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FILS: Add FILS Indication element to Beacon and Probe Response frames

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If FILS is enabled, indicate that in AP Beacon/Probe Response frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-09-01 19:33:32 +03:00 • committed by Jouni Malinen
parent 9b7a2b836a
commit 198a942c83
3 changed files with 54 additions and 0 deletions
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42
src/ap/ieee802_11_shared.c
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@ -584,3 +584,45 @@ void ap_copy_sta_supp_op_classes(struct sta_info *sta,
os_memcpy(sta->supp_op_classes + 1, supp_op_classes,
supp_op_classes_len);
}
u8 * hostapd_eid_fils_indic(struct hostapd_data *hapd, u8 *eid, int hessid)
{
u8 *pos = eid;
#ifdef CONFIG_FILS
u8 *len;
u16 fils_info = 0;
if (!(hapd->conf->wpa & WPA_PROTO_RSN) ||
!wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt))
return pos;
*pos++ = WLAN_EID_FILS_INDICATION;
len = pos++;
/* TODO: B0..B2: Number of Public Key Identifiers */
/* TODO: B3..B5: Number of Realm Identifiers */
/* TODO: B6: FILS IP Address Configuration */
if (hapd->conf->fils_cache_id_set)
fils_info |= BIT(7);
if (hessid && !is_zero_ether_addr(hapd->conf->hessid))
fils_info |= BIT(8); /* HESSID Included */
/* FILS Shared Key Authentication without PFS Supported */
fils_info |= BIT(9);
/* TODO: B10: FILS Shared Key Authentication with PFS Supported */
/* TODO: B11: FILS Public Key Authentication Supported */
/* B12..B15: Reserved */
WPA_PUT_LE16(pos, fils_info);
pos += 2;
if (hapd->conf->fils_cache_id_set) {
os_memcpy(pos, hapd->conf->fils_cache_id, FILS_CACHE_ID_LEN);
pos += FILS_CACHE_ID_LEN;
}
if (hessid && !is_zero_ether_addr(hapd->conf->hessid)) {
os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
pos += ETH_ALEN;
}
*len = pos - len - 1;
#endif /* CONFIG_FILS */
return pos;
}