3 * Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
9 #include "utils/includes.h"
10 #ifndef CONFIG_NATIVE_WINDOWS
13 #endif /* CONFIG_NATIVE_WINDOWS */
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"
28 #include "config_file.h"
29 #include "eap_register.h"
30 #include "ctrl_iface.h"
38 static struct hapd_global global;
41 #ifndef CONFIG_NO_HOSTAPD_LOGGER
42 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
43 int level, const char *txt, size_t len)
45 struct hostapd_data *hapd = ctx;
46 char *format, *module_str;
48 int conf_syslog_level, conf_stdout_level;
49 unsigned int conf_syslog, conf_stdout;
52 format = os_malloc(maxlen);
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;
62 conf_syslog_level = conf_stdout_level = 0;
63 conf_syslog = conf_stdout = (unsigned int) -1;
67 case HOSTAPD_MODULE_IEEE80211:
68 module_str = "IEEE 802.11";
70 case HOSTAPD_MODULE_IEEE8021X:
71 module_str = "IEEE 802.1X";
73 case HOSTAPD_MODULE_RADIUS:
74 module_str = "RADIUS";
76 case HOSTAPD_MODULE_WPA:
79 case HOSTAPD_MODULE_DRIVER:
80 module_str = "DRIVER";
82 case HOSTAPD_MODULE_IAPP:
85 case HOSTAPD_MODULE_MLME:
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 : "",
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);
103 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
104 MAC2STR(addr), module_str ? " " : "",
105 module_str ? module_str : "", txt);
107 os_snprintf(format, maxlen, "%s%s%s",
108 module_str ? module_str : "",
109 module_str ? ": " : "", txt);
111 if ((conf_stdout & module) && level >= conf_stdout_level) {
112 wpa_debug_print_timestamp();
113 wpa_printf(MSG_INFO, "%s", format);
116 #ifndef CONFIG_NATIVE_WINDOWS
117 if ((conf_syslog & module) && level >= conf_syslog_level) {
120 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
121 case HOSTAPD_LEVEL_DEBUG:
122 priority = LOG_DEBUG;
124 case HOSTAPD_LEVEL_INFO:
127 case HOSTAPD_LEVEL_NOTICE:
128 priority = LOG_NOTICE;
130 case HOSTAPD_LEVEL_WARNING:
131 priority = LOG_WARNING;
137 syslog(priority, "%s", format);
139 #endif /* CONFIG_NATIVE_WINDOWS */
143 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
147 * hostapd_driver_init - Preparate driver interface
149 static int hostapd_driver_init(struct hostapd_iface *iface)
151 struct wpa_init_params params;
153 struct hostapd_data *hapd = iface->bss[0];
154 struct hostapd_bss_config *conf = hapd->conf;
156 struct wpa_driver_capa capa;
158 if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
159 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
163 /* Initialize the driver interface */
164 if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
167 os_memset(¶ms, 0, sizeof(params));
168 for (i = 0; wpa_drivers[i]; i++) {
169 if (wpa_drivers[i] != hapd->driver)
172 if (global.drv_priv[i] == NULL &&
173 wpa_drivers[i]->global_init) {
175 wpa_drivers[i]->global_init(iface->interfaces);
176 if (global.drv_priv[i] == NULL) {
177 wpa_printf(MSG_ERROR, "Failed to initialize "
179 wpa_drivers[i]->name);
184 params.global_priv = global.drv_priv[i];
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;
192 params.num_bridge = hapd->iface->num_bss;
193 params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
194 if (params.bridge == NULL)
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;
202 params.own_addr = hapd->own_addr;
204 hapd->drv_priv = hapd->driver->hapd_init(hapd, ¶ms);
205 os_free(params.bridge);
206 if (hapd->drv_priv == NULL) {
207 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
213 if (hapd->driver->get_capa &&
214 hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
215 struct wowlan_triggers *triggs;
217 iface->drv_flags = capa.flags;
218 iface->smps_modes = capa.smps_modes;
219 iface->probe_resp_offloads = capa.probe_resp_offloads;
221 * Use default extended capa values from per-radio information
223 iface->extended_capa = capa.extended_capa;
224 iface->extended_capa_mask = capa.extended_capa_mask;
225 iface->extended_capa_len = capa.extended_capa_len;
226 iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
229 * Override extended capa with per-interface type (AP), if
230 * available from the driver.
232 hostapd_get_ext_capa(iface);
234 triggs = wpa_get_wowlan_triggers(conf->wowlan_triggers, &capa);
235 if (triggs && hapd->driver->set_wowlan) {
236 if (hapd->driver->set_wowlan(hapd->drv_priv, triggs))
237 wpa_printf(MSG_ERROR, "set_wowlan failed");
247 * hostapd_interface_init - Read configuration file and init BSS data
249 * This function is used to parse configuration file for a full interface (one
250 * or more BSSes sharing the same radio) and allocate memory for the BSS
251 * interfaces. No actiual driver operations are started.
253 static struct hostapd_iface *
254 hostapd_interface_init(struct hapd_interfaces *interfaces, const char *if_name,
255 const char *config_fname, int debug)
257 struct hostapd_iface *iface;
260 wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
261 iface = hostapd_init(interfaces, config_fname);
266 os_strlcpy(iface->conf->bss[0]->iface, if_name,
267 sizeof(iface->conf->bss[0]->iface));
270 iface->interfaces = interfaces;
272 for (k = 0; k < debug; k++) {
273 if (iface->bss[0]->conf->logger_stdout_level > 0)
274 iface->bss[0]->conf->logger_stdout_level--;
277 if (iface->conf->bss[0]->iface[0] == '\0' &&
278 !hostapd_drv_none(iface->bss[0])) {
279 wpa_printf(MSG_ERROR,
280 "Interface name not specified in %s, nor by '-i' parameter",
282 hostapd_interface_deinit_free(iface);
291 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
293 static void handle_term(int sig, void *signal_ctx)
295 wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
300 #ifndef CONFIG_NATIVE_WINDOWS
302 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
304 if (hostapd_reload_config(iface) < 0) {
305 wpa_printf(MSG_WARNING, "Failed to read new configuration "
306 "file - continuing with old.");
313 * handle_reload - SIGHUP handler to reload configuration
315 static void handle_reload(int sig, void *signal_ctx)
317 struct hapd_interfaces *interfaces = signal_ctx;
318 wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
320 hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
324 static void handle_dump_state(int sig, void *signal_ctx)
326 /* Not used anymore - ignore signal */
328 #endif /* CONFIG_NATIVE_WINDOWS */
331 static int hostapd_global_init(struct hapd_interfaces *interfaces,
332 const char *entropy_file)
336 os_memset(&global, 0, sizeof(global));
338 hostapd_logger_register_cb(hostapd_logger_cb);
340 if (eap_server_register_methods()) {
341 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
346 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
349 interfaces->eloop_initialized = 1;
351 random_init(entropy_file);
353 #ifndef CONFIG_NATIVE_WINDOWS
354 eloop_register_signal(SIGHUP, handle_reload, interfaces);
355 eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
356 #endif /* CONFIG_NATIVE_WINDOWS */
357 eloop_register_signal_terminate(handle_term, interfaces);
359 #ifndef CONFIG_NATIVE_WINDOWS
360 openlog("hostapd", 0, LOG_DAEMON);
361 #endif /* CONFIG_NATIVE_WINDOWS */
363 for (i = 0; wpa_drivers[i]; i++)
365 if (global.drv_count == 0) {
366 wpa_printf(MSG_ERROR, "No drivers enabled");
369 global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
370 if (global.drv_priv == NULL)
377 static void hostapd_global_deinit(const char *pid_file, int eloop_initialized)
381 for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
382 if (!global.drv_priv[i])
384 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
386 os_free(global.drv_priv);
387 global.drv_priv = NULL;
389 #ifdef EAP_SERVER_TNC
390 tncs_global_deinit();
391 #endif /* EAP_SERVER_TNC */
395 if (eloop_initialized)
398 #ifndef CONFIG_NATIVE_WINDOWS
400 #endif /* CONFIG_NATIVE_WINDOWS */
402 eap_server_unregister_methods();
404 os_daemonize_terminate(pid_file);
408 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
409 const char *pid_file)
411 #ifdef EAP_SERVER_TNC
415 for (i = 0; !tnc && i < ifaces->count; i++) {
416 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
417 if (ifaces->iface[i]->bss[0]->conf->tnc) {
424 if (tnc && tncs_global_init() < 0) {
425 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
428 #endif /* EAP_SERVER_TNC */
431 if (os_daemonize(pid_file)) {
432 wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
435 if (eloop_sock_requeue()) {
436 wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
448 static void show_version(void)
451 "hostapd v" VERSION_STR "\n"
452 "User space daemon for IEEE 802.11 AP management,\n"
453 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
454 "Copyright (c) 2002-2016, Jouni Malinen <j@w1.fi> "
455 "and contributors\n");
459 static void usage(void)
464 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
466 " [-g <global ctrl_iface>] [-G <group>]\\\n"
467 " [-i <comma-separated list of interface names>]\\\n"
468 " <configuration file(s)>\n"
471 " -h show this usage\n"
472 " -d show more debug messages (-dd for even more)\n"
473 " -B run daemon in the background\n"
475 " -g global control interface path\n"
476 " -G group for control interfaces\n"
478 " -K include key data in debug messages\n"
479 #ifdef CONFIG_DEBUG_FILE
480 " -f log output to debug file instead of stdout\n"
481 #endif /* CONFIG_DEBUG_FILE */
482 #ifdef CONFIG_DEBUG_LINUX_TRACING
483 " -T = record to Linux tracing in addition to logging\n"
484 " (records all messages regardless of debug verbosity)\n"
485 #endif /* CONFIG_DEBUG_LINUX_TRACING */
486 " -i list of interface names to use\n"
487 " -S start all the interfaces synchronously\n"
488 " -t include timestamps in some debug messages\n"
489 " -v show hostapd version\n");
495 static const char * hostapd_msg_ifname_cb(void *ctx)
497 struct hostapd_data *hapd = ctx;
498 if (hapd && hapd->conf)
499 return hapd->conf->iface;
504 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
507 #ifndef CONFIG_CTRL_IFACE_UDP
509 #endif /* !CONFIG_CTRL_IFACE_UDP */
511 os_free(interfaces->global_iface_path);
512 interfaces->global_iface_path = os_strdup(path);
513 if (interfaces->global_iface_path == NULL)
516 #ifndef CONFIG_CTRL_IFACE_UDP
517 pos = os_strrchr(interfaces->global_iface_path, '/');
519 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
521 os_free(interfaces->global_iface_path);
522 interfaces->global_iface_path = NULL;
527 interfaces->global_iface_name = pos + 1;
528 #endif /* !CONFIG_CTRL_IFACE_UDP */
534 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
537 #ifndef CONFIG_NATIVE_WINDOWS
539 grp = getgrnam(group);
541 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
544 interfaces->ctrl_iface_group = grp->gr_gid;
545 #endif /* CONFIG_NATIVE_WINDOWS */
550 static int hostapd_get_interface_names(char ***if_names,
551 size_t *if_names_size,
554 char *if_name, *tmp, **nnames;
559 if_name = strtok_r(optarg, ",", &tmp);
562 nnames = os_realloc_array(*if_names, 1 + *if_names_size,
568 (*if_names)[*if_names_size] = os_strdup(if_name);
569 if (!(*if_names)[*if_names_size])
572 if_name = strtok_r(NULL, ",", &tmp);
578 for (i = 0; i < *if_names_size; i++)
579 os_free((*if_names)[i]);
588 static int gen_uuid(const char *txt_addr)
594 if (hwaddr_aton(txt_addr, addr) < 0)
597 uuid_gen_mac_addr(addr, uuid);
598 if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
605 #endif /* CONFIG_WPS */
608 #ifndef HOSTAPD_CLEANUP_INTERVAL
609 #define HOSTAPD_CLEANUP_INTERVAL 10
610 #endif /* HOSTAPD_CLEANUP_INTERVAL */
612 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
614 hostapd_periodic_iface(iface);
619 /* Periodic cleanup tasks */
620 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
622 struct hapd_interfaces *interfaces = eloop_ctx;
624 eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
625 hostapd_periodic, interfaces, NULL);
626 hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
630 int main(int argc, char *argv[])
632 struct hapd_interfaces interfaces;
635 int c, debug = 0, daemonize = 0;
636 char *pid_file = NULL;
637 const char *log_file = NULL;
638 const char *entropy_file = NULL;
639 char **bss_config = NULL, **tmp_bss;
640 size_t num_bss_configs = 0;
641 #ifdef CONFIG_DEBUG_LINUX_TRACING
642 int enable_trace_dbg = 0;
643 #endif /* CONFIG_DEBUG_LINUX_TRACING */
644 int start_ifaces_in_sync = 0;
645 char **if_names = NULL;
646 size_t if_names_size = 0;
648 if (os_program_init())
651 os_memset(&interfaces, 0, sizeof(interfaces));
652 interfaces.reload_config = hostapd_reload_config;
653 interfaces.config_read_cb = hostapd_config_read;
654 interfaces.for_each_interface = hostapd_for_each_interface;
655 interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
656 interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
657 interfaces.driver_init = hostapd_driver_init;
658 interfaces.global_iface_path = NULL;
659 interfaces.global_iface_name = NULL;
660 interfaces.global_ctrl_sock = -1;
661 dl_list_init(&interfaces.global_ctrl_dst);
664 c = getopt(argc, argv, "b:Bde:f:hi:KP:STtu:vg:G:");
673 if (wpa_debug_level > 0)
680 entropy_file = optarg;
686 wpa_debug_show_keys++;
690 pid_file = os_rel2abs_path(optarg);
693 wpa_debug_timestamp++;
695 #ifdef CONFIG_DEBUG_LINUX_TRACING
697 enable_trace_dbg = 1;
699 #endif /* CONFIG_DEBUG_LINUX_TRACING */
705 if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
709 if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
713 tmp_bss = os_realloc_array(bss_config,
718 bss_config = tmp_bss;
719 bss_config[num_bss_configs++] = optarg;
722 start_ifaces_in_sync = 1;
726 return gen_uuid(optarg);
727 #endif /* CONFIG_WPS */
729 if (hostapd_get_interface_names(&if_names,
730 &if_names_size, optarg))
739 if (optind == argc && interfaces.global_iface_path == NULL &&
740 num_bss_configs == 0)
743 wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
746 wpa_debug_open_file(log_file);
748 wpa_debug_setup_stdout();
749 #ifdef CONFIG_DEBUG_LINUX_TRACING
750 if (enable_trace_dbg) {
751 int tret = wpa_debug_open_linux_tracing();
753 wpa_printf(MSG_ERROR, "Failed to enable trace logging");
757 #endif /* CONFIG_DEBUG_LINUX_TRACING */
759 interfaces.count = argc - optind;
760 if (interfaces.count || num_bss_configs) {
761 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
762 sizeof(struct hostapd_iface *));
763 if (interfaces.iface == NULL) {
764 wpa_printf(MSG_ERROR, "malloc failed");
769 if (hostapd_global_init(&interfaces, entropy_file)) {
770 wpa_printf(MSG_ERROR, "Failed to initialize global context");
774 eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
775 hostapd_periodic, &interfaces, NULL);
777 if (fst_global_init()) {
778 wpa_printf(MSG_ERROR,
779 "Failed to initialize global FST context");
783 #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
784 if (!fst_global_add_ctrl(fst_ctrl_cli))
785 wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
786 #endif /* CONFIG_FST && CONFIG_CTRL_IFACE */
788 /* Allocate and parse configuration for full interface files */
789 for (i = 0; i < interfaces.count; i++) {
790 char *if_name = NULL;
792 if (i < if_names_size)
793 if_name = if_names[i];
795 interfaces.iface[i] = hostapd_interface_init(&interfaces,
799 if (!interfaces.iface[i]) {
800 wpa_printf(MSG_ERROR, "Failed to initialize interface");
803 if (start_ifaces_in_sync)
804 interfaces.iface[i]->need_to_start_in_sync = 1;
807 /* Allocate and parse configuration for per-BSS files */
808 for (i = 0; i < num_bss_configs; i++) {
809 struct hostapd_iface *iface;
812 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
813 fname = os_strchr(bss_config[i], ':');
815 wpa_printf(MSG_ERROR,
816 "Invalid BSS config identifier '%s'",
821 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
825 for (j = 0; j < interfaces.count; j++) {
826 if (interfaces.iface[j] == iface)
829 if (j == interfaces.count) {
830 struct hostapd_iface **tmp;
831 tmp = os_realloc_array(interfaces.iface,
832 interfaces.count + 1,
833 sizeof(struct hostapd_iface *));
835 hostapd_interface_deinit_free(iface);
838 interfaces.iface = tmp;
839 interfaces.iface[interfaces.count++] = iface;
844 * Enable configured interfaces. Depending on channel configuration,
845 * this may complete full initialization before returning or use a
846 * callback mechanism to complete setup in case of operations like HT
847 * co-ex scans, ACS, or DFS are needed to determine channel parameters.
848 * In such case, the interface will be enabled from eloop context within
849 * hostapd_global_run().
851 interfaces.terminate_on_error = interfaces.count;
852 for (i = 0; i < interfaces.count; i++) {
853 if (hostapd_driver_init(interfaces.iface[i]) ||
854 hostapd_setup_interface(interfaces.iface[i]))
858 hostapd_global_ctrl_iface_init(&interfaces);
860 if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
861 wpa_printf(MSG_ERROR, "Failed to start eloop");
868 hostapd_global_ctrl_iface_deinit(&interfaces);
869 /* Deinitialize all interfaces */
870 for (i = 0; i < interfaces.count; i++) {
871 if (!interfaces.iface[i])
873 interfaces.iface[i]->driver_ap_teardown =
874 !!(interfaces.iface[i]->drv_flags &
875 WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT);
876 hostapd_interface_deinit_free(interfaces.iface[i]);
878 os_free(interfaces.iface);
880 if (interfaces.eloop_initialized)
881 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
882 hostapd_global_deinit(pid_file, interfaces.eloop_initialized);
886 wpa_debug_close_file();
887 wpa_debug_close_linux_tracing();
891 for (i = 0; i < if_names_size; i++)
892 os_free(if_names[i]);