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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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10
src/ap/beacon.c
View file

@ -491,6 +491,11 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
pos = hostapd_eid_txpower_envelope(hapd, pos);
pos = hostapd_eid_wb_chsw_wrapper(hapd, pos);
}
#endif /* CONFIG_IEEE80211AC */
pos = hostapd_eid_fils_indic(hapd, pos, 0);
#ifdef CONFIG_IEEE80211AC
if (hapd->conf->vendor_vht)
pos = hostapd_eid_vendor_vht(hapd, pos);
#endif /* CONFIG_IEEE80211AC */
@ -1155,6 +1160,11 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
tailpos = hostapd_eid_txpower_envelope(hapd, tailpos);
tailpos = hostapd_eid_wb_chsw_wrapper(hapd, tailpos);
}
#endif /* CONFIG_IEEE80211AC */
tailpos = hostapd_eid_fils_indic(hapd, tailpos, 0);
#ifdef CONFIG_IEEE80211AC
if (hapd->conf->vendor_vht)
tailpos = hostapd_eid_vendor_vht(hapd, tailpos);
#endif /* CONFIG_IEEE80211AC */

2
src/ap/ieee802_11.h
View file

@ -135,4 +135,6 @@ void ap_copy_sta_supp_op_classes(struct sta_info *sta,
const u8 *supp_op_classes,
size_t supp_op_classes_len);
u8 * hostapd_eid_fils_indic(struct hostapd_data *hapd, u8 *eid, int hessid);
#endif /* IEEE802_11_H */

42
src/ap/ieee802_11_shared.c
View file

@ -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;
}