jeltz/hostap
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Ignore intra-BSS 20/40 BSS Coexistence Management from not-associated STA

Browse source 
The 20 MHz BSS Width Request field is set to 1 only for intra-BSS
reports. As such, ignore the frame if such a claim is made by a
transmitter that is not currently associated with the AP.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2018-03-21 16:35:15 +02:00 committed by Jouni Malinen
parent 8aa599d45a
commit 8127a0ac02
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/ap/ieee802_11_ht.c
View file

@ -236,6 +236,7 @@ void hostapd_2040_coex_action(struct hostapd_data *hapd,
int i; int i;
const u8 *start = (const u8 *) mgmt; const u8 *start = (const u8 *) mgmt;
const u8 *data = start + IEEE80211_HDRLEN + 2; const u8 *data = start + IEEE80211_HDRLEN + 2;
struct sta_info *sta;
wpa_printf(MSG_DEBUG, wpa_printf(MSG_DEBUG,
"HT: Received 20/40 BSS Coexistence Management frame from " "HT: Received 20/40 BSS Coexistence Management frame from "
@ -287,6 +288,13 @@ void hostapd_2040_coex_action(struct hostapd_data *hapd,
if (bc_ie->coex_param & WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ) { if (bc_ie->coex_param & WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ) {
/* Intra-BSS communication prohibiting 20/40 MHz BSS operation /* Intra-BSS communication prohibiting 20/40 MHz BSS operation
*/ */
sta = ap_get_sta(hapd, mgmt->sa);
if (!sta || !(sta->flags & WLAN_STA_ASSOC)) {
wpa_printf(MSG_DEBUG,
"Ignore intra-BSS 20/40 BSS Coexistence Management frame from not-associated STA");
return;
}
hostapd_logger(hapd, mgmt->sa, hostapd_logger(hapd, mgmt->sa,
HOSTAPD_MODULE_IEEE80211, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, HOSTAPD_LEVEL_DEBUG,