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 :
53 733 : static int wps_for_each(struct hostapd_iface *iface, void *ctx)
54 : {
55 733 : struct wps_for_each_data *data = ctx;
56 : size_t j;
57 :
58 733 : if (iface == NULL)
59 0 : return 0;
60 1462 : for (j = 0; j < iface->num_bss; j++) {
61 733 : struct hostapd_data *hapd = iface->bss[j];
62 : int ret;
63 :
64 755 : if (hapd != data->calling_hapd &&
65 40 : (hapd->conf->wps_independent ||
66 18 : data->calling_hapd->conf->wps_independent))
67 4 : continue;
68 :
69 729 : ret = data->func(hapd, data->ctx);
70 729 : if (ret)
71 4 : return ret;
72 : }
73 :
74 729 : return 0;
75 : }
76 :
77 :
78 711 : static int hostapd_wps_for_each(struct hostapd_data *hapd,
79 : int (*func)(struct hostapd_data *h, void *ctx),
80 : void *ctx)
81 : {
82 711 : struct hostapd_iface *iface = hapd->iface;
83 : struct wps_for_each_data data;
84 711 : data.func = func;
85 711 : data.ctx = ctx;
86 711 : data.calling_hapd = hapd;
87 1061 : if (iface->interfaces == NULL ||
88 350 : iface->interfaces->for_each_interface == NULL)
89 361 : return wps_for_each(iface, &data);
90 350 : return iface->interfaces->for_each_interface(iface->interfaces,
91 : wps_for_each, &data);
92 : }
93 :
94 :
95 15 : 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 15 : struct hostapd_data *hapd = ctx;
100 : struct hostapd_wpa_psk *p;
101 15 : struct hostapd_ssid *ssid = &hapd->conf->ssid;
102 :
103 15 : if (is_zero_ether_addr(p2p_dev_addr)) {
104 48 : wpa_printf(MSG_DEBUG,
105 : "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
106 48 : MAC2STR(mac_addr));
107 : } else {
108 84 : wpa_printf(MSG_DEBUG,
109 : "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
110 : " P2P Device Addr " MACSTR,
111 84 : MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
112 : }
113 15 : wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
114 :
115 15 : 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 15 : p = os_zalloc(sizeof(*p));
123 15 : if (p == NULL)
124 0 : return -1;
125 15 : os_memcpy(p->addr, mac_addr, ETH_ALEN);
126 15 : os_memcpy(p->p2p_dev_addr, p2p_dev_addr, ETH_ALEN);
127 15 : os_memcpy(p->psk, psk, PMK_LEN);
128 :
129 15 : if (hapd->new_psk_cb) {
130 8 : hapd->new_psk_cb(hapd->new_psk_cb_ctx, mac_addr, p2p_dev_addr,
131 : psk, psk_len);
132 : }
133 :
134 15 : p->next = ssid->wpa_psk;
135 15 : ssid->wpa_psk = p;
136 :
137 15 : 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 7 : f = fopen(ssid->wpa_psk_file, "a");
142 7 : if (f == NULL) {
143 3 : wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
144 : "'%s'", ssid->wpa_psk_file);
145 3 : return -1;
146 : }
147 :
148 4 : wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
149 4 : fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
150 4 : fclose(f);
151 : }
152 :
153 12 : return 0;
154 : }
155 :
156 :
157 1539 : static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
158 : struct wpabuf *probe_resp_ie)
159 : {
160 1539 : struct hostapd_data *hapd = ctx;
161 1539 : wpabuf_free(hapd->wps_beacon_ie);
162 1539 : hapd->wps_beacon_ie = beacon_ie;
163 1539 : wpabuf_free(hapd->wps_probe_resp_ie);
164 1539 : hapd->wps_probe_resp_ie = probe_resp_ie;
165 1539 : if (hapd->beacon_set_done)
166 950 : ieee802_11_set_beacon(hapd);
167 1539 : return hostapd_set_ap_wps_ie(hapd);
168 : }
169 :
170 :
171 21 : static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
172 : const struct wps_device_data *dev)
173 : {
174 21 : struct hostapd_data *hapd = ctx;
175 : char uuid[40], txt[400];
176 : int len;
177 : char devtype[WPS_DEV_TYPE_BUFSIZE];
178 21 : if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
179 0 : return;
180 21 : wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
181 147 : len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
182 : "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
183 126 : uuid, MAC2STR(dev->mac_addr), dev->device_name,
184 : dev->manufacturer, dev->model_name,
185 : dev->model_number, dev->serial_number,
186 21 : wps_dev_type_bin2str(dev->pri_dev_type, devtype,
187 : sizeof(devtype)));
188 21 : if (!os_snprintf_error(sizeof(txt), len))
189 21 : wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
190 :
191 21 : if (hapd->conf->wps_pin_requests) {
192 : FILE *f;
193 : struct os_time t;
194 1 : f = fopen(hapd->conf->wps_pin_requests, "a");
195 1 : if (f == NULL)
196 0 : return;
197 1 : os_get_time(&t);
198 7 : fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
199 : "\t%s\n",
200 6 : t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
201 : dev->manufacturer, dev->model_name, dev->model_number,
202 : dev->serial_number,
203 1 : wps_dev_type_bin2str(dev->pri_dev_type, devtype,
204 : sizeof(devtype)));
205 1 : 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 :
217 236 : static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
218 : {
219 236 : struct wps_stop_reg_data *data = ctx;
220 236 : if (hapd != data->current_hapd && hapd->wps != NULL)
221 3 : wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
222 : data->dev_pw, data->dev_pw_len);
223 236 : return 0;
224 : }
225 :
226 :
227 231 : 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 : {
231 231 : struct hostapd_data *hapd = ctx;
232 : char uuid[40];
233 : struct wps_stop_reg_data data;
234 231 : if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
235 231 : return;
236 1386 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
237 1386 : MAC2STR(mac_addr), uuid);
238 231 : if (hapd->wps_reg_success_cb)
239 180 : hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
240 : mac_addr, uuid_e);
241 231 : data.current_hapd = hapd;
242 231 : data.uuid_e = uuid_e;
243 231 : data.dev_pw = dev_pw;
244 231 : data.dev_pw_len = dev_pw_len;
245 231 : hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
246 : }
247 :
248 :
249 1574 : 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 1574 : struct hostapd_data *hapd = ctx;
257 : char uuid[40];
258 : char devtype[WPS_DEV_TYPE_BUFSIZE];
259 1574 : if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
260 1574 : return;
261 1574 : if (dev_name == NULL)
262 0 : dev_name = "";
263 11018 : wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
264 : " %s %s 0x%x %u %u [%s]",
265 9444 : 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 91 : static int str_starts(const char *str, const char *start)
273 : {
274 91 : return os_strncmp(str, start, os_strlen(start)) == 0;
275 : }
276 :
277 :
278 20 : static void wps_reload_config(void *eloop_data, void *user_ctx)
279 : {
280 20 : struct hostapd_iface *iface = eloop_data;
281 :
282 20 : wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
283 40 : if (iface->interfaces == NULL ||
284 20 : iface->interfaces->reload_config(iface) < 0) {
285 0 : wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
286 : "configuration");
287 : }
288 20 : }
289 :
290 :
291 553 : 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 : */
299 553 : if (eloop_deplete_timeout(0, 0, wps_reload_config, hapd->iface, NULL) ==
300 : 1)
301 14 : wpa_printf(MSG_DEBUG, "WPS: Reschedule immediate configuration reload");
302 553 : }
303 :
304 :
305 2 : static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
306 : size_t attr_len)
307 : {
308 2 : size_t blen = attr_len * 2 + 1;
309 2 : char *buf = os_malloc(blen);
310 2 : if (buf) {
311 2 : wpa_snprintf_hex(buf, blen, attr, attr_len);
312 2 : wpa_msg(hapd->msg_ctx, MSG_INFO,
313 : WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
314 2 : os_free(buf);
315 : }
316 2 : }
317 :
318 :
319 19 : static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
320 : const struct wps_credential *cred)
321 : {
322 19 : struct hostapd_bss_config *bss = hapd->conf;
323 :
324 19 : wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
325 :
326 19 : bss->wps_state = 2;
327 19 : if (cred->ssid_len <= SSID_MAX_LEN) {
328 19 : os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
329 19 : bss->ssid.ssid_len = cred->ssid_len;
330 19 : bss->ssid.ssid_set = 1;
331 : }
332 :
333 35 : if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
334 16 : (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
335 9 : bss->wpa = 3;
336 10 : else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
337 7 : bss->wpa = 2;
338 3 : else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
339 0 : bss->wpa = 1;
340 : else
341 3 : bss->wpa = 0;
342 :
343 19 : if (bss->wpa) {
344 16 : if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
345 0 : bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
346 16 : if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
347 16 : bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
348 :
349 16 : bss->wpa_pairwise = 0;
350 16 : if (cred->encr_type & WPS_ENCR_AES) {
351 16 : if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD)
352 0 : bss->wpa_pairwise |= WPA_CIPHER_GCMP;
353 : else
354 16 : bss->wpa_pairwise |= WPA_CIPHER_CCMP;
355 : }
356 16 : if (cred->encr_type & WPS_ENCR_TKIP)
357 9 : bss->wpa_pairwise |= WPA_CIPHER_TKIP;
358 16 : bss->rsn_pairwise = bss->wpa_pairwise;
359 16 : bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
360 : bss->wpa_pairwise,
361 : bss->rsn_pairwise);
362 :
363 16 : if (cred->key_len >= 8 && cred->key_len < 64) {
364 16 : os_free(bss->ssid.wpa_passphrase);
365 16 : bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
366 16 : if (bss->ssid.wpa_passphrase)
367 16 : os_memcpy(bss->ssid.wpa_passphrase, cred->key,
368 : cred->key_len);
369 16 : hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk);
370 0 : } else if (cred->key_len == 64) {
371 0 : hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk);
372 0 : bss->ssid.wpa_psk =
373 0 : os_zalloc(sizeof(struct hostapd_wpa_psk));
374 0 : if (bss->ssid.wpa_psk &&
375 0 : hexstr2bin((const char *) cred->key,
376 0 : bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
377 0 : bss->ssid.wpa_psk->group = 1;
378 0 : os_free(bss->ssid.wpa_passphrase);
379 0 : bss->ssid.wpa_passphrase = NULL;
380 : }
381 : }
382 16 : bss->auth_algs = 1;
383 : } else {
384 : /*
385 : * WPS 2.0 does not allow WEP to be configured, so no need to
386 : * process that option here either.
387 : */
388 3 : bss->auth_algs = 1;
389 : }
390 :
391 : /* Schedule configuration reload after short period of time to allow
392 : * EAP-WSC to be finished.
393 : */
394 19 : eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
395 : NULL);
396 :
397 19 : return 0;
398 : }
399 :
400 :
401 22 : static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
402 : {
403 22 : const struct wps_credential *cred = ctx;
404 : FILE *oconf, *nconf;
405 : size_t len, i;
406 : char *tmp_fname;
407 : char buf[1024];
408 : int multi_bss;
409 : int wpa;
410 :
411 22 : if (hapd->wps == NULL)
412 0 : return 0;
413 :
414 44 : wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
415 22 : cred->cred_attr, cred->cred_attr_len);
416 :
417 22 : wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
418 22 : wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
419 22 : wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
420 22 : cred->auth_type);
421 22 : wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
422 22 : wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
423 44 : wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
424 22 : cred->key, cred->key_len);
425 132 : wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
426 132 : MAC2STR(cred->mac_addr));
427 :
428 43 : if ((hapd->conf->wps_cred_processing == 1 ||
429 23 : hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
430 1 : hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
431 42 : } else if (hapd->conf->wps_cred_processing == 1 ||
432 22 : hapd->conf->wps_cred_processing == 2) {
433 : struct wpabuf *attr;
434 1 : attr = wpabuf_alloc(200);
435 1 : if (attr && wps_build_credential_wrap(attr, cred) == 0)
436 1 : hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
437 : wpabuf_len(attr));
438 1 : wpabuf_free(attr);
439 : } else
440 20 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
441 :
442 22 : if (hapd->conf->wps_cred_processing == 1)
443 1 : return 0;
444 :
445 21 : os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
446 21 : hapd->wps->ssid_len = cred->ssid_len;
447 21 : hapd->wps->encr_types = cred->encr_type;
448 21 : hapd->wps->auth_types = cred->auth_type;
449 21 : hapd->wps->ap_encr_type = cred->encr_type;
450 21 : hapd->wps->ap_auth_type = cred->auth_type;
451 21 : if (cred->key_len == 0) {
452 3 : os_free(hapd->wps->network_key);
453 3 : hapd->wps->network_key = NULL;
454 3 : hapd->wps->network_key_len = 0;
455 36 : } else if ((cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) &&
456 35 : (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN)) {
457 1 : wpa_printf(MSG_INFO, "WPS: Invalid key length %lu for WPA/WPA2",
458 : (unsigned long) cred->key_len);
459 1 : return -1;
460 : } else {
461 18 : if (hapd->wps->network_key == NULL ||
462 1 : hapd->wps->network_key_len < cred->key_len) {
463 17 : hapd->wps->network_key_len = 0;
464 17 : os_free(hapd->wps->network_key);
465 17 : hapd->wps->network_key = os_malloc(cred->key_len);
466 17 : if (hapd->wps->network_key == NULL)
467 0 : return -1;
468 : }
469 17 : hapd->wps->network_key_len = cred->key_len;
470 17 : os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
471 : }
472 20 : hapd->wps->wps_state = WPS_STATE_CONFIGURED;
473 :
474 20 : if (hapd->iface->config_fname == NULL)
475 19 : return hapd_wps_reconfig_in_memory(hapd, cred);
476 1 : len = os_strlen(hapd->iface->config_fname) + 5;
477 1 : tmp_fname = os_malloc(len);
478 1 : if (tmp_fname == NULL)
479 0 : return -1;
480 1 : os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
481 :
482 1 : oconf = fopen(hapd->iface->config_fname, "r");
483 1 : if (oconf == NULL) {
484 0 : wpa_printf(MSG_WARNING, "WPS: Could not open current "
485 : "configuration file");
486 0 : os_free(tmp_fname);
487 0 : return -1;
488 : }
489 :
490 1 : nconf = fopen(tmp_fname, "w");
491 1 : if (nconf == NULL) {
492 0 : wpa_printf(MSG_WARNING, "WPS: Could not write updated "
493 : "configuration file");
494 0 : os_free(tmp_fname);
495 0 : fclose(oconf);
496 0 : return -1;
497 : }
498 :
499 1 : fprintf(nconf, "# WPS configuration - START\n");
500 :
501 1 : fprintf(nconf, "wps_state=2\n");
502 :
503 1 : if (is_hex(cred->ssid, cred->ssid_len)) {
504 0 : fprintf(nconf, "ssid2=");
505 0 : for (i = 0; i < cred->ssid_len; i++)
506 0 : fprintf(nconf, "%02x", cred->ssid[i]);
507 0 : fprintf(nconf, "\n");
508 : } else {
509 1 : fprintf(nconf, "ssid=");
510 4 : for (i = 0; i < cred->ssid_len; i++)
511 3 : fputc(cred->ssid[i], nconf);
512 1 : fprintf(nconf, "\n");
513 : }
514 :
515 2 : if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
516 1 : (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
517 1 : wpa = 3;
518 0 : else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
519 0 : wpa = 2;
520 0 : else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
521 0 : wpa = 1;
522 : else
523 0 : wpa = 0;
524 :
525 1 : if (wpa) {
526 : char *prefix;
527 1 : fprintf(nconf, "wpa=%d\n", wpa);
528 :
529 1 : fprintf(nconf, "wpa_key_mgmt=");
530 1 : prefix = "";
531 1 : if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
532 0 : fprintf(nconf, "WPA-EAP");
533 0 : prefix = " ";
534 : }
535 1 : if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
536 1 : fprintf(nconf, "%sWPA-PSK", prefix);
537 1 : fprintf(nconf, "\n");
538 :
539 1 : fprintf(nconf, "wpa_pairwise=");
540 1 : prefix = "";
541 1 : if (cred->encr_type & WPS_ENCR_AES) {
542 1 : if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD)
543 0 : fprintf(nconf, "GCMP");
544 : else
545 1 : fprintf(nconf, "CCMP");
546 :
547 1 : prefix = " ";
548 : }
549 1 : if (cred->encr_type & WPS_ENCR_TKIP) {
550 1 : fprintf(nconf, "%sTKIP", prefix);
551 : }
552 1 : fprintf(nconf, "\n");
553 :
554 1 : if (cred->key_len >= 8 && cred->key_len < 64) {
555 1 : fprintf(nconf, "wpa_passphrase=");
556 23 : for (i = 0; i < cred->key_len; i++)
557 22 : fputc(cred->key[i], nconf);
558 1 : fprintf(nconf, "\n");
559 0 : } else if (cred->key_len == 64) {
560 0 : fprintf(nconf, "wpa_psk=");
561 0 : for (i = 0; i < cred->key_len; i++)
562 0 : fputc(cred->key[i], nconf);
563 0 : fprintf(nconf, "\n");
564 : } else {
565 0 : wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
566 : "for WPA/WPA2",
567 : (unsigned long) cred->key_len);
568 : }
569 :
570 1 : fprintf(nconf, "auth_algs=1\n");
571 : } else {
572 : /*
573 : * WPS 2.0 does not allow WEP to be configured, so no need to
574 : * process that option here either.
575 : */
576 0 : fprintf(nconf, "auth_algs=1\n");
577 : }
578 :
579 1 : fprintf(nconf, "# WPS configuration - END\n");
580 :
581 1 : multi_bss = 0;
582 11 : while (fgets(buf, sizeof(buf), oconf)) {
583 9 : if (os_strncmp(buf, "bss=", 4) == 0)
584 0 : multi_bss = 1;
585 18 : if (!multi_bss &&
586 17 : (str_starts(buf, "ssid=") ||
587 16 : str_starts(buf, "ssid2=") ||
588 16 : str_starts(buf, "auth_algs=") ||
589 16 : str_starts(buf, "wep_default_key=") ||
590 16 : str_starts(buf, "wep_key") ||
591 15 : str_starts(buf, "wps_state=") ||
592 14 : str_starts(buf, "wpa=") ||
593 14 : str_starts(buf, "wpa_psk=") ||
594 14 : str_starts(buf, "wpa_pairwise=") ||
595 14 : str_starts(buf, "rsn_pairwise=") ||
596 14 : str_starts(buf, "wpa_key_mgmt=") ||
597 7 : str_starts(buf, "wpa_passphrase="))) {
598 2 : fprintf(nconf, "#WPS# %s", buf);
599 : } else
600 7 : fprintf(nconf, "%s", buf);
601 : }
602 :
603 1 : fclose(nconf);
604 1 : fclose(oconf);
605 :
606 1 : if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
607 0 : wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
608 0 : "configuration file: %s", strerror(errno));
609 0 : os_free(tmp_fname);
610 0 : return -1;
611 : }
612 :
613 1 : os_free(tmp_fname);
614 :
615 : /* Schedule configuration reload after short period of time to allow
616 : * EAP-WSC to be finished.
617 : */
618 1 : eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
619 : NULL);
620 :
621 1 : wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
622 :
623 1 : return 0;
624 : }
625 :
626 :
627 20 : static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
628 : {
629 20 : struct hostapd_data *hapd = ctx;
630 20 : return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
631 : }
632 :
633 :
634 1 : static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
635 : {
636 1 : struct hostapd_data *hapd = eloop_data;
637 :
638 1 : if (hapd->conf->ap_setup_locked)
639 0 : return;
640 1 : if (hapd->ap_pin_failures_consecutive >= 10)
641 0 : return;
642 :
643 1 : wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
644 1 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
645 1 : hapd->wps->ap_setup_locked = 0;
646 1 : wps_registrar_update_ie(hapd->wps->registrar);
647 : }
648 :
649 :
650 11 : static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
651 : {
652 11 : struct wps_event_pwd_auth_fail *data = ctx;
653 :
654 11 : if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
655 2 : return 0;
656 :
657 : /*
658 : * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
659 : * for some time if this happens multiple times to slow down brute
660 : * force attacks.
661 : */
662 9 : hapd->ap_pin_failures++;
663 9 : hapd->ap_pin_failures_consecutive++;
664 9 : wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
665 : "(%u consecutive)",
666 : hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
667 9 : if (hapd->ap_pin_failures < 3)
668 6 : return 0;
669 :
670 3 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
671 3 : hapd->wps->ap_setup_locked = 1;
672 :
673 3 : wps_registrar_update_ie(hapd->wps->registrar);
674 :
675 5 : if (!hapd->conf->ap_setup_locked &&
676 2 : hapd->ap_pin_failures_consecutive >= 10) {
677 : /*
678 : * In indefinite lockdown - disable automatic AP PIN
679 : * reenablement.
680 : */
681 0 : eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
682 0 : wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
683 3 : } else if (!hapd->conf->ap_setup_locked) {
684 2 : if (hapd->ap_pin_lockout_time == 0)
685 2 : hapd->ap_pin_lockout_time = 60;
686 0 : else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
687 0 : (hapd->ap_pin_failures % 3) == 0)
688 0 : hapd->ap_pin_lockout_time *= 2;
689 :
690 2 : wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
691 : hapd->ap_pin_lockout_time);
692 2 : eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
693 2 : eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
694 : hostapd_wps_reenable_ap_pin, hapd,
695 : NULL);
696 : }
697 :
698 3 : return 0;
699 : }
700 :
701 :
702 11 : static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
703 : struct wps_event_pwd_auth_fail *data)
704 : {
705 : /* Update WPS Status - Authentication Failure */
706 11 : wpa_printf(MSG_DEBUG, "WPS: Authentication failure update");
707 11 : hapd->wps_stats.status = WPS_STATUS_FAILURE;
708 11 : hapd->wps_stats.failure_reason = WPS_EI_AUTH_FAILURE;
709 11 : os_memcpy(hapd->wps_stats.peer_addr, data->peer_macaddr, ETH_ALEN);
710 :
711 11 : hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
712 11 : }
713 :
714 :
715 55 : static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
716 : {
717 55 : if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
718 2 : return 0;
719 :
720 53 : if (hapd->ap_pin_failures_consecutive == 0)
721 53 : return 0;
722 :
723 0 : wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
724 : "- total validation failures %u (%u consecutive)",
725 : hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
726 0 : hapd->ap_pin_failures_consecutive = 0;
727 :
728 0 : return 0;
729 : }
730 :
731 :
732 54 : static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
733 : {
734 54 : hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
735 54 : }
736 :
737 :
738 12 : static void hostapd_wps_event_pbc_overlap(struct hostapd_data *hapd)
739 : {
740 : /* Update WPS Status - PBC Overlap */
741 12 : hapd->wps_stats.pbc_status = WPS_PBC_STATUS_OVERLAP;
742 12 : }
743 :
744 :
745 6 : static void hostapd_wps_event_pbc_timeout(struct hostapd_data *hapd)
746 : {
747 : /* Update WPS PBC Status:PBC Timeout */
748 6 : hapd->wps_stats.pbc_status = WPS_PBC_STATUS_TIMEOUT;
749 6 : }
750 :
751 :
752 111 : static void hostapd_wps_event_pbc_active(struct hostapd_data *hapd)
753 : {
754 : /* Update WPS PBC status - Active */
755 111 : hapd->wps_stats.pbc_status = WPS_PBC_STATUS_ACTIVE;
756 111 : }
757 :
758 :
759 50 : static void hostapd_wps_event_pbc_disable(struct hostapd_data *hapd)
760 : {
761 : /* Update WPS PBC status - Active */
762 50 : hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
763 50 : }
764 :
765 :
766 239 : static void hostapd_wps_event_success(struct hostapd_data *hapd,
767 : struct wps_event_success *success)
768 : {
769 : /* Update WPS status - Success */
770 239 : hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
771 239 : hapd->wps_stats.status = WPS_STATUS_SUCCESS;
772 239 : os_memcpy(hapd->wps_stats.peer_addr, success->peer_macaddr, ETH_ALEN);
773 239 : }
774 :
775 :
776 98 : static void hostapd_wps_event_fail(struct hostapd_data *hapd,
777 : struct wps_event_fail *fail)
778 : {
779 : /* Update WPS status - Failure */
780 98 : hapd->wps_stats.status = WPS_STATUS_FAILURE;
781 98 : os_memcpy(hapd->wps_stats.peer_addr, fail->peer_macaddr, ETH_ALEN);
782 :
783 98 : hapd->wps_stats.failure_reason = fail->error_indication;
784 :
785 99 : if (fail->error_indication > 0 &&
786 1 : fail->error_indication < NUM_WPS_EI_VALUES) {
787 3 : wpa_msg(hapd->msg_ctx, MSG_INFO,
788 : WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
789 2 : fail->msg, fail->config_error, fail->error_indication,
790 1 : wps_ei_str(fail->error_indication));
791 : } else {
792 97 : wpa_msg(hapd->msg_ctx, MSG_INFO,
793 : WPS_EVENT_FAIL "msg=%d config_error=%d",
794 97 : fail->msg, fail->config_error);
795 : }
796 98 : }
797 :
798 :
799 582 : static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
800 : union wps_event_data *data)
801 : {
802 582 : struct hostapd_data *hapd = ctx;
803 :
804 582 : switch (event) {
805 : case WPS_EV_M2D:
806 1 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
807 1 : break;
808 : case WPS_EV_FAIL:
809 98 : hostapd_wps_event_fail(hapd, &data->fail);
810 98 : break;
811 : case WPS_EV_SUCCESS:
812 239 : hostapd_wps_event_success(hapd, &data->success);
813 239 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
814 239 : break;
815 : case WPS_EV_PWD_AUTH_FAIL:
816 11 : hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
817 11 : break;
818 : case WPS_EV_PBC_OVERLAP:
819 12 : hostapd_wps_event_pbc_overlap(hapd);
820 12 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
821 12 : break;
822 : case WPS_EV_PBC_TIMEOUT:
823 6 : hostapd_wps_event_pbc_timeout(hapd);
824 6 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
825 6 : break;
826 : case WPS_EV_PBC_ACTIVE:
827 111 : hostapd_wps_event_pbc_active(hapd);
828 111 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ACTIVE);
829 111 : break;
830 : case WPS_EV_PBC_DISABLE:
831 50 : hostapd_wps_event_pbc_disable(hapd);
832 50 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_DISABLE);
833 50 : break;
834 : case WPS_EV_ER_AP_ADD:
835 0 : break;
836 : case WPS_EV_ER_AP_REMOVE:
837 0 : break;
838 : case WPS_EV_ER_ENROLLEE_ADD:
839 0 : break;
840 : case WPS_EV_ER_ENROLLEE_REMOVE:
841 0 : break;
842 : case WPS_EV_ER_AP_SETTINGS:
843 0 : break;
844 : case WPS_EV_ER_SET_SELECTED_REGISTRAR:
845 0 : break;
846 : case WPS_EV_AP_PIN_SUCCESS:
847 54 : hostapd_wps_ap_pin_success(hapd);
848 54 : break;
849 : }
850 582 : if (hapd->wps_event_cb)
851 258 : hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
852 582 : }
853 :
854 :
855 452 : static int hostapd_wps_rf_band_cb(void *ctx)
856 : {
857 452 : struct hostapd_data *hapd = ctx;
858 :
859 904 : return hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
860 897 : WPS_RF_50GHZ :
861 445 : hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ?
862 445 : WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
863 : }
864 :
865 :
866 3514 : static void hostapd_wps_clear_ies(struct hostapd_data *hapd, int deinit_only)
867 : {
868 3514 : wpabuf_free(hapd->wps_beacon_ie);
869 3514 : hapd->wps_beacon_ie = NULL;
870 :
871 3514 : wpabuf_free(hapd->wps_probe_resp_ie);
872 3514 : hapd->wps_probe_resp_ie = NULL;
873 :
874 3514 : if (deinit_only) {
875 2055 : hostapd_reset_ap_wps_ie(hapd);
876 5569 : return;
877 : }
878 :
879 1459 : hostapd_set_ap_wps_ie(hapd);
880 : }
881 :
882 :
883 209 : static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
884 : {
885 209 : const u8 **uuid = ctx;
886 : size_t j;
887 :
888 209 : if (iface == NULL)
889 0 : return 0;
890 414 : for (j = 0; j < iface->num_bss; j++) {
891 209 : struct hostapd_data *hapd = iface->bss[j];
892 213 : if (hapd->wps && !hapd->conf->wps_independent &&
893 4 : !is_nil_uuid(hapd->wps->uuid)) {
894 4 : *uuid = hapd->wps->uuid;
895 4 : return 1;
896 : }
897 : }
898 :
899 205 : return 0;
900 : }
901 :
902 :
903 207 : static const u8 * get_own_uuid(struct hostapd_iface *iface)
904 : {
905 : const u8 *uuid;
906 414 : if (iface->interfaces == NULL ||
907 207 : iface->interfaces->for_each_interface == NULL)
908 0 : return NULL;
909 207 : uuid = NULL;
910 207 : iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
911 : &uuid);
912 207 : return uuid;
913 : }
914 :
915 :
916 262 : static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
917 : {
918 262 : int *count= ctx;
919 262 : (*count)++;
920 262 : return 0;
921 : }
922 :
923 :
924 592 : static int interface_count(struct hostapd_iface *iface)
925 : {
926 592 : int count = 0;
927 847 : if (iface->interfaces == NULL ||
928 255 : iface->interfaces->for_each_interface == NULL)
929 337 : return 0;
930 255 : iface->interfaces->for_each_interface(iface->interfaces,
931 : count_interface_cb, &count);
932 255 : return count;
933 : }
934 :
935 :
936 614 : static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
937 : struct wps_context *wps)
938 : {
939 : int i;
940 :
941 6754 : for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
942 6140 : wpabuf_free(wps->dev.vendor_ext[i]);
943 6140 : wps->dev.vendor_ext[i] = NULL;
944 :
945 6140 : if (hapd->conf->wps_vendor_ext[i] == NULL)
946 6137 : continue;
947 :
948 3 : wps->dev.vendor_ext[i] =
949 3 : wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
950 3 : if (wps->dev.vendor_ext[i] == NULL) {
951 0 : while (--i >= 0)
952 0 : wpabuf_free(wps->dev.vendor_ext[i]);
953 0 : return -1;
954 : }
955 : }
956 :
957 614 : return 0;
958 : }
959 :
960 :
961 592 : static void hostapd_free_wps(struct wps_context *wps)
962 : {
963 : int i;
964 :
965 6512 : for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
966 5920 : wpabuf_free(wps->dev.vendor_ext[i]);
967 592 : wps_device_data_free(&wps->dev);
968 592 : os_free(wps->network_key);
969 592 : hostapd_wps_nfc_clear(wps);
970 592 : wpabuf_free(wps->dh_pubkey);
971 592 : wpabuf_free(wps->dh_privkey);
972 592 : os_free(wps);
973 592 : }
974 :
975 :
976 2051 : int hostapd_init_wps(struct hostapd_data *hapd,
977 : struct hostapd_bss_config *conf)
978 : {
979 : struct wps_context *wps;
980 : struct wps_registrar_config cfg;
981 :
982 2051 : if (conf->wps_state == 0) {
983 1459 : hostapd_wps_clear_ies(hapd, 0);
984 1459 : return 0;
985 : }
986 :
987 592 : wps = os_zalloc(sizeof(*wps));
988 592 : if (wps == NULL)
989 0 : return -1;
990 :
991 592 : wps->cred_cb = hostapd_wps_cred_cb;
992 592 : wps->event_cb = hostapd_wps_event_cb;
993 592 : wps->rf_band_cb = hostapd_wps_rf_band_cb;
994 592 : wps->cb_ctx = hapd;
995 :
996 592 : os_memset(&cfg, 0, sizeof(cfg));
997 592 : wps->wps_state = hapd->conf->wps_state;
998 592 : wps->ap_setup_locked = hapd->conf->ap_setup_locked;
999 592 : if (is_nil_uuid(hapd->conf->uuid)) {
1000 : const u8 *uuid;
1001 207 : uuid = get_own_uuid(hapd->iface);
1002 207 : if (uuid && !conf->wps_independent) {
1003 4 : os_memcpy(wps->uuid, uuid, UUID_LEN);
1004 4 : wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
1005 4 : "interface", wps->uuid, UUID_LEN);
1006 : } else {
1007 203 : uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
1008 203 : wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1009 203 : "address", wps->uuid, UUID_LEN);
1010 : }
1011 : } else {
1012 385 : os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
1013 385 : wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
1014 385 : wps->uuid, UUID_LEN);
1015 : }
1016 592 : wps->ssid_len = hapd->conf->ssid.ssid_len;
1017 592 : os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
1018 592 : wps->ap = 1;
1019 592 : os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
1020 1184 : wps->dev.device_name = hapd->conf->device_name ?
1021 592 : os_strdup(hapd->conf->device_name) : NULL;
1022 1184 : wps->dev.manufacturer = hapd->conf->manufacturer ?
1023 592 : os_strdup(hapd->conf->manufacturer) : NULL;
1024 1184 : wps->dev.model_name = hapd->conf->model_name ?
1025 592 : os_strdup(hapd->conf->model_name) : NULL;
1026 1184 : wps->dev.model_number = hapd->conf->model_number ?
1027 592 : os_strdup(hapd->conf->model_number) : NULL;
1028 1184 : wps->dev.serial_number = hapd->conf->serial_number ?
1029 592 : os_strdup(hapd->conf->serial_number) : NULL;
1030 592 : wps->config_methods =
1031 592 : wps_config_methods_str2bin(hapd->conf->config_methods);
1032 592 : if ((wps->config_methods &
1033 : (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1034 : WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1035 1 : wpa_printf(MSG_INFO, "WPS: Converting display to "
1036 : "virtual_display for WPS 2.0 compliance");
1037 1 : wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1038 : }
1039 592 : if ((wps->config_methods &
1040 : (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1041 : WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1042 38 : wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1043 : "virtual_push_button for WPS 2.0 compliance");
1044 38 : wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1045 : }
1046 592 : os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
1047 : WPS_DEV_TYPE_LEN);
1048 :
1049 592 : if (hostapd_wps_set_vendor_ext(hapd, wps) < 0)
1050 0 : goto fail;
1051 :
1052 592 : wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
1053 :
1054 592 : if (conf->wps_rf_bands) {
1055 0 : wps->dev.rf_bands = conf->wps_rf_bands;
1056 : } else {
1057 1169 : wps->dev.rf_bands =
1058 592 : hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
1059 : WPS_RF_50GHZ :
1060 577 : hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ?
1061 : WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
1062 : }
1063 :
1064 592 : if (conf->wpa & WPA_PROTO_RSN) {
1065 550 : if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1066 547 : wps->auth_types |= WPS_AUTH_WPA2PSK;
1067 550 : if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1068 2 : wps->auth_types |= WPS_AUTH_WPA2;
1069 :
1070 550 : if (conf->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP))
1071 550 : wps->encr_types |= WPS_ENCR_AES;
1072 550 : if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
1073 3 : wps->encr_types |= WPS_ENCR_TKIP;
1074 : }
1075 :
1076 592 : if (conf->wpa & WPA_PROTO_WPA) {
1077 5 : if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1078 5 : wps->auth_types |= WPS_AUTH_WPAPSK;
1079 5 : if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1080 2 : wps->auth_types |= WPS_AUTH_WPA;
1081 :
1082 5 : if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
1083 3 : wps->encr_types |= WPS_ENCR_AES;
1084 5 : if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
1085 5 : wps->encr_types |= WPS_ENCR_TKIP;
1086 : }
1087 :
1088 592 : if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
1089 42 : wps->encr_types |= WPS_ENCR_NONE;
1090 42 : wps->auth_types |= WPS_AUTH_OPEN;
1091 : }
1092 :
1093 592 : if (conf->ssid.wpa_psk_file) {
1094 : /* Use per-device PSKs */
1095 589 : } else if (conf->ssid.wpa_passphrase) {
1096 218 : wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1097 218 : wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1098 371 : } else if (conf->ssid.wpa_psk) {
1099 329 : wps->network_key = os_malloc(2 * PMK_LEN + 1);
1100 329 : if (wps->network_key == NULL)
1101 0 : goto fail;
1102 329 : wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1103 329 : conf->ssid.wpa_psk->psk, PMK_LEN);
1104 329 : wps->network_key_len = 2 * PMK_LEN;
1105 42 : } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1106 0 : wps->network_key = os_malloc(conf->ssid.wep.len[0]);
1107 0 : if (wps->network_key == NULL)
1108 0 : goto fail;
1109 0 : os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1110 : conf->ssid.wep.len[0]);
1111 0 : wps->network_key_len = conf->ssid.wep.len[0];
1112 : }
1113 :
1114 592 : if (conf->ssid.wpa_psk) {
1115 547 : os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1116 547 : wps->psk_set = 1;
1117 : }
1118 :
1119 592 : wps->ap_auth_type = wps->auth_types;
1120 592 : wps->ap_encr_type = wps->encr_types;
1121 592 : if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
1122 : /* Override parameters to enable security by default */
1123 20 : wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1124 20 : wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1125 : }
1126 :
1127 592 : wps->ap_settings = conf->ap_settings;
1128 592 : wps->ap_settings_len = conf->ap_settings_len;
1129 :
1130 592 : cfg.new_psk_cb = hostapd_wps_new_psk_cb;
1131 592 : cfg.set_ie_cb = hostapd_wps_set_ie_cb;
1132 592 : cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
1133 592 : cfg.reg_success_cb = hostapd_wps_reg_success_cb;
1134 592 : cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
1135 592 : cfg.cb_ctx = hapd;
1136 592 : cfg.skip_cred_build = conf->skip_cred_build;
1137 592 : cfg.extra_cred = conf->extra_cred;
1138 592 : cfg.extra_cred_len = conf->extra_cred_len;
1139 593 : cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
1140 1 : conf->skip_cred_build;
1141 592 : if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
1142 0 : cfg.static_wep_only = 1;
1143 592 : cfg.dualband = interface_count(hapd->iface) > 1;
1144 592 : if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
1145 : (WPS_RF_50GHZ | WPS_RF_24GHZ))
1146 0 : cfg.dualband = 1;
1147 592 : if (cfg.dualband)
1148 7 : wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
1149 592 : cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk;
1150 :
1151 592 : wps->registrar = wps_registrar_init(wps, &cfg);
1152 592 : if (wps->registrar == NULL) {
1153 0 : wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
1154 0 : goto fail;
1155 : }
1156 :
1157 : #ifdef CONFIG_WPS_UPNP
1158 592 : wps->friendly_name = hapd->conf->friendly_name;
1159 592 : wps->manufacturer_url = hapd->conf->manufacturer_url;
1160 592 : wps->model_description = hapd->conf->model_description;
1161 592 : wps->model_url = hapd->conf->model_url;
1162 592 : wps->upc = hapd->conf->upc;
1163 : #endif /* CONFIG_WPS_UPNP */
1164 :
1165 592 : hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
1166 :
1167 592 : hapd->wps = wps;
1168 :
1169 592 : return 0;
1170 :
1171 : fail:
1172 0 : hostapd_free_wps(wps);
1173 0 : return -1;
1174 : }
1175 :
1176 :
1177 2009 : int hostapd_init_wps_complete(struct hostapd_data *hapd)
1178 : {
1179 2009 : struct wps_context *wps = hapd->wps;
1180 :
1181 2009 : if (wps == NULL)
1182 1417 : return 0;
1183 :
1184 : #ifdef CONFIG_WPS_UPNP
1185 592 : if (hostapd_wps_upnp_init(hapd, wps) < 0) {
1186 2 : wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
1187 2 : wps_registrar_deinit(wps->registrar);
1188 2 : hostapd_free_wps(wps);
1189 2 : hapd->wps = NULL;
1190 2 : return -1;
1191 : }
1192 : #endif /* CONFIG_WPS_UPNP */
1193 :
1194 590 : return 0;
1195 : }
1196 :
1197 :
1198 604 : static void hostapd_wps_nfc_clear(struct wps_context *wps)
1199 : {
1200 : #ifdef CONFIG_WPS_NFC
1201 604 : wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps);
1202 604 : wps->ap_nfc_dev_pw_id = 0;
1203 604 : wpabuf_free(wps->ap_nfc_dh_pubkey);
1204 604 : wps->ap_nfc_dh_pubkey = NULL;
1205 604 : wpabuf_free(wps->ap_nfc_dh_privkey);
1206 604 : wps->ap_nfc_dh_privkey = NULL;
1207 604 : wpabuf_free(wps->ap_nfc_dev_pw);
1208 604 : wps->ap_nfc_dev_pw = NULL;
1209 : #endif /* CONFIG_WPS_NFC */
1210 604 : }
1211 :
1212 :
1213 2055 : void hostapd_deinit_wps(struct hostapd_data *hapd)
1214 : {
1215 2055 : eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
1216 2055 : eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1217 2055 : eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL);
1218 2055 : if (hapd->wps == NULL) {
1219 1465 : hostapd_wps_clear_ies(hapd, 1);
1220 3520 : return;
1221 : }
1222 : #ifdef CONFIG_WPS_UPNP
1223 590 : hostapd_wps_upnp_deinit(hapd);
1224 : #endif /* CONFIG_WPS_UPNP */
1225 590 : wps_registrar_deinit(hapd->wps->registrar);
1226 590 : wps_free_pending_msgs(hapd->wps->upnp_msgs);
1227 590 : hostapd_free_wps(hapd->wps);
1228 590 : hapd->wps = NULL;
1229 590 : hostapd_wps_clear_ies(hapd, 1);
1230 : }
1231 :
1232 :
1233 24 : void hostapd_update_wps(struct hostapd_data *hapd)
1234 : {
1235 24 : if (hapd->wps == NULL)
1236 26 : return;
1237 :
1238 : #ifdef CONFIG_WPS_UPNP
1239 22 : hapd->wps->friendly_name = hapd->conf->friendly_name;
1240 22 : hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
1241 22 : hapd->wps->model_description = hapd->conf->model_description;
1242 22 : hapd->wps->model_url = hapd->conf->model_url;
1243 22 : hapd->wps->upc = hapd->conf->upc;
1244 : #endif /* CONFIG_WPS_UPNP */
1245 :
1246 22 : hostapd_wps_set_vendor_ext(hapd, hapd->wps);
1247 :
1248 22 : if (hapd->conf->wps_state)
1249 22 : wps_registrar_update_ie(hapd->wps->registrar);
1250 : else
1251 0 : hostapd_deinit_wps(hapd);
1252 : }
1253 :
1254 :
1255 : struct wps_add_pin_data {
1256 : const u8 *addr;
1257 : const u8 *uuid;
1258 : const u8 *pin;
1259 : size_t pin_len;
1260 : int timeout;
1261 : int added;
1262 : };
1263 :
1264 :
1265 257 : static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1266 : {
1267 257 : struct wps_add_pin_data *data = ctx;
1268 : int ret;
1269 :
1270 257 : if (hapd->wps == NULL)
1271 0 : return 0;
1272 257 : ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1273 : data->uuid, data->pin, data->pin_len,
1274 : data->timeout);
1275 257 : if (ret == 0)
1276 257 : data->added++;
1277 257 : return ret;
1278 : }
1279 :
1280 :
1281 255 : int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
1282 : const char *uuid, const char *pin, int timeout)
1283 : {
1284 : u8 u[UUID_LEN];
1285 : struct wps_add_pin_data data;
1286 :
1287 255 : data.addr = addr;
1288 255 : data.uuid = u;
1289 255 : data.pin = (const u8 *) pin;
1290 255 : data.pin_len = os_strlen(pin);
1291 255 : data.timeout = timeout;
1292 255 : data.added = 0;
1293 :
1294 255 : if (os_strcmp(uuid, "any") == 0)
1295 253 : data.uuid = NULL;
1296 : else {
1297 2 : if (uuid_str2bin(uuid, u))
1298 0 : return -1;
1299 2 : data.uuid = u;
1300 : }
1301 255 : if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1302 0 : return -1;
1303 255 : return data.added ? 0 : -1;
1304 : }
1305 :
1306 :
1307 : struct wps_button_pushed_ctx {
1308 : const u8 *p2p_dev_addr;
1309 : unsigned int count;
1310 : };
1311 :
1312 118 : static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1313 : {
1314 118 : struct wps_button_pushed_ctx *data = ctx;
1315 :
1316 118 : if (hapd->wps) {
1317 114 : data->count++;
1318 114 : return wps_registrar_button_pushed(hapd->wps->registrar,
1319 : data->p2p_dev_addr);
1320 : }
1321 :
1322 4 : return 0;
1323 : }
1324 :
1325 :
1326 112 : int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1327 : const u8 *p2p_dev_addr)
1328 : {
1329 : struct wps_button_pushed_ctx ctx;
1330 : int ret;
1331 :
1332 112 : os_memset(&ctx, 0, sizeof(ctx));
1333 112 : ctx.p2p_dev_addr = p2p_dev_addr;
1334 112 : ret = hostapd_wps_for_each(hapd, wps_button_pushed, &ctx);
1335 112 : if (ret == 0 && !ctx.count)
1336 1 : ret = -1;
1337 112 : return ret;
1338 : }
1339 :
1340 :
1341 : struct wps_cancel_ctx {
1342 : unsigned int count;
1343 : };
1344 :
1345 7 : static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1346 : {
1347 7 : struct wps_cancel_ctx *data = ctx;
1348 :
1349 7 : if (hapd->wps) {
1350 5 : data->count++;
1351 5 : wps_registrar_wps_cancel(hapd->wps->registrar);
1352 5 : ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1353 : }
1354 :
1355 7 : return 0;
1356 : }
1357 :
1358 :
1359 6 : int hostapd_wps_cancel(struct hostapd_data *hapd)
1360 : {
1361 : struct wps_cancel_ctx ctx;
1362 : int ret;
1363 :
1364 6 : os_memset(&ctx, 0, sizeof(ctx));
1365 6 : ret = hostapd_wps_for_each(hapd, wps_cancel, &ctx);
1366 6 : if (ret == 0 && !ctx.count)
1367 1 : ret = -1;
1368 6 : return ret;
1369 : }
1370 :
1371 :
1372 1753 : static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1373 : const u8 *bssid,
1374 : const u8 *ie, size_t ie_len,
1375 : int ssi_signal)
1376 : {
1377 1753 : struct hostapd_data *hapd = ctx;
1378 : struct wpabuf *wps_ie;
1379 : struct ieee802_11_elems elems;
1380 :
1381 1753 : if (hapd->wps == NULL)
1382 0 : return 0;
1383 :
1384 1753 : if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1385 0 : wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1386 0 : MACSTR, MAC2STR(addr));
1387 0 : return 0;
1388 : }
1389 :
1390 2156 : if (elems.ssid && elems.ssid_len > 0 &&
1391 654 : (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1392 251 : os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1393 : 0))
1394 153 : return 0; /* Not for us */
1395 :
1396 1600 : wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1397 1600 : if (wps_ie == NULL)
1398 26 : return 0;
1399 1574 : if (wps_validate_probe_req(wps_ie, addr) < 0) {
1400 0 : wpabuf_free(wps_ie);
1401 0 : return 0;
1402 : }
1403 :
1404 1574 : if (wpabuf_len(wps_ie) > 0) {
1405 1574 : int p2p_wildcard = 0;
1406 : #ifdef CONFIG_P2P
1407 278 : if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1408 0 : os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1409 : P2P_WILDCARD_SSID_LEN) == 0)
1410 0 : p2p_wildcard = 1;
1411 : #endif /* CONFIG_P2P */
1412 1574 : wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1413 : p2p_wildcard);
1414 : #ifdef CONFIG_WPS_UPNP
1415 : /* FIX: what exactly should be included in the WLANEvent?
1416 : * WPS attributes? Full ProbeReq frame? */
1417 1574 : if (!p2p_wildcard)
1418 1574 : upnp_wps_device_send_wlan_event(
1419 : hapd->wps_upnp, addr,
1420 : UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1421 : #endif /* CONFIG_WPS_UPNP */
1422 : }
1423 :
1424 1574 : wpabuf_free(wps_ie);
1425 :
1426 1574 : return 0;
1427 : }
1428 :
1429 :
1430 : #ifdef CONFIG_WPS_UPNP
1431 :
1432 40 : static int hostapd_rx_req_put_wlan_response(
1433 : void *priv, enum upnp_wps_wlanevent_type ev_type,
1434 : const u8 *mac_addr, const struct wpabuf *msg,
1435 : enum wps_msg_type msg_type)
1436 : {
1437 40 : struct hostapd_data *hapd = priv;
1438 : struct sta_info *sta;
1439 : struct upnp_pending_message *p;
1440 :
1441 240 : wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1442 240 : MACSTR, ev_type, MAC2STR(mac_addr));
1443 40 : wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1444 : wpabuf_head(msg), wpabuf_len(msg));
1445 40 : if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1446 0 : wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1447 : "PutWLANResponse WLANEventType %d", ev_type);
1448 0 : return -1;
1449 : }
1450 :
1451 : /*
1452 : * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1453 : * server implementation for delivery to the peer.
1454 : */
1455 :
1456 40 : sta = ap_get_sta(hapd, mac_addr);
1457 : #ifndef CONFIG_WPS_STRICT
1458 40 : if (!sta) {
1459 : /*
1460 : * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1461 : * Pick STA that is in an ongoing WPS registration without
1462 : * checking the MAC address.
1463 : */
1464 0 : wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1465 : "on NewWLANEventMAC; try wildcard match");
1466 0 : for (sta = hapd->sta_list; sta; sta = sta->next) {
1467 0 : if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1468 0 : break;
1469 : }
1470 : }
1471 : #endif /* CONFIG_WPS_STRICT */
1472 :
1473 40 : if (!sta || !(sta->flags & WLAN_STA_WPS)) {
1474 0 : wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1475 0 : return 0;
1476 : }
1477 :
1478 40 : if (!sta->eapol_sm) {
1479 : /*
1480 : * This can happen, e.g., if an ER sends an extra message after
1481 : * the station has disassociated (but not fully
1482 : * deauthenticated).
1483 : */
1484 0 : wpa_printf(MSG_DEBUG, "WPS UPnP: Matching STA did not have EAPOL state machine initialized");
1485 0 : return 0;
1486 : }
1487 :
1488 40 : p = os_zalloc(sizeof(*p));
1489 40 : if (p == NULL)
1490 0 : return -1;
1491 40 : os_memcpy(p->addr, sta->addr, ETH_ALEN);
1492 40 : p->msg = wpabuf_dup(msg);
1493 40 : p->type = msg_type;
1494 40 : p->next = hapd->wps->upnp_msgs;
1495 40 : hapd->wps->upnp_msgs = p;
1496 :
1497 40 : return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1498 : }
1499 :
1500 :
1501 592 : static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1502 : struct wps_context *wps)
1503 : {
1504 : struct upnp_wps_device_ctx *ctx;
1505 :
1506 592 : if (!hapd->conf->upnp_iface)
1507 555 : return 0;
1508 37 : ctx = os_zalloc(sizeof(*ctx));
1509 37 : if (ctx == NULL)
1510 0 : return -1;
1511 :
1512 37 : ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1513 37 : if (hapd->conf->ap_pin)
1514 36 : ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1515 :
1516 37 : hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1517 37 : hapd->conf->upnp_iface);
1518 37 : if (hapd->wps_upnp == NULL)
1519 2 : return -1;
1520 35 : wps->wps_upnp = hapd->wps_upnp;
1521 :
1522 35 : return 0;
1523 : }
1524 :
1525 :
1526 590 : static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1527 : {
1528 590 : upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1529 590 : }
1530 :
1531 : #endif /* CONFIG_WPS_UPNP */
1532 :
1533 :
1534 202 : int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1535 : char *buf, size_t buflen)
1536 : {
1537 202 : if (hapd->wps == NULL)
1538 195 : return 0;
1539 7 : return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1540 : }
1541 :
1542 :
1543 2 : static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1544 : {
1545 2 : struct hostapd_data *hapd = eloop_data;
1546 2 : wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1547 2 : hostapd_wps_ap_pin_disable(hapd);
1548 2 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
1549 2 : }
1550 :
1551 :
1552 8 : static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1553 : {
1554 8 : wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1555 8 : hapd->ap_pin_failures = 0;
1556 8 : hapd->ap_pin_failures_consecutive = 0;
1557 8 : hapd->conf->ap_setup_locked = 0;
1558 8 : if (hapd->wps->ap_setup_locked) {
1559 1 : wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1560 1 : hapd->wps->ap_setup_locked = 0;
1561 1 : wps_registrar_update_ie(hapd->wps->registrar);
1562 : }
1563 8 : eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1564 8 : if (timeout > 0)
1565 8 : eloop_register_timeout(timeout, 0,
1566 : hostapd_wps_ap_pin_timeout, hapd, NULL);
1567 8 : }
1568 :
1569 :
1570 7 : static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1571 : {
1572 7 : os_free(hapd->conf->ap_pin);
1573 7 : hapd->conf->ap_pin = NULL;
1574 : #ifdef CONFIG_WPS_UPNP
1575 7 : upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1576 : #endif /* CONFIG_WPS_UPNP */
1577 7 : eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1578 7 : return 0;
1579 : }
1580 :
1581 :
1582 7 : void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1583 : {
1584 7 : wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1585 7 : hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1586 7 : }
1587 :
1588 :
1589 : struct wps_ap_pin_data {
1590 : char pin_txt[9];
1591 : int timeout;
1592 : };
1593 :
1594 :
1595 9 : static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1596 : {
1597 9 : struct wps_ap_pin_data *data = ctx;
1598 :
1599 9 : if (!hapd->wps)
1600 1 : return 0;
1601 :
1602 8 : os_free(hapd->conf->ap_pin);
1603 8 : hapd->conf->ap_pin = os_strdup(data->pin_txt);
1604 : #ifdef CONFIG_WPS_UPNP
1605 8 : upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1606 : #endif /* CONFIG_WPS_UPNP */
1607 8 : hostapd_wps_ap_pin_enable(hapd, data->timeout);
1608 8 : return 0;
1609 : }
1610 :
1611 :
1612 5 : const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1613 : {
1614 : unsigned int pin;
1615 : struct wps_ap_pin_data data;
1616 :
1617 5 : pin = wps_generate_pin();
1618 5 : os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
1619 5 : data.timeout = timeout;
1620 5 : hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1621 5 : return hapd->conf->ap_pin;
1622 : }
1623 :
1624 :
1625 4 : const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1626 : {
1627 4 : return hapd->conf->ap_pin;
1628 : }
1629 :
1630 :
1631 3 : int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1632 : int timeout)
1633 : {
1634 : struct wps_ap_pin_data data;
1635 : int ret;
1636 :
1637 3 : ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1638 3 : if (os_snprintf_error(sizeof(data.pin_txt), ret))
1639 0 : return -1;
1640 3 : data.timeout = timeout;
1641 3 : return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1642 : }
1643 :
1644 :
1645 5 : static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1646 : {
1647 5 : if (hapd->wps)
1648 5 : wps_registrar_update_ie(hapd->wps->registrar);
1649 5 : return 0;
1650 : }
1651 :
1652 :
1653 5 : void hostapd_wps_update_ie(struct hostapd_data *hapd)
1654 : {
1655 5 : hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1656 5 : }
1657 :
1658 :
1659 4 : int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1660 : const char *auth, const char *encr, const char *key)
1661 : {
1662 : struct wps_credential cred;
1663 : size_t len;
1664 :
1665 4 : os_memset(&cred, 0, sizeof(cred));
1666 :
1667 4 : len = os_strlen(ssid);
1668 8 : if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1669 4 : hexstr2bin(ssid, cred.ssid, len / 2))
1670 0 : return -1;
1671 4 : cred.ssid_len = len / 2;
1672 :
1673 4 : if (os_strncmp(auth, "OPEN", 4) == 0)
1674 0 : cred.auth_type = WPS_AUTH_OPEN;
1675 4 : else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1676 0 : cred.auth_type = WPS_AUTH_WPAPSK;
1677 4 : else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1678 4 : cred.auth_type = WPS_AUTH_WPA2PSK;
1679 : else
1680 0 : return -1;
1681 :
1682 4 : if (encr) {
1683 4 : if (os_strncmp(encr, "NONE", 4) == 0)
1684 0 : cred.encr_type = WPS_ENCR_NONE;
1685 4 : else if (os_strncmp(encr, "TKIP", 4) == 0)
1686 0 : cred.encr_type = WPS_ENCR_TKIP;
1687 4 : else if (os_strncmp(encr, "CCMP", 4) == 0)
1688 4 : cred.encr_type = WPS_ENCR_AES;
1689 : else
1690 0 : return -1;
1691 : } else
1692 0 : cred.encr_type = WPS_ENCR_NONE;
1693 :
1694 4 : if (key) {
1695 4 : len = os_strlen(key);
1696 8 : if ((len & 1) || len > 2 * sizeof(cred.key) ||
1697 4 : hexstr2bin(key, cred.key, len / 2))
1698 0 : return -1;
1699 4 : cred.key_len = len / 2;
1700 : }
1701 :
1702 4 : return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1703 : }
1704 :
1705 :
1706 : #ifdef CONFIG_WPS_NFC
1707 :
1708 : struct wps_nfc_password_token_data {
1709 : const u8 *oob_dev_pw;
1710 : size_t oob_dev_pw_len;
1711 : int added;
1712 : };
1713 :
1714 :
1715 2 : static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
1716 : {
1717 2 : struct wps_nfc_password_token_data *data = ctx;
1718 : int ret;
1719 :
1720 2 : if (hapd->wps == NULL)
1721 0 : return 0;
1722 2 : ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
1723 : data->oob_dev_pw,
1724 : data->oob_dev_pw_len);
1725 2 : if (ret == 0)
1726 2 : data->added++;
1727 2 : return ret;
1728 : }
1729 :
1730 :
1731 2 : static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
1732 : struct wps_parse_attr *attr)
1733 : {
1734 : struct wps_nfc_password_token_data data;
1735 :
1736 2 : data.oob_dev_pw = attr->oob_dev_password;
1737 2 : data.oob_dev_pw_len = attr->oob_dev_password_len;
1738 2 : data.added = 0;
1739 2 : if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
1740 0 : return -1;
1741 2 : return data.added ? 0 : -1;
1742 : }
1743 :
1744 :
1745 2 : static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
1746 : const struct wpabuf *wps)
1747 : {
1748 : struct wps_parse_attr attr;
1749 :
1750 2 : wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1751 :
1752 2 : if (wps_parse_msg(wps, &attr)) {
1753 0 : wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1754 0 : return -1;
1755 : }
1756 :
1757 2 : if (attr.oob_dev_password)
1758 2 : return hostapd_wps_add_nfc_password_token(hapd, &attr);
1759 :
1760 0 : wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1761 0 : return -1;
1762 : }
1763 :
1764 :
1765 2 : int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
1766 : const struct wpabuf *data)
1767 : {
1768 2 : const struct wpabuf *wps = data;
1769 2 : struct wpabuf *tmp = NULL;
1770 : int ret;
1771 :
1772 2 : if (wpabuf_len(data) < 4)
1773 0 : return -1;
1774 :
1775 2 : if (*wpabuf_head_u8(data) != 0x10) {
1776 : /* Assume this contains full NDEF record */
1777 2 : tmp = ndef_parse_wifi(data);
1778 2 : if (tmp == NULL) {
1779 0 : wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1780 0 : return -1;
1781 : }
1782 2 : wps = tmp;
1783 : }
1784 :
1785 2 : ret = hostapd_wps_nfc_tag_process(hapd, wps);
1786 2 : wpabuf_free(tmp);
1787 2 : return ret;
1788 : }
1789 :
1790 :
1791 4 : struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
1792 : int ndef)
1793 : {
1794 : struct wpabuf *ret;
1795 :
1796 4 : if (hapd->wps == NULL)
1797 0 : return NULL;
1798 :
1799 4 : ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd),
1800 4 : hapd->iconf->channel);
1801 4 : if (ndef && ret) {
1802 : struct wpabuf *tmp;
1803 3 : tmp = ndef_build_wifi(ret);
1804 3 : wpabuf_free(ret);
1805 3 : if (tmp == NULL)
1806 0 : return NULL;
1807 3 : ret = tmp;
1808 : }
1809 :
1810 4 : return ret;
1811 : }
1812 :
1813 :
1814 10 : struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
1815 : {
1816 : struct wpabuf *ret;
1817 :
1818 10 : if (hapd->wps == NULL)
1819 0 : return NULL;
1820 :
1821 10 : if (hapd->conf->wps_nfc_dh_pubkey == NULL) {
1822 8 : struct wps_context *wps = hapd->wps;
1823 8 : if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey,
1824 8 : &hapd->conf->wps_nfc_dh_privkey) < 0)
1825 0 : return NULL;
1826 8 : hostapd_wps_nfc_clear(wps);
1827 8 : wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
1828 8 : wps->ap_nfc_dh_pubkey =
1829 8 : wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1830 8 : wps->ap_nfc_dh_privkey =
1831 8 : wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1832 8 : if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
1833 0 : hostapd_wps_nfc_clear(wps);
1834 0 : return NULL;
1835 : }
1836 : }
1837 :
1838 20 : ret = wps_build_nfc_handover_sel(hapd->wps,
1839 10 : hapd->conf->wps_nfc_dh_pubkey,
1840 20 : hapd->own_addr, hapd->iface->freq);
1841 :
1842 10 : if (ndef && ret) {
1843 : struct wpabuf *tmp;
1844 9 : tmp = ndef_build_wifi(ret);
1845 9 : wpabuf_free(ret);
1846 9 : if (tmp == NULL)
1847 0 : return NULL;
1848 9 : ret = tmp;
1849 : }
1850 :
1851 10 : return ret;
1852 : }
1853 :
1854 :
1855 9 : int hostapd_wps_nfc_report_handover(struct hostapd_data *hapd,
1856 : const struct wpabuf *req,
1857 : const struct wpabuf *sel)
1858 : {
1859 : struct wpabuf *wps;
1860 9 : int ret = -1;
1861 : u16 wsc_len;
1862 : const u8 *pos;
1863 : struct wpabuf msg;
1864 : struct wps_parse_attr attr;
1865 : u16 dev_pw_id;
1866 :
1867 : /*
1868 : * Enrollee/station is always initiator of the NFC connection handover,
1869 : * so use the request message here to find Enrollee public key hash.
1870 : */
1871 9 : wps = ndef_parse_wifi(req);
1872 9 : if (wps == NULL)
1873 1 : return -1;
1874 8 : wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
1875 : "payload from NFC connection handover");
1876 8 : wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
1877 8 : if (wpabuf_len(wps) < 2) {
1878 0 : wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
1879 : "Message");
1880 0 : goto out;
1881 : }
1882 8 : pos = wpabuf_head(wps);
1883 8 : wsc_len = WPA_GET_BE16(pos);
1884 8 : if (wsc_len > wpabuf_len(wps) - 2) {
1885 0 : wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
1886 : "in rt Wi-Fi Handover Request Message", wsc_len);
1887 0 : goto out;
1888 : }
1889 8 : pos += 2;
1890 :
1891 8 : wpa_hexdump(MSG_DEBUG,
1892 : "WPS: WSC attributes in Wi-Fi Handover Request Message",
1893 : pos, wsc_len);
1894 8 : if (wsc_len < wpabuf_len(wps) - 2) {
1895 0 : wpa_hexdump(MSG_DEBUG,
1896 : "WPS: Ignore extra data after WSC attributes",
1897 0 : pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
1898 : }
1899 :
1900 8 : wpabuf_set(&msg, pos, wsc_len);
1901 8 : ret = wps_parse_msg(&msg, &attr);
1902 8 : if (ret < 0) {
1903 0 : wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
1904 : "Wi-Fi Handover Request Message");
1905 0 : goto out;
1906 : }
1907 :
1908 16 : if (attr.oob_dev_password == NULL ||
1909 8 : attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
1910 0 : wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
1911 : "included in Wi-Fi Handover Request Message");
1912 0 : ret = -1;
1913 0 : goto out;
1914 : }
1915 :
1916 8 : if (attr.uuid_e == NULL) {
1917 0 : wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
1918 : "Handover Request Message");
1919 0 : ret = -1;
1920 0 : goto out;
1921 : }
1922 :
1923 8 : wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
1924 :
1925 16 : wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
1926 16 : attr.oob_dev_password, attr.oob_dev_password_len);
1927 8 : dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
1928 : WPS_OOB_PUBKEY_HASH_LEN);
1929 8 : if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
1930 0 : wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
1931 : "%u in Wi-Fi Handover Request Message", dev_pw_id);
1932 0 : ret = -1;
1933 0 : goto out;
1934 : }
1935 8 : wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
1936 8 : attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
1937 :
1938 8 : ret = wps_registrar_add_nfc_pw_token(hapd->wps->registrar,
1939 : attr.oob_dev_password,
1940 : DEV_PW_NFC_CONNECTION_HANDOVER,
1941 : NULL, 0, 1);
1942 :
1943 : out:
1944 8 : wpabuf_free(wps);
1945 8 : return ret;
1946 : }
1947 :
1948 :
1949 5 : struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
1950 : {
1951 5 : if (hapd->conf->wps_nfc_pw_from_config) {
1952 0 : return wps_nfc_token_build(ndef,
1953 0 : hapd->conf->wps_nfc_dev_pw_id,
1954 0 : hapd->conf->wps_nfc_dh_pubkey,
1955 0 : hapd->conf->wps_nfc_dev_pw);
1956 : }
1957 :
1958 15 : return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
1959 5 : &hapd->conf->wps_nfc_dh_pubkey,
1960 5 : &hapd->conf->wps_nfc_dh_privkey,
1961 5 : &hapd->conf->wps_nfc_dev_pw);
1962 : }
1963 :
1964 :
1965 3 : int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
1966 : {
1967 3 : struct wps_context *wps = hapd->wps;
1968 : struct wpabuf *pw;
1969 :
1970 3 : if (wps == NULL)
1971 0 : return -1;
1972 :
1973 6 : if (!hapd->conf->wps_nfc_dh_pubkey ||
1974 6 : !hapd->conf->wps_nfc_dh_privkey ||
1975 6 : !hapd->conf->wps_nfc_dev_pw ||
1976 3 : !hapd->conf->wps_nfc_dev_pw_id)
1977 0 : return -1;
1978 :
1979 3 : hostapd_wps_nfc_clear(wps);
1980 3 : wpa_printf(MSG_DEBUG,
1981 : "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)",
1982 3 : hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps);
1983 3 : wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
1984 3 : wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1985 3 : wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1986 3 : pw = hapd->conf->wps_nfc_dev_pw;
1987 3 : wps->ap_nfc_dev_pw = wpabuf_alloc(
1988 3 : wpabuf_len(pw) * 2 + 1);
1989 3 : if (wps->ap_nfc_dev_pw) {
1990 9 : wpa_snprintf_hex_uppercase(
1991 3 : (char *) wpabuf_put(wps->ap_nfc_dev_pw,
1992 3 : wpabuf_len(pw) * 2),
1993 3 : wpabuf_len(pw) * 2 + 1,
1994 3 : wpabuf_head(pw), wpabuf_len(pw));
1995 : }
1996 :
1997 6 : if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
1998 3 : !wps->ap_nfc_dev_pw) {
1999 0 : hostapd_wps_nfc_clear(wps);
2000 0 : return -1;
2001 : }
2002 :
2003 3 : return 0;
2004 : }
2005 :
2006 :
2007 1 : void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
2008 : {
2009 1 : wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s",
2010 1 : hapd->conf->iface);
2011 1 : hostapd_wps_nfc_clear(hapd->wps);
2012 1 : }
2013 :
2014 : #endif /* CONFIG_WPS_NFC */
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