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- /*
- * WPA Supplicant - Driver event processing
- * Copyright (c) 2003-2017, Jouni Malinen <j@w1.fi>
- *
- * This software may be distributed under the terms of the BSD license.
- * See README 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 "fst/fst.h"
- #include "wnm_sta.h"
- #include "notify.h"
- #include "common/ieee802_11_defs.h"
- #include "common/ieee802_11_common.h"
- #include "common/gas_server.h"
- #include "crypto/random.h"
- #include "blacklist.h"
- #include "wpas_glue.h"
- #include "wps_supplicant.h"
- #include "ibss_rsn.h"
- #include "sme.h"
- #include "gas_query.h"
- #include "p2p_supplicant.h"
- #include "bgscan.h"
- #include "autoscan.h"
- #include "ap.h"
- #include "bss.h"
- #include "scan.h"
- #include "offchannel.h"
- #include "interworking.h"
- #include "mesh.h"
- #include "mesh_mpm.h"
- #include "wmm_ac.h"
- #include "dpp_supplicant.h"
- #ifndef CONFIG_NO_SCAN_PROCESSING
- static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
- int new_scan, int own_request);
- #endif /* CONFIG_NO_SCAN_PROCESSING */
- int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
- {
- struct os_reltime now;
- if (ssid == NULL || ssid->disabled_until.sec == 0)
- return 0;
- os_get_reltime(&now);
- if (ssid->disabled_until.sec > now.sec)
- return ssid->disabled_until.sec - now.sec;
- wpas_clear_temp_disabled(wpa_s, ssid, 0);
- return 0;
- }
- #ifndef CONFIG_NO_SCAN_PROCESSING
- /**
- * wpas_reenabled_network_time - Time until first network is re-enabled
- * @wpa_s: Pointer to wpa_supplicant data
- * Returns: If all enabled networks are temporarily disabled, returns the time
- * (in sec) until the first network is re-enabled. Otherwise returns 0.
- *
- * This function is used in case all enabled networks are temporarily disabled,
- * in which case it returns the time (in sec) that the first network will be
- * re-enabled. The function assumes that at least one network is enabled.
- */
- static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
- {
- struct wpa_ssid *ssid;
- int disabled_for, res = 0;
- #ifdef CONFIG_INTERWORKING
- if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
- wpa_s->conf->cred)
- return 0;
- #endif /* CONFIG_INTERWORKING */
- for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
- if (ssid->disabled)
- continue;
- disabled_for = wpas_temp_disabled(wpa_s, ssid);
- if (!disabled_for)
- return 0;
- if (!res || disabled_for < res)
- res = disabled_for;
- }
- return res;
- }
- #endif /* CONFIG_NO_SCAN_PROCESSING */
- void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
- {
- struct wpa_supplicant *wpa_s = eloop_ctx;
- if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
- return;
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Try to associate due to network getting re-enabled");
- if (wpa_supplicant_fast_associate(wpa_s) != 1) {
- wpa_supplicant_cancel_sched_scan(wpa_s);
- wpa_supplicant_req_scan(wpa_s, 0, 0);
- }
- }
- static struct wpa_bss * wpa_supplicant_get_new_bss(
- struct wpa_supplicant *wpa_s, const u8 *bssid)
- {
- 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);
- return bss;
- }
- static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
- {
- struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
- if (!bss) {
- wpa_supplicant_update_scan_results(wpa_s);
- /* Get the BSS from the new scan results */
- bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
- }
- if (bss)
- wpa_s->current_bss = bss;
- }
- static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
- {
- struct wpa_ssid *ssid, *old_ssid;
- u8 drv_ssid[SSID_MAX_LEN];
- size_t drv_ssid_len;
- int res;
- if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
- wpa_supplicant_update_current_bss(wpa_s);
- if (wpa_s->current_ssid->ssid_len == 0)
- return 0; /* current profile still in use */
- res = wpa_drv_get_ssid(wpa_s, drv_ssid);
- if (res < 0) {
- wpa_msg(wpa_s, MSG_INFO,
- "Failed to read SSID from driver");
- return 0; /* try to use current profile */
- }
- drv_ssid_len = res;
- if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
- os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
- drv_ssid_len) == 0)
- return 0; /* current profile still in use */
- wpa_msg(wpa_s, MSG_DEBUG,
- "Driver-initiated BSS selection changed the SSID to %s",
- wpa_ssid_txt(drv_ssid, drv_ssid_len));
- /* continue selecting a new network profile */
- }
- 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 (wpas_network_disabled(wpa_s, ssid)) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
- return -1;
- }
- if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
- disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
- return -1;
- }
- res = wpas_temp_disabled(wpa_s, ssid);
- if (res > 0) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
- "disabled for %d second(s)", res);
- return -1;
- }
- wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
- "current AP");
- if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
- u8 wpa_ie[80];
- size_t wpa_ie_len = sizeof(wpa_ie);
- if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
- wpa_ie, &wpa_ie_len) < 0)
- wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
- } 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_update_current_bss(wpa_s);
- 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;
- }
- 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");
- /*
- * It is possible that the device is sched scanning, which means
- * that a connection attempt will be done only when we receive
- * scan results. However, in this case, it would be preferable
- * to scan and connect immediately, so cancel the sched_scan and
- * issue a regular scan flow.
- */
- wpa_supplicant_cancel_sched_scan(wpa_s);
- wpa_supplicant_req_scan(wpa_s, 0, 0);
- }
- }
- void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
- {
- int bssid_changed;
- wnm_bss_keep_alive_deinit(wpa_s);
- #ifdef CONFIG_IBSS_RSN
- ibss_rsn_deinit(wpa_s->ibss_rsn);
- wpa_s->ibss_rsn = NULL;
- #endif /* CONFIG_IBSS_RSN */
- #ifdef CONFIG_AP
- wpa_supplicant_ap_deinit(wpa_s);
- #endif /* CONFIG_AP */
- #ifdef CONFIG_HS20
- /* Clear possibly configured frame filters */
- wpa_drv_configure_frame_filters(wpa_s, 0);
- #endif /* CONFIG_HS20 */
- 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);
- sme_clear_on_disassoc(wpa_s);
- 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) ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)
- eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
- wpa_s->ap_ies_from_associnfo = 0;
- wpa_s->current_ssid = NULL;
- eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
- wpa_s->key_mgmt = 0;
- wpas_rrm_reset(wpa_s);
- wpa_s->wnmsleep_used = 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, NULL);
- if (pmksa_set == 0) {
- eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
- 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
- #ifdef PCSC_FUNCS
- int aka = 0, sim = 0;
- if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
- wpa_s->scard != NULL || wpa_s->conf->external_sim)
- return 0;
- if (ssid == NULL || 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 ||
- eap->method == EAP_TYPE_AKA_PRIME)
- 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 &&
- eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
- 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);
- wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
- 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 /* PCSC_FUNCS */
- #endif /* IEEE8021X_EAPOL */
- return 0;
- }
- #ifndef CONFIG_NO_SCAN_PROCESSING
- static int has_wep_key(struct wpa_ssid *ssid)
- {
- int i;
- for (i = 0; i < NUM_WEP_KEYS; i++) {
- if (ssid->wep_key_len[i])
- return 1;
- }
- return 0;
- }
- static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
- struct wpa_ssid *ssid)
- {
- int privacy = 0;
- if (ssid->mixed_cell)
- return 1;
- #ifdef CONFIG_WPS
- if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
- return 1;
- #endif /* CONFIG_WPS */
- if (has_wep_key(ssid))
- privacy = 1;
- #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 (wpa_key_mgmt_wpa(ssid->key_mgmt))
- privacy = 1;
- if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
- privacy = 1;
- 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_bss *bss, int debug_print)
- {
- 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_bss_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)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - parse failed");
- break;
- }
- if (wep_ok &&
- (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
- {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " selected based on TSN in RSN IE");
- return 1;
- }
- if (!(ie.proto & ssid->proto)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - proto mismatch");
- break;
- }
- if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - PTK cipher mismatch");
- break;
- }
- if (!(ie.group_cipher & ssid->group_cipher)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - GTK cipher mismatch");
- break;
- }
- if (!(ie.key_mgmt & ssid->key_mgmt)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - key mgmt mismatch");
- break;
- }
- #ifdef CONFIG_IEEE80211W
- if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
- wpas_get_ssid_pmf(wpa_s, ssid) ==
- MGMT_FRAME_PROTECTION_REQUIRED) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - no mgmt frame protection");
- break;
- }
- #endif /* CONFIG_IEEE80211W */
- if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
- wpas_get_ssid_pmf(wpa_s, ssid) ==
- NO_MGMT_FRAME_PROTECTION) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - no mgmt frame protection enabled but AP requires it");
- break;
- }
- #ifdef CONFIG_MBO
- if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
- wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
- wpas_get_ssid_pmf(wpa_s, ssid) !=
- NO_MGMT_FRAME_PROTECTION) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip RSN IE - no mgmt frame protection enabled on MBO AP");
- break;
- }
- #endif /* CONFIG_MBO */
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " selected based on RSN IE");
- return 1;
- }
- #ifdef CONFIG_IEEE80211W
- if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - MFP Required but network not MFP Capable");
- return 0;
- }
- #endif /* CONFIG_IEEE80211W */
- wpa_ie = wpa_bss_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)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip WPA IE - parse failed");
- break;
- }
- if (wep_ok &&
- (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
- {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " selected based on TSN in WPA IE");
- return 1;
- }
- if (!(ie.proto & ssid->proto)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip WPA IE - proto mismatch");
- break;
- }
- if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip WPA IE - PTK cipher mismatch");
- break;
- }
- if (!(ie.group_cipher & ssid->group_cipher)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip WPA IE - GTK cipher mismatch");
- break;
- }
- if (!(ie.key_mgmt & ssid->key_mgmt)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip WPA IE - key mgmt mismatch");
- break;
- }
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " selected based on WPA IE");
- return 1;
- }
- if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
- !rsn_ie) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " allow for non-WPA IEEE 802.1X");
- return 1;
- }
- if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
- wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - no WPA/RSN proto match");
- return 0;
- }
- if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
- wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
- return 1;
- }
- if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
- return 1;
- }
- if (debug_print)
- 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 int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
- int debug_print)
- {
- const struct hostapd_hw_modes *mode = NULL, *modes;
- const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
- const u8 *rate_ie;
- int i, j, k;
- if (bss->freq == 0)
- return 1; /* Cannot do matching without knowing band */
- modes = wpa_s->hw.modes;
- if (modes == NULL) {
- /*
- * The driver does not provide any additional information
- * about the utilized hardware, so allow the connection attempt
- * to continue.
- */
- return 1;
- }
- for (i = 0; i < wpa_s->hw.num_modes; i++) {
- for (j = 0; j < modes[i].num_channels; j++) {
- int freq = modes[i].channels[j].freq;
- if (freq == bss->freq) {
- if (mode &&
- mode->mode == HOSTAPD_MODE_IEEE80211G)
- break; /* do not allow 802.11b replace
- * 802.11g */
- mode = &modes[i];
- break;
- }
- }
- }
- if (mode == NULL)
- return 0;
- for (i = 0; i < (int) sizeof(scan_ie); i++) {
- rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
- if (rate_ie == NULL)
- continue;
- for (j = 2; j < rate_ie[1] + 2; j++) {
- int flagged = !!(rate_ie[j] & 0x80);
- int r = (rate_ie[j] & 0x7f) * 5;
- /*
- * IEEE Std 802.11n-2009 7.3.2.2:
- * The new BSS Membership selector value is encoded
- * like a legacy basic rate, but it is not a rate and
- * only indicates if the BSS members are required to
- * support the mandatory features of Clause 20 [HT PHY]
- * in order to join the BSS.
- */
- if (flagged && ((rate_ie[j] & 0x7f) ==
- BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
- if (!ht_supported(mode)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " hardware does not support HT PHY");
- return 0;
- }
- continue;
- }
- /* There's also a VHT selector for 802.11ac */
- if (flagged && ((rate_ie[j] & 0x7f) ==
- BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
- if (!vht_supported(mode)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " hardware does not support VHT PHY");
- return 0;
- }
- continue;
- }
- if (!flagged)
- continue;
- /* check for legacy basic rates */
- for (k = 0; k < mode->num_rates; k++) {
- if (mode->rates[k] == r)
- break;
- }
- if (k == mode->num_rates) {
- /*
- * IEEE Std 802.11-2007 7.3.2.2 demands that in
- * order to join a BSS all required rates
- * have to be supported by the hardware.
- */
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
- r / 10, r % 10,
- bss->freq, mode->mode, mode->num_rates);
- return 0;
- }
- }
- }
- return 1;
- }
- /*
- * Test whether BSS is in an ESS.
- * This is done differently in DMG (60 GHz) and non-DMG bands
- */
- static int bss_is_ess(struct wpa_bss *bss)
- {
- if (bss_is_dmg(bss)) {
- return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
- IEEE80211_CAP_DMG_AP;
- }
- return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
- IEEE80211_CAP_ESS);
- }
- static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
- {
- size_t i;
- for (i = 0; i < ETH_ALEN; i++) {
- if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
- return 0;
- }
- return 1;
- }
- static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
- {
- size_t i;
- for (i = 0; i < num; i++) {
- const u8 *a = list + i * ETH_ALEN * 2;
- const u8 *m = a + ETH_ALEN;
- if (match_mac_mask(a, addr, m))
- return 1;
- }
- return 0;
- }
- struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
- int i, struct wpa_bss *bss,
- struct wpa_ssid *group,
- int only_first_ssid, int debug_print)
- {
- u8 wpa_ie_len, rsn_ie_len;
- int wpa;
- struct wpa_blacklist *e;
- const u8 *ie;
- struct wpa_ssid *ssid;
- int osen;
- #ifdef CONFIG_MBO
- const u8 *assoc_disallow;
- #endif /* CONFIG_MBO */
- ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
- wpa_ie_len = ie ? ie[1] : 0;
- ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
- rsn_ie_len = ie ? ie[1] : 0;
- ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
- osen = ie != NULL;
- if (debug_print) {
- wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
- " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
- i, MAC2STR(bss->bssid),
- wpa_ssid_txt(bss->ssid, bss->ssid_len),
- wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
- bss->freq,
- wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
- " wps" : "",
- (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
- wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
- ? " p2p" : "",
- osen ? " osen=1" : "");
- }
- e = wpa_blacklist_get(wpa_s, bss->bssid);
- if (e) {
- int limit = 1;
- if (wpa_supplicant_enabled_networks(wpa_s) == 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) {
- if (debug_print) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - blacklisted (count=%d limit=%d)",
- e->count, limit);
- }
- return NULL;
- }
- }
- if (bss->ssid_len == 0) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
- return NULL;
- }
- if (disallowed_bssid(wpa_s, bss->bssid)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
- return NULL;
- }
- if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
- return NULL;
- }
- wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
- for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
- int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
- int res;
- if (wpas_network_disabled(wpa_s, ssid)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
- continue;
- }
- res = wpas_temp_disabled(wpa_s, ssid);
- if (res > 0) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - disabled temporarily for %d second(s)",
- res);
- continue;
- }
- #ifdef CONFIG_WPS
- if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
- if (debug_print)
- 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 (ssid->bssid_set && ssid->ssid_len == 0 &&
- os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
- check_ssid = 0;
- if (check_ssid &&
- (bss->ssid_len != ssid->ssid_len ||
- os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - SSID mismatch");
- continue;
- }
- if (ssid->bssid_set &&
- os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - BSSID mismatch");
- continue;
- }
- /* check blacklist */
- if (ssid->num_bssid_blacklist &&
- addr_in_list(bss->bssid, ssid->bssid_blacklist,
- ssid->num_bssid_blacklist)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - BSSID blacklisted");
- continue;
- }
- /* if there is a whitelist, only accept those APs */
- if (ssid->num_bssid_whitelist &&
- !addr_in_list(bss->bssid, ssid->bssid_whitelist,
- ssid->num_bssid_whitelist)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - BSSID not in whitelist");
- continue;
- }
- if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss,
- debug_print))
- continue;
- if (!osen && !wpa &&
- !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
- !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
- !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - non-WPA network not allowed");
- continue;
- }
- if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
- has_wep_key(ssid)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - ignore WPA/WPA2 AP for WEP network block");
- continue;
- }
- if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - non-OSEN network not allowed");
- continue;
- }
- if (!wpa_supplicant_match_privacy(bss, ssid)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - privacy mismatch");
- continue;
- }
- if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) &&
- !bss_is_pbss(bss)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - not ESS, PBSS, or MBSS");
- continue;
- }
- if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - PBSS mismatch (ssid %d bss %d)",
- ssid->pbss, bss_is_pbss(bss));
- continue;
- }
- if (!freq_allowed(ssid->freq_list, bss->freq)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - frequency not allowed");
- continue;
- }
- #ifdef CONFIG_MESH
- if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 &&
- ssid->frequency != bss->freq) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - frequency not allowed (mesh)");
- continue;
- }
- #endif /* CONFIG_MESH */
- if (!rate_match(wpa_s, bss, debug_print)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - rate sets do not match");
- continue;
- }
- #ifndef CONFIG_IBSS_RSN
- if (ssid->mode == WPAS_MODE_IBSS &&
- !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
- WPA_KEY_MGMT_WPA_NONE))) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - IBSS RSN not supported in the build");
- continue;
- }
- #endif /* !CONFIG_IBSS_RSN */
- #ifdef CONFIG_P2P
- if (ssid->p2p_group &&
- !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
- !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - no P2P IE seen");
- continue;
- }
- if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
- struct wpabuf *p2p_ie;
- u8 dev_addr[ETH_ALEN];
- ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
- if (ie == NULL) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - no P2P element");
- continue;
- }
- p2p_ie = wpa_bss_get_vendor_ie_multi(
- bss, P2P_IE_VENDOR_TYPE);
- if (p2p_ie == NULL) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - could not fetch P2P element");
- continue;
- }
- if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
- || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
- ETH_ALEN) != 0) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - no matching GO P2P Device Address in P2P element");
- wpabuf_free(p2p_ie);
- continue;
- }
- wpabuf_free(p2p_ie);
- }
- /*
- * 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 */
- if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
- {
- struct os_reltime diff;
- os_reltime_sub(&wpa_s->scan_min_time,
- &bss->last_update, &diff);
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - scan result not recent enough (%u.%06u seconds too old)",
- (unsigned int) diff.sec,
- (unsigned int) diff.usec);
- continue;
- }
- #ifdef CONFIG_MBO
- #ifdef CONFIG_TESTING_OPTIONS
- if (wpa_s->ignore_assoc_disallow)
- goto skip_assoc_disallow;
- #endif /* CONFIG_TESTING_OPTIONS */
- assoc_disallow = wpas_mbo_get_bss_attr(
- bss, MBO_ATTR_ID_ASSOC_DISALLOW);
- if (assoc_disallow && assoc_disallow[1] >= 1) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - MBO association disallowed (reason %u)",
- assoc_disallow[2]);
- continue;
- }
- if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - MBO retry delay has not passed yet");
- continue;
- }
- #ifdef CONFIG_TESTING_OPTIONS
- skip_assoc_disallow:
- #endif /* CONFIG_TESTING_OPTIONS */
- #endif /* CONFIG_MBO */
- #ifdef CONFIG_DPP
- if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
- !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
- (!ssid->dpp_connector ||
- !ssid->dpp_netaccesskey ||
- !ssid->dpp_csign)) {
- if (debug_print)
- wpa_dbg(wpa_s, MSG_DEBUG,
- " skip - no PMKSA entry for DPP");
- continue;
- }
- #endif /* CONFIG_DPP */
- /* 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_ssid *group,
- struct wpa_ssid **selected_ssid,
- int only_first_ssid)
- {
- unsigned int i;
- if (wpa_s->current_ssid) {
- struct wpa_ssid *ssid;
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Scan results matching the currently selected network");
- for (i = 0; i < wpa_s->last_scan_res_used; i++) {
- struct wpa_bss *bss = wpa_s->last_scan_res[i];
- ssid = wpa_scan_res_match(wpa_s, i, bss, group,
- only_first_ssid, 0);
- if (ssid != wpa_s->current_ssid)
- continue;
- wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
- " freq=%d level=%d snr=%d est_throughput=%u",
- i, MAC2STR(bss->bssid), bss->freq, bss->level,
- bss->snr, bss->est_throughput);
- }
- }
- if (only_first_ssid)
- wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
- group->id);
- else
- wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
- group->priority);
- for (i = 0; i < wpa_s->last_scan_res_used; i++) {
- struct wpa_bss *bss = wpa_s->last_scan_res[i];
- *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
- only_first_ssid, 1);
- if (!*selected_ssid)
- continue;
- wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
- " ssid='%s'",
- MAC2STR(bss->bssid),
- wpa_ssid_txt(bss->ssid, bss->ssid_len));
- return bss;
- }
- return NULL;
- }
- struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
- struct wpa_ssid **selected_ssid)
- {
- struct wpa_bss *selected = NULL;
- int prio;
- struct wpa_ssid *next_ssid = NULL;
- struct wpa_ssid *ssid;
- if (wpa_s->last_scan_res == NULL ||
- wpa_s->last_scan_res_used == 0)
- return NULL; /* no scan results from last update */
- if (wpa_s->next_ssid) {
- /* check that next_ssid is still valid */
- for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
- if (ssid == wpa_s->next_ssid)
- break;
- }
- next_ssid = ssid;
- wpa_s->next_ssid = NULL;
- }
- while (selected == NULL) {
- for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
- if (next_ssid && next_ssid->priority ==
- wpa_s->conf->pssid[prio]->priority) {
- selected = wpa_supplicant_select_bss(
- wpa_s, next_ssid, selected_ssid, 1);
- if (selected)
- break;
- }
- selected = wpa_supplicant_select_bss(
- wpa_s, wpa_s->conf->pssid[prio],
- selected_ssid, 0);
- if (selected)
- break;
- }
- if (selected == NULL && wpa_s->blacklist &&
- !wpa_s->countermeasures) {
- 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;
- }
- ssid = *selected_ssid;
- if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
- !ssid->passphrase && !ssid->ext_psk) {
- const char *field_name, *txt = NULL;
- wpa_dbg(wpa_s, MSG_DEBUG,
- "PSK/passphrase not yet available for the selected network");
- wpas_notify_network_request(wpa_s, ssid,
- WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
- field_name = wpa_supplicant_ctrl_req_to_string(
- WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
- if (field_name == NULL)
- return NULL;
- wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
- selected = NULL;
- }
- 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)) {
- /*
- * No networks are enabled; short-circuit request so
- * we don't wait timeout seconds before transitioning
- * to INACTIVE state.
- */
- wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
- "since there are no enabled networks");
- wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
- return;
- }
- wpa_s->scan_for_connection = 1;
- wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
- }
- int 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");
- wpas_notify_wps_event_pbc_overlap(wpa_s);
- #ifdef CONFIG_P2P
- if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
- wpa_s->p2p_in_provisioning) {
- eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
- wpa_s, NULL);
- return -1;
- }
- #endif /* CONFIG_P2P */
- #ifdef CONFIG_WPS
- wpas_wps_pbc_overlap(wpa_s);
- wpas_wps_cancel(wpa_s);
- #endif /* CONFIG_WPS */
- return -1;
- }
- wpa_msg(wpa_s, MSG_DEBUG,
- "Considering connect request: reassociate: %d selected: "
- MACSTR " bssid: " MACSTR " pending: " MACSTR
- " wpa_state: %s ssid=%p current_ssid=%p",
- wpa_s->reassociate, MAC2STR(selected->bssid),
- MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
- wpa_supplicant_state_txt(wpa_s->wpa_state),
- ssid, wpa_s->current_ssid);
- /*
- * 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) ||
- (!is_zero_ether_addr(wpa_s->pending_bssid) &&
- os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
- 0) ||
- (is_zero_ether_addr(wpa_s->pending_bssid) &&
- ssid != wpa_s->current_ssid)))) {
- if (wpa_supplicant_scard_init(wpa_s, ssid)) {
- wpa_supplicant_req_new_scan(wpa_s, 10, 0);
- return 0;
- }
- wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
- MAC2STR(selected->bssid));
- wpa_supplicant_associate(wpa_s, selected, ssid);
- } else {
- wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
- "connect with the selected AP");
- }
- return 0;
- }
- 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 (wpas_network_disabled(wpa_s, ssid))
- continue;
- #ifndef CONFIG_IBSS_RSN
- if (ssid->mode == WPAS_MODE_IBSS &&
- !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
- WPA_KEY_MGMT_WPA_NONE))) {
- wpa_msg(wpa_s, MSG_INFO,
- "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
- wpa_ssid_txt(ssid->ssid,
- ssid->ssid_len));
- continue;
- }
- #endif /* !CONFIG_IBSS_RSN */
- if (ssid->mode == IEEE80211_MODE_IBSS ||
- ssid->mode == IEEE80211_MODE_AP ||
- ssid->mode == IEEE80211_MODE_MESH)
- 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_bss *bss;
- if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
- return;
- dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
- const u8 *ssid, *rsn;
- ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
- if (ssid == NULL)
- continue;
- rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
- if (rsn == NULL)
- continue;
- rsn_preauth_scan_result(wpa_s->wpa, bss->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_bss *current_bss = NULL;
- #ifndef CONFIG_NO_ROAMING
- int min_diff, diff;
- int to_5ghz;
- int cur_est, sel_est;
- #endif /* CONFIG_NO_ROAMING */
- 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 */
- if (wpas_driver_bss_selection(wpa_s))
- return 0; /* Driver-based roaming */
- if (wpa_s->current_ssid->ssid)
- current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
- wpa_s->current_ssid->ssid,
- wpa_s->current_ssid->ssid_len);
- if (!current_bss)
- current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
- if (!current_bss)
- return 1; /* current BSS not seen in scan results */
- if (current_bss == selected)
- return 0;
- if (selected->last_update_idx > current_bss->last_update_idx)
- return 1; /* current BSS not seen in the last scan */
- #ifndef CONFIG_NO_ROAMING
- wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
- wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
- " freq=%d level=%d snr=%d est_throughput=%u",
- MAC2STR(current_bss->bssid),
- current_bss->freq, current_bss->level,
- current_bss->snr, current_bss->est_throughput);
- wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
- " freq=%d level=%d snr=%d est_throughput=%u",
- MAC2STR(selected->bssid), selected->freq, selected->level,
- selected->snr, selected->est_throughput);
- 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;
- }
- if (selected->est_throughput > current_bss->est_throughput + 5000) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Allow reassociation - selected BSS has better estimated throughput");
- return 1;
- }
- to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
- if (current_bss->level < 0 &&
- current_bss->level > selected->level + to_5ghz * 2) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
- "signal level");
- return 0;
- }
- if (current_bss->est_throughput > selected->est_throughput + 5000) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Skip roam - Current BSS has better estimated throughput");
- return 0;
- }
- cur_est = current_bss->est_throughput;
- sel_est = selected->est_throughput;
- 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 (cur_est > sel_est * 1.5)
- min_diff += 10;
- else if (cur_est > sel_est * 1.2)
- min_diff += 5;
- else if (cur_est > sel_est * 1.1)
- min_diff += 2;
- else if (cur_est > sel_est)
- min_diff++;
- }
- if (to_5ghz) {
- int reduce = 2;
- /* Make it easier to move to 5 GHz band */
- if (sel_est > cur_est * 1.5)
- reduce = 5;
- else if (sel_est > cur_est * 1.2)
- reduce = 4;
- else if (sel_est > cur_est * 1.1)
- reduce = 3;
- if (min_diff > reduce)
- min_diff -= reduce;
- else
- min_diff = 0;
- }
- diff = abs(current_bss->level - selected->level);
- if (diff < min_diff) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Skip roam - too small difference in signal level (%d < %d)",
- diff, min_diff);
- return 0;
- }
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Allow reassociation due to difference in signal level (%d >= %d)",
- diff, min_diff);
- return 1;
- #else /* CONFIG_NO_ROAMING */
- return 0;
- #endif /* CONFIG_NO_ROAMING */
- }
- /*
- * Return a negative value if no scan results could be fetched or if scan
- * results should not be shared with other virtual interfaces.
- * Return 0 if scan results were fetched and may be shared with other
- * interfaces.
- * Return 1 if scan results may be shared with other virtual interfaces but may
- * not trigger any operations.
- * Return 2 if the interface was removed and cannot be used.
- */
- static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data,
- int own_request, int update_only)
- {
- struct wpa_scan_results *scan_res = NULL;
- int ret = 0;
- int ap = 0;
- #ifndef CONFIG_NO_RANDOM_POOL
- size_t i, num;
- #endif /* CONFIG_NO_RANDOM_POOL */
- #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 ||
- wpa_s->scan_res_handler == scan_only_handler)
- return -1;
- if (!own_request)
- return -1;
- if (data && data->scan_info.external_scan)
- 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);
- ret = -1;
- goto scan_work_done;
- }
- #ifndef CONFIG_NO_RANDOM_POOL
- 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 (update_only) {
- ret = 1;
- goto scan_work_done;
- }
- if (own_request && wpa_s->scan_res_handler &&
- !(data && data->scan_info.external_scan)) {
- 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);
- ret = 1;
- goto scan_work_done;
- }
- 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 */
- goto scan_work_done;
- }
- wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
- wpa_s->own_scan_running,
- data ? data->scan_info.external_scan : 0);
- if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
- wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
- own_request && !(data && data->scan_info.external_scan)) {
- wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
- wpa_s->manual_scan_id);
- wpa_s->manual_scan_use_id = 0;
- } else {
- 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 (data && data->scan_info.external_scan) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
- wpa_scan_results_free(scan_res);
- return 0;
- }
- if (wnm_scan_process(wpa_s, 1) > 0)
- goto scan_work_done;
- if (sme_proc_obss_scan(wpa_s) > 0)
- goto scan_work_done;
- if (own_request &&
- wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
- goto scan_work_done;
- if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
- goto scan_work_done;
- if (autoscan_notify_scan(wpa_s, scan_res))
- goto scan_work_done;
- if (wpa_s->disconnected) {
- wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
- goto scan_work_done;
- }
- if (!wpas_driver_bss_selection(wpa_s) &&
- bgscan_notify_scan(wpa_s, scan_res) == 1)
- goto scan_work_done;
- wpas_wps_update_ap_info(wpa_s, scan_res);
- if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
- wpa_s->wpa_state < WPA_COMPLETED)
- goto scan_work_done;
- wpa_scan_results_free(scan_res);
- if (own_request && wpa_s->scan_work) {
- struct wpa_radio_work *work = wpa_s->scan_work;
- wpa_s->scan_work = NULL;
- radio_work_done(work);
- }
- return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
- scan_work_done:
- wpa_scan_results_free(scan_res);
- if (own_request && wpa_s->scan_work) {
- struct wpa_radio_work *work = wpa_s->scan_work;
- wpa_s->scan_work = NULL;
- radio_work_done(work);
- }
- return ret;
- }
- static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
- int new_scan, int own_request)
- {
- struct wpa_bss *selected;
- struct wpa_ssid *ssid = NULL;
- int time_to_reenable = wpas_reenabled_network_time(wpa_s);
- if (time_to_reenable > 0) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Postpone network selection by %d seconds since all networks are disabled",
- time_to_reenable);
- eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
- eloop_register_timeout(time_to_reenable, 0,
- wpas_network_reenabled, wpa_s, NULL);
- return 0;
- }
- if (wpa_s->p2p_mgmt)
- return 0; /* no normal connection on p2p_mgmt interface */
- selected = wpa_supplicant_pick_network(wpa_s, &ssid);
- #ifdef CONFIG_MESH
- if (wpa_s->ifmsh) {
- wpa_msg(wpa_s, MSG_INFO,
- "Avoiding join because we already joined a mesh group");
- return 0;
- }
- #endif /* CONFIG_MESH */
- if (selected) {
- int skip;
- skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
- if (skip) {
- if (new_scan)
- wpa_supplicant_rsn_preauth_scan_results(wpa_s);
- return 0;
- }
- if (ssid != wpa_s->current_ssid &&
- wpa_s->wpa_state >= WPA_AUTHENTICATING) {
- wpa_s->own_disconnect_req = 1;
- wpa_supplicant_deauthenticate(
- wpa_s, WLAN_REASON_DEAUTH_LEAVING);
- }
- if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
- return -1;
- }
- if (new_scan)
- wpa_supplicant_rsn_preauth_scan_results(wpa_s);
- /*
- * Do not allow other virtual radios to trigger operations based
- * on these scan results since we do not want them to start
- * other associations at the same time.
- */
- return 1;
- } else {
- 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);
- if (new_scan)
- wpa_supplicant_rsn_preauth_scan_results(wpa_s);
- } else if (own_request) {
- /*
- * No SSID found. If SCAN results are as a result of
- * own scan request and not due to a scan request on
- * another shared interface, try another scan.
- */
- int timeout_sec = wpa_s->scan_interval;
- int timeout_usec = 0;
- #ifdef CONFIG_P2P
- int res;
- res = wpas_p2p_scan_no_go_seen(wpa_s);
- if (res == 2)
- return 2;
- if (res == 1)
- return 0;
- if (wpa_s->p2p_in_provisioning ||
- wpa_s->show_group_started ||
- wpa_s->p2p_in_invitation) {
- /*
- * Use shorter wait during P2P Provisioning
- * state and during P2P join-a-group operation
- * to speed up group formation.
- */
- timeout_sec = 0;
- timeout_usec = 250000;
- wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
- timeout_usec);
- return 0;
- }
- #endif /* CONFIG_P2P */
- #ifdef CONFIG_INTERWORKING
- if (wpa_s->conf->auto_interworking &&
- wpa_s->conf->interworking &&
- wpa_s->conf->cred) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
- "start ANQP fetch since no matching "
- "networks found");
- wpa_s->network_select = 1;
- wpa_s->auto_network_select = 1;
- interworking_start_fetch_anqp(wpa_s);
- return 1;
- }
- #endif /* CONFIG_INTERWORKING */
- #ifdef CONFIG_WPS
- if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
- timeout_sec = 0;
- timeout_usec = 500000;
- wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
- timeout_usec);
- return 0;
- }
- #endif /* CONFIG_WPS */
- if (wpa_supplicant_req_sched_scan(wpa_s))
- wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
- timeout_usec);
- wpa_msg_ctrl(wpa_s, MSG_INFO,
- WPA_EVENT_NETWORK_NOT_FOUND);
- }
- }
- return 0;
- }
- static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
- {
- struct wpa_supplicant *ifs;
- int res;
- res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
- if (res == 2) {
- /*
- * Interface may have been removed, so must not dereference
- * wpa_s after this.
- */
- return 1;
- }
- if (res < 0) {
- /*
- * If no scan results could be fetched, then no need to
- * notify those interfaces that did not actually request
- * this scan. Similarly, if scan results started a new operation on this
- * interface, do not notify other interfaces to avoid concurrent
- * operations during a connection attempt.
- */
- return 0;
- }
- /*
- * Check other interfaces to see if they share the same radio. If
- * so, they get updated with this same scan info.
- */
- dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
- radio_list) {
- if (ifs != wpa_s) {
- wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
- "sibling", ifs->ifname);
- res = _wpa_supplicant_event_scan_results(ifs, data, 0,
- res > 0);
- if (res < 0)
- return 0;
- }
- }
- return 0;
- }
- #endif /* CONFIG_NO_SCAN_PROCESSING */
- int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
- {
- #ifdef CONFIG_NO_SCAN_PROCESSING
- return -1;
- #else /* CONFIG_NO_SCAN_PROCESSING */
- struct os_reltime now;
- wpa_s->ignore_post_flush_scan_res = 0;
- if (wpa_s->last_scan_res_used == 0)
- return -1;
- os_get_reltime(&now);
- if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
- wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
- return -1;
- }
- return wpas_select_network_from_last_scan(wpa_s, 0, 1);
- #endif /* CONFIG_NO_SCAN_PROCESSING */
- }
- #ifdef CONFIG_WNM
- static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
- {
- struct wpa_supplicant *wpa_s = eloop_ctx;
- if (wpa_s->wpa_state < WPA_ASSOCIATED)
- return;
- if (!wpa_s->no_keep_alive) {
- wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
- MAC2STR(wpa_s->bssid));
- /* TODO: could skip this if normal data traffic has been sent */
- /* TODO: Consider using some more appropriate data frame for
- * this */
- if (wpa_s->l2)
- l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
- (u8 *) "", 0);
- }
- #ifdef CONFIG_SME
- if (wpa_s->sme.bss_max_idle_period) {
- unsigned int msec;
- msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
- if (msec > 100)
- msec -= 100;
- eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
- wnm_bss_keep_alive, wpa_s, NULL);
- }
- #endif /* CONFIG_SME */
- }
- static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
- const u8 *ies, size_t ies_len)
- {
- struct ieee802_11_elems elems;
- if (ies == NULL)
- return;
- if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
- return;
- #ifdef CONFIG_SME
- if (elems.bss_max_idle_period) {
- unsigned int msec;
- wpa_s->sme.bss_max_idle_period =
- WPA_GET_LE16(elems.bss_max_idle_period);
- wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
- "TU)%s", wpa_s->sme.bss_max_idle_period,
- (elems.bss_max_idle_period[2] & 0x01) ?
- " (protected keep-live required)" : "");
- if (wpa_s->sme.bss_max_idle_period == 0)
- wpa_s->sme.bss_max_idle_period = 1;
- if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
- eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
- /* msec times 1000 */
- msec = wpa_s->sme.bss_max_idle_period * 1024;
- if (msec > 100)
- msec -= 100;
- eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
- wnm_bss_keep_alive, wpa_s,
- NULL);
- }
- }
- #endif /* CONFIG_SME */
- }
- #endif /* CONFIG_WNM */
- void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
- {
- #ifdef CONFIG_WNM
- eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
- #endif /* CONFIG_WNM */
- }
- #ifdef CONFIG_INTERWORKING
- static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
- size_t len)
- {
- int res;
- wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
- res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
- if (res) {
- wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
- }
- return res;
- }
- static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
- const u8 *ies, size_t ies_len)
- {
- struct ieee802_11_elems elems;
- if (ies == NULL)
- return;
- if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
- return;
- if (elems.qos_map_set) {
- wpas_qos_map_set(wpa_s, elems.qos_map_set,
- elems.qos_map_set_len);
- }
- }
- #endif /* CONFIG_INTERWORKING */
- #ifdef CONFIG_FST
- static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
- const u8 *ie, size_t ie_len)
- {
- struct mb_ies_info mb_ies;
- if (!ie || !ie_len || !wpa_s->fst)
- return -ENOENT;
- os_memset(&mb_ies, 0, sizeof(mb_ies));
- while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
- size_t len;
- len = 2 + ie[1];
- if (len > ie_len) {
- wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
- ie, ie_len);
- break;
- }
- if (ie[0] == WLAN_EID_MULTI_BAND) {
- wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
- (unsigned int) len);
- mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
- mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
- mb_ies.nof_ies++;
- }
- ie_len -= len;
- ie += len;
- }
- if (mb_ies.nof_ies > 0) {
- wpabuf_free(wpa_s->received_mb_ies);
- wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
- return 0;
- }
- return -ENOENT;
- }
- #endif /* CONFIG_FST */
- 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;
- #ifdef CONFIG_IEEE80211R
- u8 bssid[ETH_ALEN];
- #endif /* CONFIG_IEEE80211R */
- 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 */
- #ifdef CONFIG_WNM
- wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
- data->assoc_info.resp_ies_len);
- #endif /* CONFIG_WNM */
- #ifdef CONFIG_INTERWORKING
- interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
- data->assoc_info.resp_ies_len);
- #endif /* CONFIG_INTERWORKING */
- }
- 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_VENDOR_SPECIFIC && p[1] >= 4 &&
- (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 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_FILS
- #ifdef CONFIG_SME
- if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
- wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
- (!data->assoc_info.resp_frame ||
- fils_process_assoc_resp(wpa_s->wpa,
- data->assoc_info.resp_frame,
- data->assoc_info.resp_frame_len) < 0)) {
- wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
- return -1;
- }
- #endif /* CONFIG_SME */
- /* Additional processing for FILS when SME is in driver */
- if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
- !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
- wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
- #endif /* CONFIG_FILS */
- #ifdef CONFIG_OWE
- if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
- owe_process_assoc_resp(wpa_s->wpa,
- data->assoc_info.resp_ies,
- data->assoc_info.resp_ies_len) < 0) {
- wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
- return -1;
- }
- #endif /* CONFIG_OWE */
- #ifdef CONFIG_IEEE80211R
- #ifdef CONFIG_SME
- if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
- 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 */
- /* Process FT when SME is in the driver */
- if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
- wpa_ft_is_completed(wpa_s->wpa)) {
- 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;
- }
- wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
- }
- 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;
- if (wpa_s->assoc_freq && data->assoc_info.freq &&
- wpa_s->assoc_freq != data->assoc_info.freq) {
- wpa_printf(MSG_DEBUG, "Operating frequency changed from "
- "%u to %u MHz",
- wpa_s->assoc_freq, data->assoc_info.freq);
- wpa_supplicant_update_scan_results(wpa_s);
- }
- wpa_s->assoc_freq = data->assoc_info.freq;
- return 0;
- }
- static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
- {
- const u8 *bss_wpa = NULL, *bss_rsn = NULL;
- if (!wpa_s->current_bss || !wpa_s->current_ssid)
- return -1;
- if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
- return 0;
- bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
- WPA_IE_VENDOR_TYPE);
- bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
- if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
- bss_wpa ? 2 + bss_wpa[1] : 0) ||
- wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
- bss_rsn ? 2 + bss_rsn[1] : 0))
- return -1;
- return 0;
- }
- static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
- {
- #ifdef CONFIG_FST
- struct assoc_info *ai = data ? &data->assoc_info : NULL;
- struct wpa_bss *bss = wpa_s->current_bss;
- const u8 *ieprb, *iebcn;
- wpabuf_free(wpa_s->received_mb_ies);
- wpa_s->received_mb_ies = NULL;
- if (ai &&
- !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
- wpa_printf(MSG_DEBUG,
- "FST: MB IEs updated from Association Response frame");
- return;
- }
- if (ai &&
- !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
- wpa_printf(MSG_DEBUG,
- "FST: MB IEs updated from association event Beacon IEs");
- return;
- }
- if (!bss)
- return;
- ieprb = (const u8 *) (bss + 1);
- iebcn = ieprb + bss->ie_len;
- if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
- wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
- else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
- wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
- #endif /* CONFIG_FST */
- }
- static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
- {
- u8 bssid[ETH_ALEN];
- int ft_completed, already_authorized;
- int new_bss = 0;
- #ifdef CONFIG_AP
- if (wpa_s->ap_iface) {
- if (!data)
- return;
- 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 */
- eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
- ft_completed = wpa_ft_is_completed(wpa_s->wpa);
- if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
- return;
- /*
- * FILS authentication can share the same mechanism to mark the
- * connection fully authenticated, so set ft_completed also based on
- * FILS result.
- */
- if (!ft_completed)
- ft_completed = wpa_fils_is_completed(wpa_s->wpa);
- if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
- wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
- wpa_supplicant_deauthenticate(
- wpa_s, WLAN_REASON_DEAUTH_LEAVING);
- return;
- }
- wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
- if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
- MACSTR, MAC2STR(bssid));
- new_bss = 1;
- random_add_randomness(bssid, ETH_ALEN);
- os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
- os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
- 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_deauthenticate(
- wpa_s, WLAN_REASON_DEAUTH_LEAVING);
- return;
- }
- }
- if (wpa_s->conf->ap_scan == 1 &&
- wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
- if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
- wpa_msg(wpa_s, MSG_WARNING,
- "WPA/RSN IEs not updated");
- }
- wpas_fst_update_mb_assoc(wpa_s, data);
- #ifdef CONFIG_SME
- os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
- wpa_s->sme.prev_bssid_set = 1;
- wpa_s->sme.last_unprot_disconnect.sec = 0;
- #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);
- already_authorized = data && data->assoc_info.authorized;
- /*
- * 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 && !already_authorized) {
- 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) ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
- already_authorized)
- 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)) {
- if (wpa_s->current_ssid &&
- wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
- (wpa_s->drv_flags &
- WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
- /*
- * Set the key after having received joined-IBSS event
- * from the driver.
- */
- wpa_supplicant_set_wpa_none_key(wpa_s,
- wpa_s->current_ssid);
- }
- 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);
- }
- wpa_s->last_eapol_matches_bssid = 0;
- if (wpa_s->pending_eapol_rx) {
- struct os_reltime now, age;
- os_get_reltime(&now);
- os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
- if (age.sec == 0 && age.usec < 200000 &&
- 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_s->drv_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, wpa_s->current_ssid);
- 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 */
- wpas_wps_notify_assoc(wpa_s, bssid);
- if (data) {
- wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
- data->assoc_info.resp_ies_len,
- &data->assoc_info.wmm_params);
- if (wpa_s->reassoc_same_bss)
- wmm_ac_restore_tspecs(wpa_s);
- }
- #ifdef CONFIG_FILS
- if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
- struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, bssid);
- const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
- if (fils_cache_id)
- wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
- }
- #endif /* CONFIG_FILS */
- }
- static int disconnect_reason_recoverable(u16 reason_code)
- {
- return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
- reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
- reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
- }
- static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
- u16 reason_code,
- int locally_generated)
- {
- const u8 *bssid;
- 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.
- */
- return;
- }
- bssid = wpa_s->bssid;
- if (is_zero_ether_addr(bssid))
- bssid = wpa_s->pending_bssid;
- if (!is_zero_ether_addr(bssid) ||
- wpa_s->wpa_state >= WPA_AUTHENTICATING) {
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
- " reason=%d%s",
- MAC2STR(bssid), reason_code,
- locally_generated ? " locally_generated=1" : "");
- }
- }
- static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
- int locally_generated)
- {
- if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
- !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
- return 0; /* Not in 4-way handshake with PSK */
- /*
- * It looks like connection was lost while trying to go through PSK
- * 4-way handshake. Filter out known disconnection cases that are caused
- * by something else than PSK mismatch to avoid confusing reports.
- */
- if (locally_generated) {
- if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
- return 0;
- }
- return 1;
- }
- static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
- u16 reason_code,
- int locally_generated)
- {
- const u8 *bssid;
- int authenticating;
- u8 prev_pending_bssid[ETH_ALEN];
- struct wpa_bss *fast_reconnect = NULL;
- struct wpa_ssid *fast_reconnect_ssid = NULL;
- struct wpa_ssid *last_ssid;
- struct wpa_bss *curr = NULL;
- 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->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
- reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
- locally_generated)
- /*
- * Remove the inactive AP (which is probably out of range) from
- * the BSS list after marking disassociation. In particular
- * mac80211-based drivers use the
- * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
- * locally generated disconnection events for cases where the
- * AP does not reply anymore.
- */
- curr = wpa_s->current_bss;
- if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
- wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
- "pre-shared key may be incorrect");
- if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
- return; /* P2P group removed */
- wpas_auth_failed(wpa_s, "WRONG_KEY");
- }
- if (!wpa_s->disconnected &&
- (!wpa_s->auto_reconnect_disabled ||
- wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
- wpas_wps_searching(wpa_s) ||
- wpas_wps_reenable_networks_pending(wpa_s))) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
- "reconnect (wps=%d/%d wpa_state=%d)",
- wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
- wpas_wps_searching(wpa_s),
- wpa_s->wpa_state);
- if (wpa_s->wpa_state == WPA_COMPLETED &&
- wpa_s->current_ssid &&
- wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
- !locally_generated &&
- disconnect_reason_recoverable(reason_code)) {
- /*
- * It looks like the AP has dropped association with
- * us, but could allow us to get back in. Try to
- * reconnect to the same BSS without full scan to save
- * time for some common cases.
- */
- fast_reconnect = wpa_s->current_bss;
- fast_reconnect_ssid = wpa_s->current_ssid;
- } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
- wpa_supplicant_req_scan(wpa_s, 0, 100000);
- else
- wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
- "immediate scan");
- } else {
- wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
- "try to re-connect");
- wpa_s->reassociate = 0;
- wpa_s->disconnected = 1;
- if (!wpa_s->pno)
- wpa_supplicant_cancel_sched_scan(wpa_s);
- }
- bssid = wpa_s->bssid;
- if (is_zero_ether_addr(bssid))
- bssid = wpa_s->pending_bssid;
- if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
- wpas_connection_failed(wpa_s, bssid);
- wpa_sm_notify_disassoc(wpa_s->wpa);
- if (locally_generated)
- wpa_s->disconnect_reason = -reason_code;
- else
- wpa_s->disconnect_reason = reason_code;
- wpas_notify_disconnect_reason(wpa_s);
- if (wpa_supplicant_dynamic_keys(wpa_s)) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
- wpa_clear_keys(wpa_s, wpa_s->bssid);
- }
- last_ssid = wpa_s->current_ssid;
- wpa_supplicant_mark_disassoc(wpa_s);
- if (curr)
- wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
- if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
- sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
- wpa_s->current_ssid = last_ssid;
- }
- if (fast_reconnect &&
- !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
- !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
- !disallowed_ssid(wpa_s, fast_reconnect->ssid,
- fast_reconnect->ssid_len) &&
- !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
- !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
- #ifndef CONFIG_NO_SCAN_PROCESSING
- wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
- if (wpa_supplicant_connect(wpa_s, fast_reconnect,
- fast_reconnect_ssid) < 0) {
- /* Recover through full scan */
- wpa_supplicant_req_scan(wpa_s, 0, 100000);
- }
- #endif /* CONFIG_NO_SCAN_PROCESSING */
- } else if (fast_reconnect) {
- /*
- * Could not reconnect to the same BSS due to network being
- * disabled. Use a new scan to match the alternative behavior
- * above, i.e., to continue automatic reconnection attempt in a
- * way that enforces disabled network rules.
- */
- wpa_supplicant_req_scan(wpa_s, 0, 100000);
- }
- }
- #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
- 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_reltime t;
- wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
- pairwise = (data && data->michael_mic_failure.unicast);
- os_get_reltime(&t);
- if ((wpa_s->last_michael_mic_error.sec &&
- !os_reltime_expired(&t, &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_blacklist_add(wpa_s, wpa_s->bssid);
- 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;
- 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");
- }
- #ifdef CONFIG_P2P
- if (!wpa_s->global->p2p &&
- !wpa_s->global->p2p_disabled &&
- !wpa_s->conf->p2p_disabled &&
- (wpa_s->drv_flags &
- WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
- wpas_p2p_add_p2pdev_interface(
- wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
- wpa_printf(MSG_INFO,
- "P2P: Failed to enable P2P Device interface");
- /* Try to continue without. P2P will be disabled. */
- }
- #endif /* CONFIG_P2P */
- 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);
- wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
- l2_packet_deinit(wpa_s->l2);
- wpa_s->l2 = NULL;
- #ifdef CONFIG_P2P
- if (wpa_s->global->p2p &&
- wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
- (wpa_s->drv_flags &
- WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Removing P2P Device interface");
- wpa_supplicant_remove_iface(
- wpa_s->global, wpa_s->global->p2p_init_wpa_s,
- 0);
- wpa_s->global->p2p_init_wpa_s = NULL;
- }
- #endif /* CONFIG_P2P */
- #ifdef CONFIG_MATCH_IFACE
- if (wpa_s->matched) {
- wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
- break;
- }
- #endif /* CONFIG_MATCH_IFACE */
- #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_remove(wpa_s->wpa, data->tdls.peer);
- if (wpa_tdls_is_external_setup(wpa_s->wpa))
- wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
- else
- wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
- break;
- case TDLS_REQUEST_TEARDOWN:
- if (wpa_tdls_is_external_setup(wpa_s->wpa))
- wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
- data->tdls.reason_code);
- else
- wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
- data->tdls.peer);
- break;
- case TDLS_REQUEST_DISCOVER:
- wpa_tdls_send_discovery_request(wpa_s->wpa,
- data->tdls.peer);
- break;
- }
- }
- #endif /* CONFIG_TDLS */
- #ifdef CONFIG_WNM
- static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
- {
- if (data == NULL)
- return;
- switch (data->wnm.oper) {
- case WNM_OPER_SLEEP:
- wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
- "(action=%d, intval=%d)",
- data->wnm.sleep_action, data->wnm.sleep_intval);
- ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
- data->wnm.sleep_intval, NULL);
- break;
- }
- }
- #endif /* CONFIG_WNM */
- #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);
- }
- static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
- {
- struct wpa_ssid *ssid = wpa_s->current_ssid;
- if (ssid == NULL)
- return;
- /* check if the ssid is correctly configured as IBSS/RSN */
- if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
- return;
- ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
- data->rx_mgmt.frame_len);
- }
- #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 */
- }
- static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
- u16 reason_code, int locally_generated,
- const u8 *ie, size_t ie_len, int deauth)
- {
- #ifdef CONFIG_AP
- if (wpa_s->ap_iface && addr) {
- hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
- return;
- }
- if (wpa_s->ap_iface) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
- return;
- }
- #endif /* CONFIG_AP */
- if (!locally_generated)
- wpa_s->own_disconnect_req = 0;
- wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
- if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
- ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
- (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
- eapol_sm_failed(wpa_s->eapol))) &&
- !wpa_s->eap_expected_failure))
- wpas_auth_failed(wpa_s, "AUTH_FAILED");
- #ifdef CONFIG_P2P
- if (deauth && reason_code > 0) {
- if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
- locally_generated) > 0) {
- /*
- * The interface was removed, so cannot continue
- * processing any additional operations after this.
- */
- return;
- }
- }
- #endif /* CONFIG_P2P */
- wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
- locally_generated);
- }
- static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
- struct disassoc_info *info)
- {
- u16 reason_code = 0;
- int locally_generated = 0;
- const u8 *addr = NULL;
- const u8 *ie = NULL;
- size_t ie_len = 0;
- wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
- if (info) {
- addr = info->addr;
- ie = info->ie;
- ie_len = info->ie_len;
- reason_code = info->reason_code;
- locally_generated = info->locally_generated;
- wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
- locally_generated ? " (locally generated)" : "");
- if (addr)
- wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
- MAC2STR(addr));
- wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
- ie, ie_len);
- }
- #ifdef CONFIG_AP
- if (wpa_s->ap_iface && info && info->addr) {
- hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
- return;
- }
- if (wpa_s->ap_iface) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
- return;
- }
- #endif /* CONFIG_AP */
- #ifdef CONFIG_P2P
- if (info) {
- wpas_p2p_disassoc_notif(
- wpa_s, info->addr, reason_code, info->ie, info->ie_len,
- locally_generated);
- }
- #endif /* CONFIG_P2P */
- if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
- sme_event_disassoc(wpa_s, info);
- wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
- ie, ie_len, 0);
- }
- static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
- struct deauth_info *info)
- {
- u16 reason_code = 0;
- int locally_generated = 0;
- const u8 *addr = NULL;
- const u8 *ie = NULL;
- size_t ie_len = 0;
- wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
- if (info) {
- addr = info->addr;
- ie = info->ie;
- ie_len = info->ie_len;
- reason_code = info->reason_code;
- locally_generated = info->locally_generated;
- wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
- reason_code,
- locally_generated ? " (locally generated)" : "");
- if (addr) {
- wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
- MAC2STR(addr));
- }
- wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
- ie, ie_len);
- }
- wpa_reset_ft_completed(wpa_s->wpa);
- wpas_event_disconnect(wpa_s, addr, reason_code,
- locally_generated, ie, ie_len, 1);
- }
- static const char * reg_init_str(enum reg_change_initiator init)
- {
- switch (init) {
- case REGDOM_SET_BY_CORE:
- return "CORE";
- case REGDOM_SET_BY_USER:
- return "USER";
- case REGDOM_SET_BY_DRIVER:
- return "DRIVER";
- case REGDOM_SET_BY_COUNTRY_IE:
- return "COUNTRY_IE";
- case REGDOM_BEACON_HINT:
- return "BEACON_HINT";
- }
- return "?";
- }
- static const char * reg_type_str(enum reg_type type)
- {
- switch (type) {
- case REGDOM_TYPE_UNKNOWN:
- return "UNKNOWN";
- case REGDOM_TYPE_COUNTRY:
- return "COUNTRY";
- case REGDOM_TYPE_WORLD:
- return "WORLD";
- case REGDOM_TYPE_CUSTOM_WORLD:
- return "CUSTOM_WORLD";
- case REGDOM_TYPE_INTERSECTION:
- return "INTERSECTION";
- }
- return "?";
- }
- static void wpa_supplicant_update_channel_list(
- struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
- {
- struct wpa_supplicant *ifs;
- u8 dfs_domain;
- /*
- * To allow backwards compatibility with higher level layers that
- * assumed the REGDOM_CHANGE event is sent over the initially added
- * interface. Find the highest parent of this interface and use it to
- * send the event.
- */
- for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
- ;
- wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
- reg_init_str(info->initiator), reg_type_str(info->type),
- info->alpha2[0] ? " alpha2=" : "",
- info->alpha2[0] ? info->alpha2 : "");
- if (wpa_s->drv_priv == NULL)
- return; /* Ignore event during drv initialization */
- dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
- radio_list) {
- wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
- ifs->ifname);
- free_hw_features(ifs);
- ifs->hw.modes = wpa_drv_get_hw_feature_data(
- ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
- /* Restart PNO/sched_scan with updated channel list */
- if (ifs->pno) {
- wpas_stop_pno(ifs);
- wpas_start_pno(ifs);
- } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
- wpa_dbg(ifs, MSG_DEBUG,
- "Channel list changed - restart sched_scan");
- wpas_scan_restart_sched_scan(ifs);
- }
- }
- wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
- }
- static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
- const u8 *frame, size_t len, int freq,
- int rssi)
- {
- const struct ieee80211_mgmt *mgmt;
- const u8 *payload;
- size_t plen;
- u8 category;
- if (len < IEEE80211_HDRLEN + 2)
- return;
- mgmt = (const struct ieee80211_mgmt *) frame;
- payload = frame + IEEE80211_HDRLEN;
- category = *payload++;
- plen = len - IEEE80211_HDRLEN - 1;
- wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
- " Category=%u DataLen=%d freq=%d MHz",
- MAC2STR(mgmt->sa), category, (int) plen, freq);
- if (category == WLAN_ACTION_WMM) {
- wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
- return;
- }
- #ifdef CONFIG_IEEE80211R
- if (category == WLAN_ACTION_FT) {
- ft_rx_action(wpa_s, payload, plen);
- return;
- }
- #endif /* CONFIG_IEEE80211R */
- #ifdef CONFIG_IEEE80211W
- #ifdef CONFIG_SME
- if (category == WLAN_ACTION_SA_QUERY) {
- sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
- return;
- }
- #endif /* CONFIG_SME */
- #endif /* CONFIG_IEEE80211W */
- #ifdef CONFIG_WNM
- if (mgmt->u.action.category == WLAN_ACTION_WNM) {
- ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
- return;
- }
- #endif /* CONFIG_WNM */
- #ifdef CONFIG_GAS
- if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
- mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
- gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
- mgmt->u.action.category,
- payload, plen, freq) == 0)
- return;
- #endif /* CONFIG_GAS */
- #ifdef CONFIG_GAS_SERVER
- if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
- mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
- gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
- mgmt->u.action.category,
- payload, plen, freq) == 0)
- return;
- #endif /* CONFIG_GAS_SERVER */
- #ifdef CONFIG_TDLS
- if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
- payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "TDLS: Received Discovery Response from " MACSTR,
- MAC2STR(mgmt->sa));
- return;
- }
- #endif /* CONFIG_TDLS */
- #ifdef CONFIG_INTERWORKING
- if (category == WLAN_ACTION_QOS && plen >= 1 &&
- payload[0] == QOS_QOS_MAP_CONFIG) {
- const u8 *pos = payload + 1;
- size_t qlen = plen - 1;
- wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
- MACSTR, MAC2STR(mgmt->sa));
- if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
- qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
- pos[1] <= qlen - 2 && pos[1] >= 16)
- wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
- return;
- }
- #endif /* CONFIG_INTERWORKING */
- if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
- payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
- wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
- payload + 1,
- plen - 1);
- return;
- }
- if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
- payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
- wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
- return;
- }
- if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
- payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
- wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
- payload + 1, plen - 1,
- rssi);
- return;
- }
- #ifdef CONFIG_FST
- if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
- fst_rx_action(wpa_s->fst, mgmt, len);
- return;
- }
- #endif /* CONFIG_FST */
- #ifdef CONFIG_DPP
- if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
- payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
- WPA_GET_BE24(&payload[1]) == OUI_WFA &&
- payload[4] == DPP_OUI_TYPE) {
- payload += 5;
- plen -= 5;
- wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
- return;
- }
- #endif /* CONFIG_DPP */
- wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
- category, payload, plen, freq);
- if (wpa_s->ifmsh)
- mesh_mpm_action_rx(wpa_s, mgmt, len);
- }
- static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
- union wpa_event_data *event)
- {
- struct wpa_freq_range_list *list;
- char *str = NULL;
- list = &event->freq_range;
- if (list->num)
- str = freq_range_list_str(list);
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
- str ? str : "");
- #ifdef CONFIG_P2P
- if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
- wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
- __func__);
- } else {
- wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
- /*
- * The update channel flow will also take care of moving a GO
- * from the unsafe frequency if needed.
- */
- wpas_p2p_update_channel_list(wpa_s,
- WPAS_P2P_CHANNEL_UPDATE_AVOID);
- }
- #endif /* CONFIG_P2P */
- os_free(str);
- }
- static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
- {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Connection authorized by device, previous state %d",
- wpa_s->wpa_state);
- if (wpa_s->wpa_state == WPA_ASSOCIATED) {
- 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);
- }
- wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
- data->assoc_info.ptk_kck_len,
- data->assoc_info.ptk_kek,
- data->assoc_info.ptk_kek_len);
- #ifdef CONFIG_FILS
- if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
- struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
- const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
- /* Update ERP next sequence number */
- eapol_sm_update_erp_next_seq_num(
- wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
- if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
- /* Add the new PMK and PMKID to the PMKSA cache */
- wpa_sm_pmksa_cache_add(wpa_s->wpa,
- data->assoc_info.fils_pmk,
- data->assoc_info.fils_pmk_len,
- data->assoc_info.fils_pmkid,
- wpa_s->bssid, fils_cache_id);
- } else if (data->assoc_info.fils_pmkid) {
- /* Update the current PMKSA used for this connection */
- pmksa_cache_set_current(wpa_s->wpa,
- data->assoc_info.fils_pmkid,
- NULL, NULL, 0, NULL);
- }
- } else {
- wpa_sm_set_rx_replay_ctr(wpa_s->wpa,
- data->assoc_info.key_replay_ctr);
- }
- #else /* CONFIG_FILS */
- wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
- #endif /* CONFIG_FILS */
- }
- void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
- union wpa_event_data *data)
- {
- struct wpa_supplicant *wpa_s = ctx;
- int resched;
- if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
- event != EVENT_INTERFACE_ENABLED &&
- event != EVENT_INTERFACE_STATUS &&
- event != EVENT_SCAN_RESULTS &&
- event != EVENT_SCHED_SCAN_STOPPED) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Ignore event %s (%d) while interface is disabled",
- event_to_string(event), event);
- return;
- }
- #ifndef CONFIG_NO_STDOUT_DEBUG
- {
- int level = MSG_DEBUG;
- if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
- const struct ieee80211_hdr *hdr;
- u16 fc;
- hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
- fc = le_to_host16(hdr->frame_control);
- if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
- WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
- level = MSG_EXCESSIVE;
- }
- wpa_dbg(wpa_s, level, "Event %s (%d) received",
- event_to_string(event), event);
- }
- #endif /* CONFIG_NO_STDOUT_DEBUG */
- switch (event) {
- case EVENT_AUTH:
- #ifdef CONFIG_FST
- if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
- data->auth.ies_len))
- wpa_printf(MSG_DEBUG,
- "FST: MB IEs updated from auth IE");
- #endif /* CONFIG_FST */
- sme_event_auth(wpa_s, data);
- break;
- case EVENT_ASSOC:
- #ifdef CONFIG_TESTING_OPTIONS
- if (wpa_s->ignore_auth_resp) {
- wpa_printf(MSG_INFO,
- "EVENT_ASSOC - ignore_auth_resp active!");
- break;
- }
- #endif /* CONFIG_TESTING_OPTIONS */
- wpa_supplicant_event_assoc(wpa_s, data);
- if (data &&
- (data->assoc_info.authorized ||
- (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
- wpa_fils_is_completed(wpa_s->wpa))))
- wpa_supplicant_event_assoc_auth(wpa_s, data);
- if (data) {
- wpa_msg(wpa_s, MSG_INFO,
- WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
- data->assoc_info.subnet_status);
- }
- break;
- case EVENT_DISASSOC:
- wpas_event_disassoc(wpa_s,
- data ? &data->disassoc_info : NULL);
- break;
- case EVENT_DEAUTH:
- #ifdef CONFIG_TESTING_OPTIONS
- if (wpa_s->ignore_auth_resp) {
- wpa_printf(MSG_INFO,
- "EVENT_DEAUTH - ignore_auth_resp active!");
- break;
- }
- #endif /* CONFIG_TESTING_OPTIONS */
- wpas_event_deauth(wpa_s,
- data ? &data->deauth_info : NULL);
- break;
- case EVENT_MICHAEL_MIC_FAILURE:
- wpa_supplicant_event_michael_mic_failure(wpa_s, data);
- break;
- #ifndef CONFIG_NO_SCAN_PROCESSING
- case EVENT_SCAN_STARTED:
- if (wpa_s->own_scan_requested ||
- (data && !data->scan_info.external_scan)) {
- struct os_reltime diff;
- os_get_reltime(&wpa_s->scan_start_time);
- os_reltime_sub(&wpa_s->scan_start_time,
- &wpa_s->scan_trigger_time, &diff);
- wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
- diff.sec, diff.usec);
- wpa_s->own_scan_requested = 0;
- wpa_s->own_scan_running = 1;
- if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
- wpa_s->manual_scan_use_id) {
- wpa_msg_ctrl(wpa_s, MSG_INFO,
- WPA_EVENT_SCAN_STARTED "id=%u",
- wpa_s->manual_scan_id);
- } else {
- wpa_msg_ctrl(wpa_s, MSG_INFO,
- WPA_EVENT_SCAN_STARTED);
- }
- } else {
- wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
- wpa_s->radio->external_scan_running = 1;
- wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
- }
- break;
- case EVENT_SCAN_RESULTS:
- if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
- wpa_s->scan_res_handler = NULL;
- wpa_s->own_scan_running = 0;
- wpa_s->radio->external_scan_running = 0;
- wpa_s->last_scan_req = NORMAL_SCAN_REQ;
- break;
- }
- if (!(data && data->scan_info.external_scan) &&
- os_reltime_initialized(&wpa_s->scan_start_time)) {
- struct os_reltime now, diff;
- os_get_reltime(&now);
- os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
- wpa_s->scan_start_time.sec = 0;
- wpa_s->scan_start_time.usec = 0;
- wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
- diff.sec, diff.usec);
- }
- if (wpa_supplicant_event_scan_results(wpa_s, data))
- break; /* interface may have been removed */
- if (!(data && data->scan_info.external_scan))
- wpa_s->own_scan_running = 0;
- if (data && data->scan_info.nl_scan_event)
- wpa_s->radio->external_scan_running = 0;
- radio_work_check_next(wpa_s);
- 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_WNM
- case EVENT_WNM:
- wpa_supplicant_event_wnm(wpa_s, data);
- break;
- #endif /* CONFIG_WNM */
- #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%s%s%s",
- MAC2STR(data->assoc_reject.bssid),
- data->assoc_reject.status_code,
- data->assoc_reject.timed_out ? " timeout" : "",
- data->assoc_reject.timeout_reason ? "=" : "",
- data->assoc_reject.timeout_reason ?
- data->assoc_reject.timeout_reason : "");
- else
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
- "status_code=%u%s%s%s",
- data->assoc_reject.status_code,
- data->assoc_reject.timed_out ? " timeout" : "",
- data->assoc_reject.timeout_reason ? "=" : "",
- data->assoc_reject.timeout_reason ?
- data->assoc_reject.timeout_reason : "");
- wpa_s->assoc_status_code = data->assoc_reject.status_code;
- wpas_notify_assoc_status_code(wpa_s);
- if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
- sme_event_assoc_reject(wpa_s, data);
- else {
- const u8 *bssid = data->assoc_reject.bssid;
- #ifdef CONFIG_FILS
- /* Update ERP next sequence number */
- if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS)
- eapol_sm_update_erp_next_seq_num(
- wpa_s->eapol,
- data->assoc_reject.fils_erp_next_seq_num);
- #endif /* CONFIG_FILS */
- if (bssid == NULL || is_zero_ether_addr(bssid))
- bssid = wpa_s->pending_bssid;
- wpas_connection_failed(wpa_s, bssid);
- wpa_supplicant_mark_disassoc(wpa_s);
- }
- break;
- case EVENT_AUTH_TIMED_OUT:
- /* It is possible to get this event from earlier connection */
- if (wpa_s->current_ssid &&
- wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Ignore AUTH_TIMED_OUT in mesh configuration");
- break;
- }
- if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
- sme_event_auth_timed_out(wpa_s, data);
- break;
- case EVENT_ASSOC_TIMED_OUT:
- /* It is possible to get this event from earlier connection */
- if (wpa_s->current_ssid &&
- wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Ignore ASSOC_TIMED_OUT in mesh configuration");
- break;
- }
- if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
- sme_event_assoc_timed_out(wpa_s, data);
- break;
- 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);
- #ifdef CONFIG_AP
- if (wpa_s->ap_iface == NULL) {
- #ifdef CONFIG_OFFCHANNEL
- if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
- data->tx_status.stype == WLAN_FC_STYPE_ACTION)
- offchannel_send_action_tx_status(
- wpa_s, data->tx_status.dst,
- data->tx_status.data,
- data->tx_status.data_len,
- data->tx_status.ack ?
- OFFCHANNEL_SEND_ACTION_SUCCESS :
- OFFCHANNEL_SEND_ACTION_NO_ACK);
- #endif /* CONFIG_OFFCHANNEL */
- break;
- }
- #endif /* CONFIG_AP */
- #ifdef CONFIG_OFFCHANNEL
- wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
- MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
- /*
- * Catch TX status events for Action frames we sent via group
- * interface in GO mode, or via standalone AP interface.
- * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
- * except when the primary interface is used as a GO interface
- * (for drivers which do not have group interface concurrency)
- */
- if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
- data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
- os_memcmp(wpa_s->p2pdev->pending_action_dst,
- data->tx_status.dst, ETH_ALEN) == 0) {
- offchannel_send_action_tx_status(
- wpa_s->p2pdev, data->tx_status.dst,
- data->tx_status.data,
- data->tx_status.data_len,
- data->tx_status.ack ?
- OFFCHANNEL_SEND_ACTION_SUCCESS :
- OFFCHANNEL_SEND_ACTION_NO_ACK);
- break;
- }
- #endif /* CONFIG_OFFCHANNEL */
- #ifdef CONFIG_AP
- 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;
- }
- #endif /* CONFIG_AP */
- break;
- #ifdef CONFIG_AP
- case EVENT_EAPOL_TX_STATUS:
- ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
- data->eapol_tx_status.data,
- data->eapol_tx_status.data_len,
- data->eapol_tx_status.ack);
- break;
- case EVENT_DRIVER_CLIENT_POLL_OK:
- ap_client_poll_ok(wpa_s, data->client_poll.addr);
- break;
- case EVENT_RX_FROM_UNKNOWN:
- if (wpa_s->ap_iface == NULL)
- break;
- ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
- data->rx_from_unknown.wds);
- break;
- case EVENT_CH_SWITCH:
- if (!data || !wpa_s->current_ssid)
- break;
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
- "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
- data->ch_switch.freq,
- data->ch_switch.ht_enabled,
- data->ch_switch.ch_offset,
- channel_width_to_string(data->ch_switch.ch_width),
- data->ch_switch.cf1,
- data->ch_switch.cf2);
- wpa_s->assoc_freq = data->ch_switch.freq;
- wpa_s->current_ssid->frequency = data->ch_switch.freq;
- if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
- wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
- wpa_s->current_ssid->mode ==
- WPAS_MODE_P2P_GROUP_FORMATION) {
- wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
- data->ch_switch.ht_enabled,
- data->ch_switch.ch_offset,
- data->ch_switch.ch_width,
- data->ch_switch.cf1,
- data->ch_switch.cf2);
- }
- wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
- break;
- #ifdef NEED_AP_MLME
- case EVENT_DFS_RADAR_DETECTED:
- if (data)
- wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
- break;
- case EVENT_DFS_CAC_STARTED:
- if (data)
- wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
- break;
- case EVENT_DFS_CAC_FINISHED:
- if (data)
- wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
- break;
- case EVENT_DFS_CAC_ABORTED:
- if (data)
- wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
- break;
- case EVENT_DFS_NOP_FINISHED:
- if (data)
- wpas_event_dfs_cac_nop_finished(wpa_s,
- &data->dfs_event);
- break;
- #endif /* NEED_AP_MLME */
- #endif /* CONFIG_AP */
- case EVENT_RX_MGMT: {
- u16 fc, stype;
- const struct ieee80211_mgmt *mgmt;
- #ifdef CONFIG_TESTING_OPTIONS
- if (wpa_s->ext_mgmt_frame_handling) {
- struct rx_mgmt *rx = &data->rx_mgmt;
- size_t hex_len = 2 * rx->frame_len + 1;
- char *hex = os_malloc(hex_len);
- if (hex) {
- wpa_snprintf_hex(hex, hex_len,
- rx->frame, rx->frame_len);
- wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
- rx->freq, rx->datarate, rx->ssi_signal,
- hex);
- os_free(hex);
- }
- break;
- }
- #endif /* CONFIG_TESTING_OPTIONS */
- mgmt = (const struct ieee80211_mgmt *)
- data->rx_mgmt.frame;
- fc = le_to_host16(mgmt->frame_control);
- stype = WLAN_FC_GET_STYPE(fc);
- #ifdef CONFIG_AP
- if (wpa_s->ap_iface == NULL) {
- #endif /* CONFIG_AP */
- #ifdef CONFIG_P2P
- if (stype == WLAN_FC_STYPE_PROBE_REQ &&
- data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
- const u8 *src = mgmt->sa;
- const u8 *ie;
- size_t ie_len;
- ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
- ie_len = data->rx_mgmt.frame_len -
- IEEE80211_HDRLEN;
- wpas_p2p_probe_req_rx(
- wpa_s, src, mgmt->da,
- mgmt->bssid, ie, ie_len,
- data->rx_mgmt.freq,
- data->rx_mgmt.ssi_signal);
- break;
- }
- #endif /* CONFIG_P2P */
- #ifdef CONFIG_IBSS_RSN
- if (wpa_s->current_ssid &&
- wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
- stype == WLAN_FC_STYPE_AUTH &&
- data->rx_mgmt.frame_len >= 30) {
- wpa_supplicant_event_ibss_auth(wpa_s, data);
- break;
- }
- #endif /* CONFIG_IBSS_RSN */
- if (stype == WLAN_FC_STYPE_ACTION) {
- wpas_event_rx_mgmt_action(
- wpa_s, data->rx_mgmt.frame,
- data->rx_mgmt.frame_len,
- data->rx_mgmt.freq,
- data->rx_mgmt.ssi_signal);
- break;
- }
- if (wpa_s->ifmsh) {
- mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
- break;
- }
- wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
- "management frame in non-AP mode");
- break;
- #ifdef CONFIG_AP
- }
- if (stype == WLAN_FC_STYPE_PROBE_REQ &&
- data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
- const u8 *ie;
- size_t ie_len;
- ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
- ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
- wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
- mgmt->bssid, ie, ie_len,
- data->rx_mgmt.ssi_signal);
- }
- ap_mgmt_rx(wpa_s, &data->rx_mgmt);
- #endif /* CONFIG_AP */
- 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.da,
- data->rx_probe_req.bssid,
- data->rx_probe_req.ie,
- data->rx_probe_req.ie_len,
- data->rx_probe_req.ssi_signal);
- break;
- }
- #endif /* CONFIG_AP */
- wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
- data->rx_probe_req.da,
- data->rx_probe_req.bssid,
- data->rx_probe_req.ie,
- data->rx_probe_req.ie_len,
- 0,
- data->rx_probe_req.ssi_signal);
- break;
- case EVENT_REMAIN_ON_CHANNEL:
- #ifdef CONFIG_OFFCHANNEL
- offchannel_remain_on_channel_cb(
- wpa_s, data->remain_on_channel.freq,
- data->remain_on_channel.duration);
- #endif /* CONFIG_OFFCHANNEL */
- 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:
- #ifdef CONFIG_OFFCHANNEL
- offchannel_cancel_remain_on_channel_cb(
- wpa_s, data->remain_on_channel.freq);
- #endif /* CONFIG_OFFCHANNEL */
- wpas_p2p_cancel_remain_on_channel_cb(
- wpa_s, data->remain_on_channel.freq);
- #ifdef CONFIG_DPP
- wpas_dpp_cancel_remain_on_channel_cb(
- wpa_s, data->remain_on_channel.freq);
- #endif /* CONFIG_DPP */
- break;
- 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:
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
- "above=%d signal=%d noise=%d txrate=%d",
- data->signal_change.above_threshold,
- data->signal_change.current_signal,
- data->signal_change.current_noise,
- data->signal_change.current_txrate);
- wpa_bss_update_level(wpa_s->current_bss,
- data->signal_change.current_signal);
- 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) {
- wpa_supplicant_update_mac_addr(wpa_s);
- if (wpa_s->p2p_mgmt) {
- wpa_supplicant_set_state(wpa_s,
- WPA_DISCONNECTED);
- break;
- }
- #ifdef CONFIG_AP
- if (!wpa_s->ap_iface) {
- wpa_supplicant_set_state(wpa_s,
- WPA_DISCONNECTED);
- wpa_s->scan_req = NORMAL_SCAN_REQ;
- 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");
- #ifdef CONFIG_P2P
- if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
- (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
- wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
- /*
- * Mark interface disabled if this happens to end up not
- * being removed as a separate P2P group interface.
- */
- wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
- /*
- * The interface was externally disabled. Remove
- * it assuming an external entity will start a
- * new session if needed.
- */
- if (wpa_s->current_ssid &&
- wpa_s->current_ssid->p2p_group)
- wpas_p2p_interface_unavailable(wpa_s);
- else
- wpas_p2p_disconnect(wpa_s);
- /*
- * wpa_s instance may have been freed, so must not use
- * it here anymore.
- */
- break;
- }
- if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
- p2p_in_progress(wpa_s->global->p2p) > 1) {
- /* This radio work will be cancelled, so clear P2P
- * state as well.
- */
- p2p_stop_find(wpa_s->global->p2p);
- }
- #endif /* CONFIG_P2P */
- if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
- /*
- * Indicate disconnection to keep ctrl_iface events
- * consistent.
- */
- wpa_supplicant_event_disassoc(
- wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
- }
- wpa_supplicant_mark_disassoc(wpa_s);
- wpa_bss_flush(wpa_s);
- radio_remove_works(wpa_s, NULL, 0);
- wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
- break;
- case EVENT_CHANNEL_LIST_CHANGED:
- wpa_supplicant_update_channel_list(
- wpa_s, &data->channel_list_changed);
- break;
- case EVENT_INTERFACE_UNAVAILABLE:
- wpas_p2p_interface_unavailable(wpa_s);
- 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;
- wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
- data->best_chan.freq_5,
- data->best_chan.freq_overall);
- 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 */
- #ifdef CONFIG_TDLS
- if (data)
- wpa_tdls_disable_unreachable_link(wpa_s->wpa,
- data->low_ack.addr);
- #endif /* CONFIG_TDLS */
- 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;
- case EVENT_DRIVER_GTK_REKEY:
- if (os_memcmp(data->driver_gtk_rekey.bssid,
- wpa_s->bssid, ETH_ALEN))
- break;
- if (!wpa_s->wpa)
- break;
- wpa_sm_update_replay_ctr(wpa_s->wpa,
- data->driver_gtk_rekey.replay_ctr);
- break;
- case EVENT_SCHED_SCAN_STOPPED:
- wpa_s->sched_scanning = 0;
- resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
- wpa_supplicant_notify_scanning(wpa_s, 0);
- if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
- break;
- /*
- * If the driver stopped scanning without being requested to,
- * request a new scan to continue scanning for networks.
- */
- if (!wpa_s->sched_scan_stop_req &&
- wpa_s->wpa_state == WPA_SCANNING) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "Restart scanning after unexpected sched_scan stop event");
- wpa_supplicant_req_scan(wpa_s, 1, 0);
- break;
- }
- wpa_s->sched_scan_stop_req = 0;
- /*
- * Start a new sched scan to continue searching for more SSIDs
- * either if timed out or PNO schedule scan is pending.
- */
- if (wpa_s->sched_scan_timed_out) {
- wpa_supplicant_req_sched_scan(wpa_s);
- } else if (wpa_s->pno_sched_pending) {
- wpa_s->pno_sched_pending = 0;
- wpas_start_pno(wpa_s);
- } else if (resched) {
- wpa_supplicant_req_scan(wpa_s, 0, 0);
- }
- break;
- case EVENT_WPS_BUTTON_PUSHED:
- #ifdef CONFIG_WPS
- wpas_wps_start_pbc(wpa_s, NULL, 0);
- #endif /* CONFIG_WPS */
- break;
- case EVENT_AVOID_FREQUENCIES:
- wpa_supplicant_notify_avoid_freq(wpa_s, data);
- break;
- case EVENT_CONNECT_FAILED_REASON:
- #ifdef CONFIG_AP
- if (!wpa_s->ap_iface || !data)
- break;
- hostapd_event_connect_failed_reason(
- wpa_s->ap_iface->bss[0],
- data->connect_failed_reason.addr,
- data->connect_failed_reason.code);
- #endif /* CONFIG_AP */
- break;
- case EVENT_NEW_PEER_CANDIDATE:
- #ifdef CONFIG_MESH
- if (!wpa_s->ifmsh || !data)
- break;
- wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
- data->mesh_peer.ies,
- data->mesh_peer.ie_len);
- #endif /* CONFIG_MESH */
- break;
- case EVENT_SURVEY:
- #ifdef CONFIG_AP
- if (!wpa_s->ap_iface)
- break;
- hostapd_event_get_survey(wpa_s->ap_iface,
- &data->survey_results);
- #endif /* CONFIG_AP */
- break;
- case EVENT_ACS_CHANNEL_SELECTED:
- #ifdef CONFIG_AP
- #ifdef CONFIG_ACS
- if (!wpa_s->ap_iface)
- break;
- hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
- &data->acs_selected_channels);
- #endif /* CONFIG_ACS */
- #endif /* CONFIG_AP */
- break;
- case EVENT_P2P_LO_STOP:
- #ifdef CONFIG_P2P
- wpa_s->p2p_lo_started = 0;
- wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
- P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
- data->p2p_lo_stop.reason_code);
- #endif /* CONFIG_P2P */
- break;
- case EVENT_BEACON_LOSS:
- if (!wpa_s->current_bss || !wpa_s->current_ssid)
- break;
- wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
- bgscan_notify_beacon_loss(wpa_s);
- break;
- default:
- wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
- break;
- }
- }
- void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
- union wpa_event_data *data)
- {
- struct wpa_supplicant *wpa_s;
- if (event != EVENT_INTERFACE_STATUS)
- return;
- wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
- if (wpa_s && wpa_s->driver->get_ifindex) {
- unsigned int ifindex;
- ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
- if (ifindex != data->interface_status.ifindex) {
- wpa_dbg(wpa_s, MSG_DEBUG,
- "interface status ifindex %d mismatch (%d)",
- ifindex, data->interface_status.ifindex);
- return;
- }
- }
- #ifdef CONFIG_MATCH_IFACE
- else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
- struct wpa_interface *wpa_i;
- wpa_i = wpa_supplicant_match_iface(
- ctx, data->interface_status.ifname);
- if (!wpa_i)
- return;
- wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
- os_free(wpa_i);
- if (wpa_s)
- wpa_s->matched = 1;
- }
- #endif /* CONFIG_MATCH_IFACE */
- if (wpa_s)
- wpa_supplicant_event(wpa_s, event, data);
- }
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