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