void udp_poll(FAR struct net_driver_s *dev, FAR struct udp_conn_s *conn)
{
/* Verify that the UDP connection is valid */
if (conn->lport != 0)
{
/* Set-up for the application callback */
dev->d_appdata = &dev->d_buf[NET_LL_HDRLEN(dev) + IPUDP_HDRLEN];
dev->d_snddata = &dev->d_buf[NET_LL_HDRLEN(dev) + IPUDP_HDRLEN];
dev->d_len = 0;
dev->d_sndlen = 0;
/* Perform the application callback */
(void)udp_callback(dev, conn, UDP_POLL);
/* If the application has data to send, setup the UDP/IP header */
if (dev->d_sndlen > 0)
{
udp_send(dev, conn);
return;
}
}
/* Make sure that d_len is zero meaning that there is nothing to be sent */
dev->d_len = 0;
}
void ip_callback(u_char * arg, const struct pcap_pkthdr *pkthdr,
const u_char * packet)
{
ipn++;
struct ip_header *hdr;
hdr = (struct ip_header *)(packet + 14);
sprintf(spacket.protocol, "%s", "IP");
sprintf(spacket.src_ip, "%s", inet_ntoa(hdr->src_addr));
sprintf(spacket.dst_ip, "%s", inet_ntoa(hdr->dst_addr));
switch (hdr->protocol) {
case 6:
tcp_callback(arg, pkthdr, packet);
break;
case 17:
udp_callback(arg, pkthdr, packet);
break;
case 1:
icmp_callback(arg, pkthdr, packet);
break;
default:
break;
}
}
void udp_poll(FAR struct net_driver_s *dev, FAR struct udp_conn_s *conn)
{
/* Verify that the UDP connection is valid */
if (conn->lport != 0)
{
/* Set up for the callback. We can't know in advance if the application
* is going to send a IPv4 or an IPv6 packet, so this setup may not
* actually be used.
*/
#if defined(CONFIG_NET_IPv4)
udp_ipv4_select(dev);
#else /* if defined(CONFIG_NET_IPv6) */
udp_ipv6_select(dev);
#endif
dev->d_len = 0;
dev->d_sndlen = 0;
/* Perform the application callback */
(void)udp_callback(dev, conn, UDP_POLL);
/* If the application has data to send, setup the UDP/IP header */
if (dev->d_sndlen > 0)
{
udp_send(dev, conn);
return;
}
}
/* Make sure that d_len is zero meaning that there is nothing to be sent */
dev->d_len = 0;
}