1/*
2 * hostapd / Initialization and configuration
3 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
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
18#include "common/defs.h"
19
20struct wpa_driver_ops;
21struct wpa_ctrl_dst;
22struct radius_server_data;
23struct upnp_wps_device_sm;
24struct hapd_interfaces;
25struct hostapd_data;
26struct sta_info;
27struct hostap_sta_driver_data;
28struct ieee80211_ht_capabilities;
29struct full_dynamic_vlan;
30enum wps_event;
31union wps_event_data;
32
33struct hostapd_probereq_cb {
34	int (*cb)(void *ctx, const u8 *sa, const u8 *ie, size_t ie_len);
35	void *ctx;
36};
37
38#define HOSTAPD_RATE_BASIC 0x00000001
39
40struct hostapd_rate_data {
41	int rate; /* rate in 100 kbps */
42	int flags; /* HOSTAPD_RATE_ flags */
43};
44
45struct hostapd_frame_info {
46	u32 channel;
47	u32 datarate;
48	u32 ssi_signal;
49};
50
51
52/**
53 * struct hostapd_data - hostapd per-BSS data structure
54 */
55struct hostapd_data {
56	struct hostapd_iface *iface;
57	struct hostapd_config *iconf;
58	struct hostapd_bss_config *conf;
59	int interface_added; /* virtual interface added for this BSS */
60
61	u8 own_addr[ETH_ALEN];
62
63	int num_sta; /* number of entries in sta_list */
64	struct sta_info *sta_list; /* STA info list head */
65#define STA_HASH_SIZE 256
66#define STA_HASH(sta) (sta[5])
67	struct sta_info *sta_hash[STA_HASH_SIZE];
68
69	/*
70	 * Bitfield for indicating which AIDs are allocated. Only AID values
71	 * 1-2007 are used and as such, the bit at index 0 corresponds to AID
72	 * 1.
73	 */
74#define AID_WORDS ((2008 + 31) / 32)
75	u32 sta_aid[AID_WORDS];
76
77	const struct wpa_driver_ops *driver;
78	void *drv_priv;
79
80	void (*new_assoc_sta_cb)(struct hostapd_data *hapd,
81				 struct sta_info *sta, int reassoc);
82
83	void *msg_ctx; /* ctx for wpa_msg() calls */
84#ifdef ANDROID_BRCM_P2P_PATCH
85	/* Sending the event to parent is required as SSL listens on parent ctrl iface */
86	void *msg_ctx_parent; /* ctx for wpa_msg() calls */
87#endif /*ANDROID_BRCM_P2P_PATCH*/
88
89	struct radius_client_data *radius;
90	u32 acct_session_id_hi, acct_session_id_lo;
91
92	struct iapp_data *iapp;
93
94	struct hostapd_cached_radius_acl *acl_cache;
95	struct hostapd_acl_query_data *acl_queries;
96
97	struct wpa_authenticator *wpa_auth;
98	struct eapol_authenticator *eapol_auth;
99
100	struct rsn_preauth_interface *preauth_iface;
101	time_t michael_mic_failure;
102	int michael_mic_failures;
103	int tkip_countermeasures;
104
105	int ctrl_sock;
106	struct wpa_ctrl_dst *ctrl_dst;
107
108	void *ssl_ctx;
109	void *eap_sim_db_priv;
110	struct radius_server_data *radius_srv;
111
112	int parameter_set_count;
113
114#ifdef CONFIG_FULL_DYNAMIC_VLAN
115	struct full_dynamic_vlan *full_dynamic_vlan;
116#endif /* CONFIG_FULL_DYNAMIC_VLAN */
117
118	struct l2_packet_data *l2;
119	struct wps_context *wps;
120
121	struct wpabuf *wps_beacon_ie;
122	struct wpabuf *wps_probe_resp_ie;
123#ifdef CONFIG_WPS
124	unsigned int ap_pin_failures;
125	struct upnp_wps_device_sm *wps_upnp;
126	unsigned int ap_pin_lockout_time;
127#endif /* CONFIG_WPS */
128
129	struct hostapd_probereq_cb *probereq_cb;
130	size_t num_probereq_cb;
131
132	void (*public_action_cb)(void *ctx, const u8 *buf, size_t len,
133				 int freq);
134	void *public_action_cb_ctx;
135
136	int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len,
137				int freq);
138	void *vendor_action_cb_ctx;
139
140	void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr,
141				   const u8 *uuid_e);
142	void *wps_reg_success_cb_ctx;
143
144	void (*wps_event_cb)(void *ctx, enum wps_event event,
145			     union wps_event_data *data);
146	void *wps_event_cb_ctx;
147
148	void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr,
149				  int authorized);
150	void *sta_authorized_cb_ctx;
151
152	void (*setup_complete_cb)(void *ctx);
153	void *setup_complete_cb_ctx;
154
155#ifdef CONFIG_P2P
156	struct p2p_data *p2p;
157	struct p2p_group *p2p_group;
158	struct wpabuf *p2p_beacon_ie;
159	struct wpabuf *p2p_probe_resp_ie;
160
161	/* Number of non-P2P association stations */
162	int num_sta_no_p2p;
163
164	/* Periodic NoA (used only when no non-P2P clients in the group) */
165	int noa_enabled;
166	int noa_start;
167	int noa_duration;
168#endif /* CONFIG_P2P */
169};
170
171
172/**
173 * struct hostapd_iface - hostapd per-interface data structure
174 */
175struct hostapd_iface {
176	struct hapd_interfaces *interfaces;
177	void *owner;
178	int (*reload_config)(struct hostapd_iface *iface);
179	struct hostapd_config * (*config_read_cb)(const char *config_fname);
180	char *config_fname;
181	struct hostapd_config *conf;
182
183	size_t num_bss;
184	struct hostapd_data **bss;
185
186	int num_ap; /* number of entries in ap_list */
187	struct ap_info *ap_list; /* AP info list head */
188	struct ap_info *ap_hash[STA_HASH_SIZE];
189	struct ap_info *ap_iter_list;
190
191	unsigned int drv_flags;
192	struct hostapd_hw_modes *hw_features;
193	int num_hw_features;
194	struct hostapd_hw_modes *current_mode;
195	/* Rates that are currently used (i.e., filtered copy of
196	 * current_mode->channels */
197	int num_rates;
198	struct hostapd_rate_data *current_rates;
199	int freq;
200
201	u16 hw_flags;
202
203	/* Number of associated Non-ERP stations (i.e., stations using 802.11b
204	 * in 802.11g BSS) */
205	int num_sta_non_erp;
206
207	/* Number of associated stations that do not support Short Slot Time */
208	int num_sta_no_short_slot_time;
209
210	/* Number of associated stations that do not support Short Preamble */
211	int num_sta_no_short_preamble;
212
213	int olbc; /* Overlapping Legacy BSS Condition */
214
215	/* Number of HT associated stations that do not support greenfield */
216	int num_sta_ht_no_gf;
217
218	/* Number of associated non-HT stations */
219	int num_sta_no_ht;
220
221	/* Number of HT associated stations 20 MHz */
222	int num_sta_ht_20mhz;
223
224	/* Overlapping BSS information */
225	int olbc_ht;
226
227	u16 ht_op_mode;
228	void (*scan_cb)(struct hostapd_iface *iface);
229
230	int (*ctrl_iface_init)(struct hostapd_data *hapd);
231	void (*ctrl_iface_deinit)(struct hostapd_data *hapd);
232
233	int (*for_each_interface)(struct hapd_interfaces *interfaces,
234				  int (*cb)(struct hostapd_iface *iface,
235					    void *ctx), void *ctx);
236};
237
238/* hostapd.c */
239int hostapd_reload_config(struct hostapd_iface *iface);
240struct hostapd_data *
241hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
242		       struct hostapd_config *conf,
243		       struct hostapd_bss_config *bss);
244int hostapd_setup_interface(struct hostapd_iface *iface);
245int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
246void hostapd_interface_deinit(struct hostapd_iface *iface);
247void hostapd_interface_free(struct hostapd_iface *iface);
248void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
249			   int reassoc);
250
251/* utils.c */
252int hostapd_register_probereq_cb(struct hostapd_data *hapd,
253				 int (*cb)(void *ctx, const u8 *sa,
254					   const u8 *ie, size_t ie_len),
255				 void *ctx);
256void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr);
257
258/* drv_callbacks.c (TODO: move to somewhere else?) */
259int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
260			const u8 *ie, size_t ielen, int reassoc);
261void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr);
262void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr);
263int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa,
264			 const u8 *ie, size_t ie_len);
265
266#endif /* HOSTAPD_H */
267