Add Key Length field into IGTK sub-element (FTIE) per 802.11w/D7.0

[libeap.git] / hostapd / wpa_ft.c

diff --git a/hostapd/wpa_ft.c b/hostapd/wpa_ft.c
index 8c36df9..9cf6713 100644 (file)
--- a/hostapd/wpa_ft.c
+++ b/hostapd/wpa_ft.c
@@ -444,8 +444,9 @@ static u8 * wpa_ft_igtk_subelem(struct wpa_state_machine *sm, size_t *len)
        struct wpa_group *gsm = sm->group;
        size_t subelem_len;
 
-       /* Sub-elem ID[1] | Length[1] | KeyID[2] | PN[6] | Key[16+8] */
-       subelem_len = 1 + 1 + 2 + 6 + WPA_IGTK_LEN + 8;
+       /* Sub-elem ID[1] | Length[1] | KeyID[2] | IPN[6] | Key Length[1] |
+        * Key[16+8] */
+       subelem_len = 1 + 1 + 2 + 6 + 1 + WPA_IGTK_LEN + 8;
        subelem = os_zalloc(subelem_len);
        if (subelem == NULL)
                return NULL;
@@ -457,6 +458,7 @@ static u8 * wpa_ft_igtk_subelem(struct wpa_state_machine *sm, size_t *len)
        pos += 2;
        wpa_auth_get_seqnum_igtk(sm->wpa_auth, NULL, gsm->GN_igtk, pos);
        pos += 6;
+       *pos++ = WPA_IGTK_LEN;
        if (aes_wrap(sm->PTK.kek, WPA_IGTK_LEN / 8,
                     gsm->IGTK[gsm->GN_igtk - 4], pos)) {
                os_free(subelem);