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 software may be distributed under the terms of the BSD license. 8 * See README for more details. 9 */ 10 11 #include "utils/includes.h" 12 13 #include "utils/common.h" 14 #include "common/ieee802_11_defs.h" 15 #include "ieee802_11.h" 16 #include "wpa_auth.h" 17 #include "sta_info.h" 18 #include "ap_mlme.h" 19 #include "hostapd.h" 20 21 22 #ifndef CONFIG_NO_HOSTAPD_LOGGER 23 static const char * mlme_auth_alg_str(int alg) 24 { 25 switch (alg) { 26 case WLAN_AUTH_OPEN: 27 return "OPEN_SYSTEM"; 28 case WLAN_AUTH_SHARED_KEY: 29 return "SHARED_KEY"; 30 case WLAN_AUTH_FT: 31 return "FT"; 32 } 33 34 return "unknown"; 35 } 36 #endif /* CONFIG_NO_HOSTAPD_LOGGER */ 37 38 39 /** 40 * mlme_authenticate_indication - Report the establishment of an authentication 41 * relationship with a specific peer MAC entity 42 * @hapd: BSS data 43 * @sta: peer STA data 44 * 45 * MLME calls this function as a result of the establishment of an 46 * authentication relationship with a specific peer MAC entity that 47 * resulted from an authentication procedure that was initiated by 48 * that specific peer MAC entity. 49 * 50 * PeerSTAAddress = sta->addr 51 * AuthenticationType = sta->auth_alg (WLAN_AUTH_OPEN / WLAN_AUTH_SHARED_KEY) 52 */ 53 void mlme_authenticate_indication(struct hostapd_data *hapd, 54 struct sta_info *sta) 55 { 56 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 57 HOSTAPD_LEVEL_DEBUG, 58 "MLME-AUTHENTICATE.indication(" MACSTR ", %s)", 59 MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg)); 60 if (sta->auth_alg != WLAN_AUTH_FT && 61 sta->auth_alg != WLAN_AUTH_FILS_SK && 62 sta->auth_alg != WLAN_AUTH_FILS_SK_PFS && 63 sta->auth_alg != WLAN_AUTH_FILS_PK && 64 !(sta->flags & WLAN_STA_MFP)) 65 mlme_deletekeys_request(hapd, sta); 66 ap_sta_clear_disconnect_timeouts(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 if (!hapd->iface->driver_ap_teardown) 90 mlme_deletekeys_request(hapd, sta); 91 } 92 93 94 /** 95 * mlme_associate_indication - Report the establishment of an association with 96 * a specific peer MAC entity 97 * @hapd: BSS data 98 * @sta: peer STA data 99 * 100 * MLME calls this function as a result of the establishment of an 101 * association with a specific peer MAC entity that resulted from an 102 * association procedure that was initiated by that specific peer MAC entity. 103 * 104 * PeerSTAAddress = sta->addr 105 */ 106 void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta) 107 { 108 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 109 HOSTAPD_LEVEL_DEBUG, 110 "MLME-ASSOCIATE.indication(" MACSTR ")", 111 MAC2STR(sta->addr)); 112 if (sta->auth_alg != WLAN_AUTH_FT && 113 sta->auth_alg != WLAN_AUTH_FILS_SK && 114 sta->auth_alg != WLAN_AUTH_FILS_SK_PFS && 115 sta->auth_alg != WLAN_AUTH_FILS_PK) 116 mlme_deletekeys_request(hapd, sta); 117 ap_sta_clear_disconnect_timeouts(hapd, sta); 118 } 119 120 121 /** 122 * mlme_reassociate_indication - Report the establishment of an reassociation 123 * with a specific peer MAC entity 124 * @hapd: BSS data 125 * @sta: peer STA data 126 * 127 * MLME calls this function as a result of the establishment of an 128 * reassociation with a specific peer MAC entity that resulted from a 129 * reassociation procedure that was initiated by that specific peer MAC entity. 130 * 131 * PeerSTAAddress = sta->addr 132 */ 133 void mlme_reassociate_indication(struct hostapd_data *hapd, 134 struct sta_info *sta) 135 { 136 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 137 HOSTAPD_LEVEL_DEBUG, 138 "MLME-REASSOCIATE.indication(" MACSTR ")", 139 MAC2STR(sta->addr)); 140 if (sta->auth_alg != WLAN_AUTH_FT && 141 sta->auth_alg != WLAN_AUTH_FILS_SK && 142 sta->auth_alg != WLAN_AUTH_FILS_SK_PFS && 143 sta->auth_alg != WLAN_AUTH_FILS_PK) 144 mlme_deletekeys_request(hapd, sta); 145 ap_sta_clear_disconnect_timeouts(hapd, sta); 146 } 147 148 149 /** 150 * mlme_disassociate_indication - Report disassociation with a specific peer 151 * MAC entity 152 * @hapd: BSS data 153 * @sta: Peer STA data 154 * @reason_code: ReasonCode from Disassociation frame 155 * 156 * MLME calls this function as a result of the invalidation of an association 157 * relationship with a specific peer MAC entity. 158 * 159 * PeerSTAAddress = sta->addr 160 */ 161 void mlme_disassociate_indication(struct hostapd_data *hapd, 162 struct sta_info *sta, u16 reason_code) 163 { 164 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 165 HOSTAPD_LEVEL_DEBUG, 166 "MLME-DISASSOCIATE.indication(" MACSTR ", %d)", 167 MAC2STR(sta->addr), reason_code); 168 mlme_deletekeys_request(hapd, sta); 169 } 170 171 172 void mlme_michaelmicfailure_indication(struct hostapd_data *hapd, 173 const u8 *addr) 174 { 175 hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME, 176 HOSTAPD_LEVEL_DEBUG, 177 "MLME-MichaelMICFailure.indication(" MACSTR ")", 178 MAC2STR(addr)); 179 } 180 181 182 void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta) 183 { 184 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME, 185 HOSTAPD_LEVEL_DEBUG, 186 "MLME-DELETEKEYS.request(" MACSTR ")", 187 MAC2STR(sta->addr)); 188 189 if (sta->wpa_sm) 190 wpa_remove_ptk(sta->wpa_sm); 191 } 192
