[thirdparty/hostap.git] / src / ap / hostapd.h

/*
 * hostapd / Initialization and configuration
 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#ifndef HOSTAPD_H
#define HOSTAPD_H

#include "common/defs.h"

struct wpa_driver_ops;
struct wpa_ctrl_dst;
struct radius_server_data;
struct upnp_wps_device_sm;
struct hapd_interfaces;
struct hostapd_data;
struct sta_info;
struct hostap_sta_driver_data;
struct ieee80211_ht_capabilities;
struct full_dynamic_vlan;

struct hostapd_probereq_cb {
	int (*cb)(void *ctx, const u8 *sa, const u8 *ie, size_t ie_len);
	void *ctx;
};

#define HOSTAPD_RATE_BASIC 0x00000001

struct hostapd_rate_data {
	int rate; /* rate in 100 kbps */
	int flags; /* HOSTAPD_RATE_ flags */
};

struct hostapd_frame_info {
	u32 channel;
	u32 datarate;
	u32 ssi_signal;
};


struct hostapd_driver_ops {
	int (*set_ap_wps_ie)(struct hostapd_data *hapd,
			     const struct wpabuf *beacon,
			     const struct wpabuf *probe);
	int (*send_mgmt_frame)(struct hostapd_data *hapd, const void *msg,
			       size_t len);
	int (*send_eapol)(struct hostapd_data *hapd, const u8 *addr,
			  const u8 *data, size_t data_len, int encrypt);
	int (*set_authorized)(struct hostapd_data *hapd, struct sta_info *sta,
			      int authorized);
	int (*set_key)(const char *ifname, struct hostapd_data *hapd,
		       enum wpa_alg alg, const u8 *addr, int key_idx,
		       int set_tx, const u8 *seq, size_t seq_len,
		       const u8 *key, size_t key_len);
	int (*read_sta_data)(struct hostapd_data *hapd,
			     struct hostap_sta_driver_data *data,
			     const u8 *addr);
	int (*sta_clear_stats)(struct hostapd_data *hapd, const u8 *addr);
	int (*set_sta_flags)(struct hostapd_data *hapd, struct sta_info *sta);
	int (*set_drv_ieee8021x)(struct hostapd_data *hapd, const char *ifname,
				 int enabled);
	int (*set_radius_acl_auth)(struct hostapd_data *hapd,
				   const u8 *mac, int accepted,
				   u32 session_timeout);
	int (*set_radius_acl_expire)(struct hostapd_data *hapd,
				     const u8 *mac);
	int (*set_bss_params)(struct hostapd_data *hapd, int use_protection);
	int (*set_beacon)(const char *ifname, struct hostapd_data *hapd,
			  const u8 *head, size_t head_len,
			  const u8 *tail, size_t tail_len, int dtim_period,
			  int beacon_int);
	int (*vlan_if_add)(struct hostapd_data *hapd, const char *ifname);
	int (*vlan_if_remove)(struct hostapd_data *hapd, const char *ifname);
	int (*set_wds_sta)(struct hostapd_data *hapd, const u8 *addr, int aid,
			   int val);
	int (*set_sta_vlan)(const char *ifname, struct hostapd_data *hapd,
			    const u8 *addr, int vlan_id);
	int (*get_inact_sec)(struct hostapd_data *hapd, const u8 *addr);
	int (*sta_deauth)(struct hostapd_data *hapd, const u8 *addr,
			  int reason);
	int (*sta_disassoc)(struct hostapd_data *hapd, const u8 *addr,
			    int reason);
	int (*sta_add)(const char *ifname, struct hostapd_data *hapd,
		       const u8 *addr, u16 aid, u16 capability,
		       const u8 *supp_rates, size_t supp_rates_len,
		       u16 listen_interval,
		       const struct ieee80211_ht_capabilities *ht_capab);
	int (*sta_remove)(struct hostapd_data *hapd, const u8 *addr);
	int (*set_countermeasures)(struct hostapd_data *hapd, int enabled);
};

/**
 * struct hostapd_data - hostapd per-BSS data structure
 */
struct hostapd_data {
	struct hostapd_iface *iface;
	struct hostapd_config *iconf;
	struct hostapd_bss_config *conf;
	int interface_added; /* virtual interface added for this BSS */

	u8 own_addr[ETH_ALEN];

	int num_sta; /* number of entries in sta_list */
	struct sta_info *sta_list; /* STA info list head */
#define STA_HASH_SIZE 256
#define STA_HASH(sta) (sta[5])
	struct sta_info *sta_hash[STA_HASH_SIZE];

	/*
	 * Bitfield for indicating which AIDs are allocated. Only AID values
	 * 1-2007 are used and as such, the bit at index 0 corresponds to AID
	 * 1.
	 */
#define AID_WORDS ((2008 + 31) / 32)
	u32 sta_aid[AID_WORDS];

	const struct wpa_driver_ops *driver;
	void *drv_priv;
	struct hostapd_driver_ops drv;

	void (*new_assoc_sta_cb)(struct hostapd_data *hapd,
				 struct sta_info *sta, int reassoc);

	void *msg_ctx; /* ctx for wpa_msg() calls */

	struct radius_client_data *radius;
	u32 acct_session_id_hi, acct_session_id_lo;

	struct iapp_data *iapp;

	struct hostapd_cached_radius_acl *acl_cache;
	struct hostapd_acl_query_data *acl_queries;

	struct wpa_authenticator *wpa_auth;
	struct eapol_authenticator *eapol_auth;

	struct rsn_preauth_interface *preauth_iface;
	time_t michael_mic_failure;
	int michael_mic_failures;
	int tkip_countermeasures;

	int ctrl_sock;
	struct wpa_ctrl_dst *ctrl_dst;

	void *ssl_ctx;
	void *eap_sim_db_priv;
	struct radius_server_data *radius_srv;

	int parameter_set_count;

#ifdef CONFIG_FULL_DYNAMIC_VLAN
	struct full_dynamic_vlan *full_dynamic_vlan;
#endif /* CONFIG_FULL_DYNAMIC_VLAN */

	struct l2_packet_data *l2;
	struct wps_context *wps;

#ifdef CONFIG_WPS
	struct wpabuf *wps_beacon_ie;
	struct wpabuf *wps_probe_resp_ie;
	unsigned int ap_pin_failures;
	struct upnp_wps_device_sm *wps_upnp;
#endif /* CONFIG_WPS */

	struct hostapd_probereq_cb *probereq_cb;
	size_t num_probereq_cb;
};


/**
 * struct hostapd_iface - hostapd per-interface data structure
 */
struct hostapd_iface {
	struct hapd_interfaces *interfaces;
	void *owner;
	int (*reload_config)(struct hostapd_iface *iface);
	struct hostapd_config * (*config_read_cb)(const char *config_fname);
	char *config_fname;
	struct hostapd_config *conf;

	size_t num_bss;
	struct hostapd_data **bss;

	int num_ap; /* number of entries in ap_list */
	struct ap_info *ap_list; /* AP info list head */
	struct ap_info *ap_hash[STA_HASH_SIZE];
	struct ap_info *ap_iter_list;

	struct hostapd_hw_modes *hw_features;
	int num_hw_features;
	struct hostapd_hw_modes *current_mode;
	/* Rates that are currently used (i.e., filtered copy of
	 * current_mode->channels */
	int num_rates;
	struct hostapd_rate_data *current_rates;

	u16 hw_flags;

	/* Number of associated Non-ERP stations (i.e., stations using 802.11b
	 * in 802.11g BSS) */
	int num_sta_non_erp;

	/* Number of associated stations that do not support Short Slot Time */
	int num_sta_no_short_slot_time;

	/* Number of associated stations that do not support Short Preamble */
	int num_sta_no_short_preamble;

	int olbc; /* Overlapping Legacy BSS Condition */

	/* Number of HT associated stations that do not support greenfield */
	int num_sta_ht_no_gf;

	/* Number of associated non-HT stations */
	int num_sta_no_ht;

	/* Number of HT associated stations 20 MHz */
	int num_sta_ht_20mhz;

	/* Overlapping BSS information */
	int olbc_ht;

	u16 ht_op_mode;
	void (*scan_cb)(struct hostapd_iface *iface);

	int (*ctrl_iface_init)(struct hostapd_data *hapd);
	void (*ctrl_iface_deinit)(struct hostapd_data *hapd);

	int (*for_each_interface)(struct hapd_interfaces *interfaces,
				  int (*cb)(struct hostapd_iface *iface,
					    void *ctx), void *ctx);
};

/* hostapd.c */
int hostapd_reload_config(struct hostapd_iface *iface);
struct hostapd_data *
hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
		       struct hostapd_config *conf,
		       struct hostapd_bss_config *bss);
int hostapd_setup_interface(struct hostapd_iface *iface);
int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
void hostapd_interface_deinit(struct hostapd_iface *iface);
void hostapd_interface_free(struct hostapd_iface *iface);
void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
			   int reassoc);

/* utils.c */
int hostapd_register_probereq_cb(struct hostapd_data *hapd,
				 int (*cb)(void *ctx, const u8 *sa,
					   const u8 *ie, size_t ie_len),
				 void *ctx);
void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr);

/* drv_callbacks.c (TODO: move to somewhere else?) */
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
			const u8 *ie, size_t ielen);
void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr);

#endif /* HOSTAPD_H */
Commit	Line	Data
6fc6879b JM	1	/*
6fc6879b JM	2	* hostapd / Initialization and configuration
45cefa0b	3	* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
6fc6879b JM	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*
	9	* Alternatively, this software may be distributed under the terms of BSD
	10	* license.
	11	*
	12	* See README and COPYING for more details.
	13	*/
	14
	15	#ifndef HOSTAPD_H
	16	#define HOSTAPD_H
	17
45cefa0b JM	18	#include "common/defs.h"
45cefa0b JM	19
c5121837	20	struct wpa_driver_ops;
6fc6879b JM	21	struct wpa_ctrl_dst;
6fc6879b JM	22	struct radius_server_data;
f620268f	23	struct upnp_wps_device_sm;
9969e5a4	24	struct hapd_interfaces;
bf65bc63	25	struct hostapd_data;
45cefa0b	26	struct sta_info;
a3d4fafa	27	struct hostap_sta_driver_data;
2ce86d9d	28	struct ieee80211_ht_capabilities;
6fc6879b	29	struct full_dynamic_vlan;
6fc6879b	30
fa16028d	31	struct hostapd_probereq_cb {
cd7d80f3	32	int (cb)(void ctx, const u8 sa, const u8 ie, size_t ie_len);
fa16028d JM	33	void *ctx;
	34	};
	35
fb7842aa JM	36	#define HOSTAPD_RATE_BASIC 0x00000001
	37
	38	struct hostapd_rate_data {
	39	int rate; /* rate in 100 kbps */
	40	int flags; /* HOSTAPD_RATE_ flags */
	41	};
	42
2a8b7416 JM	43	struct hostapd_frame_info {
	44	u32 channel;
	45	u32 datarate;
	46	u32 ssi_signal;
	47	};
	48
fb7842aa	49
bf65bc63 JM	50	struct hostapd_driver_ops {
bf65bc63 JM	51	int (set_ap_wps_ie)(struct hostapd_data hapd,
14f79386 JM	52	const struct wpabuf *beacon,
14f79386 JM	53	const struct wpabuf *probe);
c90933d2 JM	54	int (send_mgmt_frame)(struct hostapd_data hapd, const void *msg,
c90933d2 JM	55	size_t len);
45cefa0b JM	56	int (send_eapol)(struct hostapd_data hapd, const u8 *addr,
	57	const u8 *data, size_t data_len, int encrypt);
	58	int (set_authorized)(struct hostapd_data hapd, struct sta_info *sta,
	59	int authorized);
	60	int (set_key)(const char ifname, struct hostapd_data *hapd,
71934751	61	enum wpa_alg alg, const u8 *addr, int key_idx,
45cefa0b JM	62	int set_tx, const u8 *seq, size_t seq_len,
45cefa0b JM	63	const u8 *key, size_t key_len);
a3d4fafa JM	64	int (read_sta_data)(struct hostapd_data hapd,
	65	struct hostap_sta_driver_data *data,
	66	const u8 *addr);
	67	int (sta_clear_stats)(struct hostapd_data hapd, const u8 *addr);
4c2ddda4	68	int (set_sta_flags)(struct hostapd_data hapd, struct sta_info *sta);
010401fe JM	69	int (set_drv_ieee8021x)(struct hostapd_data hapd, const char *ifname,
010401fe JM	70	int enabled);
2f3e0bd4 JM	71	int (set_radius_acl_auth)(struct hostapd_data hapd,
	72	const u8 *mac, int accepted,
	73	u32 session_timeout);
	74	int (set_radius_acl_expire)(struct hostapd_data hapd,
	75	const u8 *mac);
677449b9 JM	76	int (set_bss_params)(struct hostapd_data hapd, int use_protection);
	77	int (set_beacon)(const char ifname, struct hostapd_data *hapd,
	78	const u8 *head, size_t head_len,
	79	const u8 *tail, size_t tail_len, int dtim_period,
	80	int beacon_int);
36592d31 JM	81	int (vlan_if_add)(struct hostapd_data hapd, const char *ifname);
36592d31 JM	82	int (vlan_if_remove)(struct hostapd_data hapd, const char *ifname);
bdee6fce JM	83	int (set_wds_sta)(struct hostapd_data hapd, const u8 *addr, int aid,
	84	int val);
	85	int (set_sta_vlan)(const char ifname, struct hostapd_data *hapd,
	86	const u8 *addr, int vlan_id);
	87	int (get_inact_sec)(struct hostapd_data hapd, const u8 *addr);
	88	int (sta_deauth)(struct hostapd_data hapd, const u8 *addr,
	89	int reason);
	90	int (sta_disassoc)(struct hostapd_data hapd, const u8 *addr,
	91	int reason);
2ce86d9d JM	92	int (sta_add)(const char ifname, struct hostapd_data *hapd,
	93	const u8 *addr, u16 aid, u16 capability,
	94	const u8 *supp_rates, size_t supp_rates_len,
	95	u16 listen_interval,
	96	const struct ieee80211_ht_capabilities *ht_capab);
bdee6fce	97	int (sta_remove)(struct hostapd_data hapd, const u8 *addr);
6d1278e9	98	int (set_countermeasures)(struct hostapd_data hapd, int enabled);
bf65bc63 JM	99	};
bf65bc63 JM	100
6fc6879b JM	101	/**
	102	* struct hostapd_data - hostapd per-BSS data structure
	103	*/
	104	struct hostapd_data {
	105	struct hostapd_iface *iface;
	106	struct hostapd_config *iconf;
	107	struct hostapd_bss_config *conf;
	108	int interface_added; /* virtual interface added for this BSS */
	109
	110	u8 own_addr[ETH_ALEN];
	111
	112	int num_sta; /* number of entries in sta_list */
	113	struct sta_info sta_list; / STA info list head */
2991469c JM	114	#define STA_HASH_SIZE 256
2991469c JM	115	#define STA_HASH(sta) (sta[5])
6fc6879b JM	116	struct sta_info *sta_hash[STA_HASH_SIZE];
6fc6879b JM	117
2991469c JM	118	/*
	119	* Bitfield for indicating which AIDs are allocated. Only AID values
	120	* 1-2007 are used and as such, the bit at index 0 corresponds to AID
	121	* 1.
6fc6879b	122	*/
2991469c JM	123	#define AID_WORDS ((2008 + 31) / 32)
2991469c JM	124	u32 sta_aid[AID_WORDS];
6fc6879b	125
c5121837	126	const struct wpa_driver_ops *driver;
6fc6879b	127	void *drv_priv;
bf65bc63	128	struct hostapd_driver_ops drv;
6fc6879b	129
d24df7c3 JM	130	void (new_assoc_sta_cb)(struct hostapd_data hapd,
	131	struct sta_info *sta, int reassoc);
	132
4f760fcc JM	133	void msg_ctx; / ctx for wpa_msg() calls */
4f760fcc JM	134
6fc6879b	135	struct radius_client_data *radius;
6fc6879b JM	136	u32 acct_session_id_hi, acct_session_id_lo;
	137
	138	struct iapp_data *iapp;
	139
6fc6879b JM	140	struct hostapd_cached_radius_acl *acl_cache;
	141	struct hostapd_acl_query_data *acl_queries;
	142
	143	struct wpa_authenticator *wpa_auth;
	144	struct eapol_authenticator *eapol_auth;
	145
	146	struct rsn_preauth_interface *preauth_iface;
	147	time_t michael_mic_failure;
	148	int michael_mic_failures;
	149	int tkip_countermeasures;
	150
	151	int ctrl_sock;
	152	struct wpa_ctrl_dst *ctrl_dst;
	153
	154	void *ssl_ctx;
	155	void *eap_sim_db_priv;
	156	struct radius_server_data *radius_srv;
	157
	158	int parameter_set_count;
	159
	160	#ifdef CONFIG_FULL_DYNAMIC_VLAN
	161	struct full_dynamic_vlan *full_dynamic_vlan;
	162	#endif /* CONFIG_FULL_DYNAMIC_VLAN */
	163
	164	struct l2_packet_data *l2;
ad08c363 JM	165	struct wps_context *wps;
	166
	167	#ifdef CONFIG_WPS
14f79386 JM	168	struct wpabuf *wps_beacon_ie;
14f79386 JM	169	struct wpabuf *wps_probe_resp_ie;
3b2cf800	170	unsigned int ap_pin_failures;
f620268f	171	struct upnp_wps_device_sm *wps_upnp;
ad08c363	172	#endif /* CONFIG_WPS */
fa16028d JM	173
	174	struct hostapd_probereq_cb *probereq_cb;
	175	size_t num_probereq_cb;
6fc6879b JM	176	};
	177
	178
6fc6879b JM	179	/**
	180	* struct hostapd_iface - hostapd per-interface data structure
	181	*/
	182	struct hostapd_iface {
9969e5a4	183	struct hapd_interfaces *interfaces;
0f2b2c19	184	void *owner;
32da61d9	185	int (reload_config)(struct hostapd_iface iface);
41d719d6	186	struct hostapd_config * (config_read_cb)(const char config_fname);
6fc6879b JM	187	char *config_fname;
	188	struct hostapd_config *conf;
	189
6fc6879b JM	190	size_t num_bss;
	191	struct hostapd_data **bss;
	192
	193	int num_ap; /* number of entries in ap_list */
	194	struct ap_info ap_list; / AP info list head */
	195	struct ap_info *ap_hash[STA_HASH_SIZE];
	196	struct ap_info *ap_iter_list;
	197
	198	struct hostapd_hw_modes *hw_features;
	199	int num_hw_features;
	200	struct hostapd_hw_modes *current_mode;
	201	/* Rates that are currently used (i.e., filtered copy of
	202	* current_mode->channels */
	203	int num_rates;
	204	struct hostapd_rate_data *current_rates;
6fc6879b JM	205
	206	u16 hw_flags;
	207
	208	/* Number of associated Non-ERP stations (i.e., stations using 802.11b
	209	* in 802.11g BSS) */
	210	int num_sta_non_erp;
	211
	212	/* Number of associated stations that do not support Short Slot Time */
	213	int num_sta_no_short_slot_time;
	214
	215	/* Number of associated stations that do not support Short Preamble */
	216	int num_sta_no_short_preamble;
	217
	218	int olbc; /* Overlapping Legacy BSS Condition */
	219
de9289c8 JM	220	/* Number of HT associated stations that do not support greenfield */
	221	int num_sta_ht_no_gf;
	222
	223	/* Number of associated non-HT stations */
	224	int num_sta_no_ht;
	225
	226	/* Number of HT associated stations 20 MHz */
	227	int num_sta_ht_20mhz;
	228
	229	/* Overlapping BSS information */
	230	int olbc_ht;
	231
edd360e1	232	u16 ht_op_mode;
ad1e68e6	233	void (scan_cb)(struct hostapd_iface iface);
70db2ab3 JM	234
	235	int (ctrl_iface_init)(struct hostapd_data hapd);
	236	void (ctrl_iface_deinit)(struct hostapd_data hapd);
1b56c26c JM	237
	238	int (for_each_interface)(struct hapd_interfaces interfaces,
	239	int (cb)(struct hostapd_iface iface,
	240	void ctx), void ctx);
6fc6879b JM	241	};
6fc6879b JM	242
a4f21109	243	/* hostapd.c */
ad08c363	244	int hostapd_reload_config(struct hostapd_iface *iface);
b6a7859d JM	245	struct hostapd_data *
	246	hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
	247	struct hostapd_config *conf,
	248	struct hostapd_bss_config *bss);
5c333467	249	int hostapd_setup_interface(struct hostapd_iface *iface);
ad1e68e6	250	int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
5c333467	251	void hostapd_interface_deinit(struct hostapd_iface *iface);
f7c47833	252	void hostapd_interface_free(struct hostapd_iface *iface);
a4f21109 JM	253	void hostapd_new_assoc_sta(struct hostapd_data hapd, struct sta_info sta,
a4f21109 JM	254	int reassoc);
5c333467	255
a4f21109	256	/* utils.c */
fa16028d	257	int hostapd_register_probereq_cb(struct hostapd_data *hapd,
cd7d80f3 JM	258	int (cb)(void ctx, const u8 *sa,
cd7d80f3 JM	259	const u8 *ie, size_t ie_len),
fa16028d	260	void *ctx);
0aef3ec8	261	void hostapd_prune_associations(struct hostapd_data hapd, const u8 addr);
fa16028d	262
1d041bec JM	263	/* drv_callbacks.c (TODO: move to somewhere else?) */
	264	int hostapd_notif_assoc(struct hostapd_data hapd, const u8 addr,
	265	const u8 *ie, size_t ielen);
	266	void hostapd_notif_disassoc(struct hostapd_data hapd, const u8 addr);
	267
6fc6879b	268	#endif /* HOSTAPD_H */