1 /*
2 * hostapd / main()
3 * Copyright (c) 2002-2022, 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 #ifndef CONFIG_NATIVE_WINDOWS
11 #include <syslog.h>
12 #include <grp.h>
13 #endif /* CONFIG_NATIVE_WINDOWS */
14
15 #include "utils/common.h"
16 #include "utils/eloop.h"
17 #include "utils/uuid.h"
18 #include "crypto/crypto.h"
19 #include "crypto/random.h"
20 #include "crypto/tls.h"
21 #include "common/version.h"
22 #include "common/dpp.h"
23 #include "drivers/driver.h"
24 #include "eap_server/eap.h"
25 #include "eap_server/tncs.h"
26 #include "ap/hostapd.h"
27 #include "ap/ap_config.h"
28 #include "ap/ap_drv_ops.h"
29 #include "ap/dpp_hostapd.h"
30 #include "fst/fst.h"
31 #include "config_file.h"
32 #include "eap_register.h"
33 #include "ctrl_iface.h"
34
35
36 struct hapd_global {
37 void **drv_priv;
38 size_t drv_count;
39 };
40
41 static struct hapd_global global;
42
43
44 #ifndef CONFIG_NO_HOSTAPD_LOGGER
hostapd_logger_cb(void * ctx,const u8 * addr,unsigned int module,int level,const char * txt,size_t len)45 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
46 int level, const char *txt, size_t len)
47 {
48 struct hostapd_data *hapd = ctx;
49 char *format, *module_str;
50 int maxlen;
51 int conf_syslog_level, conf_stdout_level;
52 unsigned int conf_syslog, conf_stdout;
53
54 maxlen = len + 100;
55 format = os_malloc(maxlen);
56 if (!format)
57 return;
58
59 if (hapd && hapd->conf) {
60 conf_syslog_level = hapd->conf->logger_syslog_level;
61 conf_stdout_level = hapd->conf->logger_stdout_level;
62 conf_syslog = hapd->conf->logger_syslog;
63 conf_stdout = hapd->conf->logger_stdout;
64 } else {
65 conf_syslog_level = conf_stdout_level = 0;
66 conf_syslog = conf_stdout = (unsigned int) -1;
67 }
68
69 switch (module) {
70 case HOSTAPD_MODULE_IEEE80211:
71 module_str = "IEEE 802.11";
72 break;
73 case HOSTAPD_MODULE_IEEE8021X:
74 module_str = "IEEE 802.1X";
75 break;
76 case HOSTAPD_MODULE_RADIUS:
77 module_str = "RADIUS";
78 break;
79 case HOSTAPD_MODULE_WPA:
80 module_str = "WPA";
81 break;
82 case HOSTAPD_MODULE_DRIVER:
83 module_str = "DRIVER";
84 break;
85 case HOSTAPD_MODULE_MLME:
86 module_str = "MLME";
87 break;
88 default:
89 module_str = NULL;
90 break;
91 }
92
93 if (hapd && hapd->conf && addr)
94 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
95 hapd->conf->iface, MAC2STR(addr),
96 module_str ? " " : "", module_str ? module_str : "",
97 txt);
98 else if (hapd && hapd->conf)
99 os_snprintf(format, maxlen, "%s:%s%s %s",
100 hapd->conf->iface, module_str ? " " : "",
101 module_str ? module_str : "", txt);
102 else if (addr)
103 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
104 MAC2STR(addr), module_str ? " " : "",
105 module_str ? module_str : "", txt);
106 else
107 os_snprintf(format, maxlen, "%s%s%s",
108 module_str ? module_str : "",
109 module_str ? ": " : "", txt);
110
111 #ifdef CONFIG_DEBUG_SYSLOG
112 if (wpa_debug_syslog)
113 conf_stdout = 0;
114 #endif /* CONFIG_DEBUG_SYSLOG */
115 if ((conf_stdout & module) && level >= conf_stdout_level) {
116 wpa_debug_print_timestamp();
117 wpa_printf(MSG_INFO, "%s", format);
118 }
119
120 #ifndef CONFIG_NATIVE_WINDOWS
121 if ((conf_syslog & module) && level >= conf_syslog_level) {
122 int priority;
123 switch (level) {
124 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
125 case HOSTAPD_LEVEL_DEBUG:
126 priority = LOG_DEBUG;
127 break;
128 case HOSTAPD_LEVEL_INFO:
129 priority = LOG_INFO;
130 break;
131 case HOSTAPD_LEVEL_NOTICE:
132 priority = LOG_NOTICE;
133 break;
134 case HOSTAPD_LEVEL_WARNING:
135 priority = LOG_WARNING;
136 break;
137 default:
138 priority = LOG_INFO;
139 break;
140 }
141 syslog(priority, "%s", format);
142 }
143 #endif /* CONFIG_NATIVE_WINDOWS */
144
145 os_free(format);
146 }
147 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
148
149
150 /**
151 * hostapd_driver_init - Preparate driver interface
152 */
hostapd_driver_init(struct hostapd_iface * iface)153 static int hostapd_driver_init(struct hostapd_iface *iface)
154 {
155 struct wpa_init_params params;
156 size_t i;
157 struct hostapd_data *hapd = iface->bss[0];
158 struct hostapd_bss_config *conf = hapd->conf;
159 u8 *b = conf->bssid;
160 struct wpa_driver_capa capa;
161 #ifdef CONFIG_IEEE80211BE
162 struct hostapd_data *h_hapd = NULL;
163 #endif /* CONFIG_IEEE80211BE */
164
165 if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
166 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
167 return -1;
168 }
169
170 #ifdef CONFIG_IEEE80211BE
171 if (conf->mld_ap)
172 h_hapd = hostapd_mld_get_first_bss(hapd);
173
174 if (h_hapd) {
175 hapd->drv_priv = h_hapd->drv_priv;
176 hapd->interface_added = h_hapd->interface_added;
177
178 /*
179 * All interfaces participating in the AP MLD would have
180 * the same MLD address, which is the interface hardware
181 * address, while the interface address would be
182 * derived from the original interface address if BSSID
183 * is not configured, and otherwise it would be the
184 * configured BSSID.
185 */
186 if (is_zero_ether_addr(b)) {
187 os_memcpy(hapd->own_addr, h_hapd->mld->mld_addr,
188 ETH_ALEN);
189 random_mac_addr_keep_oui(hapd->own_addr);
190 } else {
191 os_memcpy(hapd->own_addr, b, ETH_ALEN);
192 }
193
194 hostapd_mld_add_link(hapd);
195 wpa_printf(MSG_DEBUG,
196 "Setup of non first link (%d) BSS of MLD %s",
197 hapd->mld_link_id, hapd->conf->iface);
198
199 goto setup_mld;
200 }
201 #endif /* CONFIG_IEEE80211BE */
202
203 /* Initialize the driver interface */
204 if (is_zero_ether_addr(b))
205 b = NULL;
206
207 os_memset(¶ms, 0, sizeof(params));
208 for (i = 0; wpa_drivers[i]; i++) {
209 if (wpa_drivers[i] != hapd->driver)
210 continue;
211
212 if (global.drv_priv[i] == NULL &&
213 wpa_drivers[i]->global_init) {
214 global.drv_priv[i] =
215 wpa_drivers[i]->global_init(iface->interfaces);
216 if (global.drv_priv[i] == NULL) {
217 wpa_printf(MSG_ERROR, "Failed to initialize "
218 "driver '%s'",
219 wpa_drivers[i]->name);
220 return -1;
221 }
222 }
223
224 params.global_priv = global.drv_priv[i];
225 break;
226 }
227 params.bssid = b;
228 #ifdef CONFIG_IEEE80211BE
229 /*
230 * Use the configured MLD MAC address as the interface hardware address
231 * if this AP is a part of an AP MLD.
232 */
233 if (hapd->conf->mld_ap) {
234 if (!is_zero_ether_addr(hapd->conf->mld_addr))
235 params.bssid = hapd->conf->mld_addr;
236 else
237 params.bssid = NULL;
238 }
239 #endif /* CONFIG_IEEE80211BE */
240
241 params.ifname = hapd->conf->iface;
242 params.driver_params = hapd->iconf->driver_params;
243 params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
244
245 params.num_bridge = hapd->iface->num_bss;
246 params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
247 if (params.bridge == NULL)
248 return -1;
249 for (i = 0; i < hapd->iface->num_bss; i++) {
250 struct hostapd_data *bss = hapd->iface->bss[i];
251 if (bss->conf->bridge[0])
252 params.bridge[i] = bss->conf->bridge;
253 }
254
255 params.own_addr = hapd->own_addr;
256
257 hapd->drv_priv = hapd->driver->hapd_init(hapd, ¶ms);
258 os_free(params.bridge);
259 if (hapd->drv_priv == NULL) {
260 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
261 hapd->driver->name);
262 hapd->driver = NULL;
263 return -1;
264 }
265
266 #ifdef CONFIG_IEEE80211BE
267 /*
268 * This is the first interface added to the AP MLD, so have the
269 * interface hardware address be the MLD address, while the link address
270 * would be derived from the original interface address if BSSID is not
271 * configured, and otherwise it would be the configured BSSID.
272 */
273 if (hapd->conf->mld_ap) {
274 os_memcpy(hapd->mld->mld_addr, hapd->own_addr, ETH_ALEN);
275
276 if (!b)
277 random_mac_addr_keep_oui(hapd->own_addr);
278 else
279 os_memcpy(hapd->own_addr, b, ETH_ALEN);
280
281 hostapd_mld_add_link(hapd);
282 wpa_printf(MSG_DEBUG, "Setup of first link (%d) BSS of MLD %s",
283 hapd->mld_link_id, hapd->conf->iface);
284 }
285
286 setup_mld:
287 #endif /* CONFIG_IEEE80211BE */
288
289 if (hapd->driver->get_capa &&
290 hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
291 struct wowlan_triggers *triggs;
292
293 iface->drv_flags = capa.flags;
294 iface->drv_flags2 = capa.flags2;
295 iface->drv_rrm_flags = capa.rrm_flags;
296 iface->probe_resp_offloads = capa.probe_resp_offloads;
297 /*
298 * Use default extended capa values from per-radio information
299 */
300 iface->extended_capa = capa.extended_capa;
301 iface->extended_capa_mask = capa.extended_capa_mask;
302 iface->extended_capa_len = capa.extended_capa_len;
303 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
304
305 /*
306 * Override extended capa with per-interface type (AP), if
307 * available from the driver.
308 */
309 hostapd_get_ext_capa(iface);
310
311 hostapd_get_mld_capa(iface);
312
313 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
314 if (triggs && hapd->driver->set_wowlan) {
315 if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
316 wpa_printf(MSG_ERROR, "set_wowlan failed");
317 }
318 os_free(triggs);
319
320 iface->mbssid_max_interfaces = capa.mbssid_max_interfaces;
321 iface->ema_max_periodicity = capa.ema_max_periodicity;
322 }
323
324 #ifdef CONFIG_IEEE80211BE
325 if (hapd->conf->mld_ap) {
326 if (!(iface->drv_flags2 & WPA_DRIVER_FLAGS2_MLO)) {
327 wpa_printf(MSG_INFO,
328 "MLD: Not supported by the driver");
329 return -1;
330 }
331
332 /* Initialize the BSS parameter change to 1 */
333 hapd->eht_mld_bss_param_change = 1;
334
335 wpa_printf(MSG_DEBUG,
336 "MLD: Set link_id=%u, mld_addr=" MACSTR
337 ", own_addr=" MACSTR,
338 hapd->mld_link_id, MAC2STR(hapd->mld->mld_addr),
339 MAC2STR(hapd->own_addr));
340
341 hostapd_drv_link_add(hapd, hapd->mld_link_id,
342 hapd->own_addr);
343 }
344 #endif /* CONFIG_IEEE80211BE */
345
346 return 0;
347 }
348
349
350 /**
351 * hostapd_interface_init - Read configuration file and init BSS data
352 *
353 * This function is used to parse configuration file for a full interface (one
354 * or more BSSes sharing the same radio) and allocate memory for the BSS
355 * interfaces. No actual driver operations are started.
356 */
357 static struct hostapd_iface *
hostapd_interface_init(struct hapd_interfaces * interfaces,const char * if_name,const char * config_fname,int debug)358 hostapd_interface_init(struct hapd_interfaces *interfaces, const char *if_name,
359 const char *config_fname, int debug)
360 {
361 struct hostapd_iface *iface;
362 int k;
363
364 wpa_printf(MSG_DEBUG, "Configuration file: %s", config_fname);
365 iface = hostapd_init(interfaces, config_fname);
366 if (!iface)
367 return NULL;
368
369 if (if_name) {
370 os_strlcpy(iface->conf->bss[0]->iface, if_name,
371 sizeof(iface->conf->bss[0]->iface));
372 }
373
374 iface->interfaces = interfaces;
375
376 for (k = 0; k < debug; k++) {
377 if (iface->bss[0]->conf->logger_stdout_level > 0)
378 iface->bss[0]->conf->logger_stdout_level--;
379 }
380
381 if (iface->conf->bss[0]->iface[0] == '\0' &&
382 !hostapd_drv_none(iface->bss[0])) {
383 wpa_printf(MSG_ERROR,
384 "Interface name not specified in %s, nor by '-i' parameter",
385 config_fname);
386 hostapd_interface_deinit_free(iface);
387 return NULL;
388 }
389
390 return iface;
391 }
392
393
394 /**
395 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
396 */
handle_term(int sig,void * signal_ctx)397 static void handle_term(int sig, void *signal_ctx)
398 {
399 wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
400 eloop_terminate();
401 }
402
403
404 #ifndef CONFIG_NATIVE_WINDOWS
405
handle_reload_iface(struct hostapd_iface * iface,void * ctx)406 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
407 {
408 if (hostapd_reload_config(iface) < 0) {
409 wpa_printf(MSG_WARNING, "Failed to read new configuration "
410 "file - continuing with old.");
411 }
412 return 0;
413 }
414
415
416 /**
417 * handle_reload - SIGHUP handler to reload configuration
418 */
handle_reload(int sig,void * signal_ctx)419 static void handle_reload(int sig, void *signal_ctx)
420 {
421 struct hapd_interfaces *interfaces = signal_ctx;
422 wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
423 sig);
424 hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
425 }
426
427
handle_dump_state(int sig,void * signal_ctx)428 static void handle_dump_state(int sig, void *signal_ctx)
429 {
430 /* Not used anymore - ignore signal */
431 }
432 #endif /* CONFIG_NATIVE_WINDOWS */
433
434
hostapd_global_init(struct hapd_interfaces * interfaces,const char * entropy_file)435 static int hostapd_global_init(struct hapd_interfaces *interfaces,
436 const char *entropy_file)
437 {
438 int i;
439
440 os_memset(&global, 0, sizeof(global));
441
442 hostapd_logger_register_cb(hostapd_logger_cb);
443
444 if (eap_server_register_methods()) {
445 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
446 return -1;
447 }
448
449 if (eloop_init()) {
450 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
451 return -1;
452 }
453 interfaces->eloop_initialized = 1;
454
455 random_init(entropy_file);
456
457 #ifndef CONFIG_NATIVE_WINDOWS
458 eloop_register_signal(SIGHUP, handle_reload, interfaces);
459 eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
460 #endif /* CONFIG_NATIVE_WINDOWS */
461 eloop_register_signal_terminate(handle_term, interfaces);
462
463 #ifndef CONFIG_NATIVE_WINDOWS
464 openlog("hostapd", 0, LOG_DAEMON);
465 #endif /* CONFIG_NATIVE_WINDOWS */
466
467 for (i = 0; wpa_drivers[i]; i++)
468 global.drv_count++;
469 if (global.drv_count == 0) {
470 wpa_printf(MSG_ERROR, "No drivers enabled");
471 return -1;
472 }
473 global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
474 if (global.drv_priv == NULL)
475 return -1;
476
477 return 0;
478 }
479
480
hostapd_global_deinit(const char * pid_file,int eloop_initialized)481 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
482 {
483 int i;
484
485 for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
486 if (!global.drv_priv[i])
487 continue;
488 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
489 }
490 os_free(global.drv_priv);
491 global.drv_priv = NULL;
492
493 #ifdef EAP_SERVER_TNC
494 tncs_global_deinit();
495 #endif /* EAP_SERVER_TNC */
496
497 random_deinit();
498
499 if (eloop_initialized)
500 eloop_destroy();
501
502 #ifndef CONFIG_NATIVE_WINDOWS
503 closelog();
504 #endif /* CONFIG_NATIVE_WINDOWS */
505
506 eap_server_unregister_methods();
507
508 os_daemonize_terminate(pid_file);
509 }
510
511
hostapd_global_run(struct hapd_interfaces * ifaces,int daemonize,const char * pid_file)512 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
513 const char *pid_file)
514 {
515 #ifdef EAP_SERVER_TNC
516 int tnc = 0;
517 size_t i, k;
518
519 for (i = 0; !tnc && i < ifaces->count; i++) {
520 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
521 if (ifaces->iface[i]->bss[0]->conf->tnc) {
522 tnc++;
523 break;
524 }
525 }
526 }
527
528 if (tnc && tncs_global_init() < 0) {
529 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
530 return -1;
531 }
532 #endif /* EAP_SERVER_TNC */
533
534 if (daemonize) {
535 if (os_daemonize(pid_file)) {
536 wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
537 return -1;
538 }
539 if (eloop_sock_requeue()) {
540 wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
541 strerror(errno));
542 return -1;
543 }
544 }
545
546 eloop_run();
547
548 return 0;
549 }
550
551
show_version(void)552 static void show_version(void)
553 {
554 fprintf(stderr,
555 "hostapd v%s\n"
556 "User space daemon for IEEE 802.11 AP management,\n"
557 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
558 "Copyright (c) 2002-2024, Jouni Malinen <j@w1.fi> "
559 "and contributors\n",
560 VERSION_STR);
561 }
562
563
usage(void)564 static void usage(void)
565 {
566 show_version();
567 fprintf(stderr,
568 "\n"
569 "usage: hostapd [-hdBKtvq] [-P <PID file>] [-e <entropy file>] "
570 "\\\n"
571 " [-g <global ctrl_iface>] [-G <group>]\\\n"
572 " [-i <comma-separated list of interface names>]\\\n"
573 " <configuration file(s)>\n"
574 "\n"
575 "options:\n"
576 " -h show this usage\n"
577 " -d show more debug messages (-dd for even more)\n"
578 " -B run daemon in the background\n"
579 " -e entropy file\n"
580 " -g global control interface path\n"
581 " -G group for control interfaces\n"
582 " -P PID file\n"
583 " -K include key data in debug messages\n"
584 #ifdef CONFIG_DEBUG_FILE
585 " -f log output to debug file instead of stdout\n"
586 #endif /* CONFIG_DEBUG_FILE */
587 #ifdef CONFIG_DEBUG_LINUX_TRACING
588 " -T record to Linux tracing in addition to logging\n"
589 " (records all messages regardless of debug verbosity)\n"
590 #endif /* CONFIG_DEBUG_LINUX_TRACING */
591 " -i list of interface names to use\n"
592 #ifdef CONFIG_DEBUG_SYSLOG
593 " -s log output to syslog instead of stdout\n"
594 #endif /* CONFIG_DEBUG_SYSLOG */
595 " -S start all the interfaces synchronously\n"
596 " -t include timestamps in some debug messages\n"
597 " -v show hostapd version\n"
598 " -q show less debug messages (-qq for even less)\n");
599
600 exit(1);
601 }
602
603
hostapd_msg_ifname_cb(void * ctx)604 static const char * hostapd_msg_ifname_cb(void *ctx)
605 {
606 struct hostapd_data *hapd = ctx;
607 if (hapd && hapd->conf)
608 return hapd->conf->iface;
609 return NULL;
610 }
611
612
hostapd_get_global_ctrl_iface(struct hapd_interfaces * interfaces,const char * path)613 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
614 const char *path)
615 {
616 #ifndef CONFIG_CTRL_IFACE_UDP
617 char *pos;
618 #endif /* !CONFIG_CTRL_IFACE_UDP */
619
620 os_free(interfaces->global_iface_path);
621 interfaces->global_iface_path = os_strdup(path);
622 if (interfaces->global_iface_path == NULL)
623 return -1;
624
625 #ifndef CONFIG_CTRL_IFACE_UDP
626 pos = os_strrchr(interfaces->global_iface_path, '/');
627 if (pos == NULL) {
628 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
629 "file");
630 os_free(interfaces->global_iface_path);
631 interfaces->global_iface_path = NULL;
632 return -1;
633 }
634
635 *pos = '\0';
636 interfaces->global_iface_name = pos + 1;
637 #endif /* !CONFIG_CTRL_IFACE_UDP */
638
639 return 0;
640 }
641
642
hostapd_get_ctrl_iface_group(struct hapd_interfaces * interfaces,const char * group)643 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
644 const char *group)
645 {
646 #ifndef CONFIG_NATIVE_WINDOWS
647 struct group *grp;
648 grp = getgrnam(group);
649 if (grp == NULL) {
650 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
651 return -1;
652 }
653 interfaces->ctrl_iface_group = grp->gr_gid;
654 #endif /* CONFIG_NATIVE_WINDOWS */
655 return 0;
656 }
657
658
hostapd_get_interface_names(char *** if_names,size_t * if_names_size,char * arg)659 static int hostapd_get_interface_names(char ***if_names,
660 size_t *if_names_size,
661 char *arg)
662 {
663 char *if_name, *tmp, **nnames;
664 size_t i;
665
666 if (!arg)
667 return -1;
668 if_name = strtok_r(arg, ",", &tmp);
669
670 while (if_name) {
671 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
672 sizeof(char *));
673 if (!nnames)
674 goto fail;
675 *if_names = nnames;
676
677 (*if_names)[*if_names_size] = os_strdup(if_name);
678 if (!(*if_names)[*if_names_size])
679 goto fail;
680 (*if_names_size)++;
681 if_name = strtok_r(NULL, ",", &tmp);
682 }
683
684 return 0;
685
686 fail:
687 for (i = 0; i < *if_names_size; i++)
688 os_free((*if_names)[i]);
689 os_free(*if_names);
690 *if_names = NULL;
691 *if_names_size = 0;
692 return -1;
693 }
694
695
696 #ifdef CONFIG_WPS
gen_uuid(const char * txt_addr)697 static int gen_uuid(const char *txt_addr)
698 {
699 u8 addr[ETH_ALEN];
700 u8 uuid[UUID_LEN];
701 char buf[100];
702
703 if (hwaddr_aton(txt_addr, addr) < 0)
704 return -1;
705
706 uuid_gen_mac_addr(addr, uuid);
707 if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
708 return -1;
709
710 printf("%s\n", buf);
711
712 return 0;
713 }
714 #endif /* CONFIG_WPS */
715
716
717 #ifndef HOSTAPD_CLEANUP_INTERVAL
718 #define HOSTAPD_CLEANUP_INTERVAL 10
719 #endif /* HOSTAPD_CLEANUP_INTERVAL */
720
hostapd_periodic_call(struct hostapd_iface * iface,void * ctx)721 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
722 {
723 hostapd_periodic_iface(iface);
724 return 0;
725 }
726
727
728 /* Periodic cleanup tasks */
hostapd_periodic(void * eloop_ctx,void * timeout_ctx)729 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
730 {
731 struct hapd_interfaces *interfaces = eloop_ctx;
732
733 eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
734 hostapd_periodic, interfaces, NULL);
735 hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
736 }
737
738
hostapd_global_cleanup_mld(struct hapd_interfaces * interfaces)739 static void hostapd_global_cleanup_mld(struct hapd_interfaces *interfaces)
740 {
741 #ifdef CONFIG_IEEE80211BE
742 size_t i;
743
744 if (!interfaces || !interfaces->mld)
745 return;
746
747 for (i = 0; i < interfaces->mld_count; i++) {
748 if (!interfaces->mld[i])
749 continue;
750
751 os_free(interfaces->mld[i]);
752 interfaces->mld[i] = NULL;
753 }
754
755 os_free(interfaces->mld);
756 interfaces->mld = NULL;
757 interfaces->mld_count = 0;
758 #endif /* CONFIG_IEEE80211BE */
759 }
760
761
main(int argc,char * argv[])762 int main(int argc, char *argv[])
763 {
764 struct hapd_interfaces interfaces;
765 int ret = 1;
766 size_t i, j;
767 int c, debug = 0, daemonize = 0;
768 char *pid_file = NULL;
769 const char *log_file = NULL;
770 const char *entropy_file = NULL;
771 char **bss_config = NULL, **tmp_bss;
772 size_t num_bss_configs = 0;
773 #ifdef CONFIG_DEBUG_LINUX_TRACING
774 int enable_trace_dbg = 0;
775 #endif /* CONFIG_DEBUG_LINUX_TRACING */
776 int start_ifaces_in_sync = 0;
777 char **if_names = NULL;
778 size_t if_names_size = 0;
779 #ifdef CONFIG_DPP
780 struct dpp_global_config dpp_conf;
781 #endif /* CONFIG_DPP */
782
783 if (os_program_init())
784 return -1;
785
786 os_memset(&interfaces, 0, sizeof(interfaces));
787 interfaces.reload_config = hostapd_reload_config;
788 interfaces.config_read_cb = hostapd_config_read;
789 interfaces.for_each_interface = hostapd_for_each_interface;
790 interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
791 interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
792 interfaces.driver_init = hostapd_driver_init;
793 interfaces.global_iface_path = NULL;
794 interfaces.global_iface_name = NULL;
795 interfaces.global_ctrl_sock = -1;
796 dl_list_init(&interfaces.global_ctrl_dst);
797 #ifdef CONFIG_ETH_P_OUI
798 dl_list_init(&interfaces.eth_p_oui);
799 #endif /* CONFIG_ETH_P_OUI */
800 #ifdef CONFIG_DPP
801 os_memset(&dpp_conf, 0, sizeof(dpp_conf));
802 dpp_conf.cb_ctx = &interfaces;
803 #ifdef CONFIG_DPP2
804 dpp_conf.remove_bi = hostapd_dpp_remove_bi;
805 #endif /* CONFIG_DPP2 */
806 interfaces.dpp = dpp_global_init(&dpp_conf);
807 if (!interfaces.dpp)
808 return -1;
809 #endif /* CONFIG_DPP */
810
811 for (;;) {
812 c = getopt(argc, argv, "b:Bde:f:hi:KP:sSTtu:vg:G:q");
813 if (c < 0)
814 break;
815 switch (c) {
816 case 'h':
817 usage();
818 break;
819 case 'd':
820 debug++;
821 if (wpa_debug_level > 0)
822 wpa_debug_level--;
823 break;
824 case 'B':
825 daemonize++;
826 break;
827 case 'e':
828 entropy_file = optarg;
829 break;
830 case 'f':
831 log_file = optarg;
832 break;
833 case 'K':
834 wpa_debug_show_keys++;
835 break;
836 case 'P':
837 os_free(pid_file);
838 pid_file = os_rel2abs_path(optarg);
839 break;
840 case 't':
841 wpa_debug_timestamp++;
842 break;
843 #ifdef CONFIG_DEBUG_LINUX_TRACING
844 case 'T':
845 enable_trace_dbg = 1;
846 break;
847 #endif /* CONFIG_DEBUG_LINUX_TRACING */
848 case 'v':
849 show_version();
850 exit(1);
851 case 'g':
852 if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
853 return -1;
854 break;
855 case 'G':
856 if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
857 return -1;
858 break;
859 case 'b':
860 tmp_bss = os_realloc_array(bss_config,
861 num_bss_configs + 1,
862 sizeof(char *));
863 if (tmp_bss == NULL)
864 goto out;
865 bss_config = tmp_bss;
866 bss_config[num_bss_configs++] = optarg;
867 break;
868 #ifdef CONFIG_DEBUG_SYSLOG
869 case 's':
870 wpa_debug_syslog = 1;
871 break;
872 #endif /* CONFIG_DEBUG_SYSLOG */
873 case 'S':
874 start_ifaces_in_sync = 1;
875 break;
876 #ifdef CONFIG_WPS
877 case 'u':
878 return gen_uuid(optarg);
879 #endif /* CONFIG_WPS */
880 case 'i':
881 if (hostapd_get_interface_names(&if_names,
882 &if_names_size, optarg))
883 goto out;
884 break;
885 case 'q':
886 wpa_debug_level++;
887 break;
888 default:
889 usage();
890 break;
891 }
892 }
893
894 if (optind == argc && interfaces.global_iface_path == NULL &&
895 num_bss_configs == 0)
896 usage();
897
898 wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
899
900 if (log_file)
901 wpa_debug_open_file(log_file);
902 if (!log_file && !wpa_debug_syslog)
903 wpa_debug_setup_stdout();
904 #ifdef CONFIG_DEBUG_SYSLOG
905 if (wpa_debug_syslog)
906 wpa_debug_open_syslog();
907 #endif /* CONFIG_DEBUG_SYSLOG */
908 #ifdef CONFIG_DEBUG_LINUX_TRACING
909 if (enable_trace_dbg) {
910 int tret = wpa_debug_open_linux_tracing();
911 if (tret) {
912 wpa_printf(MSG_ERROR, "Failed to enable trace logging");
913 return -1;
914 }
915 }
916 #endif /* CONFIG_DEBUG_LINUX_TRACING */
917
918 interfaces.count = argc - optind;
919 if (interfaces.count || num_bss_configs) {
920 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
921 sizeof(struct hostapd_iface *));
922 if (interfaces.iface == NULL) {
923 wpa_printf(MSG_ERROR, "malloc failed");
924 return -1;
925 }
926 }
927
928 if (hostapd_global_init(&interfaces, entropy_file)) {
929 wpa_printf(MSG_ERROR, "Failed to initialize global context");
930 return -1;
931 }
932
933 eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
934 hostapd_periodic, &interfaces, NULL);
935
936 if (fst_global_init()) {
937 wpa_printf(MSG_ERROR,
938 "Failed to initialize global FST context");
939 goto out;
940 }
941
942 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
943 if (!fst_global_add_ctrl(fst_ctrl_cli))
944 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
945 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
946
947 /* Allocate and parse configuration for full interface files */
948 for (i = 0; i < interfaces.count; i++) {
949 char *if_name = NULL;
950
951 if (i < if_names_size)
952 if_name = if_names[i];
953
954 interfaces.iface[i] = hostapd_interface_init(&interfaces,
955 if_name,
956 argv[optind + i],
957 debug);
958 if (!interfaces.iface[i]) {
959 wpa_printf(MSG_ERROR, "Failed to initialize interface");
960 goto out;
961 }
962 if (start_ifaces_in_sync)
963 interfaces.iface[i]->need_to_start_in_sync = 1;
964 }
965
966 /* Allocate and parse configuration for per-BSS files */
967 for (i = 0; i < num_bss_configs; i++) {
968 struct hostapd_iface *iface;
969 char *fname;
970
971 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
972 fname = os_strchr(bss_config[i], ':');
973 if (fname == NULL) {
974 wpa_printf(MSG_ERROR,
975 "Invalid BSS config identifier '%s'",
976 bss_config[i]);
977 goto out;
978 }
979 *fname++ = '\0';
980 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
981 fname, debug);
982 if (iface == NULL)
983 goto out;
984 for (j = 0; j < interfaces.count; j++) {
985 if (interfaces.iface[j] == iface)
986 break;
987 }
988 if (j == interfaces.count) {
989 struct hostapd_iface **tmp;
990 tmp = os_realloc_array(interfaces.iface,
991 interfaces.count + 1,
992 sizeof(struct hostapd_iface *));
993 if (tmp == NULL) {
994 hostapd_interface_deinit_free(iface);
995 goto out;
996 }
997 interfaces.iface = tmp;
998 interfaces.iface[interfaces.count++] = iface;
999 }
1000 }
1001
1002 /*
1003 * Enable configured interfaces. Depending on channel configuration,
1004 * this may complete full initialization before returning or use a
1005 * callback mechanism to complete setup in case of operations like HT
1006 * co-ex scans, ACS, or DFS are needed to determine channel parameters.
1007 * In such case, the interface will be enabled from eloop context within
1008 * hostapd_global_run().
1009 */
1010 interfaces.terminate_on_error = interfaces.count;
1011 for (i = 0; i < interfaces.count; i++) {
1012 if (hostapd_driver_init(interfaces.iface[i]) ||
1013 hostapd_setup_interface(interfaces.iface[i]))
1014 goto out;
1015 }
1016
1017 hostapd_global_ctrl_iface_init(&interfaces);
1018
1019 if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
1020 wpa_printf(MSG_ERROR, "Failed to start eloop");
1021 goto out;
1022 }
1023
1024 ret = 0;
1025
1026 out:
1027 hostapd_global_ctrl_iface_deinit(&interfaces);
1028 /* Deinitialize all interfaces */
1029 for (i = 0; i < interfaces.count; i++) {
1030 if (!interfaces.iface[i])
1031 continue;
1032 interfaces.iface[i]->driver_ap_teardown =
1033 !!(interfaces.iface[i]->drv_flags &
1034 WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
1035 hostapd_interface_deinit_free(interfaces.iface[i]);
1036 interfaces.iface[i] = NULL;
1037 }
1038 os_free(interfaces.iface);
1039 interfaces.iface = NULL;
1040 interfaces.count = 0;
1041
1042 hostapd_global_cleanup_mld(&interfaces);
1043
1044 #ifdef CONFIG_DPP
1045 dpp_global_deinit(interfaces.dpp);
1046 #endif /* CONFIG_DPP */
1047
1048 if (interfaces.eloop_initialized)
1049 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
1050 hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
1051 os_free(pid_file);
1052
1053 wpa_debug_close_syslog();
1054 if (log_file)
1055 wpa_debug_close_file();
1056 wpa_debug_close_linux_tracing();
1057
1058 os_free(bss_config);
1059
1060 for (i = 0; i < if_names_size; i++)
1061 os_free(if_names[i]);
1062 os_free(if_names);
1063
1064 fst_global_deinit();
1065
1066 crypto_unload();
1067 os_program_deinit();
1068
1069 return ret;
1070 }
1071