1 /* 2 * hostapd / IEEE 802.11 MLME 3 * Copyright 2003-2006, Jouni Malinen <j (at) w1.fi> 4 * Copyright 2003-2004, Instant802 Networks, Inc. 5 * Copyright 2005-2006, Devicescape Software, Inc. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * Alternatively, this software may be distributed under the terms of BSD 12 * license. 13 * 14 * See README and COPYING for more details. 15 */ 16 17 #include "utils/includes.h" 18 19 #include "utils/common.h" 20 #include "common/ieee802_11_defs.h" 21 #include "ieee802_11.h" 22 #include "wpa_auth.h" 23 #include "sta_info.h" 24 #include "ap_mlme.h" 25 26 27 #ifndef CONFIG_NO_HOSTAPD_LOGGER 28 static const char * mlme_auth_alg_str(int alg) 29 { 30 switch (alg) { 31 case WLAN_AUTH_OPEN: 32 return "OPEN_SYSTEM"; 33 case WLAN_AUTH_SHARED_KEY: 34 return "SHARED_KEY"; 35 case WLAN_AUTH_FT: 36 return "FT"; 37 } 38 39 return "unknown"; 40 } 41 #endif /* CONFIG_NO_HOSTAPD_LOGGER */ 42 43 44 /** 45 * mlme_authenticate_indication - Report the establishment of an authentication 46 * relationship with a specific peer MAC entity 47 * @hapd: BSS data 48 * @sta: peer STA data 49 * 50 * MLME calls this function as a result of the establishment of an 51 * authentication relationship with a specific peer MAC entity that 52 * resulted from an authentication procedure that was initiated by 53 * that specific peer MAC entity. 54 * 55 * PeerSTAAddress = sta->addr 56 * AuthenticationType = sta->auth_alg (WLAN_AUTH_OPEN / WLAN_AUTH_SHARED_KEY) 57 */ 58 void mlme_authenticate_indication(struct hostapd_data *hapd, 59 struct sta_info *sta) 60 { 61 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 62 HOSTAPD_LEVEL_DEBUG, 63 "MLME-AUTHENTICATE.indication(" MACSTR ", %s)", 64 MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg)); 65 if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP)) 66 mlme_deletekeys_request(hapd, sta); 67 } 68 69 70 /** 71 * mlme_deauthenticate_indication - Report the invalidation of an 72 * authentication relationship with a specific peer MAC entity 73 * @hapd: BSS data 74 * @sta: Peer STA data 75 * @reason_code: ReasonCode from Deauthentication frame 76 * 77 * MLME calls this function as a result of the invalidation of an 78 * authentication relationship with a specific peer MAC entity. 79 * 80 * PeerSTAAddress = sta->addr 81 */ 82 void mlme_deauthenticate_indication(struct hostapd_data *hapd, 83 struct sta_info *sta, u16 reason_code) 84 { 85 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 86 HOSTAPD_LEVEL_DEBUG, 87 "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)", 88 MAC2STR(sta->addr), reason_code); 89 mlme_deletekeys_request(hapd, sta); 90 } 91 92 93 /** 94 * mlme_associate_indication - Report the establishment of an association with 95 * a specific peer MAC entity 96 * @hapd: BSS data 97 * @sta: peer STA data 98 * 99 * MLME calls this function as a result of the establishment of an 100 * association with a specific peer MAC entity that resulted from an 101 * association procedure that was initiated by that specific peer MAC entity. 102 * 103 * PeerSTAAddress = sta->addr 104 */ 105 void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta) 106 { 107 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 108 HOSTAPD_LEVEL_DEBUG, 109 "MLME-ASSOCIATE.indication(" MACSTR ")", 110 MAC2STR(sta->addr)); 111 if (sta->auth_alg != WLAN_AUTH_FT) 112 mlme_deletekeys_request(hapd, sta); 113 } 114 115 116 /** 117 * mlme_reassociate_indication - Report the establishment of an reassociation 118 * with a specific peer MAC entity 119 * @hapd: BSS data 120 * @sta: peer STA data 121 * 122 * MLME calls this function as a result of the establishment of an 123 * reassociation with a specific peer MAC entity that resulted from a 124 * reassociation procedure that was initiated by that specific peer MAC entity. 125 * 126 * PeerSTAAddress = sta->addr 127 * 128 * sta->previous_ap contains the "Current AP" information from ReassocReq. 129 */ 130 void mlme_reassociate_indication(struct hostapd_data *hapd, 131 struct sta_info *sta) 132 { 133 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 134 HOSTAPD_LEVEL_DEBUG, 135 "MLME-REASSOCIATE.indication(" MACSTR ")", 136 MAC2STR(sta->addr)); 137 if (sta->auth_alg != WLAN_AUTH_FT) 138 mlme_deletekeys_request(hapd, sta); 139 } 140 141 142 /** 143 * mlme_disassociate_indication - Report disassociation with a specific peer 144 * MAC entity 145 * @hapd: BSS data 146 * @sta: Peer STA data 147 * @reason_code: ReasonCode from Disassociation frame 148 * 149 * MLME calls this function as a result of the invalidation of an association 150 * relationship with a specific peer MAC entity. 151 * 152 * PeerSTAAddress = sta->addr 153 */ 154 void mlme_disassociate_indication(struct hostapd_data *hapd, 155 struct sta_info *sta, u16 reason_code) 156 { 157 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 158 HOSTAPD_LEVEL_DEBUG, 159 "MLME-DISASSOCIATE.indication(" MACSTR ", %d)", 160 MAC2STR(sta->addr), reason_code); 161 mlme_deletekeys_request(hapd, sta); 162 } 163 164 165 void mlme_michaelmicfailure_indication(struct hostapd_data *hapd, 166 const u8 *addr) 167 { 168 hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME, 169 HOSTAPD_LEVEL_DEBUG, 170 "MLME-MichaelMICFailure.indication(" MACSTR ")", 171 MAC2STR(addr)); 172 } 173 174 175 void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta) 176 { 177 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 178 HOSTAPD_LEVEL_DEBUG, 179 "MLME-DELETEKEYS.request(" MACSTR ")", 180 MAC2STR(sta->addr)); 181 182 if (sta->wpa_sm) 183 wpa_remove_ptk(sta->wpa_sm); 184 } 185
