20ed289a78
When receiving a BTM request, wpa_supplicant would try to fetch new results from the driver, and, independently of that, would also process the latest scan results that were partially updated by the previous fetch. Simplify the logic by using wpa_supplicant_get_scan_results() directly and then process the old scan data as usual. However, this data may be outdated, so add a new heuristic to avoid roaming to a BSS if it is either outdated or bad. Doing this moves all scan data processing into wnm_scan_process() and removes duplicated functionality for scan result processing in scan.c. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
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* IEEE 802.11v WNM related functions and structures
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* Copyright (c) 2011-2012, Qualcomm Atheros, Inc.
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef WNM_STA_H
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#define WNM_STA_H
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struct measurement_pilot {
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u8 measurement_pilot;
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u8 subelem_len;
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u8 subelems[255];
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};
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struct multiple_bssid {
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u8 max_bssid_indicator;
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u8 subelem_len;
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u8 subelems[255];
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};
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struct neighbor_report {
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u8 bssid[ETH_ALEN];
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u32 bssid_info;
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u8 regulatory_class;
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u8 channel_number;
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u8 phy_type;
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u8 preference; /* valid if preference_present=1 */
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u16 tsf_offset; /* valid if tsf_present=1 */
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u16 beacon_int; /* valid if tsf_present=1 */
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char country[2]; /* valid if country_present=1 */
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u8 rm_capab[5]; /* valid if rm_capab_present=1 */
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u16 bearing; /* valid if bearing_present=1 */
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u16 rel_height; /* valid if bearing_present=1 */
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u32 distance; /* valid if bearing_present=1 */
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u64 bss_term_tsf; /* valid if bss_term_present=1 */
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u16 bss_term_dur; /* valid if bss_term_present=1 */
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unsigned int disassoc_imminent:1;
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unsigned int preference_present:1;
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unsigned int tsf_present:1;
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unsigned int country_present:1;
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unsigned int rm_capab_present:1;
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unsigned int bearing_present:1;
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unsigned int bss_term_present:1;
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unsigned int acceptable:1;
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#ifdef CONFIG_MBO
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unsigned int is_first:1;
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#endif /* CONFIG_MBO */
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struct measurement_pilot *meas_pilot;
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struct multiple_bssid *mul_bssid;
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int freq;
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};
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int ieee802_11_send_wnmsleep_req(struct wpa_supplicant *wpa_s,
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u8 action, u16 intval, struct wpabuf *tfs_req);
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void ieee802_11_rx_wnm_action(struct wpa_supplicant *wpa_s,
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const struct ieee80211_mgmt *mgmt, size_t len);
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int wnm_send_bss_transition_mgmt_query(struct wpa_supplicant *wpa_s,
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u8 query_reason,
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const char *btm_candidates,
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int cand_list);
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void wnm_deallocate_memory(struct wpa_supplicant *wpa_s);
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int wnm_send_coloc_intf_report(struct wpa_supplicant *wpa_s, u8 dialog_token,
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const struct wpabuf *elems);
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void wnm_set_coloc_intf_elems(struct wpa_supplicant *wpa_s,
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struct wpabuf *elems);
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bool wnm_is_bss_excluded(struct wpa_supplicant *wpa_s, struct wpa_bss *bss);
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#ifdef CONFIG_WNM
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int wnm_scan_process(struct wpa_supplicant *wpa_s, bool pre_scan_check);
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void wnm_clear_coloc_intf_reporting(struct wpa_supplicant *wpa_s);
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#else /* CONFIG_WNM */
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static inline int wnm_scan_process(struct wpa_supplicant *wpa_s,
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int reply_on_fail)
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{
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return 0;
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}
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static inline void wnm_clear_coloc_intf_reporting(struct wpa_supplicant *wpa_s)
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{
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}
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#endif /* CONFIG_WNM */
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#endif /* WNM_STA_H */
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