int Sniffer::SinfferData() {
FileLog(SnifferLogFileName, "等待数据...");
int iRet = -1;
sockaddr_in remoteAd;
bzero(&remoteAd, sizeof(remoteAd));
int iRemoteAdLen = sizeof(sockaddr_in);
unsigned char buff[2048];
memset(buff, '\0', sizeof(buff));
iRet = recvfrom(mSocket, buff, sizeof(buff), 0, (struct sockaddr *)&remoteAd, &iRemoteAdLen);
timeval tout;
tout.tv_sec = 3;
tout.tv_usec = 0;
fd_set rset;
FD_ZERO(&rset);
FD_SET(mSocket, &rset);
int iRetS = select(mSocket + 1, &rset, NULL, NULL, &tout);
if(iRetS > 0) {
iRet = recvfrom(mSocket, buff, sizeof(buff), 0, (struct sockaddr *)&remoteAd, &iRemoteAdLen);
if(iRet > 0) {
AnalyseData(buff, iRet);
}
}
else if(iRetS == 0){
iRet = 0;
// showLog("Jni.Sniffer.SinfferData", "Sinffer no data for 3 second!");
}
else {
// ILog("Jni.Sniffer.SinfferData", "Sinffer data error!");
}
return iRet;
}
BOOL MultiProtocolProcess::DataProcessData(int nSocketID,const char *recvData ,int nRecvLen)
{
if(m_nBufLenCount + nRecvLen > MAX_RECVICE_BUFFER)
{
memset(m_RecvBuf,0,MAX_RECVICE_BUFFER);
return FALSE;
}
memcpy(m_RecvBuf+m_nBufLenCount,recvData,nRecvLen);
m_nBufLenCount = m_nBufLenCount + nRecvLen;
int nSpaceLen = m_nBufLenCount;
char *pCurPoint = m_RecvBuf;
int nPackageLen = 0;
char *m_strHead = Cmdtypelist[0].HeadData;
unsigned int temp_nHeadDataLen = strlen(m_strHead);
char *m_strTail = Cmdtypelist[0].TailData;
unsigned int temp_nTailDataLen = strlen(m_strTail);
while(nSpaceLen >= MAIN_DATA_PACKAGE_LEN)
{
int nHeadPoint = -1;
char *temppHeadCurPoint = pCurPoint;
for (int i = 0;i<nSpaceLen;i++)
{
if(strncmp(pCurPoint,m_strHead,temp_nHeadDataLen) != 0) //检查包头
{
++pCurPoint;
}
else
{
nHeadPoint = i;
break;
}
}
if (-1 == nHeadPoint)
{
TRACE(_T("[ID:%d]包头错:len:%d,recv:%s\n"),nSocketID,nSpaceLen,temppHeadCurPoint);
gWriteLogApp.WriteLog(FOR_ALARM,"%s [MultiProtocolProcess::ProcessData]%s 包头错 %s,没有找到%s\n",CTime::GetCurrentTime().Format("%H:%M:%S"),recvData,temppHeadCurPoint,m_strHead);
nSpaceLen = 0;
break;
}
char *ptempTailCurPoint = pCurPoint;
int nTailPoint = 0;
for(int i = 0 ; i < nSpaceLen; i++ )
{
if(strncmp(ptempTailCurPoint,m_strTail,temp_nTailDataLen) != 0) //检查包尾
{
++ptempTailCurPoint;
}
else
{
nTailPoint = i;
break;
}
}
if( nTailPoint > 0 )
{
nPackageLen = nTailPoint + temp_nTailDataLen;
if( nPackageLen < MAX_DATA_PACKAGE_LEN )
{
ZeroMemory(pCurPoint + nTailPoint,temp_nTailDataLen);
AnalyseData(nSocketID,pCurPoint+temp_nHeadDataLen,nPackageLen-temp_nHeadDataLen-temp_nTailDataLen,DWORD(this));
TRACE("[ID:%d]AnalyseData:%s \n",nSocketID,pCurPoint);
}
else
{
TRACE(_T("[ID:%d]包长度超过允许的最大值:len:%d,recv:%s\n"),nSocketID,nSpaceLen,recvData);
gWriteLogApp.WriteLog(FOR_ALARM,"%s [MultiProtocolProcess::ProcessData]%s包头错,没有找到%s\n",CTime::GetCurrentTime().Format("%H:%M:%S"),pCurPoint,m_strHead);
}
pCurPoint = pCurPoint + nPackageLen;
nSpaceLen = nSpaceLen - nPackageLen - nHeadPoint;
}
else
{
if( nSpaceLen > MAX_DATA_PACKAGE_LEN )
{
TRACE(_T("[ID:%d]超长的数据包:len:%d,recv:%s\n"),nSocketID,nSpaceLen,recvData);
}
else
{
TRACE(_T("[ID:%d]没有找到包尾:len:%d,recv:%s\n"),nSocketID,nSpaceLen,pCurPoint);
}
nSpaceLen = 0;
break;
}
}
if( nSpaceLen > 0 )
{
m_nBufLenCount = nSpaceLen;
if( pCurPoint != m_RecvBuf )
{
memcpy(m_RecvBuf,pCurPoint,m_nBufLenCount);
memset(m_RecvBuf+m_nBufLenCount,0,MAX_RECVICE_BUFFER-m_nBufLenCount);
}
}
else
{
m_nBufLenCount = 0;
memset(m_RecvBuf,0,MAX_RECVICE_BUFFER);
}
return TRUE;
}
