/*
========================================================================
Routine Description:
1. Append bit 1 to end of the message
2. Append the length of message in rightmost 64 bits
3. Transform the Hash Value to digest message
Arguments:
pMD5_CTX Pointer to MD5_CTX_STRUC
Return Value:
digestMessage Digest message
Note:
None
========================================================================
*/
VOID RT_MD5_End (
IN MD5_CTX_STRUC *pMD5_CTX,
OUT UINT8 DigestMessage[])
{
UINT index;
UINT64 message_length_bits;
/* append 1 bits to end of the message */
NdisFillMemory(pMD5_CTX->Block + pMD5_CTX->BlockLen, 1, 0x80);
/* 55 = 64 - 8 - 1: append 1 bit(1 byte) and message length (8 bytes) */
if (pMD5_CTX->BlockLen > 55)
RT_MD5_Hash(pMD5_CTX);
/* End of if */
/* Append the length of message in rightmost 64 bits */
message_length_bits = pMD5_CTX->MessageLen*8;
message_length_bits = cpu2le64(message_length_bits);
NdisMoveMemory(&pMD5_CTX->Block[56], &message_length_bits, 8);
RT_MD5_Hash(pMD5_CTX);
/* Return message digest, transform the UINT32 hash value to bytes */
for (index = 0; index < 4;index++)
pMD5_CTX->HashValue[index] = cpu2le32(pMD5_CTX->HashValue[index]);
/* End of for */
NdisMoveMemory(DigestMessage, pMD5_CTX->HashValue, MD5_DIGEST_SIZE);
} /* End of RT_MD5_End */
/*
==========================================================================
Description:
Prepare Measurement request action frame and enqueue it into
management queue waiting for transmition.
Parametrs:
1. the destination mac address of the frame.
Return : None.
==========================================================================
*/
VOID EnqueueMeasurementReq(
IN PRTMP_ADAPTER pAd,
IN PUCHAR pDA,
IN UINT8 MeasureToken,
IN UINT8 MeasureReqMode,
IN UINT8 MeasureReqType,
IN UINT8 MeasureCh,
IN UINT16 MeasureDuration)
{
PUCHAR pOutBuffer = NULL;
NDIS_STATUS NStatus;
ULONG FrameLen;
HEADER_802_11 ActHdr;
MEASURE_REQ_INFO MeasureReqIE;
UINT8 RmReqDailogToken = RandomByte(pAd);
UINT64 MeasureStartTime = GetCurrentTimeStamp(pAd);
// build action frame header.
MgtMacHeaderInit(pAd, &ActHdr, SUBTYPE_ACTION, 0, pDA,
pAd->CurrentAddress);
NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer); //Get an unused nonpaged memory
if(NStatus != NDIS_STATUS_SUCCESS)
{
DBGPRINT(RT_DEBUG_TRACE, ("%s() allocate memory failed \n", __func__));
return;
}
NdisMoveMemory(pOutBuffer, (PCHAR)&ActHdr, sizeof(HEADER_802_11));
FrameLen = sizeof(HEADER_802_11);
InsertActField(pAd, (pOutBuffer + FrameLen), &FrameLen, CATEGORY_SPECTRUM, SPEC_MRQ);
// fill Dialog Token
InsertDialogToken(pAd, (pOutBuffer + FrameLen), &FrameLen, MeasureToken);
// prepare Measurement IE.
NdisZeroMemory(&MeasureReqIE, sizeof(MEASURE_REQ_INFO));
MeasureReqIE.Token = RmReqDailogToken;
MeasureReqIE.ReqMode.word = MeasureReqMode;
MeasureReqIE.ReqType = MeasureReqType;
MeasureReqIE.MeasureReq.ChNum = MeasureCh;
MeasureReqIE.MeasureReq.MeasureStartTime = cpu2le64(MeasureStartTime);
MeasureReqIE.MeasureReq.MeasureDuration = cpu2le16(MeasureDuration);
InsertMeasureReqIE(pAd, (pOutBuffer + FrameLen), &FrameLen, &MeasureReqIE);
MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
MlmeFreeMemory(pAd, pOutBuffer);
return;
}