tools/kvm/net/uip/icmp.c

   1 #include "kvm/uip.h"
   2
   3 int uip_tx_do_ipv4_icmp(struct uip_tx_arg *arg)
   4 {
   5         struct uip_ip *ip, *ip2;
   6         struct uip_icmp *icmp2;
   7         struct uip_buf *buf;
   8
   9         buf             = uip_buf_clone(arg);
  10
  11         icmp2           = (struct uip_icmp *)(buf->eth);
  12         ip2             = (struct uip_ip *)(buf->eth);
  13         ip              = (struct uip_ip *)(arg->eth);
  14
  15         ip2->sip        = ip->dip;
  16         ip2->dip        = ip->sip;
  17         ip2->csum       = 0;
  18         /*
  19          * ICMP reply: 0
  20          */
  21         icmp2->type     = 0;
  22         icmp2->csum     = 0;
  23         ip2->csum       = uip_csum_ip(ip2);
  24         icmp2->csum     = uip_csum_icmp(icmp2);
  25
  26         uip_buf_set_used(arg->info, buf);
  27
  28         return 0;
  29 }