![Jouni Malinen](/assets/img/avatar_default.png)
If a driver wrapper misbehaves and does not indicate a frame body in the event, core hostapd code should handle this consistently since that case was already checked for in one location. Signed-off-by: Jouni Malinen <j@w1.fi>
1109 lines
29 KiB
C
1109 lines
29 KiB
C
/*
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* hostapd / Callback functions for driver wrappers
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* Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
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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 "utils/eloop.h"
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#include "radius/radius.h"
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#include "drivers/driver.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 "crypto/random.h"
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#include "p2p/p2p.h"
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#include "wps/wps.h"
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#include "wnm_ap.h"
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#include "hostapd.h"
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#include "ieee802_11.h"
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#include "sta_info.h"
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#include "accounting.h"
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#include "tkip_countermeasures.h"
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#include "ieee802_1x.h"
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#include "wpa_auth.h"
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#include "wps_hostapd.h"
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#include "ap_drv_ops.h"
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#include "ap_config.h"
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#include "hw_features.h"
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#include "dfs.h"
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#include "beacon.h"
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int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
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const u8 *req_ies, size_t req_ies_len, int reassoc)
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{
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struct sta_info *sta;
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int new_assoc, res;
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struct ieee802_11_elems elems;
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const u8 *ie;
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size_t ielen;
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#ifdef CONFIG_IEEE80211R
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u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
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u8 *p = buf;
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#endif /* CONFIG_IEEE80211R */
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u16 reason = WLAN_REASON_UNSPECIFIED;
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u16 status = WLAN_STATUS_SUCCESS;
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const u8 *p2p_dev_addr = NULL;
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if (addr == NULL) {
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/*
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* This could potentially happen with unexpected event from the
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* driver wrapper. This was seen at least in one case where the
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* driver ended up being set to station mode while hostapd was
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* running, so better make sure we stop processing such an
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* event here.
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*/
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wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
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"no address");
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return -1;
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}
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random_add_randomness(addr, ETH_ALEN);
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hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO, "associated");
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ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
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if (elems.wps_ie) {
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ie = elems.wps_ie - 2;
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ielen = elems.wps_ie_len + 2;
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wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
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} else if (elems.rsn_ie) {
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ie = elems.rsn_ie - 2;
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ielen = elems.rsn_ie_len + 2;
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wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
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} else if (elems.wpa_ie) {
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ie = elems.wpa_ie - 2;
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ielen = elems.wpa_ie_len + 2;
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wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
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#ifdef CONFIG_HS20
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} else if (elems.osen) {
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ie = elems.osen - 2;
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ielen = elems.osen_len + 2;
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wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
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#endif /* CONFIG_HS20 */
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} else {
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ie = NULL;
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ielen = 0;
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wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
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"(Re)AssocReq");
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}
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sta = ap_get_sta(hapd, addr);
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if (sta) {
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ap_sta_no_session_timeout(hapd, sta);
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accounting_sta_stop(hapd, sta);
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/*
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* Make sure that the previously registered inactivity timer
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* will not remove the STA immediately.
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*/
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sta->timeout_next = STA_NULLFUNC;
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} else {
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sta = ap_sta_add(hapd, addr);
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if (sta == NULL) {
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hostapd_drv_sta_disassoc(hapd, addr,
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WLAN_REASON_DISASSOC_AP_BUSY);
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return -1;
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}
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}
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sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
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#ifdef CONFIG_P2P
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if (elems.p2p) {
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wpabuf_free(sta->p2p_ie);
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sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
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P2P_IE_VENDOR_TYPE);
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if (sta->p2p_ie)
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p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
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}
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#endif /* CONFIG_P2P */
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#ifdef CONFIG_IEEE80211N
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#ifdef NEED_AP_MLME
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if (elems.ht_capabilities &&
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elems.ht_capabilities_len >=
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sizeof(struct ieee80211_ht_capabilities) &&
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(hapd->iface->conf->ht_capab &
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HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
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struct ieee80211_ht_capabilities *ht_cap =
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(struct ieee80211_ht_capabilities *)
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elems.ht_capabilities;
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if (le_to_host16(ht_cap->ht_capabilities_info) &
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HT_CAP_INFO_40MHZ_INTOLERANT)
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ht40_intolerant_add(hapd->iface, sta);
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}
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#endif /* NEED_AP_MLME */
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#endif /* CONFIG_IEEE80211N */
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#ifdef CONFIG_INTERWORKING
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if (elems.ext_capab && elems.ext_capab_len > 4) {
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if (elems.ext_capab[4] & 0x01)
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sta->qos_map_enabled = 1;
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}
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#endif /* CONFIG_INTERWORKING */
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#ifdef CONFIG_HS20
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wpabuf_free(sta->hs20_ie);
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if (elems.hs20 && elems.hs20_len > 4) {
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sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
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elems.hs20_len - 4);
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} else
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sta->hs20_ie = NULL;
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#endif /* CONFIG_HS20 */
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if (hapd->conf->wpa) {
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if (ie == NULL || ielen == 0) {
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#ifdef CONFIG_WPS
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if (hapd->conf->wps_state) {
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wpa_printf(MSG_DEBUG, "STA did not include "
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"WPA/RSN IE in (Re)Association "
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"Request - possible WPS use");
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sta->flags |= WLAN_STA_MAYBE_WPS;
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goto skip_wpa_check;
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}
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#endif /* CONFIG_WPS */
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wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
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return -1;
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}
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#ifdef CONFIG_WPS
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if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
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os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
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struct wpabuf *wps;
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sta->flags |= WLAN_STA_WPS;
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wps = ieee802_11_vendor_ie_concat(ie, ielen,
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WPS_IE_VENDOR_TYPE);
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if (wps) {
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if (wps_is_20(wps)) {
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wpa_printf(MSG_DEBUG, "WPS: STA "
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"supports WPS 2.0");
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sta->flags |= WLAN_STA_WPS2;
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}
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wpabuf_free(wps);
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}
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goto skip_wpa_check;
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}
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#endif /* CONFIG_WPS */
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if (sta->wpa_sm == NULL)
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sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
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sta->addr,
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p2p_dev_addr);
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if (sta->wpa_sm == NULL) {
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wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
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"machine");
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return -1;
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}
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res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
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ie, ielen,
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elems.mdie, elems.mdie_len);
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if (res != WPA_IE_OK) {
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wpa_printf(MSG_DEBUG, "WPA/RSN information element "
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"rejected? (res %u)", res);
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wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
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if (res == WPA_INVALID_GROUP) {
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reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
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status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
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} else if (res == WPA_INVALID_PAIRWISE) {
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reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
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status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
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} else if (res == WPA_INVALID_AKMP) {
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reason = WLAN_REASON_AKMP_NOT_VALID;
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status = WLAN_STATUS_AKMP_NOT_VALID;
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}
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#ifdef CONFIG_IEEE80211W
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else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
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reason = WLAN_REASON_INVALID_IE;
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status = WLAN_STATUS_INVALID_IE;
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} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
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reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
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status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
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}
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#endif /* CONFIG_IEEE80211W */
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else {
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reason = WLAN_REASON_INVALID_IE;
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status = WLAN_STATUS_INVALID_IE;
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}
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goto fail;
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}
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#ifdef CONFIG_IEEE80211W
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if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
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sta->sa_query_count > 0)
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ap_check_sa_query_timeout(hapd, sta);
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if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
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(sta->auth_alg != WLAN_AUTH_FT)) {
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/*
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* STA has already been associated with MFP and SA
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* Query timeout has not been reached. Reject the
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* association attempt temporarily and start SA Query,
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* if one is not pending.
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*/
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if (sta->sa_query_count == 0)
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ap_sta_start_sa_query(hapd, sta);
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#ifdef CONFIG_IEEE80211R
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status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
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p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
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hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
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p - buf);
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#endif /* CONFIG_IEEE80211R */
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return 0;
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}
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if (wpa_auth_uses_mfp(sta->wpa_sm))
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sta->flags |= WLAN_STA_MFP;
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else
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sta->flags &= ~WLAN_STA_MFP;
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#endif /* CONFIG_IEEE80211W */
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#ifdef CONFIG_IEEE80211R
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if (sta->auth_alg == WLAN_AUTH_FT) {
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status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
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req_ies_len);
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if (status != WLAN_STATUS_SUCCESS) {
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if (status == WLAN_STATUS_INVALID_PMKID)
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reason = WLAN_REASON_INVALID_IE;
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if (status == WLAN_STATUS_INVALID_MDIE)
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reason = WLAN_REASON_INVALID_IE;
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if (status == WLAN_STATUS_INVALID_FTIE)
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reason = WLAN_REASON_INVALID_IE;
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goto fail;
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}
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}
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#endif /* CONFIG_IEEE80211R */
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} else if (hapd->conf->wps_state) {
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#ifdef CONFIG_WPS
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struct wpabuf *wps;
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if (req_ies)
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wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
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WPS_IE_VENDOR_TYPE);
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else
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wps = NULL;
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#ifdef CONFIG_WPS_STRICT
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if (wps && wps_validate_assoc_req(wps) < 0) {
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reason = WLAN_REASON_INVALID_IE;
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status = WLAN_STATUS_INVALID_IE;
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wpabuf_free(wps);
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goto fail;
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}
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#endif /* CONFIG_WPS_STRICT */
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if (wps) {
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sta->flags |= WLAN_STA_WPS;
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if (wps_is_20(wps)) {
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wpa_printf(MSG_DEBUG, "WPS: STA supports "
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"WPS 2.0");
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sta->flags |= WLAN_STA_WPS2;
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}
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} else
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sta->flags |= WLAN_STA_MAYBE_WPS;
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wpabuf_free(wps);
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#endif /* CONFIG_WPS */
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#ifdef CONFIG_HS20
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} else if (hapd->conf->osen) {
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if (elems.osen == NULL) {
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hostapd_logger(
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hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO,
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"No HS 2.0 OSEN element in association request");
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return WLAN_STATUS_INVALID_IE;
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}
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wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
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if (sta->wpa_sm == NULL)
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sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
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sta->addr, NULL);
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if (sta->wpa_sm == NULL) {
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wpa_printf(MSG_WARNING, "Failed to initialize WPA "
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"state machine");
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return WLAN_STATUS_UNSPECIFIED_FAILURE;
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}
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if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
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elems.osen - 2, elems.osen_len + 2) < 0)
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return WLAN_STATUS_INVALID_IE;
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#endif /* CONFIG_HS20 */
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}
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#ifdef CONFIG_WPS
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skip_wpa_check:
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#endif /* CONFIG_WPS */
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#ifdef CONFIG_IEEE80211R
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p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
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sta->auth_alg, req_ies, req_ies_len);
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hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
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#else /* CONFIG_IEEE80211R */
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/* Keep compiler silent about unused variables */
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if (status) {
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}
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#endif /* CONFIG_IEEE80211R */
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new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
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sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
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sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
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if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
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wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
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else
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wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
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hostapd_new_assoc_sta(hapd, sta, !new_assoc);
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ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
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#ifdef CONFIG_P2P
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if (req_ies) {
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p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
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req_ies, req_ies_len);
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}
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#endif /* CONFIG_P2P */
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return 0;
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fail:
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#ifdef CONFIG_IEEE80211R
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hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
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#endif /* CONFIG_IEEE80211R */
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hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
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ap_free_sta(hapd, sta);
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return -1;
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}
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void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
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{
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struct sta_info *sta;
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if (addr == NULL) {
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/*
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* This could potentially happen with unexpected event from the
|
|
* driver wrapper. This was seen at least in one case where the
|
|
* driver ended up reporting a station mode event while hostapd
|
|
* was running, so better make sure we stop processing such an
|
|
* event here.
|
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*/
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wpa_printf(MSG_DEBUG, "hostapd_notif_disassoc: Skip event "
|
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"with no address");
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return;
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}
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hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO, "disassociated");
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sta = ap_get_sta(hapd, addr);
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if (sta == NULL) {
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wpa_printf(MSG_DEBUG, "Disassociation notification for "
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"unknown STA " MACSTR, MAC2STR(addr));
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return;
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}
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ap_sta_set_authorized(hapd, sta, 0);
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sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
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wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
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sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
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ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
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ap_free_sta(hapd, sta);
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}
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|
|
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void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
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{
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struct sta_info *sta = ap_get_sta(hapd, addr);
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if (!sta || !hapd->conf->disassoc_low_ack)
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return;
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hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO, "disconnected due to excessive "
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"missing ACKs");
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hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
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if (sta)
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ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
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}
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|
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void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
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int offset, int width, int cf1, int cf2)
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{
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#ifdef NEED_AP_MLME
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int channel, chwidth, seg0_idx = 0, seg1_idx = 0;
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|
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hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO, "driver had channel switch: "
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"freq=%d, ht=%d, offset=%d, width=%d, cf1=%d, cf2=%d",
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freq, ht, offset, width, cf1, cf2);
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hapd->iface->freq = freq;
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channel = hostapd_hw_get_channel(hapd, freq);
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if (!channel) {
|
|
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
|
|
HOSTAPD_LEVEL_WARNING, "driver switched to "
|
|
"bad channel!");
|
|
return;
|
|
}
|
|
|
|
switch (width) {
|
|
case CHAN_WIDTH_80:
|
|
chwidth = VHT_CHANWIDTH_80MHZ;
|
|
break;
|
|
case CHAN_WIDTH_80P80:
|
|
chwidth = VHT_CHANWIDTH_80P80MHZ;
|
|
break;
|
|
case CHAN_WIDTH_160:
|
|
chwidth = VHT_CHANWIDTH_160MHZ;
|
|
break;
|
|
case CHAN_WIDTH_20_NOHT:
|
|
case CHAN_WIDTH_20:
|
|
case CHAN_WIDTH_40:
|
|
default:
|
|
chwidth = VHT_CHANWIDTH_USE_HT;
|
|
break;
|
|
}
|
|
|
|
switch (hapd->iface->current_mode->mode) {
|
|
case HOSTAPD_MODE_IEEE80211A:
|
|
if (cf1 > 5000)
|
|
seg0_idx = (cf1 - 5000) / 5;
|
|
if (cf2 > 5000)
|
|
seg1_idx = (cf2 - 5000) / 5;
|
|
break;
|
|
default:
|
|
seg0_idx = hostapd_hw_get_channel(hapd, cf1);
|
|
seg1_idx = hostapd_hw_get_channel(hapd, cf2);
|
|
break;
|
|
}
|
|
|
|
hapd->iconf->channel = channel;
|
|
hapd->iconf->ieee80211n = ht;
|
|
hapd->iconf->secondary_channel = offset;
|
|
hapd->iconf->vht_oper_chwidth = chwidth;
|
|
hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
|
|
hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
|
|
|
|
if (hapd->iface->csa_in_progress &&
|
|
freq == hapd->iface->cs_freq_params.freq) {
|
|
hostapd_cleanup_cs_params(hapd);
|
|
|
|
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED "freq=%d",
|
|
freq);
|
|
}
|
|
#endif /* NEED_AP_MLME */
|
|
}
|
|
|
|
|
|
void hostapd_event_connect_failed_reason(struct hostapd_data *hapd,
|
|
const u8 *addr, int reason_code)
|
|
{
|
|
switch (reason_code) {
|
|
case MAX_CLIENT_REACHED:
|
|
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_MAX_STA MACSTR,
|
|
MAC2STR(addr));
|
|
break;
|
|
case BLOCKED_CLIENT:
|
|
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_BLOCKED_STA MACSTR,
|
|
MAC2STR(addr));
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
|
|
const u8 *bssid, const u8 *ie, size_t ie_len,
|
|
int ssi_signal)
|
|
{
|
|
size_t i;
|
|
int ret = 0;
|
|
|
|
if (sa == NULL || ie == NULL)
|
|
return -1;
|
|
|
|
random_add_randomness(sa, ETH_ALEN);
|
|
for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
|
|
if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
|
|
sa, da, bssid, ie, ie_len,
|
|
ssi_signal) > 0) {
|
|
ret = 1;
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#ifdef HOSTAPD
|
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst,
|
|
const u8 *bssid,
|
|
u16 auth_transaction, u16 status,
|
|
const u8 *ies, size_t ies_len)
|
|
{
|
|
struct hostapd_data *hapd = ctx;
|
|
struct sta_info *sta;
|
|
|
|
sta = ap_get_sta(hapd, dst);
|
|
if (sta == NULL)
|
|
return;
|
|
|
|
hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
|
|
HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
|
|
sta->flags |= WLAN_STA_AUTH;
|
|
|
|
hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len);
|
|
}
|
|
#endif /* CONFIG_IEEE80211R */
|
|
|
|
|
|
static void hostapd_notif_auth(struct hostapd_data *hapd,
|
|
struct auth_info *rx_auth)
|
|
{
|
|
struct sta_info *sta;
|
|
u16 status = WLAN_STATUS_SUCCESS;
|
|
u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
|
|
size_t resp_ies_len = 0;
|
|
|
|
sta = ap_get_sta(hapd, rx_auth->peer);
|
|
if (!sta) {
|
|
sta = ap_sta_add(hapd, rx_auth->peer);
|
|
if (sta == NULL) {
|
|
status = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
|
|
goto fail;
|
|
}
|
|
}
|
|
sta->flags &= ~WLAN_STA_PREAUTH;
|
|
ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
|
|
#ifdef CONFIG_IEEE80211R
|
|
if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) {
|
|
sta->auth_alg = WLAN_AUTH_FT;
|
|
if (sta->wpa_sm == NULL)
|
|
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
|
|
sta->addr, NULL);
|
|
if (sta->wpa_sm == NULL) {
|
|
wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA "
|
|
"state machine");
|
|
status = WLAN_STATUS_UNSPECIFIED_FAILURE;
|
|
goto fail;
|
|
}
|
|
wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid,
|
|
rx_auth->auth_transaction, rx_auth->ies,
|
|
rx_auth->ies_len,
|
|
hostapd_notify_auth_ft_finish, hapd);
|
|
return;
|
|
}
|
|
#endif /* CONFIG_IEEE80211R */
|
|
fail:
|
|
hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1,
|
|
status, resp_ies, resp_ies_len);
|
|
}
|
|
|
|
|
|
static void hostapd_action_rx(struct hostapd_data *hapd,
|
|
struct rx_mgmt *drv_mgmt)
|
|
{
|
|
struct ieee80211_mgmt *mgmt;
|
|
struct sta_info *sta;
|
|
size_t plen __maybe_unused;
|
|
u16 fc;
|
|
|
|
if (drv_mgmt->frame_len < 24 + 1)
|
|
return;
|
|
|
|
plen = drv_mgmt->frame_len - 24 - 1;
|
|
|
|
mgmt = (struct ieee80211_mgmt *) drv_mgmt->frame;
|
|
fc = le_to_host16(mgmt->frame_control);
|
|
if (WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION)
|
|
return; /* handled by the driver */
|
|
|
|
wpa_printf(MSG_DEBUG, "RX_ACTION cat %d action plen %d",
|
|
mgmt->u.action.category, (int) plen);
|
|
|
|
sta = ap_get_sta(hapd, mgmt->sa);
|
|
if (sta == NULL) {
|
|
wpa_printf(MSG_DEBUG, "%s: station not found", __func__);
|
|
return;
|
|
}
|
|
#ifdef CONFIG_IEEE80211R
|
|
if (mgmt->u.action.category == WLAN_ACTION_FT) {
|
|
const u8 *payload = drv_mgmt->frame + 24 + 1;
|
|
wpa_ft_action_rx(sta->wpa_sm, payload, plen);
|
|
}
|
|
#endif /* CONFIG_IEEE80211R */
|
|
#ifdef CONFIG_IEEE80211W
|
|
if (mgmt->u.action.category == WLAN_ACTION_SA_QUERY && plen >= 4) {
|
|
ieee802_11_sa_query_action(
|
|
hapd, mgmt->sa,
|
|
mgmt->u.action.u.sa_query_resp.action,
|
|
mgmt->u.action.u.sa_query_resp.trans_id);
|
|
}
|
|
#endif /* CONFIG_IEEE80211W */
|
|
#ifdef CONFIG_WNM
|
|
if (mgmt->u.action.category == WLAN_ACTION_WNM) {
|
|
ieee802_11_rx_wnm_action_ap(hapd, mgmt, drv_mgmt->frame_len);
|
|
}
|
|
#endif /* CONFIG_WNM */
|
|
}
|
|
|
|
|
|
#ifdef NEED_AP_MLME
|
|
|
|
#define HAPD_BROADCAST ((struct hostapd_data *) -1)
|
|
|
|
static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
|
|
const u8 *bssid)
|
|
{
|
|
size_t i;
|
|
|
|
if (bssid == NULL)
|
|
return NULL;
|
|
if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
|
|
bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
|
|
return HAPD_BROADCAST;
|
|
|
|
for (i = 0; i < iface->num_bss; i++) {
|
|
if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
|
|
return iface->bss[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
|
|
const u8 *bssid, const u8 *addr,
|
|
int wds)
|
|
{
|
|
hapd = get_hapd_bssid(hapd->iface, bssid);
|
|
if (hapd == NULL || hapd == HAPD_BROADCAST)
|
|
return;
|
|
|
|
ieee802_11_rx_from_unknown(hapd, addr, wds);
|
|
}
|
|
|
|
|
|
static int hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
|
|
{
|
|
struct hostapd_iface *iface = hapd->iface;
|
|
const struct ieee80211_hdr *hdr;
|
|
const u8 *bssid;
|
|
struct hostapd_frame_info fi;
|
|
int ret;
|
|
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (hapd->ext_mgmt_frame_handling) {
|
|
size_t hex_len = 2 * rx_mgmt->frame_len + 1;
|
|
char *hex = os_malloc(hex_len);
|
|
if (hex) {
|
|
wpa_snprintf_hex(hex, hex_len, rx_mgmt->frame,
|
|
rx_mgmt->frame_len);
|
|
wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-RX %s", hex);
|
|
os_free(hex);
|
|
}
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
|
|
hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
|
|
bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
|
|
if (bssid == NULL)
|
|
return 0;
|
|
|
|
hapd = get_hapd_bssid(iface, bssid);
|
|
if (hapd == NULL) {
|
|
u16 fc;
|
|
fc = le_to_host16(hdr->frame_control);
|
|
|
|
/*
|
|
* Drop frames to unknown BSSIDs except for Beacon frames which
|
|
* could be used to update neighbor information.
|
|
*/
|
|
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
|
|
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
|
|
hapd = iface->bss[0];
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
os_memset(&fi, 0, sizeof(fi));
|
|
fi.datarate = rx_mgmt->datarate;
|
|
fi.ssi_signal = rx_mgmt->ssi_signal;
|
|
|
|
if (hapd == HAPD_BROADCAST) {
|
|
size_t i;
|
|
ret = 0;
|
|
for (i = 0; i < iface->num_bss; i++) {
|
|
/* if bss is set, driver will call this function for
|
|
* each bss individually. */
|
|
if (rx_mgmt->drv_priv &&
|
|
(iface->bss[i]->drv_priv != rx_mgmt->drv_priv))
|
|
continue;
|
|
|
|
if (ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
|
|
rx_mgmt->frame_len, &fi) > 0)
|
|
ret = 1;
|
|
}
|
|
} else
|
|
ret = ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len,
|
|
&fi);
|
|
|
|
random_add_randomness(&fi, sizeof(fi));
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
|
|
size_t len, u16 stype, int ok)
|
|
{
|
|
struct ieee80211_hdr *hdr;
|
|
hdr = (struct ieee80211_hdr *) buf;
|
|
hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
|
|
if (hapd == NULL || hapd == HAPD_BROADCAST)
|
|
return;
|
|
ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
|
|
}
|
|
|
|
#endif /* NEED_AP_MLME */
|
|
|
|
|
|
static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
|
|
{
|
|
struct sta_info *sta = ap_get_sta(hapd, addr);
|
|
if (sta)
|
|
return 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
|
|
" - adding a new STA", MAC2STR(addr));
|
|
sta = ap_sta_add(hapd, addr);
|
|
if (sta) {
|
|
hostapd_new_assoc_sta(hapd, sta, 0);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
|
|
MAC2STR(addr));
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
|
|
const u8 *data, size_t data_len)
|
|
{
|
|
struct hostapd_iface *iface = hapd->iface;
|
|
struct sta_info *sta;
|
|
size_t j;
|
|
|
|
for (j = 0; j < iface->num_bss; j++) {
|
|
if ((sta = ap_get_sta(iface->bss[j], src))) {
|
|
if (sta->flags & WLAN_STA_ASSOC) {
|
|
hapd = iface->bss[j];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ieee802_1x_receive(hapd, src, data, data_len);
|
|
}
|
|
|
|
|
|
static struct hostapd_channel_data * hostapd_get_mode_channel(
|
|
struct hostapd_iface *iface, unsigned int freq)
|
|
{
|
|
int i;
|
|
struct hostapd_channel_data *chan;
|
|
|
|
for (i = 0; i < iface->current_mode->num_channels; i++) {
|
|
chan = &iface->current_mode->channels[i];
|
|
if (!chan)
|
|
return NULL;
|
|
if ((unsigned int) chan->freq == freq)
|
|
return chan;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void hostapd_update_nf(struct hostapd_iface *iface,
|
|
struct hostapd_channel_data *chan,
|
|
struct freq_survey *survey)
|
|
{
|
|
if (!iface->chans_surveyed) {
|
|
chan->min_nf = survey->nf;
|
|
iface->lowest_nf = survey->nf;
|
|
} else {
|
|
if (dl_list_empty(&chan->survey_list))
|
|
chan->min_nf = survey->nf;
|
|
else if (survey->nf < chan->min_nf)
|
|
chan->min_nf = survey->nf;
|
|
if (survey->nf < iface->lowest_nf)
|
|
iface->lowest_nf = survey->nf;
|
|
}
|
|
}
|
|
|
|
|
|
static void hostapd_event_get_survey(struct hostapd_data *hapd,
|
|
struct survey_results *survey_results)
|
|
{
|
|
struct hostapd_iface *iface = hapd->iface;
|
|
struct freq_survey *survey, *tmp;
|
|
struct hostapd_channel_data *chan;
|
|
|
|
if (dl_list_empty(&survey_results->survey_list)) {
|
|
wpa_printf(MSG_DEBUG, "No survey data received");
|
|
return;
|
|
}
|
|
|
|
dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
|
|
struct freq_survey, list) {
|
|
chan = hostapd_get_mode_channel(iface, survey->freq);
|
|
if (!chan)
|
|
continue;
|
|
if (chan->flag & HOSTAPD_CHAN_DISABLED)
|
|
continue;
|
|
|
|
dl_list_del(&survey->list);
|
|
dl_list_add_tail(&chan->survey_list, &survey->list);
|
|
|
|
hostapd_update_nf(iface, chan, survey);
|
|
|
|
iface->chans_surveyed++;
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef NEED_AP_MLME
|
|
|
|
static void hostapd_event_dfs_radar_detected(struct hostapd_data *hapd,
|
|
struct dfs_event *radar)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
|
|
hostapd_dfs_radar_detected(hapd->iface, radar->freq, radar->ht_enabled,
|
|
radar->chan_offset, radar->chan_width,
|
|
radar->cf1, radar->cf2);
|
|
}
|
|
|
|
|
|
static void hostapd_event_dfs_cac_finished(struct hostapd_data *hapd,
|
|
struct dfs_event *radar)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
|
|
hostapd_dfs_complete_cac(hapd->iface, 1, radar->freq, radar->ht_enabled,
|
|
radar->chan_offset, radar->chan_width,
|
|
radar->cf1, radar->cf2);
|
|
}
|
|
|
|
|
|
static void hostapd_event_dfs_cac_aborted(struct hostapd_data *hapd,
|
|
struct dfs_event *radar)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
|
|
hostapd_dfs_complete_cac(hapd->iface, 0, radar->freq, radar->ht_enabled,
|
|
radar->chan_offset, radar->chan_width,
|
|
radar->cf1, radar->cf2);
|
|
}
|
|
|
|
|
|
static void hostapd_event_dfs_nop_finished(struct hostapd_data *hapd,
|
|
struct dfs_event *radar)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
|
|
hostapd_dfs_nop_finished(hapd->iface, radar->freq, radar->ht_enabled,
|
|
radar->chan_offset, radar->chan_width,
|
|
radar->cf1, radar->cf2);
|
|
}
|
|
|
|
#endif /* NEED_AP_MLME */
|
|
|
|
|
|
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
|
|
union wpa_event_data *data)
|
|
{
|
|
struct hostapd_data *hapd = ctx;
|
|
#ifndef CONFIG_NO_STDOUT_DEBUG
|
|
int level = MSG_DEBUG;
|
|
|
|
if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
|
|
data->rx_mgmt.frame_len >= 24) {
|
|
const struct ieee80211_hdr *hdr;
|
|
u16 fc;
|
|
hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
|
|
fc = le_to_host16(hdr->frame_control);
|
|
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
|
|
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
|
|
level = MSG_EXCESSIVE;
|
|
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
|
|
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_REQ)
|
|
level = MSG_EXCESSIVE;
|
|
}
|
|
|
|
wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
|
|
event_to_string(event), event);
|
|
#endif /* CONFIG_NO_STDOUT_DEBUG */
|
|
|
|
switch (event) {
|
|
case EVENT_MICHAEL_MIC_FAILURE:
|
|
michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
|
|
break;
|
|
case EVENT_SCAN_RESULTS:
|
|
if (hapd->iface->scan_cb)
|
|
hapd->iface->scan_cb(hapd->iface);
|
|
break;
|
|
#ifdef CONFIG_IEEE80211R
|
|
case EVENT_FT_RRB_RX:
|
|
wpa_ft_rrb_rx(hapd->wpa_auth, data->ft_rrb_rx.src,
|
|
data->ft_rrb_rx.data, data->ft_rrb_rx.data_len);
|
|
break;
|
|
#endif /* CONFIG_IEEE80211R */
|
|
case EVENT_WPS_BUTTON_PUSHED:
|
|
hostapd_wps_button_pushed(hapd, NULL);
|
|
break;
|
|
#ifdef NEED_AP_MLME
|
|
case EVENT_TX_STATUS:
|
|
switch (data->tx_status.type) {
|
|
case WLAN_FC_TYPE_MGMT:
|
|
hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
|
|
data->tx_status.data_len,
|
|
data->tx_status.stype,
|
|
data->tx_status.ack);
|
|
break;
|
|
case WLAN_FC_TYPE_DATA:
|
|
hostapd_tx_status(hapd, data->tx_status.dst,
|
|
data->tx_status.data,
|
|
data->tx_status.data_len,
|
|
data->tx_status.ack);
|
|
break;
|
|
}
|
|
break;
|
|
case EVENT_EAPOL_TX_STATUS:
|
|
hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
|
|
data->eapol_tx_status.data,
|
|
data->eapol_tx_status.data_len,
|
|
data->eapol_tx_status.ack);
|
|
break;
|
|
case EVENT_DRIVER_CLIENT_POLL_OK:
|
|
hostapd_client_poll_ok(hapd, data->client_poll.addr);
|
|
break;
|
|
case EVENT_RX_FROM_UNKNOWN:
|
|
hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
|
|
data->rx_from_unknown.addr,
|
|
data->rx_from_unknown.wds);
|
|
break;
|
|
#endif /* NEED_AP_MLME */
|
|
case EVENT_RX_MGMT:
|
|
if (!data->rx_mgmt.frame)
|
|
break;
|
|
#ifdef NEED_AP_MLME
|
|
if (hostapd_mgmt_rx(hapd, &data->rx_mgmt) > 0)
|
|
break;
|
|
#endif /* NEED_AP_MLME */
|
|
hostapd_action_rx(hapd, &data->rx_mgmt);
|
|
break;
|
|
case EVENT_RX_PROBE_REQ:
|
|
if (data->rx_probe_req.sa == NULL ||
|
|
data->rx_probe_req.ie == NULL)
|
|
break;
|
|
hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
|
|
data->rx_probe_req.da,
|
|
data->rx_probe_req.bssid,
|
|
data->rx_probe_req.ie,
|
|
data->rx_probe_req.ie_len,
|
|
data->rx_probe_req.ssi_signal);
|
|
break;
|
|
case EVENT_NEW_STA:
|
|
hostapd_event_new_sta(hapd, data->new_sta.addr);
|
|
break;
|
|
case EVENT_EAPOL_RX:
|
|
hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
|
|
data->eapol_rx.data,
|
|
data->eapol_rx.data_len);
|
|
break;
|
|
case EVENT_ASSOC:
|
|
hostapd_notif_assoc(hapd, data->assoc_info.addr,
|
|
data->assoc_info.req_ies,
|
|
data->assoc_info.req_ies_len,
|
|
data->assoc_info.reassoc);
|
|
break;
|
|
case EVENT_DISASSOC:
|
|
if (data)
|
|
hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
|
|
break;
|
|
case EVENT_DEAUTH:
|
|
if (data)
|
|
hostapd_notif_disassoc(hapd, data->deauth_info.addr);
|
|
break;
|
|
case EVENT_STATION_LOW_ACK:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
|
|
break;
|
|
case EVENT_AUTH:
|
|
hostapd_notif_auth(hapd, &data->auth);
|
|
break;
|
|
case EVENT_CH_SWITCH:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_ch_switch(hapd, data->ch_switch.freq,
|
|
data->ch_switch.ht_enabled,
|
|
data->ch_switch.ch_offset,
|
|
data->ch_switch.ch_width,
|
|
data->ch_switch.cf1,
|
|
data->ch_switch.cf2);
|
|
break;
|
|
case EVENT_CONNECT_FAILED_REASON:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_connect_failed_reason(
|
|
hapd, data->connect_failed_reason.addr,
|
|
data->connect_failed_reason.code);
|
|
break;
|
|
case EVENT_SURVEY:
|
|
hostapd_event_get_survey(hapd, &data->survey_results);
|
|
break;
|
|
#ifdef NEED_AP_MLME
|
|
case EVENT_DFS_RADAR_DETECTED:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_dfs_radar_detected(hapd, &data->dfs_event);
|
|
break;
|
|
case EVENT_DFS_CAC_FINISHED:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_dfs_cac_finished(hapd, &data->dfs_event);
|
|
break;
|
|
case EVENT_DFS_CAC_ABORTED:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_dfs_cac_aborted(hapd, &data->dfs_event);
|
|
break;
|
|
case EVENT_DFS_NOP_FINISHED:
|
|
if (!data)
|
|
break;
|
|
hostapd_event_dfs_nop_finished(hapd, &data->dfs_event);
|
|
break;
|
|
case EVENT_CHANNEL_LIST_CHANGED:
|
|
/* channel list changed (regulatory?), update channel list */
|
|
/* TODO: check this. hostapd_get_hw_features() initializes
|
|
* too much stuff. */
|
|
/* hostapd_get_hw_features(hapd->iface); */
|
|
hostapd_channel_list_updated(
|
|
hapd->iface, data->channel_list_changed.initiator);
|
|
break;
|
|
#endif /* NEED_AP_MLME */
|
|
default:
|
|
wpa_printf(MSG_DEBUG, "Unknown event %d", event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#endif /* HOSTAPD */
|