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