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OWE: Add AP support for transition mode

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The new owe_transition_bssid and owe_transition_ssid parameters can be
used to configure hostapd to advertise the OWE Transition Mode element.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2017-10-08 12:23:00 +03:00 • committed by Jouni Malinen
parent e45f2e8ad5
commit ea079153f4
5 changed files with 98 additions and 0 deletions
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62
src/ap/beacon.c
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@ -363,6 +363,63 @@ static u8 * hostapd_eid_supported_op_classes(struct hostapd_data *hapd, u8 *eid)
}
#ifdef CONFIG_OWE
static int hostapd_eid_owe_trans_enabled(struct hostapd_data *hapd)
{
return hapd->conf->owe_transition_ssid_len > 0 &&
!is_zero_ether_addr(hapd->conf->owe_transition_bssid);
}
#endif /* CONFIG_OWE */
static size_t hostapd_eid_owe_trans_len(struct hostapd_data *hapd)
{
#ifdef CONFIG_OWE
if (!hostapd_eid_owe_trans_enabled(hapd))
return 0;
return 6 + ETH_ALEN + 1 + hapd->conf->owe_transition_ssid_len;
#else /* CONFIG_OWE */
return 0;
#endif /* CONFIG_OWE */
}
static u8 * hostapd_eid_owe_trans(struct hostapd_data *hapd, u8 *eid,
size_t len)
{
#ifdef CONFIG_OWE
u8 *pos = eid;
size_t elen;
if (!hostapd_eid_owe_trans_enabled(hapd))
return pos;
elen = hostapd_eid_owe_trans_len(hapd);
if (len < elen) {
wpa_printf(MSG_DEBUG,
"OWE: Not enough room in the buffer for OWE IE");
return pos;
}
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = elen - 2;
WPA_PUT_BE24(pos, OUI_WFA);
pos += 3;
*pos++ = OWE_OUI_TYPE;
os_memcpy(pos, hapd->conf->owe_transition_bssid, ETH_ALEN);
pos += ETH_ALEN;
*pos++ = hapd->conf->owe_transition_ssid_len;
os_memcpy(pos, hapd->conf->owe_transition_ssid,
hapd->conf->owe_transition_ssid_len);
pos += hapd->conf->owe_transition_ssid_len;
return pos;
#else /* CONFIG_OWE */
return eid;
#endif /* CONFIG_OWE */
}
static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
const struct ieee80211_mgmt *req,
int is_p2p, size_t *resp_len)
@ -400,6 +457,7 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
#endif /* CONFIG_IEEE80211AX */
buflen += hostapd_mbo_ie_len(hapd);
buflen += hostapd_eid_owe_trans_len(hapd);
resp = os_zalloc(buflen);
if (resp == NULL)
@ -545,6 +603,7 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
#endif /* CONFIG_HS20 */
pos = hostapd_eid_mbo(hapd, pos, (u8 *) resp + buflen - pos);
pos = hostapd_eid_owe_trans(hapd, pos, (u8 *) resp + buflen - pos);
if (hapd->conf->vendor_elements) {
os_memcpy(pos, wpabuf_head(hapd->conf->vendor_elements),
@ -1062,6 +1121,7 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
#endif /* CONFIG_IEEE80211AX */
tail_len += hostapd_mbo_ie_len(hapd);
tail_len += hostapd_eid_owe_trans_len(hapd);
tailpos = tail = os_malloc(tail_len);
if (head == NULL || tail == NULL) {
@ -1229,6 +1289,8 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
#endif /* CONFIG_HS20 */
tailpos = hostapd_eid_mbo(hapd, tailpos, tail + tail_len - tailpos);
tailpos = hostapd_eid_owe_trans(hapd, tailpos,
tail + tail_len - tailpos);
if (hapd->conf->vendor_elements) {
os_memcpy(tailpos, wpabuf_head(hapd->conf->vendor_elements),