354c903f8e
This commit adds an option to optimize AP teardown by leaving the deletion of keys (including group keys) and stations to the driver. This optimization option should be used if the driver supports stations and keys removal when stopping an AP. For example, the optimization option will always be used for cfg80211 drivers since cfg80211 shall always remove stations and keys when stopping an AP (in order to support cases where the AP is disabled without the knowledge of wpa_supplicant/hostapd). Signed-off-by: Moshe Benji <moshe.benji@intel.com>
180 lines
5.2 KiB
C
180 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 software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "common/ieee802_11_defs.h"
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#include "ieee802_11.h"
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#include "wpa_auth.h"
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#include "sta_info.h"
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#include "ap_mlme.h"
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#include "hostapd.h"
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#ifndef CONFIG_NO_HOSTAPD_LOGGER
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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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#endif /* CONFIG_NO_HOSTAPD_LOGGER */
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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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if (!hapd->iface->driver_ap_teardown)
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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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