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Support multiple 20/40 BSS Intolerant Channel Report elements

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This extends 20/40 BSS Coexistence Management frame processing to
iterate over all the included 20/40 BSS Intolerant Channel Report
elements instead of using only the first one.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2018-03-21 16:43:54 +02:00 committed by Jouni Malinen
parent 8127a0ac02
commit 8cbd9c3ed4
1 changed files with 4 additions and 2 deletions
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6
src/ap/ieee802_11_ht.c
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@ -313,8 +313,8 @@ void hostapd_2040_coex_action(struct hostapd_data *hapd,
} }
/* 20/40 BSS Intolerant Channel Report element (zero or more times) */ /* 20/40 BSS Intolerant Channel Report element (zero or more times) */
if (start + len - data >= 3 && while (start + len - data >= 3 &&
data[0] == WLAN_EID_20_40_BSS_INTOLERANT && data[1] >= 1) { data[0] == WLAN_EID_20_40_BSS_INTOLERANT && data[1] >= 1) {
u8 ielen = data[1]; u8 ielen = data[1];
if (ielen > start + len - data - 2) { if (ielen > start + len - data - 2) {
@ -341,6 +341,8 @@ void hostapd_2040_coex_action(struct hostapd_data *hapd,
chan); chan);
is_ht40_allowed = 0; is_ht40_allowed = 0;
} }
data += 2 + ielen;
} }
wpa_printf(MSG_DEBUG, "is_ht40_allowed=%d num_sta_ht40_intolerant=%d", wpa_printf(MSG_DEBUG, "is_ht40_allowed=%d num_sta_ht40_intolerant=%d",
is_ht40_allowed, iface->num_sta_ht40_intolerant); is_ht40_allowed, iface->num_sta_ht40_intolerant);