//------------------------------------------------------------------------------
tOplkError veth_addInstance(const UINT8 aSrcMac_p[6])
{
tOplkError ret = kErrorOk;
UNUSED_PARAMETER(aSrcMac_p);
// Register receive callback function for incoming virtual Ethernet frames
ret = dllk_regAsyncHandler(receiveFrameCb);
return ret;
}
//------------------------------------------------------------------------------
static int veth_open(struct net_device* pNetDevice_p)
{
tOplkError ret = kErrorOk;
//open the device
//start the interface queue for the network subsystem
netif_start_queue(pNetDevice_p);
// register callback function in DLL
ret = dllk_regAsyncHandler(veth_receiveFrame);
DEBUG_LVL_VETH_TRACE("veth_open: dllk_regAsyncHandler returned 0x%02X\n", ret);
return 0;
}
//------------------------------------------------------------------------------
tOplkError veth_init(const UINT8 aSrcMac_p[6])
{
tOplkError ret;
struct ifreq ifr;
int err;
if ((vethInstance_l.fd = open(TUN_DEV_NAME, O_RDWR)) < 0)
{
DEBUG_LVL_VETH_TRACE("Error opening %s\n", TUN_DEV_NAME);
return kErrorNoFreeInstance;
}
OPLK_MEMSET(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strncpy(ifr.ifr_name, PLK_VETH_NAME, IFNAMSIZ);
if ((err = ioctl(vethInstance_l.fd, TUNSETIFF, (void*)&ifr)) < 0)
{
DEBUG_LVL_VETH_TRACE("Error setting TUN IFF options\n");
close(vethInstance_l.fd);
return err;
}
// save MAC address of TAP device and Ethernet device to be able to
// exchange them
OPLK_MEMCPY(vethInstance_l.macAdrs, aSrcMac_p, 6);
getMacAdrs(vethInstance_l.tapMacAdrs);
// start tap receive thread
vethInstance_l.fStop = FALSE;
if (pthread_create(&vethInstance_l.threadHandle, NULL, vethRecvThread, (void*)&vethInstance_l) != 0)
return kErrorNoFreeInstance;
#if (defined(__GLIBC__) && (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 12))
pthread_setname_np(vethInstance_l.threadHandle, "oplk-veth");
#endif
// register callback function in DLL
ret = dllk_regAsyncHandler(receiveFrameCb);
return ret;
}