Fix AP mode QoS Map configuration to be per-BSS
[mech_eap.git] / hostapd / main.c
1 /*
2  * hostapd / main()
3  * Copyright (c) 2002-2011, 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 "crypto/random.h"
18 #include "crypto/tls.h"
19 #include "common/version.h"
20 #include "drivers/driver.h"
21 #include "eap_server/eap.h"
22 #include "eap_server/tncs.h"
23 #include "ap/hostapd.h"
24 #include "ap/ap_config.h"
25 #include "ap/ap_drv_ops.h"
26 #include "config_file.h"
27 #include "eap_register.h"
28 #include "dump_state.h"
29 #include "ctrl_iface.h"
30
31
32 extern int wpa_debug_level;
33 extern int wpa_debug_show_keys;
34 extern int wpa_debug_timestamp;
35
36 extern struct wpa_driver_ops *wpa_drivers[];
37
38
39 struct hapd_global {
40         void **drv_priv;
41         size_t drv_count;
42 };
43
44 static struct hapd_global global;
45
46
47 #ifndef CONFIG_NO_HOSTAPD_LOGGER
48 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
49                               int level, const char *txt, size_t len)
50 {
51         struct hostapd_data *hapd = ctx;
52         char *format, *module_str;
53         int maxlen;
54         int conf_syslog_level, conf_stdout_level;
55         unsigned int conf_syslog, conf_stdout;
56
57         maxlen = len + 100;
58         format = os_malloc(maxlen);
59         if (!format)
60                 return;
61
62         if (hapd && hapd->conf) {
63                 conf_syslog_level = hapd->conf->logger_syslog_level;
64                 conf_stdout_level = hapd->conf->logger_stdout_level;
65                 conf_syslog = hapd->conf->logger_syslog;
66                 conf_stdout = hapd->conf->logger_stdout;
67         } else {
68                 conf_syslog_level = conf_stdout_level = 0;
69                 conf_syslog = conf_stdout = (unsigned int) -1;
70         }
71
72         switch (module) {
73         case HOSTAPD_MODULE_IEEE80211:
74                 module_str = "IEEE 802.11";
75                 break;
76         case HOSTAPD_MODULE_IEEE8021X:
77                 module_str = "IEEE 802.1X";
78                 break;
79         case HOSTAPD_MODULE_RADIUS:
80                 module_str = "RADIUS";
81                 break;
82         case HOSTAPD_MODULE_WPA:
83                 module_str = "WPA";
84                 break;
85         case HOSTAPD_MODULE_DRIVER:
86                 module_str = "DRIVER";
87                 break;
88         case HOSTAPD_MODULE_IAPP:
89                 module_str = "IAPP";
90                 break;
91         case HOSTAPD_MODULE_MLME:
92                 module_str = "MLME";
93                 break;
94         default:
95                 module_str = NULL;
96                 break;
97         }
98
99         if (hapd && hapd->conf && addr)
100                 os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
101                             hapd->conf->iface, MAC2STR(addr),
102                             module_str ? " " : "", module_str, txt);
103         else if (hapd && hapd->conf)
104                 os_snprintf(format, maxlen, "%s:%s%s %s",
105                             hapd->conf->iface, module_str ? " " : "",
106                             module_str, txt);
107         else if (addr)
108                 os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
109                             MAC2STR(addr), module_str ? " " : "",
110                             module_str, txt);
111         else
112                 os_snprintf(format, maxlen, "%s%s%s",
113                             module_str, module_str ? ": " : "", txt);
114
115         if ((conf_stdout & module) && level >= conf_stdout_level) {
116                 wpa_debug_print_timestamp();
117                 wpa_printf(MSG_INFO, "%s", format);
118         }
119
120 #ifndef CONFIG_NATIVE_WINDOWS
121         if ((conf_syslog & module) && level >= conf_syslog_level) {
122                 int priority;
123                 switch (level) {
124                 case HOSTAPD_LEVEL_DEBUG_VERBOSE:
125                 case HOSTAPD_LEVEL_DEBUG:
126                         priority = LOG_DEBUG;
127                         break;
128                 case HOSTAPD_LEVEL_INFO:
129                         priority = LOG_INFO;
130                         break;
131                 case HOSTAPD_LEVEL_NOTICE:
132                         priority = LOG_NOTICE;
133                         break;
134                 case HOSTAPD_LEVEL_WARNING:
135                         priority = LOG_WARNING;
136                         break;
137                 default:
138                         priority = LOG_INFO;
139                         break;
140                 }
141                 syslog(priority, "%s", format);
142         }
143 #endif /* CONFIG_NATIVE_WINDOWS */
144
145         os_free(format);
146 }
147 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
148
149
150 static int hostapd_driver_init(struct hostapd_iface *iface)
151 {
152         struct wpa_init_params params;
153         size_t i;
154         struct hostapd_data *hapd = iface->bss[0];
155         struct hostapd_bss_config *conf = hapd->conf;
156         u8 *b = conf->bssid;
157         struct wpa_driver_capa capa;
158
159         if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
160                 wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
161                 return -1;
162         }
163
164         /* Initialize the driver interface */
165         if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
166                 b = NULL;
167
168         os_memset(&params, 0, sizeof(params));
169         for (i = 0; wpa_drivers[i]; i++) {
170                 if (wpa_drivers[i] != hapd->driver)
171                         continue;
172
173                 if (global.drv_priv[i] == NULL &&
174                     wpa_drivers[i]->global_init) {
175                         global.drv_priv[i] = wpa_drivers[i]->global_init();
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.ssid = hapd->conf->ssid.ssid;
190         params.ssid_len = hapd->conf->ssid.ssid_len;
191         params.test_socket = hapd->conf->test_socket;
192         params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
193
194         params.num_bridge = hapd->iface->num_bss;
195         params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
196         if (params.bridge == NULL)
197                 return -1;
198         for (i = 0; i < hapd->iface->num_bss; i++) {
199                 struct hostapd_data *bss = hapd->iface->bss[i];
200                 if (bss->conf->bridge[0])
201                         params.bridge[i] = bss->conf->bridge;
202         }
203
204         params.own_addr = hapd->own_addr;
205
206         hapd->drv_priv = hapd->driver->hapd_init(hapd, &params);
207         os_free(params.bridge);
208         if (hapd->drv_priv == NULL) {
209                 wpa_printf(MSG_ERROR, "%s driver initialization failed.",
210                            hapd->driver->name);
211                 hapd->driver = NULL;
212                 return -1;
213         }
214
215         if (hapd->driver->get_capa &&
216             hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
217                 iface->drv_flags = capa.flags;
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
225         return 0;
226 }
227
228
229 static struct hostapd_iface *
230 hostapd_interface_init(struct hapd_interfaces *interfaces,
231                        const char *config_fname, int debug)
232 {
233         struct hostapd_iface *iface;
234         int k;
235
236         wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
237         iface = hostapd_init(interfaces, config_fname);
238         if (!iface)
239                 return NULL;
240         iface->interfaces = interfaces;
241
242         for (k = 0; k < debug; k++) {
243                 if (iface->bss[0]->conf->logger_stdout_level > 0)
244                         iface->bss[0]->conf->logger_stdout_level--;
245         }
246
247         if (iface->conf->bss[0]->iface[0] == '\0' &&
248             !hostapd_drv_none(iface->bss[0])) {
249                 wpa_printf(MSG_ERROR, "Interface name not specified in %s",
250                            config_fname);
251                 hostapd_interface_deinit_free(iface);
252                 return NULL;
253         }
254
255         return iface;
256 }
257
258
259 /**
260  * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
261  */
262 static void handle_term(int sig, void *signal_ctx)
263 {
264         wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
265         eloop_terminate();
266 }
267
268
269 #ifndef CONFIG_NATIVE_WINDOWS
270
271 static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
272 {
273         if (hostapd_reload_config(iface) < 0) {
274                 wpa_printf(MSG_WARNING, "Failed to read new configuration "
275                            "file - continuing with old.");
276         }
277         return 0;
278 }
279
280
281 /**
282  * handle_reload - SIGHUP handler to reload configuration
283  */
284 static void handle_reload(int sig, void *signal_ctx)
285 {
286         struct hapd_interfaces *interfaces = signal_ctx;
287         wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
288                    sig);
289         hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
290 }
291
292
293 static void handle_dump_state(int sig, void *signal_ctx)
294 {
295 #ifdef HOSTAPD_DUMP_STATE
296         struct hapd_interfaces *interfaces = signal_ctx;
297         hostapd_for_each_interface(interfaces, handle_dump_state_iface, NULL);
298 #endif /* HOSTAPD_DUMP_STATE */
299 }
300 #endif /* CONFIG_NATIVE_WINDOWS */
301
302
303 static int hostapd_global_init(struct hapd_interfaces *interfaces,
304                                const char *entropy_file)
305 {
306         int i;
307
308         os_memset(&global, 0, sizeof(global));
309
310         hostapd_logger_register_cb(hostapd_logger_cb);
311
312         if (eap_server_register_methods()) {
313                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
314                 return -1;
315         }
316
317         if (eloop_init()) {
318                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
319                 return -1;
320         }
321
322         random_init(entropy_file);
323
324 #ifndef CONFIG_NATIVE_WINDOWS
325         eloop_register_signal(SIGHUP, handle_reload, interfaces);
326         eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
327 #endif /* CONFIG_NATIVE_WINDOWS */
328         eloop_register_signal_terminate(handle_term, interfaces);
329
330 #ifndef CONFIG_NATIVE_WINDOWS
331         openlog("hostapd", 0, LOG_DAEMON);
332 #endif /* CONFIG_NATIVE_WINDOWS */
333
334         for (i = 0; wpa_drivers[i]; i++)
335                 global.drv_count++;
336         if (global.drv_count == 0) {
337                 wpa_printf(MSG_ERROR, "No drivers enabled");
338                 return -1;
339         }
340         global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
341         if (global.drv_priv == NULL)
342                 return -1;
343
344         return 0;
345 }
346
347
348 static void hostapd_global_deinit(const char *pid_file)
349 {
350         int i;
351
352         for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
353                 if (!global.drv_priv[i])
354                         continue;
355                 wpa_drivers[i]->global_deinit(global.drv_priv[i]);
356         }
357         os_free(global.drv_priv);
358         global.drv_priv = NULL;
359
360 #ifdef EAP_SERVER_TNC
361         tncs_global_deinit();
362 #endif /* EAP_SERVER_TNC */
363
364         random_deinit();
365
366         eloop_destroy();
367
368 #ifndef CONFIG_NATIVE_WINDOWS
369         closelog();
370 #endif /* CONFIG_NATIVE_WINDOWS */
371
372         eap_server_unregister_methods();
373
374         os_daemonize_terminate(pid_file);
375 }
376
377
378 static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
379                               const char *pid_file)
380 {
381 #ifdef EAP_SERVER_TNC
382         int tnc = 0;
383         size_t i, k;
384
385         for (i = 0; !tnc && i < ifaces->count; i++) {
386                 for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
387                         if (ifaces->iface[i]->bss[0]->conf->tnc) {
388                                 tnc++;
389                                 break;
390                         }
391                 }
392         }
393
394         if (tnc && tncs_global_init() < 0) {
395                 wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
396                 return -1;
397         }
398 #endif /* EAP_SERVER_TNC */
399
400         if (daemonize && os_daemonize(pid_file)) {
401                 perror("daemon");
402                 return -1;
403         }
404
405         eloop_run();
406
407         return 0;
408 }
409
410
411 static void show_version(void)
412 {
413         fprintf(stderr,
414                 "hostapd v" VERSION_STR "\n"
415                 "User space daemon for IEEE 802.11 AP management,\n"
416                 "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
417                 "Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi> "
418                 "and contributors\n");
419 }
420
421
422 static void usage(void)
423 {
424         show_version();
425         fprintf(stderr,
426                 "\n"
427                 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
428                 "\\\n"
429                 "         [-g <global ctrl_iface>] [-G <group>] \\\n"
430                 "         <configuration file(s)>\n"
431                 "\n"
432                 "options:\n"
433                 "   -h   show this usage\n"
434                 "   -d   show more debug messages (-dd for even more)\n"
435                 "   -B   run daemon in the background\n"
436                 "   -e   entropy file\n"
437                 "   -g   global control interface path\n"
438                 "   -G   group for control interfaces\n"
439                 "   -P   PID file\n"
440                 "   -K   include key data in debug messages\n"
441 #ifdef CONFIG_DEBUG_FILE
442                 "   -f   log output to debug file instead of stdout\n"
443 #endif /* CONFIG_DEBUG_FILE */
444 #ifdef CONFIG_DEBUG_LINUX_TRACING
445                 "   -T = record to Linux tracing in addition to logging\n"
446                 "        (records all messages regardless of debug verbosity)\n"
447 #endif /* CONFIG_DEBUG_LINUX_TRACING */
448                 "   -t   include timestamps in some debug messages\n"
449                 "   -v   show hostapd version\n");
450
451         exit(1);
452 }
453
454
455 static const char * hostapd_msg_ifname_cb(void *ctx)
456 {
457         struct hostapd_data *hapd = ctx;
458         if (hapd && hapd->iconf && hapd->iconf->bss &&
459             hapd->iconf->num_bss > 0 && hapd->iconf->bss[0])
460                 return hapd->iconf->bss[0]->iface;
461         return NULL;
462 }
463
464
465 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
466                                          const char *path)
467 {
468         char *pos;
469         os_free(interfaces->global_iface_path);
470         interfaces->global_iface_path = os_strdup(path);
471         if (interfaces->global_iface_path == NULL)
472                 return -1;
473         pos = os_strrchr(interfaces->global_iface_path, '/');
474         if (pos == NULL) {
475                 wpa_printf(MSG_ERROR, "No '/' in the global control interface "
476                            "file");
477                 os_free(interfaces->global_iface_path);
478                 interfaces->global_iface_path = NULL;
479                 return -1;
480         }
481
482         *pos = '\0';
483         interfaces->global_iface_name = pos + 1;
484
485         return 0;
486 }
487
488
489 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces *interfaces,
490                                         const char *group)
491 {
492 #ifndef CONFIG_NATIVE_WINDOWS
493         struct group *grp;
494         grp = getgrnam(group);
495         if (grp == NULL) {
496                 wpa_printf(MSG_ERROR, "Unknown group '%s'", group);
497                 return -1;
498         }
499         interfaces->ctrl_iface_group = grp->gr_gid;
500 #endif /* CONFIG_NATIVE_WINDOWS */
501         return 0;
502 }
503
504
505 int main(int argc, char *argv[])
506 {
507         struct hapd_interfaces interfaces;
508         int ret = 1;
509         size_t i, j;
510         int c, debug = 0, daemonize = 0;
511         char *pid_file = NULL;
512         const char *log_file = NULL;
513         const char *entropy_file = NULL;
514         char **bss_config = NULL, **tmp_bss;
515         size_t num_bss_configs = 0;
516 #ifdef CONFIG_DEBUG_LINUX_TRACING
517         int enable_trace_dbg = 0;
518 #endif /* CONFIG_DEBUG_LINUX_TRACING */
519
520         if (os_program_init())
521                 return -1;
522
523         os_memset(&interfaces, 0, sizeof(interfaces));
524         interfaces.reload_config = hostapd_reload_config;
525         interfaces.config_read_cb = hostapd_config_read;
526         interfaces.for_each_interface = hostapd_for_each_interface;
527         interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
528         interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
529         interfaces.driver_init = hostapd_driver_init;
530         interfaces.global_iface_path = NULL;
531         interfaces.global_iface_name = NULL;
532         interfaces.global_ctrl_sock = -1;
533
534         for (;;) {
535                 c = getopt(argc, argv, "b:Bde:f:hKP:Ttvg:G:");
536                 if (c < 0)
537                         break;
538                 switch (c) {
539                 case 'h':
540                         usage();
541                         break;
542                 case 'd':
543                         debug++;
544                         if (wpa_debug_level > 0)
545                                 wpa_debug_level--;
546                         break;
547                 case 'B':
548                         daemonize++;
549                         break;
550                 case 'e':
551                         entropy_file = optarg;
552                         break;
553                 case 'f':
554                         log_file = optarg;
555                         break;
556                 case 'K':
557                         wpa_debug_show_keys++;
558                         break;
559                 case 'P':
560                         os_free(pid_file);
561                         pid_file = os_rel2abs_path(optarg);
562                         break;
563                 case 't':
564                         wpa_debug_timestamp++;
565                         break;
566 #ifdef CONFIG_DEBUG_LINUX_TRACING
567                 case 'T':
568                         enable_trace_dbg = 1;
569                         break;
570 #endif /* CONFIG_DEBUG_LINUX_TRACING */
571                 case 'v':
572                         show_version();
573                         exit(1);
574                         break;
575                 case 'g':
576                         if (hostapd_get_global_ctrl_iface(&interfaces, optarg))
577                                 return -1;
578                         break;
579                 case 'G':
580                         if (hostapd_get_ctrl_iface_group(&interfaces, optarg))
581                                 return -1;
582                         break;
583                 case 'b':
584                         tmp_bss = os_realloc_array(bss_config,
585                                                    num_bss_configs + 1,
586                                                    sizeof(char *));
587                         if (tmp_bss == NULL)
588                                 goto out;
589                         bss_config = tmp_bss;
590                         bss_config[num_bss_configs++] = optarg;
591                         break;
592                 default:
593                         usage();
594                         break;
595                 }
596         }
597
598         if (optind == argc && interfaces.global_iface_path == NULL &&
599             num_bss_configs == 0)
600                 usage();
601
602         wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
603
604         if (log_file)
605                 wpa_debug_open_file(log_file);
606 #ifdef CONFIG_DEBUG_LINUX_TRACING
607         if (enable_trace_dbg) {
608                 int tret = wpa_debug_open_linux_tracing();
609                 if (tret) {
610                         wpa_printf(MSG_ERROR, "Failed to enable trace logging");
611                         return -1;
612                 }
613         }
614 #endif /* CONFIG_DEBUG_LINUX_TRACING */
615
616         interfaces.count = argc - optind;
617         if (interfaces.count || num_bss_configs) {
618                 interfaces.iface = os_calloc(interfaces.count + num_bss_configs,
619                                              sizeof(struct hostapd_iface *));
620                 if (interfaces.iface == NULL) {
621                         wpa_printf(MSG_ERROR, "malloc failed");
622                         return -1;
623                 }
624         }
625
626         if (hostapd_global_init(&interfaces, entropy_file)) {
627                 wpa_printf(MSG_ERROR, "Failed to initilize global context");
628                 return -1;
629         }
630
631         /* Initialize interfaces */
632         for (i = 0; i < interfaces.count; i++) {
633                 interfaces.iface[i] = hostapd_interface_init(&interfaces,
634                                                              argv[optind + i],
635                                                              debug);
636                 if (!interfaces.iface[i]) {
637                         wpa_printf(MSG_ERROR, "Failed to initialize interface");
638                         goto out;
639                 }
640         }
641
642         for (i = 0; i < num_bss_configs; i++) {
643                 struct hostapd_iface *iface;
644                 char *fname;
645
646                 wpa_printf(MSG_INFO, "BSS config: %s", bss_config[i]);
647                 fname = os_strchr(bss_config[i], ':');
648                 if (fname == NULL) {
649                         wpa_printf(MSG_ERROR,
650                                    "Invalid BSS config identifier '%s'",
651                                    bss_config[i]);
652                         goto out;
653                 }
654                 *fname++ = '\0';
655                 iface = hostapd_interface_init_bss(&interfaces, bss_config[i],
656                                                    fname, debug);
657                 if (iface == NULL)
658                         goto out;
659                 for (j = 0; j < interfaces.count; j++) {
660                         if (interfaces.iface[j] == iface)
661                                 break;
662                 }
663                 if (j == interfaces.count) {
664                         struct hostapd_iface **tmp;
665                         tmp = os_realloc_array(interfaces.iface,
666                                                interfaces.count + 1,
667                                                sizeof(struct hostapd_iface *));
668                         if (tmp == NULL) {
669                                 hostapd_interface_deinit_free(iface);
670                                 goto out;
671                         }
672                         interfaces.iface = tmp;
673                         interfaces.iface[interfaces.count++] = iface;
674                 }
675         }
676
677         for (i = 0; i < interfaces.count; i++) {
678                 if (hostapd_driver_init(interfaces.iface[i]) ||
679                     hostapd_setup_interface(interfaces.iface[i]))
680                         goto out;
681         }
682
683         hostapd_global_ctrl_iface_init(&interfaces);
684
685         if (hostapd_global_run(&interfaces, daemonize, pid_file)) {
686                 wpa_printf(MSG_ERROR, "Failed to start eloop");
687                 goto out;
688         }
689
690         ret = 0;
691
692  out:
693         hostapd_global_ctrl_iface_deinit(&interfaces);
694         /* Deinitialize all interfaces */
695         for (i = 0; i < interfaces.count; i++)
696                 hostapd_interface_deinit_free(interfaces.iface[i]);
697         os_free(interfaces.iface);
698
699         hostapd_global_deinit(pid_file);
700         os_free(pid_file);
701
702         if (log_file)
703                 wpa_debug_close_file();
704         wpa_debug_close_linux_tracing();
705
706         os_free(bss_config);
707
708         os_program_deinit();
709
710         return ret;
711 }