| From b039d88e5924a340709646c5e855bc06fcb1da78 Mon Sep 17 00:00:00 2001 |
| From: MeiChia Chiu <MeiChia.Chiu@mediatek.com> |
| Date: Thu, 4 Jul 2024 13:37:23 +0800 |
| Subject: [PATCH 111/126] mtk: hostapd: Fix the op_class value in the RNR IE to |
| achieve backward compatibility |
| |
| According to the chapter 11.49 Reduced neighbor report |
| of DraftP802.11be_D5.1, the AP should select (one of) the operating |
| class(es) that is expected to be understood by all STAs that might |
| intend to connect to the reported AP, even if the channel spacing of |
| that operating class is less than the BSS bandwidth of all the reported |
| APs in the Neighbor AP Information field. |
| |
| For example, if an AP reports an EHT AP that is operating a BSS with 320 |
| MHz bandwidth in 6 GHz band using operating class 137, it is recommended |
| that the operating class selected by the AP in the Reduced Neighbor Report |
| element is operating class 131, 132, 133 or 134, since these are expected |
| to be understood by all STAs that can connect to the reported 6GHz AP. |
| |
| Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com> |
| Signed-off-by: Money Wang <money.wang@mediatek.com> |
| Signed-off-by: MeiChia Chiu <MeiChia.Chiu@mediatek.com> |
| --- |
| src/ap/ieee802_11.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c |
| index 62fdfb288..75ffb2a18 100644 |
| --- a/src/ap/ieee802_11.c |
| +++ b/src/ap/ieee802_11.c |
| @@ -7841,7 +7841,7 @@ static bool hostapd_eid_rnr_bss(struct hostapd_data *hapd, |
| * one TBTT info available. */ |
| *tbtt_count_pos = eid++; |
| *eid++ = tbtt_info_len; |
| - *eid++ = op_class; |
| + *eid++ = (op_class == 137 ? 134 : op_class); |
| *eid++ = bss->iconf->channel; |
| *len += RNR_TBTT_HEADER_LEN; |
| } |
| -- |
| 2.18.0 |
| |