1 /* 2 * hostapd / Initialization and configuration 3 * Copyright (c) 2002-2009, 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_H 10 #define HOSTAPD_H 11 12 #include "common/defs.h" 13 14 struct wpa_driver_ops; 15 struct wpa_ctrl_dst; 16 struct radius_server_data; 17 struct upnp_wps_device_sm; 18 struct hostapd_data; 19 struct sta_info; 20 struct hostap_sta_driver_data; 21 struct ieee80211_ht_capabilities; 22 struct full_dynamic_vlan; 23 enum wps_event; 24 union wps_event_data; 25 26 struct hostapd_iface; 27 28 struct hapd_interfaces { 29 int (*reload_config)(struct hostapd_iface *iface); 30 struct hostapd_config * (*config_read_cb)(const char *config_fname); 31 int (*ctrl_iface_init)(struct hostapd_data *hapd); 32 void (*ctrl_iface_deinit)(struct hostapd_data *hapd); 33 int (*for_each_interface)(struct hapd_interfaces *interfaces, 34 int (*cb)(struct hostapd_iface *iface, 35 void *ctx), void *ctx); 36 int (*driver_init)(struct hostapd_iface *iface); 37 38 size_t count; 39 int global_ctrl_sock; 40 char *global_iface_path; 41 char *global_iface_name; 42 struct hostapd_iface **iface; 43 }; 44 45 46 struct hostapd_probereq_cb { 47 int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid, 48 const u8 *ie, size_t ie_len, int ssi_signal); 49 void *ctx; 50 }; 51 52 #define HOSTAPD_RATE_BASIC 0x00000001 53 54 struct hostapd_rate_data { 55 int rate; /* rate in 100 kbps */ 56 int flags; /* HOSTAPD_RATE_ flags */ 57 }; 58 59 struct hostapd_frame_info { 60 u32 channel; 61 u32 datarate; 62 int ssi_signal; /* dBm */ 63 }; 64 65 66 /** 67 * struct hostapd_data - hostapd per-BSS data structure 68 */ 69 struct hostapd_data { 70 struct hostapd_iface *iface; 71 struct hostapd_config *iconf; 72 struct hostapd_bss_config *conf; 73 int interface_added; /* virtual interface added for this BSS */ 74 75 u8 own_addr[ETH_ALEN]; 76 77 int num_sta; /* number of entries in sta_list */ 78 struct sta_info *sta_list; /* STA info list head */ 79 #define STA_HASH_SIZE 256 80 #define STA_HASH(sta) (sta[5]) 81 struct sta_info *sta_hash[STA_HASH_SIZE]; 82 83 /* 84 * Bitfield for indicating which AIDs are allocated. Only AID values 85 * 1-2007 are used and as such, the bit at index 0 corresponds to AID 86 * 1. 87 */ 88 #define AID_WORDS ((2008 + 31) / 32) 89 u32 sta_aid[AID_WORDS]; 90 91 const struct wpa_driver_ops *driver; 92 void *drv_priv; 93 94 void (*new_assoc_sta_cb)(struct hostapd_data *hapd, 95 struct sta_info *sta, int reassoc); 96 97 void *msg_ctx; /* ctx for wpa_msg() calls */ 98 void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */ 99 100 struct radius_client_data *radius; 101 u32 acct_session_id_hi, acct_session_id_lo; 102 struct radius_das_data *radius_das; 103 104 struct iapp_data *iapp; 105 106 struct hostapd_cached_radius_acl *acl_cache; 107 struct hostapd_acl_query_data *acl_queries; 108 109 struct wpa_authenticator *wpa_auth; 110 struct eapol_authenticator *eapol_auth; 111 112 struct rsn_preauth_interface *preauth_iface; 113 time_t michael_mic_failure; 114 int michael_mic_failures; 115 int tkip_countermeasures; 116 117 int ctrl_sock; 118 struct wpa_ctrl_dst *ctrl_dst; 119 120 void *ssl_ctx; 121 void *eap_sim_db_priv; 122 struct radius_server_data *radius_srv; 123 124 int parameter_set_count; 125 126 /* Time Advertisement */ 127 u8 time_update_counter; 128 struct wpabuf *time_adv; 129 130 #ifdef CONFIG_FULL_DYNAMIC_VLAN 131 struct full_dynamic_vlan *full_dynamic_vlan; 132 #endif /* CONFIG_FULL_DYNAMIC_VLAN */ 133 134 struct l2_packet_data *l2; 135 struct wps_context *wps; 136 137 int beacon_set_done; 138 struct wpabuf *wps_beacon_ie; 139 struct wpabuf *wps_probe_resp_ie; 140 #ifdef CONFIG_WPS 141 unsigned int ap_pin_failures; 142 unsigned int ap_pin_failures_consecutive; 143 struct upnp_wps_device_sm *wps_upnp; 144 unsigned int ap_pin_lockout_time; 145 #endif /* CONFIG_WPS */ 146 147 struct hostapd_probereq_cb *probereq_cb; 148 size_t num_probereq_cb; 149 150 void (*public_action_cb)(void *ctx, const u8 *buf, size_t len, 151 int freq); 152 void *public_action_cb_ctx; 153 154 int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len, 155 int freq); 156 void *vendor_action_cb_ctx; 157 158 void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr, 159 const u8 *uuid_e); 160 void *wps_reg_success_cb_ctx; 161 162 void (*wps_event_cb)(void *ctx, enum wps_event event, 163 union wps_event_data *data); 164 void *wps_event_cb_ctx; 165 166 void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr, 167 int authorized, const u8 *p2p_dev_addr); 168 void *sta_authorized_cb_ctx; 169 170 void (*setup_complete_cb)(void *ctx); 171 void *setup_complete_cb_ctx; 172 173 #ifdef CONFIG_P2P 174 struct p2p_data *p2p; 175 struct p2p_group *p2p_group; 176 struct wpabuf *p2p_beacon_ie; 177 struct wpabuf *p2p_probe_resp_ie; 178 179 /* Number of non-P2P association stations */ 180 int num_sta_no_p2p; 181 182 /* Periodic NoA (used only when no non-P2P clients in the group) */ 183 int noa_enabled; 184 int noa_start; 185 int noa_duration; 186 #endif /* CONFIG_P2P */ 187 #ifdef CONFIG_INTERWORKING 188 size_t gas_frag_limit; 189 #endif /* CONFIG_INTERWORKING */ 190 }; 191 192 193 /** 194 * struct hostapd_iface - hostapd per-interface data structure 195 */ 196 struct hostapd_iface { 197 struct hapd_interfaces *interfaces; 198 void *owner; 199 char *config_fname; 200 struct hostapd_config *conf; 201 202 size_t num_bss; 203 struct hostapd_data **bss; 204 205 int num_ap; /* number of entries in ap_list */ 206 struct ap_info *ap_list; /* AP info list head */ 207 struct ap_info *ap_hash[STA_HASH_SIZE]; 208 struct ap_info *ap_iter_list; 209 210 unsigned int drv_flags; 211 212 /* 213 * A bitmap of supported protocols for probe response offload. See 214 * struct wpa_driver_capa in driver.h 215 */ 216 unsigned int probe_resp_offloads; 217 218 struct hostapd_hw_modes *hw_features; 219 int num_hw_features; 220 struct hostapd_hw_modes *current_mode; 221 /* Rates that are currently used (i.e., filtered copy of 222 * current_mode->channels */ 223 int num_rates; 224 struct hostapd_rate_data *current_rates; 225 int *basic_rates; 226 int freq; 227 228 u16 hw_flags; 229 230 /* Number of associated Non-ERP stations (i.e., stations using 802.11b 231 * in 802.11g BSS) */ 232 int num_sta_non_erp; 233 234 /* Number of associated stations that do not support Short Slot Time */ 235 int num_sta_no_short_slot_time; 236 237 /* Number of associated stations that do not support Short Preamble */ 238 int num_sta_no_short_preamble; 239 240 int olbc; /* Overlapping Legacy BSS Condition */ 241 242 /* Number of HT associated stations that do not support greenfield */ 243 int num_sta_ht_no_gf; 244 245 /* Number of associated non-HT stations */ 246 int num_sta_no_ht; 247 248 /* Number of HT associated stations 20 MHz */ 249 int num_sta_ht_20mhz; 250 251 /* Overlapping BSS information */ 252 int olbc_ht; 253 254 u16 ht_op_mode; 255 void (*scan_cb)(struct hostapd_iface *iface); 256 }; 257 258 /* hostapd.c */ 259 int hostapd_for_each_interface(struct hapd_interfaces *interfaces, 260 int (*cb)(struct hostapd_iface *iface, 261 void *ctx), void *ctx); 262 int hostapd_reload_config(struct hostapd_iface *iface); 263 struct hostapd_data * 264 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface, 265 struct hostapd_config *conf, 266 struct hostapd_bss_config *bss); 267 int hostapd_setup_interface(struct hostapd_iface *iface); 268 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err); 269 void hostapd_interface_deinit(struct hostapd_iface *iface); 270 void hostapd_interface_free(struct hostapd_iface *iface); 271 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta, 272 int reassoc); 273 void hostapd_interface_deinit_free(struct hostapd_iface *iface); 274 int hostapd_enable_iface(struct hostapd_iface *hapd_iface); 275 int hostapd_reload_iface(struct hostapd_iface *hapd_iface); 276 int hostapd_disable_iface(struct hostapd_iface *hapd_iface); 277 int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf); 278 int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf); 279 280 /* utils.c */ 281 int hostapd_register_probereq_cb(struct hostapd_data *hapd, 282 int (*cb)(void *ctx, const u8 *sa, 283 const u8 *da, const u8 *bssid, 284 const u8 *ie, size_t ie_len, 285 int ssi_signal), 286 void *ctx); 287 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr); 288 289 /* drv_callbacks.c (TODO: move to somewhere else?) */ 290 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, 291 const u8 *ie, size_t ielen, int reassoc); 292 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr); 293 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr); 294 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, 295 const u8 *bssid, const u8 *ie, size_t ie_len, 296 int ssi_signal); 297 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, 298 int offset); 299 300 #endif /* HOSTAPD_H */ 301