1 /*
2  * hostapd / Configuration definitions and helpers functions
3  * Copyright (c) 2003-2012, 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 #ifndef HOSTAPD_CONFIG_H
10 #define HOSTAPD_CONFIG_H
11 
12 #include "common/defs.h"
13 #include "ip_addr.h"
14 #include "common/wpa_common.h"
15 #include "common/ieee802_11_common.h"
16 #include "wps/wps.h"
17 
18 #define MAX_STA_COUNT 2007
19 #define MAX_VLAN_ID 4094
20 
21 typedef u8 macaddr[ETH_ALEN];
22 
23 struct mac_acl_entry {
24 	macaddr addr;
25 	int vlan_id;
26 };
27 
28 struct hostapd_radius_servers;
29 struct ft_remote_r0kh;
30 struct ft_remote_r1kh;
31 
32 #define HOSTAPD_MAX_SSID_LEN 32
33 
34 #define NUM_WEP_KEYS 4
35 struct hostapd_wep_keys {
36 	u8 idx;
37 	u8 *key[NUM_WEP_KEYS];
38 	size_t len[NUM_WEP_KEYS];
39 	int keys_set;
40 	size_t default_len; /* key length used for dynamic key generation */
41 };
42 
43 typedef enum hostap_security_policy {
44 	SECURITY_PLAINTEXT = 0,
45 	SECURITY_STATIC_WEP = 1,
46 	SECURITY_IEEE_802_1X = 2,
47 	SECURITY_WPA_PSK = 3,
48 	SECURITY_WPA = 4
49 } secpolicy;
50 
51 struct hostapd_ssid {
52 	u8 ssid[HOSTAPD_MAX_SSID_LEN];
53 	size_t ssid_len;
54 	unsigned int ssid_set:1;
55 	unsigned int utf8_ssid:1;
56 	unsigned int wpa_passphrase_set:1;
57 	unsigned int wpa_psk_set:1;
58 
59 	char vlan[IFNAMSIZ + 1];
60 	secpolicy security_policy;
61 
62 	struct hostapd_wpa_psk *wpa_psk;
63 	char *wpa_passphrase;
64 	char *wpa_psk_file;
65 
66 	struct hostapd_wep_keys wep;
67 
68 #define DYNAMIC_VLAN_DISABLED 0
69 #define DYNAMIC_VLAN_OPTIONAL 1
70 #define DYNAMIC_VLAN_REQUIRED 2
71 	int dynamic_vlan;
72 #define DYNAMIC_VLAN_NAMING_WITHOUT_DEVICE 0
73 #define DYNAMIC_VLAN_NAMING_WITH_DEVICE 1
74 #define DYNAMIC_VLAN_NAMING_END 2
75 	int vlan_naming;
76 #ifdef CONFIG_FULL_DYNAMIC_VLAN
77 	char *vlan_tagged_interface;
78 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
79 };
80 
81 
82 #define VLAN_ID_WILDCARD -1
83 
84 struct hostapd_vlan {
85 	struct hostapd_vlan *next;
86 	int vlan_id; /* VLAN ID or -1 (VLAN_ID_WILDCARD) for wildcard entry */
87 	char ifname[IFNAMSIZ + 1];
88 	int dynamic_vlan;
89 #ifdef CONFIG_FULL_DYNAMIC_VLAN
90 
91 #define DVLAN_CLEAN_BR 	0x1
92 #define DVLAN_CLEAN_VLAN	0x2
93 #define DVLAN_CLEAN_VLAN_PORT	0x4
94 #define DVLAN_CLEAN_WLAN_PORT	0x8
95 	int clean;
96 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
97 };
98 
99 #define PMK_LEN 32
100 struct hostapd_sta_wpa_psk_short {
101 	struct hostapd_sta_wpa_psk_short *next;
102 	u8 psk[PMK_LEN];
103 };
104 
105 struct hostapd_wpa_psk {
106 	struct hostapd_wpa_psk *next;
107 	int group;
108 	u8 psk[PMK_LEN];
109 	u8 addr[ETH_ALEN];
110 	u8 p2p_dev_addr[ETH_ALEN];
111 };
112 
113 struct hostapd_eap_user {
114 	struct hostapd_eap_user *next;
115 	u8 *identity;
116 	size_t identity_len;
117 	struct {
118 		int vendor;
119 		u32 method;
120 	} methods[EAP_MAX_METHODS];
121 	u8 *password;
122 	size_t password_len;
123 	int phase2;
124 	int force_version;
125 	unsigned int wildcard_prefix:1;
126 	unsigned int password_hash:1; /* whether password is hashed with
127 				       * nt_password_hash() */
128 	int ttls_auth; /* EAP_TTLS_AUTH_* bitfield */
129 };
130 
131 struct hostapd_radius_attr {
132 	u8 type;
133 	struct wpabuf *val;
134 	struct hostapd_radius_attr *next;
135 };
136 
137 
138 #define NUM_TX_QUEUES 4
139 
140 struct hostapd_tx_queue_params {
141 	int aifs;
142 	int cwmin;
143 	int cwmax;
144 	int burst; /* maximum burst time in 0.1 ms, i.e., 10 = 1 ms */
145 };
146 
147 
148 #define MAX_ROAMING_CONSORTIUM_LEN 15
149 
150 struct hostapd_roaming_consortium {
151 	u8 len;
152 	u8 oi[MAX_ROAMING_CONSORTIUM_LEN];
153 };
154 
155 struct hostapd_lang_string {
156 	u8 lang[3];
157 	u8 name_len;
158 	u8 name[252];
159 };
160 
161 #define MAX_NAI_REALMS 10
162 #define MAX_NAI_REALMLEN 255
163 #define MAX_NAI_EAP_METHODS 5
164 #define MAX_NAI_AUTH_TYPES 4
165 struct hostapd_nai_realm_data {
166 	u8 encoding;
167 	char realm_buf[MAX_NAI_REALMLEN + 1];
168 	char *realm[MAX_NAI_REALMS];
169 	u8 eap_method_count;
170 	struct hostapd_nai_realm_eap {
171 		u8 eap_method;
172 		u8 num_auths;
173 		u8 auth_id[MAX_NAI_AUTH_TYPES];
174 		u8 auth_val[MAX_NAI_AUTH_TYPES];
175 	} eap_method[MAX_NAI_EAP_METHODS];
176 };
177 
178 /**
179  * struct hostapd_bss_config - Per-BSS configuration
180  */
181 struct hostapd_bss_config {
182 	char iface[IFNAMSIZ + 1];
183 	char bridge[IFNAMSIZ + 1];
184 	char vlan_bridge[IFNAMSIZ + 1];
185 	char wds_bridge[IFNAMSIZ + 1];
186 
187 	enum hostapd_logger_level logger_syslog_level, logger_stdout_level;
188 
189 	unsigned int logger_syslog; /* module bitfield */
190 	unsigned int logger_stdout; /* module bitfield */
191 
192 	int max_num_sta; /* maximum number of STAs in station table */
193 
194 	int dtim_period;
195 
196 	int ieee802_1x; /* use IEEE 802.1X */
197 	int eapol_version;
198 	int eap_server; /* Use internal EAP server instead of external
199 			 * RADIUS server */
200 	struct hostapd_eap_user *eap_user;
201 	char *eap_user_sqlite;
202 	char *eap_sim_db;
203 	struct hostapd_ip_addr own_ip_addr;
204 	char *nas_identifier;
205 	struct hostapd_radius_servers *radius;
206 	int acct_interim_interval;
207 	int radius_request_cui;
208 	struct hostapd_radius_attr *radius_auth_req_attr;
209 	struct hostapd_radius_attr *radius_acct_req_attr;
210 	int radius_das_port;
211 	unsigned int radius_das_time_window;
212 	int radius_das_require_event_timestamp;
213 	struct hostapd_ip_addr radius_das_client_addr;
214 	u8 *radius_das_shared_secret;
215 	size_t radius_das_shared_secret_len;
216 
217 	struct hostapd_ssid ssid;
218 
219 	char *eap_req_id_text; /* optional displayable message sent with
220 				* EAP Request-Identity */
221 	size_t eap_req_id_text_len;
222 	int eapol_key_index_workaround;
223 
224 	size_t default_wep_key_len;
225 	int individual_wep_key_len;
226 	int wep_rekeying_period;
227 	int broadcast_key_idx_min, broadcast_key_idx_max;
228 	int eap_reauth_period;
229 
230 	int ieee802_11f; /* use IEEE 802.11f (IAPP) */
231 	char iapp_iface[IFNAMSIZ + 1]; /* interface used with IAPP broadcast
232 					* frames */
233 
234 	enum {
235 		ACCEPT_UNLESS_DENIED = 0,
236 		DENY_UNLESS_ACCEPTED = 1,
237 		USE_EXTERNAL_RADIUS_AUTH = 2
238 	} macaddr_acl;
239 	struct mac_acl_entry *accept_mac;
240 	int num_accept_mac;
241 	struct mac_acl_entry *deny_mac;
242 	int num_deny_mac;
243 	int wds_sta;
244 	int isolate;
245 	int start_disabled;
246 
247 	int auth_algs; /* bitfield of allowed IEEE 802.11 authentication
248 			* algorithms, WPA_AUTH_ALG_{OPEN,SHARED,LEAP} */
249 
250 	int wpa; /* bitfield of WPA_PROTO_WPA, WPA_PROTO_RSN */
251 	int wpa_key_mgmt;
252 #ifdef CONFIG_IEEE80211W
253 	enum mfp_options ieee80211w;
254 	/* dot11AssociationSAQueryMaximumTimeout (in TUs) */
255 	unsigned int assoc_sa_query_max_timeout;
256 	/* dot11AssociationSAQueryRetryTimeout (in TUs) */
257 	int assoc_sa_query_retry_timeout;
258 #endif /* CONFIG_IEEE80211W */
259 	enum {
260 		PSK_RADIUS_IGNORED = 0,
261 		PSK_RADIUS_ACCEPTED = 1,
262 		PSK_RADIUS_REQUIRED = 2
263 	} wpa_psk_radius;
264 	int wpa_pairwise;
265 	int wpa_group;
266 	int wpa_group_rekey;
267 	int wpa_strict_rekey;
268 	int wpa_gmk_rekey;
269 	int wpa_ptk_rekey;
270 	int rsn_pairwise;
271 	int rsn_preauth;
272 	char *rsn_preauth_interfaces;
273 	int peerkey;
274 
275 #ifdef CONFIG_IEEE80211R
276 	/* IEEE 802.11r - Fast BSS Transition */
277 	u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
278 	u8 r1_key_holder[FT_R1KH_ID_LEN];
279 	u32 r0_key_lifetime;
280 	u32 reassociation_deadline;
281 	struct ft_remote_r0kh *r0kh_list;
282 	struct ft_remote_r1kh *r1kh_list;
283 	int pmk_r1_push;
284 	int ft_over_ds;
285 #endif /* CONFIG_IEEE80211R */
286 
287 	char *ctrl_interface; /* directory for UNIX domain sockets */
288 #ifndef CONFIG_NATIVE_WINDOWS
289 	gid_t ctrl_interface_gid;
290 #endif /* CONFIG_NATIVE_WINDOWS */
291 	int ctrl_interface_gid_set;
292 
293 	char *ca_cert;
294 	char *server_cert;
295 	char *private_key;
296 	char *private_key_passwd;
297 	int check_crl;
298 	char *ocsp_stapling_response;
299 	char *dh_file;
300 	u8 *pac_opaque_encr_key;
301 	u8 *eap_fast_a_id;
302 	size_t eap_fast_a_id_len;
303 	char *eap_fast_a_id_info;
304 	int eap_fast_prov;
305 	int pac_key_lifetime;
306 	int pac_key_refresh_time;
307 	int eap_sim_aka_result_ind;
308 	int tnc;
309 	int fragment_size;
310 	u16 pwd_group;
311 
312 	char *radius_server_clients;
313 	int radius_server_auth_port;
314 	int radius_server_ipv6;
315 
316 	char *test_socket; /* UNIX domain socket path for driver_test */
317 
318 	int use_pae_group_addr; /* Whether to send EAPOL frames to PAE group
319 				 * address instead of individual address
320 				 * (for driver_wired.c).
321 				 */
322 
323 	int ap_max_inactivity;
324 	int ignore_broadcast_ssid;
325 
326 	int wmm_enabled;
327 	int wmm_uapsd;
328 
329 	struct hostapd_vlan *vlan;
330 
331 	macaddr bssid;
332 
333 	/*
334 	 * Maximum listen interval that STAs can use when associating with this
335 	 * BSS. If a STA tries to use larger value, the association will be
336 	 * denied with status code 51.
337 	 */
338 	u16 max_listen_interval;
339 
340 	int disable_pmksa_caching;
341 	int okc; /* Opportunistic Key Caching */
342 
343 	int wps_state;
344 #ifdef CONFIG_WPS
345 	int wps_independent;
346 	int ap_setup_locked;
347 	u8 uuid[16];
348 	char *wps_pin_requests;
349 	char *device_name;
350 	char *manufacturer;
351 	char *model_name;
352 	char *model_number;
353 	char *serial_number;
354 	u8 device_type[WPS_DEV_TYPE_LEN];
355 	char *config_methods;
356 	u8 os_version[4];
357 	char *ap_pin;
358 	int skip_cred_build;
359 	u8 *extra_cred;
360 	size_t extra_cred_len;
361 	int wps_cred_processing;
362 	int force_per_enrollee_psk;
363 	u8 *ap_settings;
364 	size_t ap_settings_len;
365 	char *upnp_iface;
366 	char *friendly_name;
367 	char *manufacturer_url;
368 	char *model_description;
369 	char *model_url;
370 	char *upc;
371 	struct wpabuf *wps_vendor_ext[MAX_WPS_VENDOR_EXTENSIONS];
372 	int wps_nfc_pw_from_config;
373 	int wps_nfc_dev_pw_id;
374 	struct wpabuf *wps_nfc_dh_pubkey;
375 	struct wpabuf *wps_nfc_dh_privkey;
376 	struct wpabuf *wps_nfc_dev_pw;
377 #endif /* CONFIG_WPS */
378 	int pbc_in_m1;
379 	char *server_id;
380 
381 #define P2P_ENABLED BIT(0)
382 #define P2P_GROUP_OWNER BIT(1)
383 #define P2P_GROUP_FORMATION BIT(2)
384 #define P2P_MANAGE BIT(3)
385 #define P2P_ALLOW_CROSS_CONNECTION BIT(4)
386 	int p2p;
387 #ifdef CONFIG_P2P
388 	u8 ip_addr_go[4];
389 	u8 ip_addr_mask[4];
390 	u8 ip_addr_start[4];
391 	u8 ip_addr_end[4];
392 #endif /* CONFIG_P2P */
393 
394 	int disassoc_low_ack;
395 	int skip_inactivity_poll;
396 
397 #define TDLS_PROHIBIT BIT(0)
398 #define TDLS_PROHIBIT_CHAN_SWITCH BIT(1)
399 	int tdls;
400 	int disable_11n;
401 	int disable_11ac;
402 
403 	/* IEEE 802.11v */
404 	int time_advertisement;
405 	char *time_zone;
406 	int wnm_sleep_mode;
407 	int bss_transition;
408 
409 	/* IEEE 802.11u - Interworking */
410 	int interworking;
411 	int access_network_type;
412 	int internet;
413 	int asra;
414 	int esr;
415 	int uesa;
416 	int venue_info_set;
417 	u8 venue_group;
418 	u8 venue_type;
419 	u8 hessid[ETH_ALEN];
420 
421 	/* IEEE 802.11u - Roaming Consortium list */
422 	unsigned int roaming_consortium_count;
423 	struct hostapd_roaming_consortium *roaming_consortium;
424 
425 	/* IEEE 802.11u - Venue Name duples */
426 	unsigned int venue_name_count;
427 	struct hostapd_lang_string *venue_name;
428 
429 	/* IEEE 802.11u - Network Authentication Type */
430 	u8 *network_auth_type;
431 	size_t network_auth_type_len;
432 
433 	/* IEEE 802.11u - IP Address Type Availability */
434 	u8 ipaddr_type_availability;
435 	u8 ipaddr_type_configured;
436 
437 	/* IEEE 802.11u - 3GPP Cellular Network */
438 	u8 *anqp_3gpp_cell_net;
439 	size_t anqp_3gpp_cell_net_len;
440 
441 	/* IEEE 802.11u - Domain Name */
442 	u8 *domain_name;
443 	size_t domain_name_len;
444 
445 	unsigned int nai_realm_count;
446 	struct hostapd_nai_realm_data *nai_realm_data;
447 
448 	u16 gas_comeback_delay;
449 	int gas_frag_limit;
450 
451 	u8 qos_map_set[16 + 2 * 21];
452 	unsigned int qos_map_set_len;
453 
454 #ifdef CONFIG_HS20
455 	int hs20;
456 	int disable_dgaf;
457 	unsigned int hs20_oper_friendly_name_count;
458 	struct hostapd_lang_string *hs20_oper_friendly_name;
459 	u8 *hs20_wan_metrics;
460 	u8 *hs20_connection_capability;
461 	size_t hs20_connection_capability_len;
462 	u8 *hs20_operating_class;
463 	u8 hs20_operating_class_len;
464 #endif /* CONFIG_HS20 */
465 
466 	u8 wps_rf_bands; /* RF bands for WPS (WPS_RF_*) */
467 
468 #ifdef CONFIG_RADIUS_TEST
469 	char *dump_msk_file;
470 #endif /* CONFIG_RADIUS_TEST */
471 
472 	struct wpabuf *vendor_elements;
473 
474 	unsigned int sae_anti_clogging_threshold;
475 	int *sae_groups;
476 
477 #ifdef CONFIG_TESTING_OPTIONS
478 	u8 bss_load_test[5];
479 	u8 bss_load_test_set;
480 #endif /* CONFIG_TESTING_OPTIONS */
481 };
482 
483 
484 /**
485  * struct hostapd_config - Per-radio interface configuration
486  */
487 struct hostapd_config {
488 	struct hostapd_bss_config **bss, *last_bss;
489 	size_t num_bss;
490 
491 	u16 beacon_int;
492 	int rts_threshold;
493 	int fragm_threshold;
494 	u8 send_probe_response;
495 	u8 channel;
496 	enum hostapd_hw_mode hw_mode; /* HOSTAPD_MODE_IEEE80211A, .. */
497 	enum {
498 		LONG_PREAMBLE = 0,
499 		SHORT_PREAMBLE = 1
500 	} preamble;
501 
502 	int *supported_rates;
503 	int *basic_rates;
504 
505 	const struct wpa_driver_ops *driver;
506 
507 	int ap_table_max_size;
508 	int ap_table_expiration_time;
509 
510 	char country[3]; /* first two octets: country code as described in
511 			  * ISO/IEC 3166-1. Third octet:
512 			  * ' ' (ascii 32): all environments
513 			  * 'O': Outdoor environemnt only
514 			  * 'I': Indoor environment only
515 			  */
516 
517 	int ieee80211d;
518 
519 	int ieee80211h; /* DFS */
520 
521 	struct hostapd_tx_queue_params tx_queue[NUM_TX_QUEUES];
522 
523 	/*
524 	 * WMM AC parameters, in same order as 802.1D, i.e.
525 	 * 0 = BE (best effort)
526 	 * 1 = BK (background)
527 	 * 2 = VI (video)
528 	 * 3 = VO (voice)
529 	 */
530 	struct hostapd_wmm_ac_params wmm_ac_params[4];
531 
532 	int ht_op_mode_fixed;
533 	u16 ht_capab;
534 	int ieee80211n;
535 	int secondary_channel;
536 	int require_ht;
537 	int obss_interval;
538 	u32 vht_capab;
539 	int ieee80211ac;
540 	int require_vht;
541 	u8 vht_oper_chwidth;
542 	u8 vht_oper_centr_freq_seg0_idx;
543 	u8 vht_oper_centr_freq_seg1_idx;
544 
545 #ifdef CONFIG_TESTING_OPTIONS
546 	double ignore_probe_probability;
547 	double ignore_auth_probability;
548 	double ignore_assoc_probability;
549 	double ignore_reassoc_probability;
550 	double corrupt_gtk_rekey_mic_probability;
551 #endif /* CONFIG_TESTING_OPTIONS */
552 
553 #ifdef CONFIG_ACS
554 	unsigned int acs_num_scans;
555 #endif /* CONFIG_ACS */
556 };
557 
558 
559 int hostapd_mac_comp(const void *a, const void *b);
560 int hostapd_mac_comp_empty(const void *a);
561 struct hostapd_config * hostapd_config_defaults(void);
562 void hostapd_config_defaults_bss(struct hostapd_bss_config *bss);
563 void hostapd_config_free_bss(struct hostapd_bss_config *conf);
564 void hostapd_config_free(struct hostapd_config *conf);
565 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
566 			  const u8 *addr, int *vlan_id);
567 int hostapd_rate_found(int *list, int rate);
568 int hostapd_wep_key_cmp(struct hostapd_wep_keys *a,
569 			struct hostapd_wep_keys *b);
570 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
571 			   const u8 *addr, const u8 *p2p_dev_addr,
572 			   const u8 *prev_psk);
573 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf);
574 int hostapd_vlan_id_valid(struct hostapd_vlan *vlan, int vlan_id);
575 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan,
576 					int vlan_id);
577 struct hostapd_radius_attr *
578 hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type);
579 int hostapd_config_check(struct hostapd_config *conf, int full_config);
580 void hostapd_set_security_params(struct hostapd_bss_config *bss);
581 
582 #endif /* HOSTAPD_CONFIG_H */
583