main.c revision b97e428f8acf1ecb93f38f8d0063d2f2fd0bc36e 
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] = wpa_drivers[i]->global_init();
175			if (global.drv_priv[i] == NULL) {
176				wpa_printf(MSG_ERROR, "Failed to initialize "
177					   "driver '%s'",
178					   wpa_drivers[i]->name);
179				return -1;
180			}
181		}
182
183		params.global_priv = global.drv_priv[i];
184		break;
185	}
186	params.bssid = b;
187	params.ifname = hapd->conf->iface;
188	params.driver_params = hapd->iconf->driver_params;
189	params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
190
191	params.num_bridge = hapd->iface->num_bss;
192	params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
193	if (params.bridge == NULL)
194		return -1;
195	for (i = 0; i < hapd->iface->num_bss; i++) {
196		struct hostapd_data *bss = hapd->iface->bss[i];
197		if (bss->conf->bridge[0])
198			params.bridge[i] = bss->conf->bridge;
199	}
200
201	params.own_addr = hapd->own_addr;
202
203	hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
204	os_free(params.bridge);
205	if (hapd->drv_priv == NULL) {
206		wpa_printf(MSG_ERROR, "%s driver initialization failed.",
207			   hapd->driver->name);
208		hapd->driver = NULL;
209		return -1;
210	}
211
212	if (hapd->driver->get_capa &&
213	    hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
214		struct wowlan_triggers *triggs;
215
216		iface->drv_flags = capa.flags;
217		iface->smps_modes = capa.smps_modes;
218		iface->probe_resp_offloads = capa.probe_resp_offloads;
219		iface->extended_capa = capa.extended_capa;
220		iface->extended_capa_mask = capa.extended_capa_mask;
221		iface->extended_capa_len = capa.extended_capa_len;
222		iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
223
224		triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
225		if (triggs && hapd->driver->set_wowlan) {
226			if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
227				wpa_printf(MSG_ERROR, "set_wowlan failed");
228		}
229		os_free(triggs);
230	}
231
232	return 0;
233}
234
235
236/**
237 * hostapd_interface_init - Read configuration file and init BSS data
238 *
239 * This function is used to parse configuration file for a full interface (one
240 * or more BSSes sharing the same radio) and allocate memory for the BSS
241 * interfaces. No actiual driver operations are started.
242 */
243static struct hostapd_iface *
244hostapd_interface_init(struct hapd_interfaces *interfaces,
245		       const char *config_fname, int debug)
246{
247	struct hostapd_iface *iface;
248	int k;
249
250	wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
251	iface = hostapd_init(interfaces, config_fname);
252	if (!iface)
253		return NULL;
254	iface->interfaces = interfaces;
255
256	for (k = 0; k < debug; k++) {
257		if (iface->bss[0]->conf->logger_stdout_level > 0)
258			iface->bss[0]->conf->logger_stdout_level--;
259	}
260
261	if (iface->conf->bss[0]->iface[0] == '\0' &&
262	    !hostapd_drv_none(iface->bss[0])) {
263		wpa_printf(MSG_ERROR, "Interface name not specified in %s",
264			   config_fname);
265		hostapd_interface_deinit_free(iface);
266		return NULL;
267	}
268
269	return iface;
270}
271
272
273/**
274 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
275 */
276static void handle_term(int sig, void *signal_ctx)
277{
278	wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
279	eloop_terminate();
280}
281
282
283#ifndef CONFIG_NATIVE_WINDOWS
284
285static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
286{
287	if (hostapd_reload_config(iface) < 0) {
288		wpa_printf(MSG_WARNING, "Failed to read new configuration "
289			   "file - continuing with old.");
290	}
291	return 0;
292}
293
294
295/**
296 * handle_reload - SIGHUP handler to reload configuration
297 */
298static void handle_reload(int sig, void *signal_ctx)
299{
300	struct hapd_interfaces *interfaces = signal_ctx;
301	wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
302		   sig);
303	hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
304}
305
306
307static void handle_dump_state(int sig, void *signal_ctx)
308{
309	/* Not used anymore - ignore signal */
310}
311#endif /* CONFIG_NATIVE_WINDOWS */
312
313
314static int hostapd_global_init(struct hapd_interfaces *interfaces,
315			       const char *entropy_file)
316{
317	int i;
318
319	os_memset(&global, 0, sizeof(global));
320
321	hostapd_logger_register_cb(hostapd_logger_cb);
322
323	if (eap_server_register_methods()) {
324		wpa_printf(MSG_ERROR, "Failed to register EAP methods");
325		return -1;
326	}
327
328	if (eloop_init()) {
329		wpa_printf(MSG_ERROR, "Failed to initialize event loop");
330		return -1;
331	}
332
333	random_init(entropy_file);
334
335#ifndef CONFIG_NATIVE_WINDOWS
336	eloop_register_signal(SIGHUP, handle_reload, interfaces);
337	eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
338#endif /* CONFIG_NATIVE_WINDOWS */
339	eloop_register_signal_terminate(handle_term, interfaces);
340
341#ifndef CONFIG_NATIVE_WINDOWS
342	openlog("hostapd", 0, LOG_DAEMON);
343#endif /* CONFIG_NATIVE_WINDOWS */
344
345	for (i = 0; wpa_drivers[i]; i++)
346		global.drv_count++;
347	if (global.drv_count == 0) {
348		wpa_printf(MSG_ERROR, "No drivers enabled");
349		return -1;
350	}
351	global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
352	if (global.drv_priv == NULL)
353		return -1;
354
355	return 0;
356}
357
358
359static void hostapd_global_deinit(const char *pid_file)
360{
361	int i;
362
363	for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
364		if (!global.drv_priv[i])
365			continue;
366		wpa_drivers[i]->global_deinit(global.drv_priv[i]);
367	}
368	os_free(global.drv_priv);
369	global.drv_priv = NULL;
370
371#ifdef EAP_SERVER_TNC
372	tncs_global_deinit();
373#endif /* EAP_SERVER_TNC */
374
375	random_deinit();
376
377	eloop_destroy();
378
379#ifndef CONFIG_NATIVE_WINDOWS
380	closelog();
381#endif /* CONFIG_NATIVE_WINDOWS */
382
383	eap_server_unregister_methods();
384
385	os_daemonize_terminate(pid_file);
386}
387
388
389static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
390			      const char *pid_file)
391{
392#ifdef EAP_SERVER_TNC
393	int tnc = 0;
394	size_t i, k;
395
396	for (i = 0; !tnc && i < ifaces->count; i++) {
397		for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
398			if (ifaces->iface[i]->bss[0]->conf->tnc) {
399				tnc++;
400				break;
401			}
402		}
403	}
404
405	if (tnc && tncs_global_init() < 0) {
406		wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
407		return -1;
408	}
409#endif /* EAP_SERVER_TNC */
410
411	if (daemonize) {
412		if (os_daemonize(pid_file)) {
413			wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
414			return -1;
415		}
416		if (eloop_sock_requeue()) {
417			wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
418				   strerror(errno));
419			return -1;
420		}
421	}
422
423	eloop_run();
424
425	return 0;
426}
427
428
429static void show_version(void)
430{
431	fprintf(stderr,
432		"hostapd v" VERSION_STR "\n"
433		"User space daemon for IEEE 802.11 AP management,\n"
434		"IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
435		"Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
436		"and contributors\n");
437}
438
439
440static void usage(void)
441{
442	show_version();
443	fprintf(stderr,
444		"\n"
445		"usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
446		"\\\n"
447		"         [-g <global ctrl_iface>] [-G <group>] \\\n"
448		"         <configuration file(s)>\n"
449		"\n"
450		"options:\n"
451		"   -h   show this usage\n"
452		"   -d   show more debug messages (-dd for even more)\n"
453		"   -B   run daemon in the background\n"
454		"   -e   entropy file\n"
455		"   -g   global control interface path\n"
456		"   -G   group for control interfaces\n"
457		"   -P   PID file\n"
458		"   -K   include key data in debug messages\n"
459#ifdef CONFIG_DEBUG_FILE
460		"   -f   log output to debug file instead of stdout\n"
461#endif /* CONFIG_DEBUG_FILE */
462#ifdef CONFIG_DEBUG_LINUX_TRACING
463		"   -T = record to Linux tracing in addition to logging\n"
464		"        (records all messages regardless of debug verbosity)\n"
465#endif /* CONFIG_DEBUG_LINUX_TRACING */
466		"   -S   start all the interfaces synchronously\n"
467		"   -t   include timestamps in some debug messages\n"
468		"   -v   show hostapd version\n");
469
470	exit(1);
471}
472
473
474static const char * hostapd_msg_ifname_cb(void *ctx)
475{
476	struct hostapd_data *hapd = ctx;
477	if (hapd && hapd->iconf && hapd->iconf->bss &&
478	    hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
479		return hapd->iconf->bss[0]->iface;
480	return NULL;
481}
482
483
484static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
485					 const char *path)
486{
487	char *pos;
488	os_free(interfaces->global_iface_path);
489	interfaces->global_iface_path = os_strdup(path);
490	if (interfaces->global_iface_path == NULL)
491		return -1;
492	pos = os_strrchr(interfaces->global_iface_path, '/');
493	if (pos == NULL) {
494		wpa_printf(MSG_ERROR, "No '/' in the global control interface "
495			   "file");
496		os_free(interfaces->global_iface_path);
497		interfaces->global_iface_path = NULL;
498		return -1;
499	}
500
501	*pos = '\0';
502	interfaces->global_iface_name = pos + 1;
503
504	return 0;
505}
506
507
508static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
509					const char *group)
510{
511#ifndef CONFIG_NATIVE_WINDOWS
512	struct group *grp;
513	grp = getgrnam(group);
514	if (grp == NULL) {
515		wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
516		return -1;
517	}
518	interfaces->ctrl_iface_group = grp->gr_gid;
519#endif /* CONFIG_NATIVE_WINDOWS */
520	return 0;
521}
522
523
524#ifdef CONFIG_WPS
525static int gen_uuid(const char *txt_addr)
526{
527	u8 addr[ETH_ALEN];
528	u8 uuid[UUID_LEN];
529	char buf[100];
530
531	if (hwaddr_aton(txt_addr, addr) < 0)
532		return -1;
533
534	uuid_gen_mac_addr(addr, uuid);
535	if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
536		return -1;
537
538	printf("%s\n", buf);
539
540	return 0;
541}
542#endif /* CONFIG_WPS */
543
544
545#ifndef HOSTAPD_CLEANUP_INTERVAL
546#define HOSTAPD_CLEANUP_INTERVAL 10
547#endif /* HOSTAPD_CLEANUP_INTERVAL */
548
549static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
550{
551	hostapd_periodic_iface(iface);
552	return 0;
553}
554
555
556/* Periodic cleanup tasks */
557static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
558{
559	struct hapd_interfaces *interfaces = eloop_ctx;
560
561	eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
562			       hostapd_periodic, interfaces, NULL);
563	hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
564}
565
566
567int main(int argc, char *argv[])
568{
569	struct hapd_interfaces interfaces;
570	int ret = 1;
571	size_t i, j;
572	int c, debug = 0, daemonize = 0;
573	char *pid_file = NULL;
574	const char *log_file = NULL;
575	const char *entropy_file = NULL;
576	char **bss_config = NULL, **tmp_bss;
577	size_t num_bss_configs = 0;
578#ifdef CONFIG_DEBUG_LINUX_TRACING
579	int enable_trace_dbg = 0;
580#endif /* CONFIG_DEBUG_LINUX_TRACING */
581	int start_ifaces_in_sync = 0;
582
583	if (os_program_init())
584		return -1;
585
586	os_memset(&interfaces, 0, sizeof(interfaces));
587	interfaces.reload_config = hostapd_reload_config;
588	interfaces.config_read_cb = hostapd_config_read;
589	interfaces.for_each_interface = hostapd_for_each_interface;
590	interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
591	interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
592	interfaces.driver_init = hostapd_driver_init;
593	interfaces.global_iface_path = NULL;
594	interfaces.global_iface_name = NULL;
595	interfaces.global_ctrl_sock = -1;
596	interfaces.global_ctrl_dst = NULL;
597
598	for (;;) {
599		c = getopt(argc, argv, "b:Bde:f:hKP:STtu:vg:G:");
600		if (c < 0)
601			break;
602		switch (c) {
603		case 'h':
604			usage();
605			break;
606		case 'd':
607			debug++;
608			if (wpa_debug_level > 0)
609				wpa_debug_level--;
610			break;
611		case 'B':
612			daemonize++;
613			break;
614		case 'e':
615			entropy_file = optarg;
616			break;
617		case 'f':
618			log_file = optarg;
619			break;
620		case 'K':
621			wpa_debug_show_keys++;
622			break;
623		case 'P':
624			os_free(pid_file);
625			pid_file = os_rel2abs_path(optarg);
626			break;
627		case 't':
628			wpa_debug_timestamp++;
629			break;
630#ifdef CONFIG_DEBUG_LINUX_TRACING
631		case 'T':
632			enable_trace_dbg = 1;
633			break;
634#endif /* CONFIG_DEBUG_LINUX_TRACING */
635		case 'v':
636			show_version();
637			exit(1);
638			break;
639		case 'g':
640			if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
641				return -1;
642			break;
643		case 'G':
644			if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
645				return -1;
646			break;
647		case 'b':
648			tmp_bss = os_realloc_array(bss_config,
649						   num_bss_configs + 1,
650						   sizeof(char *));
651			if (tmp_bss == NULL)
652				goto out;
653			bss_config = tmp_bss;
654			bss_config[num_bss_configs++] = optarg;
655			break;
656		case 'S':
657			start_ifaces_in_sync = 1;
658			break;
659#ifdef CONFIG_WPS
660		case 'u':
661			return gen_uuid(optarg);
662#endif /* CONFIG_WPS */
663		default:
664			usage();
665			break;
666		}
667	}
668
669	if (optind == argc && interfaces.global_iface_path == NULL &&
670	    num_bss_configs == 0)
671		usage();
672
673	wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
674
675	if (log_file)
676		wpa_debug_open_file(log_file);
677	else
678		wpa_debug_setup_stdout();
679#ifdef CONFIG_DEBUG_LINUX_TRACING
680	if (enable_trace_dbg) {
681		int tret = wpa_debug_open_linux_tracing();
682		if (tret) {
683			wpa_printf(MSG_ERROR, "Failed to enable trace logging");
684			return -1;
685		}
686	}
687#endif /* CONFIG_DEBUG_LINUX_TRACING */
688
689	interfaces.count = argc - optind;
690	if (interfaces.count || num_bss_configs) {
691		interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
692					     sizeof(struct hostapd_iface *));
693		if (interfaces.iface == NULL) {
694			wpa_printf(MSG_ERROR, "malloc failed");
695			return -1;
696		}
697	}
698
699	if (hostapd_global_init(&interfaces, entropy_file)) {
700		wpa_printf(MSG_ERROR, "Failed to initialize global context");
701		return -1;
702	}
703
704	eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
705			       hostapd_periodic, &interfaces, NULL);
706
707	if (fst_global_init()) {
708		wpa_printf(MSG_ERROR,
709			   "Failed to initialize global FST context");
710		goto out;
711	}
712
713#if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
714	if (!fst_global_add_ctrl(fst_ctrl_cli))
715		wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
716#endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
717
718	/* Allocate and parse configuration for full interface files */
719	for (i = 0; i < interfaces.count; i++) {
720		interfaces.iface[i] = hostapd_interface_init(&interfaces,
721							     argv[optind + i],
722							     debug);
723		if (!interfaces.iface[i]) {
724			wpa_printf(MSG_ERROR, "Failed to initialize interface");
725			goto out;
726		}
727		if (start_ifaces_in_sync)
728			interfaces.iface[i]->need_to_start_in_sync = 1;
729	}
730
731	/* Allocate and parse configuration for per-BSS files */
732	for (i = 0; i < num_bss_configs; i++) {
733		struct hostapd_iface *iface;
734		char *fname;
735
736		wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
737		fname = os_strchr(bss_config[i], ':');
738		if (fname == NULL) {
739			wpa_printf(MSG_ERROR,
740				   "Invalid BSS config identifier '%s'",
741				   bss_config[i]);
742			goto out;
743		}
744		*fname++ = '\0';
745		iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
746						   fname, debug);
747		if (iface == NULL)
748			goto out;
749		for (j = 0; j < interfaces.count; j++) {
750			if (interfaces.iface[j] == iface)
751				break;
752		}
753		if (j == interfaces.count) {
754			struct hostapd_iface **tmp;
755			tmp = os_realloc_array(interfaces.iface,
756					       interfaces.count + 1,
757					       sizeof(struct hostapd_iface *));
758			if (tmp == NULL) {
759				hostapd_interface_deinit_free(iface);
760				goto out;
761			}
762			interfaces.iface = tmp;
763			interfaces.iface[interfaces.count++] = iface;
764		}
765	}
766
767	/*
768	 * Enable configured interfaces. Depending on channel configuration,
769	 * this may complete full initialization before returning or use a
770	 * callback mechanism to complete setup in case of operations like HT
771	 * co-ex scans, ACS, or DFS are needed to determine channel parameters.
772	 * In such case, the interface will be enabled from eloop context within
773	 * hostapd_global_run().
774	 */
775	interfaces.terminate_on_error = interfaces.count;
776	for (i = 0; i < interfaces.count; i++) {
777		if (hostapd_driver_init(interfaces.iface[i]) ||
778		    hostapd_setup_interface(interfaces.iface[i]))
779			goto out;
780	}
781
782	hostapd_global_ctrl_iface_init(&interfaces);
783
784	if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
785		wpa_printf(MSG_ERROR, "Failed to start eloop");
786		goto out;
787	}
788
789	ret = 0;
790
791 out:
792	hostapd_global_ctrl_iface_deinit(&interfaces);
793	/* Deinitialize all interfaces */
794	for (i = 0; i < interfaces.count; i++) {
795		if (!interfaces.iface[i])
796			continue;
797		interfaces.iface[i]->driver_ap_teardown =
798			!!(interfaces.iface[i]->drv_flags &
799			   WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
800		hostapd_interface_deinit_free(interfaces.iface[i]);
801	}
802	os_free(interfaces.iface);
803
804	eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
805	hostapd_global_deinit(pid_file);
806	os_free(pid_file);
807
808	if (log_file)
809		wpa_debug_close_file();
810	wpa_debug_close_linux_tracing();
811
812	os_free(bss_config);
813
814	fst_global_deinit();
815
816	os_program_deinit();
817
818	return ret;
819}
820