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FILS: Fix NSS calculation for HE mode

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Maximum NSS calculation for HE mode checks if both Tx and Rx support
a given NSS. Modify it to instead check if either of these two support
the given NSS.

Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
This commit is contained in:
Aloka Dixit 2023-07-24 16:16:25 -07:00 committed by Jouni Malinen
parent fcbb643ff3
commit 26f29ef46d
1 changed files with 14 additions and 12 deletions
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26
src/ap/beacon.c
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@ -1425,27 +1425,29 @@ static u16 hostapd_gen_fils_discovery_nss(struct hostapd_hw_modes *mode,
u16 nss_mask = 0x3 << (i * 2);
/*
* If NSS values supported by RX and TX are different
* then choose the smaller of the two as the maximum
* supported NSS as that is the value supported by
* both RX and TX.
* If Tx and/or Rx indicate support for a given NSS,
* count it towards the maximum NSS.
*/
if (he_mcs_nss_size == 4 &&
(((mcs[0] & nss_mask) == nss_mask) ||
((mcs[1] & nss_mask) == nss_mask)))
(((mcs[0] & nss_mask) != nss_mask) ||
((mcs[1] & nss_mask) != nss_mask))) {
nss++;
continue;
}
if (he_mcs_nss_size == 8 &&
(((mcs[2] & nss_mask) == nss_mask) ||
((mcs[3] & nss_mask) == nss_mask)))
(((mcs[2] & nss_mask) != nss_mask) ||
((mcs[3] & nss_mask) != nss_mask))) {
nss++;
continue;
}
if (he_mcs_nss_size == 12 &&
(((mcs[4] & nss_mask) == nss_mask) ||
((mcs[5] & nss_mask) == nss_mask)))
(((mcs[4] & nss_mask) != nss_mask) ||
((mcs[5] & nss_mask) != nss_mask))) {
nss++;
continue;
nss++;
}
}
}