contrib/hostapd-0.5.8/hostapd.h

   1 /*
   2  * hostapd / Initialization and configuration
   3  * Host AP kernel driver
   4  * Copyright (c) 2002-2006, Jouni Malinen <j@w1.fi>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #ifndef HOSTAPD_H
  17 #define HOSTAPD_H
  18
  19 #include "common.h"
  20 #include "ap.h"
  21
  22 #ifndef ETH_ALEN
  23 #define ETH_ALEN 6
  24 #endif
  25 #ifndef IFNAMSIZ
  26 #define IFNAMSIZ 16
  27 #endif
  28 #ifndef ETH_P_ALL
  29 #define ETH_P_ALL 0x0003
  30 #endif
  31 #ifndef ETH_P_PAE
  32 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
  33 #endif /* ETH_P_PAE */
  34
  35 #ifndef BIT
  36 #define BIT(x) (1 << (x))
  37 #endif
  38
  39 #ifndef MAC2STR
  40 #define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
  41 #define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
  42 #endif
  43
  44 #include "config.h"
  45
  46 #ifdef _MSC_VER
  47 #pragma pack(push, 1)
  48 #endif /* _MSC_VER */
  49
  50 #define MAX_VLAN_ID 4094
  51
  52 struct ieee8023_hdr {
  53         u8 dest[6];
  54         u8 src[6];
  55         u16 ethertype;
  56 } STRUCT_PACKED;
  57
  58
  59 struct ieee80211_hdr {
  60         u16 frame_control;
  61         u16 duration_id;
  62         u8 addr1[6];
  63         u8 addr2[6];
  64         u8 addr3[6];
  65         u16 seq_ctrl;
  66         /* followed by 'u8 addr4[6];' if ToDS and FromDS is set in data frame
  67          */
  68 } STRUCT_PACKED;
  69
  70 #ifdef _MSC_VER
  71 #pragma pack(pop)
  72 #endif /* _MSC_VER */
  73
  74 #define IEEE80211_DA_FROMDS addr1
  75 #define IEEE80211_BSSID_FROMDS addr2
  76 #define IEEE80211_SA_FROMDS addr3
  77
  78 #define IEEE80211_HDRLEN (sizeof(struct ieee80211_hdr))
  79
  80 #define IEEE80211_FC(type, stype) host_to_le16((type << 2) | (stype << 4))
  81
  82 /* MTU to be set for the wlan#ap device; this is mainly needed for IEEE 802.1X
  83  * frames that might be longer than normal default MTU and they are not
  84  * fragmented */
  85 #define HOSTAPD_MTU 2290
  86
  87 extern unsigned char rfc1042_header[6];
  88
  89 struct hostap_sta_driver_data {
  90         unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes;
  91         unsigned long current_tx_rate;
  92         unsigned long inactive_msec;
  93         unsigned long flags;
  94         unsigned long num_ps_buf_frames;
  95         unsigned long tx_retry_failed;
  96         unsigned long tx_retry_count;
  97         int last_rssi;
  98         int last_ack_rssi;
  99 };
 100
 101 struct driver_ops;
 102 struct wpa_ctrl_dst;
 103 struct radius_server_data;
 104
 105 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 106 struct full_dynamic_vlan;
 107 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 108
 109 /**
 110  * struct hostapd_data - hostapd per-BSS data structure
 111  */
 112 struct hostapd_data {
 113         struct hostapd_iface *iface;
 114         struct hostapd_config *iconf;
 115         struct hostapd_bss_config *conf;
 116         int interface_added; /* virtual interface added for this BSS */
 117
 118         u8 own_addr[ETH_ALEN];
 119
 120         int num_sta; /* number of entries in sta_list */
 121         struct sta_info *sta_list; /* STA info list head */
 122         struct sta_info *sta_hash[STA_HASH_SIZE];
 123
 124         /* pointers to STA info; based on allocated AID or NULL if AID free
 125          * AID is in the range 1-2007, so sta_aid[0] corresponders to AID 1
 126          * and so on
 127          */
 128         struct sta_info *sta_aid[MAX_AID_TABLE_SIZE];
 129
 130         struct driver_ops *driver;
 131
 132         u8 *default_wep_key;
 133         u8 default_wep_key_idx;
 134
 135         struct radius_client_data *radius;
 136         int radius_client_reconfigured;
 137         u32 acct_session_id_hi, acct_session_id_lo;
 138
 139         struct iapp_data *iapp;
 140
 141         enum { DO_NOT_ASSOC = 0, WAIT_BEACON, AUTHENTICATE, ASSOCIATE,
 142                ASSOCIATED } assoc_ap_state;
 143         char assoc_ap_ssid[33];
 144         int assoc_ap_ssid_len;
 145         u16 assoc_ap_aid;
 146
 147         struct hostapd_cached_radius_acl *acl_cache;
 148         struct hostapd_acl_query_data *acl_queries;
 149
 150         struct wpa_authenticator *wpa_auth;
 151
 152         struct rsn_preauth_interface *preauth_iface;
 153         time_t michael_mic_failure;
 154         int michael_mic_failures;
 155         int tkip_countermeasures;
 156
 157         int ctrl_sock;
 158         struct wpa_ctrl_dst *ctrl_dst;
 159
 160         void *ssl_ctx;
 161         void *eap_sim_db_priv;
 162         struct radius_server_data *radius_srv;
 163
 164         int parameter_set_count;
 165
 166 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 167         struct full_dynamic_vlan *full_dynamic_vlan;
 168 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 169 };
 170
 171
 172 /**
 173  * hostapd_iface_cb - Generic callback type for per-iface asynchronous requests
 174  * @iface: the interface the event occured on.
 175  * @status: 0 if the request succeeded; -1 if the request failed.
 176  */
 177 typedef void (*hostapd_iface_cb)(struct hostapd_iface *iface, int status);
 178
 179
 180 struct hostapd_config_change;
 181
 182 /**
 183  * struct hostapd_iface - hostapd per-interface data structure
 184  */
 185 struct hostapd_iface {
 186         char *config_fname;
 187         struct hostapd_config *conf;
 188
 189         hostapd_iface_cb setup_cb;
 190
 191         size_t num_bss;
 192         struct hostapd_data **bss;
 193
 194         int num_ap; /* number of entries in ap_list */
 195         struct ap_info *ap_list; /* AP info list head */
 196         struct ap_info *ap_hash[STA_HASH_SIZE];
 197         struct ap_info *ap_iter_list;
 198
 199         struct hostapd_hw_modes *hw_features;
 200         int num_hw_features;
 201         struct hostapd_hw_modes *current_mode;
 202         /* Rates that are currently used (i.e., filtered copy of
 203          * current_mode->channels */
 204         int num_rates;
 205         struct hostapd_rate_data *current_rates;
 206         hostapd_iface_cb hw_mode_sel_cb;
 207
 208         u16 hw_flags;
 209
 210         /* Number of associated Non-ERP stations (i.e., stations using 802.11b
 211          * in 802.11g BSS) */
 212         int num_sta_non_erp;
 213
 214         /* Number of associated stations that do not support Short Slot Time */
 215         int num_sta_no_short_slot_time;
 216
 217         /* Number of associated stations that do not support Short Preamble */
 218         int num_sta_no_short_preamble;
 219
 220         int olbc; /* Overlapping Legacy BSS Condition */
 221
 222         int dfs_enable;
 223         u8 pwr_const;
 224         unsigned int tx_power;
 225         unsigned int sta_max_power;
 226
 227         unsigned int channel_switch;
 228
 229         struct hostapd_config_change *change;
 230         hostapd_iface_cb reload_iface_cb;
 231         hostapd_iface_cb config_reload_cb;
 232 };
 233
 234 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
 235                            int reassoc);
 236 void hostapd_logger(struct hostapd_data *hapd, const u8 *addr,
 237                     unsigned int module, int level, const char *fmt,
 238                     ...) PRINTF_FORMAT(5, 6);
 239
 240
 241 #ifndef _MSC_VER
 242 #define HOSTAPD_DEBUG(level, args...) \
 243 do { \
 244         if (hapd->conf == NULL || hapd->conf->debug >= (level)) \
 245                 printf(args); \
 246 } while (0)
 247 #endif /* _MSC_VER */
 248
 249 #define HOSTAPD_DEBUG_COND(level) (hapd->conf->debug >= (level))
 250
 251 const char * hostapd_ip_txt(const struct hostapd_ip_addr *addr, char *buf,
 252                             size_t buflen);
 253 int hostapd_ip_diff(struct hostapd_ip_addr *a, struct hostapd_ip_addr *b);
 254
 255 #endif /* HOSTAPD_H */