void sme_event_assoc_reject(struct wpa_supplicant *wpa_s, union wpa_event_data *data) { int bssid_changed; int timeout = 5000; wpa_printf(MSG_DEBUG, "SME: Association with " MACSTR " failed: " "status code %d", MAC2STR(wpa_s->pending_bssid), data->assoc_reject.status_code); bssid_changed = !is_zero_ether_addr(wpa_s->bssid); /* * For now, unconditionally terminate the previous authentication. In * theory, this should not be needed, but mac80211 gets quite confused * if the authentication is left pending.. Some roaming cases might * benefit from using the previous authentication, so this could be * optimized in the future. */ if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid, WLAN_REASON_DEAUTH_LEAVING) < 0) { wpa_msg(wpa_s, MSG_INFO, "Deauth request to the driver failed"); } wpa_s->sme.prev_bssid_set = 0; if (wpa_blacklist_add(wpa_s, wpa_s->pending_bssid) == 0) { struct wpa_blacklist *b; b = wpa_blacklist_get(wpa_s, wpa_s->pending_bssid); if (b && b->count < 3) { /* * Speed up next attempt if there could be other APs * that could accept association. */ timeout = 100; } } wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); os_memset(wpa_s->bssid, 0, ETH_ALEN); os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); /* * TODO: if more than one possible AP is available in scan results, * could try the other ones before requesting a new scan. */ ros_assoc_failed(wpa_s, wpa_s->pending_bssid, "Association rejected"); //wpa_supplicant_req_scan(wpa_s, timeout / 1000, // 1000 * (timeout % 1000)); }
void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) { int bssid_changed; 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); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); eapol_sm_notify_portValid(wpa_s->eapol, FALSE); if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); wpa_s->ap_ies_from_associnfo = 0; }
static void sme_deauth(struct wpa_supplicant *wpa_s) { int bssid_changed; bssid_changed = !is_zero_ether_addr(wpa_s->bssid); if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid, WLAN_REASON_DEAUTH_LEAVING) < 0) { wpa_msg(wpa_s, MSG_INFO, "SME: Deauth request to the driver " "failed"); } wpa_s->sme.prev_bssid_set = 0; wpas_connection_failed(wpa_s, wpa_s->pending_bssid); wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); os_memset(wpa_s->bssid, 0, ETH_ALEN); os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); }
void sme_authenticate(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, struct wpa_ssid *ssid) { struct wpa_driver_auth_params params; struct wpa_ssid *old_ssid; #ifdef CONFIG_IEEE80211R const u8 *ie; #endif /* CONFIG_IEEE80211R */ #ifdef CONFIG_IEEE80211R const u8 *md = NULL; #endif /* CONFIG_IEEE80211R */ int i, bssid_changed; #if defined(ANDROID_P2P) && defined(WIFI_EAGLE) int freq = 0; #endif /* ANDROID_P2P && WIFI_EAGLE */ if (bss == NULL) { wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for " "the network"); return; } wpa_s->current_bss = bss; os_memset(¶ms, 0, sizeof(params)); wpa_s->reassociate = 0; params.freq = bss->freq; params.bssid = bss->bssid; params.ssid = bss->ssid; params.ssid_len = bss->ssid_len; params.p2p = ssid->p2p_group; if (wpa_s->sme.ssid_len != params.ssid_len || os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0) wpa_s->sme.prev_bssid_set = 0; wpa_s->sme.freq = params.freq; os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len); wpa_s->sme.ssid_len = params.ssid_len; params.auth_alg = WPA_AUTH_ALG_OPEN; #ifdef IEEE8021X_EAPOL if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { if (ssid->leap) { if (ssid->non_leap == 0) params.auth_alg = WPA_AUTH_ALG_LEAP; else params.auth_alg |= WPA_AUTH_ALG_LEAP; } } #endif /* IEEE8021X_EAPOL */ wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", params.auth_alg); if (ssid->auth_alg) { params.auth_alg = ssid->auth_alg; wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " "0x%x", params.auth_alg); } for (i = 0; i < NUM_WEP_KEYS; i++) { if (ssid->wep_key_len[i]) params.wep_key[i] = ssid->wep_key[i]; params.wep_key_len[i] = ssid->wep_key_len[i]; } params.wep_tx_keyidx = ssid->wep_tx_keyidx; bssid_changed = !is_zero_ether_addr(wpa_s->bssid); os_memset(wpa_s->bssid, 0, ETH_ALEN); os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || wpa_bss_get_ie(bss, WLAN_EID_RSN)) && wpa_key_mgmt_wpa(ssid->key_mgmt)) { int try_opportunistic; try_opportunistic = ssid->proactive_key_caching && (ssid->proto & WPA_PROTO_RSN); if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, wpa_s->current_ssid, try_opportunistic) == 0) eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie); if (wpa_supplicant_set_suites(wpa_s, bss, ssid, wpa_s->sme.assoc_req_ie, &wpa_s->sme.assoc_req_ie_len)) { wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA " "key management and encryption suites"); return; } } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) { /* * Both WPA and non-WPA IEEE 802.1X enabled in configuration - * use non-WPA since the scan results did not indicate that the * AP is using WPA or WPA2. */ wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); wpa_s->sme.assoc_req_ie_len = 0; } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie); if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, wpa_s->sme.assoc_req_ie, &wpa_s->sme.assoc_req_ie_len)) { wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA " "key management and encryption suites (no " "scan results)"); return; } #ifdef CONFIG_WPS } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { struct wpabuf *wps_ie; wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_s->sme.assoc_req_ie)) { wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie); os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie), wpa_s->sme.assoc_req_ie_len); } else wpa_s->sme.assoc_req_ie_len = 0; wpabuf_free(wps_ie); wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); #endif /* CONFIG_WPS */ } else { wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); wpa_s->sme.assoc_req_ie_len = 0; } #ifdef CONFIG_IEEE80211R ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) md = ie + 2; wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); if (md) { /* Prepare for the next transition */ wpa_ft_prepare_auth_request(wpa_s->wpa, ie); } if (md && wpa_key_mgmt_ft(ssid->key_mgmt)) { if (wpa_s->sme.assoc_req_ie_len + 5 < sizeof(wpa_s->sme.assoc_req_ie)) { struct rsn_mdie *mdie; u8 *pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len; *pos++ = WLAN_EID_MOBILITY_DOMAIN; *pos++ = sizeof(*mdie); mdie = (struct rsn_mdie *) pos; os_memcpy(mdie->mobility_domain, md, MOBILITY_DOMAIN_ID_LEN); mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN]; wpa_s->sme.assoc_req_ie_len += 5; } if (wpa_s->sme.ft_used && os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 && wpa_sm_has_ptk(wpa_s->wpa)) { wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT " "over-the-air"); params.auth_alg = WPA_AUTH_ALG_FT; params.ie = wpa_s->sme.ft_ies; params.ie_len = wpa_s->sme.ft_ies_len; } } #endif /* CONFIG_IEEE80211R */ #ifdef CONFIG_IEEE80211W wpa_s->sme.mfp = ssid->ieee80211w; if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION) { const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); struct wpa_ie_data _ie; if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 && _ie.capabilities & (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports " "MFP: require MFP"); wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED; } } #endif /* CONFIG_IEEE80211W */ #ifdef CONFIG_P2P if (wpa_s->global->p2p) { u8 *pos; size_t len; int res; pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len; len = sizeof(wpa_s->sme.assoc_req_ie) - wpa_s->sme.assoc_req_ie_len; res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, ssid->p2p_group); if (res >= 0) wpa_s->sme.assoc_req_ie_len += res; } #endif /* CONFIG_P2P */ #ifdef CONFIG_HS20 if (wpa_s->conf->hs20) { struct wpabuf *hs20; hs20 = wpabuf_alloc(20); if (hs20) { wpas_hs20_add_indication(hs20); os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len, wpabuf_head(hs20), wpabuf_len(hs20)); wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20); wpabuf_free(hs20); } } #endif /* CONFIG_HS20 */ #ifdef CONFIG_INTERWORKING if (wpa_s->conf->interworking) { u8 *pos = wpa_s->sme.assoc_req_ie; if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN) pos += 2 + pos[1]; os_memmove(pos + 6, pos, wpa_s->sme.assoc_req_ie_len - (pos - wpa_s->sme.assoc_req_ie)); wpa_s->sme.assoc_req_ie_len += 6; *pos++ = WLAN_EID_EXT_CAPAB; *pos++ = 4; *pos++ = 0x00; *pos++ = 0x00; *pos++ = 0x00; *pos++ = 0x80; /* Bit 31 - Interworking */ } #endif /* CONFIG_INTERWORKING */ wpa_supplicant_cancel_sched_scan(wpa_s); wpa_supplicant_cancel_scan(wpa_s); wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid), wpa_ssid_txt(params.ssid, params.ssid_len), params.freq); wpa_clear_keys(wpa_s, bss->bssid); wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING); 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); wpa_s->sme.auth_alg = params.auth_alg; #if defined(ANDROID_P2P) && defined(WIFI_EAGLE) /* If multichannel concurrency is not supported, check for any frequency * conflict and take appropriate action. */ wpa_printf(MSG_DEBUG, "%s EAGLE: Priority choose", __func__); if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT) && ((freq = wpa_drv_shared_freq(wpa_s)) > 0) && (freq != params.freq)) { wpa_printf(MSG_DEBUG, "Shared interface with conflicting frequency found (%d != %d)" , freq, params.freq); if (wpas_p2p_handle_frequency_conflicts(wpa_s, params.freq) < 0) { /* Handling conflicts failed. Disable the current connect req and * notify the userspace to take appropriate action */ wpa_printf(MSG_DEBUG, "proiritize is not set. Notifying user space to handle the case"); wpa_supplicant_disable_network(wpa_s, ssid); wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id); os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); return; } } #endif /* ANDROID_P2P && WIFI_EAGLE */ if (wpa_drv_authenticate(wpa_s, ¶ms) < 0) { wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the " "driver failed"); wpas_connection_failed(wpa_s, bss->bssid); wpa_supplicant_mark_disassoc(wpa_s); return; } eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s, NULL); /* * Association will be started based on the authentication event from * the driver. */ }
static void sme_send_authentication(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, struct wpa_ssid *ssid, int start) { struct wpa_driver_auth_params params; struct wpa_ssid *old_ssid; #ifdef CONFIG_IEEE80211R const u8 *ie; #endif /* CONFIG_IEEE80211R */ #ifdef CONFIG_IEEE80211R const u8 *md = NULL; #endif /* CONFIG_IEEE80211R */ int i, bssid_changed; struct wpabuf *resp = NULL; u8 ext_capab[18]; int ext_capab_len; int skip_auth; if (bss == NULL) { wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for " "the network"); wpas_connect_work_done(wpa_s); return; } skip_auth = wpa_s->conf->reassoc_same_bss_optim && wpa_s->reassoc_same_bss; wpa_s->current_bss = bss; os_memset(¶ms, 0, sizeof(params)); wpa_s->reassociate = 0; params.freq = bss->freq; params.bssid = bss->bssid; params.ssid = bss->ssid; params.ssid_len = bss->ssid_len; params.p2p = ssid->p2p_group; if (wpa_s->sme.ssid_len != params.ssid_len || os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0) wpa_s->sme.prev_bssid_set = 0; wpa_s->sme.freq = params.freq; os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len); wpa_s->sme.ssid_len = params.ssid_len; params.auth_alg = WPA_AUTH_ALG_OPEN; #ifdef IEEE8021X_EAPOL if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { if (ssid->leap) { if (ssid->non_leap == 0) params.auth_alg = WPA_AUTH_ALG_LEAP; else params.auth_alg |= WPA_AUTH_ALG_LEAP; } } #endif /* IEEE8021X_EAPOL */ wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", params.auth_alg); if (ssid->auth_alg) { params.auth_alg = ssid->auth_alg; wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " "0x%x", params.auth_alg); } #ifdef CONFIG_SAE wpa_s->sme.sae_pmksa_caching = 0; if (wpa_key_mgmt_sae(ssid->key_mgmt)) { const u8 *rsn; struct wpa_ie_data ied; rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); if (!rsn) { wpa_dbg(wpa_s, MSG_DEBUG, "SAE enabled, but target BSS does not advertise RSN"); } else if (wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 && wpa_key_mgmt_sae(ied.key_mgmt)) { wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg"); params.auth_alg = WPA_AUTH_ALG_SAE; } else { wpa_dbg(wpa_s, MSG_DEBUG, "SAE enabled, but target BSS does not advertise SAE AKM for RSN"); } } #endif /* CONFIG_SAE */ for (i = 0; i < NUM_WEP_KEYS; i++) { if (ssid->wep_key_len[i]) params.wep_key[i] = ssid->wep_key[i]; params.wep_key_len[i] = ssid->wep_key_len[i]; } params.wep_tx_keyidx = ssid->wep_tx_keyidx; bssid_changed = !is_zero_ether_addr(wpa_s->bssid); os_memset(wpa_s->bssid, 0, ETH_ALEN); os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || wpa_bss_get_ie(bss, WLAN_EID_RSN)) && wpa_key_mgmt_wpa(ssid->key_mgmt)) { int try_opportunistic; try_opportunistic = (ssid->proactive_key_caching < 0 ? wpa_s->conf->okc : ssid->proactive_key_caching) && (ssid->proto & WPA_PROTO_RSN); if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, wpa_s->current_ssid, try_opportunistic) == 0) eapol_sm_notify_pmkid_attempt(wpa_s->eapol); wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie); if (wpa_supplicant_set_suites(wpa_s, bss, ssid, wpa_s->sme.assoc_req_ie, &wpa_s->sme.assoc_req_ie_len)) { wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA " "key management and encryption suites"); wpas_connect_work_done(wpa_s); return; } } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) { /* * Both WPA and non-WPA IEEE 802.1X enabled in configuration - * use non-WPA since the scan results did not indicate that the * AP is using WPA or WPA2. */ wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); wpa_s->sme.assoc_req_ie_len = 0; } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie); if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, wpa_s->sme.assoc_req_ie, &wpa_s->sme.assoc_req_ie_len)) { wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA " "key management and encryption suites (no " "scan results)"); wpas_connect_work_done(wpa_s); return; } #ifdef CONFIG_WPS } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { struct wpabuf *wps_ie; wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_s->sme.assoc_req_ie)) { wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie); os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie), wpa_s->sme.assoc_req_ie_len); } else wpa_s->sme.assoc_req_ie_len = 0; wpabuf_free(wps_ie); wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); #endif /* CONFIG_WPS */ } else { wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); wpa_s->sme.assoc_req_ie_len = 0; } #ifdef CONFIG_IEEE80211R ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) md = ie + 2; wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); if (md) { /* Prepare for the next transition */ wpa_ft_prepare_auth_request(wpa_s->wpa, ie); } if (md && wpa_key_mgmt_ft(ssid->key_mgmt)) { if (wpa_s->sme.assoc_req_ie_len + 5 < sizeof(wpa_s->sme.assoc_req_ie)) { struct rsn_mdie *mdie; u8 *pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len; *pos++ = WLAN_EID_MOBILITY_DOMAIN; *pos++ = sizeof(*mdie); mdie = (struct rsn_mdie *) pos; os_memcpy(mdie->mobility_domain, md, MOBILITY_DOMAIN_ID_LEN); mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN]; wpa_s->sme.assoc_req_ie_len += 5; } if (wpa_s->sme.ft_used && os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 && wpa_sm_has_ptk(wpa_s->wpa)) { wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT " "over-the-air"); params.auth_alg = WPA_AUTH_ALG_FT; params.ie = wpa_s->sme.ft_ies; params.ie_len = wpa_s->sme.ft_ies_len; } } #endif /* CONFIG_IEEE80211R */ #ifdef CONFIG_IEEE80211W wpa_s->sme.mfp = wpas_get_ssid_pmf(wpa_s, ssid); if (wpa_s->sme.mfp != NO_MGMT_FRAME_PROTECTION) { const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); struct wpa_ie_data _ie; if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 && _ie.capabilities & (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports " "MFP: require MFP"); wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED; } } #endif /* CONFIG_IEEE80211W */ #ifdef CONFIG_P2P if (wpa_s->global->p2p) { u8 *pos; size_t len; int res; pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len; len = sizeof(wpa_s->sme.assoc_req_ie) - wpa_s->sme.assoc_req_ie_len; res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, ssid->p2p_group); if (res >= 0) wpa_s->sme.assoc_req_ie_len += res; } #endif /* CONFIG_P2P */ #ifdef CONFIG_HS20 if (is_hs20_network(wpa_s, ssid, bss)) { struct wpabuf *hs20; hs20 = wpabuf_alloc(20); if (hs20) { int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid); size_t len; wpas_hs20_add_indication(hs20, pps_mo_id); len = sizeof(wpa_s->sme.assoc_req_ie) - wpa_s->sme.assoc_req_ie_len; if (wpabuf_len(hs20) <= len) { os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len, wpabuf_head(hs20), wpabuf_len(hs20)); wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20); } wpabuf_free(hs20); } } #endif /* CONFIG_HS20 */ ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab, sizeof(ext_capab)); if (ext_capab_len > 0) { u8 *pos = wpa_s->sme.assoc_req_ie; if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN) pos += 2 + pos[1]; os_memmove(pos + ext_capab_len, pos, wpa_s->sme.assoc_req_ie_len - (pos - wpa_s->sme.assoc_req_ie)); wpa_s->sme.assoc_req_ie_len += ext_capab_len; os_memcpy(pos, ext_capab, ext_capab_len); } if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) { struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]; size_t len; len = sizeof(wpa_s->sme.assoc_req_ie) - wpa_s->sme.assoc_req_ie_len; if (wpabuf_len(buf) <= len) { os_memcpy(wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len, wpabuf_head(buf), wpabuf_len(buf)); wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf); } } sme_auth_handle_rrm(wpa_s, bss); #ifdef CONFIG_SAE if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE && pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, ssid, 0) == 0) { wpa_dbg(wpa_s, MSG_DEBUG, "PMKSA cache entry found - try to use PMKSA caching instead of new SAE authentication"); params.auth_alg = WPA_AUTH_ALG_OPEN; wpa_s->sme.sae_pmksa_caching = 1; } if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE) { if (start) resp = sme_auth_build_sae_commit(wpa_s, ssid, bss->bssid); else resp = sme_auth_build_sae_confirm(wpa_s); if (resp == NULL) { wpas_connection_failed(wpa_s, bss->bssid, 1); return; } params.sae_data = wpabuf_head(resp); params.sae_data_len = wpabuf_len(resp); wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED; } #endif /* CONFIG_SAE */ wpa_supplicant_cancel_sched_scan(wpa_s); wpa_supplicant_cancel_scan(wpa_s); wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid), wpa_ssid_txt(params.ssid, params.ssid_len), params.freq); wpa_clear_keys(wpa_s, bss->bssid); wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING); 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); #ifdef CONFIG_P2P /* * If multi-channel concurrency is not supported, check for any * frequency conflict. In case of any frequency conflict, remove the * least prioritized connection. */ if (wpa_s->num_multichan_concurrent < 2) { int freq, num; num = get_shared_radio_freqs(wpa_s, &freq, 1); if (num > 0 && freq > 0 && freq != params.freq) { wpa_printf(MSG_DEBUG, "Conflicting frequency found (%d != %d)", freq, params.freq); if (wpas_p2p_handle_frequency_conflicts(wpa_s, params.freq, ssid) < 0) { wpas_connection_failed(wpa_s, bss->bssid, 0); wpa_supplicant_mark_disassoc(wpa_s); wpabuf_free(resp); wpas_connect_work_done(wpa_s); return; } } } #endif /* CONFIG_P2P */ if (skip_auth) { wpa_msg(wpa_s, MSG_DEBUG, "SME: Skip authentication step on reassoc-to-same-BSS"); wpabuf_free(resp); sme_associate(wpa_s, ssid->mode, bss->bssid, WLAN_AUTH_OPEN); return; } wpa_s->sme.auth_alg = params.auth_alg; if (wpa_drv_authenticate(wpa_s, ¶ms) < 0) { wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the " "driver failed"); wpas_connection_failed(wpa_s, bss->bssid, 1); wpa_supplicant_mark_disassoc(wpa_s); wpabuf_free(resp); wpas_connect_work_done(wpa_s); return; } eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s, NULL); /* * Association will be started based on the authentication event from * the driver. */ wpabuf_free(resp); }
static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, union wpa_event_data *data) { u8 bssid[ETH_ALEN]; int ft_completed; int bssid_changed; struct wpa_driver_capa capa; #ifdef CONFIG_AP if (wpa_s->ap_iface) { hostapd_notif_assoc(wpa_s->ap_iface->bss[0], data->assoc_info.addr, data->assoc_info.req_ies, data->assoc_info.req_ies_len); return; } #endif /* CONFIG_AP */ ft_completed = wpa_ft_is_completed(wpa_s->wpa); if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) return; wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); if (wpa_drv_get_bssid(wpa_s, bssid) >= 0 && os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" MACSTR, MAC2STR(bssid)); bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN); os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { wpa_clear_keys(wpa_s, bssid); } if (wpa_supplicant_select_config(wpa_s) < 0) { wpa_supplicant_disassociate( wpa_s, WLAN_REASON_DEAUTH_LEAVING); return; } if (wpa_s->current_ssid) { struct wpa_bss *bss = NULL; struct wpa_ssid *ssid = wpa_s->current_ssid; if (ssid->ssid_len > 0) bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); if (!bss) bss = wpa_bss_get_bssid(wpa_s, bssid); if (bss) wpa_s->current_bss = bss; } } #ifdef CONFIG_SME os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); wpa_s->sme.prev_bssid_set = 1; #endif /* CONFIG_SME */ wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); if (wpa_s->current_ssid) { /* When using scanning (ap_scan=1), SIM PC/SC interface can be * initialized before association, but for other modes, * initialize PC/SC here, if the current configuration needs * smartcard or SIM/USIM. */ wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); } wpa_sm_notify_assoc(wpa_s->wpa, bssid); if (wpa_s->l2) l2_packet_notify_auth_start(wpa_s->l2); /* * Set portEnabled first to FALSE in order to get EAP state machine out * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE * state machine may transit to AUTHENTICATING state based on obsolete * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to * AUTHENTICATED without ever giving chance to EAP state machine to * reset the state. */ if (!ft_completed) { eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); eapol_sm_notify_portValid(wpa_s->eapol, FALSE); } if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); /* 802.1X::portControl = Auto */ eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); wpa_s->eapol_received = 0; if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || (wpa_s->current_ssid && wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { wpa_supplicant_cancel_auth_timeout(wpa_s); wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); } else if (!ft_completed) { /* Timeout for receiving the first EAPOL packet */ wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); } wpa_supplicant_cancel_scan(wpa_s); if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { /* * We are done; the driver will take care of RSN 4-way * handshake. */ wpa_supplicant_cancel_auth_timeout(wpa_s); wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); eapol_sm_notify_portValid(wpa_s->eapol, TRUE); eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); } if (wpa_s->pending_eapol_rx) { struct os_time now, age; os_get_time(&now); os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); if (age.sec == 0 && age.usec < 100000 && os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 0) { wpa_printf(MSG_DEBUG, "Process pending EAPOL frame " "that was received just before association " "notification"); wpa_supplicant_rx_eapol( wpa_s, wpa_s->pending_eapol_rx_src, wpabuf_head(wpa_s->pending_eapol_rx), wpabuf_len(wpa_s->pending_eapol_rx)); } wpabuf_free(wpa_s->pending_eapol_rx); wpa_s->pending_eapol_rx = NULL; } 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); } }
void sme_authenticate(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, struct wpa_ssid *ssid) { struct wpa_driver_auth_params params; struct wpa_ssid *old_ssid; #ifdef CONFIG_IEEE80211R const u8 *ie; #endif /* CONFIG_IEEE80211R */ #ifdef CONFIG_IEEE80211R const u8 *md = NULL; #endif /* CONFIG_IEEE80211R */ int i, bssid_changed; if (bss == NULL) { wpa_printf(MSG_ERROR, "SME: No scan result available for the " "network"); return; } wpa_s->current_bss = bss; os_memset(¶ms, 0, sizeof(params)); wpa_s->reassociate = 0; params.freq = bss->freq; params.bssid = bss->bssid; params.ssid = bss->ssid; params.ssid_len = bss->ssid_len; if (wpa_s->sme.ssid_len != params.ssid_len || os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0) wpa_s->sme.prev_bssid_set = 0; wpa_s->sme.freq = params.freq; os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len); wpa_s->sme.ssid_len = params.ssid_len; params.auth_alg = WPA_AUTH_ALG_OPEN; #ifdef IEEE8021X_EAPOL if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { if (ssid->leap) { if (ssid->non_leap == 0) params.auth_alg = WPA_AUTH_ALG_LEAP; else params.auth_alg |= WPA_AUTH_ALG_LEAP; } } #endif /* IEEE8021X_EAPOL */ wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x", params.auth_alg); if (ssid->auth_alg) { params.auth_alg = ssid->auth_alg; wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x", params.auth_alg); } for (i = 0; i < NUM_WEP_KEYS; i++) { if (ssid->wep_key_len[i]) params.wep_key[i] = ssid->wep_key[i]; params.wep_key_len[i] = ssid->wep_key_len[i]; } params.wep_tx_keyidx = ssid->wep_tx_keyidx; bssid_changed = !is_zero_ether_addr(wpa_s->bssid); os_memset(wpa_s->bssid, 0, ETH_ALEN); os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); if (bssid_changed) wpas_notify_bssid_changed(wpa_s); if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || wpa_bss_get_ie(bss, WLAN_EID_RSN)) && (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_IEEE8021X_SHA256 | WPA_KEY_MGMT_PSK_SHA256))) { int try_opportunistic; try_opportunistic = ssid->proactive_key_caching && (ssid->proto & WPA_PROTO_RSN); if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, wpa_s->current_ssid, try_opportunistic) == 0) eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie); if (wpa_supplicant_set_suites(wpa_s, bss, ssid, wpa_s->sme.assoc_req_ie, &wpa_s->sme.assoc_req_ie_len)) { wpa_printf(MSG_WARNING, "SME: Failed to set WPA key " "management and encryption suites"); return; } } else if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie); if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, wpa_s->sme.assoc_req_ie, &wpa_s->sme.assoc_req_ie_len)) { wpa_printf(MSG_WARNING, "SME: Failed to set WPA key " "management and encryption suites (no scan " "results)"); return; } #ifdef CONFIG_WPS } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { struct wpabuf *wps_ie; wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_s->sme.assoc_req_ie)) { wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie); os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie), wpa_s->sme.assoc_req_ie_len); } else wpa_s->sme.assoc_req_ie_len = 0; wpabuf_free(wps_ie); wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); #endif /* CONFIG_WPS */ } else { wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); wpa_s->sme.assoc_req_ie_len = 0; } #ifdef CONFIG_IEEE80211R ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) md = ie + 2; wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); if (md) { /* Prepare for the next transition */ wpa_ft_prepare_auth_request(wpa_s->wpa, ie); } if (md && ssid->key_mgmt & (WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X)) { if (wpa_s->sme.assoc_req_ie_len + 5 < sizeof(wpa_s->sme.assoc_req_ie)) { struct rsn_mdie *mdie; u8 *pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len; *pos++ = WLAN_EID_MOBILITY_DOMAIN; *pos++ = sizeof(*mdie); mdie = (struct rsn_mdie *) pos; os_memcpy(mdie->mobility_domain, md, MOBILITY_DOMAIN_ID_LEN); mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN]; wpa_s->sme.assoc_req_ie_len += 5; } if (wpa_s->sme.ft_used && os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 && wpa_sm_has_ptk(wpa_s->wpa)) { wpa_printf(MSG_DEBUG, "SME: Trying to use FT " "over-the-air"); params.auth_alg = WPA_AUTH_ALG_FT; params.ie = wpa_s->sme.ft_ies; params.ie_len = wpa_s->sme.ft_ies_len; } } #endif /* CONFIG_IEEE80211R */ #ifdef CONFIG_IEEE80211W wpa_s->sme.mfp = ssid->ieee80211w; if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION) { const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); struct wpa_ie_data _ie; if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 && _ie.capabilities & (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: " "require MFP"); wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED; } } #endif /* CONFIG_IEEE80211W */ wpa_supplicant_cancel_scan(wpa_s); wpa_msg(wpa_s, MSG_INFO, "Trying to authenticate with " MACSTR " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid), wpa_ssid_txt(params.ssid, params.ssid_len), params.freq); wpa_clear_keys(wpa_s, bss->bssid); wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING); 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); wpa_s->sme.auth_alg = params.auth_alg; if (wpa_drv_authenticate(wpa_s, ¶ms) < 0) { wpa_msg(wpa_s, MSG_INFO, "Authentication request to the " "driver failed"); wpa_supplicant_req_scan(wpa_s, 1, 0); return; } /* TODO: add timeout on authentication */ /* * Association will be started based on the authentication event from * the driver. */ }