fragattacks/hostapd/driver.h
Jouni Malinen 5eb4e3d024 802.11n: scan for overlapping BSSes before starting 20/40 MHz channel
Try to match PRI/SEC channel with neighboring 20/40 MHz BSSes per
IEEE 802.11n/D7.0 11.14.3.2. This is not yet complete implementation,
but at least some parts of the 40 MHz coex are improved.

40 MHz operation maybe rejected (i.e., fall back to using 20 MHz) or
pri/sec channels may be switched if needed.
2009-02-04 21:19:54 +02:00

251 lines
8.8 KiB
C

/*
* hostapd - driver interface definition
* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
* Copyright (c) 2007-2008, Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#ifndef DRIVER_H
#define DRIVER_H
struct hostapd_data;
struct hostap_sta_driver_data {
unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes;
unsigned long current_tx_rate;
unsigned long inactive_msec;
unsigned long flags;
unsigned long num_ps_buf_frames;
unsigned long tx_retry_failed;
unsigned long tx_retry_count;
int last_rssi;
int last_ack_rssi;
};
struct hostapd_sta_add_params {
const u8 *addr;
u16 aid;
u16 capability;
const u8 *supp_rates;
size_t supp_rates_len;
int flags;
u16 listen_interval;
const struct ht_cap_ie *ht_capabilities;
};
struct hostapd_freq_params {
int mode;
int freq;
int ht_enabled;
int sec_channel_offset; /* 0 = HT40 disabled, -1 = HT40 enabled,
* secondary channel below primary, 1 = HT40
* enabled, secondary channel above primary */
};
enum hostapd_driver_if_type {
HOSTAPD_IF_VLAN, HOSTAPD_IF_WDS
};
struct hostapd_neighbor_bss {
u8 bssid[ETH_ALEN];
int freq; /* MHz */
unsigned int ht:1;
int pri_chan;
int sec_chan; /* 0 for 20 MHz channels */
};
struct wpa_driver_ops {
const char *name; /* as appears in the config file */
void * (*init)(struct hostapd_data *hapd);
void * (*init_bssid)(struct hostapd_data *hapd, const u8 *bssid);
void (*deinit)(void *priv);
int (*wireless_event_init)(void *priv);
void (*wireless_event_deinit)(void *priv);
/**
* set_8021x - enable/disable IEEE 802.1X support
* @ifname: Interface name (for multi-SSID/VLAN support)
* @priv: driver private data
* @enabled: 1 = enable, 0 = disable
*
* Returns: 0 on success, -1 on failure
*
* Configure the kernel driver to enable/disable 802.1X support.
* This may be an empty function if 802.1X support is always enabled.
*/
int (*set_ieee8021x)(const char *ifname, void *priv, int enabled);
/**
* set_privacy - enable/disable privacy
* @priv: driver private data
* @enabled: 1 = privacy enabled, 0 = disabled
*
* Return: 0 on success, -1 on failure
*
* Configure privacy.
*/
int (*set_privacy)(const char *ifname, void *priv, int enabled);
int (*set_encryption)(const char *ifname, void *priv, const char *alg,
const u8 *addr, int idx,
const u8 *key, size_t key_len, int txkey);
int (*get_seqnum)(const char *ifname, void *priv, const u8 *addr,
int idx, u8 *seq);
int (*get_seqnum_igtk)(const char *ifname, void *priv, const u8 *addr,
int idx, u8 *seq);
int (*flush)(void *priv);
int (*set_generic_elem)(const char *ifname, void *priv, const u8 *elem,
size_t elem_len);
int (*read_sta_data)(void *priv, struct hostap_sta_driver_data *data,
const u8 *addr);
int (*send_eapol)(void *priv, const u8 *addr, const u8 *data,
size_t data_len, int encrypt, const u8 *own_addr);
int (*sta_deauth)(void *priv, const u8 *addr, int reason);
int (*sta_disassoc)(void *priv, const u8 *addr, int reason);
int (*sta_remove)(void *priv, const u8 *addr);
int (*get_ssid)(const char *ifname, void *priv, u8 *buf, int len);
int (*set_ssid)(const char *ifname, void *priv, const u8 *buf,
int len);
int (*set_countermeasures)(void *priv, int enabled);
int (*send_mgmt_frame)(void *priv, const void *msg, size_t len,
int flags);
int (*set_assoc_ap)(void *priv, const u8 *addr);
/* note: sta_add() is deprecated; use sta_add2() instead */
int (*sta_add)(const char *ifname, void *priv, const u8 *addr, u16 aid,
u16 capability, u8 *supp_rates, size_t supp_rates_len,
int flags, u16 listen_interval);
int (*sta_add2)(const char *ifname, void *priv,
struct hostapd_sta_add_params *params);
int (*get_inact_sec)(void *priv, const u8 *addr);
int (*sta_clear_stats)(void *priv, const u8 *addr);
/* note: set_freq() is deprecated; use set_freq2() instead */
int (*set_freq)(void *priv, int mode, int freq);
int (*set_freq2)(void *priv, struct hostapd_freq_params *freq);
int (*set_rts)(void *priv, int rts);
int (*get_rts)(void *priv, int *rts);
int (*set_frag)(void *priv, int frag);
int (*get_frag)(void *priv, int *frag);
int (*set_retry)(void *priv, int short_retry, int long_retry);
int (*get_retry)(void *priv, int *short_retry, int *long_retry);
int (*sta_set_flags)(void *priv, const u8 *addr,
int total_flags, int flags_or, int flags_and);
int (*set_rate_sets)(void *priv, int *supp_rates, int *basic_rates,
int mode);
int (*set_country)(void *priv, const char *country);
int (*set_ieee80211d)(void *priv, int enabled);
int (*set_beacon)(const char *ifname, void *priv,
u8 *head, size_t head_len,
u8 *tail, size_t tail_len);
/* Configure internal bridge:
* 0 = disabled, i.e., client separation is enabled (no bridging of
* packets between associated STAs
* 1 = enabled, i.e., bridge packets between associated STAs (default)
*/
int (*set_internal_bridge)(void *priv, int value);
int (*set_beacon_int)(void *priv, int value);
int (*set_dtim_period)(const char *ifname, void *priv, int value);
/* Configure broadcast SSID mode:
* 0 = include SSID in Beacon frames and reply to Probe Request frames
* that use broadcast SSID
* 1 = hide SSID from Beacon frames and ignore Probe Request frames for
* broadcast SSID
*/
int (*set_broadcast_ssid)(void *priv, int value);
int (*set_cts_protect)(void *priv, int value);
int (*set_key_tx_rx_threshold)(void *priv, int value);
int (*set_preamble)(void *priv, int value);
int (*set_short_slot_time)(void *priv, int value);
int (*set_tx_queue_params)(void *priv, int queue, int aifs, int cw_min,
int cw_max, int burst_time);
int (*bss_add)(void *priv, const char *ifname, const u8 *bssid);
int (*bss_remove)(void *priv, const char *ifname);
int (*valid_bss_mask)(void *priv, const u8 *addr, const u8 *mask);
int (*passive_scan)(void *priv, int now, int our_mode_only,
int interval, int _listen, int *channel,
int *last_rx);
struct hostapd_hw_modes * (*get_hw_feature_data)(void *priv,
u16 *num_modes,
u16 *flags);
int (*if_add)(const char *iface, void *priv,
enum hostapd_driver_if_type type, char *ifname,
const u8 *addr);
int (*if_update)(void *priv, enum hostapd_driver_if_type type,
char *ifname, const u8 *addr);
int (*if_remove)(void *priv, enum hostapd_driver_if_type type,
const char *ifname, const u8 *addr);
int (*set_sta_vlan)(void *priv, const u8 *addr, const char *ifname,
int vlan_id);
/**
* commit - Optional commit changes handler
* @priv: driver private data
* Returns: 0 on success, -1 on failure
*
* This optional handler function can be registered if the driver
* interface implementation needs to commit changes (e.g., by setting
* network interface up) at the end of initial configuration. If set,
* this handler will be called after initial setup has been completed.
*/
int (*commit)(void *priv);
int (*send_ether)(void *priv, const u8 *dst, const u8 *src, u16 proto,
const u8 *data, size_t data_len);
int (*set_radius_acl_auth)(void *priv, const u8 *mac, int accepted,
u32 session_timeout);
int (*set_radius_acl_expire)(void *priv, const u8 *mac);
int (*set_ht_params)(const char *ifname, void *priv,
const u8 *ht_capab, size_t ht_capab_len,
const u8 *ht_oper, size_t ht_oper_len);
int (*set_wps_beacon_ie)(const char *ifname, void *priv,
const u8 *ie, size_t len);
int (*set_wps_probe_resp_ie)(const char *ifname, void *priv,
const u8 *ie, size_t len);
const struct hostapd_neighbor_bss *
(*get_neighbor_bss)(void *priv, size_t *num);
};
void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
int reassoc);
void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr,
const u8 *buf, size_t len, int ack);
void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd, const u8 *addr);
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *ie, size_t ielen);
void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr);
void hostapd_eapol_receive(struct hostapd_data *hapd, const u8 *sa,
const u8 *buf, size_t len);
struct hostapd_frame_info {
u32 phytype;
u32 channel;
u32 datarate;
u32 ssi_signal;
unsigned int passive_scan:1;
};
void hostapd_mgmt_rx(struct hostapd_data *hapd, u8 *buf, size_t len,
u16 stype, struct hostapd_frame_info *fi);
void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, u8 *buf, size_t len,
u16 stype, int ok);
void hostapd_michael_mic_failure(struct hostapd_data *hapd, const u8 *addr);
#endif /* DRIVER_H */