int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, const u8 *req_ies, size_t req_ies_len, int reassoc) { struct sta_info *sta; int new_assoc, res; struct ieee802_11_elems elems; const u8 *ie; size_t ielen; #ifdef CONFIG_IEEE80211R u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; u8 *p = buf; #endif /* CONFIG_IEEE80211R */ u16 reason = WLAN_REASON_UNSPECIFIED; u16 status = WLAN_STATUS_SUCCESS; const u8 *p2p_dev_addr = NULL; if (addr == NULL) { /* * This could potentially happen with unexpected event from the * driver wrapper. This was seen at least in one case where the * driver ended up being set to station mode while hostapd was * running, so better make sure we stop processing such an * event here. */ wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with " "no address"); return -1; } random_add_randomness(addr, ETH_ALEN); hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_INFO, "associated"); ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0); if (elems.wps_ie) { ie = elems.wps_ie - 2; ielen = elems.wps_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq"); } else if (elems.rsn_ie) { ie = elems.rsn_ie - 2; ielen = elems.rsn_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq"); } else if (elems.wpa_ie) { ie = elems.wpa_ie - 2; ielen = elems.wpa_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq"); #ifdef CONFIG_HS20 } else if (elems.osen) { ie = elems.osen - 2; ielen = elems.osen_len + 2; wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq"); #endif /* CONFIG_HS20 */ } else { ie = NULL; ielen = 0; wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in " "(Re)AssocReq"); } sta = ap_get_sta(hapd, addr); if (sta) { ap_sta_no_session_timeout(hapd, sta); accounting_sta_stop(hapd, sta); /* * Make sure that the previously registered inactivity timer * will not remove the STA immediately. */ sta->timeout_next = STA_NULLFUNC; } else { sta = ap_sta_add(hapd, addr); if (sta == NULL) { hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_AP_BUSY); return -1; } } sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); #ifdef CONFIG_P2P if (elems.p2p) { wpabuf_free(sta->p2p_ie); sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, P2P_IE_VENDOR_TYPE); if (sta->p2p_ie) p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); } #endif /* CONFIG_P2P */ #ifdef CONFIG_IEEE80211N #ifdef NEED_AP_MLME if (elems.ht_capabilities && elems.ht_capabilities_len >= sizeof(struct ieee80211_ht_capabilities) && (hapd->iface->conf->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) { struct ieee80211_ht_capabilities *ht_cap = (struct ieee80211_ht_capabilities *) elems.ht_capabilities; if (le_to_host16(ht_cap->ht_capabilities_info) & HT_CAP_INFO_40MHZ_INTOLERANT) ht40_intolerant_add(hapd->iface, sta); } #endif /* NEED_AP_MLME */ #endif /* CONFIG_IEEE80211N */ #ifdef CONFIG_INTERWORKING if (elems.ext_capab && elems.ext_capab_len > 4) { if (elems.ext_capab[4] & 0x01) sta->qos_map_enabled = 1; } #endif /* CONFIG_INTERWORKING */ #ifdef CONFIG_HS20 wpabuf_free(sta->hs20_ie); if (elems.hs20 && elems.hs20_len > 4) { sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, elems.hs20_len - 4); } else sta->hs20_ie = NULL; #endif /* CONFIG_HS20 */ #ifdef CONFIG_MTK_P2P if (elems.wfd && (elems.wfd_len > 0)) { struct p2p_message msg; wpabuf_free(sta->wfd_ie); sta->wfd_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, WFD_IE_VENDOR_TYPE); if(p2p_parse_wfd_ie(sta->wfd_ie,&msg)==0) { wpa_printf(MSG_DEBUG, "Change our WFD role and peer wfd_ie"); if(hapd->p2p) { wpa_printf(MSG_DEBUG, "Change our WFD role and peer wfd_ie 2"); wfd_process_request_and_switch_role(hapd->p2p, &msg, 0); } } } #endif /* CONFIG_MTK_P2P */ if (hapd->conf->wpa) { if (ie == NULL || ielen == 0) { #ifdef CONFIG_WPS if (hapd->conf->wps_state) { wpa_printf(MSG_DEBUG, "STA did not include " "WPA/RSN IE in (Re)Association " "Request - possible WPS use"); sta->flags |= WLAN_STA_MAYBE_WPS; goto skip_wpa_check; } #endif /* CONFIG_WPS */ wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA"); return -1; } #ifdef CONFIG_WPS if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 && os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) { struct wpabuf *wps; sta->flags |= WLAN_STA_WPS; wps = ieee802_11_vendor_ie_concat(ie, ielen, WPS_IE_VENDOR_TYPE); if (wps) { if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA " "supports WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } wpabuf_free(wps); } goto skip_wpa_check; } #endif /* CONFIG_WPS */ if (sta->wpa_sm == NULL) sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, p2p_dev_addr); if (sta->wpa_sm == NULL) { wpa_printf(MSG_ERROR, "Failed to initialize WPA state " "machine"); return -1; } res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, ie, ielen, elems.mdie, elems.mdie_len); if (res != WPA_IE_OK) { wpa_printf(MSG_DEBUG, "WPA/RSN information element " "rejected? (res %u)", res); wpa_hexdump(MSG_DEBUG, "IE", ie, ielen); if (res == WPA_INVALID_GROUP) { reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; } else if (res == WPA_INVALID_PAIRWISE) { reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID; status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; } else if (res == WPA_INVALID_AKMP) { reason = WLAN_REASON_AKMP_NOT_VALID; status = WLAN_STATUS_AKMP_NOT_VALID; } #ifdef CONFIG_IEEE80211W else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) { reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; } #endif /* CONFIG_IEEE80211W */ else { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; } goto fail; } #ifdef CONFIG_IEEE80211W if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && sta->sa_query_count > 0) ap_check_sa_query_timeout(hapd, sta); if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && (sta->auth_alg != WLAN_AUTH_FT)) { /* * STA has already been associated with MFP and SA * Query timeout has not been reached. Reject the * association attempt temporarily and start SA Query, * if one is not pending. */ if (sta->sa_query_count == 0) ap_sta_start_sa_query(hapd, sta); #ifdef CONFIG_IEEE80211R status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; p = hostapd_eid_assoc_comeback_time(hapd, sta, p); hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); #endif /* CONFIG_IEEE80211R */ return 0; } if (wpa_auth_uses_mfp(sta->wpa_sm)) sta->flags |= WLAN_STA_MFP; else sta->flags &= ~WLAN_STA_MFP; #endif /* CONFIG_IEEE80211W */ #ifdef CONFIG_IEEE80211R if (sta->auth_alg == WLAN_AUTH_FT) { status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies, req_ies_len); if (status != WLAN_STATUS_SUCCESS) { if (status == WLAN_STATUS_INVALID_PMKID) reason = WLAN_REASON_INVALID_IE; if (status == WLAN_STATUS_INVALID_MDIE) reason = WLAN_REASON_INVALID_IE; if (status == WLAN_STATUS_INVALID_FTIE) reason = WLAN_REASON_INVALID_IE; goto fail; } } #endif /* CONFIG_IEEE80211R */ } else if (hapd->conf->wps_state) { #ifdef CONFIG_WPS struct wpabuf *wps; if (req_ies) wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, WPS_IE_VENDOR_TYPE); else wps = NULL; #ifdef CONFIG_WPS_STRICT if (wps && wps_validate_assoc_req(wps) < 0) { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; wpabuf_free(wps); goto fail; } #endif /* CONFIG_WPS_STRICT */ if (wps) { sta->flags |= WLAN_STA_WPS; if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA supports " "WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } } else sta->flags |= WLAN_STA_MAYBE_WPS; wpabuf_free(wps); #endif /* CONFIG_WPS */ #ifdef CONFIG_HS20 } else if (hapd->conf->osen) { if (elems.osen == NULL) { hostapd_logger( hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_INFO, "No HS 2.0 OSEN element in association request"); return WLAN_STATUS_INVALID_IE; } wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association"); if (sta->wpa_sm == NULL) sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL); if (sta->wpa_sm == NULL) { wpa_printf(MSG_WARNING, "Failed to initialize WPA " "state machine"); return WLAN_STATUS_UNSPECIFIED_FAILURE; } if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm, elems.osen - 2, elems.osen_len + 2) < 0) return WLAN_STATUS_INVALID_IE; #endif /* CONFIG_HS20 */ } #ifdef CONFIG_WPS skip_wpa_check: #endif /* CONFIG_WPS */ #ifdef CONFIG_IEEE80211R p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf), sta->auth_alg, req_ies, req_ies_len); hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); if (sta->auth_alg == WLAN_AUTH_FT) ap_sta_set_authorized(hapd, sta, 1); #else /* CONFIG_IEEE80211R */ /* Keep compiler silent about unused variables */ if (status) { } #endif /* CONFIG_IEEE80211R */ new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0; sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE; hostapd_set_sta_flags(hapd, sta); if (reassoc && (sta->auth_alg == WLAN_AUTH_FT)) wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); else wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); hostapd_new_assoc_sta(hapd, sta, !new_assoc); /* [ALPS00326459][6575JB][BSP Package][6577JB][CTS Verifier 4.1_r2][MT6577_PHONE][changelist 996001] GROUP JOIN 2 cases fail in Wi-Fi Direct Test */ #if defined(CONFIG_MTK_P2P) || defined(CONFIG_HOTSPOT_MGR_SUPPORT) if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) || sta->auth_alg == WLAN_AUTH_FT) { /* * Open, static WEP, or FT protocol; no separate authorization * step. */ wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr)); } #endif /* CONFIG_MTK_P2P || CONFIG_HOTSPOT_MGR_SUPPORT */ ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); #ifdef CONFIG_P2P if (req_ies) { p2p_group_notif_assoc(hapd->p2p_group, sta->addr, req_ies, req_ies_len); } #endif /* CONFIG_P2P */ return 0; fail: #ifdef CONFIG_IEEE80211R hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); #endif /* CONFIG_IEEE80211R */ hostapd_drv_sta_disassoc(hapd, sta->addr, reason); ap_free_sta(hapd, sta); return -1; }
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, const u8 *req_ies, size_t req_ies_len, int reassoc) { struct sta_info *sta; int new_assoc, res; struct ieee802_11_elems elems; const u8 *ie; size_t ielen; #ifdef CONFIG_IEEE80211R u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; u8 *p = buf; #endif /* CONFIG_IEEE80211R */ u16 reason = WLAN_REASON_UNSPECIFIED; u16 status = WLAN_STATUS_SUCCESS; const u8 *p2p_dev_addr = NULL; if (addr == NULL) { /* * This could potentially happen with unexpected event from the * driver wrapper. This was seen at least in one case where the * driver ended up being set to station mode while hostapd was * running, so better make sure we stop processing such an * event here. */ wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with " "no address"); return -1; } random_add_randomness(addr, ETH_ALEN); hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_INFO, "associated"); ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0); if (elems.wps_ie) { ie = elems.wps_ie - 2; ielen = elems.wps_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq"); } else if (elems.rsn_ie) { ie = elems.rsn_ie - 2; ielen = elems.rsn_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq"); } else if (elems.wpa_ie) { ie = elems.wpa_ie - 2; ielen = elems.wpa_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq"); } else { ie = NULL; ielen = 0; wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in " "(Re)AssocReq"); } sta = ap_get_sta(hapd, addr); if (sta) { ap_sta_no_session_timeout(hapd, sta); accounting_sta_stop(hapd, sta); /* * Make sure that the previously registered inactivity timer * will not remove the STA immediately. */ sta->timeout_next = STA_NULLFUNC; } else { sta = ap_sta_add(hapd, addr); if (sta == NULL) { hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_AP_BUSY); return -1; } } sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); #ifdef CONFIG_P2P if (elems.p2p) { wpabuf_free(sta->p2p_ie); sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, P2P_IE_VENDOR_TYPE); if (sta->p2p_ie) p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); } #endif /* CONFIG_P2P */ #ifdef CONFIG_INTERWORKING if (elems.ext_capab && elems.ext_capab_len > 4) { if (elems.ext_capab[4] & 0x01) sta->qos_map_enabled = 1; } #endif /* CONFIG_INTERWORKING */ #ifdef CONFIG_HS20 wpabuf_free(sta->hs20_ie); if (elems.hs20 && elems.hs20_len > 4) { sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, elems.hs20_len - 4); } else sta->hs20_ie = NULL; #endif /* CONFIG_HS20 */ if (hapd->conf->wpa) { if (ie == NULL || ielen == 0) { #ifdef CONFIG_WPS if (hapd->conf->wps_state) { wpa_printf(MSG_DEBUG, "STA did not include " "WPA/RSN IE in (Re)Association " "Request - possible WPS use"); sta->flags |= WLAN_STA_MAYBE_WPS; goto skip_wpa_check; } #endif /* CONFIG_WPS */ wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA"); return -1; } #ifdef CONFIG_WPS if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 && os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) { struct wpabuf *wps; sta->flags |= WLAN_STA_WPS; wps = ieee802_11_vendor_ie_concat(ie, ielen, WPS_IE_VENDOR_TYPE); if (wps) { if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA " "supports WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } wpabuf_free(wps); } goto skip_wpa_check; } #endif /* CONFIG_WPS */ if (sta->wpa_sm == NULL) sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, p2p_dev_addr); if (sta->wpa_sm == NULL) { wpa_printf(MSG_ERROR, "Failed to initialize WPA state " "machine"); return -1; } res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, ie, ielen, elems.mdie, elems.mdie_len); if (res != WPA_IE_OK) { wpa_printf(MSG_DEBUG, "WPA/RSN information element " "rejected? (res %u)", res); wpa_hexdump(MSG_DEBUG, "IE", ie, ielen); if (res == WPA_INVALID_GROUP) { reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; } else if (res == WPA_INVALID_PAIRWISE) { reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID; status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; } else if (res == WPA_INVALID_AKMP) { reason = WLAN_REASON_AKMP_NOT_VALID; status = WLAN_STATUS_AKMP_NOT_VALID; } #ifdef CONFIG_IEEE80211W else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) { reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; } #endif /* CONFIG_IEEE80211W */ else { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; } goto fail; } #ifdef CONFIG_IEEE80211W if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && sta->sa_query_count > 0) ap_check_sa_query_timeout(hapd, sta); if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && (sta->auth_alg != WLAN_AUTH_FT)) { /* * STA has already been associated with MFP and SA * Query timeout has not been reached. Reject the * association attempt temporarily and start SA Query, * if one is not pending. */ if (sta->sa_query_count == 0) ap_sta_start_sa_query(hapd, sta); #ifdef CONFIG_IEEE80211R status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; p = hostapd_eid_assoc_comeback_time(hapd, sta, p); hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); #endif /* CONFIG_IEEE80211R */ return 0; } if (wpa_auth_uses_mfp(sta->wpa_sm)) sta->flags |= WLAN_STA_MFP; else sta->flags &= ~WLAN_STA_MFP; #endif /* CONFIG_IEEE80211W */ #ifdef CONFIG_IEEE80211R if (sta->auth_alg == WLAN_AUTH_FT) { status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies, req_ies_len); if (status != WLAN_STATUS_SUCCESS) { if (status == WLAN_STATUS_INVALID_PMKID) reason = WLAN_REASON_INVALID_IE; if (status == WLAN_STATUS_INVALID_MDIE) reason = WLAN_REASON_INVALID_IE; if (status == WLAN_STATUS_INVALID_FTIE) reason = WLAN_REASON_INVALID_IE; goto fail; } } #endif /* CONFIG_IEEE80211R */ } else if (hapd->conf->wps_state) { #ifdef CONFIG_WPS struct wpabuf *wps; if (req_ies) wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, WPS_IE_VENDOR_TYPE); else wps = NULL; #ifdef CONFIG_WPS_STRICT if (wps && wps_validate_assoc_req(wps) < 0) { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; wpabuf_free(wps); goto fail; } #endif /* CONFIG_WPS_STRICT */ if (wps) { sta->flags |= WLAN_STA_WPS; if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA supports " "WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } } else sta->flags |= WLAN_STA_MAYBE_WPS; wpabuf_free(wps); #endif /* CONFIG_WPS */ } #ifdef CONFIG_WPS skip_wpa_check: #endif /* CONFIG_WPS */ #ifdef CONFIG_IEEE80211R p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf), sta->auth_alg, req_ies, req_ies_len); hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); #else /* CONFIG_IEEE80211R */ /* Keep compiler silent about unused variables */ if (status) { } #endif /* CONFIG_IEEE80211R */ new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0; sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; if (reassoc && (sta->auth_alg == WLAN_AUTH_FT)) wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); else wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); hostapd_new_assoc_sta(hapd, sta, !new_assoc); ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); #ifdef CONFIG_P2P if (req_ies) { p2p_group_notif_assoc(hapd->p2p_group, sta->addr, req_ies, req_ies_len); } #endif /* CONFIG_P2P */ return 0; fail: #ifdef CONFIG_IEEE80211R hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); #endif /* CONFIG_IEEE80211R */ hostapd_drv_sta_disassoc(hapd, sta->addr, reason); ap_free_sta(hapd, sta); return -1; }
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, const u8 *req_ies, size_t req_ies_len, int reassoc) { struct sta_info *sta; int new_assoc, res; struct ieee802_11_elems elems; const u8 *ie; size_t ielen; #ifdef CONFIG_IEEE80211R u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; u8 *p = buf; size_t len = 0; #endif /* CONFIG_IEEE80211R */ int resp = WLAN_STATUS_SUCCESS; if (addr == NULL) { /* * This could potentially happen with unexpected event from the * driver wrapper. This was seen at least in one case where the * driver ended up being set to station mode while hostapd was * running, so better make sure we stop processing such an * event here. */ wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with " "no address"); return -1; } random_add_randomness(addr, ETH_ALEN); hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_INFO, "associated"); ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0); if (elems.wps_ie) { ie = elems.wps_ie - 2; ielen = elems.wps_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq"); } else if (elems.rsn_ie) { ie = elems.rsn_ie - 2; ielen = elems.rsn_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq"); } else if (elems.wpa_ie) { ie = elems.wpa_ie - 2; ielen = elems.wpa_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq"); } else { ie = NULL; ielen = 0; wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in " "(Re)AssocReq"); } sta = ap_get_sta(hapd, addr); if (sta) { accounting_sta_stop(hapd, sta); } else { sta = ap_sta_add(hapd, addr); if (sta == NULL) return -1; } sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); #ifdef CONFIG_P2P if (elems.p2p) { wpabuf_free(sta->p2p_ie); sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, P2P_IE_VENDOR_TYPE); } #endif /* CONFIG_P2P */ if (hapd->conf->wpa) { if (ie == NULL || ielen == 0) { if (hapd->conf->wps_state) { wpa_printf(MSG_DEBUG, "STA did not include " "WPA/RSN IE in (Re)Association " "Request - possible WPS use"); sta->flags |= WLAN_STA_MAYBE_WPS; goto skip_wpa_check; } wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA"); return -1; } if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 && os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) { struct wpabuf *wps; sta->flags |= WLAN_STA_WPS; wps = ieee802_11_vendor_ie_concat(ie, ielen, WPS_IE_VENDOR_TYPE); if (wps) { if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA " "supports WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } wpabuf_free(wps); } goto skip_wpa_check; } if (sta->wpa_sm == NULL) sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr); if (sta->wpa_sm == NULL) { wpa_printf(MSG_ERROR, "Failed to initialize WPA state " "machine"); return -1; } res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, ie, ielen, elems.mdie, elems.mdie_len); if (res != WPA_IE_OK) { wpa_printf(MSG_DEBUG, "WPA/RSN information element " "rejected? (res %u)", res); wpa_hexdump(MSG_DEBUG, "IE", ie, ielen); if (res == WPA_INVALID_GROUP) resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID; else if (res == WPA_INVALID_PAIRWISE) resp = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID; else if (res == WPA_INVALID_AKMP) resp = WLAN_REASON_AKMP_NOT_VALID; #ifdef CONFIG_IEEE80211W else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) resp = WLAN_REASON_INVALID_IE; else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID; #endif /* CONFIG_IEEE80211W */ else resp = WLAN_REASON_INVALID_IE; goto fail; } #ifdef CONFIG_IEEE80211R if (sta->auth_alg == WLAN_AUTH_FT) { resp = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies, req_ies_len); if (resp != WLAN_STATUS_SUCCESS) goto fail; } #endif /* CONFIG_IEEE80211R */ } else if (hapd->conf->wps_state) { struct wpabuf *wps; wps = ieee802_11_vendor_ie_concat(ie, ielen, WPS_IE_VENDOR_TYPE); #ifdef CONFIG_WPS_STRICT if (ie) { if (wps && wps_validate_assoc_req(wps) < 0) { resp = WLAN_REASON_INVALID_IE; wpabuf_free(wps); goto fail; } } #endif /* CONFIG_WPS_STRICT */ if (ie && ielen > 4 && ie[0] == 0xdd && ie[1] >= 4 && os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) { sta->flags |= WLAN_STA_WPS; if (wps && wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA supports " "WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } } else sta->flags |= WLAN_STA_MAYBE_WPS; wpabuf_free(wps); } skip_wpa_check: #ifdef CONFIG_IEEE80211R p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf), sta->auth_alg, req_ies, req_ies_len); len = p - buf; hostapd_sta_assoc(hapd, addr, reassoc, 0, buf, len); #endif /* CONFIG_IEEE80211R */ new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0; sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; if (reassoc && (sta->auth_alg == WLAN_AUTH_FT)) wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); else wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); hostapd_new_assoc_sta(hapd, sta, !new_assoc); ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); #ifdef CONFIG_P2P p2p_group_notif_assoc(hapd->p2p_group, sta->addr, req_ies, req_ies_len); #endif /* CONFIG_P2P */ return 0; fail: #ifdef CONFIG_IEEE80211R hostapd_sta_assoc(hapd, addr, reassoc, resp, buf, len); #endif /* CONFIG_IEEE80211R */ hostapd_drv_sta_disassoc(hapd, sta->addr, resp); ap_free_sta(hapd, sta); return -1; }
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, const u8 *req_ies, size_t req_ies_len, int reassoc) { struct sta_info *sta; int new_assoc, res; struct ieee802_11_elems elems; const u8 *ie; size_t ielen; #if defined(CONFIG_IEEE80211R) || defined(CONFIG_IEEE80211W) u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; u8 *p = buf; #endif /* CONFIG_IEEE80211R || CONFIG_IEEE80211W */ u16 reason = WLAN_REASON_UNSPECIFIED; u16 status = WLAN_STATUS_SUCCESS; const u8 *p2p_dev_addr = NULL; if (addr == NULL) { /* * This could potentially happen with unexpected event from the * driver wrapper. This was seen at least in one case where the * driver ended up being set to station mode while hostapd was * running, so better make sure we stop processing such an * event here. */ wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with no address"); return -1; } random_add_randomness(addr, ETH_ALEN); hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_INFO, "associated"); ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0); if (elems.wps_ie) { ie = elems.wps_ie - 2; ielen = elems.wps_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq"); } else if (elems.rsn_ie) { ie = elems.rsn_ie - 2; ielen = elems.rsn_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq"); } else if (elems.wpa_ie) { ie = elems.wpa_ie - 2; ielen = elems.wpa_ie_len + 2; wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq"); #ifdef CONFIG_HS20 } else if (elems.osen) { ie = elems.osen - 2; ielen = elems.osen_len + 2; wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq"); #endif /* CONFIG_HS20 */ } else { ie = NULL; ielen = 0; wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in (Re)AssocReq"); } sta = ap_get_sta(hapd, addr); if (sta) { ap_sta_no_session_timeout(hapd, sta); accounting_sta_stop(hapd, sta); /* * Make sure that the previously registered inactivity timer * will not remove the STA immediately. */ sta->timeout_next = STA_NULLFUNC; } else { sta = ap_sta_add(hapd, addr); if (sta == NULL) { hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_AP_BUSY); return -1; } } sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); /* * ACL configurations to the drivers (implementing AP SME and ACL * offload) without hostapd's knowledge, can result in a disconnection * though the driver accepts the connection. Skip the hostapd check for * ACL if the driver supports ACL offload to avoid potentially * conflicting ACL rules. */ if (hapd->iface->drv_max_acl_mac_addrs == 0 && hostapd_check_acl(hapd, addr, NULL) != HOSTAPD_ACL_ACCEPT) { wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect", MAC2STR(addr)); reason = WLAN_REASON_UNSPECIFIED; goto fail; } #ifdef CONFIG_P2P if (elems.p2p) { wpabuf_free(sta->p2p_ie); sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, P2P_IE_VENDOR_TYPE); if (sta->p2p_ie) p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie); } #endif /* CONFIG_P2P */ #ifdef CONFIG_IEEE80211N #ifdef NEED_AP_MLME if (elems.ht_capabilities && (hapd->iface->conf->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) { struct ieee80211_ht_capabilities *ht_cap = (struct ieee80211_ht_capabilities *) elems.ht_capabilities; if (le_to_host16(ht_cap->ht_capabilities_info) & HT_CAP_INFO_40MHZ_INTOLERANT) ht40_intolerant_add(hapd->iface, sta); } #endif /* NEED_AP_MLME */ #endif /* CONFIG_IEEE80211N */ #ifdef CONFIG_INTERWORKING if (elems.ext_capab && elems.ext_capab_len > 4) { if (elems.ext_capab[4] & 0x01) sta->qos_map_enabled = 1; } #endif /* CONFIG_INTERWORKING */ #ifdef CONFIG_HS20 wpabuf_free(sta->hs20_ie); if (elems.hs20 && elems.hs20_len > 4) { sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4, elems.hs20_len - 4); } else sta->hs20_ie = NULL; #endif /* CONFIG_HS20 */ #ifdef CONFIG_FST wpabuf_free(sta->mb_ies); if (hapd->iface->fst) sta->mb_ies = mb_ies_by_info(&elems.mb_ies); else sta->mb_ies = NULL; #endif /* CONFIG_FST */ mbo_ap_check_sta_assoc(hapd, sta, &elems); ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes, elems.supp_op_classes_len); if (hapd->conf->wpa) { if (ie == NULL || ielen == 0) { #ifdef CONFIG_WPS if (hapd->conf->wps_state) { wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in (Re)Association Request - possible WPS use"); sta->flags |= WLAN_STA_MAYBE_WPS; goto skip_wpa_check; } #endif /* CONFIG_WPS */ wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA"); return -1; } #ifdef CONFIG_WPS if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 && os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) { struct wpabuf *wps; sta->flags |= WLAN_STA_WPS; wps = ieee802_11_vendor_ie_concat(ie, ielen, WPS_IE_VENDOR_TYPE); if (wps) { if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } wpabuf_free(wps); } goto skip_wpa_check; } #endif /* CONFIG_WPS */ if (sta->wpa_sm == NULL) sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, p2p_dev_addr); if (sta->wpa_sm == NULL) { wpa_printf(MSG_ERROR, "Failed to initialize WPA state machine"); return -1; } res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, ie, ielen, elems.mdie, elems.mdie_len); if (res != WPA_IE_OK) { wpa_printf(MSG_DEBUG, "WPA/RSN information element rejected? (res %u)", res); wpa_hexdump(MSG_DEBUG, "IE", ie, ielen); if (res == WPA_INVALID_GROUP) { reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; } else if (res == WPA_INVALID_PAIRWISE) { reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID; status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; } else if (res == WPA_INVALID_AKMP) { reason = WLAN_REASON_AKMP_NOT_VALID; status = WLAN_STATUS_AKMP_NOT_VALID; } #ifdef CONFIG_IEEE80211W else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) { reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; } #endif /* CONFIG_IEEE80211W */ else { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; } goto fail; } #ifdef CONFIG_IEEE80211W if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && sta->sa_query_count > 0) ap_check_sa_query_timeout(hapd, sta); if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out && (sta->auth_alg != WLAN_AUTH_FT)) { /* * STA has already been associated with MFP and SA * Query timeout has not been reached. Reject the * association attempt temporarily and start SA Query, * if one is not pending. */ if (sta->sa_query_count == 0) ap_sta_start_sa_query(hapd, sta); status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY; p = hostapd_eid_assoc_comeback_time(hapd, sta, p); hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); return 0; } if (wpa_auth_uses_mfp(sta->wpa_sm)) sta->flags |= WLAN_STA_MFP; else sta->flags &= ~WLAN_STA_MFP; #endif /* CONFIG_IEEE80211W */ #ifdef CONFIG_IEEE80211R if (sta->auth_alg == WLAN_AUTH_FT) { status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies, req_ies_len); if (status != WLAN_STATUS_SUCCESS) { if (status == WLAN_STATUS_INVALID_PMKID) reason = WLAN_REASON_INVALID_IE; if (status == WLAN_STATUS_INVALID_MDIE) reason = WLAN_REASON_INVALID_IE; if (status == WLAN_STATUS_INVALID_FTIE) reason = WLAN_REASON_INVALID_IE; goto fail; } } #endif /* CONFIG_IEEE80211R */ } else if (hapd->conf->wps_state) { #ifdef CONFIG_WPS struct wpabuf *wps; if (req_ies) wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, WPS_IE_VENDOR_TYPE); else wps = NULL; #ifdef CONFIG_WPS_STRICT if (wps && wps_validate_assoc_req(wps) < 0) { reason = WLAN_REASON_INVALID_IE; status = WLAN_STATUS_INVALID_IE; wpabuf_free(wps); goto fail; } #endif /* CONFIG_WPS_STRICT */ if (wps) { sta->flags |= WLAN_STA_WPS; if (wps_is_20(wps)) { wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0"); sta->flags |= WLAN_STA_WPS2; } } else sta->flags |= WLAN_STA_MAYBE_WPS; wpabuf_free(wps); #endif /* CONFIG_WPS */ #ifdef CONFIG_HS20 } else if (hapd->conf->osen) { if (elems.osen == NULL) { hostapd_logger( hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_INFO, "No HS 2.0 OSEN element in association request"); return WLAN_STATUS_INVALID_IE; } wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association"); if (sta->wpa_sm == NULL) sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL); if (sta->wpa_sm == NULL) { wpa_printf(MSG_WARNING, "Failed to initialize WPA state machine"); return WLAN_STATUS_UNSPECIFIED_FAILURE; } if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm, elems.osen - 2, elems.osen_len + 2) < 0) return WLAN_STATUS_INVALID_IE; #endif /* CONFIG_HS20 */ } #ifdef CONFIG_MBO if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) && elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) && hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) { wpa_printf(MSG_INFO, "MBO: Reject WPA2 association without PMF"); return WLAN_STATUS_UNSPECIFIED_FAILURE; } #endif /* CONFIG_MBO */ #ifdef CONFIG_WPS skip_wpa_check: #endif /* CONFIG_WPS */ #ifdef CONFIG_IEEE80211R p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf), sta->auth_alg, req_ies, req_ies_len); hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); if (sta->auth_alg == WLAN_AUTH_FT) ap_sta_set_authorized(hapd, sta, 1); #else /* CONFIG_IEEE80211R */ /* Keep compiler silent about unused variables */ if (status) { } #endif /* CONFIG_IEEE80211R */ new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0; sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE; hostapd_set_sta_flags(hapd, sta); if (reassoc && (sta->auth_alg == WLAN_AUTH_FT)) wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); else wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); hostapd_new_assoc_sta(hapd, sta, !new_assoc); ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); #ifdef CONFIG_P2P if (req_ies) { p2p_group_notif_assoc(hapd->p2p_group, sta->addr, req_ies, req_ies_len); } #endif /* CONFIG_P2P */ return 0; fail: #ifdef CONFIG_IEEE80211R hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); #endif /* CONFIG_IEEE80211R */ hostapd_drv_sta_disassoc(hapd, sta->addr, reason); ap_free_sta(hapd, sta); return -1; }