diff --git a/src/drivers/driver_nl80211.h b/src/drivers/driver_nl80211.h index 802589aa7..64c4665de 100644 --- a/src/drivers/driver_nl80211.h +++ b/src/drivers/driver_nl80211.h @@ -270,5 +270,6 @@ int wpa_driver_nl80211_sched_scan(void *priv, int wpa_driver_nl80211_stop_sched_scan(void *priv); struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv); void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv); +const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie); #endif /* DRIVER_NL80211_H */ diff --git a/src/drivers/driver_nl80211_event.c b/src/drivers/driver_nl80211_event.c index a5b323026..8cebfb256 100644 --- a/src/drivers/driver_nl80211_event.c +++ b/src/drivers/driver_nl80211_event.c @@ -271,6 +271,7 @@ static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, struct nlattr *ptk_kek) { union wpa_event_data event; + const u8 *ssid; u16 status_code; if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { @@ -331,6 +332,16 @@ static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, if (req_ie) { event.assoc_info.req_ies = nla_data(req_ie); event.assoc_info.req_ies_len = nla_len(req_ie); + + if (cmd == NL80211_CMD_ROAM) { + ssid = nl80211_get_ie(event.assoc_info.req_ies, + event.assoc_info.req_ies_len, + WLAN_EID_SSID); + if (ssid && ssid[1] > 0 && ssid[1] <= 32) { + drv->ssid_len = ssid[1]; + os_memcpy(drv->ssid, ssid + 2, ssid[1]); + } + } } if (resp_ie) { event.assoc_info.resp_ies = nla_data(resp_ie); diff --git a/src/drivers/driver_nl80211_scan.c b/src/drivers/driver_nl80211_scan.c index 3911f485f..9cd3162ff 100644 --- a/src/drivers/driver_nl80211_scan.c +++ b/src/drivers/driver_nl80211_scan.c @@ -433,7 +433,7 @@ int wpa_driver_nl80211_stop_sched_scan(void *priv) } -static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) +const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) { const u8 *end, *pos; diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c index 3adb95427..b10f583cd 100644 --- a/wpa_supplicant/events.c +++ b/wpa_supplicant/events.c @@ -158,11 +158,32 @@ static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s) static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) { struct wpa_ssid *ssid, *old_ssid; + u8 drv_ssid[MAX_SSID_LEN]; + size_t drv_ssid_len; int res; if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) { wpa_supplicant_update_current_bss(wpa_s); - return 0; + + if (wpa_s->current_ssid->ssid_len == 0) + return 0; /* current profile still in use */ + res = wpa_drv_get_ssid(wpa_s, drv_ssid); + if (res < 0) { + wpa_msg(wpa_s, MSG_INFO, + "Failed to read SSID from driver"); + return 0; /* try to use current profile */ + } + drv_ssid_len = res; + + if (drv_ssid_len == wpa_s->current_ssid->ssid_len && + os_memcmp(drv_ssid, wpa_s->current_ssid->ssid, + drv_ssid_len) == 0) + return 0; /* current profile still in use */ + + wpa_msg(wpa_s, MSG_DEBUG, + "Driver-initiated BSS selection changed the SSID to %s", + wpa_ssid_txt(drv_ssid, drv_ssid_len)); + /* continue selecting a new network profile */ } wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "