1 /*
2 * WPA Supplicant / Control interface (shared code for all backends)
3 * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
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 "wpa_supplicant.h"
21 #include "config.h"
22 #include "eapol_sm.h"
23 #include "wpa_supplicant_i.h"
24 #include "ctrl_iface.h"
25 #include "l2_packet.h"
26 #include "preauth.h"
27 #include "pmksa_cache.h"
28 #include "wpa_ctrl.h"
29 #include "eap.h"
30
31
32 static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
33 char *buf, int len);
34
35
wpa_supplicant_ctrl_iface_set(struct wpa_supplicant * wpa_s,char * cmd)36 static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
37 char *cmd)
38 {
39 char *value;
40 int ret = 0;
41
42 value = os_strchr(cmd, ' ');
43 if (value == NULL)
44 return -1;
45 *value++ = '\0';
46
47 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
48 if (os_strcasecmp(cmd, "EAPOL::heldPeriod") == 0) {
49 eapol_sm_configure(wpa_s->eapol,
50 atoi(value), -1, -1, -1);
51 } else if (os_strcasecmp(cmd, "EAPOL::authPeriod") == 0) {
52 eapol_sm_configure(wpa_s->eapol,
53 -1, atoi(value), -1, -1);
54 } else if (os_strcasecmp(cmd, "EAPOL::startPeriod") == 0) {
55 eapol_sm_configure(wpa_s->eapol,
56 -1, -1, atoi(value), -1);
57 } else if (os_strcasecmp(cmd, "EAPOL::maxStart") == 0) {
58 eapol_sm_configure(wpa_s->eapol,
59 -1, -1, -1, atoi(value));
60 } else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKLifetime") == 0) {
61 if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
62 atoi(value)))
63 ret = -1;
64 } else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKReauthThreshold") ==
65 0) {
66 if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
67 atoi(value)))
68 ret = -1;
69 } else if (os_strcasecmp(cmd, "dot11RSNAConfigSATimeout") == 0) {
70 if (wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, atoi(value)))
71 ret = -1;
72 } else
73 ret = -1;
74
75 return ret;
76 }
77
78
79 #ifdef IEEE8021X_EAPOL
wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant * wpa_s,char * addr)80 static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant *wpa_s,
81 char *addr)
82 {
83 u8 bssid[ETH_ALEN];
84
85 if (hwaddr_aton(addr, bssid)) {
86 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH: invalid address "
87 "'%s'", addr);
88 return -1;
89 }
90
91 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH " MACSTR, MAC2STR(bssid));
92 rsn_preauth_deinit(wpa_s->wpa);
93 if (rsn_preauth_init(wpa_s->wpa, bssid, wpa_s->current_ssid))
94 return -1;
95
96 return 0;
97 }
98 #endif /* IEEE8021X_EAPOL */
99
100
101 #ifdef CONFIG_PEERKEY
102 /* MLME-STKSTART.request(peer) */
wpa_supplicant_ctrl_iface_stkstart(struct wpa_supplicant * wpa_s,char * addr)103 static int wpa_supplicant_ctrl_iface_stkstart(
104 struct wpa_supplicant *wpa_s, char *addr)
105 {
106 u8 peer[ETH_ALEN];
107
108 if (hwaddr_aton(addr, peer)) {
109 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART: invalid "
110 "address '%s'", peer);
111 return -1;
112 }
113
114 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART " MACSTR,
115 MAC2STR(peer));
116
117 return wpa_sm_stkstart(wpa_s->wpa, peer);
118 }
119 #endif /* CONFIG_PEERKEY */
120
121
wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant * wpa_s,char * rsp)122 static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant *wpa_s,
123 char *rsp)
124 {
125 #ifdef IEEE8021X_EAPOL
126 char *pos, *id_pos;
127 int id;
128 struct wpa_ssid *ssid;
129
130 pos = os_strchr(rsp, '-');
131 if (pos == NULL)
132 return -1;
133 *pos++ = '\0';
134 id_pos = pos;
135 pos = os_strchr(pos, ':');
136 if (pos == NULL)
137 return -1;
138 *pos++ = '\0';
139 id = atoi(id_pos);
140 wpa_printf(MSG_DEBUG, "CTRL_IFACE: field=%s id=%d", rsp, id);
141 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
142 (u8 *) pos, os_strlen(pos));
143
144 ssid = wpa_config_get_network(wpa_s->conf, id);
145 if (ssid == NULL) {
146 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
147 "to update", id);
148 return -1;
149 }
150
151 if (os_strcmp(rsp, "IDENTITY") == 0) {
152 os_free(ssid->identity);
153 ssid->identity = (u8 *) os_strdup(pos);
154 ssid->identity_len = os_strlen(pos);
155 ssid->pending_req_identity = 0;
156 if (ssid == wpa_s->current_ssid)
157 wpa_s->reassociate = 1;
158 } else if (os_strcmp(rsp, "PASSWORD") == 0) {
159 os_free(ssid->password);
160 ssid->password = (u8 *) os_strdup(pos);
161 ssid->password_len = os_strlen(pos);
162 ssid->pending_req_password = 0;
163 if (ssid == wpa_s->current_ssid)
164 wpa_s->reassociate = 1;
165 } else if (os_strcmp(rsp, "NEW_PASSWORD") == 0) {
166 os_free(ssid->new_password);
167 ssid->new_password = (u8 *) os_strdup(pos);
168 ssid->new_password_len = os_strlen(pos);
169 ssid->pending_req_new_password = 0;
170 if (ssid == wpa_s->current_ssid)
171 wpa_s->reassociate = 1;
172 } else if (os_strcmp(rsp, "PIN") == 0) {
173 os_free(ssid->pin);
174 ssid->pin = os_strdup(pos);
175 ssid->pending_req_pin = 0;
176 if (ssid == wpa_s->current_ssid)
177 wpa_s->reassociate = 1;
178 } else if (os_strcmp(rsp, "OTP") == 0) {
179 os_free(ssid->otp);
180 ssid->otp = (u8 *) os_strdup(pos);
181 ssid->otp_len = os_strlen(pos);
182 os_free(ssid->pending_req_otp);
183 ssid->pending_req_otp = NULL;
184 ssid->pending_req_otp_len = 0;
185 } else if (os_strcmp(rsp, "PASSPHRASE") == 0) {
186 os_free(ssid->private_key_passwd);
187 ssid->private_key_passwd = (u8 *) os_strdup(pos);
188 ssid->pending_req_passphrase = 0;
189 if (ssid == wpa_s->current_ssid)
190 wpa_s->reassociate = 1;
191 } else {
192 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", rsp);
193 return -1;
194 }
195
196 return 0;
197 #else /* IEEE8021X_EAPOL */
198 wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included");
199 return -1;
200 #endif /* IEEE8021X_EAPOL */
201 }
202
203
wpa_supplicant_ctrl_iface_status(struct wpa_supplicant * wpa_s,const char * params,char * buf,size_t buflen)204 static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
205 const char *params,
206 char *buf, size_t buflen)
207 {
208 char *pos, *end, tmp[30];
209 int res, verbose, ret;
210
211 verbose = os_strcmp(params, "-VERBOSE") == 0;
212 pos = buf;
213 end = buf + buflen;
214 if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
215 struct wpa_ssid *ssid = wpa_s->current_ssid;
216 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n",
217 MAC2STR(wpa_s->bssid));
218 if (ret < 0 || ret >= end - pos)
219 return pos - buf;
220 pos += ret;
221 if (ssid) {
222 u8 *_ssid = ssid->ssid;
223 size_t ssid_len = ssid->ssid_len;
224 u8 ssid_buf[MAX_SSID_LEN];
225 if (ssid_len == 0) {
226 int _res = wpa_drv_get_ssid(wpa_s, ssid_buf);
227 if (_res < 0)
228 ssid_len = 0;
229 else
230 ssid_len = _res;
231 _ssid = ssid_buf;
232 }
233 ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n",
234 wpa_ssid_txt(_ssid, ssid_len),
235 ssid->id);
236 if (ret < 0 || ret >= end - pos)
237 return pos - buf;
238 pos += ret;
239
240 if (ssid->id_str) {
241 ret = os_snprintf(pos, end - pos,
242 "id_str=%s\n",
243 ssid->id_str);
244 if (ret < 0 || ret >= end - pos)
245 return pos - buf;
246 pos += ret;
247 }
248 }
249
250 pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose);
251 }
252 ret = os_snprintf(pos, end - pos, "wpa_state=%s\n",
253 wpa_supplicant_state_txt(wpa_s->wpa_state));
254 if (ret < 0 || ret >= end - pos)
255 return pos - buf;
256 pos += ret;
257
258 if (wpa_s->l2 &&
259 l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) {
260 ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp);
261 if (ret < 0 || ret >= end - pos)
262 return pos - buf;
263 pos += ret;
264 }
265
266 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
267 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
268 res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos,
269 verbose);
270 if (res >= 0)
271 pos += res;
272 }
273
274 res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose);
275 if (res >= 0)
276 pos += res;
277
278 return pos - buf;
279 }
280
281
wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant * wpa_s,char * cmd)282 static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant *wpa_s,
283 char *cmd)
284 {
285 char *pos;
286 int id;
287 struct wpa_ssid *ssid;
288 u8 bssid[ETH_ALEN];
289
290 /* cmd: "<network id> <BSSID>" */
291 pos = os_strchr(cmd, ' ');
292 if (pos == NULL)
293 return -1;
294 *pos++ = '\0';
295 id = atoi(cmd);
296 wpa_printf(MSG_DEBUG, "CTRL_IFACE: id=%d bssid='%s'", id, pos);
297 if (hwaddr_aton(pos, bssid)) {
298 wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", pos);
299 return -1;
300 }
301
302 ssid = wpa_config_get_network(wpa_s->conf, id);
303 if (ssid == NULL) {
304 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
305 "to update", id);
306 return -1;
307 }
308
309 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
310 ssid->bssid_set =
311 os_memcmp(bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) != 0;
312
313
314 return 0;
315 }
316
317 #ifdef ANDROID
wpa_supplicant_ctrl_iface_blacklist(struct wpa_supplicant * wpa_s,char * cmd,char * buf,size_t buflen)318 static int wpa_supplicant_ctrl_iface_blacklist(
319 struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen)
320 {
321 struct wpa_ssid *ssid;
322 u8 bssid[ETH_ALEN];
323 struct wpa_blacklist *e;
324 char *pos, *end;
325 int ret;
326
327 /* cmd: "BLACKLIST [<BSSID>]" */
328 if (*cmd == '\0') {
329 pos = buf;
330 end = buf + buflen;
331
332 e = wpa_s->blacklist;
333 while (e) {
334 ret = os_snprintf(pos, end-pos,
335 "%02x:%02x:%02x:%02x:%02x:%02x\n",
336 e->bssid[0],
337 e->bssid[1],
338 e->bssid[2],
339 e->bssid[3],
340 e->bssid[4],
341 e->bssid[5]);
342 if (ret < 0 || ret >= end - pos)
343 return pos - buf;
344 pos += ret;
345 e = e->next;
346 }
347 return pos - buf;
348 }
349 wpa_printf(MSG_DEBUG, "CTRL_IFACE: bssid='%s'", cmd);
350
351 ++cmd;
352 if (os_strncmp(cmd, "clear", 5) == 0) {
353 wpa_blacklist_clear(wpa_s);
354 return 0;
355 }
356
357 if (hwaddr_aton(cmd, bssid)) {
358 wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", cmd);
359 return -1;
360 }
361
362 /*
363 * Add the BSSID twice, so its count will be 2, causing it to be
364 * skipped when processing scan results.
365 */
366 ret = wpa_blacklist_add(wpa_s, bssid);
367 if (ret != 0)
368 return ret;
369 return wpa_blacklist_add(wpa_s, bssid);
370 }
371 #endif
372
wpa_supplicant_ctrl_iface_list_networks(struct wpa_supplicant * wpa_s,char * buf,size_t buflen)373 static int wpa_supplicant_ctrl_iface_list_networks(
374 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
375 {
376 char *pos, *end;
377 struct wpa_ssid *ssid;
378 int ret;
379
380 pos = buf;
381 end = buf + buflen;
382 ret = os_snprintf(pos, end - pos,
383 "network id / ssid / bssid / flags\n");
384 if (ret < 0 || ret >= end - pos)
385 return pos - buf;
386 pos += ret;
387
388 ssid = wpa_s->conf->ssid;
389 while (ssid) {
390 ret = os_snprintf(pos, end - pos, "%d\t%s",
391 ssid->id,
392 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
393 if (ret < 0 || ret >= end - pos)
394 return pos - buf;
395 pos += ret;
396 if (ssid->bssid_set) {
397 ret = os_snprintf(pos, end - pos, "\t" MACSTR,
398 MAC2STR(ssid->bssid));
399 } else {
400 ret = os_snprintf(pos, end - pos, "\tany");
401 }
402 if (ret < 0 || ret >= end - pos)
403 return pos - buf;
404 pos += ret;
405 ret = os_snprintf(pos, end - pos, "\t%s%s",
406 ssid == wpa_s->current_ssid ?
407 "[CURRENT]" : "",
408 ssid->disabled ? "[DISABLED]" : "");
409 if (ret < 0 || ret >= end - pos)
410 return pos - buf;
411 pos += ret;
412 ret = os_snprintf(pos, end - pos, "\n");
413 if (ret < 0 || ret >= end - pos)
414 return pos - buf;
415 pos += ret;
416
417 ssid = ssid->next;
418 }
419
420 return pos - buf;
421 }
422
423
wpa_supplicant_cipher_txt(char * pos,char * end,int cipher)424 static char * wpa_supplicant_cipher_txt(char *pos, char *end, int cipher)
425 {
426 int first = 1, ret;
427 ret = os_snprintf(pos, end - pos, "-");
428 if (ret < 0 || ret >= end - pos)
429 return pos;
430 pos += ret;
431 if (cipher & WPA_CIPHER_NONE) {
432 ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : "+");
433 if (ret < 0 || ret >= end - pos)
434 return pos;
435 pos += ret;
436 first = 0;
437 }
438 if (cipher & WPA_CIPHER_WEP40) {
439 ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : "+");
440 if (ret < 0 || ret >= end - pos)
441 return pos;
442 pos += ret;
443 first = 0;
444 }
445 if (cipher & WPA_CIPHER_WEP104) {
446 ret = os_snprintf(pos, end - pos, "%sWEP104",
447 first ? "" : "+");
448 if (ret < 0 || ret >= end - pos)
449 return pos;
450 pos += ret;
451 first = 0;
452 }
453 if (cipher & WPA_CIPHER_TKIP) {
454 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : "+");
455 if (ret < 0 || ret >= end - pos)
456 return pos;
457 pos += ret;
458 first = 0;
459 }
460 if (cipher & WPA_CIPHER_CCMP) {
461 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : "+");
462 if (ret < 0 || ret >= end - pos)
463 return pos;
464 pos += ret;
465 first = 0;
466 }
467 return pos;
468 }
469
470
wpa_supplicant_ie_txt(char * pos,char * end,const char * proto,const u8 * ie,size_t ie_len)471 static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto,
472 const u8 *ie, size_t ie_len)
473 {
474 struct wpa_ie_data data;
475 int first, ret;
476
477 ret = os_snprintf(pos, end - pos, "[%s-", proto);
478 if (ret < 0 || ret >= end - pos)
479 return pos;
480 pos += ret;
481
482 if (wpa_parse_wpa_ie(ie, ie_len, &data) < 0) {
483 ret = os_snprintf(pos, end - pos, "?]");
484 if (ret < 0 || ret >= end - pos)
485 return pos;
486 pos += ret;
487 return pos;
488 }
489
490 first = 1;
491 if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
492 ret = os_snprintf(pos, end - pos, "%sEAP", first ? "" : "+");
493 if (ret < 0 || ret >= end - pos)
494 return pos;
495 pos += ret;
496 first = 0;
497 }
498 if (data.key_mgmt & WPA_KEY_MGMT_PSK) {
499 ret = os_snprintf(pos, end - pos, "%sPSK", first ? "" : "+");
500 if (ret < 0 || ret >= end - pos)
501 return pos;
502 pos += ret;
503 first = 0;
504 }
505 if (data.key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
506 ret = os_snprintf(pos, end - pos, "%sNone", first ? "" : "+");
507 if (ret < 0 || ret >= end - pos)
508 return pos;
509 pos += ret;
510 first = 0;
511 }
512
513 pos = wpa_supplicant_cipher_txt(pos, end, data.pairwise_cipher);
514
515 if (data.capabilities & WPA_CAPABILITY_PREAUTH) {
516 ret = os_snprintf(pos, end - pos, "-preauth");
517 if (ret < 0 || ret >= end - pos)
518 return pos;
519 pos += ret;
520 }
521
522 ret = os_snprintf(pos, end - pos, "]");
523 if (ret < 0 || ret >= end - pos)
524 return pos;
525 pos += ret;
526
527 return pos;
528 }
529
530
wpa_supplicant_ctrl_iface_scan_results(struct wpa_supplicant * wpa_s,char * buf,size_t buflen)531 static int wpa_supplicant_ctrl_iface_scan_results(
532 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
533 {
534 char *pos, *end, *retpos;
535 struct wpa_scan_result *res;
536 int i, ret;
537
538 if (wpa_s->scan_results == NULL &&
539 wpa_supplicant_get_scan_results(wpa_s) < 0)
540 return 0;
541 if (wpa_s->scan_results == NULL)
542 return 0;
543
544 pos = buf;
545 end = buf + buflen;
546 ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / "
547 "flags / ssid\n");
548 if (ret < 0 || ret >= end - pos)
549 return pos - buf;
550 pos += ret;
551
552 for (i = 0; i < wpa_s->num_scan_results; i++) {
553 retpos = pos;
554 res = &wpa_s->scan_results[i];
555 ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
556 MAC2STR(res->bssid), res->freq, res->level);
557 if (ret < 0 || ret >= end - pos)
558 return retpos - buf;
559 pos += ret;
560 if (res->wpa_ie_len) {
561 pos = wpa_supplicant_ie_txt(pos, end, "WPA",
562 res->wpa_ie,
563 res->wpa_ie_len);
564 }
565 if (res->rsn_ie_len) {
566 pos = wpa_supplicant_ie_txt(pos, end, "WPA2",
567 res->rsn_ie,
568 res->rsn_ie_len);
569 }
570 if (!res->wpa_ie_len && !res->rsn_ie_len &&
571 res->caps & IEEE80211_CAP_PRIVACY) {
572 ret = os_snprintf(pos, end - pos, "[WEP]");
573 if (ret < 0 || ret >= end - pos)
574 return retpos - buf;
575 pos += ret;
576 }
577 if (res->caps & IEEE80211_CAP_IBSS) {
578 ret = os_snprintf(pos, end - pos, "[IBSS]");
579 if (ret < 0 || ret >= end - pos)
580 return retpos - buf;
581 pos += ret;
582 }
583 if (!res->wpa_ie_len && !res->rsn_ie_len) {
584 ret = os_snprintf(pos, end - pos, "\t");
585 if (ret < 0 || ret >= end - pos)
586 return retpos - buf;
587 pos += ret;
588 }
589
590 ret = os_snprintf(pos, end - pos, "\t%s",
591 wpa_ssid_txt(res->ssid, res->ssid_len));
592 if (ret < 0 || ret >= end - pos)
593 return retpos - buf;
594 pos += ret;
595
596 ret = os_snprintf(pos, end - pos, "\n");
597 if (ret < 0 || ret >= end - pos)
598 return retpos - buf;
599 pos += ret;
600 }
601
602 return pos - buf;
603 }
604
605
wpa_supplicant_ctrl_iface_select_network(struct wpa_supplicant * wpa_s,char * cmd)606 static int wpa_supplicant_ctrl_iface_select_network(
607 struct wpa_supplicant *wpa_s, char *cmd)
608 {
609 int id;
610 struct wpa_ssid *ssid;
611
612 /* cmd: "<network id>" or "any" */
613 if (os_strcmp(cmd, "any") == 0) {
614 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK any");
615 ssid = wpa_s->conf->ssid;
616 while (ssid) {
617 ssid->disabled = 0;
618 ssid = ssid->next;
619 }
620 wpa_s->reassociate = 1;
621 wpa_supplicant_req_scan(wpa_s, 0, 0);
622 return 0;
623 }
624
625 id = atoi(cmd);
626 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK id=%d", id);
627
628 ssid = wpa_config_get_network(wpa_s->conf, id);
629 if (ssid == NULL) {
630 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
631 "id=%d", id);
632 return -1;
633 }
634
635 if (ssid != wpa_s->current_ssid && wpa_s->current_ssid)
636 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
637
638 /* Mark all other networks disabled and trigger reassociation */
639 ssid = wpa_s->conf->ssid;
640 while (ssid) {
641 ssid->disabled = id != ssid->id;
642 ssid = ssid->next;
643 }
644 wpa_s->reassociate = 1;
645 wpa_supplicant_req_scan(wpa_s, 0, 0);
646
647 return 0;
648 }
649
650
wpa_supplicant_ctrl_iface_enable_network(struct wpa_supplicant * wpa_s,char * cmd)651 static int wpa_supplicant_ctrl_iface_enable_network(
652 struct wpa_supplicant *wpa_s, char *cmd)
653 {
654 int id;
655 struct wpa_ssid *ssid;
656
657 /* cmd: "<network id>" */
658 id = atoi(cmd);
659 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK id=%d", id);
660
661 ssid = wpa_config_get_network(wpa_s->conf, id);
662 if (ssid == NULL) {
663 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
664 "id=%d", id);
665 return -1;
666 }
667
668 if (wpa_s->current_ssid == NULL && ssid->disabled) {
669 /*
670 * Try to reassociate since there is no current configuration
671 * and a new network was made available. */
672 wpa_s->reassociate = 1;
673 wpa_supplicant_req_scan(wpa_s, 0, 0);
674 }
675 ssid->disabled = 0;
676
677 return 0;
678 }
679
680
wpa_supplicant_ctrl_iface_disable_network(struct wpa_supplicant * wpa_s,char * cmd)681 static int wpa_supplicant_ctrl_iface_disable_network(
682 struct wpa_supplicant *wpa_s, char *cmd)
683 {
684 int id;
685 struct wpa_ssid *ssid;
686
687 /* cmd: "<network id>" */
688 id = atoi(cmd);
689 wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK id=%d", id);
690
691 ssid = wpa_config_get_network(wpa_s->conf, id);
692 if (ssid == NULL) {
693 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
694 "id=%d", id);
695 return -1;
696 }
697
698 if (ssid == wpa_s->current_ssid)
699 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
700 ssid->disabled = 1;
701
702 return 0;
703 }
704
705
wpa_supplicant_ctrl_iface_add_network(struct wpa_supplicant * wpa_s,char * buf,size_t buflen)706 static int wpa_supplicant_ctrl_iface_add_network(
707 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
708 {
709 struct wpa_ssid *ssid;
710 int ret;
711
712 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ADD_NETWORK");
713
714 ssid = wpa_config_add_network(wpa_s->conf);
715 if (ssid == NULL)
716 return -1;
717 ssid->disabled = 1;
718 wpa_config_set_network_defaults(ssid);
719
720 ret = os_snprintf(buf, buflen, "%d\n", ssid->id);
721 if (ret < 0 || (size_t) ret >= buflen)
722 return -1;
723 return ret;
724 }
725
726
wpa_supplicant_ctrl_iface_remove_network(struct wpa_supplicant * wpa_s,char * cmd)727 static int wpa_supplicant_ctrl_iface_remove_network(
728 struct wpa_supplicant *wpa_s, char *cmd)
729 {
730 int id;
731 struct wpa_ssid *ssid;
732
733 /* cmd: "<network id>" */
734 id = atoi(cmd);
735 wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK id=%d", id);
736
737 ssid = wpa_config_get_network(wpa_s->conf, id);
738 if (ssid == NULL ||
739 wpa_config_remove_network(wpa_s->conf, id) < 0) {
740 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
741 "id=%d", id);
742 return -1;
743 }
744
745 if (ssid == wpa_s->current_ssid) {
746 /*
747 * Invalidate the EAP session cache if the current network is
748 * removed.
749 */
750 eapol_sm_invalidate_cached_session(wpa_s->eapol);
751
752 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
753 }
754
755 return 0;
756 }
757
758
wpa_supplicant_ctrl_iface_set_network(struct wpa_supplicant * wpa_s,char * cmd)759 static int wpa_supplicant_ctrl_iface_set_network(
760 struct wpa_supplicant *wpa_s, char *cmd)
761 {
762 int id;
763 struct wpa_ssid *ssid;
764 char *name, *value;
765
766 /* cmd: "<network id> <variable name> <value>" */
767 name = os_strchr(cmd, ' ');
768 if (name == NULL)
769 return -1;
770 *name++ = '\0';
771
772 value = os_strchr(name, ' ');
773 if (value == NULL)
774 return -1;
775 *value++ = '\0';
776
777 id = atoi(cmd);
778 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SET_NETWORK id=%d name='%s'",
779 id, name);
780 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
781 (u8 *) value, os_strlen(value));
782
783 ssid = wpa_config_get_network(wpa_s->conf, id);
784 if (ssid == NULL) {
785 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
786 "id=%d", id);
787 return -1;
788 }
789
790 if (wpa_config_set(ssid, name, value, 0) < 0) {
791 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to set network "
792 "variable '%s'", name);
793 return -1;
794 }
795
796 if (wpa_s->current_ssid == ssid) {
797 /*
798 * Invalidate the EAP session cache if anything in the current
799 * configuration changes.
800 */
801 eapol_sm_invalidate_cached_session(wpa_s->eapol);
802 }
803
804 if ((os_strcmp(name, "psk") == 0 &&
805 value[0] == '"' && ssid->ssid_len) ||
806 (os_strcmp(name, "ssid") == 0 && ssid->passphrase))
807 wpa_config_update_psk(ssid);
808
809 return 0;
810 }
811
812
wpa_supplicant_ctrl_iface_get_network(struct wpa_supplicant * wpa_s,char * cmd,char * buf,size_t buflen)813 static int wpa_supplicant_ctrl_iface_get_network(
814 struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen)
815 {
816 int id;
817 struct wpa_ssid *ssid;
818 char *name, *value;
819
820 /* cmd: "<network id> <variable name>" */
821 name = os_strchr(cmd, ' ');
822 if (name == NULL || buflen == 0)
823 return -1;
824 *name++ = '\0';
825
826 id = atoi(cmd);
827 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_NETWORK id=%d name='%s'",
828 id, name);
829
830 ssid = wpa_config_get_network(wpa_s->conf, id);
831 if (ssid == NULL) {
832 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
833 "id=%d", id);
834 return -1;
835 }
836
837 value = wpa_config_get_no_key(ssid, name);
838 if (value == NULL) {
839 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to get network "
840 "variable '%s'", name);
841 return -1;
842 }
843
844 os_snprintf(buf, buflen, "%s", value);
845 buf[buflen - 1] = '\0';
846
847 os_free(value);
848
849 return os_strlen(buf);
850 }
851
852
wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant * wpa_s)853 static int wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant *wpa_s)
854 {
855 int ret;
856
857 if (!wpa_s->conf->update_config) {
858 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Not allowed "
859 "to update configuration (update_config=0)");
860 return -1;
861 }
862
863 ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
864 if (ret) {
865 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Failed to "
866 "update configuration");
867 } else {
868 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Configuration"
869 " updated");
870 }
871
872 return ret;
873 }
874
875
wpa_supplicant_ctrl_iface_get_capability(struct wpa_supplicant * wpa_s,const char * _field,char * buf,size_t buflen)876 static int wpa_supplicant_ctrl_iface_get_capability(
877 struct wpa_supplicant *wpa_s, const char *_field, char *buf,
878 size_t buflen)
879 {
880 struct wpa_driver_capa capa;
881 int res, first = 1, ret;
882 char *pos, *end, *strict;
883 char field[30];
884
885 /* Determine whether or not strict checking was requested */
886 os_snprintf(field, sizeof(field), "%s", _field);
887 field[sizeof(field) - 1] = '\0';
888 strict = os_strchr(field, ' ');
889 if (strict != NULL) {
890 *strict++ = '\0';
891 if (os_strcmp(strict, "strict") != 0)
892 return -1;
893 }
894
895 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
896 field, strict ? strict : "");
897
898 if (os_strcmp(field, "eap") == 0) {
899 return eap_get_names(buf, buflen);
900 }
901
902 res = wpa_drv_get_capa(wpa_s, &capa);
903
904 pos = buf;
905 end = pos + buflen;
906
907 if (os_strcmp(field, "pairwise") == 0) {
908 if (res < 0) {
909 if (strict)
910 return 0;
911 ret = os_snprintf(buf, buflen, "CCMP TKIP NONE");
912 if (ret < 0 || (size_t) ret >= buflen)
913 return -1;
914 return ret;
915 }
916
917 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
918 ret = os_snprintf(pos, end - pos, "%sCCMP",
919 first ? "" : " ");
920 if (ret < 0 || ret >= end - pos)
921 return pos - buf;
922 pos += ret;
923 first = 0;
924 }
925
926 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
927 ret = os_snprintf(pos, end - pos, "%sTKIP",
928 first ? "" : " ");
929 if (ret < 0 || ret >= end - pos)
930 return pos - buf;
931 pos += ret;
932 first = 0;
933 }
934
935 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
936 ret = os_snprintf(pos, end - pos, "%sNONE",
937 first ? "" : " ");
938 if (ret < 0 || ret >= end - pos)
939 return pos - buf;
940 pos += ret;
941 first = 0;
942 }
943
944 return pos - buf;
945 }
946
947 if (os_strcmp(field, "group") == 0) {
948 if (res < 0) {
949 if (strict)
950 return 0;
951 ret = os_snprintf(buf, buflen,
952 "CCMP TKIP WEP104 WEP40");
953 if (ret < 0 || (size_t) ret >= buflen)
954 return -1;
955 return ret;
956 }
957
958 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
959 ret = os_snprintf(pos, end - pos, "%sCCMP",
960 first ? "" : " ");
961 if (ret < 0 || ret >= end - pos)
962 return pos - buf;
963 pos += ret;
964 first = 0;
965 }
966
967 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
968 ret = os_snprintf(pos, end - pos, "%sTKIP",
969 first ? "" : " ");
970 if (ret < 0 || ret >= end - pos)
971 return pos - buf;
972 pos += ret;
973 first = 0;
974 }
975
976 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
977 ret = os_snprintf(pos, end - pos, "%sWEP104",
978 first ? "" : " ");
979 if (ret < 0 || ret >= end - pos)
980 return pos - buf;
981 pos += ret;
982 first = 0;
983 }
984
985 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
986 ret = os_snprintf(pos, end - pos, "%sWEP40",
987 first ? "" : " ");
988 if (ret < 0 || ret >= end - pos)
989 return pos - buf;
990 pos += ret;
991 first = 0;
992 }
993
994 return pos - buf;
995 }
996
997 if (os_strcmp(field, "key_mgmt") == 0) {
998 if (res < 0) {
999 if (strict)
1000 return 0;
1001 ret = os_snprintf(buf, buflen, "WPA-PSK WPA-EAP "
1002 "IEEE8021X WPA-NONE NONE");
1003 if (ret < 0 || (size_t) ret >= buflen)
1004 return -1;
1005 return ret;
1006 }
1007
1008 ret = os_snprintf(pos, end - pos, "NONE IEEE8021X");
1009 if (ret < 0 || ret >= end - pos)
1010 return pos - buf;
1011 pos += ret;
1012
1013 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1014 WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
1015 ret = os_snprintf(pos, end - pos, " WPA-EAP");
1016 if (ret < 0 || ret >= end - pos)
1017 return pos - buf;
1018 pos += ret;
1019 }
1020
1021 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1022 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1023 ret = os_snprintf(pos, end - pos, " WPA-PSK");
1024 if (ret < 0 || ret >= end - pos)
1025 return pos - buf;
1026 pos += ret;
1027 }
1028
1029 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1030 ret = os_snprintf(pos, end - pos, " WPA-NONE");
1031 if (ret < 0 || ret >= end - pos)
1032 return pos - buf;
1033 pos += ret;
1034 }
1035
1036 return pos - buf;
1037 }
1038
1039 if (os_strcmp(field, "proto") == 0) {
1040 if (res < 0) {
1041 if (strict)
1042 return 0;
1043 ret = os_snprintf(buf, buflen, "RSN WPA");
1044 if (ret < 0 || (size_t) ret >= buflen)
1045 return -1;
1046 return ret;
1047 }
1048
1049 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1050 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1051 ret = os_snprintf(pos, end - pos, "%sRSN",
1052 first ? "" : " ");
1053 if (ret < 0 || ret >= end - pos)
1054 return pos - buf;
1055 pos += ret;
1056 first = 0;
1057 }
1058
1059 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1060 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
1061 ret = os_snprintf(pos, end - pos, "%sWPA",
1062 first ? "" : " ");
1063 if (ret < 0 || ret >= end - pos)
1064 return pos - buf;
1065 pos += ret;
1066 first = 0;
1067 }
1068
1069 return pos - buf;
1070 }
1071
1072 if (os_strcmp(field, "auth_alg") == 0) {
1073 if (res < 0) {
1074 if (strict)
1075 return 0;
1076 ret = os_snprintf(buf, buflen, "OPEN SHARED LEAP");
1077 if (ret < 0 || (size_t) ret >= buflen)
1078 return -1;
1079 return ret;
1080 }
1081
1082 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
1083 ret = os_snprintf(pos, end - pos, "%sOPEN",
1084 first ? "" : " ");
1085 if (ret < 0 || ret >= end - pos)
1086 return pos - buf;
1087 pos += ret;
1088 first = 0;
1089 }
1090
1091 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
1092 ret = os_snprintf(pos, end - pos, "%sSHARED",
1093 first ? "" : " ");
1094 if (ret < 0 || ret >= end - pos)
1095 return pos - buf;
1096 pos += ret;
1097 first = 0;
1098 }
1099
1100 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
1101 ret = os_snprintf(pos, end - pos, "%sLEAP",
1102 first ? "" : " ");
1103 if (ret < 0 || ret >= end - pos)
1104 return pos - buf;
1105 pos += ret;
1106 first = 0;
1107 }
1108
1109 return pos - buf;
1110 }
1111
1112 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
1113 field);
1114
1115 return -1;
1116 }
1117
1118
wpa_supplicant_ctrl_iface_ap_scan(struct wpa_supplicant * wpa_s,char * cmd)1119 static int wpa_supplicant_ctrl_iface_ap_scan(
1120 struct wpa_supplicant *wpa_s, char *cmd)
1121 {
1122 int ap_scan = atoi(cmd);
1123
1124 if (ap_scan < 0 || ap_scan > 2)
1125 return -1;
1126 wpa_s->conf->ap_scan = ap_scan;
1127 return 0;
1128 }
1129
wpa_supplicant_driver_cmd(struct wpa_supplicant * wpa_s,char * cmd,char * buf,size_t buflen)1130 static int wpa_supplicant_driver_cmd(struct wpa_supplicant *wpa_s,
1131 char *cmd, char *buf, size_t buflen)
1132 {
1133 int ret;
1134
1135 ret = wpa_drv_driver_cmd(wpa_s, cmd, buf, buflen);
1136 if( ret == 0 ) {
1137 ret = sprintf(buf, "%s\n", "OK");
1138 }
1139 return( ret );
1140 }
1141
wpa_supplicant_ctrl_iface_process(struct wpa_supplicant * wpa_s,char * buf,size_t * resp_len)1142 char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
1143 char *buf, size_t *resp_len)
1144 {
1145 char *reply;
1146 const int reply_size = 4096;
1147 int ctrl_rsp = 0;
1148 int reply_len;
1149
1150 if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0 ||
1151 os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
1152 wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface",
1153 (const u8 *) buf, os_strlen(buf));
1154 } else {
1155 if (os_strcmp(buf, "PING") != 0)
1156 wpa_hexdump_ascii(MSG_DEBUG, "RX ctrl_iface",
1157 (const u8 *) buf, os_strlen(buf));
1158 }
1159
1160 reply = os_malloc(reply_size);
1161 if (reply == NULL) {
1162 *resp_len = 1;
1163 return NULL;
1164 }
1165
1166 os_memcpy(reply, "OK\n", 3);
1167 reply_len = 3;
1168
1169 if (os_strcmp(buf, "PING") == 0) {
1170 os_memcpy(reply, "PONG\n", 5);
1171 reply_len = 5;
1172 } else if (os_strcmp(buf, "MIB") == 0) {
1173 reply_len = wpa_sm_get_mib(wpa_s->wpa, reply, reply_size);
1174 if (reply_len >= 0) {
1175 int res;
1176 res = eapol_sm_get_mib(wpa_s->eapol, reply + reply_len,
1177 reply_size - reply_len);
1178 if (res < 0)
1179 reply_len = -1;
1180 else
1181 reply_len += res;
1182 }
1183 } else if (os_strncmp(buf, "STATUS", 6) == 0) {
1184 reply_len = wpa_supplicant_ctrl_iface_status(
1185 wpa_s, buf + 6, reply, reply_size);
1186 } else if (os_strcmp(buf, "PMKSA") == 0) {
1187 reply_len = pmksa_cache_list(wpa_s->wpa, reply, reply_size);
1188 } else if (os_strncmp(buf, "SET ", 4) == 0) {
1189 if (wpa_supplicant_ctrl_iface_set(wpa_s, buf + 4))
1190 reply_len = -1;
1191 } else if (os_strcmp(buf, "LOGON") == 0) {
1192 eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
1193 } else if (os_strcmp(buf, "LOGOFF") == 0) {
1194 eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
1195 } else if (os_strcmp(buf, "REASSOCIATE") == 0) {
1196 wpa_s->disconnected = 0;
1197 wpa_s->reassociate = 1;
1198 wpa_supplicant_req_scan(wpa_s, 0, 0);
1199 } else if (os_strcmp(buf, "RECONNECT") == 0) {
1200 if (wpa_s->disconnected) {
1201 wpa_s->disconnected = 0;
1202 wpa_s->reassociate = 1;
1203 wpa_supplicant_req_scan(wpa_s, 0, 0);
1204 }
1205 #ifdef IEEE8021X_EAPOL
1206 } else if (os_strncmp(buf, "PREAUTH ", 8) == 0) {
1207 if (wpa_supplicant_ctrl_iface_preauth(wpa_s, buf + 8))
1208 reply_len = -1;
1209 #endif /* IEEE8021X_EAPOL */
1210 #ifdef CONFIG_PEERKEY
1211 } else if (os_strncmp(buf, "STKSTART ", 9) == 0) {
1212 if (wpa_supplicant_ctrl_iface_stkstart(wpa_s, buf + 9))
1213 reply_len = -1;
1214 #endif /* CONFIG_PEERKEY */
1215 } else if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0)
1216 {
1217 if (wpa_supplicant_ctrl_iface_ctrl_rsp(
1218 wpa_s, buf + os_strlen(WPA_CTRL_RSP)))
1219 reply_len = -1;
1220 else
1221 ctrl_rsp = 1;
1222 } else if (os_strcmp(buf, "RECONFIGURE") == 0) {
1223 if (wpa_supplicant_reload_configuration(wpa_s))
1224 reply_len = -1;
1225 } else if (os_strcmp(buf, "TERMINATE") == 0) {
1226 eloop_terminate();
1227 } else if (os_strncmp(buf, "BSSID ", 6) == 0) {
1228 if (wpa_supplicant_ctrl_iface_bssid(wpa_s, buf + 6))
1229 reply_len = -1;
1230 #ifdef ANDROID
1231 } else if (os_strncmp(buf, "BLACKLIST", 9) == 0) {
1232 reply_len = wpa_supplicant_ctrl_iface_blacklist(
1233 wpa_s, buf + 9, reply, reply_size);
1234 if (os_strlen(buf) > 10 && reply_len == 0) {
1235 struct wpa_blacklist *bl = wpa_s->blacklist;
1236 if (os_strncmp(buf+10, "clear", 5) == 0 ||
1237 (bl != NULL && os_memcmp(bl->bssid, wpa_s->bssid, ETH_ALEN) == 0)) {
1238 wpa_s->disconnected = 0;
1239 wpa_s->reassociate = 1;
1240 wpa_supplicant_req_scan(wpa_s, 0, 0);
1241 }
1242 }
1243 #endif
1244 } else if (os_strcmp(buf, "LIST_NETWORKS") == 0) {
1245 reply_len = wpa_supplicant_ctrl_iface_list_networks(
1246 wpa_s, reply, reply_size);
1247 } else if (os_strcmp(buf, "DISCONNECT") == 0) {
1248 wpa_s->reassociate = 0;
1249 wpa_s->disconnected = 1;
1250 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
1251 } else if (os_strcmp(buf, "SCAN") == 0) {
1252 wpa_s->scan_req = 2;
1253 wpa_supplicant_req_scan(wpa_s, 0, 0);
1254 } else if (os_strcmp(buf, "SCAN_RESULTS") == 0) {
1255 reply_len = wpa_supplicant_ctrl_iface_scan_results(
1256 wpa_s, reply, reply_size);
1257 } else if (os_strncmp(buf, "SELECT_NETWORK ", 15) == 0) {
1258 if (wpa_supplicant_ctrl_iface_select_network(wpa_s, buf + 15))
1259 reply_len = -1;
1260 } else if (os_strncmp(buf, "ENABLE_NETWORK ", 15) == 0) {
1261 if (wpa_supplicant_ctrl_iface_enable_network(wpa_s, buf + 15))
1262 reply_len = -1;
1263 } else if (os_strncmp(buf, "DISABLE_NETWORK ", 16) == 0) {
1264 if (wpa_supplicant_ctrl_iface_disable_network(wpa_s, buf + 16))
1265 reply_len = -1;
1266 } else if (os_strcmp(buf, "ADD_NETWORK") == 0) {
1267 reply_len = wpa_supplicant_ctrl_iface_add_network(
1268 wpa_s, reply, reply_size);
1269 } else if (os_strncmp(buf, "REMOVE_NETWORK ", 15) == 0) {
1270 if (wpa_supplicant_ctrl_iface_remove_network(wpa_s, buf + 15))
1271 reply_len = -1;
1272 } else if (os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
1273 if (wpa_supplicant_ctrl_iface_set_network(wpa_s, buf + 12))
1274 reply_len = -1;
1275 } else if (os_strncmp(buf, "GET_NETWORK ", 12) == 0) {
1276 reply_len = wpa_supplicant_ctrl_iface_get_network(
1277 wpa_s, buf + 12, reply, reply_size);
1278 } else if (os_strcmp(buf, "SAVE_CONFIG") == 0) {
1279 if (wpa_supplicant_ctrl_iface_save_config(wpa_s))
1280 reply_len = -1;
1281 } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) {
1282 reply_len = wpa_supplicant_ctrl_iface_get_capability(
1283 wpa_s, buf + 15, reply, reply_size);
1284 } else if (os_strncmp(buf, "AP_SCAN ", 8) == 0) {
1285 if (wpa_supplicant_ctrl_iface_ap_scan(wpa_s, buf + 8))
1286 reply_len = -1;
1287 } else if (os_strcmp(buf, "INTERFACES") == 0) {
1288 reply_len = wpa_supplicant_global_iface_interfaces(
1289 wpa_s->global, reply, reply_size);
1290 } else if (os_strncmp(buf, "DRIVER ", 7) == 0) {
1291 reply_len = wpa_supplicant_driver_cmd(wpa_s, buf + 7, reply, reply_size);
1292 } else {
1293 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1294 reply_len = 16;
1295 }
1296
1297 if (reply_len < 0) {
1298 os_memcpy(reply, "FAIL\n", 5);
1299 reply_len = 5;
1300 }
1301
1302 if (ctrl_rsp)
1303 eapol_sm_notify_ctrl_response(wpa_s->eapol);
1304
1305 *resp_len = reply_len;
1306 return reply;
1307 }
1308
1309
wpa_supplicant_global_iface_add(struct wpa_global * global,char * cmd)1310 static int wpa_supplicant_global_iface_add(struct wpa_global *global,
1311 char *cmd)
1312 {
1313 struct wpa_interface iface;
1314 char *pos;
1315
1316 /*
1317 * <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param>
1318 * TAB<bridge_ifname>
1319 */
1320 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd);
1321
1322 os_memset(&iface, 0, sizeof(iface));
1323
1324 do {
1325 iface.ifname = pos = cmd;
1326 pos = os_strchr(pos, '\t');
1327 if (pos)
1328 *pos++ = '\0';
1329 if (iface.ifname[0] == '\0')
1330 return -1;
1331 if (pos == NULL)
1332 break;
1333
1334 iface.confname = pos;
1335 pos = os_strchr(pos, '\t');
1336 if (pos)
1337 *pos++ = '\0';
1338 if (iface.confname[0] == '\0')
1339 iface.confname = NULL;
1340 if (pos == NULL)
1341 break;
1342
1343 iface.driver = pos;
1344 pos = os_strchr(pos, '\t');
1345 if (pos)
1346 *pos++ = '\0';
1347 if (iface.driver[0] == '\0')
1348 iface.driver = NULL;
1349 if (pos == NULL)
1350 break;
1351
1352 iface.ctrl_interface = pos;
1353 pos = os_strchr(pos, '\t');
1354 if (pos)
1355 *pos++ = '\0';
1356 if (iface.ctrl_interface[0] == '\0')
1357 iface.ctrl_interface = NULL;
1358 if (pos == NULL)
1359 break;
1360
1361 iface.driver_param = pos;
1362 pos = os_strchr(pos, '\t');
1363 if (pos)
1364 *pos++ = '\0';
1365 if (iface.driver_param[0] == '\0')
1366 iface.driver_param = NULL;
1367 if (pos == NULL)
1368 break;
1369
1370 iface.bridge_ifname = pos;
1371 pos = os_strchr(pos, '\t');
1372 if (pos)
1373 *pos++ = '\0';
1374 if (iface.bridge_ifname[0] == '\0')
1375 iface.bridge_ifname = NULL;
1376 if (pos == NULL)
1377 break;
1378 } while (0);
1379
1380 if (wpa_supplicant_get_iface(global, iface.ifname))
1381 return -1;
1382
1383 return wpa_supplicant_add_iface(global, &iface) ? 0 : -1;
1384 }
1385
1386
wpa_supplicant_global_iface_remove(struct wpa_global * global,char * cmd)1387 static int wpa_supplicant_global_iface_remove(struct wpa_global *global,
1388 char *cmd)
1389 {
1390 struct wpa_supplicant *wpa_s;
1391
1392 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd);
1393
1394 wpa_s = wpa_supplicant_get_iface(global, cmd);
1395 if (wpa_s == NULL)
1396 return -1;
1397 return wpa_supplicant_remove_iface(global, wpa_s);
1398 }
1399
1400
wpa_supplicant_global_iface_interfaces(struct wpa_global * global,char * buf,int len)1401 static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
1402 char *buf, int len)
1403 {
1404 int res;
1405 char *pos, *end;
1406 struct wpa_supplicant *wpa_s;
1407
1408 wpa_s = global->ifaces;
1409 pos = buf;
1410 end = buf + len;
1411
1412 while (wpa_s) {
1413 res = os_snprintf(pos, end - pos, "%s\n", wpa_s->ifname);
1414 if (res < 0 || res >= end - pos) {
1415 *pos = '\0';
1416 break;
1417 }
1418 pos += res;
1419 wpa_s = wpa_s->next;
1420 }
1421 return pos - buf;
1422 }
1423
1424
wpa_supplicant_global_ctrl_iface_process(struct wpa_global * global,char * buf,size_t * resp_len)1425 char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
1426 char *buf, size_t *resp_len)
1427 {
1428 char *reply;
1429 const int reply_size = 4096;
1430 int reply_len;
1431
1432 if (os_strcmp(buf, "PING") != 0)
1433 wpa_hexdump_ascii(MSG_DEBUG, "RX global ctrl_iface",
1434 (const u8 *) buf, os_strlen(buf));
1435
1436 reply = os_malloc(reply_size);
1437 if (reply == NULL) {
1438 *resp_len = 1;
1439 return NULL;
1440 }
1441
1442 os_memcpy(reply, "OK\n", 3);
1443 reply_len = 3;
1444
1445 if (os_strcmp(buf, "PING") == 0) {
1446 os_memcpy(reply, "PONG\n", 5);
1447 reply_len = 5;
1448 } else if (os_strncmp(buf, "INTERFACE_ADD ", 14) == 0) {
1449 if (wpa_supplicant_global_iface_add(global, buf + 14))
1450 reply_len = -1;
1451 } else if (os_strncmp(buf, "INTERFACE_REMOVE ", 17) == 0) {
1452 if (wpa_supplicant_global_iface_remove(global, buf + 17))
1453 reply_len = -1;
1454 } else if (os_strcmp(buf, "INTERFACES") == 0) {
1455 reply_len = wpa_supplicant_global_iface_interfaces(
1456 global, reply, reply_size);
1457 } else if (os_strcmp(buf, "TERMINATE") == 0) {
1458 eloop_terminate();
1459 } else {
1460 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1461 reply_len = 16;
1462 }
1463
1464 if (reply_len < 0) {
1465 os_memcpy(reply, "FAIL\n", 5);
1466 reply_len = 5;
1467 }
1468
1469 *resp_len = reply_len;
1470 return reply;
1471 }
1472