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MFC: An off-by-one malloc size was corrupting the installer's memory,
[dragonfly.git] / contrib / wpa_supplicant-0.5.8 / ctrl_iface.c
blobc864c91c5e03b6022c3ebea4ef37e978acf4fca3
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
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 static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant *wpa_s,
80 char *addr)
81 {
82 u8 bssid[ETH_ALEN];
83
84 if (hwaddr_aton(addr, bssid)) {
85 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH: invalid address "
86 "'%s'", addr);
87 return -1;
88 }
89
90 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH " MACSTR, MAC2STR(bssid));
91 rsn_preauth_deinit(wpa_s->wpa);
92 if (rsn_preauth_init(wpa_s->wpa, bssid, wpa_s->current_ssid))
93 return -1;
94
95 return 0;
96 }
97
98
99 #ifdef CONFIG_PEERKEY
100 /* MLME-STKSTART.request(peer) */
101 static int wpa_supplicant_ctrl_iface_stkstart(
102 struct wpa_supplicant *wpa_s, char *addr)
103 {
104 u8 peer[ETH_ALEN];
105
106 if (hwaddr_aton(addr, peer)) {
107 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART: invalid "
108 "address '%s'", peer);
109 return -1;
110 }
111
112 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART " MACSTR,
113 MAC2STR(peer));
114
115 return wpa_sm_stkstart(wpa_s->wpa, peer);
116 }
117 #endif /* CONFIG_PEERKEY */
118
119
120 static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant *wpa_s,
121 char *rsp)
122 {
123 #ifdef IEEE8021X_EAPOL
124 char *pos, *id_pos;
125 int id;
126 struct wpa_ssid *ssid;
127
128 pos = os_strchr(rsp, '-');
129 if (pos == NULL)
130 return -1;
131 *pos++ = '\0';
132 id_pos = pos;
133 pos = os_strchr(pos, ':');
134 if (pos == NULL)
135 return -1;
136 *pos++ = '\0';
137 id = atoi(id_pos);
138 wpa_printf(MSG_DEBUG, "CTRL_IFACE: field=%s id=%d", rsp, id);
139 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
140 (u8 *) pos, os_strlen(pos));
141
142 ssid = wpa_config_get_network(wpa_s->conf, id);
143 if (ssid == NULL) {
144 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
145 "to update", id);
146 return -1;
147 }
148
149 if (os_strcmp(rsp, "IDENTITY") == 0) {
150 os_free(ssid->identity);
151 ssid->identity = (u8 *) os_strdup(pos);
152 ssid->identity_len = os_strlen(pos);
153 ssid->pending_req_identity = 0;
154 if (ssid == wpa_s->current_ssid)
155 wpa_s->reassociate = 1;
156 } else if (os_strcmp(rsp, "PASSWORD") == 0) {
157 os_free(ssid->password);
158 ssid->password = (u8 *) os_strdup(pos);
159 ssid->password_len = os_strlen(pos);
160 ssid->pending_req_password = 0;
161 if (ssid == wpa_s->current_ssid)
162 wpa_s->reassociate = 1;
163 } else if (os_strcmp(rsp, "NEW_PASSWORD") == 0) {
164 os_free(ssid->new_password);
165 ssid->new_password = (u8 *) os_strdup(pos);
166 ssid->new_password_len = os_strlen(pos);
167 ssid->pending_req_new_password = 0;
168 if (ssid == wpa_s->current_ssid)
169 wpa_s->reassociate = 1;
170 } else if (os_strcmp(rsp, "PIN") == 0) {
171 os_free(ssid->pin);
172 ssid->pin = os_strdup(pos);
173 ssid->pending_req_pin = 0;
174 if (ssid == wpa_s->current_ssid)
175 wpa_s->reassociate = 1;
176 } else if (os_strcmp(rsp, "OTP") == 0) {
177 os_free(ssid->otp);
178 ssid->otp = (u8 *) os_strdup(pos);
179 ssid->otp_len = os_strlen(pos);
180 os_free(ssid->pending_req_otp);
181 ssid->pending_req_otp = NULL;
182 ssid->pending_req_otp_len = 0;
183 } else if (os_strcmp(rsp, "PASSPHRASE") == 0) {
184 os_free(ssid->private_key_passwd);
185 ssid->private_key_passwd = (u8 *) os_strdup(pos);
186 ssid->pending_req_passphrase = 0;
187 if (ssid == wpa_s->current_ssid)
188 wpa_s->reassociate = 1;
189 } else {
190 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", rsp);
191 return -1;
192 }
193
194 return 0;
195 #else /* IEEE8021X_EAPOL */
196 wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included");
197 return -1;
198 #endif /* IEEE8021X_EAPOL */
199 }
200
201
202 static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
203 const char *params,
204 char *buf, size_t buflen)
205 {
206 char *pos, *end, tmp[30];
207 int res, verbose, ret;
208
209 verbose = os_strcmp(params, "-VERBOSE") == 0;
210 pos = buf;
211 end = buf + buflen;
212 if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
213 struct wpa_ssid *ssid = wpa_s->current_ssid;
214 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n",
215 MAC2STR(wpa_s->bssid));
216 if (ret < 0 || ret >= end - pos)
217 return pos - buf;
218 pos += ret;
219 if (ssid) {
220 u8 *_ssid = ssid->ssid;
221 size_t ssid_len = ssid->ssid_len;
222 u8 ssid_buf[MAX_SSID_LEN];
223 if (ssid_len == 0) {
224 int _res = wpa_drv_get_ssid(wpa_s, ssid_buf);
225 if (_res < 0)
226 ssid_len = 0;
227 else
228 ssid_len = _res;
229 _ssid = ssid_buf;
230 }
231 ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n",
232 wpa_ssid_txt(_ssid, ssid_len),
233 ssid->id);
234 if (ret < 0 || ret >= end - pos)
235 return pos - buf;
236 pos += ret;
237
238 if (ssid->id_str) {
239 ret = os_snprintf(pos, end - pos,
240 "id_str=%s\n",
241 ssid->id_str);
242 if (ret < 0 || ret >= end - pos)
243 return pos - buf;
244 pos += ret;
245 }
246 }
247
248 pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose);
249 }
250 ret = os_snprintf(pos, end - pos, "wpa_state=%s\n",
251 wpa_supplicant_state_txt(wpa_s->wpa_state));
252 if (ret < 0 || ret >= end - pos)
253 return pos - buf;
254 pos += ret;
255
256 if (wpa_s->l2 &&
257 l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) {
258 ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp);
259 if (ret < 0 || ret >= end - pos)
260 return pos - buf;
261 pos += ret;
262 }
263
264 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
265 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
266 res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos,
267 verbose);
268 if (res >= 0)
269 pos += res;
270 }
271
272 res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose);
273 if (res >= 0)
274 pos += res;
275
276 return pos - buf;
277 }
278
279
280 static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant *wpa_s,
281 char *cmd)
282 {
283 char *pos;
284 int id;
285 struct wpa_ssid *ssid;
286 u8 bssid[ETH_ALEN];
287
288 /* cmd: "<network id> <BSSID>" */
289 pos = os_strchr(cmd, ' ');
290 if (pos == NULL)
291 return -1;
292 *pos++ = '\0';
293 id = atoi(cmd);
294 wpa_printf(MSG_DEBUG, "CTRL_IFACE: id=%d bssid='%s'", id, pos);
295 if (hwaddr_aton(pos, bssid)) {
296 wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", pos);
297 return -1;
298 }
299
300 ssid = wpa_config_get_network(wpa_s->conf, id);
301 if (ssid == NULL) {
302 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
303 "to update", id);
304 return -1;
305 }
306
307 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
308 ssid->bssid_set =
309 os_memcmp(bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) != 0;
310
311
312 return 0;
313 }
314
315
316 static int wpa_supplicant_ctrl_iface_list_networks(
317 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
318 {
319 char *pos, *end;
320 struct wpa_ssid *ssid;
321 int ret;
322
323 pos = buf;
324 end = buf + buflen;
325 ret = os_snprintf(pos, end - pos,
326 "network id / ssid / bssid / flags\n");
327 if (ret < 0 || ret >= end - pos)
328 return pos - buf;
329 pos += ret;
330
331 ssid = wpa_s->conf->ssid;
332 while (ssid) {
333 ret = os_snprintf(pos, end - pos, "%d\t%s",
334 ssid->id,
335 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
336 if (ret < 0 || ret >= end - pos)
337 return pos - buf;
338 pos += ret;
339 if (ssid->bssid_set) {
340 ret = os_snprintf(pos, end - pos, "\t" MACSTR,
341 MAC2STR(ssid->bssid));
342 } else {
343 ret = os_snprintf(pos, end - pos, "\tany");
344 }
345 if (ret < 0 || ret >= end - pos)
346 return pos - buf;
347 pos += ret;
348 ret = os_snprintf(pos, end - pos, "\t%s%s",
349 ssid == wpa_s->current_ssid ?
350 "[CURRENT]" : "",
351 ssid->disabled ? "[DISABLED]" : "");
352 if (ret < 0 || ret >= end - pos)
353 return pos - buf;
354 pos += ret;
355 ret = os_snprintf(pos, end - pos, "\n");
356 if (ret < 0 || ret >= end - pos)
357 return pos - buf;
358 pos += ret;
359
360 ssid = ssid->next;
361 }
362
363 return pos - buf;
364 }
365
366
367 static char * wpa_supplicant_cipher_txt(char *pos, char *end, int cipher)
368 {
369 int first = 1, ret;
370 ret = os_snprintf(pos, end - pos, "-");
371 if (ret < 0 || ret >= end - pos)
372 return pos;
373 pos += ret;
374 if (cipher & WPA_CIPHER_NONE) {
375 ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : "+");
376 if (ret < 0 || ret >= end - pos)
377 return pos;
378 pos += ret;
379 first = 0;
380 }
381 if (cipher & WPA_CIPHER_WEP40) {
382 ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : "+");
383 if (ret < 0 || ret >= end - pos)
384 return pos;
385 pos += ret;
386 first = 0;
387 }
388 if (cipher & WPA_CIPHER_WEP104) {
389 ret = os_snprintf(pos, end - pos, "%sWEP104",
390 first ? "" : "+");
391 if (ret < 0 || ret >= end - pos)
392 return pos;
393 pos += ret;
394 first = 0;
395 }
396 if (cipher & WPA_CIPHER_TKIP) {
397 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : "+");
398 if (ret < 0 || ret >= end - pos)
399 return pos;
400 pos += ret;
401 first = 0;
402 }
403 if (cipher & WPA_CIPHER_CCMP) {
404 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : "+");
405 if (ret < 0 || ret >= end - pos)
406 return pos;
407 pos += ret;
408 first = 0;
409 }
410 return pos;
411 }
412
413
414 static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto,
415 const u8 *ie, size_t ie_len)
416 {
417 struct wpa_ie_data data;
418 int first, ret;
419
420 ret = os_snprintf(pos, end - pos, "[%s-", proto);
421 if (ret < 0 || ret >= end - pos)
422 return pos;
423 pos += ret;
424
425 if (wpa_parse_wpa_ie(ie, ie_len, &data) < 0) {
426 ret = os_snprintf(pos, end - pos, "?]");
427 if (ret < 0 || ret >= end - pos)
428 return pos;
429 pos += ret;
430 return pos;
431 }
432
433 first = 1;
434 if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
435 ret = os_snprintf(pos, end - pos, "%sEAP", first ? "" : "+");
436 if (ret < 0 || ret >= end - pos)
437 return pos;
438 pos += ret;
439 first = 0;
440 }
441 if (data.key_mgmt & WPA_KEY_MGMT_PSK) {
442 ret = os_snprintf(pos, end - pos, "%sPSK", first ? "" : "+");
443 if (ret < 0 || ret >= end - pos)
444 return pos;
445 pos += ret;
446 first = 0;
447 }
448 if (data.key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
449 ret = os_snprintf(pos, end - pos, "%sNone", first ? "" : "+");
450 if (ret < 0 || ret >= end - pos)
451 return pos;
452 pos += ret;
453 first = 0;
454 }
455
456 pos = wpa_supplicant_cipher_txt(pos, end, data.pairwise_cipher);
457
458 if (data.capabilities & WPA_CAPABILITY_PREAUTH) {
459 ret = os_snprintf(pos, end - pos, "-preauth");
460 if (ret < 0 || ret >= end - pos)
461 return pos;
462 pos += ret;
463 }
464
465 ret = os_snprintf(pos, end - pos, "]");
466 if (ret < 0 || ret >= end - pos)
467 return pos;
468 pos += ret;
469
470 return pos;
471 }
472
473
474 static int wpa_supplicant_ctrl_iface_scan_results(
475 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
476 {
477 char *pos, *end;
478 struct wpa_scan_result *res;
479 int i, ret;
480
481 if (wpa_s->scan_results == NULL &&
482 wpa_supplicant_get_scan_results(wpa_s) < 0)
483 return 0;
484 if (wpa_s->scan_results == NULL)
485 return 0;
486
487 pos = buf;
488 end = buf + buflen;
489 ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / "
490 "flags / ssid\n");
491 if (ret < 0 || ret >= end - pos)
492 return pos - buf;
493 pos += ret;
494
495 for (i = 0; i < wpa_s->num_scan_results; i++) {
496 res = &wpa_s->scan_results[i];
497 ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
498 MAC2STR(res->bssid), res->freq, res->level);
499 if (ret < 0 || ret >= end - pos)
500 return pos - buf;
501 pos += ret;
502 if (res->wpa_ie_len) {
503 pos = wpa_supplicant_ie_txt(pos, end, "WPA",
504 res->wpa_ie,
505 res->wpa_ie_len);
506 }
507 if (res->rsn_ie_len) {
508 pos = wpa_supplicant_ie_txt(pos, end, "WPA2",
509 res->rsn_ie,
510 res->rsn_ie_len);
511 }
512 if (!res->wpa_ie_len && !res->rsn_ie_len &&
513 res->caps & IEEE80211_CAP_PRIVACY) {
514 ret = os_snprintf(pos, end - pos, "[WEP]");
515 if (ret < 0 || ret >= end - pos)
516 return pos - buf;
517 pos += ret;
518 }
519 if (res->caps & IEEE80211_CAP_IBSS) {
520 ret = os_snprintf(pos, end - pos, "[IBSS]");
521 if (ret < 0 || ret >= end - pos)
522 return pos - buf;
523 pos += ret;
524 }
525
526 ret = os_snprintf(pos, end - pos, "\t%s",
527 wpa_ssid_txt(res->ssid, res->ssid_len));
528 if (ret < 0 || ret >= end - pos)
529 return pos - buf;
530 pos += ret;
531
532 ret = os_snprintf(pos, end - pos, "\n");
533 if (ret < 0 || ret >= end - pos)
534 return pos - buf;
535 pos += ret;
536 }
537
538 return pos - buf;
539 }
540
541
542 static int wpa_supplicant_ctrl_iface_select_network(
543 struct wpa_supplicant *wpa_s, char *cmd)
544 {
545 int id;
546 struct wpa_ssid *ssid;
547
548 /* cmd: "<network id>" or "any" */
549 if (os_strcmp(cmd, "any") == 0) {
550 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK any");
551 ssid = wpa_s->conf->ssid;
552 while (ssid) {
553 ssid->disabled = 0;
554 ssid = ssid->next;
555 }
556 wpa_s->reassociate = 1;
557 wpa_supplicant_req_scan(wpa_s, 0, 0);
558 return 0;
559 }
560
561 id = atoi(cmd);
562 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK id=%d", id);
563
564 ssid = wpa_config_get_network(wpa_s->conf, id);
565 if (ssid == NULL) {
566 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
567 "id=%d", id);
568 return -1;
569 }
570
571 if (ssid != wpa_s->current_ssid && wpa_s->current_ssid)
572 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
573
574 /* Mark all other networks disabled and trigger reassociation */
575 ssid = wpa_s->conf->ssid;
576 while (ssid) {
577 ssid->disabled = id != ssid->id;
578 ssid = ssid->next;
579 }
580 wpa_s->reassociate = 1;
581 wpa_supplicant_req_scan(wpa_s, 0, 0);
582
583 return 0;
584 }
585
586
587 static int wpa_supplicant_ctrl_iface_enable_network(
588 struct wpa_supplicant *wpa_s, char *cmd)
589 {
590 int id;
591 struct wpa_ssid *ssid;
592
593 /* cmd: "<network id>" */
594 id = atoi(cmd);
595 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK id=%d", id);
596
597 ssid = wpa_config_get_network(wpa_s->conf, id);
598 if (ssid == NULL) {
599 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
600 "id=%d", id);
601 return -1;
602 }
603
604 if (wpa_s->current_ssid == NULL && ssid->disabled) {
605 /*
606 * Try to reassociate since there is no current configuration
607 * and a new network was made available. */
608 wpa_s->reassociate = 1;
609 wpa_supplicant_req_scan(wpa_s, 0, 0);
610 }
611 ssid->disabled = 0;
612
613 return 0;
614 }
615
616
617 static int wpa_supplicant_ctrl_iface_disable_network(
618 struct wpa_supplicant *wpa_s, char *cmd)
619 {
620 int id;
621 struct wpa_ssid *ssid;
622
623 /* cmd: "<network id>" */
624 id = atoi(cmd);
625 wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK id=%d", id);
626
627 ssid = wpa_config_get_network(wpa_s->conf, id);
628 if (ssid == NULL) {
629 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
630 "id=%d", id);
631 return -1;
632 }
633
634 if (ssid == wpa_s->current_ssid)
635 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
636 ssid->disabled = 1;
637
638 return 0;
639 }
640
641
642 static int wpa_supplicant_ctrl_iface_add_network(
643 struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
644 {
645 struct wpa_ssid *ssid;
646 int ret;
647
648 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ADD_NETWORK");
649
650 ssid = wpa_config_add_network(wpa_s->conf);
651 if (ssid == NULL)
652 return -1;
653 ssid->disabled = 1;
654 wpa_config_set_network_defaults(ssid);
655
656 ret = os_snprintf(buf, buflen, "%d\n", ssid->id);
657 if (ret < 0 || (size_t) ret >= buflen)
658 return -1;
659 return ret;
660 }
661
662
663 static int wpa_supplicant_ctrl_iface_remove_network(
664 struct wpa_supplicant *wpa_s, char *cmd)
665 {
666 int id;
667 struct wpa_ssid *ssid;
668
669 /* cmd: "<network id>" */
670 id = atoi(cmd);
671 wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK id=%d", id);
672
673 ssid = wpa_config_get_network(wpa_s->conf, id);
674 if (ssid == NULL ||
675 wpa_config_remove_network(wpa_s->conf, id) < 0) {
676 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
677 "id=%d", id);
678 return -1;
679 }
680
681 if (ssid == wpa_s->current_ssid) {
682 /*
683 * Invalidate the EAP session cache if the current network is
684 * removed.
685 */
686 eapol_sm_invalidate_cached_session(wpa_s->eapol);
687
688 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
689 }
690
691 return 0;
692 }
693
694
695 static int wpa_supplicant_ctrl_iface_set_network(
696 struct wpa_supplicant *wpa_s, char *cmd)
697 {
698 int id;
699 struct wpa_ssid *ssid;
700 char *name, *value;
701
702 /* cmd: "<network id> <variable name> <value>" */
703 name = os_strchr(cmd, ' ');
704 if (name == NULL)
705 return -1;
706 *name++ = '\0';
707
708 value = os_strchr(name, ' ');
709 if (value == NULL)
710 return -1;
711 *value++ = '\0';
712
713 id = atoi(cmd);
714 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SET_NETWORK id=%d name='%s'",
715 id, name);
716 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
717 (u8 *) value, os_strlen(value));
718
719 ssid = wpa_config_get_network(wpa_s->conf, id);
720 if (ssid == NULL) {
721 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
722 "id=%d", id);
723 return -1;
724 }
725
726 if (wpa_config_set(ssid, name, value, 0) < 0) {
727 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to set network "
728 "variable '%s'", name);
729 return -1;
730 }
731
732 if (wpa_s->current_ssid == ssid) {
733 /*
734 * Invalidate the EAP session cache if anything in the current
735 * configuration changes.
736 */
737 eapol_sm_invalidate_cached_session(wpa_s->eapol);
738 }
739
740 if ((os_strcmp(name, "psk") == 0 &&
741 value[0] == '"' && ssid->ssid_len) ||
742 (os_strcmp(name, "ssid") == 0 && ssid->passphrase))
743 wpa_config_update_psk(ssid);
744
745 return 0;
746 }
747
748
749 static int wpa_supplicant_ctrl_iface_get_network(
750 struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen)
751 {
752 int id;
753 struct wpa_ssid *ssid;
754 char *name, *value;
755
756 /* cmd: "<network id> <variable name>" */
757 name = os_strchr(cmd, ' ');
758 if (name == NULL || buflen == 0)
759 return -1;
760 *name++ = '\0';
761
762 id = atoi(cmd);
763 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_NETWORK id=%d name='%s'",
764 id, name);
765
766 ssid = wpa_config_get_network(wpa_s->conf, id);
767 if (ssid == NULL) {
768 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network "
769 "id=%d", id);
770 return -1;
771 }
772
773 value = wpa_config_get_no_key(ssid, name);
774 if (value == NULL) {
775 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to get network "
776 "variable '%s'", name);
777 return -1;
778 }
779
780 os_snprintf(buf, buflen, "%s", value);
781 buf[buflen - 1] = '\0';
782
783 os_free(value);
784
785 return os_strlen(buf);
786 }
787
788
789 static int wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant *wpa_s)
790 {
791 int ret;
792
793 if (!wpa_s->conf->update_config) {
794 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Not allowed "
795 "to update configuration (update_config=0)");
796 return -1;
797 }
798
799 ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
800 if (ret) {
801 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Failed to "
802 "update configuration");
803 } else {
804 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Configuration"
805 " updated");
806 }
807
808 return ret;
809 }
810
811
812 static int wpa_supplicant_ctrl_iface_get_capability(
813 struct wpa_supplicant *wpa_s, const char *_field, char *buf,
814 size_t buflen)
815 {
816 struct wpa_driver_capa capa;
817 int res, first = 1, ret;
818 char *pos, *end, *strict;
819 char field[30];
820
821 /* Determine whether or not strict checking was requested */
822 os_snprintf(field, sizeof(field), "%s", _field);
823 field[sizeof(field) - 1] = '\0';
824 strict = os_strchr(field, ' ');
825 if (strict != NULL) {
826 *strict++ = '\0';
827 if (os_strcmp(strict, "strict") != 0)
828 return -1;
829 }
830
831 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
832 field, strict ? strict : "");
833
834 if (os_strcmp(field, "eap") == 0) {
835 return eap_get_names(buf, buflen);
836 }
837
838 res = wpa_drv_get_capa(wpa_s, &capa);
839
840 pos = buf;
841 end = pos + buflen;
842
843 if (os_strcmp(field, "pairwise") == 0) {
844 if (res < 0) {
845 if (strict)
846 return 0;
847 ret = os_snprintf(buf, buflen, "CCMP TKIP NONE");
848 if (ret < 0 || (size_t) ret >= buflen)
849 return -1;
850 return ret;
851 }
852
853 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
854 ret = os_snprintf(pos, end - pos, "%sCCMP",
855 first ? "" : " ");
856 if (ret < 0 || ret >= end - pos)
857 return pos - buf;
858 pos += ret;
859 first = 0;
860 }
861
862 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
863 ret = os_snprintf(pos, end - pos, "%sTKIP",
864 first ? "" : " ");
865 if (ret < 0 || ret >= end - pos)
866 return pos - buf;
867 pos += ret;
868 first = 0;
869 }
870
871 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
872 ret = os_snprintf(pos, end - pos, "%sNONE",
873 first ? "" : " ");
874 if (ret < 0 || ret >= end - pos)
875 return pos - buf;
876 pos += ret;
877 first = 0;
878 }
879
880 return pos - buf;
881 }
882
883 if (os_strcmp(field, "group") == 0) {
884 if (res < 0) {
885 if (strict)
886 return 0;
887 ret = os_snprintf(buf, buflen,
888 "CCMP TKIP WEP104 WEP40");
889 if (ret < 0 || (size_t) ret >= buflen)
890 return -1;
891 return ret;
892 }
893
894 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
895 ret = os_snprintf(pos, end - pos, "%sCCMP",
896 first ? "" : " ");
897 if (ret < 0 || ret >= end - pos)
898 return pos - buf;
899 pos += ret;
900 first = 0;
901 }
902
903 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
904 ret = os_snprintf(pos, end - pos, "%sTKIP",
905 first ? "" : " ");
906 if (ret < 0 || ret >= end - pos)
907 return pos - buf;
908 pos += ret;
909 first = 0;
910 }
911
912 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
913 ret = os_snprintf(pos, end - pos, "%sWEP104",
914 first ? "" : " ");
915 if (ret < 0 || ret >= end - pos)
916 return pos - buf;
917 pos += ret;
918 first = 0;
919 }
920
921 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
922 ret = os_snprintf(pos, end - pos, "%sWEP40",
923 first ? "" : " ");
924 if (ret < 0 || ret >= end - pos)
925 return pos - buf;
926 pos += ret;
927 first = 0;
928 }
929
930 return pos - buf;
931 }
932
933 if (os_strcmp(field, "key_mgmt") == 0) {
934 if (res < 0) {
935 if (strict)
936 return 0;
937 ret = os_snprintf(buf, buflen, "WPA-PSK WPA-EAP "
938 "IEEE8021X WPA-NONE NONE");
939 if (ret < 0 || (size_t) ret >= buflen)
940 return -1;
941 return ret;
942 }
943
944 ret = os_snprintf(pos, end - pos, "NONE IEEE8021X");
945 if (ret < 0 || ret >= end - pos)
946 return pos - buf;
947 pos += ret;
948
949 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
950 WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
951 ret = os_snprintf(pos, end - pos, " WPA-EAP");
952 if (ret < 0 || ret >= end - pos)
953 return pos - buf;
954 pos += ret;
955 }
956
957 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
958 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
959 ret = os_snprintf(pos, end - pos, " WPA-PSK");
960 if (ret < 0 || ret >= end - pos)
961 return pos - buf;
962 pos += ret;
963 }
964
965 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
966 ret = os_snprintf(pos, end - pos, " WPA-NONE");
967 if (ret < 0 || ret >= end - pos)
968 return pos - buf;
969 pos += ret;
970 }
971
972 return pos - buf;
973 }
974
975 if (os_strcmp(field, "proto") == 0) {
976 if (res < 0) {
977 if (strict)
978 return 0;
979 ret = os_snprintf(buf, buflen, "RSN WPA");
980 if (ret < 0 || (size_t) ret >= buflen)
981 return -1;
982 return ret;
983 }
984
985 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
986 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
987 ret = os_snprintf(pos, end - pos, "%sRSN",
988 first ? "" : " ");
989 if (ret < 0 || ret >= end - pos)
990 return pos - buf;
991 pos += ret;
992 first = 0;
993 }
994
995 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
996 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
997 ret = os_snprintf(pos, end - pos, "%sWPA",
998 first ? "" : " ");
999 if (ret < 0 || ret >= end - pos)
1000 return pos - buf;
1001 pos += ret;
1002 first = 0;
1003 }
1004
1005 return pos - buf;
1006 }
1007
1008 if (os_strcmp(field, "auth_alg") == 0) {
1009 if (res < 0) {
1010 if (strict)
1011 return 0;
1012 ret = os_snprintf(buf, buflen, "OPEN SHARED LEAP");
1013 if (ret < 0 || (size_t) ret >= buflen)
1014 return -1;
1015 return ret;
1016 }
1017
1018 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
1019 ret = os_snprintf(pos, end - pos, "%sOPEN",
1020 first ? "" : " ");
1021 if (ret < 0 || ret >= end - pos)
1022 return pos - buf;
1023 pos += ret;
1024 first = 0;
1025 }
1026
1027 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
1028 ret = os_snprintf(pos, end - pos, "%sSHARED",
1029 first ? "" : " ");
1030 if (ret < 0 || ret >= end - pos)
1031 return pos - buf;
1032 pos += ret;
1033 first = 0;
1034 }
1035
1036 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
1037 ret = os_snprintf(pos, end - pos, "%sLEAP",
1038 first ? "" : " ");
1039 if (ret < 0 || ret >= end - pos)
1040 return pos - buf;
1041 pos += ret;
1042 first = 0;
1043 }
1044
1045 return pos - buf;
1046 }
1047
1048 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
1049 field);
1050
1051 return -1;
1052 }
1053
1054
1055 static int wpa_supplicant_ctrl_iface_ap_scan(
1056 struct wpa_supplicant *wpa_s, char *cmd)
1057 {
1058 int ap_scan = atoi(cmd);
1059
1060 if (ap_scan < 0 || ap_scan > 2)
1061 return -1;
1062 wpa_s->conf->ap_scan = ap_scan;
1063 return 0;
1064 }
1065
1066
1067 char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
1068 char *buf, size_t *resp_len)
1069 {
1070 char *reply;
1071 const int reply_size = 2048;
1072 int ctrl_rsp = 0;
1073 int reply_len;
1074
1075 if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0 ||
1076 os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
1077 wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface",
1078 (const u8 *) buf, os_strlen(buf));
1079 } else {
1080 wpa_hexdump_ascii(MSG_DEBUG, "RX ctrl_iface",
1081 (const u8 *) buf, os_strlen(buf));
1082 }
1083
1084 reply = os_malloc(reply_size);
1085 if (reply == NULL) {
1086 *resp_len = 1;
1087 return NULL;
1088 }
1089
1090 os_memcpy(reply, "OK\n", 3);
1091 reply_len = 3;
1092
1093 if (os_strcmp(buf, "PING") == 0) {
1094 os_memcpy(reply, "PONG\n", 5);
1095 reply_len = 5;
1096 } else if (os_strcmp(buf, "MIB") == 0) {
1097 reply_len = wpa_sm_get_mib(wpa_s->wpa, reply, reply_size);
1098 if (reply_len >= 0) {
1099 int res;
1100 res = eapol_sm_get_mib(wpa_s->eapol, reply + reply_len,
1101 reply_size - reply_len);
1102 if (res < 0)
1103 reply_len = -1;
1104 else
1105 reply_len += res;
1106 }
1107 } else if (os_strncmp(buf, "STATUS", 6) == 0) {
1108 reply_len = wpa_supplicant_ctrl_iface_status(
1109 wpa_s, buf + 6, reply, reply_size);
1110 } else if (os_strcmp(buf, "PMKSA") == 0) {
1111 reply_len = pmksa_cache_list(wpa_s->wpa, reply, reply_size);
1112 } else if (os_strncmp(buf, "SET ", 4) == 0) {
1113 if (wpa_supplicant_ctrl_iface_set(wpa_s, buf + 4))
1114 reply_len = -1;
1115 } else if (os_strcmp(buf, "LOGON") == 0) {
1116 eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
1117 } else if (os_strcmp(buf, "LOGOFF") == 0) {
1118 eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
1119 } else if (os_strcmp(buf, "REASSOCIATE") == 0) {
1120 wpa_s->disconnected = 0;
1121 wpa_s->reassociate = 1;
1122 wpa_supplicant_req_scan(wpa_s, 0, 0);
1123 } else if (os_strncmp(buf, "PREAUTH ", 8) == 0) {
1124 if (wpa_supplicant_ctrl_iface_preauth(wpa_s, buf + 8))
1125 reply_len = -1;
1126 #ifdef CONFIG_PEERKEY
1127 } else if (os_strncmp(buf, "STKSTART ", 9) == 0) {
1128 if (wpa_supplicant_ctrl_iface_stkstart(wpa_s, buf + 9))
1129 reply_len = -1;
1130 #endif /* CONFIG_PEERKEY */
1131 } else if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0)
1132 {
1133 if (wpa_supplicant_ctrl_iface_ctrl_rsp(
1134 wpa_s, buf + os_strlen(WPA_CTRL_RSP)))
1135 reply_len = -1;
1136 else
1137 ctrl_rsp = 1;
1138 } else if (os_strcmp(buf, "RECONFIGURE") == 0) {
1139 if (wpa_supplicant_reload_configuration(wpa_s))
1140 reply_len = -1;
1141 } else if (os_strcmp(buf, "TERMINATE") == 0) {
1142 eloop_terminate();
1143 } else if (os_strncmp(buf, "BSSID ", 6) == 0) {
1144 if (wpa_supplicant_ctrl_iface_bssid(wpa_s, buf + 6))
1145 reply_len = -1;
1146 } else if (os_strcmp(buf, "LIST_NETWORKS") == 0) {
1147 reply_len = wpa_supplicant_ctrl_iface_list_networks(
1148 wpa_s, reply, reply_size);
1149 } else if (os_strcmp(buf, "DISCONNECT") == 0) {
1150 wpa_s->disconnected = 1;
1151 wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
1152 } else if (os_strcmp(buf, "SCAN") == 0) {
1153 wpa_s->scan_req = 2;
1154 wpa_supplicant_req_scan(wpa_s, 0, 0);
1155 } else if (os_strcmp(buf, "SCAN_RESULTS") == 0) {
1156 reply_len = wpa_supplicant_ctrl_iface_scan_results(
1157 wpa_s, reply, reply_size);
1158 } else if (os_strncmp(buf, "SELECT_NETWORK ", 15) == 0) {
1159 if (wpa_supplicant_ctrl_iface_select_network(wpa_s, buf + 15))
1160 reply_len = -1;
1161 } else if (os_strncmp(buf, "ENABLE_NETWORK ", 15) == 0) {
1162 if (wpa_supplicant_ctrl_iface_enable_network(wpa_s, buf + 15))
1163 reply_len = -1;
1164 } else if (os_strncmp(buf, "DISABLE_NETWORK ", 16) == 0) {
1165 if (wpa_supplicant_ctrl_iface_disable_network(wpa_s, buf + 16))
1166 reply_len = -1;
1167 } else if (os_strcmp(buf, "ADD_NETWORK") == 0) {
1168 reply_len = wpa_supplicant_ctrl_iface_add_network(
1169 wpa_s, reply, reply_size);
1170 } else if (os_strncmp(buf, "REMOVE_NETWORK ", 15) == 0) {
1171 if (wpa_supplicant_ctrl_iface_remove_network(wpa_s, buf + 15))
1172 reply_len = -1;
1173 } else if (os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
1174 if (wpa_supplicant_ctrl_iface_set_network(wpa_s, buf + 12))
1175 reply_len = -1;
1176 } else if (os_strncmp(buf, "GET_NETWORK ", 12) == 0) {
1177 reply_len = wpa_supplicant_ctrl_iface_get_network(
1178 wpa_s, buf + 12, reply, reply_size);
1179 } else if (os_strcmp(buf, "SAVE_CONFIG") == 0) {
1180 if (wpa_supplicant_ctrl_iface_save_config(wpa_s))
1181 reply_len = -1;
1182 } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) {
1183 reply_len = wpa_supplicant_ctrl_iface_get_capability(
1184 wpa_s, buf + 15, reply, reply_size);
1185 } else if (os_strncmp(buf, "AP_SCAN ", 8) == 0) {
1186 if (wpa_supplicant_ctrl_iface_ap_scan(wpa_s, buf + 8))
1187 reply_len = -1;
1188 } else if (os_strcmp(buf, "INTERFACES") == 0) {
1189 reply_len = wpa_supplicant_global_iface_interfaces(
1190 wpa_s->global, reply, reply_size);
1191 } else {
1192 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1193 reply_len = 16;
1194 }
1195
1196 if (reply_len < 0) {
1197 os_memcpy(reply, "FAIL\n", 5);
1198 reply_len = 5;
1199 }
1200
1201 if (ctrl_rsp)
1202 eapol_sm_notify_ctrl_response(wpa_s->eapol);
1203
1204 *resp_len = reply_len;
1205 return reply;
1206 }
1207
1208
1209 static int wpa_supplicant_global_iface_add(struct wpa_global *global,
1210 char *cmd)
1211 {
1212 struct wpa_interface iface;
1213 char *pos;
1214
1215 /*
1216 * <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param>
1217 * TAB<bridge_ifname>
1218 */
1219 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd);
1220
1221 os_memset(&iface, 0, sizeof(iface));
1222
1223 do {
1224 iface.ifname = pos = cmd;
1225 pos = os_strchr(pos, '\t');
1226 if (pos)
1227 *pos++ = '\0';
1228 if (iface.ifname[0] == '\0')
1229 return -1;
1230 if (pos == NULL)
1231 break;
1232
1233 iface.confname = pos;
1234 pos = os_strchr(pos, '\t');
1235 if (pos)
1236 *pos++ = '\0';
1237 if (iface.confname[0] == '\0')
1238 iface.confname = NULL;
1239 if (pos == NULL)
1240 break;
1241
1242 iface.driver = pos;
1243 pos = os_strchr(pos, '\t');
1244 if (pos)
1245 *pos++ = '\0';
1246 if (iface.driver[0] == '\0')
1247 iface.driver = NULL;
1248 if (pos == NULL)
1249 break;
1250
1251 iface.ctrl_interface = pos;
1252 pos = os_strchr(pos, '\t');
1253 if (pos)
1254 *pos++ = '\0';
1255 if (iface.ctrl_interface[0] == '\0')
1256 iface.ctrl_interface = NULL;
1257 if (pos == NULL)
1258 break;
1259
1260 iface.driver_param = pos;
1261 pos = os_strchr(pos, '\t');
1262 if (pos)
1263 *pos++ = '\0';
1264 if (iface.driver_param[0] == '\0')
1265 iface.driver_param = NULL;
1266 if (pos == NULL)
1267 break;
1268
1269 iface.bridge_ifname = pos;
1270 pos = os_strchr(pos, '\t');
1271 if (pos)
1272 *pos++ = '\0';
1273 if (iface.bridge_ifname[0] == '\0')
1274 iface.bridge_ifname = NULL;
1275 if (pos == NULL)
1276 break;
1277 } while (0);
1278
1279 if (wpa_supplicant_get_iface(global, iface.ifname))
1280 return -1;
1281
1282 return wpa_supplicant_add_iface(global, &iface) ? 0 : -1;
1283 }
1284
1285
1286 static int wpa_supplicant_global_iface_remove(struct wpa_global *global,
1287 char *cmd)
1288 {
1289 struct wpa_supplicant *wpa_s;
1290
1291 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd);
1292
1293 wpa_s = wpa_supplicant_get_iface(global, cmd);
1294 if (wpa_s == NULL)
1295 return -1;
1296 return wpa_supplicant_remove_iface(global, wpa_s);
1297 }
1298
1299
1300 static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
1301 char *buf, int len)
1302 {
1303 int res;
1304 char *pos, *end;
1305 struct wpa_supplicant *wpa_s;
1306
1307 wpa_s = global->ifaces;
1308 pos = buf;
1309 end = buf + len;
1310
1311 while (wpa_s) {
1312 res = os_snprintf(pos, end - pos, "%s\n", wpa_s->ifname);
1313 if (res < 0 || res >= end - pos) {
1314 *pos = '\0';
1315 break;
1316 }
1317 pos += res;
1318 wpa_s = wpa_s->next;
1319 }
1320 return pos - buf;
1321 }
1322
1323
1324 char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
1325 char *buf, size_t *resp_len)
1326 {
1327 char *reply;
1328 const int reply_size = 2048;
1329 int reply_len;
1330
1331 wpa_hexdump_ascii(MSG_DEBUG, "RX global ctrl_iface",
1332 (const u8 *) buf, os_strlen(buf));
1333
1334 reply = os_malloc(reply_size);
1335 if (reply == NULL) {
1336 *resp_len = 1;
1337 return NULL;
1338 }
1339
1340 os_memcpy(reply, "OK\n", 3);
1341 reply_len = 3;
1342
1343 if (os_strcmp(buf, "PING") == 0) {
1344 os_memcpy(reply, "PONG\n", 5);
1345 reply_len = 5;
1346 } else if (os_strncmp(buf, "INTERFACE_ADD ", 14) == 0) {
1347 if (wpa_supplicant_global_iface_add(global, buf + 14))
1348 reply_len = -1;
1349 } else if (os_strncmp(buf, "INTERFACE_REMOVE ", 17) == 0) {
1350 if (wpa_supplicant_global_iface_remove(global, buf + 17))
1351 reply_len = -1;
1352 } else if (os_strcmp(buf, "INTERFACES") == 0) {
1353 reply_len = wpa_supplicant_global_iface_interfaces(
1354 global, reply, reply_size);
1355 } else if (os_strcmp(buf, "TERMINATE") == 0) {
1356 eloop_terminate();
1357 } else {
1358 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1359 reply_len = 16;
1360 }
1361
1362 if (reply_len < 0) {
1363 os_memcpy(reply, "FAIL\n", 5);
1364 reply_len = 5;
1365 }
1366
1367 *resp_len = reply_len;
1368 return reply;
1369 }
DragonFly BSD