workbench/network/WirelessManager/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
  31 struct hostapd_probereq_cb {
  32         int (*cb)(void *ctx, const u8 *sa, const u8 *ie, size_t ie_len);
  33         void *ctx;
  34 };
  35
  36 #define HOSTAPD_RATE_BASIC 0x00000001
  37
  38 struct hostapd_rate_data {
  39         int rate; /* rate in 100 kbps */
  40         int flags; /* HOSTAPD_RATE_ flags */
  41 };
  42
  43 struct hostapd_frame_info {
  44         u32 channel;
  45         u32 datarate;
  46         u32 ssi_signal;
  47 };
  48
  49
  50 struct hostapd_driver_ops {
  51         int (*set_ap_wps_ie)(struct hostapd_data *hapd);
  52         int (*send_mgmt_frame)(struct hostapd_data *hapd, const void *msg,
  53                                size_t len);
  54         int (*send_eapol)(struct hostapd_data *hapd, const u8 *addr,
  55                           const u8 *data, size_t data_len, int encrypt);
  56         int (*set_authorized)(struct hostapd_data *hapd, struct sta_info *sta,
  57                               int authorized);
  58         int (*set_key)(const char *ifname, struct hostapd_data *hapd,
  59                        enum wpa_alg alg, const u8 *addr, int key_idx,
  60                        int set_tx, const u8 *seq, size_t seq_len,
  61                        const u8 *key, size_t key_len);
  62         int (*read_sta_data)(struct hostapd_data *hapd,
  63                              struct hostap_sta_driver_data *data,
  64                              const u8 *addr);
  65         int (*sta_clear_stats)(struct hostapd_data *hapd, const u8 *addr);
  66         int (*set_sta_flags)(struct hostapd_data *hapd, struct sta_info *sta);
  67         int (*set_drv_ieee8021x)(struct hostapd_data *hapd, const char *ifname,
  68                                  int enabled);
  69         int (*set_radius_acl_auth)(struct hostapd_data *hapd,
  70                                    const u8 *mac, int accepted,
  71                                    u32 session_timeout);
  72         int (*set_radius_acl_expire)(struct hostapd_data *hapd,
  73                                      const u8 *mac);
  74         int (*set_bss_params)(struct hostapd_data *hapd, int use_protection);
  75         int (*set_beacon)(struct hostapd_data *hapd,
  76                           const u8 *head, size_t head_len,
  77                           const u8 *tail, size_t tail_len, int dtim_period,
  78                           int beacon_int);
  79         int (*vlan_if_add)(struct hostapd_data *hapd, const char *ifname);
  80         int (*vlan_if_remove)(struct hostapd_data *hapd, const char *ifname);
  81         int (*set_wds_sta)(struct hostapd_data *hapd, const u8 *addr, int aid,
  82                            int val);
  83         int (*set_sta_vlan)(const char *ifname, struct hostapd_data *hapd,
  84                             const u8 *addr, int vlan_id);
  85         int (*get_inact_sec)(struct hostapd_data *hapd, const u8 *addr);
  86         int (*sta_deauth)(struct hostapd_data *hapd, const u8 *addr,
  87                           int reason);
  88         int (*sta_disassoc)(struct hostapd_data *hapd, const u8 *addr,
  89                             int reason);
  90         int (*sta_add)(struct hostapd_data *hapd,
  91                        const u8 *addr, u16 aid, u16 capability,
  92                        const u8 *supp_rates, size_t supp_rates_len,
  93                        u16 listen_interval,
  94                        const struct ieee80211_ht_capabilities *ht_capab);
  95         int (*sta_remove)(struct hostapd_data *hapd, const u8 *addr);
  96         int (*set_countermeasures)(struct hostapd_data *hapd, int enabled);
  97 };
  98
  99 /**
 100  * struct hostapd_data - hostapd per-BSS data structure
 101  */
 102 struct hostapd_data {
 103         struct hostapd_iface *iface;
 104         struct hostapd_config *iconf;
 105         struct hostapd_bss_config *conf;
 106         int interface_added; /* virtual interface added for this BSS */
 107
 108         u8 own_addr[ETH_ALEN];
 109
 110         int num_sta; /* number of entries in sta_list */
 111         struct sta_info *sta_list; /* STA info list head */
 112 #define STA_HASH_SIZE 256
 113 #define STA_HASH(sta) (sta[5])
 114         struct sta_info *sta_hash[STA_HASH_SIZE];
 115
 116         /*
 117          * Bitfield for indicating which AIDs are allocated. Only AID values
 118          * 1-2007 are used and as such, the bit at index 0 corresponds to AID
 119          * 1.
 120          */
 121 #define AID_WORDS ((2008 + 31) / 32)
 122         u32 sta_aid[AID_WORDS];
 123
 124         const struct wpa_driver_ops *driver;
 125         void *drv_priv;
 126         struct hostapd_driver_ops drv;
 127
 128         void (*new_assoc_sta_cb)(struct hostapd_data *hapd,
 129                                  struct sta_info *sta, int reassoc);
 130
 131         void *msg_ctx; /* ctx for wpa_msg() calls */
 132
 133         struct radius_client_data *radius;
 134         u32 acct_session_id_hi, acct_session_id_lo;
 135
 136         struct iapp_data *iapp;
 137
 138         struct hostapd_cached_radius_acl *acl_cache;
 139         struct hostapd_acl_query_data *acl_queries;
 140
 141         struct wpa_authenticator *wpa_auth;
 142         struct eapol_authenticator *eapol_auth;
 143
 144         struct rsn_preauth_interface *preauth_iface;
 145         time_t michael_mic_failure;
 146         int michael_mic_failures;
 147         int tkip_countermeasures;
 148
 149         int ctrl_sock;
 150         struct wpa_ctrl_dst *ctrl_dst;
 151
 152         void *ssl_ctx;
 153         void *eap_sim_db_priv;
 154         struct radius_server_data *radius_srv;
 155
 156         int parameter_set_count;
 157
 158 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 159         struct full_dynamic_vlan *full_dynamic_vlan;
 160 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 161
 162         struct l2_packet_data *l2;
 163         struct wps_context *wps;
 164
 165         struct wpabuf *wps_beacon_ie;
 166         struct wpabuf *wps_probe_resp_ie;
 167 #ifdef CONFIG_WPS
 168         unsigned int ap_pin_failures;
 169         struct upnp_wps_device_sm *wps_upnp;
 170         unsigned int ap_pin_lockout_time;
 171 #endif /* CONFIG_WPS */
 172
 173         struct hostapd_probereq_cb *probereq_cb;
 174         size_t num_probereq_cb;
 175
 176         void (*public_action_cb)(void *ctx, const u8 *buf, size_t len,
 177                                  int freq);
 178         void *public_action_cb_ctx;
 179
 180         void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr,
 181                                    const u8 *uuid_e);
 182         void *wps_reg_success_cb_ctx;
 183 };
 184
 185
 186 /**
 187  * struct hostapd_iface - hostapd per-interface data structure
 188  */
 189 struct hostapd_iface {
 190         struct hapd_interfaces *interfaces;
 191         void *owner;
 192         int (*reload_config)(struct hostapd_iface *iface);
 193         struct hostapd_config * (*config_read_cb)(const char *config_fname);
 194         char *config_fname;
 195         struct hostapd_config *conf;
 196
 197         size_t num_bss;
 198         struct hostapd_data **bss;
 199
 200         int num_ap; /* number of entries in ap_list */
 201         struct ap_info *ap_list; /* AP info list head */
 202         struct ap_info *ap_hash[STA_HASH_SIZE];
 203         struct ap_info *ap_iter_list;
 204
 205         struct hostapd_hw_modes *hw_features;
 206         int num_hw_features;
 207         struct hostapd_hw_modes *current_mode;
 208         /* Rates that are currently used (i.e., filtered copy of
 209          * current_mode->channels */
 210         int num_rates;
 211         struct hostapd_rate_data *current_rates;
 212         int freq;
 213
 214         u16 hw_flags;
 215
 216         /* Number of associated Non-ERP stations (i.e., stations using 802.11b
 217          * in 802.11g BSS) */
 218         int num_sta_non_erp;
 219
 220         /* Number of associated stations that do not support Short Slot Time */
 221         int num_sta_no_short_slot_time;
 222
 223         /* Number of associated stations that do not support Short Preamble */
 224         int num_sta_no_short_preamble;
 225
 226         int olbc; /* Overlapping Legacy BSS Condition */
 227
 228         /* Number of HT associated stations that do not support greenfield */
 229         int num_sta_ht_no_gf;
 230
 231         /* Number of associated non-HT stations */
 232         int num_sta_no_ht;
 233
 234         /* Number of HT associated stations 20 MHz */
 235         int num_sta_ht_20mhz;
 236
 237         /* Overlapping BSS information */
 238         int olbc_ht;
 239
 240         u16 ht_op_mode;
 241         void (*scan_cb)(struct hostapd_iface *iface);
 242
 243         int (*ctrl_iface_init)(struct hostapd_data *hapd);
 244         void (*ctrl_iface_deinit)(struct hostapd_data *hapd);
 245
 246         int (*for_each_interface)(struct hapd_interfaces *interfaces,
 247                                   int (*cb)(struct hostapd_iface *iface,
 248                                             void *ctx), void *ctx);
 249 };
 250
 251 /* hostapd.c */
 252 int hostapd_reload_config(struct hostapd_iface *iface);
 253 struct hostapd_data *
 254 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
 255                        struct hostapd_config *conf,
 256                        struct hostapd_bss_config *bss);
 257 int hostapd_setup_interface(struct hostapd_iface *iface);
 258 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
 259 void hostapd_interface_deinit(struct hostapd_iface *iface);
 260 void hostapd_interface_free(struct hostapd_iface *iface);
 261 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
 262                            int reassoc);
 263
 264 /* utils.c */
 265 int hostapd_register_probereq_cb(struct hostapd_data *hapd,
 266                                  int (*cb)(void *ctx, const u8 *sa,
 267                                            const u8 *ie, size_t ie_len),
 268                                  void *ctx);
 269 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr);
 270
 271 /* drv_callbacks.c (TODO: move to somewhere else?) */
 272 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
 273                         const u8 *ie, size_t ielen);
 274 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr);
 275
 276 #endif /* HOSTAPD_H */