2022-01-17 21:12:36 +00:00
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/*
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* wpa_supplicant - WNM
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* Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "common/ieee802_11_defs.h"
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#include "common/ieee802_11_common.h"
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#include "common/wpa_ctrl.h"
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#include "common/ocv.h"
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#include "rsn_supp/wpa.h"
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#include "config.h"
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#include "wpa_supplicant_i.h"
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#include "driver_i.h"
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#include "scan.h"
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#include "ctrl_iface.h"
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#include "bss.h"
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#include "wnm_sta.h"
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#include "notify.h"
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#include "hs20_supplicant.h"
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#define MAX_TFS_IE_LEN 1024
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#define WNM_MAX_NEIGHBOR_REPORT 10
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#define WNM_SCAN_RESULT_AGE 2 /* 2 seconds */
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/* get the TFS IE from driver */
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static int ieee80211_11_get_tfs_ie(struct wpa_supplicant *wpa_s, u8 *buf,
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u16 *buf_len, enum wnm_oper oper)
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{
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wpa_printf(MSG_DEBUG, "%s: TFS get operation %d", __func__, oper);
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return wpa_drv_wnm_oper(wpa_s, oper, wpa_s->bssid, buf, buf_len);
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}
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/* set the TFS IE to driver */
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static int ieee80211_11_set_tfs_ie(struct wpa_supplicant *wpa_s,
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const u8 *addr, const u8 *buf, u16 buf_len,
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enum wnm_oper oper)
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{
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u16 len = buf_len;
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wpa_printf(MSG_DEBUG, "%s: TFS set operation %d", __func__, oper);
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return wpa_drv_wnm_oper(wpa_s, oper, addr, (u8 *) buf, &len);
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}
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/* MLME-SLEEPMODE.request */
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int ieee802_11_send_wnmsleep_req(struct wpa_supplicant *wpa_s,
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u8 action, u16 intval, struct wpabuf *tfs_req)
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{
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struct ieee80211_mgmt *mgmt;
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int res;
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size_t len;
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struct wnm_sleep_element *wnmsleep_ie;
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u8 *wnmtfs_ie, *oci_ie;
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u8 wnmsleep_ie_len, oci_ie_len;
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u16 wnmtfs_ie_len; /* possibly multiple IE(s) */
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enum wnm_oper tfs_oper = action == 0 ? WNM_SLEEP_TFS_REQ_IE_ADD :
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WNM_SLEEP_TFS_REQ_IE_NONE;
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wpa_printf(MSG_DEBUG, "WNM: Request to send WNM-Sleep Mode Request "
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"action=%s to " MACSTR,
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action == 0 ? "enter" : "exit",
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MAC2STR(wpa_s->bssid));
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/* WNM-Sleep Mode IE */
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wnmsleep_ie_len = sizeof(struct wnm_sleep_element);
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wnmsleep_ie = os_zalloc(sizeof(struct wnm_sleep_element));
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if (wnmsleep_ie == NULL)
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return -1;
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wnmsleep_ie->eid = WLAN_EID_WNMSLEEP;
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wnmsleep_ie->len = wnmsleep_ie_len - 2;
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wnmsleep_ie->action_type = action;
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wnmsleep_ie->status = WNM_STATUS_SLEEP_ACCEPT;
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wnmsleep_ie->intval = host_to_le16(intval);
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wpa_hexdump(MSG_DEBUG, "WNM: WNM-Sleep Mode element",
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(u8 *) wnmsleep_ie, wnmsleep_ie_len);
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/* TFS IE(s) */
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if (tfs_req) {
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wnmtfs_ie_len = wpabuf_len(tfs_req);
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wnmtfs_ie = os_memdup(wpabuf_head(tfs_req), wnmtfs_ie_len);
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if (wnmtfs_ie == NULL) {
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os_free(wnmsleep_ie);
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return -1;
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}
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} else {
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wnmtfs_ie = os_zalloc(MAX_TFS_IE_LEN);
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if (wnmtfs_ie == NULL) {
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os_free(wnmsleep_ie);
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return -1;
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}
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if (ieee80211_11_get_tfs_ie(wpa_s, wnmtfs_ie, &wnmtfs_ie_len,
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tfs_oper)) {
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wnmtfs_ie_len = 0;
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os_free(wnmtfs_ie);
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wnmtfs_ie = NULL;
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}
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}
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wpa_hexdump(MSG_DEBUG, "WNM: TFS Request element",
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(u8 *) wnmtfs_ie, wnmtfs_ie_len);
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oci_ie = NULL;
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oci_ie_len = 0;
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#ifdef CONFIG_OCV
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if (action == WNM_SLEEP_MODE_EXIT && wpa_sm_ocv_enabled(wpa_s->wpa)) {
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struct wpa_channel_info ci;
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if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
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wpa_printf(MSG_WARNING,
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"Failed to get channel info for OCI element in WNM-Sleep Mode frame");
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os_free(wnmsleep_ie);
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os_free(wnmtfs_ie);
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return -1;
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}
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#ifdef CONFIG_TESTING_OPTIONS
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if (wpa_s->oci_freq_override_wnm_sleep) {
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wpa_printf(MSG_INFO,
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"TEST: Override OCI KDE frequency %d -> %d MHz",
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ci.frequency,
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wpa_s->oci_freq_override_wnm_sleep);
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ci.frequency = wpa_s->oci_freq_override_wnm_sleep;
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}
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#endif /* CONFIG_TESTING_OPTIONS */
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oci_ie_len = OCV_OCI_EXTENDED_LEN;
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oci_ie = os_zalloc(oci_ie_len);
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if (!oci_ie) {
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wpa_printf(MSG_WARNING,
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"Failed to allocate buffer for for OCI element in WNM-Sleep Mode frame");
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os_free(wnmsleep_ie);
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os_free(wnmtfs_ie);
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return -1;
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}
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if (ocv_insert_extended_oci(&ci, oci_ie) < 0) {
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os_free(wnmsleep_ie);
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os_free(wnmtfs_ie);
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os_free(oci_ie);
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return -1;
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}
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}
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#endif /* CONFIG_OCV */
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mgmt = os_zalloc(sizeof(*mgmt) + wnmsleep_ie_len + wnmtfs_ie_len +
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oci_ie_len);
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if (mgmt == NULL) {
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wpa_printf(MSG_DEBUG, "MLME: Failed to allocate buffer for "
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"WNM-Sleep Request action frame");
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os_free(wnmsleep_ie);
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os_free(wnmtfs_ie);
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return -1;
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}
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os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
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os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
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os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
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mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
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WLAN_FC_STYPE_ACTION);
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mgmt->u.action.category = WLAN_ACTION_WNM;
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mgmt->u.action.u.wnm_sleep_req.action = WNM_SLEEP_MODE_REQ;
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mgmt->u.action.u.wnm_sleep_req.dialogtoken = 1;
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os_memcpy(mgmt->u.action.u.wnm_sleep_req.variable, wnmsleep_ie,
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wnmsleep_ie_len);
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/* copy TFS IE here */
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if (wnmtfs_ie_len > 0) {
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os_memcpy(mgmt->u.action.u.wnm_sleep_req.variable +
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wnmsleep_ie_len, wnmtfs_ie, wnmtfs_ie_len);
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}
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#ifdef CONFIG_OCV
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/* copy OCV OCI here */
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if (oci_ie_len > 0) {
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os_memcpy(mgmt->u.action.u.wnm_sleep_req.variable +
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wnmsleep_ie_len + wnmtfs_ie_len, oci_ie, oci_ie_len);
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}
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#endif /* CONFIG_OCV */
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len = 1 + sizeof(mgmt->u.action.u.wnm_sleep_req) + wnmsleep_ie_len +
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wnmtfs_ie_len + oci_ie_len;
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res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
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wpa_s->own_addr, wpa_s->bssid,
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&mgmt->u.action.category, len, 0);
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if (res < 0)
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wpa_printf(MSG_DEBUG, "Failed to send WNM-Sleep Request "
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"(action=%d, intval=%d)", action, intval);
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else
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wpa_s->wnmsleep_used = 1;
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os_free(wnmsleep_ie);
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os_free(wnmtfs_ie);
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os_free(oci_ie);
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os_free(mgmt);
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return res;
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}
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static void wnm_sleep_mode_enter_success(struct wpa_supplicant *wpa_s,
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const u8 *tfsresp_ie_start,
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const u8 *tfsresp_ie_end)
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{
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wpa_drv_wnm_oper(wpa_s, WNM_SLEEP_ENTER_CONFIRM,
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wpa_s->bssid, NULL, NULL);
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/* remove GTK/IGTK ?? */
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/* set the TFS Resp IE(s) */
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if (tfsresp_ie_start && tfsresp_ie_end &&
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tfsresp_ie_end - tfsresp_ie_start >= 0) {
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u16 tfsresp_ie_len;
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tfsresp_ie_len = (tfsresp_ie_end + tfsresp_ie_end[1] + 2) -
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tfsresp_ie_start;
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wpa_printf(MSG_DEBUG, "TFS Resp IE(s) found");
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/* pass the TFS Resp IE(s) to driver for processing */
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if (ieee80211_11_set_tfs_ie(wpa_s, wpa_s->bssid,
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tfsresp_ie_start,
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tfsresp_ie_len,
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WNM_SLEEP_TFS_RESP_IE_SET))
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wpa_printf(MSG_DEBUG, "WNM: Fail to set TFS Resp IE");
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}
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}
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static void wnm_sleep_mode_exit_success(struct wpa_supplicant *wpa_s,
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const u8 *frm, u16 key_len_total)
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{
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u8 *ptr, *end;
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u8 gtk_len;
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wpa_drv_wnm_oper(wpa_s, WNM_SLEEP_EXIT_CONFIRM, wpa_s->bssid,
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NULL, NULL);
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/* Install GTK/IGTK */
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/* point to key data field */
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ptr = (u8 *) frm + 1 + 2;
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end = ptr + key_len_total;
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wpa_hexdump_key(MSG_DEBUG, "WNM: Key Data", ptr, key_len_total);
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if (key_len_total && !wpa_sm_pmf_enabled(wpa_s->wpa)) {
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wpa_msg(wpa_s, MSG_INFO,
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"WNM: Ignore Key Data in WNM-Sleep Mode Response - PMF not enabled");
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return;
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}
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while (end - ptr > 1) {
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if (2 + ptr[1] > end - ptr) {
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wpa_printf(MSG_DEBUG, "WNM: Invalid Key Data element "
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"length");
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if (end > ptr) {
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wpa_hexdump(MSG_DEBUG, "WNM: Remaining data",
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ptr, end - ptr);
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}
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break;
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}
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if (*ptr == WNM_SLEEP_SUBELEM_GTK) {
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if (ptr[1] < 11 + 5) {
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wpa_printf(MSG_DEBUG, "WNM: Too short GTK "
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"subelem");
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break;
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}
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gtk_len = *(ptr + 4);
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if (ptr[1] < 11 + gtk_len ||
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gtk_len < 5 || gtk_len > 32) {
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wpa_printf(MSG_DEBUG, "WNM: Invalid GTK "
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"subelem");
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break;
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}
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wpa_wnmsleep_install_key(
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wpa_s->wpa,
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WNM_SLEEP_SUBELEM_GTK,
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ptr);
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ptr += 13 + gtk_len;
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} else if (*ptr == WNM_SLEEP_SUBELEM_IGTK) {
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if (ptr[1] < 2 + 6 + WPA_IGTK_LEN) {
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wpa_printf(MSG_DEBUG, "WNM: Too short IGTK "
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"subelem");
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break;
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}
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wpa_wnmsleep_install_key(wpa_s->wpa,
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WNM_SLEEP_SUBELEM_IGTK, ptr);
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ptr += 10 + WPA_IGTK_LEN;
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} else if (*ptr == WNM_SLEEP_SUBELEM_BIGTK) {
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if (ptr[1] < 2 + 6 + WPA_BIGTK_LEN) {
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wpa_printf(MSG_DEBUG,
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"WNM: Too short BIGTK subelem");
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break;
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}
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wpa_wnmsleep_install_key(wpa_s->wpa,
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WNM_SLEEP_SUBELEM_BIGTK, ptr);
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ptr += 10 + WPA_BIGTK_LEN;
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} else
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break; /* skip the loop */
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}
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}
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static void ieee802_11_rx_wnmsleep_resp(struct wpa_supplicant *wpa_s,
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const u8 *frm, int len)
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{
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/*
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* Action [1] | Dialog Token [1] | Key Data Len [2] | Key Data |
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* WNM-Sleep Mode IE | TFS Response IE
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*/
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const u8 *pos = frm; /* point to payload after the action field */
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u16 key_len_total;
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struct wnm_sleep_element *wnmsleep_ie = NULL;
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/* multiple TFS Resp IE (assuming consecutive) */
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const u8 *tfsresp_ie_start = NULL;
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const u8 *tfsresp_ie_end = NULL;
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#ifdef CONFIG_OCV
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const u8 *oci_ie = NULL;
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u8 oci_ie_len = 0;
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#endif /* CONFIG_OCV */
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size_t left;
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if (!wpa_s->wnmsleep_used) {
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wpa_printf(MSG_DEBUG,
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"WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode operation has not been requested");
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return;
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}
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if (len < 3)
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return;
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key_len_total = WPA_GET_LE16(frm + 1);
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|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM-Sleep Mode Response token=%u key_len_total=%d",
|
|
|
|
frm[0], key_len_total);
|
|
|
|
left = len - 3;
|
|
|
|
if (key_len_total > left) {
|
|
|
|
wpa_printf(MSG_INFO, "WNM: Too short frame for Key Data field");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
pos += 3 + key_len_total;
|
|
|
|
while (pos - frm + 1 < len) {
|
|
|
|
u8 ie_len = *(pos + 1);
|
|
|
|
if (2 + ie_len > frm + len - pos) {
|
|
|
|
wpa_printf(MSG_INFO, "WNM: Invalid IE len %u", ie_len);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
wpa_hexdump(MSG_DEBUG, "WNM: Element", pos, 2 + ie_len);
|
|
|
|
if (*pos == WLAN_EID_WNMSLEEP && ie_len >= 4)
|
|
|
|
wnmsleep_ie = (struct wnm_sleep_element *) pos;
|
|
|
|
else if (*pos == WLAN_EID_TFS_RESP) {
|
|
|
|
if (!tfsresp_ie_start)
|
|
|
|
tfsresp_ie_start = pos;
|
|
|
|
tfsresp_ie_end = pos;
|
|
|
|
#ifdef CONFIG_OCV
|
|
|
|
} else if (*pos == WLAN_EID_EXTENSION && ie_len >= 1 &&
|
|
|
|
pos[2] == WLAN_EID_EXT_OCV_OCI) {
|
|
|
|
oci_ie = pos + 3;
|
|
|
|
oci_ie_len = ie_len - 1;
|
|
|
|
#endif /* CONFIG_OCV */
|
|
|
|
} else
|
|
|
|
wpa_printf(MSG_DEBUG, "EID %d not recognized", *pos);
|
|
|
|
pos += ie_len + 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!wnmsleep_ie) {
|
|
|
|
wpa_printf(MSG_DEBUG, "No WNM-Sleep IE found");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_OCV
|
|
|
|
if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_EXIT &&
|
|
|
|
wpa_sm_ocv_enabled(wpa_s->wpa)) {
|
|
|
|
struct wpa_channel_info ci;
|
|
|
|
|
|
|
|
if (wpa_drv_channel_info(wpa_s, &ci) != 0) {
|
|
|
|
wpa_msg(wpa_s, MSG_WARNING,
|
|
|
|
"Failed to get channel info to validate received OCI in WNM-Sleep Mode frame");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ocv_verify_tx_params(oci_ie, oci_ie_len, &ci,
|
|
|
|
channel_width_to_int(ci.chanwidth),
|
|
|
|
ci.seg1_idx) != OCI_SUCCESS) {
|
|
|
|
wpa_msg(wpa_s, MSG_WARNING, "WNM: OCV failed: %s",
|
|
|
|
ocv_errorstr);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_OCV */
|
|
|
|
|
|
|
|
wpa_s->wnmsleep_used = 0;
|
|
|
|
|
|
|
|
if (wnmsleep_ie->status == WNM_STATUS_SLEEP_ACCEPT ||
|
|
|
|
wnmsleep_ie->status == WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Successfully recv WNM-Sleep Response "
|
|
|
|
"frame (action=%d, intval=%d)",
|
|
|
|
wnmsleep_ie->action_type, wnmsleep_ie->intval);
|
|
|
|
if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_ENTER) {
|
|
|
|
wnm_sleep_mode_enter_success(wpa_s, tfsresp_ie_start,
|
|
|
|
tfsresp_ie_end);
|
|
|
|
} else if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_EXIT) {
|
|
|
|
wnm_sleep_mode_exit_success(wpa_s, frm, key_len_total);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
wpa_printf(MSG_DEBUG, "Reject recv WNM-Sleep Response frame "
|
|
|
|
"(action=%d, intval=%d)",
|
|
|
|
wnmsleep_ie->action_type, wnmsleep_ie->intval);
|
|
|
|
if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_ENTER)
|
|
|
|
wpa_drv_wnm_oper(wpa_s, WNM_SLEEP_ENTER_FAIL,
|
|
|
|
wpa_s->bssid, NULL, NULL);
|
|
|
|
else if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_EXIT)
|
|
|
|
wpa_drv_wnm_oper(wpa_s, WNM_SLEEP_EXIT_FAIL,
|
|
|
|
wpa_s->bssid, NULL, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void wnm_deallocate_memory(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++) {
|
|
|
|
os_free(wpa_s->wnm_neighbor_report_elements[i].meas_pilot);
|
|
|
|
os_free(wpa_s->wnm_neighbor_report_elements[i].mul_bssid);
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_s->wnm_num_neighbor_report = 0;
|
|
|
|
os_free(wpa_s->wnm_neighbor_report_elements);
|
|
|
|
wpa_s->wnm_neighbor_report_elements = NULL;
|
|
|
|
|
|
|
|
wpabuf_free(wpa_s->coloc_intf_elems);
|
|
|
|
wpa_s->coloc_intf_elems = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_parse_neighbor_report_elem(struct neighbor_report *rep,
|
|
|
|
u8 id, u8 elen, const u8 *pos)
|
|
|
|
{
|
|
|
|
switch (id) {
|
|
|
|
case WNM_NEIGHBOR_TSF:
|
|
|
|
if (elen < 2 + 2) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short TSF");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
rep->tsf_offset = WPA_GET_LE16(pos);
|
|
|
|
rep->beacon_int = WPA_GET_LE16(pos + 2);
|
|
|
|
rep->tsf_present = 1;
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_CONDENSED_COUNTRY_STRING:
|
|
|
|
if (elen < 2) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short condensed "
|
|
|
|
"country string");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
os_memcpy(rep->country, pos, 2);
|
|
|
|
rep->country_present = 1;
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_BSS_TRANSITION_CANDIDATE:
|
|
|
|
if (elen < 1) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short BSS transition "
|
|
|
|
"candidate");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
rep->preference = pos[0];
|
|
|
|
rep->preference_present = 1;
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_BSS_TERMINATION_DURATION:
|
|
|
|
if (elen < 10) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Too short BSS termination duration");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
rep->bss_term_tsf = WPA_GET_LE64(pos);
|
|
|
|
rep->bss_term_dur = WPA_GET_LE16(pos + 8);
|
|
|
|
rep->bss_term_present = 1;
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_BEARING:
|
|
|
|
if (elen < 8) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short neighbor "
|
|
|
|
"bearing");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
rep->bearing = WPA_GET_LE16(pos);
|
|
|
|
rep->distance = WPA_GET_LE32(pos + 2);
|
|
|
|
rep->rel_height = WPA_GET_LE16(pos + 2 + 4);
|
|
|
|
rep->bearing_present = 1;
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_MEASUREMENT_PILOT:
|
|
|
|
if (elen < 1) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short measurement "
|
|
|
|
"pilot");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
os_free(rep->meas_pilot);
|
|
|
|
rep->meas_pilot = os_zalloc(sizeof(struct measurement_pilot));
|
|
|
|
if (rep->meas_pilot == NULL)
|
|
|
|
break;
|
|
|
|
rep->meas_pilot->measurement_pilot = pos[0];
|
|
|
|
rep->meas_pilot->subelem_len = elen - 1;
|
|
|
|
os_memcpy(rep->meas_pilot->subelems, pos + 1, elen - 1);
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_RRM_ENABLED_CAPABILITIES:
|
|
|
|
if (elen < 5) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short RRM enabled "
|
|
|
|
"capabilities");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
os_memcpy(rep->rm_capab, pos, 5);
|
|
|
|
rep->rm_capab_present = 1;
|
|
|
|
break;
|
|
|
|
case WNM_NEIGHBOR_MULTIPLE_BSSID:
|
|
|
|
if (elen < 1) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short multiple BSSID");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
os_free(rep->mul_bssid);
|
|
|
|
rep->mul_bssid = os_zalloc(sizeof(struct multiple_bssid));
|
|
|
|
if (rep->mul_bssid == NULL)
|
|
|
|
break;
|
|
|
|
rep->mul_bssid->max_bssid_indicator = pos[0];
|
|
|
|
rep->mul_bssid->subelem_len = elen - 1;
|
|
|
|
os_memcpy(rep->mul_bssid->subelems, pos + 1, elen - 1);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int wnm_nei_get_chan(struct wpa_supplicant *wpa_s, u8 op_class, u8 chan)
|
|
|
|
{
|
|
|
|
struct wpa_bss *bss = wpa_s->current_bss;
|
|
|
|
const char *country = NULL;
|
|
|
|
int freq;
|
|
|
|
|
|
|
|
if (bss) {
|
|
|
|
const u8 *elem = wpa_bss_get_ie(bss, WLAN_EID_COUNTRY);
|
|
|
|
|
|
|
|
if (elem && elem[1] >= 2)
|
|
|
|
country = (const char *) (elem + 2);
|
|
|
|
}
|
|
|
|
|
|
|
|
freq = ieee80211_chan_to_freq(country, op_class, chan);
|
|
|
|
if (freq <= 0 && op_class == 0) {
|
|
|
|
/*
|
|
|
|
* Some APs do not advertise correct operating class
|
|
|
|
* information. Try to determine the most likely operating
|
|
|
|
* frequency based on the channel number.
|
|
|
|
*/
|
|
|
|
if (chan >= 1 && chan <= 13)
|
|
|
|
freq = 2407 + chan * 5;
|
|
|
|
else if (chan == 14)
|
|
|
|
freq = 2484;
|
|
|
|
else if (chan >= 36 && chan <= 177)
|
|
|
|
freq = 5000 + chan * 5;
|
|
|
|
}
|
|
|
|
return freq;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_parse_neighbor_report(struct wpa_supplicant *wpa_s,
|
|
|
|
const u8 *pos, u8 len,
|
|
|
|
struct neighbor_report *rep)
|
|
|
|
{
|
|
|
|
u8 left = len;
|
|
|
|
|
|
|
|
if (left < 13) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short neighbor report");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
os_memcpy(rep->bssid, pos, ETH_ALEN);
|
|
|
|
rep->bssid_info = WPA_GET_LE32(pos + ETH_ALEN);
|
|
|
|
rep->regulatory_class = *(pos + 10);
|
|
|
|
rep->channel_number = *(pos + 11);
|
|
|
|
rep->phy_type = *(pos + 12);
|
|
|
|
|
|
|
|
pos += 13;
|
|
|
|
left -= 13;
|
|
|
|
|
|
|
|
while (left >= 2) {
|
|
|
|
u8 id, elen;
|
|
|
|
|
|
|
|
id = *pos++;
|
|
|
|
elen = *pos++;
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Subelement id=%u len=%u", id, elen);
|
|
|
|
left -= 2;
|
|
|
|
if (elen > left) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Truncated neighbor report subelement");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
wnm_parse_neighbor_report_elem(rep, id, elen, pos);
|
|
|
|
left -= elen;
|
|
|
|
pos += elen;
|
|
|
|
}
|
|
|
|
|
|
|
|
rep->freq = wnm_nei_get_chan(wpa_s, rep->regulatory_class,
|
|
|
|
rep->channel_number);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_clear_acceptable(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++)
|
|
|
|
wpa_s->wnm_neighbor_report_elements[i].acceptable = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static struct wpa_bss * get_first_acceptable(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
struct neighbor_report *nei;
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++) {
|
|
|
|
nei = &wpa_s->wnm_neighbor_report_elements[i];
|
|
|
|
if (nei->acceptable)
|
|
|
|
return wpa_bss_get_bssid(wpa_s, nei->bssid);
|
|
|
|
}
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
static struct wpa_bss *
|
|
|
|
get_mbo_transition_candidate(struct wpa_supplicant *wpa_s,
|
|
|
|
enum mbo_transition_reject_reason *reason)
|
|
|
|
{
|
|
|
|
struct wpa_bss *target = NULL;
|
|
|
|
struct wpa_bss_trans_info params;
|
|
|
|
struct wpa_bss_candidate_info *info = NULL;
|
|
|
|
struct neighbor_report *nei = wpa_s->wnm_neighbor_report_elements;
|
|
|
|
u8 *first_candidate_bssid = NULL, *pos;
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
params.mbo_transition_reason = wpa_s->wnm_mbo_transition_reason;
|
|
|
|
params.n_candidates = 0;
|
|
|
|
params.bssid = os_calloc(wpa_s->wnm_num_neighbor_report, ETH_ALEN);
|
|
|
|
if (!params.bssid)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
pos = params.bssid;
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; nei++, i++) {
|
|
|
|
if (nei->is_first)
|
|
|
|
first_candidate_bssid = nei->bssid;
|
|
|
|
if (!nei->acceptable)
|
|
|
|
continue;
|
|
|
|
os_memcpy(pos, nei->bssid, ETH_ALEN);
|
|
|
|
pos += ETH_ALEN;
|
|
|
|
params.n_candidates++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!params.n_candidates)
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
info = wpa_drv_get_bss_trans_status(wpa_s, ¶ms);
|
|
|
|
if (!info) {
|
|
|
|
/* If failed to get candidate BSS transition status from driver,
|
|
|
|
* get the first acceptable candidate from wpa_supplicant.
|
|
|
|
*/
|
|
|
|
target = wpa_bss_get_bssid(wpa_s, params.bssid);
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Get the first acceptable candidate from driver */
|
|
|
|
for (i = 0; i < info->num; i++) {
|
|
|
|
if (info->candidates[i].is_accept) {
|
|
|
|
target = wpa_bss_get_bssid(wpa_s,
|
|
|
|
info->candidates[i].bssid);
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If Disassociation Imminent is set and driver rejects all the
|
|
|
|
* candidate select first acceptable candidate which has
|
|
|
|
* rssi > disassoc_imminent_rssi_threshold
|
|
|
|
*/
|
|
|
|
if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT) {
|
|
|
|
for (i = 0; i < info->num; i++) {
|
|
|
|
target = wpa_bss_get_bssid(wpa_s,
|
|
|
|
info->candidates[i].bssid);
|
|
|
|
if (target &&
|
|
|
|
(target->level <
|
|
|
|
wpa_s->conf->disassoc_imminent_rssi_threshold))
|
|
|
|
continue;
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* While sending BTM reject use reason code of the first candidate
|
|
|
|
* received in BTM request frame
|
|
|
|
*/
|
|
|
|
if (reason) {
|
|
|
|
for (i = 0; i < info->num; i++) {
|
|
|
|
if (first_candidate_bssid &&
|
|
|
|
os_memcmp(first_candidate_bssid,
|
|
|
|
info->candidates[i].bssid, ETH_ALEN) == 0)
|
|
|
|
{
|
|
|
|
*reason = info->candidates[i].reject_reason;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
target = NULL;
|
|
|
|
|
|
|
|
end:
|
|
|
|
os_free(params.bssid);
|
|
|
|
if (info) {
|
|
|
|
os_free(info->candidates);
|
|
|
|
os_free(info);
|
|
|
|
}
|
|
|
|
return target;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
|
|
|
|
|
|
|
|
static struct wpa_bss *
|
|
|
|
compare_scan_neighbor_results(struct wpa_supplicant *wpa_s, os_time_t age_secs,
|
|
|
|
enum mbo_transition_reject_reason *reason)
|
|
|
|
{
|
|
|
|
u8 i;
|
|
|
|
struct wpa_bss *bss = wpa_s->current_bss;
|
|
|
|
struct wpa_bss *target;
|
|
|
|
|
|
|
|
if (!bss)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Current BSS " MACSTR " RSSI %d",
|
|
|
|
MAC2STR(wpa_s->bssid), bss->level);
|
|
|
|
|
|
|
|
wnm_clear_acceptable(wpa_s);
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++) {
|
|
|
|
struct neighbor_report *nei;
|
|
|
|
|
|
|
|
nei = &wpa_s->wnm_neighbor_report_elements[i];
|
|
|
|
if (nei->preference_present && nei->preference == 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Skip excluded BSS " MACSTR,
|
|
|
|
MAC2STR(nei->bssid));
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
target = wpa_bss_get_bssid(wpa_s, nei->bssid);
|
|
|
|
if (!target) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Candidate BSS " MACSTR
|
|
|
|
" (pref %d) not found in scan results",
|
|
|
|
MAC2STR(nei->bssid),
|
|
|
|
nei->preference_present ? nei->preference :
|
|
|
|
-1);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (age_secs) {
|
|
|
|
struct os_reltime now;
|
|
|
|
|
|
|
|
if (os_get_reltime(&now) == 0 &&
|
|
|
|
os_reltime_expired(&now, &target->last_update,
|
|
|
|
age_secs)) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"Candidate BSS is more than %ld seconds old",
|
|
|
|
age_secs);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bss->ssid_len != target->ssid_len ||
|
|
|
|
os_memcmp(bss->ssid, target->ssid, bss->ssid_len) != 0) {
|
|
|
|
/*
|
|
|
|
* TODO: Could consider allowing transition to another
|
|
|
|
* ESS if PMF was enabled for the association.
|
|
|
|
*/
|
|
|
|
wpa_printf(MSG_DEBUG, "Candidate BSS " MACSTR
|
|
|
|
" (pref %d) in different ESS",
|
|
|
|
MAC2STR(nei->bssid),
|
|
|
|
nei->preference_present ? nei->preference :
|
|
|
|
-1);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (wpa_s->current_ssid &&
|
|
|
|
!wpa_scan_res_match(wpa_s, 0, target, wpa_s->current_ssid,
|
|
|
|
1, 0)) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Candidate BSS " MACSTR
|
|
|
|
" (pref %d) does not match the current network profile",
|
|
|
|
MAC2STR(nei->bssid),
|
|
|
|
nei->preference_present ? nei->preference :
|
|
|
|
-1);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (wpa_is_bss_tmp_disallowed(wpa_s, target)) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"MBO: Candidate BSS " MACSTR
|
|
|
|
" retry delay is not over yet",
|
|
|
|
MAC2STR(nei->bssid));
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (target->level < bss->level && target->level < -80) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Candidate BSS " MACSTR
|
|
|
|
" (pref %d) does not have sufficient signal level (%d)",
|
|
|
|
MAC2STR(nei->bssid),
|
|
|
|
nei->preference_present ? nei->preference :
|
|
|
|
-1,
|
|
|
|
target->level);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
nei->acceptable = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
if (wpa_s->wnm_mbo_trans_reason_present)
|
|
|
|
target = get_mbo_transition_candidate(wpa_s, reason);
|
|
|
|
else
|
|
|
|
target = get_first_acceptable(wpa_s);
|
|
|
|
#else /* CONFIG_MBO */
|
|
|
|
target = get_first_acceptable(wpa_s);
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
|
|
|
|
if (target) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Found an acceptable preferred transition candidate BSS "
|
|
|
|
MACSTR " (RSSI %d)",
|
|
|
|
MAC2STR(target->bssid), target->level);
|
|
|
|
}
|
|
|
|
|
|
|
|
return target;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int wpa_bss_ies_eq(struct wpa_bss *a, struct wpa_bss *b, u8 eid)
|
|
|
|
{
|
|
|
|
const u8 *ie_a, *ie_b;
|
|
|
|
|
|
|
|
if (!a || !b)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
ie_a = wpa_bss_get_ie(a, eid);
|
|
|
|
ie_b = wpa_bss_get_ie(b, eid);
|
|
|
|
|
|
|
|
if (!ie_a || !ie_b || ie_a[1] != ie_b[1])
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return os_memcmp(ie_a, ie_b, ie_a[1]) == 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static u32 wnm_get_bss_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
|
|
|
|
{
|
|
|
|
u32 info = 0;
|
|
|
|
|
|
|
|
info |= NEI_REP_BSSID_INFO_AP_UNKNOWN_REACH;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Leave the security and key scope bits unset to indicate that the
|
|
|
|
* security information is not available.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (bss->caps & WLAN_CAPABILITY_SPECTRUM_MGMT)
|
|
|
|
info |= NEI_REP_BSSID_INFO_SPECTRUM_MGMT;
|
|
|
|
if (bss->caps & WLAN_CAPABILITY_QOS)
|
|
|
|
info |= NEI_REP_BSSID_INFO_QOS;
|
|
|
|
if (bss->caps & WLAN_CAPABILITY_APSD)
|
|
|
|
info |= NEI_REP_BSSID_INFO_APSD;
|
|
|
|
if (bss->caps & WLAN_CAPABILITY_RADIO_MEASUREMENT)
|
|
|
|
info |= NEI_REP_BSSID_INFO_RM;
|
|
|
|
if (bss->caps & WLAN_CAPABILITY_DELAYED_BLOCK_ACK)
|
|
|
|
info |= NEI_REP_BSSID_INFO_DELAYED_BA;
|
|
|
|
if (bss->caps & WLAN_CAPABILITY_IMM_BLOCK_ACK)
|
|
|
|
info |= NEI_REP_BSSID_INFO_IMM_BA;
|
|
|
|
if (wpa_bss_ies_eq(bss, wpa_s->current_bss, WLAN_EID_MOBILITY_DOMAIN))
|
|
|
|
info |= NEI_REP_BSSID_INFO_MOBILITY_DOMAIN;
|
|
|
|
if (wpa_bss_ies_eq(bss, wpa_s->current_bss, WLAN_EID_HT_CAP))
|
|
|
|
info |= NEI_REP_BSSID_INFO_HT;
|
|
|
|
|
|
|
|
return info;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int wnm_add_nei_rep(struct wpabuf **buf, const u8 *bssid,
|
|
|
|
u32 bss_info, u8 op_class, u8 chan, u8 phy_type,
|
|
|
|
u8 pref)
|
|
|
|
{
|
|
|
|
if (wpabuf_len(*buf) + 18 >
|
|
|
|
IEEE80211_MAX_MMPDU_SIZE - IEEE80211_HDRLEN) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: No room in frame for Neighbor Report element");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (wpabuf_resize(buf, 18) < 0) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Failed to allocate memory for Neighbor Report element");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpabuf_put_u8(*buf, WLAN_EID_NEIGHBOR_REPORT);
|
|
|
|
/* length: 13 for basic neighbor report + 3 for preference subelement */
|
|
|
|
wpabuf_put_u8(*buf, 16);
|
|
|
|
wpabuf_put_data(*buf, bssid, ETH_ALEN);
|
|
|
|
wpabuf_put_le32(*buf, bss_info);
|
|
|
|
wpabuf_put_u8(*buf, op_class);
|
|
|
|
wpabuf_put_u8(*buf, chan);
|
|
|
|
wpabuf_put_u8(*buf, phy_type);
|
|
|
|
wpabuf_put_u8(*buf, WNM_NEIGHBOR_BSS_TRANSITION_CANDIDATE);
|
|
|
|
wpabuf_put_u8(*buf, 1);
|
|
|
|
wpabuf_put_u8(*buf, pref);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int wnm_nei_rep_add_bss(struct wpa_supplicant *wpa_s,
|
|
|
|
struct wpa_bss *bss, struct wpabuf **buf,
|
|
|
|
u8 pref)
|
|
|
|
{
|
|
|
|
const u8 *ie;
|
|
|
|
u8 op_class, chan;
|
|
|
|
int sec_chan = 0, vht = 0;
|
|
|
|
enum phy_type phy_type;
|
|
|
|
u32 info;
|
|
|
|
struct ieee80211_ht_operation *ht_oper = NULL;
|
|
|
|
struct ieee80211_vht_operation *vht_oper = NULL;
|
|
|
|
|
|
|
|
ie = wpa_bss_get_ie(bss, WLAN_EID_HT_OPERATION);
|
|
|
|
if (ie && ie[1] >= 2) {
|
|
|
|
ht_oper = (struct ieee80211_ht_operation *) (ie + 2);
|
|
|
|
|
|
|
|
if (ht_oper->ht_param & HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
|
|
|
|
sec_chan = 1;
|
|
|
|
else if (ht_oper->ht_param &
|
|
|
|
HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
|
|
|
|
sec_chan = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
ie = wpa_bss_get_ie(bss, WLAN_EID_VHT_OPERATION);
|
|
|
|
if (ie && ie[1] >= 1) {
|
|
|
|
vht_oper = (struct ieee80211_vht_operation *) (ie + 2);
|
|
|
|
|
|
|
|
if (vht_oper->vht_op_info_chwidth == CHANWIDTH_80MHZ ||
|
|
|
|
vht_oper->vht_op_info_chwidth == CHANWIDTH_160MHZ ||
|
|
|
|
vht_oper->vht_op_info_chwidth == CHANWIDTH_80P80MHZ)
|
|
|
|
vht = vht_oper->vht_op_info_chwidth;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ieee80211_freq_to_channel_ext(bss->freq, sec_chan, vht, &op_class,
|
|
|
|
&chan) == NUM_HOSTAPD_MODES) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Cannot determine operating class and channel");
|
|
|
|
return -2;
|
|
|
|
}
|
|
|
|
|
|
|
|
phy_type = ieee80211_get_phy_type(bss->freq, (ht_oper != NULL),
|
|
|
|
(vht_oper != NULL));
|
|
|
|
if (phy_type == PHY_TYPE_UNSPECIFIED) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Cannot determine BSS phy type for Neighbor Report");
|
|
|
|
return -2;
|
|
|
|
}
|
|
|
|
|
|
|
|
info = wnm_get_bss_info(wpa_s, bss);
|
|
|
|
|
|
|
|
return wnm_add_nei_rep(buf, bss->bssid, info, op_class, chan, phy_type,
|
|
|
|
pref);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_add_cand_list(struct wpa_supplicant *wpa_s, struct wpabuf **buf)
|
|
|
|
{
|
|
|
|
unsigned int i, pref = 255;
|
|
|
|
struct os_reltime now;
|
|
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
|
|
|
|
|
|
if (!ssid)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* TODO: Define when scan results are no longer valid for the candidate
|
|
|
|
* list.
|
|
|
|
*/
|
|
|
|
os_get_reltime(&now);
|
|
|
|
if (os_reltime_expired(&now, &wpa_s->last_scan, 10))
|
|
|
|
return;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Add candidate list to BSS Transition Management Response frame");
|
|
|
|
for (i = 0; i < wpa_s->last_scan_res_used && pref; i++) {
|
|
|
|
struct wpa_bss *bss = wpa_s->last_scan_res[i];
|
|
|
|
int res;
|
|
|
|
|
|
|
|
if (wpa_scan_res_match(wpa_s, i, bss, ssid, 1, 0)) {
|
|
|
|
res = wnm_nei_rep_add_bss(wpa_s, bss, buf, pref--);
|
|
|
|
if (res == -2)
|
|
|
|
continue; /* could not build entry for BSS */
|
|
|
|
if (res < 0)
|
|
|
|
break; /* no more room for candidates */
|
|
|
|
if (pref == 1)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_hexdump_buf(MSG_DEBUG,
|
|
|
|
"WNM: BSS Transition Management Response candidate list",
|
|
|
|
*buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#define BTM_RESP_MIN_SIZE 5 + ETH_ALEN
|
|
|
|
|
|
|
|
static void wnm_send_bss_transition_mgmt_resp(
|
|
|
|
struct wpa_supplicant *wpa_s, u8 dialog_token,
|
|
|
|
enum bss_trans_mgmt_status_code status,
|
|
|
|
enum mbo_transition_reject_reason reason,
|
|
|
|
u8 delay, const u8 *target_bssid)
|
|
|
|
{
|
|
|
|
struct wpabuf *buf;
|
|
|
|
int res;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Send BSS Transition Management Response to " MACSTR
|
|
|
|
" dialog_token=%u status=%u reason=%u delay=%d",
|
|
|
|
MAC2STR(wpa_s->bssid), dialog_token, status, reason, delay);
|
|
|
|
if (!wpa_s->current_bss) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Current BSS not known - drop response");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
buf = wpabuf_alloc(BTM_RESP_MIN_SIZE);
|
|
|
|
if (!buf) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Failed to allocate memory for BTM response");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_s->bss_tm_status = status;
|
|
|
|
wpas_notify_bss_tm_status(wpa_s);
|
|
|
|
|
|
|
|
wpabuf_put_u8(buf, WLAN_ACTION_WNM);
|
|
|
|
wpabuf_put_u8(buf, WNM_BSS_TRANS_MGMT_RESP);
|
|
|
|
wpabuf_put_u8(buf, dialog_token);
|
|
|
|
wpabuf_put_u8(buf, status);
|
|
|
|
wpabuf_put_u8(buf, delay);
|
|
|
|
if (target_bssid) {
|
|
|
|
wpabuf_put_data(buf, target_bssid, ETH_ALEN);
|
|
|
|
} else if (status == WNM_BSS_TM_ACCEPT) {
|
|
|
|
/*
|
|
|
|
* P802.11-REVmc clarifies that the Target BSSID field is always
|
|
|
|
* present when status code is zero, so use a fake value here if
|
|
|
|
* no BSSID is yet known.
|
|
|
|
*/
|
|
|
|
wpabuf_put_data(buf, "\0\0\0\0\0\0", ETH_ALEN);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (status == WNM_BSS_TM_ACCEPT)
|
|
|
|
wnm_add_cand_list(wpa_s, &buf);
|
|
|
|
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
if (status != WNM_BSS_TM_ACCEPT &&
|
|
|
|
wpa_bss_get_vendor_ie(wpa_s->current_bss, MBO_IE_VENDOR_TYPE)) {
|
|
|
|
u8 mbo[10];
|
|
|
|
size_t ret;
|
|
|
|
|
|
|
|
ret = wpas_mbo_ie_bss_trans_reject(wpa_s, mbo, sizeof(mbo),
|
|
|
|
reason);
|
|
|
|
if (ret) {
|
|
|
|
if (wpabuf_resize(&buf, ret) < 0) {
|
|
|
|
wpabuf_free(buf);
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Failed to allocate memory for MBO IE");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpabuf_put_data(buf, mbo, ret);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
|
|
|
|
res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
|
|
|
|
wpa_s->own_addr, wpa_s->bssid,
|
|
|
|
wpabuf_head_u8(buf), wpabuf_len(buf), 0);
|
|
|
|
if (res < 0) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Failed to send BSS Transition Management Response");
|
|
|
|
}
|
|
|
|
|
|
|
|
wpabuf_free(buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_bss_tm_connect(struct wpa_supplicant *wpa_s,
|
|
|
|
struct wpa_bss *bss, struct wpa_ssid *ssid,
|
|
|
|
int after_new_scan)
|
|
|
|
{
|
2022-01-18 16:15:25 +00:00
|
|
|
struct wpa_radio_work *already_connecting;
|
|
|
|
|
2022-01-17 21:12:36 +00:00
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: Transition to BSS " MACSTR
|
|
|
|
" based on BSS Transition Management Request (old BSSID "
|
|
|
|
MACSTR " after_new_scan=%d)",
|
|
|
|
MAC2STR(bss->bssid), MAC2STR(wpa_s->bssid), after_new_scan);
|
|
|
|
|
|
|
|
/* Send the BSS Management Response - Accept */
|
|
|
|
if (wpa_s->wnm_reply) {
|
|
|
|
wpa_s->wnm_reply = 0;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Sending successful BSS Transition Management Response");
|
|
|
|
wnm_send_bss_transition_mgmt_resp(
|
|
|
|
wpa_s, wpa_s->wnm_dialog_token, WNM_BSS_TM_ACCEPT,
|
|
|
|
MBO_TRANSITION_REJECT_REASON_UNSPECIFIED, 0,
|
|
|
|
bss->bssid);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bss == wpa_s->current_bss) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Already associated with the preferred candidate");
|
|
|
|
wnm_deallocate_memory(wpa_s);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2022-01-18 16:15:25 +00:00
|
|
|
already_connecting = radio_work_pending(wpa_s, "sme-connect");
|
2022-01-17 21:12:36 +00:00
|
|
|
wpa_s->reassociate = 1;
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Issuing connect");
|
|
|
|
wpa_supplicant_connect(wpa_s, bss, ssid);
|
2022-01-18 16:15:25 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Indicate that a BSS transition is in progress so scan results that
|
|
|
|
* come in before the 'sme-connect' radio work gets executed do not
|
|
|
|
* override the original connection attempt.
|
|
|
|
*/
|
|
|
|
if (!already_connecting && radio_work_pending(wpa_s, "sme-connect"))
|
|
|
|
wpa_s->bss_trans_mgmt_in_progress = true;
|
2022-01-17 21:12:36 +00:00
|
|
|
wnm_deallocate_memory(wpa_s);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int wnm_scan_process(struct wpa_supplicant *wpa_s, int reply_on_fail)
|
|
|
|
{
|
|
|
|
struct wpa_bss *bss;
|
|
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
|
|
enum bss_trans_mgmt_status_code status = WNM_BSS_TM_REJECT_UNSPECIFIED;
|
|
|
|
enum mbo_transition_reject_reason reason =
|
|
|
|
MBO_TRANSITION_REJECT_REASON_UNSPECIFIED;
|
|
|
|
|
|
|
|
if (!wpa_s->wnm_neighbor_report_elements)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: Process scan results for BSS Transition Management");
|
|
|
|
if (os_reltime_before(&wpa_s->wnm_cand_valid_until,
|
|
|
|
&wpa_s->scan_trigger_time)) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Previously stored BSS transition candidate list is not valid anymore - drop it");
|
|
|
|
wnm_deallocate_memory(wpa_s);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!wpa_s->current_bss ||
|
|
|
|
os_memcmp(wpa_s->wnm_cand_from_bss, wpa_s->current_bss->bssid,
|
|
|
|
ETH_ALEN) != 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Stored BSS transition candidate list not from the current BSS - ignore it");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Compare the Neighbor Report and scan results */
|
|
|
|
bss = compare_scan_neighbor_results(wpa_s, 0, &reason);
|
|
|
|
if (!bss) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: No BSS transition candidate match found");
|
|
|
|
status = WNM_BSS_TM_REJECT_NO_SUITABLE_CANDIDATES;
|
|
|
|
goto send_bss_resp_fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Associate to the network */
|
|
|
|
wnm_bss_tm_connect(wpa_s, bss, ssid, 1);
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
send_bss_resp_fail:
|
|
|
|
if (!reply_on_fail)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* Send reject response for all the failures */
|
|
|
|
|
|
|
|
if (wpa_s->wnm_reply) {
|
|
|
|
wpa_s->wnm_reply = 0;
|
|
|
|
wnm_send_bss_transition_mgmt_resp(wpa_s,
|
|
|
|
wpa_s->wnm_dialog_token,
|
|
|
|
status, reason, 0, NULL);
|
|
|
|
}
|
|
|
|
wnm_deallocate_memory(wpa_s);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int cand_pref_compar(const void *a, const void *b)
|
|
|
|
{
|
|
|
|
const struct neighbor_report *aa = a;
|
|
|
|
const struct neighbor_report *bb = b;
|
|
|
|
|
|
|
|
if (!aa->preference_present && !bb->preference_present)
|
|
|
|
return 0;
|
|
|
|
if (!aa->preference_present)
|
|
|
|
return 1;
|
|
|
|
if (!bb->preference_present)
|
|
|
|
return -1;
|
|
|
|
if (bb->preference > aa->preference)
|
|
|
|
return 1;
|
|
|
|
if (bb->preference < aa->preference)
|
|
|
|
return -1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_sort_cand_list(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
if (!wpa_s->wnm_neighbor_report_elements)
|
|
|
|
return;
|
|
|
|
qsort(wpa_s->wnm_neighbor_report_elements,
|
|
|
|
wpa_s->wnm_num_neighbor_report, sizeof(struct neighbor_report),
|
|
|
|
cand_pref_compar);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_dump_cand_list(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: BSS Transition Candidate List");
|
|
|
|
if (!wpa_s->wnm_neighbor_report_elements)
|
|
|
|
return;
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++) {
|
|
|
|
struct neighbor_report *nei;
|
|
|
|
|
|
|
|
nei = &wpa_s->wnm_neighbor_report_elements[i];
|
|
|
|
wpa_printf(MSG_DEBUG, "%u: " MACSTR
|
|
|
|
" info=0x%x op_class=%u chan=%u phy=%u pref=%d freq=%d",
|
|
|
|
i, MAC2STR(nei->bssid), nei->bssid_info,
|
|
|
|
nei->regulatory_class,
|
|
|
|
nei->channel_number, nei->phy_type,
|
|
|
|
nei->preference_present ? nei->preference : -1,
|
|
|
|
nei->freq);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int chan_supported(struct wpa_supplicant *wpa_s, int freq)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->hw.num_modes; i++) {
|
|
|
|
struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
|
|
|
|
int j;
|
|
|
|
|
|
|
|
for (j = 0; j < mode->num_channels; j++) {
|
|
|
|
struct hostapd_channel_data *chan;
|
|
|
|
|
|
|
|
chan = &mode->channels[j];
|
|
|
|
if (chan->freq == freq &&
|
|
|
|
!(chan->flag & HOSTAPD_CHAN_DISABLED))
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wnm_set_scan_freqs(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
int *freqs;
|
|
|
|
int num_freqs = 0;
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
if (!wpa_s->wnm_neighbor_report_elements)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (wpa_s->hw.modes == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
os_free(wpa_s->next_scan_freqs);
|
|
|
|
wpa_s->next_scan_freqs = NULL;
|
|
|
|
|
|
|
|
freqs = os_calloc(wpa_s->wnm_num_neighbor_report + 1, sizeof(int));
|
|
|
|
if (freqs == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++) {
|
|
|
|
struct neighbor_report *nei;
|
|
|
|
|
|
|
|
nei = &wpa_s->wnm_neighbor_report_elements[i];
|
|
|
|
if (nei->freq <= 0) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Unknown neighbor operating frequency for "
|
|
|
|
MACSTR " - scan all channels",
|
|
|
|
MAC2STR(nei->bssid));
|
|
|
|
os_free(freqs);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (chan_supported(wpa_s, nei->freq))
|
|
|
|
add_freq(freqs, &num_freqs, nei->freq);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (num_freqs == 0) {
|
|
|
|
os_free(freqs);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Scan %d frequencies based on transition candidate list",
|
|
|
|
num_freqs);
|
|
|
|
wpa_s->next_scan_freqs = freqs;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int wnm_fetch_scan_results(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
struct wpa_scan_results *scan_res;
|
|
|
|
struct wpa_bss *bss;
|
|
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
|
|
u8 i, found = 0;
|
|
|
|
size_t j;
|
|
|
|
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: Fetch current scan results from the driver for checking transition candidates");
|
|
|
|
scan_res = wpa_drv_get_scan_results2(wpa_s);
|
|
|
|
if (!scan_res) {
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "WNM: Failed to get scan results");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (scan_res->fetch_time.sec == 0)
|
|
|
|
os_get_reltime(&scan_res->fetch_time);
|
|
|
|
|
|
|
|
filter_scan_res(wpa_s, scan_res);
|
|
|
|
|
|
|
|
for (i = 0; i < wpa_s->wnm_num_neighbor_report; i++) {
|
|
|
|
struct neighbor_report *nei;
|
|
|
|
|
|
|
|
nei = &wpa_s->wnm_neighbor_report_elements[i];
|
|
|
|
if (nei->preference_present && nei->preference == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
for (j = 0; j < scan_res->num; j++) {
|
|
|
|
struct wpa_scan_res *res;
|
|
|
|
const u8 *ssid_ie;
|
|
|
|
|
|
|
|
res = scan_res->res[j];
|
|
|
|
if (os_memcmp(nei->bssid, res->bssid, ETH_ALEN) != 0 ||
|
|
|
|
res->age > WNM_SCAN_RESULT_AGE * 1000)
|
|
|
|
continue;
|
|
|
|
bss = wpa_s->current_bss;
|
|
|
|
ssid_ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
|
|
|
|
if (bss && ssid_ie && ssid_ie[1] &&
|
|
|
|
(bss->ssid_len != ssid_ie[1] ||
|
|
|
|
os_memcmp(bss->ssid, ssid_ie + 2,
|
|
|
|
bss->ssid_len) != 0))
|
|
|
|
continue; /* Skip entries for other ESSs */
|
|
|
|
|
|
|
|
/* Potential candidate found */
|
|
|
|
found = 1;
|
|
|
|
scan_snr(res);
|
|
|
|
scan_est_throughput(wpa_s, res);
|
|
|
|
wpa_bss_update_scan_res(wpa_s, res,
|
|
|
|
&scan_res->fetch_time);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_scan_results_free(scan_res);
|
|
|
|
if (!found) {
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: No transition candidate matches existing scan results");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bss = compare_scan_neighbor_results(wpa_s, WNM_SCAN_RESULT_AGE, NULL);
|
|
|
|
if (!bss) {
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: Comparison of scan results against transition candidates did not find matches");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Associate to the network */
|
|
|
|
wnm_bss_tm_connect(wpa_s, bss, ssid, 0);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void ieee802_11_rx_bss_trans_mgmt_req(struct wpa_supplicant *wpa_s,
|
|
|
|
const u8 *pos, const u8 *end,
|
|
|
|
int reply)
|
|
|
|
{
|
|
|
|
unsigned int beacon_int;
|
|
|
|
u8 valid_int;
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
const u8 *vendor;
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
|
|
|
|
if (wpa_s->disable_mbo_oce || wpa_s->conf->disable_btm)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (end - pos < 5)
|
|
|
|
return;
|
|
|
|
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
wpa_s->wnm_mbo_trans_reason_present = 0;
|
|
|
|
wpa_s->wnm_mbo_transition_reason = 0;
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
|
|
|
|
if (wpa_s->current_bss)
|
|
|
|
beacon_int = wpa_s->current_bss->beacon_int;
|
|
|
|
else
|
|
|
|
beacon_int = 100; /* best guess */
|
|
|
|
|
|
|
|
wpa_s->wnm_dialog_token = pos[0];
|
|
|
|
wpa_s->wnm_mode = pos[1];
|
|
|
|
wpa_s->wnm_dissoc_timer = WPA_GET_LE16(pos + 2);
|
|
|
|
valid_int = pos[4];
|
|
|
|
wpa_s->wnm_reply = reply;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management Request: "
|
|
|
|
"dialog_token=%u request_mode=0x%x "
|
|
|
|
"disassoc_timer=%u validity_interval=%u",
|
|
|
|
wpa_s->wnm_dialog_token, wpa_s->wnm_mode,
|
|
|
|
wpa_s->wnm_dissoc_timer, valid_int);
|
|
|
|
|
|
|
|
#if defined(CONFIG_MBO) && defined(CONFIG_TESTING_OPTIONS)
|
|
|
|
if (wpa_s->reject_btm_req_reason) {
|
|
|
|
wpa_printf(MSG_INFO,
|
|
|
|
"WNM: Testing - reject BSS Transition Management Request: reject_btm_req_reason=%d",
|
|
|
|
wpa_s->reject_btm_req_reason);
|
|
|
|
wnm_send_bss_transition_mgmt_resp(
|
|
|
|
wpa_s, wpa_s->wnm_dialog_token,
|
|
|
|
wpa_s->reject_btm_req_reason,
|
|
|
|
MBO_TRANSITION_REJECT_REASON_UNSPECIFIED, 0, NULL);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_MBO && CONFIG_TESTING_OPTIONS */
|
|
|
|
|
|
|
|
pos += 5;
|
|
|
|
|
|
|
|
if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED) {
|
|
|
|
if (end - pos < 12) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Too short BSS TM Request");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
os_memcpy(wpa_s->wnm_bss_termination_duration, pos, 12);
|
|
|
|
pos += 12; /* BSS Termination Duration */
|
|
|
|
}
|
|
|
|
|
|
|
|
if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT) {
|
|
|
|
char url[256];
|
|
|
|
|
|
|
|
if (end - pos < 1 || 1 + pos[0] > end - pos) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Invalid BSS Transition "
|
|
|
|
"Management Request (URL)");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
os_memcpy(url, pos + 1, pos[0]);
|
|
|
|
url[pos[0]] = '\0';
|
|
|
|
pos += 1 + pos[0];
|
|
|
|
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, ESS_DISASSOC_IMMINENT "%d %u %s",
|
|
|
|
wpa_sm_pmf_enabled(wpa_s->wpa),
|
|
|
|
wpa_s->wnm_dissoc_timer * beacon_int * 128 / 125, url);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT) {
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, "WNM: Disassociation Imminent - "
|
|
|
|
"Disassociation Timer %u", wpa_s->wnm_dissoc_timer);
|
|
|
|
if (wpa_s->wnm_dissoc_timer && !wpa_s->scanning) {
|
|
|
|
/* TODO: mark current BSS less preferred for
|
|
|
|
* selection */
|
|
|
|
wpa_printf(MSG_DEBUG, "Trying to find another BSS");
|
|
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
vendor = get_ie(pos, end - pos, WLAN_EID_VENDOR_SPECIFIC);
|
|
|
|
if (vendor)
|
|
|
|
wpas_mbo_ie_trans_req(wpa_s, vendor + 2, vendor[1]);
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
|
|
|
|
if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED) {
|
|
|
|
unsigned int valid_ms;
|
|
|
|
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, "WNM: Preferred List Available");
|
|
|
|
wnm_deallocate_memory(wpa_s);
|
|
|
|
wpa_s->wnm_neighbor_report_elements = os_calloc(
|
|
|
|
WNM_MAX_NEIGHBOR_REPORT,
|
|
|
|
sizeof(struct neighbor_report));
|
|
|
|
if (wpa_s->wnm_neighbor_report_elements == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
while (end - pos >= 2 &&
|
|
|
|
wpa_s->wnm_num_neighbor_report < WNM_MAX_NEIGHBOR_REPORT)
|
|
|
|
{
|
|
|
|
u8 tag = *pos++;
|
|
|
|
u8 len = *pos++;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Neighbor report tag %u",
|
|
|
|
tag);
|
|
|
|
if (len > end - pos) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Truncated request");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (tag == WLAN_EID_NEIGHBOR_REPORT) {
|
|
|
|
struct neighbor_report *rep;
|
|
|
|
rep = &wpa_s->wnm_neighbor_report_elements[
|
|
|
|
wpa_s->wnm_num_neighbor_report];
|
|
|
|
wnm_parse_neighbor_report(wpa_s, pos, len, rep);
|
|
|
|
wpa_s->wnm_num_neighbor_report++;
|
|
|
|
#ifdef CONFIG_MBO
|
|
|
|
if (wpa_s->wnm_mbo_trans_reason_present &&
|
|
|
|
wpa_s->wnm_num_neighbor_report == 1) {
|
|
|
|
rep->is_first = 1;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: First transition candidate is "
|
|
|
|
MACSTR, MAC2STR(rep->bssid));
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_MBO */
|
|
|
|
}
|
|
|
|
|
|
|
|
pos += len;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!wpa_s->wnm_num_neighbor_report) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Candidate list included bit is set, but no candidates found");
|
|
|
|
wnm_send_bss_transition_mgmt_resp(
|
|
|
|
wpa_s, wpa_s->wnm_dialog_token,
|
|
|
|
WNM_BSS_TM_REJECT_NO_SUITABLE_CANDIDATES,
|
|
|
|
MBO_TRANSITION_REJECT_REASON_UNSPECIFIED, 0,
|
|
|
|
NULL);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wnm_sort_cand_list(wpa_s);
|
|
|
|
wnm_dump_cand_list(wpa_s);
|
|
|
|
valid_ms = valid_int * beacon_int * 128 / 125;
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Candidate list valid for %u ms",
|
|
|
|
valid_ms);
|
|
|
|
os_get_reltime(&wpa_s->wnm_cand_valid_until);
|
|
|
|
wpa_s->wnm_cand_valid_until.sec += valid_ms / 1000;
|
|
|
|
wpa_s->wnm_cand_valid_until.usec += (valid_ms % 1000) * 1000;
|
|
|
|
wpa_s->wnm_cand_valid_until.sec +=
|
|
|
|
wpa_s->wnm_cand_valid_until.usec / 1000000;
|
|
|
|
wpa_s->wnm_cand_valid_until.usec %= 1000000;
|
|
|
|
os_memcpy(wpa_s->wnm_cand_from_bss, wpa_s->bssid, ETH_ALEN);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Fetch the latest scan results from the kernel and check for
|
|
|
|
* candidates based on those results first. This can help in
|
|
|
|
* finding more up-to-date information should the driver has
|
|
|
|
* done some internal scanning operations after the last scan
|
|
|
|
* result update in wpa_supplicant.
|
|
|
|
*/
|
|
|
|
if (wnm_fetch_scan_results(wpa_s) > 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Try to use previously received scan results, if they are
|
|
|
|
* recent enough to use for a connection.
|
|
|
|
*/
|
|
|
|
if (wpa_s->last_scan_res_used > 0) {
|
|
|
|
struct os_reltime now;
|
|
|
|
|
|
|
|
os_get_reltime(&now);
|
|
|
|
if (!os_reltime_expired(&now, &wpa_s->last_scan, 10)) {
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Try to use recent scan results");
|
|
|
|
if (wnm_scan_process(wpa_s, 0) > 0)
|
|
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: No match in previous scan results - try a new scan");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
wnm_set_scan_freqs(wpa_s);
|
|
|
|
if (wpa_s->wnm_num_neighbor_report == 1) {
|
|
|
|
os_memcpy(wpa_s->next_scan_bssid,
|
|
|
|
wpa_s->wnm_neighbor_report_elements[0].bssid,
|
|
|
|
ETH_ALEN);
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: Scan only for a specific BSSID since there is only a single candidate "
|
|
|
|
MACSTR, MAC2STR(wpa_s->next_scan_bssid));
|
|
|
|
}
|
|
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
|
|
} else if (reply) {
|
|
|
|
enum bss_trans_mgmt_status_code status;
|
|
|
|
if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT)
|
|
|
|
status = WNM_BSS_TM_ACCEPT;
|
|
|
|
else {
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, "WNM: BSS Transition Management Request did not include candidates");
|
|
|
|
status = WNM_BSS_TM_REJECT_UNSPECIFIED;
|
|
|
|
}
|
|
|
|
wnm_send_bss_transition_mgmt_resp(
|
|
|
|
wpa_s, wpa_s->wnm_dialog_token, status,
|
|
|
|
MBO_TRANSITION_REJECT_REASON_UNSPECIFIED, 0, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#define BTM_QUERY_MIN_SIZE 4
|
|
|
|
|
|
|
|
int wnm_send_bss_transition_mgmt_query(struct wpa_supplicant *wpa_s,
|
|
|
|
u8 query_reason,
|
|
|
|
const char *btm_candidates,
|
|
|
|
int cand_list)
|
|
|
|
{
|
|
|
|
struct wpabuf *buf;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Send BSS Transition Management Query to "
|
|
|
|
MACSTR " query_reason=%u%s",
|
|
|
|
MAC2STR(wpa_s->bssid), query_reason,
|
|
|
|
cand_list ? " candidate list" : "");
|
|
|
|
|
|
|
|
buf = wpabuf_alloc(BTM_QUERY_MIN_SIZE);
|
|
|
|
if (!buf)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
wpabuf_put_u8(buf, WLAN_ACTION_WNM);
|
|
|
|
wpabuf_put_u8(buf, WNM_BSS_TRANS_MGMT_QUERY);
|
|
|
|
wpabuf_put_u8(buf, 1);
|
|
|
|
wpabuf_put_u8(buf, query_reason);
|
|
|
|
|
|
|
|
if (cand_list)
|
|
|
|
wnm_add_cand_list(wpa_s, &buf);
|
|
|
|
|
|
|
|
if (btm_candidates) {
|
|
|
|
const size_t max_len = 1000;
|
|
|
|
|
|
|
|
ret = wpabuf_resize(&buf, max_len);
|
|
|
|
if (ret < 0) {
|
|
|
|
wpabuf_free(buf);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = ieee802_11_parse_candidate_list(btm_candidates,
|
|
|
|
wpabuf_put(buf, 0),
|
|
|
|
max_len);
|
|
|
|
if (ret < 0) {
|
|
|
|
wpabuf_free(buf);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpabuf_put(buf, ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
|
|
|
|
wpa_s->own_addr, wpa_s->bssid,
|
|
|
|
wpabuf_head_u8(buf), wpabuf_len(buf), 0);
|
|
|
|
|
|
|
|
wpabuf_free(buf);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void ieee802_11_rx_wnm_notif_req_wfa(struct wpa_supplicant *wpa_s,
|
|
|
|
const u8 *sa, const u8 *data,
|
|
|
|
int len)
|
|
|
|
{
|
|
|
|
const u8 *pos, *end, *next;
|
|
|
|
u8 ie, ie_len;
|
|
|
|
|
|
|
|
pos = data;
|
|
|
|
end = data + len;
|
|
|
|
|
|
|
|
while (end - pos > 1) {
|
|
|
|
ie = *pos++;
|
|
|
|
ie_len = *pos++;
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: WFA subelement %u len %u",
|
|
|
|
ie, ie_len);
|
|
|
|
if (ie_len > end - pos) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Not enough room for "
|
|
|
|
"subelement");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
next = pos + ie_len;
|
|
|
|
if (ie_len < 4) {
|
|
|
|
pos = next;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Subelement OUI %06x type %u",
|
|
|
|
WPA_GET_BE24(pos), pos[3]);
|
|
|
|
|
|
|
|
#ifdef CONFIG_HS20
|
|
|
|
if (ie == WLAN_EID_VENDOR_SPECIFIC && ie_len >= 5 &&
|
|
|
|
WPA_GET_BE24(pos) == OUI_WFA &&
|
|
|
|
pos[3] == HS20_WNM_SUB_REM_NEEDED) {
|
|
|
|
/* Subscription Remediation subelement */
|
|
|
|
const u8 *ie_end;
|
|
|
|
u8 url_len;
|
|
|
|
char *url;
|
|
|
|
u8 osu_method;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Subscription Remediation "
|
|
|
|
"subelement");
|
|
|
|
ie_end = pos + ie_len;
|
|
|
|
pos += 4;
|
|
|
|
url_len = *pos++;
|
|
|
|
if (url_len == 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: No Server URL included");
|
|
|
|
url = NULL;
|
|
|
|
osu_method = 1;
|
|
|
|
} else {
|
|
|
|
if (url_len + 1 > ie_end - pos) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Not enough room for Server URL (len=%u) and Server Method (left %d)",
|
|
|
|
url_len,
|
|
|
|
(int) (ie_end - pos));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
url = os_malloc(url_len + 1);
|
|
|
|
if (url == NULL)
|
|
|
|
break;
|
|
|
|
os_memcpy(url, pos, url_len);
|
|
|
|
url[url_len] = '\0';
|
|
|
|
osu_method = pos[url_len];
|
|
|
|
}
|
|
|
|
hs20_rx_subscription_remediation(wpa_s, url,
|
|
|
|
osu_method);
|
|
|
|
os_free(url);
|
|
|
|
pos = next;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ie == WLAN_EID_VENDOR_SPECIFIC && ie_len >= 8 &&
|
|
|
|
WPA_GET_BE24(pos) == OUI_WFA &&
|
|
|
|
pos[3] == HS20_WNM_DEAUTH_IMMINENT_NOTICE) {
|
|
|
|
const u8 *ie_end;
|
|
|
|
u8 url_len;
|
|
|
|
char *url;
|
|
|
|
u8 code;
|
|
|
|
u16 reauth_delay;
|
|
|
|
|
|
|
|
ie_end = pos + ie_len;
|
|
|
|
pos += 4;
|
|
|
|
code = *pos++;
|
|
|
|
reauth_delay = WPA_GET_LE16(pos);
|
|
|
|
pos += 2;
|
|
|
|
url_len = *pos++;
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: HS 2.0 Deauthentication "
|
|
|
|
"Imminent - Reason Code %u "
|
|
|
|
"Re-Auth Delay %u URL Length %u",
|
|
|
|
code, reauth_delay, url_len);
|
|
|
|
if (url_len > ie_end - pos)
|
|
|
|
break;
|
|
|
|
url = os_malloc(url_len + 1);
|
|
|
|
if (url == NULL)
|
|
|
|
break;
|
|
|
|
os_memcpy(url, pos, url_len);
|
|
|
|
url[url_len] = '\0';
|
|
|
|
hs20_rx_deauth_imminent_notice(wpa_s, code,
|
|
|
|
reauth_delay, url);
|
|
|
|
os_free(url);
|
|
|
|
pos = next;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ie == WLAN_EID_VENDOR_SPECIFIC && ie_len >= 5 &&
|
|
|
|
WPA_GET_BE24(pos) == OUI_WFA &&
|
|
|
|
pos[3] == HS20_WNM_T_C_ACCEPTANCE) {
|
|
|
|
const u8 *ie_end;
|
|
|
|
u8 url_len;
|
|
|
|
char *url;
|
|
|
|
|
|
|
|
ie_end = pos + ie_len;
|
|
|
|
pos += 4;
|
|
|
|
url_len = *pos++;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
|
|
"WNM: HS 2.0 Terms and Conditions Acceptance (URL Length %u)",
|
|
|
|
url_len);
|
|
|
|
if (url_len > ie_end - pos)
|
|
|
|
break;
|
|
|
|
url = os_malloc(url_len + 1);
|
|
|
|
if (!url)
|
|
|
|
break;
|
|
|
|
os_memcpy(url, pos, url_len);
|
|
|
|
url[url_len] = '\0';
|
|
|
|
hs20_rx_t_c_acceptance(wpa_s, url);
|
|
|
|
os_free(url);
|
|
|
|
pos = next;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_HS20 */
|
|
|
|
|
|
|
|
pos = next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void ieee802_11_rx_wnm_notif_req(struct wpa_supplicant *wpa_s,
|
|
|
|
const u8 *sa, const u8 *frm, int len)
|
|
|
|
{
|
|
|
|
const u8 *pos, *end;
|
|
|
|
u8 dialog_token, type;
|
|
|
|
|
|
|
|
/* Dialog Token [1] | Type [1] | Subelements */
|
|
|
|
|
|
|
|
if (len < 2 || sa == NULL)
|
|
|
|
return;
|
|
|
|
end = frm + len;
|
|
|
|
pos = frm;
|
|
|
|
dialog_token = *pos++;
|
|
|
|
type = *pos++;
|
|
|
|
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "WNM: Received WNM-Notification Request "
|
|
|
|
"(dialog_token %u type %u sa " MACSTR ")",
|
|
|
|
dialog_token, type, MAC2STR(sa));
|
|
|
|
wpa_hexdump(MSG_DEBUG, "WNM-Notification Request subelements",
|
|
|
|
pos, end - pos);
|
|
|
|
|
|
|
|
if (wpa_s->wpa_state != WPA_COMPLETED ||
|
|
|
|
os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0) {
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "WNM: WNM-Notification frame not "
|
|
|
|
"from our AP - ignore it");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
case 1:
|
|
|
|
ieee802_11_rx_wnm_notif_req_wfa(wpa_s, sa, pos, end - pos);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "WNM: Ignore unknown "
|
|
|
|
"WNM-Notification type %u", type);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void ieee802_11_rx_wnm_coloc_intf_req(struct wpa_supplicant *wpa_s,
|
|
|
|
const u8 *sa, const u8 *frm,
|
|
|
|
int len)
|
|
|
|
{
|
|
|
|
u8 dialog_token, req_info, auto_report, timeout;
|
|
|
|
|
|
|
|
if (!wpa_s->conf->coloc_intf_reporting)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* Dialog Token [1] | Request Info [1] */
|
|
|
|
|
|
|
|
if (len < 2)
|
|
|
|
return;
|
|
|
|
dialog_token = frm[0];
|
|
|
|
req_info = frm[1];
|
|
|
|
auto_report = req_info & 0x03;
|
|
|
|
timeout = req_info >> 2;
|
|
|
|
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: Received Collocated Interference Request (dialog_token %u auto_report %u timeout %u sa " MACSTR ")",
|
|
|
|
dialog_token, auto_report, timeout, MAC2STR(sa));
|
|
|
|
|
|
|
|
if (dialog_token == 0)
|
|
|
|
return; /* only nonzero values are used for request */
|
|
|
|
|
|
|
|
if (wpa_s->wpa_state != WPA_COMPLETED ||
|
|
|
|
os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0) {
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
|
|
"WNM: Collocated Interference Request frame not from current AP - ignore it");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, COLOC_INTF_REQ "%u %u %u",
|
|
|
|
dialog_token, auto_report, timeout);
|
|
|
|
wpa_s->coloc_intf_dialog_token = dialog_token;
|
|
|
|
wpa_s->coloc_intf_auto_report = auto_report;
|
|
|
|
wpa_s->coloc_intf_timeout = timeout;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void ieee802_11_rx_wnm_action(struct wpa_supplicant *wpa_s,
|
|
|
|
const struct ieee80211_mgmt *mgmt, size_t len)
|
|
|
|
{
|
|
|
|
const u8 *pos, *end;
|
|
|
|
u8 act;
|
|
|
|
|
|
|
|
if (len < IEEE80211_HDRLEN + 2)
|
|
|
|
return;
|
|
|
|
|
|
|
|
pos = ((const u8 *) mgmt) + IEEE80211_HDRLEN + 1;
|
|
|
|
act = *pos++;
|
|
|
|
end = ((const u8 *) mgmt) + len;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
|
|
|
|
act, MAC2STR(mgmt->sa));
|
|
|
|
if (wpa_s->wpa_state < WPA_ASSOCIATED ||
|
|
|
|
os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) != 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Ignore unexpected WNM Action "
|
|
|
|
"frame");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (act) {
|
|
|
|
case WNM_BSS_TRANS_MGMT_REQ:
|
|
|
|
ieee802_11_rx_bss_trans_mgmt_req(wpa_s, pos, end,
|
|
|
|
!(mgmt->da[0] & 0x01));
|
|
|
|
break;
|
|
|
|
case WNM_SLEEP_MODE_RESP:
|
|
|
|
ieee802_11_rx_wnmsleep_resp(wpa_s, pos, end - pos);
|
|
|
|
break;
|
|
|
|
case WNM_NOTIFICATION_REQ:
|
|
|
|
ieee802_11_rx_wnm_notif_req(wpa_s, mgmt->sa, pos, end - pos);
|
|
|
|
break;
|
|
|
|
case WNM_COLLOCATED_INTERFERENCE_REQ:
|
|
|
|
ieee802_11_rx_wnm_coloc_intf_req(wpa_s, mgmt->sa, pos,
|
|
|
|
end - pos);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
wpa_printf(MSG_ERROR, "WNM: Unknown request");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int wnm_send_coloc_intf_report(struct wpa_supplicant *wpa_s, u8 dialog_token,
|
|
|
|
const struct wpabuf *elems)
|
|
|
|
{
|
|
|
|
struct wpabuf *buf;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (wpa_s->wpa_state < WPA_ASSOCIATED || !elems)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Send Collocated Interference Report to "
|
|
|
|
MACSTR " (dialog token %u)",
|
|
|
|
MAC2STR(wpa_s->bssid), dialog_token);
|
|
|
|
|
|
|
|
buf = wpabuf_alloc(3 + wpabuf_len(elems));
|
|
|
|
if (!buf)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
wpabuf_put_u8(buf, WLAN_ACTION_WNM);
|
|
|
|
wpabuf_put_u8(buf, WNM_COLLOCATED_INTERFERENCE_REPORT);
|
|
|
|
wpabuf_put_u8(buf, dialog_token);
|
|
|
|
wpabuf_put_buf(buf, elems);
|
|
|
|
|
|
|
|
ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
|
|
|
|
wpa_s->own_addr, wpa_s->bssid,
|
|
|
|
wpabuf_head_u8(buf), wpabuf_len(buf), 0);
|
|
|
|
wpabuf_free(buf);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void wnm_set_coloc_intf_elems(struct wpa_supplicant *wpa_s,
|
|
|
|
struct wpabuf *elems)
|
|
|
|
{
|
|
|
|
wpabuf_free(wpa_s->coloc_intf_elems);
|
|
|
|
if (elems && wpabuf_len(elems) == 0) {
|
|
|
|
wpabuf_free(elems);
|
|
|
|
elems = NULL;
|
|
|
|
}
|
|
|
|
wpa_s->coloc_intf_elems = elems;
|
|
|
|
|
|
|
|
if (wpa_s->conf->coloc_intf_reporting && wpa_s->coloc_intf_elems &&
|
|
|
|
wpa_s->coloc_intf_dialog_token &&
|
|
|
|
(wpa_s->coloc_intf_auto_report == 1 ||
|
|
|
|
wpa_s->coloc_intf_auto_report == 3)) {
|
|
|
|
/* TODO: Check that there has not been less than
|
|
|
|
* wpa_s->coloc_intf_timeout * 200 TU from the last report.
|
|
|
|
*/
|
|
|
|
wnm_send_coloc_intf_report(wpa_s,
|
|
|
|
wpa_s->coloc_intf_dialog_token,
|
|
|
|
wpa_s->coloc_intf_elems);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void wnm_clear_coloc_intf_reporting(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
#ifdef CONFIG_WNM
|
|
|
|
wpa_s->coloc_intf_dialog_token = 0;
|
|
|
|
wpa_s->coloc_intf_auto_report = 0;
|
|
|
|
#endif /* CONFIG_WNM */
|
|
|
|
}
|