usr/src/grub/grub-0.97/netboot/ip.h

   1 #ifndef _IP_H
   2 #define _IP_H
   3
   4 /* We need 'uint16_t' */
   5 #include "types.h"
   6 /* We need 'in_addr' */
   7 #include "in.h"
   8
   9 struct iphdr {
  10         uint8_t  verhdrlen;
  11         uint8_t  service;
  12         uint16_t len;
  13         uint16_t ident;
  14         uint16_t frags;
  15         uint8_t  ttl;
  16         uint8_t  protocol;
  17         uint16_t chksum;
  18         in_addr src;
  19         in_addr dest;
  20 };
  21
  22 extern void build_ip_hdr(unsigned long __destip, int __ttl, int __protocol,
  23                          int __option_len, int __len, const void * __buf);
  24
  25 extern int ip_transmit(int __len, const void * __buf);
  26
  27 extern uint16_t ipchksum(const void * __data, unsigned long __length);
  28
  29 extern uint16_t add_ipchksums(unsigned long __offset, uint16_t __sum,
  30                               uint16_t __new);
  31
  32
  33
  34
  35
  36 #endif  /* _IP_H */