コード例 #1
0
ファイル: MprDejitter.cpp プロジェクト: ATHLSolutions/sipxecs
//Add a buffer containing an incoming RTP packet to the dejitter pool
OsStatus MprDejitter::pushPacket(MpBufPtr pRtp)
{
   int index;

   MpBuf_touch(pRtp);
   mRtpLock.acquire();
   index = getSeqNum(pRtp) % MAX_RTP_PACKETS;
   if (NULL != mpPackets[index]) {
      mNumDiscarded++;
#ifdef MP_STREAM_DEBUG /* [ */
      if (mNumDiscarded < 40) {
         osPrintf("Dej: discard#%d Seq: %d -> %d at 0x%X\n",
            mNumDiscarded,
            getSeqNum(mpPackets[index]),
            getSeqNum(pRtp), *pOsTC);
      }
#endif /* MP_STREAM_DEBUG ] */
      MpBuf_delRef(mpPackets[index]);
      mpPackets[index] = NULL;
      mNumPackets--;
   }
   mpPackets[index] = pRtp;
   mNumPackets++;
   mRtpLock.release();

   return OS_SUCCESS;
}
コード例 #2
0
ファイル: common.c プロジェクト: jbodah/grad_work
// jbodah
void printPacketContents( packet *newPacket ) {
  char dstString[30] ;
  bufFlush( dstString ) ;
  
  getVerboseFrameKind(newPacket, dstString) ;
  
  printf( "\tseqNum\t\t'%c' %d \n\tframeKind\t%s \n\tpayload\t\t%s \n\tCRC\t\t'%c' %d\n",
            getSeqNum(newPacket), (int)getSeqNum(newPacket),
            dstString,
            getPayload(newPacket),
            getCRC(newPacket), (int)getCRC(newPacket)
  ) ;
}
コード例 #3
0
ファイル: reliapack.cpp プロジェクト: bowbahdoe/Carol
Reliapack::Reliapack(char *buf, int length, struct sockaddr_in paddr) {
  int totalLen = getTotalLength(buf);
  //printf("received new packet of length %d\n", totalLen);
  //if this is already a complete packet
  /*  if(totalLen == length - HEADER_LENGTH) {
    packets = new char * [1];
    lengths = new int[1];
    *packets = buf;
    *lengths = totalLength;
    numPackets = 1;
    }else {*/
    numPackets = (totalLen + MAX_DATA_LENGTH - 1) / MAX_DATA_LENGTH;
    numPackets = numPackets ? numPackets : 1;
    packets = new char * [numPackets];
    lengths = new int[numPackets];
    for(int i=0; i<numPackets; i++) {
      packets[i] = NULL;
      lengths[i] = 0;
    }
    addPacket(buf, length);
    //}
  sequenceNum = getSeqNum(buf);
  memcpy(&address, &paddr, sizeof(struct sockaddr_in));
  ftime(&lastEventTime); //reset the last event time
}
コード例 #4
0
ファイル: rtppkt.cpp プロジェクト: PipoloyJo/ccrtp
void OutgoingRTPPkt::protect(uint32 ssrc, CryptoContext* pcc)
{
    /* Encrypt the packet */
    uint64 index = ((uint64)pcc->getRoc() << 16) | (uint64)getSeqNum();

    pcc->srtpEncrypt(this, index, ssrc);

    // NO MKI support yet - here we assume MKI is zero. To build in MKI
    // take MKI length into account when storing the authentication tag.

    /* Compute MAC */
    pcc->srtpAuthenticate(this, pcc->getRoc(),
                                const_cast<uint8*>(getRawPacket()+srtpDataOffset) );
    /* Update the ROC if necessary */
    if (getSeqNum() == 0xFFFF ) {
        pcc->setRoc(pcc->getRoc() + 1);
    }
}
コード例 #5
0
ファイル: Packet.cpp プロジェクト: albertgfliu/cs118-project2
uint16_t
Packet::getExpectedAckNumber(int maxSeqNum)
{
	uint16_t seqNum = getSeqNum((struct TCPHeader *)&m_header);
	uint16_t payloadSize = m_size - sizeof(struct TCPHeader);

	uint16_t expectedAckNum = seqNum + payloadSize;

	if (expectedAckNum > maxSeqNum) {
		expectedAckNum -= maxSeqNum;
	}

	return expectedAckNum;
}
コード例 #6
0
ファイル: reliapack.cpp プロジェクト: bowbahdoe/Carol
char * Reliapack::getAckPacket(char *packet) {
  char * buf = new char[HEADER_LENGTH];
  //copy the sequence number and retry number into new packet.
  for(int i=0; i<4; i++) {
    //buf[i+4] = packet[i];
    buf[i] = 0;
  }
  for(int i=8; i<HEADER_LENGTH; i++)
    buf[i] = packet[i];

  setResponseSeqNum(buf, getSeqNum(packet));
  setResponseRetryNum(buf, getRetryNum(packet));
  return buf;
}
コード例 #7
0
ファイル: MprDejitter.cpp プロジェクト: ATHLSolutions/sipxecs
MpBufPtr MprDejitter::pullPacket(void)
{
   MpBufPtr found = NULL;
   MpBufPtr cur;
   int curSeq;
   int first = -1;
   int firstSeq = 0;            // dummy value
   int i;

   mRtpLock.acquire();

   // Find smallest seq number
   for (i=0; i<MAX_RTP_PACKETS; i++)
   {
       cur = mpPackets[i];
       if (cur != NULL)
       {
           curSeq = getSeqNum(mpPackets[i]);
           if (first == -1 || curSeq < firstSeq)
           {
               first = i;
               firstSeq = curSeq;
           }
       }
   }

   if (-1 != first)
   {
      found = mpPackets[first];
      mpPackets[first] = NULL;
      mNumPackets--;
      MpBuf_touch(found);
   }

   mRtpLock.release();

   return found;
}
コード例 #8
0
ファイル: Packet.cpp プロジェクト: albertgfliu/cs118-project2
uint16_t 
Packet::getSeqNumber()
{
	return getSeqNum((struct TCPHeader *)&m_header);
}