3 * Copyright (c) 2002-2011, 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"
27 #include "config_file.h"
28 #include "eap_register.h"
29 #include "ctrl_iface.h"
37 static struct hapd_global global
;
40 #ifndef CONFIG_NO_HOSTAPD_LOGGER
41 static void hostapd_logger_cb(void *ctx
, const u8
*addr
, unsigned int module
,
42 int level
, const char *txt
, size_t len
)
44 struct hostapd_data
*hapd
= ctx
;
45 char *format
, *module_str
;
47 int conf_syslog_level
, conf_stdout_level
;
48 unsigned int conf_syslog
, conf_stdout
;
51 format
= os_malloc(maxlen
);
55 if (hapd
&& hapd
->conf
) {
56 conf_syslog_level
= hapd
->conf
->logger_syslog_level
;
57 conf_stdout_level
= hapd
->conf
->logger_stdout_level
;
58 conf_syslog
= hapd
->conf
->logger_syslog
;
59 conf_stdout
= hapd
->conf
->logger_stdout
;
61 conf_syslog_level
= conf_stdout_level
= 0;
62 conf_syslog
= conf_stdout
= (unsigned int) -1;
66 case HOSTAPD_MODULE_IEEE80211
:
67 module_str
= "IEEE 802.11";
69 case HOSTAPD_MODULE_IEEE8021X
:
70 module_str
= "IEEE 802.1X";
72 case HOSTAPD_MODULE_RADIUS
:
73 module_str
= "RADIUS";
75 case HOSTAPD_MODULE_WPA
:
78 case HOSTAPD_MODULE_DRIVER
:
79 module_str
= "DRIVER";
81 case HOSTAPD_MODULE_IAPP
:
84 case HOSTAPD_MODULE_MLME
:
92 if (hapd
&& hapd
->conf
&& addr
)
93 os_snprintf(format
, maxlen
, "%s: STA " MACSTR
"%s%s: %s",
94 hapd
->conf
->iface
, MAC2STR(addr
),
95 module_str
? " " : "", module_str
, txt
);
96 else if (hapd
&& hapd
->conf
)
97 os_snprintf(format
, maxlen
, "%s:%s%s %s",
98 hapd
->conf
->iface
, module_str
? " " : "",
101 os_snprintf(format
, maxlen
, "STA " MACSTR
"%s%s: %s",
102 MAC2STR(addr
), module_str
? " " : "",
105 os_snprintf(format
, maxlen
, "%s%s%s",
106 module_str
, module_str
? ": " : "", txt
);
108 if ((conf_stdout
& module
) && level
>= conf_stdout_level
) {
109 wpa_debug_print_timestamp();
110 wpa_printf(MSG_INFO
, "%s", format
);
113 #ifndef CONFIG_NATIVE_WINDOWS
114 if ((conf_syslog
& module
) && level
>= conf_syslog_level
) {
117 case HOSTAPD_LEVEL_DEBUG_VERBOSE
:
118 case HOSTAPD_LEVEL_DEBUG
:
119 priority
= LOG_DEBUG
;
121 case HOSTAPD_LEVEL_INFO
:
124 case HOSTAPD_LEVEL_NOTICE
:
125 priority
= LOG_NOTICE
;
127 case HOSTAPD_LEVEL_WARNING
:
128 priority
= LOG_WARNING
;
134 syslog(priority
, "%s", format
);
136 #endif /* CONFIG_NATIVE_WINDOWS */
140 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
144 * hostapd_driver_init - Preparate driver interface
146 static int hostapd_driver_init(struct hostapd_iface
*iface
)
148 struct wpa_init_params params
;
150 struct hostapd_data
*hapd
= iface
->bss
[0];
151 struct hostapd_bss_config
*conf
= hapd
->conf
;
153 struct wpa_driver_capa capa
;
155 if (hapd
->driver
== NULL
|| hapd
->driver
->hapd_init
== NULL
) {
156 wpa_printf(MSG_ERROR
, "No hostapd driver wrapper available");
160 /* Initialize the driver interface */
161 if (!(b
[0] | b
[1] | b
[2] | b
[3] | b
[4] | b
[5]))
164 os_memset(¶ms
, 0, sizeof(params
));
165 for (i
= 0; wpa_drivers
[i
]; i
++) {
166 if (wpa_drivers
[i
] != hapd
->driver
)
169 if (global
.drv_priv
[i
] == NULL
&&
170 wpa_drivers
[i
]->global_init
) {
171 global
.drv_priv
[i
] = wpa_drivers
[i
]->global_init();
172 if (global
.drv_priv
[i
] == NULL
) {
173 wpa_printf(MSG_ERROR
, "Failed to initialize "
175 wpa_drivers
[i
]->name
);
180 params
.global_priv
= global
.drv_priv
[i
];
184 params
.ifname
= hapd
->conf
->iface
;
185 params
.ssid
= hapd
->conf
->ssid
.ssid
;
186 params
.ssid_len
= hapd
->conf
->ssid
.ssid_len
;
187 params
.test_socket
= hapd
->conf
->test_socket
;
188 params
.use_pae_group_addr
= hapd
->conf
->use_pae_group_addr
;
190 params
.num_bridge
= hapd
->iface
->num_bss
;
191 params
.bridge
= os_calloc(hapd
->iface
->num_bss
, sizeof(char *));
192 if (params
.bridge
== NULL
)
194 for (i
= 0; i
< hapd
->iface
->num_bss
; i
++) {
195 struct hostapd_data
*bss
= hapd
->iface
->bss
[i
];
196 if (bss
->conf
->bridge
[0])
197 params
.bridge
[i
] = bss
->conf
->bridge
;
200 params
.own_addr
= hapd
->own_addr
;
202 hapd
->drv_priv
= hapd
->driver
->hapd_init(hapd
, ¶ms
);
203 os_free(params
.bridge
);
204 if (hapd
->drv_priv
== NULL
) {
205 wpa_printf(MSG_ERROR
, "%s driver initialization failed.",
211 if (hapd
->driver
->get_capa
&&
212 hapd
->driver
->get_capa(hapd
->drv_priv
, &capa
) == 0) {
213 iface
->drv_flags
= capa
.flags
;
214 iface
->probe_resp_offloads
= capa
.probe_resp_offloads
;
215 iface
->extended_capa
= capa
.extended_capa
;
216 iface
->extended_capa_mask
= capa
.extended_capa_mask
;
217 iface
->extended_capa_len
= capa
.extended_capa_len
;
218 iface
->drv_max_acl_mac_addrs
= capa
.max_acl_mac_addrs
;
226 * hostapd_interface_init - Read configuration file and init BSS data
228 * This function is used to parse configuration file for a full interface (one
229 * or more BSSes sharing the same radio) and allocate memory for the BSS
230 * interfaces. No actiual driver operations are started.
232 static struct hostapd_iface
*
233 hostapd_interface_init(struct hapd_interfaces
*interfaces
,
234 const char *config_fname
, int debug
)
236 struct hostapd_iface
*iface
;
239 wpa_printf(MSG_ERROR
, "Configuration file: %s", config_fname
);
240 iface
= hostapd_init(interfaces
, config_fname
);
243 iface
->interfaces
= interfaces
;
245 for (k
= 0; k
< debug
; k
++) {
246 if (iface
->bss
[0]->conf
->logger_stdout_level
> 0)
247 iface
->bss
[0]->conf
->logger_stdout_level
--;
250 if (iface
->conf
->bss
[0]->iface
[0] == '\0' &&
251 !hostapd_drv_none(iface
->bss
[0])) {
252 wpa_printf(MSG_ERROR
, "Interface name not specified in %s",
254 hostapd_interface_deinit_free(iface
);
263 * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
265 static void handle_term(int sig
, void *signal_ctx
)
267 wpa_printf(MSG_DEBUG
, "Signal %d received - terminating", sig
);
272 #ifndef CONFIG_NATIVE_WINDOWS
274 static int handle_reload_iface(struct hostapd_iface
*iface
, void *ctx
)
276 if (hostapd_reload_config(iface
) < 0) {
277 wpa_printf(MSG_WARNING
, "Failed to read new configuration "
278 "file - continuing with old.");
285 * handle_reload - SIGHUP handler to reload configuration
287 static void handle_reload(int sig
, void *signal_ctx
)
289 struct hapd_interfaces
*interfaces
= signal_ctx
;
290 wpa_printf(MSG_DEBUG
, "Signal %d received - reloading configuration",
292 hostapd_for_each_interface(interfaces
, handle_reload_iface
, NULL
);
296 static void handle_dump_state(int sig
, void *signal_ctx
)
298 /* Not used anymore - ignore signal */
300 #endif /* CONFIG_NATIVE_WINDOWS */
303 static int hostapd_global_init(struct hapd_interfaces
*interfaces
,
304 const char *entropy_file
)
308 os_memset(&global
, 0, sizeof(global
));
310 hostapd_logger_register_cb(hostapd_logger_cb
);
312 if (eap_server_register_methods()) {
313 wpa_printf(MSG_ERROR
, "Failed to register EAP methods");
318 wpa_printf(MSG_ERROR
, "Failed to initialize event loop");
322 random_init(entropy_file
);
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
);
330 #ifndef CONFIG_NATIVE_WINDOWS
331 openlog("hostapd", 0, LOG_DAEMON
);
332 #endif /* CONFIG_NATIVE_WINDOWS */
334 for (i
= 0; wpa_drivers
[i
]; i
++)
336 if (global
.drv_count
== 0) {
337 wpa_printf(MSG_ERROR
, "No drivers enabled");
340 global
.drv_priv
= os_calloc(global
.drv_count
, sizeof(void *));
341 if (global
.drv_priv
== NULL
)
348 static void hostapd_global_deinit(const char *pid_file
)
352 for (i
= 0; wpa_drivers
[i
] && global
.drv_priv
; i
++) {
353 if (!global
.drv_priv
[i
])
355 wpa_drivers
[i
]->global_deinit(global
.drv_priv
[i
]);
357 os_free(global
.drv_priv
);
358 global
.drv_priv
= NULL
;
360 #ifdef EAP_SERVER_TNC
361 tncs_global_deinit();
362 #endif /* EAP_SERVER_TNC */
368 #ifndef CONFIG_NATIVE_WINDOWS
370 #endif /* CONFIG_NATIVE_WINDOWS */
372 eap_server_unregister_methods();
374 os_daemonize_terminate(pid_file
);
378 static int hostapd_global_run(struct hapd_interfaces
*ifaces
, int daemonize
,
379 const char *pid_file
)
381 #ifdef EAP_SERVER_TNC
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
) {
394 if (tnc
&& tncs_global_init() < 0) {
395 wpa_printf(MSG_ERROR
, "Failed to initialize TNCS");
398 #endif /* EAP_SERVER_TNC */
400 if (daemonize
&& os_daemonize(pid_file
)) {
411 static void show_version(void)
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) 2002-2014, Jouni Malinen <j@w1.fi> "
418 "and contributors\n");
422 static void usage(void)
427 "usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
429 " [-g <global ctrl_iface>] [-G <group>] \\\n"
430 " <configuration file(s)>\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"
437 " -g global control interface path\n"
438 " -G group for control interfaces\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");
455 static const char * hostapd_msg_ifname_cb(void *ctx
)
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
;
465 static int hostapd_get_global_ctrl_iface(struct hapd_interfaces
*interfaces
,
469 os_free(interfaces
->global_iface_path
);
470 interfaces
->global_iface_path
= os_strdup(path
);
471 if (interfaces
->global_iface_path
== NULL
)
473 pos
= os_strrchr(interfaces
->global_iface_path
, '/');
475 wpa_printf(MSG_ERROR
, "No '/' in the global control interface "
477 os_free(interfaces
->global_iface_path
);
478 interfaces
->global_iface_path
= NULL
;
483 interfaces
->global_iface_name
= pos
+ 1;
489 static int hostapd_get_ctrl_iface_group(struct hapd_interfaces
*interfaces
,
492 #ifndef CONFIG_NATIVE_WINDOWS
494 grp
= getgrnam(group
);
496 wpa_printf(MSG_ERROR
, "Unknown group '%s'", group
);
499 interfaces
->ctrl_iface_group
= grp
->gr_gid
;
500 #endif /* CONFIG_NATIVE_WINDOWS */
506 static int gen_uuid(const char *txt_addr
)
512 if (hwaddr_aton(txt_addr
, addr
) < 0)
515 uuid_gen_mac_addr(addr
, uuid
);
516 if (uuid_bin2str(uuid
, buf
, sizeof(buf
)) < 0)
523 #endif /* CONFIG_WPS */
526 int main(int argc
, char *argv
[])
528 struct hapd_interfaces interfaces
;
531 int c
, debug
= 0, daemonize
= 0;
532 char *pid_file
= NULL
;
533 const char *log_file
= NULL
;
534 const char *entropy_file
= NULL
;
535 char **bss_config
= NULL
, **tmp_bss
;
536 size_t num_bss_configs
= 0;
537 #ifdef CONFIG_DEBUG_LINUX_TRACING
538 int enable_trace_dbg
= 0;
539 #endif /* CONFIG_DEBUG_LINUX_TRACING */
541 if (os_program_init())
544 os_memset(&interfaces
, 0, sizeof(interfaces
));
545 interfaces
.reload_config
= hostapd_reload_config
;
546 interfaces
.config_read_cb
= hostapd_config_read
;
547 interfaces
.for_each_interface
= hostapd_for_each_interface
;
548 interfaces
.ctrl_iface_init
= hostapd_ctrl_iface_init
;
549 interfaces
.ctrl_iface_deinit
= hostapd_ctrl_iface_deinit
;
550 interfaces
.driver_init
= hostapd_driver_init
;
551 interfaces
.global_iface_path
= NULL
;
552 interfaces
.global_iface_name
= NULL
;
553 interfaces
.global_ctrl_sock
= -1;
556 c
= getopt(argc
, argv
, "b:Bde:f:hKP:Ttu:vg:G:");
565 if (wpa_debug_level
> 0)
572 entropy_file
= optarg
;
578 wpa_debug_show_keys
++;
582 pid_file
= os_rel2abs_path(optarg
);
585 wpa_debug_timestamp
++;
587 #ifdef CONFIG_DEBUG_LINUX_TRACING
589 enable_trace_dbg
= 1;
591 #endif /* CONFIG_DEBUG_LINUX_TRACING */
597 if (hostapd_get_global_ctrl_iface(&interfaces
, optarg
))
601 if (hostapd_get_ctrl_iface_group(&interfaces
, optarg
))
605 tmp_bss
= os_realloc_array(bss_config
,
610 bss_config
= tmp_bss
;
611 bss_config
[num_bss_configs
++] = optarg
;
615 return gen_uuid(optarg
);
616 #endif /* CONFIG_WPS */
623 if (optind
== argc
&& interfaces
.global_iface_path
== NULL
&&
624 num_bss_configs
== 0)
627 wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb
);
630 wpa_debug_open_file(log_file
);
631 #ifdef CONFIG_DEBUG_LINUX_TRACING
632 if (enable_trace_dbg
) {
633 int tret
= wpa_debug_open_linux_tracing();
635 wpa_printf(MSG_ERROR
, "Failed to enable trace logging");
639 #endif /* CONFIG_DEBUG_LINUX_TRACING */
641 interfaces
.count
= argc
- optind
;
642 if (interfaces
.count
|| num_bss_configs
) {
643 interfaces
.iface
= os_calloc(interfaces
.count
+ num_bss_configs
,
644 sizeof(struct hostapd_iface
*));
645 if (interfaces
.iface
== NULL
) {
646 wpa_printf(MSG_ERROR
, "malloc failed");
651 if (hostapd_global_init(&interfaces
, entropy_file
)) {
652 wpa_printf(MSG_ERROR
, "Failed to initilize global context");
656 /* Allocate and parse configuration for full interface files */
657 for (i
= 0; i
< interfaces
.count
; i
++) {
658 interfaces
.iface
[i
] = hostapd_interface_init(&interfaces
,
661 if (!interfaces
.iface
[i
]) {
662 wpa_printf(MSG_ERROR
, "Failed to initialize interface");
667 /* Allocate and parse configuration for per-BSS files */
668 for (i
= 0; i
< num_bss_configs
; i
++) {
669 struct hostapd_iface
*iface
;
672 wpa_printf(MSG_INFO
, "BSS config: %s", bss_config
[i
]);
673 fname
= os_strchr(bss_config
[i
], ':');
675 wpa_printf(MSG_ERROR
,
676 "Invalid BSS config identifier '%s'",
681 iface
= hostapd_interface_init_bss(&interfaces
, bss_config
[i
],
685 for (j
= 0; j
< interfaces
.count
; j
++) {
686 if (interfaces
.iface
[j
] == iface
)
689 if (j
== interfaces
.count
) {
690 struct hostapd_iface
**tmp
;
691 tmp
= os_realloc_array(interfaces
.iface
,
692 interfaces
.count
+ 1,
693 sizeof(struct hostapd_iface
*));
695 hostapd_interface_deinit_free(iface
);
698 interfaces
.iface
= tmp
;
699 interfaces
.iface
[interfaces
.count
++] = iface
;
704 * Enable configured interfaces. Depending on channel configuration,
705 * this may complete full initialization before returning or use a
706 * callback mechanism to complete setup in case of operations like HT
707 * co-ex scans, ACS, or DFS are needed to determine channel parameters.
708 * In such case, the interface will be enabled from eloop context within
709 * hostapd_global_run().
711 interfaces
.terminate_on_error
= interfaces
.count
;
712 for (i
= 0; i
< interfaces
.count
; i
++) {
713 if (hostapd_driver_init(interfaces
.iface
[i
]) ||
714 hostapd_setup_interface(interfaces
.iface
[i
]))
718 hostapd_global_ctrl_iface_init(&interfaces
);
720 if (hostapd_global_run(&interfaces
, daemonize
, pid_file
)) {
721 wpa_printf(MSG_ERROR
, "Failed to start eloop");
728 hostapd_global_ctrl_iface_deinit(&interfaces
);
729 /* Deinitialize all interfaces */
730 for (i
= 0; i
< interfaces
.count
; i
++)
731 hostapd_interface_deinit_free(interfaces
.iface
[i
]);
732 os_free(interfaces
.iface
);
734 hostapd_global_deinit(pid_file
);
738 wpa_debug_close_file();
739 wpa_debug_close_linux_tracing();