hostapd/wpa_supplicant/sme.h
Sergey Matyukevich 3204795d7a STA OBSS: Add check for overlapping BSSs
In the previous implementation connected STA performs OBSS scan
according to requests from its 20/40 MHz AP. However STA checks only 40
MHz intolerance subfield from HT Capabilities element in scan results.
Meanwhile, as per IEEE Std 802.11-2016, 11.16.12, STA should check
overlapping BSSs as well.

Note that all the required code to check overlapping BSSs did already
exist for AP mode since AP does those checks properly before operating
as 20/40 MHz BSS in the 2.4 GHz band. Use that existing code by replace
existing 40 MHz intolerance check in sme_proc_obss_scan() with the new
shared helper function check_bss_coex_40mhz().

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
2019-12-26 11:41:01 +02:00

139 lines
3.8 KiB
C

/*
* wpa_supplicant - SME
* Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef SME_H
#define SME_H
#ifdef CONFIG_SME
void sme_authenticate(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_ssid *ssid);
void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
const u8 *bssid, u16 auth_type);
void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data);
int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
const u8 *ies, size_t ies_len);
void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
union wpa_event_data *data);
void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
union wpa_event_data *data);
void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
union wpa_event_data *data);
void sme_event_disassoc(struct wpa_supplicant *wpa_s,
struct disassoc_info *info);
void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
const u8 *da, u16 reason_code);
void sme_event_ch_switch(struct wpa_supplicant *wpa_s);
void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
const u8 *data, size_t len);
void sme_state_changed(struct wpa_supplicant *wpa_s);
void sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
const u8 *prev_pending_bssid);
void sme_clear_on_disassoc(struct wpa_supplicant *wpa_s);
void sme_deinit(struct wpa_supplicant *wpa_s);
int sme_proc_obss_scan(struct wpa_supplicant *wpa_s,
struct wpa_scan_results *scan_res);
void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable);
void sme_external_auth_trigger(struct wpa_supplicant *wpa_s,
union wpa_event_data *data);
void sme_external_auth_mgmt_rx(struct wpa_supplicant *wpa_s,
const u8 *auth_frame, size_t len);
#else /* CONFIG_SME */
static inline void sme_authenticate(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss,
struct wpa_ssid *ssid)
{
}
static inline void sme_event_auth(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
}
static inline int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
const u8 *ies, size_t ies_len)
{
return -1;
}
static inline void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
}
static inline void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
}
static inline void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
}
static inline void sme_event_disassoc(struct wpa_supplicant *wpa_s,
struct disassoc_info *info)
{
}
static inline void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s,
const u8 *sa, const u8 *da,
u16 reason_code)
{
}
static inline void sme_event_ch_switch(struct wpa_supplicant *wpa_s)
{
}
static inline void sme_state_changed(struct wpa_supplicant *wpa_s)
{
}
static inline void
sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
const u8 *prev_pending_bssid)
{
}
static inline void sme_clear_on_disassoc(struct wpa_supplicant *wpa_s)
{
}
static inline void sme_deinit(struct wpa_supplicant *wpa_s)
{
}
static inline int sme_proc_obss_scan(struct wpa_supplicant *wpa_s,
struct wpa_scan_results *scan_res)
{
return 0;
}
static inline void sme_sched_obss_scan(struct wpa_supplicant *wpa_s,
int enable)
{
}
static inline void sme_external_auth_trigger(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
}
static inline void sme_external_auth_mgmt_rx(struct wpa_supplicant *wpa_s,
const u8 *auth_frame, size_t len)
{
}
#endif /* CONFIG_SME */
#endif /* SME_H */