1 /*
2 * WPA Supplicant / dbus-based control interface
3 * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15 #include "includes.h"
16
17 #include "common.h"
18 #include "config.h"
19 #include "wpa_supplicant_i.h"
20 #include "ctrl_iface_dbus.h"
21 #include "ctrl_iface_dbus_handlers.h"
22 #include "eap_peer/eap_methods.h"
23 #include "dbus_dict_helpers.h"
24 #include "ieee802_11_defs.h"
25 #include "wpas_glue.h"
26 #include "eapol_supp/eapol_supp_sm.h"
27 #include "wpa.h"
28
29 extern int wpa_debug_level;
30 extern int wpa_debug_show_keys;
31 extern int wpa_debug_timestamp;
32
33 /**
34 * wpas_dbus_new_invalid_opts_error - Return a new invalid options error message
35 * @message: Pointer to incoming dbus message this error refers to
36 * Returns: a dbus error message
37 *
38 * Convenience function to create and return an invalid options error
39 */
wpas_dbus_new_invalid_opts_error(DBusMessage * message,const char * arg)40 static DBusMessage * wpas_dbus_new_invalid_opts_error(DBusMessage *message,
41 const char *arg)
42 {
43 DBusMessage *reply;
44
45 reply = dbus_message_new_error(message, WPAS_ERROR_INVALID_OPTS,
46 "Did not receive correct message "
47 "arguments.");
48 if (arg != NULL)
49 dbus_message_append_args(reply, DBUS_TYPE_STRING, &arg,
50 DBUS_TYPE_INVALID);
51
52 return reply;
53 }
54
55
56 /**
57 * wpas_dbus_new_success_reply - Return a new success reply message
58 * @message: Pointer to incoming dbus message this reply refers to
59 * Returns: a dbus message containing a single UINT32 that indicates
60 * success (ie, a value of 1)
61 *
62 * Convenience function to create and return a success reply message
63 */
wpas_dbus_new_success_reply(DBusMessage * message)64 static DBusMessage * wpas_dbus_new_success_reply(DBusMessage *message)
65 {
66 DBusMessage *reply;
67 unsigned int success = 1;
68
69 reply = dbus_message_new_method_return(message);
70 dbus_message_append_args(reply, DBUS_TYPE_UINT32, &success,
71 DBUS_TYPE_INVALID);
72 return reply;
73 }
74
75
wpas_dbus_free_wpa_interface(struct wpa_interface * iface)76 static void wpas_dbus_free_wpa_interface(struct wpa_interface *iface)
77 {
78 free((char *) iface->driver);
79 free((char *) iface->driver_param);
80 free((char *) iface->confname);
81 free((char *) iface->bridge_ifname);
82 }
83
84
85 /**
86 * wpas_dbus_global_add_interface - Request registration of a network interface
87 * @message: Pointer to incoming dbus message
88 * @global: %wpa_supplicant global data structure
89 * Returns: The object path of the new interface object,
90 * or a dbus error message with more information
91 *
92 * Handler function for "addInterface" method call. Handles requests
93 * by dbus clients to register a network interface that wpa_supplicant
94 * will manage.
95 */
wpas_dbus_global_add_interface(DBusMessage * message,struct wpa_global * global)96 DBusMessage * wpas_dbus_global_add_interface(DBusMessage *message,
97 struct wpa_global *global)
98 {
99 struct wpa_interface iface;
100 char *ifname = NULL;
101 DBusMessage *reply = NULL;
102 DBusMessageIter iter;
103
104 memset(&iface, 0, sizeof(iface));
105
106 dbus_message_iter_init(message, &iter);
107
108 /* First argument: interface name (DBUS_TYPE_STRING)
109 * Required; must be non-zero length
110 */
111 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
112 goto error;
113 dbus_message_iter_get_basic(&iter, &ifname);
114 if (!strlen(ifname))
115 goto error;
116 iface.ifname = ifname;
117
118 /* Second argument: dict of options */
119 if (dbus_message_iter_next(&iter)) {
120 DBusMessageIter iter_dict;
121 struct wpa_dbus_dict_entry entry;
122
123 if (!wpa_dbus_dict_open_read(&iter, &iter_dict))
124 goto error;
125 while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
126 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
127 goto error;
128 if (!strcmp(entry.key, "driver") &&
129 (entry.type == DBUS_TYPE_STRING)) {
130 iface.driver = strdup(entry.str_value);
131 if (iface.driver == NULL)
132 goto error;
133 } else if (!strcmp(entry.key, "driver-params") &&
134 (entry.type == DBUS_TYPE_STRING)) {
135 iface.driver_param = strdup(entry.str_value);
136 if (iface.driver_param == NULL)
137 goto error;
138 } else if (!strcmp(entry.key, "config-file") &&
139 (entry.type == DBUS_TYPE_STRING)) {
140 iface.confname = strdup(entry.str_value);
141 if (iface.confname == NULL)
142 goto error;
143 } else if (!strcmp(entry.key, "bridge-ifname") &&
144 (entry.type == DBUS_TYPE_STRING)) {
145 iface.bridge_ifname = strdup(entry.str_value);
146 if (iface.bridge_ifname == NULL)
147 goto error;
148 } else {
149 wpa_dbus_dict_entry_clear(&entry);
150 goto error;
151 }
152 wpa_dbus_dict_entry_clear(&entry);
153 }
154 }
155
156 /*
157 * Try to get the wpa_supplicant record for this iface, return
158 * an error if we already control it.
159 */
160 if (wpa_supplicant_get_iface(global, iface.ifname) != NULL) {
161 reply = dbus_message_new_error(message,
162 WPAS_ERROR_EXISTS_ERROR,
163 "wpa_supplicant already "
164 "controls this interface.");
165 } else {
166 struct wpa_supplicant *wpa_s;
167 /* Otherwise, have wpa_supplicant attach to it. */
168 if ((wpa_s = wpa_supplicant_add_iface(global, &iface))) {
169 const char *path = wpa_supplicant_get_dbus_path(wpa_s);
170 reply = dbus_message_new_method_return(message);
171 dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
172 &path, DBUS_TYPE_INVALID);
173 } else {
174 reply = dbus_message_new_error(message,
175 WPAS_ERROR_ADD_ERROR,
176 "wpa_supplicant "
177 "couldn't grab this "
178 "interface.");
179 }
180 }
181 wpas_dbus_free_wpa_interface(&iface);
182 return reply;
183
184 error:
185 wpas_dbus_free_wpa_interface(&iface);
186 return wpas_dbus_new_invalid_opts_error(message, NULL);
187 }
188
189
190 /**
191 * wpas_dbus_global_remove_interface - Request deregistration of an interface
192 * @message: Pointer to incoming dbus message
193 * @global: wpa_supplicant global data structure
194 * Returns: a dbus message containing a UINT32 indicating success (1) or
195 * failure (0), or returns a dbus error message with more information
196 *
197 * Handler function for "removeInterface" method call. Handles requests
198 * by dbus clients to deregister a network interface that wpa_supplicant
199 * currently manages.
200 */
wpas_dbus_global_remove_interface(DBusMessage * message,struct wpa_global * global)201 DBusMessage * wpas_dbus_global_remove_interface(DBusMessage *message,
202 struct wpa_global *global)
203 {
204 struct wpa_supplicant *wpa_s;
205 char *path;
206 DBusMessage *reply = NULL;
207
208 if (!dbus_message_get_args(message, NULL,
209 DBUS_TYPE_OBJECT_PATH, &path,
210 DBUS_TYPE_INVALID)) {
211 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
212 goto out;
213 }
214
215 wpa_s = wpa_supplicant_get_iface_by_dbus_path(global, path);
216 if (wpa_s == NULL) {
217 reply = wpas_dbus_new_invalid_iface_error(message);
218 goto out;
219 }
220
221 if (!wpa_supplicant_remove_iface(global, wpa_s)) {
222 reply = wpas_dbus_new_success_reply(message);
223 } else {
224 reply = dbus_message_new_error(message,
225 WPAS_ERROR_REMOVE_ERROR,
226 "wpa_supplicant couldn't "
227 "remove this interface.");
228 }
229
230 out:
231 return reply;
232 }
233
234
235 /**
236 * wpas_dbus_global_get_interface - Get the object path for an interface name
237 * @message: Pointer to incoming dbus message
238 * @global: %wpa_supplicant global data structure
239 * Returns: The object path of the interface object,
240 * or a dbus error message with more information
241 *
242 * Handler function for "getInterface" method call. Handles requests
243 * by dbus clients for the object path of an specific network interface.
244 */
wpas_dbus_global_get_interface(DBusMessage * message,struct wpa_global * global)245 DBusMessage * wpas_dbus_global_get_interface(DBusMessage *message,
246 struct wpa_global *global)
247 {
248 DBusMessage *reply = NULL;
249 const char *ifname;
250 const char *path;
251 struct wpa_supplicant *wpa_s;
252
253 if (!dbus_message_get_args(message, NULL,
254 DBUS_TYPE_STRING, &ifname,
255 DBUS_TYPE_INVALID)) {
256 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
257 goto out;
258 }
259
260 wpa_s = wpa_supplicant_get_iface(global, ifname);
261 if (wpa_s == NULL) {
262 reply = wpas_dbus_new_invalid_iface_error(message);
263 goto out;
264 }
265
266 path = wpa_supplicant_get_dbus_path(wpa_s);
267 if (path == NULL) {
268 reply = dbus_message_new_error(message,
269 WPAS_ERROR_INTERNAL_ERROR,
270 "an internal error occurred "
271 "getting the interface.");
272 goto out;
273 }
274
275 reply = dbus_message_new_method_return(message);
276 dbus_message_append_args(reply,
277 DBUS_TYPE_OBJECT_PATH, &path,
278 DBUS_TYPE_INVALID);
279
280 out:
281 return reply;
282 }
283
284 /**
285 * wpas_dbus_global_set_debugparams- Set the debug params
286 * @message: Pointer to incoming dbus message
287 * @global: %wpa_supplicant global data structure
288 * Returns: a dbus message containing a UINT32 indicating success (1) or
289 * failure (0), or returns a dbus error message with more information
290 *
291 * Handler function for "setDebugParams" method call. Handles requests
292 * by dbus clients for the object path of an specific network interface.
293 */
wpas_dbus_global_set_debugparams(DBusMessage * message,struct wpa_global * global)294 DBusMessage * wpas_dbus_global_set_debugparams(DBusMessage *message,
295 struct wpa_global *global)
296 {
297 DBusMessage *reply = NULL;
298 int debug_level;
299 dbus_bool_t debug_timestamp;
300 dbus_bool_t debug_show_keys;
301
302 if (!dbus_message_get_args(message, NULL,
303 DBUS_TYPE_INT32, &debug_level,
304 DBUS_TYPE_BOOLEAN, &debug_timestamp,
305 DBUS_TYPE_BOOLEAN, &debug_show_keys,
306 DBUS_TYPE_INVALID)) {
307 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
308 goto out;
309 }
310
311 /* check for allowed debuglevels */
312 if (debug_level != MSG_MSGDUMP &&
313 debug_level != MSG_DEBUG &&
314 debug_level != MSG_INFO &&
315 debug_level != MSG_WARNING &&
316 debug_level != MSG_ERROR) {
317 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
318 goto out;
319 }
320
321 wpa_debug_level = debug_level;
322 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
323 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
324 reply = wpas_dbus_new_success_reply(message);
325
326 out:
327 return reply;
328 }
329
330 /**
331 * wpas_dbus_iface_scan - Request a wireless scan on an interface
332 * @message: Pointer to incoming dbus message
333 * @wpa_s: wpa_supplicant structure for a network interface
334 * Returns: a dbus message containing a UINT32 indicating success (1) or
335 * failure (0)
336 *
337 * Handler function for "scan" method call of a network device. Requests
338 * that wpa_supplicant perform a wireless scan as soon as possible
339 * on a particular wireless interface.
340 */
wpas_dbus_iface_scan(DBusMessage * message,struct wpa_supplicant * wpa_s)341 DBusMessage * wpas_dbus_iface_scan(DBusMessage *message,
342 struct wpa_supplicant *wpa_s)
343 {
344 wpa_s->scan_req = 2;
345 wpa_supplicant_req_scan(wpa_s, 0, 0);
346 return wpas_dbus_new_success_reply(message);
347 }
348
349
350 /**
351 * wpas_dbus_iface_scan_results - Get the results of a recent scan request
352 * @message: Pointer to incoming dbus message
353 * @wpa_s: wpa_supplicant structure for a network interface
354 * Returns: a dbus message containing a dbus array of objects paths, or returns
355 * a dbus error message if not scan results could be found
356 *
357 * Handler function for "scanResults" method call of a network device. Returns
358 * a dbus message containing the object paths of wireless networks found.
359 */
wpas_dbus_iface_scan_results(DBusMessage * message,struct wpa_supplicant * wpa_s)360 DBusMessage * wpas_dbus_iface_scan_results(DBusMessage *message,
361 struct wpa_supplicant *wpa_s)
362 {
363 DBusMessage *reply = NULL;
364 DBusMessageIter iter;
365 DBusMessageIter sub_iter;
366 size_t i;
367
368 /* Ensure we've actually got scan results to return */
369 if (wpa_s->scan_res == NULL &&
370 wpa_supplicant_get_scan_results(wpa_s) < 0) {
371 reply = dbus_message_new_error(message, WPAS_ERROR_SCAN_ERROR,
372 "An error ocurred getting scan "
373 "results.");
374 goto out;
375 }
376
377 /* Create and initialize the return message */
378 reply = dbus_message_new_method_return(message);
379 dbus_message_iter_init_append(reply, &iter);
380 dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
381 DBUS_TYPE_OBJECT_PATH_AS_STRING,
382 &sub_iter);
383
384 /* Loop through scan results and append each result's object path */
385 for (i = 0; i < wpa_s->scan_res->num; i++) {
386 struct wpa_scan_res *res = wpa_s->scan_res->res[i];
387 char *path;
388
389 path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
390 if (path == NULL) {
391 perror("wpas_dbus_iface_scan_results[dbus]: out of "
392 "memory.");
393 wpa_printf(MSG_ERROR, "dbus control interface: not "
394 "enough memory to send scan results "
395 "signal.");
396 break;
397 }
398 /* Construct the object path for this network. Note that ':'
399 * is not a valid character in dbus object paths.
400 */
401 snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
402 "%s/" WPAS_DBUS_BSSIDS_PART "/"
403 WPAS_DBUS_BSSID_FORMAT,
404 wpa_supplicant_get_dbus_path(wpa_s),
405 MAC2STR(res->bssid));
406 dbus_message_iter_append_basic(&sub_iter,
407 DBUS_TYPE_OBJECT_PATH, &path);
408 free(path);
409 }
410
411 dbus_message_iter_close_container(&iter, &sub_iter);
412
413 out:
414 return reply;
415 }
416
417
418 /**
419 * wpas_dbus_bssid_properties - Return the properties of a scanned network
420 * @message: Pointer to incoming dbus message
421 * @wpa_s: wpa_supplicant structure for a network interface
422 * @res: wpa_supplicant scan result for which to get properties
423 * Returns: a dbus message containing the properties for the requested network
424 *
425 * Handler function for "properties" method call of a scanned network.
426 * Returns a dbus message containing the the properties.
427 */
wpas_dbus_bssid_properties(DBusMessage * message,struct wpa_supplicant * wpa_s,struct wpa_scan_res * res)428 DBusMessage * wpas_dbus_bssid_properties(DBusMessage *message,
429 struct wpa_supplicant *wpa_s,
430 struct wpa_scan_res *res)
431 {
432 DBusMessage *reply = NULL;
433 DBusMessageIter iter, iter_dict;
434 const u8 *ie;
435
436 /* Dump the properties into a dbus message */
437 reply = dbus_message_new_method_return(message);
438
439 dbus_message_iter_init_append(reply, &iter);
440 if (!wpa_dbus_dict_open_write(&iter, &iter_dict))
441 goto error;
442
443 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "bssid",
444 (const char *) res->bssid,
445 ETH_ALEN))
446 goto error;
447
448 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
449 if (ie) {
450 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "ssid",
451 (const char *) (ie + 2),
452 ie[1]))
453 goto error;
454 }
455
456 ie = wpa_scan_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
457 if (ie) {
458 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "wpaie",
459 (const char *) ie,
460 ie[1] + 2))
461 goto error;
462 }
463
464 ie = wpa_scan_get_ie(res, WLAN_EID_RSN);
465 if (ie) {
466 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "rsnie",
467 (const char *) ie,
468 ie[1] + 2))
469 goto error;
470 }
471
472 ie = wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE);
473 if (ie) {
474 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "wpsie",
475 (const char *) ie,
476 ie[1] + 2))
477 goto error;
478 }
479
480 if (res->freq) {
481 if (!wpa_dbus_dict_append_int32(&iter_dict, "frequency",
482 res->freq))
483 goto error;
484 }
485 if (!wpa_dbus_dict_append_uint16(&iter_dict, "capabilities",
486 res->caps))
487 goto error;
488 if (!wpa_dbus_dict_append_int32(&iter_dict, "quality", res->qual))
489 goto error;
490 if (!wpa_dbus_dict_append_int32(&iter_dict, "noise", res->noise))
491 goto error;
492 if (!wpa_dbus_dict_append_int32(&iter_dict, "level", res->level))
493 goto error;
494 if (!wpa_dbus_dict_append_int32(&iter_dict, "maxrate",
495 wpa_scan_get_max_rate(res) * 500000))
496 goto error;
497
498 if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
499 goto error;
500
501 return reply;
502
503 error:
504 if (reply)
505 dbus_message_unref(reply);
506 return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
507 "an internal error occurred returning "
508 "BSSID properties.");
509 }
510
511
512 /**
513 * wpas_dbus_iface_capabilities - Return interface capabilities
514 * @message: Pointer to incoming dbus message
515 * @wpa_s: wpa_supplicant structure for a network interface
516 * Returns: A dbus message containing a dict of strings
517 *
518 * Handler function for "capabilities" method call of an interface.
519 */
wpas_dbus_iface_capabilities(DBusMessage * message,struct wpa_supplicant * wpa_s)520 DBusMessage * wpas_dbus_iface_capabilities(DBusMessage *message,
521 struct wpa_supplicant *wpa_s)
522 {
523 DBusMessage *reply = NULL;
524 struct wpa_driver_capa capa;
525 int res;
526 DBusMessageIter iter, iter_dict;
527 char **eap_methods;
528 size_t num_items;
529 dbus_bool_t strict = FALSE;
530 DBusMessageIter iter_dict_entry, iter_dict_val, iter_array;
531
532 if (!dbus_message_get_args(message, NULL,
533 DBUS_TYPE_BOOLEAN, &strict,
534 DBUS_TYPE_INVALID))
535 strict = FALSE;
536
537 reply = dbus_message_new_method_return(message);
538
539 dbus_message_iter_init_append(reply, &iter);
540 if (!wpa_dbus_dict_open_write(&iter, &iter_dict))
541 goto error;
542
543 /* EAP methods */
544 eap_methods = eap_get_names_as_string_array(&num_items);
545 if (eap_methods) {
546 dbus_bool_t success = FALSE;
547 size_t i = 0;
548
549 success = wpa_dbus_dict_append_string_array(
550 &iter_dict, "eap", (const char **) eap_methods,
551 num_items);
552
553 /* free returned method array */
554 while (eap_methods[i])
555 free(eap_methods[i++]);
556 free(eap_methods);
557
558 if (!success)
559 goto error;
560 }
561
562 res = wpa_drv_get_capa(wpa_s, &capa);
563
564 /***** pairwise cipher */
565 if (res < 0) {
566 if (!strict) {
567 const char *args[] = {"CCMP", "TKIP", "NONE"};
568 if (!wpa_dbus_dict_append_string_array(
569 &iter_dict, "pairwise", args,
570 sizeof(args) / sizeof(char*)))
571 goto error;
572 }
573 } else {
574 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "pairwise",
575 &iter_dict_entry,
576 &iter_dict_val,
577 &iter_array))
578 goto error;
579
580 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
581 if (!wpa_dbus_dict_string_array_add_element(
582 &iter_array, "CCMP"))
583 goto error;
584 }
585
586 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
587 if (!wpa_dbus_dict_string_array_add_element(
588 &iter_array, "TKIP"))
589 goto error;
590 }
591
592 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
593 if (!wpa_dbus_dict_string_array_add_element(
594 &iter_array, "NONE"))
595 goto error;
596 }
597
598 if (!wpa_dbus_dict_end_string_array(&iter_dict,
599 &iter_dict_entry,
600 &iter_dict_val,
601 &iter_array))
602 goto error;
603 }
604
605 /***** group cipher */
606 if (res < 0) {
607 if (!strict) {
608 const char *args[] = {
609 "CCMP", "TKIP", "WEP104", "WEP40"
610 };
611 if (!wpa_dbus_dict_append_string_array(
612 &iter_dict, "group", args,
613 sizeof(args) / sizeof(char*)))
614 goto error;
615 }
616 } else {
617 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "group",
618 &iter_dict_entry,
619 &iter_dict_val,
620 &iter_array))
621 goto error;
622
623 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
624 if (!wpa_dbus_dict_string_array_add_element(
625 &iter_array, "CCMP"))
626 goto error;
627 }
628
629 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
630 if (!wpa_dbus_dict_string_array_add_element(
631 &iter_array, "TKIP"))
632 goto error;
633 }
634
635 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
636 if (!wpa_dbus_dict_string_array_add_element(
637 &iter_array, "WEP104"))
638 goto error;
639 }
640
641 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
642 if (!wpa_dbus_dict_string_array_add_element(
643 &iter_array, "WEP40"))
644 goto error;
645 }
646
647 if (!wpa_dbus_dict_end_string_array(&iter_dict,
648 &iter_dict_entry,
649 &iter_dict_val,
650 &iter_array))
651 goto error;
652 }
653
654 /***** key management */
655 if (res < 0) {
656 if (!strict) {
657 const char *args[] = {
658 "WPA-PSK", "WPA-EAP", "IEEE8021X", "WPA-NONE",
659 "NONE"
660 };
661 if (!wpa_dbus_dict_append_string_array(
662 &iter_dict, "key_mgmt", args,
663 sizeof(args) / sizeof(char*)))
664 goto error;
665 }
666 } else {
667 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "key_mgmt",
668 &iter_dict_entry,
669 &iter_dict_val,
670 &iter_array))
671 goto error;
672
673 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
674 "NONE"))
675 goto error;
676
677 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
678 "IEEE8021X"))
679 goto error;
680
681 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
682 WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
683 if (!wpa_dbus_dict_string_array_add_element(
684 &iter_array, "WPA-EAP"))
685 goto error;
686 }
687
688 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
689 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
690 if (!wpa_dbus_dict_string_array_add_element(
691 &iter_array, "WPA-PSK"))
692 goto error;
693 }
694
695 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
696 if (!wpa_dbus_dict_string_array_add_element(
697 &iter_array, "WPA-NONE"))
698 goto error;
699 }
700
701 if (!wpa_dbus_dict_end_string_array(&iter_dict,
702 &iter_dict_entry,
703 &iter_dict_val,
704 &iter_array))
705 goto error;
706 }
707
708 /***** WPA protocol */
709 if (res < 0) {
710 if (!strict) {
711 const char *args[] = { "RSN", "WPA" };
712 if (!wpa_dbus_dict_append_string_array(
713 &iter_dict, "proto", args,
714 sizeof(args) / sizeof(char*)))
715 goto error;
716 }
717 } else {
718 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "proto",
719 &iter_dict_entry,
720 &iter_dict_val,
721 &iter_array))
722 goto error;
723
724 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
725 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
726 if (!wpa_dbus_dict_string_array_add_element(
727 &iter_array, "RSN"))
728 goto error;
729 }
730
731 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
732 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
733 if (!wpa_dbus_dict_string_array_add_element(
734 &iter_array, "WPA"))
735 goto error;
736 }
737
738 if (!wpa_dbus_dict_end_string_array(&iter_dict,
739 &iter_dict_entry,
740 &iter_dict_val,
741 &iter_array))
742 goto error;
743 }
744
745 /***** auth alg */
746 if (res < 0) {
747 if (!strict) {
748 const char *args[] = { "OPEN", "SHARED", "LEAP" };
749 if (!wpa_dbus_dict_append_string_array(
750 &iter_dict, "auth_alg", args,
751 sizeof(args) / sizeof(char*)))
752 goto error;
753 }
754 } else {
755 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "auth_alg",
756 &iter_dict_entry,
757 &iter_dict_val,
758 &iter_array))
759 goto error;
760
761 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
762 if (!wpa_dbus_dict_string_array_add_element(
763 &iter_array, "OPEN"))
764 goto error;
765 }
766
767 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
768 if (!wpa_dbus_dict_string_array_add_element(
769 &iter_array, "SHARED"))
770 goto error;
771 }
772
773 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
774 if (!wpa_dbus_dict_string_array_add_element(
775 &iter_array, "LEAP"))
776 goto error;
777 }
778
779 if (!wpa_dbus_dict_end_string_array(&iter_dict,
780 &iter_dict_entry,
781 &iter_dict_val,
782 &iter_array))
783 goto error;
784 }
785
786 if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
787 goto error;
788
789 return reply;
790
791 error:
792 if (reply)
793 dbus_message_unref(reply);
794 return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
795 "an internal error occurred returning "
796 "interface capabilities.");
797 }
798
799
800 /**
801 * wpas_dbus_iface_add_network - Add a new configured network
802 * @message: Pointer to incoming dbus message
803 * @wpa_s: wpa_supplicant structure for a network interface
804 * Returns: A dbus message containing the object path of the new network
805 *
806 * Handler function for "addNetwork" method call of a network interface.
807 */
wpas_dbus_iface_add_network(DBusMessage * message,struct wpa_supplicant * wpa_s)808 DBusMessage * wpas_dbus_iface_add_network(DBusMessage *message,
809 struct wpa_supplicant *wpa_s)
810 {
811 DBusMessage *reply = NULL;
812 struct wpa_ssid *ssid;
813 char *path = NULL;
814
815 path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
816 if (path == NULL) {
817 perror("wpas_dbus_iface_scan_results[dbus]: out of "
818 "memory.");
819 wpa_printf(MSG_ERROR, "dbus control interface: not "
820 "enough memory to send scan results "
821 "signal.");
822 goto out;
823 }
824
825 ssid = wpa_config_add_network(wpa_s->conf);
826 if (ssid == NULL) {
827 reply = dbus_message_new_error(message,
828 WPAS_ERROR_ADD_NETWORK_ERROR,
829 "wpa_supplicant could not add "
830 "a network on this interface.");
831 goto out;
832 }
833 ssid->disabled = 1;
834 wpa_config_set_network_defaults(ssid);
835
836 /* Construct the object path for this network. */
837 snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
838 "%s/" WPAS_DBUS_NETWORKS_PART "/%d",
839 wpa_supplicant_get_dbus_path(wpa_s),
840 ssid->id);
841
842 reply = dbus_message_new_method_return(message);
843 dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
844 &path, DBUS_TYPE_INVALID);
845
846 out:
847 free(path);
848 return reply;
849 }
850
851
852 /**
853 * wpas_dbus_iface_remove_network - Remove a configured network
854 * @message: Pointer to incoming dbus message
855 * @wpa_s: wpa_supplicant structure for a network interface
856 * Returns: A dbus message containing a UINT32 indicating success (1) or
857 * failure (0)
858 *
859 * Handler function for "removeNetwork" method call of a network interface.
860 */
wpas_dbus_iface_remove_network(DBusMessage * message,struct wpa_supplicant * wpa_s)861 DBusMessage * wpas_dbus_iface_remove_network(DBusMessage *message,
862 struct wpa_supplicant *wpa_s)
863 {
864 DBusMessage *reply = NULL;
865 const char *op;
866 char *iface = NULL, *net_id = NULL;
867 int id;
868 struct wpa_ssid *ssid;
869
870 if (!dbus_message_get_args(message, NULL,
871 DBUS_TYPE_OBJECT_PATH, &op,
872 DBUS_TYPE_INVALID)) {
873 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
874 goto out;
875 }
876
877 /* Extract the network ID */
878 iface = wpas_dbus_decompose_object_path(op, &net_id, NULL);
879 if (iface == NULL) {
880 reply = wpas_dbus_new_invalid_network_error(message);
881 goto out;
882 }
883 /* Ensure the network is actually a child of this interface */
884 if (strcmp(iface, wpa_supplicant_get_dbus_path(wpa_s)) != 0) {
885 reply = wpas_dbus_new_invalid_network_error(message);
886 goto out;
887 }
888
889 id = strtoul(net_id, NULL, 10);
890 ssid = wpa_config_get_network(wpa_s->conf, id);
891 if (ssid == NULL) {
892 reply = wpas_dbus_new_invalid_network_error(message);
893 goto out;
894 }
895
896 if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
897 reply = dbus_message_new_error(message,
898 WPAS_ERROR_REMOVE_NETWORK_ERROR,
899 "error removing the specified "
900 "on this interface.");
901 goto out;
902 }
903
904 if (ssid == wpa_s->current_ssid)
905 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
906 reply = wpas_dbus_new_success_reply(message);
907
908 out:
909 free(iface);
910 free(net_id);
911 return reply;
912 }
913
914
915 static const char *dont_quote[] = {
916 "key_mgmt", "proto", "pairwise", "auth_alg", "group", "eap",
917 "opensc_engine_path", "pkcs11_engine_path", "pkcs11_module_path",
918 "bssid", NULL
919 };
920
should_quote_opt(const char * key)921 static dbus_bool_t should_quote_opt(const char *key)
922 {
923 int i = 0;
924 while (dont_quote[i] != NULL) {
925 if (strcmp(key, dont_quote[i]) == 0)
926 return FALSE;
927 i++;
928 }
929 return TRUE;
930 }
931
932 /**
933 * wpas_dbus_iface_set_network - Set options for a configured network
934 * @message: Pointer to incoming dbus message
935 * @wpa_s: wpa_supplicant structure for a network interface
936 * @ssid: wpa_ssid structure for a configured network
937 * Returns: a dbus message containing a UINT32 indicating success (1) or
938 * failure (0)
939 *
940 * Handler function for "set" method call of a configured network.
941 */
wpas_dbus_iface_set_network(DBusMessage * message,struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)942 DBusMessage * wpas_dbus_iface_set_network(DBusMessage *message,
943 struct wpa_supplicant *wpa_s,
944 struct wpa_ssid *ssid)
945 {
946 DBusMessage *reply = NULL;
947 struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
948 DBusMessageIter iter, iter_dict;
949
950 dbus_message_iter_init(message, &iter);
951
952 if (!wpa_dbus_dict_open_read(&iter, &iter_dict)) {
953 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
954 goto out;
955 }
956
957 while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
958 char *value = NULL;
959 size_t size = 50;
960 int ret;
961
962 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
963 reply = wpas_dbus_new_invalid_opts_error(message,
964 NULL);
965 goto out;
966 }
967
968 /* Type conversions, since wpa_supplicant wants strings */
969 if (entry.type == DBUS_TYPE_ARRAY &&
970 entry.array_type == DBUS_TYPE_BYTE) {
971 if (entry.array_len <= 0)
972 goto error;
973
974 size = entry.array_len * 2 + 1;
975 value = os_zalloc(size);
976 if (value == NULL)
977 goto error;
978 ret = wpa_snprintf_hex(value, size,
979 (u8 *) entry.bytearray_value,
980 entry.array_len);
981 if (ret <= 0)
982 goto error;
983 } else if (entry.type == DBUS_TYPE_STRING) {
984 if (should_quote_opt(entry.key)) {
985 size = strlen(entry.str_value);
986 /* Zero-length option check */
987 if (size <= 0)
988 goto error;
989 size += 3; /* For quotes and terminator */
990 value = os_zalloc(size);
991 if (value == NULL)
992 goto error;
993 ret = snprintf(value, size, "\"%s\"",
994 entry.str_value);
995 if (ret < 0 || (size_t) ret != (size - 1))
996 goto error;
997 } else {
998 value = strdup(entry.str_value);
999 if (value == NULL)
1000 goto error;
1001 }
1002 } else if (entry.type == DBUS_TYPE_UINT32) {
1003 value = os_zalloc(size);
1004 if (value == NULL)
1005 goto error;
1006 ret = snprintf(value, size, "%u", entry.uint32_value);
1007 if (ret <= 0)
1008 goto error;
1009 } else if (entry.type == DBUS_TYPE_INT32) {
1010 value = os_zalloc(size);
1011 if (value == NULL)
1012 goto error;
1013 ret = snprintf(value, size, "%d", entry.int32_value);
1014 if (ret <= 0)
1015 goto error;
1016 } else
1017 goto error;
1018
1019 if (wpa_config_set(ssid, entry.key, value, 0) < 0)
1020 goto error;
1021
1022 if ((strcmp(entry.key, "psk") == 0 &&
1023 value[0] == '"' && ssid->ssid_len) ||
1024 (strcmp(entry.key, "ssid") == 0 && ssid->passphrase))
1025 wpa_config_update_psk(ssid);
1026
1027 free(value);
1028 wpa_dbus_dict_entry_clear(&entry);
1029 continue;
1030
1031 error:
1032 free(value);
1033 reply = wpas_dbus_new_invalid_opts_error(message, entry.key);
1034 wpa_dbus_dict_entry_clear(&entry);
1035 break;
1036 }
1037
1038 if (!reply)
1039 reply = wpas_dbus_new_success_reply(message);
1040
1041 out:
1042 return reply;
1043 }
1044
1045
1046 /**
1047 * wpas_dbus_iface_enable_network - Mark a configured network as enabled
1048 * @message: Pointer to incoming dbus message
1049 * @wpa_s: wpa_supplicant structure for a network interface
1050 * @ssid: wpa_ssid structure for a configured network
1051 * Returns: A dbus message containing a UINT32 indicating success (1) or
1052 * failure (0)
1053 *
1054 * Handler function for "enable" method call of a configured network.
1055 */
wpas_dbus_iface_enable_network(DBusMessage * message,struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)1056 DBusMessage * wpas_dbus_iface_enable_network(DBusMessage *message,
1057 struct wpa_supplicant *wpa_s,
1058 struct wpa_ssid *ssid)
1059 {
1060 if (wpa_s->current_ssid == NULL && ssid->disabled) {
1061 /*
1062 * Try to reassociate since there is no current configuration
1063 * and a new network was made available.
1064 */
1065 wpa_s->reassociate = 1;
1066 wpa_supplicant_req_scan(wpa_s, 0, 0);
1067 }
1068 ssid->disabled = 0;
1069
1070 return wpas_dbus_new_success_reply(message);
1071 }
1072
1073
1074 /**
1075 * wpas_dbus_iface_disable_network - Mark a configured network as disabled
1076 * @message: Pointer to incoming dbus message
1077 * @wpa_s: wpa_supplicant structure for a network interface
1078 * @ssid: wpa_ssid structure for a configured network
1079 * Returns: A dbus message containing a UINT32 indicating success (1) or
1080 * failure (0)
1081 *
1082 * Handler function for "disable" method call of a configured network.
1083 */
wpas_dbus_iface_disable_network(DBusMessage * message,struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)1084 DBusMessage * wpas_dbus_iface_disable_network(DBusMessage *message,
1085 struct wpa_supplicant *wpa_s,
1086 struct wpa_ssid *ssid)
1087 {
1088 if (ssid == wpa_s->current_ssid)
1089 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1090 ssid->disabled = 1;
1091
1092 return wpas_dbus_new_success_reply(message);
1093 }
1094
1095
1096 /**
1097 * wpas_dbus_iface_select_network - Attempt association with a configured network
1098 * @message: Pointer to incoming dbus message
1099 * @wpa_s: wpa_supplicant structure for a network interface
1100 * Returns: A dbus message containing a UINT32 indicating success (1) or
1101 * failure (0)
1102 *
1103 * Handler function for "selectNetwork" method call of network interface.
1104 */
wpas_dbus_iface_select_network(DBusMessage * message,struct wpa_supplicant * wpa_s)1105 DBusMessage * wpas_dbus_iface_select_network(DBusMessage *message,
1106 struct wpa_supplicant *wpa_s)
1107 {
1108 DBusMessage *reply = NULL;
1109 const char *op;
1110 struct wpa_ssid *ssid;
1111 char *iface_obj_path = NULL;
1112 char *network = NULL;
1113
1114 if (strlen(dbus_message_get_signature(message)) == 0) {
1115 /* Any network */
1116 ssid = wpa_s->conf->ssid;
1117 while (ssid) {
1118 ssid->disabled = 0;
1119 ssid = ssid->next;
1120 }
1121 wpa_s->reassociate = 1;
1122 wpa_supplicant_req_scan(wpa_s, 0, 0);
1123 } else {
1124 const char *obj_path;
1125 int nid;
1126
1127 if (!dbus_message_get_args(message, NULL,
1128 DBUS_TYPE_OBJECT_PATH, &op,
1129 DBUS_TYPE_INVALID)) {
1130 reply = wpas_dbus_new_invalid_opts_error(message,
1131 NULL);
1132 goto out;
1133 }
1134
1135 /* Extract the network number */
1136 iface_obj_path = wpas_dbus_decompose_object_path(op,
1137 &network,
1138 NULL);
1139 if (iface_obj_path == NULL) {
1140 reply = wpas_dbus_new_invalid_iface_error(message);
1141 goto out;
1142 }
1143 /* Ensure the object path really points to this interface */
1144 obj_path = wpa_supplicant_get_dbus_path(wpa_s);
1145 if (strcmp(iface_obj_path, obj_path) != 0) {
1146 reply = wpas_dbus_new_invalid_network_error(message);
1147 goto out;
1148 }
1149
1150 nid = strtoul(network, NULL, 10);
1151 if (errno == EINVAL) {
1152 reply = wpas_dbus_new_invalid_network_error(message);
1153 goto out;
1154 }
1155
1156 ssid = wpa_config_get_network(wpa_s->conf, nid);
1157 if (ssid == NULL) {
1158 reply = wpas_dbus_new_invalid_network_error(message);
1159 goto out;
1160 }
1161
1162 /* Finally, associate with the network */
1163 if (ssid != wpa_s->current_ssid && wpa_s->current_ssid)
1164 wpa_supplicant_disassociate(
1165 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1166
1167 /* Mark all other networks disabled and trigger reassociation
1168 */
1169 ssid = wpa_s->conf->ssid;
1170 while (ssid) {
1171 ssid->disabled = (nid != ssid->id);
1172 ssid = ssid->next;
1173 }
1174 wpa_s->disconnected = 0;
1175 wpa_s->reassociate = 1;
1176 wpa_supplicant_req_scan(wpa_s, 0, 0);
1177 }
1178
1179 reply = wpas_dbus_new_success_reply(message);
1180
1181 out:
1182 free(iface_obj_path);
1183 free(network);
1184 return reply;
1185 }
1186
1187
1188 /**
1189 * wpas_dbus_iface_disconnect - Terminate the current connection
1190 * @message: Pointer to incoming dbus message
1191 * @wpa_s: wpa_supplicant structure for a network interface
1192 * Returns: A dbus message containing a UINT32 indicating success (1) or
1193 * failure (0)
1194 *
1195 * Handler function for "disconnect" method call of network interface.
1196 */
wpas_dbus_iface_disconnect(DBusMessage * message,struct wpa_supplicant * wpa_s)1197 DBusMessage * wpas_dbus_iface_disconnect(DBusMessage *message,
1198 struct wpa_supplicant *wpa_s)
1199 {
1200 wpa_s->disconnected = 1;
1201 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1202
1203 return wpas_dbus_new_success_reply(message);
1204 }
1205
1206
1207 /**
1208 * wpas_dbus_iface_set_ap_scan - Control roaming mode
1209 * @message: Pointer to incoming dbus message
1210 * @wpa_s: wpa_supplicant structure for a network interface
1211 * Returns: A dbus message containing a UINT32 indicating success (1) or
1212 * failure (0)
1213 *
1214 * Handler function for "setAPScan" method call.
1215 */
wpas_dbus_iface_set_ap_scan(DBusMessage * message,struct wpa_supplicant * wpa_s)1216 DBusMessage * wpas_dbus_iface_set_ap_scan(DBusMessage *message,
1217 struct wpa_supplicant *wpa_s)
1218 {
1219 DBusMessage *reply = NULL;
1220 dbus_uint32_t ap_scan = 1;
1221
1222 if (!dbus_message_get_args(message, NULL, DBUS_TYPE_UINT32, &ap_scan,
1223 DBUS_TYPE_INVALID)) {
1224 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
1225 goto out;
1226 }
1227
1228 if (ap_scan > 2) {
1229 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
1230 goto out;
1231 }
1232 wpa_s->conf->ap_scan = ap_scan;
1233 reply = wpas_dbus_new_success_reply(message);
1234
1235 out:
1236 return reply;
1237 }
1238
1239
1240 /**
1241 * wpas_dbus_iface_set_smartcard_modules - Set smartcard related module paths
1242 * @message: Pointer to incoming dbus message
1243 * @wpa_s: wpa_supplicant structure for a network interface
1244 * Returns: A dbus message containing a UINT32 indicating success (1) or
1245 * failure (0)
1246 *
1247 * Handler function for "setSmartcardModules" method call.
1248 */
wpas_dbus_iface_set_smartcard_modules(DBusMessage * message,struct wpa_supplicant * wpa_s)1249 DBusMessage * wpas_dbus_iface_set_smartcard_modules(
1250 DBusMessage *message, struct wpa_supplicant *wpa_s)
1251 {
1252 DBusMessageIter iter, iter_dict;
1253 char *opensc_engine_path = NULL;
1254 char *pkcs11_engine_path = NULL;
1255 char *pkcs11_module_path = NULL;
1256 struct wpa_dbus_dict_entry entry;
1257
1258 if (!dbus_message_iter_init(message, &iter))
1259 goto error;
1260
1261 if (!wpa_dbus_dict_open_read(&iter, &iter_dict))
1262 goto error;
1263
1264 while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
1265 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
1266 goto error;
1267 if (!strcmp(entry.key, "opensc_engine_path") &&
1268 (entry.type == DBUS_TYPE_STRING)) {
1269 opensc_engine_path = os_strdup(entry.str_value);
1270 if (opensc_engine_path == NULL)
1271 goto error;
1272 } else if (!strcmp(entry.key, "pkcs11_engine_path") &&
1273 (entry.type == DBUS_TYPE_STRING)) {
1274 pkcs11_engine_path = os_strdup(entry.str_value);
1275 if (pkcs11_engine_path == NULL)
1276 goto error;
1277 } else if (!strcmp(entry.key, "pkcs11_module_path") &&
1278 (entry.type == DBUS_TYPE_STRING)) {
1279 pkcs11_module_path = os_strdup(entry.str_value);
1280 if (pkcs11_module_path == NULL)
1281 goto error;
1282 } else {
1283 wpa_dbus_dict_entry_clear(&entry);
1284 goto error;
1285 }
1286 wpa_dbus_dict_entry_clear(&entry);
1287 }
1288
1289 #ifdef EAP_TLS_OPENSSL
1290 os_free(wpa_s->conf->opensc_engine_path);
1291 wpa_s->conf->opensc_engine_path = opensc_engine_path;
1292 os_free(wpa_s->conf->pkcs11_engine_path);
1293 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path;
1294 os_free(wpa_s->conf->pkcs11_module_path);
1295 wpa_s->conf->pkcs11_module_path = pkcs11_module_path;
1296 #endif /* EAP_TLS_OPENSSL */
1297
1298 wpa_sm_set_eapol(wpa_s->wpa, NULL);
1299 eapol_sm_deinit(wpa_s->eapol);
1300 wpa_s->eapol = NULL;
1301 wpa_supplicant_init_eapol(wpa_s);
1302 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
1303
1304 return wpas_dbus_new_success_reply(message);
1305
1306 error:
1307 os_free(opensc_engine_path);
1308 os_free(pkcs11_engine_path);
1309 os_free(pkcs11_module_path);
1310 return wpas_dbus_new_invalid_opts_error(message, NULL);
1311 }
1312
1313 /**
1314 * wpas_dbus_iface_get_state - Get interface state
1315 * @message: Pointer to incoming dbus message
1316 * @wpa_s: wpa_supplicant structure for a network interface
1317 * Returns: A dbus message containing a STRING representing the current
1318 * interface state
1319 *
1320 * Handler function for "state" method call.
1321 */
wpas_dbus_iface_get_state(DBusMessage * message,struct wpa_supplicant * wpa_s)1322 DBusMessage * wpas_dbus_iface_get_state(DBusMessage *message,
1323 struct wpa_supplicant *wpa_s)
1324 {
1325 DBusMessage *reply = NULL;
1326 const char *str_state;
1327
1328 reply = dbus_message_new_method_return(message);
1329 if (reply != NULL) {
1330 str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
1331 dbus_message_append_args(reply, DBUS_TYPE_STRING, &str_state,
1332 DBUS_TYPE_INVALID);
1333 }
1334
1335 return reply;
1336 }
1337
1338
1339 /**
1340 * wpas_dbus_iface_get_scanning - Get interface scanning state
1341 * @message: Pointer to incoming dbus message
1342 * @wpa_s: wpa_supplicant structure for a network interface
1343 * Returns: A dbus message containing whether the interface is scanning
1344 *
1345 * Handler function for "scanning" method call.
1346 */
wpas_dbus_iface_get_scanning(DBusMessage * message,struct wpa_supplicant * wpa_s)1347 DBusMessage * wpas_dbus_iface_get_scanning(DBusMessage *message,
1348 struct wpa_supplicant *wpa_s)
1349 {
1350 DBusMessage *reply = NULL;
1351 dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
1352
1353 reply = dbus_message_new_method_return(message);
1354 if (reply != NULL) {
1355 dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &scanning,
1356 DBUS_TYPE_INVALID);
1357 } else {
1358 perror("wpas_dbus_iface_get_scanning[dbus]: out of "
1359 "memory.");
1360 wpa_printf(MSG_ERROR, "dbus control interface: not enough "
1361 "memory to return scanning state.");
1362 }
1363
1364 return reply;
1365 }
1366
1367
1368 /**
1369 * wpas_dbus_iface_set_blobs - Store named binary blobs (ie, for certificates)
1370 * @message: Pointer to incoming dbus message
1371 * @wpa_s: %wpa_supplicant data structure
1372 * Returns: A dbus message containing a UINT32 indicating success (1) or
1373 * failure (0)
1374 *
1375 * Asks wpa_supplicant to internally store a one or more binary blobs.
1376 */
wpas_dbus_iface_set_blobs(DBusMessage * message,struct wpa_supplicant * wpa_s)1377 DBusMessage * wpas_dbus_iface_set_blobs(DBusMessage *message,
1378 struct wpa_supplicant *wpa_s)
1379 {
1380 DBusMessage *reply = NULL;
1381 struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
1382 DBusMessageIter iter, iter_dict;
1383
1384 dbus_message_iter_init(message, &iter);
1385
1386 if (!wpa_dbus_dict_open_read(&iter, &iter_dict))
1387 return wpas_dbus_new_invalid_opts_error(message, NULL);
1388
1389 while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
1390 struct wpa_config_blob *blob;
1391
1392 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
1393 reply = wpas_dbus_new_invalid_opts_error(message,
1394 NULL);
1395 break;
1396 }
1397
1398 if (entry.type != DBUS_TYPE_ARRAY ||
1399 entry.array_type != DBUS_TYPE_BYTE) {
1400 reply = wpas_dbus_new_invalid_opts_error(
1401 message, "Byte array expected.");
1402 break;
1403 }
1404
1405 if ((entry.array_len <= 0) || (entry.array_len > 65536) ||
1406 !strlen(entry.key)) {
1407 reply = wpas_dbus_new_invalid_opts_error(
1408 message, "Invalid array size.");
1409 break;
1410 }
1411
1412 blob = os_zalloc(sizeof(*blob));
1413 if (blob == NULL) {
1414 reply = dbus_message_new_error(
1415 message, WPAS_ERROR_ADD_ERROR,
1416 "Not enough memory to add blob.");
1417 break;
1418 }
1419 blob->data = os_zalloc(entry.array_len);
1420 if (blob->data == NULL) {
1421 reply = dbus_message_new_error(
1422 message, WPAS_ERROR_ADD_ERROR,
1423 "Not enough memory to add blob data.");
1424 os_free(blob);
1425 break;
1426 }
1427
1428 blob->name = os_strdup(entry.key);
1429 blob->len = entry.array_len;
1430 os_memcpy(blob->data, (u8 *) entry.bytearray_value,
1431 entry.array_len);
1432 if (blob->name == NULL || blob->data == NULL) {
1433 wpa_config_free_blob(blob);
1434 reply = dbus_message_new_error(
1435 message, WPAS_ERROR_ADD_ERROR,
1436 "Error adding blob.");
1437 break;
1438 }
1439
1440 /* Success */
1441 wpa_config_remove_blob(wpa_s->conf, blob->name);
1442 wpa_config_set_blob(wpa_s->conf, blob);
1443 wpa_dbus_dict_entry_clear(&entry);
1444 }
1445 wpa_dbus_dict_entry_clear(&entry);
1446
1447 return reply ? reply : wpas_dbus_new_success_reply(message);
1448 }
1449
1450
1451 /**
1452 * wpas_dbus_iface_remove_blob - Remove named binary blobs
1453 * @message: Pointer to incoming dbus message
1454 * @wpa_s: %wpa_supplicant data structure
1455 * Returns: A dbus message containing a UINT32 indicating success (1) or
1456 * failure (0)
1457 *
1458 * Asks wpa_supplicant to remove one or more previously stored binary blobs.
1459 */
wpas_dbus_iface_remove_blobs(DBusMessage * message,struct wpa_supplicant * wpa_s)1460 DBusMessage * wpas_dbus_iface_remove_blobs(DBusMessage *message,
1461 struct wpa_supplicant *wpa_s)
1462 {
1463 DBusMessageIter iter, array;
1464 char *err_msg = NULL;
1465
1466 dbus_message_iter_init(message, &iter);
1467
1468 if ((dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY) ||
1469 (dbus_message_iter_get_element_type (&iter) != DBUS_TYPE_STRING))
1470 return wpas_dbus_new_invalid_opts_error(message, NULL);
1471
1472 dbus_message_iter_recurse(&iter, &array);
1473 while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_STRING) {
1474 const char *name;
1475
1476 dbus_message_iter_get_basic(&array, &name);
1477 if (!strlen(name))
1478 err_msg = "Invalid blob name.";
1479
1480 if (wpa_config_remove_blob(wpa_s->conf, name) != 0)
1481 err_msg = "Error removing blob.";
1482 dbus_message_iter_next(&array);
1483 }
1484
1485 if (err_msg) {
1486 return dbus_message_new_error(message, WPAS_ERROR_REMOVE_ERROR,
1487 err_msg);
1488 }
1489
1490 return wpas_dbus_new_success_reply(message);
1491 }
1492