wpa_supplicant: ap_mlme.c Source File

00001 /*
00002  * hostapd / IEEE 802.11 MLME
00003  * Copyright 2003-2006, Jouni Malinen <j@w1.fi>
00004  * Copyright 2003-2004, Instant802 Networks, Inc.
00005  * Copyright 2005-2006, Devicescape Software, Inc.
00006  *
00007  * This program is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License version 2 as
00009  * published by the Free Software Foundation.
00010  *
00011  * Alternatively, this software may be distributed under the terms of BSD
00012  * license.
00013  *
00014  * See README and COPYING for more details.
00015  */
00016 
00017 #include "utils/includes.h"
00018 
00019 #include "utils/common.h"
00020 #include "common/ieee802_11_defs.h"
00021 #include "ieee802_11.h"
00022 #include "wpa_auth.h"
00023 #include "sta_info.h"
00024 #include "ap_mlme.h"
00025 
00026 
00027 #ifndef CONFIG_NO_HOSTAPD_LOGGER
00028 static const char * mlme_auth_alg_str(int alg)
00029 {
00030         switch (alg) {
00031         case WLAN_AUTH_OPEN:
00032                 return "OPEN_SYSTEM";
00033         case WLAN_AUTH_SHARED_KEY:
00034                 return "SHARED_KEY";
00035         case WLAN_AUTH_FT:
00036                 return "FT";
00037         }
00038 
00039         return "unknown";
00040 }
00041 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
00042 
00043 
00058 void mlme_authenticate_indication(struct hostapd_data *hapd,
00059                                   struct sta_info *sta)
00060 {
00061         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
00062                        HOSTAPD_LEVEL_DEBUG,
00063                        "MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
00064                        MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
00065         if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
00066                 mlme_deletekeys_request(hapd, sta);
00067 }
00068 
00069 
00082 void mlme_deauthenticate_indication(struct hostapd_data *hapd,
00083                                     struct sta_info *sta, u16 reason_code)
00084 {
00085         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
00086                        HOSTAPD_LEVEL_DEBUG,
00087                        "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
00088                        MAC2STR(sta->addr), reason_code);
00089         mlme_deletekeys_request(hapd, sta);
00090 }
00091 
00092 
00105 void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
00106 {
00107         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
00108                        HOSTAPD_LEVEL_DEBUG,
00109                        "MLME-ASSOCIATE.indication(" MACSTR ")",
00110                        MAC2STR(sta->addr));
00111         if (sta->auth_alg != WLAN_AUTH_FT)
00112                 mlme_deletekeys_request(hapd, sta);
00113 }
00114 
00115 
00130 void mlme_reassociate_indication(struct hostapd_data *hapd,
00131                                  struct sta_info *sta)
00132 {
00133         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
00134                        HOSTAPD_LEVEL_DEBUG,
00135                        "MLME-REASSOCIATE.indication(" MACSTR ")",
00136                        MAC2STR(sta->addr));
00137         if (sta->auth_alg != WLAN_AUTH_FT)
00138                 mlme_deletekeys_request(hapd, sta);
00139 }
00140 
00141 
00154 void mlme_disassociate_indication(struct hostapd_data *hapd,
00155                                   struct sta_info *sta, u16 reason_code)
00156 {
00157         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
00158                        HOSTAPD_LEVEL_DEBUG,
00159                        "MLME-DISASSOCIATE.indication(" MACSTR ", %d)",
00160                        MAC2STR(sta->addr), reason_code);
00161         mlme_deletekeys_request(hapd, sta);
00162 }
00163 
00164 
00165 void mlme_michaelmicfailure_indication(struct hostapd_data *hapd,
00166                                        const u8 *addr)
00167 {
00168         hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME,
00169                        HOSTAPD_LEVEL_DEBUG,
00170                        "MLME-MichaelMICFailure.indication(" MACSTR ")",
00171                        MAC2STR(addr));
00172 }
00173 
00174 
00175 void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta)
00176 {
00177         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
00178                        HOSTAPD_LEVEL_DEBUG,
00179                        "MLME-DELETEKEYS.request(" MACSTR ")",
00180                        MAC2STR(sta->addr));
00181 
00182         if (sta->wpa_sm)
00183                 wpa_remove_ptk(sta->wpa_sm);
00184 }