contrib/hostapd/hostapd/hostapd.h

   1 /*
   2  * hostapd / Initialization and configuration
   3  * Host AP kernel driver
   4  * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
   5  * Copyright (c) 2007-2008, Intel Corporation
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * Alternatively, this software may be distributed under the terms of BSD
  12  * license.
  13  *
  14  * See README and COPYING for more details.
  15  */
  16
  17 #ifndef HOSTAPD_H
  18 #define HOSTAPD_H
  19
  20 #include "common.h"
  21 #include "ap.h"
  22
  23 #ifndef ETH_ALEN
  24 #define ETH_ALEN 6
  25 #endif
  26 #ifndef IFNAMSIZ
  27 #define IFNAMSIZ 16
  28 #endif
  29 #ifndef ETH_P_ALL
  30 #define ETH_P_ALL 0x0003
  31 #endif
  32 #ifndef ETH_P_PAE
  33 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
  34 #endif /* ETH_P_PAE */
  35 #ifndef ETH_P_EAPOL
  36 #define ETH_P_EAPOL ETH_P_PAE
  37 #endif /* ETH_P_EAPOL */
  38
  39 #ifndef ETH_P_RRB
  40 #define ETH_P_RRB 0x890D
  41 #endif /* ETH_P_RRB */
  42
  43 #include "config.h"
  44
  45 #ifdef _MSC_VER
  46 #pragma pack(push, 1)
  47 #endif /* _MSC_VER */
  48
  49 #define MAX_VLAN_ID 4094
  50
  51 struct ieee8023_hdr {
  52         u8 dest[6];
  53         u8 src[6];
  54         u16 ethertype;
  55 } STRUCT_PACKED;
  56
  57
  58 struct ieee80211_hdr {
  59         le16 frame_control;
  60         le16 duration_id;
  61         u8 addr1[6];
  62         u8 addr2[6];
  63         u8 addr3[6];
  64         le16 seq_ctrl;
  65         /* followed by 'u8 addr4[6];' if ToDS and FromDS is set in data frame
  66          */
  67 } STRUCT_PACKED;
  68
  69 #ifdef _MSC_VER
  70 #pragma pack(pop)
  71 #endif /* _MSC_VER */
  72
  73 #define IEEE80211_DA_FROMDS addr1
  74 #define IEEE80211_BSSID_FROMDS addr2
  75 #define IEEE80211_SA_FROMDS addr3
  76
  77 #define IEEE80211_HDRLEN (sizeof(struct ieee80211_hdr))
  78
  79 #define IEEE80211_FC(type, stype) host_to_le16((type << 2) | (stype << 4))
  80
  81 /* MTU to be set for the wlan#ap device; this is mainly needed for IEEE 802.1X
  82  * frames that might be longer than normal default MTU and they are not
  83  * fragmented */
  84 #define HOSTAPD_MTU 2290
  85
  86 extern unsigned char rfc1042_header[6];
  87
  88 struct hostap_sta_driver_data {
  89         unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes;
  90         unsigned long current_tx_rate;
  91         unsigned long inactive_msec;
  92         unsigned long flags;
  93         unsigned long num_ps_buf_frames;
  94         unsigned long tx_retry_failed;
  95         unsigned long tx_retry_count;
  96         int last_rssi;
  97         int last_ack_rssi;
  98 };
  99
 100 struct wpa_driver_ops;
 101 struct wpa_ctrl_dst;
 102 struct radius_server_data;
 103 struct upnp_wps_device_sm;
 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         const struct wpa_driver_ops *driver;
 131         void *drv_priv;
 132
 133         u8 *default_wep_key;
 134         u8 default_wep_key_idx;
 135
 136         struct radius_client_data *radius;
 137         int radius_client_reconfigured;
 138         u32 acct_session_id_hi, acct_session_id_lo;
 139
 140         struct iapp_data *iapp;
 141
 142         struct hostapd_cached_radius_acl *acl_cache;
 143         struct hostapd_acl_query_data *acl_queries;
 144
 145         struct wpa_authenticator *wpa_auth;
 146         struct eapol_authenticator *eapol_auth;
 147
 148         struct rsn_preauth_interface *preauth_iface;
 149         time_t michael_mic_failure;
 150         int michael_mic_failures;
 151         int tkip_countermeasures;
 152
 153         int ctrl_sock;
 154         struct wpa_ctrl_dst *ctrl_dst;
 155
 156         void *ssl_ctx;
 157         void *eap_sim_db_priv;
 158         struct radius_server_data *radius_srv;
 159
 160         int parameter_set_count;
 161
 162 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 163         struct full_dynamic_vlan *full_dynamic_vlan;
 164 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 165
 166         struct l2_packet_data *l2;
 167         struct wps_context *wps;
 168
 169 #ifdef CONFIG_WPS
 170         u8 *wps_beacon_ie;
 171         size_t wps_beacon_ie_len;
 172         u8 *wps_probe_resp_ie;
 173         size_t wps_probe_resp_ie_len;
 174         unsigned int ap_pin_failures;
 175         struct upnp_wps_device_sm *wps_upnp;
 176 #endif /* CONFIG_WPS */
 177 };
 178
 179
 180 /**
 181  * struct hostapd_iface - hostapd per-interface data structure
 182  */
 183 struct hostapd_iface {
 184         char *config_fname;
 185         struct hostapd_config *conf;
 186
 187         size_t num_bss;
 188         struct hostapd_data **bss;
 189
 190         int num_ap; /* number of entries in ap_list */
 191         struct ap_info *ap_list; /* AP info list head */
 192         struct ap_info *ap_hash[STA_HASH_SIZE];
 193         struct ap_info *ap_iter_list;
 194
 195         struct hostapd_hw_modes *hw_features;
 196         int num_hw_features;
 197         struct hostapd_hw_modes *current_mode;
 198         /* Rates that are currently used (i.e., filtered copy of
 199          * current_mode->channels */
 200         int num_rates;
 201         struct hostapd_rate_data *current_rates;
 202
 203         u16 hw_flags;
 204
 205         /* Number of associated Non-ERP stations (i.e., stations using 802.11b
 206          * in 802.11g BSS) */
 207         int num_sta_non_erp;
 208
 209         /* Number of associated stations that do not support Short Slot Time */
 210         int num_sta_no_short_slot_time;
 211
 212         /* Number of associated stations that do not support Short Preamble */
 213         int num_sta_no_short_preamble;
 214
 215         int olbc; /* Overlapping Legacy BSS Condition */
 216
 217         /* Number of HT associated stations that do not support greenfield */
 218         int num_sta_ht_no_gf;
 219
 220         /* Number of associated non-HT stations */
 221         int num_sta_no_ht;
 222
 223         /* Number of HT associated stations 20 MHz */
 224         int num_sta_ht_20mhz;
 225
 226         /* Overlapping BSS information */
 227         int olbc_ht;
 228
 229 #ifdef CONFIG_IEEE80211N
 230         u16 ht_op_mode;
 231 #endif /* CONFIG_IEEE80211N */
 232 };
 233
 234 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
 235                            int reassoc);
 236 int hostapd_reload_config(struct hostapd_iface *iface);
 237
 238 #endif /* HOSTAPD_H */