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[thirdparty/hostap.git] / hostapd / ctrl_iface.c
1 /*
2 * hostapd / UNIX domain socket -based control interface
3 * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "utils/includes.h"
10
11 #ifndef CONFIG_NATIVE_WINDOWS
12
13 #ifdef CONFIG_TESTING_OPTIONS
14 #include <net/ethernet.h>
15 #include <netinet/ip.h>
16 #endif /* CONFIG_TESTING_OPTIONS */
17
18 #include <sys/un.h>
19 #include <sys/stat.h>
20 #include <stddef.h>
21
22 #include "utils/common.h"
23 #include "utils/eloop.h"
24 #include "common/version.h"
25 #include "common/ieee802_11_defs.h"
26 #include "crypto/tls.h"
27 #include "drivers/driver.h"
28 #include "eapol_auth/eapol_auth_sm.h"
29 #include "radius/radius_client.h"
30 #include "radius/radius_server.h"
31 #include "l2_packet/l2_packet.h"
32 #include "ap/hostapd.h"
33 #include "ap/ap_config.h"
34 #include "ap/ieee802_1x.h"
35 #include "ap/wpa_auth.h"
36 #include "ap/ieee802_11.h"
37 #include "ap/sta_info.h"
38 #include "ap/wps_hostapd.h"
39 #include "ap/ctrl_iface_ap.h"
40 #include "ap/ap_drv_ops.h"
41 #include "ap/hs20.h"
42 #include "ap/wnm_ap.h"
43 #include "ap/wpa_auth.h"
44 #include "ap/beacon.h"
45 #include "wps/wps_defs.h"
46 #include "wps/wps.h"
47 #include "fst/fst_ctrl_iface.h"
48 #include "config_file.h"
49 #include "ctrl_iface.h"
50
51
52 #define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256
53
54 struct wpa_ctrl_dst {
55 struct wpa_ctrl_dst *next;
56 struct sockaddr_un addr;
57 socklen_t addrlen;
58 int debug_level;
59 int errors;
60 };
61
62
63 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
64 enum wpa_msg_type type,
65 const char *buf, size_t len);
66
67
68 static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd,
69 struct sockaddr_un *from,
70 socklen_t fromlen)
71 {
72 struct wpa_ctrl_dst *dst;
73
74 dst = os_zalloc(sizeof(*dst));
75 if (dst == NULL)
76 return -1;
77 os_memcpy(&dst->addr, from, sizeof(struct sockaddr_un));
78 dst->addrlen = fromlen;
79 dst->debug_level = MSG_INFO;
80 dst->next = hapd->ctrl_dst;
81 hapd->ctrl_dst = dst;
82 wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor attached",
83 (u8 *) from->sun_path,
84 fromlen - offsetof(struct sockaddr_un, sun_path));
85 return 0;
86 }
87
88
89 static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd,
90 struct sockaddr_un *from,
91 socklen_t fromlen)
92 {
93 struct wpa_ctrl_dst *dst, *prev = NULL;
94
95 dst = hapd->ctrl_dst;
96 while (dst) {
97 if (fromlen == dst->addrlen &&
98 os_memcmp(from->sun_path, dst->addr.sun_path,
99 fromlen - offsetof(struct sockaddr_un, sun_path))
100 == 0) {
101 wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor detached",
102 (u8 *) from->sun_path,
103 fromlen -
104 offsetof(struct sockaddr_un, sun_path));
105 if (prev == NULL)
106 hapd->ctrl_dst = dst->next;
107 else
108 prev->next = dst->next;
109 os_free(dst);
110 return 0;
111 }
112 prev = dst;
113 dst = dst->next;
114 }
115 return -1;
116 }
117
118
119 static int hostapd_ctrl_iface_level(struct hostapd_data *hapd,
120 struct sockaddr_un *from,
121 socklen_t fromlen,
122 char *level)
123 {
124 struct wpa_ctrl_dst *dst;
125
126 wpa_printf(MSG_DEBUG, "CTRL_IFACE LEVEL %s", level);
127
128 dst = hapd->ctrl_dst;
129 while (dst) {
130 if (fromlen == dst->addrlen &&
131 os_memcmp(from->sun_path, dst->addr.sun_path,
132 fromlen - offsetof(struct sockaddr_un, sun_path))
133 == 0) {
134 wpa_hexdump(MSG_DEBUG, "CTRL_IFACE changed monitor "
135 "level", (u8 *) from->sun_path, fromlen -
136 offsetof(struct sockaddr_un, sun_path));
137 dst->debug_level = atoi(level);
138 return 0;
139 }
140 dst = dst->next;
141 }
142
143 return -1;
144 }
145
146
147 static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
148 const char *txtaddr)
149 {
150 u8 addr[ETH_ALEN];
151 struct sta_info *sta;
152
153 wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr);
154
155 if (hwaddr_aton(txtaddr, addr))
156 return -1;
157
158 sta = ap_get_sta(hapd, addr);
159 if (sta)
160 return 0;
161
162 wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface "
163 "notification", MAC2STR(addr));
164 sta = ap_sta_add(hapd, addr);
165 if (sta == NULL)
166 return -1;
167
168 hostapd_new_assoc_sta(hapd, sta, 0);
169 return 0;
170 }
171
172
173 #ifdef CONFIG_IEEE80211W
174 #ifdef NEED_AP_MLME
175 static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd,
176 const char *txtaddr)
177 {
178 u8 addr[ETH_ALEN];
179 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
180
181 wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr);
182
183 if (hwaddr_aton(txtaddr, addr) ||
184 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0)
185 return -1;
186
187 ieee802_11_send_sa_query_req(hapd, addr, trans_id);
188
189 return 0;
190 }
191 #endif /* NEED_AP_MLME */
192 #endif /* CONFIG_IEEE80211W */
193
194
195 #ifdef CONFIG_WPS
196 static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
197 {
198 char *pin = os_strchr(txt, ' ');
199 char *timeout_txt;
200 int timeout;
201 u8 addr_buf[ETH_ALEN], *addr = NULL;
202 char *pos;
203
204 if (pin == NULL)
205 return -1;
206 *pin++ = '\0';
207
208 timeout_txt = os_strchr(pin, ' ');
209 if (timeout_txt) {
210 *timeout_txt++ = '\0';
211 timeout = atoi(timeout_txt);
212 pos = os_strchr(timeout_txt, ' ');
213 if (pos) {
214 *pos++ = '\0';
215 if (hwaddr_aton(pos, addr_buf) == 0)
216 addr = addr_buf;
217 }
218 } else
219 timeout = 0;
220
221 return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout);
222 }
223
224
225 static int hostapd_ctrl_iface_wps_check_pin(
226 struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen)
227 {
228 char pin[9];
229 size_t len;
230 char *pos;
231 int ret;
232
233 wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN",
234 (u8 *) cmd, os_strlen(cmd));
235 for (pos = cmd, len = 0; *pos != '\0'; pos++) {
236 if (*pos < '0' || *pos > '9')
237 continue;
238 pin[len++] = *pos;
239 if (len == 9) {
240 wpa_printf(MSG_DEBUG, "WPS: Too long PIN");
241 return -1;
242 }
243 }
244 if (len != 4 && len != 8) {
245 wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len);
246 return -1;
247 }
248 pin[len] = '\0';
249
250 if (len == 8) {
251 unsigned int pin_val;
252 pin_val = atoi(pin);
253 if (!wps_pin_valid(pin_val)) {
254 wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
255 ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
256 if (os_snprintf_error(buflen, ret))
257 return -1;
258 return ret;
259 }
260 }
261
262 ret = os_snprintf(buf, buflen, "%s", pin);
263 if (os_snprintf_error(buflen, ret))
264 return -1;
265
266 return ret;
267 }
268
269
270 #ifdef CONFIG_WPS_NFC
271 static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd,
272 char *pos)
273 {
274 size_t len;
275 struct wpabuf *buf;
276 int ret;
277
278 len = os_strlen(pos);
279 if (len & 0x01)
280 return -1;
281 len /= 2;
282
283 buf = wpabuf_alloc(len);
284 if (buf == NULL)
285 return -1;
286 if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) {
287 wpabuf_free(buf);
288 return -1;
289 }
290
291 ret = hostapd_wps_nfc_tag_read(hapd, buf);
292 wpabuf_free(buf);
293
294 return ret;
295 }
296
297
298 static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd,
299 char *cmd, char *reply,
300 size_t max_len)
301 {
302 int ndef;
303 struct wpabuf *buf;
304 int res;
305
306 if (os_strcmp(cmd, "WPS") == 0)
307 ndef = 0;
308 else if (os_strcmp(cmd, "NDEF") == 0)
309 ndef = 1;
310 else
311 return -1;
312
313 buf = hostapd_wps_nfc_config_token(hapd, ndef);
314 if (buf == NULL)
315 return -1;
316
317 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
318 wpabuf_len(buf));
319 reply[res++] = '\n';
320 reply[res] = '\0';
321
322 wpabuf_free(buf);
323
324 return res;
325 }
326
327
328 static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd,
329 char *reply, size_t max_len,
330 int ndef)
331 {
332 struct wpabuf *buf;
333 int res;
334
335 buf = hostapd_wps_nfc_token_gen(hapd, ndef);
336 if (buf == NULL)
337 return -1;
338
339 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
340 wpabuf_len(buf));
341 reply[res++] = '\n';
342 reply[res] = '\0';
343
344 wpabuf_free(buf);
345
346 return res;
347 }
348
349
350 static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd,
351 char *cmd, char *reply,
352 size_t max_len)
353 {
354 if (os_strcmp(cmd, "WPS") == 0)
355 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
356 max_len, 0);
357
358 if (os_strcmp(cmd, "NDEF") == 0)
359 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
360 max_len, 1);
361
362 if (os_strcmp(cmd, "enable") == 0)
363 return hostapd_wps_nfc_token_enable(hapd);
364
365 if (os_strcmp(cmd, "disable") == 0) {
366 hostapd_wps_nfc_token_disable(hapd);
367 return 0;
368 }
369
370 return -1;
371 }
372
373
374 static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
375 char *cmd, char *reply,
376 size_t max_len)
377 {
378 struct wpabuf *buf;
379 int res;
380 char *pos;
381 int ndef;
382
383 pos = os_strchr(cmd, ' ');
384 if (pos == NULL)
385 return -1;
386 *pos++ = '\0';
387
388 if (os_strcmp(cmd, "WPS") == 0)
389 ndef = 0;
390 else if (os_strcmp(cmd, "NDEF") == 0)
391 ndef = 1;
392 else
393 return -1;
394
395 if (os_strcmp(pos, "WPS-CR") == 0)
396 buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
397 else
398 buf = NULL;
399 if (buf == NULL)
400 return -1;
401
402 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
403 wpabuf_len(buf));
404 reply[res++] = '\n';
405 reply[res] = '\0';
406
407 wpabuf_free(buf);
408
409 return res;
410 }
411
412
413 static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
414 char *cmd)
415 {
416 size_t len;
417 struct wpabuf *req, *sel;
418 int ret;
419 char *pos, *role, *type, *pos2;
420
421 role = cmd;
422 pos = os_strchr(role, ' ');
423 if (pos == NULL)
424 return -1;
425 *pos++ = '\0';
426
427 type = pos;
428 pos = os_strchr(type, ' ');
429 if (pos == NULL)
430 return -1;
431 *pos++ = '\0';
432
433 pos2 = os_strchr(pos, ' ');
434 if (pos2 == NULL)
435 return -1;
436 *pos2++ = '\0';
437
438 len = os_strlen(pos);
439 if (len & 0x01)
440 return -1;
441 len /= 2;
442
443 req = wpabuf_alloc(len);
444 if (req == NULL)
445 return -1;
446 if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
447 wpabuf_free(req);
448 return -1;
449 }
450
451 len = os_strlen(pos2);
452 if (len & 0x01) {
453 wpabuf_free(req);
454 return -1;
455 }
456 len /= 2;
457
458 sel = wpabuf_alloc(len);
459 if (sel == NULL) {
460 wpabuf_free(req);
461 return -1;
462 }
463 if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
464 wpabuf_free(req);
465 wpabuf_free(sel);
466 return -1;
467 }
468
469 if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) {
470 ret = hostapd_wps_nfc_report_handover(hapd, req, sel);
471 } else {
472 wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
473 "reported: role=%s type=%s", role, type);
474 ret = -1;
475 }
476 wpabuf_free(req);
477 wpabuf_free(sel);
478
479 return ret;
480 }
481
482 #endif /* CONFIG_WPS_NFC */
483
484
485 static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
486 char *buf, size_t buflen)
487 {
488 int timeout = 300;
489 char *pos;
490 const char *pin_txt;
491
492 pos = os_strchr(txt, ' ');
493 if (pos)
494 *pos++ = '\0';
495
496 if (os_strcmp(txt, "disable") == 0) {
497 hostapd_wps_ap_pin_disable(hapd);
498 return os_snprintf(buf, buflen, "OK\n");
499 }
500
501 if (os_strcmp(txt, "random") == 0) {
502 if (pos)
503 timeout = atoi(pos);
504 pin_txt = hostapd_wps_ap_pin_random(hapd, timeout);
505 if (pin_txt == NULL)
506 return -1;
507 return os_snprintf(buf, buflen, "%s", pin_txt);
508 }
509
510 if (os_strcmp(txt, "get") == 0) {
511 pin_txt = hostapd_wps_ap_pin_get(hapd);
512 if (pin_txt == NULL)
513 return -1;
514 return os_snprintf(buf, buflen, "%s", pin_txt);
515 }
516
517 if (os_strcmp(txt, "set") == 0) {
518 char *pin;
519 if (pos == NULL)
520 return -1;
521 pin = pos;
522 pos = os_strchr(pos, ' ');
523 if (pos) {
524 *pos++ = '\0';
525 timeout = atoi(pos);
526 }
527 if (os_strlen(pin) > buflen)
528 return -1;
529 if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0)
530 return -1;
531 return os_snprintf(buf, buflen, "%s", pin);
532 }
533
534 return -1;
535 }
536
537
538 static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt)
539 {
540 char *pos;
541 char *ssid, *auth, *encr = NULL, *key = NULL;
542
543 ssid = txt;
544 pos = os_strchr(txt, ' ');
545 if (!pos)
546 return -1;
547 *pos++ = '\0';
548
549 auth = pos;
550 pos = os_strchr(pos, ' ');
551 if (pos) {
552 *pos++ = '\0';
553 encr = pos;
554 pos = os_strchr(pos, ' ');
555 if (pos) {
556 *pos++ = '\0';
557 key = pos;
558 }
559 }
560
561 return hostapd_wps_config_ap(hapd, ssid, auth, encr, key);
562 }
563
564
565 static const char * pbc_status_str(enum pbc_status status)
566 {
567 switch (status) {
568 case WPS_PBC_STATUS_DISABLE:
569 return "Disabled";
570 case WPS_PBC_STATUS_ACTIVE:
571 return "Active";
572 case WPS_PBC_STATUS_TIMEOUT:
573 return "Timed-out";
574 case WPS_PBC_STATUS_OVERLAP:
575 return "Overlap";
576 default:
577 return "Unknown";
578 }
579 }
580
581
582 static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
583 char *buf, size_t buflen)
584 {
585 int ret;
586 char *pos, *end;
587
588 pos = buf;
589 end = buf + buflen;
590
591 ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
592 pbc_status_str(hapd->wps_stats.pbc_status));
593
594 if (os_snprintf_error(end - pos, ret))
595 return pos - buf;
596 pos += ret;
597
598 ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n",
599 (hapd->wps_stats.status == WPS_STATUS_SUCCESS ?
600 "Success":
601 (hapd->wps_stats.status == WPS_STATUS_FAILURE ?
602 "Failed" : "None")));
603
604 if (os_snprintf_error(end - pos, ret))
605 return pos - buf;
606 pos += ret;
607
608 /* If status == Failure - Add possible Reasons */
609 if(hapd->wps_stats.status == WPS_STATUS_FAILURE &&
610 hapd->wps_stats.failure_reason > 0) {
611 ret = os_snprintf(pos, end - pos,
612 "Failure Reason: %s\n",
613 wps_ei_str(hapd->wps_stats.failure_reason));
614
615 if (os_snprintf_error(end - pos, ret))
616 return pos - buf;
617 pos += ret;
618 }
619
620 if (hapd->wps_stats.status) {
621 ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
622 MAC2STR(hapd->wps_stats.peer_addr));
623
624 if (os_snprintf_error(end - pos, ret))
625 return pos - buf;
626 pos += ret;
627 }
628
629 return pos - buf;
630 }
631
632 #endif /* CONFIG_WPS */
633
634 #ifdef CONFIG_HS20
635
636 static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd,
637 const char *cmd)
638 {
639 u8 addr[ETH_ALEN];
640 const char *url;
641
642 if (hwaddr_aton(cmd, addr))
643 return -1;
644 url = cmd + 17;
645 if (*url == '\0') {
646 url = NULL;
647 } else {
648 if (*url != ' ')
649 return -1;
650 url++;
651 if (*url == '\0')
652 url = NULL;
653 }
654
655 return hs20_send_wnm_notification(hapd, addr, 1, url);
656 }
657
658
659 static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd,
660 const char *cmd)
661 {
662 u8 addr[ETH_ALEN];
663 int code, reauth_delay, ret;
664 const char *pos;
665 size_t url_len;
666 struct wpabuf *req;
667
668 /* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */
669 if (hwaddr_aton(cmd, addr))
670 return -1;
671
672 pos = os_strchr(cmd, ' ');
673 if (pos == NULL)
674 return -1;
675 pos++;
676 code = atoi(pos);
677
678 pos = os_strchr(pos, ' ');
679 if (pos == NULL)
680 return -1;
681 pos++;
682 reauth_delay = atoi(pos);
683
684 url_len = 0;
685 pos = os_strchr(pos, ' ');
686 if (pos) {
687 pos++;
688 url_len = os_strlen(pos);
689 }
690
691 req = wpabuf_alloc(4 + url_len);
692 if (req == NULL)
693 return -1;
694 wpabuf_put_u8(req, code);
695 wpabuf_put_le16(req, reauth_delay);
696 wpabuf_put_u8(req, url_len);
697 if (pos)
698 wpabuf_put_data(req, pos, url_len);
699
700 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR
701 " to indicate imminent deauthentication (code=%d "
702 "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay);
703 ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req);
704 wpabuf_free(req);
705 return ret;
706 }
707
708 #endif /* CONFIG_HS20 */
709
710
711 #ifdef CONFIG_INTERWORKING
712
713 static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd,
714 const char *cmd)
715 {
716 u8 qos_map_set[16 + 2 * 21], count = 0;
717 const char *pos = cmd;
718 int val, ret;
719
720 for (;;) {
721 if (count == sizeof(qos_map_set)) {
722 wpa_printf(MSG_ERROR, "Too many qos_map_set parameters");
723 return -1;
724 }
725
726 val = atoi(pos);
727 if (val < 0 || val > 255) {
728 wpa_printf(MSG_INFO, "Invalid QoS Map Set");
729 return -1;
730 }
731
732 qos_map_set[count++] = val;
733 pos = os_strchr(pos, ',');
734 if (!pos)
735 break;
736 pos++;
737 }
738
739 if (count < 16 || count & 1) {
740 wpa_printf(MSG_INFO, "Invalid QoS Map Set");
741 return -1;
742 }
743
744 ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count);
745 if (ret) {
746 wpa_printf(MSG_INFO, "Failed to set QoS Map Set");
747 return -1;
748 }
749
750 os_memcpy(hapd->conf->qos_map_set, qos_map_set, count);
751 hapd->conf->qos_map_set_len = count;
752
753 return 0;
754 }
755
756
757 static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd,
758 const char *cmd)
759 {
760 u8 addr[ETH_ALEN];
761 struct sta_info *sta;
762 struct wpabuf *buf;
763 u8 *qos_map_set = hapd->conf->qos_map_set;
764 u8 qos_map_set_len = hapd->conf->qos_map_set_len;
765 int ret;
766
767 if (!qos_map_set_len) {
768 wpa_printf(MSG_INFO, "QoS Map Set is not set");
769 return -1;
770 }
771
772 if (hwaddr_aton(cmd, addr))
773 return -1;
774
775 sta = ap_get_sta(hapd, addr);
776 if (sta == NULL) {
777 wpa_printf(MSG_DEBUG, "Station " MACSTR " not found "
778 "for QoS Map Configuration message",
779 MAC2STR(addr));
780 return -1;
781 }
782
783 if (!sta->qos_map_enabled) {
784 wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate "
785 "support for QoS Map", MAC2STR(addr));
786 return -1;
787 }
788
789 buf = wpabuf_alloc(2 + 2 + qos_map_set_len);
790 if (buf == NULL)
791 return -1;
792
793 wpabuf_put_u8(buf, WLAN_ACTION_QOS);
794 wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG);
795
796 /* QoS Map Set Element */
797 wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET);
798 wpabuf_put_u8(buf, qos_map_set_len);
799 wpabuf_put_data(buf, qos_map_set, qos_map_set_len);
800
801 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
802 wpabuf_head(buf), wpabuf_len(buf));
803 wpabuf_free(buf);
804
805 return ret;
806 }
807
808 #endif /* CONFIG_INTERWORKING */
809
810
811 #ifdef CONFIG_WNM
812
813 static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd,
814 const char *cmd)
815 {
816 u8 addr[ETH_ALEN];
817 int disassoc_timer;
818 struct sta_info *sta;
819
820 if (hwaddr_aton(cmd, addr))
821 return -1;
822 if (cmd[17] != ' ')
823 return -1;
824 disassoc_timer = atoi(cmd + 17);
825
826 sta = ap_get_sta(hapd, addr);
827 if (sta == NULL) {
828 wpa_printf(MSG_DEBUG, "Station " MACSTR
829 " not found for disassociation imminent message",
830 MAC2STR(addr));
831 return -1;
832 }
833
834 return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer);
835 }
836
837
838 static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
839 const char *cmd)
840 {
841 u8 addr[ETH_ALEN];
842 const char *url, *timerstr;
843 int disassoc_timer;
844 struct sta_info *sta;
845
846 if (hwaddr_aton(cmd, addr))
847 return -1;
848
849 sta = ap_get_sta(hapd, addr);
850 if (sta == NULL) {
851 wpa_printf(MSG_DEBUG, "Station " MACSTR
852 " not found for ESS disassociation imminent message",
853 MAC2STR(addr));
854 return -1;
855 }
856
857 timerstr = cmd + 17;
858 if (*timerstr != ' ')
859 return -1;
860 timerstr++;
861 disassoc_timer = atoi(timerstr);
862 if (disassoc_timer < 0 || disassoc_timer > 65535)
863 return -1;
864
865 url = os_strchr(timerstr, ' ');
866 if (url == NULL)
867 return -1;
868 url++;
869
870 return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
871 }
872
873
874 static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
875 const char *cmd)
876 {
877 u8 addr[ETH_ALEN];
878 const char *pos, *end;
879 int disassoc_timer = 0;
880 struct sta_info *sta;
881 u8 req_mode = 0, valid_int = 0x01;
882 u8 bss_term_dur[12];
883 char *url = NULL;
884 int ret;
885 u8 nei_rep[1000];
886 u8 *nei_pos = nei_rep;
887 u8 mbo[10];
888 size_t mbo_len = 0;
889
890 if (hwaddr_aton(cmd, addr)) {
891 wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
892 return -1;
893 }
894
895 sta = ap_get_sta(hapd, addr);
896 if (sta == NULL) {
897 wpa_printf(MSG_DEBUG, "Station " MACSTR
898 " not found for BSS TM Request message",
899 MAC2STR(addr));
900 return -1;
901 }
902
903 pos = os_strstr(cmd, " disassoc_timer=");
904 if (pos) {
905 pos += 16;
906 disassoc_timer = atoi(pos);
907 if (disassoc_timer < 0 || disassoc_timer > 65535) {
908 wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
909 return -1;
910 }
911 }
912
913 pos = os_strstr(cmd, " valid_int=");
914 if (pos) {
915 pos += 11;
916 valid_int = atoi(pos);
917 }
918
919 pos = os_strstr(cmd, " bss_term=");
920 if (pos) {
921 pos += 10;
922 req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
923 /* TODO: TSF configurable/learnable */
924 bss_term_dur[0] = 4; /* Subelement ID */
925 bss_term_dur[1] = 10; /* Length */
926 os_memset(bss_term_dur, 2, 8);
927 end = os_strchr(pos, ',');
928 if (end == NULL) {
929 wpa_printf(MSG_DEBUG, "Invalid bss_term data");
930 return -1;
931 }
932 end++;
933 WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
934 }
935
936
937 /*
938 * BSS Transition Candidate List Entries - Neighbor Report elements
939 * neighbor=<BSSID>,<BSSID Information>,<Operating Class>,
940 * <Channel Number>,<PHY Type>[,<hexdump of Optional Subelements>]
941 */
942 pos = cmd;
943 while (pos) {
944 u8 *nei_start;
945 long int val;
946 char *endptr, *tmp;
947
948 pos = os_strstr(pos, " neighbor=");
949 if (!pos)
950 break;
951 if (nei_pos + 15 > nei_rep + sizeof(nei_rep)) {
952 wpa_printf(MSG_DEBUG,
953 "Not enough room for additional neighbor");
954 return -1;
955 }
956 pos += 10;
957
958 nei_start = nei_pos;
959 *nei_pos++ = WLAN_EID_NEIGHBOR_REPORT;
960 nei_pos++; /* length to be filled in */
961
962 if (hwaddr_aton(pos, nei_pos)) {
963 wpa_printf(MSG_DEBUG, "Invalid BSSID");
964 return -1;
965 }
966 nei_pos += ETH_ALEN;
967 pos += 17;
968 if (*pos != ',') {
969 wpa_printf(MSG_DEBUG, "Missing BSSID Information");
970 return -1;
971 }
972 pos++;
973
974 val = strtol(pos, &endptr, 0);
975 WPA_PUT_LE32(nei_pos, val);
976 nei_pos += 4;
977 if (*endptr != ',') {
978 wpa_printf(MSG_DEBUG, "Missing Operating Class");
979 return -1;
980 }
981 pos = endptr + 1;
982
983 *nei_pos++ = atoi(pos); /* Operating Class */
984 pos = os_strchr(pos, ',');
985 if (pos == NULL) {
986 wpa_printf(MSG_DEBUG, "Missing Channel Number");
987 return -1;
988 }
989 pos++;
990
991 *nei_pos++ = atoi(pos); /* Channel Number */
992 pos = os_strchr(pos, ',');
993 if (pos == NULL) {
994 wpa_printf(MSG_DEBUG, "Missing PHY Type");
995 return -1;
996 }
997 pos++;
998
999 *nei_pos++ = atoi(pos); /* PHY Type */
1000 end = os_strchr(pos, ' ');
1001 tmp = os_strchr(pos, ',');
1002 if (tmp && (!end || tmp < end)) {
1003 /* Optional Subelements (hexdump) */
1004 size_t len;
1005
1006 pos = tmp + 1;
1007 end = os_strchr(pos, ' ');
1008 if (end)
1009 len = end - pos;
1010 else
1011 len = os_strlen(pos);
1012 if (nei_pos + len / 2 > nei_rep + sizeof(nei_rep)) {
1013 wpa_printf(MSG_DEBUG,
1014 "Not enough room for neighbor subelements");
1015 return -1;
1016 }
1017 if (len & 0x01 ||
1018 hexstr2bin(pos, nei_pos, len / 2) < 0) {
1019 wpa_printf(MSG_DEBUG,
1020 "Invalid neighbor subelement info");
1021 return -1;
1022 }
1023 nei_pos += len / 2;
1024 pos = end;
1025 }
1026
1027 nei_start[1] = nei_pos - nei_start - 2;
1028 }
1029
1030 pos = os_strstr(cmd, " url=");
1031 if (pos) {
1032 size_t len;
1033 pos += 5;
1034 end = os_strchr(pos, ' ');
1035 if (end)
1036 len = end - pos;
1037 else
1038 len = os_strlen(pos);
1039 url = os_malloc(len + 1);
1040 if (url == NULL)
1041 return -1;
1042 os_memcpy(url, pos, len);
1043 url[len] = '\0';
1044 req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
1045 }
1046
1047 if (os_strstr(cmd, " pref=1"))
1048 req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
1049 if (os_strstr(cmd, " abridged=1"))
1050 req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
1051 if (os_strstr(cmd, " disassoc_imminent=1"))
1052 req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;
1053
1054 #ifdef CONFIG_MBO
1055 pos = os_strstr(cmd, "mbo=");
1056 if (pos) {
1057 unsigned int mbo_reason, cell_pref, reassoc_delay;
1058 u8 *mbo_pos = mbo;
1059
1060 ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason,
1061 &reassoc_delay, &cell_pref);
1062 if (ret != 3) {
1063 wpa_printf(MSG_DEBUG,
1064 "MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>");
1065 return -1;
1066 }
1067
1068 if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) {
1069 wpa_printf(MSG_DEBUG,
1070 "Invalid MBO transition reason code %u",
1071 mbo_reason);
1072 return -1;
1073 }
1074
1075 /* Valid values for Cellular preference are: 0, 1, 255 */
1076 if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) {
1077 wpa_printf(MSG_DEBUG,
1078 "Invalid MBO cellular capability %u",
1079 cell_pref);
1080 return -1;
1081 }
1082
1083 if (reassoc_delay > 65535 ||
1084 (reassoc_delay &&
1085 !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) {
1086 wpa_printf(MSG_DEBUG,
1087 "MBO: Assoc retry delay is only valid in disassoc imminent mode");
1088 return -1;
1089 }
1090
1091 *mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON;
1092 *mbo_pos++ = 1;
1093 *mbo_pos++ = mbo_reason;
1094 *mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF;
1095 *mbo_pos++ = 1;
1096 *mbo_pos++ = cell_pref;
1097
1098 if (reassoc_delay) {
1099 *mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY;
1100 *mbo_pos++ = 2;
1101 WPA_PUT_LE16(mbo_pos, reassoc_delay);
1102 mbo_pos += 2;
1103 }
1104
1105 mbo_len = mbo_pos - mbo;
1106 }
1107 #endif /* CONFIG_MBO */
1108
1109 ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
1110 valid_int, bss_term_dur, url,
1111 nei_pos > nei_rep ? nei_rep : NULL,
1112 nei_pos - nei_rep, mbo_len ? mbo : NULL,
1113 mbo_len);
1114 os_free(url);
1115 return ret;
1116 }
1117
1118 #endif /* CONFIG_WNM */
1119
1120
1121 static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd,
1122 char *buf, size_t buflen)
1123 {
1124 int ret = 0;
1125 char *pos, *end;
1126
1127 pos = buf;
1128 end = buf + buflen;
1129
1130 WPA_ASSERT(hapd->conf->wpa_key_mgmt);
1131
1132 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
1133 ret = os_snprintf(pos, end - pos, "WPA-PSK ");
1134 if (os_snprintf_error(end - pos, ret))
1135 return pos - buf;
1136 pos += ret;
1137 }
1138 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
1139 ret = os_snprintf(pos, end - pos, "WPA-EAP ");
1140 if (os_snprintf_error(end - pos, ret))
1141 return pos - buf;
1142 pos += ret;
1143 }
1144 #ifdef CONFIG_IEEE80211R
1145 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
1146 ret = os_snprintf(pos, end - pos, "FT-PSK ");
1147 if (os_snprintf_error(end - pos, ret))
1148 return pos - buf;
1149 pos += ret;
1150 }
1151 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
1152 ret = os_snprintf(pos, end - pos, "FT-EAP ");
1153 if (os_snprintf_error(end - pos, ret))
1154 return pos - buf;
1155 pos += ret;
1156 }
1157 #ifdef CONFIG_SAE
1158 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
1159 ret = os_snprintf(pos, end - pos, "FT-SAE ");
1160 if (os_snprintf_error(end - pos, ret))
1161 return pos - buf;
1162 pos += ret;
1163 }
1164 #endif /* CONFIG_SAE */
1165 #endif /* CONFIG_IEEE80211R */
1166 #ifdef CONFIG_IEEE80211W
1167 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
1168 ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
1169 if (os_snprintf_error(end - pos, ret))
1170 return pos - buf;
1171 pos += ret;
1172 }
1173 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1174 ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
1175 if (os_snprintf_error(end - pos, ret))
1176 return pos - buf;
1177 pos += ret;
1178 }
1179 #endif /* CONFIG_IEEE80211W */
1180 #ifdef CONFIG_SAE
1181 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
1182 ret = os_snprintf(pos, end - pos, "SAE ");
1183 if (os_snprintf_error(end - pos, ret))
1184 return pos - buf;
1185 pos += ret;
1186 }
1187 #endif /* CONFIG_SAE */
1188 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1189 ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
1190 if (os_snprintf_error(end - pos, ret))
1191 return pos - buf;
1192 pos += ret;
1193 }
1194 if (hapd->conf->wpa_key_mgmt &
1195 WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
1196 ret = os_snprintf(pos, end - pos,
1197 "WPA-EAP-SUITE-B-192 ");
1198 if (os_snprintf_error(end - pos, ret))
1199 return pos - buf;
1200 pos += ret;
1201 }
1202
1203 if (pos > buf && *(pos - 1) == ' ') {
1204 *(pos - 1) = '\0';
1205 pos--;
1206 }
1207
1208 return pos - buf;
1209 }
1210
1211
1212 static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
1213 char *buf, size_t buflen)
1214 {
1215 int ret;
1216 char *pos, *end;
1217
1218 pos = buf;
1219 end = buf + buflen;
1220
1221 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n"
1222 "ssid=%s\n",
1223 MAC2STR(hapd->own_addr),
1224 wpa_ssid_txt(hapd->conf->ssid.ssid,
1225 hapd->conf->ssid.ssid_len));
1226 if (os_snprintf_error(end - pos, ret))
1227 return pos - buf;
1228 pos += ret;
1229
1230 #ifdef CONFIG_WPS
1231 ret = os_snprintf(pos, end - pos, "wps_state=%s\n",
1232 hapd->conf->wps_state == 0 ? "disabled" :
1233 (hapd->conf->wps_state == 1 ? "not configured" :
1234 "configured"));
1235 if (os_snprintf_error(end - pos, ret))
1236 return pos - buf;
1237 pos += ret;
1238
1239 if (hapd->conf->wps_state && hapd->conf->wpa &&
1240 hapd->conf->ssid.wpa_passphrase) {
1241 ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
1242 hapd->conf->ssid.wpa_passphrase);
1243 if (os_snprintf_error(end - pos, ret))
1244 return pos - buf;
1245 pos += ret;
1246 }
1247
1248 if (hapd->conf->wps_state && hapd->conf->wpa &&
1249 hapd->conf->ssid.wpa_psk &&
1250 hapd->conf->ssid.wpa_psk->group) {
1251 char hex[PMK_LEN * 2 + 1];
1252 wpa_snprintf_hex(hex, sizeof(hex),
1253 hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
1254 ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
1255 if (os_snprintf_error(end - pos, ret))
1256 return pos - buf;
1257 pos += ret;
1258 }
1259 #endif /* CONFIG_WPS */
1260
1261 if (hapd->conf->wpa) {
1262 ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa);
1263 if (os_snprintf_error(end - pos, ret))
1264 return pos - buf;
1265 pos += ret;
1266 }
1267
1268 if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
1269 ret = os_snprintf(pos, end - pos, "key_mgmt=");
1270 if (os_snprintf_error(end - pos, ret))
1271 return pos - buf;
1272 pos += ret;
1273
1274 pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos);
1275
1276 ret = os_snprintf(pos, end - pos, "\n");
1277 if (os_snprintf_error(end - pos, ret))
1278 return pos - buf;
1279 pos += ret;
1280 }
1281
1282 if (hapd->conf->wpa) {
1283 ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
1284 wpa_cipher_txt(hapd->conf->wpa_group));
1285 if (os_snprintf_error(end - pos, ret))
1286 return pos - buf;
1287 pos += ret;
1288 }
1289
1290 if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
1291 ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
1292 if (os_snprintf_error(end - pos, ret))
1293 return pos - buf;
1294 pos += ret;
1295
1296 ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise,
1297 " ");
1298 if (ret < 0)
1299 return pos - buf;
1300 pos += ret;
1301
1302 ret = os_snprintf(pos, end - pos, "\n");
1303 if (os_snprintf_error(end - pos, ret))
1304 return pos - buf;
1305 pos += ret;
1306 }
1307
1308 if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
1309 ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
1310 if (os_snprintf_error(end - pos, ret))
1311 return pos - buf;
1312 pos += ret;
1313
1314 ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise,
1315 " ");
1316 if (ret < 0)
1317 return pos - buf;
1318 pos += ret;
1319
1320 ret = os_snprintf(pos, end - pos, "\n");
1321 if (os_snprintf_error(end - pos, ret))
1322 return pos - buf;
1323 pos += ret;
1324 }
1325
1326 return pos - buf;
1327 }
1328
1329
1330 static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
1331 {
1332 char *value;
1333 int ret = 0;
1334
1335 value = os_strchr(cmd, ' ');
1336 if (value == NULL)
1337 return -1;
1338 *value++ = '\0';
1339
1340 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
1341 if (0) {
1342 #ifdef CONFIG_WPS_TESTING
1343 } else if (os_strcasecmp(cmd, "wps_version_number") == 0) {
1344 long int val;
1345 val = strtol(value, NULL, 0);
1346 if (val < 0 || val > 0xff) {
1347 ret = -1;
1348 wpa_printf(MSG_DEBUG, "WPS: Invalid "
1349 "wps_version_number %ld", val);
1350 } else {
1351 wps_version_number = val;
1352 wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS "
1353 "version %u.%u",
1354 (wps_version_number & 0xf0) >> 4,
1355 wps_version_number & 0x0f);
1356 hostapd_wps_update_ie(hapd);
1357 }
1358 } else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) {
1359 wps_testing_dummy_cred = atoi(value);
1360 wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d",
1361 wps_testing_dummy_cred);
1362 } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) {
1363 wps_corrupt_pkhash = atoi(value);
1364 wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d",
1365 wps_corrupt_pkhash);
1366 #endif /* CONFIG_WPS_TESTING */
1367 #ifdef CONFIG_INTERWORKING
1368 } else if (os_strcasecmp(cmd, "gas_frag_limit") == 0) {
1369 int val = atoi(value);
1370 if (val <= 0)
1371 ret = -1;
1372 else
1373 hapd->gas_frag_limit = val;
1374 #endif /* CONFIG_INTERWORKING */
1375 #ifdef CONFIG_TESTING_OPTIONS
1376 } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
1377 hapd->ext_mgmt_frame_handling = atoi(value);
1378 } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
1379 hapd->ext_eapol_frame_io = atoi(value);
1380 #endif /* CONFIG_TESTING_OPTIONS */
1381 #ifdef CONFIG_MBO
1382 } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) {
1383 int val;
1384
1385 if (!hapd->conf->mbo_enabled)
1386 return -1;
1387
1388 val = atoi(value);
1389 if (val < 0 || val > 1)
1390 return -1;
1391
1392 hapd->mbo_assoc_disallow = val;
1393 ieee802_11_update_beacons(hapd->iface);
1394
1395 /*
1396 * TODO: Need to configure drivers that do AP MLME offload with
1397 * disallowing station logic.
1398 */
1399 #endif /* CONFIG_MBO */
1400 } else {
1401 struct sta_info *sta;
1402 struct vlan_description vlan_id;
1403
1404 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
1405 if (ret)
1406 return ret;
1407
1408 if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
1409 for (sta = hapd->sta_list; sta; sta = sta->next) {
1410 if (hostapd_maclist_found(
1411 hapd->conf->deny_mac,
1412 hapd->conf->num_deny_mac, sta->addr,
1413 &vlan_id) &&
1414 (!vlan_id.notempty ||
1415 !vlan_compare(&vlan_id, sta->vlan_desc)))
1416 ap_sta_disconnect(
1417 hapd, sta, sta->addr,
1418 WLAN_REASON_UNSPECIFIED);
1419 }
1420 } else if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED &&
1421 os_strcasecmp(cmd, "accept_mac_file") == 0) {
1422 for (sta = hapd->sta_list; sta; sta = sta->next) {
1423 if (!hostapd_maclist_found(
1424 hapd->conf->accept_mac,
1425 hapd->conf->num_accept_mac,
1426 sta->addr, &vlan_id) ||
1427 (vlan_id.notempty &&
1428 vlan_compare(&vlan_id, sta->vlan_desc)))
1429 ap_sta_disconnect(
1430 hapd, sta, sta->addr,
1431 WLAN_REASON_UNSPECIFIED);
1432 }
1433 }
1434 }
1435
1436 return ret;
1437 }
1438
1439
1440 static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
1441 char *buf, size_t buflen)
1442 {
1443 int res;
1444
1445 wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);
1446
1447 if (os_strcmp(cmd, "version") == 0) {
1448 res = os_snprintf(buf, buflen, "%s", VERSION_STR);
1449 if (os_snprintf_error(buflen, res))
1450 return -1;
1451 return res;
1452 } else if (os_strcmp(cmd, "tls_library") == 0) {
1453 res = tls_get_library_version(buf, buflen);
1454 if (os_snprintf_error(buflen, res))
1455 return -1;
1456 return res;
1457 }
1458
1459 return -1;
1460 }
1461
1462
1463 static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
1464 {
1465 if (hostapd_enable_iface(iface) < 0) {
1466 wpa_printf(MSG_ERROR, "Enabling of interface failed");
1467 return -1;
1468 }
1469 return 0;
1470 }
1471
1472
1473 static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
1474 {
1475 if (hostapd_reload_iface(iface) < 0) {
1476 wpa_printf(MSG_ERROR, "Reloading of interface failed");
1477 return -1;
1478 }
1479 return 0;
1480 }
1481
1482
1483 static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
1484 {
1485 if (hostapd_disable_iface(iface) < 0) {
1486 wpa_printf(MSG_ERROR, "Disabling of interface failed");
1487 return -1;
1488 }
1489 return 0;
1490 }
1491
1492
1493 #ifdef CONFIG_TESTING_OPTIONS
1494
1495 static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
1496 {
1497 union wpa_event_data data;
1498 char *pos, *param;
1499 enum wpa_event_type event;
1500
1501 wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);
1502
1503 os_memset(&data, 0, sizeof(data));
1504
1505 param = os_strchr(cmd, ' ');
1506 if (param == NULL)
1507 return -1;
1508 *param++ = '\0';
1509
1510 if (os_strcmp(cmd, "DETECTED") == 0)
1511 event = EVENT_DFS_RADAR_DETECTED;
1512 else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
1513 event = EVENT_DFS_CAC_FINISHED;
1514 else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
1515 event = EVENT_DFS_CAC_ABORTED;
1516 else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
1517 event = EVENT_DFS_NOP_FINISHED;
1518 else {
1519 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
1520 cmd);
1521 return -1;
1522 }
1523
1524 pos = os_strstr(param, "freq=");
1525 if (pos)
1526 data.dfs_event.freq = atoi(pos + 5);
1527
1528 pos = os_strstr(param, "ht_enabled=1");
1529 if (pos)
1530 data.dfs_event.ht_enabled = 1;
1531
1532 pos = os_strstr(param, "chan_offset=");
1533 if (pos)
1534 data.dfs_event.chan_offset = atoi(pos + 12);
1535
1536 pos = os_strstr(param, "chan_width=");
1537 if (pos)
1538 data.dfs_event.chan_width = atoi(pos + 11);
1539
1540 pos = os_strstr(param, "cf1=");
1541 if (pos)
1542 data.dfs_event.cf1 = atoi(pos + 4);
1543
1544 pos = os_strstr(param, "cf2=");
1545 if (pos)
1546 data.dfs_event.cf2 = atoi(pos + 4);
1547
1548 wpa_supplicant_event(hapd, event, &data);
1549
1550 return 0;
1551 }
1552
1553
1554 static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
1555 {
1556 size_t len;
1557 u8 *buf;
1558 int res;
1559
1560 wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);
1561
1562 len = os_strlen(cmd);
1563 if (len & 1)
1564 return -1;
1565 len /= 2;
1566
1567 buf = os_malloc(len);
1568 if (buf == NULL)
1569 return -1;
1570
1571 if (hexstr2bin(cmd, buf, len) < 0) {
1572 os_free(buf);
1573 return -1;
1574 }
1575
1576 res = hostapd_drv_send_mlme(hapd, buf, len, 0);
1577 os_free(buf);
1578 return res;
1579 }
1580
1581
1582 static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
1583 {
1584 char *pos;
1585 u8 src[ETH_ALEN], *buf;
1586 int used;
1587 size_t len;
1588
1589 wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
1590
1591 pos = cmd;
1592 used = hwaddr_aton2(pos, src);
1593 if (used < 0)
1594 return -1;
1595 pos += used;
1596 while (*pos == ' ')
1597 pos++;
1598
1599 len = os_strlen(pos);
1600 if (len & 1)
1601 return -1;
1602 len /= 2;
1603
1604 buf = os_malloc(len);
1605 if (buf == NULL)
1606 return -1;
1607
1608 if (hexstr2bin(pos, buf, len) < 0) {
1609 os_free(buf);
1610 return -1;
1611 }
1612
1613 ieee802_1x_receive(hapd, src, buf, len);
1614 os_free(buf);
1615
1616 return 0;
1617 }
1618
1619
1620 static u16 ipv4_hdr_checksum(const void *buf, size_t len)
1621 {
1622 size_t i;
1623 u32 sum = 0;
1624 const u16 *pos = buf;
1625
1626 for (i = 0; i < len / 2; i++)
1627 sum += *pos++;
1628
1629 while (sum >> 16)
1630 sum = (sum & 0xffff) + (sum >> 16);
1631
1632 return sum ^ 0xffff;
1633 }
1634
1635
1636 #define HWSIM_PACKETLEN 1500
1637 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
1638
1639 void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
1640 size_t len)
1641 {
1642 struct hostapd_data *hapd = ctx;
1643 const struct ether_header *eth;
1644 struct iphdr ip;
1645 const u8 *pos;
1646 unsigned int i;
1647
1648 if (len != HWSIM_PACKETLEN)
1649 return;
1650
1651 eth = (const struct ether_header *) buf;
1652 os_memcpy(&ip, eth + 1, sizeof(ip));
1653 pos = &buf[sizeof(*eth) + sizeof(ip)];
1654
1655 if (ip.ihl != 5 || ip.version != 4 ||
1656 ntohs(ip.tot_len) != HWSIM_IP_LEN)
1657 return;
1658
1659 for (i = 0; i < HWSIM_IP_LEN - sizeof(ip); i++) {
1660 if (*pos != (u8) i)
1661 return;
1662 pos++;
1663 }
1664
1665 wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR,
1666 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost));
1667 }
1668
1669
1670 static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
1671 char *cmd)
1672 {
1673 int enabled = atoi(cmd);
1674 char *pos;
1675 const char *ifname;
1676
1677 if (!enabled) {
1678 if (hapd->l2_test) {
1679 l2_packet_deinit(hapd->l2_test);
1680 hapd->l2_test = NULL;
1681 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1682 "test data: Disabled");
1683 }
1684 return 0;
1685 }
1686
1687 if (hapd->l2_test)
1688 return 0;
1689
1690 pos = os_strstr(cmd, " ifname=");
1691 if (pos)
1692 ifname = pos + 8;
1693 else
1694 ifname = hapd->conf->iface;
1695
1696 hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
1697 ETHERTYPE_IP, hostapd_data_test_rx,
1698 hapd, 1);
1699 if (hapd->l2_test == NULL)
1700 return -1;
1701
1702 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
1703
1704 return 0;
1705 }
1706
1707
1708 static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
1709 {
1710 u8 dst[ETH_ALEN], src[ETH_ALEN];
1711 char *pos;
1712 int used;
1713 long int val;
1714 u8 tos;
1715 u8 buf[2 + HWSIM_PACKETLEN];
1716 struct ether_header *eth;
1717 struct iphdr *ip;
1718 u8 *dpos;
1719 unsigned int i;
1720
1721 if (hapd->l2_test == NULL)
1722 return -1;
1723
1724 /* format: <dst> <src> <tos> */
1725
1726 pos = cmd;
1727 used = hwaddr_aton2(pos, dst);
1728 if (used < 0)
1729 return -1;
1730 pos += used;
1731 while (*pos == ' ')
1732 pos++;
1733 used = hwaddr_aton2(pos, src);
1734 if (used < 0)
1735 return -1;
1736 pos += used;
1737
1738 val = strtol(pos, NULL, 0);
1739 if (val < 0 || val > 0xff)
1740 return -1;
1741 tos = val;
1742
1743 eth = (struct ether_header *) &buf[2];
1744 os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
1745 os_memcpy(eth->ether_shost, src, ETH_ALEN);
1746 eth->ether_type = htons(ETHERTYPE_IP);
1747 ip = (struct iphdr *) (eth + 1);
1748 os_memset(ip, 0, sizeof(*ip));
1749 ip->ihl = 5;
1750 ip->version = 4;
1751 ip->ttl = 64;
1752 ip->tos = tos;
1753 ip->tot_len = htons(HWSIM_IP_LEN);
1754 ip->protocol = 1;
1755 ip->saddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1);
1756 ip->daddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2);
1757 ip->check = ipv4_hdr_checksum(ip, sizeof(*ip));
1758 dpos = (u8 *) (ip + 1);
1759 for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++)
1760 *dpos++ = i;
1761
1762 if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2],
1763 HWSIM_PACKETLEN) < 0)
1764 return -1;
1765
1766 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
1767 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
1768
1769 return 0;
1770 }
1771
1772
1773 static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
1774 char *cmd)
1775 {
1776 u8 *buf;
1777 struct ether_header *eth;
1778 struct l2_packet_data *l2 = NULL;
1779 size_t len;
1780 u16 ethertype;
1781 int res = -1;
1782 const char *ifname = hapd->conf->iface;
1783
1784 if (os_strncmp(cmd, "ifname=", 7) == 0) {
1785 cmd += 7;
1786 ifname = cmd;
1787 cmd = os_strchr(cmd, ' ');
1788 if (cmd == NULL)
1789 return -1;
1790 *cmd++ = '\0';
1791 }
1792
1793 len = os_strlen(cmd);
1794 if (len & 1 || len < ETH_HLEN * 2)
1795 return -1;
1796 len /= 2;
1797
1798 buf = os_malloc(len);
1799 if (buf == NULL)
1800 return -1;
1801
1802 if (hexstr2bin(cmd, buf, len) < 0)
1803 goto done;
1804
1805 eth = (struct ether_header *) buf;
1806 ethertype = ntohs(eth->ether_type);
1807
1808 l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
1809 hostapd_data_test_rx, hapd, 1);
1810 if (l2 == NULL)
1811 goto done;
1812
1813 res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
1814 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
1815 done:
1816 if (l2)
1817 l2_packet_deinit(l2);
1818 os_free(buf);
1819
1820 return res < 0 ? -1 : 0;
1821 }
1822
1823
1824 static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd)
1825 {
1826 #ifdef WPA_TRACE_BFD
1827 extern char wpa_trace_fail_func[256];
1828 extern unsigned int wpa_trace_fail_after;
1829 char *pos;
1830
1831 wpa_trace_fail_after = atoi(cmd);
1832 pos = os_strchr(cmd, ':');
1833 if (pos) {
1834 pos++;
1835 os_strlcpy(wpa_trace_fail_func, pos,
1836 sizeof(wpa_trace_fail_func));
1837 } else {
1838 wpa_trace_fail_after = 0;
1839 }
1840
1841 return 0;
1842 #else /* WPA_TRACE_BFD */
1843 return -1;
1844 #endif /* WPA_TRACE_BFD */
1845 }
1846
1847
1848 static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd,
1849 char *buf, size_t buflen)
1850 {
1851 #ifdef WPA_TRACE_BFD
1852 extern char wpa_trace_fail_func[256];
1853 extern unsigned int wpa_trace_fail_after;
1854
1855 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after,
1856 wpa_trace_fail_func);
1857 #else /* WPA_TRACE_BFD */
1858 return -1;
1859 #endif /* WPA_TRACE_BFD */
1860 }
1861
1862
1863 static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd)
1864 {
1865 #ifdef WPA_TRACE_BFD
1866 extern char wpa_trace_test_fail_func[256];
1867 extern unsigned int wpa_trace_test_fail_after;
1868 char *pos;
1869
1870 wpa_trace_test_fail_after = atoi(cmd);
1871 pos = os_strchr(cmd, ':');
1872 if (pos) {
1873 pos++;
1874 os_strlcpy(wpa_trace_test_fail_func, pos,
1875 sizeof(wpa_trace_test_fail_func));
1876 } else {
1877 wpa_trace_test_fail_after = 0;
1878 }
1879
1880 return 0;
1881 #else /* WPA_TRACE_BFD */
1882 return -1;
1883 #endif /* WPA_TRACE_BFD */
1884 }
1885
1886
1887 static int hostapd_ctrl_get_fail(struct hostapd_data *hapd,
1888 char *buf, size_t buflen)
1889 {
1890 #ifdef WPA_TRACE_BFD
1891 extern char wpa_trace_test_fail_func[256];
1892 extern unsigned int wpa_trace_test_fail_after;
1893
1894 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
1895 wpa_trace_test_fail_func);
1896 #else /* WPA_TRACE_BFD */
1897 return -1;
1898 #endif /* WPA_TRACE_BFD */
1899 }
1900
1901 #endif /* CONFIG_TESTING_OPTIONS */
1902
1903
1904 static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
1905 char *pos)
1906 {
1907 #ifdef NEED_AP_MLME
1908 struct csa_settings settings;
1909 int ret;
1910 unsigned int i;
1911
1912 ret = hostapd_parse_csa_settings(pos, &settings);
1913 if (ret)
1914 return ret;
1915
1916 for (i = 0; i < iface->num_bss; i++) {
1917 ret = hostapd_switch_channel(iface->bss[i], &settings);
1918 if (ret) {
1919 /* FIX: What do we do if CSA fails in the middle of
1920 * submitting multi-BSS CSA requests? */
1921 return ret;
1922 }
1923 }
1924
1925 return 0;
1926 #else /* NEED_AP_MLME */
1927 return -1;
1928 #endif /* NEED_AP_MLME */
1929 }
1930
1931
1932 static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
1933 int reply_size, const char *param)
1934 {
1935 #ifdef RADIUS_SERVER
1936 if (os_strcmp(param, "radius_server") == 0) {
1937 return radius_server_get_mib(hapd->radius_srv, reply,
1938 reply_size);
1939 }
1940 #endif /* RADIUS_SERVER */
1941 return -1;
1942 }
1943
1944
1945 static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
1946 char *buf, size_t buflen)
1947 {
1948 int ret;
1949 char *pos;
1950 u8 *data = NULL;
1951 unsigned int vendor_id, subcmd;
1952 struct wpabuf *reply;
1953 size_t data_len = 0;
1954
1955 /* cmd: <vendor id> <subcommand id> [<hex formatted data>] */
1956 vendor_id = strtoul(cmd, &pos, 16);
1957 if (!isblank((unsigned char) *pos))
1958 return -EINVAL;
1959
1960 subcmd = strtoul(pos, &pos, 10);
1961
1962 if (*pos != '\0') {
1963 if (!isblank((unsigned char) *pos++))
1964 return -EINVAL;
1965 data_len = os_strlen(pos);
1966 }
1967
1968 if (data_len) {
1969 data_len /= 2;
1970 data = os_malloc(data_len);
1971 if (!data)
1972 return -ENOBUFS;
1973
1974 if (hexstr2bin(pos, data, data_len)) {
1975 wpa_printf(MSG_DEBUG,
1976 "Vendor command: wrong parameter format");
1977 os_free(data);
1978 return -EINVAL;
1979 }
1980 }
1981
1982 reply = wpabuf_alloc((buflen - 1) / 2);
1983 if (!reply) {
1984 os_free(data);
1985 return -ENOBUFS;
1986 }
1987
1988 ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
1989 reply);
1990
1991 if (ret == 0)
1992 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
1993 wpabuf_len(reply));
1994
1995 wpabuf_free(reply);
1996 os_free(data);
1997
1998 return ret;
1999 }
2000
2001
2002 static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd,
2003 const char *cmd)
2004 {
2005 u8 addr[ETH_ALEN];
2006 struct sta_info *sta;
2007
2008 if (hwaddr_aton(cmd, addr))
2009 return -1;
2010
2011 sta = ap_get_sta(hapd, addr);
2012 if (!sta || !sta->eapol_sm)
2013 return -1;
2014
2015 eapol_auth_reauthenticate(sta->eapol_sm);
2016 return 0;
2017 }
2018
2019
2020 static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd)
2021 {
2022 u8 addr[ETH_ALEN];
2023 struct sta_info *sta;
2024 char *pos = cmd, *param;
2025
2026 if (hwaddr_aton(pos, addr) || pos[17] != ' ')
2027 return -1;
2028 pos += 18;
2029 param = pos;
2030 pos = os_strchr(pos, ' ');
2031 if (!pos)
2032 return -1;
2033 *pos++ = '\0';
2034
2035 sta = ap_get_sta(hapd, addr);
2036 if (!sta || !sta->eapol_sm)
2037 return -1;
2038
2039 return eapol_auth_set_conf(sta->eapol_sm, param, pos);
2040 }
2041
2042
2043 static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd,
2044 char *buf, size_t buflen)
2045 {
2046 char *pos, *end, *stamp;
2047 int ret;
2048
2049 /* cmd: "LOG_LEVEL [<level>]" */
2050 if (*cmd == '\0') {
2051 pos = buf;
2052 end = buf + buflen;
2053 ret = os_snprintf(pos, end - pos, "Current level: %s\n"
2054 "Timestamp: %d\n",
2055 debug_level_str(wpa_debug_level),
2056 wpa_debug_timestamp);
2057 if (os_snprintf_error(end - pos, ret))
2058 ret = 0;
2059
2060 return ret;
2061 }
2062
2063 while (*cmd == ' ')
2064 cmd++;
2065
2066 stamp = os_strchr(cmd, ' ');
2067 if (stamp) {
2068 *stamp++ = '\0';
2069 while (*stamp == ' ') {
2070 stamp++;
2071 }
2072 }
2073
2074 if (os_strlen(cmd)) {
2075 int level = str_to_debug_level(cmd);
2076 if (level < 0)
2077 return -1;
2078 wpa_debug_level = level;
2079 }
2080
2081 if (stamp && os_strlen(stamp))
2082 wpa_debug_timestamp = atoi(stamp);
2083
2084 os_memcpy(buf, "OK\n", 3);
2085 return 3;
2086 }
2087
2088
2089 #ifdef NEED_AP_MLME
2090 static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd,
2091 char *buf, size_t buflen)
2092 {
2093 struct hostapd_iface *iface = hapd->iface;
2094 char *pos, *end;
2095 struct hostapd_sta_info *info;
2096 struct os_reltime now;
2097
2098 sta_track_expire(iface, 0);
2099
2100 pos = buf;
2101 end = buf + buflen;
2102
2103 os_get_reltime(&now);
2104 dl_list_for_each_reverse(info, &iface->sta_seen,
2105 struct hostapd_sta_info, list) {
2106 struct os_reltime age;
2107 int ret;
2108
2109 os_reltime_sub(&now, &info->last_seen, &age);
2110 ret = os_snprintf(pos, end - pos, MACSTR " %u\n",
2111 MAC2STR(info->addr), (unsigned int) age.sec);
2112 if (os_snprintf_error(end - pos, ret))
2113 break;
2114 pos += ret;
2115 }
2116
2117 return pos - buf;
2118 }
2119 #endif /* NEED_AP_MLME */
2120
2121
2122 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
2123 char *buf, char *reply,
2124 int reply_size,
2125 struct sockaddr_un *from,
2126 socklen_t fromlen)
2127 {
2128 int reply_len, res;
2129
2130 os_memcpy(reply, "OK\n", 3);
2131 reply_len = 3;
2132
2133 if (os_strcmp(buf, "PING") == 0) {
2134 os_memcpy(reply, "PONG\n", 5);
2135 reply_len = 5;
2136 } else if (os_strncmp(buf, "RELOG", 5) == 0) {
2137 if (wpa_debug_reopen_file() < 0)
2138 reply_len = -1;
2139 } else if (os_strcmp(buf, "STATUS") == 0) {
2140 reply_len = hostapd_ctrl_iface_status(hapd, reply,
2141 reply_size);
2142 } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) {
2143 reply_len = hostapd_drv_status(hapd, reply, reply_size);
2144 } else if (os_strcmp(buf, "MIB") == 0) {
2145 reply_len = ieee802_11_get_mib(hapd, reply, reply_size);
2146 if (reply_len >= 0) {
2147 res = wpa_get_mib(hapd->wpa_auth, reply + reply_len,
2148 reply_size - reply_len);
2149 if (res < 0)
2150 reply_len = -1;
2151 else
2152 reply_len += res;
2153 }
2154 if (reply_len >= 0) {
2155 res = ieee802_1x_get_mib(hapd, reply + reply_len,
2156 reply_size - reply_len);
2157 if (res < 0)
2158 reply_len = -1;
2159 else
2160 reply_len += res;
2161 }
2162 #ifndef CONFIG_NO_RADIUS
2163 if (reply_len >= 0) {
2164 res = radius_client_get_mib(hapd->radius,
2165 reply + reply_len,
2166 reply_size - reply_len);
2167 if (res < 0)
2168 reply_len = -1;
2169 else
2170 reply_len += res;
2171 }
2172 #endif /* CONFIG_NO_RADIUS */
2173 } else if (os_strncmp(buf, "MIB ", 4) == 0) {
2174 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size,
2175 buf + 4);
2176 } else if (os_strcmp(buf, "STA-FIRST") == 0) {
2177 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
2178 reply_size);
2179 } else if (os_strncmp(buf, "STA ", 4) == 0) {
2180 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply,
2181 reply_size);
2182 } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
2183 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply,
2184 reply_size);
2185 } else if (os_strcmp(buf, "ATTACH") == 0) {
2186 if (hostapd_ctrl_iface_attach(hapd, from, fromlen))
2187 reply_len = -1;
2188 } else if (os_strcmp(buf, "DETACH") == 0) {
2189 if (hostapd_ctrl_iface_detach(hapd, from, fromlen))
2190 reply_len = -1;
2191 } else if (os_strncmp(buf, "LEVEL ", 6) == 0) {
2192 if (hostapd_ctrl_iface_level(hapd, from, fromlen,
2193 buf + 6))
2194 reply_len = -1;
2195 } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) {
2196 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8))
2197 reply_len = -1;
2198 } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) {
2199 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15))
2200 reply_len = -1;
2201 } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) {
2202 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13))
2203 reply_len = -1;
2204 } else if (os_strcmp(buf, "STOP_AP") == 0) {
2205 if (hostapd_ctrl_iface_stop_ap(hapd))
2206 reply_len = -1;
2207 #ifdef CONFIG_IEEE80211W
2208 #ifdef NEED_AP_MLME
2209 } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) {
2210 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9))
2211 reply_len = -1;
2212 #endif /* NEED_AP_MLME */
2213 #endif /* CONFIG_IEEE80211W */
2214 #ifdef CONFIG_WPS
2215 } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
2216 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8))
2217 reply_len = -1;
2218 } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) {
2219 reply_len = hostapd_ctrl_iface_wps_check_pin(
2220 hapd, buf + 14, reply, reply_size);
2221 } else if (os_strcmp(buf, "WPS_PBC") == 0) {
2222 if (hostapd_wps_button_pushed(hapd, NULL))
2223 reply_len = -1;
2224 } else if (os_strcmp(buf, "WPS_CANCEL") == 0) {
2225 if (hostapd_wps_cancel(hapd))
2226 reply_len = -1;
2227 } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) {
2228 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
2229 reply, reply_size);
2230 } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) {
2231 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0)
2232 reply_len = -1;
2233 } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) {
2234 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply,
2235 reply_size);
2236 #ifdef CONFIG_WPS_NFC
2237 } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) {
2238 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17))
2239 reply_len = -1;
2240 } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) {
2241 reply_len = hostapd_ctrl_iface_wps_nfc_config_token(
2242 hapd, buf + 21, reply, reply_size);
2243 } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
2244 reply_len = hostapd_ctrl_iface_wps_nfc_token(
2245 hapd, buf + 14, reply, reply_size);
2246 } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
2247 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
2248 hapd, buf + 21, reply, reply_size);
2249 } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
2250 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
2251 reply_len = -1;
2252 #endif /* CONFIG_WPS_NFC */
2253 #endif /* CONFIG_WPS */
2254 #ifdef CONFIG_INTERWORKING
2255 } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) {
2256 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16))
2257 reply_len = -1;
2258 } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) {
2259 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18))
2260 reply_len = -1;
2261 #endif /* CONFIG_INTERWORKING */
2262 #ifdef CONFIG_HS20
2263 } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) {
2264 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15))
2265 reply_len = -1;
2266 } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) {
2267 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16))
2268 reply_len = -1;
2269 #endif /* CONFIG_HS20 */
2270 #ifdef CONFIG_WNM
2271 } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) {
2272 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18))
2273 reply_len = -1;
2274 } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
2275 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
2276 reply_len = -1;
2277 } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
2278 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
2279 reply_len = -1;
2280 #endif /* CONFIG_WNM */
2281 } else if (os_strcmp(buf, "GET_CONFIG") == 0) {
2282 reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
2283 reply_size);
2284 } else if (os_strncmp(buf, "SET ", 4) == 0) {
2285 if (hostapd_ctrl_iface_set(hapd, buf + 4))
2286 reply_len = -1;
2287 } else if (os_strncmp(buf, "GET ", 4) == 0) {
2288 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply,
2289 reply_size);
2290 } else if (os_strncmp(buf, "ENABLE", 6) == 0) {
2291 if (hostapd_ctrl_iface_enable(hapd->iface))
2292 reply_len = -1;
2293 } else if (os_strncmp(buf, "RELOAD", 6) == 0) {
2294 if (hostapd_ctrl_iface_reload(hapd->iface))
2295 reply_len = -1;
2296 } else if (os_strncmp(buf, "DISABLE", 7) == 0) {
2297 if (hostapd_ctrl_iface_disable(hapd->iface))
2298 reply_len = -1;
2299 } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) {
2300 if (ieee802_11_set_beacon(hapd))
2301 reply_len = -1;
2302 #ifdef CONFIG_TESTING_OPTIONS
2303 } else if (os_strncmp(buf, "RADAR ", 6) == 0) {
2304 if (hostapd_ctrl_iface_radar(hapd, buf + 6))
2305 reply_len = -1;
2306 } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
2307 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
2308 reply_len = -1;
2309 } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
2310 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
2311 reply_len = -1;
2312 } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
2313 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
2314 reply_len = -1;
2315 } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
2316 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
2317 reply_len = -1;
2318 } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) {
2319 if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0)
2320 reply_len = -1;
2321 } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) {
2322 if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0)
2323 reply_len = -1;
2324 } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) {
2325 reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply,
2326 reply_size);
2327 } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) {
2328 if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0)
2329 reply_len = -1;
2330 } else if (os_strcmp(buf, "GET_FAIL") == 0) {
2331 reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size);
2332 #endif /* CONFIG_TESTING_OPTIONS */
2333 } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
2334 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
2335 reply_len = -1;
2336 } else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
2337 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
2338 reply_size);
2339 } else if (os_strcmp(buf, "ERP_FLUSH") == 0) {
2340 ieee802_1x_erp_flush(hapd);
2341 #ifdef RADIUS_SERVER
2342 radius_server_erp_flush(hapd->radius_srv);
2343 #endif /* RADIUS_SERVER */
2344 } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) {
2345 if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13))
2346 reply_len = -1;
2347 } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) {
2348 if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10))
2349 reply_len = -1;
2350 } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) {
2351 reply_len = hostapd_ctrl_iface_log_level(
2352 hapd, buf + 9, reply, reply_size);
2353 #ifdef NEED_AP_MLME
2354 } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) {
2355 reply_len = hostapd_ctrl_iface_track_sta_list(
2356 hapd, reply, reply_size);
2357 #endif /* NEED_AP_MLME */
2358 } else {
2359 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
2360 reply_len = 16;
2361 }
2362
2363 if (reply_len < 0) {
2364 os_memcpy(reply, "FAIL\n", 5);
2365 reply_len = 5;
2366 }
2367
2368 return reply_len;
2369 }
2370
2371
2372 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
2373 void *sock_ctx)
2374 {
2375 struct hostapd_data *hapd = eloop_ctx;
2376 char buf[4096];
2377 int res;
2378 struct sockaddr_un from;
2379 socklen_t fromlen = sizeof(from);
2380 char *reply;
2381 const int reply_size = 4096;
2382 int reply_len;
2383 int level = MSG_DEBUG;
2384
2385 res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
2386 (struct sockaddr *) &from, &fromlen);
2387 if (res < 0) {
2388 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
2389 strerror(errno));
2390 return;
2391 }
2392 buf[res] = '\0';
2393 if (os_strcmp(buf, "PING") == 0)
2394 level = MSG_EXCESSIVE;
2395 wpa_hexdump_ascii(level, "RX ctrl_iface", (u8 *) buf, res);
2396
2397 reply = os_malloc(reply_size);
2398 if (reply == NULL) {
2399 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
2400 fromlen) < 0) {
2401 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2402 strerror(errno));
2403 }
2404 return;
2405 }
2406
2407 reply_len = hostapd_ctrl_iface_receive_process(hapd, buf,
2408 reply, reply_size,
2409 &from, fromlen);
2410
2411 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
2412 fromlen) < 0) {
2413 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2414 strerror(errno));
2415 }
2416 os_free(reply);
2417 }
2418
2419
2420 static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd)
2421 {
2422 char *buf;
2423 size_t len;
2424
2425 if (hapd->conf->ctrl_interface == NULL)
2426 return NULL;
2427
2428 len = os_strlen(hapd->conf->ctrl_interface) +
2429 os_strlen(hapd->conf->iface) + 2;
2430 buf = os_malloc(len);
2431 if (buf == NULL)
2432 return NULL;
2433
2434 os_snprintf(buf, len, "%s/%s",
2435 hapd->conf->ctrl_interface, hapd->conf->iface);
2436 buf[len - 1] = '\0';
2437 return buf;
2438 }
2439
2440
2441 static void hostapd_ctrl_iface_msg_cb(void *ctx, int level,
2442 enum wpa_msg_type type,
2443 const char *txt, size_t len)
2444 {
2445 struct hostapd_data *hapd = ctx;
2446 if (hapd == NULL)
2447 return;
2448 hostapd_ctrl_iface_send(hapd, level, type, txt, len);
2449 }
2450
2451
2452 int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
2453 {
2454 struct sockaddr_un addr;
2455 int s = -1;
2456 char *fname = NULL;
2457
2458 if (hapd->ctrl_sock > -1) {
2459 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
2460 return 0;
2461 }
2462
2463 if (hapd->conf->ctrl_interface == NULL)
2464 return 0;
2465
2466 if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2467 if (errno == EEXIST) {
2468 wpa_printf(MSG_DEBUG, "Using existing control "
2469 "interface directory.");
2470 } else {
2471 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
2472 strerror(errno));
2473 goto fail;
2474 }
2475 }
2476
2477 if (hapd->conf->ctrl_interface_gid_set &&
2478 chown(hapd->conf->ctrl_interface, -1,
2479 hapd->conf->ctrl_interface_gid) < 0) {
2480 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
2481 strerror(errno));
2482 return -1;
2483 }
2484
2485 if (!hapd->conf->ctrl_interface_gid_set &&
2486 hapd->iface->interfaces->ctrl_iface_group &&
2487 chown(hapd->conf->ctrl_interface, -1,
2488 hapd->iface->interfaces->ctrl_iface_group) < 0) {
2489 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
2490 strerror(errno));
2491 return -1;
2492 }
2493
2494 #ifdef ANDROID
2495 /*
2496 * Android is using umask 0077 which would leave the control interface
2497 * directory without group access. This breaks things since Wi-Fi
2498 * framework assumes that this directory can be accessed by other
2499 * applications in the wifi group. Fix this by adding group access even
2500 * if umask value would prevent this.
2501 */
2502 if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2503 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
2504 strerror(errno));
2505 /* Try to continue anyway */
2506 }
2507 #endif /* ANDROID */
2508
2509 if (os_strlen(hapd->conf->ctrl_interface) + 1 +
2510 os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
2511 goto fail;
2512
2513 s = socket(PF_UNIX, SOCK_DGRAM, 0);
2514 if (s < 0) {
2515 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
2516 goto fail;
2517 }
2518
2519 os_memset(&addr, 0, sizeof(addr));
2520 #ifdef __FreeBSD__
2521 addr.sun_len = sizeof(addr);
2522 #endif /* __FreeBSD__ */
2523 addr.sun_family = AF_UNIX;
2524 fname = hostapd_ctrl_iface_path(hapd);
2525 if (fname == NULL)
2526 goto fail;
2527 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
2528 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2529 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
2530 strerror(errno));
2531 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2532 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
2533 " allow connections - assuming it was left"
2534 "over from forced program termination");
2535 if (unlink(fname) < 0) {
2536 wpa_printf(MSG_ERROR,
2537 "Could not unlink existing ctrl_iface socket '%s': %s",
2538 fname, strerror(errno));
2539 goto fail;
2540 }
2541 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
2542 0) {
2543 wpa_printf(MSG_ERROR,
2544 "hostapd-ctrl-iface: bind(PF_UNIX): %s",
2545 strerror(errno));
2546 goto fail;
2547 }
2548 wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
2549 "ctrl_iface socket '%s'", fname);
2550 } else {
2551 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
2552 "be in use - cannot override it");
2553 wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
2554 "not used anymore", fname);
2555 os_free(fname);
2556 fname = NULL;
2557 goto fail;
2558 }
2559 }
2560
2561 if (hapd->conf->ctrl_interface_gid_set &&
2562 chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
2563 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
2564 strerror(errno));
2565 goto fail;
2566 }
2567
2568 if (!hapd->conf->ctrl_interface_gid_set &&
2569 hapd->iface->interfaces->ctrl_iface_group &&
2570 chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
2571 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
2572 strerror(errno));
2573 goto fail;
2574 }
2575
2576 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
2577 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
2578 strerror(errno));
2579 goto fail;
2580 }
2581 os_free(fname);
2582
2583 hapd->ctrl_sock = s;
2584 if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd,
2585 NULL) < 0) {
2586 hostapd_ctrl_iface_deinit(hapd);
2587 return -1;
2588 }
2589 hapd->msg_ctx = hapd;
2590 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
2591
2592 return 0;
2593
2594 fail:
2595 if (s >= 0)
2596 close(s);
2597 if (fname) {
2598 unlink(fname);
2599 os_free(fname);
2600 }
2601 return -1;
2602 }
2603
2604
2605 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
2606 {
2607 struct wpa_ctrl_dst *dst, *prev;
2608
2609 if (hapd->ctrl_sock > -1) {
2610 char *fname;
2611 eloop_unregister_read_sock(hapd->ctrl_sock);
2612 close(hapd->ctrl_sock);
2613 hapd->ctrl_sock = -1;
2614 fname = hostapd_ctrl_iface_path(hapd);
2615 if (fname)
2616 unlink(fname);
2617 os_free(fname);
2618
2619 if (hapd->conf->ctrl_interface &&
2620 rmdir(hapd->conf->ctrl_interface) < 0) {
2621 if (errno == ENOTEMPTY) {
2622 wpa_printf(MSG_DEBUG, "Control interface "
2623 "directory not empty - leaving it "
2624 "behind");
2625 } else {
2626 wpa_printf(MSG_ERROR,
2627 "rmdir[ctrl_interface=%s]: %s",
2628 hapd->conf->ctrl_interface,
2629 strerror(errno));
2630 }
2631 }
2632 }
2633
2634 dst = hapd->ctrl_dst;
2635 hapd->ctrl_dst = NULL;
2636 while (dst) {
2637 prev = dst;
2638 dst = dst->next;
2639 os_free(prev);
2640 }
2641
2642 #ifdef CONFIG_TESTING_OPTIONS
2643 l2_packet_deinit(hapd->l2_test);
2644 hapd->l2_test = NULL;
2645 #endif /* CONFIG_TESTING_OPTIONS */
2646 }
2647
2648
2649 static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces,
2650 char *buf)
2651 {
2652 if (hostapd_add_iface(interfaces, buf) < 0) {
2653 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf);
2654 return -1;
2655 }
2656 return 0;
2657 }
2658
2659
2660 static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces,
2661 char *buf)
2662 {
2663 if (hostapd_remove_iface(interfaces, buf) < 0) {
2664 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf);
2665 return -1;
2666 }
2667 return 0;
2668 }
2669
2670
2671 static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces,
2672 struct sockaddr_un *from,
2673 socklen_t fromlen)
2674 {
2675 struct wpa_ctrl_dst *dst;
2676
2677 dst = os_zalloc(sizeof(*dst));
2678 if (dst == NULL)
2679 return -1;
2680 os_memcpy(&dst->addr, from, sizeof(struct sockaddr_un));
2681 dst->addrlen = fromlen;
2682 dst->debug_level = MSG_INFO;
2683 dst->next = interfaces->global_ctrl_dst;
2684 interfaces->global_ctrl_dst = dst;
2685 wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor attached (global)",
2686 from->sun_path,
2687 fromlen - offsetof(struct sockaddr_un, sun_path));
2688 return 0;
2689 }
2690
2691
2692 static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces,
2693 struct sockaddr_un *from,
2694 socklen_t fromlen)
2695 {
2696 struct wpa_ctrl_dst *dst, *prev = NULL;
2697
2698 dst = interfaces->global_ctrl_dst;
2699 while (dst) {
2700 if (fromlen == dst->addrlen &&
2701 os_memcmp(from->sun_path, dst->addr.sun_path,
2702 fromlen - offsetof(struct sockaddr_un, sun_path))
2703 == 0) {
2704 wpa_hexdump(MSG_DEBUG,
2705 "CTRL_IFACE monitor detached (global)",
2706 from->sun_path,
2707 fromlen -
2708 offsetof(struct sockaddr_un, sun_path));
2709 if (prev == NULL)
2710 interfaces->global_ctrl_dst = dst->next;
2711 else
2712 prev->next = dst->next;
2713 os_free(dst);
2714 return 0;
2715 }
2716 prev = dst;
2717 dst = dst->next;
2718 }
2719 return -1;
2720 }
2721
2722
2723 static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces)
2724 {
2725 #ifdef CONFIG_WPS_TESTING
2726 wps_version_number = 0x20;
2727 wps_testing_dummy_cred = 0;
2728 wps_corrupt_pkhash = 0;
2729 #endif /* CONFIG_WPS_TESTING */
2730 }
2731
2732
2733 #ifdef CONFIG_FST
2734
2735 static int
2736 hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces,
2737 const char *cmd)
2738 {
2739 char ifname[IFNAMSIZ + 1];
2740 struct fst_iface_cfg cfg;
2741 struct hostapd_data *hapd;
2742 struct fst_wpa_obj iface_obj;
2743
2744 if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) {
2745 hapd = hostapd_get_iface(interfaces, ifname);
2746 if (hapd) {
2747 if (hapd->iface->fst) {
2748 wpa_printf(MSG_INFO, "FST: Already attached");
2749 return -1;
2750 }
2751 fst_hostapd_fill_iface_obj(hapd, &iface_obj);
2752 hapd->iface->fst = fst_attach(ifname, hapd->own_addr,
2753 &iface_obj, &cfg);
2754 if (hapd->iface->fst)
2755 return 0;
2756 }
2757 }
2758
2759 return -EINVAL;
2760 }
2761
2762
2763 static int
2764 hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces,
2765 const char *cmd)
2766 {
2767 char ifname[IFNAMSIZ + 1];
2768 struct hostapd_data * hapd;
2769
2770 if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) {
2771 hapd = hostapd_get_iface(interfaces, ifname);
2772 if (hapd) {
2773 if (!fst_iface_detach(ifname)) {
2774 hapd->iface->fst = NULL;
2775 hapd->iface->fst_ies = NULL;
2776 return 0;
2777 }
2778 }
2779 }
2780
2781 return -EINVAL;
2782 }
2783
2784 #endif /* CONFIG_FST */
2785
2786
2787 static struct hostapd_data *
2788 hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces,
2789 const char *ifname)
2790 {
2791 size_t i, j;
2792
2793 for (i = 0; i < interfaces->count; i++) {
2794 struct hostapd_iface *iface = interfaces->iface[i];
2795
2796 for (j = 0; j < iface->num_bss; j++) {
2797 struct hostapd_data *hapd;
2798
2799 hapd = iface->bss[j];
2800 if (os_strcmp(ifname, hapd->conf->iface) == 0)
2801 return hapd;
2802 }
2803 }
2804
2805 return NULL;
2806 }
2807
2808
2809 static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd,
2810 struct hostapd_data *dst_hapd,
2811 const char *param)
2812 {
2813 int res;
2814 char *value;
2815
2816 value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
2817 if (!value) {
2818 wpa_printf(MSG_ERROR,
2819 "DUP: cannot allocate buffer to stringify %s",
2820 param);
2821 goto error_return;
2822 }
2823
2824 if (os_strcmp(param, "wpa") == 0) {
2825 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d",
2826 src_hapd->conf->wpa);
2827 } else if (os_strcmp(param, "wpa_key_mgmt") == 0 &&
2828 src_hapd->conf->wpa_key_mgmt) {
2829 res = hostapd_ctrl_iface_get_key_mgmt(
2830 src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
2831 if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res))
2832 goto error_stringify;
2833 } else if (os_strcmp(param, "wpa_pairwise") == 0 &&
2834 src_hapd->conf->wpa_pairwise) {
2835 res = wpa_write_ciphers(value,
2836 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
2837 src_hapd->conf->wpa_pairwise, " ");
2838 if (res < 0)
2839 goto error_stringify;
2840 } else if (os_strcmp(param, "rsn_pairwise") == 0 &&
2841 src_hapd->conf->rsn_pairwise) {
2842 res = wpa_write_ciphers(value,
2843 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
2844 src_hapd->conf->rsn_pairwise, " ");
2845 if (res < 0)
2846 goto error_stringify;
2847 } else if (os_strcmp(param, "wpa_passphrase") == 0 &&
2848 src_hapd->conf->ssid.wpa_passphrase) {
2849 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s",
2850 src_hapd->conf->ssid.wpa_passphrase);
2851 } else if (os_strcmp(param, "wpa_psk") == 0 &&
2852 src_hapd->conf->ssid.wpa_psk_set) {
2853 wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
2854 src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
2855 } else {
2856 wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param);
2857 goto error_return;
2858 }
2859
2860 res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value);
2861 os_free(value);
2862 return res;
2863
2864 error_stringify:
2865 wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param);
2866 error_return:
2867 os_free(value);
2868 return -1;
2869 }
2870
2871
2872 static int
2873 hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces,
2874 char *cmd)
2875 {
2876 char *p_start = cmd, *p_end;
2877 struct hostapd_data *src_hapd, *dst_hapd;
2878
2879 /* cmd: "<src ifname> <dst ifname> <variable name> */
2880
2881 p_end = os_strchr(p_start, ' ');
2882 if (!p_end) {
2883 wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'",
2884 cmd);
2885 return -1;
2886 }
2887
2888 *p_end = '\0';
2889 src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
2890 if (!src_hapd) {
2891 wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'",
2892 p_start);
2893 return -1;
2894 }
2895
2896 p_start = p_end + 1;
2897 p_end = os_strchr(p_start, ' ');
2898 if (!p_end) {
2899 wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'",
2900 cmd);
2901 return -1;
2902 }
2903
2904 *p_end = '\0';
2905 dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
2906 if (!dst_hapd) {
2907 wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'",
2908 p_start);
2909 return -1;
2910 }
2911
2912 p_start = p_end + 1;
2913 return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start);
2914 }
2915
2916
2917 static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces,
2918 const char *ifname,
2919 char *buf, char *reply,
2920 int reply_size,
2921 struct sockaddr_un *from,
2922 socklen_t fromlen)
2923 {
2924 struct hostapd_data *hapd;
2925
2926 hapd = hostapd_interfaces_get_hapd(interfaces, ifname);
2927 if (hapd == NULL) {
2928 int res;
2929
2930 res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n");
2931 if (os_snprintf_error(reply_size, res))
2932 return -1;
2933 return res;
2934 }
2935
2936 return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size,
2937 from, fromlen);
2938 }
2939
2940
2941 static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
2942 void *sock_ctx)
2943 {
2944 void *interfaces = eloop_ctx;
2945 char buf[256];
2946 int res;
2947 struct sockaddr_un from;
2948 socklen_t fromlen = sizeof(from);
2949 char *reply;
2950 int reply_len;
2951 const int reply_size = 4096;
2952
2953 res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
2954 (struct sockaddr *) &from, &fromlen);
2955 if (res < 0) {
2956 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
2957 strerror(errno));
2958 return;
2959 }
2960 buf[res] = '\0';
2961 wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf);
2962
2963 reply = os_malloc(reply_size);
2964 if (reply == NULL) {
2965 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
2966 fromlen) < 0) {
2967 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2968 strerror(errno));
2969 }
2970 return;
2971 }
2972
2973 os_memcpy(reply, "OK\n", 3);
2974 reply_len = 3;
2975
2976 if (os_strncmp(buf, "IFNAME=", 7) == 0) {
2977 char *pos = os_strchr(buf + 7, ' ');
2978
2979 if (pos) {
2980 *pos++ = '\0';
2981 reply_len = hostapd_global_ctrl_iface_ifname(
2982 interfaces, buf + 7, pos, reply, reply_size,
2983 &from, fromlen);
2984 goto send_reply;
2985 }
2986 }
2987
2988 if (os_strcmp(buf, "PING") == 0) {
2989 os_memcpy(reply, "PONG\n", 5);
2990 reply_len = 5;
2991 } else if (os_strncmp(buf, "RELOG", 5) == 0) {
2992 if (wpa_debug_reopen_file() < 0)
2993 reply_len = -1;
2994 } else if (os_strcmp(buf, "FLUSH") == 0) {
2995 hostapd_ctrl_iface_flush(interfaces);
2996 } else if (os_strncmp(buf, "ADD ", 4) == 0) {
2997 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0)
2998 reply_len = -1;
2999 } else if (os_strncmp(buf, "REMOVE ", 7) == 0) {
3000 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0)
3001 reply_len = -1;
3002 } else if (os_strcmp(buf, "ATTACH") == 0) {
3003 if (hostapd_global_ctrl_iface_attach(interfaces, &from,
3004 fromlen))
3005 reply_len = -1;
3006 } else if (os_strcmp(buf, "DETACH") == 0) {
3007 if (hostapd_global_ctrl_iface_detach(interfaces, &from,
3008 fromlen))
3009 reply_len = -1;
3010 #ifdef CONFIG_MODULE_TESTS
3011 } else if (os_strcmp(buf, "MODULE_TESTS") == 0) {
3012 int hapd_module_tests(void);
3013 if (hapd_module_tests() < 0)
3014 reply_len = -1;
3015 #endif /* CONFIG_MODULE_TESTS */
3016 #ifdef CONFIG_FST
3017 } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) {
3018 if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11))
3019 reply_len = os_snprintf(reply, reply_size, "OK\n");
3020 else
3021 reply_len = -1;
3022 } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) {
3023 if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11))
3024 reply_len = os_snprintf(reply, reply_size, "OK\n");
3025 else
3026 reply_len = -1;
3027 } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) {
3028 reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size);
3029 #endif /* CONFIG_FST */
3030 } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) {
3031 if (!hostapd_global_ctrl_iface_dup_network(interfaces,
3032 buf + 12))
3033 reply_len = os_snprintf(reply, reply_size, "OK\n");
3034 else
3035 reply_len = -1;
3036 } else {
3037 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
3038 "ignored");
3039 reply_len = -1;
3040 }
3041
3042 send_reply:
3043 if (reply_len < 0) {
3044 os_memcpy(reply, "FAIL\n", 5);
3045 reply_len = 5;
3046 }
3047
3048 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
3049 fromlen) < 0) {
3050 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
3051 strerror(errno));
3052 }
3053 os_free(reply);
3054 }
3055
3056
3057 static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface)
3058 {
3059 char *buf;
3060 size_t len;
3061
3062 if (interface->global_iface_path == NULL)
3063 return NULL;
3064
3065 len = os_strlen(interface->global_iface_path) +
3066 os_strlen(interface->global_iface_name) + 2;
3067 buf = os_malloc(len);
3068 if (buf == NULL)
3069 return NULL;
3070
3071 os_snprintf(buf, len, "%s/%s", interface->global_iface_path,
3072 interface->global_iface_name);
3073 buf[len - 1] = '\0';
3074 return buf;
3075 }
3076
3077
3078 int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface)
3079 {
3080 struct sockaddr_un addr;
3081 int s = -1;
3082 char *fname = NULL;
3083
3084 if (interface->global_iface_path == NULL) {
3085 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!");
3086 return 0;
3087 }
3088
3089 if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) {
3090 if (errno == EEXIST) {
3091 wpa_printf(MSG_DEBUG, "Using existing control "
3092 "interface directory.");
3093 } else {
3094 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
3095 strerror(errno));
3096 goto fail;
3097 }
3098 } else if (interface->ctrl_iface_group &&
3099 chown(interface->global_iface_path, -1,
3100 interface->ctrl_iface_group) < 0) {
3101 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
3102 strerror(errno));
3103 goto fail;
3104 }
3105
3106 if (os_strlen(interface->global_iface_path) + 1 +
3107 os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path))
3108 goto fail;
3109
3110 s = socket(PF_UNIX, SOCK_DGRAM, 0);
3111 if (s < 0) {
3112 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
3113 goto fail;
3114 }
3115
3116 os_memset(&addr, 0, sizeof(addr));
3117 #ifdef __FreeBSD__
3118 addr.sun_len = sizeof(addr);
3119 #endif /* __FreeBSD__ */
3120 addr.sun_family = AF_UNIX;
3121 fname = hostapd_global_ctrl_iface_path(interface);
3122 if (fname == NULL)
3123 goto fail;
3124 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
3125 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
3126 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
3127 strerror(errno));
3128 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
3129 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
3130 " allow connections - assuming it was left"
3131 "over from forced program termination");
3132 if (unlink(fname) < 0) {
3133 wpa_printf(MSG_ERROR,
3134 "Could not unlink existing ctrl_iface socket '%s': %s",
3135 fname, strerror(errno));
3136 goto fail;
3137 }
3138 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
3139 0) {
3140 wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s",
3141 strerror(errno));
3142 goto fail;
3143 }
3144 wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
3145 "ctrl_iface socket '%s'", fname);
3146 } else {
3147 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
3148 "be in use - cannot override it");
3149 wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
3150 "not used anymore", fname);
3151 os_free(fname);
3152 fname = NULL;
3153 goto fail;
3154 }
3155 }
3156
3157 if (interface->ctrl_iface_group &&
3158 chown(fname, -1, interface->ctrl_iface_group) < 0) {
3159 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
3160 strerror(errno));
3161 goto fail;
3162 }
3163
3164 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
3165 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
3166 strerror(errno));
3167 goto fail;
3168 }
3169 os_free(fname);
3170
3171 interface->global_ctrl_sock = s;
3172 eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive,
3173 interface, NULL);
3174
3175 return 0;
3176
3177 fail:
3178 if (s >= 0)
3179 close(s);
3180 if (fname) {
3181 unlink(fname);
3182 os_free(fname);
3183 }
3184 return -1;
3185 }
3186
3187
3188 void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces)
3189 {
3190 char *fname = NULL;
3191 struct wpa_ctrl_dst *dst, *prev;
3192
3193 if (interfaces->global_ctrl_sock > -1) {
3194 eloop_unregister_read_sock(interfaces->global_ctrl_sock);
3195 close(interfaces->global_ctrl_sock);
3196 interfaces->global_ctrl_sock = -1;
3197 fname = hostapd_global_ctrl_iface_path(interfaces);
3198 if (fname) {
3199 unlink(fname);
3200 os_free(fname);
3201 }
3202
3203 if (interfaces->global_iface_path &&
3204 rmdir(interfaces->global_iface_path) < 0) {
3205 if (errno == ENOTEMPTY) {
3206 wpa_printf(MSG_DEBUG, "Control interface "
3207 "directory not empty - leaving it "
3208 "behind");
3209 } else {
3210 wpa_printf(MSG_ERROR,
3211 "rmdir[ctrl_interface=%s]: %s",
3212 interfaces->global_iface_path,
3213 strerror(errno));
3214 }
3215 }
3216 }
3217
3218 os_free(interfaces->global_iface_path);
3219 interfaces->global_iface_path = NULL;
3220
3221 dst = interfaces->global_ctrl_dst;
3222 interfaces->global_ctrl_dst = NULL;
3223 while (dst) {
3224 prev = dst;
3225 dst = dst->next;
3226 os_free(prev);
3227 }
3228 }
3229
3230
3231 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
3232 enum wpa_msg_type type,
3233 const char *buf, size_t len)
3234 {
3235 struct wpa_ctrl_dst *dst, *next;
3236 struct msghdr msg;
3237 int idx;
3238 struct iovec io[2];
3239 char levelstr[10];
3240 int s;
3241
3242 if (type != WPA_MSG_ONLY_GLOBAL) {
3243 s = hapd->ctrl_sock;
3244 dst = hapd->ctrl_dst;
3245 } else {
3246 s = hapd->iface->interfaces->global_ctrl_sock;
3247 dst = hapd->iface->interfaces->global_ctrl_dst;
3248 }
3249
3250 if (s < 0 || dst == NULL)
3251 return;
3252
3253 os_snprintf(levelstr, sizeof(levelstr), "<%d>", level);
3254 io[0].iov_base = levelstr;
3255 io[0].iov_len = os_strlen(levelstr);
3256 io[1].iov_base = (char *) buf;
3257 io[1].iov_len = len;
3258 os_memset(&msg, 0, sizeof(msg));
3259 msg.msg_iov = io;
3260 msg.msg_iovlen = 2;
3261
3262 idx = 0;
3263 while (dst) {
3264 next = dst->next;
3265 if (level >= dst->debug_level) {
3266 wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor send",
3267 (u8 *) dst->addr.sun_path, dst->addrlen -
3268 offsetof(struct sockaddr_un, sun_path));
3269 msg.msg_name = &dst->addr;
3270 msg.msg_namelen = dst->addrlen;
3271 if (sendmsg(s, &msg, 0) < 0) {
3272 int _errno = errno;
3273 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
3274 "%d - %s",
3275 idx, errno, strerror(errno));
3276 dst->errors++;
3277 if (dst->errors > 10 || _errno == ENOENT) {
3278 if (type != WPA_MSG_ONLY_GLOBAL)
3279 hostapd_ctrl_iface_detach(
3280 hapd, &dst->addr,
3281 dst->addrlen);
3282 else
3283 hostapd_global_ctrl_iface_detach(
3284 hapd->iface->interfaces,
3285 &dst->addr,
3286 dst->addrlen);
3287 }
3288 } else
3289 dst->errors = 0;
3290 }
3291 idx++;
3292 dst = next;
3293 }
3294 }
3295
3296 #endif /* CONFIG_NATIVE_WINDOWS */
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