C++ (Cpp) pfring_get_num_rx_channels示例

示例#1

文件： PfRingDevice.cpp 项目： HaochuanXJTU/PcapPlusPlus

uint8_t PfRingDevice::getTotalNumOfRxChannels()
{
	if (m_NumOfOpenedRxChannels > 0)
	{
		uint8_t res = pfring_get_num_rx_channels(m_PfRingDescriptors[0]);
		return res;
	}
	else
	{
		uint32_t flags = PF_RING_PROMISC | PF_RING_REENTRANT | PF_RING_HW_TIMESTAMP | PF_RING_DNA_SYMMETRIC_RSS;
		pfring* ring = pfring_open(m_DeviceName, DEFAULT_PF_RING_SNAPLEN, flags);
		uint8_t res = pfring_get_num_rx_channels(ring);
		pfring_close(ring);
		return res;
	}
}

示例#2

文件： pfring.c 项目： redBorder/PF_RING

u_int8_t pfring_open_multichannel(const char *device_name, u_int32_t caplen,
				  u_int32_t flags,
				  pfring *ring[MAX_NUM_RX_CHANNELS]) {
  u_int8_t num_channels, i, num = 0;
  char *at;
  char base_device_name[32];

  snprintf(base_device_name, sizeof(base_device_name), "%s", device_name);
  at = strchr(base_device_name, '@');
  if(at != NULL)
    at[0] = '\0';

  /* Count how many RX channel the specified device supports */
  ring[0] = pfring_open(base_device_name, caplen, flags);

  if(ring[0] == NULL)
    return(0);
  else
    num_channels = pfring_get_num_rx_channels(ring[0]);

  pfring_close(ring[0]);

  if(num_channels > MAX_NUM_RX_CHANNELS)
    num_channels = MAX_NUM_RX_CHANNELS;

  /* Now do the real job */
  for(i=0; i<num_channels; i++) {
    char dev[32];

    snprintf(dev, sizeof(dev), "%s@%d", base_device_name, i);
    ring[i] = pfring_open(dev, caplen, flags);

    if(ring[i] == NULL)
      return(num);
    else
      num++;
  }

  return(num);
}