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Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * hostapd / WPS integration
Dmitry Shmidt04949592012-07-19 12:16:46 -07003 * Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi>
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
8
9#include "utils/includes.h"
10
11#include "utils/common.h"
12#include "utils/eloop.h"
13#include "utils/uuid.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070014#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"
Dmitry Shmidt04949592012-07-19 12:16:46 -070022#include "wps/wps_attr_parse.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070023#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"
33static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
34 struct wps_context *wps);
35static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
36#endif /* CONFIG_WPS_UPNP */
37
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080038static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
39 const u8 *bssid,
Dmitry Shmidt04949592012-07-19 12:16:46 -070040 const u8 *ie, size_t ie_len,
41 int ssi_signal);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070042static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -070043static void hostapd_wps_nfc_clear(struct wps_context *wps);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070044
45
46struct wps_for_each_data {
47 int (*func)(struct hostapd_data *h, void *ctx);
48 void *ctx;
Dmitry Shmidt444d5672013-04-01 13:08:44 -070049 struct hostapd_data *calling_hapd;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070050};
51
52
53static int wps_for_each(struct hostapd_iface *iface, void *ctx)
54{
55 struct wps_for_each_data *data = ctx;
56 size_t j;
57
58 if (iface == NULL)
59 return 0;
60 for (j = 0; j < iface->num_bss; j++) {
61 struct hostapd_data *hapd = iface->bss[j];
Dmitry Shmidt444d5672013-04-01 13:08:44 -070062 int ret;
63
64 if (hapd != data->calling_hapd &&
65 (hapd->conf->wps_independent ||
66 data->calling_hapd->conf->wps_independent))
67 continue;
68
69 ret = data->func(hapd, data->ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070070 if (ret)
71 return ret;
72 }
73
74 return 0;
75}
76
77
78static int hostapd_wps_for_each(struct hostapd_data *hapd,
79 int (*func)(struct hostapd_data *h, void *ctx),
80 void *ctx)
81{
82 struct hostapd_iface *iface = hapd->iface;
83 struct wps_for_each_data data;
84 data.func = func;
85 data.ctx = ctx;
Dmitry Shmidt444d5672013-04-01 13:08:44 -070086 data.calling_hapd = hapd;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070087 if (iface->interfaces == NULL ||
88 iface->interfaces->for_each_interface == NULL)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070089 return wps_for_each(iface, &data);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070090 return iface->interfaces->for_each_interface(iface->interfaces,
91 wps_for_each, &data);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070092}
93
94
Dmitry Shmidt391c59f2013-09-03 12:16:28 -070095static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
96 const u8 *p2p_dev_addr, const u8 *psk,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070097 size_t psk_len)
98{
99 struct hostapd_data *hapd = ctx;
100 struct hostapd_wpa_psk *p;
101 struct hostapd_ssid *ssid = &hapd->conf->ssid;
102
Dmitry Shmidt391c59f2013-09-03 12:16:28 -0700103 if (is_zero_ether_addr(p2p_dev_addr)) {
104 wpa_printf(MSG_DEBUG,
105 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
106 MAC2STR(mac_addr));
107 } else {
108 wpa_printf(MSG_DEBUG,
109 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
110 " P2P Device Addr " MACSTR,
111 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
112 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700113 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
114
115 if (psk_len != PMK_LEN) {
116 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
117 (unsigned long) psk_len);
118 return -1;
119 }
120
121 /* Add the new PSK to runtime PSK list */
122 p = os_zalloc(sizeof(*p));
123 if (p == NULL)
124 return -1;
125 os_memcpy(p->addr, mac_addr, ETH_ALEN);
Dmitry Shmidt391c59f2013-09-03 12:16:28 -0700126 os_memcpy(p->p2p_dev_addr, p2p_dev_addr, ETH_ALEN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700127 os_memcpy(p->psk, psk, PMK_LEN);
128
Dmitry Shmidt391c59f2013-09-03 12:16:28 -0700129 if (hapd->new_psk_cb) {
130 hapd->new_psk_cb(hapd->new_psk_cb_ctx, mac_addr, p2p_dev_addr,
131 psk, psk_len);
132 }
133
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700134 p->next = ssid->wpa_psk;
135 ssid->wpa_psk = p;
136
137 if (ssid->wpa_psk_file) {
138 FILE *f;
139 char hex[PMK_LEN * 2 + 1];
140 /* Add the new PSK to PSK list file */
141 f = fopen(ssid->wpa_psk_file, "a");
142 if (f == NULL) {
143 wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
144 "'%s'", ssid->wpa_psk_file);
145 return -1;
146 }
147
148 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
149 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
150 fclose(f);
151 }
152
153 return 0;
154}
155
156
157static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
158 struct wpabuf *probe_resp_ie)
159{
160 struct hostapd_data *hapd = ctx;
161 wpabuf_free(hapd->wps_beacon_ie);
162 hapd->wps_beacon_ie = beacon_ie;
163 wpabuf_free(hapd->wps_probe_resp_ie);
164 hapd->wps_probe_resp_ie = probe_resp_ie;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800165 if (hapd->beacon_set_done)
166 ieee802_11_set_beacon(hapd);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700167 return hostapd_set_ap_wps_ie(hapd);
168}
169
170
171static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
172 const struct wps_device_data *dev)
173{
174 struct hostapd_data *hapd = ctx;
175 char uuid[40], txt[400];
176 int len;
177 char devtype[WPS_DEV_TYPE_BUFSIZE];
178 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
179 return;
180 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
181 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
182 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
183 uuid, MAC2STR(dev->mac_addr), dev->device_name,
184 dev->manufacturer, dev->model_name,
185 dev->model_number, dev->serial_number,
186 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
187 sizeof(devtype)));
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800188 if (!os_snprintf_error(sizeof(txt), len))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700189 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
190
191 if (hapd->conf->wps_pin_requests) {
192 FILE *f;
193 struct os_time t;
194 f = fopen(hapd->conf->wps_pin_requests, "a");
195 if (f == NULL)
196 return;
197 os_get_time(&t);
198 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
199 "\t%s\n",
200 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
201 dev->manufacturer, dev->model_name, dev->model_number,
202 dev->serial_number,
203 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
204 sizeof(devtype)));
205 fclose(f);
206 }
207}
208
209
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800210struct wps_stop_reg_data {
211 struct hostapd_data *current_hapd;
212 const u8 *uuid_e;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700213 const u8 *dev_pw;
214 size_t dev_pw_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800215};
216
217static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
218{
219 struct wps_stop_reg_data *data = ctx;
220 if (hapd != data->current_hapd && hapd->wps != NULL)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700221 wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
222 data->dev_pw, data->dev_pw_len);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800223 return 0;
224}
225
226
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700227static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700228 const u8 *uuid_e, const u8 *dev_pw,
229 size_t dev_pw_len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700230{
231 struct hostapd_data *hapd = ctx;
232 char uuid[40];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800233 struct wps_stop_reg_data data;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700234 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
235 return;
236 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
237 MAC2STR(mac_addr), uuid);
238 if (hapd->wps_reg_success_cb)
239 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
240 mac_addr, uuid_e);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800241 data.current_hapd = hapd;
242 data.uuid_e = uuid_e;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700243 data.dev_pw = dev_pw;
244 data.dev_pw_len = dev_pw_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800245 hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700246}
247
248
249static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
250 const u8 *uuid_e,
251 const u8 *pri_dev_type,
252 u16 config_methods,
253 u16 dev_password_id, u8 request_type,
254 const char *dev_name)
255{
256 struct hostapd_data *hapd = ctx;
257 char uuid[40];
258 char devtype[WPS_DEV_TYPE_BUFSIZE];
259 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
260 return;
261 if (dev_name == NULL)
262 dev_name = "";
263 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
264 " %s %s 0x%x %u %u [%s]",
265 MAC2STR(addr), uuid,
266 wps_dev_type_bin2str(pri_dev_type, devtype,
267 sizeof(devtype)),
268 config_methods, dev_password_id, request_type, dev_name);
269}
270
271
272static int str_starts(const char *str, const char *start)
273{
274 return os_strncmp(str, start, os_strlen(start)) == 0;
275}
276
277
278static void wps_reload_config(void *eloop_data, void *user_ctx)
279{
280 struct hostapd_iface *iface = eloop_data;
281
282 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700283 if (iface->interfaces == NULL ||
284 iface->interfaces->reload_config(iface) < 0) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700285 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
286 "configuration");
287 }
288}
289
290
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800291void 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 if (eloop_deplete_timeout(0, 0, wps_reload_config, hapd->iface, NULL) ==
300 1)
301 wpa_printf(MSG_DEBUG, "WPS: Reschedule immediate configuration reload");
302}
303
304
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800305static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
306 size_t attr_len)
307{
308 size_t blen = attr_len * 2 + 1;
309 char *buf = os_malloc(blen);
310 if (buf) {
311 wpa_snprintf_hex(buf, blen, attr, attr_len);
312 wpa_msg(hapd->msg_ctx, MSG_INFO,
313 WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
314 os_free(buf);
315 }
316}
317
318
Dmitry Shmidt444d5672013-04-01 13:08:44 -0700319static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
320 const struct wps_credential *cred)
321{
322 struct hostapd_bss_config *bss = hapd->conf;
323
324 wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
325
326 bss->wps_state = 2;
327 if (cred->ssid_len <= HOSTAPD_MAX_SSID_LEN) {
328 os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
329 bss->ssid.ssid_len = cred->ssid_len;
330 bss->ssid.ssid_set = 1;
331 }
332
333 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
334 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
335 bss->wpa = 3;
336 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
337 bss->wpa = 2;
338 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
339 bss->wpa = 1;
340 else
341 bss->wpa = 0;
342
343 if (bss->wpa) {
344 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
345 bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
346 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
347 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
348
349 bss->wpa_pairwise = 0;
350 if (cred->encr_type & WPS_ENCR_AES)
351 bss->wpa_pairwise |= WPA_CIPHER_CCMP;
352 if (cred->encr_type & WPS_ENCR_TKIP)
353 bss->wpa_pairwise |= WPA_CIPHER_TKIP;
354 bss->rsn_pairwise = bss->wpa_pairwise;
355 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
356 bss->wpa_pairwise,
357 bss->rsn_pairwise);
358
359 if (cred->key_len >= 8 && cred->key_len < 64) {
360 os_free(bss->ssid.wpa_passphrase);
361 bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
362 if (bss->ssid.wpa_passphrase)
363 os_memcpy(bss->ssid.wpa_passphrase, cred->key,
364 cred->key_len);
365 os_free(bss->ssid.wpa_psk);
366 bss->ssid.wpa_psk = NULL;
367 } else if (cred->key_len == 64) {
368 os_free(bss->ssid.wpa_psk);
369 bss->ssid.wpa_psk =
370 os_zalloc(sizeof(struct hostapd_wpa_psk));
371 if (bss->ssid.wpa_psk &&
372 hexstr2bin((const char *) cred->key,
373 bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
374 bss->ssid.wpa_psk->group = 1;
375 os_free(bss->ssid.wpa_passphrase);
376 bss->ssid.wpa_passphrase = NULL;
377 }
378 }
379 bss->auth_algs = 1;
380 } else {
Dmitry Shmidtd11f0192014-03-24 12:09:47 -0700381 /*
382 * WPS 2.0 does not allow WEP to be configured, so no need to
383 * process that option here either.
384 */
385 bss->auth_algs = 1;
Dmitry Shmidt444d5672013-04-01 13:08:44 -0700386 }
387
388 /* Schedule configuration reload after short period of time to allow
389 * EAP-WSC to be finished.
390 */
391 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
392 NULL);
393
394 return 0;
395}
396
397
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700398static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
399{
400 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 if (hapd->wps == NULL)
409 return 0;
410
411 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
412 cred->cred_attr, cred->cred_attr_len);
413
414 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
415 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
416 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
417 cred->auth_type);
418 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
419 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
420 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
421 cred->key, cred->key_len);
422 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
423 MAC2STR(cred->mac_addr));
424
425 if ((hapd->conf->wps_cred_processing == 1 ||
426 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800427 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
428 } else if (hapd->conf->wps_cred_processing == 1 ||
429 hapd->conf->wps_cred_processing == 2) {
430 struct wpabuf *attr;
431 attr = wpabuf_alloc(200);
432 if (attr && wps_build_credential_wrap(attr, cred) == 0)
433 hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
434 wpabuf_len(attr));
435 wpabuf_free(attr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700436 } else
437 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
438
439 if (hapd->conf->wps_cred_processing == 1)
440 return 0;
441
442 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
443 hapd->wps->ssid_len = cred->ssid_len;
444 hapd->wps->encr_types = cred->encr_type;
445 hapd->wps->auth_types = cred->auth_type;
Dmitry Shmidt96be6222014-02-13 10:16:51 -0800446 hapd->wps->ap_encr_type = cred->encr_type;
447 hapd->wps->ap_auth_type = cred->auth_type;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700448 if (cred->key_len == 0) {
449 os_free(hapd->wps->network_key);
450 hapd->wps->network_key = NULL;
451 hapd->wps->network_key_len = 0;
452 } else {
453 if (hapd->wps->network_key == NULL ||
454 hapd->wps->network_key_len < cred->key_len) {
455 hapd->wps->network_key_len = 0;
456 os_free(hapd->wps->network_key);
457 hapd->wps->network_key = os_malloc(cred->key_len);
458 if (hapd->wps->network_key == NULL)
459 return -1;
460 }
461 hapd->wps->network_key_len = cred->key_len;
462 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
463 }
464 hapd->wps->wps_state = WPS_STATE_CONFIGURED;
465
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700466 if (hapd->iface->config_fname == NULL)
Dmitry Shmidt444d5672013-04-01 13:08:44 -0700467 return hapd_wps_reconfig_in_memory(hapd, cred);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700468 len = os_strlen(hapd->iface->config_fname) + 5;
469 tmp_fname = os_malloc(len);
470 if (tmp_fname == NULL)
471 return -1;
472 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
473
474 oconf = fopen(hapd->iface->config_fname, "r");
475 if (oconf == NULL) {
476 wpa_printf(MSG_WARNING, "WPS: Could not open current "
477 "configuration file");
478 os_free(tmp_fname);
479 return -1;
480 }
481
482 nconf = fopen(tmp_fname, "w");
483 if (nconf == NULL) {
484 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
485 "configuration file");
486 os_free(tmp_fname);
487 fclose(oconf);
488 return -1;
489 }
490
491 fprintf(nconf, "# WPS configuration - START\n");
492
493 fprintf(nconf, "wps_state=2\n");
494
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700495 if (is_hex(cred->ssid, cred->ssid_len)) {
496 fprintf(nconf, "ssid2=");
497 for (i = 0; i < cred->ssid_len; i++)
498 fprintf(nconf, "%02x", cred->ssid[i]);
499 fprintf(nconf, "\n");
500 } else {
501 fprintf(nconf, "ssid=");
502 for (i = 0; i < cred->ssid_len; i++)
503 fputc(cred->ssid[i], nconf);
504 fprintf(nconf, "\n");
505 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700506
507 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
508 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
509 wpa = 3;
510 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
511 wpa = 2;
512 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
513 wpa = 1;
514 else
515 wpa = 0;
516
517 if (wpa) {
518 char *prefix;
519 fprintf(nconf, "wpa=%d\n", wpa);
520
521 fprintf(nconf, "wpa_key_mgmt=");
522 prefix = "";
523 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
524 fprintf(nconf, "WPA-EAP");
525 prefix = " ";
526 }
527 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
528 fprintf(nconf, "%sWPA-PSK", prefix);
529 fprintf(nconf, "\n");
530
531 fprintf(nconf, "wpa_pairwise=");
532 prefix = "";
533 if (cred->encr_type & WPS_ENCR_AES) {
534 fprintf(nconf, "CCMP");
535 prefix = " ";
536 }
537 if (cred->encr_type & WPS_ENCR_TKIP) {
538 fprintf(nconf, "%sTKIP", prefix);
539 }
540 fprintf(nconf, "\n");
541
542 if (cred->key_len >= 8 && cred->key_len < 64) {
543 fprintf(nconf, "wpa_passphrase=");
544 for (i = 0; i < cred->key_len; i++)
545 fputc(cred->key[i], nconf);
546 fprintf(nconf, "\n");
547 } else if (cred->key_len == 64) {
548 fprintf(nconf, "wpa_psk=");
549 for (i = 0; i < cred->key_len; i++)
550 fputc(cred->key[i], nconf);
551 fprintf(nconf, "\n");
552 } else {
553 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
554 "for WPA/WPA2",
555 (unsigned long) cred->key_len);
556 }
557
558 fprintf(nconf, "auth_algs=1\n");
559 } else {
Dmitry Shmidtd11f0192014-03-24 12:09:47 -0700560 /*
561 * WPS 2.0 does not allow WEP to be configured, so no need to
562 * process that option here either.
563 */
564 fprintf(nconf, "auth_algs=1\n");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700565 }
566
567 fprintf(nconf, "# WPS configuration - END\n");
568
569 multi_bss = 0;
570 while (fgets(buf, sizeof(buf), oconf)) {
571 if (os_strncmp(buf, "bss=", 4) == 0)
572 multi_bss = 1;
573 if (!multi_bss &&
574 (str_starts(buf, "ssid=") ||
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700575 str_starts(buf, "ssid2=") ||
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700576 str_starts(buf, "auth_algs=") ||
577 str_starts(buf, "wep_default_key=") ||
578 str_starts(buf, "wep_key") ||
579 str_starts(buf, "wps_state=") ||
580 str_starts(buf, "wpa=") ||
581 str_starts(buf, "wpa_psk=") ||
582 str_starts(buf, "wpa_pairwise=") ||
583 str_starts(buf, "rsn_pairwise=") ||
584 str_starts(buf, "wpa_key_mgmt=") ||
585 str_starts(buf, "wpa_passphrase="))) {
586 fprintf(nconf, "#WPS# %s", buf);
587 } else
588 fprintf(nconf, "%s", buf);
589 }
590
591 fclose(nconf);
592 fclose(oconf);
593
594 if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
595 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
596 "configuration file: %s", strerror(errno));
597 os_free(tmp_fname);
598 return -1;
599 }
600
601 os_free(tmp_fname);
602
603 /* Schedule configuration reload after short period of time to allow
604 * EAP-WSC to be finished.
605 */
606 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
607 NULL);
608
609 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
610
611 return 0;
612}
613
614
615static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
616{
617 struct hostapd_data *hapd = ctx;
618 return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
619}
620
621
622static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
623{
624 struct hostapd_data *hapd = eloop_data;
625
626 if (hapd->conf->ap_setup_locked)
627 return;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800628 if (hapd->ap_pin_failures_consecutive >= 10)
629 return;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700630
631 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
632 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
633 hapd->wps->ap_setup_locked = 0;
634 wps_registrar_update_ie(hapd->wps->registrar);
635}
636
637
638static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
639{
640 struct wps_event_pwd_auth_fail *data = ctx;
641
642 if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
643 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 hapd->ap_pin_failures++;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800651 hapd->ap_pin_failures_consecutive++;
652 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
653 "(%u consecutive)",
654 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700655 if (hapd->ap_pin_failures < 3)
656 return 0;
657
658 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
659 hapd->wps->ap_setup_locked = 1;
660
661 wps_registrar_update_ie(hapd->wps->registrar);
662
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800663 if (!hapd->conf->ap_setup_locked &&
664 hapd->ap_pin_failures_consecutive >= 10) {
665 /*
666 * In indefinite lockdown - disable automatic AP PIN
667 * reenablement.
668 */
669 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
670 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
671 } else if (!hapd->conf->ap_setup_locked) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700672 if (hapd->ap_pin_lockout_time == 0)
673 hapd->ap_pin_lockout_time = 60;
674 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
675 (hapd->ap_pin_failures % 3) == 0)
676 hapd->ap_pin_lockout_time *= 2;
677
678 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
679 hapd->ap_pin_lockout_time);
680 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
681 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
682 hostapd_wps_reenable_ap_pin, hapd,
683 NULL);
684 }
685
686 return 0;
687}
688
689
690static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
691 struct wps_event_pwd_auth_fail *data)
692{
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700693 /* Update WPS Status - Authentication Failure */
694 wpa_printf(MSG_DEBUG, "WPS: Authentication failure update");
695 hapd->wps_stats.status = WPS_STATUS_FAILURE;
696 hapd->wps_stats.failure_reason = WPS_EI_AUTH_FAILURE;
697 os_memcpy(hapd->wps_stats.peer_addr, data->peer_macaddr, ETH_ALEN);
698
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700699 hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
700}
701
702
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800703static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
704{
705 if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
706 return 0;
707
708 if (hapd->ap_pin_failures_consecutive == 0)
709 return 0;
710
711 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 hapd->ap_pin_failures_consecutive = 0;
715
716 return 0;
717}
718
719
720static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
721{
722 hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
723}
724
725
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700726static void hostapd_wps_event_pbc_overlap(struct hostapd_data *hapd)
727{
728 /* Update WPS Status - PBC Overlap */
729 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_OVERLAP;
730}
731
732
733static void hostapd_wps_event_pbc_timeout(struct hostapd_data *hapd)
734{
735 /* Update WPS PBC Status:PBC Timeout */
736 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_TIMEOUT;
737}
738
739
740static void hostapd_wps_event_pbc_active(struct hostapd_data *hapd)
741{
742 /* Update WPS PBC status - Active */
743 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_ACTIVE;
744}
745
746
747static void hostapd_wps_event_pbc_disable(struct hostapd_data *hapd)
748{
749 /* Update WPS PBC status - Active */
750 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
751}
752
753
754static void hostapd_wps_event_success(struct hostapd_data *hapd,
755 struct wps_event_success *success)
756{
757 /* Update WPS status - Success */
758 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
759 hapd->wps_stats.status = WPS_STATUS_SUCCESS;
760 os_memcpy(hapd->wps_stats.peer_addr, success->peer_macaddr, ETH_ALEN);
761}
762
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700763
764static void hostapd_wps_event_fail(struct hostapd_data *hapd,
765 struct wps_event_fail *fail)
766{
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700767 /* Update WPS status - Failure */
768 hapd->wps_stats.status = WPS_STATUS_FAILURE;
769 os_memcpy(hapd->wps_stats.peer_addr, fail->peer_macaddr, ETH_ALEN);
770
771 hapd->wps_stats.failure_reason = fail->error_indication;
772
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700773 if (fail->error_indication > 0 &&
774 fail->error_indication < NUM_WPS_EI_VALUES) {
775 wpa_msg(hapd->msg_ctx, MSG_INFO,
776 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
777 fail->msg, fail->config_error, fail->error_indication,
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700778 wps_ei_str(fail->error_indication));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700779 } else {
780 wpa_msg(hapd->msg_ctx, MSG_INFO,
781 WPS_EVENT_FAIL "msg=%d config_error=%d",
782 fail->msg, fail->config_error);
783 }
784}
785
786
787static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
788 union wps_event_data *data)
789{
790 struct hostapd_data *hapd = ctx;
791
792 switch (event) {
793 case WPS_EV_M2D:
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800794 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700795 break;
796 case WPS_EV_FAIL:
797 hostapd_wps_event_fail(hapd, &data->fail);
798 break;
799 case WPS_EV_SUCCESS:
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700800 hostapd_wps_event_success(hapd, &data->success);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800801 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700802 break;
803 case WPS_EV_PWD_AUTH_FAIL:
804 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
805 break;
806 case WPS_EV_PBC_OVERLAP:
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700807 hostapd_wps_event_pbc_overlap(hapd);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800808 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700809 break;
810 case WPS_EV_PBC_TIMEOUT:
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700811 hostapd_wps_event_pbc_timeout(hapd);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800812 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700813 break;
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700814 case WPS_EV_PBC_ACTIVE:
815 hostapd_wps_event_pbc_active(hapd);
816 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ACTIVE);
817 break;
818 case WPS_EV_PBC_DISABLE:
819 hostapd_wps_event_pbc_disable(hapd);
820 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_DISABLE);
821 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700822 case WPS_EV_ER_AP_ADD:
823 break;
824 case WPS_EV_ER_AP_REMOVE:
825 break;
826 case WPS_EV_ER_ENROLLEE_ADD:
827 break;
828 case WPS_EV_ER_ENROLLEE_REMOVE:
829 break;
830 case WPS_EV_ER_AP_SETTINGS:
831 break;
832 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
833 break;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800834 case WPS_EV_AP_PIN_SUCCESS:
835 hostapd_wps_ap_pin_success(hapd);
836 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700837 }
838 if (hapd->wps_event_cb)
839 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
840}
841
842
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700843static int hostapd_wps_rf_band_cb(void *ctx)
844{
845 struct hostapd_data *hapd = ctx;
846
847 return hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
848 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
849}
850
851
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -0700852static void hostapd_wps_clear_ies(struct hostapd_data *hapd, int deinit_only)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700853{
854 wpabuf_free(hapd->wps_beacon_ie);
855 hapd->wps_beacon_ie = NULL;
856
857 wpabuf_free(hapd->wps_probe_resp_ie);
858 hapd->wps_probe_resp_ie = NULL;
859
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -0700860 if (deinit_only)
861 return;
862
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700863 hostapd_set_ap_wps_ie(hapd);
864}
865
866
867static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
868{
869 const u8 **uuid = ctx;
870 size_t j;
871
872 if (iface == NULL)
873 return 0;
874 for (j = 0; j < iface->num_bss; j++) {
875 struct hostapd_data *hapd = iface->bss[j];
Dmitry Shmidt444d5672013-04-01 13:08:44 -0700876 if (hapd->wps && !hapd->conf->wps_independent &&
877 !is_nil_uuid(hapd->wps->uuid)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700878 *uuid = hapd->wps->uuid;
879 return 1;
880 }
881 }
882
883 return 0;
884}
885
886
887static const u8 * get_own_uuid(struct hostapd_iface *iface)
888{
889 const u8 *uuid;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700890 if (iface->interfaces == NULL ||
891 iface->interfaces->for_each_interface == NULL)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700892 return NULL;
893 uuid = NULL;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700894 iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
895 &uuid);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700896 return uuid;
897}
898
899
900static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
901{
902 int *count= ctx;
903 (*count)++;
904 return 0;
905}
906
907
908static int interface_count(struct hostapd_iface *iface)
909{
910 int count = 0;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700911 if (iface->interfaces == NULL ||
912 iface->interfaces->for_each_interface == NULL)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700913 return 0;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700914 iface->interfaces->for_each_interface(iface->interfaces,
915 count_interface_cb, &count);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700916 return count;
917}
918
919
920static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
921 struct wps_context *wps)
922{
923 int i;
924
925 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
926 wpabuf_free(wps->dev.vendor_ext[i]);
927 wps->dev.vendor_ext[i] = NULL;
928
929 if (hapd->conf->wps_vendor_ext[i] == NULL)
930 continue;
931
932 wps->dev.vendor_ext[i] =
933 wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
934 if (wps->dev.vendor_ext[i] == NULL) {
935 while (--i >= 0)
936 wpabuf_free(wps->dev.vendor_ext[i]);
937 return -1;
938 }
939 }
940
941 return 0;
942}
943
944
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -0700945static void hostapd_free_wps(struct wps_context *wps)
946{
947 int i;
948
949 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
950 wpabuf_free(wps->dev.vendor_ext[i]);
951 wps_device_data_free(&wps->dev);
952 os_free(wps->network_key);
953 hostapd_wps_nfc_clear(wps);
954 wpabuf_free(wps->dh_pubkey);
955 wpabuf_free(wps->dh_privkey);
956 os_free(wps);
957}
958
959
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700960int 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 if (conf->wps_state == 0) {
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -0700967 hostapd_wps_clear_ies(hapd, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700968 return 0;
969 }
970
971 wps = os_zalloc(sizeof(*wps));
972 if (wps == NULL)
973 return -1;
974
975 wps->cred_cb = hostapd_wps_cred_cb;
976 wps->event_cb = hostapd_wps_event_cb;
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700977 wps->rf_band_cb = hostapd_wps_rf_band_cb;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700978 wps->cb_ctx = hapd;
979
980 os_memset(&cfg, 0, sizeof(cfg));
981 wps->wps_state = hapd->conf->wps_state;
982 wps->ap_setup_locked = hapd->conf->ap_setup_locked;
983 if (is_nil_uuid(hapd->conf->uuid)) {
984 const u8 *uuid;
985 uuid = get_own_uuid(hapd->iface);
Dmitry Shmidt444d5672013-04-01 13:08:44 -0700986 if (uuid && !conf->wps_independent) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700987 os_memcpy(wps->uuid, uuid, UUID_LEN);
988 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
989 "interface", wps->uuid, UUID_LEN);
990 } else {
991 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
992 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
993 "address", wps->uuid, UUID_LEN);
994 }
995 } else {
996 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
997 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
998 wps->uuid, UUID_LEN);
999 }
1000 wps->ssid_len = hapd->conf->ssid.ssid_len;
1001 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
1002 wps->ap = 1;
1003 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
1004 wps->dev.device_name = hapd->conf->device_name ?
1005 os_strdup(hapd->conf->device_name) : NULL;
1006 wps->dev.manufacturer = hapd->conf->manufacturer ?
1007 os_strdup(hapd->conf->manufacturer) : NULL;
1008 wps->dev.model_name = hapd->conf->model_name ?
1009 os_strdup(hapd->conf->model_name) : NULL;
1010 wps->dev.model_number = hapd->conf->model_number ?
1011 os_strdup(hapd->conf->model_number) : NULL;
1012 wps->dev.serial_number = hapd->conf->serial_number ?
1013 os_strdup(hapd->conf->serial_number) : NULL;
1014 wps->config_methods =
1015 wps_config_methods_str2bin(hapd->conf->config_methods);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001016 if ((wps->config_methods &
1017 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1018 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1019 wpa_printf(MSG_INFO, "WPS: Converting display to "
1020 "virtual_display for WPS 2.0 compliance");
1021 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1022 }
1023 if ((wps->config_methods &
1024 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1025 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1026 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1027 "virtual_push_button for WPS 2.0 compliance");
1028 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1029 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001030 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
1031 WPS_DEV_TYPE_LEN);
1032
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001033 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0)
1034 goto fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001035
1036 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001037
1038 if (conf->wps_rf_bands) {
1039 wps->dev.rf_bands = conf->wps_rf_bands;
1040 } else {
1041 wps->dev.rf_bands =
1042 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
1043 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
1044 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001045
1046 if (conf->wpa & WPA_PROTO_RSN) {
1047 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1048 wps->auth_types |= WPS_AUTH_WPA2PSK;
1049 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1050 wps->auth_types |= WPS_AUTH_WPA2;
1051
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001052 if (conf->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001053 wps->encr_types |= WPS_ENCR_AES;
1054 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
1055 wps->encr_types |= WPS_ENCR_TKIP;
1056 }
1057
1058 if (conf->wpa & WPA_PROTO_WPA) {
1059 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1060 wps->auth_types |= WPS_AUTH_WPAPSK;
1061 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1062 wps->auth_types |= WPS_AUTH_WPA;
1063
1064 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
1065 wps->encr_types |= WPS_ENCR_AES;
1066 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
1067 wps->encr_types |= WPS_ENCR_TKIP;
1068 }
1069
1070 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
1071 wps->encr_types |= WPS_ENCR_NONE;
1072 wps->auth_types |= WPS_AUTH_OPEN;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001073 }
1074
1075 if (conf->ssid.wpa_psk_file) {
1076 /* Use per-device PSKs */
1077 } else if (conf->ssid.wpa_passphrase) {
1078 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1079 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1080 } else if (conf->ssid.wpa_psk) {
1081 wps->network_key = os_malloc(2 * PMK_LEN + 1);
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001082 if (wps->network_key == NULL)
1083 goto fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001084 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1085 conf->ssid.wpa_psk->psk, PMK_LEN);
1086 wps->network_key_len = 2 * PMK_LEN;
1087 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1088 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001089 if (wps->network_key == NULL)
1090 goto fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001091 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1092 conf->ssid.wep.len[0]);
1093 wps->network_key_len = conf->ssid.wep.len[0];
1094 }
1095
1096 if (conf->ssid.wpa_psk) {
1097 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1098 wps->psk_set = 1;
1099 }
1100
Dmitry Shmidt96be6222014-02-13 10:16:51 -08001101 wps->ap_auth_type = wps->auth_types;
1102 wps->ap_encr_type = wps->encr_types;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001103 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
1104 /* Override parameters to enable security by default */
1105 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1106 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1107 }
1108
1109 wps->ap_settings = conf->ap_settings;
1110 wps->ap_settings_len = conf->ap_settings_len;
1111
1112 cfg.new_psk_cb = hostapd_wps_new_psk_cb;
1113 cfg.set_ie_cb = hostapd_wps_set_ie_cb;
1114 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
1115 cfg.reg_success_cb = hostapd_wps_reg_success_cb;
1116 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
1117 cfg.cb_ctx = hapd;
1118 cfg.skip_cred_build = conf->skip_cred_build;
1119 cfg.extra_cred = conf->extra_cred;
1120 cfg.extra_cred_len = conf->extra_cred_len;
1121 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
1122 conf->skip_cred_build;
1123 if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
1124 cfg.static_wep_only = 1;
1125 cfg.dualband = interface_count(hapd->iface) > 1;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001126 if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
1127 (WPS_RF_50GHZ | WPS_RF_24GHZ))
1128 cfg.dualband = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001129 if (cfg.dualband)
1130 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
Dmitry Shmidt391c59f2013-09-03 12:16:28 -07001131 cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001132
1133 wps->registrar = wps_registrar_init(wps, &cfg);
1134 if (wps->registrar == NULL) {
1135 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001136 goto fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001137 }
1138
1139#ifdef CONFIG_WPS_UPNP
1140 wps->friendly_name = hapd->conf->friendly_name;
1141 wps->manufacturer_url = hapd->conf->manufacturer_url;
1142 wps->model_description = hapd->conf->model_description;
1143 wps->model_url = hapd->conf->model_url;
1144 wps->upc = hapd->conf->upc;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001145#endif /* CONFIG_WPS_UPNP */
1146
1147 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
1148
1149 hapd->wps = wps;
1150
1151 return 0;
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001152
1153fail:
1154 hostapd_free_wps(wps);
1155 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001156}
1157
1158
Jouni Malinen87fd2792011-05-16 18:35:42 +03001159int hostapd_init_wps_complete(struct hostapd_data *hapd)
1160{
1161 struct wps_context *wps = hapd->wps;
1162
Jouni Malinen75ecf522011-06-27 15:19:46 -07001163 if (wps == NULL)
Jouni Malinen87fd2792011-05-16 18:35:42 +03001164 return 0;
1165
1166#ifdef CONFIG_WPS_UPNP
1167 if (hostapd_wps_upnp_init(hapd, wps) < 0) {
1168 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
1169 wps_registrar_deinit(wps->registrar);
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001170 hostapd_free_wps(wps);
Jouni Malinen87fd2792011-05-16 18:35:42 +03001171 hapd->wps = NULL;
1172 return -1;
1173 }
1174#endif /* CONFIG_WPS_UPNP */
1175
1176 return 0;
1177}
1178
1179
Dmitry Shmidt04949592012-07-19 12:16:46 -07001180static void hostapd_wps_nfc_clear(struct wps_context *wps)
1181{
1182#ifdef CONFIG_WPS_NFC
Dmitry Shmidt54605472013-11-08 11:10:19 -08001183 wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001184 wps->ap_nfc_dev_pw_id = 0;
1185 wpabuf_free(wps->ap_nfc_dh_pubkey);
1186 wps->ap_nfc_dh_pubkey = NULL;
1187 wpabuf_free(wps->ap_nfc_dh_privkey);
1188 wps->ap_nfc_dh_privkey = NULL;
1189 wpabuf_free(wps->ap_nfc_dev_pw);
1190 wps->ap_nfc_dev_pw = NULL;
1191#endif /* CONFIG_WPS_NFC */
1192}
1193
1194
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001195void hostapd_deinit_wps(struct hostapd_data *hapd)
1196{
1197 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
1198 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001199 eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL);
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001200 if (hapd->wps == NULL) {
1201 hostapd_wps_clear_ies(hapd, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001202 return;
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001203 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001204#ifdef CONFIG_WPS_UPNP
1205 hostapd_wps_upnp_deinit(hapd);
1206#endif /* CONFIG_WPS_UPNP */
1207 wps_registrar_deinit(hapd->wps->registrar);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001208 wps_free_pending_msgs(hapd->wps->upnp_msgs);
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001209 hostapd_free_wps(hapd->wps);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001210 hapd->wps = NULL;
Dmitry Shmidt6cb1f652014-03-21 10:54:03 -07001211 hostapd_wps_clear_ies(hapd, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001212}
1213
1214
1215void hostapd_update_wps(struct hostapd_data *hapd)
1216{
1217 if (hapd->wps == NULL)
1218 return;
1219
1220#ifdef CONFIG_WPS_UPNP
1221 hapd->wps->friendly_name = hapd->conf->friendly_name;
1222 hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
1223 hapd->wps->model_description = hapd->conf->model_description;
1224 hapd->wps->model_url = hapd->conf->model_url;
1225 hapd->wps->upc = hapd->conf->upc;
1226#endif /* CONFIG_WPS_UPNP */
1227
1228 hostapd_wps_set_vendor_ext(hapd, hapd->wps);
1229
1230 if (hapd->conf->wps_state)
1231 wps_registrar_update_ie(hapd->wps->registrar);
1232 else
1233 hostapd_deinit_wps(hapd);
1234}
1235
1236
1237struct 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
1247static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1248{
1249 struct wps_add_pin_data *data = ctx;
1250 int ret;
1251
1252 if (hapd->wps == NULL)
1253 return 0;
1254 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1255 data->uuid, data->pin, data->pin_len,
1256 data->timeout);
1257 if (ret == 0)
1258 data->added++;
1259 return ret;
1260}
1261
1262
1263int 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 data.addr = addr;
1270 data.uuid = u;
1271 data.pin = (const u8 *) pin;
1272 data.pin_len = os_strlen(pin);
1273 data.timeout = timeout;
1274 data.added = 0;
1275
1276 if (os_strcmp(uuid, "any") == 0)
1277 data.uuid = NULL;
1278 else {
1279 if (uuid_str2bin(uuid, u))
1280 return -1;
1281 data.uuid = u;
1282 }
1283 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1284 return -1;
1285 return data.added ? 0 : -1;
1286}
1287
1288
1289static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1290{
1291 const u8 *p2p_dev_addr = ctx;
1292 if (hapd->wps == NULL)
Dmitry Shmidt6dc03bd2014-05-16 10:40:13 -07001293 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001294 return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
1295}
1296
1297
1298int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1299 const u8 *p2p_dev_addr)
1300{
1301 return hostapd_wps_for_each(hapd, wps_button_pushed,
1302 (void *) p2p_dev_addr);
1303}
1304
1305
Dmitry Shmidt04949592012-07-19 12:16:46 -07001306static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1307{
1308 if (hapd->wps == NULL)
Dmitry Shmidt6dc03bd2014-05-16 10:40:13 -07001309 return -1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001310
1311 wps_registrar_wps_cancel(hapd->wps->registrar);
1312 ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1313
1314 return 0;
1315}
1316
1317
1318int hostapd_wps_cancel(struct hostapd_data *hapd)
1319{
1320 return hostapd_wps_for_each(hapd, wps_cancel, NULL);
1321}
1322
1323
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001324static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1325 const u8 *bssid,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001326 const u8 *ie, size_t ie_len,
1327 int ssi_signal)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001328{
1329 struct hostapd_data *hapd = ctx;
1330 struct wpabuf *wps_ie;
1331 struct ieee802_11_elems elems;
1332
1333 if (hapd->wps == NULL)
1334 return 0;
1335
1336 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1337 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1338 MACSTR, MAC2STR(addr));
1339 return 0;
1340 }
1341
1342 if (elems.ssid && elems.ssid_len > 0 &&
1343 (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1344 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1345 0))
1346 return 0; /* Not for us */
1347
1348 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1349 if (wps_ie == NULL)
1350 return 0;
1351 if (wps_validate_probe_req(wps_ie, addr) < 0) {
1352 wpabuf_free(wps_ie);
1353 return 0;
1354 }
1355
1356 if (wpabuf_len(wps_ie) > 0) {
1357 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 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 if (!p2p_wildcard)
1370 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 wpabuf_free(wps_ie);
1377
1378 return 0;
1379}
1380
1381
1382#ifdef CONFIG_WPS_UPNP
1383
1384static 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 struct hostapd_data *hapd = priv;
1390 struct sta_info *sta;
1391 struct upnp_pending_message *p;
1392
1393 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1394 MACSTR, ev_type, MAC2STR(mac_addr));
1395 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1396 wpabuf_head(msg), wpabuf_len(msg));
1397 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1398 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1399 "PutWLANResponse WLANEventType %d", ev_type);
1400 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 sta = ap_get_sta(hapd, mac_addr);
1409#ifndef CONFIG_WPS_STRICT
1410 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 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1417 "on NewWLANEventMAC; try wildcard match");
1418 for (sta = hapd->sta_list; sta; sta = sta->next) {
1419 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1420 break;
1421 }
1422 }
1423#endif /* CONFIG_WPS_STRICT */
1424
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001425 if (!sta || !(sta->flags & WLAN_STA_WPS)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001426 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1427 return 0;
1428 }
1429
Dmitry Shmidt13ca8d82014-02-20 10:18:40 -08001430 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 wpa_printf(MSG_DEBUG, "WPS UPnP: Matching STA did not have EAPOL state machine initialized");
1437 return 0;
1438 }
1439
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001440 p = os_zalloc(sizeof(*p));
1441 if (p == NULL)
1442 return -1;
1443 os_memcpy(p->addr, sta->addr, ETH_ALEN);
1444 p->msg = wpabuf_dup(msg);
1445 p->type = msg_type;
1446 p->next = hapd->wps->upnp_msgs;
1447 hapd->wps->upnp_msgs = p;
1448
1449 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1450}
1451
1452
1453static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1454 struct wps_context *wps)
1455{
1456 struct upnp_wps_device_ctx *ctx;
1457
1458 if (!hapd->conf->upnp_iface)
1459 return 0;
1460 ctx = os_zalloc(sizeof(*ctx));
1461 if (ctx == NULL)
1462 return -1;
1463
1464 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1465 if (hapd->conf->ap_pin)
1466 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1467
1468 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1469 hapd->conf->upnp_iface);
1470 if (hapd->wps_upnp == NULL)
1471 return -1;
1472 wps->wps_upnp = hapd->wps_upnp;
1473
1474 return 0;
1475}
1476
1477
1478static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1479{
1480 upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1481}
1482
1483#endif /* CONFIG_WPS_UPNP */
1484
1485
1486int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1487 char *buf, size_t buflen)
1488{
1489 if (hapd->wps == NULL)
1490 return 0;
1491 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1492}
1493
1494
1495static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1496{
1497 struct hostapd_data *hapd = eloop_data;
1498 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1499 hostapd_wps_ap_pin_disable(hapd);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001500 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001501}
1502
1503
1504static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1505{
1506 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1507 hapd->ap_pin_failures = 0;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001508 hapd->ap_pin_failures_consecutive = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001509 hapd->conf->ap_setup_locked = 0;
1510 if (hapd->wps->ap_setup_locked) {
1511 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1512 hapd->wps->ap_setup_locked = 0;
1513 wps_registrar_update_ie(hapd->wps->registrar);
1514 }
1515 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1516 if (timeout > 0)
1517 eloop_register_timeout(timeout, 0,
1518 hostapd_wps_ap_pin_timeout, hapd, NULL);
1519}
1520
1521
1522static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1523{
1524 os_free(hapd->conf->ap_pin);
1525 hapd->conf->ap_pin = NULL;
1526#ifdef CONFIG_WPS_UPNP
1527 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1528#endif /* CONFIG_WPS_UPNP */
1529 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1530 return 0;
1531}
1532
1533
1534void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1535{
1536 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1537 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1538}
1539
1540
1541struct wps_ap_pin_data {
1542 char pin_txt[9];
1543 int timeout;
1544};
1545
1546
1547static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1548{
1549 struct wps_ap_pin_data *data = ctx;
1550 os_free(hapd->conf->ap_pin);
1551 hapd->conf->ap_pin = os_strdup(data->pin_txt);
1552#ifdef CONFIG_WPS_UPNP
1553 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1554#endif /* CONFIG_WPS_UPNP */
1555 hostapd_wps_ap_pin_enable(hapd, data->timeout);
1556 return 0;
1557}
1558
1559
1560const 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 pin = wps_generate_pin();
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001566 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001567 data.timeout = timeout;
1568 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1569 return hapd->conf->ap_pin;
1570}
1571
1572
1573const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1574{
1575 return hapd->conf->ap_pin;
1576}
1577
1578
1579int 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 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001586 if (os_snprintf_error(sizeof(data.pin_txt), ret))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001587 return -1;
1588 data.timeout = timeout;
1589 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1590}
1591
1592
1593static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1594{
1595 if (hapd->wps)
1596 wps_registrar_update_ie(hapd->wps->registrar);
1597 return 0;
1598}
1599
1600
1601void hostapd_wps_update_ie(struct hostapd_data *hapd)
1602{
1603 hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1604}
1605
1606
1607int 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 os_memset(&cred, 0, sizeof(cred));
1614
1615 len = os_strlen(ssid);
1616 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1617 hexstr2bin(ssid, cred.ssid, len / 2))
1618 return -1;
1619 cred.ssid_len = len / 2;
1620
1621 if (os_strncmp(auth, "OPEN", 4) == 0)
1622 cred.auth_type = WPS_AUTH_OPEN;
1623 else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1624 cred.auth_type = WPS_AUTH_WPAPSK;
1625 else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1626 cred.auth_type = WPS_AUTH_WPA2PSK;
1627 else
1628 return -1;
1629
1630 if (encr) {
1631 if (os_strncmp(encr, "NONE", 4) == 0)
1632 cred.encr_type = WPS_ENCR_NONE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001633 else if (os_strncmp(encr, "TKIP", 4) == 0)
1634 cred.encr_type = WPS_ENCR_TKIP;
1635 else if (os_strncmp(encr, "CCMP", 4) == 0)
1636 cred.encr_type = WPS_ENCR_AES;
1637 else
1638 return -1;
1639 } else
1640 cred.encr_type = WPS_ENCR_NONE;
1641
1642 if (key) {
1643 len = os_strlen(key);
1644 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1645 hexstr2bin(key, cred.key, len / 2))
1646 return -1;
1647 cred.key_len = len / 2;
1648 }
1649
1650 return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1651}
Dmitry Shmidt04949592012-07-19 12:16:46 -07001652
1653
1654#ifdef CONFIG_WPS_NFC
1655
1656struct wps_nfc_password_token_data {
1657 const u8 *oob_dev_pw;
1658 size_t oob_dev_pw_len;
1659 int added;
1660};
1661
1662
1663static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
1664{
1665 struct wps_nfc_password_token_data *data = ctx;
1666 int ret;
1667
1668 if (hapd->wps == NULL)
1669 return 0;
1670 ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
1671 data->oob_dev_pw,
1672 data->oob_dev_pw_len);
1673 if (ret == 0)
1674 data->added++;
1675 return ret;
1676}
1677
1678
1679static 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 data.oob_dev_pw = attr->oob_dev_password;
1685 data.oob_dev_pw_len = attr->oob_dev_password_len;
1686 data.added = 0;
1687 if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
1688 return -1;
1689 return data.added ? 0 : -1;
1690}
1691
1692
1693static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
1694 const struct wpabuf *wps)
1695{
1696 struct wps_parse_attr attr;
1697
1698 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1699
1700 if (wps_parse_msg(wps, &attr)) {
1701 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1702 return -1;
1703 }
1704
1705 if (attr.oob_dev_password)
1706 return hostapd_wps_add_nfc_password_token(hapd, &attr);
1707
1708 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1709 return -1;
1710}
1711
1712
1713int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
1714 const struct wpabuf *data)
1715{
1716 const struct wpabuf *wps = data;
1717 struct wpabuf *tmp = NULL;
1718 int ret;
1719
1720 if (wpabuf_len(data) < 4)
1721 return -1;
1722
1723 if (*wpabuf_head_u8(data) != 0x10) {
1724 /* Assume this contains full NDEF record */
1725 tmp = ndef_parse_wifi(data);
1726 if (tmp == NULL) {
1727 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1728 return -1;
1729 }
1730 wps = tmp;
1731 }
1732
1733 ret = hostapd_wps_nfc_tag_process(hapd, wps);
1734 wpabuf_free(tmp);
1735 return ret;
1736}
1737
1738
1739struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
1740 int ndef)
1741{
1742 struct wpabuf *ret;
1743
1744 if (hapd->wps == NULL)
1745 return NULL;
1746
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001747 ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd),
1748 hapd->iconf->channel);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001749 if (ndef && ret) {
1750 struct wpabuf *tmp;
1751 tmp = ndef_build_wifi(ret);
1752 wpabuf_free(ret);
1753 if (tmp == NULL)
1754 return NULL;
1755 ret = tmp;
1756 }
1757
1758 return ret;
1759}
1760
1761
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001762struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
1763{
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001764 struct wpabuf *ret;
1765
1766 if (hapd->wps == NULL)
1767 return NULL;
1768
1769 if (hapd->conf->wps_nfc_dh_pubkey == NULL) {
1770 struct wps_context *wps = hapd->wps;
1771 if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey,
1772 &hapd->conf->wps_nfc_dh_privkey) < 0)
1773 return NULL;
1774 hostapd_wps_nfc_clear(wps);
1775 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
1776 wps->ap_nfc_dh_pubkey =
1777 wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1778 wps->ap_nfc_dh_privkey =
1779 wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1780 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
1781 hostapd_wps_nfc_clear(wps);
1782 return NULL;
1783 }
1784 }
1785
1786 ret = wps_build_nfc_handover_sel(hapd->wps,
1787 hapd->conf->wps_nfc_dh_pubkey,
1788 hapd->own_addr, hapd->iface->freq);
1789
1790 if (ndef && ret) {
1791 struct wpabuf *tmp;
1792 tmp = ndef_build_wifi(ret);
1793 wpabuf_free(ret);
1794 if (tmp == NULL)
1795 return NULL;
1796 ret = tmp;
1797 }
1798
1799 return ret;
1800}
1801
1802
1803int 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 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
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001815 /*
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001816 * Enrollee/station is always initiator of the NFC connection handover,
1817 * so use the request message here to find Enrollee public key hash.
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001818 */
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001819 wps = ndef_parse_wifi(req);
1820 if (wps == NULL)
1821 return -1;
1822 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
1823 "payload from NFC connection handover");
1824 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
1825 if (wpabuf_len(wps) < 2) {
1826 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
1827 "Message");
1828 goto out;
1829 }
1830 pos = wpabuf_head(wps);
1831 wsc_len = WPA_GET_BE16(pos);
1832 if (wsc_len > wpabuf_len(wps) - 2) {
1833 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
1834 "in rt Wi-Fi Handover Request Message", wsc_len);
1835 goto out;
1836 }
1837 pos += 2;
1838
1839 wpa_hexdump(MSG_DEBUG,
1840 "WPS: WSC attributes in Wi-Fi Handover Request Message",
1841 pos, wsc_len);
1842 if (wsc_len < wpabuf_len(wps) - 2) {
1843 wpa_hexdump(MSG_DEBUG,
1844 "WPS: Ignore extra data after WSC attributes",
1845 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
1846 }
1847
1848 wpabuf_set(&msg, pos, wsc_len);
1849 ret = wps_parse_msg(&msg, &attr);
1850 if (ret < 0) {
1851 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
1852 "Wi-Fi Handover Request Message");
1853 goto out;
1854 }
1855
1856 if (attr.oob_dev_password == NULL ||
1857 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
1858 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
1859 "included in Wi-Fi Handover Request Message");
1860 ret = -1;
1861 goto out;
1862 }
1863
1864 if (attr.uuid_e == NULL) {
1865 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
1866 "Handover Request Message");
1867 ret = -1;
1868 goto out;
1869 }
1870
1871 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
1872
1873 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
1874 attr.oob_dev_password, attr.oob_dev_password_len);
1875 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
1876 WPS_OOB_PUBKEY_HASH_LEN);
1877 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
1878 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
1879 "%u in Wi-Fi Handover Request Message", dev_pw_id);
1880 ret = -1;
1881 goto out;
1882 }
1883 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
1884 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
1885
1886 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
1891out:
1892 wpabuf_free(wps);
1893 return ret;
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001894}
1895
1896
Dmitry Shmidt04949592012-07-19 12:16:46 -07001897struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
1898{
Dmitry Shmidtf8623282013-02-20 14:34:59 -08001899 if (hapd->conf->wps_nfc_pw_from_config) {
1900 return wps_nfc_token_build(ndef,
1901 hapd->conf->wps_nfc_dev_pw_id,
1902 hapd->conf->wps_nfc_dh_pubkey,
1903 hapd->conf->wps_nfc_dev_pw);
1904 }
1905
Dmitry Shmidt04949592012-07-19 12:16:46 -07001906 return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
1907 &hapd->conf->wps_nfc_dh_pubkey,
1908 &hapd->conf->wps_nfc_dh_privkey,
1909 &hapd->conf->wps_nfc_dev_pw);
1910}
1911
1912
1913int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
1914{
1915 struct wps_context *wps = hapd->wps;
Dmitry Shmidt33e38bf2013-02-27 12:56:00 -08001916 struct wpabuf *pw;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001917
1918 if (wps == NULL)
1919 return -1;
1920
1921 if (!hapd->conf->wps_nfc_dh_pubkey ||
1922 !hapd->conf->wps_nfc_dh_privkey ||
1923 !hapd->conf->wps_nfc_dev_pw ||
1924 !hapd->conf->wps_nfc_dev_pw_id)
1925 return -1;
1926
1927 hostapd_wps_nfc_clear(wps);
Dmitry Shmidt54605472013-11-08 11:10:19 -08001928 wpa_printf(MSG_DEBUG,
1929 "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)",
1930 hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001931 wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
1932 wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1933 wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
Dmitry Shmidt33e38bf2013-02-27 12:56:00 -08001934 pw = hapd->conf->wps_nfc_dev_pw;
1935 wps->ap_nfc_dev_pw = wpabuf_alloc(
1936 wpabuf_len(pw) * 2 + 1);
1937 if (wps->ap_nfc_dev_pw) {
1938 wpa_snprintf_hex_uppercase(
1939 (char *) wpabuf_put(wps->ap_nfc_dev_pw,
1940 wpabuf_len(pw) * 2),
1941 wpabuf_len(pw) * 2 + 1,
1942 wpabuf_head(pw), wpabuf_len(pw));
1943 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07001944
1945 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
1946 !wps->ap_nfc_dev_pw) {
1947 hostapd_wps_nfc_clear(wps);
1948 return -1;
1949 }
1950
1951 return 0;
1952}
1953
1954
1955void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
1956{
Dmitry Shmidt54605472013-11-08 11:10:19 -08001957 wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s",
1958 hapd->conf->iface);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001959 hostapd_wps_nfc_clear(hapd->wps);
1960}
1961
1962#endif /* CONFIG_WPS_NFC */