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) {
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 "
178 wpa_drivers[i]->name);
183 params.global_priv = global.drv_priv[i];
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;
191 params.num_bridge = hapd->iface->num_bss;
192 params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
193 if (params.bridge == NULL)
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;
201 params.own_addr = hapd->own_addr;
203 hapd->drv_priv = hapd->driver->hapd_init(hapd, ¶ms);
204 os_free(params.bridge);
205 if (hapd->drv_priv == NULL) {
206 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
212 if (hapd->driver->get_capa &&
213 hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
214 struct wowlan_triggers *triggs;
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;
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");
237 * hostapd_interface_init - Read configuration file and init BSS data
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.
243 static struct hostapd_iface *
244 hostapd_interface_init(struct hapd_interfaces *interfaces,
245 const char *config_fname, int debug)
247 struct hostapd_iface *iface;
250 wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
251 iface = hostapd_init(interfaces, config_fname);
254 iface->interfaces = interfaces;
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--;
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",
265 hostapd_interface_deinit_free(iface);
274 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
276 static void handle_term(int sig, void *signal_ctx)
278 wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
283 #ifndef CONFIG_NATIVE_WINDOWS
285 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
287 if (hostapd_reload_config(iface) < 0) {
288 wpa_printf(MSG_WARNING, "Failed to read new configuration "
289 "file - continuing with old.");
296 * handle_reload - SIGHUP handler to reload configuration
298 static void handle_reload(int sig, void *signal_ctx)
300 struct hapd_interfaces *interfaces = signal_ctx;
301 wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
303 hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
307 static void handle_dump_state(int sig, void *signal_ctx)
309 /* Not used anymore - ignore signal */
311 #endif /* CONFIG_NATIVE_WINDOWS */
314 static int hostapd_global_init(struct hapd_interfaces *interfaces,
315 const char *entropy_file)
319 os_memset(&global, 0, sizeof(global));
321 hostapd_logger_register_cb(hostapd_logger_cb);
323 if (eap_server_register_methods()) {
324 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
329 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
333 random_init(entropy_file);
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);
341 #ifndef CONFIG_NATIVE_WINDOWS
342 openlog("hostapd", 0, LOG_DAEMON);
343 #endif /* CONFIG_NATIVE_WINDOWS */
345 for (i = 0; wpa_drivers[i]; i++)
347 if (global.drv_count == 0) {
348 wpa_printf(MSG_ERROR, "No drivers enabled");
351 global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
352 if (global.drv_priv == NULL)
359 static void hostapd_global_deinit(const char *pid_file)
363 for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
364 if (!global.drv_priv[i])
366 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
368 os_free(global.drv_priv);
369 global.drv_priv = NULL;
371 #ifdef EAP_SERVER_TNC
372 tncs_global_deinit();
373 #endif /* EAP_SERVER_TNC */
379 #ifndef CONFIG_NATIVE_WINDOWS
381 #endif /* CONFIG_NATIVE_WINDOWS */
383 eap_server_unregister_methods();
385 os_daemonize_terminate(pid_file);
389 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
390 const char *pid_file)
392 #ifdef EAP_SERVER_TNC
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) {
405 if (tnc && tncs_global_init() < 0) {
406 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
409 #endif /* EAP_SERVER_TNC */
412 if (os_daemonize(pid_file)) {
413 wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
416 if (eloop_sock_requeue()) {
417 wpa_printf(MSG_ERROR, "eloop_sock_requeue: %s",
429 static void show_version(void)
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");
440 static void usage(void)
445 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
447 " [-g <global ctrl_iface>] [-G <group>] \\\n"
448 " <configuration file(s)>\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"
455 " -g global control interface path\n"
456 " -G group for control interfaces\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");
474 static const char * hostapd_msg_ifname_cb(void *ctx)
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;
484 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
488 os_free(interfaces->global_iface_path);
489 interfaces->global_iface_path = os_strdup(path);
490 if (interfaces->global_iface_path == NULL)
492 pos = os_strrchr(interfaces->global_iface_path, '/');
494 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
496 os_free(interfaces->global_iface_path);
497 interfaces->global_iface_path = NULL;
502 interfaces->global_iface_name = pos + 1;
508 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
511 #ifndef CONFIG_NATIVE_WINDOWS
513 grp = getgrnam(group);
515 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
518 interfaces->ctrl_iface_group = grp->gr_gid;
519 #endif /* CONFIG_NATIVE_WINDOWS */
525 static int gen_uuid(const char *txt_addr)
531 if (hwaddr_aton(txt_addr, addr) < 0)
534 uuid_gen_mac_addr(addr, uuid);
535 if (uuid_bin2str(uuid, buf, sizeof(buf)) < 0)
542 #endif /* CONFIG_WPS */
545 #ifndef HOSTAPD_CLEANUP_INTERVAL
546 #define HOSTAPD_CLEANUP_INTERVAL 10
547 #endif /* HOSTAPD_CLEANUP_INTERVAL */
549 static int hostapd_periodic_call(struct hostapd_iface *iface, void *ctx)
551 hostapd_periodic_iface(iface);
556 /* Periodic cleanup tasks */
557 static void hostapd_periodic(void *eloop_ctx, void *timeout_ctx)
559 struct hapd_interfaces *interfaces = eloop_ctx;
561 eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
562 hostapd_periodic, interfaces, NULL);
563 hostapd_for_each_interface(interfaces, hostapd_periodic_call, NULL);
567 int main(int argc, char *argv[])
569 struct hapd_interfaces interfaces;
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;
583 if (os_program_init())
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;
599 c = getopt(argc, argv, "b:Bde:f:hKP:STtu:vg:G:");
608 if (wpa_debug_level > 0)
615 entropy_file = optarg;
621 wpa_debug_show_keys++;
625 pid_file = os_rel2abs_path(optarg);
628 wpa_debug_timestamp++;
630 #ifdef CONFIG_DEBUG_LINUX_TRACING
632 enable_trace_dbg = 1;
634 #endif /* CONFIG_DEBUG_LINUX_TRACING */
640 if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
644 if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
648 tmp_bss = os_realloc_array(bss_config,
653 bss_config = tmp_bss;
654 bss_config[num_bss_configs++] = optarg;
657 start_ifaces_in_sync = 1;
661 return gen_uuid(optarg);
662 #endif /* CONFIG_WPS */
669 if (optind == argc && interfaces.global_iface_path == NULL &&
670 num_bss_configs == 0)
673 wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
676 wpa_debug_open_file(log_file);
678 wpa_debug_setup_stdout();
679 #ifdef CONFIG_DEBUG_LINUX_TRACING
680 if (enable_trace_dbg) {
681 int tret = wpa_debug_open_linux_tracing();
683 wpa_printf(MSG_ERROR, "Failed to enable trace logging");
687 #endif /* CONFIG_DEBUG_LINUX_TRACING */
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");
699 if (hostapd_global_init(&interfaces, entropy_file)) {
700 wpa_printf(MSG_ERROR, "Failed to initialize global context");
704 eloop_register_timeout(HOSTAPD_CLEANUP_INTERVAL, 0,
705 hostapd_periodic, &interfaces, NULL);
707 if (fst_global_init()) {
708 wpa_printf(MSG_ERROR,
709 "Failed to initialize global FST context");
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 */
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,
723 if (!interfaces.iface[i]) {
724 wpa_printf(MSG_ERROR, "Failed to initialize interface");
727 if (start_ifaces_in_sync)
728 interfaces.iface[i]->need_to_start_in_sync = 1;
731 /* Allocate and parse configuration for per-BSS files */
732 for (i = 0; i < num_bss_configs; i++) {
733 struct hostapd_iface *iface;
736 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
737 fname = os_strchr(bss_config[i], ':');
739 wpa_printf(MSG_ERROR,
740 "Invalid BSS config identifier '%s'",
745 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
749 for (j = 0; j < interfaces.count; j++) {
750 if (interfaces.iface[j] == iface)
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 *));
759 hostapd_interface_deinit_free(iface);
762 interfaces.iface = tmp;
763 interfaces.iface[interfaces.count++] = iface;
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().
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]))
782 hostapd_global_ctrl_iface_init(&interfaces);
784 if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
785 wpa_printf(MSG_ERROR, "Failed to start eloop");
792 hostapd_global_ctrl_iface_deinit(&interfaces);
793 /* Deinitialize all interfaces */
794 for (i = 0; i < interfaces.count; i++) {
795 if (!interfaces.iface[i])
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]);
802 os_free(interfaces.iface);
804 eloop_cancel_timeout(hostapd_periodic, &interfaces, NULL);
805 hostapd_global_deinit(pid_file);
809 wpa_debug_close_file();
810 wpa_debug_close_linux_tracing();