}
+static void hostapd_range_rep_timeout_handler(void *eloop_data, void *user_ctx)
+{
+ struct hostapd_data *hapd = eloop_data;
+
+ wpa_printf(MSG_DEBUG, "RRM: Range request (token %u) timed out",
+ hapd->range_req_token);
+ hapd->range_req_active = 0;
+}
+
+
+static void hostapd_handle_range_report(struct hostapd_data *hapd, u8 token,
+ const u8 *pos, size_t len)
+{
+ if (!hapd->range_req_active || hapd->range_req_token != token) {
+ wpa_printf(MSG_DEBUG, "Unexpected range report, token %u",
+ token);
+ return;
+ }
+
+ hapd->range_req_active = 0;
+ eloop_cancel_timeout(hostapd_range_rep_timeout_handler, hapd, NULL);
+ wpa_printf(MSG_DEBUG, "Range report token %u len %zu", token, len);
+}
+
+
static void hostapd_handle_radio_msmt_report(struct hostapd_data *hapd,
const u8 *buf, size_t len)
{
case MEASURE_TYPE_LCI:
hostapd_handle_lci_report(hapd, token, ie + 2, ie[1]);
break;
+ case MEASURE_TYPE_FTM_RANGE:
+ hostapd_handle_range_report(hapd, token, ie + 2, ie[1]);
+ break;
default:
wpa_printf(MSG_DEBUG,
"Measurement report type %u is not supported",
}
+int hostapd_send_range_req(struct hostapd_data *hapd, const u8 *addr,
+ u16 random_interval, u8 min_ap,
+ const u8 *responders, unsigned int n_responders)
+{
+ struct wpabuf *buf;
+ struct sta_info *sta;
+ u8 *len;
+ unsigned int i;
+ int ret;
+
+ wpa_printf(MSG_DEBUG, "Request range: dest addr " MACSTR
+ " rand interval %u min AP %u n_responders %u", MAC2STR(addr),
+ random_interval, min_ap, n_responders);
+
+ if (min_ap == 0 || min_ap > n_responders) {
+ wpa_printf(MSG_INFO, "Request range: Wrong min AP count");
+ return -1;
+ }
+
+ sta = ap_get_sta(hapd, addr);
+ if (!sta || !(sta->flags & WLAN_STA_AUTHORIZED)) {
+ wpa_printf(MSG_INFO,
+ "Request range: Destination address is not connected");
+ return -1;
+ }
+
+ if (!(sta->rrm_enabled_capa[4] & WLAN_RRM_CAPS_FTM_RANGE_REPORT)) {
+ wpa_printf(MSG_ERROR,
+ "Request range: Destination station does not support FTM range report in RRM");
+ return -1;
+ }
+
+ if (hapd->range_req_active) {
+ wpa_printf(MSG_DEBUG,
+ "Request range: Range request is already in process; overriding");
+ hapd->range_req_active = 0;
+ eloop_register_timeout(HOSTAPD_RRM_REQUEST_TIMEOUT, 0,
+ hostapd_range_rep_timeout_handler, hapd,
+ NULL);
+ }
+
+ /* Action + measurement type + token + reps + EID + len = 7 */
+ buf = wpabuf_alloc(7 + 255);
+ if (!buf)
+ return -1;
+
+ hapd->range_req_token++;
+ if (!hapd->range_req_token) /* For wraparounds */
+ hapd->range_req_token++;
+
+ /* IEEE P802.11-REVmc/D5.0, 9.6.7.2 */
+ wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
+ wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REQUEST);
+ wpabuf_put_u8(buf, hapd->range_req_token); /* Dialog Token */
+ wpabuf_put_le16(buf, 0); /* Number of Repetitions */
+
+ /* IEEE P802.11-REVmc/D5.0, 9.4.2.21 */
+ wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
+ len = wpabuf_put(buf, 1); /* Length will be set later */
+
+ wpabuf_put_u8(buf, 1); /* Measurement Token */
+ /*
+ * Parallel and Enable bits are 0; Duration, Request, and Report are
+ * reserved.
+ */
+ wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
+ wpabuf_put_u8(buf, MEASURE_TYPE_FTM_RANGE); /* Measurement Type */
+
+ /* IEEE P802.11-REVmc/D5.0, 9.4.2.21.19 */
+ wpabuf_put_le16(buf, random_interval); /* Randomization Interval */
+ wpabuf_put_u8(buf, min_ap); /* Minimum AP Count */
+
+ /* FTM Range Subelements */
+
+ /*
+ * Taking the neighbor report part of the range request from neighbor
+ * database instead of requesting the separate bits of data from the
+ * user.
+ */
+ for (i = 0; i < n_responders; i++) {
+ struct hostapd_neighbor_entry *nr;
+
+ nr = hostapd_neighbor_get(hapd, responders + ETH_ALEN * i,
+ NULL);
+ if (!nr) {
+ wpa_printf(MSG_INFO, "Missing neighbor report for "
+ MACSTR, MAC2STR(responders + ETH_ALEN * i));
+ wpabuf_free(buf);
+ return -1;
+ }
+
+ if (wpabuf_tailroom(buf) < 2 + wpabuf_len(nr->nr)) {
+ wpa_printf(MSG_ERROR, "Too long range request");
+ wpabuf_free(buf);
+ return -1;
+ }
+
+ wpabuf_put_u8(buf, WLAN_EID_NEIGHBOR_REPORT);
+ wpabuf_put_u8(buf, wpabuf_len(nr->nr));
+ wpabuf_put_buf(buf, nr->nr);
+ }
+
+ /* Action + measurement type + token + reps + EID + len = 7 */
+ *len = wpabuf_len(buf) - 7;
+
+ ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
+ wpabuf_head(buf), wpabuf_len(buf));
+ wpabuf_free(buf);
+ if (ret)
+ return ret;
+
+ hapd->range_req_active = 1;
+
+ eloop_register_timeout(HOSTAPD_RRM_REQUEST_TIMEOUT, 0,
+ hostapd_range_rep_timeout_handler, hapd, NULL);
+
+ return 0;
+}
+
+
void hostapd_clean_rrm(struct hostapd_data *hapd)
{
hostpad_free_neighbor_db(hapd);
eloop_cancel_timeout(hostapd_lci_rep_timeout_handler, hapd, NULL);
hapd->lci_req_active = 0;
+ eloop_cancel_timeout(hostapd_range_rep_timeout_handler, hapd, NULL);
+ hapd->range_req_active = 0;
}
projects / mech_eap.git / blobdiff