1 /*
2 * Wi-Fi Protected Setup - device attributes
3 * Copyright (c) 2008, 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 "wps_i.h"
13 #include "wps_dev_attr.h"
14
15
wps_build_manufacturer(struct wps_device_data * dev,struct wpabuf * msg)16 int wps_build_manufacturer(struct wps_device_data *dev, struct wpabuf *msg)
17 {
18 size_t len;
19 wpa_printf(MSG_DEBUG, "WPS: * Manufacturer");
20 wpabuf_put_be16(msg, ATTR_MANUFACTURER);
21 len = dev->manufacturer ? os_strlen(dev->manufacturer) : 0;
22 #ifndef CONFIG_WPS_STRICT
23 if (len == 0) {
24 /*
25 * Some deployed WPS implementations fail to parse zero-length
26 * attributes. As a workaround, send a space character if the
27 * device attribute string is empty.
28 */
29 wpabuf_put_be16(msg, 1);
30 wpabuf_put_u8(msg, ' ');
31 return 0;
32 }
33 #endif /* CONFIG_WPS_STRICT */
34 wpabuf_put_be16(msg, len);
35 wpabuf_put_data(msg, dev->manufacturer, len);
36 return 0;
37 }
38
39
wps_build_model_name(struct wps_device_data * dev,struct wpabuf * msg)40 int wps_build_model_name(struct wps_device_data *dev, struct wpabuf *msg)
41 {
42 size_t len;
43 wpa_printf(MSG_DEBUG, "WPS: * Model Name");
44 wpabuf_put_be16(msg, ATTR_MODEL_NAME);
45 len = dev->model_name ? os_strlen(dev->model_name) : 0;
46 #ifndef CONFIG_WPS_STRICT
47 if (len == 0) {
48 /*
49 * Some deployed WPS implementations fail to parse zero-length
50 * attributes. As a workaround, send a space character if the
51 * device attribute string is empty.
52 */
53 wpabuf_put_be16(msg, 1);
54 wpabuf_put_u8(msg, ' ');
55 return 0;
56 }
57 #endif /* CONFIG_WPS_STRICT */
58 wpabuf_put_be16(msg, len);
59 wpabuf_put_data(msg, dev->model_name, len);
60 return 0;
61 }
62
63
wps_build_model_number(struct wps_device_data * dev,struct wpabuf * msg)64 int wps_build_model_number(struct wps_device_data *dev, struct wpabuf *msg)
65 {
66 size_t len;
67 wpa_printf(MSG_DEBUG, "WPS: * Model Number");
68 wpabuf_put_be16(msg, ATTR_MODEL_NUMBER);
69 len = dev->model_number ? os_strlen(dev->model_number) : 0;
70 #ifndef CONFIG_WPS_STRICT
71 if (len == 0) {
72 /*
73 * Some deployed WPS implementations fail to parse zero-length
74 * attributes. As a workaround, send a space character if the
75 * device attribute string is empty.
76 */
77 wpabuf_put_be16(msg, 1);
78 wpabuf_put_u8(msg, ' ');
79 return 0;
80 }
81 #endif /* CONFIG_WPS_STRICT */
82 wpabuf_put_be16(msg, len);
83 wpabuf_put_data(msg, dev->model_number, len);
84 return 0;
85 }
86
87
wps_build_serial_number(struct wps_device_data * dev,struct wpabuf * msg)88 int wps_build_serial_number(struct wps_device_data *dev, struct wpabuf *msg)
89 {
90 size_t len;
91 wpa_printf(MSG_DEBUG, "WPS: * Serial Number");
92 wpabuf_put_be16(msg, ATTR_SERIAL_NUMBER);
93 len = dev->serial_number ? os_strlen(dev->serial_number) : 0;
94 #ifndef CONFIG_WPS_STRICT
95 if (len == 0) {
96 /*
97 * Some deployed WPS implementations fail to parse zero-length
98 * attributes. As a workaround, send a space character if the
99 * device attribute string is empty.
100 */
101 wpabuf_put_be16(msg, 1);
102 wpabuf_put_u8(msg, ' ');
103 return 0;
104 }
105 #endif /* CONFIG_WPS_STRICT */
106 wpabuf_put_be16(msg, len);
107 wpabuf_put_data(msg, dev->serial_number, len);
108 return 0;
109 }
110
111
wps_build_primary_dev_type(struct wps_device_data * dev,struct wpabuf * msg)112 int wps_build_primary_dev_type(struct wps_device_data *dev, struct wpabuf *msg)
113 {
114 wpa_printf(MSG_DEBUG, "WPS: * Primary Device Type");
115 wpabuf_put_be16(msg, ATTR_PRIMARY_DEV_TYPE);
116 wpabuf_put_be16(msg, WPS_DEV_TYPE_LEN);
117 wpabuf_put_data(msg, dev->pri_dev_type, WPS_DEV_TYPE_LEN);
118 return 0;
119 }
120
121
wps_build_secondary_dev_type(struct wps_device_data * dev,struct wpabuf * msg)122 int wps_build_secondary_dev_type(struct wps_device_data *dev,
123 struct wpabuf *msg)
124 {
125 if (!dev->num_sec_dev_types)
126 return 0;
127
128 wpa_printf(MSG_DEBUG, "WPS: * Secondary Device Type");
129 wpabuf_put_be16(msg, ATTR_SECONDARY_DEV_TYPE_LIST);
130 wpabuf_put_be16(msg, WPS_DEV_TYPE_LEN * dev->num_sec_dev_types);
131 wpabuf_put_data(msg, dev->sec_dev_type,
132 WPS_DEV_TYPE_LEN * dev->num_sec_dev_types);
133
134 return 0;
135 }
136
137
wps_build_req_dev_type(struct wps_device_data * dev,struct wpabuf * msg,unsigned int num_req_dev_types,const u8 * req_dev_types)138 int wps_build_req_dev_type(struct wps_device_data *dev, struct wpabuf *msg,
139 unsigned int num_req_dev_types,
140 const u8 *req_dev_types)
141 {
142 unsigned int i;
143
144 for (i = 0; i < num_req_dev_types; i++) {
145 wpa_hexdump(MSG_DEBUG, "WPS: * Requested Device Type",
146 req_dev_types + i * WPS_DEV_TYPE_LEN,
147 WPS_DEV_TYPE_LEN);
148 wpabuf_put_be16(msg, ATTR_REQUESTED_DEV_TYPE);
149 wpabuf_put_be16(msg, WPS_DEV_TYPE_LEN);
150 wpabuf_put_data(msg, req_dev_types + i * WPS_DEV_TYPE_LEN,
151 WPS_DEV_TYPE_LEN);
152 }
153
154 return 0;
155 }
156
157
wps_build_dev_name(struct wps_device_data * dev,struct wpabuf * msg)158 int wps_build_dev_name(struct wps_device_data *dev, struct wpabuf *msg)
159 {
160 size_t len;
161 wpa_printf(MSG_DEBUG, "WPS: * Device Name");
162 wpabuf_put_be16(msg, ATTR_DEV_NAME);
163 len = dev->device_name ? os_strlen(dev->device_name) : 0;
164 #ifndef CONFIG_WPS_STRICT
165 if (len == 0) {
166 /*
167 * Some deployed WPS implementations fail to parse zero-length
168 * attributes. As a workaround, send a space character if the
169 * device attribute string is empty.
170 */
171 wpabuf_put_be16(msg, 1);
172 wpabuf_put_u8(msg, ' ');
173 return 0;
174 }
175 #endif /* CONFIG_WPS_STRICT */
176 wpabuf_put_be16(msg, len);
177 wpabuf_put_data(msg, dev->device_name, len);
178 return 0;
179 }
180
181
wps_build_device_attrs(struct wps_device_data * dev,struct wpabuf * msg)182 int wps_build_device_attrs(struct wps_device_data *dev, struct wpabuf *msg)
183 {
184 if (wps_build_manufacturer(dev, msg) ||
185 wps_build_model_name(dev, msg) ||
186 wps_build_model_number(dev, msg) ||
187 wps_build_serial_number(dev, msg) ||
188 wps_build_primary_dev_type(dev, msg) ||
189 wps_build_dev_name(dev, msg))
190 return -1;
191 return 0;
192 }
193
194
wps_build_os_version(struct wps_device_data * dev,struct wpabuf * msg)195 int wps_build_os_version(struct wps_device_data *dev, struct wpabuf *msg)
196 {
197 wpa_printf(MSG_DEBUG, "WPS: * OS Version");
198 wpabuf_put_be16(msg, ATTR_OS_VERSION);
199 wpabuf_put_be16(msg, 4);
200 wpabuf_put_be32(msg, 0x80000000 | dev->os_version);
201 return 0;
202 }
203
204
wps_build_vendor_ext_m1(struct wps_device_data * dev,struct wpabuf * msg)205 int wps_build_vendor_ext_m1(struct wps_device_data *dev, struct wpabuf *msg)
206 {
207 if (dev->vendor_ext_m1 != NULL) {
208 wpa_hexdump(MSG_DEBUG, "WPS: * Vendor Extension M1",
209 wpabuf_head_u8(dev->vendor_ext_m1),
210 wpabuf_len(dev->vendor_ext_m1));
211 wpabuf_put_be16(msg, ATTR_VENDOR_EXT);
212 wpabuf_put_be16(msg, wpabuf_len(dev->vendor_ext_m1));
213 wpabuf_put_buf(msg, dev->vendor_ext_m1);
214 }
215 return 0;
216 }
217
218
wps_build_rf_bands(struct wps_device_data * dev,struct wpabuf * msg,u8 rf_band)219 int wps_build_rf_bands(struct wps_device_data *dev, struct wpabuf *msg,
220 u8 rf_band)
221 {
222 return wps_build_rf_bands_attr(msg, rf_band ? rf_band : dev->rf_bands);
223 }
224
225
wps_build_vendor_ext(struct wps_device_data * dev,struct wpabuf * msg)226 int wps_build_vendor_ext(struct wps_device_data *dev, struct wpabuf *msg)
227 {
228 int i;
229
230 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
231 if (dev->vendor_ext[i] == NULL)
232 continue;
233 wpa_hexdump(MSG_DEBUG, "WPS: * Vendor Extension",
234 wpabuf_head_u8(dev->vendor_ext[i]),
235 wpabuf_len(dev->vendor_ext[i]));
236 wpabuf_put_be16(msg, ATTR_VENDOR_EXT);
237 wpabuf_put_be16(msg, wpabuf_len(dev->vendor_ext[i]));
238 wpabuf_put_buf(msg, dev->vendor_ext[i]);
239 }
240
241 return 0;
242 }
243
244
wps_build_application_ext(struct wps_device_data * dev,struct wpabuf * msg)245 int wps_build_application_ext(struct wps_device_data *dev, struct wpabuf *msg)
246 {
247 if (!dev->application_ext)
248 return 0;
249
250 wpa_hexdump_buf(MSG_DEBUG, "WPS: * Application Extension",
251 dev->application_ext);
252 wpabuf_put_be16(msg, ATTR_APPLICATION_EXT);
253 wpabuf_put_be16(msg, wpabuf_len(dev->application_ext));
254 wpabuf_put_buf(msg, dev->application_ext);
255
256 return 0;
257 }
258
259
wps_process_manufacturer(struct wps_device_data * dev,const u8 * str,size_t str_len)260 static int wps_process_manufacturer(struct wps_device_data *dev, const u8 *str,
261 size_t str_len)
262 {
263 if (str == NULL) {
264 wpa_printf(MSG_DEBUG, "WPS: No Manufacturer received");
265 return -1;
266 }
267
268 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Manufacturer", str, str_len);
269
270 os_free(dev->manufacturer);
271 dev->manufacturer = dup_binstr(str, str_len);
272 if (dev->manufacturer == NULL)
273 return -1;
274
275 return 0;
276 }
277
278
wps_process_model_name(struct wps_device_data * dev,const u8 * str,size_t str_len)279 static int wps_process_model_name(struct wps_device_data *dev, const u8 *str,
280 size_t str_len)
281 {
282 if (str == NULL) {
283 wpa_printf(MSG_DEBUG, "WPS: No Model Name received");
284 return -1;
285 }
286
287 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Model Name", str, str_len);
288
289 os_free(dev->model_name);
290 dev->model_name = dup_binstr(str, str_len);
291 if (dev->model_name == NULL)
292 return -1;
293
294 return 0;
295 }
296
297
wps_process_model_number(struct wps_device_data * dev,const u8 * str,size_t str_len)298 static int wps_process_model_number(struct wps_device_data *dev, const u8 *str,
299 size_t str_len)
300 {
301 if (str == NULL) {
302 wpa_printf(MSG_DEBUG, "WPS: No Model Number received");
303 return -1;
304 }
305
306 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Model Number", str, str_len);
307
308 os_free(dev->model_number);
309 dev->model_number = dup_binstr(str, str_len);
310 if (dev->model_number == NULL)
311 return -1;
312
313 return 0;
314 }
315
316
wps_process_serial_number(struct wps_device_data * dev,const u8 * str,size_t str_len)317 static int wps_process_serial_number(struct wps_device_data *dev,
318 const u8 *str, size_t str_len)
319 {
320 if (str == NULL) {
321 wpa_printf(MSG_DEBUG, "WPS: No Serial Number received");
322 return -1;
323 }
324
325 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Serial Number", str, str_len);
326
327 os_free(dev->serial_number);
328 dev->serial_number = dup_binstr(str, str_len);
329 if (dev->serial_number == NULL)
330 return -1;
331
332 return 0;
333 }
334
335
wps_process_dev_name(struct wps_device_data * dev,const u8 * str,size_t str_len)336 static int wps_process_dev_name(struct wps_device_data *dev, const u8 *str,
337 size_t str_len)
338 {
339 if (str == NULL) {
340 wpa_printf(MSG_DEBUG, "WPS: No Device Name received");
341 return -1;
342 }
343
344 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Device Name", str, str_len);
345
346 os_free(dev->device_name);
347 dev->device_name = dup_binstr(str, str_len);
348 if (dev->device_name == NULL)
349 return -1;
350
351 return 0;
352 }
353
354
wps_process_primary_dev_type(struct wps_device_data * dev,const u8 * dev_type)355 static int wps_process_primary_dev_type(struct wps_device_data *dev,
356 const u8 *dev_type)
357 {
358 #ifndef CONFIG_NO_STDOUT_DEBUG
359 char devtype[WPS_DEV_TYPE_BUFSIZE];
360 #endif /* CONFIG_NO_STDOUT_DEBUG */
361
362 if (dev_type == NULL) {
363 wpa_printf(MSG_DEBUG, "WPS: No Primary Device Type received");
364 return -1;
365 }
366
367 os_memcpy(dev->pri_dev_type, dev_type, WPS_DEV_TYPE_LEN);
368 wpa_printf(MSG_DEBUG, "WPS: Primary Device Type: %s",
369 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
370 sizeof(devtype)));
371
372 return 0;
373 }
374
375
wps_process_device_attrs(struct wps_device_data * dev,struct wps_parse_attr * attr)376 int wps_process_device_attrs(struct wps_device_data *dev,
377 struct wps_parse_attr *attr)
378 {
379 if (wps_process_manufacturer(dev, attr->manufacturer,
380 attr->manufacturer_len) ||
381 wps_process_model_name(dev, attr->model_name,
382 attr->model_name_len) ||
383 wps_process_model_number(dev, attr->model_number,
384 attr->model_number_len) ||
385 wps_process_serial_number(dev, attr->serial_number,
386 attr->serial_number_len) ||
387 wps_process_primary_dev_type(dev, attr->primary_dev_type) ||
388 wps_process_dev_name(dev, attr->dev_name, attr->dev_name_len))
389 return -1;
390 return 0;
391 }
392
393
wps_process_os_version(struct wps_device_data * dev,const u8 * ver)394 int wps_process_os_version(struct wps_device_data *dev, const u8 *ver)
395 {
396 if (ver == NULL) {
397 wpa_printf(MSG_DEBUG, "WPS: No OS Version received");
398 return -1;
399 }
400
401 dev->os_version = WPA_GET_BE32(ver);
402 wpa_printf(MSG_DEBUG, "WPS: OS Version %08x", dev->os_version);
403
404 return 0;
405 }
406
407
wps_process_vendor_ext_m1(struct wps_device_data * dev,const u8 ext)408 void wps_process_vendor_ext_m1(struct wps_device_data *dev, const u8 ext)
409 {
410 dev->multi_ap_ext = ext;
411 wpa_printf(MSG_DEBUG, "WPS: Multi-AP extension value %02x",
412 dev->multi_ap_ext);
413 }
414
415
wps_process_rf_bands(struct wps_device_data * dev,const u8 * bands)416 int wps_process_rf_bands(struct wps_device_data *dev, const u8 *bands)
417 {
418 if (bands == NULL) {
419 wpa_printf(MSG_DEBUG, "WPS: No RF Bands received");
420 return -1;
421 }
422
423 dev->rf_bands = *bands;
424 wpa_printf(MSG_DEBUG, "WPS: Enrollee RF Bands 0x%x", dev->rf_bands);
425
426 return 0;
427 }
428
429
wps_device_data_free(struct wps_device_data * dev)430 void wps_device_data_free(struct wps_device_data *dev)
431 {
432 os_free(dev->device_name);
433 dev->device_name = NULL;
434 os_free(dev->manufacturer);
435 dev->manufacturer = NULL;
436 os_free(dev->model_name);
437 dev->model_name = NULL;
438 os_free(dev->model_number);
439 dev->model_number = NULL;
440 os_free(dev->serial_number);
441 dev->serial_number = NULL;
442 wpabuf_free(dev->application_ext);
443 dev->application_ext = NULL;
444 }
445
