1/*
2 * hostapd / main()
3 * Copyright (c) 2002-2016, 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/random.h"
19#include "crypto/tls.h"
20#include "common/version.h"
21#include "drivers/driver.h"
22#include "eap_server/eap.h"
23#include "eap_server/tncs.h"
24#include "ap/hostapd.h"
25#include "ap/ap_config.h"
26#include "ap/ap_drv_ops.h"
27#include "fst/fst.h"
28#include "config_file.h"
29#include "eap_register.h"
30#include "ctrl_iface.h"
31
32
33struct hapd_global {
34	void **drv_priv;
35	size_t drv_count;
36};
37
38static struct hapd_global global;
39
40
41#ifndef CONFIG_NO_HOSTAPD_LOGGER
42static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
43			      int level, const char *txt, size_t len)
44{
45	struct hostapd_data *hapd = ctx;
46	char *format, *module_str;
47	int maxlen;
48	int conf_syslog_level, conf_stdout_level;
49	unsigned int conf_syslog, conf_stdout;
50
51	maxlen = len + 100;
52	format = os_malloc(maxlen);
53	if (!format)
54		return;
55
56	if (hapd && hapd->conf) {
57		conf_syslog_level = hapd->conf->logger_syslog_level;
58		conf_stdout_level = hapd->conf->logger_stdout_level;
59		conf_syslog = hapd->conf->logger_syslog;
60		conf_stdout = hapd->conf->logger_stdout;
61	} else {
62		conf_syslog_level = conf_stdout_level = 0;
63		conf_syslog = conf_stdout = (unsigned int) -1;
64	}
65
66	switch (module) {
67	case HOSTAPD_MODULE_IEEE80211:
68		module_str = "IEEE 802.11";
69		break;
70	case HOSTAPD_MODULE_IEEE8021X:
71		module_str = "IEEE 802.1X";
72		break;
73	case HOSTAPD_MODULE_RADIUS:
74		module_str = "RADIUS";
75		break;
76	case HOSTAPD_MODULE_WPA:
77		module_str = "WPA";
78		break;
79	case HOSTAPD_MODULE_DRIVER:
80		module_str = "DRIVER";
81		break;
82	case HOSTAPD_MODULE_IAPP:
83		module_str = "IAPP";
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	if ((conf_stdout & module) && level >= conf_stdout_level) {
112		wpa_debug_print_timestamp();
113		wpa_printf(MSG_INFO, "%s", format);
114	}
115
116#ifndef CONFIG_NATIVE_WINDOWS
117	if ((conf_syslog & module) && level >= conf_syslog_level) {
118		int priority;
119		switch (level) {
120		case HOSTAPD_LEVEL_DEBUG_VERBOSE:
121		case HOSTAPD_LEVEL_DEBUG:
122			priority = LOG_DEBUG;
123			break;
124		case HOSTAPD_LEVEL_INFO:
125			priority = LOG_INFO;
126			break;
127		case HOSTAPD_LEVEL_NOTICE:
128			priority = LOG_NOTICE;
129			break;
130		case HOSTAPD_LEVEL_WARNING:
131			priority = LOG_WARNING;
132			break;
133		default:
134			priority = LOG_INFO;
135			break;
136		}
137		syslog(priority, "%s", format);
138	}
139#endif /* CONFIG_NATIVE_WINDOWS */
140
141	os_free(format);
142}
143#endif /* CONFIG_NO_HOSTAPD_LOGGER */
144
145
146/**
147 * hostapd_driver_init - Preparate driver interface
148 */
149static int hostapd_driver_init(struct hostapd_iface *iface)
150{
151	struct wpa_init_params params;
152	size_t i;
153	struct hostapd_data *hapd = iface->bss[0];
154	struct hostapd_bss_config *conf = hapd->conf;
155	u8 *b = conf->bssid;
156	struct wpa_driver_capa capa;
157
158	if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
159		wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
160		return -1;
161	}
162
163	/* Initialize the driver interface */
164	if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
165		b = NULL;
166
167	os_memset(&params, 0, sizeof(params));
168	for (i = 0; wpa_drivers[i]; i++) {
169		if (wpa_drivers[i] != hapd->driver)
170			continue;
171
172		if (global.drv_priv[i] == NULL &&
173		    wpa_drivers[i]->global_init) {
174			global.drv_priv[i] =
175				wpa_drivers[i]->global_init(iface->interfaces);
176			if (global.drv_priv[i] == NULL) {
177				wpa_printf(MSG_ERROR, "Failed to initialize "
178					   "driver '%s'",
179					   wpa_drivers[i]->name);
180				return -1;
181			}
182		}
183
184		params.global_priv = global.drv_priv[i];
185		break;
186	}
187	params.bssid = b;
188	params.ifname = hapd->conf->iface;
189	params.driver_params = hapd->iconf->driver_params;
190	params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
191
192	params.num_bridge = hapd->iface->num_bss;
193	params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
194	if (params.bridge == NULL)
195		return -1;
196	for (i = 0; i < hapd->iface->num_bss; i++) {
197		struct hostapd_data *bss = hapd->iface->bss[i];
198		if (bss->conf->bridge[0])
199			params.bridge[i] = bss->conf->bridge;
200	}
201
202	params.own_addr = hapd->own_addr;
203
204	hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
205	os_free(params.bridge);
206	if (hapd->drv_priv == NULL) {
207		wpa_printf(MSG_ERROR, "%s driver initialization failed.",
208			   hapd->driver->name);
209		hapd->driver = NULL;
210		return -1;
211	}
212
213	if (hapd->driver->get_capa &&
214	    hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
215		struct wowlan_triggers *triggs;
216
217		iface->drv_flags = capa.flags;
218		iface->smps_modes = capa.smps_modes;
219		iface->probe_resp_offloads = capa.probe_resp_offloads;
220		iface->extended_capa = capa.extended_capa;
221		iface->extended_capa_mask = capa.extended_capa_mask;
222		iface->extended_capa_len = capa.extended_capa_len;
223		iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
224
225		triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
226		if (triggs && hapd->driver->set_wowlan) {
227			if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
228				wpa_printf(MSG_ERROR, "set_wowlan failed");
229		}
230		os_free(triggs);
231	}
232
233	return 0;
234}
235
236
237/**
238 * hostapd_interface_init - Read configuration file and init BSS data
239 *
240 * This function is used to parse configuration file for a full interface (one
241 * or more BSSes sharing the same radio) and allocate memory for the BSS
242 * interfaces. No actiual driver operations are started.
243 */
244static struct hostapd_iface *
245hostapd_interface_init(struct hapd_interfaces *interfaces,
246		       const char *config_fname, int debug)
247{
248	struct hostapd_iface *iface;
249	int k;
250
251	wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
252	iface = hostapd_init(interfaces, config_fname);
253	if (!iface)
254		return NULL;
255	iface->interfaces = interfaces;
256
257	for (k = 0; k < debug; k++) {
258		if (iface->bss[0]->conf->logger_stdout_level > 0)
259			iface->bss[0]->conf->logger_stdout_level--;
260	}
261
262	if (iface->conf->bss[0]->iface[0] == '\0' &&
263	    !hostapd_drv_none(iface->bss[0])) {
264		wpa_printf(MSG_ERROR, "Interface name not specified in %s",
265			   config_fname);
266		hostapd_interface_deinit_free(iface);
267		return NULL;
268	}
269
270	return iface;
271}
272
273
274/**
275 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
276 */
277static void handle_term(int sig, void *signal_ctx)
278{
279	wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
280	eloop_terminate();
281}
282
283
284#ifndef CONFIG_NATIVE_WINDOWS
285
286static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
287{
288	if (hostapd_reload_config(iface) < 0) {
289		wpa_printf(MSG_WARNING, "Failed to read new configuration "
290			   "file - continuing with old.");
291	}
292	return 0;
293}
294
295
296/**
297 * handle_reload - SIGHUP handler to reload configuration
298 */
299static void handle_reload(int sig, void *signal_ctx)
300{
301	struct hapd_interfaces *interfaces = signal_ctx;
302	wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
303		   sig);
304	hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
305}
306
307
308static void handle_dump_state(int sig, void *signal_ctx)
309{
310	/* Not used anymore - ignore signal */
311}
312#endif /* CONFIG_NATIVE_WINDOWS */
313
314
315static int hostapd_global_init(struct hapd_interfaces *interfaces,
316			       const char *entropy_file)
317{
318	int i;
319
320	os_memset(&global, 0, sizeof(global));
321
322	hostapd_logger_register_cb(hostapd_logger_cb);
323
324	if (eap_server_register_methods()) {
325		wpa_printf(MSG_ERROR, "Failed to register EAP methods");
326		return -1;
327	}
328
329	if (eloop_init()) {
330		wpa_printf(MSG_ERROR, "Failed to initialize event loop");
331		return -1;
332	}
333
334	random_init(entropy_file);
335
336#ifndef CONFIG_NATIVE_WINDOWS
337	eloop_register_signal(SIGHUP, handle_reload, interfaces);
338	eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
339#endif /* CONFIG_NATIVE_WINDOWS */
340	eloop_register_signal_terminate(handle_term, interfaces);
341
342#ifndef CONFIG_NATIVE_WINDOWS
343	openlog("hostapd", 0, LOG_DAEMON);
344#endif /* CONFIG_NATIVE_WINDOWS */
345
346	for (i = 0; wpa_drivers[i]; i++)
347		global.drv_count++;
348	if (global.drv_count == 0) {
349		wpa_printf(MSG_ERROR, "No drivers enabled");
350		return -1;
351	}
352	global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
353	if (global.drv_priv == NULL)
354		return -1;
355
356	return 0;
357}
358
359
360static void hostapd_global_deinit(const char *pid_file)
361{
362	int i;
363
364	for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
365		if (!global.drv_priv[i])
366			continue;
367		wpa_drivers[i]->global_deinit(global.drv_priv[i]);
368	}
369	os_free(global.drv_priv);
370	global.drv_priv = NULL;
371
372#ifdef EAP_SERVER_TNC
373	tncs_global_deinit();
374#endif /* EAP_SERVER_TNC */
375
376	random_deinit();
377
378	eloop_destroy();
379
380#ifndef CONFIG_NATIVE_WINDOWS
381	closelog();
382#endif /* CONFIG_NATIVE_WINDOWS */
383
384	eap_server_unregister_methods();
385
386	os_daemonize_terminate(pid_file);
387}
388
389
390static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
391			      const char *pid_file)
392{
393#ifdef EAP_SERVER_TNC
394	int tnc = 0;
395	size_t i, k;
396
397	for (i = 0; !tnc && i < ifaces->count; i++) {
398		for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
399			if (ifaces->iface[i]->bss[0]->conf->tnc) {
400				tnc++;
401				break;
402			}
403		}
404	}
405
406	if (tnc && tncs_global_init() < 0) {
407		wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
408		return -1;
409	}
410#endif /* EAP_SERVER_TNC */
411
412	if (daemonize) {
413		if (os_daemonize(pid_file)) {
414			wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
415			return -1;
416		}
417		if (eloop_sock_requeue()) {
418			wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
419				   strerror(errno));
420			return -1;
421		}
422	}
423
424	eloop_run();
425
426	return 0;
427}
428
429
430static void show_version(void)
431{
432	fprintf(stderr,
433		"hostapd v" VERSION_STR "\n"
434		"User space daemon for IEEE 802.11 AP management,\n"
435		"IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
436		"Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
437		"and contributors\n");
438}
439
440
441static void usage(void)
442{
443	show_version();
444	fprintf(stderr,
445		"\n"
446		"usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
447		"\\\n"
448		"         [-g <global ctrl_iface>] [-G <group>] \\\n"
449		"         <configuration file(s)>\n"
450		"\n"
451		"options:\n"
452		"   -h   show this usage\n"
453		"   -d   show more debug messages (-dd for even more)\n"
454		"   -B   run daemon in the background\n"
455		"   -e   entropy file\n"
456		"   -g   global control interface path\n"
457		"   -G   group for control interfaces\n"
458		"   -P   PID file\n"
459		"   -K   include key data in debug messages\n"
460#ifdef CONFIG_DEBUG_FILE
461		"   -f   log output to debug file instead of stdout\n"
462#endif /* CONFIG_DEBUG_FILE */
463#ifdef CONFIG_DEBUG_LINUX_TRACING
464		"   -T = record to Linux tracing in addition to logging\n"
465		"        (records all messages regardless of debug verbosity)\n"
466#endif /* CONFIG_DEBUG_LINUX_TRACING */
467		"   -S   start all the interfaces synchronously\n"
468		"   -t   include timestamps in some debug messages\n"
469		"   -v   show hostapd version\n");
470
471	exit(1);
472}
473
474
475static const char * hostapd_msg_ifname_cb(void *ctx)
476{
477	struct hostapd_data *hapd = ctx;
478	if (hapd && hapd->conf)
479		return hapd->conf->iface;
480	return NULL;
481}
482
483
484static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
485					 const char *path)
486{
487#ifndef CONFIG_CTRL_IFACE_UDP
488	char *pos;
489#endif /* !CONFIG_CTRL_IFACE_UDP */
490
491	os_free(interfaces->global_iface_path);
492	interfaces->global_iface_path = os_strdup(path);
493	if (interfaces->global_iface_path == NULL)
494		return -1;
495
496#ifndef CONFIG_CTRL_IFACE_UDP
497	pos = os_strrchr(interfaces->global_iface_path, '/');
498	if (pos == NULL) {
499		wpa_printf(MSG_ERROR, "No '/' in the global control interface "
500			   "file");
501		os_free(interfaces->global_iface_path);
502		interfaces->global_iface_path = NULL;
503		return -1;
504	}
505
506	*pos = '\0';
507	interfaces->global_iface_name = pos + 1;
508#endif /* !CONFIG_CTRL_IFACE_UDP */
509
510	return 0;
511}
512
513
514static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
515					const char *group)
516{
517#ifndef CONFIG_NATIVE_WINDOWS
518	struct group *grp;
519	grp = getgrnam(group);
520	if (grp == NULL) {
521		wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
522		return -1;
523	}
524	interfaces->ctrl_iface_group = grp->gr_gid;
525#endif /* CONFIG_NATIVE_WINDOWS */
526	return 0;
527}
528
529
530#ifdef CONFIG_WPS
531static int gen_uuid(const char *txt_addr)
532{
533	u8 addr[ETH_ALEN];
534	u8 uuid[UUID_LEN];
535	char buf[100];
536
537	if (hwaddr_aton(txt_addr, addr) < 0)
538		return -1;
539
540	uuid_gen_mac_addr(addr, uuid);
541	if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
542		return -1;
543
544	printf("%s\n", buf);
545
546	return 0;
547}
548#endif /* CONFIG_WPS */
549
550
551#ifndef HOSTAPD_CLEANUP_INTERVAL
552#define HOSTAPD_CLEANUP_INTERVAL 10
553#endif /* HOSTAPD_CLEANUP_INTERVAL */
554
555static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
556{
557	hostapd_periodic_iface(iface);
558	return 0;
559}
560
561
562/* Periodic cleanup tasks */
563static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
564{
565	struct hapd_interfaces *interfaces = eloop_ctx;
566
567	eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
568			       hostapd_periodic, interfaces, NULL);
569	hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
570}
571
572
573int main(int argc, char *argv[])
574{
575	struct hapd_interfaces interfaces;
576	int ret = 1;
577	size_t i, j;
578	int c, debug = 0, daemonize = 0;
579	char *pid_file = NULL;
580	const char *log_file = NULL;
581	const char *entropy_file = NULL;
582	char **bss_config = NULL, **tmp_bss;
583	size_t num_bss_configs = 0;
584#ifdef CONFIG_DEBUG_LINUX_TRACING
585	int enable_trace_dbg = 0;
586#endif /* CONFIG_DEBUG_LINUX_TRACING */
587	int start_ifaces_in_sync = 0;
588
589	if (os_program_init())
590		return -1;
591
592	os_memset(&interfaces, 0, sizeof(interfaces));
593	interfaces.reload_config = hostapd_reload_config;
594	interfaces.config_read_cb = hostapd_config_read;
595	interfaces.for_each_interface = hostapd_for_each_interface;
596	interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
597	interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
598	interfaces.driver_init = hostapd_driver_init;
599	interfaces.global_iface_path = NULL;
600	interfaces.global_iface_name = NULL;
601	interfaces.global_ctrl_sock = -1;
602	dl_list_init(&interfaces.global_ctrl_dst);
603
604	for (;;) {
605		c = getopt(argc, argv, "b:Bde:f:hKP:STtu:vg:G:");
606		if (c < 0)
607			break;
608		switch (c) {
609		case 'h':
610			usage();
611			break;
612		case 'd':
613			debug++;
614			if (wpa_debug_level > 0)
615				wpa_debug_level--;
616			break;
617		case 'B':
618			daemonize++;
619			break;
620		case 'e':
621			entropy_file = optarg;
622			break;
623		case 'f':
624			log_file = optarg;
625			break;
626		case 'K':
627			wpa_debug_show_keys++;
628			break;
629		case 'P':
630			os_free(pid_file);
631			pid_file = os_rel2abs_path(optarg);
632			break;
633		case 't':
634			wpa_debug_timestamp++;
635			break;
636#ifdef CONFIG_DEBUG_LINUX_TRACING
637		case 'T':
638			enable_trace_dbg = 1;
639			break;
640#endif /* CONFIG_DEBUG_LINUX_TRACING */
641		case 'v':
642			show_version();
643			exit(1);
644			break;
645		case 'g':
646			if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
647				return -1;
648			break;
649		case 'G':
650			if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
651				return -1;
652			break;
653		case 'b':
654			tmp_bss = os_realloc_array(bss_config,
655						   num_bss_configs + 1,
656						   sizeof(char *));
657			if (tmp_bss == NULL)
658				goto out;
659			bss_config = tmp_bss;
660			bss_config[num_bss_configs++] = optarg;
661			break;
662		case 'S':
663			start_ifaces_in_sync = 1;
664			break;
665#ifdef CONFIG_WPS
666		case 'u':
667			return gen_uuid(optarg);
668#endif /* CONFIG_WPS */
669		default:
670			usage();
671			break;
672		}
673	}
674
675	if (optind == argc && interfaces.global_iface_path == NULL &&
676	    num_bss_configs == 0)
677		usage();
678
679	wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
680
681	if (log_file)
682		wpa_debug_open_file(log_file);
683	else
684		wpa_debug_setup_stdout();
685#ifdef CONFIG_DEBUG_LINUX_TRACING
686	if (enable_trace_dbg) {
687		int tret = wpa_debug_open_linux_tracing();
688		if (tret) {
689			wpa_printf(MSG_ERROR, "Failed to enable trace logging");
690			return -1;
691		}
692	}
693#endif /* CONFIG_DEBUG_LINUX_TRACING */
694
695	interfaces.count = argc - optind;
696	if (interfaces.count || num_bss_configs) {
697		interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
698					     sizeof(struct hostapd_iface *));
699		if (interfaces.iface == NULL) {
700			wpa_printf(MSG_ERROR, "malloc failed");
701			return -1;
702		}
703	}
704
705	if (hostapd_global_init(&interfaces, entropy_file)) {
706		wpa_printf(MSG_ERROR, "Failed to initialize global context");
707		return -1;
708	}
709
710	eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
711			       hostapd_periodic, &interfaces, NULL);
712
713	if (fst_global_init()) {
714		wpa_printf(MSG_ERROR,
715			   "Failed to initialize global FST context");
716		goto out;
717	}
718
719#if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
720	if (!fst_global_add_ctrl(fst_ctrl_cli))
721		wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
722#endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
723
724	/* Allocate and parse configuration for full interface files */
725	for (i = 0; i < interfaces.count; i++) {
726		interfaces.iface[i] = hostapd_interface_init(&interfaces,
727							     argv[optind + i],
728							     debug);
729		if (!interfaces.iface[i]) {
730			wpa_printf(MSG_ERROR, "Failed to initialize interface");
731			goto out;
732		}
733		if (start_ifaces_in_sync)
734			interfaces.iface[i]->need_to_start_in_sync = 1;
735	}
736
737	/* Allocate and parse configuration for per-BSS files */
738	for (i = 0; i < num_bss_configs; i++) {
739		struct hostapd_iface *iface;
740		char *fname;
741
742		wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
743		fname = os_strchr(bss_config[i], ':');
744		if (fname == NULL) {
745			wpa_printf(MSG_ERROR,
746				   "Invalid BSS config identifier '%s'",
747				   bss_config[i]);
748			goto out;
749		}
750		*fname++ = '\0';
751		iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
752						   fname, debug);
753		if (iface == NULL)
754			goto out;
755		for (j = 0; j < interfaces.count; j++) {
756			if (interfaces.iface[j] == iface)
757				break;
758		}
759		if (j == interfaces.count) {
760			struct hostapd_iface **tmp;
761			tmp = os_realloc_array(interfaces.iface,
762					       interfaces.count + 1,
763					       sizeof(struct hostapd_iface *));
764			if (tmp == NULL) {
765				hostapd_interface_deinit_free(iface);
766				goto out;
767			}
768			interfaces.iface = tmp;
769			interfaces.iface[interfaces.count++] = iface;
770		}
771	}
772
773	/*
774	 * Enable configured interfaces. Depending on channel configuration,
775	 * this may complete full initialization before returning or use a
776	 * callback mechanism to complete setup in case of operations like HT
777	 * co-ex scans, ACS, or DFS are needed to determine channel parameters.
778	 * In such case, the interface will be enabled from eloop context within
779	 * hostapd_global_run().
780	 */
781	interfaces.terminate_on_error = interfaces.count;
782	for (i = 0; i < interfaces.count; i++) {
783		if (hostapd_driver_init(interfaces.iface[i]) ||
784		    hostapd_setup_interface(interfaces.iface[i]))
785			goto out;
786	}
787
788	hostapd_global_ctrl_iface_init(&interfaces);
789
790	if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
791		wpa_printf(MSG_ERROR, "Failed to start eloop");
792		goto out;
793	}
794
795	ret = 0;
796
797 out:
798	hostapd_global_ctrl_iface_deinit(&interfaces);
799	/* Deinitialize all interfaces */
800	for (i = 0; i < interfaces.count; i++) {
801		if (!interfaces.iface[i])
802			continue;
803		interfaces.iface[i]->driver_ap_teardown =
804			!!(interfaces.iface[i]->drv_flags &
805			   WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
806		hostapd_interface_deinit_free(interfaces.iface[i]);
807	}
808	os_free(interfaces.iface);
809
810	eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
811	hostapd_global_deinit(pid_file);
812	os_free(pid_file);
813
814	if (log_file)
815		wpa_debug_close_file();
816	wpa_debug_close_linux_tracing();
817
818	os_free(bss_config);
819
820	fst_global_deinit();
821
822	os_program_deinit();
823
824	return ret;
825}
826