From 04e3d8156a7d6f2fa888b465d59d26dadd5d20ac Mon Sep 17 00:00:00 2001 From: Mikael Kanstrup Date: Tue, 20 Sep 2016 08:40:07 +0200 Subject: [PATCH] Blacklist correct BSSID on authentication timeout If authentication times out while reassociating to same ESS incorrect BSSID may end up being blacklisted. Use pending_bssid field on authentication timeout and deauthentication to ensure the correct AP gets blacklisted. This is mainly to address cases related to Android framework roaming behavior. Signed-off-by: Mikael Kanstrup --- wpa_supplicant/wpa_supplicant.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c index 0785576..df18c0c 100644 --- a/wpa_supplicant/wpa_supplicant.c +++ b/wpa_supplicant/wpa_supplicant.c @@ -192,7 +192,9 @@ static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) { struct wpa_supplicant *wpa_s = eloop_ctx; const u8 *bssid = wpa_s->bssid; - if (is_zero_ether_addr(bssid)) + if (!is_zero_ether_addr(wpa_s->pending_bssid) && + (wpa_s->wpa_state == WPA_AUTHENTICATING || + wpa_s->wpa_state == WPA_ASSOCIATING)) bssid = wpa_s->pending_bssid; wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", MAC2STR(bssid)); @@ -2173,7 +2175,10 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit) } else { wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); - os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); + if (bss) + os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); + else + os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); } if (!wpa_s->pno) wpa_supplicant_cancel_sched_scan(wpa_s); @@ -2702,12 +2707,12 @@ void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state)); - if (!is_zero_ether_addr(wpa_s->bssid)) - addr = wpa_s->bssid; - else if (!is_zero_ether_addr(wpa_s->pending_bssid) && - (wpa_s->wpa_state == WPA_AUTHENTICATING || - wpa_s->wpa_state == WPA_ASSOCIATING)) + if (!is_zero_ether_addr(wpa_s->pending_bssid) && + (wpa_s->wpa_state == WPA_AUTHENTICATING || + wpa_s->wpa_state == WPA_ASSOCIATING)) addr = wpa_s->pending_bssid; + else if (!is_zero_ether_addr(wpa_s->bssid)) + addr = wpa_s->bssid; else if (wpa_s->wpa_state == WPA_ASSOCIATING) { /* * When using driver-based BSS selection, we may not know the -- 2.1.4