hostapd/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
  29 #ifdef CONFIG_FULL_DYNAMIC_VLAN
  30 struct full_dynamic_vlan;
  31 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
  32
  33 struct hostapd_probereq_cb {
  34         void (*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
  40 struct hostapd_rate_data {
  41         int rate; /* rate in 100 kbps */
  42         int flags; /* HOSTAPD_RATE_ flags */
  43 };
  44
  45
  46 struct hostapd_driver_ops {
  47         int (*set_ap_wps_ie)(struct hostapd_data *hapd,
  48                              const struct wpabuf *beacon,
  49                              const struct wpabuf *probe);
  50         int (*send_mgmt_frame)(struct hostapd_data *hapd, const void *msg,
  51                                size_t len);
  52         int (*send_eapol)(struct hostapd_data *hapd, const u8 *addr,
  53                           const u8 *data, size_t data_len, int encrypt);
  54         int (*set_authorized)(struct hostapd_data *hapd, struct sta_info *sta,
  55                               int authorized);
  56         int (*set_key)(const char *ifname, struct hostapd_data *hapd,
  57                        wpa_alg alg, const u8 *addr, int key_idx,
  58                        int set_tx, const u8 *seq, size_t seq_len,
  59                        const u8 *key, size_t key_len);
  60         int (*read_sta_data)(struct hostapd_data *hapd,
  61                              struct hostap_sta_driver_data *data,
  62                              const u8 *addr);
  63         int (*sta_clear_stats)(struct hostapd_data *hapd, const u8 *addr);
  64         int (*set_sta_flags)(struct hostapd_data *hapd, struct sta_info *sta);
  65 };
  66
  67 /**
  68  * struct hostapd_data - hostapd per-BSS data structure
  69  */
  70 struct hostapd_data {
  71         struct hostapd_iface *iface;
  72         struct hostapd_config *iconf;
  73         struct hostapd_bss_config *conf;
  74         int interface_added; /* virtual interface added for this BSS */
  75
  76         u8 own_addr[ETH_ALEN];
  77
  78         int num_sta; /* number of entries in sta_list */
  79         struct sta_info *sta_list; /* STA info list head */
  80 #define STA_HASH_SIZE 256
  81 #define STA_HASH(sta) (sta[5])
  82         struct sta_info *sta_hash[STA_HASH_SIZE];
  83
  84         /*
  85          * Bitfield for indicating which AIDs are allocated. Only AID values
  86          * 1-2007 are used and as such, the bit at index 0 corresponds to AID
  87          * 1.
  88          */
  89 #define AID_WORDS ((2008 + 31) / 32)
  90         u32 sta_aid[AID_WORDS];
  91
  92         const struct wpa_driver_ops *driver;
  93         void *drv_priv;
  94         struct hostapd_driver_ops drv;
  95
  96         void *msg_ctx; /* ctx for wpa_msg() calls */
  97
  98         struct radius_client_data *radius;
  99         u32 acct_session_id_hi, acct_session_id_lo;
 100
 101         struct iapp_data *iapp;
 102
 103         struct hostapd_cached_radius_acl *acl_cache;
 104         struct hostapd_acl_query_data *acl_queries;
 105
 106         struct wpa_authenticator *wpa_auth;
 107         struct eapol_authenticator *eapol_auth;
 108
 109         struct rsn_preauth_interface *preauth_iface;
 110         time_t michael_mic_failure;
 111         int michael_mic_failures;
 112         int tkip_countermeasures;
 113
 114         int ctrl_sock;
 115         struct wpa_ctrl_dst *ctrl_dst;
 116
 117         void *ssl_ctx;
 118         void *eap_sim_db_priv;
 119         struct radius_server_data *radius_srv;
 120
 121         int parameter_set_count;
 122
 123 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 124         struct full_dynamic_vlan *full_dynamic_vlan;
 125 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 126
 127         struct l2_packet_data *l2;
 128         struct wps_context *wps;
 129
 130 #ifdef CONFIG_WPS
 131         struct wpabuf *wps_beacon_ie;
 132         struct wpabuf *wps_probe_resp_ie;
 133         unsigned int ap_pin_failures;
 134         struct upnp_wps_device_sm *wps_upnp;
 135 #endif /* CONFIG_WPS */
 136
 137         struct hostapd_probereq_cb *probereq_cb;
 138         size_t num_probereq_cb;
 139 };
 140
 141
 142 /**
 143  * struct hostapd_iface - hostapd per-interface data structure
 144  */
 145 struct hostapd_iface {
 146         struct hapd_interfaces *interfaces;
 147         void *owner;
 148         struct hostapd_config * (*config_read_cb)(const char *config_fname);
 149         char *config_fname;
 150         struct hostapd_config *conf;
 151
 152         size_t num_bss;
 153         struct hostapd_data **bss;
 154
 155         int num_ap; /* number of entries in ap_list */
 156         struct ap_info *ap_list; /* AP info list head */
 157         struct ap_info *ap_hash[STA_HASH_SIZE];
 158         struct ap_info *ap_iter_list;
 159
 160         struct hostapd_hw_modes *hw_features;
 161         int num_hw_features;
 162         struct hostapd_hw_modes *current_mode;
 163         /* Rates that are currently used (i.e., filtered copy of
 164          * current_mode->channels */
 165         int num_rates;
 166         struct hostapd_rate_data *current_rates;
 167
 168         u16 hw_flags;
 169
 170         /* Number of associated Non-ERP stations (i.e., stations using 802.11b
 171          * in 802.11g BSS) */
 172         int num_sta_non_erp;
 173
 174         /* Number of associated stations that do not support Short Slot Time */
 175         int num_sta_no_short_slot_time;
 176
 177         /* Number of associated stations that do not support Short Preamble */
 178         int num_sta_no_short_preamble;
 179
 180         int olbc; /* Overlapping Legacy BSS Condition */
 181
 182         /* Number of HT associated stations that do not support greenfield */
 183         int num_sta_ht_no_gf;
 184
 185         /* Number of associated non-HT stations */
 186         int num_sta_no_ht;
 187
 188         /* Number of HT associated stations 20 MHz */
 189         int num_sta_ht_20mhz;
 190
 191         /* Overlapping BSS information */
 192         int olbc_ht;
 193
 194         u16 ht_op_mode;
 195         void (*scan_cb)(struct hostapd_iface *iface);
 196 };
 197
 198 int hostapd_reload_config(struct hostapd_iface *iface);
 199 struct hostapd_data *
 200 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
 201                        struct hostapd_config *conf,
 202                        struct hostapd_bss_config *bss);
 203 int hostapd_setup_interface(struct hostapd_iface *iface);
 204 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
 205 void hostapd_interface_deinit(struct hostapd_iface *iface);
 206 int handle_reload_iface(struct hostapd_iface *iface, void *ctx);
 207 int handle_dump_state_iface(struct hostapd_iface *iface, void *ctx);
 208
 209 int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
 210                                int (*cb)(struct hostapd_iface *iface,
 211                                          void *ctx), void *ctx);
 212
 213 int hostapd_register_probereq_cb(struct hostapd_data *hapd,
 214                                  void (*cb)(void *ctx, const u8 *sa,
 215                                             const u8 *ie, size_t ie_len),
 216                                  void *ctx);
 217 int hostapd_set_drv_ieee8021x(struct hostapd_data *hapd, const char *ifname,
 218                               int enabled);
 219
 220 int eap_server_register_methods(void);
 221 void hostapd_set_driver_ops(struct hostapd_driver_ops *ops);
 222
 223 #endif /* HOSTAPD_H */