void rtos_vnet_recv(struct rgmp_vnet *vnet_dummy, char *data, int len)
{
// now only support 1 vnet
struct vnet_driver_s *vnet = &g_vnet[0];
do {
/* Check for errors and update statistics */
/* Check if the packet is a valid size for the uIP buffer configuration */
if (len > CONFIG_NET_BUFSIZE || len < 14) {
#ifdef CONFIG_DEBUG
cprintf("VNET: receive invalid packet of size %d\n", len);
#endif
return;
}
// Copy the data data from the hardware to vnet->sk_dev.d_buf. Set
// amount of data in vnet->sk_dev.d_len
memcpy(vnet->sk_dev.d_buf, data, len);
vnet->sk_dev.d_len = len;
/* We only accept IP packets of the configured type and ARP packets */
#ifdef CONFIG_NET_IPv6
if (BUF->type == HTONS(UIP_ETHTYPE_IP6))
#else
if (BUF->type == HTONS(UIP_ETHTYPE_IP))
#endif
{
uip_arp_ipin(&vnet->sk_dev);
uip_input(&vnet->sk_dev);
// If the above function invocation resulted in data that should be
// sent out on the network, the field d_len will set to a value > 0.
if (vnet->sk_dev.d_len > 0) {
uip_arp_out(&vnet->sk_dev);
vnet_transmit(vnet);
}
}
else if (BUF->type == htons(UIP_ETHTYPE_ARP)) {
uip_arp_arpin(&vnet->sk_dev);
// If the above function invocation resulted in data that should be
// sent out on the network, the field d_len will set to a value > 0.
if (vnet->sk_dev.d_len > 0) {
vnet_transmit(vnet);
}
}
}
while (0); /* While there are more packets to be processed */
}
static int vnet_uiptxpoll(struct uip_driver_s *dev)
{
FAR struct vnet_driver_s *vnet = (FAR struct vnet_driver_s *)dev->d_private;
/* If the polling resulted in data that should be sent out on the network,
* the field d_len is set to a value > 0.
*/
if (vnet->sk_dev.d_len > 0)
{
uip_arp_out(&vnet->sk_dev);
vnet_transmit(vnet);
/* Check if there is room in the device to hold another packet. If not,
* return a non-zero value to terminate the poll.
*/
if (vnet_is_txbuff_full(vnet->vnet))
return 1;
}
/* If zero is returned, the polling will continue until all connections have
* been examined.
*/
return 0;
}
static int vnet_txpoll(struct net_driver_s *dev)
{
FAR struct vnet_driver_s *vnet = (FAR struct vnet_driver_s *)dev->d_private;
/* If the polling resulted in data that should be sent out on the network,
* the field d_len is set to a value > 0.
*/
if (vnet->sk_dev.d_len > 0)
{
/* Look up the destination MAC address and add it to the Ethernet
* header.
*/
#ifdef CONFIG_NET_IPv4
#ifdef CONFIG_NET_IPv6
if (IFF_IS_IPv4(vnet->sk_dev.d_flags))
#endif
{
arp_out(&vnet->sk_dev);
}
#endif /* CONFIG_NET_IPv4 */
#ifdef CONFIG_NET_IPv6
#ifdef CONFIG_NET_IPv4
else
#endif
{
neighbor_out(&vnet->sk_dev);
}
#endif /* CONFIG_NET_IPv6 */
/* Send the packet */
vnet_transmit(vnet);
/* Check if there is room in the device to hold another packet. If not,
* return a non-zero value to terminate the poll.
*/
if (vnet_is_txbuff_full(vnet->vnet))
{
return 1;
}
}
/* If zero is returned, the polling will continue until all connections have
* been examined.
*/
return 0;
}
void rtos_vnet_recv(struct rgmp_vnet *rgmp_vnet, char *data, int len)
{
struct vnet_driver_s *vnet = rgmp_vnet->priv;
do
{
/* Check if the packet is a valid size for the network buffer
* configuration.
*/
if (len > CONFIG_NET_ETH_MTU || len < 14)
{
#ifdef CONFIG_DEBUG
cprintf("VNET: receive invalid packet of size %d\n", len);
#endif
return;
}
/* Copy the data data from the hardware to vnet->sk_dev.d_buf. Set
* amount of data in vnet->sk_dev.d_len
*/
memcpy(vnet->sk_dev.d_buf, data, len);
vnet->sk_dev.d_len = len;
#ifdef CONFIG_NET_PKT
/* When packet sockets are enabled, feed the frame into the packet tap */
pkt_input(&vnet->sk_dev);
#endif
/* We only accept IP packets of the configured type and ARP packets */
#ifdef CONFIG_NET_IPv4
if (BUF->type == HTONS(ETHTYPE_IP))
{
nllvdbg("IPv4 frame\n");
/* Handle ARP on input then give the IPv4 packet to the network
* layer
*/
arp_ipin(&vnet->sk_dev);
ipv4_input(&vnet->sk_dev);
/* If the above function invocation resulted in data that should be
* sent out on the network, the field d_len will set to a value > 0.
*/
if (vnet->sk_dev.d_len > 0)
{
/* Update the Ethernet header with the correct MAC address */
#ifdef CONFIG_NET_IPv6
if (IFF_IS_IPv4(vnet->sk_dev.d_flags))
#endif
{
arp_out(&vnet->sk_dev);
}
#ifdef CONFIG_NET_IPv6
else
{
neighbor_out(&vnet->sk_dev);
}
#endif
/* And send the packet */
vnet_transmit(vnet);
}
}
else
#endif
#ifdef CONFIG_NET_IPv6
if (BUF->type == HTONS(ETHTYPE_IP6))
{
nllvdbg("Iv6 frame\n");
/* Give the IPv6 packet to the network layer */
ipv6_input(&vnet->sk_dev);
/* If the above function invocation resulted in data that should be
* sent out on the network, the field d_len will set to a value > 0.
*/
if (vnet->sk_dev.d_len > 0)
{
/* Update the Ethernet header with the correct MAC address */
#ifdef CONFIG_NET_IPv4
if (IFF_IS_IPv4(vnet->sk_dev.d_flags))
{
arp_out(&vnet->sk_dev);
}
else
#endif
#ifdef CONFIG_NET_IPv6
{
neighbor_out(&vnet->sk_dev);
}
#endif
/* And send the packet */
vnet_transmit(vnet);
}
}
else
#endif
#ifdef CONFIG_NET_ARP
if (BUF->type == htons(ETHTYPE_ARP))
{
arp_arpin(&vnet->sk_dev);
/* If the above function invocation resulted in data that should
* be sent out on the network, the field d_len will set to a
* value > 0.
*/
if (vnet->sk_dev.d_len > 0)
{
vnet_transmit(vnet);
}
}
#endif
}
while (0); /* While there are more packets to be processed */
}
