drivers/staging/rt2870/sta/auth_rsp.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  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     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26
  27         Module Name:
  28         auth_rsp.c
  29
  30         Abstract:
  31
  32         Revision History:
  33         Who                     When                    What
  34         --------        ----------              ----------------------------------------------
  35         John            2004-10-1               copy from RT2560
  36 */
  37 #include "../rt_config.h"
  38
  39 /*
  40     ==========================================================================
  41     Description:
  42         authentication state machine init procedure
  43     Parameters:
  44         Sm - the state machine
  45
  46         IRQL = PASSIVE_LEVEL
  47
  48     ==========================================================================
  49  */
  50 VOID AuthRspStateMachineInit(
  51     IN PRTMP_ADAPTER pAd,
  52     IN PSTATE_MACHINE Sm,
  53     IN STATE_MACHINE_FUNC Trans[])
  54 {
  55     StateMachineInit(Sm, Trans, MAX_AUTH_RSP_STATE, MAX_AUTH_RSP_MSG, (STATE_MACHINE_FUNC)Drop, AUTH_RSP_IDLE, AUTH_RSP_MACHINE_BASE);
  56
  57     // column 1
  58     StateMachineSetAction(Sm, AUTH_RSP_IDLE, MT2_PEER_DEAUTH, (STATE_MACHINE_FUNC)PeerDeauthAction);
  59
  60     // column 2
  61     StateMachineSetAction(Sm, AUTH_RSP_WAIT_CHAL, MT2_PEER_DEAUTH, (STATE_MACHINE_FUNC)PeerDeauthAction);
  62
  63 }
  64
  65 /*
  66     ==========================================================================
  67     Description:
  68
  69         IRQL = DISPATCH_LEVEL
  70
  71     ==========================================================================
  72 */
  73 VOID PeerAuthSimpleRspGenAndSend(
  74     IN PRTMP_ADAPTER pAd,
  75     IN PHEADER_802_11 pHdr80211,
  76     IN USHORT Alg,
  77     IN USHORT Seq,
  78     IN USHORT Reason,
  79     IN USHORT Status)
  80 {
  81     HEADER_802_11     AuthHdr;
  82     ULONG             FrameLen = 0;
  83     PUCHAR            pOutBuffer = NULL;
  84     NDIS_STATUS       NStatus;
  85
  86     if (Reason != MLME_SUCCESS)
  87     {
  88         DBGPRINT(RT_DEBUG_TRACE, ("Peer AUTH fail...\n"));
  89         return;
  90     }
  91
  92         //Get an unused nonpaged memory
  93     NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);
  94     if (NStatus != NDIS_STATUS_SUCCESS)
  95         return;
  96
  97     DBGPRINT(RT_DEBUG_TRACE, ("Send AUTH response (seq#2)...\n"));
  98     MgtMacHeaderInit(pAd, &AuthHdr, SUBTYPE_AUTH, 0, pHdr80211->Addr2, pAd->MlmeAux.Bssid);
  99     MakeOutgoingFrame(pOutBuffer,               &FrameLen,
 100                       sizeof(HEADER_802_11),    &AuthHdr,
 101                       2,                        &Alg,
 102                       2,                        &Seq,
 103                       2,                        &Reason,
 104                       END_OF_ARGS);
 105     MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
 106         MlmeFreeMemory(pAd, pOutBuffer);
 107 }
 108
 109 /*
 110     ==========================================================================
 111     Description:
 112
 113         IRQL = DISPATCH_LEVEL
 114
 115     ==========================================================================
 116 */
 117 VOID PeerDeauthAction(
 118     IN PRTMP_ADAPTER pAd,
 119     IN PMLME_QUEUE_ELEM Elem)
 120 {
 121     UCHAR       Addr2[MAC_ADDR_LEN];
 122     USHORT      Reason;
 123
 124     if (PeerDeauthSanity(pAd, Elem->Msg, Elem->MsgLen, Addr2, &Reason))
 125     {
 126         if (INFRA_ON(pAd) && MAC_ADDR_EQUAL(Addr2, pAd->CommonCfg.Bssid))
 127         {
 128             DBGPRINT(RT_DEBUG_TRACE,("AUTH_RSP - receive DE-AUTH from our AP (Reason=%d)\n", Reason));
 129
 130 #ifdef NATIVE_WPA_SUPPLICANT_SUPPORT
 131             {
 132                 union iwreq_data    wrqu;
 133                 memset(wrqu.ap_addr.sa_data, 0, MAC_ADDR_LEN);
 134                 wireless_send_event(pAd->net_dev, SIOCGIWAP, &wrqu, NULL);
 135             }
 136 #endif // NATIVE_WPA_SUPPLICANT_SUPPORT //
 137
 138
 139                         // send wireless event - for deauthentication
 140                         if (pAd->CommonCfg.bWirelessEvent)
 141                                 RTMPSendWirelessEvent(pAd, IW_DEAUTH_EVENT_FLAG, pAd->MacTab.Content[BSSID_WCID].Addr, BSS0, 0);
 142
 143             LinkDown(pAd, TRUE);
 144
 145             // Authentication Mode Cisco_LEAP has start a timer
 146             // We should cancel it if using LEAP
 147 #ifdef LEAP_SUPPORT
 148             if (pAd->StaCfg.LeapAuthMode == CISCO_AuthModeLEAP)
 149             {
 150                 RTMPCancelTimer(&pAd->StaCfg.LeapAuthTimer, &TimerCancelled);
 151                 //Check is it mach the LEAP Authentication failed as possible a Rogue AP
 152                 //on it's PortSecured not equal to WPA_802_1X_PORT_SECURED while process the Authenticaton.
 153                 if ((pAd->StaCfg.PortSecured != WPA_802_1X_PORT_SECURED) && (pAd->Mlme.LeapMachine.CurrState != LEAP_IDLE))
 154                 {
 155                     RogueApTableSetEntry(pAd, &pAd->StaCfg.RogueApTab, Addr2, LEAP_REASON_AUTH_TIMEOUT);
 156                 }
 157             }
 158 #endif // LEAP_SUPPORT //
 159         }
 160     }
 161     else
 162     {
 163         DBGPRINT(RT_DEBUG_TRACE,("AUTH_RSP - PeerDeauthAction() sanity check fail\n"));
 164     }
 165 }
 166