1 /*
2 * hostapd / UNIX domain socket -based control interface
3 * Copyright (c) 2004-2018, 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 #ifdef __NetBSD__
15 #include <net/if_ether.h>
16 #else
17 #include <net/ethernet.h>
18 #endif
19 #include <netinet/ip.h>
20 #endif /* CONFIG_TESTING_OPTIONS */
21
22 #include <sys/un.h>
23 #include <sys/stat.h>
24 #include <stddef.h>
25
26 #ifdef CONFIG_CTRL_IFACE_UDP
27 #include <netdb.h>
28 #endif /* CONFIG_CTRL_IFACE_UDP */
29
30 #include "utils/common.h"
31 #include "utils/eloop.h"
32 #include "utils/module_tests.h"
33 #include "common/version.h"
34 #include "common/ieee802_11_defs.h"
35 #include "common/ctrl_iface_common.h"
36 #ifdef CONFIG_DPP
37 #include "common/dpp.h"
38 #endif /* CONFIG_DPP */
39 #include "common/wpa_ctrl.h"
40 #include "common/ptksa_cache.h"
41 #include "crypto/tls.h"
42 #include "drivers/driver.h"
43 #include "eapol_auth/eapol_auth_sm.h"
44 #include "radius/radius_client.h"
45 #include "radius/radius_server.h"
46 #include "l2_packet/l2_packet.h"
47 #include "ap/hostapd.h"
48 #include "ap/ap_config.h"
49 #include "ap/ieee802_1x.h"
50 #include "ap/wpa_auth.h"
51 #include "ap/pmksa_cache_auth.h"
52 #include "ap/ieee802_11.h"
53 #include "ap/sta_info.h"
54 #include "ap/wps_hostapd.h"
55 #include "ap/ctrl_iface_ap.h"
56 #include "ap/ap_drv_ops.h"
57 #include "ap/hs20.h"
58 #include "ap/wnm_ap.h"
59 #include "ap/wpa_auth.h"
60 #include "ap/beacon.h"
61 #include "ap/neighbor_db.h"
62 #include "ap/rrm.h"
63 #include "ap/dpp_hostapd.h"
64 #include "ap/dfs.h"
65 #include "wps/wps_defs.h"
66 #include "wps/wps.h"
67 #include "fst/fst_ctrl_iface.h"
68 #include "config_file.h"
69 #include "ctrl_iface.h"
70
71
72 #define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256
73
74 #ifdef CONFIG_CTRL_IFACE_UDP
75 #define HOSTAPD_CTRL_IFACE_PORT 8877
76 #define HOSTAPD_CTRL_IFACE_PORT_LIMIT 50
77 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT 8878
78 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT 50
79 #endif /* CONFIG_CTRL_IFACE_UDP */
80
81 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
82 enum wpa_msg_type type,
83 const char *buf, size_t len);
84
85
hostapd_ctrl_iface_attach(struct hostapd_data * hapd,struct sockaddr_storage * from,socklen_t fromlen,const char * input)86 static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd,
87 struct sockaddr_storage *from,
88 socklen_t fromlen, const char *input)
89 {
90 return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen, input);
91 }
92
93
hostapd_ctrl_iface_detach(struct hostapd_data * hapd,struct sockaddr_storage * from,socklen_t fromlen)94 static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd,
95 struct sockaddr_storage *from,
96 socklen_t fromlen)
97 {
98 return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen);
99 }
100
101
hostapd_ctrl_iface_level(struct hostapd_data * hapd,struct sockaddr_storage * from,socklen_t fromlen,char * level)102 static int hostapd_ctrl_iface_level(struct hostapd_data *hapd,
103 struct sockaddr_storage *from,
104 socklen_t fromlen,
105 char *level)
106 {
107 return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level);
108 }
109
110
hostapd_ctrl_iface_new_sta(struct hostapd_data * hapd,const char * txtaddr)111 static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
112 const char *txtaddr)
113 {
114 u8 addr[ETH_ALEN];
115 struct sta_info *sta;
116
117 wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr);
118
119 if (hwaddr_aton(txtaddr, addr))
120 return -1;
121
122 sta = ap_get_sta(hapd, addr);
123 if (sta)
124 return 0;
125
126 wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface "
127 "notification", MAC2STR(addr));
128 sta = ap_sta_add(hapd, addr);
129 if (sta == NULL)
130 return -1;
131
132 hostapd_new_assoc_sta(hapd, sta, 0);
133 return 0;
134 }
135
136
137 #ifdef NEED_AP_MLME
hostapd_ctrl_iface_sa_query(struct hostapd_data * hapd,const char * txtaddr)138 static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd,
139 const char *txtaddr)
140 {
141 u8 addr[ETH_ALEN];
142 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
143
144 wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr);
145
146 if (hwaddr_aton(txtaddr, addr) ||
147 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0)
148 return -1;
149
150 ieee802_11_send_sa_query_req(hapd, addr, trans_id);
151
152 return 0;
153 }
154 #endif /* NEED_AP_MLME */
155
156
157 #ifdef CONFIG_WPS
hostapd_ctrl_iface_wps_pin(struct hostapd_data * hapd,char * txt)158 static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
159 {
160 char *pin = os_strchr(txt, ' ');
161 char *timeout_txt;
162 int timeout;
163 u8 addr_buf[ETH_ALEN], *addr = NULL;
164 char *pos;
165
166 if (pin == NULL)
167 return -1;
168 *pin++ = '\0';
169
170 timeout_txt = os_strchr(pin, ' ');
171 if (timeout_txt) {
172 *timeout_txt++ = '\0';
173 timeout = atoi(timeout_txt);
174 pos = os_strchr(timeout_txt, ' ');
175 if (pos) {
176 *pos++ = '\0';
177 if (hwaddr_aton(pos, addr_buf) == 0)
178 addr = addr_buf;
179 }
180 } else
181 timeout = 0;
182
183 return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout);
184 }
185
186
hostapd_ctrl_iface_wps_check_pin(struct hostapd_data * hapd,char * cmd,char * buf,size_t buflen)187 static int hostapd_ctrl_iface_wps_check_pin(
188 struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen)
189 {
190 char pin[9];
191 size_t len;
192 char *pos;
193 int ret;
194
195 wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN",
196 (u8 *) cmd, os_strlen(cmd));
197 for (pos = cmd, len = 0; *pos != '\0'; pos++) {
198 if (*pos < '0' || *pos > '9')
199 continue;
200 pin[len++] = *pos;
201 if (len == 9) {
202 wpa_printf(MSG_DEBUG, "WPS: Too long PIN");
203 return -1;
204 }
205 }
206 if (len != 4 && len != 8) {
207 wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len);
208 return -1;
209 }
210 pin[len] = '\0';
211
212 if (len == 8) {
213 unsigned int pin_val;
214 pin_val = atoi(pin);
215 if (!wps_pin_valid(pin_val)) {
216 wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
217 ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
218 if (os_snprintf_error(buflen, ret))
219 return -1;
220 return ret;
221 }
222 }
223
224 ret = os_snprintf(buf, buflen, "%s", pin);
225 if (os_snprintf_error(buflen, ret))
226 return -1;
227
228 return ret;
229 }
230
231
232 #ifdef CONFIG_WPS_NFC
hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data * hapd,char * pos)233 static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd,
234 char *pos)
235 {
236 size_t len;
237 struct wpabuf *buf;
238 int ret;
239
240 len = os_strlen(pos);
241 if (len & 0x01)
242 return -1;
243 len /= 2;
244
245 buf = wpabuf_alloc(len);
246 if (buf == NULL)
247 return -1;
248 if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) {
249 wpabuf_free(buf);
250 return -1;
251 }
252
253 ret = hostapd_wps_nfc_tag_read(hapd, buf);
254 wpabuf_free(buf);
255
256 return ret;
257 }
258
259
hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data * hapd,char * cmd,char * reply,size_t max_len)260 static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd,
261 char *cmd, char *reply,
262 size_t max_len)
263 {
264 int ndef;
265 struct wpabuf *buf;
266 int res;
267
268 if (os_strcmp(cmd, "WPS") == 0)
269 ndef = 0;
270 else if (os_strcmp(cmd, "NDEF") == 0)
271 ndef = 1;
272 else
273 return -1;
274
275 buf = hostapd_wps_nfc_config_token(hapd, ndef);
276 if (buf == NULL)
277 return -1;
278
279 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
280 wpabuf_len(buf));
281 reply[res++] = '\n';
282 reply[res] = '\0';
283
284 wpabuf_free(buf);
285
286 return res;
287 }
288
289
hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data * hapd,char * reply,size_t max_len,int ndef)290 static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd,
291 char *reply, size_t max_len,
292 int ndef)
293 {
294 struct wpabuf *buf;
295 int res;
296
297 buf = hostapd_wps_nfc_token_gen(hapd, ndef);
298 if (buf == NULL)
299 return -1;
300
301 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
302 wpabuf_len(buf));
303 reply[res++] = '\n';
304 reply[res] = '\0';
305
306 wpabuf_free(buf);
307
308 return res;
309 }
310
311
hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data * hapd,char * cmd,char * reply,size_t max_len)312 static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd,
313 char *cmd, char *reply,
314 size_t max_len)
315 {
316 if (os_strcmp(cmd, "WPS") == 0)
317 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
318 max_len, 0);
319
320 if (os_strcmp(cmd, "NDEF") == 0)
321 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
322 max_len, 1);
323
324 if (os_strcmp(cmd, "enable") == 0)
325 return hostapd_wps_nfc_token_enable(hapd);
326
327 if (os_strcmp(cmd, "disable") == 0) {
328 hostapd_wps_nfc_token_disable(hapd);
329 return 0;
330 }
331
332 return -1;
333 }
334
335
hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data * hapd,char * cmd,char * reply,size_t max_len)336 static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
337 char *cmd, char *reply,
338 size_t max_len)
339 {
340 struct wpabuf *buf;
341 int res;
342 char *pos;
343 int ndef;
344
345 pos = os_strchr(cmd, ' ');
346 if (pos == NULL)
347 return -1;
348 *pos++ = '\0';
349
350 if (os_strcmp(cmd, "WPS") == 0)
351 ndef = 0;
352 else if (os_strcmp(cmd, "NDEF") == 0)
353 ndef = 1;
354 else
355 return -1;
356
357 if (os_strcmp(pos, "WPS-CR") == 0)
358 buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
359 else
360 buf = NULL;
361 if (buf == NULL)
362 return -1;
363
364 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
365 wpabuf_len(buf));
366 reply[res++] = '\n';
367 reply[res] = '\0';
368
369 wpabuf_free(buf);
370
371 return res;
372 }
373
374
hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data * hapd,char * cmd)375 static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
376 char *cmd)
377 {
378 size_t len;
379 struct wpabuf *req, *sel;
380 int ret;
381 char *pos, *role, *type, *pos2;
382
383 role = cmd;
384 pos = os_strchr(role, ' ');
385 if (pos == NULL)
386 return -1;
387 *pos++ = '\0';
388
389 type = pos;
390 pos = os_strchr(type, ' ');
391 if (pos == NULL)
392 return -1;
393 *pos++ = '\0';
394
395 pos2 = os_strchr(pos, ' ');
396 if (pos2 == NULL)
397 return -1;
398 *pos2++ = '\0';
399
400 len = os_strlen(pos);
401 if (len & 0x01)
402 return -1;
403 len /= 2;
404
405 req = wpabuf_alloc(len);
406 if (req == NULL)
407 return -1;
408 if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
409 wpabuf_free(req);
410 return -1;
411 }
412
413 len = os_strlen(pos2);
414 if (len & 0x01) {
415 wpabuf_free(req);
416 return -1;
417 }
418 len /= 2;
419
420 sel = wpabuf_alloc(len);
421 if (sel == NULL) {
422 wpabuf_free(req);
423 return -1;
424 }
425 if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
426 wpabuf_free(req);
427 wpabuf_free(sel);
428 return -1;
429 }
430
431 if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) {
432 ret = hostapd_wps_nfc_report_handover(hapd, req, sel);
433 } else {
434 wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
435 "reported: role=%s type=%s", role, type);
436 ret = -1;
437 }
438 wpabuf_free(req);
439 wpabuf_free(sel);
440
441 return ret;
442 }
443
444 #endif /* CONFIG_WPS_NFC */
445
446
hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data * hapd,char * txt,char * buf,size_t buflen)447 static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
448 char *buf, size_t buflen)
449 {
450 int timeout = 300;
451 char *pos;
452 const char *pin_txt;
453
454 pos = os_strchr(txt, ' ');
455 if (pos)
456 *pos++ = '\0';
457
458 if (os_strcmp(txt, "disable") == 0) {
459 hostapd_wps_ap_pin_disable(hapd);
460 return os_snprintf(buf, buflen, "OK\n");
461 }
462
463 if (os_strcmp(txt, "random") == 0) {
464 if (pos)
465 timeout = atoi(pos);
466 pin_txt = hostapd_wps_ap_pin_random(hapd, timeout);
467 if (pin_txt == NULL)
468 return -1;
469 return os_snprintf(buf, buflen, "%s", pin_txt);
470 }
471
472 if (os_strcmp(txt, "get") == 0) {
473 pin_txt = hostapd_wps_ap_pin_get(hapd);
474 if (pin_txt == NULL)
475 return -1;
476 return os_snprintf(buf, buflen, "%s", pin_txt);
477 }
478
479 if (os_strcmp(txt, "set") == 0) {
480 char *pin;
481 if (pos == NULL)
482 return -1;
483 pin = pos;
484 pos = os_strchr(pos, ' ');
485 if (pos) {
486 *pos++ = '\0';
487 timeout = atoi(pos);
488 }
489 if (os_strlen(pin) > buflen)
490 return -1;
491 if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0)
492 return -1;
493 return os_snprintf(buf, buflen, "%s", pin);
494 }
495
496 return -1;
497 }
498
499
hostapd_ctrl_iface_wps_config(struct hostapd_data * hapd,char * txt)500 static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt)
501 {
502 char *pos;
503 char *ssid, *auth, *encr = NULL, *key = NULL;
504
505 ssid = txt;
506 pos = os_strchr(txt, ' ');
507 if (!pos)
508 return -1;
509 *pos++ = '\0';
510
511 auth = pos;
512 pos = os_strchr(pos, ' ');
513 if (pos) {
514 *pos++ = '\0';
515 encr = pos;
516 pos = os_strchr(pos, ' ');
517 if (pos) {
518 *pos++ = '\0';
519 key = pos;
520 }
521 }
522
523 return hostapd_wps_config_ap(hapd, ssid, auth, encr, key);
524 }
525
526
pbc_status_str(enum pbc_status status)527 static const char * pbc_status_str(enum pbc_status status)
528 {
529 switch (status) {
530 case WPS_PBC_STATUS_DISABLE:
531 return "Disabled";
532 case WPS_PBC_STATUS_ACTIVE:
533 return "Active";
534 case WPS_PBC_STATUS_TIMEOUT:
535 return "Timed-out";
536 case WPS_PBC_STATUS_OVERLAP:
537 return "Overlap";
538 default:
539 return "Unknown";
540 }
541 }
542
543
hostapd_ctrl_iface_wps_get_status(struct hostapd_data * hapd,char * buf,size_t buflen)544 static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
545 char *buf, size_t buflen)
546 {
547 int ret;
548 char *pos, *end;
549
550 pos = buf;
551 end = buf + buflen;
552
553 ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
554 pbc_status_str(hapd->wps_stats.pbc_status));
555
556 if (os_snprintf_error(end - pos, ret))
557 return pos - buf;
558 pos += ret;
559
560 ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n",
561 (hapd->wps_stats.status == WPS_STATUS_SUCCESS ?
562 "Success":
563 (hapd->wps_stats.status == WPS_STATUS_FAILURE ?
564 "Failed" : "None")));
565
566 if (os_snprintf_error(end - pos, ret))
567 return pos - buf;
568 pos += ret;
569
570 /* If status == Failure - Add possible Reasons */
571 if(hapd->wps_stats.status == WPS_STATUS_FAILURE &&
572 hapd->wps_stats.failure_reason > 0) {
573 ret = os_snprintf(pos, end - pos,
574 "Failure Reason: %s\n",
575 wps_ei_str(hapd->wps_stats.failure_reason));
576
577 if (os_snprintf_error(end - pos, ret))
578 return pos - buf;
579 pos += ret;
580 }
581
582 if (hapd->wps_stats.status) {
583 ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
584 MAC2STR(hapd->wps_stats.peer_addr));
585
586 if (os_snprintf_error(end - pos, ret))
587 return pos - buf;
588 pos += ret;
589 }
590
591 return pos - buf;
592 }
593
594 #endif /* CONFIG_WPS */
595
596 #ifdef CONFIG_HS20
597
hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data * hapd,const char * cmd)598 static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd,
599 const char *cmd)
600 {
601 u8 addr[ETH_ALEN];
602 const char *url;
603
604 if (hwaddr_aton(cmd, addr))
605 return -1;
606 url = cmd + 17;
607 if (*url == '\0') {
608 url = NULL;
609 } else {
610 if (*url != ' ')
611 return -1;
612 url++;
613 if (*url == '\0')
614 url = NULL;
615 }
616
617 return hs20_send_wnm_notification(hapd, addr, 1, url);
618 }
619
620
hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data * hapd,const char * cmd)621 static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd,
622 const char *cmd)
623 {
624 u8 addr[ETH_ALEN];
625 int code, reauth_delay, ret;
626 const char *pos;
627 size_t url_len;
628 struct wpabuf *req;
629
630 /* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */
631 if (hwaddr_aton(cmd, addr))
632 return -1;
633
634 pos = os_strchr(cmd, ' ');
635 if (pos == NULL)
636 return -1;
637 pos++;
638 code = atoi(pos);
639
640 pos = os_strchr(pos, ' ');
641 if (pos == NULL)
642 return -1;
643 pos++;
644 reauth_delay = atoi(pos);
645
646 url_len = 0;
647 pos = os_strchr(pos, ' ');
648 if (pos) {
649 pos++;
650 url_len = os_strlen(pos);
651 }
652
653 req = wpabuf_alloc(4 + url_len);
654 if (req == NULL)
655 return -1;
656 wpabuf_put_u8(req, code);
657 wpabuf_put_le16(req, reauth_delay);
658 wpabuf_put_u8(req, url_len);
659 if (pos)
660 wpabuf_put_data(req, pos, url_len);
661
662 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR
663 " to indicate imminent deauthentication (code=%d "
664 "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay);
665 ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req);
666 wpabuf_free(req);
667 return ret;
668 }
669
670 #endif /* CONFIG_HS20 */
671
672
673 #ifdef CONFIG_INTERWORKING
674
hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data * hapd,const char * cmd)675 static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd,
676 const char *cmd)
677 {
678 u8 qos_map_set[16 + 2 * 21], count = 0;
679 const char *pos = cmd;
680 int val, ret;
681
682 for (;;) {
683 if (count == sizeof(qos_map_set)) {
684 wpa_printf(MSG_ERROR, "Too many qos_map_set parameters");
685 return -1;
686 }
687
688 val = atoi(pos);
689 if (val < 0 || val > 255) {
690 wpa_printf(MSG_INFO, "Invalid QoS Map Set");
691 return -1;
692 }
693
694 qos_map_set[count++] = val;
695 pos = os_strchr(pos, ',');
696 if (!pos)
697 break;
698 pos++;
699 }
700
701 if (count < 16 || count & 1) {
702 wpa_printf(MSG_INFO, "Invalid QoS Map Set");
703 return -1;
704 }
705
706 ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count);
707 if (ret) {
708 wpa_printf(MSG_INFO, "Failed to set QoS Map Set");
709 return -1;
710 }
711
712 os_memcpy(hapd->conf->qos_map_set, qos_map_set, count);
713 hapd->conf->qos_map_set_len = count;
714
715 return 0;
716 }
717
718
hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data * hapd,const char * cmd)719 static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd,
720 const char *cmd)
721 {
722 u8 addr[ETH_ALEN];
723 struct sta_info *sta;
724 struct wpabuf *buf;
725 u8 *qos_map_set = hapd->conf->qos_map_set;
726 u8 qos_map_set_len = hapd->conf->qos_map_set_len;
727 int ret;
728
729 if (!qos_map_set_len) {
730 wpa_printf(MSG_INFO, "QoS Map Set is not set");
731 return -1;
732 }
733
734 if (hwaddr_aton(cmd, addr))
735 return -1;
736
737 sta = ap_get_sta(hapd, addr);
738 if (sta == NULL) {
739 wpa_printf(MSG_DEBUG, "Station " MACSTR " not found "
740 "for QoS Map Configuration message",
741 MAC2STR(addr));
742 return -1;
743 }
744
745 if (!sta->qos_map_enabled) {
746 wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate "
747 "support for QoS Map", MAC2STR(addr));
748 return -1;
749 }
750
751 buf = wpabuf_alloc(2 + 2 + qos_map_set_len);
752 if (buf == NULL)
753 return -1;
754
755 wpabuf_put_u8(buf, WLAN_ACTION_QOS);
756 wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG);
757
758 /* QoS Map Set Element */
759 wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET);
760 wpabuf_put_u8(buf, qos_map_set_len);
761 wpabuf_put_data(buf, qos_map_set, qos_map_set_len);
762
763 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
764 wpabuf_head(buf), wpabuf_len(buf));
765 wpabuf_free(buf);
766
767 return ret;
768 }
769
770 #endif /* CONFIG_INTERWORKING */
771
772
773 #ifdef CONFIG_WNM_AP
774
hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data * hapd,const char * cmd)775 static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd,
776 const char *cmd)
777 {
778 u8 addr[ETH_ALEN];
779 int disassoc_timer;
780 struct sta_info *sta;
781
782 if (hwaddr_aton(cmd, addr))
783 return -1;
784 if (cmd[17] != ' ')
785 return -1;
786 disassoc_timer = atoi(cmd + 17);
787
788 sta = ap_get_sta(hapd, addr);
789 if (sta == NULL) {
790 wpa_printf(MSG_DEBUG, "Station " MACSTR
791 " not found for disassociation imminent message",
792 MAC2STR(addr));
793 return -1;
794 }
795
796 return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer);
797 }
798
799
hostapd_ctrl_iface_ess_disassoc(struct hostapd_data * hapd,const char * cmd)800 static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
801 const char *cmd)
802 {
803 u8 addr[ETH_ALEN];
804 const char *url, *timerstr;
805 int disassoc_timer;
806 struct sta_info *sta;
807
808 if (hwaddr_aton(cmd, addr))
809 return -1;
810
811 sta = ap_get_sta(hapd, addr);
812 if (sta == NULL) {
813 wpa_printf(MSG_DEBUG, "Station " MACSTR
814 " not found for ESS disassociation imminent message",
815 MAC2STR(addr));
816 return -1;
817 }
818
819 timerstr = cmd + 17;
820 if (*timerstr != ' ')
821 return -1;
822 timerstr++;
823 disassoc_timer = atoi(timerstr);
824 if (disassoc_timer < 0 || disassoc_timer > 65535)
825 return -1;
826
827 url = os_strchr(timerstr, ' ');
828 if (url == NULL)
829 return -1;
830 url++;
831
832 return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
833 }
834
835
hostapd_ctrl_iface_bss_tm_req(struct hostapd_data * hapd,const char * cmd)836 static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
837 const char *cmd)
838 {
839 u8 addr[ETH_ALEN];
840 const char *pos, *end;
841 int disassoc_timer = 0;
842 struct sta_info *sta;
843 u8 req_mode = 0, valid_int = 0x01, dialog_token = 0x01;
844 u8 bss_term_dur[12];
845 char *url = NULL;
846 int ret;
847 u8 nei_rep[1000];
848 int nei_len;
849 u8 mbo[10];
850 size_t mbo_len = 0;
851
852 if (hwaddr_aton(cmd, addr)) {
853 wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
854 return -1;
855 }
856
857 sta = ap_get_sta(hapd, addr);
858 if (sta == NULL) {
859 wpa_printf(MSG_DEBUG, "Station " MACSTR
860 " not found for BSS TM Request message",
861 MAC2STR(addr));
862 return -1;
863 }
864
865 pos = os_strstr(cmd, " disassoc_timer=");
866 if (pos) {
867 pos += 16;
868 disassoc_timer = atoi(pos);
869 if (disassoc_timer < 0 || disassoc_timer > 65535) {
870 wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
871 return -1;
872 }
873 }
874
875 pos = os_strstr(cmd, " valid_int=");
876 if (pos) {
877 pos += 11;
878 valid_int = atoi(pos);
879 }
880
881 pos = os_strstr(cmd, " dialog_token=");
882 if (pos) {
883 pos += 14;
884 dialog_token = atoi(pos);
885 }
886
887 pos = os_strstr(cmd, " bss_term=");
888 if (pos) {
889 pos += 10;
890 req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
891 /* TODO: TSF configurable/learnable */
892 bss_term_dur[0] = 4; /* Subelement ID */
893 bss_term_dur[1] = 10; /* Length */
894 os_memset(&bss_term_dur[2], 0, 8);
895 end = os_strchr(pos, ',');
896 if (end == NULL) {
897 wpa_printf(MSG_DEBUG, "Invalid bss_term data");
898 return -1;
899 }
900 end++;
901 WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
902 }
903
904 nei_len = ieee802_11_parse_candidate_list(cmd, nei_rep,
905 sizeof(nei_rep));
906 if (nei_len < 0)
907 return -1;
908
909 pos = os_strstr(cmd, " url=");
910 if (pos) {
911 size_t len;
912 pos += 5;
913 end = os_strchr(pos, ' ');
914 if (end)
915 len = end - pos;
916 else
917 len = os_strlen(pos);
918 url = os_malloc(len + 1);
919 if (url == NULL)
920 return -1;
921 os_memcpy(url, pos, len);
922 url[len] = '\0';
923 req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
924 }
925
926 if (os_strstr(cmd, " pref=1"))
927 req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
928 if (os_strstr(cmd, " abridged=1"))
929 req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
930 if (os_strstr(cmd, " disassoc_imminent=1"))
931 req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;
932
933 #ifdef CONFIG_MBO
934 pos = os_strstr(cmd, "mbo=");
935 if (pos) {
936 unsigned int mbo_reason, cell_pref, reassoc_delay;
937 u8 *mbo_pos = mbo;
938
939 ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason,
940 &reassoc_delay, &cell_pref);
941 if (ret != 3) {
942 wpa_printf(MSG_DEBUG,
943 "MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>");
944 ret = -1;
945 goto fail;
946 }
947
948 if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) {
949 wpa_printf(MSG_DEBUG,
950 "Invalid MBO transition reason code %u",
951 mbo_reason);
952 ret = -1;
953 goto fail;
954 }
955
956 /* Valid values for Cellular preference are: 0, 1, 255 */
957 if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) {
958 wpa_printf(MSG_DEBUG,
959 "Invalid MBO cellular capability %u",
960 cell_pref);
961 ret = -1;
962 goto fail;
963 }
964
965 if (reassoc_delay > 65535 ||
966 (reassoc_delay &&
967 !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) {
968 wpa_printf(MSG_DEBUG,
969 "MBO: Assoc retry delay is only valid in disassoc imminent mode");
970 ret = -1;
971 goto fail;
972 }
973
974 *mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON;
975 *mbo_pos++ = 1;
976 *mbo_pos++ = mbo_reason;
977 *mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF;
978 *mbo_pos++ = 1;
979 *mbo_pos++ = cell_pref;
980
981 if (reassoc_delay) {
982 *mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY;
983 *mbo_pos++ = 2;
984 WPA_PUT_LE16(mbo_pos, reassoc_delay);
985 mbo_pos += 2;
986 }
987
988 mbo_len = mbo_pos - mbo;
989 }
990 #endif /* CONFIG_MBO */
991
992 ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
993 valid_int, bss_term_dur, dialog_token, url,
994 nei_len ? nei_rep : NULL, nei_len,
995 mbo_len ? mbo : NULL, mbo_len);
996 #ifdef CONFIG_MBO
997 fail:
998 #endif /* CONFIG_MBO */
999 os_free(url);
1000 return ret;
1001 }
1002
1003
hostapd_ctrl_iface_coloc_intf_req(struct hostapd_data * hapd,const char * cmd)1004 static int hostapd_ctrl_iface_coloc_intf_req(struct hostapd_data *hapd,
1005 const char *cmd)
1006 {
1007 u8 addr[ETH_ALEN];
1008 struct sta_info *sta;
1009 const char *pos;
1010 unsigned int auto_report, timeout;
1011
1012 if (hwaddr_aton(cmd, addr)) {
1013 wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
1014 return -1;
1015 }
1016
1017 sta = ap_get_sta(hapd, addr);
1018 if (!sta) {
1019 wpa_printf(MSG_DEBUG, "Station " MACSTR
1020 " not found for Collocated Interference Request",
1021 MAC2STR(addr));
1022 return -1;
1023 }
1024
1025 pos = cmd + 17;
1026 if (*pos != ' ')
1027 return -1;
1028 pos++;
1029 auto_report = atoi(pos);
1030 pos = os_strchr(pos, ' ');
1031 if (!pos)
1032 return -1;
1033 pos++;
1034 timeout = atoi(pos);
1035
1036 return wnm_send_coloc_intf_req(hapd, sta, auto_report, timeout);
1037 }
1038
1039 #endif /* CONFIG_WNM_AP */
1040
1041
hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data * hapd,char * buf,size_t buflen)1042 static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd,
1043 char *buf, size_t buflen)
1044 {
1045 int ret = 0;
1046 char *pos, *end;
1047
1048 pos = buf;
1049 end = buf + buflen;
1050
1051 WPA_ASSERT(hapd->conf->wpa_key_mgmt);
1052
1053 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
1054 ret = os_snprintf(pos, end - pos, "WPA-PSK ");
1055 if (os_snprintf_error(end - pos, ret))
1056 return pos - buf;
1057 pos += ret;
1058 }
1059 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
1060 ret = os_snprintf(pos, end - pos, "WPA-EAP ");
1061 if (os_snprintf_error(end - pos, ret))
1062 return pos - buf;
1063 pos += ret;
1064 }
1065 #ifdef CONFIG_IEEE80211R_AP
1066 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
1067 ret = os_snprintf(pos, end - pos, "FT-PSK ");
1068 if (os_snprintf_error(end - pos, ret))
1069 return pos - buf;
1070 pos += ret;
1071 }
1072 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
1073 ret = os_snprintf(pos, end - pos, "FT-EAP ");
1074 if (os_snprintf_error(end - pos, ret))
1075 return pos - buf;
1076 pos += ret;
1077 }
1078 #ifdef CONFIG_SHA384
1079 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) {
1080 ret = os_snprintf(pos, end - pos, "FT-EAP-SHA384 ");
1081 if (os_snprintf_error(end - pos, ret))
1082 return pos - buf;
1083 pos += ret;
1084 }
1085 #endif /* CONFIG_SHA384 */
1086 #ifdef CONFIG_SAE
1087 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
1088 ret = os_snprintf(pos, end - pos, "FT-SAE ");
1089 if (os_snprintf_error(end - pos, ret))
1090 return pos - buf;
1091 pos += ret;
1092 }
1093 #endif /* CONFIG_SAE */
1094 #ifdef CONFIG_FILS
1095 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) {
1096 ret = os_snprintf(pos, end - pos, "FT-FILS-SHA256 ");
1097 if (os_snprintf_error(end - pos, ret))
1098 return pos - buf;
1099 pos += ret;
1100 }
1101 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) {
1102 ret = os_snprintf(pos, end - pos, "FT-FILS-SHA384 ");
1103 if (os_snprintf_error(end - pos, ret))
1104 return pos - buf;
1105 pos += ret;
1106 }
1107 #endif /* CONFIG_FILS */
1108 #endif /* CONFIG_IEEE80211R_AP */
1109 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
1110 ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
1111 if (os_snprintf_error(end - pos, ret))
1112 return pos - buf;
1113 pos += ret;
1114 }
1115 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1116 ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
1117 if (os_snprintf_error(end - pos, ret))
1118 return pos - buf;
1119 pos += ret;
1120 }
1121 #ifdef CONFIG_SAE
1122 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
1123 ret = os_snprintf(pos, end - pos, "SAE ");
1124 if (os_snprintf_error(end - pos, ret))
1125 return pos - buf;
1126 pos += ret;
1127 }
1128 #endif /* CONFIG_SAE */
1129 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1130 ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
1131 if (os_snprintf_error(end - pos, ret))
1132 return pos - buf;
1133 pos += ret;
1134 }
1135 if (hapd->conf->wpa_key_mgmt &
1136 WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
1137 ret = os_snprintf(pos, end - pos,
1138 "WPA-EAP-SUITE-B-192 ");
1139 if (os_snprintf_error(end - pos, ret))
1140 return pos - buf;
1141 pos += ret;
1142 }
1143 #ifdef CONFIG_FILS
1144 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA256) {
1145 ret = os_snprintf(pos, end - pos, "FILS-SHA256 ");
1146 if (os_snprintf_error(end - pos, ret))
1147 return pos - buf;
1148 pos += ret;
1149 }
1150 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA384) {
1151 ret = os_snprintf(pos, end - pos, "FILS-SHA384 ");
1152 if (os_snprintf_error(end - pos, ret))
1153 return pos - buf;
1154 pos += ret;
1155 }
1156 #endif /* CONFIG_FILS */
1157
1158 #ifdef CONFIG_OWE
1159 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) {
1160 ret = os_snprintf(pos, end - pos, "OWE ");
1161 if (os_snprintf_error(end - pos, ret))
1162 return pos - buf;
1163 pos += ret;
1164 }
1165 #endif /* CONFIG_OWE */
1166
1167 #ifdef CONFIG_DPP
1168 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_DPP) {
1169 ret = os_snprintf(pos, end - pos, "DPP ");
1170 if (os_snprintf_error(end - pos, ret))
1171 return pos - buf;
1172 pos += ret;
1173 }
1174 #endif /* CONFIG_DPP */
1175
1176 if (pos > buf && *(pos - 1) == ' ') {
1177 *(pos - 1) = '\0';
1178 pos--;
1179 }
1180
1181 return pos - buf;
1182 }
1183
1184
hostapd_ctrl_iface_get_config(struct hostapd_data * hapd,char * buf,size_t buflen)1185 static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
1186 char *buf, size_t buflen)
1187 {
1188 int ret;
1189 char *pos, *end;
1190
1191 pos = buf;
1192 end = buf + buflen;
1193
1194 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n"
1195 "ssid=%s\n",
1196 MAC2STR(hapd->own_addr),
1197 wpa_ssid_txt(hapd->conf->ssid.ssid,
1198 hapd->conf->ssid.ssid_len));
1199 if (os_snprintf_error(end - pos, ret))
1200 return pos - buf;
1201 pos += ret;
1202
1203 #ifdef CONFIG_WPS
1204 ret = os_snprintf(pos, end - pos, "wps_state=%s\n",
1205 hapd->conf->wps_state == 0 ? "disabled" :
1206 (hapd->conf->wps_state == 1 ? "not configured" :
1207 "configured"));
1208 if (os_snprintf_error(end - pos, ret))
1209 return pos - buf;
1210 pos += ret;
1211
1212 if (hapd->conf->wps_state && hapd->conf->wpa &&
1213 hapd->conf->ssid.wpa_passphrase) {
1214 ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
1215 hapd->conf->ssid.wpa_passphrase);
1216 if (os_snprintf_error(end - pos, ret))
1217 return pos - buf;
1218 pos += ret;
1219 }
1220
1221 if (hapd->conf->wps_state && hapd->conf->wpa &&
1222 hapd->conf->ssid.wpa_psk &&
1223 hapd->conf->ssid.wpa_psk->group) {
1224 char hex[PMK_LEN * 2 + 1];
1225 wpa_snprintf_hex(hex, sizeof(hex),
1226 hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
1227 ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
1228 if (os_snprintf_error(end - pos, ret))
1229 return pos - buf;
1230 pos += ret;
1231 }
1232
1233 if (hapd->conf->multi_ap) {
1234 struct hostapd_ssid *ssid = &hapd->conf->multi_ap_backhaul_ssid;
1235
1236 ret = os_snprintf(pos, end - pos, "multi_ap=%d\n",
1237 hapd->conf->multi_ap);
1238 if (os_snprintf_error(end - pos, ret))
1239 return pos - buf;
1240 pos += ret;
1241
1242 if (ssid->ssid_len) {
1243 ret = os_snprintf(pos, end - pos,
1244 "multi_ap_backhaul_ssid=%s\n",
1245 wpa_ssid_txt(ssid->ssid,
1246 ssid->ssid_len));
1247 if (os_snprintf_error(end - pos, ret))
1248 return pos - buf;
1249 pos += ret;
1250 }
1251
1252 if (hapd->conf->wps_state && hapd->conf->wpa &&
1253 ssid->wpa_passphrase) {
1254 ret = os_snprintf(pos, end - pos,
1255 "multi_ap_backhaul_wpa_passphrase=%s\n",
1256 ssid->wpa_passphrase);
1257 if (os_snprintf_error(end - pos, ret))
1258 return pos - buf;
1259 pos += ret;
1260 }
1261
1262 if (hapd->conf->wps_state && hapd->conf->wpa &&
1263 ssid->wpa_psk &&
1264 ssid->wpa_psk->group) {
1265 char hex[PMK_LEN * 2 + 1];
1266
1267 wpa_snprintf_hex(hex, sizeof(hex), ssid->wpa_psk->psk,
1268 PMK_LEN);
1269 ret = os_snprintf(pos, end - pos,
1270 "multi_ap_backhaul_wpa_psk=%s\n",
1271 hex);
1272 forced_memzero(hex, sizeof(hex));
1273 if (os_snprintf_error(end - pos, ret))
1274 return pos - buf;
1275 pos += ret;
1276 }
1277 }
1278 #endif /* CONFIG_WPS */
1279
1280 if (hapd->conf->wpa) {
1281 ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa);
1282 if (os_snprintf_error(end - pos, ret))
1283 return pos - buf;
1284 pos += ret;
1285 }
1286
1287 if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
1288 ret = os_snprintf(pos, end - pos, "key_mgmt=");
1289 if (os_snprintf_error(end - pos, ret))
1290 return pos - buf;
1291 pos += ret;
1292
1293 pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos);
1294
1295 ret = os_snprintf(pos, end - pos, "\n");
1296 if (os_snprintf_error(end - pos, ret))
1297 return pos - buf;
1298 pos += ret;
1299 }
1300
1301 if (hapd->conf->wpa) {
1302 ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
1303 wpa_cipher_txt(hapd->conf->wpa_group));
1304 if (os_snprintf_error(end - pos, ret))
1305 return pos - buf;
1306 pos += ret;
1307 }
1308
1309 if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
1310 ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
1311 if (os_snprintf_error(end - pos, ret))
1312 return pos - buf;
1313 pos += ret;
1314
1315 ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise,
1316 " ");
1317 if (ret < 0)
1318 return pos - buf;
1319 pos += ret;
1320
1321 ret = os_snprintf(pos, end - pos, "\n");
1322 if (os_snprintf_error(end - pos, ret))
1323 return pos - buf;
1324 pos += ret;
1325 }
1326
1327 if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
1328 ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
1329 if (os_snprintf_error(end - pos, ret))
1330 return pos - buf;
1331 pos += ret;
1332
1333 ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise,
1334 " ");
1335 if (ret < 0)
1336 return pos - buf;
1337 pos += ret;
1338
1339 ret = os_snprintf(pos, end - pos, "\n");
1340 if (os_snprintf_error(end - pos, ret))
1341 return pos - buf;
1342 pos += ret;
1343 }
1344
1345 if (hapd->conf->wpa && hapd->conf->wpa_deny_ptk0_rekey) {
1346 ret = os_snprintf(pos, end - pos, "wpa_deny_ptk0_rekey=%d\n",
1347 hapd->conf->wpa_deny_ptk0_rekey);
1348 if (os_snprintf_error(end - pos, ret))
1349 return pos - buf;
1350 pos += ret;
1351 }
1352
1353 if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->extended_key_id) {
1354 ret = os_snprintf(pos, end - pos, "extended_key_id=%d\n",
1355 hapd->conf->extended_key_id);
1356 if (os_snprintf_error(end - pos, ret))
1357 return pos - buf;
1358 pos += ret;
1359 }
1360
1361 return pos - buf;
1362 }
1363
1364
hostapd_disassoc_accept_mac(struct hostapd_data * hapd)1365 static void hostapd_disassoc_accept_mac(struct hostapd_data *hapd)
1366 {
1367 struct sta_info *sta;
1368 struct vlan_description vlan_id;
1369
1370 if (hapd->conf->macaddr_acl != DENY_UNLESS_ACCEPTED)
1371 return;
1372
1373 for (sta = hapd->sta_list; sta; sta = sta->next) {
1374 if (!hostapd_maclist_found(hapd->conf->accept_mac,
1375 hapd->conf->num_accept_mac,
1376 sta->addr, &vlan_id) ||
1377 (vlan_id.notempty &&
1378 vlan_compare(&vlan_id, sta->vlan_desc)))
1379 ap_sta_disconnect(hapd, sta, sta->addr,
1380 WLAN_REASON_UNSPECIFIED);
1381 }
1382 }
1383
1384
hostapd_disassoc_deny_mac(struct hostapd_data * hapd)1385 static void hostapd_disassoc_deny_mac(struct hostapd_data *hapd)
1386 {
1387 struct sta_info *sta;
1388 struct vlan_description vlan_id;
1389
1390 for (sta = hapd->sta_list; sta; sta = sta->next) {
1391 if (hostapd_maclist_found(hapd->conf->deny_mac,
1392 hapd->conf->num_deny_mac, sta->addr,
1393 &vlan_id) &&
1394 (!vlan_id.notempty ||
1395 !vlan_compare(&vlan_id, sta->vlan_desc)))
1396 ap_sta_disconnect(hapd, sta, sta->addr,
1397 WLAN_REASON_UNSPECIFIED);
1398 }
1399 }
1400
1401
hostapd_ctrl_iface_set_band(struct hostapd_data * hapd,const char * bands)1402 static int hostapd_ctrl_iface_set_band(struct hostapd_data *hapd,
1403 const char *bands)
1404 {
1405 union wpa_event_data event;
1406 u32 setband_mask = WPA_SETBAND_AUTO;
1407
1408 /*
1409 * For example:
1410 * SET setband 2G,6G
1411 * SET setband 5G
1412 * SET setband AUTO
1413 */
1414 if (!os_strstr(bands, "AUTO")) {
1415 if (os_strstr(bands, "5G"))
1416 setband_mask |= WPA_SETBAND_5G;
1417 if (os_strstr(bands, "6G"))
1418 setband_mask |= WPA_SETBAND_6G;
1419 if (os_strstr(bands, "2G"))
1420 setband_mask |= WPA_SETBAND_2G;
1421 if (setband_mask == WPA_SETBAND_AUTO)
1422 return -1;
1423 }
1424
1425 if (hostapd_drv_set_band(hapd, setband_mask) == 0) {
1426 os_memset(&event, 0, sizeof(event));
1427 event.channel_list_changed.initiator = REGDOM_SET_BY_USER;
1428 event.channel_list_changed.type = REGDOM_TYPE_UNKNOWN;
1429 wpa_supplicant_event(hapd, EVENT_CHANNEL_LIST_CHANGED, &event);
1430 }
1431
1432 return 0;
1433 }
1434
1435
hostapd_ctrl_iface_set(struct hostapd_data * hapd,char * cmd)1436 static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
1437 {
1438 char *value;
1439 int ret = 0;
1440
1441 value = os_strchr(cmd, ' ');
1442 if (value == NULL)
1443 return -1;
1444 *value++ = '\0';
1445
1446 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
1447 if (0) {
1448 #ifdef CONFIG_WPS_TESTING
1449 } else if (os_strcasecmp(cmd, "wps_version_number") == 0) {
1450 long int val;
1451 val = strtol(value, NULL, 0);
1452 if (val < 0 || val > 0xff) {
1453 ret = -1;
1454 wpa_printf(MSG_DEBUG, "WPS: Invalid "
1455 "wps_version_number %ld", val);
1456 } else {
1457 wps_version_number = val;
1458 wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS "
1459 "version %u.%u",
1460 (wps_version_number & 0xf0) >> 4,
1461 wps_version_number & 0x0f);
1462 hostapd_wps_update_ie(hapd);
1463 }
1464 } else if (os_strcasecmp(cmd, "wps_testing_stub_cred") == 0) {
1465 wps_testing_stub_cred = atoi(value);
1466 wpa_printf(MSG_DEBUG, "WPS: Testing - stub_cred=%d",
1467 wps_testing_stub_cred);
1468 } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) {
1469 wps_corrupt_pkhash = atoi(value);
1470 wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d",
1471 wps_corrupt_pkhash);
1472 #endif /* CONFIG_WPS_TESTING */
1473 #ifdef CONFIG_TESTING_OPTIONS
1474 } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
1475 hapd->ext_mgmt_frame_handling = atoi(value);
1476 } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
1477 hapd->ext_eapol_frame_io = atoi(value);
1478 } else if (os_strcasecmp(cmd, "force_backlog_bytes") == 0) {
1479 hapd->force_backlog_bytes = atoi(value);
1480 #ifdef CONFIG_DPP
1481 } else if (os_strcasecmp(cmd, "dpp_config_obj_override") == 0) {
1482 os_free(hapd->dpp_config_obj_override);
1483 hapd->dpp_config_obj_override = os_strdup(value);
1484 } else if (os_strcasecmp(cmd, "dpp_discovery_override") == 0) {
1485 os_free(hapd->dpp_discovery_override);
1486 hapd->dpp_discovery_override = os_strdup(value);
1487 } else if (os_strcasecmp(cmd, "dpp_groups_override") == 0) {
1488 os_free(hapd->dpp_groups_override);
1489 hapd->dpp_groups_override = os_strdup(value);
1490 } else if (os_strcasecmp(cmd,
1491 "dpp_ignore_netaccesskey_mismatch") == 0) {
1492 hapd->dpp_ignore_netaccesskey_mismatch = atoi(value);
1493 } else if (os_strcasecmp(cmd, "dpp_test") == 0) {
1494 dpp_test = atoi(value);
1495 } else if (os_strcasecmp(cmd, "dpp_version_override") == 0) {
1496 dpp_version_override = atoi(value);
1497 #endif /* CONFIG_DPP */
1498 #endif /* CONFIG_TESTING_OPTIONS */
1499 #ifdef CONFIG_MBO
1500 } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) {
1501 int val;
1502
1503 if (!hapd->conf->mbo_enabled)
1504 return -1;
1505
1506 val = atoi(value);
1507 if (val < 0 || val > MBO_ASSOC_DISALLOW_REASON_LOW_RSSI)
1508 return -1;
1509
1510 hapd->mbo_assoc_disallow = val;
1511 ieee802_11_update_beacons(hapd->iface);
1512
1513 /*
1514 * TODO: Need to configure drivers that do AP MLME offload with
1515 * disallowing station logic.
1516 */
1517 #endif /* CONFIG_MBO */
1518 #ifdef CONFIG_DPP
1519 } else if (os_strcasecmp(cmd, "dpp_configurator_params") == 0) {
1520 os_free(hapd->dpp_configurator_params);
1521 hapd->dpp_configurator_params = os_strdup(value);
1522 } else if (os_strcasecmp(cmd, "dpp_init_max_tries") == 0) {
1523 hapd->dpp_init_max_tries = atoi(value);
1524 } else if (os_strcasecmp(cmd, "dpp_init_retry_time") == 0) {
1525 hapd->dpp_init_retry_time = atoi(value);
1526 } else if (os_strcasecmp(cmd, "dpp_resp_wait_time") == 0) {
1527 hapd->dpp_resp_wait_time = atoi(value);
1528 } else if (os_strcasecmp(cmd, "dpp_resp_max_tries") == 0) {
1529 hapd->dpp_resp_max_tries = atoi(value);
1530 } else if (os_strcasecmp(cmd, "dpp_resp_retry_time") == 0) {
1531 hapd->dpp_resp_retry_time = atoi(value);
1532 #endif /* CONFIG_DPP */
1533 } else if (os_strcasecmp(cmd, "setband") == 0) {
1534 ret = hostapd_ctrl_iface_set_band(hapd, value);
1535 } else {
1536 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
1537 if (ret)
1538 return ret;
1539
1540 if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
1541 hostapd_disassoc_deny_mac(hapd);
1542 } else if (os_strcasecmp(cmd, "accept_mac_file") == 0) {
1543 hostapd_disassoc_accept_mac(hapd);
1544 } else if (os_strncmp(cmd, "wme_ac_", 7) == 0 ||
1545 os_strncmp(cmd, "wmm_ac_", 7) == 0) {
1546 hapd->parameter_set_count++;
1547 if (ieee802_11_update_beacons(hapd->iface))
1548 wpa_printf(MSG_DEBUG,
1549 "Failed to update beacons with WMM parameters");
1550 } else if (os_strcmp(cmd, "wpa_passphrase") == 0 ||
1551 os_strcmp(cmd, "sae_password") == 0 ||
1552 os_strcmp(cmd, "sae_pwe") == 0) {
1553 if (hapd->started)
1554 hostapd_setup_sae_pt(hapd->conf);
1555 } else if (os_strcasecmp(cmd, "transition_disable") == 0) {
1556 wpa_auth_set_transition_disable(hapd->wpa_auth,
1557 hapd->conf->transition_disable);
1558 }
1559
1560 #ifdef CONFIG_TESTING_OPTIONS
1561 if (os_strcmp(cmd, "ft_rsnxe_used") == 0)
1562 wpa_auth_set_ft_rsnxe_used(hapd->wpa_auth,
1563 hapd->conf->ft_rsnxe_used);
1564 else if (os_strcmp(cmd, "oci_freq_override_eapol_m3") == 0)
1565 wpa_auth_set_ocv_override_freq(
1566 hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_EAPOL_M3,
1567 atoi(value));
1568 else if (os_strcmp(cmd, "oci_freq_override_eapol_g1") == 0)
1569 wpa_auth_set_ocv_override_freq(
1570 hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_EAPOL_G1,
1571 atoi(value));
1572 else if (os_strcmp(cmd, "oci_freq_override_ft_assoc") == 0)
1573 wpa_auth_set_ocv_override_freq(
1574 hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_FT_ASSOC,
1575 atoi(value));
1576 else if (os_strcmp(cmd, "oci_freq_override_fils_assoc") == 0)
1577 wpa_auth_set_ocv_override_freq(
1578 hapd->wpa_auth,
1579 WPA_AUTH_OCV_OVERRIDE_FILS_ASSOC, atoi(value));
1580 #endif /* CONFIG_TESTING_OPTIONS */
1581 }
1582
1583 return ret;
1584 }
1585
1586
hostapd_ctrl_iface_get(struct hostapd_data * hapd,char * cmd,char * buf,size_t buflen)1587 static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
1588 char *buf, size_t buflen)
1589 {
1590 int res;
1591
1592 wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);
1593
1594 if (os_strcmp(cmd, "version") == 0) {
1595 res = os_snprintf(buf, buflen, "%s", VERSION_STR);
1596 if (os_snprintf_error(buflen, res))
1597 return -1;
1598 return res;
1599 } else if (os_strcmp(cmd, "tls_library") == 0) {
1600 res = tls_get_library_version(buf, buflen);
1601 if (os_snprintf_error(buflen, res))
1602 return -1;
1603 return res;
1604 }
1605
1606 return -1;
1607 }
1608
1609
hostapd_ctrl_iface_enable(struct hostapd_iface * iface)1610 static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
1611 {
1612 if (hostapd_enable_iface(iface) < 0) {
1613 wpa_printf(MSG_ERROR, "Enabling of interface failed");
1614 return -1;
1615 }
1616 return 0;
1617 }
1618
1619
hostapd_ctrl_iface_reload(struct hostapd_iface * iface)1620 static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
1621 {
1622 if (hostapd_reload_iface(iface) < 0) {
1623 wpa_printf(MSG_ERROR, "Reloading of interface failed");
1624 return -1;
1625 }
1626 return 0;
1627 }
1628
1629
hostapd_ctrl_iface_disable(struct hostapd_iface * iface)1630 static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
1631 {
1632 if (hostapd_disable_iface(iface) < 0) {
1633 wpa_printf(MSG_ERROR, "Disabling of interface failed");
1634 return -1;
1635 }
1636 return 0;
1637 }
1638
1639
1640 static int
hostapd_ctrl_iface_kick_mismatch_psk_sta_iter(struct hostapd_data * hapd,struct sta_info * sta,void * ctx)1641 hostapd_ctrl_iface_kick_mismatch_psk_sta_iter(struct hostapd_data *hapd,
1642 struct sta_info *sta, void *ctx)
1643 {
1644 struct hostapd_wpa_psk *psk;
1645 const u8 *pmk;
1646 int pmk_len;
1647 int pmk_match;
1648 int sta_match;
1649 int bss_match;
1650 int reason;
1651
1652 pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len);
1653
1654 for (psk = hapd->conf->ssid.wpa_psk; pmk && psk; psk = psk->next) {
1655 pmk_match = PMK_LEN == pmk_len &&
1656 os_memcmp(psk->psk, pmk, pmk_len) == 0;
1657 sta_match = psk->group == 0 &&
1658 os_memcmp(sta->addr, psk->addr, ETH_ALEN) == 0;
1659 bss_match = psk->group == 1;
1660
1661 if (pmk_match && (sta_match || bss_match))
1662 return 0;
1663 }
1664
1665 wpa_printf(MSG_INFO, "STA " MACSTR
1666 " PSK/passphrase no longer valid - disconnect",
1667 MAC2STR(sta->addr));
1668 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
1669 hostapd_drv_sta_deauth(hapd, sta->addr, reason);
1670 ap_sta_deauthenticate(hapd, sta, reason);
1671
1672 return 0;
1673 }
1674
1675
hostapd_ctrl_iface_reload_wpa_psk(struct hostapd_data * hapd)1676 static int hostapd_ctrl_iface_reload_wpa_psk(struct hostapd_data *hapd)
1677 {
1678 struct hostapd_bss_config *conf = hapd->conf;
1679 int err;
1680
1681 hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);
1682
1683 err = hostapd_setup_wpa_psk(conf);
1684 if (err < 0) {
1685 wpa_printf(MSG_ERROR, "Reloading WPA-PSK passwords failed: %d",
1686 err);
1687 return -1;
1688 }
1689
1690 ap_for_each_sta(hapd, hostapd_ctrl_iface_kick_mismatch_psk_sta_iter,
1691 NULL);
1692
1693 return 0;
1694 }
1695
1696
1697 #ifdef CONFIG_TESTING_OPTIONS
1698
hostapd_ctrl_iface_radar(struct hostapd_data * hapd,char * cmd)1699 static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
1700 {
1701 union wpa_event_data data;
1702 char *pos, *param;
1703 enum wpa_event_type event;
1704
1705 wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);
1706
1707 os_memset(&data, 0, sizeof(data));
1708
1709 param = os_strchr(cmd, ' ');
1710 if (param == NULL)
1711 return -1;
1712 *param++ = '\0';
1713
1714 if (os_strcmp(cmd, "DETECTED") == 0)
1715 event = EVENT_DFS_RADAR_DETECTED;
1716 else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
1717 event = EVENT_DFS_CAC_FINISHED;
1718 else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
1719 event = EVENT_DFS_CAC_ABORTED;
1720 else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
1721 event = EVENT_DFS_NOP_FINISHED;
1722 else {
1723 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
1724 cmd);
1725 return -1;
1726 }
1727
1728 pos = os_strstr(param, "freq=");
1729 if (pos)
1730 data.dfs_event.freq = atoi(pos + 5);
1731
1732 pos = os_strstr(param, "ht_enabled=1");
1733 if (pos)
1734 data.dfs_event.ht_enabled = 1;
1735
1736 pos = os_strstr(param, "chan_offset=");
1737 if (pos)
1738 data.dfs_event.chan_offset = atoi(pos + 12);
1739
1740 pos = os_strstr(param, "chan_width=");
1741 if (pos)
1742 data.dfs_event.chan_width = atoi(pos + 11);
1743
1744 pos = os_strstr(param, "cf1=");
1745 if (pos)
1746 data.dfs_event.cf1 = atoi(pos + 4);
1747
1748 pos = os_strstr(param, "cf2=");
1749 if (pos)
1750 data.dfs_event.cf2 = atoi(pos + 4);
1751
1752 wpa_supplicant_event(hapd, event, &data);
1753
1754 return 0;
1755 }
1756
1757
hostapd_ctrl_iface_mgmt_tx(struct hostapd_data * hapd,char * cmd)1758 static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
1759 {
1760 size_t len;
1761 u8 *buf;
1762 int res;
1763
1764 wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);
1765
1766 len = os_strlen(cmd);
1767 if (len & 1)
1768 return -1;
1769 len /= 2;
1770
1771 buf = os_malloc(len);
1772 if (buf == NULL)
1773 return -1;
1774
1775 if (hexstr2bin(cmd, buf, len) < 0) {
1776 os_free(buf);
1777 return -1;
1778 }
1779
1780 res = hostapd_drv_send_mlme(hapd, buf, len, 0, NULL, 0, 0);
1781 os_free(buf);
1782 return res;
1783 }
1784
1785
hostapd_ctrl_iface_mgmt_tx_status_process(struct hostapd_data * hapd,char * cmd)1786 static int hostapd_ctrl_iface_mgmt_tx_status_process(struct hostapd_data *hapd,
1787 char *cmd)
1788 {
1789 char *pos, *param;
1790 size_t len;
1791 u8 *buf;
1792 int stype = 0, ok = 0;
1793 union wpa_event_data event;
1794
1795 if (!hapd->ext_mgmt_frame_handling)
1796 return -1;
1797
1798 /* stype=<val> ok=<0/1> buf=<frame hexdump> */
1799
1800 wpa_printf(MSG_DEBUG, "External MGMT TX status process: %s", cmd);
1801
1802 pos = cmd;
1803 param = os_strstr(pos, "stype=");
1804 if (param) {
1805 param += 6;
1806 stype = atoi(param);
1807 }
1808
1809 param = os_strstr(pos, " ok=");
1810 if (param) {
1811 param += 4;
1812 ok = atoi(param);
1813 }
1814
1815 param = os_strstr(pos, " buf=");
1816 if (!param)
1817 return -1;
1818 param += 5;
1819
1820 len = os_strlen(param);
1821 if (len & 1)
1822 return -1;
1823 len /= 2;
1824
1825 buf = os_malloc(len);
1826 if (!buf || hexstr2bin(param, buf, len) < 0) {
1827 os_free(buf);
1828 return -1;
1829 }
1830
1831 os_memset(&event, 0, sizeof(event));
1832 event.tx_status.type = WLAN_FC_TYPE_MGMT;
1833 event.tx_status.data = buf;
1834 event.tx_status.data_len = len;
1835 event.tx_status.stype = stype;
1836 event.tx_status.ack = ok;
1837 hapd->ext_mgmt_frame_handling = 0;
1838 wpa_supplicant_event(hapd, EVENT_TX_STATUS, &event);
1839 hapd->ext_mgmt_frame_handling = 1;
1840
1841 os_free(buf);
1842
1843 return 0;
1844 }
1845
1846
hostapd_ctrl_iface_mgmt_rx_process(struct hostapd_data * hapd,char * cmd)1847 static int hostapd_ctrl_iface_mgmt_rx_process(struct hostapd_data *hapd,
1848 char *cmd)
1849 {
1850 char *pos, *param;
1851 size_t len;
1852 u8 *buf;
1853 int freq = 0, datarate = 0, ssi_signal = 0;
1854 union wpa_event_data event;
1855
1856 if (!hapd->ext_mgmt_frame_handling)
1857 return -1;
1858
1859 /* freq=<MHz> datarate=<val> ssi_signal=<val> frame=<frame hexdump> */
1860
1861 wpa_printf(MSG_DEBUG, "External MGMT RX process: %s", cmd);
1862
1863 pos = cmd;
1864 param = os_strstr(pos, "freq=");
1865 if (param) {
1866 param += 5;
1867 freq = atoi(param);
1868 }
1869
1870 param = os_strstr(pos, " datarate=");
1871 if (param) {
1872 param += 10;
1873 datarate = atoi(param);
1874 }
1875
1876 param = os_strstr(pos, " ssi_signal=");
1877 if (param) {
1878 param += 12;
1879 ssi_signal = atoi(param);
1880 }
1881
1882 param = os_strstr(pos, " frame=");
1883 if (param == NULL)
1884 return -1;
1885 param += 7;
1886
1887 len = os_strlen(param);
1888 if (len & 1)
1889 return -1;
1890 len /= 2;
1891
1892 buf = os_malloc(len);
1893 if (buf == NULL)
1894 return -1;
1895
1896 if (hexstr2bin(param, buf, len) < 0) {
1897 os_free(buf);
1898 return -1;
1899 }
1900
1901 os_memset(&event, 0, sizeof(event));
1902 event.rx_mgmt.freq = freq;
1903 event.rx_mgmt.frame = buf;
1904 event.rx_mgmt.frame_len = len;
1905 event.rx_mgmt.ssi_signal = ssi_signal;
1906 event.rx_mgmt.datarate = datarate;
1907 hapd->ext_mgmt_frame_handling = 0;
1908 wpa_supplicant_event(hapd, EVENT_RX_MGMT, &event);
1909 hapd->ext_mgmt_frame_handling = 1;
1910
1911 os_free(buf);
1912
1913 return 0;
1914 }
1915
1916
hostapd_ctrl_iface_eapol_rx(struct hostapd_data * hapd,char * cmd)1917 static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
1918 {
1919 char *pos;
1920 u8 src[ETH_ALEN], *buf;
1921 int used;
1922 size_t len;
1923
1924 wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
1925
1926 pos = cmd;
1927 used = hwaddr_aton2(pos, src);
1928 if (used < 0)
1929 return -1;
1930 pos += used;
1931 while (*pos == ' ')
1932 pos++;
1933
1934 len = os_strlen(pos);
1935 if (len & 1)
1936 return -1;
1937 len /= 2;
1938
1939 buf = os_malloc(len);
1940 if (buf == NULL)
1941 return -1;
1942
1943 if (hexstr2bin(pos, buf, len) < 0) {
1944 os_free(buf);
1945 return -1;
1946 }
1947
1948 ieee802_1x_receive(hapd, src, buf, len);
1949 os_free(buf);
1950
1951 return 0;
1952 }
1953
1954
hostapd_ctrl_iface_eapol_tx(struct hostapd_data * hapd,char * cmd)1955 static int hostapd_ctrl_iface_eapol_tx(struct hostapd_data *hapd, char *cmd)
1956 {
1957 char *pos, *pos2;
1958 u8 dst[ETH_ALEN], *buf;
1959 int used, ret;
1960 size_t len;
1961 unsigned int prev;
1962 int encrypt = 0;
1963
1964 wpa_printf(MSG_DEBUG, "External EAPOL TX: %s", cmd);
1965
1966 pos = cmd;
1967 used = hwaddr_aton2(pos, dst);
1968 if (used < 0)
1969 return -1;
1970 pos += used;
1971 while (*pos == ' ')
1972 pos++;
1973
1974 pos2 = os_strchr(pos, ' ');
1975 if (pos2) {
1976 len = pos2 - pos;
1977 encrypt = os_strstr(pos2, "encrypt=1") != NULL;
1978 } else {
1979 len = os_strlen(pos);
1980 }
1981 if (len & 1)
1982 return -1;
1983 len /= 2;
1984
1985 buf = os_malloc(len);
1986 if (!buf || hexstr2bin(pos, buf, len) < 0) {
1987 os_free(buf);
1988 return -1;
1989 }
1990
1991 prev = hapd->ext_eapol_frame_io;
1992 hapd->ext_eapol_frame_io = 0;
1993 ret = hostapd_wpa_auth_send_eapol(hapd, dst, buf, len, encrypt);
1994 hapd->ext_eapol_frame_io = prev;
1995 os_free(buf);
1996
1997 return ret;
1998 }
1999
2000
ipv4_hdr_checksum(const void * buf,size_t len)2001 static u16 ipv4_hdr_checksum(const void *buf, size_t len)
2002 {
2003 size_t i;
2004 u32 sum = 0;
2005 const u16 *pos = buf;
2006
2007 for (i = 0; i < len / 2; i++)
2008 sum += *pos++;
2009
2010 while (sum >> 16)
2011 sum = (sum & 0xffff) + (sum >> 16);
2012
2013 return sum ^ 0xffff;
2014 }
2015
2016
2017 #define HWSIM_PACKETLEN 1500
2018 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
2019
hostapd_data_test_rx(void * ctx,const u8 * src_addr,const u8 * buf,size_t len)2020 static void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
2021 size_t len)
2022 {
2023 struct hostapd_data *hapd = ctx;
2024 const struct ether_header *eth;
2025 struct ip ip;
2026 const u8 *pos;
2027 unsigned int i;
2028 char extra[30];
2029
2030 if (len < sizeof(*eth) + sizeof(ip) || len > HWSIM_PACKETLEN) {
2031 wpa_printf(MSG_DEBUG,
2032 "test data: RX - ignore unexpected length %d",
2033 (int) len);
2034 return;
2035 }
2036
2037 eth = (const struct ether_header *) buf;
2038 os_memcpy(&ip, eth + 1, sizeof(ip));
2039 pos = &buf[sizeof(*eth) + sizeof(ip)];
2040
2041 if (ip.ip_hl != 5 || ip.ip_v != 4 ||
2042 ntohs(ip.ip_len) > HWSIM_IP_LEN) {
2043 wpa_printf(MSG_DEBUG,
2044 "test data: RX - ignore unexpected IP header");
2045 return;
2046 }
2047
2048 for (i = 0; i < ntohs(ip.ip_len) - sizeof(ip); i++) {
2049 if (*pos != (u8) i) {
2050 wpa_printf(MSG_DEBUG,
2051 "test data: RX - ignore mismatching payload");
2052 return;
2053 }
2054 pos++;
2055 }
2056
2057 extra[0] = '\0';
2058 if (ntohs(ip.ip_len) != HWSIM_IP_LEN)
2059 os_snprintf(extra, sizeof(extra), " len=%d", ntohs(ip.ip_len));
2060 wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR "%s",
2061 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost), extra);
2062 }
2063
2064
hostapd_ctrl_iface_data_test_config(struct hostapd_data * hapd,char * cmd)2065 static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
2066 char *cmd)
2067 {
2068 int enabled = atoi(cmd);
2069 char *pos;
2070 const char *ifname;
2071
2072 if (!enabled) {
2073 if (hapd->l2_test) {
2074 l2_packet_deinit(hapd->l2_test);
2075 hapd->l2_test = NULL;
2076 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
2077 "test data: Disabled");
2078 }
2079 return 0;
2080 }
2081
2082 if (hapd->l2_test)
2083 return 0;
2084
2085 pos = os_strstr(cmd, " ifname=");
2086 if (pos)
2087 ifname = pos + 8;
2088 else
2089 ifname = hapd->conf->iface;
2090
2091 hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
2092 ETHERTYPE_IP, hostapd_data_test_rx,
2093 hapd, 1);
2094 if (hapd->l2_test == NULL)
2095 return -1;
2096
2097 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
2098
2099 return 0;
2100 }
2101
2102
hostapd_ctrl_iface_data_test_tx(struct hostapd_data * hapd,char * cmd)2103 static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
2104 {
2105 u8 dst[ETH_ALEN], src[ETH_ALEN];
2106 char *pos, *pos2;
2107 int used;
2108 long int val;
2109 u8 tos;
2110 u8 buf[2 + HWSIM_PACKETLEN];
2111 struct ether_header *eth;
2112 struct ip *ip;
2113 u8 *dpos;
2114 unsigned int i;
2115 size_t send_len = HWSIM_IP_LEN;
2116
2117 if (hapd->l2_test == NULL)
2118 return -1;
2119
2120 /* format: <dst> <src> <tos> [len=<length>] */
2121
2122 pos = cmd;
2123 used = hwaddr_aton2(pos, dst);
2124 if (used < 0)
2125 return -1;
2126 pos += used;
2127 while (*pos == ' ')
2128 pos++;
2129 used = hwaddr_aton2(pos, src);
2130 if (used < 0)
2131 return -1;
2132 pos += used;
2133
2134 val = strtol(pos, &pos2, 0);
2135 if (val < 0 || val > 0xff)
2136 return -1;
2137 tos = val;
2138
2139 pos = os_strstr(pos2, " len=");
2140 if (pos) {
2141 i = atoi(pos + 5);
2142 if (i < sizeof(*ip) || i > HWSIM_IP_LEN)
2143 return -1;
2144 send_len = i;
2145 }
2146
2147 eth = (struct ether_header *) &buf[2];
2148 os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
2149 os_memcpy(eth->ether_shost, src, ETH_ALEN);
2150 eth->ether_type = htons(ETHERTYPE_IP);
2151 ip = (struct ip *) (eth + 1);
2152 os_memset(ip, 0, sizeof(*ip));
2153 ip->ip_hl = 5;
2154 ip->ip_v = 4;
2155 ip->ip_ttl = 64;
2156 ip->ip_tos = tos;
2157 ip->ip_len = htons(send_len);
2158 ip->ip_p = 1;
2159 ip->ip_src.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1);
2160 ip->ip_dst.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2);
2161 ip->ip_sum = ipv4_hdr_checksum(ip, sizeof(*ip));
2162 dpos = (u8 *) (ip + 1);
2163 for (i = 0; i < send_len - sizeof(*ip); i++)
2164 *dpos++ = i;
2165
2166 if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2],
2167 sizeof(struct ether_header) + send_len) < 0)
2168 return -1;
2169
2170 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
2171 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
2172
2173 return 0;
2174 }
2175
2176
hostapd_ctrl_iface_data_test_frame(struct hostapd_data * hapd,char * cmd)2177 static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
2178 char *cmd)
2179 {
2180 u8 *buf;
2181 struct ether_header *eth;
2182 struct l2_packet_data *l2 = NULL;
2183 size_t len;
2184 u16 ethertype;
2185 int res = -1;
2186 const char *ifname = hapd->conf->iface;
2187
2188 if (os_strncmp(cmd, "ifname=", 7) == 0) {
2189 cmd += 7;
2190 ifname = cmd;
2191 cmd = os_strchr(cmd, ' ');
2192 if (cmd == NULL)
2193 return -1;
2194 *cmd++ = '\0';
2195 }
2196
2197 len = os_strlen(cmd);
2198 if (len & 1 || len < ETH_HLEN * 2)
2199 return -1;
2200 len /= 2;
2201
2202 buf = os_malloc(len);
2203 if (buf == NULL)
2204 return -1;
2205
2206 if (hexstr2bin(cmd, buf, len) < 0)
2207 goto done;
2208
2209 eth = (struct ether_header *) buf;
2210 ethertype = ntohs(eth->ether_type);
2211
2212 l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
2213 hostapd_data_test_rx, hapd, 1);
2214 if (l2 == NULL)
2215 goto done;
2216
2217 res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
2218 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
2219 done:
2220 if (l2)
2221 l2_packet_deinit(l2);
2222 os_free(buf);
2223
2224 return res < 0 ? -1 : 0;
2225 }
2226
2227
hostapd_ctrl_test_alloc_fail(struct hostapd_data * hapd,char * cmd)2228 static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd)
2229 {
2230 #ifdef WPA_TRACE_BFD
2231 char *pos;
2232
2233 wpa_trace_fail_after = atoi(cmd);
2234 pos = os_strchr(cmd, ':');
2235 if (pos) {
2236 pos++;
2237 os_strlcpy(wpa_trace_fail_func, pos,
2238 sizeof(wpa_trace_fail_func));
2239 } else {
2240 wpa_trace_fail_after = 0;
2241 }
2242
2243 return 0;
2244 #else /* WPA_TRACE_BFD */
2245 return -1;
2246 #endif /* WPA_TRACE_BFD */
2247 }
2248
2249
hostapd_ctrl_get_alloc_fail(struct hostapd_data * hapd,char * buf,size_t buflen)2250 static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd,
2251 char *buf, size_t buflen)
2252 {
2253 #ifdef WPA_TRACE_BFD
2254 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after,
2255 wpa_trace_fail_func);
2256 #else /* WPA_TRACE_BFD */
2257 return -1;
2258 #endif /* WPA_TRACE_BFD */
2259 }
2260
2261
hostapd_ctrl_test_fail(struct hostapd_data * hapd,char * cmd)2262 static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd)
2263 {
2264 #ifdef WPA_TRACE_BFD
2265 char *pos;
2266
2267 wpa_trace_test_fail_after = atoi(cmd);
2268 pos = os_strchr(cmd, ':');
2269 if (pos) {
2270 pos++;
2271 os_strlcpy(wpa_trace_test_fail_func, pos,
2272 sizeof(wpa_trace_test_fail_func));
2273 } else {
2274 wpa_trace_test_fail_after = 0;
2275 }
2276
2277 return 0;
2278 #else /* WPA_TRACE_BFD */
2279 return -1;
2280 #endif /* WPA_TRACE_BFD */
2281 }
2282
2283
hostapd_ctrl_get_fail(struct hostapd_data * hapd,char * buf,size_t buflen)2284 static int hostapd_ctrl_get_fail(struct hostapd_data *hapd,
2285 char *buf, size_t buflen)
2286 {
2287 #ifdef WPA_TRACE_BFD
2288 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
2289 wpa_trace_test_fail_func);
2290 #else /* WPA_TRACE_BFD */
2291 return -1;
2292 #endif /* WPA_TRACE_BFD */
2293 }
2294
2295
hostapd_ctrl_reset_pn(struct hostapd_data * hapd,const char * cmd)2296 static int hostapd_ctrl_reset_pn(struct hostapd_data *hapd, const char *cmd)
2297 {
2298 struct sta_info *sta;
2299 u8 addr[ETH_ALEN];
2300 u8 zero[WPA_TK_MAX_LEN];
2301
2302 os_memset(zero, 0, sizeof(zero));
2303
2304 if (hwaddr_aton(cmd, addr))
2305 return -1;
2306
2307 if (is_broadcast_ether_addr(addr) && os_strstr(cmd, " BIGTK")) {
2308 if (hapd->last_bigtk_alg == WPA_ALG_NONE)
2309 return -1;
2310
2311 wpa_printf(MSG_INFO, "TESTING: Reset BIPN for BIGTK");
2312
2313 /* First, use a zero key to avoid any possible duplicate key
2314 * avoidance in the driver. */
2315 if (hostapd_drv_set_key(hapd->conf->iface, hapd,
2316 hapd->last_bigtk_alg,
2317 broadcast_ether_addr,
2318 hapd->last_bigtk_key_idx, 0, 1, NULL, 0,
2319 zero, hapd->last_bigtk_len,
2320 KEY_FLAG_GROUP_TX_DEFAULT) < 0)
2321 return -1;
2322
2323 /* Set the previously configured key to reset its TSC */
2324 return hostapd_drv_set_key(hapd->conf->iface, hapd,
2325 hapd->last_bigtk_alg,
2326 broadcast_ether_addr,
2327 hapd->last_bigtk_key_idx, 0, 1, NULL,
2328 0, hapd->last_bigtk,
2329 hapd->last_bigtk_len,
2330 KEY_FLAG_GROUP_TX_DEFAULT);
2331 }
2332
2333 if (is_broadcast_ether_addr(addr) && os_strstr(cmd, "IGTK")) {
2334 if (hapd->last_igtk_alg == WPA_ALG_NONE)
2335 return -1;
2336
2337 wpa_printf(MSG_INFO, "TESTING: Reset IPN for IGTK");
2338
2339 /* First, use a zero key to avoid any possible duplicate key
2340 * avoidance in the driver. */
2341 if (hostapd_drv_set_key(hapd->conf->iface, hapd,
2342 hapd->last_igtk_alg,
2343 broadcast_ether_addr,
2344 hapd->last_igtk_key_idx, 0, 1, NULL, 0,
2345 zero, hapd->last_igtk_len,
2346 KEY_FLAG_GROUP_TX_DEFAULT) < 0)
2347 return -1;
2348
2349 /* Set the previously configured key to reset its TSC */
2350 return hostapd_drv_set_key(hapd->conf->iface, hapd,
2351 hapd->last_igtk_alg,
2352 broadcast_ether_addr,
2353 hapd->last_igtk_key_idx, 0, 1, NULL,
2354 0, hapd->last_igtk,
2355 hapd->last_igtk_len,
2356 KEY_FLAG_GROUP_TX_DEFAULT);
2357 }
2358
2359 if (is_broadcast_ether_addr(addr)) {
2360 if (hapd->last_gtk_alg == WPA_ALG_NONE)
2361 return -1;
2362
2363 wpa_printf(MSG_INFO, "TESTING: Reset PN for GTK");
2364
2365 /* First, use a zero key to avoid any possible duplicate key
2366 * avoidance in the driver. */
2367 if (hostapd_drv_set_key(hapd->conf->iface, hapd,
2368 hapd->last_gtk_alg,
2369 broadcast_ether_addr,
2370 hapd->last_gtk_key_idx, 0, 1, NULL, 0,
2371 zero, hapd->last_gtk_len,
2372 KEY_FLAG_GROUP_TX_DEFAULT) < 0)
2373 return -1;
2374
2375 /* Set the previously configured key to reset its TSC */
2376 return hostapd_drv_set_key(hapd->conf->iface, hapd,
2377 hapd->last_gtk_alg,
2378 broadcast_ether_addr,
2379 hapd->last_gtk_key_idx, 0, 1, NULL,
2380 0, hapd->last_gtk,
2381 hapd->last_gtk_len,
2382 KEY_FLAG_GROUP_TX_DEFAULT);
2383 }
2384
2385 sta = ap_get_sta(hapd, addr);
2386 if (!sta)
2387 return -1;
2388
2389 if (sta->last_tk_alg == WPA_ALG_NONE)
2390 return -1;
2391
2392 wpa_printf(MSG_INFO, "TESTING: Reset PN for " MACSTR,
2393 MAC2STR(sta->addr));
2394
2395 /* First, use a zero key to avoid any possible duplicate key avoidance
2396 * in the driver. */
2397 if (hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg,
2398 sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0,
2399 zero, sta->last_tk_len,
2400 KEY_FLAG_PAIRWISE_RX_TX) < 0)
2401 return -1;
2402
2403 /* Set the previously configured key to reset its TSC/RSC */
2404 return hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg,
2405 sta->addr, sta->last_tk_key_idx, 0, 1, NULL,
2406 0, sta->last_tk, sta->last_tk_len,
2407 KEY_FLAG_PAIRWISE_RX_TX);
2408 }
2409
2410
hostapd_ctrl_set_key(struct hostapd_data * hapd,const char * cmd)2411 static int hostapd_ctrl_set_key(struct hostapd_data *hapd, const char *cmd)
2412 {
2413 u8 addr[ETH_ALEN];
2414 const char *pos = cmd;
2415 enum wpa_alg alg;
2416 enum key_flag key_flag;
2417 int idx, set_tx;
2418 u8 seq[6], key[WPA_TK_MAX_LEN];
2419 size_t key_len;
2420
2421 /* parameters: alg addr idx set_tx seq key key_flag */
2422
2423 alg = atoi(pos);
2424 pos = os_strchr(pos, ' ');
2425 if (!pos)
2426 return -1;
2427 pos++;
2428 if (hwaddr_aton(pos, addr))
2429 return -1;
2430 pos += 17;
2431 if (*pos != ' ')
2432 return -1;
2433 pos++;
2434 idx = atoi(pos);
2435 pos = os_strchr(pos, ' ');
2436 if (!pos)
2437 return -1;
2438 pos++;
2439 set_tx = atoi(pos);
2440 pos = os_strchr(pos, ' ');
2441 if (!pos)
2442 return -1;
2443 pos++;
2444 if (hexstr2bin(pos, seq, sizeof(seq)) < 0)
2445 return -1;
2446 pos += 2 * 6;
2447 if (*pos != ' ')
2448 return -1;
2449 pos++;
2450 if (!os_strchr(pos, ' '))
2451 return -1;
2452 key_len = (os_strchr(pos, ' ') - pos) / 2;
2453 if (hexstr2bin(pos, key, key_len) < 0)
2454 return -1;
2455 pos += 2 * key_len;
2456 if (*pos != ' ')
2457 return -1;
2458
2459 pos++;
2460 key_flag = atoi(pos);
2461 pos = os_strchr(pos, ' ');
2462 if (pos)
2463 return -1;
2464
2465 wpa_printf(MSG_INFO, "TESTING: Set key");
2466 return hostapd_drv_set_key(hapd->conf->iface, hapd, alg, addr, idx, 0,
2467 set_tx, seq, 6, key, key_len, key_flag);
2468 }
2469
2470
restore_tk(void * ctx1,void * ctx2)2471 static void restore_tk(void *ctx1, void *ctx2)
2472 {
2473 struct hostapd_data *hapd = ctx1;
2474 struct sta_info *sta = ctx2;
2475
2476 wpa_printf(MSG_INFO, "TESTING: Restore TK for " MACSTR,
2477 MAC2STR(sta->addr));
2478 /* This does not really restore the TSC properly, so this will result
2479 * in replay protection issues for now since there is no clean way of
2480 * preventing encryption of a single EAPOL frame. */
2481 hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg,
2482 sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0,
2483 sta->last_tk, sta->last_tk_len,
2484 KEY_FLAG_PAIRWISE_RX_TX);
2485 }
2486
2487
hostapd_ctrl_resend_m1(struct hostapd_data * hapd,const char * cmd)2488 static int hostapd_ctrl_resend_m1(struct hostapd_data *hapd, const char *cmd)
2489 {
2490 struct sta_info *sta;
2491 u8 addr[ETH_ALEN];
2492 int plain = os_strstr(cmd, "plaintext") != NULL;
2493
2494 if (hwaddr_aton(cmd, addr))
2495 return -1;
2496
2497 sta = ap_get_sta(hapd, addr);
2498 if (!sta || !sta->wpa_sm)
2499 return -1;
2500
2501 if (plain && sta->last_tk_alg == WPA_ALG_NONE)
2502 plain = 0; /* no need for special processing */
2503 if (plain) {
2504 wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR,
2505 MAC2STR(sta->addr));
2506 hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE,
2507 sta->addr, sta->last_tk_key_idx, 0, 0, NULL,
2508 0, NULL, 0, KEY_FLAG_PAIRWISE);
2509 }
2510
2511 wpa_printf(MSG_INFO, "TESTING: Send M1 to " MACSTR, MAC2STR(sta->addr));
2512 return wpa_auth_resend_m1(sta->wpa_sm,
2513 os_strstr(cmd, "change-anonce") != NULL,
2514 plain ? restore_tk : NULL, hapd, sta);
2515 }
2516
2517
hostapd_ctrl_resend_m3(struct hostapd_data * hapd,const char * cmd)2518 static int hostapd_ctrl_resend_m3(struct hostapd_data *hapd, const char *cmd)
2519 {
2520 struct sta_info *sta;
2521 u8 addr[ETH_ALEN];
2522 int plain = os_strstr(cmd, "plaintext") != NULL;
2523
2524 if (hwaddr_aton(cmd, addr))
2525 return -1;
2526
2527 sta = ap_get_sta(hapd, addr);
2528 if (!sta || !sta->wpa_sm)
2529 return -1;
2530
2531 if (plain && sta->last_tk_alg == WPA_ALG_NONE)
2532 plain = 0; /* no need for special processing */
2533 if (plain) {
2534 wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR,
2535 MAC2STR(sta->addr));
2536 hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE,
2537 sta->addr, sta->last_tk_key_idx, 0, 0, NULL,
2538 0, NULL, 0, KEY_FLAG_PAIRWISE);
2539 }
2540
2541 wpa_printf(MSG_INFO, "TESTING: Send M3 to " MACSTR, MAC2STR(sta->addr));
2542 return wpa_auth_resend_m3(sta->wpa_sm,
2543 plain ? restore_tk : NULL, hapd, sta);
2544 }
2545
2546
hostapd_ctrl_resend_group_m1(struct hostapd_data * hapd,const char * cmd)2547 static int hostapd_ctrl_resend_group_m1(struct hostapd_data *hapd,
2548 const char *cmd)
2549 {
2550 struct sta_info *sta;
2551 u8 addr[ETH_ALEN];
2552 int plain = os_strstr(cmd, "plaintext") != NULL;
2553
2554 if (hwaddr_aton(cmd, addr))
2555 return -1;
2556
2557 sta = ap_get_sta(hapd, addr);
2558 if (!sta || !sta->wpa_sm)
2559 return -1;
2560
2561 if (plain && sta->last_tk_alg == WPA_ALG_NONE)
2562 plain = 0; /* no need for special processing */
2563 if (plain) {
2564 wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR,
2565 MAC2STR(sta->addr));
2566 hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE,
2567 sta->addr, sta->last_tk_key_idx, 0, 0, NULL,
2568 0, NULL, 0, KEY_FLAG_PAIRWISE);
2569 }
2570
2571 wpa_printf(MSG_INFO,
2572 "TESTING: Send group M1 for the same GTK and zero RSC to "
2573 MACSTR, MAC2STR(sta->addr));
2574 return wpa_auth_resend_group_m1(sta->wpa_sm,
2575 plain ? restore_tk : NULL, hapd, sta);
2576 }
2577
2578
hostapd_ctrl_rekey_ptk(struct hostapd_data * hapd,const char * cmd)2579 static int hostapd_ctrl_rekey_ptk(struct hostapd_data *hapd, const char *cmd)
2580 {
2581 struct sta_info *sta;
2582 u8 addr[ETH_ALEN];
2583
2584 if (hwaddr_aton(cmd, addr))
2585 return -1;
2586
2587 sta = ap_get_sta(hapd, addr);
2588 if (!sta || !sta->wpa_sm)
2589 return -1;
2590
2591 return wpa_auth_rekey_ptk(hapd->wpa_auth, sta->wpa_sm);
2592 }
2593
2594
hostapd_ctrl_get_pmksa_pmk(struct hostapd_data * hapd,const u8 * addr,char * buf,size_t buflen)2595 static int hostapd_ctrl_get_pmksa_pmk(struct hostapd_data *hapd, const u8 *addr,
2596 char *buf, size_t buflen)
2597 {
2598 struct rsn_pmksa_cache_entry *pmksa;
2599
2600 pmksa = wpa_auth_pmksa_get(hapd->wpa_auth, addr, NULL);
2601 if (!pmksa)
2602 return -1;
2603
2604 return wpa_snprintf_hex(buf, buflen, pmksa->pmk, pmksa->pmk_len);
2605 }
2606
2607
hostapd_ctrl_get_pmk(struct hostapd_data * hapd,const char * cmd,char * buf,size_t buflen)2608 static int hostapd_ctrl_get_pmk(struct hostapd_data *hapd, const char *cmd,
2609 char *buf, size_t buflen)
2610 {
2611 struct sta_info *sta;
2612 u8 addr[ETH_ALEN];
2613 const u8 *pmk;
2614 int pmk_len;
2615
2616 if (hwaddr_aton(cmd, addr))
2617 return -1;
2618
2619 sta = ap_get_sta(hapd, addr);
2620 if (!sta || !sta->wpa_sm) {
2621 wpa_printf(MSG_DEBUG, "No STA WPA state machine for " MACSTR,
2622 MAC2STR(addr));
2623 return hostapd_ctrl_get_pmksa_pmk(hapd, addr, buf, buflen);
2624 }
2625 pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len);
2626 if (!pmk || !pmk_len) {
2627 wpa_printf(MSG_DEBUG, "No PMK stored for " MACSTR,
2628 MAC2STR(addr));
2629 return hostapd_ctrl_get_pmksa_pmk(hapd, addr, buf, buflen);
2630 }
2631
2632 return wpa_snprintf_hex(buf, buflen, pmk, pmk_len);
2633 }
2634
2635
hostapd_ctrl_register_frame(struct hostapd_data * hapd,const char * cmd)2636 static int hostapd_ctrl_register_frame(struct hostapd_data *hapd,
2637 const char *cmd)
2638 {
2639 u16 type;
2640 char *pos, *end;
2641 u8 match[10];
2642 size_t match_len;
2643 bool multicast = false;
2644
2645 type = strtol(cmd, &pos, 16);
2646 if (*pos != ' ')
2647 return -1;
2648 pos++;
2649 end = os_strchr(pos, ' ');
2650 if (end) {
2651 match_len = end - pos;
2652 multicast = os_strstr(end, "multicast") != NULL;
2653 } else {
2654 match_len = os_strlen(pos) / 2;
2655 }
2656 if (hexstr2bin(pos, match, match_len))
2657 return -1;
2658
2659 return hostapd_drv_register_frame(hapd, type, match, match_len,
2660 multicast);
2661 }
2662
2663 #endif /* CONFIG_TESTING_OPTIONS */
2664
2665
2666 #ifdef NEED_AP_MLME
hostapd_ctrl_check_freq_params(struct hostapd_freq_params * params)2667 static int hostapd_ctrl_check_freq_params(struct hostapd_freq_params *params)
2668 {
2669 switch (params->bandwidth) {
2670 case 0:
2671 /* bandwidth not specified: use 20 MHz by default */
2672 /* fall-through */
2673 case 20:
2674 if (params->center_freq1 &&
2675 params->center_freq1 != params->freq)
2676 return -1;
2677
2678 if (params->center_freq2 || params->sec_channel_offset)
2679 return -1;
2680 break;
2681 case 40:
2682 if (params->center_freq2 || !params->sec_channel_offset)
2683 return -1;
2684
2685 if (!params->center_freq1)
2686 break;
2687 switch (params->sec_channel_offset) {
2688 case 1:
2689 if (params->freq + 10 != params->center_freq1)
2690 return -1;
2691 break;
2692 case -1:
2693 if (params->freq - 10 != params->center_freq1)
2694 return -1;
2695 break;
2696 default:
2697 return -1;
2698 }
2699 break;
2700 case 80:
2701 if (!params->center_freq1 || !params->sec_channel_offset)
2702 return 1;
2703
2704 switch (params->sec_channel_offset) {
2705 case 1:
2706 if (params->freq - 10 != params->center_freq1 &&
2707 params->freq + 30 != params->center_freq1)
2708 return 1;
2709 break;
2710 case -1:
2711 if (params->freq + 10 != params->center_freq1 &&
2712 params->freq - 30 != params->center_freq1)
2713 return -1;
2714 break;
2715 default:
2716 return -1;
2717 }
2718
2719 /* Adjacent and overlapped are not allowed for 80+80 */
2720 if (params->center_freq2 &&
2721 params->center_freq1 - params->center_freq2 <= 80 &&
2722 params->center_freq2 - params->center_freq1 <= 80)
2723 return 1;
2724 break;
2725 case 160:
2726 if (!params->center_freq1 || params->center_freq2 ||
2727 !params->sec_channel_offset)
2728 return -1;
2729
2730 switch (params->sec_channel_offset) {
2731 case 1:
2732 if (params->freq + 70 != params->center_freq1 &&
2733 params->freq + 30 != params->center_freq1 &&
2734 params->freq - 10 != params->center_freq1 &&
2735 params->freq - 50 != params->center_freq1)
2736 return -1;
2737 break;
2738 case -1:
2739 if (params->freq + 50 != params->center_freq1 &&
2740 params->freq + 10 != params->center_freq1 &&
2741 params->freq - 30 != params->center_freq1 &&
2742 params->freq - 70 != params->center_freq1)
2743 return -1;
2744 break;
2745 default:
2746 return -1;
2747 }
2748 break;
2749 default:
2750 return -1;
2751 }
2752
2753 return 0;
2754 }
2755 #endif /* NEED_AP_MLME */
2756
2757
hostapd_ctrl_iface_chan_switch(struct hostapd_iface * iface,char * pos)2758 static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
2759 char *pos)
2760 {
2761 #ifdef NEED_AP_MLME
2762 struct csa_settings settings;
2763 int ret;
2764 int dfs_range = 0;
2765 unsigned int i;
2766 int bandwidth;
2767 u8 chan;
2768
2769 ret = hostapd_parse_csa_settings(pos, &settings);
2770 if (ret)
2771 return ret;
2772
2773 ret = hostapd_ctrl_check_freq_params(&settings.freq_params);
2774 if (ret) {
2775 wpa_printf(MSG_INFO,
2776 "chanswitch: invalid frequency settings provided");
2777 return ret;
2778 }
2779
2780 switch (settings.freq_params.bandwidth) {
2781 case 40:
2782 bandwidth = CHAN_WIDTH_40;
2783 break;
2784 case 80:
2785 if (settings.freq_params.center_freq2)
2786 bandwidth = CHAN_WIDTH_80P80;
2787 else
2788 bandwidth = CHAN_WIDTH_80;
2789 break;
2790 case 160:
2791 bandwidth = CHAN_WIDTH_160;
2792 break;
2793 default:
2794 bandwidth = CHAN_WIDTH_20;
2795 break;
2796 }
2797
2798 if (settings.freq_params.center_freq1)
2799 dfs_range += hostapd_is_dfs_overlap(
2800 iface, bandwidth, settings.freq_params.center_freq1);
2801 else
2802 dfs_range += hostapd_is_dfs_overlap(
2803 iface, bandwidth, settings.freq_params.freq);
2804
2805 if (settings.freq_params.center_freq2)
2806 dfs_range += hostapd_is_dfs_overlap(
2807 iface, bandwidth, settings.freq_params.center_freq2);
2808
2809 if (dfs_range) {
2810 ret = ieee80211_freq_to_chan(settings.freq_params.freq, &chan);
2811 if (ret == NUM_HOSTAPD_MODES) {
2812 wpa_printf(MSG_ERROR,
2813 "Failed to get channel for (freq=%d, sec_channel_offset=%d, bw=%d)",
2814 settings.freq_params.freq,
2815 settings.freq_params.sec_channel_offset,
2816 settings.freq_params.bandwidth);
2817 return -1;
2818 }
2819
2820 settings.freq_params.channel = chan;
2821
2822 wpa_printf(MSG_DEBUG,
2823 "DFS/CAC to (channel=%u, freq=%d, sec_channel_offset=%d, bw=%d, center_freq1=%d)",
2824 settings.freq_params.channel,
2825 settings.freq_params.freq,
2826 settings.freq_params.sec_channel_offset,
2827 settings.freq_params.bandwidth,
2828 settings.freq_params.center_freq1);
2829
2830 /* Perform CAC and switch channel */
2831 hostapd_switch_channel_fallback(iface, &settings.freq_params);
2832 return 0;
2833 }
2834
2835 for (i = 0; i < iface->num_bss; i++) {
2836
2837 /* Save CHAN_SWITCH VHT and HE config */
2838 hostapd_chan_switch_config(iface->bss[i],
2839 &settings.freq_params);
2840
2841 ret = hostapd_switch_channel(iface->bss[i], &settings);
2842 if (ret) {
2843 /* FIX: What do we do if CSA fails in the middle of
2844 * submitting multi-BSS CSA requests? */
2845 return ret;
2846 }
2847 }
2848
2849 return 0;
2850 #else /* NEED_AP_MLME */
2851 return -1;
2852 #endif /* NEED_AP_MLME */
2853 }
2854
2855
hostapd_ctrl_iface_mib(struct hostapd_data * hapd,char * reply,int reply_size,const char * param)2856 static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
2857 int reply_size, const char *param)
2858 {
2859 #ifdef RADIUS_SERVER
2860 if (os_strcmp(param, "radius_server") == 0) {
2861 return radius_server_get_mib(hapd->radius_srv, reply,
2862 reply_size);
2863 }
2864 #endif /* RADIUS_SERVER */
2865 return -1;
2866 }
2867
2868
hostapd_ctrl_iface_vendor(struct hostapd_data * hapd,char * cmd,char * buf,size_t buflen)2869 static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
2870 char *buf, size_t buflen)
2871 {
2872 int ret;
2873 char *pos, *temp = NULL;
2874 u8 *data = NULL;
2875 unsigned int vendor_id, subcmd;
2876 enum nested_attr nested_attr_flag = NESTED_ATTR_UNSPECIFIED;
2877 struct wpabuf *reply;
2878 size_t data_len = 0;
2879
2880 /**
2881 * cmd: <vendor id> <subcommand id> [<hex formatted data>]
2882 * [nested=<0|1>]
2883 */
2884 vendor_id = strtoul(cmd, &pos, 16);
2885 if (!isblank((unsigned char) *pos))
2886 return -EINVAL;
2887
2888 subcmd = strtoul(pos, &pos, 10);
2889
2890 if (*pos != '\0') {
2891 if (!isblank((unsigned char) *pos++))
2892 return -EINVAL;
2893
2894 temp = os_strchr(pos, ' ');
2895 data_len = temp ? (size_t) (temp - pos) : os_strlen(pos);
2896 }
2897
2898 if (data_len) {
2899 data_len /= 2;
2900 data = os_malloc(data_len);
2901 if (!data)
2902 return -ENOBUFS;
2903
2904 if (hexstr2bin(pos, data, data_len)) {
2905 wpa_printf(MSG_DEBUG,
2906 "Vendor command: wrong parameter format");
2907 os_free(data);
2908 return -EINVAL;
2909 }
2910 }
2911
2912 pos = os_strstr(cmd, "nested=");
2913 if (pos)
2914 nested_attr_flag = atoi(pos + 7) ? NESTED_ATTR_USED :
2915 NESTED_ATTR_NOT_USED;
2916
2917 reply = wpabuf_alloc((buflen - 1) / 2);
2918 if (!reply) {
2919 os_free(data);
2920 return -ENOBUFS;
2921 }
2922
2923 ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
2924 nested_attr_flag, reply);
2925
2926 if (ret == 0)
2927 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
2928 wpabuf_len(reply));
2929
2930 wpabuf_free(reply);
2931 os_free(data);
2932
2933 return ret;
2934 }
2935
2936
hostapd_ctrl_iface_eapol_reauth(struct hostapd_data * hapd,const char * cmd)2937 static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd,
2938 const char *cmd)
2939 {
2940 u8 addr[ETH_ALEN];
2941 struct sta_info *sta;
2942
2943 if (hwaddr_aton(cmd, addr))
2944 return -1;
2945
2946 sta = ap_get_sta(hapd, addr);
2947 if (!sta || !sta->eapol_sm)
2948 return -1;
2949
2950 eapol_auth_reauthenticate(sta->eapol_sm);
2951 return 0;
2952 }
2953
2954
hostapd_ctrl_iface_eapol_set(struct hostapd_data * hapd,char * cmd)2955 static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd)
2956 {
2957 u8 addr[ETH_ALEN];
2958 struct sta_info *sta;
2959 char *pos = cmd, *param;
2960
2961 if (hwaddr_aton(pos, addr) || pos[17] != ' ')
2962 return -1;
2963 pos += 18;
2964 param = pos;
2965 pos = os_strchr(pos, ' ');
2966 if (!pos)
2967 return -1;
2968 *pos++ = '\0';
2969
2970 sta = ap_get_sta(hapd, addr);
2971 if (!sta || !sta->eapol_sm)
2972 return -1;
2973
2974 return eapol_auth_set_conf(sta->eapol_sm, param, pos);
2975 }
2976
2977
hostapd_ctrl_iface_log_level(struct hostapd_data * hapd,char * cmd,char * buf,size_t buflen)2978 static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd,
2979 char *buf, size_t buflen)
2980 {
2981 char *pos, *end, *stamp;
2982 int ret;
2983
2984 /* cmd: "LOG_LEVEL [<level>]" */
2985 if (*cmd == '\0') {
2986 pos = buf;
2987 end = buf + buflen;
2988 ret = os_snprintf(pos, end - pos, "Current level: %s\n"
2989 "Timestamp: %d\n",
2990 debug_level_str(wpa_debug_level),
2991 wpa_debug_timestamp);
2992 if (os_snprintf_error(end - pos, ret))
2993 ret = 0;
2994
2995 return ret;
2996 }
2997
2998 while (*cmd == ' ')
2999 cmd++;
3000
3001 stamp = os_strchr(cmd, ' ');
3002 if (stamp) {
3003 *stamp++ = '\0';
3004 while (*stamp == ' ') {
3005 stamp++;
3006 }
3007 }
3008
3009 if (os_strlen(cmd)) {
3010 int level = str_to_debug_level(cmd);
3011 if (level < 0)
3012 return -1;
3013 wpa_debug_level = level;
3014 }
3015
3016 if (stamp && os_strlen(stamp))
3017 wpa_debug_timestamp = atoi(stamp);
3018
3019 os_memcpy(buf, "OK\n", 3);
3020 return 3;
3021 }
3022
3023
3024 #ifdef NEED_AP_MLME
hostapd_ctrl_iface_track_sta_list(struct hostapd_data * hapd,char * buf,size_t buflen)3025 static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd,
3026 char *buf, size_t buflen)
3027 {
3028 struct hostapd_iface *iface = hapd->iface;
3029 char *pos, *end;
3030 struct hostapd_sta_info *info;
3031 struct os_reltime now;
3032
3033 if (!iface->num_sta_seen)
3034 return 0;
3035
3036 sta_track_expire(iface, 0);
3037
3038 pos = buf;
3039 end = buf + buflen;
3040
3041 os_get_reltime(&now);
3042 dl_list_for_each_reverse(info, &iface->sta_seen,
3043 struct hostapd_sta_info, list) {
3044 struct os_reltime age;
3045 int ret;
3046
3047 os_reltime_sub(&now, &info->last_seen, &age);
3048 ret = os_snprintf(pos, end - pos, MACSTR " %u %d\n",
3049 MAC2STR(info->addr), (unsigned int) age.sec,
3050 info->ssi_signal);
3051 if (os_snprintf_error(end - pos, ret))
3052 break;
3053 pos += ret;
3054 }
3055
3056 return pos - buf;
3057 }
3058 #endif /* NEED_AP_MLME */
3059
3060
hostapd_ctrl_iface_req_lci(struct hostapd_data * hapd,const char * cmd)3061 static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd,
3062 const char *cmd)
3063 {
3064 u8 addr[ETH_ALEN];
3065
3066 if (hwaddr_aton(cmd, addr)) {
3067 wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address");
3068 return -1;
3069 }
3070
3071 return hostapd_send_lci_req(hapd, addr);
3072 }
3073
3074
hostapd_ctrl_iface_req_range(struct hostapd_data * hapd,char * cmd)3075 static int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd)
3076 {
3077 u8 addr[ETH_ALEN];
3078 char *token, *context = NULL;
3079 int random_interval, min_ap;
3080 u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS];
3081 unsigned int n_responders;
3082
3083 token = str_token(cmd, " ", &context);
3084 if (!token || hwaddr_aton(token, addr)) {
3085 wpa_printf(MSG_INFO,
3086 "CTRL: REQ_RANGE - Bad destination address");
3087 return -1;
3088 }
3089
3090 token = str_token(cmd, " ", &context);
3091 if (!token)
3092 return -1;
3093
3094 random_interval = atoi(token);
3095 if (random_interval < 0 || random_interval > 0xffff)
3096 return -1;
3097
3098 token = str_token(cmd, " ", &context);
3099 if (!token)
3100 return -1;
3101
3102 min_ap = atoi(token);
3103 if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP)
3104 return -1;
3105
3106 n_responders = 0;
3107 while ((token = str_token(cmd, " ", &context))) {
3108 if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) {
3109 wpa_printf(MSG_INFO,
3110 "CTRL: REQ_RANGE: Too many responders");
3111 return -1;
3112 }
3113
3114 if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) {
3115 wpa_printf(MSG_INFO,
3116 "CTRL: REQ_RANGE: Bad responder address");
3117 return -1;
3118 }
3119
3120 n_responders++;
3121 }
3122
3123 if (!n_responders) {
3124 wpa_printf(MSG_INFO,
3125 "CTRL: REQ_RANGE - No FTM responder address");
3126 return -1;
3127 }
3128
3129 return hostapd_send_range_req(hapd, addr, random_interval, min_ap,
3130 responders, n_responders);
3131 }
3132
3133
hostapd_ctrl_iface_req_beacon(struct hostapd_data * hapd,const char * cmd,char * reply,size_t reply_size)3134 static int hostapd_ctrl_iface_req_beacon(struct hostapd_data *hapd,
3135 const char *cmd, char *reply,
3136 size_t reply_size)
3137 {
3138 u8 addr[ETH_ALEN];
3139 const char *pos;
3140 struct wpabuf *req;
3141 int ret;
3142 u8 req_mode = 0;
3143
3144 if (hwaddr_aton(cmd, addr))
3145 return -1;
3146 pos = os_strchr(cmd, ' ');
3147 if (!pos)
3148 return -1;
3149 pos++;
3150 if (os_strncmp(pos, "req_mode=", 9) == 0) {
3151 int val = hex2byte(pos + 9);
3152
3153 if (val < 0)
3154 return -1;
3155 req_mode = val;
3156 pos += 11;
3157 pos = os_strchr(pos, ' ');
3158 if (!pos)
3159 return -1;
3160 pos++;
3161 }
3162 req = wpabuf_parse_bin(pos);
3163 if (!req)
3164 return -1;
3165
3166 ret = hostapd_send_beacon_req(hapd, addr, req_mode, req);
3167 wpabuf_free(req);
3168 if (ret >= 0)
3169 ret = os_snprintf(reply, reply_size, "%d", ret);
3170 return ret;
3171 }
3172
3173
hostapd_ctrl_iface_show_neighbor(struct hostapd_data * hapd,char * buf,size_t buflen)3174 static int hostapd_ctrl_iface_show_neighbor(struct hostapd_data *hapd,
3175 char *buf, size_t buflen)
3176 {
3177 if (!(hapd->conf->radio_measurements[0] &
3178 WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
3179 wpa_printf(MSG_ERROR,
3180 "CTRL: SHOW_NEIGHBOR: Neighbor report is not enabled");
3181 return -1;
3182 }
3183
3184 return hostapd_neighbor_show(hapd, buf, buflen);
3185 }
3186
3187
hostapd_ctrl_iface_set_neighbor(struct hostapd_data * hapd,char * buf)3188 static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf)
3189 {
3190 struct wpa_ssid_value ssid;
3191 u8 bssid[ETH_ALEN];
3192 struct wpabuf *nr, *lci = NULL, *civic = NULL;
3193 int stationary = 0;
3194 int bss_parameters = 0;
3195 char *tmp;
3196 int ret = -1;
3197
3198 if (!(hapd->conf->radio_measurements[0] &
3199 WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
3200 wpa_printf(MSG_ERROR,
3201 "CTRL: SET_NEIGHBOR: Neighbor report is not enabled");
3202 return -1;
3203 }
3204
3205 if (hwaddr_aton(buf, bssid)) {
3206 wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad BSSID");
3207 return -1;
3208 }
3209
3210 tmp = os_strstr(buf, "ssid=");
3211 if (!tmp || ssid_parse(tmp + 5, &ssid)) {
3212 wpa_printf(MSG_ERROR,
3213 "CTRL: SET_NEIGHBOR: Bad or missing SSID");
3214 return -1;
3215 }
3216 buf = os_strchr(tmp + 6, tmp[5] == '"' ? '"' : ' ');
3217 if (!buf)
3218 return -1;
3219
3220 tmp = os_strstr(buf, "nr=");
3221 if (!tmp) {
3222 wpa_printf(MSG_ERROR,
3223 "CTRL: SET_NEIGHBOR: Missing Neighbor Report element");
3224 return -1;
3225 }
3226
3227 buf = os_strchr(tmp, ' ');
3228 if (buf)
3229 *buf++ = '\0';
3230
3231 nr = wpabuf_parse_bin(tmp + 3);
3232 if (!nr) {
3233 wpa_printf(MSG_ERROR,
3234 "CTRL: SET_NEIGHBOR: Bad Neighbor Report element");
3235 return -1;
3236 }
3237
3238 if (!buf)
3239 goto set;
3240
3241 tmp = os_strstr(buf, "lci=");
3242 if (tmp) {
3243 buf = os_strchr(tmp, ' ');
3244 if (buf)
3245 *buf++ = '\0';
3246 lci = wpabuf_parse_bin(tmp + 4);
3247 if (!lci) {
3248 wpa_printf(MSG_ERROR,
3249 "CTRL: SET_NEIGHBOR: Bad LCI subelement");
3250 goto fail;
3251 }
3252 }
3253
3254 if (!buf)
3255 goto set;
3256
3257 tmp = os_strstr(buf, "civic=");
3258 if (tmp) {
3259 buf = os_strchr(tmp, ' ');
3260 if (buf)
3261 *buf++ = '\0';
3262 civic = wpabuf_parse_bin(tmp + 6);
3263 if (!civic) {
3264 wpa_printf(MSG_ERROR,
3265 "CTRL: SET_NEIGHBOR: Bad civic subelement");
3266 goto fail;
3267 }
3268 }
3269
3270 if (!buf)
3271 goto set;
3272
3273 if (os_strstr(buf, "stat"))
3274 stationary = 1;
3275
3276 tmp = os_strstr(buf, "bss_parameter=");
3277 if (tmp) {
3278 bss_parameters = atoi(tmp + 14);
3279 if (bss_parameters < 0 || bss_parameters > 0xff) {
3280 wpa_printf(MSG_ERROR,
3281 "CTRL: SET_NEIGHBOR: Bad bss_parameters subelement");
3282 goto fail;
3283 }
3284 }
3285
3286 set:
3287 ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic,
3288 stationary, bss_parameters);
3289
3290 fail:
3291 wpabuf_free(nr);
3292 wpabuf_free(lci);
3293 wpabuf_free(civic);
3294
3295 return ret;
3296 }
3297
3298
hostapd_ctrl_iface_remove_neighbor(struct hostapd_data * hapd,char * buf)3299 static int hostapd_ctrl_iface_remove_neighbor(struct hostapd_data *hapd,
3300 char *buf)
3301 {
3302 struct wpa_ssid_value ssid;
3303 struct wpa_ssid_value *ssidp = NULL;
3304 u8 bssid[ETH_ALEN];
3305 char *tmp;
3306
3307 if (hwaddr_aton(buf, bssid)) {
3308 wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad BSSID");
3309 return -1;
3310 }
3311
3312 tmp = os_strstr(buf, "ssid=");
3313 if (tmp) {
3314 ssidp = &ssid;
3315 if (ssid_parse(tmp + 5, &ssid)) {
3316 wpa_printf(MSG_ERROR,
3317 "CTRL: REMOVE_NEIGHBOR: Bad SSID");
3318 return -1;
3319 }
3320 }
3321
3322 return hostapd_neighbor_remove(hapd, bssid, ssidp);
3323 }
3324
3325
hostapd_ctrl_driver_flags(struct hostapd_iface * iface,char * buf,size_t buflen)3326 static int hostapd_ctrl_driver_flags(struct hostapd_iface *iface, char *buf,
3327 size_t buflen)
3328 {
3329 int ret, i;
3330 char *pos, *end;
3331
3332 ret = os_snprintf(buf, buflen, "%016llX:\n",
3333 (long long unsigned) iface->drv_flags);
3334 if (os_snprintf_error(buflen, ret))
3335 return -1;
3336
3337 pos = buf + ret;
3338 end = buf + buflen;
3339
3340 for (i = 0; i < 64; i++) {
3341 if (iface->drv_flags & (1LLU << i)) {
3342 ret = os_snprintf(pos, end - pos, "%s\n",
3343 driver_flag_to_string(1LLU << i));
3344 if (os_snprintf_error(end - pos, ret))
3345 return -1;
3346 pos += ret;
3347 }
3348 }
3349
3350 return pos - buf;
3351 }
3352
3353
hostapd_ctrl_driver_flags2(struct hostapd_iface * iface,char * buf,size_t buflen)3354 static int hostapd_ctrl_driver_flags2(struct hostapd_iface *iface, char *buf,
3355 size_t buflen)
3356 {
3357 int ret, i;
3358 char *pos, *end;
3359
3360 ret = os_snprintf(buf, buflen, "%016llX:\n",
3361 (long long unsigned) iface->drv_flags2);
3362 if (os_snprintf_error(buflen, ret))
3363 return -1;
3364
3365 pos = buf + ret;
3366 end = buf + buflen;
3367
3368 for (i = 0; i < 64; i++) {
3369 if (iface->drv_flags2 & (1LLU << i)) {
3370 ret = os_snprintf(pos, end - pos, "%s\n",
3371 driver_flag2_to_string(1LLU << i));
3372 if (os_snprintf_error(end - pos, ret))
3373 return -1;
3374 pos += ret;
3375 }
3376 }
3377
3378 return pos - buf;
3379 }
3380
3381
hostapd_ctrl_iface_acl_del_mac(struct mac_acl_entry ** acl,int * num,const char * txtaddr)3382 static int hostapd_ctrl_iface_acl_del_mac(struct mac_acl_entry **acl, int *num,
3383 const char *txtaddr)
3384 {
3385 u8 addr[ETH_ALEN];
3386 struct vlan_description vlan_id;
3387
3388 if (!(*num))
3389 return 0;
3390
3391 if (hwaddr_aton(txtaddr, addr))
3392 return -1;
3393
3394 if (hostapd_maclist_found(*acl, *num, addr, &vlan_id))
3395 hostapd_remove_acl_mac(acl, num, addr);
3396
3397 return 0;
3398 }
3399
3400
hostapd_ctrl_iface_acl_clear_list(struct mac_acl_entry ** acl,int * num)3401 static void hostapd_ctrl_iface_acl_clear_list(struct mac_acl_entry **acl,
3402 int *num)
3403 {
3404 while (*num)
3405 hostapd_remove_acl_mac(acl, num, (*acl)[0].addr);
3406 }
3407
3408
hostapd_ctrl_iface_acl_show_mac(struct mac_acl_entry * acl,int num,char * buf,size_t buflen)3409 static int hostapd_ctrl_iface_acl_show_mac(struct mac_acl_entry *acl, int num,
3410 char *buf, size_t buflen)
3411 {
3412 int i = 0, len = 0, ret = 0;
3413
3414 if (!acl)
3415 return 0;
3416
3417 while (i < num) {
3418 ret = os_snprintf(buf + len, buflen - len,
3419 MACSTR " VLAN_ID=%d\n",
3420 MAC2STR(acl[i].addr),
3421 acl[i].vlan_id.untagged);
3422 if (ret < 0 || (size_t) ret >= buflen - len)
3423 return len;
3424 i++;
3425 len += ret;
3426 }
3427 return len;
3428 }
3429
3430
hostapd_ctrl_iface_acl_add_mac(struct mac_acl_entry ** acl,int * num,const char * cmd)3431 static int hostapd_ctrl_iface_acl_add_mac(struct mac_acl_entry **acl, int *num,
3432 const char *cmd)
3433 {
3434 u8 addr[ETH_ALEN];
3435 struct vlan_description vlan_id;
3436 int ret = 0, vlanid = 0;
3437 const char *pos;
3438
3439 if (hwaddr_aton(cmd, addr))
3440 return -1;
3441
3442 pos = os_strstr(cmd, "VLAN_ID=");
3443 if (pos)
3444 vlanid = atoi(pos + 8);
3445
3446 if (!hostapd_maclist_found(*acl, *num, addr, &vlan_id)) {
3447 ret = hostapd_add_acl_maclist(acl, num, vlanid, addr);
3448 if (ret != -1 && *acl)
3449 qsort(*acl, *num, sizeof(**acl), hostapd_acl_comp);
3450 }
3451
3452 return ret < 0 ? -1 : 0;
3453 }
3454
3455
hostapd_ctrl_iface_get_capability(struct hostapd_data * hapd,const char * field,char * buf,size_t buflen)3456 static int hostapd_ctrl_iface_get_capability(struct hostapd_data *hapd,
3457 const char *field, char *buf,
3458 size_t buflen)
3459 {
3460 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s'", field);
3461
3462 #ifdef CONFIG_DPP
3463 if (os_strcmp(field, "dpp") == 0) {
3464 int res;
3465
3466 #ifdef CONFIG_DPP3
3467 res = os_snprintf(buf, buflen, "DPP=3");
3468 #elif defined(CONFIG_DPP2)
3469 res = os_snprintf(buf, buflen, "DPP=2");
3470 #else /* CONFIG_DPP2 */
3471 res = os_snprintf(buf, buflen, "DPP=1");
3472 #endif /* CONFIG_DPP2 */
3473 if (os_snprintf_error(buflen, res))
3474 return -1;
3475 return res;
3476 }
3477 #endif /* CONFIG_DPP */
3478
3479 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
3480 field);
3481
3482 return -1;
3483 }
3484
3485
3486 #ifdef ANDROID
hostapd_ctrl_iface_driver_cmd(struct hostapd_data * hapd,char * cmd,char * buf,size_t buflen)3487 static int hostapd_ctrl_iface_driver_cmd(struct hostapd_data *hapd, char *cmd,
3488 char *buf, size_t buflen)
3489 {
3490 int ret;
3491
3492 ret = hostapd_drv_driver_cmd(hapd, cmd, buf, buflen);
3493 if (ret == 0) {
3494 ret = os_snprintf(buf, buflen, "%s\n", "OK");
3495 if (os_snprintf_error(buflen, ret))
3496 ret = -1;
3497 }
3498 return ret;
3499 }
3500 #endif /* ANDROID */
3501
3502
hostapd_ctrl_iface_receive_process(struct hostapd_data * hapd,char * buf,char * reply,int reply_size,struct sockaddr_storage * from,socklen_t fromlen)3503 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
3504 char *buf, char *reply,
3505 int reply_size,
3506 struct sockaddr_storage *from,
3507 socklen_t fromlen)
3508 {
3509 int reply_len, res;
3510
3511 os_memcpy(reply, "OK\n", 3);
3512 reply_len = 3;
3513
3514 if (os_strcmp(buf, "PING") == 0) {
3515 os_memcpy(reply, "PONG\n", 5);
3516 reply_len = 5;
3517 } else if (os_strncmp(buf, "RELOG", 5) == 0) {
3518 if (wpa_debug_reopen_file() < 0)
3519 reply_len = -1;
3520 } else if (os_strncmp(buf, "NOTE ", 5) == 0) {
3521 wpa_printf(MSG_INFO, "NOTE: %s", buf + 5);
3522 } else if (os_strcmp(buf, "STATUS") == 0) {
3523 reply_len = hostapd_ctrl_iface_status(hapd, reply,
3524 reply_size);
3525 } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) {
3526 reply_len = hostapd_drv_status(hapd, reply, reply_size);
3527 } else if (os_strcmp(buf, "MIB") == 0) {
3528 reply_len = ieee802_11_get_mib(hapd, reply, reply_size);
3529 if (reply_len >= 0) {
3530 res = wpa_get_mib(hapd->wpa_auth, reply + reply_len,
3531 reply_size - reply_len);
3532 if (res < 0)
3533 reply_len = -1;
3534 else
3535 reply_len += res;
3536 }
3537 if (reply_len >= 0) {
3538 res = ieee802_1x_get_mib(hapd, reply + reply_len,
3539 reply_size - reply_len);
3540 if (res < 0)
3541 reply_len = -1;
3542 else
3543 reply_len += res;
3544 }
3545 #ifndef CONFIG_NO_RADIUS
3546 if (reply_len >= 0) {
3547 res = radius_client_get_mib(hapd->radius,
3548 reply + reply_len,
3549 reply_size - reply_len);
3550 if (res < 0)
3551 reply_len = -1;
3552 else
3553 reply_len += res;
3554 }
3555 #endif /* CONFIG_NO_RADIUS */
3556 } else if (os_strncmp(buf, "MIB ", 4) == 0) {
3557 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size,
3558 buf + 4);
3559 } else if (os_strcmp(buf, "STA-FIRST") == 0) {
3560 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
3561 reply_size);
3562 } else if (os_strncmp(buf, "STA ", 4) == 0) {
3563 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply,
3564 reply_size);
3565 } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
3566 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply,
3567 reply_size);
3568 } else if (os_strcmp(buf, "ATTACH") == 0) {
3569 if (hostapd_ctrl_iface_attach(hapd, from, fromlen, NULL))
3570 reply_len = -1;
3571 } else if (os_strncmp(buf, "ATTACH ", 7) == 0) {
3572 if (hostapd_ctrl_iface_attach(hapd, from, fromlen, buf + 7))
3573 reply_len = -1;
3574 } else if (os_strcmp(buf, "DETACH") == 0) {
3575 if (hostapd_ctrl_iface_detach(hapd, from, fromlen))
3576 reply_len = -1;
3577 } else if (os_strncmp(buf, "LEVEL ", 6) == 0) {
3578 if (hostapd_ctrl_iface_level(hapd, from, fromlen,
3579 buf + 6))
3580 reply_len = -1;
3581 } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) {
3582 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8))
3583 reply_len = -1;
3584 } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) {
3585 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15))
3586 reply_len = -1;
3587 } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) {
3588 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13))
3589 reply_len = -1;
3590 #ifdef CONFIG_TAXONOMY
3591 } else if (os_strncmp(buf, "SIGNATURE ", 10) == 0) {
3592 reply_len = hostapd_ctrl_iface_signature(hapd, buf + 10,
3593 reply, reply_size);
3594 #endif /* CONFIG_TAXONOMY */
3595 } else if (os_strncmp(buf, "POLL_STA ", 9) == 0) {
3596 if (hostapd_ctrl_iface_poll_sta(hapd, buf + 9))
3597 reply_len = -1;
3598 } else if (os_strcmp(buf, "STOP_AP") == 0) {
3599 if (hostapd_ctrl_iface_stop_ap(hapd))
3600 reply_len = -1;
3601 #ifdef NEED_AP_MLME
3602 } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) {
3603 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9))
3604 reply_len = -1;
3605 #endif /* NEED_AP_MLME */
3606 #ifdef CONFIG_WPS
3607 } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
3608 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8))
3609 reply_len = -1;
3610 } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) {
3611 reply_len = hostapd_ctrl_iface_wps_check_pin(
3612 hapd, buf + 14, reply, reply_size);
3613 } else if (os_strcmp(buf, "WPS_PBC") == 0) {
3614 if (hostapd_wps_button_pushed(hapd, NULL))
3615 reply_len = -1;
3616 } else if (os_strcmp(buf, "WPS_CANCEL") == 0) {
3617 if (hostapd_wps_cancel(hapd))
3618 reply_len = -1;
3619 } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) {
3620 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
3621 reply, reply_size);
3622 } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) {
3623 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0)
3624 reply_len = -1;
3625 } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) {
3626 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply,
3627 reply_size);
3628 #ifdef CONFIG_WPS_NFC
3629 } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) {
3630 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17))
3631 reply_len = -1;
3632 } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) {
3633 reply_len = hostapd_ctrl_iface_wps_nfc_config_token(
3634 hapd, buf + 21, reply, reply_size);
3635 } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
3636 reply_len = hostapd_ctrl_iface_wps_nfc_token(
3637 hapd, buf + 14, reply, reply_size);
3638 } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
3639 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
3640 hapd, buf + 21, reply, reply_size);
3641 } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
3642 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
3643 reply_len = -1;
3644 #endif /* CONFIG_WPS_NFC */
3645 #endif /* CONFIG_WPS */
3646 #ifdef CONFIG_INTERWORKING
3647 } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) {
3648 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16))
3649 reply_len = -1;
3650 } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) {
3651 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18))
3652 reply_len = -1;
3653 #endif /* CONFIG_INTERWORKING */
3654 #ifdef CONFIG_HS20
3655 } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) {
3656 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15))
3657 reply_len = -1;
3658 } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) {
3659 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16))
3660 reply_len = -1;
3661 #endif /* CONFIG_HS20 */
3662 #ifdef CONFIG_WNM_AP
3663 } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) {
3664 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18))
3665 reply_len = -1;
3666 } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
3667 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
3668 reply_len = -1;
3669 } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
3670 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
3671 reply_len = -1;
3672 } else if (os_strncmp(buf, "COLOC_INTF_REQ ", 15) == 0) {
3673 if (hostapd_ctrl_iface_coloc_intf_req(hapd, buf + 15))
3674 reply_len = -1;
3675 #endif /* CONFIG_WNM_AP */
3676 } else if (os_strcmp(buf, "GET_CONFIG") == 0) {
3677 reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
3678 reply_size);
3679 } else if (os_strncmp(buf, "SET ", 4) == 0) {
3680 if (hostapd_ctrl_iface_set(hapd, buf + 4))
3681 reply_len = -1;
3682 } else if (os_strncmp(buf, "GET ", 4) == 0) {
3683 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply,
3684 reply_size);
3685 } else if (os_strncmp(buf, "ENABLE", 6) == 0) {
3686 if (hostapd_ctrl_iface_enable(hapd->iface))
3687 reply_len = -1;
3688 } else if (os_strcmp(buf, "RELOAD_WPA_PSK") == 0) {
3689 if (hostapd_ctrl_iface_reload_wpa_psk(hapd))
3690 reply_len = -1;
3691 } else if (os_strncmp(buf, "RELOAD", 6) == 0) {
3692 if (hostapd_ctrl_iface_reload(hapd->iface))
3693 reply_len = -1;
3694 } else if (os_strncmp(buf, "DISABLE", 7) == 0) {
3695 if (hostapd_ctrl_iface_disable(hapd->iface))
3696 reply_len = -1;
3697 } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) {
3698 if (ieee802_11_set_beacon(hapd))
3699 reply_len = -1;
3700 #ifdef CONFIG_TESTING_OPTIONS
3701 } else if (os_strncmp(buf, "RADAR ", 6) == 0) {
3702 if (hostapd_ctrl_iface_radar(hapd, buf + 6))
3703 reply_len = -1;
3704 } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
3705 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
3706 reply_len = -1;
3707 } else if (os_strncmp(buf, "MGMT_TX_STATUS_PROCESS ", 23) == 0) {
3708 if (hostapd_ctrl_iface_mgmt_tx_status_process(hapd,
3709 buf + 23) < 0)
3710 reply_len = -1;
3711 } else if (os_strncmp(buf, "MGMT_RX_PROCESS ", 16) == 0) {
3712 if (hostapd_ctrl_iface_mgmt_rx_process(hapd, buf + 16) < 0)
3713 reply_len = -1;
3714 } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
3715 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
3716 reply_len = -1;
3717 } else if (os_strncmp(buf, "EAPOL_TX ", 9) == 0) {
3718 if (hostapd_ctrl_iface_eapol_tx(hapd, buf + 9) < 0)
3719 reply_len = -1;
3720 } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
3721 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
3722 reply_len = -1;
3723 } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
3724 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
3725 reply_len = -1;
3726 } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) {
3727 if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0)
3728 reply_len = -1;
3729 } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) {
3730 if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0)
3731 reply_len = -1;
3732 } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) {
3733 reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply,
3734 reply_size);
3735 } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) {
3736 if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0)
3737 reply_len = -1;
3738 } else if (os_strcmp(buf, "GET_FAIL") == 0) {
3739 reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size);
3740 } else if (os_strncmp(buf, "RESET_PN ", 9) == 0) {
3741 if (hostapd_ctrl_reset_pn(hapd, buf + 9) < 0)
3742 reply_len = -1;
3743 } else if (os_strncmp(buf, "SET_KEY ", 8) == 0) {
3744 if (hostapd_ctrl_set_key(hapd, buf + 8) < 0)
3745 reply_len = -1;
3746 } else if (os_strncmp(buf, "RESEND_M1 ", 10) == 0) {
3747 if (hostapd_ctrl_resend_m1(hapd, buf + 10) < 0)
3748 reply_len = -1;
3749 } else if (os_strncmp(buf, "RESEND_M3 ", 10) == 0) {
3750 if (hostapd_ctrl_resend_m3(hapd, buf + 10) < 0)
3751 reply_len = -1;
3752 } else if (os_strncmp(buf, "RESEND_GROUP_M1 ", 16) == 0) {
3753 if (hostapd_ctrl_resend_group_m1(hapd, buf + 16) < 0)
3754 reply_len = -1;
3755 } else if (os_strncmp(buf, "REKEY_PTK ", 10) == 0) {
3756 if (hostapd_ctrl_rekey_ptk(hapd, buf + 10) < 0)
3757 reply_len = -1;
3758 } else if (os_strcmp(buf, "REKEY_GTK") == 0) {
3759 if (wpa_auth_rekey_gtk(hapd->wpa_auth) < 0)
3760 reply_len = -1;
3761 } else if (os_strncmp(buf, "GET_PMK ", 8) == 0) {
3762 reply_len = hostapd_ctrl_get_pmk(hapd, buf + 8, reply,
3763 reply_size);
3764 } else if (os_strncmp(buf, "REGISTER_FRAME ", 15) == 0) {
3765 if (hostapd_ctrl_register_frame(hapd, buf + 16) < 0)
3766 reply_len = -1;
3767 #endif /* CONFIG_TESTING_OPTIONS */
3768 } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
3769 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
3770 reply_len = -1;
3771 } else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
3772 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
3773 reply_size);
3774 } else if (os_strcmp(buf, "ERP_FLUSH") == 0) {
3775 ieee802_1x_erp_flush(hapd);
3776 #ifdef RADIUS_SERVER
3777 radius_server_erp_flush(hapd->radius_srv);
3778 #endif /* RADIUS_SERVER */
3779 } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) {
3780 if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13))
3781 reply_len = -1;
3782 } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) {
3783 if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10))
3784 reply_len = -1;
3785 } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) {
3786 reply_len = hostapd_ctrl_iface_log_level(
3787 hapd, buf + 9, reply, reply_size);
3788 #ifdef NEED_AP_MLME
3789 } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) {
3790 reply_len = hostapd_ctrl_iface_track_sta_list(
3791 hapd, reply, reply_size);
3792 #endif /* NEED_AP_MLME */
3793 } else if (os_strcmp(buf, "PMKSA") == 0) {
3794 reply_len = hostapd_ctrl_iface_pmksa_list(hapd, reply,
3795 reply_size);
3796 } else if (os_strcmp(buf, "PMKSA_FLUSH") == 0) {
3797 hostapd_ctrl_iface_pmksa_flush(hapd);
3798 } else if (os_strncmp(buf, "PMKSA_ADD ", 10) == 0) {
3799 if (hostapd_ctrl_iface_pmksa_add(hapd, buf + 10) < 0)
3800 reply_len = -1;
3801 } else if (os_strncmp(buf, "SET_NEIGHBOR ", 13) == 0) {
3802 if (hostapd_ctrl_iface_set_neighbor(hapd, buf + 13))
3803 reply_len = -1;
3804 } else if (os_strcmp(buf, "SHOW_NEIGHBOR") == 0) {
3805 reply_len = hostapd_ctrl_iface_show_neighbor(hapd, reply,
3806 reply_size);
3807 } else if (os_strncmp(buf, "REMOVE_NEIGHBOR ", 16) == 0) {
3808 if (hostapd_ctrl_iface_remove_neighbor(hapd, buf + 16))
3809 reply_len = -1;
3810 } else if (os_strncmp(buf, "REQ_LCI ", 8) == 0) {
3811 if (hostapd_ctrl_iface_req_lci(hapd, buf + 8))
3812 reply_len = -1;
3813 } else if (os_strncmp(buf, "REQ_RANGE ", 10) == 0) {
3814 if (hostapd_ctrl_iface_req_range(hapd, buf + 10))
3815 reply_len = -1;
3816 } else if (os_strncmp(buf, "REQ_BEACON ", 11) == 0) {
3817 reply_len = hostapd_ctrl_iface_req_beacon(hapd, buf + 11,
3818 reply, reply_size);
3819 } else if (os_strcmp(buf, "DRIVER_FLAGS") == 0) {
3820 reply_len = hostapd_ctrl_driver_flags(hapd->iface, reply,
3821 reply_size);
3822 } else if (os_strcmp(buf, "DRIVER_FLAGS2") == 0) {
3823 reply_len = hostapd_ctrl_driver_flags2(hapd->iface, reply,
3824 reply_size);
3825 } else if (os_strcmp(buf, "TERMINATE") == 0) {
3826 eloop_terminate();
3827 } else if (os_strncmp(buf, "ACCEPT_ACL ", 11) == 0) {
3828 if (os_strncmp(buf + 11, "ADD_MAC ", 8) == 0) {
3829 if (hostapd_ctrl_iface_acl_add_mac(
3830 &hapd->conf->accept_mac,
3831 &hapd->conf->num_accept_mac, buf + 19))
3832 reply_len = -1;
3833 } else if (os_strncmp((buf + 11), "DEL_MAC ", 8) == 0) {
3834 if (!hostapd_ctrl_iface_acl_del_mac(
3835 &hapd->conf->accept_mac,
3836 &hapd->conf->num_accept_mac, buf + 19))
3837 hostapd_disassoc_accept_mac(hapd);
3838 else
3839 reply_len = -1;
3840 } else if (os_strcmp(buf + 11, "SHOW") == 0) {
3841 reply_len = hostapd_ctrl_iface_acl_show_mac(
3842 hapd->conf->accept_mac,
3843 hapd->conf->num_accept_mac, reply, reply_size);
3844 } else if (os_strcmp(buf + 11, "CLEAR") == 0) {
3845 hostapd_ctrl_iface_acl_clear_list(
3846 &hapd->conf->accept_mac,
3847 &hapd->conf->num_accept_mac);
3848 hostapd_disassoc_accept_mac(hapd);
3849 }
3850 } else if (os_strncmp(buf, "DENY_ACL ", 9) == 0) {
3851 if (os_strncmp(buf + 9, "ADD_MAC ", 8) == 0) {
3852 if (!hostapd_ctrl_iface_acl_add_mac(
3853 &hapd->conf->deny_mac,
3854 &hapd->conf->num_deny_mac, buf + 17))
3855 hostapd_disassoc_deny_mac(hapd);
3856 else
3857 reply_len = -1;
3858 } else if (os_strncmp(buf + 9, "DEL_MAC ", 8) == 0) {
3859 if (hostapd_ctrl_iface_acl_del_mac(
3860 &hapd->conf->deny_mac,
3861 &hapd->conf->num_deny_mac, buf + 17))
3862 reply_len = -1;
3863 } else if (os_strcmp(buf + 9, "SHOW") == 0) {
3864 reply_len = hostapd_ctrl_iface_acl_show_mac(
3865 hapd->conf->deny_mac,
3866 hapd->conf->num_deny_mac, reply, reply_size);
3867 } else if (os_strcmp(buf + 9, "CLEAR") == 0) {
3868 hostapd_ctrl_iface_acl_clear_list(
3869 &hapd->conf->deny_mac,
3870 &hapd->conf->num_deny_mac);
3871 }
3872 #ifdef CONFIG_DPP
3873 } else if (os_strncmp(buf, "DPP_QR_CODE ", 12) == 0) {
3874 res = hostapd_dpp_qr_code(hapd, buf + 12);
3875 if (res < 0) {
3876 reply_len = -1;
3877 } else {
3878 reply_len = os_snprintf(reply, reply_size, "%d", res);
3879 if (os_snprintf_error(reply_size, reply_len))
3880 reply_len = -1;
3881 }
3882 } else if (os_strncmp(buf, "DPP_NFC_URI ", 12) == 0) {
3883 res = hostapd_dpp_nfc_uri(hapd, buf + 12);
3884 if (res < 0) {
3885 reply_len = -1;
3886 } else {
3887 reply_len = os_snprintf(reply, reply_size, "%d", res);
3888 if (os_snprintf_error(reply_size, reply_len))
3889 reply_len = -1;
3890 }
3891 } else if (os_strncmp(buf, "DPP_NFC_HANDOVER_REQ ", 21) == 0) {
3892 res = hostapd_dpp_nfc_handover_req(hapd, buf + 20);
3893 if (res < 0) {
3894 reply_len = -1;
3895 } else {
3896 reply_len = os_snprintf(reply, reply_size, "%d", res);
3897 if (os_snprintf_error(reply_size, reply_len))
3898 reply_len = -1;
3899 }
3900 } else if (os_strncmp(buf, "DPP_NFC_HANDOVER_SEL ", 21) == 0) {
3901 res = hostapd_dpp_nfc_handover_sel(hapd, buf + 20);
3902 if (res < 0) {
3903 reply_len = -1;
3904 } else {
3905 reply_len = os_snprintf(reply, reply_size, "%d", res);
3906 if (os_snprintf_error(reply_size, reply_len))
3907 reply_len = -1;
3908 }
3909 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_GEN ", 18) == 0) {
3910 res = dpp_bootstrap_gen(hapd->iface->interfaces->dpp, buf + 18);
3911 if (res < 0) {
3912 reply_len = -1;
3913 } else {
3914 reply_len = os_snprintf(reply, reply_size, "%d", res);
3915 if (os_snprintf_error(reply_size, reply_len))
3916 reply_len = -1;
3917 }
3918 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_REMOVE ", 21) == 0) {
3919 if (dpp_bootstrap_remove(hapd->iface->interfaces->dpp,
3920 buf + 21) < 0)
3921 reply_len = -1;
3922 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_GET_URI ", 22) == 0) {
3923 const char *uri;
3924
3925 uri = dpp_bootstrap_get_uri(hapd->iface->interfaces->dpp,
3926 atoi(buf + 22));
3927 if (!uri) {
3928 reply_len = -1;
3929 } else {
3930 reply_len = os_snprintf(reply, reply_size, "%s", uri);
3931 if (os_snprintf_error(reply_size, reply_len))
3932 reply_len = -1;
3933 }
3934 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_INFO ", 19) == 0) {
3935 reply_len = dpp_bootstrap_info(hapd->iface->interfaces->dpp,
3936 atoi(buf + 19),
3937 reply, reply_size);
3938 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_SET ", 18) == 0) {
3939 if (dpp_bootstrap_set(hapd->iface->interfaces->dpp,
3940 atoi(buf + 18),
3941 os_strchr(buf + 18, ' ')) < 0)
3942 reply_len = -1;
3943 } else if (os_strncmp(buf, "DPP_AUTH_INIT ", 14) == 0) {
3944 if (hostapd_dpp_auth_init(hapd, buf + 13) < 0)
3945 reply_len = -1;
3946 } else if (os_strncmp(buf, "DPP_LISTEN ", 11) == 0) {
3947 if (hostapd_dpp_listen(hapd, buf + 11) < 0)
3948 reply_len = -1;
3949 } else if (os_strcmp(buf, "DPP_STOP_LISTEN") == 0) {
3950 hostapd_dpp_stop(hapd);
3951 hostapd_dpp_listen_stop(hapd);
3952 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_ADD", 20) == 0) {
3953 res = dpp_configurator_add(hapd->iface->interfaces->dpp,
3954 buf + 20);
3955 if (res < 0) {
3956 reply_len = -1;
3957 } else {
3958 reply_len = os_snprintf(reply, reply_size, "%d", res);
3959 if (os_snprintf_error(reply_size, reply_len))
3960 reply_len = -1;
3961 }
3962 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_SET ", 21) == 0) {
3963 if (dpp_configurator_set(hapd->iface->interfaces->dpp,
3964 buf + 20) < 0)
3965 reply_len = -1;
3966 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_REMOVE ", 24) == 0) {
3967 if (dpp_configurator_remove(hapd->iface->interfaces->dpp,
3968 buf + 24) < 0)
3969 reply_len = -1;
3970 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_SIGN ", 22) == 0) {
3971 if (hostapd_dpp_configurator_sign(hapd, buf + 21) < 0)
3972 reply_len = -1;
3973 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_GET_KEY ", 25) == 0) {
3974 reply_len = dpp_configurator_get_key_id(
3975 hapd->iface->interfaces->dpp,
3976 atoi(buf + 25),
3977 reply, reply_size);
3978 } else if (os_strncmp(buf, "DPP_PKEX_ADD ", 13) == 0) {
3979 res = hostapd_dpp_pkex_add(hapd, buf + 12);
3980 if (res < 0) {
3981 reply_len = -1;
3982 } else {
3983 reply_len = os_snprintf(reply, reply_size, "%d", res);
3984 if (os_snprintf_error(reply_size, reply_len))
3985 reply_len = -1;
3986 }
3987 } else if (os_strncmp(buf, "DPP_PKEX_REMOVE ", 16) == 0) {
3988 if (hostapd_dpp_pkex_remove(hapd, buf + 16) < 0)
3989 reply_len = -1;
3990 #ifdef CONFIG_DPP2
3991 } else if (os_strncmp(buf, "DPP_CONTROLLER_START ", 21) == 0) {
3992 if (hostapd_dpp_controller_start(hapd, buf + 20) < 0)
3993 reply_len = -1;
3994 } else if (os_strcmp(buf, "DPP_CONTROLLER_START") == 0) {
3995 if (hostapd_dpp_controller_start(hapd, NULL) < 0)
3996 reply_len = -1;
3997 } else if (os_strcmp(buf, "DPP_CONTROLLER_STOP") == 0) {
3998 dpp_controller_stop(hapd->iface->interfaces->dpp);
3999 } else if (os_strncmp(buf, "DPP_CHIRP ", 10) == 0) {
4000 if (hostapd_dpp_chirp(hapd, buf + 9) < 0)
4001 reply_len = -1;
4002 } else if (os_strcmp(buf, "DPP_STOP_CHIRP") == 0) {
4003 hostapd_dpp_chirp_stop(hapd);
4004 #endif /* CONFIG_DPP2 */
4005 #endif /* CONFIG_DPP */
4006 #ifdef RADIUS_SERVER
4007 } else if (os_strncmp(buf, "DAC_REQUEST ", 12) == 0) {
4008 if (radius_server_dac_request(hapd->radius_srv, buf + 12) < 0)
4009 reply_len = -1;
4010 #endif /* RADIUS_SERVER */
4011 } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) {
4012 reply_len = hostapd_ctrl_iface_get_capability(
4013 hapd, buf + 15, reply, reply_size);
4014 #ifdef CONFIG_PASN
4015 } else if (os_strcmp(buf, "PTKSA_CACHE_LIST") == 0) {
4016 reply_len = ptksa_cache_list(hapd->ptksa, reply, reply_size);
4017 #endif /* CONFIG_PASN */
4018 #ifdef ANDROID
4019 } else if (os_strncmp(buf, "DRIVER ", 7) == 0) {
4020 reply_len = hostapd_ctrl_iface_driver_cmd(hapd, buf + 7, reply,
4021 reply_size);
4022 #endif /* ANDROID */
4023 } else {
4024 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
4025 reply_len = 16;
4026 }
4027
4028 if (reply_len < 0) {
4029 os_memcpy(reply, "FAIL\n", 5);
4030 reply_len = 5;
4031 }
4032
4033 return reply_len;
4034 }
4035
4036
hostapd_ctrl_iface_receive(int sock,void * eloop_ctx,void * sock_ctx)4037 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
4038 void *sock_ctx)
4039 {
4040 struct hostapd_data *hapd = eloop_ctx;
4041 char buf[4096];
4042 int res;
4043 struct sockaddr_storage from;
4044 socklen_t fromlen = sizeof(from);
4045 char *reply, *pos = buf;
4046 const int reply_size = 4096;
4047 int reply_len;
4048 int level = MSG_DEBUG;
4049 #ifdef CONFIG_CTRL_IFACE_UDP
4050 unsigned char lcookie[CTRL_IFACE_COOKIE_LEN];
4051 #endif /* CONFIG_CTRL_IFACE_UDP */
4052
4053 res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
4054 (struct sockaddr *) &from, &fromlen);
4055 if (res < 0) {
4056 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
4057 strerror(errno));
4058 return;
4059 }
4060 buf[res] = '\0';
4061
4062 reply = os_malloc(reply_size);
4063 if (reply == NULL) {
4064 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
4065 fromlen) < 0) {
4066 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
4067 strerror(errno));
4068 }
4069 return;
4070 }
4071
4072 #ifdef CONFIG_CTRL_IFACE_UDP
4073 if (os_strcmp(buf, "GET_COOKIE") == 0) {
4074 os_memcpy(reply, "COOKIE=", 7);
4075 wpa_snprintf_hex(reply + 7, 2 * CTRL_IFACE_COOKIE_LEN + 1,
4076 hapd->ctrl_iface_cookie,
4077 CTRL_IFACE_COOKIE_LEN);
4078 reply_len = 7 + 2 * CTRL_IFACE_COOKIE_LEN;
4079 goto done;
4080 }
4081
4082 if (os_strncmp(buf, "COOKIE=", 7) != 0 ||
4083 hexstr2bin(buf + 7, lcookie, CTRL_IFACE_COOKIE_LEN) < 0) {
4084 wpa_printf(MSG_DEBUG,
4085 "CTRL: No cookie in the request - drop request");
4086 os_free(reply);
4087 return;
4088 }
4089
4090 if (os_memcmp(hapd->ctrl_iface_cookie, lcookie,
4091 CTRL_IFACE_COOKIE_LEN) != 0) {
4092 wpa_printf(MSG_DEBUG,
4093 "CTRL: Invalid cookie in the request - drop request");
4094 os_free(reply);
4095 return;
4096 }
4097
4098 pos = buf + 7 + 2 * CTRL_IFACE_COOKIE_LEN;
4099 while (*pos == ' ')
4100 pos++;
4101 #endif /* CONFIG_CTRL_IFACE_UDP */
4102
4103 if (os_strcmp(pos, "PING") == 0)
4104 level = MSG_EXCESSIVE;
4105 wpa_hexdump_ascii(level, "RX ctrl_iface", pos, res);
4106
4107 reply_len = hostapd_ctrl_iface_receive_process(hapd, pos,
4108 reply, reply_size,
4109 &from, fromlen);
4110
4111 #ifdef CONFIG_CTRL_IFACE_UDP
4112 done:
4113 #endif /* CONFIG_CTRL_IFACE_UDP */
4114 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
4115 fromlen) < 0) {
4116 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
4117 strerror(errno));
4118 }
4119 os_free(reply);
4120 }
4121
4122
4123 #ifndef CONFIG_CTRL_IFACE_UDP
hostapd_ctrl_iface_path(struct hostapd_data * hapd)4124 static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd)
4125 {
4126 char *buf;
4127 size_t len;
4128
4129 if (hapd->conf->ctrl_interface == NULL)
4130 return NULL;
4131
4132 len = os_strlen(hapd->conf->ctrl_interface) +
4133 os_strlen(hapd->conf->iface) + 2;
4134 buf = os_malloc(len);
4135 if (buf == NULL)
4136 return NULL;
4137
4138 os_snprintf(buf, len, "%s/%s",
4139 hapd->conf->ctrl_interface, hapd->conf->iface);
4140 buf[len - 1] = '\0';
4141 return buf;
4142 }
4143 #endif /* CONFIG_CTRL_IFACE_UDP */
4144
4145
hostapd_ctrl_iface_msg_cb(void * ctx,int level,enum wpa_msg_type type,const char * txt,size_t len)4146 static void hostapd_ctrl_iface_msg_cb(void *ctx, int level,
4147 enum wpa_msg_type type,
4148 const char *txt, size_t len)
4149 {
4150 struct hostapd_data *hapd = ctx;
4151 if (hapd == NULL)
4152 return;
4153 hostapd_ctrl_iface_send(hapd, level, type, txt, len);
4154 }
4155
4156
hostapd_ctrl_iface_init(struct hostapd_data * hapd)4157 int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
4158 {
4159 #ifdef CONFIG_CTRL_IFACE_UDP
4160 int port = HOSTAPD_CTRL_IFACE_PORT;
4161 char p[32] = { 0 };
4162 char port_str[40], *tmp;
4163 char *pos;
4164 struct addrinfo hints = { 0 }, *res, *saveres;
4165 int n;
4166
4167 if (hapd->ctrl_sock > -1) {
4168 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
4169 return 0;
4170 }
4171
4172 if (hapd->conf->ctrl_interface == NULL)
4173 return 0;
4174
4175 pos = os_strstr(hapd->conf->ctrl_interface, "udp:");
4176 if (pos) {
4177 pos += 4;
4178 port = atoi(pos);
4179 if (port <= 0) {
4180 wpa_printf(MSG_ERROR, "Invalid ctrl_iface UDP port");
4181 goto fail;
4182 }
4183 }
4184
4185 dl_list_init(&hapd->ctrl_dst);
4186 hapd->ctrl_sock = -1;
4187 os_get_random(hapd->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN);
4188
4189 #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE
4190 hints.ai_flags = AI_PASSIVE;
4191 #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
4192
4193 #ifdef CONFIG_CTRL_IFACE_UDP_IPV6
4194 hints.ai_family = AF_INET6;
4195 #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */
4196 hints.ai_family = AF_INET;
4197 #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */
4198 hints.ai_socktype = SOCK_DGRAM;
4199
4200 try_again:
4201 os_snprintf(p, sizeof(p), "%d", port);
4202 n = getaddrinfo(NULL, p, &hints, &res);
4203 if (n) {
4204 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n));
4205 goto fail;
4206 }
4207
4208 saveres = res;
4209 hapd->ctrl_sock = socket(res->ai_family, res->ai_socktype,
4210 res->ai_protocol);
4211 if (hapd->ctrl_sock < 0) {
4212 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno));
4213 goto fail;
4214 }
4215
4216 if (bind(hapd->ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) {
4217 port--;
4218 if ((HOSTAPD_CTRL_IFACE_PORT - port) <
4219 HOSTAPD_CTRL_IFACE_PORT_LIMIT && !pos)
4220 goto try_again;
4221 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno));
4222 goto fail;
4223 }
4224
4225 freeaddrinfo(saveres);
4226
4227 os_snprintf(port_str, sizeof(port_str), "udp:%d", port);
4228 tmp = os_strdup(port_str);
4229 if (tmp) {
4230 os_free(hapd->conf->ctrl_interface);
4231 hapd->conf->ctrl_interface = tmp;
4232 }
4233 wpa_printf(MSG_DEBUG, "ctrl_iface_init UDP port: %d", port);
4234
4235 if (eloop_register_read_sock(hapd->ctrl_sock,
4236 hostapd_ctrl_iface_receive, hapd, NULL) <
4237 0) {
4238 hostapd_ctrl_iface_deinit(hapd);
4239 return -1;
4240 }
4241
4242 hapd->msg_ctx = hapd;
4243 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
4244
4245 return 0;
4246
4247 fail:
4248 if (hapd->ctrl_sock >= 0)
4249 close(hapd->ctrl_sock);
4250 return -1;
4251 #else /* CONFIG_CTRL_IFACE_UDP */
4252 struct sockaddr_un addr;
4253 int s = -1;
4254 char *fname = NULL;
4255
4256 if (hapd->ctrl_sock > -1) {
4257 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
4258 return 0;
4259 }
4260
4261 dl_list_init(&hapd->ctrl_dst);
4262
4263 if (hapd->conf->ctrl_interface == NULL)
4264 return 0;
4265
4266 if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
4267 if (errno == EEXIST) {
4268 wpa_printf(MSG_DEBUG, "Using existing control "
4269 "interface directory.");
4270 } else {
4271 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
4272 strerror(errno));
4273 goto fail;
4274 }
4275 }
4276
4277 if (hapd->conf->ctrl_interface_gid_set &&
4278 lchown(hapd->conf->ctrl_interface, -1,
4279 hapd->conf->ctrl_interface_gid) < 0) {
4280 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s",
4281 strerror(errno));
4282 return -1;
4283 }
4284
4285 if (!hapd->conf->ctrl_interface_gid_set &&
4286 hapd->iface->interfaces->ctrl_iface_group &&
4287 lchown(hapd->conf->ctrl_interface, -1,
4288 hapd->iface->interfaces->ctrl_iface_group) < 0) {
4289 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s",
4290 strerror(errno));
4291 return -1;
4292 }
4293
4294 #ifdef ANDROID
4295 /*
4296 * Android is using umask 0077 which would leave the control interface
4297 * directory without group access. This breaks things since Wi-Fi
4298 * framework assumes that this directory can be accessed by other
4299 * applications in the wifi group. Fix this by adding group access even
4300 * if umask value would prevent this.
4301 */
4302 if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
4303 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
4304 strerror(errno));
4305 /* Try to continue anyway */
4306 }
4307 #endif /* ANDROID */
4308
4309 if (os_strlen(hapd->conf->ctrl_interface) + 1 +
4310 os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
4311 goto fail;
4312
4313 s = socket(PF_UNIX, SOCK_DGRAM, 0);
4314 if (s < 0) {
4315 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
4316 goto fail;
4317 }
4318
4319 os_memset(&addr, 0, sizeof(addr));
4320 #ifdef __FreeBSD__
4321 addr.sun_len = sizeof(addr);
4322 #endif /* __FreeBSD__ */
4323 addr.sun_family = AF_UNIX;
4324 fname = hostapd_ctrl_iface_path(hapd);
4325 if (fname == NULL)
4326 goto fail;
4327 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
4328 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
4329 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
4330 strerror(errno));
4331 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
4332 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
4333 " allow connections - assuming it was left"
4334 "over from forced program termination");
4335 if (unlink(fname) < 0) {
4336 wpa_printf(MSG_ERROR,
4337 "Could not unlink existing ctrl_iface socket '%s': %s",
4338 fname, strerror(errno));
4339 goto fail;
4340 }
4341 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
4342 0) {
4343 wpa_printf(MSG_ERROR,
4344 "hostapd-ctrl-iface: bind(PF_UNIX): %s",
4345 strerror(errno));
4346 goto fail;
4347 }
4348 wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
4349 "ctrl_iface socket '%s'", fname);
4350 } else {
4351 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
4352 "be in use - cannot override it");
4353 wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
4354 "not used anymore", fname);
4355 os_free(fname);
4356 fname = NULL;
4357 goto fail;
4358 }
4359 }
4360
4361 if (hapd->conf->ctrl_interface_gid_set &&
4362 lchown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
4363 wpa_printf(MSG_ERROR, "lchown[ctrl_interface/ifname]: %s",
4364 strerror(errno));
4365 goto fail;
4366 }
4367
4368 if (!hapd->conf->ctrl_interface_gid_set &&
4369 hapd->iface->interfaces->ctrl_iface_group &&
4370 lchown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
4371 wpa_printf(MSG_ERROR, "lchown[ctrl_interface/ifname]: %s",
4372 strerror(errno));
4373 goto fail;
4374 }
4375
4376 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
4377 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
4378 strerror(errno));
4379 goto fail;
4380 }
4381 os_free(fname);
4382
4383 hapd->ctrl_sock = s;
4384 if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd,
4385 NULL) < 0) {
4386 hostapd_ctrl_iface_deinit(hapd);
4387 return -1;
4388 }
4389 hapd->msg_ctx = hapd;
4390 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
4391
4392 return 0;
4393
4394 fail:
4395 if (s >= 0)
4396 close(s);
4397 if (fname) {
4398 unlink(fname);
4399 os_free(fname);
4400 }
4401 return -1;
4402 #endif /* CONFIG_CTRL_IFACE_UDP */
4403 }
4404
4405
hostapd_ctrl_iface_deinit(struct hostapd_data * hapd)4406 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
4407 {
4408 struct wpa_ctrl_dst *dst, *prev;
4409
4410 if (hapd->ctrl_sock > -1) {
4411 #ifndef CONFIG_CTRL_IFACE_UDP
4412 char *fname;
4413 #endif /* !CONFIG_CTRL_IFACE_UDP */
4414
4415 eloop_unregister_read_sock(hapd->ctrl_sock);
4416 close(hapd->ctrl_sock);
4417 hapd->ctrl_sock = -1;
4418 #ifndef CONFIG_CTRL_IFACE_UDP
4419 fname = hostapd_ctrl_iface_path(hapd);
4420 if (fname)
4421 unlink(fname);
4422 os_free(fname);
4423
4424 if (hapd->conf->ctrl_interface &&
4425 rmdir(hapd->conf->ctrl_interface) < 0) {
4426 if (errno == ENOTEMPTY) {
4427 wpa_printf(MSG_DEBUG, "Control interface "
4428 "directory not empty - leaving it "
4429 "behind");
4430 } else {
4431 wpa_printf(MSG_ERROR,
4432 "rmdir[ctrl_interface=%s]: %s",
4433 hapd->conf->ctrl_interface,
4434 strerror(errno));
4435 }
4436 }
4437 #endif /* !CONFIG_CTRL_IFACE_UDP */
4438 }
4439
4440 dl_list_for_each_safe(dst, prev, &hapd->ctrl_dst, struct wpa_ctrl_dst,
4441 list)
4442 os_free(dst);
4443
4444 #ifdef CONFIG_TESTING_OPTIONS
4445 l2_packet_deinit(hapd->l2_test);
4446 hapd->l2_test = NULL;
4447 #endif /* CONFIG_TESTING_OPTIONS */
4448 }
4449
4450
hostapd_ctrl_iface_add(struct hapd_interfaces * interfaces,char * buf)4451 static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces,
4452 char *buf)
4453 {
4454 if (hostapd_add_iface(interfaces, buf) < 0) {
4455 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf);
4456 return -1;
4457 }
4458 return 0;
4459 }
4460
4461
hostapd_ctrl_iface_remove(struct hapd_interfaces * interfaces,char * buf)4462 static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces,
4463 char *buf)
4464 {
4465 if (hostapd_remove_iface(interfaces, buf) < 0) {
4466 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf);
4467 return -1;
4468 }
4469 return 0;
4470 }
4471
4472
hostapd_global_ctrl_iface_attach(struct hapd_interfaces * interfaces,struct sockaddr_storage * from,socklen_t fromlen,char * input)4473 static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces,
4474 struct sockaddr_storage *from,
4475 socklen_t fromlen, char *input)
4476 {
4477 return ctrl_iface_attach(&interfaces->global_ctrl_dst, from, fromlen,
4478 input);
4479 }
4480
4481
hostapd_global_ctrl_iface_detach(struct hapd_interfaces * interfaces,struct sockaddr_storage * from,socklen_t fromlen)4482 static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces,
4483 struct sockaddr_storage *from,
4484 socklen_t fromlen)
4485 {
4486 return ctrl_iface_detach(&interfaces->global_ctrl_dst, from, fromlen);
4487 }
4488
4489
hostapd_ctrl_iface_flush(struct hapd_interfaces * interfaces)4490 static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces)
4491 {
4492 #ifdef CONFIG_WPS_TESTING
4493 wps_version_number = 0x20;
4494 wps_testing_stub_cred = 0;
4495 wps_corrupt_pkhash = 0;
4496 #endif /* CONFIG_WPS_TESTING */
4497
4498 #ifdef CONFIG_TESTING_OPTIONS
4499 #ifdef CONFIG_DPP
4500 dpp_test = DPP_TEST_DISABLED;
4501 #ifdef CONFIG_DPP3
4502 dpp_version_override = 3;
4503 #elif defined(CONFIG_DPP2)
4504 dpp_version_override = 2;
4505 #else /* CONFIG_DPP2 */
4506 dpp_version_override = 1;
4507 #endif /* CONFIG_DPP2 */
4508 #endif /* CONFIG_DPP */
4509 #endif /* CONFIG_TESTING_OPTIONS */
4510
4511 #ifdef CONFIG_DPP
4512 dpp_global_clear(interfaces->dpp);
4513 #endif /* CONFIG_DPP */
4514 }
4515
4516
4517 #ifdef CONFIG_FST
4518
4519 static int
hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces * interfaces,const char * cmd)4520 hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces,
4521 const char *cmd)
4522 {
4523 char ifname[IFNAMSIZ + 1];
4524 struct fst_iface_cfg cfg;
4525 struct hostapd_data *hapd;
4526 struct fst_wpa_obj iface_obj;
4527
4528 if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) {
4529 hapd = hostapd_get_iface(interfaces, ifname);
4530 if (hapd) {
4531 if (hapd->iface->fst) {
4532 wpa_printf(MSG_INFO, "FST: Already attached");
4533 return -1;
4534 }
4535 fst_hostapd_fill_iface_obj(hapd, &iface_obj);
4536 hapd->iface->fst = fst_attach(ifname, hapd->own_addr,
4537 &iface_obj, &cfg);
4538 if (hapd->iface->fst)
4539 return 0;
4540 }
4541 }
4542
4543 return -EINVAL;
4544 }
4545
4546
4547 static int
hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces * interfaces,const char * cmd)4548 hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces,
4549 const char *cmd)
4550 {
4551 char ifname[IFNAMSIZ + 1];
4552 struct hostapd_data * hapd;
4553
4554 if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) {
4555 hapd = hostapd_get_iface(interfaces, ifname);
4556 if (hapd) {
4557 if (!fst_iface_detach(ifname)) {
4558 hapd->iface->fst = NULL;
4559 hapd->iface->fst_ies = NULL;
4560 return 0;
4561 }
4562 }
4563 }
4564
4565 return -EINVAL;
4566 }
4567
4568 #endif /* CONFIG_FST */
4569
4570
4571 static struct hostapd_data *
hostapd_interfaces_get_hapd(struct hapd_interfaces * interfaces,const char * ifname)4572 hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces,
4573 const char *ifname)
4574 {
4575 size_t i, j;
4576
4577 for (i = 0; i < interfaces->count; i++) {
4578 struct hostapd_iface *iface = interfaces->iface[i];
4579
4580 for (j = 0; j < iface->num_bss; j++) {
4581 struct hostapd_data *hapd;
4582
4583 hapd = iface->bss[j];
4584 if (os_strcmp(ifname, hapd->conf->iface) == 0)
4585 return hapd;
4586 }
4587 }
4588
4589 return NULL;
4590 }
4591
4592
hostapd_ctrl_iface_dup_param(struct hostapd_data * src_hapd,struct hostapd_data * dst_hapd,const char * param)4593 static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd,
4594 struct hostapd_data *dst_hapd,
4595 const char *param)
4596 {
4597 int res;
4598 char *value;
4599
4600 value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
4601 if (!value) {
4602 wpa_printf(MSG_ERROR,
4603 "DUP: cannot allocate buffer to stringify %s",
4604 param);
4605 goto error_return;
4606 }
4607
4608 if (os_strcmp(param, "wpa") == 0) {
4609 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d",
4610 src_hapd->conf->wpa);
4611 } else if (os_strcmp(param, "wpa_key_mgmt") == 0 &&
4612 src_hapd->conf->wpa_key_mgmt) {
4613 res = hostapd_ctrl_iface_get_key_mgmt(
4614 src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
4615 if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res))
4616 goto error_stringify;
4617 } else if (os_strcmp(param, "wpa_pairwise") == 0 &&
4618 src_hapd->conf->wpa_pairwise) {
4619 res = wpa_write_ciphers(value,
4620 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
4621 src_hapd->conf->wpa_pairwise, " ");
4622 if (res < 0)
4623 goto error_stringify;
4624 } else if (os_strcmp(param, "rsn_pairwise") == 0 &&
4625 src_hapd->conf->rsn_pairwise) {
4626 res = wpa_write_ciphers(value,
4627 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
4628 src_hapd->conf->rsn_pairwise, " ");
4629 if (res < 0)
4630 goto error_stringify;
4631 } else if (os_strcmp(param, "wpa_passphrase") == 0 &&
4632 src_hapd->conf->ssid.wpa_passphrase) {
4633 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s",
4634 src_hapd->conf->ssid.wpa_passphrase);
4635 } else if (os_strcmp(param, "wpa_psk") == 0 &&
4636 src_hapd->conf->ssid.wpa_psk_set) {
4637 wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
4638 src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
4639 } else {
4640 wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param);
4641 goto error_return;
4642 }
4643
4644 res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value);
4645 os_free(value);
4646 return res;
4647
4648 error_stringify:
4649 wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param);
4650 error_return:
4651 os_free(value);
4652 return -1;
4653 }
4654
4655
4656 static int
hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces * interfaces,const char * input,char * reply,int reply_size)4657 hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces,
4658 const char *input,
4659 char *reply, int reply_size)
4660 {
4661 size_t i, j;
4662 int res;
4663 char *pos, *end;
4664 struct hostapd_iface *iface;
4665 int show_ctrl = 0;
4666
4667 if (input)
4668 show_ctrl = !!os_strstr(input, "ctrl");
4669
4670 pos = reply;
4671 end = reply + reply_size;
4672
4673 for (i = 0; i < interfaces->count; i++) {
4674 iface = interfaces->iface[i];
4675
4676 for (j = 0; j < iface->num_bss; j++) {
4677 struct hostapd_bss_config *conf;
4678
4679 conf = iface->conf->bss[j];
4680 if (show_ctrl)
4681 res = os_snprintf(pos, end - pos,
4682 "%s ctrl_iface=%s\n",
4683 conf->iface,
4684 conf->ctrl_interface ?
4685 conf->ctrl_interface : "N/A");
4686 else
4687 res = os_snprintf(pos, end - pos, "%s\n",
4688 conf->iface);
4689 if (os_snprintf_error(end - pos, res)) {
4690 *pos = '\0';
4691 return pos - reply;
4692 }
4693 pos += res;
4694 }
4695 }
4696
4697 return pos - reply;
4698 }
4699
4700
4701 static int
hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces * interfaces,char * cmd)4702 hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces,
4703 char *cmd)
4704 {
4705 char *p_start = cmd, *p_end;
4706 struct hostapd_data *src_hapd, *dst_hapd;
4707
4708 /* cmd: "<src ifname> <dst ifname> <variable name> */
4709
4710 p_end = os_strchr(p_start, ' ');
4711 if (!p_end) {
4712 wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'",
4713 cmd);
4714 return -1;
4715 }
4716
4717 *p_end = '\0';
4718 src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
4719 if (!src_hapd) {
4720 wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'",
4721 p_start);
4722 return -1;
4723 }
4724
4725 p_start = p_end + 1;
4726 p_end = os_strchr(p_start, ' ');
4727 if (!p_end) {
4728 wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'",
4729 cmd);
4730 return -1;
4731 }
4732
4733 *p_end = '\0';
4734 dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
4735 if (!dst_hapd) {
4736 wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'",
4737 p_start);
4738 return -1;
4739 }
4740
4741 p_start = p_end + 1;
4742 return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start);
4743 }
4744
4745
hostapd_global_ctrl_iface_ifname(struct hapd_interfaces * interfaces,const char * ifname,char * buf,char * reply,int reply_size,struct sockaddr_storage * from,socklen_t fromlen)4746 static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces,
4747 const char *ifname,
4748 char *buf, char *reply,
4749 int reply_size,
4750 struct sockaddr_storage *from,
4751 socklen_t fromlen)
4752 {
4753 struct hostapd_data *hapd;
4754
4755 hapd = hostapd_interfaces_get_hapd(interfaces, ifname);
4756 if (hapd == NULL) {
4757 int res;
4758
4759 res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n");
4760 if (os_snprintf_error(reply_size, res))
4761 return -1;
4762 return res;
4763 }
4764
4765 return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size,
4766 from, fromlen);
4767 }
4768
4769
hostapd_global_ctrl_iface_receive(int sock,void * eloop_ctx,void * sock_ctx)4770 static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
4771 void *sock_ctx)
4772 {
4773 struct hapd_interfaces *interfaces = eloop_ctx;
4774 char buffer[256], *buf = buffer;
4775 int res;
4776 struct sockaddr_storage from;
4777 socklen_t fromlen = sizeof(from);
4778 char *reply;
4779 int reply_len;
4780 const int reply_size = 4096;
4781 #ifdef CONFIG_CTRL_IFACE_UDP
4782 unsigned char lcookie[CTRL_IFACE_COOKIE_LEN];
4783 #endif /* CONFIG_CTRL_IFACE_UDP */
4784
4785 res = recvfrom(sock, buffer, sizeof(buffer) - 1, 0,
4786 (struct sockaddr *) &from, &fromlen);
4787 if (res < 0) {
4788 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
4789 strerror(errno));
4790 return;
4791 }
4792 buf[res] = '\0';
4793 wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf);
4794
4795 reply = os_malloc(reply_size);
4796 if (reply == NULL) {
4797 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
4798 fromlen) < 0) {
4799 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
4800 strerror(errno));
4801 }
4802 return;
4803 }
4804
4805 os_memcpy(reply, "OK\n", 3);
4806 reply_len = 3;
4807
4808 #ifdef CONFIG_CTRL_IFACE_UDP
4809 if (os_strcmp(buf, "GET_COOKIE") == 0) {
4810 os_memcpy(reply, "COOKIE=", 7);
4811 wpa_snprintf_hex(reply + 7, 2 * CTRL_IFACE_COOKIE_LEN + 1,
4812 interfaces->ctrl_iface_cookie,
4813 CTRL_IFACE_COOKIE_LEN);
4814 reply_len = 7 + 2 * CTRL_IFACE_COOKIE_LEN;
4815 goto send_reply;
4816 }
4817
4818 if (os_strncmp(buf, "COOKIE=", 7) != 0 ||
4819 hexstr2bin(buf + 7, lcookie, CTRL_IFACE_COOKIE_LEN) < 0) {
4820 wpa_printf(MSG_DEBUG,
4821 "CTRL: No cookie in the request - drop request");
4822 os_free(reply);
4823 return;
4824 }
4825
4826 if (os_memcmp(interfaces->ctrl_iface_cookie, lcookie,
4827 CTRL_IFACE_COOKIE_LEN) != 0) {
4828 wpa_printf(MSG_DEBUG,
4829 "CTRL: Invalid cookie in the request - drop request");
4830 os_free(reply);
4831 return;
4832 }
4833
4834 buf += 7 + 2 * CTRL_IFACE_COOKIE_LEN;
4835 while (*buf == ' ')
4836 buf++;
4837 #endif /* CONFIG_CTRL_IFACE_UDP */
4838
4839 if (os_strncmp(buf, "IFNAME=", 7) == 0) {
4840 char *pos = os_strchr(buf + 7, ' ');
4841
4842 if (pos) {
4843 *pos++ = '\0';
4844 reply_len = hostapd_global_ctrl_iface_ifname(
4845 interfaces, buf + 7, pos, reply, reply_size,
4846 &from, fromlen);
4847 goto send_reply;
4848 }
4849 }
4850
4851 if (os_strcmp(buf, "PING") == 0) {
4852 os_memcpy(reply, "PONG\n", 5);
4853 reply_len = 5;
4854 } else if (os_strncmp(buf, "RELOG", 5) == 0) {
4855 if (wpa_debug_reopen_file() < 0)
4856 reply_len = -1;
4857 } else if (os_strcmp(buf, "FLUSH") == 0) {
4858 hostapd_ctrl_iface_flush(interfaces);
4859 } else if (os_strncmp(buf, "ADD ", 4) == 0) {
4860 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0)
4861 reply_len = -1;
4862 } else if (os_strncmp(buf, "REMOVE ", 7) == 0) {
4863 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0)
4864 reply_len = -1;
4865 } else if (os_strcmp(buf, "ATTACH") == 0) {
4866 if (hostapd_global_ctrl_iface_attach(interfaces, &from,
4867 fromlen, NULL))
4868 reply_len = -1;
4869 } else if (os_strncmp(buf, "ATTACH ", 7) == 0) {
4870 if (hostapd_global_ctrl_iface_attach(interfaces, &from,
4871 fromlen, buf + 7))
4872 reply_len = -1;
4873 } else if (os_strcmp(buf, "DETACH") == 0) {
4874 if (hostapd_global_ctrl_iface_detach(interfaces, &from,
4875 fromlen))
4876 reply_len = -1;
4877 #ifdef CONFIG_MODULE_TESTS
4878 } else if (os_strcmp(buf, "MODULE_TESTS") == 0) {
4879 if (hapd_module_tests() < 0)
4880 reply_len = -1;
4881 #endif /* CONFIG_MODULE_TESTS */
4882 #ifdef CONFIG_FST
4883 } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) {
4884 if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11))
4885 reply_len = os_snprintf(reply, reply_size, "OK\n");
4886 else
4887 reply_len = -1;
4888 } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) {
4889 if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11))
4890 reply_len = os_snprintf(reply, reply_size, "OK\n");
4891 else
4892 reply_len = -1;
4893 } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) {
4894 reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size);
4895 #endif /* CONFIG_FST */
4896 } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) {
4897 if (!hostapd_global_ctrl_iface_dup_network(interfaces,
4898 buf + 12))
4899 reply_len = os_snprintf(reply, reply_size, "OK\n");
4900 else
4901 reply_len = -1;
4902 } else if (os_strncmp(buf, "INTERFACES", 10) == 0) {
4903 reply_len = hostapd_global_ctrl_iface_interfaces(
4904 interfaces, buf + 10, reply, sizeof(buffer));
4905 } else if (os_strcmp(buf, "TERMINATE") == 0) {
4906 eloop_terminate();
4907 } else {
4908 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
4909 "ignored");
4910 reply_len = -1;
4911 }
4912
4913 send_reply:
4914 if (reply_len < 0) {
4915 os_memcpy(reply, "FAIL\n", 5);
4916 reply_len = 5;
4917 }
4918
4919 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
4920 fromlen) < 0) {
4921 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
4922 strerror(errno));
4923 }
4924 os_free(reply);
4925 }
4926
4927
4928 #ifndef CONFIG_CTRL_IFACE_UDP
hostapd_global_ctrl_iface_path(struct hapd_interfaces * interface)4929 static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface)
4930 {
4931 char *buf;
4932 size_t len;
4933
4934 if (interface->global_iface_path == NULL)
4935 return NULL;
4936
4937 len = os_strlen(interface->global_iface_path) +
4938 os_strlen(interface->global_iface_name) + 2;
4939 buf = os_malloc(len);
4940 if (buf == NULL)
4941 return NULL;
4942
4943 os_snprintf(buf, len, "%s/%s", interface->global_iface_path,
4944 interface->global_iface_name);
4945 buf[len - 1] = '\0';
4946 return buf;
4947 }
4948 #endif /* CONFIG_CTRL_IFACE_UDP */
4949
4950
hostapd_global_ctrl_iface_init(struct hapd_interfaces * interface)4951 int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface)
4952 {
4953 #ifdef CONFIG_CTRL_IFACE_UDP
4954 int port = HOSTAPD_GLOBAL_CTRL_IFACE_PORT;
4955 char p[32] = { 0 };
4956 char *pos;
4957 struct addrinfo hints = { 0 }, *res, *saveres;
4958 int n;
4959
4960 if (interface->global_ctrl_sock > -1) {
4961 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
4962 return 0;
4963 }
4964
4965 if (interface->global_iface_path == NULL)
4966 return 0;
4967
4968 pos = os_strstr(interface->global_iface_path, "udp:");
4969 if (pos) {
4970 pos += 4;
4971 port = atoi(pos);
4972 if (port <= 0) {
4973 wpa_printf(MSG_ERROR, "Invalid global ctrl UDP port");
4974 goto fail;
4975 }
4976 }
4977
4978 os_get_random(interface->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN);
4979
4980 #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE
4981 hints.ai_flags = AI_PASSIVE;
4982 #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
4983
4984 #ifdef CONFIG_CTRL_IFACE_UDP_IPV6
4985 hints.ai_family = AF_INET6;
4986 #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */
4987 hints.ai_family = AF_INET;
4988 #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */
4989 hints.ai_socktype = SOCK_DGRAM;
4990
4991 try_again:
4992 os_snprintf(p, sizeof(p), "%d", port);
4993 n = getaddrinfo(NULL, p, &hints, &res);
4994 if (n) {
4995 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n));
4996 goto fail;
4997 }
4998
4999 saveres = res;
5000 interface->global_ctrl_sock = socket(res->ai_family, res->ai_socktype,
5001 res->ai_protocol);
5002 if (interface->global_ctrl_sock < 0) {
5003 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno));
5004 goto fail;
5005 }
5006
5007 if (bind(interface->global_ctrl_sock, res->ai_addr, res->ai_addrlen) <
5008 0) {
5009 port++;
5010 if ((port - HOSTAPD_GLOBAL_CTRL_IFACE_PORT) <
5011 HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT && !pos)
5012 goto try_again;
5013 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno));
5014 goto fail;
5015 }
5016
5017 freeaddrinfo(saveres);
5018
5019 wpa_printf(MSG_DEBUG, "global ctrl_iface_init UDP port: %d", port);
5020
5021 if (eloop_register_read_sock(interface->global_ctrl_sock,
5022 hostapd_global_ctrl_iface_receive,
5023 interface, NULL) < 0) {
5024 hostapd_global_ctrl_iface_deinit(interface);
5025 return -1;
5026 }
5027
5028 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
5029
5030 return 0;
5031
5032 fail:
5033 if (interface->global_ctrl_sock >= 0)
5034 close(interface->global_ctrl_sock);
5035 return -1;
5036 #else /* CONFIG_CTRL_IFACE_UDP */
5037 struct sockaddr_un addr;
5038 int s = -1;
5039 char *fname = NULL;
5040
5041 if (interface->global_iface_path == NULL) {
5042 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!");
5043 return 0;
5044 }
5045
5046 if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) {
5047 if (errno == EEXIST) {
5048 wpa_printf(MSG_DEBUG, "Using existing control "
5049 "interface directory.");
5050 } else {
5051 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
5052 strerror(errno));
5053 goto fail;
5054 }
5055 } else if (interface->ctrl_iface_group &&
5056 lchown(interface->global_iface_path, -1,
5057 interface->ctrl_iface_group) < 0) {
5058 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s",
5059 strerror(errno));
5060 goto fail;
5061 }
5062
5063 if (os_strlen(interface->global_iface_path) + 1 +
5064 os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path))
5065 goto fail;
5066
5067 s = socket(PF_UNIX, SOCK_DGRAM, 0);
5068 if (s < 0) {
5069 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
5070 goto fail;
5071 }
5072
5073 os_memset(&addr, 0, sizeof(addr));
5074 #ifdef __FreeBSD__
5075 addr.sun_len = sizeof(addr);
5076 #endif /* __FreeBSD__ */
5077 addr.sun_family = AF_UNIX;
5078 fname = hostapd_global_ctrl_iface_path(interface);
5079 if (fname == NULL)
5080 goto fail;
5081 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
5082 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
5083 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
5084 strerror(errno));
5085 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
5086 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
5087 " allow connections - assuming it was left"
5088 "over from forced program termination");
5089 if (unlink(fname) < 0) {
5090 wpa_printf(MSG_ERROR,
5091 "Could not unlink existing ctrl_iface socket '%s': %s",
5092 fname, strerror(errno));
5093 goto fail;
5094 }
5095 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
5096 0) {
5097 wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s",
5098 strerror(errno));
5099 goto fail;
5100 }
5101 wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
5102 "ctrl_iface socket '%s'", fname);
5103 } else {
5104 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
5105 "be in use - cannot override it");
5106 wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
5107 "not used anymore", fname);
5108 os_free(fname);
5109 fname = NULL;
5110 goto fail;
5111 }
5112 }
5113
5114 if (interface->ctrl_iface_group &&
5115 lchown(fname, -1, interface->ctrl_iface_group) < 0) {
5116 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s",
5117 strerror(errno));
5118 goto fail;
5119 }
5120
5121 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
5122 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
5123 strerror(errno));
5124 goto fail;
5125 }
5126 os_free(fname);
5127
5128 interface->global_ctrl_sock = s;
5129 eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive,
5130 interface, NULL);
5131
5132 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
5133
5134 return 0;
5135
5136 fail:
5137 if (s >= 0)
5138 close(s);
5139 if (fname) {
5140 unlink(fname);
5141 os_free(fname);
5142 }
5143 return -1;
5144 #endif /* CONFIG_CTRL_IFACE_UDP */
5145 }
5146
5147
hostapd_global_ctrl_iface_deinit(struct hapd_interfaces * interfaces)5148 void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces)
5149 {
5150 #ifndef CONFIG_CTRL_IFACE_UDP
5151 char *fname = NULL;
5152 #endif /* CONFIG_CTRL_IFACE_UDP */
5153 struct wpa_ctrl_dst *dst, *prev;
5154
5155 if (interfaces->global_ctrl_sock > -1) {
5156 eloop_unregister_read_sock(interfaces->global_ctrl_sock);
5157 close(interfaces->global_ctrl_sock);
5158 interfaces->global_ctrl_sock = -1;
5159 #ifndef CONFIG_CTRL_IFACE_UDP
5160 fname = hostapd_global_ctrl_iface_path(interfaces);
5161 if (fname) {
5162 unlink(fname);
5163 os_free(fname);
5164 }
5165
5166 if (interfaces->global_iface_path &&
5167 rmdir(interfaces->global_iface_path) < 0) {
5168 if (errno == ENOTEMPTY) {
5169 wpa_printf(MSG_DEBUG, "Control interface "
5170 "directory not empty - leaving it "
5171 "behind");
5172 } else {
5173 wpa_printf(MSG_ERROR,
5174 "rmdir[ctrl_interface=%s]: %s",
5175 interfaces->global_iface_path,
5176 strerror(errno));
5177 }
5178 }
5179 #endif /* CONFIG_CTRL_IFACE_UDP */
5180 }
5181
5182 os_free(interfaces->global_iface_path);
5183 interfaces->global_iface_path = NULL;
5184
5185 dl_list_for_each_safe(dst, prev, &interfaces->global_ctrl_dst,
5186 struct wpa_ctrl_dst, list)
5187 os_free(dst);
5188 }
5189
5190
hostapd_ctrl_check_event_enabled(struct wpa_ctrl_dst * dst,const char * buf)5191 static int hostapd_ctrl_check_event_enabled(struct wpa_ctrl_dst *dst,
5192 const char *buf)
5193 {
5194 /* Enable Probe Request events based on explicit request.
5195 * Other events are enabled by default.
5196 */
5197 if (str_starts(buf, RX_PROBE_REQUEST))
5198 return !!(dst->events & WPA_EVENT_RX_PROBE_REQUEST);
5199 return 1;
5200 }
5201
5202
hostapd_ctrl_iface_send_internal(int sock,struct dl_list * ctrl_dst,const char * ifname,int level,const char * buf,size_t len)5203 static void hostapd_ctrl_iface_send_internal(int sock, struct dl_list *ctrl_dst,
5204 const char *ifname, int level,
5205 const char *buf, size_t len)
5206 {
5207 struct wpa_ctrl_dst *dst, *next;
5208 struct msghdr msg;
5209 int idx, res;
5210 struct iovec io[5];
5211 char levelstr[10];
5212
5213 if (sock < 0 || dl_list_empty(ctrl_dst))
5214 return;
5215
5216 res = os_snprintf(levelstr, sizeof(levelstr), "<%d>", level);
5217 if (os_snprintf_error(sizeof(levelstr), res))
5218 return;
5219 idx = 0;
5220 if (ifname) {
5221 io[idx].iov_base = "IFNAME=";
5222 io[idx].iov_len = 7;
5223 idx++;
5224 io[idx].iov_base = (char *) ifname;
5225 io[idx].iov_len = os_strlen(ifname);
5226 idx++;
5227 io[idx].iov_base = " ";
5228 io[idx].iov_len = 1;
5229 idx++;
5230 }
5231 io[idx].iov_base = levelstr;
5232 io[idx].iov_len = os_strlen(levelstr);
5233 idx++;
5234 io[idx].iov_base = (char *) buf;
5235 io[idx].iov_len = len;
5236 idx++;
5237 os_memset(&msg, 0, sizeof(msg));
5238 msg.msg_iov = io;
5239 msg.msg_iovlen = idx;
5240
5241 idx = 0;
5242 dl_list_for_each_safe(dst, next, ctrl_dst, struct wpa_ctrl_dst, list) {
5243 if ((level >= dst->debug_level) &&
5244 hostapd_ctrl_check_event_enabled(dst, buf)) {
5245 sockaddr_print(MSG_DEBUG, "CTRL_IFACE monitor send",
5246 &dst->addr, dst->addrlen);
5247 msg.msg_name = &dst->addr;
5248 msg.msg_namelen = dst->addrlen;
5249 if (sendmsg(sock, &msg, 0) < 0) {
5250 int _errno = errno;
5251 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
5252 "%d - %s",
5253 idx, errno, strerror(errno));
5254 dst->errors++;
5255 if (dst->errors > 10 || _errno == ENOENT) {
5256 ctrl_iface_detach(ctrl_dst,
5257 &dst->addr,
5258 dst->addrlen);
5259 }
5260 } else
5261 dst->errors = 0;
5262 }
5263 idx++;
5264 }
5265 }
5266
5267
hostapd_ctrl_iface_send(struct hostapd_data * hapd,int level,enum wpa_msg_type type,const char * buf,size_t len)5268 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
5269 enum wpa_msg_type type,
5270 const char *buf, size_t len)
5271 {
5272 if (type != WPA_MSG_NO_GLOBAL) {
5273 hostapd_ctrl_iface_send_internal(
5274 hapd->iface->interfaces->global_ctrl_sock,
5275 &hapd->iface->interfaces->global_ctrl_dst,
5276 type != WPA_MSG_PER_INTERFACE ?
5277 NULL : hapd->conf->iface,
5278 level, buf, len);
5279 }
5280
5281 if (type != WPA_MSG_ONLY_GLOBAL) {
5282 hostapd_ctrl_iface_send_internal(
5283 hapd->ctrl_sock, &hapd->ctrl_dst,
5284 NULL, level, buf, len);
5285 }
5286 }
5287
5288 #endif /* CONFIG_NATIVE_WINDOWS */
5289
