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Add driver wrapper callback for WPS push button pressed
[thirdparty/hostap.git] / wpa_supplicant / ctrl_iface.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant / Control interface (shared code for all backends)
52eb293d 3 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>
6fc6879b
JM		 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 "eloop.h"
19#include "wpa.h"
20#include "config.h"
21#include "eapol_supp/eapol_supp_sm.h"
22#include "wpa_supplicant_i.h"
2d5b792d 23#include "driver_i.h"
6fc6879b
JM		 24#include "ctrl_iface.h"
25#include "l2_packet/l2_packet.h"
26#include "preauth.h"
27#include "pmksa_cache.h"
90973fb2 28#include "common/wpa_ctrl.h"
6fc6879b 29#include "eap_peer/eap.h"
90973fb2 30#include "common/ieee802_11_defs.h"
fcc60db4 31#include "wps_supplicant.h"
eef7d7a1 32#include "wps/wps.h"
11ef8d35 33#include "ibss_rsn.h"
3ec97afe 34#include "ap.h"
8bac466b 35#include "notify.h"
6fc6879b 36
c5121837 37extern struct wpa_driver_ops *wpa_drivers[];
2d5b792d 38
4b4a8ae5
JM		 39static int wpa_supplicant_global_iface_list(struct wpa_global *global,
40 char *buf, int len);
6fc6879b
JM		 41static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
42 char *buf, int len);
43
44
45static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
46 char *cmd)
47{
48 char *value;
49 int ret = 0;
50
51 value = os_strchr(cmd, ' ');
52 if (value == NULL)
53 return -1;
54 *value++ = '\0';
55
56 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
57 if (os_strcasecmp(cmd, "EAPOL::heldPeriod") == 0) {
58 eapol_sm_configure(wpa_s->eapol,
59 atoi(value), -1, -1, -1);
60 } else if (os_strcasecmp(cmd, "EAPOL::authPeriod") == 0) {
61 eapol_sm_configure(wpa_s->eapol,
62 -1, atoi(value), -1, -1);
63 } else if (os_strcasecmp(cmd, "EAPOL::startPeriod") == 0) {
64 eapol_sm_configure(wpa_s->eapol,
65 -1, -1, atoi(value), -1);
66 } else if (os_strcasecmp(cmd, "EAPOL::maxStart") == 0) {
67 eapol_sm_configure(wpa_s->eapol,
68 -1, -1, -1, atoi(value));
69 } else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKLifetime") == 0) {
70 if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
71 atoi(value)))
72 ret = -1;
73 } else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKReauthThreshold") ==
74 0) {
75 if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
76 atoi(value)))
77 ret = -1;
78 } else if (os_strcasecmp(cmd, "dot11RSNAConfigSATimeout") == 0) {
79 if (wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, atoi(value)))
80 ret = -1;
81 } else
82 ret = -1;
83
84 return ret;
85}
86
87
ec717917 88#ifdef IEEE8021X_EAPOL
6fc6879b
JM		 89static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant *wpa_s,
90 char *addr)
91{
92 u8 bssid[ETH_ALEN];
93 struct wpa_ssid *ssid = wpa_s->current_ssid;
94
95 if (hwaddr_aton(addr, bssid)) {
96 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH: invalid address "
97 "'%s'", addr);
98 return -1;
99 }
100
101 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH " MACSTR, MAC2STR(bssid));
102 rsn_preauth_deinit(wpa_s->wpa);
103 if (rsn_preauth_init(wpa_s->wpa, bssid, ssid ? &ssid->eap : NULL))
104 return -1;
105
106 return 0;
107}
ec717917 108#endif /* IEEE8021X_EAPOL */
6fc6879b
JM		 109
110
111#ifdef CONFIG_PEERKEY
112/* MLME-STKSTART.request(peer) */
113static int wpa_supplicant_ctrl_iface_stkstart(
114 struct wpa_supplicant *wpa_s, char *addr)
115{
116 u8 peer[ETH_ALEN];
117
118 if (hwaddr_aton(addr, peer)) {
119 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART: invalid "
120 "address '%s'", peer);
121 return -1;
122 }
123
124 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART " MACSTR,
125 MAC2STR(peer));
126
127 return wpa_sm_stkstart(wpa_s->wpa, peer);
128}
129#endif /* CONFIG_PEERKEY */
130
131
132#ifdef CONFIG_IEEE80211R
133static int wpa_supplicant_ctrl_iface_ft_ds(
134 struct wpa_supplicant *wpa_s, char *addr)
135{
136 u8 target_ap[ETH_ALEN];
137
138 if (hwaddr_aton(addr, target_ap)) {
139 wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS: invalid "
140 "address '%s'", target_ap);
141 return -1;
142 }
143
144 wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS " MACSTR, MAC2STR(target_ap));
145
146 return wpa_ft_start_over_ds(wpa_s->wpa, target_ap);
147}
148#endif /* CONFIG_IEEE80211R */
149
150
fcc60db4
JM		 151#ifdef CONFIG_WPS
152static int wpa_supplicant_ctrl_iface_wps_pbc(struct wpa_supplicant *wpa_s,
153 char *cmd)
154{
3ec97afe 155 u8 bssid[ETH_ALEN], *_bssid = bssid;
fcc60db4
JM		 156
157 if (cmd == NULL || os_strcmp(cmd, "any") == 0)
3ec97afe
JM		 158 _bssid = NULL;
159 else if (hwaddr_aton(cmd, bssid)) {
fcc60db4
JM		 160 wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PBC: invalid BSSID '%s'",
161 cmd);
162 return -1;
163 }
164
3ec97afe
JM		 165#ifdef CONFIG_AP
166 if (wpa_s->ap_iface)
167 return wpa_supplicant_ap_wps_pbc(wpa_s, _bssid);
168#endif /* CONFIG_AP */
169
170 return wpas_wps_start_pbc(wpa_s, _bssid);
fcc60db4
JM		 171}
172
173
174static int wpa_supplicant_ctrl_iface_wps_pin(struct wpa_supplicant *wpa_s,
175 char *cmd, char *buf,
176 size_t buflen)
177{
178 u8 bssid[ETH_ALEN], *_bssid = bssid;
179 char *pin;
180 int ret;
181
182 pin = os_strchr(cmd, ' ');
183 if (pin)
184 *pin++ = '\0';
185
186 if (os_strcmp(cmd, "any") == 0)
187 _bssid = NULL;
188 else if (hwaddr_aton(cmd, bssid)) {
3c1e2765 189 wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PIN: invalid BSSID '%s'",
fcc60db4
JM		 190 cmd);
191 return -1;
192 }
193
3ec97afe
JM		 194#ifdef CONFIG_AP
195 if (wpa_s->ap_iface)
196 return wpa_supplicant_ap_wps_pin(wpa_s, _bssid, pin,
197 buf, buflen);
198#endif /* CONFIG_AP */
199
fcc60db4
JM		 200 if (pin) {
201 ret = wpas_wps_start_pin(wpa_s, _bssid, pin);
202 if (ret < 0)
203 return -1;
204 ret = os_snprintf(buf, buflen, "%s", pin);
205 if (ret < 0 || (size_t) ret >= buflen)
206 return -1;
207 return ret;
208 }
209
210 ret = wpas_wps_start_pin(wpa_s, _bssid, NULL);
211 if (ret < 0)
212 return -1;
213
214 /* Return the generated PIN */
215 ret = os_snprintf(buf, buflen, "%08d", ret);
216 if (ret < 0 || (size_t) ret >= buflen)
217 return -1;
218 return ret;
219}
220
221
116f7bb0 222#ifdef CONFIG_WPS_OOB
46bdb83a
MH		 223static int wpa_supplicant_ctrl_iface_wps_oob(struct wpa_supplicant *wpa_s,
224 char *cmd)
225{
e1ee6b60 226 char *path, *method, *name;
46bdb83a
MH		 227
228 path = os_strchr(cmd, ' ');
229 if (path == NULL)
230 return -1;
231 *path++ = '\0';
232
233 method = os_strchr(path, ' ');
234 if (method == NULL)
235 return -1;
236 *method++ = '\0';
237
e1ee6b60
MH		 238 name = os_strchr(method, ' ');
239 if (name != NULL)
240 *name++ = '\0';
241
242 return wpas_wps_start_oob(wpa_s, cmd, path, method, name);
46bdb83a 243}
116f7bb0 244#endif /* CONFIG_WPS_OOB */
46bdb83a
MH		 245
246
fcc60db4
JM		 247static int wpa_supplicant_ctrl_iface_wps_reg(struct wpa_supplicant *wpa_s,
248 char *cmd)
249{
250 u8 bssid[ETH_ALEN], *_bssid = bssid;
251 char *pin;
52eb293d
JM		 252 char *new_ssid;
253 char *new_auth;
254 char *new_encr;
255 char *new_key;
256 struct wps_new_ap_settings ap;
fcc60db4
JM		 257
258 pin = os_strchr(cmd, ' ');
259 if (pin == NULL)
260 return -1;
261 *pin++ = '\0';
262
263 if (os_strcmp(cmd, "any") == 0)
264 _bssid = NULL;
265 else if (hwaddr_aton(cmd, bssid)) {
266 wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_REG: invalid BSSID '%s'",
267 cmd);
268 return -1;
269 }
270
52eb293d
JM		 271 new_ssid = os_strchr(pin, ' ');
272 if (new_ssid == NULL)
273 return wpas_wps_start_reg(wpa_s, _bssid, pin, NULL);
274 *new_ssid++ = '\0';
275
276 new_auth = os_strchr(new_ssid, ' ');
277 if (new_auth == NULL)
278 return -1;
279 *new_auth++ = '\0';
280
281 new_encr = os_strchr(new_auth, ' ');
282 if (new_encr == NULL)
283 return -1;
284 *new_encr++ = '\0';
285
286 new_key = os_strchr(new_encr, ' ');
287 if (new_key == NULL)
288 return -1;
289 *new_key++ = '\0';
290
291 os_memset(&ap, 0, sizeof(ap));
292 ap.ssid_hex = new_ssid;
293 ap.auth = new_auth;
294 ap.encr = new_encr;
295 ap.key_hex = new_key;
296 return wpas_wps_start_reg(wpa_s, _bssid, pin, &ap);
fcc60db4 297}
72df2f5f
JM		 298
299
300#ifdef CONFIG_WPS_ER
301static int wpa_supplicant_ctrl_iface_wps_er_pin(struct wpa_supplicant *wpa_s,
302 char *cmd)
303{
304 char *uuid = cmd, *pin;
305 pin = os_strchr(uuid, ' ');
306 if (pin == NULL)
307 return -1;
308 *pin++ = '\0';
309 return wpas_wps_er_add_pin(wpa_s, uuid, pin);
310}
e64dcfd5
JM		 311
312
313static int wpa_supplicant_ctrl_iface_wps_er_learn(struct wpa_supplicant *wpa_s,
314 char *cmd)
315{
316 char *uuid = cmd, *pin;
317 pin = os_strchr(uuid, ' ');
318 if (pin == NULL)
319 return -1;
320 *pin++ = '\0';
321 return wpas_wps_er_learn(wpa_s, uuid, pin);
322}
72df2f5f
JM		 323#endif /* CONFIG_WPS_ER */
324
fcc60db4
JM		 325#endif /* CONFIG_WPS */
326
327
11ef8d35
JM		 328#ifdef CONFIG_IBSS_RSN
329static int wpa_supplicant_ctrl_iface_ibss_rsn(
330 struct wpa_supplicant *wpa_s, char *addr)
331{
332 u8 peer[ETH_ALEN];
333
334 if (hwaddr_aton(addr, peer)) {
335 wpa_printf(MSG_DEBUG, "CTRL_IFACE IBSS_RSN: invalid "
336 "address '%s'", peer);
337 return -1;
338 }
339
340 wpa_printf(MSG_DEBUG, "CTRL_IFACE IBSS_RSN " MACSTR,
341 MAC2STR(peer));
342
343 return ibss_rsn_start(wpa_s->ibss_rsn, peer);
344}
345#endif /* CONFIG_IBSS_RSN */
346
347
6fc6879b
JM		 348static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant *wpa_s,
349 char *rsp)
350{
351#ifdef IEEE8021X_EAPOL
352 char *pos, *id_pos;
353 int id;
354 struct wpa_ssid *ssid;
355 struct eap_peer_config *eap;
356
357 pos = os_strchr(rsp, '-');
358 if (pos == NULL)
359 return -1;
360 *pos++ = '\0';
361 id_pos = pos;
362 pos = os_strchr(pos, ':');
363 if (pos == NULL)
364 return -1;
365 *pos++ = '\0';
366 id = atoi(id_pos);
367 wpa_printf(MSG_DEBUG, "CTRL_IFACE: field=%s id=%d", rsp, id);
368 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
369 (u8 *) pos, os_strlen(pos));
370
371 ssid = wpa_config_get_network(wpa_s->conf, id);
372 if (ssid == NULL) {
373 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
374 "to update", id);
375 return -1;
376 }
377 eap = &ssid->eap;
378
379 if (os_strcmp(rsp, "IDENTITY") == 0) {
380 os_free(eap->identity);
381 eap->identity = (u8 *) os_strdup(pos);
382 eap->identity_len = os_strlen(pos);
383 eap->pending_req_identity = 0;
384 if (ssid == wpa_s->current_ssid)
385 wpa_s->reassociate = 1;
386 } else if (os_strcmp(rsp, "PASSWORD") == 0) {
387 os_free(eap->password);
388 eap->password = (u8 *) os_strdup(pos);
389 eap->password_len = os_strlen(pos);
390 eap->pending_req_password = 0;
391 if (ssid == wpa_s->current_ssid)
392 wpa_s->reassociate = 1;
393 } else if (os_strcmp(rsp, "NEW_PASSWORD") == 0) {
394 os_free(eap->new_password);
395 eap->new_password = (u8 *) os_strdup(pos);
396 eap->new_password_len = os_strlen(pos);
397 eap->pending_req_new_password = 0;
398 if (ssid == wpa_s->current_ssid)
399 wpa_s->reassociate = 1;
400 } else if (os_strcmp(rsp, "PIN") == 0) {
401 os_free(eap->pin);
402 eap->pin = os_strdup(pos);
403 eap->pending_req_pin = 0;
404 if (ssid == wpa_s->current_ssid)
405 wpa_s->reassociate = 1;
406 } else if (os_strcmp(rsp, "OTP") == 0) {
407 os_free(eap->otp);
408 eap->otp = (u8 *) os_strdup(pos);
409 eap->otp_len = os_strlen(pos);
410 os_free(eap->pending_req_otp);
411 eap->pending_req_otp = NULL;
412 eap->pending_req_otp_len = 0;
413 } else if (os_strcmp(rsp, "PASSPHRASE") == 0) {
414 os_free(eap->private_key_passwd);
415 eap->private_key_passwd = (u8 *) os_strdup(pos);
416 eap->pending_req_passphrase = 0;
417 if (ssid == wpa_s->current_ssid)
418 wpa_s->reassociate = 1;
419 } else {
420 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", rsp);
421 return -1;
422 }
423
424 return 0;
425#else /* IEEE8021X_EAPOL */
426 wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included");
427 return -1;
428#endif /* IEEE8021X_EAPOL */
429}
430
431
432static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
433 const char *params,
434 char *buf, size_t buflen)
435{
436 char *pos, *end, tmp[30];
437 int res, verbose, ret;
438
439 verbose = os_strcmp(params, "-VERBOSE") == 0;
440 pos = buf;
441 end = buf + buflen;
442 if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
443 struct wpa_ssid *ssid = wpa_s->current_ssid;
444 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n",
445 MAC2STR(wpa_s->bssid));
446 if (ret < 0 || ret >= end - pos)
447 return pos - buf;
448 pos += ret;
449 if (ssid) {
450 u8 *_ssid = ssid->ssid;
451 size_t ssid_len = ssid->ssid_len;
452 u8 ssid_buf[MAX_SSID_LEN];
453 if (ssid_len == 0) {
454 int _res = wpa_drv_get_ssid(wpa_s, ssid_buf);
455 if (_res < 0)
456 ssid_len = 0;
457 else
458 ssid_len = _res;
459 _ssid = ssid_buf;
460 }
461 ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n",
462 wpa_ssid_txt(_ssid, ssid_len),
463 ssid->id);
464 if (ret < 0 || ret >= end - pos)
465 return pos - buf;
466 pos += ret;
467
468 if (ssid->id_str) {
469 ret = os_snprintf(pos, end - pos,
470 "id_str=%s\n",
471 ssid->id_str);
472 if (ret < 0 || ret >= end - pos)
473 return pos - buf;
474 pos += ret;
475 }
476 }
477
43fb5297
JM		 478#ifdef CONFIG_AP
479 if (wpa_s->ap_iface) {
480 pos += ap_ctrl_iface_wpa_get_status(wpa_s, pos,
481 end - pos,
482 verbose);
483 } else
484#endif /* CONFIG_AP */
6fc6879b
JM		 485 pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose);
486 }
487 ret = os_snprintf(pos, end - pos, "wpa_state=%s\n",
488 wpa_supplicant_state_txt(wpa_s->wpa_state));
489 if (ret < 0 || ret >= end - pos)
490 return pos - buf;
491 pos += ret;
492
493 if (wpa_s->l2 &&
494 l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) {
495 ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp);
496 if (ret < 0 || ret >= end - pos)
497 return pos - buf;
498 pos += ret;
499 }
500
56586197
JM		 501 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
502 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
6fc6879b
JM		 503 res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos,
504 verbose);
505 if (res >= 0)
506 pos += res;
507 }
508
509 res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose);
510 if (res >= 0)
511 pos += res;
512
513 return pos - buf;
514}
515
516
517static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant *wpa_s,
518 char *cmd)
519{
520 char *pos;
521 int id;
522 struct wpa_ssid *ssid;
523 u8 bssid[ETH_ALEN];
524
525 /* cmd: "<network id> <BSSID>" */
526 pos = os_strchr(cmd, ' ');
527 if (pos == NULL)
528 return -1;
529 *pos++ = '\0';
530 id = atoi(cmd);
531 wpa_printf(MSG_DEBUG, "CTRL_IFACE: id=%d bssid='%s'", id, pos);
532 if (hwaddr_aton(pos, bssid)) {
533 wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", pos);
534 return -1;
535 }
536
537 ssid = wpa_config_get_network(wpa_s->conf, id);
538 if (ssid == NULL) {
539 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
540 "to update", id);
541 return -1;
542 }
543
544 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
a8e16edc 545 ssid->bssid_set = !is_zero_ether_addr(bssid);
6fc6879b
JM		 546
547 return 0;
548}
549
550
551static int wpa_supplicant_ctrl_iface_list_networks(
552 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
553{
554 char *pos, *end;
555 struct wpa_ssid *ssid;
556 int ret;
557
558 pos = buf;
559 end = buf + buflen;
560 ret = os_snprintf(pos, end - pos,
561 "network id / ssid / bssid / flags\n");
562 if (ret < 0 || ret >= end - pos)
563 return pos - buf;
564 pos += ret;
565
566 ssid = wpa_s->conf->ssid;
567 while (ssid) {
568 ret = os_snprintf(pos, end - pos, "%d\t%s",
569 ssid->id,
570 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
571 if (ret < 0 || ret >= end - pos)
572 return pos - buf;
573 pos += ret;
574 if (ssid->bssid_set) {
575 ret = os_snprintf(pos, end - pos, "\t" MACSTR,
576 MAC2STR(ssid->bssid));
577 } else {
578 ret = os_snprintf(pos, end - pos, "\tany");
579 }
580 if (ret < 0 || ret >= end - pos)
581 return pos - buf;
582 pos += ret;
583 ret = os_snprintf(pos, end - pos, "\t%s%s",
584 ssid == wpa_s->current_ssid ?
585 "[CURRENT]" : "",
586 ssid->disabled ? "[DISABLED]" : "");
587 if (ret < 0 || ret >= end - pos)
588 return pos - buf;
589 pos += ret;
590 ret = os_snprintf(pos, end - pos, "\n");
591 if (ret < 0 || ret >= end - pos)
592 return pos - buf;
593 pos += ret;
594
595 ssid = ssid->next;
596 }
597
598 return pos - buf;
599}
600
601
602static char * wpa_supplicant_cipher_txt(char *pos, char *end, int cipher)
603{
604 int first = 1, ret;
605 ret = os_snprintf(pos, end - pos, "-");
606 if (ret < 0 || ret >= end - pos)
607 return pos;
608 pos += ret;
609 if (cipher & WPA_CIPHER_NONE) {
610 ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : "+");
611 if (ret < 0 || ret >= end - pos)
612 return pos;
613 pos += ret;
614 first = 0;
615 }
616 if (cipher & WPA_CIPHER_WEP40) {
617 ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : "+");
618 if (ret < 0 || ret >= end - pos)
619 return pos;
620 pos += ret;
621 first = 0;
622 }
623 if (cipher & WPA_CIPHER_WEP104) {
624 ret = os_snprintf(pos, end - pos, "%sWEP104",
625 first ? "" : "+");
626 if (ret < 0 || ret >= end - pos)
627 return pos;
628 pos += ret;
629 first = 0;
630 }
631 if (cipher & WPA_CIPHER_TKIP) {
632 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : "+");
633 if (ret < 0 || ret >= end - pos)
634 return pos;
635 pos += ret;
636 first = 0;
637 }
638 if (cipher & WPA_CIPHER_CCMP) {
639 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : "+");
640 if (ret < 0 || ret >= end - pos)
641 return pos;
642 pos += ret;
643 first = 0;
644 }
645 return pos;
646}
647
648
649static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto,
650 const u8 *ie, size_t ie_len)
651{
652 struct wpa_ie_data data;
653 int first, ret;
654
655 ret = os_snprintf(pos, end - pos, "[%s-", proto);
656 if (ret < 0 || ret >= end - pos)
657 return pos;
658 pos += ret;
659
660 if (wpa_parse_wpa_ie(ie, ie_len, &data) < 0) {
661 ret = os_snprintf(pos, end - pos, "?]");
662 if (ret < 0 || ret >= end - pos)
663 return pos;
664 pos += ret;
665 return pos;
666 }
667
668 first = 1;
669 if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
670 ret = os_snprintf(pos, end - pos, "%sEAP", first ? "" : "+");
671 if (ret < 0 || ret >= end - pos)
672 return pos;
673 pos += ret;
674 first = 0;
675 }
676 if (data.key_mgmt & WPA_KEY_MGMT_PSK) {
677 ret = os_snprintf(pos, end - pos, "%sPSK", first ? "" : "+");
678 if (ret < 0 || ret >= end - pos)
679 return pos;
680 pos += ret;
681 first = 0;
682 }
683 if (data.key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
684 ret = os_snprintf(pos, end - pos, "%sNone", first ? "" : "+");
685 if (ret < 0 || ret >= end - pos)
686 return pos;
687 pos += ret;
688 first = 0;
689 }
690#ifdef CONFIG_IEEE80211R
691 if (data.key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
692 ret = os_snprintf(pos, end - pos, "%sFT/EAP",
693 first ? "" : "+");
694 if (ret < 0 || ret >= end - pos)
695 return pos;
696 pos += ret;
697 first = 0;
698 }
699 if (data.key_mgmt & WPA_KEY_MGMT_FT_PSK) {
700 ret = os_snprintf(pos, end - pos, "%sFT/PSK",
701 first ? "" : "+");
702 if (ret < 0 || ret >= end - pos)
703 return pos;
704 pos += ret;
705 first = 0;
706 }
707#endif /* CONFIG_IEEE80211R */
56586197
JM		 708#ifdef CONFIG_IEEE80211W
709 if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
710 ret = os_snprintf(pos, end - pos, "%sEAP-SHA256",
711 first ? "" : "+");
712 if (ret < 0 || ret >= end - pos)
713 return pos;
714 pos += ret;
715 first = 0;
716 }
717 if (data.key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
718 ret = os_snprintf(pos, end - pos, "%sPSK-SHA256",
719 first ? "" : "+");
720 if (ret < 0 || ret >= end - pos)
721 return pos;
722 pos += ret;
723 first = 0;
724 }
725#endif /* CONFIG_IEEE80211W */
6fc6879b
JM		 726
727 pos = wpa_supplicant_cipher_txt(pos, end, data.pairwise_cipher);
728
729 if (data.capabilities & WPA_CAPABILITY_PREAUTH) {
730 ret = os_snprintf(pos, end - pos, "-preauth");
731 if (ret < 0 || ret >= end - pos)
732 return pos;
733 pos += ret;
734 }
735
736 ret = os_snprintf(pos, end - pos, "]");
737 if (ret < 0 || ret >= end - pos)
738 return pos;
739 pos += ret;
740
741 return pos;
742}
743
eef7d7a1
JM		 744static char * wpa_supplicant_wps_ie_txt(char *pos, char *end,
745 const struct wpa_scan_res *res)
746{
747#ifdef CONFIG_WPS
748 struct wpabuf *wps_ie;
749 int ret;
750 const char *txt;
751
752 wps_ie = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
753 if (wps_ie == NULL)
754 return pos;
755
756 if (wps_is_selected_pbc_registrar(wps_ie))
757 txt = "[WPS-PBC]";
758 else if (wps_is_selected_pin_registrar(wps_ie))
759 txt = "[WPS-PIN]";
760 else
761 txt = "[WPS]";
762
763 ret = os_snprintf(pos, end - pos, "%s", txt);
764 if (ret >= 0 && ret < end - pos)
765 pos += ret;
766 wpabuf_free(wps_ie);
767#endif /* CONFIG_WPS */
768
769 return pos;
770}
771
6fc6879b
JM		 772
773/* Format one result on one text line into a buffer. */
774static int wpa_supplicant_ctrl_iface_scan_result(
775 const struct wpa_scan_res *res, char *buf, size_t buflen)
776{
777 char *pos, *end;
778 int ret;
779 const u8 *ie, *ie2;
780
781 pos = buf;
782 end = buf + buflen;
783
784 ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
785 MAC2STR(res->bssid), res->freq, res->level);
786 if (ret < 0 || ret >= end - pos)
787 return pos - buf;
788 pos += ret;
789 ie = wpa_scan_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
790 if (ie)
791 pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
792 ie2 = wpa_scan_get_ie(res, WLAN_EID_RSN);
793 if (ie2)
794 pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
eef7d7a1 795 pos = wpa_supplicant_wps_ie_txt(pos, end, res);
6fc6879b
JM		 796 if (!ie && !ie2 && res->caps & IEEE80211_CAP_PRIVACY) {
797 ret = os_snprintf(pos, end - pos, "[WEP]");
798 if (ret < 0 || ret >= end - pos)
799 return pos - buf;
800 pos += ret;
801 }
802 if (res->caps & IEEE80211_CAP_IBSS) {
803 ret = os_snprintf(pos, end - pos, "[IBSS]");
804 if (ret < 0 || ret >= end - pos)
805 return pos - buf;
806 pos += ret;
807 }
808
809 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
810 ret = os_snprintf(pos, end - pos, "\t%s",
811 ie ? wpa_ssid_txt(ie + 2, ie[1]) : "");
812 if (ret < 0 || ret >= end - pos)
813 return pos - buf;
814 pos += ret;
815
816 ret = os_snprintf(pos, end - pos, "\n");
817 if (ret < 0 || ret >= end - pos)
818 return pos - buf;
819 pos += ret;
820
821 return pos - buf;
822}
823
824
825static int wpa_supplicant_ctrl_iface_scan_results(
826 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
827{
828 char *pos, *end;
829 struct wpa_scan_res *res;
830 int ret;
831 size_t i;
832
833 if (wpa_s->scan_res == NULL &&
834 wpa_supplicant_get_scan_results(wpa_s) < 0)
835 return 0;
836
837 pos = buf;
838 end = buf + buflen;
839 ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / "
840 "flags / ssid\n");
841 if (ret < 0 || ret >= end - pos)
842 return pos - buf;
843 pos += ret;
844
845 for (i = 0; i < wpa_s->scan_res->num; i++) {
846 res = wpa_s->scan_res->res[i];
847 ret = wpa_supplicant_ctrl_iface_scan_result(res, pos,
848 end - pos);
849 if (ret < 0 || ret >= end - pos)
850 return pos - buf;
851 pos += ret;
852 }
853
854 return pos - buf;
855}
856
857
858static int wpa_supplicant_ctrl_iface_select_network(
859 struct wpa_supplicant *wpa_s, char *cmd)
860{
861 int id;
862 struct wpa_ssid *ssid;
863
864 /* cmd: "<network id>" or "any" */
865 if (os_strcmp(cmd, "any") == 0) {
866 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK any");
86b89452
WS		 867 ssid = NULL;
868 } else {
869 id = atoi(cmd);
870 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK id=%d", id);
6fc6879b 871
86b89452
WS		 872 ssid = wpa_config_get_network(wpa_s->conf, id);
873 if (ssid == NULL) {
874 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
875 "network id=%d", id);
876 return -1;
877 }
6fc6879b
JM		 878 }
879
86b89452 880 wpa_supplicant_select_network(wpa_s, ssid);
6fc6879b
JM		 881
882 return 0;
883}
884
885
886static int wpa_supplicant_ctrl_iface_enable_network(
887 struct wpa_supplicant *wpa_s, char *cmd)
888{
889 int id;
890 struct wpa_ssid *ssid;
891
892 /* cmd: "<network id>" or "all" */
893 if (os_strcmp(cmd, "all") == 0) {
894 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK all");
86b89452
WS		 895 ssid = NULL;
896 } else {
897 id = atoi(cmd);
898 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK id=%d", id);
6fc6879b 899
86b89452
WS		 900 ssid = wpa_config_get_network(wpa_s->conf, id);
901 if (ssid == NULL) {
902 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
903 "network id=%d", id);
904 return -1;
905 }
6fc6879b 906 }
86b89452 907 wpa_supplicant_enable_network(wpa_s, ssid);
6fc6879b
JM		 908
909 return 0;
910}
911
912
913static int wpa_supplicant_ctrl_iface_disable_network(
914 struct wpa_supplicant *wpa_s, char *cmd)
915{
916 int id;
917 struct wpa_ssid *ssid;
918
919 /* cmd: "<network id>" or "all" */
920 if (os_strcmp(cmd, "all") == 0) {
921 wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK all");
86b89452
WS		 922 ssid = NULL;
923 } else {
924 id = atoi(cmd);
925 wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK id=%d", id);
6fc6879b 926
86b89452
WS		 927 ssid = wpa_config_get_network(wpa_s->conf, id);
928 if (ssid == NULL) {
929 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
930 "network id=%d", id);
931 return -1;
932 }
6fc6879b 933 }
86b89452 934 wpa_supplicant_disable_network(wpa_s, ssid);
6fc6879b
JM		 935
936 return 0;
937}
938
939
940static int wpa_supplicant_ctrl_iface_add_network(
941 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
942{
943 struct wpa_ssid *ssid;
944 int ret;
945
946 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ADD_NETWORK");
947
948 ssid = wpa_config_add_network(wpa_s->conf);
949 if (ssid == NULL)
950 return -1;
8bac466b
JM		 951
952 wpas_notify_network_added(wpa_s, ssid);
953
6fc6879b
JM		 954 ssid->disabled = 1;
955 wpa_config_set_network_defaults(ssid);
956
957 ret = os_snprintf(buf, buflen, "%d\n", ssid->id);
958 if (ret < 0 || (size_t) ret >= buflen)
959 return -1;
960 return ret;
961}
962
963
964static int wpa_supplicant_ctrl_iface_remove_network(
965 struct wpa_supplicant *wpa_s, char *cmd)
966{
967 int id;
968 struct wpa_ssid *ssid;
969
970 /* cmd: "<network id>" or "all" */
971 if (os_strcmp(cmd, "all") == 0) {
972 wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK all");
973 ssid = wpa_s->conf->ssid;
974 while (ssid) {
8bac466b 975 struct wpa_ssid *remove_ssid = ssid;
6fc6879b
JM		 976 id = ssid->id;
977 ssid = ssid->next;
8bac466b 978 wpas_notify_network_removed(wpa_s, remove_ssid);
6fc6879b
JM		 979 wpa_config_remove_network(wpa_s->conf, id);
980 }
981 if (wpa_s->current_ssid) {
982 eapol_sm_invalidate_cached_session(wpa_s->eapol);
983 wpa_supplicant_disassociate(wpa_s,
984 WLAN_REASON_DEAUTH_LEAVING);
985 }
986 return 0;
987 }
988
989 id = atoi(cmd);
990 wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK id=%d", id);
991
992 ssid = wpa_config_get_network(wpa_s->conf, id);
993 if (ssid == NULL ||
994 wpa_config_remove_network(wpa_s->conf, id) < 0) {
995 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
996 "id=%d", id);
997 return -1;
998 }
999
1000 if (ssid == wpa_s->current_ssid) {
1001 /*
1002 * Invalidate the EAP session cache if the current network is
1003 * removed.
1004 */
1005 eapol_sm_invalidate_cached_session(wpa_s->eapol);
1006
1007 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1008 }
1009
1010 return 0;
1011}
1012
1013
1014static int wpa_supplicant_ctrl_iface_set_network(
1015 struct wpa_supplicant *wpa_s, char *cmd)
1016{
1017 int id;
1018 struct wpa_ssid *ssid;
1019 char *name, *value;
1020
1021 /* cmd: "<network id> <variable name> <value>" */
1022 name = os_strchr(cmd, ' ');
1023 if (name == NULL)
1024 return -1;
1025 *name++ = '\0';
1026
1027 value = os_strchr(name, ' ');
1028 if (value == NULL)
1029 return -1;
1030 *value++ = '\0';
1031
1032 id = atoi(cmd);
1033 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SET_NETWORK id=%d name='%s'",
1034 id, name);
1035 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
1036 (u8 *) value, os_strlen(value));
1037
1038 ssid = wpa_config_get_network(wpa_s->conf, id);
1039 if (ssid == NULL) {
1040 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
1041 "id=%d", id);
1042 return -1;
1043 }
1044
1045 if (wpa_config_set(ssid, name, value, 0) < 0) {
1046 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to set network "
1047 "variable '%s'", name);
1048 return -1;
1049 }
1050
1051 if (wpa_s->current_ssid == ssid) {
1052 /*
1053 * Invalidate the EAP session cache if anything in the current
1054 * configuration changes.
1055 */
1056 eapol_sm_invalidate_cached_session(wpa_s->eapol);
1057 }
1058
1059 if ((os_strcmp(name, "psk") == 0 &&
1060 value[0] == '"' && ssid->ssid_len) ||
1061 (os_strcmp(name, "ssid") == 0 && ssid->passphrase))
1062 wpa_config_update_psk(ssid);
1063
1064 return 0;
1065}
1066
1067
1068static int wpa_supplicant_ctrl_iface_get_network(
1069 struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen)
1070{
1071 int id;
1072 size_t res;
1073 struct wpa_ssid *ssid;
1074 char *name, *value;
1075
1076 /* cmd: "<network id> <variable name>" */
1077 name = os_strchr(cmd, ' ');
1078 if (name == NULL || buflen == 0)
1079 return -1;
1080 *name++ = '\0';
1081
1082 id = atoi(cmd);
1083 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_NETWORK id=%d name='%s'",
1084 id, name);
1085
1086 ssid = wpa_config_get_network(wpa_s->conf, id);
1087 if (ssid == NULL) {
1088 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
1089 "id=%d", id);
1090 return -1;
1091 }
1092
1093 value = wpa_config_get_no_key(ssid, name);
1094 if (value == NULL) {
1095 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to get network "
1096 "variable '%s'", name);
1097 return -1;
1098 }
1099
1100 res = os_strlcpy(buf, value, buflen);
1101 if (res >= buflen) {
1102 os_free(value);
1103 return -1;
1104 }
1105
1106 os_free(value);
1107
1108 return res;
1109}
1110
1111
1112#ifndef CONFIG_NO_CONFIG_WRITE
1113static int wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant *wpa_s)
1114{
1115 int ret;
1116
1117 if (!wpa_s->conf->update_config) {
1118 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Not allowed "
1119 "to update configuration (update_config=0)");
1120 return -1;
1121 }
1122
1123 ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
1124 if (ret) {
1125 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Failed to "
1126 "update configuration");
1127 } else {
1128 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Configuration"
1129 " updated");
1130 }
1131
1132 return ret;
1133}
1134#endif /* CONFIG_NO_CONFIG_WRITE */
1135
1136
1137static int ctrl_iface_get_capability_pairwise(int res, char *strict,
1138 struct wpa_driver_capa *capa,
1139 char *buf, size_t buflen)
1140{
1141 int ret, first = 1;
1142 char *pos, *end;
1143 size_t len;
1144
1145 pos = buf;
1146 end = pos + buflen;
1147
1148 if (res < 0) {
1149 if (strict)
1150 return 0;
1151 len = os_strlcpy(buf, "CCMP TKIP NONE", buflen);
1152 if (len >= buflen)
1153 return -1;
1154 return len;
1155 }
1156
1157 if (capa->enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1158 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : " ");
1159 if (ret < 0 || ret >= end - pos)
1160 return pos - buf;
1161 pos += ret;
1162 first = 0;
1163 }
1164
1165 if (capa->enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1166 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : " ");
1167 if (ret < 0 || ret >= end - pos)
1168 return pos - buf;
1169 pos += ret;
1170 first = 0;
1171 }
1172
1173 if (capa->key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1174 ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : " ");
1175 if (ret < 0 || ret >= end - pos)
1176 return pos - buf;
1177 pos += ret;
1178 first = 0;
1179 }
1180
1181 return pos - buf;
1182}
1183
1184
1185static int ctrl_iface_get_capability_group(int res, char *strict,
1186 struct wpa_driver_capa *capa,
1187 char *buf, size_t buflen)
1188{
1189 int ret, first = 1;
1190 char *pos, *end;
1191 size_t len;
1192
1193 pos = buf;
1194 end = pos + buflen;
1195
1196 if (res < 0) {
1197 if (strict)
1198 return 0;
1199 len = os_strlcpy(buf, "CCMP TKIP WEP104 WEP40", buflen);
1200 if (len >= buflen)
1201 return -1;
1202 return len;
1203 }
1204
1205 if (capa->enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1206 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : " ");
1207 if (ret < 0 || ret >= end - pos)
1208 return pos - buf;
1209 pos += ret;
1210 first = 0;
1211 }
1212
1213 if (capa->enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1214 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : " ");
1215 if (ret < 0 || ret >= end - pos)
1216 return pos - buf;
1217 pos += ret;
1218 first = 0;
1219 }
1220
1221 if (capa->enc & WPA_DRIVER_CAPA_ENC_WEP104) {
1222 ret = os_snprintf(pos, end - pos, "%sWEP104",
1223 first ? "" : " ");
1224 if (ret < 0 || ret >= end - pos)
1225 return pos - buf;
1226 pos += ret;
1227 first = 0;
1228 }
1229
1230 if (capa->enc & WPA_DRIVER_CAPA_ENC_WEP40) {
1231 ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : " ");
1232 if (ret < 0 || ret >= end - pos)
1233 return pos - buf;
1234 pos += ret;
1235 first = 0;
1236 }
1237
1238 return pos - buf;
1239}
1240
1241
1242static int ctrl_iface_get_capability_key_mgmt(int res, char *strict,
1243 struct wpa_driver_capa *capa,
1244 char *buf, size_t buflen)
1245{
1246 int ret;
1247 char *pos, *end;
1248 size_t len;
1249
1250 pos = buf;
1251 end = pos + buflen;
1252
1253 if (res < 0) {
1254 if (strict)
1255 return 0;
1256 len = os_strlcpy(buf, "WPA-PSK WPA-EAP IEEE8021X WPA-NONE "
1257 "NONE", buflen);
1258 if (len >= buflen)
1259 return -1;
1260 return len;
1261 }
1262
1263 ret = os_snprintf(pos, end - pos, "NONE IEEE8021X");
1264 if (ret < 0 || ret >= end - pos)
1265 return pos - buf;
1266 pos += ret;
1267
1268 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1269 WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
1270 ret = os_snprintf(pos, end - pos, " WPA-EAP");
1271 if (ret < 0 || ret >= end - pos)
1272 return pos - buf;
1273 pos += ret;
1274 }
1275
1276 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1277 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1278 ret = os_snprintf(pos, end - pos, " WPA-PSK");
1279 if (ret < 0 || ret >= end - pos)
1280 return pos - buf;
1281 pos += ret;
1282 }
1283
1284 if (capa->key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1285 ret = os_snprintf(pos, end - pos, " WPA-NONE");
1286 if (ret < 0 || ret >= end - pos)
1287 return pos - buf;
1288 pos += ret;
1289 }
1290
1291 return pos - buf;
1292}
1293
1294
1295static int ctrl_iface_get_capability_proto(int res, char *strict,
1296 struct wpa_driver_capa *capa,
1297 char *buf, size_t buflen)
1298{
1299 int ret, first = 1;
1300 char *pos, *end;
1301 size_t len;
1302
1303 pos = buf;
1304 end = pos + buflen;
1305
1306 if (res < 0) {
1307 if (strict)
1308 return 0;
1309 len = os_strlcpy(buf, "RSN WPA", buflen);
1310 if (len >= buflen)
1311 return -1;
1312 return len;
1313 }
1314
1315 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1316 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1317 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " ");
1318 if (ret < 0 || ret >= end - pos)
1319 return pos - buf;
1320 pos += ret;
1321 first = 0;
1322 }
1323
1324 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1325 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
1326 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " ");
1327 if (ret < 0 || ret >= end - pos)
1328 return pos - buf;
1329 pos += ret;
1330 first = 0;
1331 }
1332
1333 return pos - buf;
1334}
1335
1336
1337static int ctrl_iface_get_capability_auth_alg(int res, char *strict,
1338 struct wpa_driver_capa *capa,
1339 char *buf, size_t buflen)
1340{
1341 int ret, first = 1;
1342 char *pos, *end;
1343 size_t len;
1344
1345 pos = buf;
1346 end = pos + buflen;
1347
1348 if (res < 0) {
1349 if (strict)
1350 return 0;
1351 len = os_strlcpy(buf, "OPEN SHARED LEAP", buflen);
1352 if (len >= buflen)
1353 return -1;
1354 return len;
1355 }
1356
1357 if (capa->auth & (WPA_DRIVER_AUTH_OPEN)) {
1358 ret = os_snprintf(pos, end - pos, "%sOPEN", first ? "" : " ");
1359 if (ret < 0 || ret >= end - pos)
1360 return pos - buf;
1361 pos += ret;
1362 first = 0;
1363 }
1364
1365 if (capa->auth & (WPA_DRIVER_AUTH_SHARED)) {
1366 ret = os_snprintf(pos, end - pos, "%sSHARED",
1367 first ? "" : " ");
1368 if (ret < 0 || ret >= end - pos)
1369 return pos - buf;
1370 pos += ret;
1371 first = 0;
1372 }
1373
1374 if (capa->auth & (WPA_DRIVER_AUTH_LEAP)) {
1375 ret = os_snprintf(pos, end - pos, "%sLEAP", first ? "" : " ");
1376 if (ret < 0 || ret >= end - pos)
1377 return pos - buf;
1378 pos += ret;
1379 first = 0;
1380 }
1381
1382 return pos - buf;
1383}
1384
1385
1386static int wpa_supplicant_ctrl_iface_get_capability(
1387 struct wpa_supplicant *wpa_s, const char *_field, char *buf,
1388 size_t buflen)
1389{
1390 struct wpa_driver_capa capa;
1391 int res;
1392 char *strict;
1393 char field[30];
1394 size_t len;
1395
1396 /* Determine whether or not strict checking was requested */
1397 len = os_strlcpy(field, _field, sizeof(field));
1398 if (len >= sizeof(field))
1399 return -1;
1400 strict = os_strchr(field, ' ');
1401 if (strict != NULL) {
1402 *strict++ = '\0';
1403 if (os_strcmp(strict, "strict") != 0)
1404 return -1;
1405 }
1406
1407 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
1408 field, strict ? strict : "");
1409
1410 if (os_strcmp(field, "eap") == 0) {
1411 return eap_get_names(buf, buflen);
1412 }
1413
1414 res = wpa_drv_get_capa(wpa_s, &capa);
1415
1416 if (os_strcmp(field, "pairwise") == 0)
1417 return ctrl_iface_get_capability_pairwise(res, strict, &capa,
1418 buf, buflen);
1419
1420 if (os_strcmp(field, "group") == 0)
1421 return ctrl_iface_get_capability_group(res, strict, &capa,
1422 buf, buflen);
1423
1424 if (os_strcmp(field, "key_mgmt") == 0)
1425 return ctrl_iface_get_capability_key_mgmt(res, strict, &capa,
1426 buf, buflen);
1427
1428 if (os_strcmp(field, "proto") == 0)
1429 return ctrl_iface_get_capability_proto(res, strict, &capa,
1430 buf, buflen);
1431
1432 if (os_strcmp(field, "auth_alg") == 0)
1433 return ctrl_iface_get_capability_auth_alg(res, strict, &capa,
1434 buf, buflen);
1435
1436 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
1437 field);
1438
1439 return -1;
1440}
1441
1442
1443static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
1444 const char *cmd, char *buf,
1445 size_t buflen)
1446{
1447 u8 bssid[ETH_ALEN];
1448 size_t i;
1449 struct wpa_scan_results *results;
1450 struct wpa_scan_res *bss;
1451 int ret;
1452 char *pos, *end;
1453 const u8 *ie, *ie2;
1454
e3e51d9f
JM		 1455 if (wpa_s->scan_res == NULL &&
1456 wpa_supplicant_get_scan_results(wpa_s) < 0)
1457 return 0;
1458
6fc6879b
JM		 1459 results = wpa_s->scan_res;
1460 if (results == NULL)
1461 return 0;
1462
1463 if (hwaddr_aton(cmd, bssid) == 0) {
1464 for (i = 0; i < results->num; i++) {
1465 if (os_memcmp(bssid, results->res[i]->bssid, ETH_ALEN)
1466 == 0)
1467 break;
1468 }
1469 } else
1470 i = atoi(cmd);
1471
1472 if (i >= results->num || results->res[i] == NULL)
1473 return 0; /* no match found */
1474
1475 bss = results->res[i];
1476 pos = buf;
1477 end = buf + buflen;
3fd0b8f1
JM		 1478 ret = os_snprintf(pos, end - pos,
1479 "bssid=" MACSTR "\n"
1480 "freq=%d\n"
1481 "beacon_int=%d\n"
1482 "capabilities=0x%04x\n"
1483 "qual=%d\n"
1484 "noise=%d\n"
1485 "level=%d\n"
1486 "tsf=%016llu\n"
1487 "ie=",
1488 MAC2STR(bss->bssid), bss->freq, bss->beacon_int,
1489 bss->caps, bss->qual, bss->noise, bss->level,
1490 (unsigned long long) bss->tsf);
6fc6879b
JM		 1491 if (ret < 0 || ret >= end - pos)
1492 return pos - buf;
1493 pos += ret;
1494
1495 ie = (const u8 *) (bss + 1);
1496 for (i = 0; i < bss->ie_len; i++) {
3fd0b8f1 1497 ret = os_snprintf(pos, end - pos, "%02x", *ie++);
6fc6879b
JM		 1498 if (ret < 0 || ret >= end - pos)
1499 return pos - buf;
1500 pos += ret;
1501 }
1502
3fd0b8f1 1503 ret = os_snprintf(pos, end - pos, "\n");
6fc6879b
JM		 1504 if (ret < 0 || ret >= end - pos)
1505 return pos - buf;
1506 pos += ret;
1507
1508 ret = os_snprintf(pos, end - pos, "flags=");
1509 if (ret < 0 || ret >= end - pos)
1510 return pos - buf;
1511 pos += ret;
1512
1513 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1514 if (ie)
1515 pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
1516 ie2 = wpa_scan_get_ie(bss, WLAN_EID_RSN);
1517 if (ie2)
1518 pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
eef7d7a1 1519 pos = wpa_supplicant_wps_ie_txt(pos, end, bss);
6fc6879b
JM		 1520 if (!ie && !ie2 && bss->caps & IEEE80211_CAP_PRIVACY) {
1521 ret = os_snprintf(pos, end - pos, "[WEP]");
1522 if (ret < 0 || ret >= end - pos)
1523 return pos - buf;
1524 pos += ret;
1525 }
1526 if (bss->caps & IEEE80211_CAP_IBSS) {
1527 ret = os_snprintf(pos, end - pos, "[IBSS]");
1528 if (ret < 0 || ret >= end - pos)
1529 return pos - buf;
1530 pos += ret;
1531 }
1532
3fd0b8f1 1533 ret = os_snprintf(pos, end - pos, "\n");
6fc6879b
JM		 1534 if (ret < 0 || ret >= end - pos)
1535 return pos - buf;
1536 pos += ret;
1537
1538 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
1539 ret = os_snprintf(pos, end - pos, "ssid=%s\n",
1540 ie ? wpa_ssid_txt(ie + 2, ie[1]) : "");
1541 if (ret < 0 || ret >= end - pos)
1542 return pos - buf;
1543 pos += ret;
1544
611ed491
JM		 1545#ifdef CONFIG_WPS
1546 ie = (const u8 *) (bss + 1);
1547 ret = wpas_wps_scan_result_text(ie, bss->ie_len, pos, end);
1548 if (ret < 0 || ret >= end - pos)
1549 return pos - buf;
1550 pos += ret;
1551#endif /* CONFIG_WPS */
1552
6fc6879b
JM		 1553 return pos - buf;
1554}
1555
1556
1557static int wpa_supplicant_ctrl_iface_ap_scan(
1558 struct wpa_supplicant *wpa_s, char *cmd)
1559{
1560 int ap_scan = atoi(cmd);
86b89452 1561 return wpa_supplicant_set_ap_scan(wpa_s, ap_scan);
6fc6879b
JM		 1562}
1563
1564
1565char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
1566 char *buf, size_t *resp_len)
1567{
1568 char *reply;
1569 const int reply_size = 2048;
1570 int ctrl_rsp = 0;
1571 int reply_len;
1572
1573 if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0 ||
1574 os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
1575 wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface",
1576 (const u8 *) buf, os_strlen(buf));
1577 } else {
1578 wpa_hexdump_ascii(MSG_DEBUG, "RX ctrl_iface",
1579 (const u8 *) buf, os_strlen(buf));
1580 }
1581
1582 reply = os_malloc(reply_size);
1583 if (reply == NULL) {
1584 *resp_len = 1;
1585 return NULL;
1586 }
1587
1588 os_memcpy(reply, "OK\n", 3);
1589 reply_len = 3;
1590
1591 if (os_strcmp(buf, "PING") == 0) {
1592 os_memcpy(reply, "PONG\n", 5);
1593 reply_len = 5;
1594 } else if (os_strcmp(buf, "MIB") == 0) {
1595 reply_len = wpa_sm_get_mib(wpa_s->wpa, reply, reply_size);
1596 if (reply_len >= 0) {
1597 int res;
1598 res = eapol_sm_get_mib(wpa_s->eapol, reply + reply_len,
1599 reply_size - reply_len);
1600 if (res < 0)
1601 reply_len = -1;
1602 else
1603 reply_len += res;
1604 }
1605 } else if (os_strncmp(buf, "STATUS", 6) == 0) {
1606 reply_len = wpa_supplicant_ctrl_iface_status(
1607 wpa_s, buf + 6, reply, reply_size);
1608 } else if (os_strcmp(buf, "PMKSA") == 0) {
540264a7
JM		 1609 reply_len = wpa_sm_pmksa_cache_list(wpa_s->wpa, reply,
1610 reply_size);
6fc6879b
JM		 1611 } else if (os_strncmp(buf, "SET ", 4) == 0) {
1612 if (wpa_supplicant_ctrl_iface_set(wpa_s, buf + 4))
1613 reply_len = -1;
1614 } else if (os_strcmp(buf, "LOGON") == 0) {
1615 eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
1616 } else if (os_strcmp(buf, "LOGOFF") == 0) {
1617 eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
1618 } else if (os_strcmp(buf, "REASSOCIATE") == 0) {
1619 wpa_s->disconnected = 0;
1620 wpa_s->reassociate = 1;
1621 wpa_supplicant_req_scan(wpa_s, 0, 0);
1622 } else if (os_strcmp(buf, "RECONNECT") == 0) {
1623 if (wpa_s->disconnected) {
1624 wpa_s->disconnected = 0;
1625 wpa_s->reassociate = 1;
1626 wpa_supplicant_req_scan(wpa_s, 0, 0);
1627 }
ec717917 1628#ifdef IEEE8021X_EAPOL
6fc6879b
JM		 1629 } else if (os_strncmp(buf, "PREAUTH ", 8) == 0) {
1630 if (wpa_supplicant_ctrl_iface_preauth(wpa_s, buf + 8))
1631 reply_len = -1;
ec717917 1632#endif /* IEEE8021X_EAPOL */
6fc6879b
JM		 1633#ifdef CONFIG_PEERKEY
1634 } else if (os_strncmp(buf, "STKSTART ", 9) == 0) {
1635 if (wpa_supplicant_ctrl_iface_stkstart(wpa_s, buf + 9))
1636 reply_len = -1;
1637#endif /* CONFIG_PEERKEY */
1638#ifdef CONFIG_IEEE80211R
1639 } else if (os_strncmp(buf, "FT_DS ", 6) == 0) {
1640 if (wpa_supplicant_ctrl_iface_ft_ds(wpa_s, buf + 6))
1641 reply_len = -1;
1642#endif /* CONFIG_IEEE80211R */
fcc60db4
JM		 1643#ifdef CONFIG_WPS
1644 } else if (os_strcmp(buf, "WPS_PBC") == 0) {
1645 if (wpa_supplicant_ctrl_iface_wps_pbc(wpa_s, NULL))
1646 reply_len = -1;
1647 } else if (os_strncmp(buf, "WPS_PBC ", 8) == 0) {
1648 if (wpa_supplicant_ctrl_iface_wps_pbc(wpa_s, buf + 8))
1649 reply_len = -1;
1650 } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
1651 reply_len = wpa_supplicant_ctrl_iface_wps_pin(wpa_s, buf + 8,
1652 reply,
1653 reply_size);
116f7bb0 1654#ifdef CONFIG_WPS_OOB
46bdb83a
MH		 1655 } else if (os_strncmp(buf, "WPS_OOB ", 8) == 0) {
1656 if (wpa_supplicant_ctrl_iface_wps_oob(wpa_s, buf + 8))
1657 reply_len = -1;
116f7bb0 1658#endif /* CONFIG_WPS_OOB */
fcc60db4
JM		 1659 } else if (os_strncmp(buf, "WPS_REG ", 8) == 0) {
1660 if (wpa_supplicant_ctrl_iface_wps_reg(wpa_s, buf + 8))
1661 reply_len = -1;
72df2f5f 1662#ifdef CONFIG_WPS_ER
e9bcfebf
JM		 1663 } else if (os_strcmp(buf, "WPS_ER_START") == 0) {
1664 if (wpas_wps_er_start(wpa_s))
1665 reply_len = -1;
1666 } else if (os_strcmp(buf, "WPS_ER_STOP") == 0) {
1667 if (wpas_wps_er_stop(wpa_s))
1668 reply_len = -1;
72df2f5f
JM		 1669 } else if (os_strncmp(buf, "WPS_ER_PIN ", 11) == 0) {
1670 if (wpa_supplicant_ctrl_iface_wps_er_pin(wpa_s, buf + 11))
1671 reply_len = -1;
564cd7fa
JM		 1672 } else if (os_strncmp(buf, "WPS_ER_PBC ", 11) == 0) {
1673 if (wpas_wps_er_pbc(wpa_s, buf + 11))
1674 reply_len = -1;
e64dcfd5
JM		 1675 } else if (os_strncmp(buf, "WPS_ER_LEARN ", 13) == 0) {
1676 if (wpa_supplicant_ctrl_iface_wps_er_learn(wpa_s, buf + 13))
1677 reply_len = -1;
72df2f5f 1678#endif /* CONFIG_WPS_ER */
fcc60db4 1679#endif /* CONFIG_WPS */
11ef8d35
JM		 1680#ifdef CONFIG_IBSS_RSN
1681 } else if (os_strncmp(buf, "IBSS_RSN ", 9) == 0) {
1682 if (wpa_supplicant_ctrl_iface_ibss_rsn(wpa_s, buf + 9))
1683 reply_len = -1;
1684#endif /* CONFIG_IBSS_RSN */
6fc6879b
JM		 1685 } else if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0)
1686 {
1687 if (wpa_supplicant_ctrl_iface_ctrl_rsp(
1688 wpa_s, buf + os_strlen(WPA_CTRL_RSP)))
1689 reply_len = -1;
1690 else
1691 ctrl_rsp = 1;
1692 } else if (os_strcmp(buf, "RECONFIGURE") == 0) {
1693 if (wpa_supplicant_reload_configuration(wpa_s))
1694 reply_len = -1;
1695 } else if (os_strcmp(buf, "TERMINATE") == 0) {
1696 eloop_terminate();
1697 } else if (os_strncmp(buf, "BSSID ", 6) == 0) {
1698 if (wpa_supplicant_ctrl_iface_bssid(wpa_s, buf + 6))
1699 reply_len = -1;
1700 } else if (os_strcmp(buf, "LIST_NETWORKS") == 0) {
1701 reply_len = wpa_supplicant_ctrl_iface_list_networks(
1702 wpa_s, reply, reply_size);
1703 } else if (os_strcmp(buf, "DISCONNECT") == 0) {
1704 wpa_s->reassociate = 0;
1705 wpa_s->disconnected = 1;
1706 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1707 } else if (os_strcmp(buf, "SCAN") == 0) {
1708 wpa_s->scan_req = 2;
1709 wpa_supplicant_req_scan(wpa_s, 0, 0);
1710 } else if (os_strcmp(buf, "SCAN_RESULTS") == 0) {
1711 reply_len = wpa_supplicant_ctrl_iface_scan_results(
1712 wpa_s, reply, reply_size);
1713 } else if (os_strncmp(buf, "SELECT_NETWORK ", 15) == 0) {
1714 if (wpa_supplicant_ctrl_iface_select_network(wpa_s, buf + 15))
1715 reply_len = -1;
1716 } else if (os_strncmp(buf, "ENABLE_NETWORK ", 15) == 0) {
1717 if (wpa_supplicant_ctrl_iface_enable_network(wpa_s, buf + 15))
1718 reply_len = -1;
1719 } else if (os_strncmp(buf, "DISABLE_NETWORK ", 16) == 0) {
1720 if (wpa_supplicant_ctrl_iface_disable_network(wpa_s, buf + 16))
1721 reply_len = -1;
1722 } else if (os_strcmp(buf, "ADD_NETWORK") == 0) {
1723 reply_len = wpa_supplicant_ctrl_iface_add_network(
1724 wpa_s, reply, reply_size);
1725 } else if (os_strncmp(buf, "REMOVE_NETWORK ", 15) == 0) {
1726 if (wpa_supplicant_ctrl_iface_remove_network(wpa_s, buf + 15))
1727 reply_len = -1;
1728 } else if (os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
1729 if (wpa_supplicant_ctrl_iface_set_network(wpa_s, buf + 12))
1730 reply_len = -1;
1731 } else if (os_strncmp(buf, "GET_NETWORK ", 12) == 0) {
1732 reply_len = wpa_supplicant_ctrl_iface_get_network(
1733 wpa_s, buf + 12, reply, reply_size);
1734#ifndef CONFIG_NO_CONFIG_WRITE
1735 } else if (os_strcmp(buf, "SAVE_CONFIG") == 0) {
1736 if (wpa_supplicant_ctrl_iface_save_config(wpa_s))
1737 reply_len = -1;
1738#endif /* CONFIG_NO_CONFIG_WRITE */
1739 } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) {
1740 reply_len = wpa_supplicant_ctrl_iface_get_capability(
1741 wpa_s, buf + 15, reply, reply_size);
1742 } else if (os_strncmp(buf, "AP_SCAN ", 8) == 0) {
1743 if (wpa_supplicant_ctrl_iface_ap_scan(wpa_s, buf + 8))
1744 reply_len = -1;
4b4a8ae5
JM		 1745 } else if (os_strcmp(buf, "INTERFACE_LIST") == 0) {
1746 reply_len = wpa_supplicant_global_iface_list(
1747 wpa_s->global, reply, reply_size);
6fc6879b
JM		 1748 } else if (os_strcmp(buf, "INTERFACES") == 0) {
1749 reply_len = wpa_supplicant_global_iface_interfaces(
1750 wpa_s->global, reply, reply_size);
1751 } else if (os_strncmp(buf, "BSS ", 4) == 0) {
1752 reply_len = wpa_supplicant_ctrl_iface_bss(
1753 wpa_s, buf + 4, reply, reply_size);
e653b622
JM		 1754#ifdef CONFIG_AP
1755 } else if (os_strcmp(buf, "STA-FIRST") == 0) {
1756 reply_len = ap_ctrl_iface_sta_first(wpa_s, reply, reply_size);
1757 } else if (os_strncmp(buf, "STA ", 4) == 0) {
1758 reply_len = ap_ctrl_iface_sta(wpa_s, buf + 4, reply,
1759 reply_size);
1760 } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
1761 reply_len = ap_ctrl_iface_sta_next(wpa_s, buf + 9, reply,
1762 reply_size);
1763#endif /* CONFIG_AP */
6fc6879b
JM		 1764 } else {
1765 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1766 reply_len = 16;
1767 }
1768
1769 if (reply_len < 0) {
1770 os_memcpy(reply, "FAIL\n", 5);
1771 reply_len = 5;
1772 }
1773
1774 if (ctrl_rsp)
1775 eapol_sm_notify_ctrl_response(wpa_s->eapol);
1776
1777 *resp_len = reply_len;
1778 return reply;
1779}
1780
1781
1782static int wpa_supplicant_global_iface_add(struct wpa_global *global,
1783 char *cmd)
1784{
1785 struct wpa_interface iface;
1786 char *pos;
1787
1788 /*
1789 * <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param>
1790 * TAB<bridge_ifname>
1791 */
1792 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd);
1793
1794 os_memset(&iface, 0, sizeof(iface));
1795
1796 do {
1797 iface.ifname = pos = cmd;
1798 pos = os_strchr(pos, '\t');
1799 if (pos)
1800 *pos++ = '\0';
1801 if (iface.ifname[0] == '\0')
1802 return -1;
1803 if (pos == NULL)
1804 break;
1805
1806 iface.confname = pos;
1807 pos = os_strchr(pos, '\t');
1808 if (pos)
1809 *pos++ = '\0';
1810 if (iface.confname[0] == '\0')
1811 iface.confname = NULL;
1812 if (pos == NULL)
1813 break;
1814
1815 iface.driver = pos;
1816 pos = os_strchr(pos, '\t');
1817 if (pos)
1818 *pos++ = '\0';
1819 if (iface.driver[0] == '\0')
1820 iface.driver = NULL;
1821 if (pos == NULL)
1822 break;
1823
1824 iface.ctrl_interface = pos;
1825 pos = os_strchr(pos, '\t');
1826 if (pos)
1827 *pos++ = '\0';
1828 if (iface.ctrl_interface[0] == '\0')
1829 iface.ctrl_interface = NULL;
1830 if (pos == NULL)
1831 break;
1832
1833 iface.driver_param = pos;
1834 pos = os_strchr(pos, '\t');
1835 if (pos)
1836 *pos++ = '\0';
1837 if (iface.driver_param[0] == '\0')
1838 iface.driver_param = NULL;
1839 if (pos == NULL)
1840 break;
1841
1842 iface.bridge_ifname = pos;
1843 pos = os_strchr(pos, '\t');
1844 if (pos)
1845 *pos++ = '\0';
1846 if (iface.bridge_ifname[0] == '\0')
1847 iface.bridge_ifname = NULL;
1848 if (pos == NULL)
1849 break;
1850 } while (0);
1851
1852 if (wpa_supplicant_get_iface(global, iface.ifname))
1853 return -1;
1854
1855 return wpa_supplicant_add_iface(global, &iface) ? 0 : -1;
1856}
1857
1858
1859static int wpa_supplicant_global_iface_remove(struct wpa_global *global,
1860 char *cmd)
1861{
1862 struct wpa_supplicant *wpa_s;
1863
1864 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd);
1865
1866 wpa_s = wpa_supplicant_get_iface(global, cmd);
1867 if (wpa_s == NULL)
1868 return -1;
1869 return wpa_supplicant_remove_iface(global, wpa_s);
1870}
1871
1872
4b4a8ae5
JM		 1873static void wpa_free_iface_info(struct wpa_interface_info *iface)
1874{
1875 struct wpa_interface_info *prev;
1876
1877 while (iface) {
1878 prev = iface;
1879 iface = iface->next;
1880
1881 os_free(prev->ifname);
1882 os_free(prev->desc);
1883 os_free(prev);
1884 }
1885}
1886
1887
1888static int wpa_supplicant_global_iface_list(struct wpa_global *global,
1889 char *buf, int len)
1890{
1891 int i, res;
1892 struct wpa_interface_info *iface = NULL, *last = NULL, *tmp;
1893 char *pos, *end;
1894
c5121837
JM		 1895 for (i = 0; wpa_drivers[i]; i++) {
1896 struct wpa_driver_ops *drv = wpa_drivers[i];
4b4a8ae5
JM		 1897 if (drv->get_interfaces == NULL)
1898 continue;
1899 tmp = drv->get_interfaces(global->drv_priv);
1900 if (tmp == NULL)
1901 continue;
1902
1903 if (last == NULL)
1904 iface = last = tmp;
1905 else
1906 last->next = tmp;
1907 while (last->next)
1908 last = last->next;
1909 }
1910
1911 pos = buf;
1912 end = buf + len;
1913 for (tmp = iface; tmp; tmp = tmp->next) {
1914 res = os_snprintf(pos, end - pos, "%s\t%s\t%s\n",
1915 tmp->drv_name, tmp->ifname,
1916 tmp->desc ? tmp->desc : "");
1917 if (res < 0 || res >= end - pos) {
1918 *pos = '\0';
1919 break;
1920 }
1921 pos += res;
1922 }
1923
1924 wpa_free_iface_info(iface);
1925
1926 return pos - buf;
1927}
1928
1929
6fc6879b
JM		 1930static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
1931 char *buf, int len)
1932{
1933 int res;
1934 char *pos, *end;
1935 struct wpa_supplicant *wpa_s;
1936
1937 wpa_s = global->ifaces;
1938 pos = buf;
1939 end = buf + len;
1940
1941 while (wpa_s) {
1942 res = os_snprintf(pos, end - pos, "%s\n", wpa_s->ifname);
1943 if (res < 0 || res >= end - pos) {
1944 *pos = '\0';
1945 break;
1946 }
1947 pos += res;
1948 wpa_s = wpa_s->next;
1949 }
1950 return pos - buf;
1951}
1952
1953
1954char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
1955 char *buf, size_t *resp_len)
1956{
1957 char *reply;
1958 const int reply_size = 2048;
1959 int reply_len;
1960
1961 wpa_hexdump_ascii(MSG_DEBUG, "RX global ctrl_iface",
1962 (const u8 *) buf, os_strlen(buf));
1963
1964 reply = os_malloc(reply_size);
1965 if (reply == NULL) {
1966 *resp_len = 1;
1967 return NULL;
1968 }
1969
1970 os_memcpy(reply, "OK\n", 3);
1971 reply_len = 3;
1972
1973 if (os_strcmp(buf, "PING") == 0) {
1974 os_memcpy(reply, "PONG\n", 5);
1975 reply_len = 5;
1976 } else if (os_strncmp(buf, "INTERFACE_ADD ", 14) == 0) {
1977 if (wpa_supplicant_global_iface_add(global, buf + 14))
1978 reply_len = -1;
1979 } else if (os_strncmp(buf, "INTERFACE_REMOVE ", 17) == 0) {
1980 if (wpa_supplicant_global_iface_remove(global, buf + 17))
1981 reply_len = -1;
4b4a8ae5
JM		 1982 } else if (os_strcmp(buf, "INTERFACE_LIST") == 0) {
1983 reply_len = wpa_supplicant_global_iface_list(
1984 global, reply, reply_size);
6fc6879b
JM		 1985 } else if (os_strcmp(buf, "INTERFACES") == 0) {
1986 reply_len = wpa_supplicant_global_iface_interfaces(
1987 global, reply, reply_size);
1988 } else if (os_strcmp(buf, "TERMINATE") == 0) {
1989 eloop_terminate();
1990 } else {
1991 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1992 reply_len = 16;
1993 }
1994
1995 if (reply_len < 0) {
1996 os_memcpy(reply, "FAIL\n", 5);
1997 reply_len = 5;
1998 }
1999
2000 *resp_len = reply_len;
2001 return reply;
2002}
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