tools/kvm/net/uip/ipv4.c

   1 #include "kvm/uip.h"
   2
   3 int uip_tx_do_ipv4(struct uip_tx_arg *arg)
   4 {
   5         struct uip_ip *ip;
   6
   7         ip = (struct uip_ip *)(arg->eth);
   8
   9         if (uip_ip_hdrlen(ip) != 20) {
  10                 pr_warning("IP header length is not 20 bytes");
  11                 return -1;
  12         }
  13
  14         switch (ip->proto) {
  15         case 0x01: /* ICMP */
  16                 uip_tx_do_ipv4_icmp(arg);
  17                 break;
  18         case 0x06: /* TCP */
  19                 uip_tx_do_ipv4_tcp(arg);
  20                 break;
  21         case 0x11: /* UDP */
  22                 uip_tx_do_ipv4_udp(arg);
  23                 break;
  24         default:
  25                 break;
  26         }
  27
  28         return 0;
  29 }