Line data Source code
1 : /*
2 : * hostapd / Initialization and configuration
3 : * Copyright (c) 2002-2014, 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 "utils/eloop.h"
13 : #include "common/ieee802_11_defs.h"
14 : #include "common/wpa_ctrl.h"
15 : #include "common/hw_features_common.h"
16 : #include "radius/radius_client.h"
17 : #include "radius/radius_das.h"
18 : #include "eap_server/tncs.h"
19 : #include "eapol_auth/eapol_auth_sm.h"
20 : #include "eapol_auth/eapol_auth_sm_i.h"
21 : #include "fst/fst.h"
22 : #include "hostapd.h"
23 : #include "authsrv.h"
24 : #include "sta_info.h"
25 : #include "accounting.h"
26 : #include "ap_list.h"
27 : #include "beacon.h"
28 : #include "iapp.h"
29 : #include "ieee802_1x.h"
30 : #include "ieee802_11_auth.h"
31 : #include "vlan_init.h"
32 : #include "wpa_auth.h"
33 : #include "wps_hostapd.h"
34 : #include "hw_features.h"
35 : #include "wpa_auth_glue.h"
36 : #include "ap_drv_ops.h"
37 : #include "ap_config.h"
38 : #include "p2p_hostapd.h"
39 : #include "gas_serv.h"
40 : #include "dfs.h"
41 : #include "ieee802_11.h"
42 : #include "bss_load.h"
43 : #include "x_snoop.h"
44 : #include "dhcp_snoop.h"
45 : #include "ndisc_snoop.h"
46 : #include "neighbor_db.h"
47 : #include "rrm.h"
48 :
49 :
50 : static int hostapd_flush_old_stations(struct hostapd_data *hapd, u16 reason);
51 : static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
52 : static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd);
53 : static int setup_interface2(struct hostapd_iface *iface);
54 : static void channel_list_update_timeout(void *eloop_ctx, void *timeout_ctx);
55 :
56 :
57 6769 : int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
58 : int (*cb)(struct hostapd_iface *iface,
59 : void *ctx), void *ctx)
60 : {
61 : size_t i;
62 : int ret;
63 :
64 14793 : for (i = 0; i < interfaces->count; i++) {
65 8300 : ret = cb(interfaces->iface[i], ctx);
66 8300 : if (ret)
67 276 : return ret;
68 : }
69 :
70 6493 : return 0;
71 : }
72 :
73 :
74 21 : static void hostapd_reload_bss(struct hostapd_data *hapd)
75 : {
76 : struct hostapd_ssid *ssid;
77 :
78 : #ifndef CONFIG_NO_RADIUS
79 21 : radius_client_reconfig(hapd->radius, hapd->conf->radius);
80 : #endif /* CONFIG_NO_RADIUS */
81 :
82 21 : ssid = &hapd->conf->ssid;
83 21 : if (!ssid->wpa_psk_set && ssid->wpa_psk && !ssid->wpa_psk->next &&
84 3 : ssid->wpa_passphrase_set && ssid->wpa_passphrase) {
85 : /*
86 : * Force PSK to be derived again since SSID or passphrase may
87 : * have changed.
88 : */
89 3 : hostapd_config_clear_wpa_psk(&hapd->conf->ssid.wpa_psk);
90 : }
91 21 : if (hostapd_setup_wpa_psk(hapd->conf)) {
92 0 : wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
93 : "after reloading configuration");
94 : }
95 :
96 21 : if (hapd->conf->ieee802_1x || hapd->conf->wpa)
97 17 : hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1);
98 : else
99 4 : hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
100 :
101 21 : if ((hapd->conf->wpa || hapd->conf->osen) && hapd->wpa_auth == NULL) {
102 15 : hostapd_setup_wpa(hapd);
103 30 : if (hapd->wpa_auth)
104 15 : wpa_init_keys(hapd->wpa_auth);
105 6 : } else if (hapd->conf->wpa) {
106 : const u8 *wpa_ie;
107 : size_t wpa_ie_len;
108 2 : hostapd_reconfig_wpa(hapd);
109 2 : wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
110 2 : if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len))
111 0 : wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
112 : "the kernel driver.");
113 4 : } else if (hapd->wpa_auth) {
114 3 : wpa_deinit(hapd->wpa_auth);
115 3 : hapd->wpa_auth = NULL;
116 3 : hostapd_set_privacy(hapd, 0);
117 3 : hostapd_setup_encryption(hapd->conf->iface, hapd);
118 3 : hostapd_set_generic_elem(hapd, (u8 *) "", 0);
119 : }
120 :
121 21 : ieee802_11_set_beacon(hapd);
122 21 : hostapd_update_wps(hapd);
123 :
124 42 : if (hapd->conf->ssid.ssid_set &&
125 21 : hostapd_set_ssid(hapd, hapd->conf->ssid.ssid,
126 21 : hapd->conf->ssid.ssid_len)) {
127 0 : wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
128 : /* try to continue */
129 : }
130 21 : wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
131 21 : }
132 :
133 :
134 21 : static void hostapd_clear_old(struct hostapd_iface *iface)
135 : {
136 : size_t j;
137 :
138 : /*
139 : * Deauthenticate all stations since the new configuration may not
140 : * allow them to use the BSS anymore.
141 : */
142 42 : for (j = 0; j < iface->num_bss; j++) {
143 21 : hostapd_flush_old_stations(iface->bss[j],
144 : WLAN_REASON_PREV_AUTH_NOT_VALID);
145 21 : hostapd_broadcast_wep_clear(iface->bss[j]);
146 :
147 : #ifndef CONFIG_NO_RADIUS
148 : /* TODO: update dynamic data based on changed configuration
149 : * items (e.g., open/close sockets, etc.) */
150 21 : radius_client_flush(iface->bss[j]->radius, 0);
151 : #endif /* CONFIG_NO_RADIUS */
152 : }
153 21 : }
154 :
155 :
156 19 : int hostapd_reload_config(struct hostapd_iface *iface)
157 : {
158 19 : struct hostapd_data *hapd = iface->bss[0];
159 : struct hostapd_config *newconf, *oldconf;
160 : size_t j;
161 :
162 19 : if (iface->config_fname == NULL) {
163 : /* Only in-memory config in use - assume it has been updated */
164 18 : hostapd_clear_old(iface);
165 36 : for (j = 0; j < iface->num_bss; j++)
166 18 : hostapd_reload_bss(iface->bss[j]);
167 18 : return 0;
168 : }
169 :
170 2 : if (iface->interfaces == NULL ||
171 1 : iface->interfaces->config_read_cb == NULL)
172 0 : return -1;
173 1 : newconf = iface->interfaces->config_read_cb(iface->config_fname);
174 1 : if (newconf == NULL)
175 0 : return -1;
176 :
177 1 : hostapd_clear_old(iface);
178 :
179 1 : oldconf = hapd->iconf;
180 1 : iface->conf = newconf;
181 :
182 2 : for (j = 0; j < iface->num_bss; j++) {
183 1 : hapd = iface->bss[j];
184 1 : hapd->iconf = newconf;
185 1 : hapd->iconf->channel = oldconf->channel;
186 1 : hapd->iconf->acs = oldconf->acs;
187 1 : hapd->iconf->secondary_channel = oldconf->secondary_channel;
188 1 : hapd->iconf->ieee80211n = oldconf->ieee80211n;
189 1 : hapd->iconf->ieee80211ac = oldconf->ieee80211ac;
190 1 : hapd->iconf->ht_capab = oldconf->ht_capab;
191 1 : hapd->iconf->vht_capab = oldconf->vht_capab;
192 1 : hapd->iconf->vht_oper_chwidth = oldconf->vht_oper_chwidth;
193 2 : hapd->iconf->vht_oper_centr_freq_seg0_idx =
194 1 : oldconf->vht_oper_centr_freq_seg0_idx;
195 2 : hapd->iconf->vht_oper_centr_freq_seg1_idx =
196 1 : oldconf->vht_oper_centr_freq_seg1_idx;
197 1 : hapd->conf = newconf->bss[j];
198 1 : hostapd_reload_bss(hapd);
199 : }
200 :
201 1 : hostapd_config_free(oldconf);
202 :
203 :
204 1 : return 0;
205 : }
206 :
207 :
208 2928 : static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
209 : const char *ifname)
210 : {
211 : int i;
212 :
213 2928 : if (!ifname)
214 2932 : return;
215 14620 : for (i = 0; i < NUM_WEP_KEYS; i++) {
216 11696 : if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
217 : 0, NULL, 0, NULL, 0)) {
218 12 : wpa_printf(MSG_DEBUG, "Failed to clear default "
219 : "encryption keys (ifname=%s keyidx=%d)",
220 : ifname, i);
221 : }
222 : }
223 : #ifdef CONFIG_IEEE80211W
224 2924 : if (hapd->conf->ieee80211w) {
225 762 : for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
226 508 : if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE,
227 : NULL, i, 0, NULL,
228 : 0, NULL, 0)) {
229 0 : wpa_printf(MSG_DEBUG, "Failed to clear "
230 : "default mgmt encryption keys "
231 : "(ifname=%s keyidx=%d)", ifname, i);
232 : }
233 : }
234 : }
235 : #endif /* CONFIG_IEEE80211W */
236 : }
237 :
238 :
239 2928 : static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
240 : {
241 2928 : hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
242 2928 : return 0;
243 : }
244 :
245 :
246 2662 : static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
247 : {
248 2662 : int errors = 0, idx;
249 2662 : struct hostapd_ssid *ssid = &hapd->conf->ssid;
250 :
251 2662 : idx = ssid->wep.idx;
252 2668 : if (ssid->wep.default_len &&
253 12 : hostapd_drv_set_key(hapd->conf->iface,
254 : hapd, WPA_ALG_WEP, broadcast_ether_addr, idx,
255 6 : 1, NULL, 0, ssid->wep.key[idx],
256 : ssid->wep.len[idx])) {
257 6 : wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
258 6 : errors++;
259 : }
260 :
261 2662 : return errors;
262 : }
263 :
264 :
265 2937 : static void hostapd_free_hapd_data(struct hostapd_data *hapd)
266 : {
267 2937 : os_free(hapd->probereq_cb);
268 2937 : hapd->probereq_cb = NULL;
269 2937 : hapd->num_probereq_cb = 0;
270 :
271 : #ifdef CONFIG_P2P
272 626 : wpabuf_free(hapd->p2p_beacon_ie);
273 626 : hapd->p2p_beacon_ie = NULL;
274 626 : wpabuf_free(hapd->p2p_probe_resp_ie);
275 626 : hapd->p2p_probe_resp_ie = NULL;
276 : #endif /* CONFIG_P2P */
277 :
278 2937 : if (!hapd->started) {
279 278 : wpa_printf(MSG_ERROR, "%s: Interface %s wasn't started",
280 278 : __func__, hapd->conf->iface);
281 3215 : return;
282 : }
283 2659 : hapd->started = 0;
284 :
285 2659 : wpa_printf(MSG_DEBUG, "%s(%s)", __func__, hapd->conf->iface);
286 2659 : iapp_deinit(hapd->iapp);
287 2659 : hapd->iapp = NULL;
288 2659 : accounting_deinit(hapd);
289 2659 : hostapd_deinit_wpa(hapd);
290 2659 : vlan_deinit(hapd);
291 2659 : hostapd_acl_deinit(hapd);
292 : #ifndef CONFIG_NO_RADIUS
293 2046 : radius_client_deinit(hapd->radius);
294 2046 : hapd->radius = NULL;
295 2046 : radius_das_deinit(hapd->radius_das);
296 2046 : hapd->radius_das = NULL;
297 : #endif /* CONFIG_NO_RADIUS */
298 :
299 2659 : hostapd_deinit_wps(hapd);
300 :
301 2659 : authsrv_deinit(hapd);
302 :
303 2659 : if (hapd->interface_added) {
304 44 : hapd->interface_added = 0;
305 44 : if (hostapd_if_remove(hapd, WPA_IF_AP_BSS, hapd->conf->iface)) {
306 0 : wpa_printf(MSG_WARNING,
307 : "Failed to remove BSS interface %s",
308 0 : hapd->conf->iface);
309 0 : hapd->interface_added = 1;
310 : } else {
311 : /*
312 : * Since this was a dynamically added interface, the
313 : * driver wrapper may have removed its internal instance
314 : * and hapd->drv_priv is not valid anymore.
315 : */
316 44 : hapd->drv_priv = NULL;
317 : }
318 : }
319 :
320 2659 : wpabuf_free(hapd->time_adv);
321 :
322 : #ifdef CONFIG_INTERWORKING
323 2659 : gas_serv_deinit(hapd);
324 : #endif /* CONFIG_INTERWORKING */
325 :
326 2659 : bss_load_update_deinit(hapd);
327 2659 : ndisc_snoop_deinit(hapd);
328 2659 : dhcp_snoop_deinit(hapd);
329 2659 : x_snoop_deinit(hapd);
330 :
331 : #ifdef CONFIG_SQLITE
332 2046 : bin_clear_free(hapd->tmp_eap_user.identity,
333 : hapd->tmp_eap_user.identity_len);
334 2046 : bin_clear_free(hapd->tmp_eap_user.password,
335 : hapd->tmp_eap_user.password_len);
336 : #endif /* CONFIG_SQLITE */
337 :
338 : #ifdef CONFIG_MESH
339 613 : wpabuf_free(hapd->mesh_pending_auth);
340 613 : hapd->mesh_pending_auth = NULL;
341 : #endif /* CONFIG_MESH */
342 :
343 2659 : hostapd_clean_rrm(hapd);
344 : }
345 :
346 :
347 : /**
348 : * hostapd_cleanup - Per-BSS cleanup (deinitialization)
349 : * @hapd: Pointer to BSS data
350 : *
351 : * This function is used to free all per-BSS data structures and resources.
352 : * Most of the modules that are initialized in hostapd_setup_bss() are
353 : * deinitialized here.
354 : */
355 2728 : static void hostapd_cleanup(struct hostapd_data *hapd)
356 : {
357 2728 : wpa_printf(MSG_DEBUG, "%s(hapd=%p (%s))", __func__, hapd,
358 2728 : hapd->conf->iface);
359 4831 : if (hapd->iface->interfaces &&
360 2103 : hapd->iface->interfaces->ctrl_iface_deinit)
361 2103 : hapd->iface->interfaces->ctrl_iface_deinit(hapd);
362 2728 : hostapd_free_hapd_data(hapd);
363 2728 : }
364 :
365 :
366 2908 : static void sta_track_deinit(struct hostapd_iface *iface)
367 : {
368 : struct hostapd_sta_info *info;
369 :
370 2908 : if (!iface->num_sta_seen)
371 5808 : return;
372 :
373 27 : while ((info = dl_list_first(&iface->sta_seen, struct hostapd_sta_info,
374 : list))) {
375 11 : dl_list_del(&info->list);
376 11 : iface->num_sta_seen--;
377 11 : sta_track_del(info);
378 : }
379 : }
380 :
381 :
382 2908 : static void hostapd_cleanup_iface_partial(struct hostapd_iface *iface)
383 : {
384 2908 : wpa_printf(MSG_DEBUG, "%s(%p)", __func__, iface);
385 : #ifdef CONFIG_IEEE80211N
386 : #ifdef NEED_AP_MLME
387 2908 : hostapd_stop_setup_timers(iface);
388 : #endif /* NEED_AP_MLME */
389 : #endif /* CONFIG_IEEE80211N */
390 2908 : hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
391 2908 : iface->hw_features = NULL;
392 2908 : os_free(iface->current_rates);
393 2908 : iface->current_rates = NULL;
394 2908 : os_free(iface->basic_rates);
395 2908 : iface->basic_rates = NULL;
396 2908 : ap_list_deinit(iface);
397 2908 : sta_track_deinit(iface);
398 2908 : }
399 :
400 :
401 : /**
402 : * hostapd_cleanup_iface - Complete per-interface cleanup
403 : * @iface: Pointer to interface data
404 : *
405 : * This function is called after per-BSS data structures are deinitialized
406 : * with hostapd_cleanup().
407 : */
408 2716 : static void hostapd_cleanup_iface(struct hostapd_iface *iface)
409 : {
410 2716 : wpa_printf(MSG_DEBUG, "%s(%p)", __func__, iface);
411 2716 : eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
412 :
413 2716 : hostapd_cleanup_iface_partial(iface);
414 2716 : hostapd_config_free(iface->conf);
415 2716 : iface->conf = NULL;
416 :
417 2716 : os_free(iface->config_fname);
418 2716 : os_free(iface->bss);
419 2716 : wpa_printf(MSG_DEBUG, "%s: free iface=%p", __func__, iface);
420 2716 : os_free(iface);
421 2716 : }
422 :
423 :
424 2929 : static void hostapd_clear_wep(struct hostapd_data *hapd)
425 : {
426 2929 : if (hapd->drv_priv && !hapd->iface->driver_ap_teardown) {
427 248 : hostapd_set_privacy(hapd, 0);
428 248 : hostapd_broadcast_wep_clear(hapd);
429 : }
430 2929 : }
431 :
432 :
433 2662 : static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
434 : {
435 : int i;
436 :
437 2662 : hostapd_broadcast_wep_set(hapd);
438 :
439 2662 : if (hapd->conf->ssid.wep.default_len) {
440 6 : hostapd_set_privacy(hapd, 1);
441 6 : return 0;
442 : }
443 :
444 : /*
445 : * When IEEE 802.1X is not enabled, the driver may need to know how to
446 : * set authentication algorithms for static WEP.
447 : */
448 2656 : hostapd_drv_set_authmode(hapd, hapd->conf->auth_algs);
449 :
450 13280 : for (i = 0; i < 4; i++) {
451 10640 : if (hapd->conf->ssid.wep.key[i] &&
452 32 : hostapd_drv_set_key(iface, hapd, WPA_ALG_WEP, NULL, i,
453 16 : i == hapd->conf->ssid.wep.idx, NULL, 0,
454 16 : hapd->conf->ssid.wep.key[i],
455 16 : hapd->conf->ssid.wep.len[i])) {
456 0 : wpa_printf(MSG_WARNING, "Could not set WEP "
457 : "encryption.");
458 0 : return -1;
459 : }
460 10640 : if (hapd->conf->ssid.wep.key[i] &&
461 16 : i == hapd->conf->ssid.wep.idx)
462 14 : hostapd_set_privacy(hapd, 1);
463 : }
464 :
465 2656 : return 0;
466 : }
467 :
468 :
469 5171 : static int hostapd_flush_old_stations(struct hostapd_data *hapd, u16 reason)
470 : {
471 5171 : int ret = 0;
472 : u8 addr[ETH_ALEN];
473 :
474 5171 : if (hostapd_drv_none(hapd) || hapd->drv_priv == NULL)
475 271 : return 0;
476 :
477 4900 : if (!hapd->iface->driver_ap_teardown) {
478 2466 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
479 : "Flushing old station entries");
480 :
481 2466 : if (hostapd_flush(hapd)) {
482 188 : wpa_msg(hapd->msg_ctx, MSG_WARNING,
483 : "Could not connect to kernel driver");
484 188 : ret = -1;
485 : }
486 : }
487 4900 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "Deauthenticate all stations");
488 4900 : os_memset(addr, 0xff, ETH_ALEN);
489 4900 : hostapd_drv_sta_deauth(hapd, addr, reason);
490 4900 : hostapd_free_stas(hapd);
491 :
492 4900 : return ret;
493 : }
494 :
495 :
496 2929 : static void hostapd_bss_deinit_no_free(struct hostapd_data *hapd)
497 : {
498 2929 : hostapd_free_stas(hapd);
499 2929 : hostapd_flush_old_stations(hapd, WLAN_REASON_DEAUTH_LEAVING);
500 2929 : hostapd_clear_wep(hapd);
501 2929 : }
502 :
503 :
504 : /**
505 : * hostapd_validate_bssid_configuration - Validate BSSID configuration
506 : * @iface: Pointer to interface data
507 : * Returns: 0 on success, -1 on failure
508 : *
509 : * This function is used to validate that the configured BSSIDs are valid.
510 : */
511 2630 : static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
512 : {
513 2630 : u8 mask[ETH_ALEN] = { 0 };
514 2630 : struct hostapd_data *hapd = iface->bss[0];
515 2630 : unsigned int i = iface->conf->num_bss, bits = 0, j;
516 2630 : int auto_addr = 0;
517 :
518 2630 : if (hostapd_drv_none(hapd))
519 12 : return 0;
520 :
521 2618 : if (iface->conf->use_driver_iface_addr)
522 0 : return 0;
523 :
524 : /* Generate BSSID mask that is large enough to cover the BSSIDs. */
525 :
526 : /* Determine the bits necessary to cover the number of BSSIDs. */
527 2631 : for (i--; i; i >>= 1)
528 13 : bits++;
529 :
530 : /* Determine the bits necessary to any configured BSSIDs,
531 : if they are higher than the number of BSSIDs. */
532 5249 : for (j = 0; j < iface->conf->num_bss; j++) {
533 2631 : if (is_zero_ether_addr(iface->conf->bss[j]->bssid)) {
534 2574 : if (j)
535 4 : auto_addr++;
536 2574 : continue;
537 : }
538 :
539 399 : for (i = 0; i < ETH_ALEN; i++) {
540 684 : mask[i] |=
541 342 : iface->conf->bss[j]->bssid[i] ^
542 342 : hapd->own_addr[i];
543 : }
544 : }
545 :
546 2618 : if (!auto_addr)
547 2614 : goto skip_mask_ext;
548 :
549 4 : for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
550 : ;
551 4 : j = 0;
552 4 : if (i < ETH_ALEN) {
553 0 : j = (5 - i) * 8;
554 :
555 0 : while (mask[i] != 0) {
556 0 : mask[i] >>= 1;
557 0 : j++;
558 : }
559 : }
560 :
561 4 : if (bits < j)
562 0 : bits = j;
563 :
564 4 : if (bits > 40) {
565 0 : wpa_printf(MSG_ERROR, "Too many bits in the BSSID mask (%u)",
566 : bits);
567 0 : return -1;
568 : }
569 :
570 4 : os_memset(mask, 0xff, ETH_ALEN);
571 4 : j = bits / 8;
572 4 : for (i = 5; i > 5 - j; i--)
573 0 : mask[i] = 0;
574 4 : j = bits % 8;
575 12 : while (j--)
576 4 : mask[i] <<= 1;
577 :
578 : skip_mask_ext:
579 18326 : wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
580 18326 : (unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
581 :
582 2618 : if (!auto_addr)
583 2614 : return 0;
584 :
585 28 : for (i = 0; i < ETH_ALEN; i++) {
586 24 : if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
587 0 : wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
588 : " for start address " MACSTR ".",
589 0 : MAC2STR(mask), MAC2STR(hapd->own_addr));
590 0 : wpa_printf(MSG_ERROR, "Start address must be the "
591 : "first address in the block (i.e., addr "
592 : "AND mask == addr).");
593 0 : return -1;
594 : }
595 : }
596 :
597 4 : return 0;
598 : }
599 :
600 :
601 0 : static int mac_in_conf(struct hostapd_config *conf, const void *a)
602 : {
603 : size_t i;
604 :
605 0 : for (i = 0; i < conf->num_bss; i++) {
606 0 : if (hostapd_mac_comp(conf->bss[i]->bssid, a) == 0) {
607 0 : return 1;
608 : }
609 : }
610 :
611 0 : return 0;
612 : }
613 :
614 :
615 : #ifndef CONFIG_NO_RADIUS
616 :
617 22 : static int hostapd_das_nas_mismatch(struct hostapd_data *hapd,
618 : struct radius_das_attrs *attr)
619 : {
620 33 : if (attr->nas_identifier &&
621 22 : (!hapd->conf->nas_identifier ||
622 11 : os_strlen(hapd->conf->nas_identifier) !=
623 21 : attr->nas_identifier_len ||
624 10 : os_memcmp(hapd->conf->nas_identifier, attr->nas_identifier,
625 : attr->nas_identifier_len) != 0)) {
626 1 : wpa_printf(MSG_DEBUG, "RADIUS DAS: NAS-Identifier mismatch");
627 1 : return 1;
628 : }
629 :
630 30 : if (attr->nas_ip_addr &&
631 18 : (hapd->conf->own_ip_addr.af != AF_INET ||
632 9 : os_memcmp(&hapd->conf->own_ip_addr.u.v4, attr->nas_ip_addr, 4) !=
633 : 0)) {
634 1 : wpa_printf(MSG_DEBUG, "RADIUS DAS: NAS-IP-Address mismatch");
635 1 : return 1;
636 : }
637 :
638 : #ifdef CONFIG_IPV6
639 20 : if (attr->nas_ipv6_addr &&
640 0 : (hapd->conf->own_ip_addr.af != AF_INET6 ||
641 0 : os_memcmp(&hapd->conf->own_ip_addr.u.v6, attr->nas_ipv6_addr, 16)
642 : != 0)) {
643 0 : wpa_printf(MSG_DEBUG, "RADIUS DAS: NAS-IPv6-Address mismatch");
644 0 : return 1;
645 : }
646 : #endif /* CONFIG_IPV6 */
647 :
648 20 : return 0;
649 : }
650 :
651 :
652 20 : static struct sta_info * hostapd_das_find_sta(struct hostapd_data *hapd,
653 : struct radius_das_attrs *attr,
654 : int *multi)
655 : {
656 : struct sta_info *selected, *sta;
657 : char buf[128];
658 20 : int num_attr = 0;
659 : int count;
660 :
661 20 : *multi = 0;
662 :
663 43 : for (sta = hapd->sta_list; sta; sta = sta->next)
664 23 : sta->radius_das_match = 1;
665 :
666 20 : if (attr->sta_addr) {
667 6 : num_attr++;
668 6 : sta = ap_get_sta(hapd, attr->sta_addr);
669 6 : if (!sta) {
670 3 : wpa_printf(MSG_DEBUG,
671 : "RADIUS DAS: No Calling-Station-Id match");
672 3 : return NULL;
673 : }
674 :
675 3 : selected = sta;
676 8 : for (sta = hapd->sta_list; sta; sta = sta->next) {
677 5 : if (sta != selected)
678 2 : sta->radius_das_match = 0;
679 : }
680 3 : wpa_printf(MSG_DEBUG, "RADIUS DAS: Calling-Station-Id match");
681 : }
682 :
683 17 : if (attr->acct_session_id) {
684 3 : num_attr++;
685 3 : if (attr->acct_session_id_len != 16) {
686 2 : wpa_printf(MSG_DEBUG,
687 : "RADIUS DAS: Acct-Session-Id cannot match");
688 2 : return NULL;
689 : }
690 1 : count = 0;
691 :
692 2 : for (sta = hapd->sta_list; sta; sta = sta->next) {
693 1 : if (!sta->radius_das_match)
694 0 : continue;
695 1 : os_snprintf(buf, sizeof(buf), "%016llX",
696 1 : (unsigned long long) sta->acct_session_id);
697 1 : if (os_memcmp(attr->acct_session_id, buf, 16) != 0)
698 0 : sta->radius_das_match = 0;
699 : else
700 1 : count++;
701 : }
702 :
703 1 : if (count == 0) {
704 0 : wpa_printf(MSG_DEBUG,
705 : "RADIUS DAS: No matches remaining after Acct-Session-Id check");
706 0 : return NULL;
707 : }
708 1 : wpa_printf(MSG_DEBUG, "RADIUS DAS: Acct-Session-Id match");
709 : }
710 :
711 15 : if (attr->acct_multi_session_id) {
712 4 : num_attr++;
713 4 : if (attr->acct_multi_session_id_len != 16) {
714 2 : wpa_printf(MSG_DEBUG,
715 : "RADIUS DAS: Acct-Multi-Session-Id cannot match");
716 2 : return NULL;
717 : }
718 2 : count = 0;
719 :
720 5 : for (sta = hapd->sta_list; sta; sta = sta->next) {
721 3 : if (!sta->radius_das_match)
722 0 : continue;
723 6 : if (!sta->eapol_sm ||
724 3 : !sta->eapol_sm->acct_multi_session_id) {
725 0 : sta->radius_das_match = 0;
726 0 : continue;
727 : }
728 3 : os_snprintf(buf, sizeof(buf), "%016llX",
729 : (unsigned long long)
730 3 : sta->eapol_sm->acct_multi_session_id);
731 3 : if (os_memcmp(attr->acct_multi_session_id, buf, 16) !=
732 : 0)
733 2 : sta->radius_das_match = 0;
734 : else
735 1 : count++;
736 : }
737 :
738 2 : if (count == 0) {
739 1 : wpa_printf(MSG_DEBUG,
740 : "RADIUS DAS: No matches remaining after Acct-Multi-Session-Id check");
741 1 : return NULL;
742 : }
743 1 : wpa_printf(MSG_DEBUG,
744 : "RADIUS DAS: Acct-Multi-Session-Id match");
745 : }
746 :
747 12 : if (attr->cui) {
748 3 : num_attr++;
749 3 : count = 0;
750 :
751 6 : for (sta = hapd->sta_list; sta; sta = sta->next) {
752 : struct wpabuf *cui;
753 :
754 3 : if (!sta->radius_das_match)
755 0 : continue;
756 3 : cui = ieee802_1x_get_radius_cui(sta->eapol_sm);
757 4 : if (!cui || wpabuf_len(cui) != attr->cui_len ||
758 1 : os_memcmp(wpabuf_head(cui), attr->cui,
759 : attr->cui_len) != 0)
760 2 : sta->radius_das_match = 0;
761 : else
762 1 : count++;
763 : }
764 :
765 3 : if (count == 0) {
766 2 : wpa_printf(MSG_DEBUG,
767 : "RADIUS DAS: No matches remaining after Chargeable-User-Identity check");
768 2 : return NULL;
769 : }
770 1 : wpa_printf(MSG_DEBUG,
771 : "RADIUS DAS: Chargeable-User-Identity match");
772 : }
773 :
774 10 : if (attr->user_name) {
775 5 : num_attr++;
776 5 : count = 0;
777 :
778 14 : for (sta = hapd->sta_list; sta; sta = sta->next) {
779 : u8 *identity;
780 : size_t identity_len;
781 :
782 9 : if (!sta->radius_das_match)
783 2 : continue;
784 7 : identity = ieee802_1x_get_identity(sta->eapol_sm,
785 : &identity_len);
786 14 : if (!identity ||
787 11 : identity_len != attr->user_name_len ||
788 4 : os_memcmp(identity, attr->user_name, identity_len)
789 : != 0)
790 3 : sta->radius_das_match = 0;
791 : else
792 4 : count++;
793 : }
794 :
795 5 : if (count == 0) {
796 2 : wpa_printf(MSG_DEBUG,
797 : "RADIUS DAS: No matches remaining after User-Name check");
798 2 : return NULL;
799 : }
800 3 : wpa_printf(MSG_DEBUG,
801 : "RADIUS DAS: User-Name match");
802 : }
803 :
804 8 : if (num_attr == 0) {
805 : /*
806 : * In theory, we could match all current associations, but it
807 : * seems safer to just reject requests that do not include any
808 : * session identification attributes.
809 : */
810 1 : wpa_printf(MSG_DEBUG,
811 : "RADIUS DAS: No session identification attributes included");
812 1 : return NULL;
813 : }
814 :
815 7 : selected = NULL;
816 18 : for (sta = hapd->sta_list; sta; sta = sta->next) {
817 12 : if (sta->radius_das_match) {
818 8 : if (selected) {
819 1 : *multi = 1;
820 1 : return NULL;
821 : }
822 7 : selected = sta;
823 : }
824 : }
825 :
826 6 : return selected;
827 : }
828 :
829 :
830 13 : static int hostapd_das_disconnect_pmksa(struct hostapd_data *hapd,
831 : struct radius_das_attrs *attr)
832 : {
833 13 : if (!hapd->wpa_auth)
834 0 : return -1;
835 13 : return wpa_auth_radius_das_disconnect_pmksa(hapd->wpa_auth, attr);
836 : }
837 :
838 :
839 : static enum radius_das_res
840 22 : hostapd_das_disconnect(void *ctx, struct radius_das_attrs *attr)
841 : {
842 22 : struct hostapd_data *hapd = ctx;
843 : struct sta_info *sta;
844 : int multi;
845 :
846 22 : if (hostapd_das_nas_mismatch(hapd, attr))
847 2 : return RADIUS_DAS_NAS_MISMATCH;
848 :
849 20 : sta = hostapd_das_find_sta(hapd, attr, &multi);
850 20 : if (sta == NULL) {
851 14 : if (multi) {
852 1 : wpa_printf(MSG_DEBUG,
853 : "RADIUS DAS: Multiple sessions match - not supported");
854 1 : return RADIUS_DAS_MULTI_SESSION_MATCH;
855 : }
856 13 : if (hostapd_das_disconnect_pmksa(hapd, attr) == 0) {
857 4 : wpa_printf(MSG_DEBUG,
858 : "RADIUS DAS: PMKSA cache entry matched");
859 4 : return RADIUS_DAS_SUCCESS;
860 : }
861 9 : wpa_printf(MSG_DEBUG, "RADIUS DAS: No matching session found");
862 9 : return RADIUS_DAS_SESSION_NOT_FOUND;
863 : }
864 :
865 36 : wpa_printf(MSG_DEBUG, "RADIUS DAS: Found a matching session " MACSTR
866 36 : " - disconnecting", MAC2STR(sta->addr));
867 6 : wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr);
868 :
869 6 : hostapd_drv_sta_deauth(hapd, sta->addr,
870 : WLAN_REASON_PREV_AUTH_NOT_VALID);
871 6 : ap_sta_deauthenticate(hapd, sta, WLAN_REASON_PREV_AUTH_NOT_VALID);
872 :
873 6 : return RADIUS_DAS_SUCCESS;
874 : }
875 :
876 : #endif /* CONFIG_NO_RADIUS */
877 :
878 :
879 : /**
880 : * hostapd_setup_bss - Per-BSS setup (initialization)
881 : * @hapd: Pointer to BSS data
882 : * @first: Whether this BSS is the first BSS of an interface; -1 = not first,
883 : * but interface may exist
884 : *
885 : * This function is used to initialize all per-BSS data structures and
886 : * resources. This gets called in a loop for each BSS when an interface is
887 : * initialized. Most of the modules that are initialized here will be
888 : * deinitialized in hostapd_cleanup().
889 : */
890 2659 : static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
891 : {
892 2659 : struct hostapd_bss_config *conf = hapd->conf;
893 : u8 ssid[SSID_MAX_LEN + 1];
894 : int ssid_len, set_ssid;
895 : char force_ifname[IFNAMSIZ];
896 : u8 if_addr[ETH_ALEN];
897 2659 : int flush_old_stations = 1;
898 :
899 2659 : wpa_printf(MSG_DEBUG, "%s(hapd=%p (%s), first=%d)",
900 2659 : __func__, hapd, conf->iface, first);
901 :
902 : #ifdef EAP_SERVER_TNC
903 2046 : if (conf->tnc && tncs_global_init() < 0) {
904 0 : wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
905 0 : return -1;
906 : }
907 : #endif /* EAP_SERVER_TNC */
908 :
909 2659 : if (hapd->started) {
910 0 : wpa_printf(MSG_ERROR, "%s: Interface %s was already started",
911 0 : __func__, conf->iface);
912 0 : return -1;
913 : }
914 2659 : hapd->started = 1;
915 :
916 2659 : if (!first || first == -1) {
917 44 : u8 *addr = hapd->own_addr;
918 :
919 44 : if (!is_zero_ether_addr(conf->bssid)) {
920 : /* Allocate the configured BSSID. */
921 44 : os_memcpy(hapd->own_addr, conf->bssid, ETH_ALEN);
922 :
923 44 : if (hostapd_mac_comp(hapd->own_addr,
924 44 : hapd->iface->bss[0]->own_addr) ==
925 : 0) {
926 0 : wpa_printf(MSG_ERROR, "BSS '%s' may not have "
927 : "BSSID set to the MAC address of "
928 0 : "the radio", conf->iface);
929 0 : return -1;
930 : }
931 0 : } else if (hapd->iconf->use_driver_iface_addr) {
932 0 : addr = NULL;
933 : } else {
934 : /* Allocate the next available BSSID. */
935 : do {
936 0 : inc_byte_array(hapd->own_addr, ETH_ALEN);
937 0 : } while (mac_in_conf(hapd->iconf, hapd->own_addr));
938 : }
939 :
940 44 : hapd->interface_added = 1;
941 132 : if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
942 44 : conf->iface, addr, hapd,
943 : &hapd->drv_priv, force_ifname, if_addr,
944 44 : conf->bridge[0] ? conf->bridge : NULL,
945 : first == -1)) {
946 0 : wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
947 0 : MACSTR ")", MAC2STR(hapd->own_addr));
948 0 : hapd->interface_added = 0;
949 0 : return -1;
950 : }
951 :
952 44 : if (!addr)
953 0 : os_memcpy(hapd->own_addr, if_addr, ETH_ALEN);
954 : }
955 :
956 2659 : if (conf->wmm_enabled < 0)
957 2194 : conf->wmm_enabled = hapd->iconf->ieee80211n;
958 :
959 : #ifdef CONFIG_IEEE80211R
960 2659 : if (is_zero_ether_addr(conf->r1_key_holder))
961 2548 : os_memcpy(conf->r1_key_holder, hapd->own_addr, ETH_ALEN);
962 : #endif /* CONFIG_IEEE80211R */
963 :
964 : #ifdef CONFIG_MESH
965 613 : if (hapd->iface->mconf == NULL)
966 438 : flush_old_stations = 0;
967 : #endif /* CONFIG_MESH */
968 :
969 2659 : if (flush_old_stations)
970 2221 : hostapd_flush_old_stations(hapd,
971 : WLAN_REASON_PREV_AUTH_NOT_VALID);
972 2659 : hostapd_set_privacy(hapd, 0);
973 :
974 2659 : hostapd_broadcast_wep_clear(hapd);
975 2659 : if (hostapd_setup_encryption(conf->iface, hapd))
976 0 : return -1;
977 :
978 : /*
979 : * Fetch the SSID from the system and use it or,
980 : * if one was specified in the config file, verify they
981 : * match.
982 : */
983 2659 : ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
984 2659 : if (ssid_len < 0) {
985 0 : wpa_printf(MSG_ERROR, "Could not read SSID from system");
986 0 : return -1;
987 : }
988 2659 : if (conf->ssid.ssid_set) {
989 : /*
990 : * If SSID is specified in the config file and it differs
991 : * from what is being used then force installation of the
992 : * new SSID.
993 : */
994 2472 : set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
995 0 : os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
996 : } else {
997 : /*
998 : * No SSID in the config file; just use the one we got
999 : * from the system.
1000 : */
1001 187 : set_ssid = 0;
1002 187 : conf->ssid.ssid_len = ssid_len;
1003 187 : os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
1004 : }
1005 :
1006 2659 : if (!hostapd_drv_none(hapd)) {
1007 23823 : wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
1008 : " and ssid \"%s\"",
1009 18529 : conf->iface, MAC2STR(hapd->own_addr),
1010 2647 : wpa_ssid_txt(conf->ssid.ssid, conf->ssid.ssid_len));
1011 : }
1012 :
1013 2659 : if (hostapd_setup_wpa_psk(conf)) {
1014 4 : wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
1015 4 : return -1;
1016 : }
1017 :
1018 : /* Set SSID for the kernel driver (to be used in beacon and probe
1019 : * response frames) */
1020 2655 : if (set_ssid && hostapd_set_ssid(hapd, conf->ssid.ssid,
1021 : conf->ssid.ssid_len)) {
1022 0 : wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
1023 0 : return -1;
1024 : }
1025 :
1026 2655 : if (wpa_debug_level <= MSG_MSGDUMP)
1027 2655 : conf->radius->msg_dumps = 1;
1028 : #ifndef CONFIG_NO_RADIUS
1029 2042 : hapd->radius = radius_client_init(hapd, conf->radius);
1030 2042 : if (hapd->radius == NULL) {
1031 0 : wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
1032 0 : return -1;
1033 : }
1034 :
1035 2042 : if (conf->radius_das_port) {
1036 : struct radius_das_conf das_conf;
1037 2 : os_memset(&das_conf, 0, sizeof(das_conf));
1038 2 : das_conf.port = conf->radius_das_port;
1039 2 : das_conf.shared_secret = conf->radius_das_shared_secret;
1040 2 : das_conf.shared_secret_len =
1041 2 : conf->radius_das_shared_secret_len;
1042 2 : das_conf.client_addr = &conf->radius_das_client_addr;
1043 2 : das_conf.time_window = conf->radius_das_time_window;
1044 2 : das_conf.require_event_timestamp =
1045 2 : conf->radius_das_require_event_timestamp;
1046 2 : das_conf.require_message_authenticator =
1047 2 : conf->radius_das_require_message_authenticator;
1048 2 : das_conf.ctx = hapd;
1049 2 : das_conf.disconnect = hostapd_das_disconnect;
1050 2 : hapd->radius_das = radius_das_init(&das_conf);
1051 2 : if (hapd->radius_das == NULL) {
1052 0 : wpa_printf(MSG_ERROR, "RADIUS DAS initialization "
1053 : "failed.");
1054 0 : return -1;
1055 : }
1056 : }
1057 : #endif /* CONFIG_NO_RADIUS */
1058 :
1059 2655 : if (hostapd_acl_init(hapd)) {
1060 0 : wpa_printf(MSG_ERROR, "ACL initialization failed.");
1061 0 : return -1;
1062 : }
1063 2655 : if (hostapd_init_wps(hapd, conf))
1064 0 : return -1;
1065 :
1066 2655 : if (authsrv_init(hapd) < 0)
1067 3 : return -1;
1068 :
1069 2652 : if (ieee802_1x_init(hapd)) {
1070 1 : wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
1071 1 : return -1;
1072 : }
1073 :
1074 2651 : if ((conf->wpa || conf->osen) && hostapd_setup_wpa(hapd))
1075 0 : return -1;
1076 :
1077 2651 : if (accounting_init(hapd)) {
1078 1 : wpa_printf(MSG_ERROR, "Accounting initialization failed.");
1079 1 : return -1;
1080 : }
1081 :
1082 2652 : if (conf->ieee802_11f &&
1083 2 : (hapd->iapp = iapp_init(hapd, conf->iapp_iface)) == NULL) {
1084 0 : wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
1085 : "failed.");
1086 0 : return -1;
1087 : }
1088 :
1089 : #ifdef CONFIG_INTERWORKING
1090 2650 : if (gas_serv_init(hapd)) {
1091 0 : wpa_printf(MSG_ERROR, "GAS server initialization failed");
1092 0 : return -1;
1093 : }
1094 :
1095 2651 : if (conf->qos_map_set_len &&
1096 1 : hostapd_drv_set_qos_map(hapd, conf->qos_map_set,
1097 1 : conf->qos_map_set_len)) {
1098 0 : wpa_printf(MSG_ERROR, "Failed to initialize QoS Map");
1099 0 : return -1;
1100 : }
1101 : #endif /* CONFIG_INTERWORKING */
1102 :
1103 2650 : if (conf->bss_load_update_period && bss_load_update_init(hapd)) {
1104 0 : wpa_printf(MSG_ERROR, "BSS Load initialization failed");
1105 0 : return -1;
1106 : }
1107 :
1108 2650 : if (conf->proxy_arp) {
1109 14 : if (x_snoop_init(hapd)) {
1110 2 : wpa_printf(MSG_ERROR,
1111 : "Generic snooping infrastructure initialization failed");
1112 2 : return -1;
1113 : }
1114 :
1115 12 : if (dhcp_snoop_init(hapd)) {
1116 0 : wpa_printf(MSG_ERROR,
1117 : "DHCP snooping initialization failed");
1118 0 : return -1;
1119 : }
1120 :
1121 12 : if (ndisc_snoop_init(hapd)) {
1122 0 : wpa_printf(MSG_ERROR,
1123 : "Neighbor Discovery snooping initialization failed");
1124 0 : return -1;
1125 : }
1126 : }
1127 :
1128 2648 : if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
1129 0 : wpa_printf(MSG_ERROR, "VLAN initialization failed.");
1130 0 : return -1;
1131 : }
1132 :
1133 2648 : if (!conf->start_disabled && ieee802_11_set_beacon(hapd) < 0)
1134 3 : return -1;
1135 :
1136 2645 : if (hapd->wpa_auth && wpa_init_keys(hapd->wpa_auth) < 0)
1137 0 : return -1;
1138 :
1139 2645 : if (hapd->driver && hapd->driver->set_operstate)
1140 2633 : hapd->driver->set_operstate(hapd->drv_priv, 1);
1141 :
1142 2645 : return 0;
1143 : }
1144 :
1145 :
1146 2602 : static void hostapd_tx_queue_params(struct hostapd_iface *iface)
1147 : {
1148 2602 : struct hostapd_data *hapd = iface->bss[0];
1149 : int i;
1150 : struct hostapd_tx_queue_params *p;
1151 :
1152 : #ifdef CONFIG_MESH
1153 612 : if (iface->mconf == NULL)
1154 1050 : return;
1155 : #endif /* CONFIG_MESH */
1156 :
1157 10820 : for (i = 0; i < NUM_TX_QUEUES; i++) {
1158 8656 : p = &iface->conf->tx_queue[i];
1159 :
1160 8656 : if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
1161 : p->cwmax, p->burst)) {
1162 696 : wpa_printf(MSG_DEBUG, "Failed to set TX queue "
1163 : "parameters for queue %d.", i);
1164 : /* Continue anyway */
1165 : }
1166 : }
1167 1990 : }
1168 :
1169 :
1170 0 : static int hostapd_set_acl_list(struct hostapd_data *hapd,
1171 : struct mac_acl_entry *mac_acl,
1172 : int n_entries, u8 accept_acl)
1173 : {
1174 : struct hostapd_acl_params *acl_params;
1175 : int i, err;
1176 :
1177 0 : acl_params = os_zalloc(sizeof(*acl_params) +
1178 0 : (n_entries * sizeof(acl_params->mac_acl[0])));
1179 0 : if (!acl_params)
1180 0 : return -ENOMEM;
1181 :
1182 0 : for (i = 0; i < n_entries; i++)
1183 0 : os_memcpy(acl_params->mac_acl[i].addr, mac_acl[i].addr,
1184 : ETH_ALEN);
1185 :
1186 0 : acl_params->acl_policy = accept_acl;
1187 0 : acl_params->num_mac_acl = n_entries;
1188 :
1189 0 : err = hostapd_drv_set_acl(hapd, acl_params);
1190 :
1191 0 : os_free(acl_params);
1192 :
1193 0 : return err;
1194 : }
1195 :
1196 :
1197 2602 : static void hostapd_set_acl(struct hostapd_data *hapd)
1198 : {
1199 2602 : struct hostapd_config *conf = hapd->iconf;
1200 : int err;
1201 : u8 accept_acl;
1202 :
1203 2602 : if (hapd->iface->drv_max_acl_mac_addrs == 0)
1204 2602 : return;
1205 :
1206 0 : if (conf->bss[0]->macaddr_acl == DENY_UNLESS_ACCEPTED) {
1207 0 : accept_acl = 1;
1208 0 : err = hostapd_set_acl_list(hapd, conf->bss[0]->accept_mac,
1209 0 : conf->bss[0]->num_accept_mac,
1210 : accept_acl);
1211 0 : if (err) {
1212 0 : wpa_printf(MSG_DEBUG, "Failed to set accept acl");
1213 0 : return;
1214 : }
1215 0 : } else if (conf->bss[0]->macaddr_acl == ACCEPT_UNLESS_DENIED) {
1216 0 : accept_acl = 0;
1217 0 : err = hostapd_set_acl_list(hapd, conf->bss[0]->deny_mac,
1218 0 : conf->bss[0]->num_deny_mac,
1219 : accept_acl);
1220 0 : if (err) {
1221 0 : wpa_printf(MSG_DEBUG, "Failed to set deny acl");
1222 0 : return;
1223 : }
1224 : }
1225 : }
1226 :
1227 :
1228 37 : static int start_ctrl_iface_bss(struct hostapd_data *hapd)
1229 : {
1230 74 : if (!hapd->iface->interfaces ||
1231 37 : !hapd->iface->interfaces->ctrl_iface_init)
1232 0 : return 0;
1233 :
1234 37 : if (hapd->iface->interfaces->ctrl_iface_init(hapd)) {
1235 0 : wpa_printf(MSG_ERROR,
1236 : "Failed to setup control interface for %s",
1237 0 : hapd->conf->iface);
1238 0 : return -1;
1239 : }
1240 :
1241 37 : return 0;
1242 : }
1243 :
1244 :
1245 4646 : static int start_ctrl_iface(struct hostapd_iface *iface)
1246 : {
1247 : size_t i;
1248 :
1249 4646 : if (!iface->interfaces || !iface->interfaces->ctrl_iface_init)
1250 614 : return 0;
1251 :
1252 8075 : for (i = 0; i < iface->num_bss; i++) {
1253 4049 : struct hostapd_data *hapd = iface->bss[i];
1254 4049 : if (iface->interfaces->ctrl_iface_init(hapd)) {
1255 6 : wpa_printf(MSG_ERROR,
1256 : "Failed to setup control interface for %s",
1257 6 : hapd->conf->iface);
1258 6 : return -1;
1259 : }
1260 : }
1261 :
1262 4026 : return 0;
1263 : }
1264 :
1265 :
1266 4 : static void channel_list_update_timeout(void *eloop_ctx, void *timeout_ctx)
1267 : {
1268 4 : struct hostapd_iface *iface = eloop_ctx;
1269 :
1270 4 : if (!iface->wait_channel_update) {
1271 0 : wpa_printf(MSG_INFO, "Channel list update timeout, but interface was not waiting for it");
1272 4 : return;
1273 : }
1274 :
1275 : /*
1276 : * It is possible that the existing channel list is acceptable, so try
1277 : * to proceed.
1278 : */
1279 4 : wpa_printf(MSG_DEBUG, "Channel list update timeout - try to continue anyway");
1280 4 : setup_interface2(iface);
1281 : }
1282 :
1283 :
1284 3200 : void hostapd_channel_list_updated(struct hostapd_iface *iface, int initiator)
1285 : {
1286 3200 : if (!iface->wait_channel_update || initiator != REGDOM_SET_BY_USER)
1287 6192 : return;
1288 :
1289 208 : wpa_printf(MSG_DEBUG, "Channel list updated - continue setup");
1290 208 : eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
1291 208 : setup_interface2(iface);
1292 : }
1293 :
1294 :
1295 2630 : static int setup_interface(struct hostapd_iface *iface)
1296 : {
1297 2630 : struct hostapd_data *hapd = iface->bss[0];
1298 : size_t i;
1299 :
1300 : /*
1301 : * It is possible that setup_interface() is called after the interface
1302 : * was disabled etc., in which case driver_ap_teardown is possibly set
1303 : * to 1. Clear it here so any other key/station deletion, which is not
1304 : * part of a teardown flow, would also call the relevant driver
1305 : * callbacks.
1306 : */
1307 2630 : iface->driver_ap_teardown = 0;
1308 :
1309 2630 : if (!iface->phy[0]) {
1310 2563 : const char *phy = hostapd_drv_get_radio_name(hapd);
1311 2563 : if (phy) {
1312 2551 : wpa_printf(MSG_DEBUG, "phy: %s", phy);
1313 2551 : os_strlcpy(iface->phy, phy, sizeof(iface->phy));
1314 : }
1315 : }
1316 :
1317 : /*
1318 : * Make sure that all BSSes get configured with a pointer to the same
1319 : * driver interface.
1320 : */
1321 2639 : for (i = 1; i < iface->num_bss; i++) {
1322 9 : iface->bss[i]->driver = hapd->driver;
1323 9 : iface->bss[i]->drv_priv = hapd->drv_priv;
1324 : }
1325 :
1326 2630 : if (hostapd_validate_bssid_configuration(iface))
1327 0 : return -1;
1328 :
1329 : /*
1330 : * Initialize control interfaces early to allow external monitoring of
1331 : * channel setup operations that may take considerable amount of time
1332 : * especially for DFS cases.
1333 : */
1334 2630 : if (start_ctrl_iface(iface))
1335 0 : return -1;
1336 :
1337 2630 : if (hapd->iconf->country[0] && hapd->iconf->country[1]) {
1338 : char country[4], previous_country[4];
1339 :
1340 376 : hostapd_set_state(iface, HAPD_IFACE_COUNTRY_UPDATE);
1341 376 : if (hostapd_get_country(hapd, previous_country) < 0)
1342 0 : previous_country[0] = '\0';
1343 :
1344 376 : os_memcpy(country, hapd->iconf->country, 3);
1345 376 : country[3] = '\0';
1346 376 : if (hostapd_set_country(hapd, country) < 0) {
1347 0 : wpa_printf(MSG_ERROR, "Failed to set country code");
1348 212 : return -1;
1349 : }
1350 :
1351 376 : wpa_printf(MSG_DEBUG, "Previous country code %s, new country code %s",
1352 : previous_country, country);
1353 :
1354 376 : if (os_strncmp(previous_country, country, 2) != 0) {
1355 212 : wpa_printf(MSG_DEBUG, "Continue interface setup after channel list update");
1356 212 : iface->wait_channel_update = 1;
1357 212 : eloop_register_timeout(5, 0,
1358 : channel_list_update_timeout,
1359 : iface, NULL);
1360 212 : return 0;
1361 : }
1362 : }
1363 :
1364 2418 : return setup_interface2(iface);
1365 : }
1366 :
1367 :
1368 2630 : static int setup_interface2(struct hostapd_iface *iface)
1369 : {
1370 2630 : iface->wait_channel_update = 0;
1371 :
1372 2630 : if (hostapd_get_hw_features(iface)) {
1373 : /* Not all drivers support this yet, so continue without hw
1374 : * feature data. */
1375 : } else {
1376 2618 : int ret = hostapd_select_hw_mode(iface);
1377 2618 : if (ret < 0) {
1378 3 : wpa_printf(MSG_ERROR, "Could not select hw_mode and "
1379 : "channel. (%d)", ret);
1380 3 : goto fail;
1381 : }
1382 2615 : if (ret == 1) {
1383 12 : wpa_printf(MSG_DEBUG, "Interface initialization will be completed in a callback (ACS)");
1384 12 : return 0;
1385 : }
1386 2603 : ret = hostapd_check_ht_capab(iface);
1387 2603 : if (ret < 0)
1388 2 : goto fail;
1389 2601 : if (ret == 1) {
1390 71 : wpa_printf(MSG_DEBUG, "Interface initialization will "
1391 : "be completed in a callback");
1392 71 : return 0;
1393 : }
1394 :
1395 2530 : if (iface->conf->ieee80211h)
1396 6 : wpa_printf(MSG_DEBUG, "DFS support is enabled");
1397 : }
1398 2542 : return hostapd_setup_interface_complete(iface, 0);
1399 :
1400 : fail:
1401 5 : hostapd_set_state(iface, HAPD_IFACE_DISABLED);
1402 5 : wpa_msg(iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
1403 5 : if (iface->interfaces && iface->interfaces->terminate_on_error)
1404 0 : eloop_terminate();
1405 5 : return -1;
1406 : }
1407 :
1408 :
1409 : #ifdef CONFIG_FST
1410 :
1411 532 : static const u8 * fst_hostapd_get_bssid_cb(void *ctx)
1412 : {
1413 532 : struct hostapd_data *hapd = ctx;
1414 :
1415 532 : return hapd->own_addr;
1416 : }
1417 :
1418 :
1419 1189 : static void fst_hostapd_get_channel_info_cb(void *ctx,
1420 : enum hostapd_hw_mode *hw_mode,
1421 : u8 *channel)
1422 : {
1423 1189 : struct hostapd_data *hapd = ctx;
1424 :
1425 1189 : *hw_mode = ieee80211_freq_to_chan(hapd->iface->freq, channel);
1426 1189 : }
1427 :
1428 :
1429 804 : static void fst_hostapd_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
1430 : {
1431 804 : struct hostapd_data *hapd = ctx;
1432 :
1433 804 : if (hapd->iface->fst_ies != fst_ies) {
1434 532 : hapd->iface->fst_ies = fst_ies;
1435 532 : if (ieee802_11_set_beacon(hapd))
1436 0 : wpa_printf(MSG_WARNING, "FST: Cannot set beacon");
1437 : }
1438 804 : }
1439 :
1440 :
1441 353 : static int fst_hostapd_send_action_cb(void *ctx, const u8 *da,
1442 : struct wpabuf *buf)
1443 : {
1444 353 : struct hostapd_data *hapd = ctx;
1445 :
1446 706 : return hostapd_drv_send_action(hapd, hapd->iface->freq, 0, da,
1447 353 : wpabuf_head(buf), wpabuf_len(buf));
1448 : }
1449 :
1450 :
1451 300 : static const struct wpabuf * fst_hostapd_get_mb_ie_cb(void *ctx, const u8 *addr)
1452 : {
1453 300 : struct hostapd_data *hapd = ctx;
1454 300 : struct sta_info *sta = ap_get_sta(hapd, addr);
1455 :
1456 300 : return sta ? sta->mb_ies : NULL;
1457 : }
1458 :
1459 :
1460 291 : static void fst_hostapd_update_mb_ie_cb(void *ctx, const u8 *addr,
1461 : const u8 *buf, size_t size)
1462 : {
1463 291 : struct hostapd_data *hapd = ctx;
1464 291 : struct sta_info *sta = ap_get_sta(hapd, addr);
1465 :
1466 291 : if (sta) {
1467 : struct mb_ies_info info;
1468 :
1469 291 : if (!mb_ies_info_by_ies(&info, buf, size)) {
1470 291 : wpabuf_free(sta->mb_ies);
1471 291 : sta->mb_ies = mb_ies_by_info(&info);
1472 : }
1473 : }
1474 291 : }
1475 :
1476 :
1477 1255 : static const u8 * fst_hostapd_get_sta(struct fst_get_peer_ctx **get_ctx,
1478 : Boolean mb_only)
1479 : {
1480 1255 : struct sta_info *s = (struct sta_info *) *get_ctx;
1481 :
1482 1255 : if (mb_only) {
1483 40 : for (; s && !s->mb_ies; s = s->next)
1484 : ;
1485 : }
1486 :
1487 1255 : if (s) {
1488 1250 : *get_ctx = (struct fst_get_peer_ctx *) s->next;
1489 :
1490 1250 : return s->addr;
1491 : }
1492 :
1493 5 : *get_ctx = NULL;
1494 5 : return NULL;
1495 : }
1496 :
1497 :
1498 1251 : static const u8 * fst_hostapd_get_peer_first(void *ctx,
1499 : struct fst_get_peer_ctx **get_ctx,
1500 : Boolean mb_only)
1501 : {
1502 1251 : struct hostapd_data *hapd = ctx;
1503 :
1504 1251 : *get_ctx = (struct fst_get_peer_ctx *) hapd->sta_list;
1505 :
1506 1251 : return fst_hostapd_get_sta(get_ctx, mb_only);
1507 : }
1508 :
1509 :
1510 4 : static const u8 * fst_hostapd_get_peer_next(void *ctx,
1511 : struct fst_get_peer_ctx **get_ctx,
1512 : Boolean mb_only)
1513 : {
1514 4 : return fst_hostapd_get_sta(get_ctx, mb_only);
1515 : }
1516 :
1517 :
1518 272 : void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd,
1519 : struct fst_wpa_obj *iface_obj)
1520 : {
1521 272 : iface_obj->ctx = hapd;
1522 272 : iface_obj->get_bssid = fst_hostapd_get_bssid_cb;
1523 272 : iface_obj->get_channel_info = fst_hostapd_get_channel_info_cb;
1524 272 : iface_obj->set_ies = fst_hostapd_set_ies_cb;
1525 272 : iface_obj->send_action = fst_hostapd_send_action_cb;
1526 272 : iface_obj->get_mb_ie = fst_hostapd_get_mb_ie_cb;
1527 272 : iface_obj->update_mb_ie = fst_hostapd_update_mb_ie_cb;
1528 272 : iface_obj->get_peer_first = fst_hostapd_get_peer_first;
1529 272 : iface_obj->get_peer_next = fst_hostapd_get_peer_next;
1530 272 : }
1531 :
1532 : #endif /* CONFIG_FST */
1533 :
1534 :
1535 : #ifdef NEED_AP_MLME
1536 4 : static enum nr_chan_width hostapd_get_nr_chan_width(struct hostapd_data *hapd,
1537 : int ht, int vht)
1538 : {
1539 4 : if (!ht && !vht)
1540 0 : return NR_CHAN_WIDTH_20;
1541 4 : if (!hapd->iconf->secondary_channel)
1542 4 : return NR_CHAN_WIDTH_20;
1543 0 : if (!vht || hapd->iconf->vht_oper_chwidth == VHT_CHANWIDTH_USE_HT)
1544 0 : return NR_CHAN_WIDTH_40;
1545 0 : if (hapd->iconf->vht_oper_chwidth == VHT_CHANWIDTH_80MHZ)
1546 0 : return NR_CHAN_WIDTH_80;
1547 0 : if (hapd->iconf->vht_oper_chwidth == VHT_CHANWIDTH_160MHZ)
1548 0 : return NR_CHAN_WIDTH_160;
1549 0 : if (hapd->iconf->vht_oper_chwidth == VHT_CHANWIDTH_80P80MHZ)
1550 0 : return NR_CHAN_WIDTH_80P80;
1551 0 : return NR_CHAN_WIDTH_20;
1552 : }
1553 : #endif /* NEED_AP_MLME */
1554 :
1555 :
1556 2610 : static void hostapd_set_own_neighbor_report(struct hostapd_data *hapd)
1557 : {
1558 : #ifdef NEED_AP_MLME
1559 2610 : u16 capab = hostapd_own_capab_info(hapd);
1560 2610 : int ht = hapd->iconf->ieee80211n && !hapd->conf->disable_11n;
1561 2610 : int vht = hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac;
1562 : struct wpa_ssid_value ssid;
1563 : u8 channel, op_class;
1564 2610 : int center_freq1 = 0, center_freq2 = 0;
1565 : enum nr_chan_width width;
1566 : u32 bssid_info;
1567 : struct wpabuf *nr;
1568 :
1569 2610 : if (!(hapd->conf->radio_measurements[0] &
1570 : WLAN_RRM_CAPS_NEIGHBOR_REPORT))
1571 5212 : return;
1572 :
1573 4 : bssid_info = 3; /* AP is reachable */
1574 4 : bssid_info |= NEI_REP_BSSID_INFO_SECURITY; /* "same as the AP" */
1575 4 : bssid_info |= NEI_REP_BSSID_INFO_KEY_SCOPE; /* "same as the AP" */
1576 :
1577 4 : if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT)
1578 0 : bssid_info |= NEI_REP_BSSID_INFO_SPECTRUM_MGMT;
1579 :
1580 4 : bssid_info |= NEI_REP_BSSID_INFO_RM; /* RRM is supported */
1581 :
1582 4 : if (hapd->conf->wmm_enabled) {
1583 4 : bssid_info |= NEI_REP_BSSID_INFO_QOS;
1584 :
1585 4 : if (hapd->conf->wmm_uapsd &&
1586 0 : (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
1587 0 : bssid_info |= NEI_REP_BSSID_INFO_APSD;
1588 : }
1589 :
1590 4 : if (ht) {
1591 4 : bssid_info |= NEI_REP_BSSID_INFO_HT |
1592 : NEI_REP_BSSID_INFO_DELAYED_BA;
1593 :
1594 : /* VHT bit added in IEEE P802.11-REVmc/D4.3 */
1595 4 : if (vht)
1596 0 : bssid_info |= NEI_REP_BSSID_INFO_VHT;
1597 : }
1598 :
1599 : /* TODO: Set NEI_REP_BSSID_INFO_MOBILITY_DOMAIN if MDE is set */
1600 :
1601 8 : ieee80211_freq_to_channel_ext(hapd->iface->freq,
1602 4 : hapd->iconf->secondary_channel,
1603 4 : hapd->iconf->vht_oper_chwidth,
1604 : &op_class, &channel);
1605 4 : width = hostapd_get_nr_chan_width(hapd, ht, vht);
1606 4 : if (vht) {
1607 0 : center_freq1 = ieee80211_chan_to_freq(
1608 : NULL, op_class,
1609 0 : hapd->iconf->vht_oper_centr_freq_seg0_idx);
1610 0 : if (width == NR_CHAN_WIDTH_80P80)
1611 0 : center_freq2 = ieee80211_chan_to_freq(
1612 : NULL, op_class,
1613 0 : hapd->iconf->vht_oper_centr_freq_seg1_idx);
1614 4 : } else if (ht) {
1615 8 : center_freq1 = hapd->iface->freq +
1616 4 : 10 * hapd->iconf->secondary_channel;
1617 : }
1618 :
1619 4 : ssid.ssid_len = hapd->conf->ssid.ssid_len;
1620 4 : os_memcpy(ssid.ssid, hapd->conf->ssid.ssid, ssid.ssid_len);
1621 :
1622 : /*
1623 : * Neighbor Report element size = BSSID + BSSID info + op_class + chan +
1624 : * phy type + wide bandwidth channel subelement.
1625 : */
1626 4 : nr = wpabuf_alloc(ETH_ALEN + 4 + 1 + 1 + 1 + 5);
1627 4 : if (!nr)
1628 0 : return;
1629 :
1630 4 : wpabuf_put_data(nr, hapd->own_addr, ETH_ALEN);
1631 4 : wpabuf_put_le32(nr, bssid_info);
1632 4 : wpabuf_put_u8(nr, op_class);
1633 4 : wpabuf_put_u8(nr, channel);
1634 4 : wpabuf_put_u8(nr, ieee80211_get_phy_type(hapd->iface->freq, ht, vht));
1635 :
1636 : /*
1637 : * Wide Bandwidth Channel subelement may be needed to allow the
1638 : * receiving STA to send packets to the AP. See IEEE P802.11-REVmc/D5.0
1639 : * Figure 9-301.
1640 : */
1641 4 : wpabuf_put_u8(nr, WNM_NEIGHBOR_WIDE_BW_CHAN);
1642 4 : wpabuf_put_u8(nr, 3);
1643 4 : wpabuf_put_u8(nr, width);
1644 4 : wpabuf_put_u8(nr, center_freq1);
1645 4 : wpabuf_put_u8(nr, center_freq2);
1646 :
1647 4 : hostapd_neighbor_set(hapd, hapd->own_addr, &ssid, nr, hapd->iconf->lci,
1648 4 : hapd->iconf->civic);
1649 :
1650 4 : wpabuf_free(nr);
1651 : #endif /* NEED_AP_MLME */
1652 : }
1653 :
1654 :
1655 2633 : static int hostapd_setup_interface_complete_sync(struct hostapd_iface *iface,
1656 : int err)
1657 : {
1658 2633 : struct hostapd_data *hapd = iface->bss[0];
1659 : size_t j;
1660 : u8 *prev_addr;
1661 2633 : int delay_apply_cfg = 0;
1662 2633 : int res_dfs_offload = 0;
1663 :
1664 2633 : if (err)
1665 0 : goto fail;
1666 :
1667 2633 : wpa_printf(MSG_DEBUG, "Completing interface initialization");
1668 2633 : if (iface->conf->channel) {
1669 : #ifdef NEED_AP_MLME
1670 : int res;
1671 : #endif /* NEED_AP_MLME */
1672 :
1673 2621 : iface->freq = hostapd_hw_get_freq(hapd, iface->conf->channel);
1674 7863 : wpa_printf(MSG_DEBUG, "Mode: %s Channel: %d "
1675 : "Frequency: %d MHz",
1676 2621 : hostapd_hw_mode_txt(iface->conf->hw_mode),
1677 2621 : iface->conf->channel, iface->freq);
1678 :
1679 : #ifdef NEED_AP_MLME
1680 : /* Handle DFS only if it is not offloaded to the driver */
1681 2621 : if (!(iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD)) {
1682 : /* Check DFS */
1683 2621 : res = hostapd_handle_dfs(iface);
1684 2621 : if (res <= 0) {
1685 15 : if (res < 0)
1686 2 : goto fail;
1687 13 : return res;
1688 : }
1689 : } else {
1690 : /* If DFS is offloaded to the driver */
1691 0 : res_dfs_offload = hostapd_handle_dfs_offload(iface);
1692 0 : if (res_dfs_offload <= 0) {
1693 0 : if (res_dfs_offload < 0)
1694 0 : goto fail;
1695 : } else {
1696 0 : wpa_printf(MSG_DEBUG,
1697 : "Proceed with AP/channel setup");
1698 : /*
1699 : * If this is a DFS channel, move to completing
1700 : * AP setup.
1701 : */
1702 0 : if (res_dfs_offload == 1)
1703 0 : goto dfs_offload;
1704 : /* Otherwise fall through. */
1705 : }
1706 : }
1707 : #endif /* NEED_AP_MLME */
1708 :
1709 : #ifdef CONFIG_MESH
1710 614 : if (iface->mconf != NULL) {
1711 176 : wpa_printf(MSG_DEBUG,
1712 : "%s: Mesh configuration will be applied while joining the mesh network",
1713 176 : iface->bss[0]->conf->iface);
1714 176 : delay_apply_cfg = 1;
1715 : }
1716 : #endif /* CONFIG_MESH */
1717 :
1718 5036 : if (!delay_apply_cfg &&
1719 17010 : hostapd_set_freq(hapd, hapd->iconf->hw_mode, iface->freq,
1720 2430 : hapd->iconf->channel,
1721 2430 : hapd->iconf->ieee80211n,
1722 2430 : hapd->iconf->ieee80211ac,
1723 2430 : hapd->iconf->secondary_channel,
1724 2430 : hapd->iconf->vht_oper_chwidth,
1725 2430 : hapd->iconf->vht_oper_centr_freq_seg0_idx,
1726 2430 : hapd->iconf->vht_oper_centr_freq_seg1_idx)) {
1727 2 : wpa_printf(MSG_ERROR, "Could not set channel for "
1728 : "kernel driver");
1729 2 : goto fail;
1730 : }
1731 : }
1732 :
1733 2616 : if (iface->current_mode) {
1734 2604 : if (hostapd_prepare_rates(iface, iface->current_mode)) {
1735 1 : wpa_printf(MSG_ERROR, "Failed to prepare rates "
1736 : "table.");
1737 1 : hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
1738 : HOSTAPD_LEVEL_WARNING,
1739 : "Failed to prepare rates table.");
1740 1 : goto fail;
1741 : }
1742 : }
1743 :
1744 2616 : if (hapd->iconf->rts_threshold > -1 &&
1745 1 : hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
1746 0 : wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
1747 : "kernel driver");
1748 0 : goto fail;
1749 : }
1750 :
1751 2618 : if (hapd->iconf->fragm_threshold > -1 &&
1752 3 : hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
1753 0 : wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
1754 : "for kernel driver");
1755 0 : goto fail;
1756 : }
1757 :
1758 2615 : prev_addr = hapd->own_addr;
1759 :
1760 5227 : for (j = 0; j < iface->num_bss; j++) {
1761 2625 : hapd = iface->bss[j];
1762 2625 : if (j)
1763 10 : os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
1764 2625 : if (hostapd_setup_bss(hapd, j == 0)) {
1765 : do {
1766 13 : hapd = iface->bss[j];
1767 13 : hostapd_bss_deinit_no_free(hapd);
1768 13 : hostapd_free_hapd_data(hapd);
1769 13 : } while (j-- > 0);
1770 13 : goto fail;
1771 : }
1772 2612 : if (is_zero_ether_addr(hapd->conf->bssid))
1773 2556 : prev_addr = hapd->own_addr;
1774 : }
1775 2602 : hapd = iface->bss[0];
1776 :
1777 2602 : hostapd_tx_queue_params(iface);
1778 :
1779 2602 : ap_list_init(iface);
1780 :
1781 2602 : hostapd_set_acl(hapd);
1782 :
1783 2602 : if (hostapd_driver_commit(hapd) < 0) {
1784 0 : wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
1785 : "configuration", __func__);
1786 0 : goto fail;
1787 : }
1788 :
1789 : /*
1790 : * WPS UPnP module can be initialized only when the "upnp_iface" is up.
1791 : * If "interface" and "upnp_iface" are the same (e.g., non-bridge
1792 : * mode), the interface is up only after driver_commit, so initialize
1793 : * WPS after driver_commit.
1794 : */
1795 5212 : for (j = 0; j < iface->num_bss; j++) {
1796 2612 : if (hostapd_init_wps_complete(iface->bss[j]))
1797 2 : goto fail;
1798 : }
1799 :
1800 2600 : if ((iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
1801 : !res_dfs_offload) {
1802 : /*
1803 : * If freq is DFS, and DFS is offloaded to the driver, then wait
1804 : * for CAC to complete.
1805 : */
1806 0 : wpa_printf(MSG_DEBUG, "%s: Wait for CAC to complete", __func__);
1807 0 : return res_dfs_offload;
1808 : }
1809 :
1810 : #ifdef NEED_AP_MLME
1811 : dfs_offload:
1812 : #endif /* NEED_AP_MLME */
1813 :
1814 : #ifdef CONFIG_FST
1815 2600 : if (hapd->iconf->fst_cfg.group_id[0]) {
1816 : struct fst_wpa_obj iface_obj;
1817 :
1818 7 : fst_hostapd_fill_iface_obj(hapd, &iface_obj);
1819 7 : iface->fst = fst_attach(hapd->conf->iface, hapd->own_addr,
1820 7 : &iface_obj, &hapd->iconf->fst_cfg);
1821 7 : if (!iface->fst) {
1822 0 : wpa_printf(MSG_ERROR, "Could not attach to FST %s",
1823 0 : hapd->iconf->fst_cfg.group_id);
1824 0 : goto fail;
1825 : }
1826 : }
1827 : #endif /* CONFIG_FST */
1828 :
1829 2600 : hostapd_set_state(iface, HAPD_IFACE_ENABLED);
1830 2600 : wpa_msg(iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_ENABLED);
1831 2600 : if (hapd->setup_complete_cb)
1832 438 : hapd->setup_complete_cb(hapd->setup_complete_cb_ctx);
1833 :
1834 2600 : wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
1835 2600 : iface->bss[0]->conf->iface);
1836 2600 : if (iface->interfaces && iface->interfaces->terminate_on_error > 0)
1837 19 : iface->interfaces->terminate_on_error--;
1838 :
1839 5210 : for (j = 0; j < iface->num_bss; j++)
1840 2610 : hostapd_set_own_neighbor_report(iface->bss[j]);
1841 :
1842 2600 : return 0;
1843 :
1844 : fail:
1845 20 : wpa_printf(MSG_ERROR, "Interface initialization failed");
1846 20 : hostapd_set_state(iface, HAPD_IFACE_DISABLED);
1847 20 : wpa_msg(hapd->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
1848 : #ifdef CONFIG_FST
1849 20 : if (iface->fst) {
1850 0 : fst_detach(iface->fst);
1851 0 : iface->fst = NULL;
1852 : }
1853 : #endif /* CONFIG_FST */
1854 20 : if (iface->interfaces && iface->interfaces->terminate_on_error)
1855 0 : eloop_terminate();
1856 20 : return -1;
1857 : }
1858 :
1859 :
1860 : /**
1861 : * hostapd_setup_interface_complete - Complete interface setup
1862 : *
1863 : * This function is called when previous steps in the interface setup has been
1864 : * completed. This can also start operations, e.g., DFS, that will require
1865 : * additional processing before interface is ready to be enabled. Such
1866 : * operations will call this function from eloop callbacks when finished.
1867 : */
1868 2633 : int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
1869 : {
1870 2633 : struct hapd_interfaces *interfaces = iface->interfaces;
1871 2633 : struct hostapd_data *hapd = iface->bss[0];
1872 : unsigned int i;
1873 2633 : int not_ready_in_sync_ifaces = 0;
1874 :
1875 2633 : if (!iface->need_to_start_in_sync)
1876 2633 : return hostapd_setup_interface_complete_sync(iface, err);
1877 :
1878 0 : if (err) {
1879 0 : wpa_printf(MSG_ERROR, "Interface initialization failed");
1880 0 : hostapd_set_state(iface, HAPD_IFACE_DISABLED);
1881 0 : iface->need_to_start_in_sync = 0;
1882 0 : wpa_msg(hapd->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
1883 0 : if (interfaces && interfaces->terminate_on_error)
1884 0 : eloop_terminate();
1885 0 : return -1;
1886 : }
1887 :
1888 0 : if (iface->ready_to_start_in_sync) {
1889 : /* Already in ready and waiting. should never happpen */
1890 0 : return 0;
1891 : }
1892 :
1893 0 : for (i = 0; i < interfaces->count; i++) {
1894 0 : if (interfaces->iface[i]->need_to_start_in_sync &&
1895 0 : !interfaces->iface[i]->ready_to_start_in_sync)
1896 0 : not_ready_in_sync_ifaces++;
1897 : }
1898 :
1899 : /*
1900 : * Check if this is the last interface, if yes then start all the other
1901 : * waiting interfaces. If not, add this interface to the waiting list.
1902 : */
1903 0 : if (not_ready_in_sync_ifaces > 1 && iface->state == HAPD_IFACE_DFS) {
1904 : /*
1905 : * If this interface went through CAC, do not synchronize, just
1906 : * start immediately.
1907 : */
1908 0 : iface->need_to_start_in_sync = 0;
1909 0 : wpa_printf(MSG_INFO,
1910 : "%s: Finished CAC - bypass sync and start interface",
1911 0 : iface->bss[0]->conf->iface);
1912 0 : return hostapd_setup_interface_complete_sync(iface, err);
1913 : }
1914 :
1915 0 : if (not_ready_in_sync_ifaces > 1) {
1916 : /* need to wait as there are other interfaces still coming up */
1917 0 : iface->ready_to_start_in_sync = 1;
1918 0 : wpa_printf(MSG_INFO,
1919 : "%s: Interface waiting to sync with other interfaces",
1920 0 : iface->bss[0]->conf->iface);
1921 0 : return 0;
1922 : }
1923 :
1924 0 : wpa_printf(MSG_INFO,
1925 : "%s: Last interface to sync - starting all interfaces",
1926 0 : iface->bss[0]->conf->iface);
1927 0 : iface->need_to_start_in_sync = 0;
1928 0 : hostapd_setup_interface_complete_sync(iface, err);
1929 0 : for (i = 0; i < interfaces->count; i++) {
1930 0 : if (interfaces->iface[i]->need_to_start_in_sync &&
1931 0 : interfaces->iface[i]->ready_to_start_in_sync) {
1932 0 : hostapd_setup_interface_complete_sync(
1933 0 : interfaces->iface[i], 0);
1934 : /* Only once the interfaces are sync started */
1935 0 : interfaces->iface[i]->need_to_start_in_sync = 0;
1936 : }
1937 : }
1938 :
1939 0 : return 0;
1940 : }
1941 :
1942 :
1943 : /**
1944 : * hostapd_setup_interface - Setup of an interface
1945 : * @iface: Pointer to interface data.
1946 : * Returns: 0 on success, -1 on failure
1947 : *
1948 : * Initializes the driver interface, validates the configuration,
1949 : * and sets driver parameters based on the configuration.
1950 : * Flushes old stations, sets the channel, encryption,
1951 : * beacons, and WDS links based on the configuration.
1952 : *
1953 : * If interface setup requires more time, e.g., to perform HT co-ex scans, ACS,
1954 : * or DFS operations, this function returns 0 before such operations have been
1955 : * completed. The pending operations are registered into eloop and will be
1956 : * completed from eloop callbacks. Those callbacks end up calling
1957 : * hostapd_setup_interface_complete() once setup has been completed.
1958 : */
1959 2630 : int hostapd_setup_interface(struct hostapd_iface *iface)
1960 : {
1961 : int ret;
1962 :
1963 2630 : ret = setup_interface(iface);
1964 2630 : if (ret) {
1965 19 : wpa_printf(MSG_ERROR, "%s: Unable to setup interface.",
1966 19 : iface->bss[0]->conf->iface);
1967 19 : return -1;
1968 : }
1969 :
1970 2611 : return 0;
1971 : }
1972 :
1973 :
1974 : /**
1975 : * hostapd_alloc_bss_data - Allocate and initialize per-BSS data
1976 : * @hapd_iface: Pointer to interface data
1977 : * @conf: Pointer to per-interface configuration
1978 : * @bss: Pointer to per-BSS configuration for this BSS
1979 : * Returns: Pointer to allocated BSS data
1980 : *
1981 : * This function is used to allocate per-BSS data structure. This data will be
1982 : * freed after hostapd_cleanup() is called for it during interface
1983 : * deinitialization.
1984 : */
1985 : struct hostapd_data *
1986 2545 : hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
1987 : struct hostapd_config *conf,
1988 : struct hostapd_bss_config *bss)
1989 : {
1990 : struct hostapd_data *hapd;
1991 :
1992 2545 : hapd = os_zalloc(sizeof(*hapd));
1993 2545 : if (hapd == NULL)
1994 4 : return NULL;
1995 :
1996 2541 : hapd->new_assoc_sta_cb = hostapd_new_assoc_sta;
1997 2541 : hapd->iconf = conf;
1998 2541 : hapd->conf = bss;
1999 2541 : hapd->iface = hapd_iface;
2000 2541 : hapd->driver = hapd->iconf->driver;
2001 2541 : hapd->ctrl_sock = -1;
2002 2541 : dl_list_init(&hapd->ctrl_dst);
2003 2541 : dl_list_init(&hapd->nr_db);
2004 :
2005 2541 : return hapd;
2006 : }
2007 :
2008 :
2009 2721 : static void hostapd_bss_deinit(struct hostapd_data *hapd)
2010 : {
2011 2721 : if (!hapd)
2012 2722 : return;
2013 2720 : wpa_printf(MSG_DEBUG, "%s: deinit bss %s", __func__,
2014 2720 : hapd->conf->iface);
2015 2720 : hostapd_bss_deinit_no_free(hapd);
2016 2720 : wpa_msg(hapd->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
2017 2720 : hostapd_cleanup(hapd);
2018 : }
2019 :
2020 :
2021 2682 : void hostapd_interface_deinit(struct hostapd_iface *iface)
2022 : {
2023 : int j;
2024 :
2025 2682 : wpa_printf(MSG_DEBUG, "%s(%p)", __func__, iface);
2026 2682 : if (iface == NULL)
2027 2682 : return;
2028 :
2029 2682 : hostapd_set_state(iface, HAPD_IFACE_DISABLED);
2030 :
2031 : #ifdef CONFIG_IEEE80211N
2032 : #ifdef NEED_AP_MLME
2033 2682 : hostapd_stop_setup_timers(iface);
2034 2682 : eloop_cancel_timeout(ap_ht2040_timeout, iface, NULL);
2035 : #endif /* NEED_AP_MLME */
2036 : #endif /* CONFIG_IEEE80211N */
2037 2682 : eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
2038 2682 : iface->wait_channel_update = 0;
2039 :
2040 : #ifdef CONFIG_FST
2041 2682 : if (iface->fst) {
2042 14 : fst_detach(iface->fst);
2043 14 : iface->fst = NULL;
2044 : }
2045 : #endif /* CONFIG_FST */
2046 :
2047 5364 : for (j = iface->num_bss - 1; j >= 0; j--) {
2048 2683 : if (!iface->bss)
2049 1 : break;
2050 2682 : hostapd_bss_deinit(iface->bss[j]);
2051 : }
2052 : }
2053 :
2054 :
2055 2682 : void hostapd_interface_free(struct hostapd_iface *iface)
2056 : {
2057 : size_t j;
2058 2682 : wpa_printf(MSG_DEBUG, "%s(%p)", __func__, iface);
2059 5364 : for (j = 0; j < iface->num_bss; j++) {
2060 2683 : if (!iface->bss)
2061 1 : break;
2062 2682 : wpa_printf(MSG_DEBUG, "%s: free hapd %p",
2063 2682 : __func__, iface->bss[j]);
2064 2682 : os_free(iface->bss[j]);
2065 : }
2066 2682 : hostapd_cleanup_iface(iface);
2067 2682 : }
2068 :
2069 :
2070 2543 : struct hostapd_iface * hostapd_alloc_iface(void)
2071 : {
2072 : struct hostapd_iface *hapd_iface;
2073 :
2074 2543 : hapd_iface = os_zalloc(sizeof(*hapd_iface));
2075 2543 : if (!hapd_iface)
2076 6 : return NULL;
2077 :
2078 2537 : dl_list_init(&hapd_iface->sta_seen);
2079 :
2080 2537 : return hapd_iface;
2081 : }
2082 :
2083 :
2084 : /**
2085 : * hostapd_init - Allocate and initialize per-interface data
2086 : * @config_file: Path to the configuration file
2087 : * Returns: Pointer to the allocated interface data or %NULL on failure
2088 : *
2089 : * This function is used to allocate main data structures for per-interface
2090 : * data. The allocated data buffer will be freed by calling
2091 : * hostapd_cleanup_iface().
2092 : */
2093 54 : struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces,
2094 : const char *config_file)
2095 : {
2096 54 : struct hostapd_iface *hapd_iface = NULL;
2097 54 : struct hostapd_config *conf = NULL;
2098 : struct hostapd_data *hapd;
2099 : size_t i;
2100 :
2101 54 : hapd_iface = hostapd_alloc_iface();
2102 54 : if (hapd_iface == NULL)
2103 2 : goto fail;
2104 :
2105 52 : hapd_iface->config_fname = os_strdup(config_file);
2106 52 : if (hapd_iface->config_fname == NULL)
2107 1 : goto fail;
2108 :
2109 51 : conf = interfaces->config_read_cb(hapd_iface->config_fname);
2110 51 : if (conf == NULL)
2111 9 : goto fail;
2112 42 : hapd_iface->conf = conf;
2113 :
2114 42 : hapd_iface->num_bss = conf->num_bss;
2115 42 : hapd_iface->bss = os_calloc(conf->num_bss,
2116 : sizeof(struct hostapd_data *));
2117 42 : if (hapd_iface->bss == NULL)
2118 0 : goto fail;
2119 :
2120 84 : for (i = 0; i < conf->num_bss; i++) {
2121 84 : hapd = hapd_iface->bss[i] =
2122 42 : hostapd_alloc_bss_data(hapd_iface, conf,
2123 42 : conf->bss[i]);
2124 42 : if (hapd == NULL)
2125 0 : goto fail;
2126 42 : hapd->msg_ctx = hapd;
2127 : }
2128 :
2129 42 : return hapd_iface;
2130 :
2131 : fail:
2132 12 : wpa_printf(MSG_ERROR, "Failed to set up interface with %s",
2133 : config_file);
2134 12 : if (conf)
2135 0 : hostapd_config_free(conf);
2136 12 : if (hapd_iface) {
2137 10 : os_free(hapd_iface->config_fname);
2138 10 : os_free(hapd_iface->bss);
2139 10 : wpa_printf(MSG_DEBUG, "%s: free iface %p",
2140 : __func__, hapd_iface);
2141 10 : os_free(hapd_iface);
2142 : }
2143 12 : return NULL;
2144 : }
2145 :
2146 :
2147 38 : static int ifname_in_use(struct hapd_interfaces *interfaces, const char *ifname)
2148 : {
2149 : size_t i, j;
2150 :
2151 77 : for (i = 0; i < interfaces->count; i++) {
2152 40 : struct hostapd_iface *iface = interfaces->iface[i];
2153 208 : for (j = 0; j < iface->num_bss; j++) {
2154 169 : struct hostapd_data *hapd = iface->bss[j];
2155 169 : if (os_strcmp(ifname, hapd->conf->iface) == 0)
2156 1 : return 1;
2157 : }
2158 : }
2159 :
2160 37 : return 0;
2161 : }
2162 :
2163 :
2164 : /**
2165 : * hostapd_interface_init_bss - Read configuration file and init BSS data
2166 : *
2167 : * This function is used to parse configuration file for a BSS. This BSS is
2168 : * added to an existing interface sharing the same radio (if any) or a new
2169 : * interface is created if this is the first interface on a radio. This
2170 : * allocate memory for the BSS. No actual driver operations are started.
2171 : *
2172 : * This is similar to hostapd_interface_init(), but for a case where the
2173 : * configuration is used to add a single BSS instead of all BSSes for a radio.
2174 : */
2175 : struct hostapd_iface *
2176 56 : hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy,
2177 : const char *config_fname, int debug)
2178 : {
2179 56 : struct hostapd_iface *new_iface = NULL, *iface = NULL;
2180 : struct hostapd_data *hapd;
2181 : int k;
2182 : size_t i, bss_idx;
2183 :
2184 56 : if (!phy || !*phy)
2185 0 : return NULL;
2186 :
2187 64 : for (i = 0; i < interfaces->count; i++) {
2188 47 : if (os_strcmp(interfaces->iface[i]->phy, phy) == 0) {
2189 39 : iface = interfaces->iface[i];
2190 39 : break;
2191 : }
2192 : }
2193 :
2194 56 : wpa_printf(MSG_INFO, "Configuration file: %s (phy %s)%s",
2195 : config_fname, phy, iface ? "" : " --> new PHY");
2196 56 : if (iface) {
2197 : struct hostapd_config *conf;
2198 : struct hostapd_bss_config **tmp_conf;
2199 : struct hostapd_data **tmp_bss;
2200 : struct hostapd_bss_config *bss;
2201 : const char *ifname;
2202 :
2203 : /* Add new BSS to existing iface */
2204 39 : conf = interfaces->config_read_cb(config_fname);
2205 39 : if (conf == NULL)
2206 1 : return NULL;
2207 38 : if (conf->num_bss > 1) {
2208 0 : wpa_printf(MSG_ERROR, "Multiple BSSes specified in BSS-config");
2209 0 : hostapd_config_free(conf);
2210 0 : return NULL;
2211 : }
2212 :
2213 38 : ifname = conf->bss[0]->iface;
2214 38 : if (ifname[0] != '\0' && ifname_in_use(interfaces, ifname)) {
2215 1 : wpa_printf(MSG_ERROR,
2216 : "Interface name %s already in use", ifname);
2217 1 : hostapd_config_free(conf);
2218 1 : return NULL;
2219 : }
2220 :
2221 74 : tmp_conf = os_realloc_array(
2222 74 : iface->conf->bss, iface->conf->num_bss + 1,
2223 : sizeof(struct hostapd_bss_config *));
2224 37 : tmp_bss = os_realloc_array(iface->bss, iface->num_bss + 1,
2225 : sizeof(struct hostapd_data *));
2226 37 : if (tmp_bss)
2227 37 : iface->bss = tmp_bss;
2228 37 : if (tmp_conf) {
2229 37 : iface->conf->bss = tmp_conf;
2230 37 : iface->conf->last_bss = tmp_conf[0];
2231 : }
2232 37 : if (tmp_bss == NULL || tmp_conf == NULL) {
2233 0 : hostapd_config_free(conf);
2234 0 : return NULL;
2235 : }
2236 37 : bss = iface->conf->bss[iface->conf->num_bss] = conf->bss[0];
2237 37 : iface->conf->num_bss++;
2238 :
2239 37 : hapd = hostapd_alloc_bss_data(iface, iface->conf, bss);
2240 37 : if (hapd == NULL) {
2241 0 : iface->conf->num_bss--;
2242 0 : hostapd_config_free(conf);
2243 0 : return NULL;
2244 : }
2245 37 : iface->conf->last_bss = bss;
2246 37 : iface->bss[iface->num_bss] = hapd;
2247 37 : hapd->msg_ctx = hapd;
2248 :
2249 37 : bss_idx = iface->num_bss++;
2250 37 : conf->num_bss--;
2251 37 : conf->bss[0] = NULL;
2252 37 : hostapd_config_free(conf);
2253 : } else {
2254 : /* Add a new iface with the first BSS */
2255 17 : new_iface = iface = hostapd_init(interfaces, config_fname);
2256 17 : if (!iface)
2257 3 : return NULL;
2258 14 : os_strlcpy(iface->phy, phy, sizeof(iface->phy));
2259 14 : iface->interfaces = interfaces;
2260 14 : bss_idx = 0;
2261 : }
2262 :
2263 51 : for (k = 0; k < debug; k++) {
2264 0 : if (iface->bss[bss_idx]->conf->logger_stdout_level > 0)
2265 0 : iface->bss[bss_idx]->conf->logger_stdout_level--;
2266 : }
2267 :
2268 51 : if (iface->conf->bss[bss_idx]->iface[0] == '\0' &&
2269 0 : !hostapd_drv_none(iface->bss[bss_idx])) {
2270 0 : wpa_printf(MSG_ERROR, "Interface name not specified in %s",
2271 : config_fname);
2272 0 : if (new_iface)
2273 0 : hostapd_interface_deinit_free(new_iface);
2274 0 : return NULL;
2275 : }
2276 :
2277 51 : return iface;
2278 : }
2279 :
2280 :
2281 2051 : void hostapd_interface_deinit_free(struct hostapd_iface *iface)
2282 : {
2283 : const struct wpa_driver_ops *driver;
2284 : void *drv_priv;
2285 :
2286 2051 : wpa_printf(MSG_DEBUG, "%s(%p)", __func__, iface);
2287 2051 : if (iface == NULL)
2288 2051 : return;
2289 4102 : wpa_printf(MSG_DEBUG, "%s: num_bss=%u conf->num_bss=%u",
2290 2051 : __func__, (unsigned int) iface->num_bss,
2291 2051 : (unsigned int) iface->conf->num_bss);
2292 2051 : driver = iface->bss[0]->driver;
2293 2051 : drv_priv = iface->bss[0]->drv_priv;
2294 2051 : hostapd_interface_deinit(iface);
2295 2051 : wpa_printf(MSG_DEBUG, "%s: driver=%p drv_priv=%p -> hapd_deinit",
2296 : __func__, driver, drv_priv);
2297 2051 : if (driver && driver->hapd_deinit && drv_priv) {
2298 1807 : driver->hapd_deinit(drv_priv);
2299 1807 : iface->bss[0]->drv_priv = NULL;
2300 : }
2301 2051 : hostapd_interface_free(iface);
2302 : }
2303 :
2304 :
2305 209 : static void hostapd_deinit_driver(const struct wpa_driver_ops *driver,
2306 : void *drv_priv,
2307 : struct hostapd_iface *hapd_iface)
2308 : {
2309 : size_t j;
2310 :
2311 209 : wpa_printf(MSG_DEBUG, "%s: driver=%p drv_priv=%p -> hapd_deinit",
2312 : __func__, driver, drv_priv);
2313 209 : if (driver && driver->hapd_deinit && drv_priv) {
2314 209 : driver->hapd_deinit(drv_priv);
2315 422 : for (j = 0; j < hapd_iface->num_bss; j++) {
2316 213 : wpa_printf(MSG_DEBUG, "%s:bss[%d]->drv_priv=%p",
2317 : __func__, (int) j,
2318 213 : hapd_iface->bss[j]->drv_priv);
2319 213 : if (hapd_iface->bss[j]->drv_priv == drv_priv)
2320 209 : hapd_iface->bss[j]->drv_priv = NULL;
2321 : }
2322 : }
2323 209 : }
2324 :
2325 :
2326 2004 : int hostapd_enable_iface(struct hostapd_iface *hapd_iface)
2327 : {
2328 : size_t j;
2329 :
2330 2004 : if (hapd_iface->bss[0]->drv_priv != NULL) {
2331 0 : wpa_printf(MSG_ERROR, "Interface %s already enabled",
2332 0 : hapd_iface->conf->bss[0]->iface);
2333 0 : return -1;
2334 : }
2335 :
2336 2004 : wpa_printf(MSG_DEBUG, "Enable interface %s",
2337 2004 : hapd_iface->conf->bss[0]->iface);
2338 :
2339 4017 : for (j = 0; j < hapd_iface->num_bss; j++)
2340 2013 : hostapd_set_security_params(hapd_iface->conf->bss[j], 1);
2341 2004 : if (hostapd_config_check(hapd_iface->conf, 1) < 0) {
2342 8 : wpa_printf(MSG_INFO, "Invalid configuration - cannot enable");
2343 8 : return -1;
2344 : }
2345 :
2346 3992 : if (hapd_iface->interfaces == NULL ||
2347 3992 : hapd_iface->interfaces->driver_init == NULL ||
2348 1996 : hapd_iface->interfaces->driver_init(hapd_iface))
2349 13 : return -1;
2350 :
2351 1983 : if (hostapd_setup_interface(hapd_iface)) {
2352 16 : hostapd_deinit_driver(hapd_iface->bss[0]->driver,
2353 16 : hapd_iface->bss[0]->drv_priv,
2354 : hapd_iface);
2355 16 : return -1;
2356 : }
2357 :
2358 1967 : return 0;
2359 : }
2360 :
2361 :
2362 2 : int hostapd_reload_iface(struct hostapd_iface *hapd_iface)
2363 : {
2364 : size_t j;
2365 :
2366 2 : wpa_printf(MSG_DEBUG, "Reload interface %s",
2367 2 : hapd_iface->conf->bss[0]->iface);
2368 4 : for (j = 0; j < hapd_iface->num_bss; j++)
2369 2 : hostapd_set_security_params(hapd_iface->conf->bss[j], 1);
2370 2 : if (hostapd_config_check(hapd_iface->conf, 1) < 0) {
2371 0 : wpa_printf(MSG_ERROR, "Updated configuration is invalid");
2372 0 : return -1;
2373 : }
2374 2 : hostapd_clear_old(hapd_iface);
2375 4 : for (j = 0; j < hapd_iface->num_bss; j++)
2376 2 : hostapd_reload_bss(hapd_iface->bss[j]);
2377 :
2378 2 : return 0;
2379 : }
2380 :
2381 :
2382 198 : int hostapd_disable_iface(struct hostapd_iface *hapd_iface)
2383 : {
2384 : size_t j;
2385 : const struct wpa_driver_ops *driver;
2386 : void *drv_priv;
2387 :
2388 198 : if (hapd_iface == NULL)
2389 0 : return -1;
2390 :
2391 198 : if (hapd_iface->bss[0]->drv_priv == NULL) {
2392 6 : wpa_printf(MSG_INFO, "Interface %s already disabled",
2393 6 : hapd_iface->conf->bss[0]->iface);
2394 6 : return -1;
2395 : }
2396 :
2397 192 : wpa_msg(hapd_iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
2398 192 : driver = hapd_iface->bss[0]->driver;
2399 192 : drv_priv = hapd_iface->bss[0]->drv_priv;
2400 :
2401 192 : hapd_iface->driver_ap_teardown =
2402 192 : !!(hapd_iface->drv_flags &
2403 : WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
2404 :
2405 : /* same as hostapd_interface_deinit without deinitializing ctrl-iface */
2406 388 : for (j = 0; j < hapd_iface->num_bss; j++) {
2407 196 : struct hostapd_data *hapd = hapd_iface->bss[j];
2408 196 : hostapd_bss_deinit_no_free(hapd);
2409 196 : hostapd_free_hapd_data(hapd);
2410 : }
2411 :
2412 192 : hostapd_deinit_driver(driver, drv_priv, hapd_iface);
2413 :
2414 : /* From hostapd_cleanup_iface: These were initialized in
2415 : * hostapd_setup_interface and hostapd_setup_interface_complete
2416 : */
2417 192 : hostapd_cleanup_iface_partial(hapd_iface);
2418 :
2419 192 : wpa_printf(MSG_DEBUG, "Interface %s disabled",
2420 192 : hapd_iface->bss[0]->conf->iface);
2421 192 : hostapd_set_state(hapd_iface, HAPD_IFACE_DISABLED);
2422 192 : return 0;
2423 : }
2424 :
2425 :
2426 : static struct hostapd_iface *
2427 2051 : hostapd_iface_alloc(struct hapd_interfaces *interfaces)
2428 : {
2429 : struct hostapd_iface **iface, *hapd_iface;
2430 :
2431 2051 : iface = os_realloc_array(interfaces->iface, interfaces->count + 1,
2432 : sizeof(struct hostapd_iface *));
2433 2051 : if (iface == NULL)
2434 4 : return NULL;
2435 2047 : interfaces->iface = iface;
2436 4094 : hapd_iface = interfaces->iface[interfaces->count] =
2437 2047 : hostapd_alloc_iface();
2438 2047 : if (hapd_iface == NULL) {
2439 4 : wpa_printf(MSG_ERROR, "%s: Failed to allocate memory for "
2440 : "the interface", __func__);
2441 4 : return NULL;
2442 : }
2443 2043 : interfaces->count++;
2444 2043 : hapd_iface->interfaces = interfaces;
2445 :
2446 2043 : return hapd_iface;
2447 : }
2448 :
2449 :
2450 : static struct hostapd_config *
2451 2038 : hostapd_config_alloc(struct hapd_interfaces *interfaces, const char *ifname,
2452 : const char *ctrl_iface, const char *driver)
2453 : {
2454 : struct hostapd_bss_config *bss;
2455 : struct hostapd_config *conf;
2456 :
2457 : /* Allocates memory for bss and conf */
2458 2038 : conf = hostapd_config_defaults();
2459 2038 : if (conf == NULL) {
2460 17 : wpa_printf(MSG_ERROR, "%s: Failed to allocate memory for "
2461 : "configuration", __func__);
2462 17 : return NULL;
2463 : }
2464 :
2465 2021 : if (driver) {
2466 : int j;
2467 :
2468 1 : for (j = 0; wpa_drivers[j]; j++) {
2469 1 : if (os_strcmp(driver, wpa_drivers[j]->name) == 0) {
2470 1 : conf->driver = wpa_drivers[j];
2471 1 : goto skip;
2472 : }
2473 : }
2474 :
2475 0 : wpa_printf(MSG_ERROR,
2476 : "Invalid/unknown driver '%s' - registering the default driver",
2477 : driver);
2478 : }
2479 :
2480 2020 : conf->driver = wpa_drivers[0];
2481 2020 : if (conf->driver == NULL) {
2482 0 : wpa_printf(MSG_ERROR, "No driver wrappers registered!");
2483 0 : hostapd_config_free(conf);
2484 0 : return NULL;
2485 : }
2486 :
2487 : skip:
2488 2021 : bss = conf->last_bss = conf->bss[0];
2489 :
2490 2021 : os_strlcpy(bss->iface, ifname, sizeof(bss->iface));
2491 2021 : bss->ctrl_interface = os_strdup(ctrl_iface);
2492 2021 : if (bss->ctrl_interface == NULL) {
2493 3 : hostapd_config_free(conf);
2494 3 : return NULL;
2495 : }
2496 :
2497 : /* Reading configuration file skipped, will be done in SET!
2498 : * From reading the configuration till the end has to be done in
2499 : * SET
2500 : */
2501 2018 : return conf;
2502 : }
2503 :
2504 :
2505 2023 : static int hostapd_data_alloc(struct hostapd_iface *hapd_iface,
2506 : struct hostapd_config *conf)
2507 : {
2508 : size_t i;
2509 : struct hostapd_data *hapd;
2510 :
2511 2023 : hapd_iface->bss = os_calloc(conf->num_bss,
2512 : sizeof(struct hostapd_data *));
2513 2023 : if (hapd_iface->bss == NULL)
2514 3 : return -1;
2515 :
2516 4044 : for (i = 0; i < conf->num_bss; i++) {
2517 4056 : hapd = hapd_iface->bss[i] =
2518 2028 : hostapd_alloc_bss_data(hapd_iface, conf, conf->bss[i]);
2519 2028 : if (hapd == NULL) {
2520 8 : while (i > 0) {
2521 0 : i--;
2522 0 : os_free(hapd_iface->bss[i]);
2523 0 : hapd_iface->bss[i] = NULL;
2524 : }
2525 4 : os_free(hapd_iface->bss);
2526 4 : hapd_iface->bss = NULL;
2527 4 : return -1;
2528 : }
2529 2024 : hapd->msg_ctx = hapd;
2530 : }
2531 :
2532 2016 : hapd_iface->conf = conf;
2533 2016 : hapd_iface->num_bss = conf->num_bss;
2534 :
2535 2016 : return 0;
2536 : }
2537 :
2538 :
2539 2107 : int hostapd_add_iface(struct hapd_interfaces *interfaces, char *buf)
2540 : {
2541 2107 : struct hostapd_config *conf = NULL;
2542 2107 : struct hostapd_iface *hapd_iface = NULL, *new_iface = NULL;
2543 : struct hostapd_data *hapd;
2544 : char *ptr;
2545 : size_t i, j;
2546 2107 : const char *conf_file = NULL, *phy_name = NULL;
2547 :
2548 2107 : if (os_strncmp(buf, "bss_config=", 11) == 0) {
2549 : char *pos;
2550 56 : phy_name = buf + 11;
2551 56 : pos = os_strchr(phy_name, ':');
2552 56 : if (!pos)
2553 0 : return -1;
2554 56 : *pos++ = '\0';
2555 56 : conf_file = pos;
2556 56 : if (!os_strlen(conf_file))
2557 0 : return -1;
2558 :
2559 56 : hapd_iface = hostapd_interface_init_bss(interfaces, phy_name,
2560 : conf_file, 0);
2561 56 : if (!hapd_iface)
2562 5 : return -1;
2563 55 : for (j = 0; j < interfaces->count; j++) {
2564 41 : if (interfaces->iface[j] == hapd_iface)
2565 37 : break;
2566 : }
2567 51 : if (j == interfaces->count) {
2568 : struct hostapd_iface **tmp;
2569 14 : tmp = os_realloc_array(interfaces->iface,
2570 14 : interfaces->count + 1,
2571 : sizeof(struct hostapd_iface *));
2572 14 : if (!tmp) {
2573 0 : hostapd_interface_deinit_free(hapd_iface);
2574 0 : return -1;
2575 : }
2576 14 : interfaces->iface = tmp;
2577 14 : interfaces->iface[interfaces->count++] = hapd_iface;
2578 14 : new_iface = hapd_iface;
2579 : }
2580 :
2581 51 : if (new_iface) {
2582 14 : if (interfaces->driver_init(hapd_iface))
2583 0 : goto fail;
2584 :
2585 14 : if (hostapd_setup_interface(hapd_iface)) {
2586 2 : hostapd_deinit_driver(
2587 1 : hapd_iface->bss[0]->driver,
2588 1 : hapd_iface->bss[0]->drv_priv,
2589 : hapd_iface);
2590 1 : goto fail;
2591 : }
2592 : } else {
2593 : /* Assign new BSS with bss[0]'s driver info */
2594 37 : hapd = hapd_iface->bss[hapd_iface->num_bss - 1];
2595 37 : hapd->driver = hapd_iface->bss[0]->driver;
2596 37 : hapd->drv_priv = hapd_iface->bss[0]->drv_priv;
2597 37 : os_memcpy(hapd->own_addr, hapd_iface->bss[0]->own_addr,
2598 : ETH_ALEN);
2599 :
2600 74 : if (start_ctrl_iface_bss(hapd) < 0 ||
2601 71 : (hapd_iface->state == HAPD_IFACE_ENABLED &&
2602 34 : hostapd_setup_bss(hapd, -1))) {
2603 1 : hostapd_cleanup(hapd);
2604 1 : hapd_iface->bss[hapd_iface->num_bss - 1] = NULL;
2605 1 : hapd_iface->conf->num_bss--;
2606 1 : hapd_iface->num_bss--;
2607 1 : wpa_printf(MSG_DEBUG, "%s: free hapd %p %s",
2608 1 : __func__, hapd, hapd->conf->iface);
2609 1 : hostapd_config_free_bss(hapd->conf);
2610 1 : hapd->conf = NULL;
2611 1 : os_free(hapd);
2612 1 : return -1;
2613 : }
2614 : }
2615 49 : return 0;
2616 : }
2617 :
2618 2051 : ptr = os_strchr(buf, ' ');
2619 2051 : if (ptr == NULL)
2620 0 : return -1;
2621 2051 : *ptr++ = '\0';
2622 :
2623 2051 : if (os_strncmp(ptr, "config=", 7) == 0)
2624 5 : conf_file = ptr + 7;
2625 :
2626 2570 : for (i = 0; i < interfaces->count; i++) {
2627 519 : if (!os_strcmp(interfaces->iface[i]->conf->bss[0]->iface,
2628 : buf)) {
2629 0 : wpa_printf(MSG_INFO, "Cannot add interface - it "
2630 : "already exists");
2631 0 : return -1;
2632 : }
2633 : }
2634 :
2635 2051 : hapd_iface = hostapd_iface_alloc(interfaces);
2636 2051 : if (hapd_iface == NULL) {
2637 8 : wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
2638 : "for interface", __func__);
2639 8 : goto fail;
2640 : }
2641 2043 : new_iface = hapd_iface;
2642 :
2643 2043 : if (conf_file && interfaces->config_read_cb) {
2644 5 : conf = interfaces->config_read_cb(conf_file);
2645 10 : if (conf && conf->bss)
2646 5 : os_strlcpy(conf->bss[0]->iface, buf,
2647 : sizeof(conf->bss[0]->iface));
2648 : } else {
2649 2038 : char *driver = os_strchr(ptr, ' ');
2650 :
2651 2038 : if (driver)
2652 1 : *driver++ = '\0';
2653 2038 : conf = hostapd_config_alloc(interfaces, buf, ptr, driver);
2654 : }
2655 :
2656 2043 : if (conf == NULL || conf->bss == NULL) {
2657 20 : wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
2658 : "for configuration", __func__);
2659 20 : goto fail;
2660 : }
2661 :
2662 2023 : if (hostapd_data_alloc(hapd_iface, conf) < 0) {
2663 7 : wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
2664 : "for hostapd", __func__);
2665 7 : goto fail;
2666 : }
2667 2016 : conf = NULL;
2668 :
2669 2016 : if (start_ctrl_iface(hapd_iface) < 0)
2670 6 : goto fail;
2671 :
2672 2010 : wpa_printf(MSG_INFO, "Add interface '%s'",
2673 2010 : hapd_iface->conf->bss[0]->iface);
2674 :
2675 2010 : return 0;
2676 :
2677 : fail:
2678 42 : if (conf)
2679 7 : hostapd_config_free(conf);
2680 42 : if (hapd_iface) {
2681 34 : if (hapd_iface->bss) {
2682 14 : for (i = 0; i < hapd_iface->num_bss; i++) {
2683 7 : hapd = hapd_iface->bss[i];
2684 7 : if (!hapd)
2685 0 : continue;
2686 14 : if (hapd_iface->interfaces &&
2687 7 : hapd_iface->interfaces->ctrl_iface_deinit)
2688 7 : hapd_iface->interfaces->
2689 7 : ctrl_iface_deinit(hapd);
2690 7 : wpa_printf(MSG_DEBUG, "%s: free hapd %p (%s)",
2691 7 : __func__, hapd_iface->bss[i],
2692 7 : hapd->conf->iface);
2693 7 : hostapd_cleanup(hapd);
2694 7 : os_free(hapd);
2695 7 : hapd_iface->bss[i] = NULL;
2696 : }
2697 7 : os_free(hapd_iface->bss);
2698 7 : hapd_iface->bss = NULL;
2699 : }
2700 34 : if (new_iface) {
2701 34 : interfaces->count--;
2702 34 : interfaces->iface[interfaces->count] = NULL;
2703 : }
2704 34 : hostapd_cleanup_iface(hapd_iface);
2705 : }
2706 42 : return -1;
2707 : }
2708 :
2709 :
2710 41 : static int hostapd_remove_bss(struct hostapd_iface *iface, unsigned int idx)
2711 : {
2712 : size_t i;
2713 :
2714 41 : wpa_printf(MSG_INFO, "Remove BSS '%s'", iface->conf->bss[idx]->iface);
2715 :
2716 : /* Remove hostapd_data only if it has already been initialized */
2717 41 : if (idx < iface->num_bss) {
2718 39 : struct hostapd_data *hapd = iface->bss[idx];
2719 :
2720 39 : hostapd_bss_deinit(hapd);
2721 39 : wpa_printf(MSG_DEBUG, "%s: free hapd %p (%s)",
2722 39 : __func__, hapd, hapd->conf->iface);
2723 39 : hostapd_config_free_bss(hapd->conf);
2724 39 : hapd->conf = NULL;
2725 39 : os_free(hapd);
2726 :
2727 39 : iface->num_bss--;
2728 :
2729 162 : for (i = idx; i < iface->num_bss; i++)
2730 123 : iface->bss[i] = iface->bss[i + 1];
2731 : } else {
2732 2 : hostapd_config_free_bss(iface->conf->bss[idx]);
2733 2 : iface->conf->bss[idx] = NULL;
2734 : }
2735 :
2736 41 : iface->conf->num_bss--;
2737 164 : for (i = idx; i < iface->conf->num_bss; i++)
2738 123 : iface->conf->bss[i] = iface->conf->bss[i + 1];
2739 :
2740 41 : return 0;
2741 : }
2742 :
2743 :
2744 10292 : int hostapd_remove_iface(struct hapd_interfaces *interfaces, char *buf)
2745 : {
2746 : struct hostapd_iface *hapd_iface;
2747 10292 : size_t i, j, k = 0;
2748 :
2749 14461 : for (i = 0; i < interfaces->count; i++) {
2750 6233 : hapd_iface = interfaces->iface[i];
2751 6233 : if (hapd_iface == NULL)
2752 0 : return -1;
2753 6233 : if (!os_strcmp(hapd_iface->conf->bss[0]->iface, buf)) {
2754 2023 : wpa_printf(MSG_INFO, "Remove interface '%s'", buf);
2755 2023 : hapd_iface->driver_ap_teardown =
2756 2023 : !!(hapd_iface->drv_flags &
2757 : WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
2758 :
2759 2023 : hostapd_interface_deinit_free(hapd_iface);
2760 2023 : k = i;
2761 4337 : while (k < (interfaces->count - 1)) {
2762 582 : interfaces->iface[k] =
2763 291 : interfaces->iface[k + 1];
2764 291 : k++;
2765 : }
2766 2023 : interfaces->count--;
2767 2023 : return 0;
2768 : }
2769 :
2770 8432 : for (j = 0; j < hapd_iface->conf->num_bss; j++) {
2771 4263 : if (!os_strcmp(hapd_iface->conf->bss[j]->iface, buf)) {
2772 41 : hapd_iface->driver_ap_teardown =
2773 41 : !(hapd_iface->drv_flags &
2774 : WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
2775 41 : return hostapd_remove_bss(hapd_iface, j);
2776 : }
2777 : }
2778 : }
2779 8228 : return -1;
2780 : }
2781 :
2782 :
2783 : /**
2784 : * hostapd_new_assoc_sta - Notify that a new station associated with the AP
2785 : * @hapd: Pointer to BSS data
2786 : * @sta: Pointer to the associated STA data
2787 : * @reassoc: 1 to indicate this was a re-association; 0 = first association
2788 : *
2789 : * This function will be called whenever a station associates with the AP. It
2790 : * can be called from ieee802_11.c for drivers that export MLME to hostapd and
2791 : * from drv_callbacks.c based on driver events for drivers that take care of
2792 : * management frames (IEEE 802.11 authentication and association) internally.
2793 : */
2794 4758 : void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
2795 : int reassoc)
2796 : {
2797 4758 : if (hapd->tkip_countermeasures) {
2798 0 : hostapd_drv_sta_deauth(hapd, sta->addr,
2799 : WLAN_REASON_MICHAEL_MIC_FAILURE);
2800 4758 : return;
2801 : }
2802 :
2803 4758 : hostapd_prune_associations(hapd, sta->addr);
2804 4758 : ap_sta_clear_disconnect_timeouts(hapd, sta);
2805 :
2806 : /* IEEE 802.11F (IAPP) */
2807 4758 : if (hapd->conf->ieee802_11f)
2808 4 : iapp_new_station(hapd->iapp, sta);
2809 :
2810 : #ifdef CONFIG_P2P
2811 576 : if (sta->p2p_ie == NULL && !sta->no_p2p_set) {
2812 49 : sta->no_p2p_set = 1;
2813 49 : hapd->num_sta_no_p2p++;
2814 49 : if (hapd->num_sta_no_p2p == 1)
2815 44 : hostapd_p2p_non_p2p_sta_connected(hapd);
2816 : }
2817 : #endif /* CONFIG_P2P */
2818 :
2819 : /* Start accounting here, if IEEE 802.1X and WPA are not used.
2820 : * IEEE 802.1X/WPA code will start accounting after the station has
2821 : * been authorized. */
2822 4758 : if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen) {
2823 764 : ap_sta_set_authorized(hapd, sta, 1);
2824 764 : os_get_reltime(&sta->connected_time);
2825 764 : accounting_sta_start(hapd, sta);
2826 : }
2827 :
2828 : /* Start IEEE 802.1X authentication process for new stations */
2829 4758 : ieee802_1x_new_station(hapd, sta);
2830 4758 : if (reassoc) {
2831 6 : if (sta->auth_alg != WLAN_AUTH_FT &&
2832 3 : !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)))
2833 3 : wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
2834 : } else
2835 4755 : wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
2836 :
2837 4758 : if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
2838 38064 : wpa_printf(MSG_DEBUG,
2839 : "%s: %s: reschedule ap_handle_timer timeout for "
2840 : MACSTR " (%d seconds - ap_max_inactivity)",
2841 33306 : hapd->conf->iface, __func__, MAC2STR(sta->addr),
2842 4758 : hapd->conf->ap_max_inactivity);
2843 4758 : eloop_cancel_timeout(ap_handle_timer, hapd, sta);
2844 4758 : eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
2845 : ap_handle_timer, hapd, sta);
2846 : }
2847 : }
2848 :
2849 :
2850 12669 : const char * hostapd_state_text(enum hostapd_iface_state s)
2851 : {
2852 12669 : switch (s) {
2853 : case HAPD_IFACE_UNINITIALIZED:
2854 2684 : return "UNINITIALIZED";
2855 : case HAPD_IFACE_DISABLED:
2856 3115 : return "DISABLED";
2857 : case HAPD_IFACE_COUNTRY_UPDATE:
2858 756 : return "COUNTRY_UPDATE";
2859 : case HAPD_IFACE_ACS:
2860 32 : return "ACS";
2861 : case HAPD_IFACE_HT_SCAN:
2862 160 : return "HT_SCAN";
2863 : case HAPD_IFACE_DFS:
2864 41 : return "DFS";
2865 : case HAPD_IFACE_ENABLED:
2866 5881 : return "ENABLED";
2867 : }
2868 :
2869 0 : return "UNKNOWN";
2870 : }
2871 :
2872 :
2873 5976 : void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s)
2874 : {
2875 17922 : wpa_printf(MSG_INFO, "%s: interface state %s->%s",
2876 11946 : iface->conf ? iface->conf->bss[0]->iface : "N/A",
2877 : hostapd_state_text(iface->state), hostapd_state_text(s));
2878 5976 : iface->state = s;
2879 5976 : }
2880 :
2881 :
2882 40 : int hostapd_csa_in_progress(struct hostapd_iface *iface)
2883 : {
2884 : unsigned int i;
2885 :
2886 80 : for (i = 0; i < iface->num_bss; i++)
2887 40 : if (iface->bss[i]->csa_in_progress)
2888 0 : return 1;
2889 40 : return 0;
2890 : }
2891 :
2892 :
2893 : #ifdef NEED_AP_MLME
2894 :
2895 58 : static void free_beacon_data(struct beacon_data *beacon)
2896 : {
2897 58 : os_free(beacon->head);
2898 58 : beacon->head = NULL;
2899 58 : os_free(beacon->tail);
2900 58 : beacon->tail = NULL;
2901 58 : os_free(beacon->probe_resp);
2902 58 : beacon->probe_resp = NULL;
2903 58 : os_free(beacon->beacon_ies);
2904 58 : beacon->beacon_ies = NULL;
2905 58 : os_free(beacon->proberesp_ies);
2906 58 : beacon->proberesp_ies = NULL;
2907 58 : os_free(beacon->assocresp_ies);
2908 58 : beacon->assocresp_ies = NULL;
2909 58 : }
2910 :
2911 :
2912 58 : static int hostapd_build_beacon_data(struct hostapd_data *hapd,
2913 : struct beacon_data *beacon)
2914 : {
2915 : struct wpabuf *beacon_extra, *proberesp_extra, *assocresp_extra;
2916 : struct wpa_driver_ap_params params;
2917 : int ret;
2918 :
2919 58 : os_memset(beacon, 0, sizeof(*beacon));
2920 58 : ret = ieee802_11_build_ap_params(hapd, ¶ms);
2921 58 : if (ret < 0)
2922 0 : return ret;
2923 :
2924 58 : ret = hostapd_build_ap_extra_ies(hapd, &beacon_extra,
2925 : &proberesp_extra,
2926 : &assocresp_extra);
2927 58 : if (ret)
2928 0 : goto free_ap_params;
2929 :
2930 58 : ret = -1;
2931 58 : beacon->head = os_malloc(params.head_len);
2932 58 : if (!beacon->head)
2933 0 : goto free_ap_extra_ies;
2934 :
2935 58 : os_memcpy(beacon->head, params.head, params.head_len);
2936 58 : beacon->head_len = params.head_len;
2937 :
2938 58 : beacon->tail = os_malloc(params.tail_len);
2939 58 : if (!beacon->tail)
2940 0 : goto free_beacon;
2941 :
2942 58 : os_memcpy(beacon->tail, params.tail, params.tail_len);
2943 58 : beacon->tail_len = params.tail_len;
2944 :
2945 58 : if (params.proberesp != NULL) {
2946 0 : beacon->probe_resp = os_malloc(params.proberesp_len);
2947 0 : if (!beacon->probe_resp)
2948 0 : goto free_beacon;
2949 :
2950 0 : os_memcpy(beacon->probe_resp, params.proberesp,
2951 : params.proberesp_len);
2952 0 : beacon->probe_resp_len = params.proberesp_len;
2953 : }
2954 :
2955 : /* copy the extra ies */
2956 58 : if (beacon_extra) {
2957 58 : beacon->beacon_ies = os_malloc(wpabuf_len(beacon_extra));
2958 58 : if (!beacon->beacon_ies)
2959 0 : goto free_beacon;
2960 :
2961 58 : os_memcpy(beacon->beacon_ies,
2962 : beacon_extra->buf, wpabuf_len(beacon_extra));
2963 58 : beacon->beacon_ies_len = wpabuf_len(beacon_extra);
2964 : }
2965 :
2966 58 : if (proberesp_extra) {
2967 58 : beacon->proberesp_ies =
2968 58 : os_malloc(wpabuf_len(proberesp_extra));
2969 58 : if (!beacon->proberesp_ies)
2970 0 : goto free_beacon;
2971 :
2972 58 : os_memcpy(beacon->proberesp_ies, proberesp_extra->buf,
2973 : wpabuf_len(proberesp_extra));
2974 58 : beacon->proberesp_ies_len = wpabuf_len(proberesp_extra);
2975 : }
2976 :
2977 58 : if (assocresp_extra) {
2978 58 : beacon->assocresp_ies =
2979 58 : os_malloc(wpabuf_len(assocresp_extra));
2980 58 : if (!beacon->assocresp_ies)
2981 0 : goto free_beacon;
2982 :
2983 58 : os_memcpy(beacon->assocresp_ies, assocresp_extra->buf,
2984 : wpabuf_len(assocresp_extra));
2985 58 : beacon->assocresp_ies_len = wpabuf_len(assocresp_extra);
2986 : }
2987 :
2988 58 : ret = 0;
2989 : free_beacon:
2990 : /* if the function fails, the caller should not free beacon data */
2991 58 : if (ret)
2992 0 : free_beacon_data(beacon);
2993 :
2994 : free_ap_extra_ies:
2995 58 : hostapd_free_ap_extra_ies(hapd, beacon_extra, proberesp_extra,
2996 : assocresp_extra);
2997 : free_ap_params:
2998 58 : ieee802_11_free_ap_params(¶ms);
2999 58 : return ret;
3000 : }
3001 :
3002 :
3003 : /*
3004 : * TODO: This flow currently supports only changing channel and width within
3005 : * the same hw_mode. Any other changes to MAC parameters or provided settings
3006 : * are not supported.
3007 : */
3008 58 : static int hostapd_change_config_freq(struct hostapd_data *hapd,
3009 : struct hostapd_config *conf,
3010 : struct hostapd_freq_params *params,
3011 : struct hostapd_freq_params *old_params)
3012 : {
3013 : int channel;
3014 :
3015 58 : if (!params->channel) {
3016 : /* check if the new channel is supported by hw */
3017 0 : params->channel = hostapd_hw_get_channel(hapd, params->freq);
3018 : }
3019 :
3020 58 : channel = params->channel;
3021 58 : if (!channel)
3022 0 : return -1;
3023 :
3024 : /* if a pointer to old_params is provided we save previous state */
3025 87 : if (old_params &&
3026 174 : hostapd_set_freq_params(old_params, conf->hw_mode,
3027 29 : hostapd_hw_get_freq(hapd, conf->channel),
3028 29 : conf->channel, conf->ieee80211n,
3029 : conf->ieee80211ac,
3030 : conf->secondary_channel,
3031 29 : conf->vht_oper_chwidth,
3032 29 : conf->vht_oper_centr_freq_seg0_idx,
3033 29 : conf->vht_oper_centr_freq_seg1_idx,
3034 : conf->vht_capab))
3035 0 : return -1;
3036 :
3037 58 : switch (params->bandwidth) {
3038 : case 0:
3039 : case 20:
3040 : case 40:
3041 55 : conf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
3042 55 : break;
3043 : case 80:
3044 3 : if (params->center_freq2)
3045 0 : conf->vht_oper_chwidth = VHT_CHANWIDTH_80P80MHZ;
3046 : else
3047 3 : conf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
3048 3 : break;
3049 : case 160:
3050 0 : conf->vht_oper_chwidth = VHT_CHANWIDTH_160MHZ;
3051 0 : break;
3052 : default:
3053 0 : return -1;
3054 : }
3055 :
3056 58 : conf->channel = channel;
3057 58 : conf->ieee80211n = params->ht_enabled;
3058 58 : conf->secondary_channel = params->sec_channel_offset;
3059 58 : ieee80211_freq_to_chan(params->center_freq1,
3060 : &conf->vht_oper_centr_freq_seg0_idx);
3061 58 : ieee80211_freq_to_chan(params->center_freq2,
3062 : &conf->vht_oper_centr_freq_seg1_idx);
3063 :
3064 : /* TODO: maybe call here hostapd_config_check here? */
3065 :
3066 58 : return 0;
3067 : }
3068 :
3069 :
3070 36 : static int hostapd_fill_csa_settings(struct hostapd_data *hapd,
3071 : struct csa_settings *settings)
3072 : {
3073 36 : struct hostapd_iface *iface = hapd->iface;
3074 : struct hostapd_freq_params old_freq;
3075 : int ret;
3076 : u8 chan, vht_bandwidth;
3077 :
3078 36 : os_memset(&old_freq, 0, sizeof(old_freq));
3079 36 : if (!iface || !iface->freq || hapd->csa_in_progress)
3080 0 : return -1;
3081 :
3082 36 : switch (settings->freq_params.bandwidth) {
3083 : case 80:
3084 1 : if (settings->freq_params.center_freq2)
3085 0 : vht_bandwidth = VHT_CHANWIDTH_80P80MHZ;
3086 : else
3087 1 : vht_bandwidth = VHT_CHANWIDTH_80MHZ;
3088 1 : break;
3089 : case 160:
3090 0 : vht_bandwidth = VHT_CHANWIDTH_160MHZ;
3091 0 : break;
3092 : default:
3093 35 : vht_bandwidth = VHT_CHANWIDTH_USE_HT;
3094 35 : break;
3095 : }
3096 :
3097 72 : if (ieee80211_freq_to_channel_ext(
3098 36 : settings->freq_params.freq,
3099 : settings->freq_params.sec_channel_offset,
3100 : vht_bandwidth,
3101 36 : &hapd->iface->cs_oper_class,
3102 : &chan) == NUM_HOSTAPD_MODES) {
3103 7 : wpa_printf(MSG_DEBUG,
3104 : "invalid frequency for channel switch (freq=%d, sec_channel_offset=%d, vht_enabled=%d)",
3105 : settings->freq_params.freq,
3106 : settings->freq_params.sec_channel_offset,
3107 : settings->freq_params.vht_enabled);
3108 7 : return -1;
3109 : }
3110 :
3111 29 : settings->freq_params.channel = chan;
3112 :
3113 29 : ret = hostapd_change_config_freq(iface->bss[0], iface->conf,
3114 : &settings->freq_params,
3115 : &old_freq);
3116 29 : if (ret)
3117 0 : return ret;
3118 :
3119 29 : ret = hostapd_build_beacon_data(hapd, &settings->beacon_after);
3120 :
3121 : /* change back the configuration */
3122 29 : hostapd_change_config_freq(iface->bss[0], iface->conf,
3123 : &old_freq, NULL);
3124 :
3125 29 : if (ret)
3126 0 : return ret;
3127 :
3128 : /* set channel switch parameters for csa ie */
3129 29 : hapd->cs_freq_params = settings->freq_params;
3130 29 : hapd->cs_count = settings->cs_count;
3131 29 : hapd->cs_block_tx = settings->block_tx;
3132 :
3133 29 : ret = hostapd_build_beacon_data(hapd, &settings->beacon_csa);
3134 29 : if (ret) {
3135 0 : free_beacon_data(&settings->beacon_after);
3136 0 : return ret;
3137 : }
3138 :
3139 29 : settings->counter_offset_beacon[0] = hapd->cs_c_off_beacon;
3140 29 : settings->counter_offset_presp[0] = hapd->cs_c_off_proberesp;
3141 29 : settings->counter_offset_beacon[1] = hapd->cs_c_off_ecsa_beacon;
3142 29 : settings->counter_offset_presp[1] = hapd->cs_c_off_ecsa_proberesp;
3143 :
3144 29 : return 0;
3145 : }
3146 :
3147 :
3148 29 : void hostapd_cleanup_cs_params(struct hostapd_data *hapd)
3149 : {
3150 29 : os_memset(&hapd->cs_freq_params, 0, sizeof(hapd->cs_freq_params));
3151 29 : hapd->cs_count = 0;
3152 29 : hapd->cs_block_tx = 0;
3153 29 : hapd->cs_c_off_beacon = 0;
3154 29 : hapd->cs_c_off_proberesp = 0;
3155 29 : hapd->csa_in_progress = 0;
3156 29 : hapd->cs_c_off_ecsa_beacon = 0;
3157 29 : hapd->cs_c_off_ecsa_proberesp = 0;
3158 29 : }
3159 :
3160 :
3161 37 : int hostapd_switch_channel(struct hostapd_data *hapd,
3162 : struct csa_settings *settings)
3163 : {
3164 : int ret;
3165 :
3166 37 : if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
3167 1 : wpa_printf(MSG_INFO, "CSA is not supported");
3168 1 : return -1;
3169 : }
3170 :
3171 36 : ret = hostapd_fill_csa_settings(hapd, settings);
3172 36 : if (ret)
3173 7 : return ret;
3174 :
3175 29 : ret = hostapd_drv_switch_channel(hapd, settings);
3176 29 : free_beacon_data(&settings->beacon_csa);
3177 29 : free_beacon_data(&settings->beacon_after);
3178 :
3179 29 : if (ret) {
3180 : /* if we failed, clean cs parameters */
3181 6 : hostapd_cleanup_cs_params(hapd);
3182 6 : return ret;
3183 : }
3184 :
3185 23 : hapd->csa_in_progress = 1;
3186 23 : return 0;
3187 : }
3188 :
3189 :
3190 : void
3191 0 : hostapd_switch_channel_fallback(struct hostapd_iface *iface,
3192 : const struct hostapd_freq_params *freq_params)
3193 : {
3194 0 : int vht_seg0_idx = 0, vht_seg1_idx = 0, vht_bw = VHT_CHANWIDTH_USE_HT;
3195 : unsigned int i;
3196 :
3197 0 : wpa_printf(MSG_DEBUG, "Restarting all CSA-related BSSes");
3198 :
3199 0 : if (freq_params->center_freq1)
3200 0 : vht_seg0_idx = 36 + (freq_params->center_freq1 - 5180) / 5;
3201 0 : if (freq_params->center_freq2)
3202 0 : vht_seg1_idx = 36 + (freq_params->center_freq2 - 5180) / 5;
3203 :
3204 0 : switch (freq_params->bandwidth) {
3205 : case 0:
3206 : case 20:
3207 : case 40:
3208 0 : vht_bw = VHT_CHANWIDTH_USE_HT;
3209 0 : break;
3210 : case 80:
3211 0 : if (freq_params->center_freq2)
3212 0 : vht_bw = VHT_CHANWIDTH_80P80MHZ;
3213 : else
3214 0 : vht_bw = VHT_CHANWIDTH_80MHZ;
3215 0 : break;
3216 : case 160:
3217 0 : vht_bw = VHT_CHANWIDTH_160MHZ;
3218 0 : break;
3219 : default:
3220 0 : wpa_printf(MSG_WARNING, "Unknown CSA bandwidth: %d",
3221 : freq_params->bandwidth);
3222 0 : break;
3223 : }
3224 :
3225 0 : iface->freq = freq_params->freq;
3226 0 : iface->conf->channel = freq_params->channel;
3227 0 : iface->conf->secondary_channel = freq_params->sec_channel_offset;
3228 0 : iface->conf->vht_oper_centr_freq_seg0_idx = vht_seg0_idx;
3229 0 : iface->conf->vht_oper_centr_freq_seg1_idx = vht_seg1_idx;
3230 0 : iface->conf->vht_oper_chwidth = vht_bw;
3231 0 : iface->conf->ieee80211n = freq_params->ht_enabled;
3232 0 : iface->conf->ieee80211ac = freq_params->vht_enabled;
3233 :
3234 : /*
3235 : * cs_params must not be cleared earlier because the freq_params
3236 : * argument may actually point to one of these.
3237 : */
3238 0 : for (i = 0; i < iface->num_bss; i++)
3239 0 : hostapd_cleanup_cs_params(iface->bss[i]);
3240 :
3241 0 : hostapd_disable_iface(iface);
3242 0 : hostapd_enable_iface(iface);
3243 0 : }
3244 :
3245 : #endif /* NEED_AP_MLME */
3246 :
3247 :
3248 40985 : struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces,
3249 : const char *ifname)
3250 : {
3251 : size_t i, j;
3252 :
3253 77709 : for (i = 0; i < interfaces->count; i++) {
3254 37531 : struct hostapd_iface *iface = interfaces->iface[i];
3255 :
3256 76121 : for (j = 0; j < iface->num_bss; j++) {
3257 39397 : struct hostapd_data *hapd = iface->bss[j];
3258 :
3259 39397 : if (os_strcmp(ifname, hapd->conf->iface) == 0)
3260 807 : return hapd;
3261 : }
3262 : }
3263 :
3264 40178 : return NULL;
3265 : }
3266 :
3267 :
3268 2272 : void hostapd_periodic_iface(struct hostapd_iface *iface)
3269 : {
3270 : size_t i;
3271 :
3272 2272 : ap_list_timer(iface);
3273 :
3274 4552 : for (i = 0; i < iface->num_bss; i++) {
3275 2280 : struct hostapd_data *hapd = iface->bss[i];
3276 :
3277 2280 : if (!hapd->started)
3278 74 : continue;
3279 :
3280 : #ifndef CONFIG_NO_RADIUS
3281 1933 : hostapd_acl_expire(hapd);
3282 : #endif /* CONFIG_NO_RADIUS */
3283 : }
3284 2272 : }
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