static void skel_receive(FAR struct skel_driver_s *skel) { do { /* Check for errors and update statistics */ /* Check if the packet is a valid size for the uIP buffer configuration */ /* Copy the data data from the hardware to skel->sk_dev.d_buf. Set * amount of data in skel->sk_dev.d_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(&skel->sk_dev); uip_input(&skel->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 (skel->sk_dev.d_len > 0) { uip_arp_out(&skel->sk_dev); skel_transmit(skel); } } else if (BUF->type == htons(UIP_ETHTYPE_ARP)) { uip_arp_arpin(&skel->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 (skel->sk_dev.d_len > 0) { skel_transmit(skel); } } } while (); /* While there are more packets to be processed */ }
static int skel_txpoll(FAR struct net_driver_s *dev) { FAR struct skel_driver_s *priv = (FAR struct skel_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 (priv->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(priv->sk_dev.d_flags)) #endif { arp_out(&priv->sk_dev); } #endif /* CONFIG_NET_IPv4 */ #ifdef CONFIG_NET_IPv6 #ifdef CONFIG_NET_IPv4 else #endif { neighbor_out(&priv->sk_dev); } #endif /* CONFIG_NET_IPv6 */ /* Send the packet */ skel_transmit(priv); /* Check if there is room in the device to hold another packet. If not, * return a non-zero value to terminate the poll. */ } /* If zero is returned, the polling will continue until all connections have * been examined. */ return 0; }
static int skel_uiptxpoll(struct uip_driver_s *dev) { FAR struct skel_driver_s *skel = (FAR struct skel_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 (skel->sk_dev.d_len > 0) { uip_arp_out(&skel->sk_dev); skel_transmit(skel); /* Check if there is room in the device to hold another packet. If not, * return a non-zero value to terminate the poll. */ } /* If zero is returned, the polling will continue until all connections have * been examined. */ return 0; }
static void skel_receive(FAR struct skel_driver_s *priv) { do { /* Check for errors and update statistics */ /* Check if the packet is a valid size for the network buffer * configuration. */ /* Copy the data data from the hardware to priv->sk_dev.d_buf. Set * amount of data in priv->sk_dev.d_len */ #ifdef CONFIG_NET_PKT /* When packet sockets are enabled, feed the frame into the packet tap */ pkt_input(&priv->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"); NETDEV_RXIPV4(&priv->sk_dev); /* Handle ARP on input then give the IPv4 packet to the network * layer */ arp_ipin(&priv->sk_dev); ipv4_input(&priv->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 (priv->sk_dev.d_len > 0) { /* Update the Ethernet header with the correct MAC address */ #ifdef CONFIG_NET_IPv6 if (IFF_IS_IPv4(priv->sk_dev.d_flags)) #endif { arp_out(&priv->sk_dev); } #ifdef CONFIG_NET_IPv6 else { neighbor_out(&kel->sk_dev); } #endif /* And send the packet */ skel_transmit(priv); } } else #endif #ifdef CONFIG_NET_IPv6 if (BUF->type == HTONS(ETHTYPE_IP6)) { nllvdbg("Iv6 frame\n"); NETDEV_RXIPV6(&priv->sk_dev); /* Give the IPv6 packet to the network layer */ ipv6_input(&priv->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 (priv->sk_dev.d_len > 0) { /* Update the Ethernet header with the correct MAC address */ #ifdef CONFIG_NET_IPv4 if (IFF_IS_IPv4(priv->sk_dev.d_flags)) { arp_out(&priv->sk_dev); } else #endif #ifdef CONFIG_NET_IPv6 { neighbor_out(&priv->sk_dev); } #endif /* And send the packet */ skel_transmit(priv); } } else #endif #ifdef CONFIG_NET_ARP if (BUF->type == htons(ETHTYPE_ARP)) { arp_arpin(&priv->sk_dev); NETDEV_RXARP(&priv->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 (priv->sk_dev.d_len > 0) { skel_transmit(priv); } } #endif else { NETDEV_RXDROPPED(&priv->sk_dev); } } while (); /* While there are more packets to be processed */ }