181 lines
5.2 KiB
C
181 lines
5.2 KiB
C
/*
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* hostapd / IEEE 802.11 MLME
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* Copyright 2003-2006, Jouni Malinen <j@w1.fi>
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* Copyright 2003-2004, Instant802 Networks, Inc.
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* Copyright 2005-2006, Devicescape Software, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include "hostapd.h"
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#include "ieee802_11.h"
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#include "wpa.h"
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#include "mlme.h"
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static const char * mlme_auth_alg_str(int alg)
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{
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switch (alg) {
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case WLAN_AUTH_OPEN:
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return "OPEN_SYSTEM";
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case WLAN_AUTH_SHARED_KEY:
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return "SHARED_KEY";
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case WLAN_AUTH_FT:
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return "FT";
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}
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return "unknown";
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}
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/**
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* mlme_authenticate_indication - Report the establishment of an authentication
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* relationship with a specific peer MAC entity
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* @hapd: BSS data
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* @sta: peer STA data
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*
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* MLME calls this function as a result of the establishment of an
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* authentication relationship with a specific peer MAC entity that
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* resulted from an authentication procedure that was initiated by
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* that specific peer MAC entity.
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*
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* PeerSTAAddress = sta->addr
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* AuthenticationType = sta->auth_alg (WLAN_AUTH_OPEN / WLAN_AUTH_SHARED_KEY)
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*/
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void mlme_authenticate_indication(struct hostapd_data *hapd,
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struct sta_info *sta)
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{
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
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MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
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if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
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mlme_deletekeys_request(hapd, sta);
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}
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/**
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* mlme_deauthenticate_indication - Report the invalidation of an
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* authentication relationship with a specific peer MAC entity
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* @hapd: BSS data
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* @sta: Peer STA data
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* @reason_code: ReasonCode from Deauthentication frame
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*
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* MLME calls this function as a result of the invalidation of an
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* authentication relationship with a specific peer MAC entity.
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*
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* PeerSTAAddress = sta->addr
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*/
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void mlme_deauthenticate_indication(struct hostapd_data *hapd,
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struct sta_info *sta, u16 reason_code)
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{
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
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MAC2STR(sta->addr), reason_code);
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mlme_deletekeys_request(hapd, sta);
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}
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/**
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* mlme_associate_indication - Report the establishment of an association with
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* a specific peer MAC entity
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* @hapd: BSS data
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* @sta: peer STA data
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*
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* MLME calls this function as a result of the establishment of an
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* association with a specific peer MAC entity that resulted from an
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* association procedure that was initiated by that specific peer MAC entity.
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*
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* PeerSTAAddress = sta->addr
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*/
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void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
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{
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-ASSOCIATE.indication(" MACSTR ")",
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MAC2STR(sta->addr));
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if (sta->auth_alg != WLAN_AUTH_FT)
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mlme_deletekeys_request(hapd, sta);
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}
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/**
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* mlme_reassociate_indication - Report the establishment of an reassociation
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* with a specific peer MAC entity
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* @hapd: BSS data
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* @sta: peer STA data
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*
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* MLME calls this function as a result of the establishment of an
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* reassociation with a specific peer MAC entity that resulted from a
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* reassociation procedure that was initiated by that specific peer MAC entity.
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*
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* PeerSTAAddress = sta->addr
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*
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* sta->previous_ap contains the "Current AP" information from ReassocReq.
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*/
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void mlme_reassociate_indication(struct hostapd_data *hapd,
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struct sta_info *sta)
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{
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-REASSOCIATE.indication(" MACSTR ")",
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MAC2STR(sta->addr));
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if (sta->auth_alg != WLAN_AUTH_FT)
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mlme_deletekeys_request(hapd, sta);
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}
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/**
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* mlme_disassociate_indication - Report disassociation with a specific peer
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* MAC entity
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* @hapd: BSS data
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* @sta: Peer STA data
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* @reason_code: ReasonCode from Disassociation frame
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*
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* MLME calls this function as a result of the invalidation of an association
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* relationship with a specific peer MAC entity.
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*
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* PeerSTAAddress = sta->addr
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*/
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void mlme_disassociate_indication(struct hostapd_data *hapd,
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struct sta_info *sta, u16 reason_code)
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{
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-DISASSOCIATE.indication(" MACSTR ", %d)",
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MAC2STR(sta->addr), reason_code);
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mlme_deletekeys_request(hapd, sta);
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}
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void mlme_michaelmicfailure_indication(struct hostapd_data *hapd,
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const u8 *addr)
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{
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hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-MichaelMICFailure.indication(" MACSTR ")",
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MAC2STR(addr));
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}
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void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta)
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{
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
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HOSTAPD_LEVEL_DEBUG,
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"MLME-DELETEKEYS.request(" MACSTR ")",
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MAC2STR(sta->addr));
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if (sta->wpa_sm)
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wpa_remove_ptk(sta->wpa_sm);
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}
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