config(iface) < 0) {
279 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
280 "configuration");
281 }
282 }
283
284
hostapd_wps_eap_completed(struct hostapd_data * hapd)285 void hostapd_wps_eap_completed(struct hostapd_data *hapd)
286 {
287 /*
288 * Reduce race condition of the station trying to reconnect immediately
289 * after AP reconfiguration through WPS by rescheduling the reload
290 * timeout to happen after EAP completion rather than the originally
291 * scheduled 100 ms after new configuration became known.
292 */
293 if (eloop_deplete_timeout(0, 0, wps_reload_config, hapd->iface, NULL) ==
294 1)
295 wpa_printf(MSG_DEBUG, "WPS: Reschedule immediate configuration reload");
296 }
297
298
hapd_new_ap_event(struct hostapd_data * hapd,const u8 * attr,size_t attr_len)299 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
300 size_t attr_len)
301 {
302 size_t blen = attr_len * 2 + 1;
303 char *buf = os_malloc(blen);
304 if (buf) {
305 wpa_snprintf_hex(buf, blen, attr, attr_len);
306 wpa_msg(hapd->msg_ctx, MSG_INFO,
307 WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
308 os_free(buf);
309 }
310 }
311
312
hapd_wps_reconfig_in_memory(struct hostapd_data * hapd,const struct wps_credential * cred)313 static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
314 const struct wps_credential *cred)
315 {
316 struct hostapd_bss_config *bss = hapd->conf;
317
318 wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
319
320 bss->wps_state = 2;
321 if (cred->ssid_len <= SSID_MAX_LEN) {
322 os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
323 bss->ssid.ssid_len = cred->ssid_len;
324 bss->ssid.ssid_set = 1;
325 }
326
327 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
328 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
329 bss->wpa = 3;
330 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
331 bss->wpa = 2;
332 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
333 bss->wpa = 1;
334 else
335 bss->wpa = 0;
336
337 if (bss->wpa) {
338 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
339 bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
340 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
341 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
342
343 bss->wpa_pairwise = 0;
344 if (cred->encr_type & WPS_ENCR_AES) {
345 if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD)
346 bss->wpa_pairwise |= WPA_CIPHER_GCMP;
347 else
348 bss->wpa_pairwise |= WPA_CIPHER_CCMP;
349 }
350 if (cred->encr_type & WPS_ENCR_TKIP)
351 bss->wpa_pairwise |= WPA_CIPHER_TKIP;
352 bss->rsn_pairwise = bss->wpa_pairwise;
353 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
354 bss->wpa_pairwise,
355 bss->rsn_pairwise);
356
357 if (hapd->conf->wps_cred_add_sae &&
358 (cred->auth_type & WPS_AUTH_WPA2PSK) &&
359 cred->key_len != 2 * PMK_LEN) {
360 bss->wpa_key_mgmt |= WPA_KEY_MGMT_SAE;
361 #ifdef CONFIG_IEEE80211W
362 if (bss->ieee80211w == NO_MGMT_FRAME_PROTECTION)
363 bss->ieee80211w =
364 MGMT_FRAME_PROTECTION_OPTIONAL;
365 bss->sae_require_mfp = 1;
366 #endif /* CONFIG_IEEE80211W */
367 }
368
369 if (cred->key_len >= 8 && cred->key_len < 64) {
370 os_free(bss->ssid.wpa_passphrase);
371 bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
372 if (bss->ssid.wpa_passphrase)
373 os_memcpy(bss->ssid.wpa_passphrase, cred->key,
374 cred->key_len);
375 hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk);
376 } else if (cred->key_len == 64) {
377 hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk);
378 bss->ssid.wpa_psk =
379 os_zalloc(sizeof(struct hostapd_wpa_psk));
380 if (bss->ssid.wpa_psk &&
381 hexstr2bin((const char *) cred->key,
382 bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
383 bss->ssid.wpa_psk->group = 1;
384 os_free(bss->ssid.wpa_passphrase);
385 bss->ssid.wpa_passphrase = NULL;
386 }
387 }
388 bss->auth_algs = 1;
389 } else {
390 /*
391 * WPS 2.0 does not allow WEP to be configured, so no need to
392 * process that option here either.
393 */
394 bss->auth_algs = 1;
395 }
396
397 /* Schedule configuration reload after short period of time to allow
398 * EAP-WSC to be finished.
399 */
400 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
401 NULL);
402
403 return 0;
404 }
405
406
hapd_wps_cred_cb(struct hostapd_data * hapd,void * ctx)407 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
408 {
409 const struct wps_credential *cred = ctx;
410 FILE *oconf, *nconf;
411 size_t len, i;
412 char *tmp_fname;
413 char buf[1024];
414 int multi_bss;
415 int wpa;
416 int pmf_changed = 0;
417
418 if (hapd->wps == NULL)
419 return 0;
420
421 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
422 cred->cred_attr, cred->cred_attr_len);
423
424 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
425 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
426 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
427 cred->auth_type);
428 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
429 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
430 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
431 cred->key, cred->key_len);
432 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
433 MAC2STR(cred->mac_addr));
434
435 if ((hapd->conf->wps_cred_processing == 1 ||
436 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
437 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
438 } else if (hapd->conf->wps_cred_processing == 1 ||
439 hapd->conf->wps_cred_processing == 2) {
440 struct wpabuf *attr;
441 attr = wpabuf_alloc(200);
442 if (attr && wps_build_credential_wrap(attr, cred) == 0)
443 hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
444 wpabuf_len(attr));
445 wpabuf_free(attr);
446 } else
447 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
448
449 if (hapd->conf->wps_cred_processing == 1)
450 return 0;
451
452 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
453 hapd->wps->ssid_len = cred->ssid_len;
454 hapd->wps->encr_types = cred->encr_type;
455 hapd->wps->encr_types_rsn = cred->encr_type;
456 hapd->wps->encr_types_wpa = cred->encr_type;
457 hapd->wps->auth_types = cred->auth_type;
458 hapd->wps->ap_encr_type = cred->encr_type;
459 hapd->wps->ap_auth_type = cred->auth_type;
460 if (cred->key_len == 0) {
461 os_free(hapd->wps->network_key);
462 hapd->wps->network_key = NULL;
463 hapd->wps->network_key_len = 0;
464 } else if ((cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) &&
465 (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN)) {
466 wpa_printf(MSG_INFO, "WPS: Invalid key length %lu for WPA/WPA2",
467 (unsigned long) cred->key_len);
468 return -1;
469 } else {
470 if (hapd->wps->network_key == NULL ||
471 hapd->wps->network_key_len < cred->key_len) {
472 hapd->wps->network_key_len = 0;
473 os_free(hapd->wps->network_key);
474 hapd->wps->network_key = os_malloc(cred->key_len);
475 if (hapd->wps->network_key == NULL)
476 return -1;
477 }
478 hapd->wps->network_key_len = cred->key_len;
479 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
480 }
481 hapd->wps->wps_state = WPS_STATE_CONFIGURED;
482
483 if (hapd->iface->config_fname == NULL)
484 return hapd_wps_reconfig_in_memory(hapd, cred);
485 len = os_strlen(hapd->iface->config_fname) + 5;
486 tmp_fname = os_malloc(len);
487 if (tmp_fname == NULL)
488 return -1;
489 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
490
491 oconf = fopen(hapd->iface->config_fname, "r");
492 if (oconf == NULL) {
493 wpa_printf(MSG_WARNING, "WPS: Could not open current "
494 "configuration file");
495 os_free(tmp_fname);
496 return -1;
497 }
498
499 nconf = fopen(tmp_fname, "w");
500 if (nconf == NULL) {
501 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
502 "configuration file");
503 os_free(tmp_fname);
504 fclose(oconf);
505 return -1;
506 }
507
508 fprintf(nconf, "# WPS configuration - START\n");
509
510 fprintf(nconf, "wps_state=2\n");
511
512 if (is_hex(cred->ssid, cred->ssid_len)) {
513 fprintf(nconf, "ssid2=");
514 for (i = 0; i < cred->ssid_len; i++)
515 fprintf(nconf, "%02x", cred->ssid[i]);
516 fprintf(nconf, "\n");
517 } else {
518 fprintf(nconf, "ssid=");
519 for (i = 0; i < cred->ssid_len; i++)
520 fputc(cred->ssid[i], nconf);
521 fprintf(nconf, "\n");
522 }
523
524 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
525 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
526 wpa = 3;
527 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
528 wpa = 2;
529 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
530 wpa = 1;
531 else
532 wpa = 0;
533
534 if (wpa) {
535 char *prefix;
536 #ifdef CONFIG_IEEE80211W
537 int sae = 0;
538 #endif /* CONFIG_IEEE80211W */
539
540 fprintf(nconf, "wpa=%d\n", wpa);
541
542 fprintf(nconf, "wpa_key_mgmt=");
543 prefix = "";
544 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
545 fprintf(nconf, "WPA-EAP");
546 prefix = " ";
547 }
548 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) {
549 fprintf(nconf, "%sWPA-PSK", prefix);
550 prefix = " ";
551 }
552 if (hapd->conf->wps_cred_add_sae &&
553 (cred->auth_type & WPS_AUTH_WPA2PSK) &&
554 cred->key_len != 2 * PMK_LEN) {
555 fprintf(nconf, "%sSAE", prefix);
556 #ifdef CONFIG_IEEE80211W
557 sae = 1;
558 #endif /* CONFIG_IEEE80211W */
559 }
560 fprintf(nconf, "\n");
561
562 #ifdef CONFIG_IEEE80211W
563 if (sae && hapd->conf->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
564 fprintf(nconf, "ieee80211w=%d\n",
565 MGMT_FRAME_PROTECTION_OPTIONAL);
566 pmf_changed = 1;
567 }
568 if (sae)
569 fprintf(nconf, "sae_require_mfp=1\n");
570 #endif /* CONFIG_IEEE80211W */
571
572 fprintf(nconf, "wpa_pairwise=");
573 prefix = "";
574 if (cred->encr_type & WPS_ENCR_AES) {
575 if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD)
576 fprintf(nconf, "GCMP");
577 else
578 fprintf(nconf, "CCMP");
579
580 prefix = " ";
581 }
582 if (cred->encr_type & WPS_ENCR_TKIP) {
583 fprintf(nconf, "%sTKIP", prefix);
584 }
585 fprintf(nconf, "\n");
586
587 if (cred->key_len >= 8 && cred->key_len < 64) {
588 fprintf(nconf, "wpa_passphrase=");
589 for (i = 0; i < cred->key_len; i++)
590 fputc(cred->key[i], nconf);
591 fprintf(nconf, "\n");
592 } else if (cred->key_len == 64) {
593 fprintf(nconf, "wpa_psk=");
594 for (i = 0; i < cred->key_len; i++)
595 fputc(cred->key[i], nconf);
596 fprintf(nconf, "\n");
597 } else {
598 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
599 "for WPA/WPA2",
600 (unsigned long) cred->key_len);
601 }
602
603 fprintf(nconf, "auth_algs=1\n");
604 } else {
605 /*
606 * WPS 2.0 does not allow WEP to be configured, so no need to
607 * process that option here either.
608 */
609 fprintf(nconf, "auth_algs=1\n");
610 }
611
612 fprintf(nconf, "# WPS configuration - END\n");
613
614 multi_bss = 0;
615 while (fgets(buf, sizeof(buf), oconf)) {
616 if (os_strncmp(buf, "bss=", 4) == 0)
617 multi_bss = 1;
618 if (!multi_bss &&
619 (str_starts(buf, "ssid=") ||
620 str_starts(buf, "ssid2=") ||
621 str_starts(buf, "auth_algs=") ||
622 str_starts(buf, "wep_default_key=") ||
623 str_starts(buf, "wep_key") ||
624 str_starts(buf, "wps_state=") ||
625 (pmf_changed && str_starts(buf, "ieee80211w=")) ||
626 str_starts(buf, "wpa=") ||
627 str_starts(buf, "wpa_psk=") ||
628 str_starts(buf, "wpa_pairwise=") ||
629 str_starts(buf, "rsn_pairwise=") ||
630 str_starts(buf, "wpa_key_mgmt=") ||
631 str_starts(buf, "wpa_passphrase="))) {
632 fprintf(nconf, "#WPS# %s", buf);
633 } else
634 fprintf(nconf, "%s", buf);
635 }
636
637 fclose(nconf);
638 fclose(oconf);
639
640 if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
641 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
642 "configuration file: %s", strerror(errno));
643 os_free(tmp_fname);
644 return -1;
645 }
646
647 os_free(tmp_fname);
648
649 /* Schedule configuration reload after short period of time to allow
650 * EAP-WSC to be finished.
651 */
652 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
653 NULL);
654
655 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
656
657 return 0;
658 }
659
660
hostapd_wps_cred_cb(void * ctx,const struct wps_credential * cred)661 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
662 {
663 struct hostapd_data *hapd = ctx;
664 return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
665 }
666
667
hostapd_wps_reenable_ap_pin(void * eloop_data,void * user_ctx)668 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
669 {
670 struct hostapd_data *hapd = eloop_data;
671
672 if (hapd->conf->ap_setup_locked)
673 return;
674 if (hapd->ap_pin_failures_consecutive >= 10)
675 return;
676
677 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
678 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
679 hapd->wps->ap_setup_locked = 0;
680 wps_registrar_update_ie(hapd->wps->registrar);
681 }
682
683
wps_pwd_auth_fail(struct hostapd_data * hapd,void * ctx)684 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
685 {
686 struct wps_event_pwd_auth_fail *data = ctx;
687
688 if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
689 return 0;
690
691 /*
692 * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
693 * for some time if this happens multiple times to slow down brute
694 * force attacks.
695 */
696 hapd->ap_pin_failures++;
697 hapd->ap_pin_failures_consecutive++;
698 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
699 "(%u consecutive)",
700 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
701 if (hapd->ap_pin_failures < 3)
702 return 0;
703
704 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
705 hapd->wps->ap_setup_locked = 1;
706
707 wps_registrar_update_ie(hapd->wps->registrar);
708
709 if (!hapd->conf->ap_setup_locked &&
710 hapd->ap_pin_failures_consecutive >= 10) {
711 /*
712 * In indefinite lockdown - disable automatic AP PIN
713 * reenablement.
714 */
715 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
716 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
717 } else if (!hapd->conf->ap_setup_locked) {
718 if (hapd->ap_pin_lockout_time == 0)
719 hapd->ap_pin_lockout_time = 60;
720 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
721 (hapd->ap_pin_failures % 3) == 0)
722 hapd->ap_pin_lockout_time *= 2;
723
724 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
725 hapd->ap_pin_lockout_time);
726 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
727 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
728 hostapd_wps_reenable_ap_pin, hapd,
729 NULL);
730 }
731
732 return 0;
733 }
734
735
hostapd_pwd_auth_fail(struct hostapd_data * hapd,struct wps_event_pwd_auth_fail * data)736 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
737 struct wps_event_pwd_auth_fail *data)
738 {
739 /* Update WPS Status - Authentication Failure */
740 wpa_printf(MSG_DEBUG, "WPS: Authentication failure update");
741 hapd->wps_stats.status = WPS_STATUS_FAILURE;
742 hapd->wps_stats.failure_reason = WPS_EI_AUTH_FAILURE;
743 os_memcpy(hapd->wps_stats.peer_addr, data->peer_macaddr, ETH_ALEN);
744
745 hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
746 }
747
748
wps_ap_pin_success(struct hostapd_data * hapd,void * ctx)749 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
750 {
751 if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
752 return 0;
753
754 if (hapd->ap_pin_failures_consecutive == 0)
755 return 0;
756
757 wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
758 "- total validation failures %u (%u consecutive)",
759 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
760 hapd->ap_pin_failures_consecutive = 0;
761
762 return 0;
763 }
764
765
hostapd_wps_ap_pin_success(struct hostapd_data * hapd)766 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
767 {
768 hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
769 }
770
771
hostapd_wps_event_pbc_overlap(struct hostapd_data * hapd)772 static void hostapd_wps_event_pbc_overlap(struct hostapd_data *hapd)
773 {
774 /* Update WPS Status - PBC Overlap */
775 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_OVERLAP;
776 }
777
778
hostapd_wps_event_pbc_timeout(struct hostapd_data * hapd)779 static void hostapd_wps_event_pbc_timeout(struct hostapd_data *hapd)
780 {
781 /* Update WPS PBC Status:PBC Timeout */
782 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_TIMEOUT;
783 }
784
785
hostapd_wps_event_pbc_active(struct hostapd_data * hapd)786 static void hostapd_wps_event_pbc_active(struct hostapd_data *hapd)
787 {
788 /* Update WPS PBC status - Active */
789 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_ACTIVE;
790 }
791
792
hostapd_wps_event_pbc_disable(struct hostapd_data * hapd)793 static void hostapd_wps_event_pbc_disable(struct hostapd_data *hapd)
794 {
795 /* Update WPS PBC status - Active */
796 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
797 }
798
799
hostapd_wps_event_success(struct hostapd_data * hapd,struct wps_event_success * success)800 static void hostapd_wps_event_success(struct hostapd_data *hapd,
801 struct wps_event_success *success)
802 {
803 /* Update WPS status - Success */
804 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
805 hapd->wps_stats.status = WPS_STATUS_SUCCESS;
806 os_memcpy(hapd->wps_stats.peer_addr, success->peer_macaddr, ETH_ALEN);
807 }
808
809
hostapd_wps_event_fail(struct hostapd_data * hapd,struct wps_event_fail * fail)810 static void hostapd_wps_event_fail(struct hostapd_data *hapd,
811 struct wps_event_fail *fail)
812 {
813 /* Update WPS status - Failure */
814 hapd->wps_stats.status = WPS_STATUS_FAILURE;
815 os_memcpy(hapd->wps_stats.peer_addr, fail->peer_macaddr, ETH_ALEN);
816
817 hapd->wps_stats.failure_reason = fail->error_indication;
818
819 if (fail->error_indication > 0 &&
820 fail->error_indication < NUM_WPS_EI_VALUES) {
821 wpa_msg(hapd->msg_ctx, MSG_INFO,
822 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
823 fail->msg, fail->config_error, fail->error_indication,
824 wps_ei_str(fail->error_indication));
825 } else {
826 wpa_msg(hapd->msg_ctx, MSG_INFO,
827 WPS_EVENT_FAIL "msg=%d config_error=%d",
828 fail->msg, fail->config_error);
829 }
830 }
831
832
hostapd_wps_event_cb(void * ctx,enum wps_event event,union wps_event_data * data)833 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
834 union wps_event_data *data)
835 {
836 struct hostapd_data *hapd = ctx;
837
838 switch (event) {
839 case WPS_EV_M2D:
840 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
841 break;
842 case WPS_EV_FAIL:
843 hostapd_wps_event_fail(hapd, &data->fail);
844 break;
845 case WPS_EV_SUCCESS:
846 hostapd_wps_event_success(hapd, &data->success);
847 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
848 break;
849 case WPS_EV_PWD_AUTH_FAIL:
850 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
851 break;
852 case WPS_EV_PBC_OVERLAP:
853 hostapd_wps_event_pbc_overlap(hapd);
854 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
855 break;
856 case WPS_EV_PBC_TIMEOUT:
857 hostapd_wps_event_pbc_timeout(hapd);
858 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
859 break;
860 case WPS_EV_PBC_ACTIVE:
861 hostapd_wps_event_pbc_active(hapd);
862 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ACTIVE);
863 break;
864 case WPS_EV_PBC_DISABLE:
865 hostapd_wps_event_pbc_disable(hapd);
866 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_DISABLE);
867 break;
868 case WPS_EV_ER_AP_ADD:
869 break;
870 case WPS_EV_ER_AP_REMOVE:
871 break;
872 case WPS_EV_ER_ENROLLEE_ADD:
873 break;
874 case WPS_EV_ER_ENROLLEE_REMOVE:
875 break;
876 case WPS_EV_ER_AP_SETTINGS:
877 break;
878 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
879 break;
880 case WPS_EV_AP_PIN_SUCCESS:
881 hostapd_wps_ap_pin_success(hapd);
882 break;
883 }
884 if (hapd->wps_event_cb)
885 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
886 }
887
888
hostapd_wps_rf_band_cb(void * ctx)889 static int hostapd_wps_rf_band_cb(void *ctx)
890 {
891 struct hostapd_data *hapd = ctx;
892
893 return hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
894 WPS_RF_50GHZ :
895 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ?
896 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
897 }
898
899
hostapd_wps_clear_ies(struct hostapd_data * hapd,int deinit_only)900 static void hostapd_wps_clear_ies(struct hostapd_data *hapd, int deinit_only)
901 {
902 wpabuf_free(hapd->wps_beacon_ie);
903 hapd->wps_beacon_ie = NULL;
904
905 wpabuf_free(hapd->wps_probe_resp_ie);
906 hapd->wps_probe_resp_ie = NULL;
907
908 if (deinit_only) {
909 if (hapd->drv_priv)
910 hostapd_reset_ap_wps_ie(hapd);
911 return;
912 }
913
914 hostapd_set_ap_wps_ie(hapd);
915 }
916
917
get_uuid_cb(struct hostapd_iface * iface,void * ctx)918 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
919 {
920 const u8 **uuid = ctx;
921 size_t j;
922
923 if (iface == NULL)
924 return 0;
925 for (j = 0; j < iface->num_bss; j++) {
926 struct hostapd_data *hapd = iface->bss[j];
927 if (hapd->wps && !hapd->conf->wps_independent &&
928 !is_nil_uuid(hapd->wps->uuid)) {
929 *uuid = hapd->wps->uuid;
930 return 1;
931 }
932 }
933
934 return 0;
935 }
936
937
get_own_uuid(struct hostapd_iface * iface)938 static const u8 * get_own_uuid(struct hostapd_iface *iface)
939 {
940 const u8 *uuid;
941 if (iface->interfaces == NULL ||
942 iface->interfaces->for_each_interface == NULL)
943 return NULL;
944 uuid = NULL;
945 iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
946 &uuid);
947 return uuid;
948 }
949
950
count_interface_cb(struct hostapd_iface * iface,void * ctx)951 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
952 {
953 int *count= ctx;
954 (*count)++;
955 return 0;
956 }
957
958
interface_count(struct hostapd_iface * iface)959 static int interface_count(struct hostapd_iface *iface)
960 {
961 int count = 0;
962 if (iface->interfaces == NULL ||
963 iface->interfaces->for_each_interface == NULL)
964 return 0;
965 iface->interfaces->for_each_interface(iface->interfaces,
966 count_interface_cb, &count);
967 return count;
968 }
969
970
hostapd_wps_set_vendor_ext(struct hostapd_data * hapd,struct wps_context * wps)971 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
972 struct wps_context *wps)
973 {
974 int i;
975
976 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
977 wpabuf_free(wps->dev.vendor_ext[i]);
978 wps->dev.vendor_ext[i] = NULL;
979
980 if (hapd->conf->wps_vendor_ext[i] == NULL)
981 continue;
982
983 wps->dev.vendor_ext[i] =
984 wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
985 if (wps->dev.vendor_ext[i] == NULL) {
986 while (--i >= 0)
987 wpabuf_free(wps->dev.vendor_ext[i]);
988 return -1;
989 }
990 }
991
992 return 0;
993 }
994
995
hostapd_free_wps(struct wps_context * wps)996 static void hostapd_free_wps(struct wps_context *wps)
997 {
998 int i;
999
1000 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
1001 wpabuf_free(wps->dev.vendor_ext[i]);
1002 wps_device_data_free(&wps->dev);
1003 os_free(wps->network_key);
1004 hostapd_wps_nfc_clear(wps);
1005 wpabuf_free(wps->dh_pubkey);
1006 wpabuf_free(wps->dh_privkey);
1007 os_free(wps);
1008 }
1009
1010
hostapd_init_wps(struct hostapd_data * hapd,struct hostapd_bss_config * conf)1011 int hostapd_init_wps(struct hostapd_data *hapd,
1012 struct hostapd_bss_config *conf)
1013 {
1014 struct wps_context *wps;
1015 struct wps_registrar_config cfg;
1016 u8 *multi_ap_netw_key = NULL;
1017
1018 if (conf->wps_state == 0) {
1019 hostapd_wps_clear_ies(hapd, 0);
1020 return 0;
1021 }
1022
1023 wps = os_zalloc(sizeof(*wps));
1024 if (wps == NULL)
1025 return -1;
1026
1027 wps->cred_cb = hostapd_wps_cred_cb;
1028 wps->event_cb = hostapd_wps_event_cb;
1029 wps->rf_band_cb = hostapd_wps_rf_band_cb;
1030 wps->cb_ctx = hapd;
1031
1032 os_memset(&cfg, 0, sizeof(cfg));
1033 wps->wps_state = hapd->conf->wps_state;
1034 wps->ap_setup_locked = hapd->conf->ap_setup_locked;
1035 if (is_nil_uuid(hapd->conf->uuid)) {
1036 const u8 *uuid;
1037 uuid = get_own_uuid(hapd->iface);
1038 if (uuid && !conf->wps_independent) {
1039 os_memcpy(wps->uuid, uuid, UUID_LEN);
1040 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
1041 "interface", wps->uuid, UUID_LEN);
1042 } else {
1043 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
1044 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1045 "address", wps->uuid, UUID_LEN);
1046 }
1047 } else {
1048 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
1049 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
1050 wps->uuid, UUID_LEN);
1051 }
1052 wps->ssid_len = hapd->conf->ssid.ssid_len;
1053 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
1054 wps->ap = 1;
1055 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
1056 wps->dev.device_name = hapd->conf->device_name ?
1057 os_strdup(hapd->conf->device_name) : NULL;
1058 wps->dev.manufacturer = hapd->conf->manufacturer ?
1059 os_strdup(hapd->conf->manufacturer) : NULL;
1060 wps->dev.model_name = hapd->conf->model_name ?
1061 os_strdup(hapd->conf->model_name) : NULL;
1062 wps->dev.model_number = hapd->conf->model_number ?
1063 os_strdup(hapd->conf->model_number) : NULL;
1064 wps->dev.serial_number = hapd->conf->serial_number ?
1065 os_strdup(hapd->conf->serial_number) : NULL;
1066 wps->config_methods =
1067 wps_config_methods_str2bin(hapd->conf->config_methods);
1068 if ((wps->config_methods &
1069 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1070 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1071 wpa_printf(MSG_INFO, "WPS: Converting display to "
1072 "virtual_display for WPS 2.0 compliance");
1073 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1074 }
1075 if ((wps->config_methods &
1076 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1077 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1078 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1079 "virtual_push_button for WPS 2.0 compliance");
1080 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1081 }
1082 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
1083 WPS_DEV_TYPE_LEN);
1084
1085 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0)
1086 goto fail;
1087
1088 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
1089
1090 if (conf->wps_rf_bands) {
1091 wps->dev.rf_bands = conf->wps_rf_bands;
1092 } else {
1093 wps->dev.rf_bands =
1094 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
1095 WPS_RF_50GHZ :
1096 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ?
1097 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
1098 }
1099
1100 if (conf->wpa & WPA_PROTO_RSN) {
1101 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1102 wps->auth_types |= WPS_AUTH_WPA2PSK;
1103 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1104 wps->auth_types |= WPS_AUTH_WPA2;
1105
1106 if (conf->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1107 WPA_CIPHER_CCMP_256 |
1108 WPA_CIPHER_GCMP_256)) {
1109 wps->encr_types |= WPS_ENCR_AES;
1110 wps->encr_types_rsn |= WPS_ENCR_AES;
1111 }
1112 if (conf->rsn_pairwise & WPA_CIPHER_TKIP) {
1113 wps->encr_types |= WPS_ENCR_TKIP;
1114 wps->encr_types_rsn |= WPS_ENCR_TKIP;
1115 }
1116 }
1117
1118 if (conf->wpa & WPA_PROTO_WPA) {
1119 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1120 wps->auth_types |= WPS_AUTH_WPAPSK;
1121 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1122 wps->auth_types |= WPS_AUTH_WPA;
1123
1124 if (conf->wpa_pairwise & WPA_CIPHER_CCMP) {
1125 wps->encr_types |= WPS_ENCR_AES;
1126 wps->encr_types_wpa |= WPS_ENCR_AES;
1127 }
1128 if (conf->wpa_pairwise & WPA_CIPHER_TKIP) {
1129 wps->encr_types |= WPS_ENCR_TKIP;
1130 wps->encr_types_wpa |= WPS_ENCR_TKIP;
1131 }
1132 }
1133
1134 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
1135 wps->encr_types |= WPS_ENCR_NONE;
1136 wps->auth_types |= WPS_AUTH_OPEN;
1137 }
1138
1139 if (conf->ssid.wpa_psk_file) {
1140 /* Use per-device PSKs */
1141 } else if (conf->ssid.wpa_passphrase) {
1142 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1143 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1144 } else if (conf->ssid.wpa_psk) {
1145 wps->network_key = os_malloc(2 * PMK_LEN + 1);
1146 if (wps->network_key == NULL)
1147 goto fail;
1148 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1149 conf->ssid.wpa_psk->psk, PMK_LEN);
1150 wps->network_key_len = 2 * PMK_LEN;
1151 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1152 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
1153 if (wps->network_key == NULL)
1154 goto fail;
1155 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1156 conf->ssid.wep.len[0]);
1157 wps->network_key_len = conf->ssid.wep.len[0];
1158 }
1159
1160 if (conf->ssid.wpa_psk) {
1161 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1162 wps->psk_set = 1;
1163 }
1164
1165 wps->ap_auth_type = wps->auth_types;
1166 wps->ap_encr_type = wps->encr_types;
1167 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
1168 /* Override parameters to enable security by default */
1169 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1170 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1171 wps->encr_types_rsn = WPS_ENCR_AES | WPS_ENCR_TKIP;
1172 wps->encr_types_wpa = WPS_ENCR_AES | WPS_ENCR_TKIP;
1173 }
1174
1175 if ((hapd->conf->multi_ap & FRONTHAUL_BSS) &&
1176 hapd->conf->multi_ap_backhaul_ssid.ssid_len) {
1177 cfg.multi_ap_backhaul_ssid_len =
1178 hapd->conf->multi_ap_backhaul_ssid.ssid_len;
1179 cfg.multi_ap_backhaul_ssid =
1180 hapd->conf->multi_ap_backhaul_ssid.ssid;
1181
1182 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) {
1183 cfg.multi_ap_backhaul_network_key = (const u8 *)
1184 conf->multi_ap_backhaul_ssid.wpa_passphrase;
1185 cfg.multi_ap_backhaul_network_key_len =
1186 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase);
1187 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) {
1188 multi_ap_netw_key = os_malloc(2 * PMK_LEN + 1);
1189 if (!multi_ap_netw_key)
1190 goto fail;
1191 wpa_snprintf_hex((char *) multi_ap_netw_key,
1192 2 * PMK_LEN + 1,
1193 conf->multi_ap_backhaul_ssid.wpa_psk->psk,
1194 PMK_LEN);
1195 cfg.multi_ap_backhaul_network_key = multi_ap_netw_key;
1196 cfg.multi_ap_backhaul_network_key_len = 2 * PMK_LEN;
1197 }
1198 }
1199
1200 wps->ap_settings = conf->ap_settings;
1201 wps->ap_settings_len = conf->ap_settings_len;
1202
1203 cfg.new_psk_cb = hostapd_wps_new_psk_cb;
1204 cfg.set_ie_cb = hostapd_wps_set_ie_cb;
1205 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
1206 cfg.reg_success_cb = hostapd_wps_reg_success_cb;
1207 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
1208 cfg.cb_ctx = hapd;
1209 cfg.skip_cred_build = conf->skip_cred_build;
1210 cfg.extra_cred = conf->extra_cred;
1211 cfg.extra_cred_len = conf->extra_cred_len;
1212 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
1213 conf->skip_cred_build;
1214 if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
1215 cfg.static_wep_only = 1;
1216 cfg.dualband = interface_count(hapd->iface) > 1;
1217 if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
1218 (WPS_RF_50GHZ | WPS_RF_24GHZ))
1219 cfg.dualband = 1;
1220 if (cfg.dualband)
1221 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
1222 cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk;
1223
1224 wps->registrar = wps_registrar_init(wps, &cfg);
1225 if (wps->registrar == NULL) {
1226 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
1227 goto fail;
1228 }
1229
1230 #ifdef CONFIG_WPS_UPNP
1231 wps->friendly_name = hapd->conf->friendly_name;
1232 wps->manufacturer_url = hapd->conf->manufacturer_url;
1233 wps->model_description = hapd->conf->model_description;
1234 wps->model_url = hapd->conf->model_url;
1235 wps->upc = hapd->conf->upc;
1236 #endif /* CONFIG_WPS_UPNP */
1237
1238 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
1239
1240 hapd->wps = wps;
1241 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN);
1242
1243 return 0;
1244
1245 fail:
1246 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN);
1247 hostapd_free_wps(wps);
1248 return -1;
1249 }
1250
1251
hostapd_init_wps_complete(struct hostapd_data * hapd)1252 int hostapd_init_wps_complete(struct hostapd_data *hapd)
1253 {
1254 struct wps_context *wps = hapd->wps;
1255
1256 if (wps == NULL)
1257 return 0;
1258
1259 #ifdef CONFIG_WPS_UPNP
1260 if (hostapd_wps_upnp_init(hapd, wps) < 0) {
1261 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
1262 wps_registrar_deinit(wps->registrar);
1263 hostapd_free_wps(wps);
1264 hapd->wps = NULL;
1265 return -1;
1266 }
1267 #endif /* CONFIG_WPS_UPNP */
1268
1269 return 0;
1270 }
1271
1272
hostapd_wps_nfc_clear(struct wps_context * wps)1273 static void hostapd_wps_nfc_clear(struct wps_context *wps)
1274 {
1275 #ifdef CONFIG_WPS_NFC
1276 wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps);
1277 wps->ap_nfc_dev_pw_id = 0;
1278 wpabuf_free(wps->ap_nfc_dh_pubkey);
1279 wps->ap_nfc_dh_pubkey = NULL;
1280 wpabuf_free(wps->ap_nfc_dh_privkey);
1281 wps->ap_nfc_dh_privkey = NULL;
1282 wpabuf_free(wps->ap_nfc_dev_pw);
1283 wps->ap_nfc_dev_pw = NULL;
1284 #endif /* CONFIG_WPS_NFC */
1285 }
1286
1287
hostapd_deinit_wps(struct hostapd_data * hapd)1288 void hostapd_deinit_wps(struct hostapd_data *hapd)
1289 {
1290 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
1291 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1292 eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL);
1293 if (hapd->wps == NULL) {
1294 hostapd_wps_clear_ies(hapd, 1);
1295 return;
1296 }
1297 #ifdef CONFIG_WPS_UPNP
1298 hostapd_wps_upnp_deinit(hapd);
1299 #endif /* CONFIG_WPS_UPNP */
1300 wps_registrar_deinit(hapd->wps->registrar);
1301 wps_free_pending_msgs(hapd->wps->upnp_msgs);
1302 hostapd_free_wps(hapd->wps);
1303 hapd->wps = NULL;
1304 hostapd_wps_clear_ies(hapd, 1);
1305 }
1306
1307
hostapd_update_wps(struct hostapd_data * hapd)1308 void hostapd_update_wps(struct hostapd_data *hapd)
1309 {
1310 if (hapd->wps == NULL)
1311 return;
1312
1313 #ifdef CONFIG_WPS_UPNP
1314 hapd->wps->friendly_name = hapd->conf->friendly_name;
1315 hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
1316 hapd->wps->model_description = hapd->conf->model_description;
1317 hapd->wps->model_url = hapd->conf->model_url;
1318 hapd->wps->upc = hapd->conf->upc;
1319 #endif /* CONFIG_WPS_UPNP */
1320
1321 hostapd_wps_set_vendor_ext(hapd, hapd->wps);
1322
1323 if (hapd->conf->wps_state)
1324 wps_registrar_update_ie(hapd->wps->registrar);
1325 else
1326 hostapd_deinit_wps(hapd);
1327 }
1328
1329
1330 struct wps_add_pin_data {
1331 const u8 *addr;
1332 const u8 *uuid;
1333 const u8 *pin;
1334 size_t pin_len;
1335 int timeout;
1336 int added;
1337 };
1338
1339
wps_add_pin(struct hostapd_data * hapd,void * ctx)1340 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1341 {
1342 struct wps_add_pin_data *data = ctx;
1343 int ret;
1344
1345 if (hapd->wps == NULL)
1346 return 0;
1347 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1348 data->uuid, data->pin, data->pin_len,
1349 data->timeout);
1350 if (ret == 0)
1351 data->added++;
1352 return ret;
1353 }
1354
1355
hostapd_wps_add_pin(struct hostapd_data * hapd,const u8 * addr,const char * uuid,const char * pin,int timeout)1356 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
1357 const char *uuid, const char *pin, int timeout)
1358 {
1359 u8 u[UUID_LEN];
1360 struct wps_add_pin_data data;
1361
1362 data.addr = addr;
1363 data.uuid = u;
1364 data.pin = (const u8 *) pin;
1365 data.pin_len = os_strlen(pin);
1366 data.timeout = timeout;
1367 data.added = 0;
1368
1369 if (os_strcmp(uuid, "any") == 0)
1370 data.uuid = NULL;
1371 else {
1372 if (uuid_str2bin(uuid, u))
1373 return -1;
1374 data.uuid = u;
1375 }
1376 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1377 return -1;
1378 return data.added ? 0 : -1;
1379 }
1380
1381
1382 struct wps_button_pushed_ctx {
1383 const u8 *p2p_dev_addr;
1384 unsigned int count;
1385 };
1386
wps_button_pushed(struct hostapd_data * hapd,void * ctx)1387 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1388 {
1389 struct wps_button_pushed_ctx *data = ctx;
1390
1391 if (hapd->wps) {
1392 data->count++;
1393 return wps_registrar_button_pushed(hapd->wps->registrar,
1394 data->p2p_dev_addr);
1395 }
1396
1397 return 0;
1398 }
1399
1400
hostapd_wps_button_pushed(struct hostapd_data * hapd,const u8 * p2p_dev_addr)1401 int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1402 const u8 *p2p_dev_addr)
1403 {
1404 struct wps_button_pushed_ctx ctx;
1405 int ret;
1406
1407 os_memset(&ctx, 0, sizeof(ctx));
1408 ctx.p2p_dev_addr = p2p_dev_addr;
1409 ret = hostapd_wps_for_each(hapd, wps_button_pushed, &ctx);
1410 if (ret == 0 && !ctx.count)
1411 ret = -1;
1412 return ret;
1413 }
1414
1415
1416 struct wps_cancel_ctx {
1417 unsigned int count;
1418 };
1419
wps_cancel(struct hostapd_data * hapd,void * ctx)1420 static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1421 {
1422 struct wps_cancel_ctx *data = ctx;
1423
1424 if (hapd->wps) {
1425 data->count++;
1426 wps_registrar_wps_cancel(hapd->wps->registrar);
1427 ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1428 }
1429
1430 return 0;
1431 }
1432
1433
hostapd_wps_cancel(struct hostapd_data * hapd)1434 int hostapd_wps_cancel(struct hostapd_data *hapd)
1435 {
1436 struct wps_cancel_ctx ctx;
1437 int ret;
1438
1439 os_memset(&ctx, 0, sizeof(ctx));
1440 ret = hostapd_wps_for_each(hapd, wps_cancel, &ctx);
1441 if (ret == 0 && !ctx.count)
1442 ret = -1;
1443 return ret;
1444 }
1445
1446
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)1447 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1448 const u8 *bssid,
1449 const u8 *ie, size_t ie_len,
1450 int ssi_signal)
1451 {
1452 struct hostapd_data *hapd = ctx;
1453 struct wpabuf *wps_ie;
1454 struct ieee802_11_elems elems;
1455
1456 if (hapd->wps == NULL)
1457 return 0;
1458
1459 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1460 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1461 MACSTR, MAC2STR(addr));
1462 return 0;
1463 }
1464
1465 if (elems.ssid && elems.ssid_len > 0 &&
1466 (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1467 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1468 0))
1469 return 0; /* Not for us */
1470
1471 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1472 if (wps_ie == NULL)
1473 return 0;
1474 if (wps_validate_probe_req(wps_ie, addr) < 0) {
1475 wpabuf_free(wps_ie);
1476 return 0;
1477 }
1478
1479 if (wpabuf_len(wps_ie) > 0) {
1480 int p2p_wildcard = 0;
1481 #ifdef CONFIG_P2P
1482 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1483 os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1484 P2P_WILDCARD_SSID_LEN) == 0)
1485 p2p_wildcard = 1;
1486 #endif /* CONFIG_P2P */
1487 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1488 p2p_wildcard);
1489 #ifdef CONFIG_WPS_UPNP
1490 /* FIX: what exactly should be included in the WLANEvent?
1491 * WPS attributes? Full ProbeReq frame? */
1492 if (!p2p_wildcard)
1493 upnp_wps_device_send_wlan_event(
1494 hapd->wps_upnp, addr,
1495 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1496 #endif /* CONFIG_WPS_UPNP */
1497 }
1498
1499 wpabuf_free(wps_ie);
1500
1501 return 0;
1502 }
1503
1504
1505 #ifdef CONFIG_WPS_UPNP
1506
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)1507 static int hostapd_rx_req_put_wlan_response(
1508 void *priv, enum upnp_wps_wlanevent_type ev_type,
1509 const u8 *mac_addr, const struct wpabuf *msg,
1510 enum wps_msg_type msg_type)
1511 {
1512 struct hostapd_data *hapd = priv;
1513 struct sta_info *sta;
1514 struct upnp_pending_message *p;
1515
1516 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1517 MACSTR, ev_type, MAC2STR(mac_addr));
1518 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1519 wpabuf_head(msg), wpabuf_len(msg));
1520 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1521 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1522 "PutWLANResponse WLANEventType %d", ev_type);
1523 return -1;
1524 }
1525
1526 /*
1527 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1528 * server implementation for delivery to the peer.
1529 */
1530
1531 sta = ap_get_sta(hapd, mac_addr);
1532 #ifndef CONFIG_WPS_STRICT
1533 if (!sta) {
1534 /*
1535 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1536 * Pick STA that is in an ongoing WPS registration without
1537 * checking the MAC address.
1538 */
1539 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1540 "on NewWLANEventMAC; try wildcard match");
1541 for (sta = hapd->sta_list; sta; sta = sta->next) {
1542 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1543 break;
1544 }
1545 }
1546 #endif /* CONFIG_WPS_STRICT */
1547
1548 if (!sta || !(sta->flags & WLAN_STA_WPS)) {
1549 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1550 return 0;
1551 }
1552
1553 if (!sta->eapol_sm) {
1554 /*
1555 * This can happen, e.g., if an ER sends an extra message after
1556 * the station has disassociated (but not fully
1557 * deauthenticated).
1558 */
1559 wpa_printf(MSG_DEBUG, "WPS UPnP: Matching STA did not have EAPOL state machine initialized");
1560 return 0;
1561 }
1562
1563 p = os_zalloc(sizeof(*p));
1564 if (p == NULL)
1565 return -1;
1566 os_memcpy(p->addr, sta->addr, ETH_ALEN);
1567 p->msg = wpabuf_dup(msg);
1568 p->type = msg_type;
1569 p->next = hapd->wps->upnp_msgs;
1570 hapd->wps->upnp_msgs = p;
1571
1572 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1573 }
1574
1575
hostapd_wps_upnp_init(struct hostapd_data * hapd,struct wps_context * wps)1576 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1577 struct wps_context *wps)
1578 {
1579 struct upnp_wps_device_ctx *ctx;
1580
1581 if (!hapd->conf->upnp_iface)
1582 return 0;
1583 ctx = os_zalloc(sizeof(*ctx));
1584 if (ctx == NULL)
1585 return -1;
1586
1587 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1588 if (hapd->conf->ap_pin)
1589 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1590
1591 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1592 hapd->conf->upnp_iface);
1593 if (hapd->wps_upnp == NULL)
1594 return -1;
1595 wps->wps_upnp = hapd->wps_upnp;
1596
1597 return 0;
1598 }
1599
1600
hostapd_wps_upnp_deinit(struct hostapd_data * hapd)1601 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1602 {
1603 upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1604 }
1605
1606 #endif /* CONFIG_WPS_UPNP */
1607
1608
hostapd_wps_get_mib_sta(struct hostapd_data * hapd,const u8 * addr,char * buf,size_t buflen)1609 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1610 char *buf, size_t buflen)
1611 {
1612 if (hapd->wps == NULL)
1613 return 0;
1614 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1615 }
1616
1617
hostapd_wps_ap_pin_timeout(void * eloop_data,void * user_ctx)1618 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1619 {
1620 struct hostapd_data *hapd = eloop_data;
1621 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1622 hostapd_wps_ap_pin_disable(hapd);
1623 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
1624 }
1625
1626
hostapd_wps_ap_pin_enable(struct hostapd_data * hapd,int timeout)1627 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1628 {
1629 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1630 hapd->ap_pin_failures = 0;
1631 hapd->ap_pin_failures_consecutive = 0;
1632 hapd->conf->ap_setup_locked = 0;
1633 if (hapd->wps->ap_setup_locked) {
1634 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1635 hapd->wps->ap_setup_locked = 0;
1636 wps_registrar_update_ie(hapd->wps->registrar);
1637 }
1638 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1639 if (timeout > 0)
1640 eloop_register_timeout(timeout, 0,
1641 hostapd_wps_ap_pin_timeout, hapd, NULL);
1642 }
1643
1644
wps_ap_pin_disable(struct hostapd_data * hapd,void * ctx)1645 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1646 {
1647 os_free(hapd->conf->ap_pin);
1648 hapd->conf->ap_pin = NULL;
1649 #ifdef CONFIG_WPS_UPNP
1650 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1651 #endif /* CONFIG_WPS_UPNP */
1652 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1653 return 0;
1654 }
1655
1656
hostapd_wps_ap_pin_disable(struct hostapd_data * hapd)1657 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1658 {
1659 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1660 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1661 }
1662
1663
1664 struct wps_ap_pin_data {
1665 char pin_txt[9];
1666 int timeout;
1667 };
1668
1669
wps_ap_pin_set(struct hostapd_data * hapd,void * ctx)1670 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1671 {
1672 struct wps_ap_pin_data *data = ctx;
1673
1674 if (!hapd->wps)
1675 return 0;
1676
1677 os_free(hapd->conf->ap_pin);
1678 hapd->conf->ap_pin = os_strdup(data->pin_txt);
1679 #ifdef CONFIG_WPS_UPNP
1680 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1681 #endif /* CONFIG_WPS_UPNP */
1682 hostapd_wps_ap_pin_enable(hapd, data->timeout);
1683 return 0;
1684 }
1685
1686
hostapd_wps_ap_pin_random(struct hostapd_data * hapd,int timeout)1687 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1688 {
1689 unsigned int pin;
1690 struct wps_ap_pin_data data;
1691
1692 if (wps_generate_pin(&pin) < 0)
1693 return NULL;
1694 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
1695 data.timeout = timeout;
1696 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1697 return hapd->conf->ap_pin;
1698 }
1699
1700
hostapd_wps_ap_pin_get(struct hostapd_data * hapd)1701 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1702 {
1703 return hapd->conf->ap_pin;
1704 }
1705
1706
hostapd_wps_ap_pin_set(struct hostapd_data * hapd,const char * pin,int timeout)1707 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1708 int timeout)
1709 {
1710 struct wps_ap_pin_data data;
1711 int ret;
1712
1713 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1714 if (os_snprintf_error(sizeof(data.pin_txt), ret))
1715 return -1;
1716 data.timeout = timeout;
1717 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1718 }
1719
1720
wps_update_ie(struct hostapd_data * hapd,void * ctx)1721 static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1722 {
1723 if (hapd->wps)
1724 wps_registrar_update_ie(hapd->wps->registrar);
1725 return 0;
1726 }
1727
1728
hostapd_wps_update_ie(struct hostapd_data * hapd)1729 void hostapd_wps_update_ie(struct hostapd_data *hapd)
1730 {
1731 hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1732 }
1733
1734
hostapd_wps_config_ap(struct hostapd_data * hapd,const char * ssid,const char * auth,const char * encr,const char * key)1735 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1736 const char *auth, const char *encr, const char *key)
1737 {
1738 struct wps_credential cred;
1739 size_t len;
1740
1741 os_memset(&cred, 0, sizeof(cred));
1742
1743 len = os_strlen(ssid);
1744 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1745 hexstr2bin(ssid, cred.ssid, len / 2))
1746 return -1;
1747 cred.ssid_len = len / 2;
1748
1749 if (os_strncmp(auth, "OPEN", 4) == 0)
1750 cred.auth_type = WPS_AUTH_OPEN;
1751 else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1752 cred.auth_type = WPS_AUTH_WPAPSK;
1753 else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1754 cred.auth_type = WPS_AUTH_WPA2PSK;
1755 else
1756 return -1;
1757
1758 if (encr) {
1759 if (os_strncmp(encr, "NONE", 4) == 0)
1760 cred.encr_type = WPS_ENCR_NONE;
1761 else if (os_strncmp(encr, "TKIP", 4) == 0)
1762 cred.encr_type = WPS_ENCR_TKIP;
1763 else if (os_strncmp(encr, "CCMP", 4) == 0)
1764 cred.encr_type = WPS_ENCR_AES;
1765 else
1766 return -1;
1767 } else
1768 cred.encr_type = WPS_ENCR_NONE;
1769
1770 if (key) {
1771 len = os_strlen(key);
1772 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1773 hexstr2bin(key, cred.key, len / 2))
1774 return -1;
1775 cred.key_len = len / 2;
1776 }
1777
1778 return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1779 }
1780
1781
1782 #ifdef CONFIG_WPS_NFC
1783
1784 struct wps_nfc_password_token_data {
1785 const u8 *oob_dev_pw;
1786 size_t oob_dev_pw_len;
1787 int added;
1788 };
1789
1790
wps_add_nfc_password_token(struct hostapd_data * hapd,void * ctx)1791 static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
1792 {
1793 struct wps_nfc_password_token_data *data = ctx;
1794 int ret;
1795
1796 if (hapd->wps == NULL)
1797 return 0;
1798 ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
1799 data->oob_dev_pw,
1800 data->oob_dev_pw_len);
1801 if (ret == 0)
1802 data->added++;
1803 return ret;
1804 }
1805
1806
hostapd_wps_add_nfc_password_token(struct hostapd_data * hapd,struct wps_parse_attr * attr)1807 static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
1808 struct wps_parse_attr *attr)
1809 {
1810 struct wps_nfc_password_token_data data;
1811
1812 data.oob_dev_pw = attr->oob_dev_password;
1813 data.oob_dev_pw_len = attr->oob_dev_password_len;
1814 data.added = 0;
1815 if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
1816 return -1;
1817 return data.added ? 0 : -1;
1818 }
1819
1820
hostapd_wps_nfc_tag_process(struct hostapd_data * hapd,const struct wpabuf * wps)1821 static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
1822 const struct wpabuf *wps)
1823 {
1824 struct wps_parse_attr attr;
1825
1826 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1827
1828 if (wps_parse_msg(wps, &attr)) {
1829 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1830 return -1;
1831 }
1832
1833 if (attr.oob_dev_password)
1834 return hostapd_wps_add_nfc_password_token(hapd, &attr);
1835
1836 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1837 return -1;
1838 }
1839
1840
hostapd_wps_nfc_tag_read(struct hostapd_data * hapd,const struct wpabuf * data)1841 int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
1842 const struct wpabuf *data)
1843 {
1844 const struct wpabuf *wps = data;
1845 struct wpabuf *tmp = NULL;
1846 int ret;
1847
1848 if (wpabuf_len(data) < 4)
1849 return -1;
1850
1851 if (*wpabuf_head_u8(data) != 0x10) {
1852 /* Assume this contains full NDEF record */
1853 tmp = ndef_parse_wifi(data);
1854 if (tmp == NULL) {
1855 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1856 return -1;
1857 }
1858 wps = tmp;
1859 }
1860
1861 ret = hostapd_wps_nfc_tag_process(hapd, wps);
1862 wpabuf_free(tmp);
1863 return ret;
1864 }
1865
1866
hostapd_wps_nfc_config_token(struct hostapd_data * hapd,int ndef)1867 struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
1868 int ndef)
1869 {
1870 struct wpabuf *ret;
1871
1872 if (hapd->wps == NULL)
1873 return NULL;
1874
1875 ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd),
1876 hapd->iconf->channel);
1877 if (ndef && ret) {
1878 struct wpabuf *tmp;
1879 tmp = ndef_build_wifi(ret);
1880 wpabuf_free(ret);
1881 if (tmp == NULL)
1882 return NULL;
1883 ret = tmp;
1884 }
1885
1886 return ret;
1887 }
1888
1889
hostapd_wps_nfc_hs_cr(struct hostapd_data * hapd,int ndef)1890 struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
1891 {
1892 struct wpabuf *ret;
1893
1894 if (hapd->wps == NULL)
1895 return NULL;
1896
1897 if (hapd->conf->wps_nfc_dh_pubkey == NULL) {
1898 struct wps_context *wps = hapd->wps;
1899 if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey,
1900 &hapd->conf->wps_nfc_dh_privkey) < 0)
1901 return NULL;
1902 hostapd_wps_nfc_clear(wps);
1903 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
1904 wps->ap_nfc_dh_pubkey =
1905 wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1906 wps->ap_nfc_dh_privkey =
1907 wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1908 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
1909 hostapd_wps_nfc_clear(wps);
1910 return NULL;
1911 }
1912 }
1913
1914 ret = wps_build_nfc_handover_sel(hapd->wps,
1915 hapd->conf->wps_nfc_dh_pubkey,
1916 hapd->own_addr, hapd->iface->freq);
1917
1918 if (ndef && ret) {
1919 struct wpabuf *tmp;
1920 tmp = ndef_build_wifi(ret);
1921 wpabuf_free(ret);
1922 if (tmp == NULL)
1923 return NULL;
1924 ret = tmp;
1925 }
1926
1927 return ret;
1928 }
1929
1930
hostapd_wps_nfc_report_handover(struct hostapd_data * hapd,const struct wpabuf * req,const struct wpabuf * sel)1931 int hostapd_wps_nfc_report_handover(struct hostapd_data *hapd,
1932 const struct wpabuf *req,
1933 const struct wpabuf *sel)
1934 {
1935 struct wpabuf *wps;
1936 int ret = -1;
1937 u16 wsc_len;
1938 const u8 *pos;
1939 struct wpabuf msg;
1940 struct wps_parse_attr attr;
1941 u16 dev_pw_id;
1942
1943 /*
1944 * Enrollee/station is always initiator of the NFC connection handover,
1945 * so use the request message here to find Enrollee public key hash.
1946 */
1947 wps = ndef_parse_wifi(req);
1948 if (wps == NULL)
1949 return -1;
1950 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
1951 "payload from NFC connection handover");
1952 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
1953 if (wpabuf_len(wps) < 2) {
1954 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
1955 "Message");
1956 goto out;
1957 }
1958 pos = wpabuf_head(wps);
1959 wsc_len = WPA_GET_BE16(pos);
1960 if (wsc_len > wpabuf_len(wps) - 2) {
1961 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
1962 "in rt Wi-Fi Handover Request Message", wsc_len);
1963 goto out;
1964 }
1965 pos += 2;
1966
1967 wpa_hexdump(MSG_DEBUG,
1968 "WPS: WSC attributes in Wi-Fi Handover Request Message",
1969 pos, wsc_len);
1970 if (wsc_len < wpabuf_len(wps) - 2) {
1971 wpa_hexdump(MSG_DEBUG,
1972 "WPS: Ignore extra data after WSC attributes",
1973 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
1974 }
1975
1976 wpabuf_set(&msg, pos, wsc_len);
1977 ret = wps_parse_msg(&msg, &attr);
1978 if (ret < 0) {
1979 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
1980 "Wi-Fi Handover Request Message");
1981 goto out;
1982 }
1983
1984 if (attr.oob_dev_password == NULL ||
1985 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
1986 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
1987 "included in Wi-Fi Handover Request Message");
1988 ret = -1;
1989 goto out;
1990 }
1991
1992 if (attr.uuid_e == NULL) {
1993 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
1994 "Handover Request Message");
1995 ret = -1;
1996 goto out;
1997 }
1998
1999 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
2000
2001 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2002 attr.oob_dev_password, attr.oob_dev_password_len);
2003 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2004 WPS_OOB_PUBKEY_HASH_LEN);
2005 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2006 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2007 "%u in Wi-Fi Handover Request Message", dev_pw_id);
2008 ret = -1;
2009 goto out;
2010 }
2011 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
2012 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2013
2014 ret = wps_registrar_add_nfc_pw_token(hapd->wps->registrar,
2015 attr.oob_dev_password,
2016 DEV_PW_NFC_CONNECTION_HANDOVER,
2017 NULL, 0, 1);
2018
2019 out:
2020 wpabuf_free(wps);
2021 return ret;
2022 }
2023
2024
hostapd_wps_nfc_token_gen(struct hostapd_data * hapd,int ndef)2025 struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
2026 {
2027 if (hapd->conf->wps_nfc_pw_from_config) {
2028 return wps_nfc_token_build(ndef,
2029 hapd->conf->wps_nfc_dev_pw_id,
2030 hapd->conf->wps_nfc_dh_pubkey,
2031 hapd->conf->wps_nfc_dev_pw);
2032 }
2033
2034 return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
2035 &hapd->conf->wps_nfc_dh_pubkey,
2036 &hapd->conf->wps_nfc_dh_privkey,
2037 &hapd->conf->wps_nfc_dev_pw);
2038 }
2039
2040
hostapd_wps_nfc_token_enable(struct hostapd_data * hapd)2041 int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
2042 {
2043 struct wps_context *wps = hapd->wps;
2044 struct wpabuf *pw;
2045
2046 if (wps == NULL)
2047 return -1;
2048
2049 if (!hapd->conf->wps_nfc_dh_pubkey ||
2050 !hapd->conf->wps_nfc_dh_privkey ||
2051 !hapd->conf->wps_nfc_dev_pw ||
2052 !hapd->conf->wps_nfc_dev_pw_id)
2053 return -1;
2054
2055 hostapd_wps_nfc_clear(wps);
2056 wpa_printf(MSG_DEBUG,
2057 "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)",
2058 hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps);
2059 wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
2060 wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
2061 wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
2062 pw = hapd->conf->wps_nfc_dev_pw;
2063 wps->ap_nfc_dev_pw = wpabuf_alloc(
2064 wpabuf_len(pw) * 2 + 1);
2065 if (wps->ap_nfc_dev_pw) {
2066 wpa_snprintf_hex_uppercase(
2067 (char *) wpabuf_put(wps->ap_nfc_dev_pw,
2068 wpabuf_len(pw) * 2),
2069 wpabuf_len(pw) * 2 + 1,
2070 wpabuf_head(pw), wpabuf_len(pw));
2071 }
2072
2073 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
2074 !wps->ap_nfc_dev_pw) {
2075 hostapd_wps_nfc_clear(wps);
2076 return -1;
2077 }
2078
2079 return 0;
2080 }
2081
2082
hostapd_wps_nfc_token_disable(struct hostapd_data * hapd)2083 void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
2084 {
2085 wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s",
2086 hapd->conf->iface);
2087 hostapd_wps_nfc_clear(hapd->wps);
2088 }
2089
2090 #endif /* CONFIG_WPS_NFC */
2091