802.11n: scan for overlapping BSSes before starting 20/40 MHz channel

[wpasupplicant] / hostapd / driver.h

diff --git a/hostapd/driver.h b/hostapd/driver.h
index ba89c12..3ea019e 100644 (file)
--- a/hostapd/driver.h
+++ b/hostapd/driver.h
@@ -54,6 +54,14 @@ 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 */
 
@@ -208,6 +216,9 @@ struct wpa_driver_ops {
                                 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,