src/ap/hostapd.h

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