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