File wpa_supplicant-git-fa67debf4c6ddbc881a212b175fa... of Package wpa_supplicant

Overview Repositories Revisions Requests Users Attributes Meta

File wpa_supplicant-git-fa67debf4c6ddbc881a212b175faa6d5d0d90c8c.patch of Package wpa_supplicant (Revision b27e1fa07c87d7120440ca8fd7ae263b)

Currently displaying revision b27e1fa07c87d7120440ca8fd7ae263b , Show latest

commit fa67debf4c6ddbc881a212b175faa6d5d0d90c8c
Author: Jouni Malinen <jouni@qca.qualcomm.com>
Date:   Sat Jan 14 01:04:31 2017 +0200

Fix duplicate Reassociation Request frame dropping
    
    Relational operators (==) have higher precedence than the ternary
    conditional in C. The last_subtype check for association/reassociation
    was broken due to incorrect assumption about the precedence. Fix this by
    adding parenthesis around the ternary conditional.
    
    The previous implementation worked for Association Request frames by
    accident since WLAN_FC_STYPE_ASSOC_REQ happens to have value 0 and when
    the last receive frame was an Association Request frame, the
    sta->last_subtype == reassoc check was true and non-zero
    WLAN_FC_STYPE_REASSOC_REQ was interpreted as true. However, this was
    broken for Reassociation Request frame. reassoc == 1 in that case could
    have matched received Association Response frame (subtype == 1), but
    those are not received in AP mode and as such, this did not break other
    behavior apart from not being able to drop duplicated Reassociation
    Request frames.
    
    Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
index 060b63517..92a7ec6db 100644
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -2527,8 +2527,8 @@ static void handle_assoc(struct hostapd_data *hapd,
 	if ((fc & WLAN_FC_RETRY) &&
 	    sta->last_seq_ctrl != WLAN_INVALID_MGMT_SEQ &&
 	    sta->last_seq_ctrl == seq_ctrl &&
-	    sta->last_subtype == reassoc ? WLAN_FC_STYPE_REASSOC_REQ :
-	    WLAN_FC_STYPE_ASSOC_REQ) {
+	    sta->last_subtype == (reassoc ? WLAN_FC_STYPE_REASSOC_REQ :
+				  WLAN_FC_STYPE_ASSOC_REQ)) {
 		hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 			       HOSTAPD_LEVEL_DEBUG,
 			       "Drop repeated association frame seq_ctrl=0x%x",

Places

File wpa_supplicant-git-fa67debf4c6ddbc881a212b175faa6d5d0d90c8c.patch of Package wpa_supplicant (Revision b27e1fa07c87d7120440ca8fd7ae263b)

Places