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Viewing changes to drivers/staging/rt2860/sta/auth_rsp.c

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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drivers/staging/rt2860/sta/auth_rsp.c
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/*
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 *************************************************************************
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 * Ralink Tech Inc.
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 * 5F., No.36, Taiyuan St., Jhubei City,
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 * Hsinchu County 302,
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 * Taiwan, R.O.C.
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 *
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 * (c) Copyright 2002-2007, Ralink Technology, Inc.
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 *
10
 
 * This program is free software; you can redistribute it and/or modify  *
11
 
 * it under the terms of the GNU General Public License as published by  *
12
 
 * the Free Software Foundation; either version 2 of the License, or     *
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 * (at your option) any later version.                                   *
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 *                                                                       *
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 * This program is distributed in the hope that it will be useful,       *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
18
 
 * GNU General Public License for more details.                          *
19
 
 *                                                                       *
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 * You should have received a copy of the GNU General Public License     *
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 * along with this program; if not, write to the                         *
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 * Free Software Foundation, Inc.,                                       *
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 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
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 *                                                                       *
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 *************************************************************************
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        Module Name:
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        auth_rsp.c
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        Abstract:
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        Revision History:
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        Who                     When                    What
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        --------        ----------              ----------------------------------------------
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        John            2004-10-1               copy from RT2560
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*/
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#include "../rt_config.h"
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/*
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    ==========================================================================
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    Description:
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        authentication state machine init procedure
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    Parameters:
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        Sm - the state machine
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        IRQL = PASSIVE_LEVEL
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    ==========================================================================
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 */
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void AuthRspStateMachineInit(struct rt_rtmp_adapter *pAd,
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                             struct rt_state_machine *Sm,
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                             IN STATE_MACHINE_FUNC Trans[])
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{
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        StateMachineInit(Sm, Trans, MAX_AUTH_RSP_STATE, MAX_AUTH_RSP_MSG,
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                         (STATE_MACHINE_FUNC) Drop, AUTH_RSP_IDLE,
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                         AUTH_RSP_MACHINE_BASE);
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        /* column 1 */
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        StateMachineSetAction(Sm, AUTH_RSP_IDLE, MT2_PEER_DEAUTH,
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                              (STATE_MACHINE_FUNC) PeerDeauthAction);
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        /* column 2 */
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        StateMachineSetAction(Sm, AUTH_RSP_WAIT_CHAL, MT2_PEER_DEAUTH,
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                              (STATE_MACHINE_FUNC) PeerDeauthAction);
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}
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/*
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    ==========================================================================
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    Description:
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        IRQL = DISPATCH_LEVEL
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    ==========================================================================
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*/
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void PeerAuthSimpleRspGenAndSend(struct rt_rtmp_adapter *pAd,
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                                 struct rt_header_802_11 * pHdr80211,
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                                 u16 Alg,
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                                 u16 Seq,
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                                 u16 Reason, u16 Status)
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{
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        struct rt_header_802_11 AuthHdr;
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        unsigned long FrameLen = 0;
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        u8 *pOutBuffer = NULL;
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        int NStatus;
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        if (Reason != MLME_SUCCESS) {
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                DBGPRINT(RT_DEBUG_TRACE, ("Peer AUTH fail...\n"));
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                return;
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        }
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        /*Get an unused nonpaged memory */
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        NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);
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        if (NStatus != NDIS_STATUS_SUCCESS)
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                return;
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        DBGPRINT(RT_DEBUG_TRACE, ("Send AUTH response (seq#2)...\n"));
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        MgtMacHeaderInit(pAd, &AuthHdr, SUBTYPE_AUTH, 0, pHdr80211->Addr2,
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                         pAd->MlmeAux.Bssid);
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        MakeOutgoingFrame(pOutBuffer, &FrameLen, sizeof(struct rt_header_802_11),
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                          &AuthHdr, 2, &Alg, 2, &Seq, 2, &Reason, END_OF_ARGS);
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        MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
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        MlmeFreeMemory(pAd, pOutBuffer);
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}
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/*
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    ==========================================================================
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    Description:
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        IRQL = DISPATCH_LEVEL
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    ==========================================================================
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*/
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void PeerDeauthAction(struct rt_rtmp_adapter *pAd, struct rt_mlme_queue_elem *Elem)
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{
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        u8 Addr2[MAC_ADDR_LEN];
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        u16 Reason;
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        if (PeerDeauthSanity(pAd, Elem->Msg, Elem->MsgLen, Addr2, &Reason)) {
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                if (INFRA_ON(pAd)
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                    && MAC_ADDR_EQUAL(Addr2, pAd->CommonCfg.Bssid)
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                    ) {
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                        DBGPRINT(RT_DEBUG_TRACE,
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                                 ("AUTH_RSP - receive DE-AUTH from our AP (Reason=%d)\n",
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                                  Reason));
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                        RtmpOSWrielessEventSend(pAd, SIOCGIWAP, -1, NULL, NULL,
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                                                0);
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                        /* send wireless event - for deauthentication */
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                        if (pAd->CommonCfg.bWirelessEvent)
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                                RTMPSendWirelessEvent(pAd, IW_DEAUTH_EVENT_FLAG,
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                                                      pAd->MacTab.
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                                                      Content[BSSID_WCID].Addr,
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                                                      BSS0, 0);
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                        LinkDown(pAd, TRUE);
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                }
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        } else {
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                DBGPRINT(RT_DEBUG_TRACE,
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                         ("AUTH_RSP - PeerDeauthAction() sanity check fail\n"));
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        }
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}