wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
new file mode 100644
index 0000000..a3153aa
--- /dev/null
+++ b/wpa_supplicant/events.c
@@ -0,0 +1,2202 @@
+/*
+ * WPA Supplicant - Driver event processing
+ * Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "eapol_supp/eapol_supp_sm.h"
+#include "rsn_supp/wpa.h"
+#include "eloop.h"
+#include "config.h"
+#include "l2_packet/l2_packet.h"
+#include "wpa_supplicant_i.h"
+#include "driver_i.h"
+#include "pcsc_funcs.h"
+#include "rsn_supp/preauth.h"
+#include "rsn_supp/pmksa_cache.h"
+#include "common/wpa_ctrl.h"
+#include "eap_peer/eap.h"
+#include "ap/hostapd.h"
+#include "p2p/p2p.h"
+#include "notify.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
+#include "crypto/random.h"
+#include "blacklist.h"
+#include "wpas_glue.h"
+#include "wps_supplicant.h"
+#include "ibss_rsn.h"
+#include "sme.h"
+#include "p2p_supplicant.h"
+#include "bgscan.h"
+#include "ap.h"
+#include "bss.h"
+#include "mlme.h"
+#include "scan.h"
+
+
+static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
+{
+ struct wpa_ssid *ssid, *old_ssid;
+
+ if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
+ return 0;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
+ "information");
+ ssid = wpa_supplicant_get_ssid(wpa_s);
+ if (ssid == NULL) {
+ wpa_msg(wpa_s, MSG_INFO,
+ "No network configuration found for the current AP");
+ return -1;
+ }
+
+ if (ssid->disabled) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
+ return -1;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
+ "current AP");
+ if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
+ WPA_KEY_MGMT_WPA_NONE |
+ WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
+ WPA_KEY_MGMT_PSK_SHA256 |
+ WPA_KEY_MGMT_IEEE8021X_SHA256)) {
+ u8 wpa_ie[80];
+ size_t wpa_ie_len = sizeof(wpa_ie);
+ wpa_supplicant_set_suites(wpa_s, NULL, ssid,
+ wpa_ie, &wpa_ie_len);
+ } else {
+ wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
+ }
+
+ if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
+ eapol_sm_invalidate_cached_session(wpa_s->eapol);
+ old_ssid = wpa_s->current_ssid;
+ wpa_s->current_ssid = ssid;
+ wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
+ wpa_supplicant_initiate_eapol(wpa_s);
+ if (old_ssid != wpa_s->current_ssid)
+ wpas_notify_network_changed(wpa_s);
+
+ return 0;
+}
+
+
+static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
+ void *sock_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+
+ if (wpa_s->countermeasures) {
+ wpa_s->countermeasures = 0;
+ wpa_drv_set_countermeasures(wpa_s, 0);
+ wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
+ wpa_supplicant_req_scan(wpa_s, 0, 0);
+ }
+}
+
+
+void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
+{
+ int bssid_changed;
+
+#ifdef CONFIG_IBSS_RSN
+ ibss_rsn_deinit(wpa_s->ibss_rsn);
+ wpa_s->ibss_rsn = NULL;
+#endif /* CONFIG_IBSS_RSN */
+
+ if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
+ return;
+
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
+ bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
+ os_memset(wpa_s->bssid, 0, ETH_ALEN);
+ os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
+ wpa_s->current_bss = NULL;
+ wpa_s->assoc_freq = 0;
+ if (bssid_changed)
+ wpas_notify_bssid_changed(wpa_s);
+
+ eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
+ eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
+ if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
+ eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
+ wpa_s->ap_ies_from_associnfo = 0;
+}
+
+
+static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
+{
+ struct wpa_ie_data ie;
+ int pmksa_set = -1;
+ size_t i;
+
+ if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
+ ie.pmkid == NULL)
+ return;
+
+ for (i = 0; i < ie.num_pmkid; i++) {
+ pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
+ ie.pmkid + i * PMKID_LEN,
+ NULL, NULL, 0);
+ if (pmksa_set == 0) {
+ eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
+ break;
+ }
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
+ "PMKSA cache", pmksa_set == 0 ? "" : "not ");
+}
+
+
+static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ if (data == NULL) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
+ "event");
+ return;
+ }
+ wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
+ " index=%d preauth=%d",
+ MAC2STR(data->pmkid_candidate.bssid),
+ data->pmkid_candidate.index,
+ data->pmkid_candidate.preauth);
+
+ pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
+ data->pmkid_candidate.index,
+ data->pmkid_candidate.preauth);
+}
+
+
+static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
+{
+ if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
+ wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
+ return 0;
+
+#ifdef IEEE8021X_EAPOL
+ if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
+ wpa_s->current_ssid &&
+ !(wpa_s->current_ssid->eapol_flags &
+ (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
+ EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
+ /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
+ * plaintext or static WEP keys). */
+ return 0;
+ }
+#endif /* IEEE8021X_EAPOL */
+
+ return 1;
+}
+
+
+/**
+ * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
+ * @wpa_s: pointer to wpa_supplicant data
+ * @ssid: Configuration data for the network
+ * Returns: 0 on success, -1 on failure
+ *
+ * This function is called when starting authentication with a network that is
+ * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
+ */
+int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *ssid)
+{
+#ifdef IEEE8021X_EAPOL
+ int aka = 0, sim = 0, type;
+
+ if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
+ return 0;
+
+ if (ssid->eap.eap_methods == NULL) {
+ sim = 1;
+ aka = 1;
+ } else {
+ struct eap_method_type *eap = ssid->eap.eap_methods;
+ while (eap->vendor != EAP_VENDOR_IETF ||
+ eap->method != EAP_TYPE_NONE) {
+ if (eap->vendor == EAP_VENDOR_IETF) {
+ if (eap->method == EAP_TYPE_SIM)
+ sim = 1;
+ else if (eap->method == EAP_TYPE_AKA)
+ aka = 1;
+ }
+ eap++;
+ }
+ }
+
+ if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
+ sim = 0;
+ if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
+ aka = 0;
+
+ if (!sim && !aka) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
+ "use SIM, but neither EAP-SIM nor EAP-AKA are "
+ "enabled");
+ return 0;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
+ "(sim=%d aka=%d) - initialize PCSC", sim, aka);
+ if (sim && aka)
+ type = SCARD_TRY_BOTH;
+ else if (aka)
+ type = SCARD_USIM_ONLY;
+ else
+ type = SCARD_GSM_SIM_ONLY;
+
+ wpa_s->scard = scard_init(type);
+ if (wpa_s->scard == NULL) {
+ wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
+ "(pcsc-lite)");
+ return -1;
+ }
+ wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
+ eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
+#endif /* IEEE8021X_EAPOL */
+
+ return 0;
+}
+
+
+#ifndef CONFIG_NO_SCAN_PROCESSING
+static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
+ struct wpa_ssid *ssid)
+{
+ int i, privacy = 0;
+
+ if (ssid->mixed_cell)
+ return 1;
+
+#ifdef CONFIG_WPS
+ if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
+ return 1;
+#endif /* CONFIG_WPS */
+
+ for (i = 0; i < NUM_WEP_KEYS; i++) {
+ if (ssid->wep_key_len[i]) {
+ privacy = 1;
+ break;
+ }
+ }
+#ifdef IEEE8021X_EAPOL
+ if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
+ ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
+ EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
+ privacy = 1;
+#endif /* IEEE8021X_EAPOL */
+
+ if (bss->caps & IEEE80211_CAP_PRIVACY)
+ return privacy;
+ return !privacy;
+}
+
+
+static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *ssid,
+ struct wpa_scan_res *bss)
+{
+ struct wpa_ie_data ie;
+ int proto_match = 0;
+ const u8 *rsn_ie, *wpa_ie;
+ int ret;
+ int wep_ok;
+
+ ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
+ if (ret >= 0)
+ return ret;
+
+ /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
+ wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
+ (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
+ ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
+ (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
+
+ rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
+ while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
+ proto_match++;
+
+ if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
+ "failed");
+ break;
+ }
+
+ if (wep_ok &&
+ (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
+ {
+ wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
+ "in RSN IE");
+ return 1;
+ }
+
+ if (!(ie.proto & ssid->proto)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
+ "mismatch");
+ break;
+ }
+
+ if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
+ "cipher mismatch");
+ break;
+ }
+
+ if (!(ie.group_cipher & ssid->group_cipher)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
+ "cipher mismatch");
+ break;
+ }
+
+ if (!(ie.key_mgmt & ssid->key_mgmt)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
+ "mismatch");
+ break;
+ }
+
+#ifdef CONFIG_IEEE80211W
+ if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
+ ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
+ "frame protection");
+ break;
+ }
+#endif /* CONFIG_IEEE80211W */
+
+ wpa_dbg(wpa_s, 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_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
+ "failed");
+ break;
+ }
+
+ if (wep_ok &&
+ (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
+ {
+ wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
+ "in WPA IE");
+ return 1;
+ }
+
+ if (!(ie.proto & ssid->proto)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
+ "mismatch");
+ break;
+ }
+
+ if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
+ "cipher mismatch");
+ break;
+ }
+
+ if (!(ie.group_cipher & ssid->group_cipher)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
+ "cipher mismatch");
+ break;
+ }
+
+ if (!(ie.key_mgmt & ssid->key_mgmt)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
+ "mismatch");
+ break;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
+ return 1;
+ }
+
+ if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
+ wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
+ return 0;
+ }
+
+ if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
+ return 1;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
+ "WPA/WPA2");
+
+ return 0;
+}
+
+
+static int freq_allowed(int *freqs, int freq)
+{
+ int i;
+
+ if (freqs == NULL)
+ return 1;
+
+ for (i = 0; freqs[i]; i++)
+ if (freqs[i] == freq)
+ return 1;
+ return 0;
+}
+
+
+static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
+ int i, struct wpa_scan_res *bss,
+ struct wpa_ssid *group)
+{
+ const u8 *ssid_;
+ u8 wpa_ie_len, rsn_ie_len, ssid_len;
+ int wpa;
+ struct wpa_blacklist *e;
+ const u8 *ie;
+ struct wpa_ssid *ssid;
+
+ 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_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
+ "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
+ i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
+ wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
+ wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
+
+ e = wpa_blacklist_get(wpa_s, bss->bssid);
+ if (e) {
+ int limit = 1;
+ if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
+ /*
+ * When only a single network is enabled, we can
+ * trigger blacklisting on the first failure. This
+ * should not be done with multiple enabled networks to
+ * avoid getting forced to move into a worse ESS on
+ * single error if there are no other BSSes of the
+ * current ESS.
+ */
+ limit = 0;
+ }
+ if (e->count > limit) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
+ "(count=%d limit=%d)", e->count, limit);
+ return NULL;
+ }
+ }
+
+ if (ssid_len == 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
+ return NULL;
+ }
+
+ wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
+
+ for (ssid = group; ssid; ssid = ssid->pnext) {
+ int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
+
+ if (ssid->disabled) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
+ continue;
+ }
+
+#ifdef CONFIG_WPS
+ if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
+ "(WPS)");
+ continue;
+ }
+
+ if (wpa && ssid->ssid_len == 0 &&
+ wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
+ check_ssid = 0;
+
+ if (!wpa && (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 &&
+ wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
+ check_ssid = 0;
+ }
+#endif /* CONFIG_WPS */
+
+ if (check_ssid &&
+ (ssid_len != ssid->ssid_len ||
+ os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
+ continue;
+ }
+
+ if (ssid->bssid_set &&
+ os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
+ continue;
+ }
+
+ if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
+ continue;
+
+ if (!wpa &&
+ !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
+ !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
+ !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
+ "not allowed");
+ continue;
+ }
+
+ if (!wpa && !wpa_supplicant_match_privacy(bss, ssid)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
+ "mismatch");
+ continue;
+ }
+
+ if (!wpa && (bss->caps & IEEE80211_CAP_IBSS)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
+ "network");
+ continue;
+ }
+
+ if (!freq_allowed(ssid->freq_list, bss->freq)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
+ "allowed");
+ continue;
+ }
+
+#ifdef CONFIG_P2P
+ /*
+ * TODO: skip the AP if its P2P IE has Group Formation
+ * bit set in the P2P Group Capability Bitmap and we
+ * are not in Group Formation with that device.
+ */
+#endif /* CONFIG_P2P */
+
+ /* Matching configuration found */
+ return ssid;
+ }
+
+ /* No matching configuration found */
+ return NULL;
+}
+
+
+static struct wpa_bss *
+wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res,
+ struct wpa_ssid *group,
+ struct wpa_ssid **selected_ssid)
+{
+ size_t i;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
+ group->priority);
+
+ for (i = 0; i < scan_res->num; i++) {
+ struct wpa_scan_res *bss = scan_res->res[i];
+ const u8 *ie, *ssid;
+ u8 ssid_len;
+
+ *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
+ if (!*selected_ssid)
+ continue;
+
+ ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
+ ssid = ie ? ie + 2 : (u8 *) "";
+ ssid_len = ie ? ie[1] : 0;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
+ " ssid='%s'",
+ MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
+ return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
+ }
+
+ return NULL;
+}
+
+
+static struct wpa_bss *
+wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res,
+ struct wpa_ssid **selected_ssid)
+{
+ struct wpa_bss *selected = NULL;
+ int prio;
+
+ while (selected == NULL) {
+ for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
+ selected = wpa_supplicant_select_bss(
+ wpa_s, scan_res, wpa_s->conf->pssid[prio],
+ selected_ssid);
+ if (selected)
+ break;
+ }
+
+ if (selected == NULL && wpa_s->blacklist) {
+ wpa_dbg(wpa_s, 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_sec, int timeout_usec)
+{
+ 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;
+ }
+ wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
+}
+
+
+void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *selected,
+ 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");
+#ifdef CONFIG_P2P
+ if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
+ return;
+#endif /* CONFIG_P2P */
+
+#ifdef CONFIG_WPS
+ wpas_wps_cancel(wpa_s);
+#endif /* CONFIG_WPS */
+ 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 &&
+ wpa_s->wpa_state != WPA_AUTHENTICATING) ||
+ 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, 0);
+ return;
+ }
+ wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
+ "reassociate: %d selected: "MACSTR " bssid: " MACSTR
+ " pending: " MACSTR " wpa_state: %s",
+ wpa_s->reassociate, MAC2STR(selected->bssid),
+ MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
+ wpa_supplicant_state_txt(wpa_s->wpa_state));
+ wpa_supplicant_associate(wpa_s, selected, ssid);
+ } else {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
+ "selected AP");
+ }
+}
+
+
+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;
+}
+
+
+/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
+ * on BSS added and BSS changed events */
+static void wpa_supplicant_rsn_preauth_scan_results(
+ struct wpa_supplicant *wpa_s, struct wpa_scan_results *scan_res)
+{
+ int i;
+
+ if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
+ return;
+
+ for (i = scan_res->num - 1; i >= 0; i--) {
+ const u8 *ssid, *rsn;
+ struct wpa_scan_res *r;
+
+ r = scan_res->res[i];
+
+ 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);
+ }
+
+}
+
+
+static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *selected,
+ struct wpa_ssid *ssid,
+ struct wpa_scan_results *scan_res)
+{
+ size_t i;
+ struct wpa_scan_res *current_bss = NULL;
+ int min_diff;
+
+ if (wpa_s->reassociate)
+ return 1; /* explicit request to reassociate */
+ if (wpa_s->wpa_state < WPA_ASSOCIATED)
+ return 1; /* we are not associated; continue */
+ if (wpa_s->current_ssid == NULL)
+ return 1; /* unknown current SSID */
+ if (wpa_s->current_ssid != ssid)
+ return 1; /* different network block */
+
+ for (i = 0; i < scan_res->num; i++) {
+ struct wpa_scan_res *res = scan_res->res[i];
+ const u8 *ie;
+ if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
+ continue;
+
+ ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
+ if (ie == NULL)
+ continue;
+ if (ie[1] != wpa_s->current_ssid->ssid_len ||
+ os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
+ continue;
+ current_bss = res;
+ break;
+ }
+
+ if (!current_bss)
+ return 1; /* current BSS not seen in scan results */
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
+ wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
+ MAC2STR(current_bss->bssid), current_bss->level);
+ wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
+ MAC2STR(selected->bssid), selected->level);
+
+ if (wpa_s->current_ssid->bssid_set &&
+ os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
+ 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
+ "has preferred BSSID");
+ return 1;
+ }
+
+ min_diff = 2;
+ if (current_bss->level < 0) {
+ if (current_bss->level < -85)
+ min_diff = 1;
+ else if (current_bss->level < -80)
+ min_diff = 2;
+ else if (current_bss->level < -75)
+ min_diff = 3;
+ else if (current_bss->level < -70)
+ min_diff = 4;
+ else
+ min_diff = 5;
+ }
+ if (abs(current_bss->level - selected->level) < min_diff) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
+ "in signal level");
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Return < 0 if no scan results could be fetched. */
+static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ struct wpa_bss *selected;
+ struct wpa_ssid *ssid = NULL;
+ struct wpa_scan_results *scan_res;
+ int ap = 0;
+
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface)
+ ap = 1;
+#endif /* CONFIG_AP */
+
+ wpa_supplicant_notify_scanning(wpa_s, 0);
+
+ scan_res = wpa_supplicant_get_scan_results(wpa_s,
+ data ? &data->scan_info :
+ NULL, 1);
+ if (scan_res == NULL) {
+ if (wpa_s->conf->ap_scan == 2 || ap)
+ return -1;
+ wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
+ "scanning again");
+ wpa_supplicant_req_new_scan(wpa_s, 1, 0);
+ return -1;
+ }
+
+#ifndef CONFIG_NO_RANDOM_POOL
+ size_t i, num;
+ num = scan_res->num;
+ if (num > 10)
+ num = 10;
+ for (i = 0; i < num; i++) {
+ u8 buf[5];
+ struct wpa_scan_res *res = scan_res->res[i];
+ buf[0] = res->bssid[5];
+ buf[1] = res->qual & 0xff;
+ buf[2] = res->noise & 0xff;
+ buf[3] = res->level & 0xff;
+ buf[4] = res->tsf & 0xff;
+ random_add_randomness(buf, sizeof(buf));
+ }
+#endif /* CONFIG_NO_RANDOM_POOL */
+
+ if (wpa_s->scan_res_handler) {
+ void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res);
+
+ scan_res_handler = wpa_s->scan_res_handler;
+ wpa_s->scan_res_handler = NULL;
+ scan_res_handler(wpa_s, scan_res);
+
+ wpa_scan_results_free(scan_res);
+ return 0;
+ }
+
+ if (ap) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface->scan_cb)
+ wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
+#endif /* CONFIG_AP */
+ wpa_scan_results_free(scan_res);
+ return 0;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
+ wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
+ wpas_notify_scan_results(wpa_s);
+
+ wpas_notify_scan_done(wpa_s, 1);
+
+ if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
+ wpa_scan_results_free(scan_res);
+ return 0;
+ }
+
+ if (wpa_s->disconnected) {
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
+ wpa_scan_results_free(scan_res);
+ return 0;
+ }
+
+ if (bgscan_notify_scan(wpa_s, scan_res) == 1) {
+ wpa_scan_results_free(scan_res);
+ return 0;
+ }
+
+ wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
+
+ selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
+
+ if (selected) {
+ int skip;
+ skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
+ scan_res);
+ wpa_scan_results_free(scan_res);
+ if (skip)
+ return 0;
+ wpa_supplicant_connect(wpa_s, selected, ssid);
+ } else {
+ wpa_scan_results_free(scan_res);
+ wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
+ ssid = wpa_supplicant_pick_new_network(wpa_s);
+ if (ssid) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
+ wpa_supplicant_associate(wpa_s, NULL, ssid);
+ } else {
+ int timeout_sec = wpa_s->scan_interval;
+ int timeout_usec = 0;
+#ifdef CONFIG_P2P
+ if (wpa_s->p2p_in_provisioning) {
+ /*
+ * Use shorter wait during P2P Provisioning
+ * state to speed up group formation.
+ */
+ timeout_sec = 0;
+ timeout_usec = 250000;
+ }
+#endif /* CONFIG_P2P */
+ wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
+ timeout_usec);
+ }
+ }
+ return 0;
+}
+
+
+static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ const char *rn, *rn2;
+ struct wpa_supplicant *ifs;
+
+ if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
+ /*
+ * If no scan results could be fetched, then no need to
+ * notify those interfaces that did not actually request
+ * this scan.
+ */
+ return;
+ }
+
+ /*
+ * Check other interfaces to see if they have the same radio-name. If
+ * so, they get updated with this same scan info.
+ */
+ if (!wpa_s->driver->get_radio_name)
+ return;
+
+ rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
+ if (rn == NULL || rn[0] == '\0')
+ return;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
+ "sharing same radio (%s) in event_scan_results", rn);
+
+ for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
+ if (ifs == wpa_s || !ifs->driver->get_radio_name)
+ continue;
+
+ rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
+ if (rn2 && os_strcmp(rn, rn2) == 0) {
+ wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
+ "sibling", ifs->ifname);
+ _wpa_supplicant_event_scan_results(ifs, data);
+ }
+ }
+}
+
+#endif /* CONFIG_NO_SCAN_PROCESSING */
+
+
+static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ int l, len, found = 0, wpa_found, rsn_found;
+ const u8 *p;
+
+ wpa_dbg(wpa_s, 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);
+#ifdef CONFIG_TDLS
+ wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
+ data->assoc_info.resp_ies_len);
+#endif /* CONFIG_TDLS */
+ }
+ if (data->assoc_info.beacon_ies)
+ wpa_hexdump(MSG_DEBUG, "beacon_ies",
+ data->assoc_info.beacon_ies,
+ data->assoc_info.beacon_ies_len);
+ if (data->assoc_info.freq)
+ wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
+ data->assoc_info.freq);
+
+ 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);
+
+#ifdef CONFIG_IEEE80211R
+#ifdef CONFIG_SME
+ if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
+ u8 bssid[ETH_ALEN];
+ if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
+ wpa_ft_validate_reassoc_resp(wpa_s->wpa,
+ data->assoc_info.resp_ies,
+ data->assoc_info.resp_ies_len,
+ bssid) < 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
+ "Reassociation Response failed");
+ wpa_supplicant_deauthenticate(
+ wpa_s, WLAN_REASON_INVALID_IE);
+ return -1;
+ }
+ }
+
+ p = data->assoc_info.resp_ies;
+ l = data->assoc_info.resp_ies_len;
+
+#ifdef CONFIG_WPS_STRICT
+ if (p && wpa_s->current_ssid &&
+ wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
+ struct wpabuf *wps;
+ wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
+ if (wps == NULL) {
+ wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
+ "include WPS IE in (Re)Association Response");
+ return -1;
+ }
+
+ if (wps_validate_assoc_resp(wps) < 0) {
+ wpabuf_free(wps);
+ wpa_supplicant_deauthenticate(
+ wpa_s, WLAN_REASON_INVALID_IE);
+ return -1;
+ }
+ wpabuf_free(wps);
+ }
+#endif /* CONFIG_WPS_STRICT */
+
+ /* Go through the IEs and make a copy of the MDIE, 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_MOBILITY_DOMAIN &&
+ p[1] >= MOBILITY_DOMAIN_ID_LEN) {
+ wpa_s->sme.ft_used = 1;
+ os_memcpy(wpa_s->sme.mobility_domain, p + 2,
+ MOBILITY_DOMAIN_ID_LEN);
+ break;
+ }
+ l -= len;
+ p += len;
+ }
+#endif /* CONFIG_SME */
+
+ wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
+ data->assoc_info.resp_ies_len);
+#endif /* CONFIG_IEEE80211R */
+
+ /* 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;
+
+ wpa_s->assoc_freq = data->assoc_info.freq;
+
+ return 0;
+}
+
+
+static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ u8 bssid[ETH_ALEN];
+ int ft_completed;
+ int bssid_changed;
+ struct wpa_driver_capa capa;
+
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface) {
+ hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
+ data->assoc_info.addr,
+ data->assoc_info.req_ies,
+ data->assoc_info.req_ies_len,
+ data->assoc_info.reassoc);
+ return;
+ }
+#endif /* CONFIG_AP */
+
+ ft_completed = wpa_ft_is_completed(wpa_s->wpa);
+ if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
+ return;
+
+ wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
+ os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
+ if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
+ (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
+ os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
+ MACSTR, MAC2STR(bssid));
+ random_add_randomness(bssid, ETH_ALEN);
+ bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
+ os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
+ os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
+ if (bssid_changed)
+ wpas_notify_bssid_changed(wpa_s);
+
+ 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;
+ }
+ 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;
+ }
+ }
+
+#ifdef CONFIG_SME
+ os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
+ wpa_s->sme.prev_bssid_set = 1;
+#endif /* CONFIG_SME */
+
+ 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);
+ if (wpa_s->l2)
+ 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);
+ }
+ if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
+ 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 ||
+ wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
+ (wpa_s->current_ssid &&
+ wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
+ 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);
+
+ if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
+ wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
+ /*
+ * 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);
+ } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
+ wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
+ /*
+ * The driver will take care of RSN 4-way handshake, so we need
+ * to allow EAPOL supplicant to complete its work without
+ * waiting for WPA supplicant.
+ */
+ eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
+ } else if (ft_completed) {
+ /*
+ * FT protocol completed - make sure EAPOL state machine ends
+ * up in authenticated.
+ */
+ 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);
+ }
+
+ 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_dbg(wpa_s, 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;
+ }
+
+ 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);
+ }
+
+#ifdef CONFIG_IBSS_RSN
+ if (wpa_s->current_ssid &&
+ wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
+ wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
+ wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
+ wpa_s->ibss_rsn == NULL) {
+ wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
+ if (!wpa_s->ibss_rsn) {
+ wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
+ wpa_supplicant_deauthenticate(
+ wpa_s, WLAN_REASON_DEAUTH_LEAVING);
+ return;
+ }
+
+ ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
+ }
+#endif /* CONFIG_IBSS_RSN */
+}
+
+
+static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
+ u16 reason_code)
+{
+ const u8 *bssid;
+ 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);
+
+ 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_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
+ "IBSS/WPA-None mode");
+ return;
+ }
+
+ if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
+ wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
+ wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
+ "pre-shared key may be incorrect");
+ }
+ if (!wpa_s->auto_reconnect_disabled ||
+ wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect enabled: try to "
+ "reconnect (wps=%d)",
+ wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
+ if (wpa_s->wpa_state >= WPA_ASSOCIATING)
+ wpa_supplicant_req_scan(wpa_s, 0, 100000);
+ } else {
+ wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect disabled: do not "
+ "try to re-connect");
+ wpa_s->reassociate = 0;
+ wpa_s->disconnected = 1;
+ }
+ bssid = wpa_s->bssid;
+ if (is_zero_ether_addr(bssid))
+ bssid = wpa_s->pending_bssid;
+ wpas_connection_failed(wpa_s, bssid);
+ wpa_sm_notify_disassoc(wpa_s->wpa);
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
+ " reason=%d",
+ MAC2STR(bssid), reason_code);
+ if (wpa_supplicant_dynamic_keys(wpa_s)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
+ wpa_s->keys_cleared = 0;
+ wpa_clear_keys(wpa_s, wpa_s->bssid);
+ }
+ wpa_supplicant_mark_disassoc(wpa_s);
+
+ if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
+ sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
+}
+
+
+#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_dbg(wpa_s, 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 */
+
+
+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);
+ 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);
+
+ /* 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.. */
+ } 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_dbg(wpa_s, 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 */
+ }
+ wpa_s->last_michael_mic_error = t.sec;
+ wpa_s->mic_errors_seen++;
+}
+
+
+#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 */
+
+
+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_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
+ if (wpa_supplicant_driver_init(wpa_s) < 0) {
+ wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
+ "driver after interface was added");
+ }
+ break;
+ case EVENT_INTERFACE_REMOVED:
+ wpa_dbg(wpa_s, 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;
+#ifdef CONFIG_IBSS_RSN
+ ibss_rsn_deinit(wpa_s->ibss_rsn);
+ wpa_s->ibss_rsn = NULL;
+#endif /* CONFIG_IBSS_RSN */
+#ifdef CONFIG_TERMINATE_ONLASTIF
+ /* check if last interface */
+ if (!any_interfaces(wpa_s->global->ifaces))
+ eloop_terminate();
+#endif /* CONFIG_TERMINATE_ONLASTIF */
+ 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_TDLS
+static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ if (data == NULL)
+ return;
+ switch (data->tdls.oper) {
+ case TDLS_REQUEST_SETUP:
+ wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
+ break;
+ case TDLS_REQUEST_TEARDOWN:
+ /* request from driver to add FTIE */
+ wpa_tdls_recv_teardown_notify(wpa_s->wpa, data->tdls.peer,
+ data->tdls.reason_code);
+ break;
+ }
+}
+#endif /* CONFIG_TDLS */
+
+
+#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,
+ data->ft_ies.target_ap,
+ data->ft_ies.ric_ies,
+ data->ft_ies.ric_ies_len) < 0) {
+ /* TODO: prevent MLME/driver from trying to associate? */
+ }
+}
+#endif /* CONFIG_IEEE80211R */
+
+
+#ifdef CONFIG_IBSS_RSN
+static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
+ union wpa_event_data *data)
+{
+ struct wpa_ssid *ssid;
+ if (wpa_s->wpa_state < WPA_ASSOCIATED)
+ return;
+ if (data == NULL)
+ return;
+ ssid = wpa_s->current_ssid;
+ if (ssid == NULL)
+ return;
+ if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
+ return;
+
+ ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
+}
+#endif /* CONFIG_IBSS_RSN */
+
+
+#ifdef CONFIG_IEEE80211R
+static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
+ size_t len)
+{
+ const u8 *sta_addr, *target_ap_addr;
+ u16 status;
+
+ wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
+ if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
+ return; /* only SME case supported for now */
+ if (len < 1 + 2 * ETH_ALEN + 2)
+ return;
+ if (data[0] != 2)
+ return; /* Only FT Action Response is supported for now */
+ sta_addr = data + 1;
+ target_ap_addr = data + 1 + ETH_ALEN;
+ status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
+ wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
+ MACSTR " TargetAP " MACSTR " status %u",
+ MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
+
+ if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
+ " in FT Action Response", MAC2STR(sta_addr));
+ return;
+ }
+
+ if (status) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
+ "failure (status code %d)", status);
+ /* TODO: report error to FT code(?) */
+ return;
+ }
+
+ if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
+ len - (1 + 2 * ETH_ALEN + 2), 1,
+ target_ap_addr, NULL, 0) < 0)
+ return;
+
+#ifdef CONFIG_SME
+ {
+ struct wpa_bss *bss;
+ bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
+ if (bss)
+ wpa_s->sme.freq = bss->freq;
+ wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
+ sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
+ WLAN_AUTH_FT);
+ }
+#endif /* CONFIG_SME */
+}
+#endif /* CONFIG_IEEE80211R */
+
+
+static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
+ struct unprot_deauth *e)
+{
+#ifdef CONFIG_IEEE80211W
+ wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
+ "dropped: " MACSTR " -> " MACSTR
+ " (reason code %u)",
+ MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
+ sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
+#endif /* CONFIG_IEEE80211W */
+}
+
+
+static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
+ struct unprot_disassoc *e)
+{
+#ifdef CONFIG_IEEE80211W
+ wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
+ "dropped: " MACSTR " -> " MACSTR
+ " (reason code %u)",
+ MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
+ sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
+#endif /* CONFIG_IEEE80211W */
+}
+
+
+void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
+ union wpa_event_data *data)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ u16 reason_code = 0;
+
+ if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
+ event != EVENT_INTERFACE_ENABLED &&
+ event != EVENT_INTERFACE_STATUS) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Ignore event %d while interface is "
+ "disabled", event);
+ return;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "Event %d received on interface %s",
+ event, wpa_s->ifname);
+
+ switch (event) {
+ case EVENT_AUTH:
+ sme_event_auth(wpa_s, data);
+ break;
+ case EVENT_ASSOC:
+ wpa_supplicant_event_assoc(wpa_s, data);
+ break;
+ case EVENT_DISASSOC:
+ wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
+ if (data) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
+ data->disassoc_info.reason_code);
+ if (data->disassoc_info.addr)
+ wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
+ MAC2STR(data->disassoc_info.addr));
+ }
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
+ hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
+ data->disassoc_info.addr);
+ break;
+ }
+#endif /* CONFIG_AP */
+ if (data) {
+ reason_code = data->disassoc_info.reason_code;
+ wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
+ data->disassoc_info.ie,
+ data->disassoc_info.ie_len);
+#ifdef CONFIG_P2P
+ wpas_p2p_disassoc_notif(
+ wpa_s, data->disassoc_info.addr, reason_code,
+ data->disassoc_info.ie,
+ data->disassoc_info.ie_len);
+#endif /* CONFIG_P2P */
+ }
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
+ sme_event_disassoc(wpa_s, data);
+ /* fall through */
+ case EVENT_DEAUTH:
+ if (event == EVENT_DEAUTH) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "Deauthentication notification");
+ if (data) {
+ reason_code = data->deauth_info.reason_code;
+ wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
+ data->deauth_info.reason_code);
+ if (data->deauth_info.addr) {
+ wpa_dbg(wpa_s, MSG_DEBUG, " * address "
+ MACSTR,
+ MAC2STR(data->deauth_info.
+ addr));
+ }
+ wpa_hexdump(MSG_DEBUG,
+ "Deauthentication frame IE(s)",
+ data->deauth_info.ie,
+ data->deauth_info.ie_len);
+#ifdef CONFIG_P2P
+ wpas_p2p_deauth_notif(
+ wpa_s, data->deauth_info.addr,
+ reason_code,
+ data->deauth_info.ie,
+ data->deauth_info.ie_len);
+#endif /* CONFIG_P2P */
+ }
+ }
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface && data && data->deauth_info.addr) {
+ hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
+ data->deauth_info.addr);
+ break;
+ }
+#endif /* CONFIG_AP */
+ wpa_supplicant_event_disassoc(wpa_s, reason_code);
+ 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:
+ wpa_supplicant_event_scan_results(wpa_s, data);
+ 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_TDLS
+ case EVENT_TDLS:
+ wpa_supplicant_event_tdls(wpa_s, data);
+ break;
+#endif /* CONFIG_TDLS */
+#ifdef CONFIG_IEEE80211R
+ case EVENT_FT_RESPONSE:
+ wpa_supplicant_event_ft_response(wpa_s, data);
+ break;
+#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_IBSS_RSN
+ case EVENT_IBSS_RSN_START:
+ wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
+ break;
+#endif /* CONFIG_IBSS_RSN */
+ case EVENT_ASSOC_REJECT:
+ if (data->assoc_reject.bssid)
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
+ "bssid=" MACSTR " status_code=%u",
+ MAC2STR(data->assoc_reject.bssid),
+ data->assoc_reject.status_code);
+ else
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
+ "status_code=%u",
+ data->assoc_reject.status_code);
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
+ sme_event_assoc_reject(wpa_s, data);
+ break;
+ case EVENT_AUTH_TIMED_OUT:
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
+ sme_event_auth_timed_out(wpa_s, data);
+ break;
+ case EVENT_ASSOC_TIMED_OUT:
+ if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
+ sme_event_assoc_timed_out(wpa_s, data);
+ break;
+#ifdef CONFIG_AP
+ case EVENT_TX_STATUS:
+ wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
+ " type=%d stype=%d",
+ MAC2STR(data->tx_status.dst),
+ data->tx_status.type, data->tx_status.stype);
+ if (wpa_s->ap_iface == NULL) {
+#ifdef CONFIG_P2P
+ if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
+ data->tx_status.stype == WLAN_FC_STYPE_ACTION)
+ wpas_send_action_tx_status(
+ wpa_s, data->tx_status.dst,
+ data->tx_status.data,
+ data->tx_status.data_len,
+ data->tx_status.ack ?
+ P2P_SEND_ACTION_SUCCESS :
+ P2P_SEND_ACTION_NO_ACK);
+#endif /* CONFIG_P2P */
+ break;
+ }
+#ifdef CONFIG_P2P
+ wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
+ MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
+ /*
+ * Catch TX status events for Action frames we sent via group
+ * interface in GO mode.
+ */
+ if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
+ data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
+ os_memcmp(wpa_s->parent->pending_action_dst,
+ data->tx_status.dst, ETH_ALEN) == 0) {
+ wpas_send_action_tx_status(
+ wpa_s->parent, data->tx_status.dst,
+ data->tx_status.data,
+ data->tx_status.data_len,
+ data->tx_status.ack ?
+ P2P_SEND_ACTION_SUCCESS :
+ P2P_SEND_ACTION_NO_ACK);
+ break;
+ }
+#endif /* CONFIG_P2P */
+ 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;
+ ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
+ data->rx_from_unknown.len);
+ break;
+ case EVENT_RX_MGMT:
+ if (wpa_s->ap_iface == NULL) {
+#ifdef CONFIG_P2P
+ u16 fc, stype;
+ const struct ieee80211_mgmt *mgmt;
+ mgmt = (const struct ieee80211_mgmt *)
+ data->rx_mgmt.frame;
+ fc = le_to_host16(mgmt->frame_control);
+ stype = WLAN_FC_GET_STYPE(fc);
+ if (stype == WLAN_FC_STYPE_PROBE_REQ &&
+ data->rx_mgmt.frame_len > 24) {
+ const u8 *src = mgmt->sa;
+ const u8 *ie = mgmt->u.probe_req.variable;
+ size_t ie_len = data->rx_mgmt.frame_len -
+ (mgmt->u.probe_req.variable -
+ data->rx_mgmt.frame);
+ wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len);
+ break;
+ }
+#endif /* CONFIG_P2P */
+ wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
+ "management frame in non-AP mode");
+ break;
+ }
+ ap_mgmt_rx(wpa_s, &data->rx_mgmt);
+ break;
+#endif /* CONFIG_AP */
+ case EVENT_RX_ACTION:
+ wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
+ " Category=%u DataLen=%d freq=%d MHz",
+ MAC2STR(data->rx_action.sa),
+ data->rx_action.category, (int) data->rx_action.len,
+ data->rx_action.freq);
+#ifdef CONFIG_IEEE80211R
+ if (data->rx_action.category == WLAN_ACTION_FT) {
+ ft_rx_action(wpa_s, data->rx_action.data,
+ data->rx_action.len);
+ break;
+ }
+#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_IEEE80211W
+#ifdef CONFIG_SME
+ if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
+ sme_sa_query_rx(wpa_s, data->rx_action.sa,
+ data->rx_action.data,
+ data->rx_action.len);
+ break;
+ }
+#endif /* CONFIG_SME */
+#endif /* CONFIG_IEEE80211W */
+#ifdef CONFIG_P2P
+ wpas_p2p_rx_action(wpa_s, data->rx_action.da,
+ data->rx_action.sa,
+ data->rx_action.bssid,
+ data->rx_action.category,
+ data->rx_action.data,
+ data->rx_action.len, data->rx_action.freq);
+#endif /* CONFIG_P2P */
+ break;
+ case EVENT_RX_PROBE_REQ:
+ if (data->rx_probe_req.sa == NULL ||
+ data->rx_probe_req.ie == NULL)
+ break;
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface) {
+ hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
+ data->rx_probe_req.sa,
+ data->rx_probe_req.ie,
+ data->rx_probe_req.ie_len);
+ break;
+ }
+#endif /* CONFIG_AP */
+#ifdef CONFIG_P2P
+ wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
+ data->rx_probe_req.ie,
+ data->rx_probe_req.ie_len);
+#endif /* CONFIG_P2P */
+ break;
+#ifdef CONFIG_P2P
+ case EVENT_REMAIN_ON_CHANNEL:
+ wpas_p2p_remain_on_channel_cb(
+ wpa_s, data->remain_on_channel.freq,
+ data->remain_on_channel.duration);
+ break;
+ case EVENT_CANCEL_REMAIN_ON_CHANNEL:
+ wpas_p2p_cancel_remain_on_channel_cb(
+ wpa_s, data->remain_on_channel.freq);
+ break;
+ case EVENT_P2P_DEV_FOUND: {
+ struct p2p_peer_info peer_info;
+
+ os_memset(&peer_info, 0, sizeof(peer_info));
+ if (data->p2p_dev_found.dev_addr)
+ os_memcpy(peer_info.p2p_device_addr,
+ data->p2p_dev_found.dev_addr, ETH_ALEN);
+ if (data->p2p_dev_found.pri_dev_type)
+ os_memcpy(peer_info.pri_dev_type,
+ data->p2p_dev_found.pri_dev_type,
+ sizeof(peer_info.pri_dev_type));
+ if (data->p2p_dev_found.dev_name)
+ os_strlcpy(peer_info.device_name,
+ data->p2p_dev_found.dev_name,
+ sizeof(peer_info.device_name));
+ peer_info.config_methods = data->p2p_dev_found.config_methods;
+ peer_info.dev_capab = data->p2p_dev_found.dev_capab;
+ peer_info.group_capab = data->p2p_dev_found.group_capab;
+
+ /*
+ * FIX: new_device=1 is not necessarily correct. We should
+ * maintain a P2P peer database in wpa_supplicant and update
+ * this information based on whether the peer is truly new.
+ */
+ wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
+ break;
+ }
+ case EVENT_P2P_GO_NEG_REQ_RX:
+ wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
+ data->p2p_go_neg_req_rx.dev_passwd_id);
+ break;
+ case EVENT_P2P_GO_NEG_COMPLETED:
+ wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
+ break;
+ case EVENT_P2P_PROV_DISC_REQUEST:
+ wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
+ data->p2p_prov_disc_req.config_methods,
+ data->p2p_prov_disc_req.dev_addr,
+ data->p2p_prov_disc_req.pri_dev_type,
+ data->p2p_prov_disc_req.dev_name,
+ data->p2p_prov_disc_req.supp_config_methods,
+ data->p2p_prov_disc_req.dev_capab,
+ data->p2p_prov_disc_req.group_capab);
+ break;
+ case EVENT_P2P_PROV_DISC_RESPONSE:
+ wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
+ data->p2p_prov_disc_resp.config_methods);
+ break;
+ case EVENT_P2P_SD_REQUEST:
+ wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
+ data->p2p_sd_req.sa,
+ data->p2p_sd_req.dialog_token,
+ data->p2p_sd_req.update_indic,
+ data->p2p_sd_req.tlvs,
+ data->p2p_sd_req.tlvs_len);
+ break;
+ case EVENT_P2P_SD_RESPONSE:
+ wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
+ data->p2p_sd_resp.update_indic,
+ data->p2p_sd_resp.tlvs,
+ data->p2p_sd_resp.tlvs_len);
+ break;
+#endif /* CONFIG_P2P */
+#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 */
+ case EVENT_EAPOL_RX:
+ wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
+ data->eapol_rx.data,
+ data->eapol_rx.data_len);
+ break;
+ case EVENT_SIGNAL_CHANGE:
+ bgscan_notify_signal_change(
+ wpa_s, data->signal_change.above_threshold,
+ data->signal_change.current_signal,
+ data->signal_change.current_noise,
+ data->signal_change.current_txrate);
+ break;
+ case EVENT_INTERFACE_ENABLED:
+ wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
+ if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
+#ifdef CONFIG_AP
+ if (!wpa_s->ap_iface) {
+ wpa_supplicant_set_state(wpa_s,
+ WPA_DISCONNECTED);
+ wpa_supplicant_req_scan(wpa_s, 0, 0);
+ } else
+ wpa_supplicant_set_state(wpa_s,
+ WPA_COMPLETED);
+#else /* CONFIG_AP */
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
+ wpa_supplicant_req_scan(wpa_s, 0, 0);
+#endif /* CONFIG_AP */
+ }
+ break;
+ case EVENT_INTERFACE_DISABLED:
+ wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
+ wpa_supplicant_mark_disassoc(wpa_s);
+ wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
+ break;
+ case EVENT_CHANNEL_LIST_CHANGED:
+ if (wpa_s->drv_priv == NULL)
+ break; /* Ignore event during drv initialization */
+#ifdef CONFIG_P2P
+ wpas_p2p_update_channel_list(wpa_s);
+#endif /* CONFIG_P2P */
+ break;
+ case EVENT_INTERFACE_UNAVAILABLE:
+#ifdef CONFIG_P2P
+ wpas_p2p_interface_unavailable(wpa_s);
+#endif /* CONFIG_P2P */
+ break;
+ case EVENT_BEST_CHANNEL:
+ wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
+ "(%d %d %d)",
+ data->best_chan.freq_24, data->best_chan.freq_5,
+ data->best_chan.freq_overall);
+ wpa_s->best_24_freq = data->best_chan.freq_24;
+ wpa_s->best_5_freq = data->best_chan.freq_5;
+ wpa_s->best_overall_freq = data->best_chan.freq_overall;
+#ifdef CONFIG_P2P
+ wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
+ data->best_chan.freq_5,
+ data->best_chan.freq_overall);
+#endif /* CONFIG_P2P */
+ break;
+ case EVENT_UNPROT_DEAUTH:
+ wpa_supplicant_event_unprot_deauth(wpa_s,
+ &data->unprot_deauth);
+ break;
+ case EVENT_UNPROT_DISASSOC:
+ wpa_supplicant_event_unprot_disassoc(wpa_s,
+ &data->unprot_disassoc);
+ break;
+ case EVENT_STATION_LOW_ACK:
+#ifdef CONFIG_AP
+ if (wpa_s->ap_iface && data)
+ hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
+ data->low_ack.addr);
+#endif /* CONFIG_AP */
+ break;
+ case EVENT_IBSS_PEER_LOST:
+#ifdef CONFIG_IBSS_RSN
+ ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
+#endif /* CONFIG_IBSS_RSN */
+ break;
+ default:
+ wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
+ break;
+ }
+}