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RSNO: Skip validating RSN Override elements with MLO when RSN overriding not used

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STA needs to skip validating RSN Override elements when RSN overriding
is not used since AP will not send RSN Override elements in EAPOL-Key
message 3/4. This is handled correctly in non-MLO case but in MLO case
wpa_supplicant always validates RSN Override link KDEs. Fix validating
RSN Override elements in MLO case as well.

Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
This commit is contained in:
Veerendranath Jakkam 2024-08-13 23:02:55 +05:30 committed by Jouni Malinen
parent 66d8ac8ccc
commit bbb55af8c3
1 changed files with 23 additions and 20 deletions
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43
src/rsn_supp/wpa.c
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@ -2500,26 +2500,6 @@ static int wpa_supplicant_validate_link_kde(struct wpa_sm *sm, u8 link_id,
rsnxe_len = rsnxe[1] + 2;
}
if (rsn_override_link_kde) {
rsnoe = get_vendor_ie(rsn_override_link_kde + 1,
rsn_override_link_kde_len - 1,
RSNE_OVERRIDE_IE_VENDOR_TYPE);
if (rsnoe)
rsnoe_len = 2 + rsnoe[1];
rsno2e = get_vendor_ie(rsn_override_link_kde + 1,
rsn_override_link_kde_len - 1,
RSNE_OVERRIDE_2_IE_VENDOR_TYPE);
if (rsno2e)
rsno2e_len = 2 + rsno2e[1];
rsnxoe = get_vendor_ie(rsn_override_link_kde + 1,
rsn_override_link_kde_len - 1,
RSNXE_OVERRIDE_IE_VENDOR_TYPE);
if (rsnxoe)
rsnxoe_len = 2 + rsnxoe[1];
}
if (wpa_compare_rsn_ie(wpa_key_mgmt_ft(sm->key_mgmt),
sm->mlo.links[link_id].ap_rsne,
sm->mlo.links[link_id].ap_rsne_len,
@ -2552,6 +2532,29 @@ static int wpa_supplicant_validate_link_kde(struct wpa_sm *sm, u8 link_id,
goto fail;
}
if (sm->rsn_override == RSN_OVERRIDE_NOT_USED)
return 0;
if (rsn_override_link_kde) {
rsnoe = get_vendor_ie(rsn_override_link_kde + 1,
rsn_override_link_kde_len - 1,
RSNE_OVERRIDE_IE_VENDOR_TYPE);
if (rsnoe)
rsnoe_len = 2 + rsnoe[1];
rsno2e = get_vendor_ie(rsn_override_link_kde + 1,
rsn_override_link_kde_len - 1,
RSNE_OVERRIDE_2_IE_VENDOR_TYPE);
if (rsno2e)
rsno2e_len = 2 + rsno2e[1];
rsnxoe = get_vendor_ie(rsn_override_link_kde + 1,
rsn_override_link_kde_len - 1,
RSNXE_OVERRIDE_IE_VENDOR_TYPE);
if (rsnxoe)
rsnxoe_len = 2 + rsnxoe[1];
}
if ((sm->mlo.links[link_id].ap_rsnoe && !rsnoe) ||
(!sm->mlo.links[link_id].ap_rsnoe && rsnoe) ||
(sm->mlo.links[link_id].ap_rsnoe && rsnoe &&