Line data Source code
1 : /*
2 : * Wi-Fi Protected Setup
3 : * Copyright (c) 2007-2009, 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 "includes.h"
10 :
11 : #include "common.h"
12 : #include "crypto/dh_group5.h"
13 : #include "common/ieee802_11_defs.h"
14 : #include "wps_i.h"
15 : #include "wps_dev_attr.h"
16 :
17 :
18 : #ifdef CONFIG_WPS_TESTING
19 : int wps_version_number = 0x20;
20 : int wps_testing_dummy_cred = 0;
21 : int wps_corrupt_pkhash = 0;
22 : #endif /* CONFIG_WPS_TESTING */
23 :
24 :
25 : /**
26 : * wps_init - Initialize WPS Registration protocol data
27 : * @cfg: WPS configuration
28 : * Returns: Pointer to allocated data or %NULL on failure
29 : *
30 : * This function is used to initialize WPS data for a registration protocol
31 : * instance (i.e., each run of registration protocol as a Registrar of
32 : * Enrollee. The caller is responsible for freeing this data after the
33 : * registration run has been completed by calling wps_deinit().
34 : */
35 422 : struct wps_data * wps_init(const struct wps_config *cfg)
36 : {
37 422 : struct wps_data *data = os_zalloc(sizeof(*data));
38 422 : if (data == NULL)
39 0 : return NULL;
40 422 : data->wps = cfg->wps;
41 422 : data->registrar = cfg->registrar;
42 422 : if (cfg->registrar) {
43 210 : os_memcpy(data->uuid_r, cfg->wps->uuid, WPS_UUID_LEN);
44 : } else {
45 212 : os_memcpy(data->mac_addr_e, cfg->wps->dev.mac_addr, ETH_ALEN);
46 212 : os_memcpy(data->uuid_e, cfg->wps->uuid, WPS_UUID_LEN);
47 : }
48 422 : if (cfg->pin) {
49 198 : data->dev_pw_id = cfg->dev_pw_id;
50 198 : data->dev_password = os_malloc(cfg->pin_len);
51 198 : if (data->dev_password == NULL) {
52 0 : os_free(data);
53 0 : return NULL;
54 : }
55 198 : os_memcpy(data->dev_password, cfg->pin, cfg->pin_len);
56 198 : data->dev_password_len = cfg->pin_len;
57 396 : wpa_hexdump_key(MSG_DEBUG, "WPS: AP PIN dev_password",
58 198 : data->dev_password, data->dev_password_len);
59 : }
60 :
61 : #ifdef CONFIG_WPS_NFC
62 646 : if (cfg->pin == NULL &&
63 224 : cfg->dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER)
64 17 : data->dev_pw_id = cfg->dev_pw_id;
65 :
66 422 : if (cfg->wps->ap && !cfg->registrar && cfg->wps->ap_nfc_dev_pw_id) {
67 : /* Keep AP PIN as alternative Device Password */
68 1 : data->alt_dev_pw_id = data->dev_pw_id;
69 1 : data->alt_dev_password = data->dev_password;
70 1 : data->alt_dev_password_len = data->dev_password_len;
71 :
72 1 : data->dev_pw_id = cfg->wps->ap_nfc_dev_pw_id;
73 1 : data->dev_password =
74 1 : os_malloc(wpabuf_len(cfg->wps->ap_nfc_dev_pw));
75 1 : if (data->dev_password == NULL) {
76 0 : os_free(data);
77 0 : return NULL;
78 : }
79 1 : os_memcpy(data->dev_password,
80 : wpabuf_head(cfg->wps->ap_nfc_dev_pw),
81 : wpabuf_len(cfg->wps->ap_nfc_dev_pw));
82 1 : data->dev_password_len = wpabuf_len(cfg->wps->ap_nfc_dev_pw);
83 2 : wpa_hexdump_key(MSG_DEBUG, "WPS: NFC dev_password",
84 1 : data->dev_password, data->dev_password_len);
85 : }
86 : #endif /* CONFIG_WPS_NFC */
87 :
88 422 : data->pbc = cfg->pbc;
89 422 : if (cfg->pbc) {
90 : /* Use special PIN '00000000' for PBC */
91 30 : data->dev_pw_id = DEV_PW_PUSHBUTTON;
92 30 : os_free(data->dev_password);
93 30 : data->dev_password = (u8 *) os_strdup("00000000");
94 30 : if (data->dev_password == NULL) {
95 0 : os_free(data);
96 0 : return NULL;
97 : }
98 30 : data->dev_password_len = 8;
99 : }
100 :
101 422 : data->state = data->registrar ? RECV_M1 : SEND_M1;
102 :
103 422 : if (cfg->assoc_wps_ie) {
104 : struct wps_parse_attr attr;
105 200 : wpa_hexdump_buf(MSG_DEBUG, "WPS: WPS IE from (Re)AssocReq",
106 : cfg->assoc_wps_ie);
107 200 : if (wps_parse_msg(cfg->assoc_wps_ie, &attr) < 0) {
108 0 : wpa_printf(MSG_DEBUG, "WPS: Failed to parse WPS IE "
109 : "from (Re)AssocReq");
110 200 : } else if (attr.request_type == NULL) {
111 0 : wpa_printf(MSG_DEBUG, "WPS: No Request Type attribute "
112 : "in (Re)AssocReq WPS IE");
113 : } else {
114 200 : wpa_printf(MSG_DEBUG, "WPS: Request Type (from WPS IE "
115 : "in (Re)AssocReq WPS IE): %d",
116 200 : *attr.request_type);
117 200 : data->request_type = *attr.request_type;
118 : }
119 : }
120 :
121 422 : if (cfg->new_ap_settings) {
122 17 : data->new_ap_settings =
123 17 : os_malloc(sizeof(*data->new_ap_settings));
124 17 : if (data->new_ap_settings == NULL) {
125 0 : os_free(data->dev_password);
126 0 : os_free(data);
127 0 : return NULL;
128 : }
129 17 : os_memcpy(data->new_ap_settings, cfg->new_ap_settings,
130 : sizeof(*data->new_ap_settings));
131 : }
132 :
133 422 : if (cfg->peer_addr)
134 208 : os_memcpy(data->peer_dev.mac_addr, cfg->peer_addr, ETH_ALEN);
135 422 : if (cfg->p2p_dev_addr)
136 106 : os_memcpy(data->p2p_dev_addr, cfg->p2p_dev_addr, ETH_ALEN);
137 :
138 422 : data->use_psk_key = cfg->use_psk_key;
139 422 : data->pbc_in_m1 = cfg->pbc_in_m1;
140 :
141 422 : if (cfg->peer_pubkey_hash) {
142 17 : os_memcpy(data->peer_pubkey_hash, cfg->peer_pubkey_hash,
143 : WPS_OOB_PUBKEY_HASH_LEN);
144 17 : data->peer_pubkey_hash_set = 1;
145 : }
146 :
147 422 : return data;
148 : }
149 :
150 :
151 : /**
152 : * wps_deinit - Deinitialize WPS Registration protocol data
153 : * @data: WPS Registration protocol data from wps_init()
154 : */
155 422 : void wps_deinit(struct wps_data *data)
156 : {
157 : #ifdef CONFIG_WPS_NFC
158 422 : if (data->registrar && data->nfc_pw_token)
159 27 : wps_registrar_remove_nfc_pw_token(data->wps->registrar,
160 : data->nfc_pw_token);
161 : #endif /* CONFIG_WPS_NFC */
162 :
163 422 : if (data->wps_pin_revealed) {
164 4 : wpa_printf(MSG_DEBUG, "WPS: Full PIN information revealed and "
165 : "negotiation failed");
166 4 : if (data->registrar)
167 4 : wps_registrar_invalidate_pin(data->wps->registrar,
168 4 : data->uuid_e);
169 418 : } else if (data->registrar)
170 206 : wps_registrar_unlock_pin(data->wps->registrar, data->uuid_e);
171 :
172 422 : wpabuf_free(data->dh_privkey);
173 422 : wpabuf_free(data->dh_pubkey_e);
174 422 : wpabuf_free(data->dh_pubkey_r);
175 422 : wpabuf_free(data->last_msg);
176 422 : os_free(data->dev_password);
177 422 : os_free(data->alt_dev_password);
178 422 : os_free(data->new_psk);
179 422 : wps_device_data_free(&data->peer_dev);
180 422 : os_free(data->new_ap_settings);
181 422 : dh5_free(data->dh_ctx);
182 422 : os_free(data);
183 422 : }
184 :
185 :
186 : /**
187 : * wps_process_msg - Process a WPS message
188 : * @wps: WPS Registration protocol data from wps_init()
189 : * @op_code: Message OP Code
190 : * @msg: Message data
191 : * Returns: Processing result
192 : *
193 : * This function is used to process WPS messages with OP Codes WSC_ACK,
194 : * WSC_NACK, WSC_MSG, and WSC_Done. The caller (e.g., EAP server/peer) is
195 : * responsible for reassembling the messages before calling this function.
196 : * Response to this message is built by calling wps_get_msg().
197 : */
198 1637 : enum wps_process_res wps_process_msg(struct wps_data *wps,
199 : enum wsc_op_code op_code,
200 : const struct wpabuf *msg)
201 : {
202 1637 : if (wps->registrar)
203 926 : return wps_registrar_process_msg(wps, op_code, msg);
204 : else
205 711 : return wps_enrollee_process_msg(wps, op_code, msg);
206 : }
207 :
208 :
209 : /**
210 : * wps_get_msg - Build a WPS message
211 : * @wps: WPS Registration protocol data from wps_init()
212 : * @op_code: Buffer for returning message OP Code
213 : * Returns: The generated WPS message or %NULL on failure
214 : *
215 : * This function is used to build a response to a message processed by calling
216 : * wps_process_msg(). The caller is responsible for freeing the buffer.
217 : */
218 1619 : struct wpabuf * wps_get_msg(struct wps_data *wps, enum wsc_op_code *op_code)
219 : {
220 1619 : if (wps->registrar)
221 735 : return wps_registrar_get_msg(wps, op_code);
222 : else
223 884 : return wps_enrollee_get_msg(wps, op_code);
224 : }
225 :
226 :
227 : /**
228 : * wps_is_selected_pbc_registrar - Check whether WPS IE indicates active PBC
229 : * @msg: WPS IE contents from Beacon or Probe Response frame
230 : * Returns: 1 if PBC Registrar is active, 0 if not
231 : */
232 550 : int wps_is_selected_pbc_registrar(const struct wpabuf *msg)
233 : {
234 : struct wps_parse_attr attr;
235 :
236 : /*
237 : * In theory, this could also verify that attr.sel_reg_config_methods
238 : * includes WPS_CONFIG_PUSHBUTTON, but some deployed AP implementations
239 : * do not set Selected Registrar Config Methods attribute properly, so
240 : * it is safer to just use Device Password ID here.
241 : */
242 :
243 1100 : if (wps_parse_msg(msg, &attr) < 0 ||
244 1162 : !attr.selected_registrar || *attr.selected_registrar == 0 ||
245 612 : !attr.dev_password_id ||
246 306 : WPA_GET_BE16(attr.dev_password_id) != DEV_PW_PUSHBUTTON)
247 432 : return 0;
248 :
249 : #ifdef CONFIG_WPS_STRICT
250 : if (!attr.sel_reg_config_methods ||
251 : !(WPA_GET_BE16(attr.sel_reg_config_methods) &
252 : WPS_CONFIG_PUSHBUTTON))
253 : return 0;
254 : #endif /* CONFIG_WPS_STRICT */
255 :
256 118 : return 1;
257 : }
258 :
259 :
260 204 : static int is_selected_pin_registrar(struct wps_parse_attr *attr)
261 : {
262 : /*
263 : * In theory, this could also verify that attr.sel_reg_config_methods
264 : * includes WPS_CONFIG_LABEL, WPS_CONFIG_DISPLAY, or WPS_CONFIG_KEYPAD,
265 : * but some deployed AP implementations do not set Selected Registrar
266 : * Config Methods attribute properly, so it is safer to just use
267 : * Device Password ID here.
268 : */
269 :
270 204 : if (!attr->selected_registrar || *attr->selected_registrar == 0)
271 193 : return 0;
272 :
273 22 : if (attr->dev_password_id != NULL &&
274 11 : WPA_GET_BE16(attr->dev_password_id) == DEV_PW_PUSHBUTTON)
275 0 : return 0;
276 :
277 : #ifdef CONFIG_WPS_STRICT
278 : if (!attr->sel_reg_config_methods ||
279 : !(WPA_GET_BE16(attr->sel_reg_config_methods) &
280 : (WPS_CONFIG_LABEL | WPS_CONFIG_DISPLAY | WPS_CONFIG_KEYPAD)))
281 : return 0;
282 : #endif /* CONFIG_WPS_STRICT */
283 :
284 11 : return 1;
285 : }
286 :
287 :
288 : /**
289 : * wps_is_selected_pin_registrar - Check whether WPS IE indicates active PIN
290 : * @msg: WPS IE contents from Beacon or Probe Response frame
291 : * Returns: 1 if PIN Registrar is active, 0 if not
292 : */
293 200 : int wps_is_selected_pin_registrar(const struct wpabuf *msg)
294 : {
295 : struct wps_parse_attr attr;
296 :
297 200 : if (wps_parse_msg(msg, &attr) < 0)
298 0 : return 0;
299 :
300 200 : return is_selected_pin_registrar(&attr);
301 : }
302 :
303 :
304 : /**
305 : * wps_is_addr_authorized - Check whether WPS IE authorizes MAC address
306 : * @msg: WPS IE contents from Beacon or Probe Response frame
307 : * @addr: MAC address to search for
308 : * @ver1_compat: Whether to use version 1 compatibility mode
309 : * Returns: 2 if the specified address is explicit authorized, 1 if address is
310 : * authorized (broadcast), 0 if not
311 : */
312 941 : int wps_is_addr_authorized(const struct wpabuf *msg, const u8 *addr,
313 : int ver1_compat)
314 : {
315 : struct wps_parse_attr attr;
316 : unsigned int i;
317 : const u8 *pos;
318 941 : const u8 bcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
319 :
320 941 : if (wps_parse_msg(msg, &attr) < 0)
321 0 : return 0;
322 :
323 941 : if (!attr.version2 && ver1_compat) {
324 : /*
325 : * Version 1.0 AP - AuthorizedMACs not used, so revert back to
326 : * old mechanism of using SelectedRegistrar.
327 : */
328 4 : return is_selected_pin_registrar(&attr);
329 : }
330 :
331 937 : if (!attr.authorized_macs)
332 425 : return 0;
333 :
334 512 : pos = attr.authorized_macs;
335 523 : for (i = 0; i < attr.authorized_macs_len / ETH_ALEN; i++) {
336 512 : if (os_memcmp(pos, addr, ETH_ALEN) == 0)
337 201 : return 2;
338 311 : if (os_memcmp(pos, bcast, ETH_ALEN) == 0)
339 300 : return 1;
340 11 : pos += ETH_ALEN;
341 : }
342 :
343 11 : return 0;
344 : }
345 :
346 :
347 : /**
348 : * wps_ap_priority_compar - Prioritize WPS IE from two APs
349 : * @wps_a: WPS IE contents from Beacon or Probe Response frame
350 : * @wps_b: WPS IE contents from Beacon or Probe Response frame
351 : * Returns: 1 if wps_b is considered more likely selection for WPS
352 : * provisioning, -1 if wps_a is considered more like, or 0 if no preference
353 : */
354 51 : int wps_ap_priority_compar(const struct wpabuf *wps_a,
355 : const struct wpabuf *wps_b)
356 : {
357 : struct wps_parse_attr attr_a, attr_b;
358 : int sel_a, sel_b;
359 :
360 51 : if (wps_a == NULL || wps_parse_msg(wps_a, &attr_a) < 0)
361 0 : return 1;
362 51 : if (wps_b == NULL || wps_parse_msg(wps_b, &attr_b) < 0)
363 0 : return -1;
364 :
365 51 : sel_a = attr_a.selected_registrar && *attr_a.selected_registrar != 0;
366 51 : sel_b = attr_b.selected_registrar && *attr_b.selected_registrar != 0;
367 :
368 51 : if (sel_a && !sel_b)
369 7 : return -1;
370 44 : if (!sel_a && sel_b)
371 19 : return 1;
372 :
373 25 : return 0;
374 : }
375 :
376 :
377 : /**
378 : * wps_get_uuid_e - Get UUID-E from WPS IE
379 : * @msg: WPS IE contents from Beacon or Probe Response frame
380 : * Returns: Pointer to UUID-E or %NULL if not included
381 : *
382 : * The returned pointer is to the msg contents and it remains valid only as
383 : * long as the msg buffer is valid.
384 : */
385 37 : const u8 * wps_get_uuid_e(const struct wpabuf *msg)
386 : {
387 : struct wps_parse_attr attr;
388 :
389 37 : if (wps_parse_msg(msg, &attr) < 0)
390 0 : return NULL;
391 37 : return attr.uuid_e;
392 : }
393 :
394 :
395 : /**
396 : * wps_is_20 - Check whether WPS attributes claim support for WPS 2.0
397 : */
398 200 : int wps_is_20(const struct wpabuf *msg)
399 : {
400 : struct wps_parse_attr attr;
401 :
402 200 : if (msg == NULL || wps_parse_msg(msg, &attr) < 0)
403 0 : return 0;
404 200 : return attr.version2 != NULL;
405 : }
406 :
407 :
408 : /**
409 : * wps_build_assoc_req_ie - Build WPS IE for (Re)Association Request
410 : * @req_type: Value for Request Type attribute
411 : * Returns: WPS IE or %NULL on failure
412 : *
413 : * The caller is responsible for freeing the buffer.
414 : */
415 200 : struct wpabuf * wps_build_assoc_req_ie(enum wps_request_type req_type)
416 : {
417 : struct wpabuf *ie;
418 : u8 *len;
419 :
420 200 : wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for (Re)Association "
421 : "Request");
422 200 : ie = wpabuf_alloc(100);
423 200 : if (ie == NULL)
424 0 : return NULL;
425 :
426 200 : wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
427 200 : len = wpabuf_put(ie, 1);
428 200 : wpabuf_put_be32(ie, WPS_DEV_OUI_WFA);
429 :
430 400 : if (wps_build_version(ie) ||
431 400 : wps_build_req_type(ie, req_type) ||
432 200 : wps_build_wfa_ext(ie, 0, NULL, 0)) {
433 0 : wpabuf_free(ie);
434 0 : return NULL;
435 : }
436 :
437 200 : *len = wpabuf_len(ie) - 2;
438 :
439 200 : return ie;
440 : }
441 :
442 :
443 : /**
444 : * wps_build_assoc_resp_ie - Build WPS IE for (Re)Association Response
445 : * Returns: WPS IE or %NULL on failure
446 : *
447 : * The caller is responsible for freeing the buffer.
448 : */
449 1325 : struct wpabuf * wps_build_assoc_resp_ie(void)
450 : {
451 : struct wpabuf *ie;
452 : u8 *len;
453 :
454 1325 : wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for (Re)Association "
455 : "Response");
456 1325 : ie = wpabuf_alloc(100);
457 1325 : if (ie == NULL)
458 0 : return NULL;
459 :
460 1325 : wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
461 1325 : len = wpabuf_put(ie, 1);
462 1325 : wpabuf_put_be32(ie, WPS_DEV_OUI_WFA);
463 :
464 2650 : if (wps_build_version(ie) ||
465 2650 : wps_build_resp_type(ie, WPS_RESP_AP) ||
466 1325 : wps_build_wfa_ext(ie, 0, NULL, 0)) {
467 0 : wpabuf_free(ie);
468 0 : return NULL;
469 : }
470 :
471 1325 : *len = wpabuf_len(ie) - 2;
472 :
473 1325 : return ie;
474 : }
475 :
476 :
477 : /**
478 : * wps_build_probe_req_ie - Build WPS IE for Probe Request
479 : * @pw_id: Password ID (DEV_PW_PUSHBUTTON for active PBC and DEV_PW_DEFAULT for
480 : * most other use cases)
481 : * @dev: Device attributes
482 : * @uuid: Own UUID
483 : * @req_type: Value for Request Type attribute
484 : * @num_req_dev_types: Number of requested device types
485 : * @req_dev_types: Requested device types (8 * num_req_dev_types octets) or
486 : * %NULL if none
487 : * Returns: WPS IE or %NULL on failure
488 : *
489 : * The caller is responsible for freeing the buffer.
490 : */
491 1837 : struct wpabuf * wps_build_probe_req_ie(u16 pw_id, struct wps_device_data *dev,
492 : const u8 *uuid,
493 : enum wps_request_type req_type,
494 : unsigned int num_req_dev_types,
495 : const u8 *req_dev_types)
496 : {
497 : struct wpabuf *ie;
498 :
499 1837 : wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for Probe Request");
500 :
501 1837 : ie = wpabuf_alloc(500);
502 1837 : if (ie == NULL)
503 0 : return NULL;
504 :
505 3674 : if (wps_build_version(ie) ||
506 3674 : wps_build_req_type(ie, req_type) ||
507 3674 : wps_build_config_methods(ie, dev->config_methods) ||
508 3674 : wps_build_uuid_e(ie, uuid) ||
509 3674 : wps_build_primary_dev_type(dev, ie) ||
510 3674 : wps_build_rf_bands(dev, ie, 0) ||
511 3674 : wps_build_assoc_state(NULL, ie) ||
512 3674 : wps_build_config_error(ie, WPS_CFG_NO_ERROR) ||
513 3674 : wps_build_dev_password_id(ie, pw_id) ||
514 3674 : wps_build_manufacturer(dev, ie) ||
515 3674 : wps_build_model_name(dev, ie) ||
516 3674 : wps_build_model_number(dev, ie) ||
517 3674 : wps_build_dev_name(dev, ie) ||
518 3674 : wps_build_wfa_ext(ie, req_type == WPS_REQ_ENROLLEE, NULL, 0) ||
519 1837 : wps_build_req_dev_type(dev, ie, num_req_dev_types, req_dev_types)
520 1837 : ||
521 1837 : wps_build_secondary_dev_type(dev, ie)
522 : ) {
523 0 : wpabuf_free(ie);
524 0 : return NULL;
525 : }
526 :
527 1837 : return wps_ie_encapsulate(ie);
528 : }
529 :
530 :
531 201 : void wps_free_pending_msgs(struct upnp_pending_message *msgs)
532 : {
533 : struct upnp_pending_message *p, *prev;
534 201 : p = msgs;
535 402 : while (p) {
536 0 : prev = p;
537 0 : p = p->next;
538 0 : wpabuf_free(prev->msg);
539 0 : os_free(prev);
540 : }
541 201 : }
542 :
543 :
544 33 : int wps_attr_text(struct wpabuf *data, char *buf, char *end)
545 : {
546 : struct wps_parse_attr attr;
547 33 : char *pos = buf;
548 : int ret;
549 :
550 33 : if (wps_parse_msg(data, &attr) < 0)
551 0 : return -1;
552 :
553 33 : if (attr.wps_state) {
554 33 : if (*attr.wps_state == WPS_STATE_NOT_CONFIGURED)
555 9 : ret = os_snprintf(pos, end - pos,
556 : "wps_state=unconfigured\n");
557 24 : else if (*attr.wps_state == WPS_STATE_CONFIGURED)
558 24 : ret = os_snprintf(pos, end - pos,
559 : "wps_state=configured\n");
560 : else
561 0 : ret = 0;
562 33 : if (ret < 0 || ret >= end - pos)
563 0 : return pos - buf;
564 33 : pos += ret;
565 : }
566 :
567 33 : if (attr.ap_setup_locked && *attr.ap_setup_locked) {
568 0 : ret = os_snprintf(pos, end - pos,
569 : "wps_ap_setup_locked=1\n");
570 0 : if (ret < 0 || ret >= end - pos)
571 0 : return pos - buf;
572 0 : pos += ret;
573 : }
574 :
575 33 : if (attr.selected_registrar && *attr.selected_registrar) {
576 18 : ret = os_snprintf(pos, end - pos,
577 : "wps_selected_registrar=1\n");
578 18 : if (ret < 0 || ret >= end - pos)
579 0 : return pos - buf;
580 18 : pos += ret;
581 : }
582 :
583 33 : if (attr.dev_password_id) {
584 18 : ret = os_snprintf(pos, end - pos,
585 : "wps_device_password_id=%u\n",
586 18 : WPA_GET_BE16(attr.dev_password_id));
587 18 : if (ret < 0 || ret >= end - pos)
588 0 : return pos - buf;
589 18 : pos += ret;
590 : }
591 :
592 33 : if (attr.sel_reg_config_methods) {
593 18 : ret = os_snprintf(pos, end - pos,
594 : "wps_selected_registrar_config_methods="
595 : "0x%04x\n",
596 18 : WPA_GET_BE16(attr.sel_reg_config_methods));
597 18 : if (ret < 0 || ret >= end - pos)
598 0 : return pos - buf;
599 18 : pos += ret;
600 : }
601 :
602 33 : if (attr.primary_dev_type) {
603 : char devtype[WPS_DEV_TYPE_BUFSIZE];
604 33 : ret = os_snprintf(pos, end - pos,
605 : "wps_primary_device_type=%s\n",
606 : wps_dev_type_bin2str(attr.primary_dev_type,
607 : devtype,
608 : sizeof(devtype)));
609 33 : if (ret < 0 || ret >= end - pos)
610 0 : return pos - buf;
611 33 : pos += ret;
612 : }
613 :
614 33 : if (attr.dev_name) {
615 33 : char *str = os_malloc(attr.dev_name_len + 1);
616 : size_t i;
617 33 : if (str == NULL)
618 0 : return pos - buf;
619 155 : for (i = 0; i < attr.dev_name_len; i++) {
620 122 : if (attr.dev_name[i] < 32)
621 0 : str[i] = '_';
622 : else
623 122 : str[i] = attr.dev_name[i];
624 : }
625 33 : str[i] = '\0';
626 33 : ret = os_snprintf(pos, end - pos, "wps_device_name=%s\n", str);
627 33 : os_free(str);
628 33 : if (ret < 0 || ret >= end - pos)
629 0 : return pos - buf;
630 33 : pos += ret;
631 : }
632 :
633 33 : if (attr.config_methods) {
634 33 : ret = os_snprintf(pos, end - pos,
635 : "wps_config_methods=0x%04x\n",
636 33 : WPA_GET_BE16(attr.config_methods));
637 33 : if (ret < 0 || ret >= end - pos)
638 0 : return pos - buf;
639 33 : pos += ret;
640 : }
641 :
642 33 : return pos - buf;
643 : }
644 :
645 :
646 3 : const char * wps_ei_str(enum wps_error_indication ei)
647 : {
648 3 : switch (ei) {
649 : case WPS_EI_NO_ERROR:
650 0 : return "No Error";
651 : case WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED:
652 0 : return "TKIP Only Prohibited";
653 : case WPS_EI_SECURITY_WEP_PROHIBITED:
654 3 : return "WEP Prohibited";
655 : case WPS_EI_AUTH_FAILURE:
656 0 : return "Authentication Failure";
657 : default:
658 0 : return "Unknown";
659 : }
660 : }
|
