void handle_probe_req(struct hostapd_data *hapd,
const struct ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_mgmt *resp;
struct ieee802_11_elems elems;
char *ssid;
u8 *pos, *epos;
const u8 *ie;
size_t ssid_len, ie_len;
struct sta_info *sta = NULL;
size_t buflen;
size_t i;
ie = mgmt->u.probe_req.variable;
if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
return;
ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++)
if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
mgmt->sa, mgmt->da, mgmt->bssid,
ie, ie_len) > 0)
return;
if (!hapd->iconf->send_probe_response)
return;
if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
wpa_printf(MSG_DEBUG, "Could not parse ProbeReq from " MACSTR,
MAC2STR(mgmt->sa));
return;
}
ssid = NULL;
ssid_len = 0;
if ((!elems.ssid || !elems.supp_rates)) {
wpa_printf(MSG_DEBUG, "STA " MACSTR " sent probe request "
"without SSID or supported rates element",
MAC2STR(mgmt->sa));
return;
}
#ifdef CONFIG_P2P
if (hapd->p2p && elems.wps_ie) {
struct wpabuf *wps;
wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
if (wps && !p2p_group_match_dev_type(hapd->p2p_group, wps)) {
wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
"due to mismatch with Requested Device "
"Type");
wpabuf_free(wps);
return;
}
wpabuf_free(wps);
}
if (hapd->p2p && elems.p2p) {
struct wpabuf *p2p;
p2p = ieee802_11_vendor_ie_concat(ie, ie_len, P2P_IE_VENDOR_TYPE);
if (p2p && !p2p_group_match_dev_id(hapd->p2p_group, p2p)) {
wpa_printf(MSG_MSGDUMP, "P2P: Ignore Probe Request "
"due to mismatch with Device ID");
wpabuf_free(p2p);
return;
}
wpabuf_free(p2p);
}
#endif /* CONFIG_P2P */
if (hapd->conf->ignore_broadcast_ssid && elems.ssid_len == 0) {
wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR " for "
"broadcast SSID ignored", MAC2STR(mgmt->sa));
return;
}
sta = ap_get_sta(hapd, mgmt->sa);
#ifdef CONFIG_P2P
if ((hapd->conf->p2p & P2P_GROUP_OWNER) &&
elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
P2P_WILDCARD_SSID_LEN) == 0) {
/* Process P2P Wildcard SSID like Wildcard SSID */
elems.ssid_len = 0;
}
#endif /* CONFIG_P2P */
if (elems.ssid_len == 0 ||
(elems.ssid_len == hapd->conf->ssid.ssid_len &&
os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) ==
0)) {
ssid = hapd->conf->ssid.ssid;
ssid_len = hapd->conf->ssid.ssid_len;
if (sta)
sta->ssid_probe = &hapd->conf->ssid;
}
if (!ssid) {
if (!(mgmt->da[0] & 0x01)) {
char ssid_txt[33];
ieee802_11_print_ssid(ssid_txt, elems.ssid,
elems.ssid_len);
wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
" for foreign SSID '%s' (DA " MACSTR ")",
MAC2STR(mgmt->sa), ssid_txt,
MAC2STR(mgmt->da));
}
return;
}
#ifdef CONFIG_INTERWORKING
if (elems.interworking && elems.interworking_len >= 1) {
u8 ant = elems.interworking[0] & 0x0f;
if (ant != INTERWORKING_ANT_WILDCARD &&
ant != hapd->conf->access_network_type) {
wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
" for mismatching ANT %u ignored",
MAC2STR(mgmt->sa), ant);
return;
}
}
if (elems.interworking &&
(elems.interworking_len == 7 || elems.interworking_len == 9)) {
const u8 *hessid;
if (elems.interworking_len == 7)
hessid = elems.interworking + 1;
else
hessid = elems.interworking + 1 + 2;
if (!is_broadcast_ether_addr(hessid) &&
os_memcmp(hessid, hapd->conf->hessid, ETH_ALEN) != 0) {
wpa_printf(MSG_MSGDUMP, "Probe Request from " MACSTR
" for mismatching HESSID " MACSTR
" ignored",
MAC2STR(mgmt->sa), MAC2STR(hessid));
return;
}
}
#endif /* CONFIG_INTERWORKING */
/* TODO: verify that supp_rates contains at least one matching rate
* with AP configuration */
#define MAX_PROBERESP_LEN 768
buflen = MAX_PROBERESP_LEN;
#ifdef CONFIG_WPS
if (hapd->wps_probe_resp_ie)
buflen += wpabuf_len(hapd->wps_probe_resp_ie);
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if (hapd->p2p_probe_resp_ie)
buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
#endif /* CONFIG_P2P */
resp = os_zalloc(buflen);
if (resp == NULL)
return;
epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_PROBE_RESP);
os_memcpy(resp->da, mgmt->sa, ETH_ALEN);
os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
resp->u.probe_resp.beacon_int =
host_to_le16(hapd->iconf->beacon_int);
/* hardware or low-level driver will setup seq_ctrl and timestamp */
resp->u.probe_resp.capab_info =
host_to_le16(hostapd_own_capab_info(hapd, sta, 1));
pos = resp->u.probe_resp.variable;
*pos++ = WLAN_EID_SSID;
*pos++ = ssid_len;
os_memcpy(pos, ssid, ssid_len);
pos += ssid_len;
/* Supported rates */
pos = hostapd_eid_supp_rates(hapd, pos);
/* DS Params */
pos = hostapd_eid_ds_params(hapd, pos);
pos = hostapd_eid_country(hapd, pos, epos - pos);
/* ERP Information element */
pos = hostapd_eid_erp_info(hapd, pos);
/* Extended supported rates */
pos = hostapd_eid_ext_supp_rates(hapd, pos);
/* RSN, MDIE, WPA */
pos = hostapd_eid_wpa(hapd, pos, epos - pos);
#ifdef CONFIG_IEEE80211N
pos = hostapd_eid_ht_capabilities(hapd, pos);
pos = hostapd_eid_ht_operation(hapd, pos);
#endif /* CONFIG_IEEE80211N */
pos = hostapd_eid_ext_capab(hapd, pos);
pos = hostapd_eid_time_adv(hapd, pos);
pos = hostapd_eid_time_zone(hapd, pos);
pos = hostapd_eid_interworking(hapd, pos);
pos = hostapd_eid_adv_proto(hapd, pos);
pos = hostapd_eid_roaming_consortium(hapd, pos);
/* Wi-Fi Alliance WMM */
pos = hostapd_eid_wmm(hapd, pos);
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
wpabuf_len(hapd->wps_probe_resp_ie));
pos += wpabuf_len(hapd->wps_probe_resp_ie);
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if ((hapd->conf->p2p & P2P_ENABLED) && elems.p2p &&
hapd->p2p_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
wpabuf_len(hapd->p2p_probe_resp_ie));
pos += wpabuf_len(hapd->p2p_probe_resp_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P_MANAGER
if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
P2P_MANAGE)
pos = hostapd_eid_p2p_manage(hapd, pos);
#endif /* CONFIG_P2P_MANAGER */
if (hostapd_drv_send_mlme(hapd, resp, pos - (u8 *) resp) < 0)
perror("handle_probe_req: send");
os_free(resp);
wpa_printf(MSG_EXCESSIVE, "STA " MACSTR " sent probe request for %s "
"SSID", MAC2STR(mgmt->sa),
elems.ssid_len == 0 ? "broadcast" : "our");
}
static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
const struct ieee80211_mgmt *req,
int is_p2p, size_t *resp_len)
{
struct ieee80211_mgmt *resp;
u8 *pos, *epos, *csa_pos;
size_t buflen;
#define MAX_PROBERESP_LEN 768
buflen = MAX_PROBERESP_LEN;
#ifdef CONFIG_WPS
if (hapd->wps_probe_resp_ie)
buflen += wpabuf_len(hapd->wps_probe_resp_ie);
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if (hapd->p2p_probe_resp_ie)
buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
#endif /* CONFIG_P2P */
#ifdef CONFIG_FST
if (hapd->iface->fst_ies)
buflen += wpabuf_len(hapd->iface->fst_ies);
#endif /* CONFIG_FST */
if (hapd->conf->vendor_elements)
buflen += wpabuf_len(hapd->conf->vendor_elements);
if (hapd->conf->vendor_vht) {
buflen += 5 + 2 + sizeof(struct ieee80211_vht_capabilities) +
2 + sizeof(struct ieee80211_vht_operation);
}
buflen += hostapd_mbo_ie_len(hapd);
resp = os_zalloc(buflen);
if (resp == NULL)
return NULL;
epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_PROBE_RESP);
if (req)
os_memcpy(resp->da, req->sa, ETH_ALEN);
os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
resp->u.probe_resp.beacon_int =
host_to_le16(hapd->iconf->beacon_int);
/* hardware or low-level driver will setup seq_ctrl and timestamp */
resp->u.probe_resp.capab_info =
host_to_le16(hostapd_own_capab_info(hapd));
pos = resp->u.probe_resp.variable;
*pos++ = WLAN_EID_SSID;
*pos++ = hapd->conf->ssid.ssid_len;
os_memcpy(pos, hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len);
pos += hapd->conf->ssid.ssid_len;
/* Supported rates */
pos = hostapd_eid_supp_rates(hapd, pos);
/* DS Params */
pos = hostapd_eid_ds_params(hapd, pos);
pos = hostapd_eid_country(hapd, pos, epos - pos);
/* Power Constraint element */
pos = hostapd_eid_pwr_constraint(hapd, pos);
/* CSA IE */
csa_pos = hostapd_eid_csa(hapd, pos);
if (csa_pos != pos)
hapd->cs_c_off_proberesp = csa_pos - (u8 *) resp - 1;
pos = csa_pos;
/* ERP Information element */
pos = hostapd_eid_erp_info(hapd, pos);
/* Extended supported rates */
pos = hostapd_eid_ext_supp_rates(hapd, pos);
/* RSN, MDIE, WPA */
pos = hostapd_eid_wpa(hapd, pos, epos - pos);
pos = hostapd_eid_bss_load(hapd, pos, epos - pos);
pos = hostapd_eid_rm_enabled_capab(hapd, pos, epos - pos);
/* eCSA IE */
csa_pos = hostapd_eid_ecsa(hapd, pos);
if (csa_pos != pos)
hapd->cs_c_off_ecsa_proberesp = csa_pos - (u8 *) resp - 1;
pos = csa_pos;
pos = hostapd_eid_supported_op_classes(hapd, pos);
#ifdef CONFIG_IEEE80211N
/* Secondary Channel Offset element */
/* TODO: The standard doesn't specify a position for this element. */
pos = hostapd_eid_secondary_channel(hapd, pos);
pos = hostapd_eid_ht_capabilities(hapd, pos);
pos = hostapd_eid_ht_operation(hapd, pos);
#endif /* CONFIG_IEEE80211N */
pos = hostapd_eid_ext_capab(hapd, pos);
pos = hostapd_eid_time_adv(hapd, pos);
pos = hostapd_eid_time_zone(hapd, pos);
pos = hostapd_eid_interworking(hapd, pos);
pos = hostapd_eid_adv_proto(hapd, pos);
pos = hostapd_eid_roaming_consortium(hapd, pos);
#ifdef CONFIG_FST
if (hapd->iface->fst_ies) {
os_memcpy(pos, wpabuf_head(hapd->iface->fst_ies),
wpabuf_len(hapd->iface->fst_ies));
pos += wpabuf_len(hapd->iface->fst_ies);
}
#endif /* CONFIG_FST */
#ifdef CONFIG_IEEE80211AC
if (hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) {
pos = hostapd_eid_vht_capabilities(hapd, pos);
pos = hostapd_eid_vht_operation(hapd, pos);
pos = hostapd_eid_txpower_envelope(hapd, pos);
pos = hostapd_eid_wb_chsw_wrapper(hapd, pos);
}
if (hapd->conf->vendor_vht)
pos = hostapd_eid_vendor_vht(hapd, pos);
#endif /* CONFIG_IEEE80211AC */
/* Wi-Fi Alliance WMM */
pos = hostapd_eid_wmm(hapd, pos);
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
wpabuf_len(hapd->wps_probe_resp_ie));
pos += wpabuf_len(hapd->wps_probe_resp_ie);
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if ((hapd->conf->p2p & P2P_ENABLED) && is_p2p &&
hapd->p2p_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
wpabuf_len(hapd->p2p_probe_resp_ie));
pos += wpabuf_len(hapd->p2p_probe_resp_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P_MANAGER
if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
P2P_MANAGE)
pos = hostapd_eid_p2p_manage(hapd, pos);
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_HS20
pos = hostapd_eid_hs20_indication(hapd, pos);
pos = hostapd_eid_osen(hapd, pos);
#endif /* CONFIG_HS20 */
pos = hostapd_eid_mbo(hapd, pos, (u8 *) resp + buflen - pos);
if (hapd->conf->vendor_elements) {
os_memcpy(pos, wpabuf_head(hapd->conf->vendor_elements),
wpabuf_len(hapd->conf->vendor_elements));
pos += wpabuf_len(hapd->conf->vendor_elements);
}
*resp_len = pos - (u8 *) resp;
return (u8 *) resp;
}
static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
struct sta_info *sta,
const struct ieee80211_mgmt *req,
int is_p2p, size_t *resp_len)
{
struct ieee80211_mgmt *resp;
u8 *pos, *epos;
size_t buflen;
#define MAX_PROBERESP_LEN 768
buflen = MAX_PROBERESP_LEN;
#ifdef CONFIG_WPS
if (hapd->wps_probe_resp_ie)
buflen += wpabuf_len(hapd->wps_probe_resp_ie);
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if (hapd->p2p_probe_resp_ie)
buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
#endif /* CONFIG_P2P */
if (hapd->conf->vendor_elements)
buflen += wpabuf_len(hapd->conf->vendor_elements);
resp = os_zalloc(buflen);
if (resp == NULL)
return NULL;
epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_PROBE_RESP);
if (req)
os_memcpy(resp->da, req->sa, ETH_ALEN);
os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
resp->u.probe_resp.beacon_int =
host_to_le16(hapd->iconf->beacon_int);
/* hardware or low-level driver will setup seq_ctrl and timestamp */
resp->u.probe_resp.capab_info =
host_to_le16(hostapd_own_capab_info(hapd, sta, 1));
pos = resp->u.probe_resp.variable;
*pos++ = WLAN_EID_SSID;
*pos++ = hapd->conf->ssid.ssid_len;
os_memcpy(pos, hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len);
pos += hapd->conf->ssid.ssid_len;
/* Supported rates */
pos = hostapd_eid_supp_rates(hapd, pos);
/* DS Params */
pos = hostapd_eid_ds_params(hapd, pos);
pos = hostapd_eid_country(hapd, pos, epos - pos);
/* ERP Information element */
pos = hostapd_eid_erp_info(hapd, pos);
/* Extended supported rates */
pos = hostapd_eid_ext_supp_rates(hapd, pos);
/* RSN, MDIE, WPA */
pos = hostapd_eid_wpa(hapd, pos, epos - pos);
#ifdef CONFIG_IEEE80211N
pos = hostapd_eid_ht_capabilities(hapd, pos);
pos = hostapd_eid_ht_operation(hapd, pos);
#endif /* CONFIG_IEEE80211N */
pos = hostapd_eid_ext_capab(hapd, pos);
pos = hostapd_eid_time_adv(hapd, pos);
pos = hostapd_eid_time_zone(hapd, pos);
pos = hostapd_eid_interworking(hapd, pos);
pos = hostapd_eid_adv_proto(hapd, pos);
pos = hostapd_eid_roaming_consortium(hapd, pos);
#ifdef CONFIG_IEEE80211AC
pos = hostapd_eid_vht_capabilities(hapd, pos);
pos = hostapd_eid_vht_operation(hapd, pos);
#endif /* CONFIG_IEEE80211AC */
/* Wi-Fi Alliance WMM */
pos = hostapd_eid_wmm(hapd, pos);
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
wpabuf_len(hapd->wps_probe_resp_ie));
pos += wpabuf_len(hapd->wps_probe_resp_ie);
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if ((hapd->conf->p2p & P2P_ENABLED) && is_p2p &&
hapd->p2p_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
wpabuf_len(hapd->p2p_probe_resp_ie));
pos += wpabuf_len(hapd->p2p_probe_resp_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P_MANAGER
if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
P2P_MANAGE)
pos = hostapd_eid_p2p_manage(hapd, pos);
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_HS20
pos = hostapd_eid_hs20_indication(hapd, pos);
#endif /* CONFIG_HS20 */
if (hapd->conf->vendor_elements) {
os_memcpy(pos, wpabuf_head(hapd->conf->vendor_elements),
wpabuf_len(hapd->conf->vendor_elements));
pos += wpabuf_len(hapd->conf->vendor_elements);
}
*resp_len = pos - (u8 *) resp;
return (u8 *) resp;
}
int hostapd_build_ap_extra_ies(struct hostapd_data *hapd,
struct wpabuf **beacon_ret,
struct wpabuf **proberesp_ret,
struct wpabuf **assocresp_ret)
{
struct wpabuf *beacon = NULL, *proberesp = NULL, *assocresp = NULL;
u8 buf[200], *pos;
*beacon_ret = *proberesp_ret = *assocresp_ret = NULL;
pos = buf;
pos = hostapd_eid_time_adv(hapd, pos);
if (pos != buf) {
if (wpabuf_resize(&beacon, pos - buf) != 0)
goto fail;
wpabuf_put_data(beacon, buf, pos - buf);
}
pos = hostapd_eid_time_zone(hapd, pos);
if (pos != buf) {
if (wpabuf_resize(&proberesp, pos - buf) != 0)
goto fail;
wpabuf_put_data(proberesp, buf, pos - buf);
}
pos = buf;
pos = hostapd_eid_ext_capab(hapd, pos);
if (pos != buf) {
if (wpabuf_resize(&assocresp, pos - buf) != 0)
goto fail;
wpabuf_put_data(assocresp, buf, pos - buf);
}
pos = hostapd_eid_interworking(hapd, pos);
pos = hostapd_eid_adv_proto(hapd, pos);
pos = hostapd_eid_roaming_consortium(hapd, pos);
if (pos != buf) {
if (wpabuf_resize(&beacon, pos - buf) != 0)
goto fail;
wpabuf_put_data(beacon, buf, pos - buf);
if (wpabuf_resize(&proberesp, pos - buf) != 0)
goto fail;
wpabuf_put_data(proberesp, buf, pos - buf);
}
if (hapd->wps_beacon_ie) {
if (wpabuf_resize(&beacon, wpabuf_len(hapd->wps_beacon_ie)) <
0)
goto fail;
wpabuf_put_buf(beacon, hapd->wps_beacon_ie);
}
if (hapd->wps_probe_resp_ie) {
if (wpabuf_resize(&proberesp,
wpabuf_len(hapd->wps_probe_resp_ie)) < 0)
goto fail;
wpabuf_put_buf(proberesp, hapd->wps_probe_resp_ie);
}
#ifdef CONFIG_P2P
if (hapd->p2p_beacon_ie) {
if (wpabuf_resize(&beacon, wpabuf_len(hapd->p2p_beacon_ie)) <
0)
goto fail;
wpabuf_put_buf(beacon, hapd->p2p_beacon_ie);
}
if (hapd->p2p_probe_resp_ie) {
if (wpabuf_resize(&proberesp,
wpabuf_len(hapd->p2p_probe_resp_ie)) < 0)
goto fail;
wpabuf_put_buf(proberesp, hapd->p2p_probe_resp_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P_MANAGER
if (hapd->conf->p2p & P2P_MANAGE) {
if (wpabuf_resize(&beacon, 100) == 0) {
u8 *start, *p;
start = wpabuf_put(beacon, 0);
p = hostapd_eid_p2p_manage(hapd, start);
wpabuf_put(beacon, p - start);
}
if (wpabuf_resize(&proberesp, 100) == 0) {
u8 *start, *p;
start = wpabuf_put(proberesp, 0);
p = hostapd_eid_p2p_manage(hapd, start);
wpabuf_put(proberesp, p - start);
}
}
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_WPS2
if (hapd->conf->wps_state) {
struct wpabuf *a = wps_build_assoc_resp_ie();
if (a && wpabuf_resize(&assocresp, wpabuf_len(a)) == 0)
wpabuf_put_buf(assocresp, a);
wpabuf_free(a);
}
#endif /* CONFIG_WPS2 */
#ifdef CONFIG_P2P_MANAGER
if (hapd->conf->p2p & P2P_MANAGE) {
if (wpabuf_resize(&assocresp, 100) == 0) {
u8 *start, *p;
start = wpabuf_put(assocresp, 0);
p = hostapd_eid_p2p_manage(hapd, start);
wpabuf_put(assocresp, p - start);
}
}
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_WIFI_DISPLAY
if (hapd->p2p_group) {
struct wpabuf *a;
a = p2p_group_assoc_resp_ie(hapd->p2p_group, P2P_SC_SUCCESS);
if (a && wpabuf_resize(&assocresp, wpabuf_len(a)) == 0)
wpabuf_put_buf(assocresp, a);
wpabuf_free(a);
}
#endif /* CONFIG_WIFI_DISPLAY */
#ifdef CONFIG_HS20
pos = buf;
pos = hostapd_eid_hs20_indication(hapd, pos);
if (pos != buf) {
if (wpabuf_resize(&beacon, pos - buf) != 0)
goto fail;
wpabuf_put_data(beacon, buf, pos - buf);
if (wpabuf_resize(&proberesp, pos - buf) != 0)
goto fail;
wpabuf_put_data(proberesp, buf, pos - buf);
}
#endif /* CONFIG_HS20 */
*beacon_ret = beacon;
*proberesp_ret = proberesp;
*assocresp_ret = assocresp;
return 0;
fail:
wpabuf_free(beacon);
wpabuf_free(proberesp);
wpabuf_free(assocresp);
return -1;
}
int hostapd_build_ap_extra_ies(struct hostapd_data *hapd,
struct wpabuf **beacon_ret,
struct wpabuf **proberesp_ret,
struct wpabuf **assocresp_ret)
{
struct wpabuf *beacon = NULL, *proberesp = NULL, *assocresp = NULL;
u8 buf[200], *pos;
*beacon_ret = *proberesp_ret = *assocresp_ret = NULL;
pos = buf;
pos = hostapd_eid_time_adv(hapd, pos);
if (add_buf_data(&beacon, buf, pos - buf) < 0)
goto fail;
pos = hostapd_eid_time_zone(hapd, pos);
if (add_buf_data(&proberesp, buf, pos - buf) < 0)
goto fail;
pos = buf;
pos = hostapd_eid_ext_capab(hapd, pos);
if (add_buf_data(&assocresp, buf, pos - buf) < 0)
goto fail;
pos = hostapd_eid_interworking(hapd, pos);
pos = hostapd_eid_adv_proto(hapd, pos);
pos = hostapd_eid_roaming_consortium(hapd, pos);
if (add_buf_data(&beacon, buf, pos - buf) < 0 ||
add_buf_data(&proberesp, buf, pos - buf) < 0)
goto fail;
#ifdef CONFIG_FST
if (add_buf(&beacon, hapd->iface->fst_ies) < 0 ||
add_buf(&proberesp, hapd->iface->fst_ies) < 0 ||
add_buf(&assocresp, hapd->iface->fst_ies) < 0)
goto fail;
#endif /* CONFIG_FST */
#ifdef CONFIG_FILS
pos = hostapd_eid_fils_indic(hapd, buf, 0);
if (add_buf_data(&beacon, buf, pos - buf) < 0 ||
add_buf_data(&proberesp, buf, pos - buf) < 0)
goto fail;
#endif /* CONFIG_FILS */
if (add_buf(&beacon, hapd->wps_beacon_ie) < 0 ||
add_buf(&proberesp, hapd->wps_probe_resp_ie) < 0)
goto fail;
#ifdef CONFIG_P2P
if (add_buf(&beacon, hapd->p2p_beacon_ie) < 0 ||
add_buf(&proberesp, hapd->p2p_probe_resp_ie) < 0)
goto fail;
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P_MANAGER
if (hapd->conf->p2p & P2P_MANAGE) {
if (wpabuf_resize(&beacon, 100) == 0) {
u8 *start, *p;
start = wpabuf_put(beacon, 0);
p = hostapd_eid_p2p_manage(hapd, start);
wpabuf_put(beacon, p - start);
}
if (wpabuf_resize(&proberesp, 100) == 0) {
u8 *start, *p;
start = wpabuf_put(proberesp, 0);
p = hostapd_eid_p2p_manage(hapd, start);
wpabuf_put(proberesp, p - start);
}
}
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
struct wpabuf *a = wps_build_assoc_resp_ie();
add_buf(&assocresp, a);
wpabuf_free(a);
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P_MANAGER
if (hapd->conf->p2p & P2P_MANAGE) {
if (wpabuf_resize(&assocresp, 100) == 0) {
u8 *start, *p;
start = wpabuf_put(assocresp, 0);
p = hostapd_eid_p2p_manage(hapd, start);
wpabuf_put(assocresp, p - start);
}
}
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_WIFI_DISPLAY
if (hapd->p2p_group) {
struct wpabuf *a;
a = p2p_group_assoc_resp_ie(hapd->p2p_group, P2P_SC_SUCCESS);
add_buf(&assocresp, a);
wpabuf_free(a);
}
#endif /* CONFIG_WIFI_DISPLAY */
#ifdef CONFIG_HS20
pos = hostapd_eid_hs20_indication(hapd, buf);
if (add_buf_data(&beacon, buf, pos - buf) < 0 ||
add_buf_data(&proberesp, buf, pos - buf) < 0)
goto fail;
pos = hostapd_eid_osen(hapd, buf);
if (add_buf_data(&beacon, buf, pos - buf) < 0 ||
add_buf_data(&proberesp, buf, pos - buf) < 0)
goto fail;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_MBO
if (hapd->conf->mbo_enabled || hapd->enable_oce) {
pos = hostapd_eid_mbo(hapd, buf, sizeof(buf));
if (add_buf_data(&beacon, buf, pos - buf) < 0 ||
add_buf_data(&proberesp, buf, pos - buf) < 0 ||
add_buf_data(&assocresp, buf, pos - buf) < 0)
goto fail;
}
#endif /* CONFIG_MBO */
add_buf(&beacon, hapd->conf->vendor_elements);
add_buf(&proberesp, hapd->conf->vendor_elements);
add_buf(&assocresp, hapd->conf->assocresp_elements);
*beacon_ret = beacon;
*proberesp_ret = proberesp;
*assocresp_ret = assocresp;
return 0;
fail:
wpabuf_free(beacon);
wpabuf_free(proberesp);
wpabuf_free(assocresp);
return -1;
}
static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
struct sta_info *sta, const u8 *ssid, size_t ssid_len,
const struct ieee80211_mgmt *req,
int is_p2p, size_t *resp_len)
{
struct ieee80211_mgmt *resp;
u8 *pos, *epos;
size_t buflen;
#define MAX_PROBERESP_LEN 768
buflen = MAX_PROBERESP_LEN;
#ifdef CONFIG_WPS
if (hapd->wps_probe_resp_ie)
buflen += wpabuf_len(hapd->wps_probe_resp_ie);
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if (hapd->p2p_probe_resp_ie)
buflen += wpabuf_len(hapd->p2p_probe_resp_ie);
#endif /* CONFIG_P2P */
if (hapd->conf->vendor_elements)
buflen += wpabuf_len(hapd->conf->vendor_elements);
resp = os_zalloc(buflen);
if (resp == NULL)
return NULL;
epos = ((u8 *) resp) + MAX_PROBERESP_LEN;
resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_PROBE_RESP);
//MANA - check against macacl
if (req && hapd->iconf->mana_macacl) {
int match;
if (hapd->iconf->bss[0]->macaddr_acl == DENY_UNLESS_ACCEPTED) {
match = hostapd_maclist_found(hapd->conf->accept_mac, hapd->conf->num_accept_mac, req->sa, NULL);
if (!match) {
wpa_printf(MSG_DEBUG, "MANA: Station MAC is not authorised by accept ACL: " MACSTR, MAC2STR(req->sa));
return NULL; //MAC is not in accept list, back out and don't send
}
} else if (hapd->iconf->bss[0]->macaddr_acl == ACCEPT_UNLESS_DENIED) {
if (hostapd_maclist_found(hapd->conf->deny_mac, hapd->conf->num_deny_mac, req->sa, NULL)) {
wpa_printf(MSG_DEBUG, "MANA: Station MAC is not authorised by deny ACL: " MACSTR, MAC2STR(req->sa));
return NULL; //MAC is in deny list, back out and don't send
}
}
wpa_printf(MSG_INFO, "MANA: Station MAC is authorised by ACL: " MACSTR, MAC2STR(req->sa));
}
//MANA END
if (req)
os_memcpy(resp->da, req->sa, ETH_ALEN);
os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
resp->u.probe_resp.beacon_int =
host_to_le16(hapd->iconf->beacon_int);
/* hardware or low-level driver will setup seq_ctrl and timestamp */
resp->u.probe_resp.capab_info =
host_to_le16(hostapd_own_capab_info(hapd, sta, 1)); // MANA - FOLLOW
pos = resp->u.probe_resp.variable;
*pos++ = WLAN_EID_SSID;
// MANA START
if (hapd->iconf->enable_mana && ssid_len > 0) {
*pos++ = ssid_len;
os_memcpy(pos, ssid, ssid_len);
pos += ssid_len;
} else {
*pos++ = hapd->conf->ssid.ssid_len;
os_memcpy(pos, hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len);
pos += hapd->conf->ssid.ssid_len;
}
// MANA END
/* Supported rates */
pos = hostapd_eid_supp_rates(hapd, pos);
/* DS Params */
pos = hostapd_eid_ds_params(hapd, pos);
pos = hostapd_eid_country(hapd, pos, epos - pos);
/* Power Constraint element */
pos = hostapd_eid_pwr_constraint(hapd, pos);
/* ERP Information element */
pos = hostapd_eid_erp_info(hapd, pos);
/* Extended supported rates */
pos = hostapd_eid_ext_supp_rates(hapd, pos);
/* RSN, MDIE, WPA */
pos = hostapd_eid_wpa(hapd, pos, epos - pos);
pos = hostapd_eid_bss_load(hapd, pos, epos - pos);
#ifdef CONFIG_IEEE80211N
pos = hostapd_eid_ht_capabilities(hapd, pos);
pos = hostapd_eid_ht_operation(hapd, pos);
#endif /* CONFIG_IEEE80211N */
pos = hostapd_eid_ext_capab(hapd, pos);
pos = hostapd_eid_time_adv(hapd, pos);
pos = hostapd_eid_time_zone(hapd, pos);
pos = hostapd_eid_interworking(hapd, pos);
pos = hostapd_eid_adv_proto(hapd, pos);
pos = hostapd_eid_roaming_consortium(hapd, pos);
pos = hostapd_add_csa_elems(hapd, pos, (u8 *)resp,
&hapd->cs_c_off_proberesp);
#ifdef CONFIG_IEEE80211AC
pos = hostapd_eid_vht_capabilities(hapd, pos);
pos = hostapd_eid_vht_operation(hapd, pos);
#endif /* CONFIG_IEEE80211AC */
/* Wi-Fi Alliance WMM */
pos = hostapd_eid_wmm(hapd, pos);
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && hapd->wps_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->wps_probe_resp_ie),
wpabuf_len(hapd->wps_probe_resp_ie));
pos += wpabuf_len(hapd->wps_probe_resp_ie);
}
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if ((hapd->conf->p2p & P2P_ENABLED) && is_p2p &&
hapd->p2p_probe_resp_ie) {
os_memcpy(pos, wpabuf_head(hapd->p2p_probe_resp_ie),
wpabuf_len(hapd->p2p_probe_resp_ie));
pos += wpabuf_len(hapd->p2p_probe_resp_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P_MANAGER
if ((hapd->conf->p2p & (P2P_MANAGE | P2P_ENABLED | P2P_GROUP_OWNER)) ==
P2P_MANAGE)
pos = hostapd_eid_p2p_manage(hapd, pos);
#endif /* CONFIG_P2P_MANAGER */
#ifdef CONFIG_HS20
pos = hostapd_eid_hs20_indication(hapd, pos);
pos = hostapd_eid_osen(hapd, pos);
#endif /* CONFIG_HS20 */
if (hapd->conf->vendor_elements) {
os_memcpy(pos, wpabuf_head(hapd->conf->vendor_elements),
wpabuf_len(hapd->conf->vendor_elements));
pos += wpabuf_len(hapd->conf->vendor_elements);
}
*resp_len = pos - (u8 *) resp;
return (u8 *) resp;
}
