1 /*
2 * Control interface for shared AP commands
3 * Copyright (c) 2004-2014, 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 #include "utils/common.h"
12 #include "common/ieee802_11_defs.h"
13 #include "common/sae.h"
14 #include "eapol_auth/eapol_auth_sm.h"
15 #include "fst/fst_ctrl_iface.h"
16 #include "hostapd.h"
17 #include "ieee802_1x.h"
18 #include "wpa_auth.h"
19 #include "ieee802_11.h"
20 #include "sta_info.h"
21 #include "wps_hostapd.h"
22 #include "p2p_hostapd.h"
23 #include "ctrl_iface_ap.h"
24 #include "ap_drv_ops.h"
25 #include "mbo_ap.h"
26
27
hostapd_get_sta_tx_rx(struct hostapd_data * hapd,struct sta_info * sta,char * buf,size_t buflen)28 static int hostapd_get_sta_tx_rx(struct hostapd_data *hapd,
29 struct sta_info *sta,
30 char *buf, size_t buflen)
31 {
32 struct hostap_sta_driver_data data;
33 int ret;
34
35 if (hostapd_drv_read_sta_data(hapd, &data, sta->addr) < 0)
36 return 0;
37
38 ret = os_snprintf(buf, buflen, "rx_packets=%lu\ntx_packets=%lu\n"
39 "rx_bytes=%llu\ntx_bytes=%llu\n",
40 data.rx_packets, data.tx_packets,
41 data.rx_bytes, data.tx_bytes);
42 if (os_snprintf_error(buflen, ret))
43 return 0;
44 return ret;
45 }
46
47
hostapd_get_sta_conn_time(struct sta_info * sta,char * buf,size_t buflen)48 static int hostapd_get_sta_conn_time(struct sta_info *sta,
49 char *buf, size_t buflen)
50 {
51 struct os_reltime age;
52 int ret;
53
54 if (!sta->connected_time.sec)
55 return 0;
56
57 os_reltime_age(&sta->connected_time, &age);
58
59 ret = os_snprintf(buf, buflen, "connected_time=%u\n",
60 (unsigned int) age.sec);
61 if (os_snprintf_error(buflen, ret))
62 return 0;
63 return ret;
64 }
65
66
timeout_next_str(int val)67 static const char * timeout_next_str(int val)
68 {
69 switch (val) {
70 case STA_NULLFUNC:
71 return "NULLFUNC POLL";
72 case STA_DISASSOC:
73 return "DISASSOC";
74 case STA_DEAUTH:
75 return "DEAUTH";
76 case STA_REMOVE:
77 return "REMOVE";
78 case STA_DISASSOC_FROM_CLI:
79 return "DISASSOC_FROM_CLI";
80 }
81
82 return "?";
83 }
84
85
hostapd_ctrl_iface_sta_mib(struct hostapd_data * hapd,struct sta_info * sta,char * buf,size_t buflen)86 static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
87 struct sta_info *sta,
88 char *buf, size_t buflen)
89 {
90 int len, res, ret, i;
91
92 if (!sta)
93 return 0;
94
95 len = 0;
96 ret = os_snprintf(buf + len, buflen - len, MACSTR "\nflags=",
97 MAC2STR(sta->addr));
98 if (os_snprintf_error(buflen - len, ret))
99 return len;
100 len += ret;
101
102 ret = ap_sta_flags_txt(sta->flags, buf + len, buflen - len);
103 if (ret < 0)
104 return len;
105 len += ret;
106
107 ret = os_snprintf(buf + len, buflen - len, "\naid=%d\ncapability=0x%x\n"
108 "listen_interval=%d\nsupported_rates=",
109 sta->aid, sta->capability, sta->listen_interval);
110 if (os_snprintf_error(buflen - len, ret))
111 return len;
112 len += ret;
113
114 for (i = 0; i < sta->supported_rates_len; i++) {
115 ret = os_snprintf(buf + len, buflen - len, "%02x%s",
116 sta->supported_rates[i],
117 i + 1 < sta->supported_rates_len ? " " : "");
118 if (os_snprintf_error(buflen - len, ret))
119 return len;
120 len += ret;
121 }
122
123 ret = os_snprintf(buf + len, buflen - len, "\ntimeout_next=%s\n",
124 timeout_next_str(sta->timeout_next));
125 if (os_snprintf_error(buflen - len, ret))
126 return len;
127 len += ret;
128
129 res = ieee802_11_get_mib_sta(hapd, sta, buf + len, buflen - len);
130 if (res >= 0)
131 len += res;
132 res = wpa_get_mib_sta(sta->wpa_sm, buf + len, buflen - len);
133 if (res >= 0)
134 len += res;
135 res = ieee802_1x_get_mib_sta(hapd, sta, buf + len, buflen - len);
136 if (res >= 0)
137 len += res;
138 res = hostapd_wps_get_mib_sta(hapd, sta->addr, buf + len,
139 buflen - len);
140 if (res >= 0)
141 len += res;
142 res = hostapd_p2p_get_mib_sta(hapd, sta, buf + len, buflen - len);
143 if (res >= 0)
144 len += res;
145
146 len += hostapd_get_sta_tx_rx(hapd, sta, buf + len, buflen - len);
147 len += hostapd_get_sta_conn_time(sta, buf + len, buflen - len);
148
149 #ifdef CONFIG_SAE
150 if (sta->sae && sta->sae->state == SAE_ACCEPTED) {
151 res = os_snprintf(buf + len, buflen - len, "sae_group=%d\n",
152 sta->sae->group);
153 if (!os_snprintf_error(buflen - len, res))
154 len += res;
155 }
156 #endif /* CONFIG_SAE */
157
158 if (sta->vlan_id > 0) {
159 res = os_snprintf(buf + len, buflen - len, "vlan_id=%d\n",
160 sta->vlan_id);
161 if (!os_snprintf_error(buflen - len, res))
162 len += res;
163 }
164
165 res = mbo_ap_get_info(sta, buf + len, buflen - len);
166 if (res >= 0)
167 len += res;
168
169 if (sta->supp_op_classes &&
170 buflen - len > (unsigned) (17 + 2 * sta->supp_op_classes[0])) {
171 len += os_snprintf(buf + len, buflen - len, "supp_op_classes=");
172 len += wpa_snprintf_hex(buf + len, buflen - len,
173 sta->supp_op_classes + 1,
174 sta->supp_op_classes[0]);
175 len += os_snprintf(buf + len, buflen - len, "\n");
176 }
177
178 return len;
179 }
180
181
hostapd_ctrl_iface_sta_first(struct hostapd_data * hapd,char * buf,size_t buflen)182 int hostapd_ctrl_iface_sta_first(struct hostapd_data *hapd,
183 char *buf, size_t buflen)
184 {
185 return hostapd_ctrl_iface_sta_mib(hapd, hapd->sta_list, buf, buflen);
186 }
187
188
hostapd_ctrl_iface_sta(struct hostapd_data * hapd,const char * txtaddr,char * buf,size_t buflen)189 int hostapd_ctrl_iface_sta(struct hostapd_data *hapd, const char *txtaddr,
190 char *buf, size_t buflen)
191 {
192 u8 addr[ETH_ALEN];
193 int ret;
194 const char *pos;
195 struct sta_info *sta;
196
197 if (hwaddr_aton(txtaddr, addr)) {
198 ret = os_snprintf(buf, buflen, "FAIL\n");
199 if (os_snprintf_error(buflen, ret))
200 return 0;
201 return ret;
202 }
203
204 sta = ap_get_sta(hapd, addr);
205 if (sta == NULL)
206 return -1;
207
208 pos = os_strchr(txtaddr, ' ');
209 if (pos) {
210 pos++;
211
212 #ifdef HOSTAPD_DUMP_STATE
213 if (os_strcmp(pos, "eapol") == 0) {
214 if (sta->eapol_sm == NULL)
215 return -1;
216 return eapol_auth_dump_state(sta->eapol_sm, buf,
217 buflen);
218 }
219 #endif /* HOSTAPD_DUMP_STATE */
220
221 return -1;
222 }
223
224 ret = hostapd_ctrl_iface_sta_mib(hapd, sta, buf, buflen);
225 ret += fst_ctrl_iface_mb_info(addr, buf + ret, buflen - ret);
226
227 return ret;
228 }
229
230
hostapd_ctrl_iface_sta_next(struct hostapd_data * hapd,const char * txtaddr,char * buf,size_t buflen)231 int hostapd_ctrl_iface_sta_next(struct hostapd_data *hapd, const char *txtaddr,
232 char *buf, size_t buflen)
233 {
234 u8 addr[ETH_ALEN];
235 struct sta_info *sta;
236 int ret;
237
238 if (hwaddr_aton(txtaddr, addr) ||
239 (sta = ap_get_sta(hapd, addr)) == NULL) {
240 ret = os_snprintf(buf, buflen, "FAIL\n");
241 if (os_snprintf_error(buflen, ret))
242 return 0;
243 return ret;
244 }
245
246 if (!sta->next)
247 return 0;
248
249 return hostapd_ctrl_iface_sta_mib(hapd, sta->next, buf, buflen);
250 }
251
252
253 #ifdef CONFIG_P2P_MANAGER
p2p_manager_disconnect(struct hostapd_data * hapd,u16 stype,u8 minor_reason_code,const u8 * addr)254 static int p2p_manager_disconnect(struct hostapd_data *hapd, u16 stype,
255 u8 minor_reason_code, const u8 *addr)
256 {
257 struct ieee80211_mgmt *mgmt;
258 int ret;
259 u8 *pos;
260
261 if (hapd->driver->send_frame == NULL)
262 return -1;
263
264 mgmt = os_zalloc(sizeof(*mgmt) + 100);
265 if (mgmt == NULL)
266 return -1;
267
268 mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, stype);
269 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "P2P: Disconnect STA " MACSTR
270 " with minor reason code %u (stype=%u (%s))",
271 MAC2STR(addr), minor_reason_code, stype,
272 fc2str(mgmt->frame_control));
273
274 os_memcpy(mgmt->da, addr, ETH_ALEN);
275 os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
276 os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
277 if (stype == WLAN_FC_STYPE_DEAUTH) {
278 mgmt->u.deauth.reason_code =
279 host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
280 pos = (u8 *) (&mgmt->u.deauth.reason_code + 1);
281 } else {
282 mgmt->u.disassoc.reason_code =
283 host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
284 pos = (u8 *) (&mgmt->u.disassoc.reason_code + 1);
285 }
286
287 *pos++ = WLAN_EID_VENDOR_SPECIFIC;
288 *pos++ = 4 + 3 + 1;
289 WPA_PUT_BE32(pos, P2P_IE_VENDOR_TYPE);
290 pos += 4;
291
292 *pos++ = P2P_ATTR_MINOR_REASON_CODE;
293 WPA_PUT_LE16(pos, 1);
294 pos += 2;
295 *pos++ = minor_reason_code;
296
297 ret = hapd->driver->send_frame(hapd->drv_priv, (u8 *) mgmt,
298 pos - (u8 *) mgmt, 1);
299 os_free(mgmt);
300
301 return ret < 0 ? -1 : 0;
302 }
303 #endif /* CONFIG_P2P_MANAGER */
304
305
hostapd_ctrl_iface_deauthenticate(struct hostapd_data * hapd,const char * txtaddr)306 int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
307 const char *txtaddr)
308 {
309 u8 addr[ETH_ALEN];
310 struct sta_info *sta;
311 const char *pos;
312 u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
313
314 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DEAUTHENTICATE %s",
315 txtaddr);
316
317 if (hwaddr_aton(txtaddr, addr))
318 return -1;
319
320 pos = os_strstr(txtaddr, " reason=");
321 if (pos)
322 reason = atoi(pos + 8);
323
324 pos = os_strstr(txtaddr, " test=");
325 if (pos) {
326 struct ieee80211_mgmt mgmt;
327 int encrypt;
328 if (hapd->driver->send_frame == NULL)
329 return -1;
330 pos += 6;
331 encrypt = atoi(pos);
332 os_memset(&mgmt, 0, sizeof(mgmt));
333 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
334 WLAN_FC_STYPE_DEAUTH);
335 os_memcpy(mgmt.da, addr, ETH_ALEN);
336 os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
337 os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
338 mgmt.u.deauth.reason_code = host_to_le16(reason);
339 if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
340 IEEE80211_HDRLEN +
341 sizeof(mgmt.u.deauth),
342 encrypt) < 0)
343 return -1;
344 return 0;
345 }
346
347 #ifdef CONFIG_P2P_MANAGER
348 pos = os_strstr(txtaddr, " p2p=");
349 if (pos) {
350 return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DEAUTH,
351 atoi(pos + 5), addr);
352 }
353 #endif /* CONFIG_P2P_MANAGER */
354
355 hostapd_drv_sta_deauth(hapd, addr, reason);
356 sta = ap_get_sta(hapd, addr);
357 if (sta)
358 ap_sta_deauthenticate(hapd, sta, reason);
359 else if (addr[0] == 0xff)
360 hostapd_free_stas(hapd);
361
362 return 0;
363 }
364
365
hostapd_ctrl_iface_disassociate(struct hostapd_data * hapd,const char * txtaddr)366 int hostapd_ctrl_iface_disassociate(struct hostapd_data *hapd,
367 const char *txtaddr)
368 {
369 u8 addr[ETH_ALEN];
370 struct sta_info *sta;
371 const char *pos;
372 u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
373
374 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DISASSOCIATE %s",
375 txtaddr);
376
377 if (hwaddr_aton(txtaddr, addr))
378 return -1;
379
380 pos = os_strstr(txtaddr, " reason=");
381 if (pos)
382 reason = atoi(pos + 8);
383
384 pos = os_strstr(txtaddr, " test=");
385 if (pos) {
386 struct ieee80211_mgmt mgmt;
387 int encrypt;
388 if (hapd->driver->send_frame == NULL)
389 return -1;
390 pos += 6;
391 encrypt = atoi(pos);
392 os_memset(&mgmt, 0, sizeof(mgmt));
393 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
394 WLAN_FC_STYPE_DISASSOC);
395 os_memcpy(mgmt.da, addr, ETH_ALEN);
396 os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
397 os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
398 mgmt.u.disassoc.reason_code = host_to_le16(reason);
399 if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
400 IEEE80211_HDRLEN +
401 sizeof(mgmt.u.deauth),
402 encrypt) < 0)
403 return -1;
404 return 0;
405 }
406
407 #ifdef CONFIG_P2P_MANAGER
408 pos = os_strstr(txtaddr, " p2p=");
409 if (pos) {
410 return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DISASSOC,
411 atoi(pos + 5), addr);
412 }
413 #endif /* CONFIG_P2P_MANAGER */
414
415 hostapd_drv_sta_disassoc(hapd, addr, reason);
416 sta = ap_get_sta(hapd, addr);
417 if (sta)
418 ap_sta_disassociate(hapd, sta, reason);
419 else if (addr[0] == 0xff)
420 hostapd_free_stas(hapd);
421
422 return 0;
423 }
424
425
hostapd_ctrl_iface_status(struct hostapd_data * hapd,char * buf,size_t buflen)426 int hostapd_ctrl_iface_status(struct hostapd_data *hapd, char *buf,
427 size_t buflen)
428 {
429 struct hostapd_iface *iface = hapd->iface;
430 int len = 0, ret;
431 size_t i;
432
433 ret = os_snprintf(buf + len, buflen - len,
434 "state=%s\n"
435 "phy=%s\n"
436 "freq=%d\n"
437 "num_sta_non_erp=%d\n"
438 "num_sta_no_short_slot_time=%d\n"
439 "num_sta_no_short_preamble=%d\n"
440 "olbc=%d\n"
441 "num_sta_ht_no_gf=%d\n"
442 "num_sta_no_ht=%d\n"
443 "num_sta_ht_20_mhz=%d\n"
444 "num_sta_ht40_intolerant=%d\n"
445 "olbc_ht=%d\n"
446 "ht_op_mode=0x%x\n",
447 hostapd_state_text(iface->state),
448 iface->phy,
449 iface->freq,
450 iface->num_sta_non_erp,
451 iface->num_sta_no_short_slot_time,
452 iface->num_sta_no_short_preamble,
453 iface->olbc,
454 iface->num_sta_ht_no_gf,
455 iface->num_sta_no_ht,
456 iface->num_sta_ht_20mhz,
457 iface->num_sta_ht40_intolerant,
458 iface->olbc_ht,
459 iface->ht_op_mode);
460 if (os_snprintf_error(buflen - len, ret))
461 return len;
462 len += ret;
463
464 if (!iface->cac_started || !iface->dfs_cac_ms) {
465 ret = os_snprintf(buf + len, buflen - len,
466 "cac_time_seconds=%d\n"
467 "cac_time_left_seconds=N/A\n",
468 iface->dfs_cac_ms / 1000);
469 } else {
470 /* CAC started and CAC time set - calculate remaining time */
471 struct os_reltime now;
472 unsigned int left_time;
473
474 os_reltime_age(&iface->dfs_cac_start, &now);
475 left_time = iface->dfs_cac_ms / 1000 - now.sec;
476 ret = os_snprintf(buf + len, buflen - len,
477 "cac_time_seconds=%u\n"
478 "cac_time_left_seconds=%u\n",
479 iface->dfs_cac_ms / 1000,
480 left_time);
481 }
482 if (os_snprintf_error(buflen - len, ret))
483 return len;
484 len += ret;
485
486 ret = os_snprintf(buf + len, buflen - len,
487 "channel=%u\n"
488 "secondary_channel=%d\n"
489 "ieee80211n=%d\n"
490 "ieee80211ac=%d\n"
491 "vht_oper_chwidth=%d\n"
492 "vht_oper_centr_freq_seg0_idx=%d\n"
493 "vht_oper_centr_freq_seg1_idx=%d\n",
494 iface->conf->channel,
495 iface->conf->secondary_channel,
496 iface->conf->ieee80211n,
497 iface->conf->ieee80211ac,
498 iface->conf->vht_oper_chwidth,
499 iface->conf->vht_oper_centr_freq_seg0_idx,
500 iface->conf->vht_oper_centr_freq_seg1_idx);
501 if (os_snprintf_error(buflen - len, ret))
502 return len;
503 len += ret;
504
505 for (i = 0; i < iface->num_bss; i++) {
506 struct hostapd_data *bss = iface->bss[i];
507 ret = os_snprintf(buf + len, buflen - len,
508 "bss[%d]=%s\n"
509 "bssid[%d]=" MACSTR "\n"
510 "ssid[%d]=%s\n"
511 "num_sta[%d]=%d\n",
512 (int) i, bss->conf->iface,
513 (int) i, MAC2STR(bss->own_addr),
514 (int) i,
515 wpa_ssid_txt(bss->conf->ssid.ssid,
516 bss->conf->ssid.ssid_len),
517 (int) i, bss->num_sta);
518 if (os_snprintf_error(buflen - len, ret))
519 return len;
520 len += ret;
521 }
522
523 return len;
524 }
525
526
hostapd_parse_csa_settings(const char * pos,struct csa_settings * settings)527 int hostapd_parse_csa_settings(const char *pos,
528 struct csa_settings *settings)
529 {
530 char *end;
531
532 os_memset(settings, 0, sizeof(*settings));
533 settings->cs_count = strtol(pos, &end, 10);
534 if (pos == end) {
535 wpa_printf(MSG_ERROR, "chanswitch: invalid cs_count provided");
536 return -1;
537 }
538
539 settings->freq_params.freq = atoi(end);
540 if (settings->freq_params.freq == 0) {
541 wpa_printf(MSG_ERROR, "chanswitch: invalid freq provided");
542 return -1;
543 }
544
545 #define SET_CSA_SETTING(str) \
546 do { \
547 const char *pos2 = os_strstr(pos, " " #str "="); \
548 if (pos2) { \
549 pos2 += sizeof(" " #str "=") - 1; \
550 settings->freq_params.str = atoi(pos2); \
551 } \
552 } while (0)
553
554 SET_CSA_SETTING(center_freq1);
555 SET_CSA_SETTING(center_freq2);
556 SET_CSA_SETTING(bandwidth);
557 SET_CSA_SETTING(sec_channel_offset);
558 settings->freq_params.ht_enabled = !!os_strstr(pos, " ht");
559 settings->freq_params.vht_enabled = !!os_strstr(pos, " vht");
560 settings->block_tx = !!os_strstr(pos, " blocktx");
561 #undef SET_CSA_SETTING
562
563 return 0;
564 }
565
566
hostapd_ctrl_iface_stop_ap(struct hostapd_data * hapd)567 int hostapd_ctrl_iface_stop_ap(struct hostapd_data *hapd)
568 {
569 return hostapd_drv_stop_ap(hapd);
570 }
571
572
hostapd_ctrl_iface_pmksa_list(struct hostapd_data * hapd,char * buf,size_t len)573 int hostapd_ctrl_iface_pmksa_list(struct hostapd_data *hapd, char *buf,
574 size_t len)
575 {
576 return wpa_auth_pmksa_list(hapd->wpa_auth, buf, len);
577 }
578
579
hostapd_ctrl_iface_pmksa_flush(struct hostapd_data * hapd)580 void hostapd_ctrl_iface_pmksa_flush(struct hostapd_data *hapd)
581 {
582 wpa_auth_pmksa_flush(hapd->wpa_auth);
583 }
584