1 /* 2 * mlmeBuilder.c 3 * 4 * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name Texas Instruments nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /** \file mlmeBuilder.c 35 * \brief 802.11 MLME Builder 36 * 37 * \see mlmeBuilder.h 38 */ 39 40 41 /***************************************************************************/ 42 /* */ 43 /* MODULE: mlmeBuilder.c */ 44 /* PURPOSE: 802.11 MLME Builder */ 45 /* */ 46 /***************************************************************************/ 47 48 #define __FILE_ID__ FILE_ID_67 49 #include "tidef.h" 50 #include "osApi.h" 51 #include "paramOut.h" 52 #include "report.h" 53 #include "802_11Defs.h" 54 #include "DataCtrl_Api.h" 55 #include "mlmeApi.h" 56 #include "mlmeSm.h" 57 #include "mlmeBuilder.h" 58 #include "TWDriver.h" 59 #include "connApi.h" 60 /* Constants */ 61 62 /* Enumerations */ 63 64 /* Typedefs */ 65 66 /* Structures */ 67 68 /* External data definitions */ 69 70 /* External functions definitions */ 71 72 /* Local function prototypes */ 73 74 /* Functions */ 75 76 TI_STATUS mlmeBuilder_sendFrame(TI_HANDLE hMlme, 77 dot11MgmtSubType_e type, 78 TI_UINT8 *pDataBuff, 79 TI_UINT32 dataLen, 80 TI_UINT8 setWepOpt) 81 { 82 mlme_t *pHandle = (mlme_t*)hMlme; 83 TI_STATUS status; 84 TTxCtrlBlk *pPktCtrlBlk; 85 TI_UINT8 *pPktBuffer; 86 TMacAddr daBssid, saBssid; 87 dot11_mgmtHeader_t *pDot11Header; 88 89 /* Allocate a TxCtrlBlk and data buffer (large enough for the max management packet) */ 90 pPktCtrlBlk = TWD_txCtrlBlk_Alloc (pHandle->hTWD); 91 pPktBuffer = txCtrl_AllocPacketBuffer (pHandle->hTxCtrl, 92 pPktCtrlBlk, 93 MAX_MANAGEMENT_FRAME_BODY_LEN + WLAN_HDR_LEN); 94 if (pPktBuffer == NULL) 95 { 96 TRACE0(pHandle->hReport, REPORT_SEVERITY_ERROR , ": No memory\n"); 97 TWD_txCtrlBlk_Free (pHandle->hTWD, pPktCtrlBlk); 98 return TI_NOK; 99 } 100 101 pDot11Header = (dot11_mgmtHeader_t *)(pPktCtrlBlk->aPktHdr); 102 103 status = mlmeBuilder_buildFrameCtrl (pHandle, type, (TI_UINT16 *)&pDot11Header->fc, setWepOpt); 104 if (status != TI_OK) 105 { 106 txCtrl_FreePacket (pHandle->hTxCtrl, pPktCtrlBlk, TI_NOK); 107 return TI_NOK; 108 } 109 110 status = ctrlData_getParamBssid(pHandle->hCtrlData, CTRL_DATA_CURRENT_BSSID_PARAM, daBssid); 111 if (status != TI_OK) 112 { 113 txCtrl_FreePacket (pHandle->hTxCtrl, pPktCtrlBlk, TI_NOK); 114 return TI_NOK; 115 } 116 117 /* copy destination mac address */ 118 MAC_COPY (pDot11Header->DA, daBssid); 119 120 status = ctrlData_getParamBssid(pHandle->hCtrlData, CTRL_DATA_MAC_ADDRESS, saBssid); 121 if (status != TI_OK) 122 { 123 txCtrl_FreePacket (pHandle->hTxCtrl, pPktCtrlBlk, TI_NOK); 124 return TI_NOK; 125 } 126 127 /* copy source mac address */ 128 MAC_COPY (pDot11Header->SA, saBssid); 129 130 /* copy BSSID (destination mac address) */ 131 MAC_COPY (pDot11Header->BSSID, daBssid); 132 133 if (pDataBuff != NULL) 134 { 135 os_memoryCopy (pHandle->hOs, pPktBuffer, pDataBuff, dataLen); 136 } 137 138 /* Update packet parameters (start-time, length, pkt-type) */ 139 pPktCtrlBlk->tTxDescriptor.startTime = os_timeStampMs (pHandle->hOs); 140 pPktCtrlBlk->tTxPktParams.uPktType = TX_PKT_TYPE_MGMT; 141 BUILD_TX_TWO_BUF_PKT_BDL (pPktCtrlBlk, (TI_UINT8 *)pDot11Header, WLAN_HDR_LEN, pPktBuffer, dataLen) 142 143 /* Enqueue packet in the mgmt-queues and run the scheduler. */ 144 status = txMgmtQ_Xmit (pHandle->hTxMgmtQ, pPktCtrlBlk, TI_FALSE); 145 146 return status; 147 } 148 149 150 TI_STATUS mlmeBuilder_buildFrameCtrl(mlme_t* pMlme, dot11MgmtSubType_e type, TI_UINT16* pFctrl, TI_UINT8 setWepOpt) 151 { 152 TI_UINT16 fc = 0; 153 154 switch (type) 155 { 156 case ASSOC_REQUEST: 157 fc |= DOT11_FC_ASSOC_REQ; 158 break; 159 case ASSOC_RESPONSE: 160 fc |= DOT11_FC_ASSOC_RESP; 161 break; 162 case RE_ASSOC_REQUEST: 163 fc |= DOT11_FC_REASSOC_REQ; 164 break; 165 case RE_ASSOC_RESPONSE: 166 fc |= DOT11_FC_REASSOC_RESP; 167 break; 168 case DIS_ASSOC: 169 fc |= DOT11_FC_DISASSOC; 170 break; 171 case AUTH: 172 fc |= DOT11_FC_AUTH; 173 break; 174 case DE_AUTH: 175 fc |= DOT11_FC_DEAUTH; 176 break; 177 case ACTION: 178 fc |= DOT11_FC_ACTION; 179 break; 180 default: 181 *pFctrl = 0; 182 return TI_NOK; 183 } 184 185 if (setWepOpt) 186 { 187 fc |= DOT11_FC_WEP; 188 } 189 190 COPY_WLAN_WORD(pFctrl, &fc); /* copy with endianess handling. */ 191 192 return TI_OK; 193 } 194 195
