| /* |
| * WPA Supplicant - Driver event processing |
| * Copyright (c) 2003-2012, 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 "wnm_sta.h" |
| #include "notify.h" |
| #include "common/ieee802_11_defs.h" |
| #include "common/ieee802_11_common.h" |
| #include "crypto/random.h" |
| #include "blacklist.h" |
| #include "wpas_glue.h" |
| #include "wps_supplicant.h" |
| #include "ibss_rsn.h" |
| #include "sme.h" |
| #include "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" |
| |
| |
| static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, |
| struct wpa_ssid *ssid) |
| { |
| struct os_time now; |
| |
| if (ssid == NULL || ssid->disabled_until.sec == 0) |
| return 0; |
| |
| os_get_time(&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; |
| } |
| |
| |
| static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_ssid *ssid, *old_ssid; |
| int res; |
| |
| if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) |
| return 0; |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " |
| "information"); |
| ssid = wpa_supplicant_get_ssid(wpa_s); |
| if (ssid == NULL) { |
| wpa_msg(wpa_s, MSG_INFO, |
| "No network configuration found for the current AP"); |
| return -1; |
| } |
| |
| if (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); |
| wpa_supplicant_set_suites(wpa_s, NULL, ssid, |
| wpa_ie, &wpa_ie_len); |
| } else { |
| wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); |
| } |
| |
| if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) |
| eapol_sm_invalidate_cached_session(wpa_s->eapol); |
| old_ssid = wpa_s->current_ssid; |
| wpa_s->current_ssid = ssid; |
| wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
| wpa_supplicant_initiate_eapol(wpa_s); |
| if (old_ssid != wpa_s->current_ssid) |
| wpas_notify_network_changed(wpa_s); |
| |
| return 0; |
| } |
| |
| |
| void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| |
| if (wpa_s->countermeasures) { |
| wpa_s->countermeasures = 0; |
| wpa_drv_set_countermeasures(wpa_s, 0); |
| wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| } |
| } |
| |
| |
| void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) |
| { |
| int bssid_changed; |
| |
| 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 */ |
| |
| 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); |
| #ifdef CONFIG_SME |
| wpa_s->sme.prev_bssid_set = 0; |
| #endif /* CONFIG_SME */ |
| #ifdef CONFIG_P2P |
| os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); |
| #endif /* CONFIG_P2P */ |
| wpa_s->current_bss = NULL; |
| wpa_s->assoc_freq = 0; |
| #ifdef CONFIG_IEEE80211R |
| #ifdef CONFIG_SME |
| if (wpa_s->sme.ft_ies) |
| sme_update_ft_ies(wpa_s, NULL, NULL, 0); |
| #endif /* CONFIG_SME */ |
| #endif /* CONFIG_IEEE80211R */ |
| |
| if (bssid_changed) |
| wpas_notify_bssid_changed(wpa_s); |
| |
| eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); |
| eapol_sm_notify_portValid(wpa_s->eapol, FALSE); |
| if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) |
| eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
| wpa_s->ap_ies_from_associnfo = 0; |
| wpa_s->current_ssid = NULL; |
| wpa_s->key_mgmt = 0; |
| } |
| |
| |
| static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_ie_data ie; |
| int pmksa_set = -1; |
| size_t i; |
| |
| if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || |
| ie.pmkid == NULL) |
| return; |
| |
| for (i = 0; i < ie.num_pmkid; i++) { |
| pmksa_set = pmksa_cache_set_current(wpa_s->wpa, |
| ie.pmkid + i * PMKID_LEN, |
| NULL, NULL, 0); |
| if (pmksa_set == 0) { |
| eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); |
| break; |
| } |
| } |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " |
| "PMKSA cache", pmksa_set == 0 ? "" : "not "); |
| } |
| |
| |
| static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| if (data == NULL) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " |
| "event"); |
| return; |
| } |
| wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR |
| " index=%d preauth=%d", |
| MAC2STR(data->pmkid_candidate.bssid), |
| data->pmkid_candidate.index, |
| data->pmkid_candidate.preauth); |
| |
| pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, |
| data->pmkid_candidate.index, |
| data->pmkid_candidate.preauth); |
| } |
| |
| |
| static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) |
| { |
| if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
| wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) |
| return 0; |
| |
| #ifdef IEEE8021X_EAPOL |
| if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
| wpa_s->current_ssid && |
| !(wpa_s->current_ssid->eapol_flags & |
| (EAPOL_FLAG_REQUIRE_KEY_UNICAST | |
| EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { |
| /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either |
| * plaintext or static WEP keys). */ |
| return 0; |
| } |
| #endif /* IEEE8021X_EAPOL */ |
| |
| return 1; |
| } |
| |
| |
| /** |
| * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC |
| * @wpa_s: pointer to wpa_supplicant data |
| * @ssid: Configuration data for the network |
| * Returns: 0 on success, -1 on failure |
| * |
| * This function is called when starting authentication with a network that is |
| * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). |
| */ |
| int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, |
| struct wpa_ssid *ssid) |
| { |
| #ifdef IEEE8021X_EAPOL |
| #ifdef PCSC_FUNCS |
| int aka = 0, sim = 0, type; |
| |
| if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) |
| return 0; |
| |
| if (ssid->eap.eap_methods == NULL) { |
| sim = 1; |
| aka = 1; |
| } else { |
| struct eap_method_type *eap = ssid->eap.eap_methods; |
| while (eap->vendor != EAP_VENDOR_IETF || |
| eap->method != EAP_TYPE_NONE) { |
| if (eap->vendor == EAP_VENDOR_IETF) { |
| if (eap->method == EAP_TYPE_SIM) |
| sim = 1; |
| else if (eap->method == EAP_TYPE_AKA || |
| 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); |
| if (sim && aka) |
| type = SCARD_TRY_BOTH; |
| else if (aka) |
| type = SCARD_USIM_ONLY; |
| else |
| type = SCARD_GSM_SIM_ONLY; |
| |
| wpa_s->scard = scard_init(type, NULL); |
| 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 wpa_supplicant_match_privacy(struct wpa_bss *bss, |
| struct wpa_ssid *ssid) |
| { |
| int i, privacy = 0; |
| |
| if (ssid->mixed_cell) |
| return 1; |
| |
| #ifdef CONFIG_WPS |
| if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
| return 1; |
| #endif /* CONFIG_WPS */ |
| |
| for (i = 0; i < NUM_WEP_KEYS; i++) { |
| if (ssid->wep_key_len[i]) { |
| privacy = 1; |
| break; |
| } |
| } |
| #ifdef IEEE8021X_EAPOL |
| if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && |
| ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | |
| EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) |
| privacy = 1; |
| #endif /* IEEE8021X_EAPOL */ |
| |
| if (wpa_key_mgmt_wpa(ssid->key_mgmt)) |
| 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) |
| { |
| 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)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " |
| "failed"); |
| break; |
| } |
| |
| if (wep_ok && |
| (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) |
| { |
| wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " |
| "in RSN IE"); |
| return 1; |
| } |
| |
| if (!(ie.proto & ssid->proto)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " |
| "mismatch"); |
| break; |
| } |
| |
| if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " |
| "cipher mismatch"); |
| break; |
| } |
| |
| if (!(ie.group_cipher & ssid->group_cipher)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " |
| "cipher mismatch"); |
| break; |
| } |
| |
| if (!(ie.key_mgmt & ssid->key_mgmt)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " |
| "mismatch"); |
| break; |
| } |
| |
| #ifdef CONFIG_IEEE80211W |
| if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && |
| (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? |
| wpa_s->conf->pmf : ssid->ieee80211w) == |
| MGMT_FRAME_PROTECTION_REQUIRED) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " |
| "frame protection"); |
| break; |
| } |
| #endif /* CONFIG_IEEE80211W */ |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); |
| return 1; |
| } |
| |
| wpa_ie = wpa_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)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " |
| "failed"); |
| break; |
| } |
| |
| if (wep_ok && |
| (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) |
| { |
| wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " |
| "in WPA IE"); |
| return 1; |
| } |
| |
| if (!(ie.proto & ssid->proto)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " |
| "mismatch"); |
| break; |
| } |
| |
| if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " |
| "cipher mismatch"); |
| break; |
| } |
| |
| if (!(ie.group_cipher & ssid->group_cipher)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " |
| "cipher mismatch"); |
| break; |
| } |
| |
| if (!(ie.key_mgmt & ssid->key_mgmt)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " |
| "mismatch"); |
| break; |
| } |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); |
| return 1; |
| } |
| |
| if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && |
| !rsn_ie) { |
| 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) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); |
| return 0; |
| } |
| |
| if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); |
| return 1; |
| } |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " |
| "WPA/WPA2"); |
| |
| return 0; |
| } |
| |
| |
| static int freq_allowed(int *freqs, int freq) |
| { |
| int i; |
| |
| if (freqs == NULL) |
| return 1; |
| |
| for (i = 0; freqs[i]; i++) |
| if (freqs[i] == freq) |
| return 1; |
| return 0; |
| } |
| |
| |
| static int ht_supported(const struct hostapd_hw_modes *mode) |
| { |
| if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { |
| /* |
| * The driver did not indicate whether it supports HT. Assume |
| * it does to avoid connection issues. |
| */ |
| return 1; |
| } |
| |
| /* |
| * IEEE Std 802.11n-2009 20.1.1: |
| * An HT non-AP STA shall support all EQM rates for one spatial stream. |
| */ |
| return mode->mcs_set[0] == 0xff; |
| } |
| |
| |
| static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) |
| { |
| 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)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, |
| " hardware does not support " |
| "HT 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. |
| */ |
| wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " |
| "not support required rate %d.%d Mbps", |
| r / 10, r % 10); |
| return 0; |
| } |
| } |
| } |
| |
| return 1; |
| } |
| |
| |
| static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, |
| int i, struct wpa_bss *bss, |
| struct wpa_ssid *group) |
| { |
| u8 wpa_ie_len, rsn_ie_len; |
| int wpa; |
| struct wpa_blacklist *e; |
| const u8 *ie; |
| struct wpa_ssid *ssid; |
| |
| 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; |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " |
| "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", |
| i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), |
| wpa_ie_len, rsn_ie_len, bss->caps, bss->level, |
| wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); |
| |
| e = wpa_blacklist_get(wpa_s, bss->bssid); |
| if (e) { |
| int limit = 1; |
| if (wpa_supplicant_enabled_networks(wpa_s) == 1) { |
| /* |
| * When only a single network is enabled, we can |
| * trigger blacklisting on the first failure. This |
| * should not be done with multiple enabled networks to |
| * avoid getting forced to move into a worse ESS on |
| * single error if there are no other BSSes of the |
| * current ESS. |
| */ |
| limit = 0; |
| } |
| if (e->count > limit) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " |
| "(count=%d limit=%d)", e->count, limit); |
| return NULL; |
| } |
| } |
| |
| if (bss->ssid_len == 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); |
| return NULL; |
| } |
| |
| if (disallowed_bssid(wpa_s, bss->bssid)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); |
| return NULL; |
| } |
| |
| if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { |
| 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 = ssid->pnext) { |
| int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); |
| int res; |
| |
| if (wpas_network_disabled(wpa_s, ssid)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); |
| continue; |
| } |
| |
| res = wpas_temp_disabled(wpa_s, ssid); |
| if (res > 0) { |
| 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) { |
| 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)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); |
| continue; |
| } |
| |
| if (ssid->bssid_set && |
| os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); |
| continue; |
| } |
| |
| if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) |
| continue; |
| |
| if (!wpa && |
| !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && |
| !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && |
| !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " |
| "not allowed"); |
| continue; |
| } |
| |
| if (!wpa_supplicant_match_privacy(bss, ssid)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " |
| "mismatch"); |
| continue; |
| } |
| |
| if (bss->caps & IEEE80211_CAP_IBSS) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) " |
| "network"); |
| continue; |
| } |
| |
| if (!freq_allowed(ssid->freq_list, bss->freq)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " |
| "allowed"); |
| continue; |
| } |
| |
| if (!rate_match(wpa_s, bss)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " |
| "not match"); |
| continue; |
| } |
| |
| #ifdef CONFIG_P2P |
| /* |
| * TODO: skip the AP if its P2P IE has Group Formation |
| * bit set in the P2P Group Capability Bitmap and we |
| * are not in Group Formation with that device. |
| */ |
| #endif /* CONFIG_P2P */ |
| |
| /* Matching configuration found */ |
| return ssid; |
| } |
| |
| /* No matching configuration found */ |
| return NULL; |
| } |
| |
| |
| static struct wpa_bss * |
| wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, |
| struct wpa_ssid *group, |
| struct wpa_ssid **selected_ssid) |
| { |
| unsigned int i; |
| |
| 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); |
| 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; |
| } |
| |
| |
| static struct wpa_bss * |
| wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, |
| struct wpa_ssid **selected_ssid) |
| { |
| struct wpa_bss *selected = NULL; |
| int prio; |
| |
| if (wpa_s->last_scan_res == NULL || |
| wpa_s->last_scan_res_used == 0) |
| return NULL; /* no scan results from last update */ |
| |
| while (selected == NULL) { |
| for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { |
| selected = wpa_supplicant_select_bss( |
| wpa_s, wpa_s->conf->pssid[prio], |
| selected_ssid); |
| 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; |
| } |
| |
| 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); |
| #ifdef CONFIG_P2P |
| wpa_s->sta_scan_pending = 0; |
| #endif /* CONFIG_P2P */ |
| 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"); |
| #ifdef CONFIG_P2P |
| if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) |
| return -1; |
| #endif /* CONFIG_P2P */ |
| |
| #ifdef CONFIG_WPS |
| wpas_wps_cancel(wpa_s); |
| #endif /* CONFIG_WPS */ |
| return -1; |
| } |
| |
| /* |
| * Do not trigger new association unless the BSSID has changed or if |
| * reassociation is requested. If we are in process of associating with |
| * the selected BSSID, do not trigger new attempt. |
| */ |
| if (wpa_s->reassociate || |
| (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && |
| ((wpa_s->wpa_state != WPA_ASSOCIATING && |
| wpa_s->wpa_state != WPA_AUTHENTICATING) || |
| os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != |
| 0))) { |
| if (wpa_supplicant_scard_init(wpa_s, ssid)) { |
| wpa_supplicant_req_new_scan(wpa_s, 10, 0); |
| return 0; |
| } |
| wpa_msg(wpa_s, MSG_DEBUG, "Request association: " |
| "reassociate: %d selected: "MACSTR " bssid: " MACSTR |
| " pending: " MACSTR " wpa_state: %s", |
| wpa_s->reassociate, MAC2STR(selected->bssid), |
| MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), |
| wpa_supplicant_state_txt(wpa_s->wpa_state)); |
| wpa_supplicant_associate(wpa_s, selected, ssid); |
| } else { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " |
| "selected AP"); |
| } |
| |
| 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; |
| if (ssid->mode == IEEE80211_MODE_IBSS || |
| ssid->mode == IEEE80211_MODE_AP) |
| return ssid; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based |
| * on BSS added and BSS changed events */ |
| static void wpa_supplicant_rsn_preauth_scan_results( |
| struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_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; |
| int min_diff; |
| |
| if (wpa_s->reassociate) |
| return 1; /* explicit request to reassociate */ |
| if (wpa_s->wpa_state < WPA_ASSOCIATED) |
| return 1; /* we are not associated; continue */ |
| if (wpa_s->current_ssid == NULL) |
| return 1; /* unknown current SSID */ |
| if (wpa_s->current_ssid != ssid) |
| return 1; /* different network block */ |
| |
| if (wpas_driver_bss_selection(wpa_s)) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - driver suppressed"); |
| 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 " level=%d", |
| MAC2STR(current_bss->bssid), current_bss->level); |
| wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", |
| MAC2STR(selected->bssid), selected->level); |
| |
| if (wpa_s->current_ssid->bssid_set && |
| os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == |
| 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " |
| "has preferred BSSID"); |
| return 1; |
| } |
| |
| if (current_bss->level < 0 && current_bss->level > selected->level) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " |
| "signal level"); |
| return 0; |
| } |
| |
| min_diff = 2; |
| if (current_bss->level < 0) { |
| if (current_bss->level < -85) |
| min_diff = 1; |
| else if (current_bss->level < -80) |
| min_diff = 2; |
| else if (current_bss->level < -75) |
| min_diff = 3; |
| else if (current_bss->level < -70) |
| min_diff = 4; |
| else |
| min_diff = 5; |
| } |
| if (abs(current_bss->level - selected->level) < min_diff) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " |
| "in signal level"); |
| return 0; |
| } |
| |
| return 1; |
| #else /* CONFIG_NO_ROAMING */ |
| return 0; |
| #endif /* CONFIG_NO_ROAMING */ |
| } |
| |
| |
| /* Return != 0 if no scan results could be fetched or if scan results should not |
| * be shared with other virtual interfaces. */ |
| static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| struct wpa_scan_results *scan_res; |
| 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); |
| |
| #ifdef CONFIG_P2P |
| if (wpa_s->global->p2p_cb_on_scan_complete && |
| !wpa_s->global->p2p_disabled && |
| wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending && |
| !wpa_s->scan_res_handler) { |
| wpa_s->global->p2p_cb_on_scan_complete = 0; |
| if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " |
| "stopped scan processing"); |
| wpa_s->sta_scan_pending = 1; |
| wpa_supplicant_req_scan(wpa_s, 5, 0); |
| return -1; |
| } |
| } |
| wpa_s->sta_scan_pending = 0; |
| #endif /* CONFIG_P2P */ |
| |
| scan_res = wpa_supplicant_get_scan_results(wpa_s, |
| data ? &data->scan_info : |
| NULL, 1); |
| if (scan_res == NULL) { |
| if (wpa_s->conf->ap_scan == 2 || ap) |
| return -1; |
| wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " |
| "scanning again"); |
| wpa_supplicant_req_new_scan(wpa_s, 1, 0); |
| return -1; |
| } |
| |
| #ifndef CONFIG_NO_RANDOM_POOL |
| num = scan_res->num; |
| if (num > 10) |
| num = 10; |
| for (i = 0; i < num; i++) { |
| u8 buf[5]; |
| struct wpa_scan_res *res = scan_res->res[i]; |
| buf[0] = res->bssid[5]; |
| buf[1] = res->qual & 0xff; |
| buf[2] = res->noise & 0xff; |
| buf[3] = res->level & 0xff; |
| buf[4] = res->tsf & 0xff; |
| random_add_randomness(buf, sizeof(buf)); |
| } |
| #endif /* CONFIG_NO_RANDOM_POOL */ |
| |
| if (wpa_s->scan_res_handler) { |
| void (*scan_res_handler)(struct wpa_supplicant *wpa_s, |
| struct wpa_scan_results *scan_res); |
| |
| scan_res_handler = wpa_s->scan_res_handler; |
| wpa_s->scan_res_handler = NULL; |
| scan_res_handler(wpa_s, scan_res); |
| |
| wpa_scan_results_free(scan_res); |
| return -2; |
| } |
| |
| if (ap) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface->scan_cb) |
| wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); |
| #endif /* CONFIG_AP */ |
| wpa_scan_results_free(scan_res); |
| return 0; |
| } |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); |
| wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); |
| wpas_notify_scan_results(wpa_s); |
| |
| wpas_notify_scan_done(wpa_s, 1); |
| |
| if (sme_proc_obss_scan(wpa_s) > 0) { |
| wpa_scan_results_free(scan_res); |
| return 0; |
| } |
| |
| if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { |
| wpa_scan_results_free(scan_res); |
| return 0; |
| } |
| |
| if (autoscan_notify_scan(wpa_s, scan_res)) { |
| wpa_scan_results_free(scan_res); |
| return 0; |
| } |
| |
| if (wpa_s->disconnected) { |
| wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
| wpa_scan_results_free(scan_res); |
| return 0; |
| } |
| |
| if (!wpas_driver_bss_selection(wpa_s) && |
| bgscan_notify_scan(wpa_s, scan_res) == 1) { |
| wpa_scan_results_free(scan_res); |
| return 0; |
| } |
| |
| wpas_wps_update_ap_info(wpa_s, scan_res); |
| |
| wpa_scan_results_free(scan_res); |
| |
| return wpas_select_network_from_last_scan(wpa_s); |
| } |
| |
| |
| int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_bss *selected; |
| struct wpa_ssid *ssid = NULL; |
| |
| selected = wpa_supplicant_pick_network(wpa_s, &ssid); |
| |
| if (selected) { |
| int skip; |
| skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); |
| if (skip) { |
| wpa_supplicant_rsn_preauth_scan_results(wpa_s); |
| return 0; |
| } |
| |
| if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); |
| return -1; |
| } |
| wpa_supplicant_rsn_preauth_scan_results(wpa_s); |
| /* |
| * Do not notify other virtual radios of 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); |
| wpa_supplicant_rsn_preauth_scan_results(wpa_s); |
| } else { |
| int timeout_sec = wpa_s->scan_interval; |
| int timeout_usec = 0; |
| #ifdef CONFIG_P2P |
| if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) |
| return 0; |
| |
| if (wpa_s->p2p_in_provisioning) { |
| /* |
| * Use shorter wait during P2P Provisioning |
| * state 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 */ |
| if (wpa_supplicant_req_sched_scan(wpa_s)) |
| wpa_supplicant_req_new_scan(wpa_s, timeout_sec, |
| timeout_usec); |
| } |
| } |
| return 0; |
| } |
| |
| |
| static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| const char *rn, *rn2; |
| struct wpa_supplicant *ifs; |
| |
| if (_wpa_supplicant_event_scan_results(wpa_s, data) != 0) { |
| /* |
| * If no scan results could be fetched, then no need to |
| * notify those interfaces that did not actually request |
| * this scan. 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; |
| } |
| |
| /* |
| * Check other interfaces to see if they have the same radio-name. If |
| * so, they get updated with this same scan info. |
| */ |
| if (!wpa_s->driver->get_radio_name) |
| return; |
| |
| rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); |
| if (rn == NULL || rn[0] == '\0') |
| return; |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " |
| "sharing same radio (%s) in event_scan_results", rn); |
| |
| for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { |
| if (ifs == wpa_s || !ifs->driver->get_radio_name) |
| continue; |
| |
| rn2 = ifs->driver->get_radio_name(ifs->drv_priv); |
| if (rn2 && os_strcmp(rn, rn2) == 0) { |
| wpa_printf(MSG_DEBUG, "%s: Updating scan results from " |
| "sibling", ifs->ifname); |
| _wpa_supplicant_event_scan_results(ifs, data); |
| } |
| } |
| } |
| |
| #endif /* CONFIG_NO_SCAN_PROCESSING */ |
| |
| |
| #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 */ |
| } |
| |
| |
| static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| int l, len, found = 0, wpa_found, rsn_found; |
| const u8 *p; |
| |
| wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); |
| if (data->assoc_info.req_ies) |
| wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, |
| data->assoc_info.req_ies_len); |
| if (data->assoc_info.resp_ies) { |
| wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, |
| data->assoc_info.resp_ies_len); |
| #ifdef CONFIG_TDLS |
| wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, |
| data->assoc_info.resp_ies_len); |
| #endif /* CONFIG_TDLS */ |
| #ifdef CONFIG_WNM |
| wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, |
| data->assoc_info.resp_ies_len); |
| #endif /* CONFIG_WNM */ |
| } |
| if (data->assoc_info.beacon_ies) |
| wpa_hexdump(MSG_DEBUG, "beacon_ies", |
| data->assoc_info.beacon_ies, |
| data->assoc_info.beacon_ies_len); |
| if (data->assoc_info.freq) |
| wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", |
| data->assoc_info.freq); |
| |
| p = data->assoc_info.req_ies; |
| l = data->assoc_info.req_ies_len; |
| |
| /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ |
| while (p && l >= 2) { |
| len = p[1] + 2; |
| if (len > l) { |
| wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", |
| p, l); |
| break; |
| } |
| if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && |
| (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || |
| (p[0] == WLAN_EID_RSN && p[1] >= 2)) { |
| if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) |
| break; |
| found = 1; |
| wpa_find_assoc_pmkid(wpa_s); |
| break; |
| } |
| l -= len; |
| p += len; |
| } |
| if (!found && data->assoc_info.req_ies) |
| wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); |
| |
| #ifdef CONFIG_IEEE80211R |
| #ifdef CONFIG_SME |
| if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { |
| u8 bssid[ETH_ALEN]; |
| if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || |
| wpa_ft_validate_reassoc_resp(wpa_s->wpa, |
| data->assoc_info.resp_ies, |
| data->assoc_info.resp_ies_len, |
| bssid) < 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " |
| "Reassociation Response failed"); |
| wpa_supplicant_deauthenticate( |
| wpa_s, WLAN_REASON_INVALID_IE); |
| return -1; |
| } |
| } |
| |
| p = data->assoc_info.resp_ies; |
| l = data->assoc_info.resp_ies_len; |
| |
| #ifdef CONFIG_WPS_STRICT |
| if (p && wpa_s->current_ssid && |
| wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { |
| struct wpabuf *wps; |
| wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); |
| if (wps == NULL) { |
| wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " |
| "include WPS IE in (Re)Association Response"); |
| return -1; |
| } |
| |
| if (wps_validate_assoc_resp(wps) < 0) { |
| wpabuf_free(wps); |
| wpa_supplicant_deauthenticate( |
| wpa_s, WLAN_REASON_INVALID_IE); |
| return -1; |
| } |
| wpabuf_free(wps); |
| } |
| #endif /* CONFIG_WPS_STRICT */ |
| |
| /* Go through the IEs and make a copy of the MDIE, if present. */ |
| while (p && l >= 2) { |
| len = p[1] + 2; |
| if (len > l) { |
| wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", |
| p, l); |
| break; |
| } |
| if (p[0] == WLAN_EID_MOBILITY_DOMAIN && |
| p[1] >= MOBILITY_DOMAIN_ID_LEN) { |
| wpa_s->sme.ft_used = 1; |
| os_memcpy(wpa_s->sme.mobility_domain, p + 2, |
| MOBILITY_DOMAIN_ID_LEN); |
| break; |
| } |
| l -= len; |
| p += len; |
| } |
| #endif /* CONFIG_SME */ |
| |
| wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, |
| data->assoc_info.resp_ies_len); |
| #endif /* CONFIG_IEEE80211R */ |
| |
| /* WPA/RSN IE from Beacon/ProbeResp */ |
| p = data->assoc_info.beacon_ies; |
| l = data->assoc_info.beacon_ies_len; |
| |
| /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. |
| */ |
| wpa_found = rsn_found = 0; |
| while (p && l >= 2) { |
| len = p[1] + 2; |
| if (len > l) { |
| wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", |
| p, l); |
| break; |
| } |
| if (!wpa_found && |
| p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && |
| os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { |
| wpa_found = 1; |
| wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); |
| } |
| |
| if (!rsn_found && |
| p[0] == WLAN_EID_RSN && p[1] >= 2) { |
| rsn_found = 1; |
| wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); |
| } |
| |
| l -= len; |
| p += len; |
| } |
| |
| if (!wpa_found && data->assoc_info.beacon_ies) |
| wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); |
| if (!rsn_found && data->assoc_info.beacon_ies) |
| wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); |
| if (wpa_found || rsn_found) |
| wpa_s->ap_ies_from_associnfo = 1; |
| |
| 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 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 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 wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| u8 bssid[ETH_ALEN]; |
| int ft_completed; |
| struct wpa_driver_capa capa; |
| |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface) { |
| hostapd_notif_assoc(wpa_s->ap_iface->bss[0], |
| data->assoc_info.addr, |
| data->assoc_info.req_ies, |
| data->assoc_info.req_ies_len, |
| data->assoc_info.reassoc); |
| return; |
| } |
| #endif /* CONFIG_AP */ |
| |
| ft_completed = wpa_ft_is_completed(wpa_s->wpa); |
| if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) |
| return; |
| |
| 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)); |
| 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->current_ssid) { |
| struct wpa_bss *bss = NULL; |
| |
| bss = wpa_supplicant_get_new_bss(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, bssid); |
| } |
| |
| if (bss) |
| wpa_s->current_bss = bss; |
| } |
| |
| 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) |
| wpa_msg(wpa_s, MSG_WARNING, |
| "WPA/RSN IEs not updated"); |
| } |
| } |
| |
| #ifdef CONFIG_SME |
| os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); |
| wpa_s->sme.prev_bssid_set = 1; |
| #endif /* CONFIG_SME */ |
| |
| wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); |
| if (wpa_s->current_ssid) { |
| /* When using scanning (ap_scan=1), SIM PC/SC interface can be |
| * initialized before association, but for other modes, |
| * initialize PC/SC here, if the current configuration needs |
| * smartcard or SIM/USIM. */ |
| wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); |
| } |
| wpa_sm_notify_assoc(wpa_s->wpa, bssid); |
| if (wpa_s->l2) |
| l2_packet_notify_auth_start(wpa_s->l2); |
| |
| /* |
| * Set portEnabled first to FALSE in order to get EAP state machine out |
| * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE |
| * state machine may transit to AUTHENTICATING state based on obsolete |
| * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to |
| * AUTHENTICATED without ever giving chance to EAP state machine to |
| * reset the state. |
| */ |
| if (!ft_completed) { |
| eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); |
| eapol_sm_notify_portValid(wpa_s->eapol, FALSE); |
| } |
| if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) |
| eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
| /* 802.1X::portControl = Auto */ |
| eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); |
| wpa_s->eapol_received = 0; |
| if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
| wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || |
| (wpa_s->current_ssid && |
| wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { |
| wpa_supplicant_cancel_auth_timeout(wpa_s); |
| wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); |
| } else if (!ft_completed) { |
| /* Timeout for receiving the first EAPOL packet */ |
| wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); |
| } |
| wpa_supplicant_cancel_scan(wpa_s); |
| |
| if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
| wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
| /* |
| * We are done; the driver will take care of RSN 4-way |
| * handshake. |
| */ |
| wpa_supplicant_cancel_auth_timeout(wpa_s); |
| wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); |
| eapol_sm_notify_portValid(wpa_s->eapol, TRUE); |
| eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); |
| } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
| wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
| /* |
| * The driver will take care of RSN 4-way handshake, so we need |
| * to allow EAPOL supplicant to complete its work without |
| * waiting for WPA supplicant. |
| */ |
| eapol_sm_notify_portValid(wpa_s->eapol, TRUE); |
| } else if (ft_completed) { |
| /* |
| * FT protocol completed - make sure EAPOL state machine ends |
| * up in authenticated. |
| */ |
| wpa_supplicant_cancel_auth_timeout(wpa_s); |
| wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); |
| eapol_sm_notify_portValid(wpa_s->eapol, TRUE); |
| eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); |
| } |
| |
| wpa_s->last_eapol_matches_bssid = 0; |
| |
| if (wpa_s->pending_eapol_rx) { |
| struct os_time now, age; |
| os_get_time(&now); |
| os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); |
| if (age.sec == 0 && age.usec < 100000 && |
| os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == |
| 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " |
| "frame that was received just before " |
| "association notification"); |
| wpa_supplicant_rx_eapol( |
| wpa_s, wpa_s->pending_eapol_rx_src, |
| wpabuf_head(wpa_s->pending_eapol_rx), |
| wpabuf_len(wpa_s->pending_eapol_rx)); |
| } |
| wpabuf_free(wpa_s->pending_eapol_rx); |
| wpa_s->pending_eapol_rx = NULL; |
| } |
| |
| if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
| wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && |
| wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && |
| capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { |
| /* Set static WEP keys again */ |
| wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); |
| } |
| |
| #ifdef CONFIG_IBSS_RSN |
| if (wpa_s->current_ssid && |
| wpa_s->current_ssid->mode == WPAS_MODE_IBSS && |
| wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
| wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && |
| wpa_s->ibss_rsn == NULL) { |
| wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); |
| if (!wpa_s->ibss_rsn) { |
| wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); |
| wpa_supplicant_deauthenticate( |
| wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
| return; |
| } |
| |
| ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); |
| } |
| #endif /* CONFIG_IBSS_RSN */ |
| |
| wpas_wps_notify_assoc(wpa_s, bssid); |
| } |
| |
| |
| 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; |
| |
| 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 (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"); |
| wpas_auth_failed(wpa_s); |
| } |
| if (!wpa_s->auto_reconnect_disabled || |
| wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " |
| "reconnect (wps=%d wpa_state=%d)", |
| wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, |
| 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; |
| 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_s->keys_cleared = 0; |
| wpa_clear_keys(wpa_s, wpa_s->bssid); |
| } |
| last_ssid = wpa_s->current_ssid; |
| wpa_supplicant_mark_disassoc(wpa_s); |
| |
| if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { |
| sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); |
| wpa_s->current_ssid = last_ssid; |
| } |
| |
| if (fast_reconnect) { |
| #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 */ |
| } |
| } |
| |
| |
| #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_time t; |
| |
| wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); |
| pairwise = (data && data->michael_mic_failure.unicast); |
| os_get_time(&t); |
| if ((wpa_s->last_michael_mic_error && |
| t.sec - wpa_s->last_michael_mic_error <= 60) || |
| wpa_s->pending_mic_error_report) { |
| if (wpa_s->pending_mic_error_report) { |
| /* |
| * Send the pending MIC error report immediately since |
| * we are going to start countermeasures and AP better |
| * do the same. |
| */ |
| wpa_sm_key_request(wpa_s->wpa, 1, |
| wpa_s->pending_mic_error_pairwise); |
| } |
| |
| /* Send the new MIC error report immediately since we are going |
| * to start countermeasures and AP better do the same. |
| */ |
| wpa_sm_key_request(wpa_s->wpa, 1, pairwise); |
| |
| /* initialize countermeasures */ |
| wpa_s->countermeasures = 1; |
| |
| wpa_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.sec; |
| wpa_s->mic_errors_seen++; |
| } |
| |
| |
| #ifdef CONFIG_TERMINATE_ONLASTIF |
| static int any_interfaces(struct wpa_supplicant *head) |
| { |
| struct wpa_supplicant *wpa_s; |
| |
| for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) |
| if (!wpa_s->interface_removed) |
| return 1; |
| return 0; |
| } |
| #endif /* CONFIG_TERMINATE_ONLASTIF */ |
| |
| |
| static void |
| wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) |
| return; |
| |
| switch (data->interface_status.ievent) { |
| case EVENT_INTERFACE_ADDED: |
| if (!wpa_s->interface_removed) |
| break; |
| wpa_s->interface_removed = 0; |
| wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); |
| if (wpa_supplicant_driver_init(wpa_s) < 0) { |
| wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " |
| "driver after interface was added"); |
| } |
| wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
| 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_IBSS_RSN |
| ibss_rsn_deinit(wpa_s->ibss_rsn); |
| wpa_s->ibss_rsn = NULL; |
| #endif /* CONFIG_IBSS_RSN */ |
| #ifdef CONFIG_TERMINATE_ONLASTIF |
| /* check if last interface */ |
| if (!any_interfaces(wpa_s->global->ifaces)) |
| eloop_terminate(); |
| #endif /* CONFIG_TERMINATE_ONLASTIF */ |
| break; |
| } |
| } |
| |
| |
| #ifdef CONFIG_PEERKEY |
| static void |
| wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| if (data == NULL) |
| return; |
| wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); |
| } |
| #endif /* CONFIG_PEERKEY */ |
| |
| |
| #ifdef CONFIG_TDLS |
| static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, |
| union wpa_event_data *data) |
| { |
| if (data == NULL) |
| return; |
| switch (data->tdls.oper) { |
| case TDLS_REQUEST_SETUP: |
| wpa_tdls_start(wpa_s->wpa, data->tdls.peer); |
| break; |
| case TDLS_REQUEST_TEARDOWN: |
| wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer, |
| data->tdls.reason_code); |
| 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); |
| } |
| #endif /* CONFIG_IBSS_RSN */ |
| |
| |
| #ifdef CONFIG_IEEE80211R |
| static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, |
| size_t len) |
| { |
| const u8 *sta_addr, *target_ap_addr; |
| u16 status; |
| |
| wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); |
| if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) |
| return; /* only SME case supported for now */ |
| if (len < 1 + 2 * ETH_ALEN + 2) |
| return; |
| if (data[0] != 2) |
| return; /* Only FT Action Response is supported for now */ |
| sta_addr = data + 1; |
| target_ap_addr = data + 1 + ETH_ALEN; |
| status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); |
| wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " |
| MACSTR " TargetAP " MACSTR " status %u", |
| MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); |
| |
| if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR |
| " in FT Action Response", MAC2STR(sta_addr)); |
| return; |
| } |
| |
| if (status) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " |
| "failure (status code %d)", status); |
| /* TODO: report error to FT code(?) */ |
| return; |
| } |
| |
| if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, |
| len - (1 + 2 * ETH_ALEN + 2), 1, |
| target_ap_addr, NULL, 0) < 0) |
| return; |
| |
| #ifdef CONFIG_SME |
| { |
| struct wpa_bss *bss; |
| bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); |
| if (bss) |
| wpa_s->sme.freq = bss->freq; |
| wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; |
| sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, |
| WLAN_AUTH_FT); |
| } |
| #endif /* CONFIG_SME */ |
| } |
| #endif /* CONFIG_IEEE80211R */ |
| |
| |
| static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, |
| struct unprot_deauth *e) |
| { |
| #ifdef CONFIG_IEEE80211W |
| wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " |
| "dropped: " MACSTR " -> " MACSTR |
| " (reason code %u)", |
| MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); |
| sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); |
| #endif /* CONFIG_IEEE80211W */ |
| } |
| |
| |
| static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, |
| struct unprot_disassoc *e) |
| { |
| #ifdef CONFIG_IEEE80211W |
| wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " |
| "dropped: " MACSTR " -> " MACSTR |
| " (reason code %u)", |
| MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); |
| sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); |
| #endif /* CONFIG_IEEE80211W */ |
| } |
| |
| |
| void wpa_supplicant_event(void *ctx, enum wpa_event_type event, |
| union wpa_event_data *data) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| u16 reason_code = 0; |
| int locally_generated = 0; |
| |
| if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && |
| event != EVENT_INTERFACE_ENABLED && |
| event != EVENT_INTERFACE_STATUS && |
| 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: |
| sme_event_auth(wpa_s, data); |
| break; |
| case EVENT_ASSOC: |
| wpa_supplicant_event_assoc(wpa_s, data); |
| break; |
| case EVENT_DISASSOC: |
| wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); |
| if (data) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", |
| data->disassoc_info.reason_code, |
| data->disassoc_info.locally_generated ? |
| " (locally generated)" : ""); |
| if (data->disassoc_info.addr) |
| wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, |
| MAC2STR(data->disassoc_info.addr)); |
| } |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface && data && data->disassoc_info.addr) { |
| hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], |
| data->disassoc_info.addr); |
| break; |
| } |
| if (wpa_s->ap_iface) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " |
| "AP mode"); |
| break; |
| } |
| #endif /* CONFIG_AP */ |
| if (data) { |
| reason_code = data->disassoc_info.reason_code; |
| locally_generated = |
| data->disassoc_info.locally_generated; |
| wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", |
| data->disassoc_info.ie, |
| data->disassoc_info.ie_len); |
| #ifdef CONFIG_P2P |
| wpas_p2p_disassoc_notif( |
| wpa_s, data->disassoc_info.addr, reason_code, |
| data->disassoc_info.ie, |
| data->disassoc_info.ie_len, |
| locally_generated); |
| #endif /* CONFIG_P2P */ |
| } |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
| sme_event_disassoc(wpa_s, data); |
| /* fall through */ |
| case EVENT_DEAUTH: |
| if (event == EVENT_DEAUTH) { |
| wpa_dbg(wpa_s, MSG_DEBUG, |
| "Deauthentication notification"); |
| if (data) { |
| reason_code = data->deauth_info.reason_code; |
| locally_generated = |
| data->deauth_info.locally_generated; |
| wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", |
| data->deauth_info.reason_code, |
| data->deauth_info.locally_generated ? |
| " (locally generated)" : ""); |
| if (data->deauth_info.addr) { |
| wpa_dbg(wpa_s, MSG_DEBUG, " * address " |
| MACSTR, |
| MAC2STR(data->deauth_info. |
| addr)); |
| } |
| wpa_hexdump(MSG_DEBUG, |
| "Deauthentication frame IE(s)", |
| data->deauth_info.ie, |
| data->deauth_info.ie_len); |
| } |
| } |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface && data && data->deauth_info.addr) { |
| hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], |
| data->deauth_info.addr); |
| break; |
| } |
| if (wpa_s->ap_iface) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " |
| "AP mode"); |
| break; |
| } |
| #endif /* CONFIG_AP */ |
| 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))) |
| wpas_auth_failed(wpa_s); |
| #ifdef CONFIG_P2P |
| if (event == EVENT_DEAUTH && data) { |
| if (wpas_p2p_deauth_notif(wpa_s, |
| data->deauth_info.addr, |
| reason_code, |
| data->deauth_info.ie, |
| data->deauth_info.ie_len, |
| locally_generated) > 0) { |
| /* |
| * The interface was removed, so cannot |
| * continue processing any additional |
| * operations after this. |
| */ |
| break; |
| } |
| } |
| #endif /* CONFIG_P2P */ |
| wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, |
| locally_generated); |
| break; |
| case EVENT_MICHAEL_MIC_FAILURE: |
| wpa_supplicant_event_michael_mic_failure(wpa_s, data); |
| break; |
| #ifndef CONFIG_NO_SCAN_PROCESSING |
| case EVENT_SCAN_RESULTS: |
| wpa_supplicant_event_scan_results(wpa_s, data); |
| #ifdef CONFIG_P2P |
| if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && |
| wpa_s->global->p2p != NULL && |
| wpa_s->wpa_state != WPA_AUTHENTICATING && |
| wpa_s->wpa_state != WPA_ASSOCIATING) { |
| wpa_s->global->p2p_cb_on_scan_complete = 0; |
| if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " |
| "continued after scan result processing"); |
| } |
| } |
| #endif /* CONFIG_P2P */ |
| 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", |
| MAC2STR(data->assoc_reject.bssid), |
| data->assoc_reject.status_code); |
| else |
| wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT |
| "status_code=%u", |
| data->assoc_reject.status_code); |
| 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; |
| 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: |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
| sme_event_auth_timed_out(wpa_s, data); |
| break; |
| case EVENT_ASSOC_TIMED_OUT: |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
| sme_event_assoc_timed_out(wpa_s, data); |
| break; |
| 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->parent->pending_action_dst)); |
| /* |
| * Catch TX status events for Action frames we sent via group |
| * interface in GO mode. |
| */ |
| if (data->tx_status.type == WLAN_FC_TYPE_MGMT && |
| data->tx_status.stype == WLAN_FC_STYPE_ACTION && |
| os_memcmp(wpa_s->parent->pending_action_dst, |
| data->tx_status.dst, ETH_ALEN) == 0) { |
| offchannel_send_action_tx_status( |
| wpa_s->parent, 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) |
| break; |
| if (!wpa_s->ap_iface) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " |
| "event in non-AP mode"); |
| break; |
| } |
| |
| #ifdef CONFIG_AP |
| wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, |
| data->ch_switch.ht_enabled, |
| data->ch_switch.ch_offset); |
| #endif /* CONFIG_AP */ |
| break; |
| case EVENT_REQ_CH_SW: |
| if (!data) |
| break; |
| ieee802_11_start_channel_switch(wpa_s->ap_iface->bss[0], |
| data->ch_switch.freq, FALSE); |
| break; |
| case EVENT_RX_MGMT: { |
| u16 fc, stype; |
| const struct ieee80211_mgmt *mgmt; |
| |
| mgmt = (const struct ieee80211_mgmt *) |
| data->rx_mgmt.frame; |
| fc = le_to_host16(mgmt->frame_control); |
| stype = WLAN_FC_GET_STYPE(fc); |
| |
| if (wpa_s->ap_iface == NULL) { |
| #ifdef CONFIG_P2P |
| if (stype == WLAN_FC_STYPE_PROBE_REQ && |
| data->rx_mgmt.frame_len > 24) { |
| const u8 *src = mgmt->sa; |
| const u8 *ie = mgmt->u.probe_req.variable; |
| size_t ie_len = data->rx_mgmt.frame_len - |
| (mgmt->u.probe_req.variable - |
| data->rx_mgmt.frame); |
| wpas_p2p_probe_req_rx( |
| wpa_s, src, mgmt->da, |
| mgmt->bssid, ie, ie_len, |
| data->rx_mgmt.ssi_signal); |
| break; |
| } |
| #endif /* CONFIG_P2P */ |
| wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " |
| "management frame in non-AP mode"); |
| break; |
| } |
| |
| if (stype == WLAN_FC_STYPE_PROBE_REQ && |
| data->rx_mgmt.frame_len > 24) { |
| const u8 *ie = mgmt->u.probe_req.variable; |
| size_t ie_len = data->rx_mgmt.frame_len - |
| (mgmt->u.probe_req.variable - |
| data->rx_mgmt.frame); |
| |
| wpas_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); |
| break; |
| } |
| #endif /* CONFIG_AP */ |
| case EVENT_RX_ACTION: |
| wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR |
| " Category=%u DataLen=%d freq=%d MHz", |
| MAC2STR(data->rx_action.sa), |
| data->rx_action.category, (int) data->rx_action.len, |
| data->rx_action.freq); |
| #ifdef CONFIG_IEEE80211R |
| if (data->rx_action.category == WLAN_ACTION_FT) { |
| ft_rx_action(wpa_s, data->rx_action.data, |
| data->rx_action.len); |
| break; |
| } |
| #endif /* CONFIG_IEEE80211R */ |
| #ifdef CONFIG_IEEE80211W |
| #ifdef CONFIG_SME |
| if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { |
| sme_sa_query_rx(wpa_s, data->rx_action.sa, |
| data->rx_action.data, |
| data->rx_action.len); |
| break; |
| } |
| #endif /* CONFIG_SME */ |
| #endif /* CONFIG_IEEE80211W */ |
| #ifdef CONFIG_WNM |
| if (data->rx_action.category == WLAN_ACTION_WNM) { |
| ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); |
| break; |
| } |
| #endif /* CONFIG_WNM */ |
| #ifdef CONFIG_GAS |
| if (data->rx_action.category == WLAN_ACTION_PUBLIC && |
| gas_query_rx(wpa_s->gas, data->rx_action.da, |
| data->rx_action.sa, data->rx_action.bssid, |
| data->rx_action.data, data->rx_action.len, |
| data->rx_action.freq) == 0) |
| break; |
| #endif /* CONFIG_GAS */ |
| #ifdef CONFIG_TDLS |
| if (data->rx_action.category == WLAN_ACTION_PUBLIC && |
| data->rx_action.len >= 4 && |
| data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { |
| wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " |
| "Response from " MACSTR, |
| MAC2STR(data->rx_action.sa)); |
| break; |
| } |
| #endif /* CONFIG_TDLS */ |
| #ifdef CONFIG_P2P |
| wpas_p2p_rx_action(wpa_s, data->rx_action.da, |
| data->rx_action.sa, |
| data->rx_action.bssid, |
| data->rx_action.category, |
| data->rx_action.data, |
| data->rx_action.len, data->rx_action.freq); |
| #endif /* CONFIG_P2P */ |
| break; |
| case EVENT_RX_PROBE_REQ: |
| if (data->rx_probe_req.sa == NULL || |
| data->rx_probe_req.ie == NULL) |
| break; |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface) { |
| hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], |
| data->rx_probe_req.sa, |
| data->rx_probe_req.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 */ |
| #ifdef CONFIG_P2P |
| 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, |
| data->rx_probe_req.ssi_signal); |
| #endif /* CONFIG_P2P */ |
| 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 */ |
| #ifdef CONFIG_P2P |
| wpas_p2p_remain_on_channel_cb( |
| wpa_s, data->remain_on_channel.freq, |
| data->remain_on_channel.duration); |
| #endif /* CONFIG_P2P */ |
| 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 */ |
| #ifdef CONFIG_P2P |
| wpas_p2p_cancel_remain_on_channel_cb( |
| wpa_s, data->remain_on_channel.freq); |
| #endif /* CONFIG_P2P */ |
| break; |
| #ifdef CONFIG_P2P |
| case EVENT_P2P_DEV_FOUND: { |
| struct p2p_peer_info peer_info; |
| |
| os_memset(&peer_info, 0, sizeof(peer_info)); |
| if (data->p2p_dev_found.dev_addr) |
| os_memcpy(peer_info.p2p_device_addr, |
| data->p2p_dev_found.dev_addr, ETH_ALEN); |
| if (data->p2p_dev_found.pri_dev_type) |
| os_memcpy(peer_info.pri_dev_type, |
| data->p2p_dev_found.pri_dev_type, |
| sizeof(peer_info.pri_dev_type)); |
| if (data->p2p_dev_found.dev_name) |
| os_strlcpy(peer_info.device_name, |
| data->p2p_dev_found.dev_name, |
| sizeof(peer_info.device_name)); |
| peer_info.config_methods = data->p2p_dev_found.config_methods; |
| peer_info.dev_capab = data->p2p_dev_found.dev_capab; |
| peer_info.group_capab = data->p2p_dev_found.group_capab; |
| |
| /* |
| * FIX: new_device=1 is not necessarily correct. We should |
| * maintain a P2P peer database in wpa_supplicant and update |
| * this information based on whether the peer is truly new. |
| */ |
| wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); |
| break; |
| } |
| case EVENT_P2P_GO_NEG_REQ_RX: |
| wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, |
| data->p2p_go_neg_req_rx.dev_passwd_id); |
| break; |
| case EVENT_P2P_GO_NEG_COMPLETED: |
| wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); |
| break; |
| case EVENT_P2P_PROV_DISC_REQUEST: |
| wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, |
| data->p2p_prov_disc_req.config_methods, |
| data->p2p_prov_disc_req.dev_addr, |
| data->p2p_prov_disc_req.pri_dev_type, |
| data->p2p_prov_disc_req.dev_name, |
| data->p2p_prov_disc_req.supp_config_methods, |
| data->p2p_prov_disc_req.dev_capab, |
| data->p2p_prov_disc_req.group_capab, |
| NULL, 0); |
| break; |
| case EVENT_P2P_PROV_DISC_RESPONSE: |
| wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, |
| data->p2p_prov_disc_resp.config_methods); |
| break; |
| case EVENT_P2P_SD_REQUEST: |
| wpas_sd_request(wpa_s, data->p2p_sd_req.freq, |
| data->p2p_sd_req.sa, |
| data->p2p_sd_req.dialog_token, |
| data->p2p_sd_req.update_indic, |
| data->p2p_sd_req.tlvs, |
| data->p2p_sd_req.tlvs_len); |
| break; |
| case EVENT_P2P_SD_RESPONSE: |
| wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, |
| data->p2p_sd_resp.update_indic, |
| data->p2p_sd_resp.tlvs, |
| data->p2p_sd_resp.tlvs_len); |
| break; |
| #endif /* CONFIG_P2P */ |
| case EVENT_EAPOL_RX: |
| wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, |
| data->eapol_rx.data, |
| data->eapol_rx.data_len); |
| break; |
| case EVENT_SIGNAL_CHANGE: |
| bgscan_notify_signal_change( |
| wpa_s, data->signal_change.above_threshold, |
| data->signal_change.current_signal, |
| data->signal_change.current_noise, |
| data->signal_change.current_txrate); |
| break; |
| case EVENT_INTERFACE_ENABLED: |
| wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); |
| if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { |
| wpa_supplicant_update_mac_addr(wpa_s); |
| #ifdef CONFIG_AP |
| if (!wpa_s->ap_iface) { |
| wpa_supplicant_set_state(wpa_s, |
| WPA_DISCONNECTED); |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| } else |
| wpa_supplicant_set_state(wpa_s, |
| WPA_COMPLETED); |
| #else /* CONFIG_AP */ |
| wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| #endif /* CONFIG_AP */ |
| } |
| break; |
| case EVENT_INTERFACE_DISABLED: |
| wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); |
| wpa_supplicant_mark_disassoc(wpa_s); |
| wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); |
| break; |
| case EVENT_CHANNEL_LIST_CHANGED: |
| if (wpa_s->drv_priv == NULL) |
| break; /* Ignore event during drv initialization */ |
| |
| free_hw_features(wpa_s); |
| wpa_s->hw.modes = wpa_drv_get_hw_feature_data( |
| wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); |
| |
| #ifdef CONFIG_P2P |
| wpas_p2p_update_channel_list(wpa_s); |
| #endif /* CONFIG_P2P */ |
| break; |
| case EVENT_INTERFACE_UNAVAILABLE: |
| #ifdef CONFIG_P2P |
| wpas_p2p_interface_unavailable(wpa_s); |
| #endif /* CONFIG_P2P */ |
| break; |
| case EVENT_BEST_CHANNEL: |
| wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " |
| "(%d %d %d)", |
| data->best_chan.freq_24, data->best_chan.freq_5, |
| data->best_chan.freq_overall); |
| wpa_s->best_24_freq = data->best_chan.freq_24; |
| wpa_s->best_5_freq = data->best_chan.freq_5; |
| wpa_s->best_overall_freq = data->best_chan.freq_overall; |
| #ifdef CONFIG_P2P |
| wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, |
| data->best_chan.freq_5, |
| data->best_chan.freq_overall); |
| #endif /* CONFIG_P2P */ |
| break; |
| case EVENT_UNPROT_DEAUTH: |
| wpa_supplicant_event_unprot_deauth(wpa_s, |
| &data->unprot_deauth); |
| break; |
| case EVENT_UNPROT_DISASSOC: |
| wpa_supplicant_event_unprot_disassoc(wpa_s, |
| &data->unprot_disassoc); |
| break; |
| case EVENT_STATION_LOW_ACK: |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface && data) |
| hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], |
| data->low_ack.addr); |
| #endif /* CONFIG_AP */ |
| #ifdef CONFIG_TDLS |
| if (data) |
| wpa_tdls_disable_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; |
| wpa_supplicant_notify_scanning(wpa_s, 0); |
| |
| if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) |
| break; |
| |
| /* |
| * If we timed out, start a new sched scan to continue |
| * searching for more SSIDs. |
| */ |
| if (wpa_s->sched_scan_timed_out) |
| wpa_supplicant_req_sched_scan(wpa_s); |
| break; |
| case EVENT_WPS_BUTTON_PUSHED: |
| #ifdef CONFIG_WPS |
| wpas_wps_start_pbc(wpa_s, NULL, 0); |
| #endif /* CONFIG_WPS */ |
| break; |
| default: |
| wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); |
| break; |
| } |
| } |