2008-02-28 02:34:43 +01:00
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/*
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* WPA Supplicant - Driver event processing
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2010-01-02 12:57:44 +01:00
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* Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
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2008-02-28 02:34:43 +01:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "eapol_supp/eapol_supp_sm.h"
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2009-11-29 17:28:08 +01:00
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#include "rsn_supp/wpa.h"
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2008-02-28 02:34:43 +01:00
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#include "eloop.h"
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#include "config.h"
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#include "l2_packet/l2_packet.h"
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#include "wpa_supplicant_i.h"
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2009-03-26 19:37:05 +01:00
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#include "driver_i.h"
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2008-02-28 02:34:43 +01:00
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#include "pcsc_funcs.h"
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2009-11-29 17:28:08 +01:00
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#include "rsn_supp/preauth.h"
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#include "rsn_supp/pmksa_cache.h"
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2009-11-29 16:51:55 +01:00
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#include "common/wpa_ctrl.h"
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2008-02-28 02:34:43 +01:00
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#include "eap_peer/eap.h"
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2009-09-13 19:53:32 +02:00
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#include "notify.h"
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2009-11-29 16:51:55 +01:00
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#include "common/ieee802_11_defs.h"
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2008-02-28 02:34:43 +01:00
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#include "blacklist.h"
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#include "wpas_glue.h"
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2008-11-29 21:06:34 +01:00
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#include "wps_supplicant.h"
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2009-01-15 00:21:55 +01:00
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#include "ibss_rsn.h"
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2009-03-20 21:26:41 +01:00
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#include "sme.h"
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2009-09-14 23:08:24 +02:00
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#include "bgscan.h"
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2009-12-13 22:05:39 +01:00
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#include "ap.h"
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2010-01-02 15:16:02 +01:00
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#include "bss.h"
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2010-01-03 10:50:26 +01:00
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#include "mlme.h"
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2008-02-28 02:34:43 +01:00
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static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
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{
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2009-09-13 19:53:32 +02:00
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struct wpa_ssid *ssid, *old_ssid;
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2008-02-28 02:34:43 +01:00
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if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
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return 0;
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wpa_printf(MSG_DEBUG, "Select network based on association "
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"information");
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ssid = wpa_supplicant_get_ssid(wpa_s);
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if (ssid == NULL) {
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wpa_printf(MSG_INFO, "No network configuration found for the "
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"current AP");
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return -1;
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}
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if (ssid->disabled) {
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wpa_printf(MSG_DEBUG, "Selected network is disabled");
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return -1;
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}
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wpa_printf(MSG_DEBUG, "Network configuration found for the current "
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"AP");
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if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
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WPA_KEY_MGMT_WPA_NONE |
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2008-08-31 21:57:28 +02:00
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WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
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WPA_KEY_MGMT_PSK_SHA256 |
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WPA_KEY_MGMT_IEEE8021X_SHA256)) {
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2008-02-28 02:34:43 +01:00
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u8 wpa_ie[80];
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size_t wpa_ie_len = sizeof(wpa_ie);
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wpa_supplicant_set_suites(wpa_s, NULL, ssid,
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wpa_ie, &wpa_ie_len);
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} else {
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wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
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}
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if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
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eapol_sm_invalidate_cached_session(wpa_s->eapol);
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2009-09-13 19:53:32 +02:00
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old_ssid = wpa_s->current_ssid;
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2008-02-28 02:34:43 +01:00
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wpa_s->current_ssid = ssid;
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wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
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wpa_supplicant_initiate_eapol(wpa_s);
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2009-09-13 19:53:32 +02:00
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if (old_ssid != wpa_s->current_ssid)
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wpas_notify_network_changed(wpa_s);
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2008-02-28 02:34:43 +01:00
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return 0;
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}
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static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
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void *sock_ctx)
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{
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struct wpa_supplicant *wpa_s = eloop_ctx;
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if (wpa_s->countermeasures) {
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wpa_s->countermeasures = 0;
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wpa_drv_set_countermeasures(wpa_s, 0);
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wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
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wpa_supplicant_req_scan(wpa_s, 0, 0);
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}
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}
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void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
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{
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2009-09-13 19:53:32 +02:00
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int bssid_changed;
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2008-02-28 02:34:43 +01:00
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wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
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2009-09-13 19:53:32 +02:00
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bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
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2008-02-28 02:34:43 +01:00
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os_memset(wpa_s->bssid, 0, ETH_ALEN);
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os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
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2009-09-13 19:53:32 +02:00
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if (bssid_changed)
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wpas_notify_bssid_changed(wpa_s);
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2008-02-28 02:34:43 +01:00
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eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
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eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
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2008-08-31 21:57:28 +02:00
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if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
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2008-02-28 02:34:43 +01:00
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eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
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wpa_s->ap_ies_from_associnfo = 0;
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}
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static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
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{
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struct wpa_ie_data ie;
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int pmksa_set = -1;
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size_t i;
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if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
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ie.pmkid == NULL)
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return;
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for (i = 0; i < ie.num_pmkid; i++) {
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pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
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ie.pmkid + i * PMKID_LEN,
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NULL, NULL, 0);
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if (pmksa_set == 0) {
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eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
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break;
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}
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}
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wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
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"cache", pmksa_set == 0 ? "" : "not ");
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}
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static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
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union wpa_event_data *data)
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{
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if (data == NULL) {
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wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
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return;
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}
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wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
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" index=%d preauth=%d",
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MAC2STR(data->pmkid_candidate.bssid),
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data->pmkid_candidate.index,
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data->pmkid_candidate.preauth);
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pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
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data->pmkid_candidate.index,
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data->pmkid_candidate.preauth);
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}
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static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
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wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
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return 0;
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#ifdef IEEE8021X_EAPOL
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if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
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wpa_s->current_ssid &&
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!(wpa_s->current_ssid->eapol_flags &
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(EAPOL_FLAG_REQUIRE_KEY_UNICAST |
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EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
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/* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
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* plaintext or static WEP keys). */
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return 0;
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}
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#endif /* IEEE8021X_EAPOL */
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return 1;
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}
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/**
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* wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
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* @wpa_s: pointer to wpa_supplicant data
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* @ssid: Configuration data for the network
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* Returns: 0 on success, -1 on failure
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*
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* This function is called when starting authentication with a network that is
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* configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
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*/
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int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid)
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{
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#ifdef IEEE8021X_EAPOL
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int aka = 0, sim = 0, type;
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if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
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return 0;
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if (ssid->eap.eap_methods == NULL) {
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sim = 1;
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aka = 1;
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} else {
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struct eap_method_type *eap = ssid->eap.eap_methods;
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while (eap->vendor != EAP_VENDOR_IETF ||
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eap->method != EAP_TYPE_NONE) {
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if (eap->vendor == EAP_VENDOR_IETF) {
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if (eap->method == EAP_TYPE_SIM)
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sim = 1;
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else if (eap->method == EAP_TYPE_AKA)
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aka = 1;
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}
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eap++;
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}
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}
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if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
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sim = 0;
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if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
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aka = 0;
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if (!sim && !aka) {
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wpa_printf(MSG_DEBUG, "Selected network is configured to use "
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"SIM, but neither EAP-SIM nor EAP-AKA are enabled");
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return 0;
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}
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wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
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"(sim=%d aka=%d) - initialize PCSC", sim, aka);
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if (sim && aka)
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type = SCARD_TRY_BOTH;
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else if (aka)
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type = SCARD_USIM_ONLY;
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else
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type = SCARD_GSM_SIM_ONLY;
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wpa_s->scard = scard_init(type);
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if (wpa_s->scard == NULL) {
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wpa_printf(MSG_WARNING, "Failed to initialize SIM "
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"(pcsc-lite)");
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return -1;
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}
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wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
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eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
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#endif /* IEEE8021X_EAPOL */
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return 0;
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}
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#ifndef CONFIG_NO_SCAN_PROCESSING
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static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
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struct wpa_ssid *ssid)
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{
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int i, privacy = 0;
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if (ssid->mixed_cell)
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return 1;
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2009-02-17 09:17:24 +01:00
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#ifdef CONFIG_WPS
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if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
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return 1;
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#endif /* CONFIG_WPS */
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2008-02-28 02:34:43 +01:00
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for (i = 0; i < NUM_WEP_KEYS; i++) {
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if (ssid->wep_key_len[i]) {
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privacy = 1;
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break;
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}
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}
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#ifdef IEEE8021X_EAPOL
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if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
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ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
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EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
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privacy = 1;
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#endif /* IEEE8021X_EAPOL */
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if (bss->caps & IEEE80211_CAP_PRIVACY)
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return privacy;
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return !privacy;
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}
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2009-01-23 12:10:58 +01:00
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static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid,
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2008-02-28 02:34:43 +01:00
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struct wpa_scan_res *bss)
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{
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struct wpa_ie_data ie;
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int proto_match = 0;
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const u8 *rsn_ie, *wpa_ie;
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2008-11-29 21:06:34 +01:00
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int ret;
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2008-02-28 02:34:43 +01:00
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2009-01-23 12:10:58 +01:00
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ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
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2008-11-29 21:06:34 +01:00
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if (ret >= 0)
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return ret;
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2008-11-23 18:34:26 +01:00
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2008-02-28 02:34:43 +01:00
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rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
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while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
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proto_match++;
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if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
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wpa_printf(MSG_DEBUG, " skip RSN IE - parse failed");
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break;
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}
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if (!(ie.proto & ssid->proto)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip RSN IE - proto "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip RSN IE - PTK cipher "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ie.group_cipher & ssid->group_cipher)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip RSN IE - GTK cipher "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ie.key_mgmt & ssid->key_mgmt)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip RSN IE - key mgmt "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_IEEE80211W
|
2008-08-30 13:59:39 +02:00
|
|
|
if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
|
|
|
|
ssid->ieee80211w == IEEE80211W_REQUIRED) {
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_printf(MSG_DEBUG, " skip RSN IE - no mgmt frame "
|
|
|
|
"protection");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_IEEE80211W */
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, " selected based on RSN IE");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
|
|
|
|
while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
|
|
|
|
proto_match++;
|
|
|
|
|
|
|
|
if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip WPA IE - parse failed");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!(ie.proto & ssid->proto)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip WPA IE - proto "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip WPA IE - PTK cipher "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ie.group_cipher & ssid->group_cipher)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip WPA IE - GTK cipher "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(ie.key_mgmt & ssid->key_mgmt)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip WPA IE - key mgmt "
|
|
|
|
"mismatch");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, " selected based on WPA IE");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (proto_match == 0)
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - no WPA/RSN proto match");
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-02 15:16:02 +01:00
|
|
|
static struct wpa_bss *
|
2008-09-26 16:24:40 +02:00
|
|
|
wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
|
2010-01-02 15:41:38 +01:00
|
|
|
struct wpa_scan_results *scan_res,
|
2008-09-26 16:24:40 +02:00
|
|
|
struct wpa_ssid *group,
|
|
|
|
struct wpa_ssid **selected_ssid)
|
2008-02-28 02:34:43 +01:00
|
|
|
{
|
|
|
|
struct wpa_ssid *ssid;
|
2008-09-26 16:24:40 +02:00
|
|
|
struct wpa_scan_res *bss;
|
2008-02-28 02:34:43 +01:00
|
|
|
size_t i;
|
|
|
|
struct wpa_blacklist *e;
|
|
|
|
const u8 *ie;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
|
2010-01-02 15:41:38 +01:00
|
|
|
for (i = 0; i < scan_res->num; i++) {
|
2008-02-28 02:34:43 +01:00
|
|
|
const u8 *ssid_;
|
|
|
|
u8 wpa_ie_len, rsn_ie_len, ssid_len;
|
2010-01-02 15:41:38 +01:00
|
|
|
bss = scan_res->res[i];
|
2008-02-28 02:34:43 +01:00
|
|
|
|
|
|
|
ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
|
|
|
|
ssid_ = ie ? ie + 2 : (u8 *) "";
|
|
|
|
ssid_len = ie ? ie[1] : 0;
|
|
|
|
|
|
|
|
ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
|
|
|
|
wpa_ie_len = ie ? ie[1] : 0;
|
|
|
|
|
|
|
|
ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
|
|
|
|
rsn_ie_len = ie ? ie[1] : 0;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
|
|
|
|
"wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
|
|
|
|
(int) i, MAC2STR(bss->bssid),
|
|
|
|
wpa_ssid_txt(ssid_, ssid_len),
|
|
|
|
wpa_ie_len, rsn_ie_len, bss->caps);
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
e = wpa_blacklist_get(wpa_s, bss->bssid);
|
|
|
|
if (e && e->count > 1) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - blacklisted");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2009-10-15 20:58:58 +02:00
|
|
|
if (ssid_len == 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - SSID not known");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (wpa_ie_len == 0 && rsn_ie_len == 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - no WPA/RSN IE");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (ssid = group; ssid; ssid = ssid->pnext) {
|
2008-11-23 18:34:26 +01:00
|
|
|
int check_ssid = 1;
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (ssid->disabled) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - disabled");
|
|
|
|
continue;
|
|
|
|
}
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2008-11-23 18:34:26 +01:00
|
|
|
#ifdef CONFIG_WPS
|
|
|
|
if (ssid->ssid_len == 0 &&
|
2009-01-23 12:10:58 +01:00
|
|
|
wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
|
2008-11-23 18:34:26 +01:00
|
|
|
check_ssid = 0;
|
|
|
|
#endif /* CONFIG_WPS */
|
|
|
|
|
|
|
|
if (check_ssid &&
|
|
|
|
(ssid_len != ssid->ssid_len ||
|
|
|
|
os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"SSID mismatch");
|
|
|
|
continue;
|
|
|
|
}
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (ssid->bssid_set &&
|
|
|
|
os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
|
|
|
|
{
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"BSSID mismatch");
|
|
|
|
continue;
|
|
|
|
}
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2009-01-23 12:10:58 +01:00
|
|
|
if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
|
2008-09-26 16:24:40 +02:00
|
|
|
continue;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, " selected WPA AP "
|
|
|
|
MACSTR " ssid='%s'",
|
|
|
|
MAC2STR(bss->bssid),
|
|
|
|
wpa_ssid_txt(ssid_, ssid_len));
|
|
|
|
*selected_ssid = ssid;
|
2010-01-02 15:16:02 +01:00
|
|
|
return wpa_bss_get(wpa_s, bss->bssid, ssid_, ssid_len);
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-09-26 16:24:40 +02:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-02 15:16:02 +01:00
|
|
|
static struct wpa_bss *
|
2008-09-26 16:24:40 +02:00
|
|
|
wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
|
2010-01-02 15:41:38 +01:00
|
|
|
struct wpa_scan_results *scan_res,
|
2008-09-26 16:24:40 +02:00
|
|
|
struct wpa_ssid *group,
|
|
|
|
struct wpa_ssid **selected_ssid)
|
|
|
|
{
|
|
|
|
struct wpa_ssid *ssid;
|
|
|
|
struct wpa_scan_res *bss;
|
|
|
|
size_t i;
|
|
|
|
struct wpa_blacklist *e;
|
|
|
|
const u8 *ie;
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_printf(MSG_DEBUG, "Try to find non-WPA AP");
|
2010-01-02 15:41:38 +01:00
|
|
|
for (i = 0; i < scan_res->num; i++) {
|
2008-02-28 02:34:43 +01:00
|
|
|
const u8 *ssid_;
|
|
|
|
u8 wpa_ie_len, rsn_ie_len, ssid_len;
|
2010-01-02 15:41:38 +01:00
|
|
|
bss = scan_res->res[i];
|
2008-02-28 02:34:43 +01:00
|
|
|
|
|
|
|
ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
|
|
|
|
ssid_ = ie ? ie + 2 : (u8 *) "";
|
|
|
|
ssid_len = ie ? ie[1] : 0;
|
|
|
|
|
|
|
|
ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
|
|
|
|
wpa_ie_len = ie ? ie[1] : 0;
|
|
|
|
|
|
|
|
ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
|
|
|
|
rsn_ie_len = ie ? ie[1] : 0;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
|
|
|
|
"wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
|
|
|
|
(int) i, MAC2STR(bss->bssid),
|
|
|
|
wpa_ssid_txt(ssid_, ssid_len),
|
|
|
|
wpa_ie_len, rsn_ie_len, bss->caps);
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
e = wpa_blacklist_get(wpa_s, bss->bssid);
|
|
|
|
if (e && e->count > 1) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - blacklisted");
|
|
|
|
continue;
|
|
|
|
}
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2009-10-15 20:58:58 +02:00
|
|
|
if (ssid_len == 0) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - SSID not known");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
for (ssid = group; ssid; ssid = ssid->pnext) {
|
2008-11-23 18:34:26 +01:00
|
|
|
int check_ssid = ssid->ssid_len != 0;
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (ssid->disabled) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - disabled");
|
|
|
|
continue;
|
|
|
|
}
|
2008-09-26 16:24:40 +02:00
|
|
|
|
2008-11-23 18:34:26 +01:00
|
|
|
#ifdef CONFIG_WPS
|
|
|
|
if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
|
|
|
|
/* Only allow wildcard SSID match if an AP
|
|
|
|
* advertises active WPS operation that matches
|
|
|
|
* with our mode. */
|
|
|
|
check_ssid = 1;
|
|
|
|
if (ssid->ssid_len == 0 &&
|
2009-01-23 12:10:58 +01:00
|
|
|
wpas_wps_ssid_wildcard_ok(wpa_s, ssid,
|
|
|
|
bss))
|
2008-11-23 18:34:26 +01:00
|
|
|
check_ssid = 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_WPS */
|
|
|
|
|
|
|
|
if (check_ssid &&
|
2008-02-28 02:34:43 +01:00
|
|
|
(ssid_len != ssid->ssid_len ||
|
|
|
|
os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"SSID mismatch");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ssid->bssid_set &&
|
|
|
|
os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
|
|
|
|
{
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"BSSID mismatch");
|
|
|
|
continue;
|
|
|
|
}
|
2009-09-13 19:27:54 +02:00
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
|
2008-11-23 18:34:26 +01:00
|
|
|
!(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
|
2008-02-28 02:34:43 +01:00
|
|
|
!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA))
|
|
|
|
{
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"non-WPA network not allowed");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2009-09-13 19:27:54 +02:00
|
|
|
if ((ssid->key_mgmt &
|
2008-08-31 21:57:28 +02:00
|
|
|
(WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
|
|
|
|
WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK |
|
|
|
|
WPA_KEY_MGMT_IEEE8021X_SHA256 |
|
|
|
|
WPA_KEY_MGMT_PSK_SHA256)) &&
|
2008-02-28 02:34:43 +01:00
|
|
|
(wpa_ie_len != 0 || rsn_ie_len != 0)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"WPA network");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!wpa_supplicant_match_privacy(bss, ssid)) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"privacy mismatch");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bss->caps & IEEE80211_CAP_IBSS) {
|
|
|
|
wpa_printf(MSG_DEBUG, " skip - "
|
|
|
|
"IBSS (adhoc) network");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, " selected non-WPA AP "
|
|
|
|
MACSTR " ssid='%s'",
|
|
|
|
MAC2STR(bss->bssid),
|
|
|
|
wpa_ssid_txt(ssid_, ssid_len));
|
2008-09-26 16:24:40 +02:00
|
|
|
*selected_ssid = ssid;
|
2010-01-02 15:16:02 +01:00
|
|
|
return wpa_bss_get(wpa_s, bss->bssid, ssid_, ssid_len);
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-09-26 16:24:40 +02:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-02 15:16:02 +01:00
|
|
|
static struct wpa_bss *
|
2010-01-02 15:41:38 +01:00
|
|
|
wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
|
|
|
|
struct wpa_scan_results *scan_res,
|
|
|
|
struct wpa_ssid *group,
|
2008-09-26 16:24:40 +02:00
|
|
|
struct wpa_ssid **selected_ssid)
|
|
|
|
{
|
2010-01-02 15:16:02 +01:00
|
|
|
struct wpa_bss *selected;
|
2008-09-26 16:24:40 +02:00
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
|
|
|
|
group->priority);
|
|
|
|
|
|
|
|
/* First, try to find WPA-enabled AP */
|
2010-01-02 15:41:38 +01:00
|
|
|
selected = wpa_supplicant_select_bss_wpa(wpa_s, scan_res, group,
|
|
|
|
selected_ssid);
|
2008-09-26 16:24:40 +02:00
|
|
|
if (selected)
|
|
|
|
return selected;
|
|
|
|
|
|
|
|
/* If no WPA-enabled AP found, try to find non-WPA AP, if configuration
|
|
|
|
* allows this. */
|
2010-01-02 15:41:38 +01:00
|
|
|
return wpa_supplicant_select_bss_non_wpa(wpa_s, scan_res, group,
|
|
|
|
selected_ssid);
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-02 15:16:02 +01:00
|
|
|
static struct wpa_bss *
|
2009-09-29 13:30:11 +02:00
|
|
|
wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
|
2010-01-02 15:41:38 +01:00
|
|
|
struct wpa_scan_results *scan_res,
|
2009-09-29 13:30:11 +02:00
|
|
|
struct wpa_ssid **selected_ssid)
|
2008-02-28 02:34:43 +01:00
|
|
|
{
|
2010-01-02 15:16:02 +01:00
|
|
|
struct wpa_bss *selected = NULL;
|
2009-09-29 13:30:11 +02:00
|
|
|
int prio;
|
|
|
|
|
|
|
|
while (selected == NULL) {
|
|
|
|
for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
|
|
|
|
selected = wpa_supplicant_select_bss(
|
2010-01-02 15:41:38 +01:00
|
|
|
wpa_s, scan_res, wpa_s->conf->pssid[prio],
|
2009-09-29 13:30:11 +02:00
|
|
|
selected_ssid);
|
|
|
|
if (selected)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (selected == NULL && wpa_s->blacklist) {
|
|
|
|
wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
|
|
|
|
"and try again");
|
|
|
|
wpa_blacklist_clear(wpa_s);
|
|
|
|
wpa_s->blacklist_cleared++;
|
|
|
|
} else if (selected == NULL)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return selected;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
|
|
|
|
int timeout)
|
|
|
|
{
|
|
|
|
if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
|
|
|
|
/*
|
|
|
|
* Quick recovery if the initial scan results were not
|
|
|
|
* complete when fetched before the first scan request.
|
|
|
|
*/
|
|
|
|
wpa_s->scan_res_tried++;
|
|
|
|
timeout = 0;
|
2009-10-14 21:05:58 +02:00
|
|
|
} else if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
|
|
|
|
/*
|
|
|
|
* No networks are enabled; short-circuit request so
|
|
|
|
* we don't wait timeout seconds before transitioning
|
|
|
|
* to INACTIVE state.
|
|
|
|
*/
|
|
|
|
wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
|
|
|
|
return;
|
2009-09-29 13:30:11 +02:00
|
|
|
}
|
|
|
|
wpa_supplicant_req_scan(wpa_s, timeout, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
|
2010-01-02 15:16:02 +01:00
|
|
|
struct wpa_bss *selected,
|
2009-09-29 13:30:11 +02:00
|
|
|
struct wpa_ssid *ssid)
|
|
|
|
{
|
|
|
|
if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
|
|
|
|
"PBC session overlap");
|
|
|
|
wpa_supplicant_req_new_scan(wpa_s, 10);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do not trigger new association unless the BSSID has changed or if
|
|
|
|
* reassociation is requested. If we are in process of associating with
|
|
|
|
* the selected BSSID, do not trigger new attempt.
|
|
|
|
*/
|
|
|
|
if (wpa_s->reassociate ||
|
|
|
|
(os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
|
|
|
|
(wpa_s->wpa_state != WPA_ASSOCIATING ||
|
|
|
|
os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
|
|
|
|
0))) {
|
|
|
|
if (wpa_supplicant_scard_init(wpa_s, ssid)) {
|
|
|
|
wpa_supplicant_req_new_scan(wpa_s, 10);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
wpa_supplicant_associate(wpa_s, selected, ssid);
|
|
|
|
} else {
|
|
|
|
wpa_printf(MSG_DEBUG, "Already associated with the selected "
|
|
|
|
"AP");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-09-29 16:11:36 +02:00
|
|
|
static struct wpa_ssid *
|
|
|
|
wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
int prio;
|
|
|
|
struct wpa_ssid *ssid;
|
|
|
|
|
|
|
|
for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
|
|
|
|
for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
|
|
|
|
{
|
|
|
|
if (ssid->disabled)
|
|
|
|
continue;
|
|
|
|
if (ssid->mode == IEEE80211_MODE_IBSS ||
|
|
|
|
ssid->mode == IEEE80211_MODE_AP)
|
|
|
|
return ssid;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
|
|
|
|
* on BSS added and BSS changed events */
|
2009-11-29 16:06:03 +01:00
|
|
|
static void wpa_supplicant_rsn_preauth_scan_results(
|
2010-01-02 15:41:38 +01:00
|
|
|
struct wpa_supplicant *wpa_s, struct wpa_scan_results *scan_res)
|
2009-11-29 16:06:03 +01:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
|
|
|
|
return;
|
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
for (i = scan_res->num - 1; i >= 0; i--) {
|
2009-11-29 16:06:03 +01:00
|
|
|
const u8 *ssid, *rsn;
|
|
|
|
struct wpa_scan_res *r;
|
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
r = scan_res->res[i];
|
2009-11-29 16:06:03 +01:00
|
|
|
|
|
|
|
ssid = wpa_scan_get_ie(r, WLAN_EID_SSID);
|
|
|
|
if (ssid == NULL)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
rsn = wpa_scan_get_ie(r, WLAN_EID_RSN);
|
|
|
|
if (rsn == NULL)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
rsn_preauth_scan_result(wpa_s->wpa, r->bssid, ssid, rsn);
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2010-01-02 12:57:44 +01:00
|
|
|
static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
2009-09-29 13:30:11 +02:00
|
|
|
{
|
2010-01-02 15:16:02 +01:00
|
|
|
struct wpa_bss *selected;
|
2008-02-28 02:34:43 +01:00
|
|
|
struct wpa_ssid *ssid = NULL;
|
2010-01-02 15:41:38 +01:00
|
|
|
struct wpa_scan_results *scan_res;
|
2008-02-28 02:34:43 +01:00
|
|
|
|
2009-05-27 20:06:40 +02:00
|
|
|
wpa_supplicant_notify_scanning(wpa_s, 0);
|
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
scan_res = wpa_supplicant_get_scan_results(wpa_s,
|
|
|
|
data ? &data->scan_info :
|
|
|
|
NULL, 1);
|
|
|
|
if (scan_res == NULL) {
|
2008-02-28 02:34:43 +01:00
|
|
|
if (wpa_s->conf->ap_scan == 2)
|
|
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
|
|
|
|
"scanning again");
|
2009-09-29 13:30:11 +02:00
|
|
|
wpa_supplicant_req_new_scan(wpa_s, 1);
|
|
|
|
return;
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
2008-09-24 11:51:08 +02:00
|
|
|
/*
|
|
|
|
* Don't post the results if this was the initial cached
|
|
|
|
* and there were no results.
|
|
|
|
*/
|
|
|
|
if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1 &&
|
2010-01-02 15:41:38 +01:00
|
|
|
scan_res->num == 0) {
|
2008-09-24 11:51:08 +02:00
|
|
|
wpa_msg(wpa_s, MSG_DEBUG, "Cached scan results are "
|
|
|
|
"empty - not posting");
|
|
|
|
} else {
|
2009-11-10 14:59:41 +01:00
|
|
|
wpa_printf(MSG_DEBUG, "New scan results available");
|
|
|
|
wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
|
2009-09-13 19:53:32 +02:00
|
|
|
wpas_notify_scan_results(wpa_s);
|
2008-09-24 11:51:08 +02:00
|
|
|
}
|
2008-02-28 02:34:43 +01:00
|
|
|
|
2009-09-13 19:53:32 +02:00
|
|
|
wpas_notify_scan_done(wpa_s, 1);
|
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
|
|
|
|
wpa_scan_results_free(scan_res);
|
2008-02-28 02:34:43 +01:00
|
|
|
return;
|
2010-01-02 15:41:38 +01:00
|
|
|
}
|
2008-02-28 02:34:43 +01:00
|
|
|
|
2009-09-14 16:25:03 +02:00
|
|
|
if (wpa_s->disconnected) {
|
|
|
|
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
|
2010-01-02 15:41:38 +01:00
|
|
|
wpa_scan_results_free(scan_res);
|
2009-09-14 16:25:03 +02:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
if (bgscan_notify_scan(wpa_s) == 1) {
|
|
|
|
wpa_scan_results_free(scan_res);
|
2009-09-14 23:08:24 +02:00
|
|
|
return;
|
2010-01-02 15:41:38 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
|
2009-09-14 23:08:24 +02:00
|
|
|
|
2010-01-02 15:41:38 +01:00
|
|
|
selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
|
|
|
|
wpa_scan_results_free(scan_res);
|
2009-11-29 16:06:03 +01:00
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (selected) {
|
2009-09-29 13:30:11 +02:00
|
|
|
wpa_supplicant_connect(wpa_s, selected, ssid);
|
2008-02-28 02:34:43 +01:00
|
|
|
} else {
|
2009-09-29 13:30:11 +02:00
|
|
|
wpa_printf(MSG_DEBUG, "No suitable network found");
|
2009-09-29 16:11:36 +02:00
|
|
|
ssid = wpa_supplicant_pick_new_network(wpa_s);
|
|
|
|
if (ssid) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Setup a new network");
|
|
|
|
wpa_supplicant_associate(wpa_s, NULL, ssid);
|
|
|
|
} else
|
|
|
|
wpa_supplicant_req_new_scan(wpa_s, 5);
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_NO_SCAN_PROCESSING */
|
|
|
|
|
|
|
|
|
2009-03-20 21:26:41 +01:00
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
|
|
static void wpa_assoc_set_ft_params(struct wpa_supplicant *wpa_s,
|
|
|
|
const u8 *ftie, const u8 *mdie)
|
|
|
|
{
|
|
|
|
const u8 *mobility_domain = NULL;
|
|
|
|
const u8 *r0kh_id = NULL;
|
|
|
|
size_t r0kh_id_len = 0;
|
|
|
|
const u8 *r1kh_id = NULL;
|
|
|
|
struct rsn_ftie *hdr;
|
|
|
|
const u8 *pos, *end;
|
|
|
|
|
|
|
|
if (mdie == NULL || ftie == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (mdie[1] >= MOBILITY_DOMAIN_ID_LEN) {
|
|
|
|
mobility_domain = mdie + 2;
|
|
|
|
#ifdef CONFIG_SME
|
|
|
|
wpa_s->sme.ft_used = 1;
|
|
|
|
os_memcpy(wpa_s->sme.mobility_domain, mobility_domain, 2);
|
|
|
|
#endif /* CONFIG_SME */
|
|
|
|
}
|
|
|
|
if (ftie[1] >= sizeof(struct rsn_ftie)) {
|
|
|
|
end = ftie + 2 + ftie[1];
|
|
|
|
hdr = (struct rsn_ftie *) (ftie + 2);
|
|
|
|
pos = (const u8 *) (hdr + 1);
|
|
|
|
while (pos + 1 < end) {
|
|
|
|
if (pos + 2 + pos[1] > end)
|
|
|
|
break;
|
|
|
|
if (pos[0] == FTIE_SUBELEM_R1KH_ID &&
|
|
|
|
pos[1] == FT_R1KH_ID_LEN)
|
|
|
|
r1kh_id = pos + 2;
|
|
|
|
else if (pos[0] == FTIE_SUBELEM_R0KH_ID &&
|
|
|
|
pos[1] >= 1 && pos[1] <= FT_R0KH_ID_MAX_LEN) {
|
|
|
|
r0kh_id = pos + 2;
|
|
|
|
r0kh_id_len = pos[1];
|
|
|
|
}
|
|
|
|
pos += 2 + pos[1];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
wpa_sm_set_ft_params(wpa_s->wpa, mobility_domain, r0kh_id,
|
|
|
|
r0kh_id_len, r1kh_id);
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_IEEE80211R */
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
static void wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
int l, len, found = 0, wpa_found, rsn_found;
|
2009-03-20 21:26:41 +01:00
|
|
|
const u8 *p;
|
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
|
|
const u8 *mdie = NULL, *ftie = NULL;
|
|
|
|
#endif /* CONFIG_IEEE80211R */
|
2008-02-28 02:34:43 +01:00
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "Association info event");
|
|
|
|
if (data->assoc_info.req_ies)
|
|
|
|
wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
|
|
|
|
data->assoc_info.req_ies_len);
|
|
|
|
if (data->assoc_info.resp_ies)
|
|
|
|
wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
|
|
|
|
data->assoc_info.resp_ies_len);
|
|
|
|
if (data->assoc_info.beacon_ies)
|
|
|
|
wpa_hexdump(MSG_DEBUG, "beacon_ies",
|
|
|
|
data->assoc_info.beacon_ies,
|
|
|
|
data->assoc_info.beacon_ies_len);
|
2009-12-28 12:23:13 +01:00
|
|
|
if (data->assoc_info.freq)
|
|
|
|
wpa_printf(MSG_DEBUG, "freq=%u MHz", data->assoc_info.freq);
|
2008-02-28 02:34:43 +01:00
|
|
|
|
|
|
|
p = data->assoc_info.req_ies;
|
|
|
|
l = data->assoc_info.req_ies_len;
|
|
|
|
|
|
|
|
/* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
|
|
|
|
while (p && l >= 2) {
|
|
|
|
len = p[1] + 2;
|
|
|
|
if (len > l) {
|
|
|
|
wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
|
|
|
|
p, l);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
|
|
|
|
(os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
|
|
|
|
(p[0] == WLAN_EID_RSN && p[1] >= 2)) {
|
|
|
|
if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
|
|
|
|
break;
|
|
|
|
found = 1;
|
|
|
|
wpa_find_assoc_pmkid(wpa_s);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
l -= len;
|
|
|
|
p += len;
|
|
|
|
}
|
|
|
|
if (!found && data->assoc_info.req_ies)
|
|
|
|
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
|
|
|
|
|
2009-03-20 21:26:41 +01:00
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
|
|
p = data->assoc_info.resp_ies;
|
|
|
|
l = data->assoc_info.resp_ies_len;
|
|
|
|
|
2009-08-26 22:51:12 +02:00
|
|
|
/* Go through the IEs and make a copy of the FT/MD IE, if present. */
|
2009-03-20 21:26:41 +01:00
|
|
|
while (p && l >= 2) {
|
|
|
|
len = p[1] + 2;
|
|
|
|
if (len > l) {
|
|
|
|
wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
|
|
|
|
p, l);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (p[0] == WLAN_EID_FAST_BSS_TRANSITION)
|
|
|
|
ftie = p;
|
|
|
|
else if (p[0] == WLAN_EID_MOBILITY_DOMAIN)
|
|
|
|
mdie = p;
|
|
|
|
l -= len;
|
|
|
|
p += len;
|
|
|
|
}
|
|
|
|
|
|
|
|
wpa_assoc_set_ft_params(wpa_s, ftie, mdie);
|
|
|
|
#endif /* CONFIG_IEEE80211R */
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
/* WPA/RSN IE from Beacon/ProbeResp */
|
|
|
|
p = data->assoc_info.beacon_ies;
|
|
|
|
l = data->assoc_info.beacon_ies_len;
|
|
|
|
|
|
|
|
/* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
|
|
|
|
*/
|
|
|
|
wpa_found = rsn_found = 0;
|
|
|
|
while (p && l >= 2) {
|
|
|
|
len = p[1] + 2;
|
|
|
|
if (len > l) {
|
|
|
|
wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
|
|
|
|
p, l);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!wpa_found &&
|
|
|
|
p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
|
|
|
|
os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
|
|
|
|
wpa_found = 1;
|
|
|
|
wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!rsn_found &&
|
|
|
|
p[0] == WLAN_EID_RSN && p[1] >= 2) {
|
|
|
|
rsn_found = 1;
|
|
|
|
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
|
|
|
|
}
|
|
|
|
|
|
|
|
l -= len;
|
|
|
|
p += len;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!wpa_found && data->assoc_info.beacon_ies)
|
|
|
|
wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
|
|
|
|
if (!rsn_found && data->assoc_info.beacon_ies)
|
|
|
|
wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
|
|
|
|
if (wpa_found || rsn_found)
|
|
|
|
wpa_s->ap_ies_from_associnfo = 1;
|
2009-12-28 12:23:13 +01:00
|
|
|
|
|
|
|
wpa_s->assoc_freq = data->assoc_info.freq;
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
u8 bssid[ETH_ALEN];
|
|
|
|
int ft_completed = wpa_ft_is_completed(wpa_s->wpa);
|
2009-09-13 19:53:32 +02:00
|
|
|
int bssid_changed;
|
2009-09-15 09:48:30 +02:00
|
|
|
struct wpa_driver_capa capa;
|
2008-02-28 02:34:43 +01:00
|
|
|
|
|
|
|
if (data)
|
|
|
|
wpa_supplicant_event_associnfo(wpa_s, data);
|
|
|
|
|
|
|
|
wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
|
2009-03-20 21:26:41 +01:00
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
|
2008-02-28 02:34:43 +01:00
|
|
|
os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
|
2009-03-20 21:26:41 +01:00
|
|
|
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
|
2008-02-28 02:34:43 +01:00
|
|
|
(wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
|
|
|
|
os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
|
|
|
|
wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
|
|
|
|
MACSTR, MAC2STR(bssid));
|
2009-09-13 19:53:32 +02:00
|
|
|
bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
|
2008-02-28 02:34:43 +01:00
|
|
|
os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
|
|
|
|
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
|
2009-09-13 19:53:32 +02:00
|
|
|
if (bssid_changed)
|
|
|
|
wpas_notify_bssid_changed(wpa_s);
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
|
|
|
|
wpa_clear_keys(wpa_s, bssid);
|
|
|
|
}
|
|
|
|
if (wpa_supplicant_select_config(wpa_s) < 0) {
|
|
|
|
wpa_supplicant_disassociate(
|
|
|
|
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
|
|
|
|
return;
|
|
|
|
}
|
2010-01-02 15:59:19 +01:00
|
|
|
if (wpa_s->current_ssid) {
|
|
|
|
struct wpa_bss *bss = NULL;
|
|
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
|
|
if (ssid->ssid_len > 0)
|
|
|
|
bss = wpa_bss_get(wpa_s, bssid,
|
|
|
|
ssid->ssid, ssid->ssid_len);
|
|
|
|
if (!bss)
|
|
|
|
bss = wpa_bss_get_bssid(wpa_s, bssid);
|
|
|
|
if (bss)
|
|
|
|
wpa_s->current_bss = bss;
|
|
|
|
}
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
2009-11-17 18:25:05 +01:00
|
|
|
#ifdef CONFIG_SME
|
|
|
|
os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
|
|
|
|
wpa_s->sme.prev_bssid_set = 1;
|
|
|
|
#endif /* CONFIG_SME */
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
|
|
|
|
if (wpa_s->current_ssid) {
|
|
|
|
/* When using scanning (ap_scan=1), SIM PC/SC interface can be
|
|
|
|
* initialized before association, but for other modes,
|
|
|
|
* initialize PC/SC here, if the current configuration needs
|
|
|
|
* smartcard or SIM/USIM. */
|
|
|
|
wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
|
|
|
|
}
|
|
|
|
wpa_sm_notify_assoc(wpa_s->wpa, bssid);
|
|
|
|
l2_packet_notify_auth_start(wpa_s->l2);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set portEnabled first to FALSE in order to get EAP state machine out
|
|
|
|
* of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
|
|
|
|
* state machine may transit to AUTHENTICATING state based on obsolete
|
|
|
|
* eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
|
|
|
|
* AUTHENTICATED without ever giving chance to EAP state machine to
|
|
|
|
* reset the state.
|
|
|
|
*/
|
|
|
|
if (!ft_completed) {
|
|
|
|
eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
|
|
|
|
eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
|
|
|
|
}
|
2008-08-31 21:57:28 +02:00
|
|
|
if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
|
2008-02-28 02:34:43 +01:00
|
|
|
eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
|
|
|
|
/* 802.1X::portControl = Auto */
|
|
|
|
eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
|
|
|
|
wpa_s->eapol_received = 0;
|
|
|
|
if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
|
2009-12-04 21:09:06 +01:00
|
|
|
wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
|
|
|
|
(wpa_s->current_ssid &&
|
|
|
|
wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_supplicant_cancel_auth_timeout(wpa_s);
|
|
|
|
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
|
|
|
|
} else if (!ft_completed) {
|
|
|
|
/* Timeout for receiving the first EAPOL packet */
|
|
|
|
wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
|
|
|
|
}
|
|
|
|
wpa_supplicant_cancel_scan(wpa_s);
|
|
|
|
|
2009-03-20 21:26:41 +01:00
|
|
|
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
|
2008-08-31 21:57:28 +02:00
|
|
|
wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
|
2008-02-28 02:34:43 +01:00
|
|
|
/*
|
|
|
|
* We are done; the driver will take care of RSN 4-way
|
|
|
|
* handshake.
|
|
|
|
*/
|
|
|
|
wpa_supplicant_cancel_auth_timeout(wpa_s);
|
|
|
|
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
|
|
|
|
eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
|
|
|
|
eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
|
|
|
|
}
|
2009-09-04 17:04:41 +02:00
|
|
|
|
|
|
|
if (wpa_s->pending_eapol_rx) {
|
|
|
|
struct os_time now, age;
|
|
|
|
os_get_time(&now);
|
|
|
|
os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
|
|
|
|
if (age.sec == 0 && age.usec < 100000 &&
|
|
|
|
os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
|
|
|
|
0) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Process pending EAPOL frame "
|
|
|
|
"that was received just before association "
|
|
|
|
"notification");
|
|
|
|
wpa_supplicant_rx_eapol(
|
|
|
|
wpa_s, wpa_s->pending_eapol_rx_src,
|
|
|
|
wpabuf_head(wpa_s->pending_eapol_rx),
|
|
|
|
wpabuf_len(wpa_s->pending_eapol_rx));
|
|
|
|
}
|
|
|
|
wpabuf_free(wpa_s->pending_eapol_rx);
|
|
|
|
wpa_s->pending_eapol_rx = NULL;
|
|
|
|
}
|
2009-09-14 23:08:24 +02:00
|
|
|
|
|
|
|
#ifdef CONFIG_BGSCAN
|
|
|
|
if (wpa_s->current_ssid != wpa_s->bgscan_ssid) {
|
|
|
|
bgscan_deinit(wpa_s);
|
|
|
|
if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) {
|
|
|
|
if (bgscan_init(wpa_s, wpa_s->current_ssid)) {
|
|
|
|
wpa_printf(MSG_DEBUG, "Failed to initialize "
|
|
|
|
"bgscan");
|
|
|
|
/*
|
|
|
|
* Live without bgscan; it is only used as a
|
|
|
|
* roaming optimization, so the initial
|
|
|
|
* connection is not affected.
|
|
|
|
*/
|
|
|
|
} else
|
|
|
|
wpa_s->bgscan_ssid = wpa_s->current_ssid;
|
|
|
|
} else
|
|
|
|
wpa_s->bgscan_ssid = NULL;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_BGSCAN */
|
2009-09-15 09:48:30 +02:00
|
|
|
|
|
|
|
if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
|
|
|
|
wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
|
|
|
|
wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
|
|
|
|
capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
|
|
|
|
/* Set static WEP keys again */
|
|
|
|
wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
|
|
|
|
}
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s)
|
|
|
|
{
|
|
|
|
const u8 *bssid;
|
2009-10-12 08:39:55 +02:00
|
|
|
#ifdef CONFIG_SME
|
|
|
|
int authenticating;
|
|
|
|
u8 prev_pending_bssid[ETH_ALEN];
|
|
|
|
|
|
|
|
authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
|
|
|
|
os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
|
|
|
|
#endif /* CONFIG_SME */
|
2008-02-28 02:34:43 +01:00
|
|
|
|
|
|
|
if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
|
|
|
|
/*
|
|
|
|
* At least Host AP driver and a Prism3 card seemed to be
|
|
|
|
* generating streams of disconnected events when configuring
|
|
|
|
* IBSS for WPA-None. Ignore them for now.
|
|
|
|
*/
|
|
|
|
wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
|
|
|
|
"IBSS/WPA-None mode");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
|
2008-08-31 21:57:28 +02:00
|
|
|
wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
|
|
|
|
"pre-shared key may be incorrect");
|
|
|
|
}
|
|
|
|
if (wpa_s->wpa_state >= WPA_ASSOCIATED)
|
|
|
|
wpa_supplicant_req_scan(wpa_s, 0, 100000);
|
|
|
|
bssid = wpa_s->bssid;
|
2008-06-03 17:08:48 +02:00
|
|
|
if (is_zero_ether_addr(bssid))
|
2008-02-28 02:34:43 +01:00
|
|
|
bssid = wpa_s->pending_bssid;
|
|
|
|
wpa_blacklist_add(wpa_s, bssid);
|
|
|
|
wpa_sm_notify_disassoc(wpa_s->wpa);
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "- Disconnect event - "
|
|
|
|
"remove keys");
|
|
|
|
if (wpa_supplicant_dynamic_keys(wpa_s)) {
|
|
|
|
wpa_s->keys_cleared = 0;
|
|
|
|
wpa_clear_keys(wpa_s, wpa_s->bssid);
|
|
|
|
}
|
|
|
|
wpa_supplicant_mark_disassoc(wpa_s);
|
2009-09-14 23:08:24 +02:00
|
|
|
bgscan_deinit(wpa_s);
|
2009-10-12 08:39:55 +02:00
|
|
|
#ifdef CONFIG_SME
|
|
|
|
if (authenticating &&
|
|
|
|
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
|
|
|
|
/*
|
|
|
|
* mac80211-workaround to force deauth on failed auth cmd,
|
|
|
|
* requires us to remain in authenticating state to allow the
|
|
|
|
* second authentication attempt to be continued properly.
|
|
|
|
*/
|
|
|
|
wpa_printf(MSG_DEBUG, "SME: Allow pending authentication to "
|
|
|
|
"proceed after disconnection event");
|
|
|
|
wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
|
|
|
|
os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_SME */
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-11-08 03:43:12 +01:00
|
|
|
#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
|
|
|
|
static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
|
|
|
|
void *sock_ctx)
|
|
|
|
{
|
|
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
|
|
|
|
|
|
if (!wpa_s->pending_mic_error_report)
|
|
|
|
return;
|
|
|
|
|
|
|
|
wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
|
|
|
|
wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
|
|
|
|
wpa_s->pending_mic_error_report = 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
|
|
|
|
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
static void
|
|
|
|
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
int pairwise;
|
|
|
|
struct os_time t;
|
|
|
|
|
|
|
|
wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
|
|
|
|
pairwise = (data && data->michael_mic_failure.unicast);
|
|
|
|
os_get_time(&t);
|
2008-11-08 03:43:12 +01:00
|
|
|
if ((wpa_s->last_michael_mic_error &&
|
|
|
|
t.sec - wpa_s->last_michael_mic_error <= 60) ||
|
|
|
|
wpa_s->pending_mic_error_report) {
|
|
|
|
if (wpa_s->pending_mic_error_report) {
|
|
|
|
/*
|
|
|
|
* Send the pending MIC error report immediately since
|
|
|
|
* we are going to start countermeasures and AP better
|
|
|
|
* do the same.
|
|
|
|
*/
|
|
|
|
wpa_sm_key_request(wpa_s->wpa, 1,
|
|
|
|
wpa_s->pending_mic_error_pairwise);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Send the new MIC error report immediately since we are going
|
|
|
|
* to start countermeasures and AP better do the same.
|
|
|
|
*/
|
|
|
|
wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
/* initialize countermeasures */
|
|
|
|
wpa_s->countermeasures = 1;
|
|
|
|
wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Need to wait for completion of request frame. We do not get
|
|
|
|
* any callback for the message completion, so just wait a
|
|
|
|
* short while and hope for the best. */
|
|
|
|
os_sleep(0, 10000);
|
|
|
|
|
|
|
|
wpa_drv_set_countermeasures(wpa_s, 1);
|
|
|
|
wpa_supplicant_deauthenticate(wpa_s,
|
|
|
|
WLAN_REASON_MICHAEL_MIC_FAILURE);
|
|
|
|
eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
|
|
|
|
wpa_s, NULL);
|
|
|
|
eloop_register_timeout(60, 0,
|
|
|
|
wpa_supplicant_stop_countermeasures,
|
|
|
|
wpa_s, NULL);
|
|
|
|
/* TODO: mark the AP rejected for 60 second. STA is
|
|
|
|
* allowed to associate with another AP.. */
|
2008-11-08 03:43:12 +01:00
|
|
|
} else {
|
|
|
|
#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
|
|
|
|
if (wpa_s->mic_errors_seen) {
|
|
|
|
/*
|
|
|
|
* Reduce the effectiveness of Michael MIC error
|
|
|
|
* reports as a means for attacking against TKIP if
|
|
|
|
* more than one MIC failure is noticed with the same
|
|
|
|
* PTK. We delay the transmission of the reports by a
|
|
|
|
* random time between 0 and 60 seconds in order to
|
|
|
|
* force the attacker wait 60 seconds before getting
|
|
|
|
* the information on whether a frame resulted in a MIC
|
|
|
|
* failure.
|
|
|
|
*/
|
|
|
|
u8 rval[4];
|
|
|
|
int sec;
|
|
|
|
|
|
|
|
if (os_get_random(rval, sizeof(rval)) < 0)
|
|
|
|
sec = os_random() % 60;
|
|
|
|
else
|
|
|
|
sec = WPA_GET_BE32(rval) % 60;
|
|
|
|
wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
|
|
|
|
"seconds", sec);
|
|
|
|
wpa_s->pending_mic_error_report = 1;
|
|
|
|
wpa_s->pending_mic_error_pairwise = pairwise;
|
|
|
|
eloop_cancel_timeout(
|
|
|
|
wpa_supplicant_delayed_mic_error_report,
|
|
|
|
wpa_s, NULL);
|
|
|
|
eloop_register_timeout(
|
|
|
|
sec, os_random() % 1000000,
|
|
|
|
wpa_supplicant_delayed_mic_error_report,
|
|
|
|
wpa_s, NULL);
|
|
|
|
} else {
|
|
|
|
wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
|
|
|
|
}
|
|
|
|
#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
|
|
|
|
wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
|
|
|
|
#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
wpa_s->last_michael_mic_error = t.sec;
|
2008-11-08 03:43:12 +01:00
|
|
|
wpa_s->mic_errors_seen++;
|
2008-02-28 02:34:43 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-03-02 20:57:00 +01:00
|
|
|
#ifdef CONFIG_TERMINATE_ONLASTIF
|
|
|
|
static int any_interfaces(struct wpa_supplicant *head)
|
|
|
|
{
|
|
|
|
struct wpa_supplicant *wpa_s;
|
|
|
|
|
|
|
|
for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
|
|
|
|
if (!wpa_s->interface_removed)
|
|
|
|
return 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_TERMINATE_ONLASTIF */
|
|
|
|
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
static void
|
|
|
|
wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
switch (data->interface_status.ievent) {
|
|
|
|
case EVENT_INTERFACE_ADDED:
|
|
|
|
if (!wpa_s->interface_removed)
|
|
|
|
break;
|
|
|
|
wpa_s->interface_removed = 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "Configured interface was added.");
|
|
|
|
if (wpa_supplicant_driver_init(wpa_s) < 0) {
|
|
|
|
wpa_printf(MSG_INFO, "Failed to initialize the driver "
|
|
|
|
"after interface was added.");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case EVENT_INTERFACE_REMOVED:
|
|
|
|
wpa_printf(MSG_DEBUG, "Configured interface was removed.");
|
|
|
|
wpa_s->interface_removed = 1;
|
|
|
|
wpa_supplicant_mark_disassoc(wpa_s);
|
|
|
|
l2_packet_deinit(wpa_s->l2);
|
|
|
|
wpa_s->l2 = NULL;
|
2009-03-02 20:57:00 +01:00
|
|
|
#ifdef CONFIG_TERMINATE_ONLASTIF
|
|
|
|
/* check if last interface */
|
|
|
|
if (!any_interfaces(wpa_s->global->ifaces))
|
|
|
|
eloop_terminate();
|
|
|
|
#endif /* CONFIG_TERMINATE_ONLASTIF */
|
2008-02-28 02:34:43 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_PEERKEY
|
|
|
|
static void
|
|
|
|
wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
if (data == NULL)
|
|
|
|
return;
|
|
|
|
wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_PEERKEY */
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
|
|
static void
|
|
|
|
wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
if (data == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
|
|
|
|
data->ft_ies.ies_len,
|
|
|
|
data->ft_ies.ft_action,
|
2009-03-09 19:45:17 +01:00
|
|
|
data->ft_ies.target_ap,
|
|
|
|
data->ft_ies.ric_ies,
|
|
|
|
data->ft_ies.ric_ies_len) < 0) {
|
2008-02-28 02:34:43 +01:00
|
|
|
/* TODO: prevent MLME/driver from trying to associate? */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_IEEE80211R */
|
|
|
|
|
|
|
|
|
2009-01-15 00:21:55 +01:00
|
|
|
#ifdef CONFIG_IBSS_RSN
|
|
|
|
static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
|
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
if (data == NULL)
|
|
|
|
return;
|
|
|
|
ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_IBSS_RSN */
|
|
|
|
|
|
|
|
|
2010-01-03 12:10:12 +01:00
|
|
|
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
|
2008-02-28 02:34:43 +01:00
|
|
|
union wpa_event_data *data)
|
|
|
|
{
|
|
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
|
|
|
|
switch (event) {
|
2009-03-20 21:26:41 +01:00
|
|
|
case EVENT_AUTH:
|
|
|
|
sme_event_auth(wpa_s, data);
|
|
|
|
break;
|
2008-02-28 02:34:43 +01:00
|
|
|
case EVENT_ASSOC:
|
|
|
|
wpa_supplicant_event_assoc(wpa_s, data);
|
|
|
|
break;
|
|
|
|
case EVENT_DISASSOC:
|
2009-12-04 20:44:13 +01:00
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
|
|
|
|
sme_event_disassoc(wpa_s, data);
|
2009-12-02 16:26:28 +01:00
|
|
|
/* fall through */
|
|
|
|
case EVENT_DEAUTH:
|
2008-02-28 02:34:43 +01:00
|
|
|
wpa_supplicant_event_disassoc(wpa_s);
|
|
|
|
break;
|
|
|
|
case EVENT_MICHAEL_MIC_FAILURE:
|
|
|
|
wpa_supplicant_event_michael_mic_failure(wpa_s, data);
|
|
|
|
break;
|
|
|
|
#ifndef CONFIG_NO_SCAN_PROCESSING
|
|
|
|
case EVENT_SCAN_RESULTS:
|
2010-01-02 12:57:44 +01:00
|
|
|
wpa_supplicant_event_scan_results(wpa_s, data);
|
2008-02-28 02:34:43 +01:00
|
|
|
break;
|
|
|
|
#endif /* CONFIG_NO_SCAN_PROCESSING */
|
|
|
|
case EVENT_ASSOCINFO:
|
|
|
|
wpa_supplicant_event_associnfo(wpa_s, data);
|
|
|
|
break;
|
|
|
|
case EVENT_INTERFACE_STATUS:
|
|
|
|
wpa_supplicant_event_interface_status(wpa_s, data);
|
|
|
|
break;
|
|
|
|
case EVENT_PMKID_CANDIDATE:
|
|
|
|
wpa_supplicant_event_pmkid_candidate(wpa_s, data);
|
|
|
|
break;
|
|
|
|
#ifdef CONFIG_PEERKEY
|
|
|
|
case EVENT_STKSTART:
|
|
|
|
wpa_supplicant_event_stkstart(wpa_s, data);
|
|
|
|
break;
|
|
|
|
#endif /* CONFIG_PEERKEY */
|
|
|
|
#ifdef CONFIG_IEEE80211R
|
|
|
|
case EVENT_FT_RESPONSE:
|
|
|
|
wpa_supplicant_event_ft_response(wpa_s, data);
|
|
|
|
break;
|
|
|
|
#endif /* CONFIG_IEEE80211R */
|
2009-01-15 00:21:55 +01:00
|
|
|
#ifdef CONFIG_IBSS_RSN
|
|
|
|
case EVENT_IBSS_RSN_START:
|
|
|
|
wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
|
|
|
|
break;
|
|
|
|
#endif /* CONFIG_IBSS_RSN */
|
2009-04-01 16:10:36 +02:00
|
|
|
case EVENT_ASSOC_REJECT:
|
|
|
|
sme_event_assoc_reject(wpa_s, data);
|
|
|
|
break;
|
2009-04-23 23:08:24 +02:00
|
|
|
case EVENT_AUTH_TIMED_OUT:
|
|
|
|
sme_event_auth_timed_out(wpa_s, data);
|
|
|
|
break;
|
|
|
|
case EVENT_ASSOC_TIMED_OUT:
|
|
|
|
sme_event_assoc_timed_out(wpa_s, data);
|
|
|
|
break;
|
2009-12-13 22:05:39 +01:00
|
|
|
#ifdef CONFIG_AP
|
|
|
|
case EVENT_TX_STATUS:
|
|
|
|
if (wpa_s->ap_iface == NULL)
|
|
|
|
break;
|
|
|
|
switch (data->tx_status.type) {
|
|
|
|
case WLAN_FC_TYPE_MGMT:
|
|
|
|
ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
|
|
|
|
data->tx_status.data_len,
|
|
|
|
data->tx_status.stype,
|
|
|
|
data->tx_status.ack);
|
|
|
|
break;
|
|
|
|
case WLAN_FC_TYPE_DATA:
|
|
|
|
ap_tx_status(wpa_s, data->tx_status.dst,
|
|
|
|
data->tx_status.data,
|
|
|
|
data->tx_status.data_len,
|
|
|
|
data->tx_status.ack);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case EVENT_RX_FROM_UNKNOWN:
|
|
|
|
if (wpa_s->ap_iface == NULL)
|
|
|
|
break;
|
2010-01-03 12:05:54 +01:00
|
|
|
ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
|
2009-12-13 22:05:39 +01:00
|
|
|
data->rx_from_unknown.len);
|
|
|
|
break;
|
|
|
|
case EVENT_RX_MGMT:
|
|
|
|
if (wpa_s->ap_iface == NULL)
|
|
|
|
break;
|
2010-01-03 11:37:02 +01:00
|
|
|
ap_mgmt_rx(wpa_s, &data->rx_mgmt);
|
2009-12-13 22:05:39 +01:00
|
|
|
break;
|
|
|
|
#endif /* CONFIG_AP */
|
2010-01-03 10:50:26 +01:00
|
|
|
#ifdef CONFIG_CLIENT_MLME
|
|
|
|
case EVENT_MLME_RX: {
|
|
|
|
struct ieee80211_rx_status rx_status;
|
|
|
|
os_memset(&rx_status, 0, sizeof(rx_status));
|
|
|
|
rx_status.freq = data->mlme_rx.freq;
|
|
|
|
rx_status.channel = data->mlme_rx.channel;
|
|
|
|
rx_status.ssi = data->mlme_rx.ssi;
|
|
|
|
ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len,
|
|
|
|
&rx_status);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_CLIENT_MLME */
|
|
|
|
|
2008-02-28 02:34:43 +01:00
|
|
|
default:
|
|
|
|
wpa_printf(MSG_INFO, "Unknown event %d", event);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|