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MLO: Add MLO KDEs to EAPOL-Key msg 1/2 of the group handshake

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This provides the link specific group keys and last used PN/IPN/BIPN
values to the Supplicant in the MLO KDEs instead of the KDEs used for
non-MLO cases.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
This commit is contained in:
Ilan Peer 2023-05-22 22:34:04 +03:00 committed by Jouni Malinen
parent 79212e93f7
commit d5e93c8043
1 changed files with 20 additions and 2 deletions
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22
src/ap/wpa_auth.c
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@ -4628,11 +4628,16 @@ SM_STATE(WPA_PTK_GROUP, REKEYNEGOTIATING)
{
u8 rsc[WPA_KEY_RSC_LEN];
struct wpa_group *gsm = sm->group;
const u8 *kde;
const u8 *kde = NULL;
u8 *kde_buf = NULL, *pos, hdr[2];
size_t kde_len = 0;
u8 *gtk, stub_gtk[32];
struct wpa_auth_config *conf = &sm->wpa_auth->conf;
bool is_mld = false;
#ifdef CONFIG_IEEE80211BE
is_mld = sm->mld_assoc_link_id >= 0;
#endif /* CONFIG_IEEE80211BE */
SM_ENTRY_MA(WPA_PTK_GROUP, REKEYNEGOTIATING, wpa_ptk_group);
@ -4667,7 +4672,8 @@ SM_STATE(WPA_PTK_GROUP, REKEYNEGOTIATING)
return;
gtk = stub_gtk;
}
if (sm->wpa == WPA_VERSION_WPA2) {
if (sm->wpa == WPA_VERSION_WPA2 && !is_mld) {
kde_len = 2 + RSN_SELECTOR_LEN + 2 + gsm->GTK_len +
ieee80211w_kde_len(sm) + ocv_oci_len(sm);
kde_buf = os_malloc(kde_len);
@ -4686,6 +4692,18 @@ SM_STATE(WPA_PTK_GROUP, REKEYNEGOTIATING)
return;
}
kde_len = pos - kde;
#ifdef CONFIG_IEEE80211BE
} else if (sm->wpa == WPA_VERSION_WPA2 && is_mld) {
kde_len = wpa_auth_ml_group_kdes_len(sm);
if (kde_len) {
kde_buf = os_malloc(kde_len);
if (!kde_buf)
return;
kde = pos = kde_buf;
wpa_auth_ml_group_kdes(sm, pos);
}
#endif /* CONFIG_IEEE80211BE */
} else {
kde = gtk;
kde_len = gsm->GTK_len;