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