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06aea994cf
This removes superfluous exclamation marks from strings and comments, and also three spelling typos. Signed-off-by: Sebastian Dalfuß <sd@sedf.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1205 lines
36 KiB
C
1205 lines
36 KiB
C
/*
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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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*
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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 as published by *
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* 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 *
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* GNU General Public License for more details. *
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* *
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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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sanity.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 Chang 2004-09-01 add WMM support
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*/
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#include "../rt_config.h"
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extern u8 CISCO_OUI[];
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extern u8 WPA_OUI[];
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extern u8 RSN_OUI[];
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extern u8 WME_INFO_ELEM[];
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extern u8 WME_PARM_ELEM[];
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extern u8 Ccx2QosInfo[];
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extern u8 RALINK_OUI[];
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extern u8 BROADCOM_OUI[];
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extern u8 WPS_OUI[];
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/*
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==========================================================================
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Description:
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MLME message sanity check
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Return:
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TRUE if all parameters are OK, FALSE otherwise
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IRQL = DISPATCH_LEVEL
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==========================================================================
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*/
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BOOLEAN MlmeAddBAReqSanity(struct rt_rtmp_adapter *pAd,
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void * Msg, unsigned long MsgLen, u8 *pAddr2)
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{
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struct rt_mlme_addba_req *pInfo;
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pInfo = (struct rt_mlme_addba_req *)Msg;
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if ((MsgLen != sizeof(struct rt_mlme_addba_req))) {
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DBGPRINT(RT_DEBUG_TRACE,
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("MlmeAddBAReqSanity fail - message lenght not correct.\n"));
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return FALSE;
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}
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if ((pInfo->Wcid >= MAX_LEN_OF_MAC_TABLE)) {
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DBGPRINT(RT_DEBUG_TRACE,
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("MlmeAddBAReqSanity fail - The peer Mac is not associated yet.\n"));
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return FALSE;
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}
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if ((pInfo->pAddr[0] & 0x01) == 0x01) {
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DBGPRINT(RT_DEBUG_TRACE,
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("MlmeAddBAReqSanity fail - broadcast address not support BA\n"));
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return FALSE;
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}
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return TRUE;
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}
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/*
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==========================================================================
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Description:
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MLME message sanity check
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Return:
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TRUE if all parameters are OK, FALSE otherwise
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IRQL = DISPATCH_LEVEL
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==========================================================================
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*/
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BOOLEAN MlmeDelBAReqSanity(struct rt_rtmp_adapter *pAd, void * Msg, unsigned long MsgLen)
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{
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struct rt_mlme_delba_req *pInfo;
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pInfo = (struct rt_mlme_delba_req *)Msg;
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if ((MsgLen != sizeof(struct rt_mlme_delba_req))) {
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DBGPRINT(RT_DEBUG_ERROR,
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("MlmeDelBAReqSanity fail - message lenght not correct.\n"));
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return FALSE;
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}
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if ((pInfo->Wcid >= MAX_LEN_OF_MAC_TABLE)) {
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DBGPRINT(RT_DEBUG_ERROR,
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("MlmeDelBAReqSanity fail - The peer Mac is not associated yet.\n"));
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return FALSE;
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}
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if ((pInfo->TID & 0xf0)) {
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DBGPRINT(RT_DEBUG_ERROR,
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("MlmeDelBAReqSanity fail - The peer TID is incorrect.\n"));
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return FALSE;
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}
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if (NdisEqualMemory
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(pAd->MacTab.Content[pInfo->Wcid].Addr, pInfo->Addr,
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MAC_ADDR_LEN) == 0) {
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DBGPRINT(RT_DEBUG_ERROR,
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("MlmeDelBAReqSanity fail - the peer addr dosen't exist.\n"));
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return FALSE;
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}
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return TRUE;
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}
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BOOLEAN PeerAddBAReqActionSanity(struct rt_rtmp_adapter *pAd,
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void * pMsg,
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unsigned long MsgLen, u8 *pAddr2)
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{
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struct rt_frame_802_11 * pFrame = (struct rt_frame_802_11 *) pMsg;
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struct rt_frame_addba_req * pAddFrame;
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pAddFrame = (struct rt_frame_addba_req *) (pMsg);
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if (MsgLen < (sizeof(struct rt_frame_addba_req))) {
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DBGPRINT(RT_DEBUG_ERROR,
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("PeerAddBAReqActionSanity: ADDBA Request frame length size = %ld incorrect\n",
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MsgLen));
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return FALSE;
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}
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/* we support immediate BA. */
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*(u16 *) (&pAddFrame->BaParm) =
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cpu2le16(*(u16 *) (&pAddFrame->BaParm));
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pAddFrame->TimeOutValue = cpu2le16(pAddFrame->TimeOutValue);
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pAddFrame->BaStartSeq.word = cpu2le16(pAddFrame->BaStartSeq.word);
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if (pAddFrame->BaParm.BAPolicy != IMMED_BA) {
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DBGPRINT(RT_DEBUG_ERROR,
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("PeerAddBAReqActionSanity: ADDBA Request Ba Policy[%d] not support\n",
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pAddFrame->BaParm.BAPolicy));
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DBGPRINT(RT_DEBUG_ERROR,
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("ADDBA Request. tid=%x, Bufsize=%x, AMSDUSupported=%x \n",
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pAddFrame->BaParm.TID, pAddFrame->BaParm.BufSize,
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pAddFrame->BaParm.AMSDUSupported));
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return FALSE;
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}
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/* we support immediate BA. */
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if (pAddFrame->BaParm.TID & 0xfff0) {
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DBGPRINT(RT_DEBUG_ERROR,
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("PeerAddBAReqActionSanity: ADDBA Request incorrect TID = %d\n",
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pAddFrame->BaParm.TID));
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return FALSE;
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}
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COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
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return TRUE;
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}
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BOOLEAN PeerAddBARspActionSanity(struct rt_rtmp_adapter *pAd,
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void * pMsg, unsigned long MsgLen)
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{
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struct rt_frame_addba_rsp * pAddFrame;
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pAddFrame = (struct rt_frame_addba_rsp *) (pMsg);
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if (MsgLen < (sizeof(struct rt_frame_addba_rsp))) {
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DBGPRINT(RT_DEBUG_ERROR,
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("PeerAddBARspActionSanity: ADDBA Response frame length size = %ld incorrect\n",
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MsgLen));
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return FALSE;
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}
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/* we support immediate BA. */
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*(u16 *) (&pAddFrame->BaParm) =
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cpu2le16(*(u16 *) (&pAddFrame->BaParm));
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pAddFrame->StatusCode = cpu2le16(pAddFrame->StatusCode);
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pAddFrame->TimeOutValue = cpu2le16(pAddFrame->TimeOutValue);
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if (pAddFrame->BaParm.BAPolicy != IMMED_BA) {
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DBGPRINT(RT_DEBUG_ERROR,
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("PeerAddBAReqActionSanity: ADDBA Response Ba Policy[%d] not support\n",
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pAddFrame->BaParm.BAPolicy));
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return FALSE;
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}
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/* we support immediate BA. */
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if (pAddFrame->BaParm.TID & 0xfff0) {
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DBGPRINT(RT_DEBUG_ERROR,
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("PeerAddBARspActionSanity: ADDBA Response incorrect TID = %d\n",
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pAddFrame->BaParm.TID));
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return FALSE;
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}
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return TRUE;
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}
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BOOLEAN PeerDelBAActionSanity(struct rt_rtmp_adapter *pAd,
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u8 Wcid, void * pMsg, unsigned long MsgLen)
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{
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/*struct rt_frame_802_11 * pFrame = (struct rt_frame_802_11 *)pMsg; */
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struct rt_frame_delba_req * pDelFrame;
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if (MsgLen != (sizeof(struct rt_frame_delba_req)))
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return FALSE;
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if (Wcid >= MAX_LEN_OF_MAC_TABLE)
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return FALSE;
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pDelFrame = (struct rt_frame_delba_req *) (pMsg);
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*(u16 *) (&pDelFrame->DelbaParm) =
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cpu2le16(*(u16 *) (&pDelFrame->DelbaParm));
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pDelFrame->ReasonCode = cpu2le16(pDelFrame->ReasonCode);
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if (pDelFrame->DelbaParm.TID & 0xfff0)
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return FALSE;
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return TRUE;
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}
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/*
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==========================================================================
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Description:
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MLME message sanity check
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Return:
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TRUE if all parameters are OK, FALSE otherwise
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IRQL = DISPATCH_LEVEL
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==========================================================================
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*/
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BOOLEAN PeerBeaconAndProbeRspSanity(struct rt_rtmp_adapter *pAd, void * Msg, unsigned long MsgLen, u8 MsgChannel, u8 *pAddr2, u8 *pBssid, char Ssid[], u8 * pSsidLen, u8 * pBssType, u16 * pBeaconPeriod, u8 * pChannel, u8 * pNewChannel, OUT LARGE_INTEGER * pTimestamp, struct rt_cf_parm * pCfParm, u16 * pAtimWin, u16 * pCapabilityInfo, u8 * pErp, u8 * pDtimCount, u8 * pDtimPeriod, u8 * pBcastFlag, u8 * pMessageToMe, u8 SupRate[], u8 * pSupRateLen, u8 ExtRate[], u8 * pExtRateLen, u8 * pCkipFlag, u8 * pAironetCellPowerLimit, struct rt_edca_parm *pEdcaParm, struct rt_qbss_load_parm *pQbssLoad, struct rt_qos_capability_parm *pQosCapability, unsigned long * pRalinkIe, u8 * pHtCapabilityLen, u8 * pPreNHtCapabilityLen, struct rt_ht_capability_ie * pHtCapability, u8 * AddHtInfoLen, struct rt_add_ht_info_ie * AddHtInfo, u8 * NewExtChannelOffset, /* Ht extension channel offset(above or below) */
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u16 * LengthVIE,
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struct rt_ndis_802_11_variable_ies *pVIE)
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{
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u8 *Ptr;
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u8 TimLen;
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struct rt_frame_802_11 * pFrame;
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struct rt_eid * pEid;
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u8 SubType;
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u8 Sanity;
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/*u8 ECWMin, ECWMax; */
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/*MAC_CSR9_STRUC Csr9; */
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unsigned long Length = 0;
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/* For some 11a AP which didn't have DS_IE, we use two conditions to decide the channel */
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/* 1. If the AP is 11n enabled, then check the control channel. */
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/* 2. If the AP didn't have any info about channel, use the channel we received this frame as the channel. (May inaccuracy!) */
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u8 CtrlChannel = 0;
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/* Add for 3 necessary EID field check */
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Sanity = 0;
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*pAtimWin = 0;
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*pErp = 0;
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*pDtimCount = 0;
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*pDtimPeriod = 0;
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*pBcastFlag = 0;
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*pMessageToMe = 0;
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*pExtRateLen = 0;
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*pCkipFlag = 0; /* Default of CkipFlag is 0 */
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*pAironetCellPowerLimit = 0xFF; /* Default of AironetCellPowerLimit is 0xFF */
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*LengthVIE = 0; /* Set the length of VIE to init value 0 */
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*pHtCapabilityLen = 0; /* Set the length of VIE to init value 0 */
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if (pAd->OpMode == OPMODE_STA)
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*pPreNHtCapabilityLen = 0; /* Set the length of VIE to init value 0 */
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*AddHtInfoLen = 0; /* Set the length of VIE to init value 0 */
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*pRalinkIe = 0;
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*pNewChannel = 0;
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*NewExtChannelOffset = 0xff; /*Default 0xff means no such IE */
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pCfParm->bValid = FALSE; /* default: no IE_CF found */
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pQbssLoad->bValid = FALSE; /* default: no IE_QBSS_LOAD found */
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pEdcaParm->bValid = FALSE; /* default: no IE_EDCA_PARAMETER found */
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pQosCapability->bValid = FALSE; /* default: no IE_QOS_CAPABILITY found */
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pFrame = (struct rt_frame_802_11 *) Msg;
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/* get subtype from header */
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SubType = (u8)pFrame->Hdr.FC.SubType;
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/* get Addr2 and BSSID from header */
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COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
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COPY_MAC_ADDR(pBssid, pFrame->Hdr.Addr3);
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Ptr = pFrame->Octet;
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Length += LENGTH_802_11;
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/* get timestamp from payload and advance the pointer */
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NdisMoveMemory(pTimestamp, Ptr, TIMESTAMP_LEN);
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pTimestamp->u.LowPart = cpu2le32(pTimestamp->u.LowPart);
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pTimestamp->u.HighPart = cpu2le32(pTimestamp->u.HighPart);
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Ptr += TIMESTAMP_LEN;
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Length += TIMESTAMP_LEN;
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/* get beacon interval from payload and advance the pointer */
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NdisMoveMemory(pBeaconPeriod, Ptr, 2);
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Ptr += 2;
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Length += 2;
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/* get capability info from payload and advance the pointer */
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NdisMoveMemory(pCapabilityInfo, Ptr, 2);
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Ptr += 2;
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Length += 2;
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if (CAP_IS_ESS_ON(*pCapabilityInfo))
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*pBssType = BSS_INFRA;
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else
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*pBssType = BSS_ADHOC;
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pEid = (struct rt_eid *) Ptr;
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/* get variable fields from payload and advance the pointer */
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while ((Length + 2 + pEid->Len) <= MsgLen) {
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/* */
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/* Secure copy VIE to VarIE[MAX_VIE_LEN] didn't overflow. */
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/* */
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if ((*LengthVIE + pEid->Len + 2) >= MAX_VIE_LEN) {
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DBGPRINT(RT_DEBUG_WARN,
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("PeerBeaconAndProbeRspSanity - Variable IEs out of resource [len(=%d) > MAX_VIE_LEN(=%d)]\n",
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(*LengthVIE + pEid->Len + 2), MAX_VIE_LEN));
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break;
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}
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switch (pEid->Eid) {
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case IE_SSID:
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/* Already has one SSID EID in this beacon, ignore the second one */
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if (Sanity & 0x1)
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break;
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if (pEid->Len <= MAX_LEN_OF_SSID) {
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NdisMoveMemory(Ssid, pEid->Octet, pEid->Len);
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*pSsidLen = pEid->Len;
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Sanity |= 0x1;
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} else {
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DBGPRINT(RT_DEBUG_TRACE,
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("PeerBeaconAndProbeRspSanity - wrong IE_SSID (len=%d)\n",
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pEid->Len));
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return FALSE;
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}
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break;
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case IE_SUPP_RATES:
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if (pEid->Len <= MAX_LEN_OF_SUPPORTED_RATES) {
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Sanity |= 0x2;
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NdisMoveMemory(SupRate, pEid->Octet, pEid->Len);
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*pSupRateLen = pEid->Len;
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/* TODO: 2004-09-14 not a good design here, cause it exclude extra rates */
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/* from ScanTab. We should report as is. And filter out unsupported */
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/* rates in MlmeAux. */
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/* Check against the supported rates */
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/* RTMPCheckRates(pAd, SupRate, pSupRateLen); */
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} else {
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DBGPRINT(RT_DEBUG_TRACE,
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("PeerBeaconAndProbeRspSanity - wrong IE_SUPP_RATES (len=%d)\n",
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pEid->Len));
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return FALSE;
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}
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break;
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case IE_HT_CAP:
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if (pEid->Len >= SIZE_HT_CAP_IE) /*Note: allow extension! */
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{
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NdisMoveMemory(pHtCapability, pEid->Octet,
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sizeof(struct rt_ht_capability_ie));
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*pHtCapabilityLen = SIZE_HT_CAP_IE; /* Nnow we only support 26 bytes. */
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*(u16 *) (&pHtCapability->HtCapInfo) =
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cpu2le16(*(u16 *)
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(&pHtCapability->HtCapInfo));
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*(u16 *) (&pHtCapability->ExtHtCapInfo) =
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cpu2le16(*(u16 *)
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(&pHtCapability->ExtHtCapInfo));
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{
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*pPreNHtCapabilityLen = 0; /* Nnow we only support 26 bytes. */
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Ptr = (u8 *)pVIE;
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NdisMoveMemory(Ptr + *LengthVIE,
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&pEid->Eid,
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pEid->Len + 2);
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*LengthVIE += (pEid->Len + 2);
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}
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} else {
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DBGPRINT(RT_DEBUG_WARN,
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("PeerBeaconAndProbeRspSanity - wrong IE_HT_CAP. pEid->Len = %d\n",
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pEid->Len));
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}
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break;
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case IE_ADD_HT:
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if (pEid->Len >= sizeof(struct rt_add_ht_info_ie)) {
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/* This IE allows extension, but we can ignore extra bytes beyond our knowledge , so only */
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/* copy first sizeof(struct rt_add_ht_info_ie) */
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NdisMoveMemory(AddHtInfo, pEid->Octet,
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sizeof(struct rt_add_ht_info_ie));
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*AddHtInfoLen = SIZE_ADD_HT_INFO_IE;
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CtrlChannel = AddHtInfo->ControlChan;
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*(u16 *) (&AddHtInfo->AddHtInfo2) =
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cpu2le16(*(u16 *)
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(&AddHtInfo->AddHtInfo2));
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*(u16 *) (&AddHtInfo->AddHtInfo3) =
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cpu2le16(*(u16 *)
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(&AddHtInfo->AddHtInfo3));
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{
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Ptr = (u8 *)pVIE;
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NdisMoveMemory(Ptr + *LengthVIE,
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&pEid->Eid,
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pEid->Len + 2);
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*LengthVIE += (pEid->Len + 2);
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}
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} else {
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DBGPRINT(RT_DEBUG_WARN,
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("PeerBeaconAndProbeRspSanity - wrong IE_ADD_HT. \n"));
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}
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break;
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case IE_SECONDARY_CH_OFFSET:
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if (pEid->Len == 1) {
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*NewExtChannelOffset = pEid->Octet[0];
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} else {
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DBGPRINT(RT_DEBUG_WARN,
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("PeerBeaconAndProbeRspSanity - wrong IE_SECONDARY_CH_OFFSET. \n"));
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}
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break;
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case IE_FH_PARM:
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DBGPRINT(RT_DEBUG_TRACE,
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("PeerBeaconAndProbeRspSanity(IE_FH_PARM) \n"));
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break;
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case IE_DS_PARM:
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if (pEid->Len == 1) {
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*pChannel = *pEid->Octet;
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|
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{
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if (ChannelSanity(pAd, *pChannel) == 0) {
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return FALSE;
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}
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}
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Sanity |= 0x4;
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} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("PeerBeaconAndProbeRspSanity - wrong IE_DS_PARM (len=%d)\n",
|
|
pEid->Len));
|
|
return FALSE;
|
|
}
|
|
break;
|
|
|
|
case IE_CF_PARM:
|
|
if (pEid->Len == 6) {
|
|
pCfParm->bValid = TRUE;
|
|
pCfParm->CfpCount = pEid->Octet[0];
|
|
pCfParm->CfpPeriod = pEid->Octet[1];
|
|
pCfParm->CfpMaxDuration =
|
|
pEid->Octet[2] + 256 * pEid->Octet[3];
|
|
pCfParm->CfpDurRemaining =
|
|
pEid->Octet[4] + 256 * pEid->Octet[5];
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("PeerBeaconAndProbeRspSanity - wrong IE_CF_PARM\n"));
|
|
return FALSE;
|
|
}
|
|
break;
|
|
|
|
case IE_IBSS_PARM:
|
|
if (pEid->Len == 2) {
|
|
NdisMoveMemory(pAtimWin, pEid->Octet,
|
|
pEid->Len);
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("PeerBeaconAndProbeRspSanity - wrong IE_IBSS_PARM\n"));
|
|
return FALSE;
|
|
}
|
|
break;
|
|
|
|
case IE_TIM:
|
|
if (INFRA_ON(pAd) && SubType == SUBTYPE_BEACON) {
|
|
GetTimBit((char *)pEid, pAd->StaActive.Aid,
|
|
&TimLen, pBcastFlag, pDtimCount,
|
|
pDtimPeriod, pMessageToMe);
|
|
}
|
|
break;
|
|
case IE_CHANNEL_SWITCH_ANNOUNCEMENT:
|
|
if (pEid->Len == 3) {
|
|
*pNewChannel = pEid->Octet[1]; /*extract new channel number */
|
|
}
|
|
break;
|
|
|
|
/* New for WPA */
|
|
/* CCX v2 has the same IE, we need to parse that too */
|
|
/* Wifi WMM use the same IE vale, need to parse that too */
|
|
/* case IE_WPA: */
|
|
case IE_VENDOR_SPECIFIC:
|
|
/* Check Broadcom/Atheros 802.11n OUI version, for HT Capability IE. */
|
|
/* This HT IE is before IEEE draft set HT IE value.2006-09-28 by Jan. */
|
|
/*if (NdisEqualMemory(pEid->Octet, BROADCOM_OUI, 3) && (pEid->Len >= 4))
|
|
{
|
|
if ((pEid->Octet[3] == OUI_BROADCOM_HT) && (pEid->Len >= 30))
|
|
{
|
|
{
|
|
NdisMoveMemory(pHtCapability, &pEid->Octet[4], sizeof(struct rt_ht_capability_ie));
|
|
*pHtCapabilityLen = SIZE_HT_CAP_IE; // Nnow we only support 26 bytes.
|
|
}
|
|
}
|
|
if ((pEid->Octet[3] == OUI_BROADCOM_HT) && (pEid->Len >= 26))
|
|
{
|
|
{
|
|
NdisMoveMemory(AddHtInfo, &pEid->Octet[4], sizeof(struct rt_add_ht_info_ie));
|
|
*AddHtInfoLen = SIZE_ADD_HT_INFO_IE; // Nnow we only support 26 bytes.
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
/* Check the OUI version, filter out non-standard usage */
|
|
if (NdisEqualMemory(pEid->Octet, RALINK_OUI, 3)
|
|
&& (pEid->Len == 7)) {
|
|
/**pRalinkIe = pEid->Octet[3]; */
|
|
if (pEid->Octet[3] != 0)
|
|
*pRalinkIe = pEid->Octet[3];
|
|
else
|
|
*pRalinkIe = 0xf0000000; /* Set to non-zero value (can't set bit0-2) to represent this is Ralink Chip. So at linkup, we will set ralinkchip flag. */
|
|
}
|
|
/* This HT IE is before IEEE draft set HT IE value.2006-09-28 by Jan. */
|
|
|
|
/* Other vendors had production before IE_HT_CAP value is assigned. To backward support those old-firmware AP, */
|
|
/* Check broadcom-defiend pre-802.11nD1.0 OUI for HT related IE, including HT Capatilities IE and HT Information IE */
|
|
else if ((*pHtCapabilityLen == 0)
|
|
&& NdisEqualMemory(pEid->Octet, PRE_N_HT_OUI,
|
|
3) && (pEid->Len >= 4)
|
|
&& (pAd->OpMode == OPMODE_STA)) {
|
|
if ((pEid->Octet[3] == OUI_PREN_HT_CAP)
|
|
&& (pEid->Len >= 30)
|
|
&& (*pHtCapabilityLen == 0)) {
|
|
NdisMoveMemory(pHtCapability,
|
|
&pEid->Octet[4],
|
|
sizeof
|
|
(struct rt_ht_capability_ie));
|
|
*pPreNHtCapabilityLen = SIZE_HT_CAP_IE;
|
|
}
|
|
|
|
if ((pEid->Octet[3] == OUI_PREN_ADD_HT)
|
|
&& (pEid->Len >= 26)) {
|
|
NdisMoveMemory(AddHtInfo,
|
|
&pEid->Octet[4],
|
|
sizeof(struct rt_add_ht_info_ie));
|
|
*AddHtInfoLen = SIZE_ADD_HT_INFO_IE;
|
|
}
|
|
} else if (NdisEqualMemory(pEid->Octet, WPA_OUI, 4)) {
|
|
/* Copy to pVIE which will report to microsoft bssid list. */
|
|
Ptr = (u8 *)pVIE;
|
|
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid,
|
|
pEid->Len + 2);
|
|
*LengthVIE += (pEid->Len + 2);
|
|
} else
|
|
if (NdisEqualMemory(pEid->Octet, WME_PARM_ELEM, 6)
|
|
&& (pEid->Len == 24)) {
|
|
u8 *ptr;
|
|
int i;
|
|
|
|
/* parsing EDCA parameters */
|
|
pEdcaParm->bValid = TRUE;
|
|
pEdcaParm->bQAck = FALSE; /* pEid->Octet[0] & 0x10; */
|
|
pEdcaParm->bQueueRequest = FALSE; /* pEid->Octet[0] & 0x20; */
|
|
pEdcaParm->bTxopRequest = FALSE; /* pEid->Octet[0] & 0x40; */
|
|
pEdcaParm->EdcaUpdateCount =
|
|
pEid->Octet[6] & 0x0f;
|
|
pEdcaParm->bAPSDCapable =
|
|
(pEid->Octet[6] & 0x80) ? 1 : 0;
|
|
ptr = &pEid->Octet[8];
|
|
for (i = 0; i < 4; i++) {
|
|
u8 aci = (*ptr & 0x60) >> 5; /* b5~6 is AC INDEX */
|
|
pEdcaParm->bACM[aci] = (((*ptr) & 0x10) == 0x10); /* b5 is ACM */
|
|
pEdcaParm->Aifsn[aci] = (*ptr) & 0x0f; /* b0~3 is AIFSN */
|
|
pEdcaParm->Cwmin[aci] = *(ptr + 1) & 0x0f; /* b0~4 is Cwmin */
|
|
pEdcaParm->Cwmax[aci] = *(ptr + 1) >> 4; /* b5~8 is Cwmax */
|
|
pEdcaParm->Txop[aci] = *(ptr + 2) + 256 * (*(ptr + 3)); /* in unit of 32-us */
|
|
ptr += 4; /* point to next AC */
|
|
}
|
|
} else
|
|
if (NdisEqualMemory(pEid->Octet, WME_INFO_ELEM, 6)
|
|
&& (pEid->Len == 7)) {
|
|
/* parsing EDCA parameters */
|
|
pEdcaParm->bValid = TRUE;
|
|
pEdcaParm->bQAck = FALSE; /* pEid->Octet[0] & 0x10; */
|
|
pEdcaParm->bQueueRequest = FALSE; /* pEid->Octet[0] & 0x20; */
|
|
pEdcaParm->bTxopRequest = FALSE; /* pEid->Octet[0] & 0x40; */
|
|
pEdcaParm->EdcaUpdateCount =
|
|
pEid->Octet[6] & 0x0f;
|
|
pEdcaParm->bAPSDCapable =
|
|
(pEid->Octet[6] & 0x80) ? 1 : 0;
|
|
|
|
/* use default EDCA parameter */
|
|
pEdcaParm->bACM[QID_AC_BE] = 0;
|
|
pEdcaParm->Aifsn[QID_AC_BE] = 3;
|
|
pEdcaParm->Cwmin[QID_AC_BE] = CW_MIN_IN_BITS;
|
|
pEdcaParm->Cwmax[QID_AC_BE] = CW_MAX_IN_BITS;
|
|
pEdcaParm->Txop[QID_AC_BE] = 0;
|
|
|
|
pEdcaParm->bACM[QID_AC_BK] = 0;
|
|
pEdcaParm->Aifsn[QID_AC_BK] = 7;
|
|
pEdcaParm->Cwmin[QID_AC_BK] = CW_MIN_IN_BITS;
|
|
pEdcaParm->Cwmax[QID_AC_BK] = CW_MAX_IN_BITS;
|
|
pEdcaParm->Txop[QID_AC_BK] = 0;
|
|
|
|
pEdcaParm->bACM[QID_AC_VI] = 0;
|
|
pEdcaParm->Aifsn[QID_AC_VI] = 2;
|
|
pEdcaParm->Cwmin[QID_AC_VI] =
|
|
CW_MIN_IN_BITS - 1;
|
|
pEdcaParm->Cwmax[QID_AC_VI] = CW_MAX_IN_BITS;
|
|
pEdcaParm->Txop[QID_AC_VI] = 96; /* AC_VI: 96*32us ~= 3ms */
|
|
|
|
pEdcaParm->bACM[QID_AC_VO] = 0;
|
|
pEdcaParm->Aifsn[QID_AC_VO] = 2;
|
|
pEdcaParm->Cwmin[QID_AC_VO] =
|
|
CW_MIN_IN_BITS - 2;
|
|
pEdcaParm->Cwmax[QID_AC_VO] =
|
|
CW_MAX_IN_BITS - 1;
|
|
pEdcaParm->Txop[QID_AC_VO] = 48; /* AC_VO: 48*32us ~= 1.5ms */
|
|
}
|
|
|
|
break;
|
|
|
|
case IE_EXT_SUPP_RATES:
|
|
if (pEid->Len <= MAX_LEN_OF_SUPPORTED_RATES) {
|
|
NdisMoveMemory(ExtRate, pEid->Octet, pEid->Len);
|
|
*pExtRateLen = pEid->Len;
|
|
|
|
/* TODO: 2004-09-14 not a good design here, cause it exclude extra rates */
|
|
/* from ScanTab. We should report as is. And filter out unsupported */
|
|
/* rates in MlmeAux. */
|
|
/* Check against the supported rates */
|
|
/* RTMPCheckRates(pAd, ExtRate, pExtRateLen); */
|
|
}
|
|
break;
|
|
|
|
case IE_ERP:
|
|
if (pEid->Len == 1) {
|
|
*pErp = (u8)pEid->Octet[0];
|
|
}
|
|
break;
|
|
|
|
case IE_AIRONET_CKIP:
|
|
/* 0. Check Aironet IE length, it must be larger or equal to 28 */
|
|
/* Cisco AP350 used length as 28 */
|
|
/* Cisco AP12XX used length as 30 */
|
|
if (pEid->Len < (CKIP_NEGOTIATION_LENGTH - 2))
|
|
break;
|
|
|
|
/* 1. Copy CKIP flag byte to buffer for process */
|
|
*pCkipFlag = *(pEid->Octet + 8);
|
|
break;
|
|
|
|
case IE_AP_TX_POWER:
|
|
/* AP Control of Client Transmit Power */
|
|
/*0. Check Aironet IE length, it must be 6 */
|
|
if (pEid->Len != 0x06)
|
|
break;
|
|
|
|
/* Get cell power limit in dBm */
|
|
if (NdisEqualMemory(pEid->Octet, CISCO_OUI, 3) == 1)
|
|
*pAironetCellPowerLimit = *(pEid->Octet + 4);
|
|
break;
|
|
|
|
/* WPA2 & 802.11i RSN */
|
|
case IE_RSN:
|
|
/* There is no OUI for version anymore, check the group cipher OUI before copying */
|
|
if (RTMPEqualMemory(pEid->Octet + 2, RSN_OUI, 3)) {
|
|
/* Copy to pVIE which will report to microsoft bssid list. */
|
|
Ptr = (u8 *)pVIE;
|
|
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid,
|
|
pEid->Len + 2);
|
|
*LengthVIE += (pEid->Len + 2);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
Length = Length + 2 + pEid->Len; /* Eid[1] + Len[1]+ content[Len] */
|
|
pEid = (struct rt_eid *) ((u8 *) pEid + 2 + pEid->Len);
|
|
}
|
|
|
|
/* For some 11a AP. it did not have the channel EID, patch here */
|
|
{
|
|
u8 LatchRfChannel = MsgChannel;
|
|
if ((pAd->LatchRfRegs.Channel > 14) && ((Sanity & 0x4) == 0)) {
|
|
if (CtrlChannel != 0)
|
|
*pChannel = CtrlChannel;
|
|
else
|
|
*pChannel = LatchRfChannel;
|
|
Sanity |= 0x4;
|
|
}
|
|
}
|
|
|
|
if (Sanity != 0x7) {
|
|
DBGPRINT(RT_DEBUG_LOUD,
|
|
("PeerBeaconAndProbeRspSanity - missing field, Sanity=0x%02x\n",
|
|
Sanity));
|
|
return FALSE;
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
MLME message sanity check
|
|
Return:
|
|
TRUE if all parameters are OK, FALSE otherwise
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN MlmeScanReqSanity(struct rt_rtmp_adapter *pAd,
|
|
void * Msg,
|
|
unsigned long MsgLen,
|
|
u8 * pBssType,
|
|
char Ssid[],
|
|
u8 * pSsidLen, u8 * pScanType)
|
|
{
|
|
struct rt_mlme_scan_req *Info;
|
|
|
|
Info = (struct rt_mlme_scan_req *)(Msg);
|
|
*pBssType = Info->BssType;
|
|
*pSsidLen = Info->SsidLen;
|
|
NdisMoveMemory(Ssid, Info->Ssid, *pSsidLen);
|
|
*pScanType = Info->ScanType;
|
|
|
|
if ((*pBssType == BSS_INFRA || *pBssType == BSS_ADHOC
|
|
|| *pBssType == BSS_ANY)
|
|
&& (*pScanType == SCAN_ACTIVE || *pScanType == SCAN_PASSIVE)) {
|
|
return TRUE;
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("MlmeScanReqSanity fail - wrong BssType or ScanType\n"));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* IRQL = DISPATCH_LEVEL */
|
|
u8 ChannelSanity(struct rt_rtmp_adapter *pAd, u8 channel)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < pAd->ChannelListNum; i++) {
|
|
if (channel == pAd->ChannelList[i].Channel)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
MLME message sanity check
|
|
Return:
|
|
TRUE if all parameters are OK, FALSE otherwise
|
|
|
|
IRQL = DISPATCH_LEVEL
|
|
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN PeerDeauthSanity(struct rt_rtmp_adapter *pAd,
|
|
void * Msg,
|
|
unsigned long MsgLen,
|
|
u8 *pAddr2, u16 * pReason)
|
|
{
|
|
struct rt_frame_802_11 * pFrame = (struct rt_frame_802_11 *) Msg;
|
|
|
|
COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
|
|
NdisMoveMemory(pReason, &pFrame->Octet[0], 2);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
MLME message sanity check
|
|
Return:
|
|
TRUE if all parameters are OK, FALSE otherwise
|
|
|
|
IRQL = DISPATCH_LEVEL
|
|
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN PeerAuthSanity(struct rt_rtmp_adapter *pAd,
|
|
void * Msg,
|
|
unsigned long MsgLen,
|
|
u8 *pAddr,
|
|
u16 * pAlg,
|
|
u16 * pSeq,
|
|
u16 * pStatus, char * pChlgText)
|
|
{
|
|
struct rt_frame_802_11 * pFrame = (struct rt_frame_802_11 *) Msg;
|
|
|
|
COPY_MAC_ADDR(pAddr, pFrame->Hdr.Addr2);
|
|
NdisMoveMemory(pAlg, &pFrame->Octet[0], 2);
|
|
NdisMoveMemory(pSeq, &pFrame->Octet[2], 2);
|
|
NdisMoveMemory(pStatus, &pFrame->Octet[4], 2);
|
|
|
|
if (*pAlg == AUTH_MODE_OPEN) {
|
|
if (*pSeq == 1 || *pSeq == 2) {
|
|
return TRUE;
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("PeerAuthSanity fail - wrong Seg#\n"));
|
|
return FALSE;
|
|
}
|
|
} else if (*pAlg == AUTH_MODE_KEY) {
|
|
if (*pSeq == 1 || *pSeq == 4) {
|
|
return TRUE;
|
|
} else if (*pSeq == 2 || *pSeq == 3) {
|
|
NdisMoveMemory(pChlgText, &pFrame->Octet[8],
|
|
CIPHER_TEXT_LEN);
|
|
return TRUE;
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("PeerAuthSanity fail - wrong Seg#\n"));
|
|
return FALSE;
|
|
}
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("PeerAuthSanity fail - wrong algorithm\n"));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
MLME message sanity check
|
|
Return:
|
|
TRUE if all parameters are OK, FALSE otherwise
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN MlmeAuthReqSanity(struct rt_rtmp_adapter *pAd,
|
|
void * Msg,
|
|
unsigned long MsgLen,
|
|
u8 *pAddr,
|
|
unsigned long * pTimeout, u16 * pAlg)
|
|
{
|
|
struct rt_mlme_auth_req *pInfo;
|
|
|
|
pInfo = (struct rt_mlme_auth_req *)Msg;
|
|
COPY_MAC_ADDR(pAddr, pInfo->Addr);
|
|
*pTimeout = pInfo->Timeout;
|
|
*pAlg = pInfo->Alg;
|
|
|
|
if (((*pAlg == AUTH_MODE_KEY) || (*pAlg == AUTH_MODE_OPEN)
|
|
) && ((*pAddr & 0x01) == 0)) {
|
|
return TRUE;
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_TRACE,
|
|
("MlmeAuthReqSanity fail - wrong algorithm\n"));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
MLME message sanity check
|
|
Return:
|
|
TRUE if all parameters are OK, FALSE otherwise
|
|
|
|
IRQL = DISPATCH_LEVEL
|
|
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN MlmeAssocReqSanity(struct rt_rtmp_adapter *pAd,
|
|
void * Msg,
|
|
unsigned long MsgLen,
|
|
u8 *pApAddr,
|
|
u16 * pCapabilityInfo,
|
|
unsigned long * pTimeout, u16 * pListenIntv)
|
|
{
|
|
struct rt_mlme_assoc_req *pInfo;
|
|
|
|
pInfo = (struct rt_mlme_assoc_req *)Msg;
|
|
*pTimeout = pInfo->Timeout; /* timeout */
|
|
COPY_MAC_ADDR(pApAddr, pInfo->Addr); /* AP address */
|
|
*pCapabilityInfo = pInfo->CapabilityInfo; /* capability info */
|
|
*pListenIntv = pInfo->ListenIntv;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
MLME message sanity check
|
|
Return:
|
|
TRUE if all parameters are OK, FALSE otherwise
|
|
|
|
IRQL = DISPATCH_LEVEL
|
|
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN PeerDisassocSanity(struct rt_rtmp_adapter *pAd,
|
|
void * Msg,
|
|
unsigned long MsgLen,
|
|
u8 *pAddr2, u16 * pReason)
|
|
{
|
|
struct rt_frame_802_11 * pFrame = (struct rt_frame_802_11 *) Msg;
|
|
|
|
COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
|
|
NdisMoveMemory(pReason, &pFrame->Octet[0], 2);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
========================================================================
|
|
Routine Description:
|
|
Sanity check NetworkType (11b, 11g or 11a)
|
|
|
|
Arguments:
|
|
pBss - Pointer to BSS table.
|
|
|
|
Return Value:
|
|
Ndis802_11DS .......(11b)
|
|
Ndis802_11OFDM24....(11g)
|
|
Ndis802_11OFDM5.....(11a)
|
|
|
|
IRQL = DISPATCH_LEVEL
|
|
|
|
========================================================================
|
|
*/
|
|
NDIS_802_11_NETWORK_TYPE NetworkTypeInUseSanity(struct rt_bss_entry *pBss)
|
|
{
|
|
NDIS_802_11_NETWORK_TYPE NetWorkType;
|
|
u8 rate, i;
|
|
|
|
NetWorkType = Ndis802_11DS;
|
|
|
|
if (pBss->Channel <= 14) {
|
|
/* */
|
|
/* First check support Rate. */
|
|
/* */
|
|
for (i = 0; i < pBss->SupRateLen; i++) {
|
|
rate = pBss->SupRate[i] & 0x7f; /* Mask out basic rate set bit */
|
|
if ((rate == 2) || (rate == 4) || (rate == 11)
|
|
|| (rate == 22)) {
|
|
continue;
|
|
} else {
|
|
/* */
|
|
/* Otherwise (even rate > 108) means Ndis802_11OFDM24 */
|
|
/* */
|
|
NetWorkType = Ndis802_11OFDM24;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* */
|
|
/* Second check Extend Rate. */
|
|
/* */
|
|
if (NetWorkType != Ndis802_11OFDM24) {
|
|
for (i = 0; i < pBss->ExtRateLen; i++) {
|
|
rate = pBss->SupRate[i] & 0x7f; /* Mask out basic rate set bit */
|
|
if ((rate == 2) || (rate == 4) || (rate == 11)
|
|
|| (rate == 22)) {
|
|
continue;
|
|
} else {
|
|
/* */
|
|
/* Otherwise (even rate > 108) means Ndis802_11OFDM24 */
|
|
/* */
|
|
NetWorkType = Ndis802_11OFDM24;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
NetWorkType = Ndis802_11OFDM5;
|
|
}
|
|
|
|
if (pBss->HtCapabilityLen != 0) {
|
|
if (NetWorkType == Ndis802_11OFDM5)
|
|
NetWorkType = Ndis802_11OFDM5_N;
|
|
else
|
|
NetWorkType = Ndis802_11OFDM24_N;
|
|
}
|
|
|
|
return NetWorkType;
|
|
}
|
|
|
|
/*
|
|
==========================================================================
|
|
Description:
|
|
Check the validity of the received EAPoL frame
|
|
Return:
|
|
TRUE if all parameters are OK,
|
|
FALSE otherwise
|
|
==========================================================================
|
|
*/
|
|
BOOLEAN PeerWpaMessageSanity(struct rt_rtmp_adapter *pAd,
|
|
struct rt_eapol_packet * pMsg,
|
|
unsigned long MsgLen,
|
|
u8 MsgType, struct rt_mac_table_entry *pEntry)
|
|
{
|
|
u8 mic[LEN_KEY_DESC_MIC], digest[80], KEYDATA[MAX_LEN_OF_RSNIE];
|
|
BOOLEAN bReplayDiff = FALSE;
|
|
BOOLEAN bWPA2 = FALSE;
|
|
struct rt_key_info EapolKeyInfo;
|
|
u8 GroupKeyIndex = 0;
|
|
|
|
NdisZeroMemory(mic, sizeof(mic));
|
|
NdisZeroMemory(digest, sizeof(digest));
|
|
NdisZeroMemory(KEYDATA, sizeof(KEYDATA));
|
|
NdisZeroMemory((u8 *)& EapolKeyInfo, sizeof(EapolKeyInfo));
|
|
|
|
NdisMoveMemory((u8 *)& EapolKeyInfo,
|
|
(u8 *)& pMsg->KeyDesc.KeyInfo, sizeof(struct rt_key_info));
|
|
|
|
*((u16 *) & EapolKeyInfo) = cpu2le16(*((u16 *) & EapolKeyInfo));
|
|
|
|
/* Choose WPA2 or not */
|
|
if ((pEntry->AuthMode == Ndis802_11AuthModeWPA2)
|
|
|| (pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK))
|
|
bWPA2 = TRUE;
|
|
|
|
/* 0. Check MsgType */
|
|
if ((MsgType > EAPOL_GROUP_MSG_2) || (MsgType < EAPOL_PAIR_MSG_1)) {
|
|
DBGPRINT(RT_DEBUG_ERROR,
|
|
("The message type is invalid(%d)! \n", MsgType));
|
|
return FALSE;
|
|
}
|
|
/* 1. Replay counter check */
|
|
if (MsgType == EAPOL_PAIR_MSG_1 || MsgType == EAPOL_PAIR_MSG_3 || MsgType == EAPOL_GROUP_MSG_1) /* For supplicant */
|
|
{
|
|
/* First validate replay counter, only accept message with larger replay counter. */
|
|
/* Let equal pass, some AP start with all zero replay counter */
|
|
u8 ZeroReplay[LEN_KEY_DESC_REPLAY];
|
|
|
|
NdisZeroMemory(ZeroReplay, LEN_KEY_DESC_REPLAY);
|
|
if ((RTMPCompareMemory
|
|
(pMsg->KeyDesc.ReplayCounter, pEntry->R_Counter,
|
|
LEN_KEY_DESC_REPLAY) != 1)
|
|
&&
|
|
(RTMPCompareMemory
|
|
(pMsg->KeyDesc.ReplayCounter, ZeroReplay,
|
|
LEN_KEY_DESC_REPLAY) != 0)) {
|
|
bReplayDiff = TRUE;
|
|
}
|
|
} else if (MsgType == EAPOL_PAIR_MSG_2 || MsgType == EAPOL_PAIR_MSG_4 || MsgType == EAPOL_GROUP_MSG_2) /* For authenticator */
|
|
{
|
|
/* check Replay Counter coresponds to MSG from authenticator, otherwise discard */
|
|
if (!NdisEqualMemory
|
|
(pMsg->KeyDesc.ReplayCounter, pEntry->R_Counter,
|
|
LEN_KEY_DESC_REPLAY)) {
|
|
bReplayDiff = TRUE;
|
|
}
|
|
}
|
|
/* Replay Counter different condition */
|
|
if (bReplayDiff) {
|
|
/* send wireless event - for replay counter different */
|
|
if (pAd->CommonCfg.bWirelessEvent)
|
|
RTMPSendWirelessEvent(pAd,
|
|
IW_REPLAY_COUNTER_DIFF_EVENT_FLAG,
|
|
pEntry->Addr, pEntry->apidx, 0);
|
|
|
|
if (MsgType < EAPOL_GROUP_MSG_1) {
|
|
DBGPRINT(RT_DEBUG_ERROR,
|
|
("Replay Counter Different in pairwise msg %d of 4-way handshake!\n",
|
|
MsgType));
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_ERROR,
|
|
("Replay Counter Different in group msg %d of 2-way handshake!\n",
|
|
(MsgType - EAPOL_PAIR_MSG_4)));
|
|
}
|
|
|
|
hex_dump("Receive replay counter ", pMsg->KeyDesc.ReplayCounter,
|
|
LEN_KEY_DESC_REPLAY);
|
|
hex_dump("Current replay counter ", pEntry->R_Counter,
|
|
LEN_KEY_DESC_REPLAY);
|
|
return FALSE;
|
|
}
|
|
/* 2. Verify MIC except Pairwise Msg1 */
|
|
if (MsgType != EAPOL_PAIR_MSG_1) {
|
|
u8 rcvd_mic[LEN_KEY_DESC_MIC];
|
|
|
|
/* Record the received MIC for check later */
|
|
NdisMoveMemory(rcvd_mic, pMsg->KeyDesc.KeyMic,
|
|
LEN_KEY_DESC_MIC);
|
|
NdisZeroMemory(pMsg->KeyDesc.KeyMic, LEN_KEY_DESC_MIC);
|
|
|
|
if (EapolKeyInfo.KeyDescVer == DESC_TYPE_TKIP) /* TKIP */
|
|
{
|
|
HMAC_MD5(pEntry->PTK, LEN_EAP_MICK, (u8 *)pMsg,
|
|
MsgLen, mic, MD5_DIGEST_SIZE);
|
|
} else if (EapolKeyInfo.KeyDescVer == DESC_TYPE_AES) /* AES */
|
|
{
|
|
HMAC_SHA1(pEntry->PTK, LEN_EAP_MICK, (u8 *)pMsg,
|
|
MsgLen, digest, SHA1_DIGEST_SIZE);
|
|
NdisMoveMemory(mic, digest, LEN_KEY_DESC_MIC);
|
|
}
|
|
|
|
if (!NdisEqualMemory(rcvd_mic, mic, LEN_KEY_DESC_MIC)) {
|
|
/* send wireless event - for MIC different */
|
|
if (pAd->CommonCfg.bWirelessEvent)
|
|
RTMPSendWirelessEvent(pAd,
|
|
IW_MIC_DIFF_EVENT_FLAG,
|
|
pEntry->Addr,
|
|
pEntry->apidx, 0);
|
|
|
|
if (MsgType < EAPOL_GROUP_MSG_1) {
|
|
DBGPRINT(RT_DEBUG_ERROR,
|
|
("MIC Different in pairwise msg %d of 4-way handshake!\n",
|
|
MsgType));
|
|
} else {
|
|
DBGPRINT(RT_DEBUG_ERROR,
|
|
("MIC Different in group msg %d of 2-way handshake!\n",
|
|
(MsgType - EAPOL_PAIR_MSG_4)));
|
|
}
|
|
|
|
hex_dump("Received MIC", rcvd_mic, LEN_KEY_DESC_MIC);
|
|
hex_dump("Desired MIC", mic, LEN_KEY_DESC_MIC);
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
/* 1. Decrypt the Key Data field if GTK is included. */
|
|
/* 2. Extract the context of the Key Data field if it exist. */
|
|
/* The field in pairwise_msg_2_WPA1(WPA2) & pairwise_msg_3_WPA1 is clear. */
|
|
/* The field in group_msg_1_WPA1(WPA2) & pairwise_msg_3_WPA2 is encrypted. */
|
|
if (CONV_ARRARY_TO_u16(pMsg->KeyDesc.KeyDataLen) > 0) {
|
|
/* Decrypt this field */
|
|
if ((MsgType == EAPOL_PAIR_MSG_3 && bWPA2)
|
|
|| (MsgType == EAPOL_GROUP_MSG_1)) {
|
|
if ((EapolKeyInfo.KeyDescVer == DESC_TYPE_AES)) {
|
|
/* AES */
|
|
AES_GTK_KEY_UNWRAP(&pEntry->PTK[16], KEYDATA,
|
|
CONV_ARRARY_TO_u16(pMsg->
|
|
KeyDesc.
|
|
KeyDataLen),
|
|
pMsg->KeyDesc.KeyData);
|
|
} else {
|
|
int i;
|
|
u8 Key[32];
|
|
/* Decrypt TKIP GTK */
|
|
/* Construct 32 bytes RC4 Key */
|
|
NdisMoveMemory(Key, pMsg->KeyDesc.KeyIv, 16);
|
|
NdisMoveMemory(&Key[16], &pEntry->PTK[16], 16);
|
|
ARCFOUR_INIT(&pAd->PrivateInfo.WEPCONTEXT, Key,
|
|
32);
|
|
/*discard first 256 bytes */
|
|
for (i = 0; i < 256; i++)
|
|
ARCFOUR_BYTE(&pAd->PrivateInfo.
|
|
WEPCONTEXT);
|
|
/* Decrypt GTK. Becareful, there is no ICV to check the result is correct or not */
|
|
ARCFOUR_DECRYPT(&pAd->PrivateInfo.WEPCONTEXT,
|
|
KEYDATA, pMsg->KeyDesc.KeyData,
|
|
CONV_ARRARY_TO_u16(pMsg->
|
|
KeyDesc.
|
|
KeyDataLen));
|
|
}
|
|
|
|
if (!bWPA2 && (MsgType == EAPOL_GROUP_MSG_1))
|
|
GroupKeyIndex = EapolKeyInfo.KeyIndex;
|
|
|
|
} else if ((MsgType == EAPOL_PAIR_MSG_2)
|
|
|| (MsgType == EAPOL_PAIR_MSG_3 && !bWPA2)) {
|
|
NdisMoveMemory(KEYDATA, pMsg->KeyDesc.KeyData,
|
|
CONV_ARRARY_TO_u16(pMsg->KeyDesc.
|
|
KeyDataLen));
|
|
} else {
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Parse Key Data field to */
|
|
/* 1. verify RSN IE for pairwise_msg_2_WPA1(WPA2) ,pairwise_msg_3_WPA1(WPA2) */
|
|
/* 2. verify KDE format for pairwise_msg_3_WPA2, group_msg_1_WPA2 */
|
|
/* 3. update shared key for pairwise_msg_3_WPA2, group_msg_1_WPA1(WPA2) */
|
|
if (!RTMPParseEapolKeyData(pAd, KEYDATA,
|
|
CONV_ARRARY_TO_u16(pMsg->KeyDesc.
|
|
KeyDataLen),
|
|
GroupKeyIndex, MsgType, bWPA2,
|
|
pEntry)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|